Service manual

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SERVICE

MANUAL

REVISION 0

FY8-13EZ-000

MAY 1997

Summary of content (535 pages)

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IMPORTANT THIS DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN, TO SERVE AS A SOURCE OF REFERENCE FOR WORK IN THE FIELD. SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER. ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.
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INTRODUCTION This Service Manual provides the basic facts and figures about the plain paper copier NP6330 needed for servicing it in the field. The NP6330 is designed to enable full automation of copying work, and may be configured with various accessories. (For detailed descriptions of sorters, ADFs, RDFs, and controllers, see their respective Service Manuals.
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Chapter 9 Installation introduces requirements for the site of installation, and shows how the copier may be installed using step-by-step instructions. Chapter 10 Maintenance and Inspection provides tables of periodically replaced parts and consumables/durables and scheduled servicing charts. Chapter 11 Troubleshooting provides tables of maintenance/inspection, standards/adjustments, and problem identification (image fault/malfunction). Appendix contains a general timing chart and general circuit diagrams.
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System Configuration The NP6330 may be configured with the following accessory: ADF-E1 Feeds a stack of originals one by one to the copyboard for copying. Sorter-E1 Automatically sorts (page collation) and groups up to 20 sets of copies. COPYRIGHT © 1997 CANON INC. Stapler Sorter-D2/MS-B1 Automatically sorts (page collation) and groups up to 10 sets of copies. In addition to sorter functions, is equipped with stapler sorter functions which automatically staple sorted copies. (Not applicable to MS-B1.
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CONTENTS CHAPTER 1 GENERAL DESCRIPTION I. II. III. IV. FEATURES.........................................1-1 SPECIFICATIONS ..............................1-2 A. Copier ............................................1-2 1. Type..........................................1-2 2. System .....................................1-2 3. Performance .............................1-3 B. Paper Deck Pedestal-M1 ..............1-8 NAMES OF PARTS ............................1-9 A. Exterior View .................................
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CHAPTER 3 EXPOSURE SYSTEM I. II. III. IV. BASIC OPERATION ...........................3-1 A. Varying the Reproduction Ratio.....3-1 LENS DRIVE SYSTEM ......................3-2 A. Movement of the Lens...................3-2 1. Outline ......................................3-2 2. Lens Motor Drive Circuit...........3-4 3. Focusing ...................................3-5 SCANNER DRIVE MECHANISM .......3-6 A. Driving the Scanner.......................3-6 1. Outline ......................................3-6 2.
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III. A. Outline ...........................................4-21 B. Detecting the Level of Toner and Controlling the Supply ...................4-23 C. Stopping the Hopper Motor in Response to a Rotation Error........4-24 DISASSEMBLY AND ASSEMBLY......4-25 A. Scanning Lamp Assembly.............4-25 1. Removing the Scanning Lamp ...4-25 2. Orientation of the Scanning Lamp ........................................4-26 3. Removing the Thermal Fuse....4-27 B. Blank Exposure Lamp Assembly ..4-28 1.
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7. Adjusting the Pressure of the Separation Roller......................5-53 8. Positioning the Pick-Up Assembly Pick-Up Roller Releasing Solenoid (SL1, SL2) .................5-53 9. Releasing the Lifter ..................5-54 10.Adjusting the Registration (left/right) ..................................5-55 B. Multifeeder Assembly ....................5-56 1. Removing the Multifeeder Assembly ..................................5-56 2. Removing the Multifeeder PickUp Roller/Separation Pad ........5-56 3.
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CHAPTER 7 CONTROLS AND EXTERNALS I. II. III. IV. FANS ..................................................7-1 POWER SUPPLY ...............................7-3 A. Outline of Power Supply................7-3 B. Protection Mechanisms of the Power Supply Circuit .....................7-5 ERROR DETECTION CIRCUIT .........7-6 A. Outline ...........................................7-6 B. Scanning Lamp Error Activation Detection Circuit ............................7-7 C.
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3. Removing the Pick-Up Roller ...8-30 4. Removing the Feeding Roller...8-31 5. Removing the Separation Roller ........................................8-33 6. Adjusting the Pressure of the Separation Roller......................8-34 7. Position of the Pick-Up Roller Release Solenoid (SL1) ...........8-34 CHAPTER 9 INSTALLATION I. II. SELECTING THE SITE ......................9-1 UNPACKING AND INSTALLATION....9-2 A. Unpacking and Removing the Metal Fixings ...........................9-2 B. Supplying Toner.
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III. 3. Routing the Blank Shutter Cable ........................................11-30 4. Routing the Charging Wire.......11-31 5. Stringing the Guide Wire ..........11-32 6. Adjusting the Height of the Charging Wire ..........................11-32 7. Position of the Developing Assembly Magnetic Seal ..........11-33 8. After Replacing the Drum unit ..11-33 D. Pick-Up / Feeding System.............11-34 1. Orientation of the Pick-Up Roller ........................................11-34 2.
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9. E051 .........................................11-78 10.E053 .........................................11-79 11. E060 .........................................11-80 12.E202 .........................................11-81 13.E203 .........................................11-81 14.E204 .........................................11-82 15.E210 .........................................11-82 16.E220 .........................................11-82 17.E224 .........................................11-83 18.E240 ........
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APPENDIX A. GENERAL TIMING CHART ..........A-1 B. SIGNALS AND ABBREVIATIONS A-2 C. GENERAL CIRCUIT DIAGRAM....A-5 Not available COPYRIGHT © 1997 CANON INC. D. PEDESTAL CONTROLLER ..........A-9 Not available E. SPECIAL TOOLS LIST .................A-11 F. SOLVENTS AND OILS..................A-12 CANON NP6330 REV.
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CHAPTER 1 GENERAL DESCRIPTION This chapter describes the outline of the features, how to operate and copying process of this copier. I. II. III. IV. V. FEATURES.........................................1-1 SPECIFICATIONS ..............................1-2 A. Copier ............................................1-2 B. Paper Deck Pedestal-M1 ..............1-8 NAMES OF PARTS ............................1-9 A. Exterior View .................................1-9 B. Cross Section ................................
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CHAPTER 1 GENERAL DESCRIPTION I. FEATURES 1. Front-loading. • Paper is supplied from the front so that it requires less floor space. • Although designed as a compact machine, its source of paper may hold as many as 2550 sheets (with the addition of a paper deck pedestal (accessory)). 2. High-quality toner for high-quality images. • Its high-quality one-component toner ensures enhanced reproduction of text and photos.
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CHAPTER 1 GENERAL DESCRIPTION II. SPECIFICATIONS A. Copier 1. Type Body Desk-top Copyboard Fixed Light source Halogen lamp (300 W, 120 V; 340 W, 220/240 V) Lens Zoom lens Photosensitive medium OPC (φ30) 2.
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CHAPTER 1 GENERAL DESCRIPTION 3. Performance Item Specifications Sheet, book, 3-D object (2 kg / 4.4lb max.) Maximum size of original A3 (297 x 420 mm)/LDG (11” x 17”*1) Reproduction ratio Direct, 4R4E or 4R3E (Table 1-201), zoom 48~205%(Display range: 49 to 204%) Wait time 35 sec or less (at 20°C / 68F room temperature) First copy 5.75 sec or less (A4, Direct, non-AE, pick-up from cassette 1) Continuous copying 100 copies max. Copying speed See Tables 1-202 and 1-203.
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CHAPTER 1 GENERAL DESCRIPTION Item Specifications Temperature Operating Humidity environAtmospheric ment pressure 7.5°C / 45.5F to 32.5°C / 90.5F 5% to 85% RH 608 hPa to 1013 hPa (0.5 to 1 atm) Serial numbers Power supply 120V 60Hz NHE XXXXX 120V 60Hz (Taiwan) NHF XXXXX 220/240V 50Hz PDE XXXXX 220/240V 50Hz (Australia) RBN XXXXX Maximum Power consump- Standby tion Continuous copying Noise 1-4 0.834 kWh (average; reference only) 71 dB or less Standby 50 dB or less 0.05 ppm or less (avr; 0.
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CHAPTER 1 GENERAL DESCRIPTION Copying ratio AB Inch Direct 1:1 1:1 Reduce I 1:0.500 1:0.500 Reduce II 1:0.707 1:0.647 Reduce III 1:0.816 1:0.733 Reduce IV 1:0.865 1:0.786 Enlarge I 1:1.154 1:1.214 Enlarge II 1:1.224 1:1.294 Enlarge III 1:1.414 1:2.000 Enlarge IV 1:2.000 Zoom 49 ~ 204% in 1% increments Table 1-201 Preset Ratios COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 1 GENERAL DESCRIPTION • Pick-Up from Cassette 1 Copying ratio Direct Copy size(mm) Copies A3 (297 × 420) 17 A4 (210 × 297) 31 A5 (148 × 210) 31 B4 (257 × 364) 19 B5 (182 × 257) 31 A4R (297 × 210) 23 A5R (210 × 148) 31 B5R (257 × 182) 26 1:0.500 A3 → A5R 23 1:0.707 A3 → A4R 20 B4 → B5R 22 1:0.816 B4 → A4R 21 1:0.865 A3 → B4 18 A4 → B5 27 1:2.000 A5R → A3 17 1:1.414 A4R → A3 17 B5R → B4 17 1:1.224 A4R → B4 19 1:1.
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CHAPTER 1 GENERAL DESCRIPTION • Pick-Up from Cassette 1 Copy size*1 Copying ratio Direct LTR 30 11” × 17” 16 LGL 20 LTRR 24 STMT 31 STMTR 30 1:0.786 LGL → LTRR 21 1:0.733 11” × 17” → LGL 19 11” × 15” → LTRR 21 1:0.647 11” × 17” → LTRR 20 1:0.500 11” × 17” → STMTR 23 1:2.000 STMTR 11” × 17” 17 1:1.294 LTRR → 11” × 17” 17 1:1.214 LGL → 11” × 17” 17 1:1 Reduce Enlarge *1 Copies 11”x17”=279.4x431.8mm, LGL=215.9x355.6mm, LTR=215.9x279.4mm, STMT=139.7X215.
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CHAPTER 1 GENERAL DESCRIPTION B. Paper Deck Pedestal-M1 Item Specifications Pick-up Clawless Loading Front loading Type of copy paper Plain paper (64 to 80 g/m2), colored paper*1 Size of stack A4 (horizontal), B5 (horizontal), LTR*2 (horizontal) Capacity 162 mm / 6.38” high (stack; one-side; 1500 sheets of 80 g/m2 paper) Size switching By relocating partition plate in increments Power supply Not provided (DC power supplied from copier) Weight 46kg / 101 lb Width 610mm / 24.
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CHAPTER 1 GENERAL DESCRIPTION III. NAMES OF PARTS A. Exterior View q w u e r t y q w e r Copyboard cover Control panel Power switch Front door t Cassette 1 y Cassette 2 u Copy tray Figure 1-301 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 1 GENERAL DESCRIPTION e w r t q y u i o q w e r t Fixing assembly knob Total counter Hopper Developing assembly releasing lever Registration knob y u i o Multifeeder Feeding assembly releasing lever Horizontal registration knob Lower feeder lever Figure 1-302 1-10 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 1 GENERAL DESCRIPTION B. Cross Section 1. Body Cross Section q e t u w r y i o!0 !1 !2 !3 !5 !6 !8 !9 @0 @@ 1 2 !4 !7 $3 #7 #5 #2 #0 $4 $2 $1 $0 #9 #8 #6 #4 #3 #1 @9 @8@7 @6 q w e r t y u i o !0 !1 !2 !3 !4 !5 !6 !7 Delivery roller 2 No.3 mirror No.2 mirror Delivery roller 1 No.
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CHAPTER 1 GENERAL DESCRIPTION 2. Paper Deck Pedestal-M1 q u q w e r w y e t r t Deck separation roller y Lifter u Deck Deck pick-up roller Deck vertical path roller Vertical path roller 3 Deck feeding roller Figure 1-304 1-12 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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IV. OPERATION A.
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B.
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CHAPTER 1 GENERAL DESCRIPTION No. Name 1 OK key Description Press it to accept selected items and functions when setting modes. 2 User Mode key Press it to start or end user mode. You can change specifications or standard mode and can set or change adjustment/cleaning settings. 3 Image Compose key Press it to start/end image composition mode. 4 Page Separate key Press it to start/end page separation mode. 5 Odd/Even key*1 Press it to specify either an odd or even number of originals.
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CHAPTER 1 GENERAL DESCRIPTION No. Name 25 Direct key Description Press it to return to Direct (100%). 26 Reduce/Enlarge key Press it to set a preset reproduction ratio (reduction/enlargement). 27 Copy Density key Press it to manually adjust the copy density. 28 AE key Press it to start/end AE (automatic exposure). 29 Mix key* 30 Frame Erase key Press it to start/end frame erasing mode. 31 Bind Margin key Press it to start/end binding margin mode.
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CHAPTER 1 GENERAL DESCRIPTION C. User Mode To To To • start User Mode, press key. select a mode, press the number (keypad) and the OK key in sequence. change the setting, press the Zoom (+) / Zoom (-) key and OK key. Press the clear key to clear a setting entered by mistake when making mode settings. The following modes may freely be made use of by the user: 1. Specifications 2. Adjustment/Cleaning 1.
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CHAPTER 1 GENERAL DESCRIPTION Display Function Description Default settings Turning on or off auto sorting Use it to enable or disable automatic sorting for multiple originals: ON: Enable auto sorting. OFF: Disable auto sorting. ON Changing default binding margin width Use it to set the default width for the binding width between 1 and 20 mm in 1-mm increments.
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CHAPTER 1 GENERAL DESCRIPTION 2. Adjustment/Cleaning Display Function Description Default settings Correcting density Use it to correct the density between -8 and +8 when the copy density at F5 is found to be not appropriate. 0 Making zoom fineadjustment X Use it to make fine adjustments so that the discrepancy, if any, in size between original and copy (in Direct) is removed.
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CHAPTER 1 GENERAL DESCRIPTION V. ROUTINE MAINTENANCE BY THE USER Instruct the user so that the following parts are cleaned at least once a week: 1) Copyboard Glass Wipe it with a cloth moistened with water or solution of mild detergent; then, dry wipe it. 2) Copyboard Cover Wipe it with a cloth moistened with water or solution of mild detergent; then, dry wipe it. 3) Primary Charging Assembly Slide in and out the charging wire cleaner, thereby cleaning the wire.
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CHAPTER 1 GENERAL DESCRIPTION VI. IMAGE FORMATION A. Outline Scanning lamp Zoom lens Pre-exposure lamp Primary corona assembly Drum cleaning assembly Cleaning web Developing assembly Upper fixing roller Copy paper Lower fixing roller Static eliminator Transfer corona assembly Copy paper Figure 1-601 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 1 GENERAL DESCRIPTION The copier’s image formation processes consist of the Step 5 Step 1 Pre-exposure Step 6 Step 2 Primary charging Step 7 Step 3 Image exposure Step 8 Step 4 Development following eight steps: Transfer Separation Fixing Drum cleaning Static latent image formation block 2. Primary charging 3. Image exposure 1. Pre-exposure 4. Development 8. Drum cleaning Manual feed 5. Transfer Delivery 6. Separation Registration Cassette 7.
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CHAPTER 1 GENERAL DESCRIPTION B. Static Latent Image Formation Block The static latent image formation block consists of three steps, at the end of which negative charges are left in the areas of the photosensitive drum corresponding to the black areas of an original while removing negative charges from the areas of the photosensitive drum corresponding to the white areas of the original.
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CHAPTER 1 GENERAL DESCRIPTION D. Primary Charging (step 2) Figure 1-606 The negative corona charging by the primary charging assembly charges the surface of the drum to a uniform negative potential to ensure primary potential. Grid bias is applied to the grid to make sure that the surface of the drum is uniformly charged. E.
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CHAPTER 1 GENERAL DESCRIPTION F. Development (step 4) Toner Blade Cylinder Magnet Developing cylinder Figure 1-608 As shown in Figure 1-608, the developing assembly consists of a developing cylinder made of a fixed magnet and a cylinder that rotates around it and a magnetic blade. The copier’s developer is a single-component developer made of magnetic resins. The developer has insulating characteristics and becomes charged to a positive potential by friction against the rotating cylinder.
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CHAPTER 1 GENERAL DESCRIPTION Positive component 0V Negative component DC bias Figure 1-610 During copying, toner is attracted to the photosensitive drum by the work of the drum surface potential and the developing bias (at time of positive component), turning the static latent image into a visible image. Excess toner is drawn back from the photosensitive drum by the work of the drum surface potential and the developing bias (at time of negative component).
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CHAPTER 1 GENERAL DESCRIPTION H. Separation (step 6) Transfer corona unit Static eliminator Figure 1-612 The copier takes advantage of the rigidity of copy paper to separate it from the drum (curvature separation). However, since thin copy paper has little rigidity, it can wrap around the drum without separating. To prevent such a problem, a positive voltage is applied to the separation static eliminator to weaken the static bonds between drum and copy paper, thereby facilitating separation.
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CHAPTER 1 GENERAL DESCRIPTION I. Fixing (step 7) Cleaning belt Upper fixing roller Main heater Sub heater Copy paper Lower fixing roller Figure 1-613 After transfer, copy paper is moved between two rollers for fixing of the toner image. The copier’s upper roller is heated by two heaters (halogen lamp).
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CHAPTER 1 GENERAL DESCRIPTION VII. AUXILIARY PROCESS A. Blank Exposure Blank exposure is used to eliminate the drum surface potential in the non-image area occurring as a result of the difference, if any, between original and copy or in Reduce mode. The light from the pre-exposure lamp is reflected by the replacing plate so that it is directed to the photosensitive drum after image exposure.
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CHAPTER 2 OPERATIONS AND TIMING This chapter describes the outline of the basic operation, purposes and roles of this copier, the relationship between the electric system and mechanical system and the operational timing of each component. The process speed of this copier is about 180mm/sec and it takes about 0.52sec for one rotation of the drum. I. BASIC OPERATION ...........................2-1 A. Functional Construction.................2-1 B. Outline of the Electrical Circuitry..........................
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CHAPTER 2 OPERATIONS AND TIMING I. BASIC OPERATION A. Functional Construction The copier can roughly be divided into four functional blocks: i.e., pick-up/feeding system, exposure system, image formation system, and control system.
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CHAPTER 2 OPERATIONS AND TIMING B. Outline of the Electrical Circuitry The copier’s major electrical mechanisms are controlled by a CPU (IC116) operating in sync with 16MHz external inputs. Each principal IC on the DC controller PCB has the functions discussed below; Figure 2-102 is a block diagram showing the relationship among major circuits: IC116 (master CPU) • Controlling copying sequence. IC104 (slave CPU) • Controlling the control panel.
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CHAPTER 2 OPERATIONS AND TIMING Sensors/ Switches DC Controller PCB IC116 (Master CPU) AE sensor PCB Motor driver 1 PCB Scanning motor Lens motor Horizontal registration motor Hopper motor Motor driver 2 PCB Delivery motor Lower feeder motor Blank shutter motor Cleaner motor X1 16MHz IC115 (Gate array) IC124 (ROM) Thermistor IC118 IC123 (RAM) Main motor dviver PCB Control panel IC109 (I/O port) Main motor Lifter motor SSR Heaters IC117 (IPC) X103 12MHz Primary
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CHAPTER 2 OPERATIONS AND TIMING C. Basic Sequence 1. Basic Sequence of Operation COPY START key Power switch *1 ON 175 c/347F 190 c/374F ON WMUP WMUPR STBY INTR SCFW SCRV SCFW SCRV LSTR STBY AER Main motor (M1) Fixing main heater (H1) Controlled to 190 c/374F Fixing sub heater (H2) Primary corona bias Transfer corona bias Static eliminator/ fixing roller bias Scanning lamp (LA1) Forward Scanner Reverse *1: Fixing upper roller surface temperature. Figure 2-103 2-4 COPYRIGHT © 1997 CANON INC.
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CHAPTER 2 OPERATIONS AND TIMING Function Period Remarks WMUP (warm-up) From when the power switch is turned on to when the temperature of the fixing roller reaches 175°C/347F. Waits until the fixing roller heats. The lens moves to Direct position. WMUPR (warm-up rotation) From when the temperature of the fixing roller has reached 175°C/347F to when it reaches 190°C/374F (5 sec max.). Evens out the temperature of the fixing roller.
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CHAPTER 2 OPERATIONS AND TIMING D. Controlling the Main Motor 1. Outline The copier’s main motor (M1) is a DC motor with a built-in clock pulse generator. Figure 2-104 is a block diagram showing the circuit used to control the main motor, and the circuit has the following functions: q Turning on and off the main motor. w Controlling the speed of the main motor. e Checking the rotation of the main motor for an error. 2.
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CHAPTER 2 OPERATIONS AND TIMING FrequencyVoltage converter J502 J107 DC -3 controller PCB -4 -5 MMD -3 MMLOCK -2 MMCLK ±5V DC Power Supply PCB W -1 Rotor -1 -5 -2 -4 J501 J634 U V Phase control circuit -1 ±24VB -1 -2 GND -2 Hall IC Drive circuit Reference signal Main motor driver PCB Figure 2-104 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 2 OPERATIONS AND TIMING E. Inputs to the DC Controller 1.
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CHAPTER 2 OPERATIONS AND TIMING 2.
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CHAPTER 2 OPERATIONS AND TIMING 3. Input to the DC Controller (3/5) DC controller PCB Lens home position sensor PS19 J82 -1 -2 -3 Motor driver 1 PCB J79 J204 ±5V -3 -11 -3 J203 J107 -12 -2 -10 -1 -2 LHP -13 -1 -1 when lens is at home position,'1'. (light-blocking plate is at PS19) Motor driver 2 PCB Blank shutter home position sensor PS20 J27 -1 -2 -3 -9 -8 -7 J953 ±5V J24 -1 -11 J951 J114 when PS20 detects blank shutter, '1'.
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CHAPTER 2 OPERATIONS AND TIMING 4.
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CHAPTER 2 OPERATIONS AND TIMING 5. Input to the DC Controller (5/5) DC controller PCB Cassett 1 paper width detection VR Cassett 2 paper width detection VR Multifeeder paper width detection VR SVR1 SVR2 SVR3 J722 -3 -1 -2 -2 -1 -3 J104 ±5V -11A -10A C1PW -9A J721 -1 -3 -2 -2 -1 -3 -14A -13A C2PW -12A detects paper width with reference to side guide in cassette 1.
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CHAPTER 2 OPERATIONS AND TIMING F. Outputs from the DC Controller 1. Output from the DC Controller (1/5) Door switch DSW1 Power switch SW1 ON DC controller PCB CB1 OFF NF1 J117 ±24V -1A -2A when '0', power PWOFF* switch goes OFF. H3 Drum heater J112 -8B TSW1 Fixing main heater H1 -7B Fixing sub heater H2 MHRD when '1', main heater goes ON. SHRD when '1', sub heater goes ON. -5B -9B -6B MSSRD SSSRD when heater goes ON, '1'. SSR Scanning lamp LA1 Lamp regulator See p.
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CHAPTER 2 OPERATIONS AND TIMING 2. Output from the DC Controller (2/5) DC controller PCB Main motor J106 ±5V -1 -3 MMD -4 MMLOCK -5 MMCLK -2 J502-5 -3 M1 -2 -1 -4 Main motor J501-1 driver PCB -2 See p. 2-6 ±24VB To DC power supply PCB Scanning motor M2 See p. 3-7 Lens motor M3 See p. 3-4 Hopper motor M4 See p.
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CHAPTER 2 OPERATIONS AND TIMING 3. Output from the DC Controller (3/5) DC controller PCB J58 Cassette 1 lifter motor Cassette 2 lifter motor Scanner cooling fan Exhaust fan 1 M9 -1 -2 M10 J59 -2 -1 -2 -1 FM1 J76 -2 -1 -1 -2 FM2 J88 -2 -1 -2 -1 J117 -6A -2 -1 -7A C1LTD* -8A C2LTD * -9A J102 ±24VB -3A -4A SCFD * J95 -4 -3 -4 -3 when '1', M9 rotates. (lifter up) when '1', M10 rotates. (lifter up) when '0', FM1 goes ON.
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CHAPTER 2 OPERATIONS AND TIMING 4.
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CHAPTER 2 OPERATIONS AND TIMING 5. Output from the DC Controller (5/5) DC controller PCB J53 Horizontal registration solenoid -2 -1 SL7 J93 -2 -1 Pre-exposure lamp -1 -2 -1 -2 J91 -4 -3 J117 ±24VB -11B -10B HRSD* J113 ±24VB -3A -4A PEXP * LA2 Total copy counter CNT1 -1 J64 Copy counter (option) CNT2 -1 -2 J63 -1 -1 -2 -2 when '0', pre-exposure lamp goes ON. ±24VB J61 -2 when '0', SL7 goes ON. -2 -1 J65 -2 -1 -4 -3 -5 -9B -10B CNTD * when '0', CNT1 goes ON.
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CHAPTER 2 OPERATIONS AND TIMING G. Inputs to and Outputs from the Accessories (1/1) DC controller PCB -3 -1 -2 -4 J730 -4 -1 -2 -3 -2 -3 -1 -4 -10 -12 -9 -11 J731 -1 0V -2 0V -3 ±24VB -4 ±24VB -1 -3 -2 -4 -1 -3 -2 -4 -10 -12 -9 -11 -1 -2 -3 -4 -8 -4 -10 -1 -3 -2 -3 -1 -2 -7 -5 -6 -11 -12 -1 -2 J732 J104 -1B D-TXD -3B D-RXD -2B -4B Refer to the DF Service Manual.
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CHAPTER 3 EXPOSURE SYSTEM This chapter describes the outline of the purposes, roles and operations of the lens driving, optical system and original detection of this copier, the relationship between the electric system and mechanical system and the operational timing of each component. I. II. III. BASIC OPERATION...........................3-1 A. Varying the Reproduction Ratio.....3-1 LENS DRIVE SYSTEM ......................3-2 A. Movement of the Lens...................3-2 SCANNER DRIVE MECHANISM .......
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CHAPTER 3 EXPOSURE SYSTEM I. BASIC OPERATION A. Varying the Reproduction Ratio The ratio in the axial direction of the photosensitive drum is varied by the lens drive system, and the ratio in the peripheral direction of the photosensitive drum is varied by the scanner drive system. The lens drive system uses a zoom lens, and it varies the reproduction ratio in the axial direction of the photosensitive drum by changing the lens position and the focal distance. The scanner drive system moves the No.
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CHAPTER 3 EXPOSURE SYSTEM II. LENS DRIVE SYSTEM A. Movement of the Lens 1. Outline The lens assembly is driven by the lens motor (M3). The machine uses center reference, in which copy paper is centered along the feeding path for pick-up and feeding. Figure 3-201 shows the spatial relationship between copy paper and original. When the power switch is turned on, the lens motor (M3) starts to rotate, moving the lens in the direction of the lens home position sensor (PS19).
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CHAPTER 3 EXPOSURE SYSTEM Lens Cam plate Lens motor (M3) Lens home position signal (LHP) Lens motor drive command Cam groove Signal plate Lens home position sensor (PS19) Motor driver 1 PCB :Enlargement :Reduction DC controller PCB Figure 3-202 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 2. Lens Motor Drive Circuit Figure 3-203 shows the circuit used to control the lens motor (M3). The lens motor is a 2-phase stepping motor, and is controlled by the lens motor drive pulse command (LEA, LEB) and the lens motor hold command (LEHLD) generated by the DC controller. The direction of its rotation, on the other hand, is controlled by changing the output timing of the LEA command and the LEB command.
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CHAPTER 3 EXPOSURE SYSTEM 3. Focusing The copier’s zoom lens unit consists of multiple lenses. The zoom lens focuses on images with the help of the cam plate mount inside the zoom lens unit. The cam plate moves along the cam groove in the lens stage and focuses on images by varying the distance between multiple lenses.
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CHAPTER 3 EXPOSURE SYSTEM III. SCANNER DRIVE MECHANISM A. Driving the Scanner 1. Outline The scanner is driven by the scanning motor (M2). The scanning motor changes its direction of rotation to move the scanner forward and in reverse. The speed of rotation when moving the scanner forward varies continuously according to the selected reproduction ratio; however, the speed of rotation when moving the scanner in reverse remains a specific value (about 2.
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CHAPTER 3 EXPOSURE SYSTEM 2. Scanning Motor Control Circuit The scanning motor (M2) is a 4-phase control stepping motor. Figure 3-302 is a block diagram of the circuit used to control the scanning motor, and the circuit has the following functions: q Turning on and off the motor. w Controlling the rotation of the motor. e Controlling the speed of the motor. r Stabilizing the motor.
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CHAPTER 3 EXPOSURE SYSTEM a. Turning On and Off the Motor The motor is turned on and off by the scanning motor drive command (SCMD*). When the SCMD* command goes ‘1’, the drive pulse command (SCA, SCA*, SCB, SCB*) goes off so that the motor will not rotate. When the SCMD* command goes ‘0’, the drive pulse command (SCA, SCA*, SCB, SCB*) goes on to rotate the motor. b.
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CHAPTER 3 EXPOSURE SYSTEM e. Output Timing of Motor Control Signals The scanning motor (M2) is controlled so that the step angle occurring when it rotates is small by incrementally increasing the current of the drive pulse command (SCA, SCA*, SCB, SCB*) generated by the motor driver 1 PCB (high speed response, low amplitude drive, low noise drive). Figure 3-303 shows the relationship between the size (current) of the drive pulse signal and the timing.
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CHAPTER 3 EXPOSURE SYSTEM 3. Relationship between Scanner Sensor and Signals Scanner sensor Signal Scanner home position SCHP Scanner Forward Reverse Remarks • Registration clutch ON • In 0.1 sec, scanner reverse OFF Table 3-301 4.
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CHAPTER 3 EXPOSURE SYSTEM 5.
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CHAPTER 3 EXPOSURE SYSTEM Reference: The distance over which the scanner moves (maximum) from the leading edge of an original (10mm/0.4” forward from the falling edge of PS1) is 432mm/17”; further, the distance is limited in relation to the selected reproduction ratio. In the case of 200% enlargement, the scanner may move up to 216mm/8.5”. Reference: If more than two modes are selected, the scanner is controlled based on the smallest original size identified.
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CHAPTER 3 EXPOSURE SYSTEM IV. OTHERS A. Controlling the Detection of Original Sizes 1. Outline The copier is provided with auto paper selection, auto ratio selection, and image composition functions, all requiring identification of the size of originals.
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CHAPTER 3 EXPOSURE SYSTEM Copyboard cover open/closed sensor PS17 PS23 PS24 B5R A4R PS21 A4 SIZE3 SIZE2 A3 SIZE0 LED SIZE1 PS22 Photointerrupter B4 B5 DC controller PCB AB - configuration Figure 3-401 Copyboard cover open/closed sensor PS17 PS24 PS23 LTRR PS21 LGL 11"~17" SIZE3 SIZE2 SIZE0 LTR DC controller PCB Inch - configuration Figure 3-402 3-14 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 2. Operation When the copyboard cover is brought down to about 30°, the copyboard cover open/closed sensor (PS17) turns ON, i.e., the light-blocking plate blocks PS17. After PS17 has turned ON, the output level of each size sensor is read for 15 sec or until the Copy Start key is pressed at intervals of about 0.1 sec.
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CHAPTER 3 EXPOSURE SYSTEM 3. Identifying the Size of Originals Based on combinations of the states of the original size sensors, the DC controller circuit identifies the size of each original as shown in Table 3-401 and Table 3-402. • OFF The output of the sensor when the copyboard cover is brought down to 15° through 30° and the output 15 sec thereafter are the same (detecting an original).
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CHAPTER 3 EXPOSURE SYSTEM 4. Identifying the Size of Originals by the Document Feeder a. Outline The document feeder (accessory) identifies the size of an original in response to commands from the copier as follows: q If the installed cassette is AB-configured, the copier instructs the document feeder to check for AB-configured originals. w If the installed cassette is Inch-configured, the copier instructs the document feeder to check for Inch-configured originals.
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CHAPTER 3 EXPOSURE SYSTEM EX. A4 original, Enlarge, LTR Copy LTR Output image A4 original Figure 3-405 s • The original will be identified as LTR. Since enlargement will be with reference to the triangle in Figure 3-405 ( ), the shaded area will be missing. EX. LTR Original, Enlarge, A4 Copy Margin LTR original Output image A4 Figure 3-406 • s The original will be identified as A4.
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CHAPTER 3 EXPOSURE SYSTEM V. DISASSEMBLY AND ASSEMBLY This section explains mechanical characteristics and describes how to disassemble/assemble the copier. Be sure to observe the following whenever disassembling/assembling the copier: 1. Disconnect the power plug before starting the work. 2. Unless otherwise shown, assemble the parts by reversing the steps given to disassemble them. 3. Identify each screw by type (length, diameter) and location. 4.
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CHAPTER 3 EXPOSURE SYSTEM 3) Remove the four screws e, and remove the scanner motor r. r e e Figure 3-502 2. Outline of the Scanner Drive Cable Figure 3-503 3-20 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 3. Removing the Scanner Drive Cable 1) Remove the copyboard cover, right cover, left cover, upper rear cover, and rear cover. 2) Remove the copyboard glass. 3) Remove the control panel. (See p. 7-14.) 4) Remove the two screws q, and remove the power switch mount w. q Figure 3-504 q w Figure 3-505 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 5) Remove the screw e, and remove the pulley cover r. e r Figure 3-506 6) Remove the four screws t, and remove the upper left stay y. y t t Figure 3-507 7) Remove the scanner cooling fan. (See p. 7-15.) 8) Remove the four screws u, and remove the front glass support i. u i u u Figure 3-508 3-22 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 9) Disconnect the connector o, and remove the two screws !0; then, remove the copyboard support !1. !0 o !1 !0 Figure 3-509 10) Remove the three screws !2, and remove the rear glass support !3. !2 !3 !2 Figure 3-510 !3 !2 Figure 3-511 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 11) Mark the position of the pulley plate !4 with a scriber on the side plate (both front and rear). !4 !4 (front) (rear) Figure 3-512 12) Move the No. 1 mirror mount in the forward direction, and match the long angle in the side plate and the cable fixing screw !5. Then, remove the cable fixing screw !5 (front: 2, rear: 4), and separate the No. 1 mirror mount and the scanner cable (both front and rear).
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CHAPTER 3 EXPOSURE SYSTEM 13) Loosen the pulley plate fixing screw !6; then, loosen the tension screw !7, and loosen the cable wire (both front and rear) 14) Remove the scanner cable !8 (both front and rear). !6 !8 !7 (front) Figure 3-515 !8 !6 !7 !6 (rear) Figure 3-516 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 4. Routing the Scanner Cable Note: You will need a mirror positioning tool (FY9-3002-000) to route the scanning cable. Figure 3-517 The tool is used in common with other models. To use, loosen the screws, extend the two arms (both front and rear) fully, and tighten the screws. 1) Move the No. 2 mirror mount so that the No. 2 mirror mount pulley shaft q is in view through the long hole in the side plate. q Figure 3-518 3-26 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 2) Fit the binding screw w (M4) in the screw hole of the pulley shaft, and fix the No. 2 mirror mount in place on the side plate. w Figure 3-519 3) Engage the scanner cable on the pulley and the hook as shown in the figure. q y e w Put the steel ball into the hole of the pulley. r Wind it eight times. o =0~ 3mm u t Fix temporarily. i Figure 3-520 4) Remove the screw fitted in step 2). COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 5) Install the mirror positioning tool e between the No. 1 mirror mount and No. 2 mirror mount (both font and rear); then, put the tool pin r through the mirror positioning tool and the lens mount rail. e r Figure 3-521 e r Figure 3-522 3-28 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 6) Install the scanner cable plate to the No. 1 mirror mount with the cable fixing screw t (front: 2, rear: 4) through the long hole in the side plate (both front and rear). t t (rear) Figure 3-523 t Figure 3-524 Note: If you cannot remove the tool pin smoothly after the work, check the gap between the No. 2 mirror and the mirror positioning tool; then, tighten the screw on the No. 1 mirror mount as necessary once again. COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM B. Lens Drive Assembly 1. Removing the Lens Motor 1) Remove the copyboard glass. 2) Move the No. 1 mirror mount to the right end of the scanner rail. Note: When moving the No. 1 mirror mount, be sure to hold the middle of the mirror mount. 3) Remove the two screws q, and disconnect the connector w; then, remove the lens motor assembly e. q w e Figure 3-525 4) Remove the two screws r, and disconnect the connector t; then, remove the lens motor y.
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CHAPTER 3 EXPOSURE SYSTEM 2. Attaching the Lens Drive Belt Move the lens motor support q and fit it in place so that the reading of the spring gauge is 1000 ± 50g when motor support q is pulled with a spring gauge in the direction of the arrow at the point A indicated in Figure 3-527. q A Figure 3-527 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 3 EXPOSURE SYSTEM 3. Removing the Lens hood 1) Remove the three screws q, and disconnect the two connectors w; then, remove the lens hood e. q w q Figure 3-528 e q Figure 3-529 3-32 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM This chapter describes the outline of the purposes, roles and operations of image formation process, the relationship between electric system and mechanical system and the operational timing of each component. I. PROCESSES .....................................4-1 A. Outline ...........................................4-1 B. Basic Sequence of Operations (image formation) ..........................4-2 C. Controlling the Scanner Lamp.......4-3 D.
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CHAPTER 4 IMAGE FORMATION SYSTEM I. PROCESSES A. Outline • • • • • The copier’s image formation system basically deals with the following: Controlling the scanning lamp. Controlling the primary/transfer corona current and the grid bias. Controlling the static eliminator/fixing roller bias. Controlling the developing bias. Controlling the blank exposure lamp.
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CHAPTER 4 IMAGE FORMATION SYSTEM B. Basic Sequence of Operations (image formation) Power switch ON COPY START key ON WMUP WMUPR STBY INTR SCFW SCRV SCFW SCRV LSTR STBY AER Main motor (M1) Scanning lamp (LA1) Primary/Transfer corona bias Grid bias Static eliminator/ fixing roller bias Developing bias DC component Developing bias AC component *1 *1: Developing bias DC component output corresponding to back bias. Figure 4-102 4-2 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM C. Controlling the Scanner Lamp 1. Outline Figure 4-103 shows the circuit used to control the intensity of the scanning lamp, and the circuit has the following functions: q Turning on and off the scanning lamp. w Detecting the activation of the scanning lamp.
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CHAPTER 4 IMAGE FORMATION SYSTEM 2. Turning On and Off the Scanning Lamp The microprocessor on the DC controller PCB turns on the transistor (Q147) to send the lamp ON command (LMPON) to the lamp regulator. When the DC controller generates the light intensity signal (LINT), voltage of about 135 to 140 V (220 / 240 V) / 80 to 95 V (120 V) is supplied to the lamp, thereby turning on the scanning lamp.
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CHAPTER 4 IMAGE FORMATION SYSTEM D. Controlling the Primary/Transfer Corona Current and the Grid Bias 1. Outline Figure 4-104 shows the circuit used to control the primary/transfer corona current and the grid bias of the primary charging assembly, and the circuit has the following functions: q Turning on and off the primary/transfer corona current. w Keeping the primary/transfer corona current to a specific level. e Turning on and off the grid bias.
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CHAPTER 4 IMAGE FORMATION SYSTEM 2. Controlling the Primary/Transfer Corona Current The primary/transfer corona current ON signal (PTON) from the DC controller is used to turn on and off the primary/transfer corona current output. • When the primary/transfer corona current output is on, PTON*=0 →The remote circuit turns on. →The AC drive circuit turns on. →The primary high-voltage transformer turns on. (primary charging corona current output) →The transfer high-voltage transformer turns on.
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CHAPTER 4 IMAGE FORMATION SYSTEM 3. Keeping the Primary/Transfer Corona Current at a Specific Level If an excess (or inadequate) corona current flows from the primary charging assembly or the transfer charging assembly because of changes in the environment, the level of the return current to the current control circuit will be higher (lower).
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CHAPTER 4 IMAGE FORMATION SYSTEM 4. Turning On and Off the Grid Bias A voltage is applied to the grid wire while the primary corona current is being generated to ensure even placement of charges on the drum. The grid bias is controlled by the grid potential control command (GRCONT) generated by the DC controller: a grid bias of about -800 V is applied when the DC controller generates the GRCONT command (analog, about 5 V).
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CHAPTER 4 IMAGE FORMATION SYSTEM E. Controlling the Static Eliminator Bias/Fixing Roller Bias 1. Outline Figure 4-107 shows the circuit used to control the static eliminator bias and the fixing roller bias, and the circuit has the following functions : q Turning on and off the static eliminator bias / fixing bias. w Switching the output of the static eliminator bias.
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CHAPTER 4 IMAGE FORMATION SYSTEM 2. Turning ON/OFF the Static Eliminator Bias/Fixing Bias The DC controller generates the static eliminator/fixing roller bias ON command (SFON*) to turn on and off the static eliminator bias and the fixing roller bias. • When the static eliminator bias/fixing roller bias is on, SFON*=0 →The remote circuit turns on. →The AC drive circuit turns on. →The high-voltage transformer turns on.
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CHAPTER 4 IMAGE FORMATION SYSTEM F. Controlling the Developing Bias 1. Outline Figure 4-108 shows the circuit used to control the developing bias, and the circuit has the following functions: q Turning on and off the DC component of the developing bias. w Controlling the voltage level of the DC component of the developing bias. e Turning on and off the AC component of the developing bias.
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CHAPTER 4 IMAGE FORMATION SYSTEM 2. Turning On and Off DC Component of the Developing Bias and Controlling the Voltage Level The developing DC bias ON command (DPON*) generated by the DC controller is used to turn on and off the DC component of the developing bias. The level of the voltage is controlled by the DC bias control command (DCBC). • When the DC component of the developing bias is on, DPON*=0 →The remote circuit turns on. →The amplifier circuit turns on. →The DC drive circuit turns on.
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CHAPTER 4 IMAGE FORMATION SYSTEM 3. Turning On and Off the AC Component of the Developing Bias The DC component of the developing bias is turned on and off by the developing AC bias ON command (ACON*) generated by the DC controller. • When the AC component of the developing bas is on, ACON*=0 →The remote circuit turns on. →The AC drive circuit turns on. →The AC high-voltage transformer turns on. (developing AC bias output) When the AC high-voltage transformer is on, a voltage of 1300 Vp-p is applied.
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CHAPTER 4 IMAGE FORMATION SYSTEM G. Controlling Blank Exposure 1. Outline The copier executes blank exposure by shining the light of the pre-exposure lamp against the size blanking reflecting plate and the full blanking reflecting plate. The area of blanking exposure is controlled by one opening/closing shutter and slide shutter.
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CHAPTER 4 IMAGE FORMATION SYSTEM 2. Operation • Opening/Closing Shutter The opening/closing shutter is located in the optical path for full blanking, and is opened/closed by a blank shutter solenoid (SL5). A margin is created by opening the opening/closing shutter operated by SL5 in relation to the leading and trailing edges of copy paper. • Slide Shutter The two slide shutters are located in the optical path for size blanking, and are positioned by the blank shutter motor (M8).
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CHAPTER 4 IMAGE FORMATION SYSTEM H. Mesuring the Density of Originals 120mm/4.7" (approx.) 1. Outline The copier is equipped with an automatic density adjustment (AE) function used to control the DC component of the developing bias according to the density of originals. The AE function changes the DC component of the developing bias so as to ensure copies free of fogging as long as the original is more or less even in density.
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CHAPTER 4 IMAGE FORMATION SYSTEM 2. Operation During initial rotation (INTR), the scanner is moved forward by about 70 mm / 2.8”, and the scanning lamp (LA1) is tuned on at a specific intensity to illuminate the original. Then, the density of the original is read by the AE sensor, and its output is sent to the DC controller. Based on the output of the AE sensor, the DC controller controls the DC component of the developing bias.
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CHAPTER 4 IMAGE FORMATION SYSTEM 3. AE Adjustment The copier provides the following three types of AE adjustment (service mode): • Auto adjustment (No. 402) • Scaning lamp ON voltage adjustment during AE exposure (No. 304) • Development DC bias adjustment for newspaper originals in AE mode (No. 303) Item Function Description 402 AE scanning intensity automatic adjustment Remarks Automatic adjustment occurs so that the original is copied at copy density 5 when ‘402’ is executed.
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CHAPTER 4 IMAGE FORMATION SYSTEM I. Cleaning the Transfer Charging Wire 1. Outline The machine is equipped with an automatic cleaning mechanism for the transfer charging wire which turns on under the following conditions: q At power-on, if the fixing temperature is 100°C or less. w Last rotation at each cumulative count of 500. e When charging wire cleaning (U25) is executed in user mode. 2. Operation The charging wire is cleaned by moving the wire cleaner back and forth by the cleaner motor (M11).
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CHAPTER 4 IMAGE FORMATION SYSTEM Wire cleaner mount Wire cleaner Tranfer corona unit Cleaner motor (M11) Wire cleaner rear position switch(MSW2) Wi re cle an er rea rp os itio ns ign al Wire cleaner Wi home position switch(MSW1) sig re cl e na l (W aner CH hom P) ep os itio n (W CR P) J109 J951 -13 J953 CLB -1 CLA -2 CLCCW J114 -2A Motor driver 2 PCB -14 CLCW -1A -8A -10A DC controller PCB Figure 4-115 4-20 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM II. DEVELOPING ASSEMBLY/DRUM CLEANER A. Outline The copier is designed in such a way so that its developing assembly is manually locked/released together with its rail when a locking lever is operated. The developing cylinder, the toner stirring roller inside the developing assembly, and the blade inside the drum cleaner are rotated by the drive of the main motor (M1). The level of toner remaining inside the developing assembly is monitored by a toner sensor (TS1).
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CHAPTER 4 IMAGE FORMATION SYSTEM Hopper motor Hopper assembly M4 Screw Cleaning blade TS Blade Toner sensor Torque limiter Main motor / main motor driver PCB M1 toner empty signal (TEP*) Stirring rods Release Cam hopper motor drive command (HMD*) Drum cleaning assembly Developing cylinder Lock Photosensitive drum DC controller PCB Figure 4-201 4-22 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM B. Detecting the Level of Toner and Controlling the Supply The level of toner inside the developing assembly is monitored by the toner sensor (TS1) of a piezoelectric oscillator type which generates the toner absent signal (TEP*=0) when the level drops below a specific value. The DC controller turns on the hopper motor (M4) to start toner supply when it has detected TEP*=0 for 1 sec or more continuously.
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CHAPTER 4 IMAGE FORMATION SYSTEM C. Stopping the Hopper Motor in Response to a Rotation Error If an excess load is imposed on the hopper motor (M4) and, as a result, variation occurs in its rotation, the level of current entering the comparator circuit lowers and the comparator circuit generates a negative voltage, causing the transistors Tr1 and Tr2 to turn off and stopping the hopper motor.
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CHAPTER 4 IMAGE FORMATION SYSTEM III. DISASSEMBLY AND ASSEMBLY This section explains mechanical characteristics and describes how to disassemble/assemble the copier. Be sure to observe the following whenever disassembling/assembling the copier. 1. Disconnect the power plug before starting the work. 2. Unless otherwise shown, assemble the parts by reversing the steps given to disassemble them. 3. Identify each screw by type (length, diameter) and location. 4.
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CHAPTER 4 IMAGE FORMATION SYSTEM 4) Turn the flat-blade screwdriver in the direction of arrow e to open the electrode plate in the direction of arrow r, and remove the scanning lamp t. r e t Figure 4-302 Note: 1. If the scanning lamp is hot, wait until it has cooled. 2. Do not leave fingerprints on the scanning lamp. 3. If the surface of the scanning lamp is soiled, dry wipe it. 2.
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CHAPTER 4 IMAGE FORMATION SYSTEM 3. Removing the Thermal Fuse 1) Remove the copyboard glass. 2) Remove the screw q, and remove the attraction plate w. q w Figure 4-304 3) By pushing the middle of the No. 1 mirror mount e, move the mirror mount until it is as indicated. e Figure 4-305 Note: Whenever you must move the No. 1 mirror mount by hand, be sure to hold its middle. Further, do not touch the surface of the lamp and the reflecting cover. COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 4) Remove the two screws r, and remove the thermal fuse t. r t Figure 4-306 B. Blank Exposure Lamp Assembly 1. 1) 2) 3) 4) Removing the Blank Exposure Lamp Assembly Remove the inside left cover. Remove the developing assembly and drum unit. Disconnect the two connectors q. Remove the three screws w, and remove the harness retainer e. e w q Figure 4-307 4-28 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 5) Remove the two screws r. r Figure 4-308 6) Pull out the blank exposure lamp assembly t slowly to the front. t Figure 4-309 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 2. Removing the Blank Exposure Lamp 1) Remove the blank exposure lamp assembly. 2) Remove the two screws q, and the connector w; then, turn over the blank exposure upper plate e. q e q w Figure 4-310 3) Disconnect the two connectors r, and remove the blank exposure assembly upper plate t. r r t Figure 4-311 4) Remove the three screws y, and remove the blank exposure lamp u. u y y y Figure 4-312 4-30 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 3. Removing the Blank Shutter Solenoid 1) Remove the blank exposure lamp assembly. 2) Remove the blank exposure assembly upper plate. (See 2. “Removing the Blank Exposure Lamp.”) 3) Remove the screw q and the spring w; then, detach the link arm e from the blank shutter. q w e Figure 4-313 4) Remove the two screws r, and disconnect the connector t; then, remove the blank shutter solenoid y by lifting it. t r y Figure 4-314 COPYRIGHT © 1997 CANON INC.
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CHAPTER 4 IMAGE FORMATION SYSTEM 4. Adjusting the Position of the Blank Shutter Solenoid Adjust the position of the solenoid so that section A in the figure is 7.7 ±0.5 mm on both sides when its plunger is moved in the direction of activation. (When taking measurements, take care not to force the shutter with slide calipers.) After making adjustments, check to make sure that the plunger of the solenoid moves smoothly. A Figure 4-315 Figure 4-316 4-32 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 5. Removing the Blank Shutter Motor 1) Remove the blank exposure lamp assembly. 2) Remove the blank exposure assembly upper plate. (See 2. “Removing the Blank Exposure Lamp.”) 3) Remove the two screws q, and disconnect the connector w; then, remove the blank shutter motor e by moving it in the direction of the arrow. q w e q Figure 4-317 6. Routing the Blank Shutter Cable Slide shutter Windtwice Windtwice Figure 4-318 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM C. Drum Unit 1. Removing the Drum Unit 1) Open the front door. 2) Remove the connector cover q. q Figure 4-319 3) Turn the developing assembly releasing lever w counterclockwise to unlock the developing assembly. w Figure 4-320 4-34 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 4) Open the hopper, and release the feeding assembly. 5) Remove the mounting screw e, and slide out the drum unit r slowly to the front. e r Figure 4-321 Note: Take care not to damage the photosensitive drum. Note: The photosensitive drum is very susceptible to light, and exposure to even room lighting can cause copies with white spots or black bands.
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CHAPTER 4 IMAGE FORMATION SYSTEM D. Charging Assembly 1. Removing the Primary Charging Assembly 1) Remove the drum unit. Note: Take care not to expose the drum unit to light after taking it out of the copier. Exposure to light for some time will cause copies with white spots or black bands. 2) Disengage the hook q, and remove the primary charging assembly w by pulling it to the front from the drum unit. q Figure 4-322 w Figure 4-323 4-36 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 2. Removing the Transfer Charging Assembly 1) Remove the screw q, and remove the transfer charging assembly cover w; then, remove the transfer charging assembly e by pulling it to the front. q w e Figure 4-324 3. a. 1) 2) Stringing the Primary/Transfer Charging Wire Primary Charging Assembly Remove the primary charging assembly. Remove the four tension springs q (2 at front, 2 at rear), and remove the grid plate w. 3) Remove the lid e (both front and rear).
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CHAPTER 4 IMAGE FORMATION SYSTEM b. Transfer Charging Assembly 1) Remove the transfer charging assembly. 2) Pull out the static eliminator q. q Figure 4-326 3) Disengage the three hooks w, and remove the guide wire retainer e from the charging assembly. w Figure 4-327 e Figure 4-328 4-38 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 4) Remove the lid r (both front and rear). r r Figure 4-329 5) Free a length of about 40 mm of charging wire from the reel (0.06-mm dia.), and form a loop with a diameter of about 2 mm at the end. Reference: To form a loop, wind the charging wire around a hex key once, and twist the hex key four to five times; then, twist the charging wire. 6) Cut the twisted end of the charging wire (excess) to 1 mm or less with a nipper.
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CHAPTER 4 IMAGE FORMATION SYSTEM 7) Install the charging wire as shown in the figure. 7mm spring ring height adjusting block Primary charging wire Figure 4-331 2mm spring ring height adjusting block Transfer charging wire Figure 4-332 Note: Keep the following in mind: • Make sure that the charging wire is free of bends or twists and its gold-plating has not peeled. • Make sure that the charging wire is free of slack. • Make sure that the charging wire is in the V-groove of the height-adjusting roll.
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CHAPTER 4 IMAGE FORMATION SYSTEM 4. Stringing the Guide Wire The guide wire is 0.148 mm in diameter. A 3 2 1 5 4 6 7 8 9 12 10 11 13 B Figure 4-333 5. Adjusting the Height of the Charging Wire The height of the charging wire may be adjusted by turning the screw located behind the charging assembly. A full single turn of the screw raises or lowers the charging wire by about 0.7 mm. Corona Unit Primary Transfer Height of Standard Position A B A=10.6 ±0.3 mm B=9.5 ±0.
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CHAPTER 4 IMAGE FORMATION SYSTEM E. Developing system 1. Removing the Developing Assembly 1) Open the copier front cover. 2) Remove the connector cover q. q Figure 4-335 3) Remove the connector w. 4) Turn the developing assembly releasing lever e counterclockwise to unlock. 5) Pull out the developing assembly r slowly to the front. r e w Figure 4-336 4-42 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 2. Removing the Blade 1) Remove the developing assembly from the copier. 2) Remove the two screws q, and remove the developing assembly cover w. q q w Figure 4-337 3) Place a newspaper on the floor or a desk, and pour out the toner from the developing assembly. 4) Remove the two screws e, and remove the blade r together with the mount. e r e Figure 4-338 Note: The blade must be mounted with high accuracy. Do not remove it on its own in the field.
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CHAPTER 4 IMAGE FORMATION SYSTEM 3. Removing the Magnetic Seal (developing cylinder) 1) Remove the developing assembly from the copier. 2) Remove the blade Note: The blade must be mounted with high accuracy. Do not remove it on its own in the field. Rather, remove it together with its mount. 3) Remove the screw q, and remove the fromt cover w. q w Figure 4-339 4) Remove the screw e, and remove the electrode positioning plate r. e r Figure 4-340 4-44 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 5) Remove the C-ring and the two screws; then, remove the butting roll t and the roll case y. t y Figure 4-341 6) Remove the two screws u, and remove the gear mount i. i u u Figure 4-342 7) Remove the two E-rings, and remove the gear o and the gear !0. Remove the two screws, and remove the butting roll !1 and the roll case !2. !0 !2 !1 o Figure 4-343 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 8) Remove the developing cylinder !3. !3 Figure 4-344 9) Remove the magnetic seal !4 (both ends). !4 Figure 4-345 !4 Figure 4-346 4-46 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 4 IMAGE FORMATION SYSTEM 4. Installing the Magnetic Seal and the Blade 1) Clean the contact face on the magnetic seal with alcohol. 2) Attach the magnetic seal as shown. (Pay attention; the magnetic seal is different in shape between front and rear.) Check to make sure that the magnetic seal and the case are in contact. w q q (rear) w (front) Magnetic seal Opening (butting reference) Figure 4-347 3) Install all parts except the blade and the developing assembly cover.
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CHAPTER 4 IMAGE FORMATION SYSTEM 4) While butting the blade mount against the developing assembly, fix it in place with two screws. When installing the blade, place paper q on the developing cylinder first to protect the cylinder. (Tighten the screw while pushing on section A.) A A q Figure 4-348 Reference: S-B is adjusted to 230 ±30 µm. 5. Installing the Electrode Positioning Plate Install the electrode positioning plate while orienting it as shown in Figure 4-349.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM This chapter describes the outline of the purposes, roles and operations of this copier from feeding and delivering copy papar, the relationship between electric system and mechanical system and the operational timing of each component. I. II. III. IV. PICK-UP/FEEDING SYSTEM ............5-1 A. Outline ...........................................5-1 PICK-UP FROM THE CASSETTE .....5-3 A. Pick-Up Operation .........................5-3 B. Movement of the Cassette Lifter ...
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CHAPTER 5 PICK-UP/FEEDING SYSTEM I. PICK-UP/FEEDING SYSTEM A. Outline The copier uses center reference, in which copy paper is fed centered along the path of the pick-up/feeding assembly, and its sources of copy paper include two cassettes (top, bottom) and a multifeeder.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM No. Name PS7 Vertical path roller 1 paper sensor PS8 Vertical path roller 2 paper sensor PS9 Pre-registration paper sensor PS10 Separation sensor PS11 Delivery sensor PS12 Lower feeder inlet paper sensor PS13 Lower feeder outlet paper sensor PS14 Horizontal registration paper sensor Table 5-101 5-2 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM II. PICK-UP FROM THE CASSETTE A. Pick-Up Operation 1. Outline The copy paper inside the cassette is held up by a lifter so that it remains in contact with the pick-up roller. When the pick-up clutch (CL2 or CL3) turns on, the pick-up roller starts to rotate to feed copy paper. Then, the pick-up roller releasing solenoid (SL1 or SL2) turns on so that the pick-up roller leaves the copy paper.
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5-4 Vertical path roller 2 clutch drive command (VR2CD*) Cassette 2 pick-up clutch drive command (C2PUCD*) Cassette 2 pick-up release solenoid drive command (C2RSD*) Main motor M1 Registration clutch drive command(RGCD*) Vertical path roller 1 drive command (VR1CD*) Cassette 1 pick-up clutch drive command (C1PUCD*) Cassette 1 pick-up release solenoid drive command (C1RSD*) CHAPTER 5 PICK-UP/FEEDING SYSTEM DC controller PCB COPYRIGHT © 1997 CANON INC.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 2. Sequence of Pick-Up Operations a. Cassette 1, A4, 2 Copies, Continuous COPY START key ON INTR SCFW SCRV Forward Reverse SCFW SCRV LSTR STBY Main motor (M1) Cassette 1 pick-up clutch (CL2) Cassette 1 pick-up release solenoid (SL1) Vertical path roller 1 paper sensor (PS7) Vertical path roller 1 clutch (CL5) Pre-registration paper sensor (PS9) Registration clutch (CL1) Scanning motor (M2) Scanner home position sensor (PS1) Figure 5-202 b.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM B. Movement of the Cassette Lifter When the cassette is pushed inside the copier, the pick-up roller moves down, and the light-blocking plate leaves the lifter position sensor (PS3, PS5), thereby turning on the lifter motor (M9, M10) to move up the lifter. The lifter motor stops where the lifter position sensor (PS3, PS5) can detect the top surface of the stack of copy paper on the lifter.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM Main motor M1 Feeding rollers Pick-up roller Separation roller Lifter detecting lever (light-blocking plate) Paper sensor (PS2,PS4) Lifter sensor (PS3, PS5) Paper detecting roll Pick-up roller arm Paper detecting lever Pick-up roller Lifter Copy paper M Lifter motor (M9,M10) Figure 5-206 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM C. Identifying the Size of Copy Paper 1. Outline The size of copy paper inside the cassette is identified by the paper size sensors mounted to the rear of the cassette holder. When the cassette is slid inside the cassette holder, the paper size sensors are activated by the bosses on the cassette, enabling detection of the width and the length of copy paper.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM Width guide (rear) Paper width detecting VR Paper length sensor unit Width guide (front) Cassette Length guide Figure 5-208 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3. Markings on the Width Guide Rail The width guide rail inside the cassette has paper size holes, marked A through M as shown in Table 5-201. Use these holes if the user reports skew movement of copy paper to find out if the copy size width is correctly set. (Note that this information is not disclosed to the user.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 4. Paper Size The microprocessor on the DC controller PCB determines the size of copy paper as in Table 5-202 based on the paper width and length inputs. Paper length PS102/ PS101/ PS102/ PS101/ PS102/ PS101/ PS102/ PS101/ sensor PS104 PS103 PS104 PS103 PS104 PS103 PS104 PS103 Paper Signal SZ 2 SZ 1 SZ 2 SZ 1 SZ 2 SZ 1 SZ 2 SZ 1 width sensor (slide level) ON/ 0 0 1 1 0 1 1 OFF 0 unit: mm 288.5 273.7 261.8 238.0 212.9 206.6 196.6 186.0 165.2 144.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM • Paper Types Paper Size (vertical × horizontal; mm) Notation A3 A3 (297±1) × (420±1) A4R A4R (210±1) × (297±1) A4 A4 (297±1) × (210±1) A5 A5 (210±1) × (148.5±1) A5R A5R (148.5±1) × (210±1) B4 B4 (257±1) × (364±1) B5R B5R (182±1) × (257±1) B5 B5 (257±1) × (182±1) 279mm × 432mm (11" × 17") 11 × 17 (279±1) × (432±1) LETTER-R LTRR (216±1) × (297±1) LETTER LTR (297±1) × (216±1) STATEMENT STMT (216±1) × (139.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM III. PICK-UP FROM THE MULTIFEEDER A. Pick-Up Operation 1. Outline The multifeeder is a mechanism which picks up copy paper from the stack placed on it and which is capable of continuous pick-up. The copy paper on the tray is monitored by the multifeeder paper sensor (PS6). The copy paper on the tray is butted against the pick-up roller by the paper guide plate.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 2. Identifying the Size of Paper on the Multifeeder The width of copy paper is identified using a variable resistor which operates in conjunction with the mevement of the slide guide on the multifeeder adjusted by the user to suit the copy paper used.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3. Sequence of Multifeeder Pick-Up Operation COPY START key ON INTR SCFW SCRV Forward Reverse SCFW SCRV LSTR STBY Main motor (M1) Multifeeder paper sensor (PS6) Multifeeder pick-up solenoid (SL3) Multifeeder pick-up clutch (CL4) Pre-registration paper sensor (PS9) Registration clutch (CL1) Scanning motor (M2) Scanner home position sensor (PS1) Figure 5-303 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM IV. CONTROLLING THE REGISTRATION CLUTCH The registration clutch (CL1) controls copy paper so that it matches the image on the drum at a specific position. Unless binding mode is used, the registration clutch (CL1) controls copy paper so that its leading edge and the leading edge of the image on the drum match. In binding mode, control will be as shown in Figure 5-401 to create a binding margin on copies.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM Drum Drum Image on drum Image on drum Copy paper Copy paper A B Copy paper ahead of image on drum Copy paper behind image on drum Figure 5-401 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM V. TWO-SIDED COPYING A. Making Two-Sided Copies 1. Outline The delivery motor (M6) starts to move in reverse a specific period of time after copy paper (from the fixing assembly) has moved past the delivery sensor (PS11), thereby moving the copy paper to the lower feeding assembly. Upon arrival inside the lower feeding assembly, sheets of copy paper are stacked in a staggered pattern.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 2. Operations 1) After having moved through the fixing assembly, part of the copy paper is moved out of the delivery assembly by the work of the delivery rollers 1 and 2. Copy paper Delivery roller 1 Delivery roller 2 Figure 5-502 2) When the leading edge of the copy paper has moved past section A, the delivery roller 2 starts to rotate in reverse to move part of it to the inside of the copier.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM B. Lower Feeding Assembly 1. Outline In two-sided copying mode, the copier performs continuous copying using its setback mechanism and the lower feeder flapper. The set-back mechanism serves to stack sheets of copy paper in the lower feeding assembly in a staggered pattern, thereby preventing double feeding within a limited space.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM Lower feeder inlet roller Set-back roller 1 Set-back roller 2 Lower feeder flapper Horizontal registration roller Lower feeder outlet roller PS13 PS14 PS12 CL8 CL7 SL6 M6 M7 M1 Horizontal registration clutch drive command (HRCD ) * * Lower feeder outlet clutch drive command (LFCD*) Lower feeder motor Lower feeder flapper solenoid drive command (LFSD ) Delivery motor DC controller PCB Figure 5-506 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 2. Set-Back Operation 1) After copying on the first side, the first copy paper is sent from the delivery assembly to the lower feeding assembly. At that time, the leading edge of the copy paper is made to arch by the set-back roller 1.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3) The set-back rollers 1 and 2 are rotated in reverse. The copy paper is then stopped when the distance between its leading edge and the set-back roller 1 is 8 mm. 8mm PS12 Set-back roller 1 Figure 5-509 4) The second copy paper is moved to the lower feeding assembly. 2nd copy paper PS12 Figure 5-510 5) The leading edge of the second copy paper is made to arch by the set-back roller 1. PS12 Set-back roller 1 Figure 5-511 COPYRIGHT © 1997 CANON INC.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 6) The set-back rollers 1 and 2 rotate to move the first and second copy papers forward. The trailing edge of the second copy paper is then moved away from the lower feeder inlet paper sensor (PS12). PS12 Set-back roller 2 Set-back roller 1 Figure 5-512 7) The set-back rollers 1 and 2 rotate in reverse. The copy paper is then stopped when the distance between its leading edge and the set-back roller 1 is 8 mm.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 8) Steps 1) through 7) are repeated up to the last copy, and the copies are stacked in the lower feeding assembly in a staggered pattern. When the last copy has been stacked, the set-back rollers 1 and 2 are rotated, and the first copy is moved forward until it is detected by the lower feeder outlet paper sensor (PS13).
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3. Sequence of Set-back Operation • A4, 2 Copies, Continuous SCFW SCRV SCFW SCRV LSTR STBY Main motor (M1) Delivery motor (M6) Delivery sensor (PS11) Lower feeder inlet paper sensor (PS12) Half speed Lower feeder motor (M7) Lower feeder outlet paper sensor (PS13) Lower feeder flapper solenoid (SL6) : CW rotation : CCW rotation Figure 5-516 5-26 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 4. Re-Pick Up 1) When the Copy Start key is pressed, the set-back rollers 1 and 2 start to rotate, moving all copy papers inside the lower feeding assembly forward. PS13 Set-back roller 2 Set-back roller 1 Figure 5-517 2) A specific period after the lower feeder outlet paper sensor (PS13) has detected the first copy paper, the lower feeder flapper is lowered and, at the same time, the lower feeder outlet roller start to rotate.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 4) When the first copy paper has moved past the set-back roller 2, the set-back rollers 1 and 2 are rotated in reverse until the second copy paper moves past the lower feeder outlet paper sensor (PS13); at the same time, the lower feeder flapper is raised.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 5.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM C. Horizontal Registration 1. Outline The horizontal registration roller moves copy paper which has been re-picked up from the lower feeding assembly to the front/rear while keeping it centered along its feeding path.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 2. Operation 1) When the Copy Start key is pressed for the first side of a two-sided copy (auto mode) the horizontal registration solenoid (SL7) turns on, and the horizontal registration motor (M5) rotates to move the horizontal registration paper edge sensor (PS16) to suit the size of the copy paper used. Reference: The horizontal registration paper edge sensor (PS16) moves to the center of the feeding path (i. e.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3) A specific period of time after the horizontal registration paper sensor (PS14) has detected copy paper, the horizontal registration clutch (CL8) turns on to rotate the horizontal registration roller. 4) If the horizontal registration paper edge sensor (PS16) is not detecting copy paper, the horizontal registration motor (M5) is rotated to move the roller until PS16 detects paper. (The horizontal registration roller moves to a point where paper has moved PS16.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM VI. DETECTING JAMS A.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM q Pick-Up Delay Jam (Cassette 1) Copy Start key ON Jam indicator INTR SCFW SCRV Cassette 1 pick-up clutch (CL2) 0.648sec Jam check Vertical path roller 1 paper sensor (PS7) Normal Error Main motor (M1) Figure 5-602 w Pick-Up Delay Jam (Cassette 2) Copy Start key ON Jam indicator INTR SCFW SCRV Cassette 2 pick-up clutch (CL3) Jam check 0.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM e Pick-Up Delay Jam (Multifeeder) Copy Start key ON Jam indicator INTR SCFW SCRV Multifeeder pick-up clutch (CL4) 0.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM t Registration Sensor Delay Jam (except for multifeeder pick-up) Copy Start key ON Jam indicator INTR SCFW SCRV SCFW Vertical path roller 1 clutch (CL5) Jam check 0.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM u Separation Sensor Delay Jam Jam indicator SCFW SCRV SCFW SCRV Registration clutch (CL1) 0.628sec Jam check Normal Separation sensor (PS10) Error Main motor (M1) Figure 5-608 i Separation Sensor Stationary Jam Jam indicator SCFW SCRV SCFW SCRV Separation sensor (PS10) Ι Jam check Normal Error Main motor (M1) Ι: Varies according to paper length (EX. A4: 1.593sec) Figure 5-609 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM o Delivery Sensor Delay Jam Jam indicator SCFW SCRV SCFW SCRV LSTR Separation sensor (PS10) 1.967sec Jam check Normal Delivery sensor (PS11) Error Main motor (M1) Figure 5-610 !0 Delivery Sensor Stationary Jam Jam indicator SCFW SCRV SCFW SCRV SCFW Delivery sensor (PS11) Ι Jam check Normal Error Main motor (M1) Ι: Varies according to paper length (EX. A4:1.421sec) Figure 5-611 5-40 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM !1 Lower Feeder Inlet Paper Sensor Delay Jam Jam indicator SCRV Delivery motor (M6) SCFW SCRV SCFW Reverse Forward Ι Jam check Lower feeder inlet paper sensor(PS12) Normal Error Main motor (M1) · The copy paper size is set so that the 20 sheets can be feeded on the lower feeding assembly. Ι : 0.473sec · The copy paper size is set so that only one sheet can be feeded on the lower feeding assembly. Ι : 0.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM !3 Lower Feeder Outlet Paper Sensor Delay Jam (1 Sheet) Jam indicator LSTR Lower feeder motor (M7) Forward Reverse 1.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM !5 Lower Feeder Outlet Paper Sensor Delay Jam (20 Sheets) Jam indicator SCFW Lower feeder motor (M7) SCRV SCFW SCRV Forward Reverse Ι Jam check Lower feeder outlet paper sensor (PS13) Normal Error Main motor (M1) Ι: Varies according to number of stack sheet · 5 sheets of copy paper: 0.444sec · 10 sheets of copy paper: 0.814sec · 20 sheets of copy paper: 1.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM !7 Horizontal Registration Paper Sensor Delay Jam Jam indicator SCFW SCRV SCFW SCRV SCFW Lower feeder flapper solenoid (SL6) Jam check 0.984sec Horizontal registration paper sensor (PS14) Normal Error Main motor (M1) Figure 5-618 !8 Horizontal Registration Paper Sensor Stationary Jam Jam indicator SCFW SCRV SCFW SCRV SCFW Horizontal registration paper sensor (PS14) Ι Jam check Normal Error Main motor (M1) Ι: Varies according to paper length (EX. A4: 1.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM VII. DISASSEMBLY AND ASSEMBLY This section explains mechanical characteristics and describes how to disassemble/assemble the copier. Be sure to observe the following whenever disassembling/assembling the copier: 1. Disconnect the power plug before starting the work. 2. Unless otherwise shown, assemble the parts by reversing the steps given to disassemble them. 3. Identify each screw by type (length, diameter) and location. 4.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM A. Pick-Up Assembly 1. Construction q w e q w e q Vertical path roller clutch w Pick-up clutch e Pick-up release solenoid Figure 5-701 r e q w q 1 r4 e 3 2 w q w e r Pick-up roller Separation roller Feeding roller Vertical path roller Figure 5-702 5-46 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 2. 1) 2) 3) 4) 5) Removing the Pick-Up Assembly Remove the cassette from the copier. Remove the multifeeder inside cover and the right cover. Remove the front right cover. Disconnect the two connectors q of the lifter motor. Remove the four screws w, and remove the cassette lifter motor assembly e. w e q w e q Figure 5-703 6) If a pedestal is used, open the pedestal right door, remove the screw r and the leaf spring t, and shift the registration guide y to the outside.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 7) Disconnect the three connectors u of the pick-up assembly. 8) Remove the seven screws i, and remove the pick-up assembly o. o i i i i u Figure 5-705 Note: Be sure to hold the pick-up assembly side plates whenever you are installing or removing the pick-up assembly. 3. Removing the Pick-Up Roller 1) Remove the pick-up assembly. 2) Remove the stop ring (plastic) q, and pull out the pick-up roller w together with its collar.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 4. Points to Note When Installing the Pick-Up Roller When installing the pick-up roller q to the pick-up assembly, be sure that the round marking w on the rubber portion is toward the front of the copier. The pick-up rollers are identified by color as follows: If brass, use it for the front. If silver, use it for the rear. w q (front of copier) Collar Figure 5-707 Note: Do not separate the rubber portion of the pick-up roller from the collar. 5.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 4) Disconnect the connector r and the stop ring t of the feeding roller; then, pull out the pick-up roller unit y and the feeding roller u at the same time. y u r t Figure 5-709 Reference: Whenever installing the feeding roller q to the pick-up assembly, be sure so that the gear w attached to the feeding roller is toward the rear of the copier. w (front of copier) q Figure 5-710 5-50 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 6. 1) 2) 3) Removing the Separation Roller Remove the pick-up assembly. Remove the right door. Remove the screw q, and remove the pick-up inlet guide w. w q Figure 5-711 4) Free the spring e from the hook (one side). 5) Remove the two stop rings r (both right and left). r e r Figure 5-712 6) Remove the two screws t and the vertical path guide y; then, disconnect the connector u. t y u t Figure 5-713 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 7) Remove the stop ring i and the support shaft o. 8) Remove the separation roller unit !0. !0 o i Figure 5-714 9) Pull out the separation roller shaft, and remove the separation roller. Reference: Whenever installing the separation roller q to the pick-up assembly, be sure so that the D-cut will be toward the front of the copier. (rear) q (front of copier) Figure 5-715 5-52 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 7. Adjusting the Pressure of the Separation Roller If double feeding or pick-up failure occurs during pick-up, change the position of the pressure spring of the separation roller. q If double feeding occurs, hook the spring on the side of A. w If pick-up failure occurs, hook the spring on the side of B. q w e B A r q Feeding roller w Separation roller e Locking lever r Pressure spring Figure 5-716 8.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 10. Adjusting the Registration (left/right) 1) Loosen the screw q, and adjust the position of the cassette hook plate w so that the reading is 0 ±1.5mm. w q Figure 5-719 (–) (+) 0 ± 1.5mm 0 2 4 6 8 10 Figure 5-720 2) After adjustment, register the paper width basic value for the cassette you have adjusted. (See Chapter 11) COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM B. Multifeeder Assembly 1. 1) 2) 3) Removing the Multifeeder Assembly Remove the multifeeder inside cover and the right cover. Disconnect the connector q. Remove the four screws w, and remove the multifeeder assembly e. q w w e Figure 5-721 2. 1) 2) 3) Removing the Multifeeder Pick-Up Roller/Separation Pad Remove the multifeeder assembly. Remove the stop ring q. While pushing down the separation pad w, remove the pick-up roller e.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 4) Raise the multifeeder tray. 5) Remove the screw r, and remove the separation pad assembly t. t r Figure 5-723 Reference: When installing the multifeeder pick-up roller q, be sure that the cross on the collar w is toward the rear. w q (front of copier) Figure 5-724 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3. Adjusting the Pressure on the Separation Pad If double feeding or pick-up failure occurs during pick-up, change the position of the separation pad: q If double feeding occurs, move the position of the spring holder q toward B. w If pick-up failure occurs, move the position of the spring holder q toward A. A B q Figure 5-725 4.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 5. Adjusting the Paper Guide Plate Cam (multifeeder assembly) Adjust the engagement of the 26T gear 1 and the 26T gear 2 so that, when the solenoid plate is in contact with the claw of the control ring, the paper guide plate and the paper guide plate cam are as shown in Figure 5-727. 26T gear 1 Control ring , Paper guide plate Claw Paper guide plate cam Solenoid plate 26T gear 2 Figure 5-727 6.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM C. Registration Roller Assembly 1. 1) 2) 3) 4) 5) 6) Removing the Registration Roller Remove the developing assembly and the drum unit. Remove the inside left cover and the inside right cover. Release the feeding assembly. Remove the transfer charging assembly. Remove the main drive assembly. (See p.7-19.) Remove the screw q, and disconnect the connector w. q w Figure 5-729 7) Remove the screw e and the bushing r; then, remove the transfer guide t.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 8) Remove the shaft retaining spring y, two E-rings u, and two bushings i (both front and rear). i u y (front) Figure 5-731 i u (rear) y Figure 5-732 9) Remove the registration roller o. o Figure 5-733 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM D. Feeding Assembly 1. 1) 2) 3) Removing the Feeding Assembly Remove the drum unit and the developing assembly. Remove the fixing assembly. Pull out the pin q, and remove the lower feeding assembly lever w. w q Figure 5-734 4) Remove the screw e, and disconnect the connector r. r e Figure 5-735 5-62 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 5) While paying attention to the spring at the rear of the feeding assembly, slide out the feeding assembly t to the front. t Figure 5-736 2. 1) 2) 3) Removing the Feeding Belt Remove the feeding assembly. Remove the transfer charging assembly. Remove the two screws q, and remove the support w, bushing e, gear r, and four fastons t. t q q w e Figure 5-737 r t Figure 5-738 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3) Disconnect the connector y, and disengage the hook u; then, remove the cleaning motor assembly i. u y i Figure 5-739 4) Remove the three screws o, and remove the electrode mount !0. o !0 Figure 5-740 5-64 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 5) Remove the screw !1, and remove the corona unit rail !2. !2 !1 Figure 5-741 6) Disengage the hook !3, and remove the air duct !4. 7) Remove the E-ring !5, and remove the gear !6. !6 !4 !3 !5 Figure 5-742 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3. Removing the Feeding Fan 1) Remove the feeding belt. 2) Disconnect the connector q, and disengage the hook w; then, remove the feeding fan e. q w e Figure 5-745 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM E. Lower Feeding Assembly 1. 1) 2) 3) Removing the Lower Feeding Assembly Slide out the cassette 1. Remove the inside left cover and the inside right cover. Remove the four connectors q and remove the four screws w ; then, remove the horizontal registration motor assembly e. q w w e q q w Figure 5-746 4) Disconnect the connector r r Figure 5-747 5-68 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 2. Attaching the Lower Feeding Assembly When the lower feeding assembly is attached, follow the instructions below. 1) Make sure that a sheet is on the lower plate of the lower feeding assembly. If there is no sheet on it, fix the sheet on the plate using a screwdriver. Sheet Screwdriver Figure 5-750 2) Make sure that part of the plate of the lower feeding inlet assembly is on the upper plate of the lower feeding assembly.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3. Removing the Set-Back Roller 1) Remove the lower feeding assembly. 2) Remove the E-ring q and the bushing w. q w Figure 5-752 3) Remove the gear e, parallel pin r, and bushing t; then, remove the set-back roller y. y t r e Figure 5-753 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 4. Removing the Lower Feeder Outlet Roller 1) Remove the lower feeding assembly. 2) Remove the gear q, parallel pin w, and bushing e. e w q Figure 5-754 3) Remove the bushing r, and remove the lower feeder outlet roller t. t r Figure 5-755 5-72 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 5. Removing the Lower Feeder Inlet Roller 1) Remove the fixing assembly. 2) Remove the E-ring q and the bushing w and the spring e. q w Figure 5-756 e Figure 5-757 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 5 PICK-UP/FEEDING SYSTEM 3) Disconnect the connector e, remove the E-ring r, spacer t, two gears y, and bushing u; then, remove the lower feeder inlet assembly i. t r u i y e Figure 5-758 4) Remove the bushing o; then, remove the lower feeder inlet roller !0. !0 o Figure 5-759 5-74 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM This chapter describes the outline of the purposes, roles and operations of fixing toner on a paper, the relationship between electric system and mechanical system and the operational timing of each component. I. II. OPERATION.......................................6-1 A. Outline ...........................................6-1 CONTROLLING THE FIXING TEMPERATURE.................................6-2 A. Controlling the Area of Heating (fixing roller)...................................
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CHAPTER 6 FIXING SYSTEM I. OPERATION A. Outline The upper roller, lower roller, and delivery roller 1 are driven by the main motor (M1), and the delivery roller 2 is driven by the delivery motor (M6). The copier’s upper roller is heated by two fixing heaters (H1 : 750 W (220 / 240 V) / 700 W (120 V) ; H2 : 640 W (220 / 240 V) / 600 W (120 V)), and its surface temperature is monitored by a thermistor (TH1).
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CHAPTER 6 FIXING SYSTEM II. CONTROLLING THE FIXING TEMPERATURE A. Controlling the Area of Heating (fixing roller) The upper fixing roller is heated by two heaters: main heater (H1) and sub heater (H2). The copier’s main and sub heaters are halogen lamps with different thermal distribution characteristics. (Figure 6-201) The surface temperature of the fixing roller is maintained even by varying the period in which these two heaters are turned ON while at the same time preventing overheating of the ends.
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CHAPTER 6 FIXING SYSTEM B. Controlling the Activation and the Temperature of the Fixing Roller (continuous copying) 1. Outline The copier’s upper fixing roller is a special thin-coating roller, and its surface temperature would tend to increase above the target temperature without control; to ensure that it remains at the target temperature, its period of activation and control temperature are controlled. 2.
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CHAPTER 6 FIXING SYSTEM 3. Controlling the Control Temperature The control temperature for the fixing roller in continuous copying is lowered in steps according to copy size and the number of copies to make. The count of copies used for temperature control is increased by 1 for each passage of copy paper over the delivery sensor (PS11), and the control temperature is switched when the count reaches a specific number.
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CHAPTER 6 FIXING SYSTEM C. Protection Mechanism The copier uses the following three to prevent malfunction of its fixing heater: • Signal from the thermistor • Signal from the SSR • Thermal switch a. Protection with Signal from the Thermistor The DC controller PCB monitors the voltage of the thermistor (TH1) and indicates a self diagnosis code in response to overheating.
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CHAPTER 6 FIXING SYSTEM b. Protection with the Signals from the SSR If the fixing heater continues to remain on because of a short circuit in the SSR, the DC controller PCB generates the error auto power-off signal (PWOFF*) to turn off the power switch. The copier’s fixing heater drive SSR sends the SSR drive signal (MSSRD, SSSRD) to the DC controller PCB when the SSR is ON; the DC controller PCB also monitors the heater drive command (MHRD, SHRD) and the SSR drive signal (MSSRD, SSSRD) at the same time.
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CHAPTER 6 FIXING SYSTEM D. Driving the Cleaning Belt The cleaning belt used to clean the upper fixing roller is driven by turning on and off the cleaning belt solenoid (SL4) by causing the cleaning belt solenoid drive command (CBSD*) generated by the DC controller circuit to go ‘1’ and ‘0’. The cleaning belt is taken up about 0.04mm each time the cleaning belt solenoid is turned ON.
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CHAPTER 6 FIXING SYSTEM III. DELIVERY ASSEMBLY A. Outline The copier performs delivery reversal for automatic duplexing copying. The delivery roller 2 is driven by the delivery motor (M6). A transparent sheet is attached to the feeding path between the delivery rollers 1 and 2; when the delivery roller 2 rotates in reverse and the paper reverses, its leading edge butts against the sheet, causing the paper to move toward the lower feeding assembly inlet.
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CHAPTER 6 FIXING SYSTEM B. Controlling the Delivery Motor 1. Outline The delivery motor (M6) is a 2-phase stepping motor. The five types of signals generated by the DC controller are converted into drive pulse commands (DMA, DMA*, DMB, DMB*) by the motor drive circuit and the delivery motor drive circuit on the motor driver 2 PCB, and are used to control the direction and the speed of rotation of the delivery motor. Figure 6-302 is a block diagram showing the circuit used to control the delivery motor.
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CHAPTER 6 FIXING SYSTEM 2. Operation a. Turning On and Off the Motor The delivery motor drive command (DMD) serves to turn on and off the motor. When the DMD command goes ‘0’, pulse signals (A, A*, B, B*) are sent by the motor drive circuit to the delivery motor drive circuit. In response, the motor drive circuit generates drive pulse commands (DMA, DMA*, DMB, DMB*) to rotate the delivery motor. b.
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CHAPTER 6 FIXING SYSTEM IV. DISASSEMBLY AND ASSEMBLY This section explains mechanical characteristics and describes how to disassemble/assemble the copier. Be sure to observe the following whenever disassembling/assembling the copier: 1. Disconnect the power plug before starting the work. 2. Unless otherwise shown, assemble the parts by reversing the steps given to disassemble them. 3. Identify each screw by type (length, diameter) and location. 4.
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CHAPTER 6 FIXING SYSTEM 2. Removing the Fixing Assembly 1) Open the front door, and delivery cover. 2) Remove the screw q, and remove the fixing assembly knob w. q w Figure 6-402 3) Open the delivery assembly. 4) Remove the screw e, and remove the connector cover r. e r Figure 6-403 6-12 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 8) Remove the two screws i, and remove the fixing assembly o in the direction of delivery. o i i Figure 6-406 Note: When removing the fixing assembly, take care not to damage the lower feeder inlet roller. 6-14 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 3. Removing the Fixing Cleaning Belt 1) Remove the fixing assembly from the copier. 2) Remove the two screws q, and remove the fixing cleaner assembly w. w q Figure 6-407 3) Insert a flat-blade screwdriver e into the stop plate r; then, release the pressure on the fixing cleaning belt. e r Figure 6-408 4) Turn the cleaning belt setting shaft t of the fixing cleaner assembly clockwise, and remove the fixing cleaning belt y. y t Figure 6-409 COPYRIGHT © 1997 CANON INC.
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CHAPTER 6 FIXING SYSTEM 4. Installing the Fixing Cleaning Belt The fixing cleaning belt consists of a feeding shaft, take-up shaft, and cleaning belt constructed as a single entity (service part). Install the fixing cleaning belt by reversing the steps used to remove it with the following in mind: • Wind the cleaning belt two to three times around the cleaning belt take-up shaft. At this time, check to make sure that the area that will come into contact with the roller is impregnated with oil.
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CHAPTER 6 FIXING SYSTEM 5. Replacing the oil sheet When the cleaning belt is repleced, the oil sheet has to be replaced at the same time. 1) Remove the fixing assembly. 2) Replace the oil sheet. (front and rear). Oil sheet Figure 6-411 Oil sheet Figure 6-412 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 6. Removing the Fixing Heater 1) Remove the fixing assembly from the copier. 2) Remove the two screws q, and remove the fixing cleaner assembly w. w q Figure 6-413 3) Remove the cord cover e from the thermal switch assembly. e Figure 6-414 4) Pull out the two fastons r of the heater (left when viewing the thermal switch). r Figure 6-415 6-18 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 5) Turn over the fixing assembly, and remove the cord cover t from the base of the fixing assembly. t Figure 6-416 6) Pull out the faston y from the bottom of the fixing assembly. 7) Remove the screw u, and remove the round terminal i. y i u Figure 6-417 8) Remove the screw o, and remove the two cord covers !0. !0 !0 o Figure 6-418 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 9) Remove the screw !1, and remove the cord cover !2 from the front. !1 !2 Figure 6-419 10) Remove the screw !3, and remove the heater mount (front) !4. !3 !4 Figure 6-420 11) Remove the two screws !5, and remove the plate !6 and the heater mount (rear) !7. !7 !5 !6 !5 Figure 6-421 6-20 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 12) Pull out the two fixing heaters !8 slowly to the front. !8 Figure 6-422 7. 1) 2) 3) 4) 5) 6) Removing the Fixing Roller Remove the fixing assembly from the copier. Remove the fixing cleaner assembly. Remove the fixing heater. Remove the screw q, and remove the thermistor mount w. Remove the two screws e, and remove the thermal switch mount r. Remove the paper guide t from the fixing assembly. e r e w q t Figure 6-423 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 7) Remove the C-ring y and the gear u at the front. u y Figure 6-424 8) Remove the C-ring i, varistor ring o, and gear !0 at the rear. !0 i o Figure 6-425 6-22 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 9) Remove the two screws !2 from the lower stay !1; then, fit them in the screw hole !3 (both sides), and release the lower roller. !3 !1 !2 Figure 6-426 10) Remove the screw !4. 11) Remove the bearing !5 and the insulating bush !6. !4 !5 !6 Figure 6-427 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 12) Pull out the upper fixing roller !7 to the front. !7 Figure 6-428 13) Lift the lower fixing roller !8 together with the bearing. !8 Figure 6-429 6-24 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 8. Installing the Upper Fixing Roller and the Heater a. Points to Note When Installing the Upper Fixing Roller. q If possible, wrap the roller in copy paper to protect its surface against dirt and scratches. w Orient the insulting bush as shown. Insulating bushes Rear plate Front plate Figure 6-430 e Orient the upper fixing roller so that its side with the longer bushing A is toward the rear. A (rear) (front) Figure 6-431 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM b. Points to Note When Installing the Heater q Do not touch the surface of the heater. w For the sub heater, one of the terminals of the lead wires q is a round terminal w. For the main heater, both sides are fastons.
q Figure 6-432 The side with the longer lead wire q is toward the front of the copier. _{w q Figure 6-433 The round terminal is toward the rear. The faston is toward the front.}
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CHAPTER 6 FIXING SYSTEM 9. Adjusting the Nip (tightening the pressure adjusting nut) The nip is correct if it is as indicated in Table 6-401; otherwise, adjust it by turning the bolt. , , , c A3 Feeding direction b Center of copy paper a Figure 6-435 Note: a and c are points 10mm from both edges of copy paper. Dimension b |a-c| Measurement Tracing paper (SM-1); 64/80g paper 5.5 ±0.5mm 0.5mm or less Table 6-401 a.
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CHAPTER 6 FIXING SYSTEM 10. Installing the Thermistor Check to make sure that the detecting face of the thermistor is in even contact with the upper fixing roller. In addition, make sure that the lead wire from the thermistor is not forced taut. Reference: You need not adjust the position of the thermistor. If the contact is not even, suspect deformation of the thermistor spring. q w e q Thermistor spring w Upper fixing roller e Thermistor Figure 6-436 11.
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CHAPTER 6 FIXING SYSTEM 12. Position of the Paper Guide The paper guide is positioned by the paper guide mount. Therefore, you need not adjust its position when installing the paper guide. Note: Do not loosen the screw on the paper guide; you will have to adjust the position of the paper guide if you removed the paper guide. If you loosened the screw for some reason, be sure to adjust the position with reference to the notch on the fixing assembly mount. 13.
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CHAPTER 6 FIXING SYSTEM B. Delivery Assembly 1. 1) 2) 3) Removing the Delivery Assembly Open the front door. Open the delivery assembly. Remove the screw q, and remove the connector cover w. q w Figure 6-439 6-30 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 4) Disconnect the two connectors e, and remove the grounding wire fixing screw r. 5) Remove the wire t. (front ; hook, rear ; screw) 6) Remove the screw y, and remove the support plate u; then, remove the delivery assembly i. t r e Figure 6-440 t u y i Figure 6-441 Note: When removing the wire fixing screw (front), be sure to support the delivery assembly. COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 2. Removing the Upper Separation Claws 1) Open the delivery assembly. 2) Remove the screw q, and remove the insulating cover w. w q Figure 6-442 3) Remove the two screws e, and remove the upper separation claw unit r. e r Figure 6-443 4) Remove the spring t, and remove the upper separation claws y. y t Figure 6-444 Note: When installing the upper separation claw unit, be sure to do so while forcing it toward the front. 6-32 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 3. 1) 2) 3) Removing the Lower Separation Claws Open the delivery assembly. Remove the four springs q of the lower separation claws. Remove the two screws w, and remove the lower separation claw support plate e. e w e q Figure 6-445 4) Remove the four lower separation claws r. r Figure 6-446 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 4. Removing the Delivery Motor 1) Open the delivery assembly. 2) Remove the screw q , and remove the connector cover w. q w Figure 6-447 3) Disconnect the connector e. e Figure 6-448 6-34 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 6 FIXING SYSTEM 4) Remove the two screws r, and remove the motor cover t. 5) Remove the two screws y, and remove the harness cover u. r u y t Figure 6-449 6) Remove the two screws i, and remove the delivery motor o. i o Figure 6-450 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS This chapter describes the outline of the purposes, roles and operations of the mechanisms for auxiliary control of this copier, the relationship between the electric system and mechanical system, and the operational timing of each component. I. II. III. FANS ..................................................7-1 POWER SUPPLY ...............................7-3 A. Outline of Power Supply................7-3 B. Protection Mechanisms of the Power Supply Circuit ...............
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CHAPTER 7 CONTROLS AND EXTERNALS I. FANS As many as five fans are used in the copier. See Table 7-101 for the orientation and the function of each fan and the filters used, and see Figure 7-101 for when each of the fans turn on. FM1 FM2 FM3 FM4 FM5 Figure 7-101 No. Name FM1 Scanner cooling fan FM2/ FM3 Exhaust fan 1/ Exhaust fan 2 Orientation Blowing Blowing Filter Air Ozone Function • Cools the scanner. • Exhausts ozone generated by charging assemblies through a filter.
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CHAPTER 7 CONTROLS AND EXTERNALS Power switch ON WMUP WMUPR COPY START key ON STBY Power switch OFF INTR SCFW SCRV LSTR STBY Scanner cooling fan (FM1) Exhaust fan 1 (FM2) Exhaust fan 2 (FM3) *1 *1 *1 *1 5min Feeding fan (FM4) Power supply PCB cooling fan (FM5) *1: Exhaust fan is rotated at a half speed during stand-by state. Figure 7-102 7-2 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS II. POWER SUPPLY A.
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CHAPTER 7 CONTROLS AND EXTERNALS AC power is supplied to the DC power supply PCB and other loads when the door switch (DSW1) and the power switch (SW1) are turned on. The DC power supply PCB generates +24 VA, +24 VB, +12 V, and +5 V. The drum heater is supplied with power when the power switch is turned off. The DC power supplied to the DC controller is cut off when the copier’s power switch is turned off; to back up any data, the RAM on the DC controller PCB is equipped with a lithium battery (BAT101).
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CHAPTER 7 CONTROLS AND EXTERNALS B. Protection Mechanisms of the Power Supply Circuit The DC power supply PCB is equipped with an overcurrent protection circuit and an over voltage protection circuit. If an error, and as a result a short circuit, occurs in any of the loads, the protection circuits will turn on to cut off the output of power. The protection circuits can be reset by depriving the DC power supply PCB of AC power for 1 min or more (by disconnecting the power plug).
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CHAPTER 7 CONTROLS AND EXTERNALS III. ERROR DETECTION CIRCUIT A. Outline The copier’s power switch (SW1) is equipped with a relay which turns on in response to the following to cut off the AC power to the DC power supply PCB: q Error in the scanning lamp w Error in the fixing heater Reference: The relay will also turn on to turn off the power switch when the copier is not operated for a specific period of time set in user mode.
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CHAPTER 7 CONTROLS AND EXTERNALS B. Scanning Lamp Error Activation Detection Circuit The state (activation) of the scanning lamp (LA1) is monitored by the gate array (IC115) on the DC controller PCB. The lamp regulator sends the lamp ON detection signal (LDT) to the DC controller while the scanning lamp remains on.
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CHAPTER 7 CONTROLS AND EXTERNALS IV. DISASSEMBLY AND ASSEMBLY This section explains machanical characteristics and describes how to disassemble /assemble the copier. Be sure to observe the following whenever disassembling/assembling the copier: 1. Disconnect the power plug before starting the work. 2. Unless otherwise shown, assemble the parts by reversing the steps given to disassemble them. 3. Identify each screw by type (length, diameter) and location. 4.
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CHAPTER 7 CONTROLS AND EXTERNALS A. Externals q w u e y t r i !1 o !0 Figure 7-401 q w e r t y Copyboard cover Left cover (3) Front door (1 + pin x 2) Front left cover (2) Cassette Front right cover (2) u i o !0 !1 Control panel Multifeeder inside cover (2) Right cover (5) Rear cover (4) Right door (2) Note: The number in parentheses indicates the number of mounting screws used. Remove the covers as necessary to clean, inspect, or repair the inside of the copier.
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CHAPTER 7 CONTROLS AND EXTERNALS q w q Left inside cover (4) w Right inside cover (2) Figure 7-402 Remove the covers as necessary to clean, inspect, or repair the inside of the copier. Those covers that may be removed through mere removal of mounting screws on their own are omitted from the discussions. 7-10 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS 1. 1) 2) 3) Remove the left inside cover Open the front door and delivery cover. Remove the screw q and two pins w ; then, remove the front door e. Open the hopper r. r q e w Figure 7-403 4) Remove the screw t, and remove the fixing assembly knob y. 5) Remove the four screws u, and remove the left inside cover i. u u i y t u Figure 7-404 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS 2. Remove the right inside cover 1) Remove the left inside cover. 2) Remove the connector cover q. q Figure 7-405 3) Turn the feeding assembly releasing lever w counterclockwise to release the feeding assembly. 4) Disconnect the connector e. e w Figure 7-406 7-12 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS 5) Remove the grip ring r, and remove the feeding assembly releasing lever t. 6) Remove the two knob y. 7) Remove the two screws u, and remove the right inside cover i. y u i t r y u Figure 7-407 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS B. Control Panel 1. Removing the Control Panel 1) Remove the left inside cover and right inside cover. 2) Disconnect the four connectors q. q q Figure 7-408 3) Remove the four screws w. w w w Figure 7-409 4) Remove the magnet plate retaining screw e, and remove the control panel r. e r Figure 7-410 7-14 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS C. Copyboard Cover 1. Replacing the Copyboard Cover Sheet The copyboard cover sheet is attached to the copyboard cover by means of doublesided tape, allowing you to remove it by simply pulling on its corners. Be sure to press the entire surface of the sheet after attachment. D. Fans 1. 1) 2) 3) 4) Removing the Scanner Cooling Fan Remove the rear cover. Disconnect the connector q. Free the harness w from the harness retainer.
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CHAPTER 7 CONTROLS AND EXTERNALS 4) Remove the ozone filter e. e Figure 7-413 5) Remove the fixing assembly. 6) Remove the two screws r, and remove the fan t in the direction of delivery together with the duct. r r t Figure 7-414 7-16 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS 7) Remove the two screws y, and disconnect the connector u; then, remove the exhaust fan i. u i y Figure 7-415 3. Removing the Feeding Fan (See p. 5-67) E. Main Motor Assembly 1. Removing the Main Motor Assembly 1) Remove the rear cover. 2) Remove the four screws q, and disconnect the two connectors w; then, remove the main motor assembly e. q q e w Figure 7-416 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS F. Mirror Guide Assembly 1. 1) 2) 3) Removing the Mirror Guide Plate Remove the copyboard glass. Remove the lens hood. Remove the screw q, and remove the mirror guide plate w. w q Figure 7-417 7-18 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS G. Main Drive Assembly 1. 1) 2) 3) Removing the Main Drive Assembly Remove the developing assembly and the drum unit. Remove the rear cover. Remove the screw q, and disconnect the three connectors w; then, remove the lamp regulator PCB e. w e w q Figure 7-418 4) Remove the faston r. r Figure 7-419 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS 5) Remove the two screws t, and slide the high-voltage terminal y upward. (Be sure to release the feeding assembly in advance.) y t t Figure 7-420 6) Remove the two grip rings u, and disconnect the two connectors i; then, remove the registration roller clutch o and the horizontal registration roller clutch !0. u o !0 i Figure 7-421 7-20 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS 7) Remove the connector !1. !1 Figure 7-422 8) Remove the six screws !2, and detach the timing belt from pulleys A and B (Figure 7-424); then, remove the main drive assembly !3. !2 !3 !2 !2 !2 !2 !2 Figure 7-423 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS 2. Attaching the Drive Belt Attach the drive belt on the gears and rollers as shown in the figure. Main motor Pulley A Pulley B Drum drive belt Drive belt Figure 7-424 7-22 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS H. Cleaning Belt Drive Assembly 1. 1) 2) 3) Removing the Cleaning Belt Drive Assembly Remove the rear cover. Disconnect the connector q. Remove the screw w, and remove the cleaning belt drive assembly e. e q w Figure 7-425 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 7 CONTROLS AND EXTERNALS I. DC Controller PCB 1. Removing the DC Controller PCB 1) Disconnect all connectors from the DC controller PCB. 2) Remove the two screws q, and remove the DC controller PCB w together with its mount. q q w Figure 7-426 Note: The DC controller PCB is equipped with a battery (BAT101). Keep the following in mind when handling the battery, as shorting its both terminals can lead to overheating. 2.
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CHAPTER 7 CONTROLS AND EXTERNALS J. DC Power Supply PCB 1. Removing the DC Power Supply PCB 1) Remove the three screws q, and disconnect the six connectors w; then, remove the motor driver 1 PCB e together with its mount. w e q w q w Figure 7-427 2) Disconnect all connectors from the DC power supply PCB. 3) Remove the four screws r, and remove the DC power supply PCB t. t r r Figure 7-428 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL This chapter describes the outline of the purposes, roles and operations of each mechanism for the paper deck pedestal, the relationship between the electric system and mechanical system, and the operational timing of each component. I. II. III. BASIC OPERATION...........................8-1 A. Outline of Electrical Circuit ............8-1 INPUTS TO AND OUTPUTS FROM PEDESTAL CONTROLLER ...............8-2 A. Outline ...........................................8-2 B.
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CHAPTER 8 PAPER DECK PEDESTAL I. BASIC OPERATION A. Outline of Electrical Circuit The operation of the pedestal is controlled by the pedestal controller PCB, which functions according to the communication control signal from the copier. The communication between the machine and the copier is in the form of IPC communication, and is handled by the communication IC on the copier’s DC controller PCB and the pedestal controller PCB of the machine. DC controller PCB J112 IPC J101 J102 IPC 1.
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CHAPTER 8 PAPER DECK PEDESTAL II. INPUTS TO AND OUTPUTS FROM PEDESTAL CONTROLLER A. Outline Sensor Pedestal controller PCB Motor IC103 (CPU) Deck size Switch PCB Solenoid IC101 (ROM) Clutch IC109 (IPC) Copier (DC controller PCB) Figure 8-201 8-2 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL B. Inputs to and Outputs from Pedestal Controller 1.
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CHAPTER 8 PAPER DECK PEDESTAL 2. Inputs and outputs (2/2) Pedestal controller PCB M1 J201 -1 J108 -1 -2 J202 -2 J109 -1 -5 Pedestal motor -5 -1 -2 -4 Motor driver -3 -2 PCB -3 CL1 CL2 PEDMD (output) When '1', pedestal motor is ON. When '1', pedestal motor is normal. LOCK* (input) PEDSP '1' or '0' depending on the type of copier, thereby changing revolution.
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CHAPTER 8 PAPER DECK PEDESTAL III. PEDESTAL MOTOR CONTROL CIRCUIT A. Outline Figure 8-301 shows the circuit that controls the pedestal motor (M1), and the circuit has the following functions: q Turns on and off the pedestal motor w Rotates the pedestal motor at a specific speed The pedestal motor (M1) is a DC motor equipped with a clock pulse generator. When the motor rotates, clock pulses (MMCLK) corresponding to the revolution of the motor are generated.
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CHAPTER 8 PAPER DECK PEDESTAL IV. PAPER DECK UNIT A. Basic Construction The paper deck unit controls the operation of each load according to the signals from the pedestal controller PCB to send paper to the copier. Each of the loads used to pick-up and feed paper or raise the lifter is driven by the pedestal motor. If you operated the deck size switch, the size of the paper inside the deck is communicated to the copier through the pedestal controller PCB.
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CHAPTER 8 PAPER DECK PEDESTAL B. Pick-Up/Feeding Operation 1. Mechanism When the copier’s COPY START key is pressed, the deck pick-up clutch (CL2) turns on to rotate the deck pick-up roller. The deck pick-up roller leaves the paper when the deck pick-up roller release solenoid (SL1) turns on after feeding the paper.
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CHAPTER 8 PAPER DECK PEDESTAL 2. Sequence of Pick-Up Operations A4, 2 Copies, Continuous COPY START key ON INTR SCFW SCRV SCFW SCRV LSTR Pedestal request signal Copier Pick-up (from copier) Deck pick-up clutch (CL2) Deck pick-up roller release solenoid (SL1) Deck vertical path roller paper sensor (PS3) Vertical path roller 3 paper sensor (PS2) Deck vertical path roller drive clutch (CL3) Vertical path roller 3 drive clutch (CL1) Figure 8-403 8-8 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL C. Lifter Operation 1. Operation When the deck is slid inside the pedestal, the pick-up roller lowers and the lightblocking plate leaves the deck lifter position sensor (PS5). The condition causes the lifter drive clutch (CL4) to turn on, and the drive of the pedestal motor (M1) is transmitted to the cable take-up shaft, thereby raising the lifter. The lifter keeps rising until the deck lifter position sensor (PS5) detects the top sheet of the paper stack placed on the lifter.
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CHAPTER 8 PAPER DECK PEDESTAL 2. Lifting Operation Main motor M1 Feeding roller Pick-up roller Separation roller Deck lifter position sensor (PS5) Paper sensor (PS4) Paper detecting lever Paper detecting spacer Pick-up roller Deck lifter upper limit sensor (PS6) Lifter limit detecting lever Copy paper Oil damper Figure 8-405 8-10 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL D. Detecting Paper in the Deck 1. Identifying the Size of Paper You must set the switch (SWUD1) on the deck size switch PCB to suit the size of paper set inside the paper deck. When you set the switch, the paper size signal (SIZE1 and SIZE2) sent to the pedestal controller PCB changes to ‘1’ or ‘0’.
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CHAPTER 8 PAPER DECK PEDESTAL 2. Identifying the Presence/Absence of Paper The presence and absence of copy paper inside the paper deck is identified by the deck paper sensor (PS4). When the paper deck runs out of paper, the paper detecting spacer attached to the pick-up roller shaft drops. As a result, the paper detecting lever leaves the deck paper sensor (PS4), causing the pedestal controller PCB to identify the absence of paper.
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CHAPTER 8 PAPER DECK PEDESTAL V. DETECTING JAMS 1. Outline The pedestal is equipped with the following paper sensors to check the presence/ absence of copy paper and to make sure that copy paper is moved properly. • Vertical path roller 3 paper sensor (PS2) • Deck vertical path roller paper sensor (PS3) The presence or absence of paper or a jam condition is checked in reference to the presence/absence of paper over each of the sensor at such times as programmed in advance in the pedestal controller PCB.
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CHAPTER 8 PAPER DECK PEDESTAL q Pick-Up Delay Jam Copy Start key ON Jam indicator INTR SCFW SCRV Pick-up clutch*1 Jam check Vertical path roller paper sensor*2 Normal Error Pedestal motor (M1) *1: Vertical path roller 3 drive clutch (CL1) Deck pick-up clutch (CL2) *2: Vertical path roller 3 paper sensor (PS2) Deck vertical path roller paper sensor (PS3) Figure 8-502 w Pick-Up Stationary Jam Copy Start key ON Jam indicator INTR SCFW SCRV Vertical path roller paper sensor*1 Ι Jam check Nor
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CHAPTER 8 PAPER DECK PEDESTAL VI. DISASSEMBLY AND ASSEMBLY This section explains mechanical characteristics and describes how to disassemble/assemble the pedestal. Be sure to observe the following whenever disassembling/assembling the pedestal. 1. Disconnect the power plug before starting the work. 2. Unless otherwise shown, assemble the parts by reversing the steps given to disassemble them. 3. Identify each screw by type (length, diameter) and location. 4.
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CHAPTER 8 PAPER DECK PEDESTAL A. Externals 1. Paper Deck Pedestal-M1 The number in parentheses indicates the number of mounting screws. q q w e r t y Upper front cover (4) Front left cover (2) Deck front cover (4) Front right cover (2) Right cover (4) Right door cover (4) y w e t r Figure 8-601 u Rear cover (4) i Left cover (4) u i Figure 8-602 8-16 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL 2. Detaching the Copier from the Pedestal 1) Disconnect the copier’s power plug. 2) Disconnect the pedestal’s connector q from the copier. q Figure 8-603 3) Open the pedestal’s right door. 4) Push in the leaf spring w, and release the vertical path roller 3 unit e. w e Figure 8-604 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL B. Pedestal Motor Drive Assembly 1. 1) 2) 3) Removing the pedestal motor drive assembly Remove the rear cover. Disconnect the two connectors q. Remove the four screws w, and remove the pedestal motor drive assembly e. e w q w Figure 8-606 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL C. Paper Deck 1. Removing the Paper Deck 1) Remove the front right cover and the front left cover. 2) Remove the mounting screw q, and remove the stopper plate w from both left and right. q w Figure 8-607 w q Figure 8-608 3) Slide out the paper deck slowly to the front. 8-20 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL 2. 1) 2) 3) Removing the Lifter Wire Remove the paper deck. Remove the deck front cover. Remove the two screws q from the inside of the deck, and remove the guide plate w from both front and rear. w q Figure 8-609 4) Mark the position of the latch assembly, and remove the latch assembly by removing the mounting screws e on both left and right (4 in total). e Figure 8-610 e Figure 8-611 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL 5) Remove the mounting screw r from the front right, and remove the gear cover t. t r Figure 8-612 6) Remove the mounting screw y from the front, and remove the oil damper plate u. y u Figure 8-613 8-22 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL 7) Remove the E-ring i from the lifter drive shaft (rear); then, remove the gear o, two washers, and spring !0. o !0 i Figure 8-614 8) Remove the E-ring !1; then, remove the gear !2, parallel pin, and pulley cover (front/ rear in common). !1 !2 Figure 8-615 9) Remove the end of the wire from the pulley (front/rear in common). COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL 10) Remove the fastener !3 from the wire relay assembly; then, remove the pulley cover and the wire from the pulley (front/rear in common). !3 Figure 8-616 11) Remove the mounting screw !4, and remove the wire together with the mounting support. !4 Figure 8-617 8-24 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL 3. Setting the Deck Size To change the paper deck size, change the position of the guide plate at the front, rear, and rear left. 1) Slide out the deck toward the front until it stops. 2) Remove the mounting screw from the guide plate at the front, rear, and rear left; then, remove the guide plates.
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CHAPTER 8 PAPER DECK PEDESTAL Note: Make sure that the front and rear guide plates are attached as follows: • Perpendicular to the base plate of the deck. • Parallel to the metal plates at the front and the rear. 4) 5) 6) 7) Place paper in the deck, and slide the deck into the pedestal. Open the right door of the deck. Remove the switch cover. Set the deck size switch q to reflect the new paper size. q Figure 8-620 8) Install the switch cover. 9) Attach the size seal to the front cover of the deck.
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CHAPTER 8 PAPER DECK PEDESTAL 4. Adjusting the Deck Registration Remove the deck front cover, and loosen the mounting screws on both left and right of the deck (4 in total); then, move the latch assembly to the front and rear until the standards shown in Figure 8-623 are met. Adjusting screw (left) Figure 8-621 Adjusting screw (right) Figure 8-622 (–) (±) ±1.5mm 0 2 4 6 8 10 Figure 8-623 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL 2. Removing the Pick-Up Assembly 1) Slide out the paper deck. Note: • Do not try to remove the pick-up assembly without sliding out the paper deck from the pedestal; the lifter will make the removal of the pick-up assembly impossible. • Do not slide out the paper deck too far toward the front; doing so would cause the pedestal to tilt to the front when the pick-up assembly is removed 2) Remove the right cover.
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CHAPTER 8 PAPER DECK PEDESTAL 6) Remove the nine mounting screw t, and remove the pick-up assembly y. y t t Figure 8-628 3. Removing the Pick-Up Roller 1) Remove the pick-up assembly. 2) Remove the stop ring q, and remove the pick-up roller w together with the roller collar. w q Figure 8-629 n Points to Note When attaching the pick-up roller q to the pick-up assembly, make sure that the round mark w on its rubber portion is toward the front of the pedestal.
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CHAPTER 8 PAPER DECK PEDESTAL 4. Removing the Feeding Roller 1) Remove the pick-up roller from the front. 2) Remove the mounting screw q, and remove the pick-up roller arm bushing w. q w Figure 8-631 3) Remove the pick-up roller arm e and the weight r from the pick-up roller shaft. r e Figure 8-632 4) Remove the stop ring t for the feeding roller. t Figure 8-633 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 8 PAPER DECK PEDESTAL 5) Remove the pick-up roller from the rear, and remove the pick-up roller shaft from the bushing at the rear. 6) Remove the drive belt y from the feeding roller u, and remove the feeding roller and the roller shaft i. u i y Figure 8-634 n Points to Note When attaching the feeding roller q, make sure that the belt pulley w attached to the feeding roller is toward the rear of the pedestal. w q (front of pedestal) Figure 8-635 8-32 COPYRIGHT © 1997 CANON INC.
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CHAPTER 8 PAPER DECK PEDESTAL 5. Removing the Separation Roller 1) Open the right door, and remove the two mounting screws q from the separation roller assembly support plate w; then, remove the separation roller together with the pressure arm. q w Figure 8-636 2) Remove the stop ring e, and remove the separation roller r. r e Figure 8-637 n Points to Note When attaching the separation roller q, make sure that the D-cut in the roller collar is toward the front of the pedestal.
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CHAPTER 8 PAPER DECK PEDESTAL 6. Adjusting the Pressure of the Separation Roller If double feeding or pick-up failure occurs frequently during pick-up operation, adjust the position of the pressure spring for the separation roller. q if double feeding is frequent, move the hook of the spring toward A. w if pick-up failure is frequent, move the hook of the spring toward B. q w e B A r q Feeding roller w Separation roller e Pressure lever r Pressure spring Figure 8-639 7.
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CHAPTER 9 INSTALLATION This chapter describes how to install this copier. I. II. SELECTING THE SITE ......................9-1 UNPACKING AND INSTALLATION....9-2 A. Unpacking and Removing the Metal Fixings ...........................9-2 B. Supplying Toner.............................9-6 COPYRIGHT © 1997 CANON INC. III. C. Stirring the Toner ...........................9-8 D. Installing the Drum Unit .................9-10 E. Checking Images and Operations .....................................
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CHAPTER 9 INSTALLATION I. SELECTING THE SITE Keep the following in mind when selecting the site of installation; if possible, pay a visit to the user’s before the delivery of the copier: 1. There must be a power outlet that satisfies the required power ratings and that may be used exclusively for the copier. 2. The temperature must be between 7.5°/45.5F and 32.5°C/90.5F and the humidity, between 5% and 85%. In particular, avoid areas near water faucets, water boilers, humidifiers, and refrigerators. 3.
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CHAPTER 9 INSTALLATION II. UNPACKING AND INSTALLATION Bringing in a metal object from a cold to warm place can cause droplets of water on its surface. This phenomenon is known as condensation, and copiers subject to condensation can generate blank copies. If condensation is expected, leave the copier without unpacking it for 1 hour or more, and start the installation work after it has become used to the room temperature. A. Unpacking and Removing the Metal Fixings No.
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CHAPTER 9 INSTALLATION No. 5 Work Checks/remarks If you are not installing a paper deck pedestal, install the lower right cover. If you are installing any of the above pedestals, you will not need the lower right cover. 2 1 Lower right cover 6 Remove the taping from the scanner metal fixing found outside the left cover; then, slide the metal fixing to the right, and pull it to the front to remove.
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CHAPTER 9 INSTALLATION No. Checks/remarks Work 9 Open the front cover, and open the delivery assembly. 10 Push up the spacer (one each at front and rear) of the fixing roller in the direction of the arrow until a click is heard. 11 Remove the spacer. Spacer Spacer • You will not be using the spacer. Note: When removing the spacer, pay attention to the leaf spring of the fixing unit and the separation claw of the delivery assembly.
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CHAPTER 9 INSTALLATION No. Checks/remarks Work 13 Remove the connector cover. 14 Turn the developing assembly releasing lever in the direction of the arrow to unlock the developing assembly. Connector cover Developing assembly Developing assembly releasing lever Disconnect the connector, and remove the developing assembly. Check the developing cylinder for scratches and dirt. Connector 15 Install the developing assembly; then, connect the connector.
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CHAPTER 9 INSTALLATION B. Supplying Toner No. Checks/remarks Work 1 Shake the toner cartridge left and right vigorously so that the toner inside it is even. 2 Fit the boss of the toner cartridge in the groove found at the rear of the hopper; then, wiggle the cartridge slightly until a click is heard, indicating that the cartridge has settled in position. 3 While holding lightly down on the cartridge, pull out the black grip of the hopper to the front.
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CHAPTER 9 INSTALLATION No. Work 5 Tap lightly on the top of the toner cartridge so that all toner moves to the hopper. 6 Push the grip of the hopper back to the rear, and detach the cartridge. Checks/remarks Reference: If the grip is returned to the end, this side of the cartridge will be removed from the hopper. 7 Put the hopper back into its initial position. COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 9 INSTALLATION C. Stirring the Toner No. Work 1 Connect the power plug. 2 Using the door switch actuator, turn on the door switch, thereby turning on the power. Note: Checks/remarks • Check to make sure that the Add Paper indicator has turned on opening and closing the copyboard cover. • Press the keys on the keypad and the Clear key to make sure that the correct copy count is indicated. Check to make sure the feeding assembly has been unlocking.
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CHAPTER 9 INSTALLATION No. 5 Work Fit the stepped screws as shown, and install the original tray. Checks/remarks • You may install the original tray on either left or right. Stepped screws Original tray Stepped screws Original tray 6 Install the copy tray to the delivery assembly. 7 Pull out the static eliminator, and clean it with the static eliminator cleaning brush. Thereafter, set the static eliminator, and put the cleaning brush back into its original place.
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CHAPTER 9 INSTALLATION D. Installing the Drum Unit The copier’s photosensitive drum is highly susceptible to light. Exposure to even room light can cause white spots or black bands on copies. Try to work as quickly as possible. No. Checks/remarks Work 1 Keep the developing assembly unlocked, and open the hopper. 2 Open the drum unit, and remove the light-blocking sheet. 3 Set the drum unit in the copier, and fix it in place using the screw removed from the dummy drum.
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CHAPTER 9 INSTALLATION E. Checking Images and Operations No. Work 1 Remove the door switch actuator, and close the front door. 2 Connect the power plug, and turn on the power switch. 3 Switch the cassette size according to the needs of the user. Checks/remarks • Check to make sure that the Add Paper indicator turns on, opening and closing the copyboard cover. First, switch the size guide plate to suit the paper size.
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CHAPTER 9 INSTALLATION No. Work 11 Move the copier to the site of installation. 12 Enter the necessary information in the Service Sheet. 9-12 COPYRIGHT © 1997 CANON INC. Checks/remarks • Check to make sure that the copier is more or less level. CANON NP6330 REV.
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CHAPTER 9 INSTALLATION III. RELOCATING THE COPIER Perform the steps that follow before relocating the copier by truck or other means of transportation. Step Work 1 Move the lens to Direct position. 2 Remove the drum unit. 3 Fix the scanner in place. 4 Tape the charging assembly and feeding assembly releasing levers in place to avoid shifting by vibration. 5 Tape the front door and the delivery assembly in place.
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CHAPTER 10 MAINTENANCE AND INSPECTION This chapter describes the components useful for maintenance of this copier and the checking methods. I. II. PERIODICALLY REPLACED PARTS ................................................10-1 A. Periodically Replaced Parts ..........10-1 CONSUMABLES AND DURABLES ...10-2 A. Copier ............................................10-2 COPYRIGHT © 1997 CANON INC. III. IV. B. Paper Deck Pedestal.....................10-3 C. Cassette Feeding Unit...................
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CHAPTER 10 MAINTENANCE AND INSPECTION I. PERIODICALLY REPLACED PARTS Some of the copier’s parts must be replaced on a periodical basis to ensure a specific level of performance. Replace them as indicated regardless of the presence/absence of external damage. (Schedule the replacement so that it coincides with scheduled servicing.) A. Periodically Replaced Parts as of May 1997 No. Parts Parts No.
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CHAPTER 10 MAINTENANCE AND INSPECTION II. CONSUMABLES AND DURABLES Some of the copier’s parts may have to be replaced once or more because of deterioration or damage over the period of warranty. Replace them as necessary. A. Copier as of May 1997 Parts No. Parts No.
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CHAPTER 10 MAINTENANCE AND INSPECTION B. Paper Deck Pedestal as of MAY 1997 No. Parts Parts No. Q’ty Life (copies) 1 Pick-up roller (front) FF5-1221-000 1 240,000 2 Pick-up roller (rear) FF5-1220-000 1 240,000 3 Feeding roller FB1-7061-000 1 120,000 4 Separation roller FB1-7060-020 1 120,000 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 10 MAINTENANCE AND INSPECTION III. SCHEDULED SERVICING Note: 1. As a rule, perform scheduled servicing every 20,000 copies. 2. Before setting out for a visit, check the service book, and take parts likely to need replacement. No. Checks Work 1 Meet the person incharge Check the general condition. 2 Record the counter reading Check fault copies. 3 Make test copies: a. Image density b. Soiling of white background c. Clarity of characters d.
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CHAPTER 10 MAINTENANCE AND INSPECTION No. Work 7 Provide scheduled servicing to suit the number of copies made (P.10-7). 8 Clean the copyboard cover and the copyboard glass. 9 Make test copies. 10 Make sample copies. 11 Put sample copies in order, and clean up the area around the copier. 12 Record the final counter reading. 13 Fill out the service sheet and report to the person in charge. COPYRIGHT © 1997 CANON INC. Checks CANON NP6330 REV.
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CHAPTER 10 MAINTENANCE AND INSPECTION IV. PERIODICALLY SERVICED PARTS A. Copier :Clean Part Unit Externals X:Oil :Replace every every every 20,000 60,000 180,000 copies copies copies :Adjust 1yr. :Inspect Remarks Copyboard glass Use alcohol Ozon filter Replace every 60,000 copies or 1yr. Pick-up assembly Pick-up roller Scanner drive assembly Scanner rail Scanner drive wire Mirror positioning tool Feeding assembly Transfer guide assembly Use a moist cloth.
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CHAPTER 10 MAINTENANCE AND INSPECTION Unit Corona unit Fixing assembly Parts every every every 20,000 60,000 180,000 copies copies copies 1yr. Remarks Transfer corona wire Static eliminator Use the cleaning brush Upper fixing roller Use cleaning oil Lower fixing roller Separation claw (upper, lower) Use solvent Fixing inlet guide Caution: Do not use solvents/oil other than those specified. COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING This chapter describes the maintenance, checks, standards, adjustment, troubleshooting for image fault, operation fault and feeding fault of this copier, electrical component arrangement, their roles, service mode and self-diagnosis. I. II. III. IV. V. MAINTENANCE AND INSPECTION....................................11-3 A. Image Adjustment Basic Procedure ....................................11-3 B. Points to Note for Scheduled Servicing ......................................
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Guide to Troubleshooting Tables The troubleshooting procedures in this manual are prepared in the form of tables, rather than flow charts. Study the following for an idea of how to consult the tables. EX. AC power is absent. Checks Remedies YES/NO Cause/Fault Step Power plug 1 Is the power plug connected to the outlet? NO Connect the plug. Covers 2 Are the front door and delivery cover closed properly? NO Close the door and cover.
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I. MAINTENANCE AND INSPECTION A. Image Adjustment Basic Procedure non-AE, copy density at 5 Pre-Check Start Execute 'U25' in user mode (wire cleaning) to clean the transfer charging wire. Clean the primary charging wire and the static eliminator. Checks on Solid Black Density Is the density of gray scale No. 1 too light? YES Turn the adjusting screws in the front and at the rear of the primary corona assembly counterclockwise to move the primary corona wire closer to the drum.
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Adjusting the Slit Plate Note: • Use only the slit plate at the front. • If you must replace the drum unit, be sure to put the slit plate back to the white marking. 1) Turn off the power switch, and disconnect the power plug from the power outlet. 2) Remove the copyboard glass, and move the No.1 mirror mount to the center, where work is facilitated. 3) Adjust the slit plate at the front by referring to the table below. 1 2 1 3 2 4 Rear slit plates (These plates cannot be adjusted.
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B. Points to Note for Scheduled Servicing Optical path Copyboard/Scanning system Part tool/solvent Copyboard glass Alcohol Original size sensor Blower blush Cleaning Cleaning Lens Dust-proofing glass Scanning lamp Lint-free paper Dry-wiping Reflecting plate No.1 to No.4 Blower blush. If dirt cannot be removed, use lint -free paper. Mirror cleaning tool Cleaning mirrors No.5 to No.
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CHAPTER 11 TROUBLESHOOTING II. STANDARDS AND ADJUSTMENTS A. Adjusting the Images 1 Adjusting the Image Leading Edge Margin [3] No. 305 Select [3] No. 305 (leading edge margin adjustment) in service mode, and make adjustments so that the image leading edge margin is 2.5 ±1.5 mm when the Test Sheet is copied in Direct. 2.5 ± 1.5 mm Figure 11-201 Reference: 2nd side of 2-sided copy: 2.5 ±2.0 mm Making Adjustments 1) Start [3] in service mode, and select No. 305 using the keypad.
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CHAPTER 11 TROUBLESHOOTING 2 Adjusting the Leading Edge Non-Image Width [3] No. 306 Select [3] No. 306 in service mode (leading edge non-image width adjustment), and make adjustments so that the leading edge non-image width is 2.0 ±1.0 mm when the Test Sheet is copied in Direct. The copier adjusts the leading edge non-image width in relation to the timing at which the blank shutter is closed.
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CHAPTER 11 TROUBLESHOOTING 3 Adjusting the Trailing Edge Non-Image Width [3] No. 307 Select [3] No. 307 in service mode (trailing edge non-image width adjustment), and make adjustments so that the trailing edge non-image width is 2.5 ±1.5 mm when the Test Sheet is copied in Direct. The copier adjusts the trailing edge non-image width in relation to the timing at which the blank shutter is closed.
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CHAPTER 11 TROUBLESHOOTING 4 Adjusting the Left-Right Registration Make adjustments so that the edges of the copy image and the copy are 0±1.5 mm from each other. (–) (+) 0 ± 1.5 mm 0 2 4 6 8 10 Figure 11-204 Reference: 2nd side of 2-sided copy: 0 ±2.0 mm a. Pick-Up from the Cassette Loosen the screw q, and adjust the position of the cassette hook plate w. w q Figure 11-205 11-10 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING b. Pick-Up from the Multifeeder Loosen the screw q, and adjust the position of the tray. q Figure 11-206 c. Pick-Up from the Paper Deck Remove the deck front cover, and loosen the screw q (deck left/right); then, adjust the position of the latch assembly in front/rear direction. q Figure 11-207 q Figure 11-208 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING 5 Adjusting the Image Left-Right Margin [3] No. 308 Select [3] No. 308 in service mode (left/right margin adjustment), and make adjustments so that the image left/right margin is 2.5 ±1.5 mm when the Test Sheet is copied in Direct. Be sure you have adjusted the left/right registration before performing the following steps. Reference: 2nd side of 2-sided copies: 2.5 ±2.0 mm Making Adjustments a. Margin Width 1) Select [3] in service mode, and select No. 308 using the keypad.
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CHAPTER 11 TROUBLESHOOTING b. Adjusting the Position of the Left/Right Margin Turn the screw, and make adjustments to suit the standards. • A clockwise turn moves the margin toward the front. • A counterclockwise turn moves the margin to the rear. • A full turn of the screw moves the image by about 1 mm. Adjusting screw Figure 11-210 Shutter Shifts the entire shutter Figure 11-211 Note: For both a. and b.
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CHAPTER 11 TROUBLESHOOTING 6 AE Adjustments If you have replaced the scanning lamp, AE sensor, or DC controller PCB, you must make the adjustments indicated by O; make the adjustments indicated by ∆ as necessary. First, execute [4] No. 402 in service mode (AE auto adjustment) for automatic adjustments. If the appropriate adjustments cannot be made after several tries (density indicator LED F5 and F9 flash), or if copies of the Test Sheet made in AE mode are too dark or too light, execute [3] No.
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CHAPTER 11 TROUBLESHOOTING • AE Auto Adjustment [4] No. 402 In AE auto adjustment, adjustments are made so that the intensity of the lamp in AE mode matches the AE sensor output of manual copy density 5 in reference to copies of an original (Test Sheet) on the copyboard glass. Making Adjustments 1) Place the Test sheet (NA-3) on the Copyboard, and close the copyboard cover. 2) Start [4] in service mode, and select No. 402 using the keypad. • The indicator indicates ‘402’. 3) Press the OK key.
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CHAPTER 11 TROUBLESHOOTING • Scanning Lamp Activation Voltage Auto Adjustment in AE Mode [3] No. 304 Making Adjustment 1) Start [3] in service mode, and select No. 304 using the keypad. • The indicator indicates ‘304’. 2) Press the OK key. • The indicator flashes the stored setting. 3) Using the keypad or the Zoom keys, change the settings according to the table below. • The indicator flashes the setting. 4) Press the OK key. • The new setting is stored. • The indicator stops flashing and remains on.
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CHAPTER 11 TROUBLESHOOTING • Newspaper Original DC Bias Adjustment in AE Mode [3] No. 303 After executing No. 402 and No. 304, make a copy of a newspaper. If the copy is too dark or too light, make the following adjustments: Making Adjustments 1) Start [3] in service mode, and select No. 303 using the keypad. • The indicator indicates ‘303’. 2) Press the OK key. • The indicator flashes the stored setting. 3) Using the keypad or the Zoom keys, change the setting according to the table below.
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CHAPTER 11 TROUBLESHOOTING 7 Adjusting the Developing Bias DC Component [3] No. 302 Make adjustments according to the Image Adjustment Basic Procedure. Making Adjustments 1) Start [3] in service mode, and select No. 302 using the keypad. • The indicator indicates ‘302’. 2) Press the OK key. • The indicator flashes the stored setting. 3) Using the keypad or the Zoom keys, change the setting. • The indicator flashes the setting. • To enter a negative setting, press the % key. 4) Press the OK key.
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CHAPTER 11 TROUBLESHOOTING 8 Adjusting the Horizontal Registration Paper Edge Sensor Position [3] No. 324 If a discrepancy is noted between front and rear margins on the second side of a twosided copy, make the following adjustments: Making Adjustments 1) Start [3] in service mode, and select No. 324 using the keypad. The indicator indicates ‘324’. 2) Press the OK key. • The indicator indicates the stored setting. 3) Using the keypad or the Zoom keys, change the setting.
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CHAPTER 11 TROUBLESHOOTING 9 Adjusting the Trailing Edge Margin for Pick-Up from the Multifeeder [3] No. 327 Make adjustments so that the trailing edge margin is 2.5 ±1.5 mm when free-size copying is executed using the multifeeder. 2.5 ± 1.5 mm Figure 11-212 Making Adjustments 1) Start [3] in service mode, and select No. 327 using keypad. • The indicator indicates ‘327’. 2) Press the OK key. • The indicator indicates the stored setting. 3) Using the keypad or the Zoom keys, change the setting.
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CHAPTER 11 TROUBLESHOOTING 10 Adjusting the Book Erasing Width [3] No. 326 Adjust the width that runs in the middle of an original in book erase mode. The Length of χ in Figure 11-213 may be changed. This mode does not allow changing the left/right edge of a book original. Book original χ Figure 11-213 Making adjustment 1) Start [3] in service mode, and select No. 326 using the keypad. • The indicator indicates ‘326’. 2) Press the OK key. • The indicator indicates the stored setting.
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CHAPTER 11 TROUBLESHOOTING B. Exposure System 1 Routing the Scanner Drive Cable Route the cable in the order indicated; then, adjust the tension of the cable and the position of the mirror. Note: Before starting the work, be sure to fix the No. 2 mirror mount temporarily in place to the front and rear side plates. q y e w Put the steel ball into the hole of the pully. r Wind eight times. o u =0 – 3mm t Fix in place temporarily. i Figure 11-214 11-22 COPYRIGHT © 1997 CANON INC.
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CHAPTER 11 TROUBLESHOOTING 2 Adjusting the Position of the Mirror (optical path length between No. 1 mirror and No. 2/No. 3 mirror) 1) Remove the screw used to temporarily fix the No.2 mirror mount in position (both front, rear). 2) Loosen the four screws on the mirror positioning tool (FY9-3002-000), and extend the two arms fully; then, tighten the screws (both front and rear). Reference: The mirror positioning tool is used in common with other models.
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CHAPTER 11 TROUBLESHOOTING 5) Mount the fixing of the scanner cable to the No.1 mirror mount (both front and rear) with screws w. w w (rear) Figure 11-217 w (front) Figure 11-218 11-24 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING 3 Adjusting the Tension of the Scanner Cable Loosen the binding screw, and align the tensioner plate to the line marked with a scribe in advance. Or, tighten the binding screw so that the wire spring and the hole in the side plate shown in Figure 11-219 is 0 to 3 mm when viewed from the front. Line drawn with a scribe Binding screw r=0 – 3mm Wire spring Tensioner plate Figure 11-219 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING 4 Adjusting the Tension of the Lens Drive Belt Move the lens motor support q and fit it in place so that the reading of the spring gauge is 1000 ± 50g when motor support q is pulled with a spring gauge in the direction of the arrow at the point A indicated in Figure 11-220. q A Figure 11-220 5 Cleaning the No.4 Mirror 1) Remove the copyboard glass and the lens hood. 2) Remove the screw q and the mirror guide plate w; then, clean the No.4 mirror.
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CHAPTER 11 TROUBLESHOOTING 6 a. 1) 2) 3) 4) 5) Cleaning the No.5/No.6 Mirror Removing the Mirror Cleaning Tool Remove the copyboard glass. Remove the lens hood. Remove the mirror guide plate. Move the lens stage in enlargement direction. Remove the screw q, and remove the mirror cleaning tool w. Use the tool for cleaning the No.5/No.6 mirror. q w Figure 11-222 b. Cleaning the No.5 Mirror 1) Remove the mirror cleaning tool. 2) As shown, put the mirror cleaning tool q against the No.
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CHAPTER 11 TROUBLESHOOTING c. 1) 2) 3) 4) Cleaning the No.6 Mirror Remove the mirror cleaning tool. Open the front door, and remove the developing assembly and the drum unit. Remove the dust-proofing glass. While keeping the mirror cleaning tool q (sides A and B) against the lens mount, move it in the direction of the arrow to clean. Side B Side A q Figure 11-224 d.
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CHAPTER 11 TROUBLESHOOTING C. Image Formation System 1 Orientation of the Scanning Lamp Install the scanning lamp so that the boss at the center (lamp q) faces in the direction of the arrow (mirror mount reverse direction), and the longer side is positioned so that the logo mark is at the front. Mirror mount reverse direction q Figure 11-226 Note: Do not touch the lamp assembly. 2 Position of the Blank Shutter Solenoid Adjust the position of the solenoid to that A is 7.7 ±0.
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CHAPTER 11 TROUBLESHOOTING 4 Routing the Charging Wire 7mm spring ring height adjusting block Figure 11-230 2mm spring ring height adjusting block Figure 11-231 Note: Keep the following in mind: • Make sure that the charging wire is free of bends or twists and its gold-plating has not peeled. • Make sure that the charging wire is free of slack. • Make sure that the charging wire is in the V-groove of the height-adjusting roll.
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CHAPTER 11 TROUBLESHOOTING 5 Stringing the Guide Wire The guide wire is 0.148 mm in diameter. When stringing it, be sure to follow the order indicated in the figure. A 3 2 1 4 5 6 7 8 9 12 10 11 13 B Figure 11-232 6 Adjusting the Height of the Charging Wire The height of the charging wire may be adjusted by turning the screw located behind the charging assembly. A full single turn of the screw raises or lowers the charging wire by about 0.7 mm.
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CHAPTER 11 TROUBLESHOOTING 7 Position of the Developing Assembly Magnetic Seal Attach the magnetic seal firmly in contact with the opening shown in Figure 11-234. Magnetic seal Opening (butting reference) Figure 11-234 Be sure that the correct magnetic seal is used; different seals are used for the front and the rear.
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CHAPTER 11 TROUBLESHOOTING D. Pick-Up/Feeding System 1 Orientation of the Pick-Up Roller When installing the pick-up roller q to the pick-up assembly, be sure that the round marking w on the rubber portion is toward the front of the copier. • Use the brass-colored collar at the front. • Use the silver-colored collar at the rear.
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CHAPTER 11 TROUBLESHOOTING 3 Orientation of the Feeding Roller When installing the feeding roller q to the pick-up assembly, be sure that the gear w on the feeding roller is at the rear of the copier. w q (front of copier) Figure 11-239 4 Adjusting the Pressure of the Separation Roller If double feeding or pick-up failure occurs during pick-up, adjust the position of the pressure spring of the separation roller: q If double feeding occurs, move the spring toward A.
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CHAPTER 11 TROUBLESHOOTING 5 Position of the Pick-Up Roller Solenoid (pick-up assembly; SL1, SL2) Install the solenoid so that the pick-up roller arm q shown in Figure 11-241 butts against the upper stay w when the plunger of the solenoid is pushed in. Butted. w q Figure 11-241 6 Orientation of the Multifeeder Pick-Up Roller When installing the multifeeder pick-up roller q, be sure that the side whose collar has a crossing w is toward the rear.
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CHAPTER 11 TROUBLESHOOTING 7 Position of the Pick-Up Guide Plate Cam (multifeeder assembly) Adjust the engagement of the 26T gear 1 and 26T gear 2 so that the paper guide plate and the paper guide plate cam are as shown in Figure 11-243 when the solenoid plate is in contact with the claw of the control ring.
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CHAPTER 11 TROUBLESHOOTING 9 Adjusting the Pressure of the Separation Pad (multifeeder assembly) If double feeding or pick-up failure occurs during pick-up, adjust the position of the pressure spring q of the separaiton pad. q If double feeding occurs, move the spring holder toward B. w If pick-up failure occurs, move the spring holder toward A. A B q Figure 11-245 10 Routing the Drive Belt Route the drive belt through the gears and rollers as shown in Figure 11-246.
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CHAPTER 11 TROUBLESHOOTING 11 Adjusting the Position of the Horizontal Registration Solenoid Move the position of the solenoid q so that the link w butts against the plate e when the plunger of the solenoid is pushed in. q w e Butted. Figure 11-247 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING E. Fixing System 1 Points to Note When Installing the Fixing Heater a. Do not touch the surface of the heater. b. One of the terminals (lead wire q) of the sub heater is a round terminal w. Both terminals of the main heater are fastons e.
The longer lead wire must be at the front of the copier. e q Figure 11-248 _{The round terminal must be at the rear of the copier. The fastons must be at the front of the copier. w q Figure 11-249 c.}
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CHAPTER 11 TROUBLESHOOTING 2 Adjusting the Nip (tightening the pressure adjusting nut) Use the bolt if the nip is not as indicated in Table 11-205. Feeding direction A3/11"×17" , c b Center of copy paper a Figure 11-251 Note: a and c represent points 10 mm from each edge of paper. Dimension b |a-c| Measurement Tracing paper (SM-1); 64/80g paper 5.5 ±0.5mm 0.
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CHAPTER 11 TROUBLESHOOTING 3) Start [4], and select No. 403 using the keypad. • The indicator indicates ‘403’. 4) Press the OK key. • The indicator indicates ‘NIP’. • Paper will be picked up from the multifeeder and delivered, enabling measurements as in Figure 11-251. Reference: Delivery stops after discharging the paper halfway; it will automatically resume about 10 sec to fully discharge the paper. 5) Measure the nip.
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CHAPTER 11 TROUBLESHOOTING F. Electrical System 1 Registering the Cassette/Multifeeder Paper Width Basic Setting [4] Perform the steps for the following: • If you have replaced the paper width detection VR (including the multifeeder) of the copier. • If you have adjusted the cassette front/rear registration.
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CHAPTER 11 TROUBLESHOOTING b. Multifeeder 1) Start [4] in service mode, and select No. 412 using the keypad. • The indicator indicates ‘412’. 2) Press the OK key. • The indicator indicates ‘A6’. 3) Set the manual guide plate of the multifeeder to A6R (105 mm). Guide Paper Guide m 5m 10 Figure 11-253 4) Press the OK key. • The indicator indicates ‘A4r’. 5) Set the manual guide plate to A4R (210 mm). 6) Press the OK key. • The indicator indicates ‘A4’. 7) Set the manual guide plate to A4 (297 mm).
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CHAPTER 11 TROUBLESHOOTING 2 Adjusting the Original Stop Position with the DF in Use [3] No. 325 START Place the AF Test Sheet (FY9-9081) on the original tray. Start the copier’s service mode [3]. Select ‘325’, and press the OK key. Press the OK key so that the Test Sheet will be stopped on the copyboard glass. Open the DF slowly. Is the standard met? YES NO Close the DF slowly, and press the OK key so that the Test Sheet will be discharged. Change the stop position setting; between -7 and +7.
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CHAPTER 11 TROUBLESHOOTING • A higer setting will move the original stop position to the left. (unit: 0.33 mm) Copyboard glass Copy paper Standard stop position = 0 ±1 mm Figure 11-255 3 Checking the Photointerrupters The copier photointerrupters may be checked using a convertional meter or its service mode. 1. Using a Meter 1) Set the meter range to 30VDC. 2) Connect the -probe of the meter to J101-8 (GND) on the DC controller PCB.
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CHAPTER 11 TROUBLESHOOTING • Copier + probe Name PS1 Service mode J113-2B Scanner home position sensor (SCHP) No.212 1-b PS2 J116-8A Cassette 1 paper sensor (C1PD) No.203 1-c PS3 J116-5A Cassette 1 lifter sensor (C1LTP) No.203 1-e PS4 J115-2B Cassette 2 paper sensor (C2PD) No.203 1-d PS5 J115-5B Cassette 2 lifter sensor (C2LTP) No.203 1-f PS6 J104-6B Multifeeder paper sensor (MFPD) No.203 1-b PS7 J116-2A Vertical path roller 1 paper sensor (PDP2*) No.
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CHAPTER 11 TROUBLESHOOTING + probe Name PS9 Service mode J117-13B Pre-registration paper sensor (PDP3) No.206 1-c PS10 J109-5A Separation sensor (PDP4*) No.206 1-d PS11 Delivery sensor (PDP5*) J109-4B No.206 1-e PS12 J109-7B Lower feeder inlet paper sensor (PDP6*) No.209 1-b PS13 J108-2 Lower feeder outlet paper sensor (PDP7) No.209 1-a PS14 J117-8B Horizontal registration paper sensor (PDP8) No.209 1-c COPYRIGHT © 1997 CANON INC.
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CHAPTER 11 TROUBLESHOOTING + probe Name Service mode PS15 J117-5B Horizontal registration roller home position sensor (HRHP) No.209 1-d PS16 J117-2B Horizontal registration paper edge sensor (HRPD) No.209 1-e PS17 J102-9A Copyboard cover open/closed sensor (CBCC) No.225 1-f PS18 J116-11A Right door sensor (RDC*) No.203 1-a PS19 J107-10 Lens home position sensor (LHP) No.225 2-a J114-12A PS20 Blank shutter home position sensor (BLHP) 11-50 Checks No.
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CHAPTER 11 TROUBLESHOOTING + probe Name PS101 Service mode J104-2A Cassette 1 paper length sensor 1 (C1SZ1) No.219 1-a PS102 J104-1A Cassette 1 paper length sensor 2 (C1SZ2) No.219 1-b PS103 J104-6A Cassette 2 paper length sensor 1 (C2SZ1) No.219 1-c PS104 J104-5A Cassette 2 paper length sensor 2 (C2SZ2) No.219 1-d COPYRIGHT © 1997 CANON INC. Checks Display indication Voltage reading on meter Set the cassette 1 to A4/LTR, and set it to the copier. When the cassette is present.
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CHAPTER 11 TROUBLESHOOTING • Paper deck pedestal + probe Name PS1 Service mode J107-6 Right door open sensor (RDOD*) No.233 1-e PS2 J107-9 Vertical path roller 3 paper sensor (PS2D) No.232 1-d PS3 J110-A2 Deck vertical path roller paper sensor (DVRPD) No.232 1-e PS4 J110-A5 Deck paper sensor (DPD) No.228 1-g PS5 J110-A11 Deck lifter position sensor (DEL) No.231 1-e PS6 J110-A8 Deck lifter upper limit sensor (DLP) No.231 1-g PS7 J110-B6 Deck open sensor (DEOP*) No.
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CHAPTER 11 TROUBLESHOOTING III. TROUBLESHOOTING IMAGE FAULTS A. Making Initial Checks 1. Installation Environment a. Be sure that the power supply provides the rated voltage (±10%; do not disconnect the power plug during the night.) b. Avoid areas which are subject to high/low temperature/humidity (near a water faucet, water boiler, humidifier) or dust. Avoid areas near sources of fire. c. Avoid areas subject to ammonium gas. d. Avoid areas subject to direct rays of the sun; as necessary, provide curtains.
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CHAPTER 11 TROUBLESHOOTING 7. Periodically Replaced Parts Check the parts against the scheduled servicing chart and the periodically replaced parts table. Replace the parts as necessary. 8. Others Bringing a machine from a cold to warm place (from a warehouse to the site of installation, for example) in winter can cause condensation to occur inside the machine, leading to various problems; for example, a. Condensation on the scanning system (glass, mirror, lens) can cause light images. b.
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CHAPTER 11 TROUBLESHOOTING C. Troubleshooting Faulty Images 1 The copy is too light. (halftone only) Cause Step Checks Action YES/NO 1 Perform the Image Adjustment Basic Procedure. Is the problem corrected? YES End. AE adjustment 2 Make a copy in AE mode. Is the copy too light? YES Execute AE adjustment. Developing assembly 3 Are the rolls of the developing assembly in firm contact with the drum during copying operation? NO Check the developing assembly locking lever.
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CHAPTER 11 TROUBLESHOOTING 2 The copy is too light. (solid black also) 3 The copy is too light. (entire copy, considerably) Cause Step YES/NO Checks Action 1 Perform the Image Adjustment Basic Procedure. Is the problem corrected? YES End. 2 Turn off the power switch in the middle of copying, and open the front door. At this time, is the toner image on the surface of the photosensitive drum before transfer more or less normal? NO Go to step 6.
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CHAPTER 11 TROUBLESHOOTING Cause Drum unit Step 10 High-voltage cord, highvoltage power supply PCB, DC controller PCB Checks Replace the drum unit. Is the problem corrected? YES/NO YES End. NO 1. Check the highvoltage cord for electrical continuity. 2. Check the highvoltage power supply PCB and the DC controller PCB 4 The copy has uneven density. (darker at front) 5 The copy has uneven density.
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CHAPTER 11 TROUBLESHOOTING 6 The copy is foggy. (entire copy) Cause Step YES/NO Checks Action 1 Perform the Image Adjustment Basic Procedure. Is the problem corrected? YES End. Scanner 2 Clean the scanning lamp, reflecting plate, side reflecting plate, mirror, lens, and dust-proofing glass. Is the problem corrected? YES End. Pre-exposure lamp 3 Is the pre-exposure lamp on during copying operation? NO See “The pre-exposure lamp fails to turn on.
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CHAPTER 11 TROUBLESHOOTING 7 The copy has vertical fogging. 8 The copy has black lines. (vertical, blurred, thick) Cause Step Checks Action YES/NO 1 Perform the Image Adjustment Basic Procedure. Is the problem corrected? YES End. Scanner 2 Clean the scanning lamp, reflecting plate, side reflecting plate, lens, mirror, and dust-proofing glass. Is the problem corrected? YES End. Pre-exposure lamp 3 Clean the pre-exposure lamp. Is the problem corrected? YES End.
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CHAPTER 11 TROUBLESHOOTING 9 The copy has black lines. (vertical, thin) Action Step Checks YES/NO 1 Press the Copy Start key, and turn off the power switch while the copy paper is in the feeding assembly. Does the copy image before the paper goes through the fixing assembly have black lines? YES Go to step 4. Lower transfer guide 2 Is the lower transfer guide soiled? YES Clean it.
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CHAPTER 11 TROUBLESHOOTING 10 The copy has white spots. (vertical) 11 The copy has white lines. (vertical) YES/NO Action Make a copy while keeping the copyboard cover open. Turn off the power switch while the copy paper is moving through the feeding assembly. At this time, does the copy image before the paper goes throughout the fixing assembly have white spots or white lines? YES 1. Clean the inlet guide of the fixing assembly. 2. Check to find out if the cleaning belt is taken up properly. 3.
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CHAPTER 11 TROUBLESHOOTING Cause Step Checks YES/NO Blank exposure assembly 8 Does the blank shutter solenoid operate where white spots or white lines occur in the copy image while the scanner is moving forward? NO Check the blank exposure assembly. Outside light 9 Is the photosensitive drum exposed to light from outside? YES Find out the cause of the infiltration of light. YES/NO Action 12 Action The copy has white spots.
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CHAPTER 11 TROUBLESHOOTING 13 The back of the copy is soiled. Cause Developing assembly Step Checks YES/NO 1 Turn off the power switch while the copy paper is moving through the feeding assembly. At this time, is the back of the copy paper soiled? YES Go to step 4. 2 Is the problem noted at intervals of about 3.3 cm horizontally? YES 1. Clean the registration roller and the lower transfer guide plate. 2. Check the developing assembly for leakage of toner.
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CHAPTER 11 TROUBLESHOOTING 14 The copy has faulty fixing. Cause Step Checks YES/NO Action Fixing roller (upper, lower) 1 Is the problem noted vertically? YES Check to find out if there are scratches on the fixing roller (upper, lower). Fixing heater (H1, H2) 2 Does the fixing heater (H1, H2) turn on immediately after poweron? NO See “The fixing heater fails to operate.
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CHAPTER 11 TROUBLESHOOTING 15 16 17 The copy has a displaced leading edge. Cause Step Checks YES/NO Action Original 1 Is the original placed properly? NO Place it properly. Copy paper 2 Is the copy paper of a type recommended by Canon? NO Try recommended paper; if the results are good, advise the user to use recommended paper.
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CHAPTER 11 TROUBLESHOOTING 18 The copy has a blurred image. Cause Step Checks YES/NO Action Scanner drive cable 1 Is the cable overlapping on the cable pulley while the scanner is moving? Is the cable too slack or taut? YES 1. Re-route the cable. 2. If the cable is twisted or frayed, replace it. Scanner rail 2 Is the scanner rail soiled? Is there foreign matter on the scanner rail? YES Clean the surface of the scanner rail.
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CHAPTER 11 TROUBLESHOOTING 19 The copy has horizontal fogging. Cause Step Checks Action YES/NO 1 Is the problem noted at the same location on all copies made in Direct? YES Go to step 5. Scanning lamp, lamp regulator 2 Does the scanning lamp flicker while the scanner is moving forward? YES Check the scanning lamp and the lamp regulator.
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CHAPTER 11 TROUBLESHOOTING 20 The copy has poor sharpness. Cause Step Checks YES/NO Action 1. Check the copyboard cover for warping. 2. Advise the user on how to place an original. • Clean the copyboard glass. • Install the copyboard glass. Check the lens drive assembly. Original 1 Is the original off the copyboard glass? YES Copyboard glass 2 Is the copyboard glass soiled with oil? Is the copyboard glass installed properly? YES Lens drive assembly 3 Turn off and then on the power switch.
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CHAPTER 11 TROUBLESHOOTING 21 The copy is blank. Cause Step Checks Action YES/NO Drum unit 1 Is the drum unit set? NO Set the drum unit. Drum drive assembly 2 Is the photosensitive drum rotating during copying operation? NO 1. Check to see if the photosensitive drum is rotating smoothly. 2. Check the drum drive assembly. Primary charging assembly 3 Is the primary charging assembly set properly? NO Set it properly. 4 Is the charging wire broken? YES Re-route the charging wire.
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CHAPTER 11 TROUBLESHOOTING 22 The copy is solid black. Cause High-voltage power supply PCB 11-72 Step Checks YES/NO Action 1 Is the scanning lamp on during copying operation? NO See “The scanning lamp fails to turn on.” 2 Is the pre-exposure lamp on during copying? NO See “The pre-exposure lamp fails to turn on.” 3 Replace the high-voltage power supply PCB. Is the problem corrected? YES End. NO Replace the drum unit. COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING IV. TROUBLESHOOTING MALFUNCTIONS A. Troubleshooting Malfunctions 1 E000 Step Checks YES/NO 1 Reset ‘E000’ using No.401 in service mode [4]. Open the front door and the delivery assembly to cool the fixing roller. Does the fixing heater turn on when the power switch is turned on once again? (Check by the eye. Be sure to turn off the power switch immediately after the check.) NO See “The fixing heater fails to operate.
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CHAPTER 11 TROUBLESHOOTING 2 E001 Cause Thermistor (TH1; short circuit) DC controller PCB 11-74 Action Step Checks YES/NO 1 Reset ‘E001’ using No.401 in service mode [4]. Open the front door and the delivery assembly to cool the fixing roller. Is ‘E001’ indicated immediately after the power switch is turned on once again? NO See “E004.” 2 Turn off the power switch, and disconnect J109 from the DC controlled PCB.
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CHAPTER 11 TROUBLESHOOTING 3 E002, E003 Action Step Checks YES/NO 1 Reset ‘E002’, ‘E003’ using No.401 in service mode [4]. Does any of the following apply when the power switch is turned on once again? • The fixing heater fails to operate. • E000 YES See the corresponding section. Thermistor (TH1; connector or open circuit) 2 Is the wiring from J109 on the DC controller PCB through the relay connector (J34) to the thermistor normal? NO Re-install the thermistor.
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CHAPTER 11 TROUBLESHOOTING 4 E004 Cause Step YES/NO Checks Action Fixing heater 1 Does the fixing heater turn on immediately after power-on? NO See “The fixing heater fails to operate.” SSR 2 Replace the SSR. Is the problem corrected? YES End. NO Replace the DC controller PCB. DC controller PCB 5 E005 Cause Cleaning belt Step Action 1 Is the cleaning belt of the fixing assembly taken up? YES Replace the cleaning belt. 2 Set No.619 in service mode [6] to ‘0’.
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CHAPTER 11 TROUBLESHOOTING 6 E010 Cause Main motor unit (M1; integrated unit of main motor and main motor driver PCB) Step Checks Action YES/NO 1 Does the main motor (M1) rotate until ‘E010’ turns on? NO Go to step 3. 2 Set the meter to the 12VDC range.
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CHAPTER 11 TROUBLESHOOTING 8 E031 Cause Step 1 Checks Does the option counter operate normally? DC controller PCB 9 YES/NO Action NO See “The option counter fails to operate.” YES Replace the DC controller PCB. E051 Cause YES/NO Checks Step Action 1 Does the horizontal registration motor (M5) rotate until ‘E051’ turns on? NO Go to step 3.
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CHAPTER 11 TROUBLESHOOTING 10 E053 Cause YES/NO Checks Step Action 1 Does the horizontal registration motor (M5) rotate until ‘E053’ turns on? NO Go to step 4. Horizontal registration solenoid (SL7) 2 Press the Copy Start key in the duplex mode. Does the horizontal registration solenoid turn on? NO Check the wiring; if nomal, replace the clutch.
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CHAPTER 11 TROUBLESHOOTING 11 E060 Action Step Checks YES/NO 1 Open the front door and the delivery assembly to cool the fixing roller. Does the wire cleaner operate when the power switch is turned on once again. YES Go to step 4. Cleaner motor (M11) 2 Set the meter to the 30VDC range, and connect its probes to J114-A1 (+) and J114-A2 (-) on the DC controller PCB. Is the voltage between the terminals about 12 V when the power switch is turned on? NO Replace the cleaner motor.
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CHAPTER 11 TROUBLESHOOTING 12 E202 Cause Scanner home position sensor (PS1) Step Checks Action 1 Is the scanner at home position when ‘E202’ is indicated? NO See “The scanner fails to move forward/in reverse.” 2 Is the scanner home position sensor normal? (See the instructions on how to check photointerrupers.) NO Check the wiring from the DC controller PCB to the sensor; if normal, replace the sensor. YES Replace the DC controller PCB.
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CHAPTER 11 TROUBLESHOOTING 14 E204 Cause Scanner home position sensor (PS1) Step Checks YES/NO 1 Does the scanner move forward from when the Copy Start key is pressed to when ‘E204’ is indicated? NO See “The scanner fails to move forward/in reverse.” 2 Is the scanner home position sensor normal? (See the instructions on how to check photointerrupers.) NO Check the wiring from the DC controller PCB to the sensor; if normal, replace the sensor. YES Replace the DC controller PCB.
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CHAPTER 11 TROUBLESHOOTING 17 E224 Cause Blank shutter home position sensor (PS20) Step Checks Turn on the power switch. Does the blank shutter (slide shutter) move? NO See “The blank shutter fails to move.” 2 Is the blank shutter home position sensor normal? (See the instructions on how to check photointerrupers.) NO Check the wiring from the DC controller PCB to the sensor; if normal, replace the sensor. YES Replace the DC controller PCB.
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CHAPTER 11 TROUBLESHOOTING 20 E712 Cause Step Checks Action YES/NO Malfunction 1 Turn off and then on the power switch. Is the problem corrected? YES End. Connector 2 Is the lattice connector of the DF connected securely to the connector J732 of the copier? NO Re-connect it. DF controller PCB 3 Replace the DC controller PCB. Is the problem corrected? YES End. NO Replace the DC controller PCB.
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CHAPTER 11 TROUBLESHOOTING 22 E800 Cause Step Checks Action YES/NO Malfunction 1 Turn off and then on the power switch. Is the problem corrected? YES End. J56 2 Is the relay connector J56 directly under the power switch connected securely? NO Re-connect it. Power switch (SW1) 3 Disconnect the relay connector J56. Set the meter to the x1KΩ range, and measure the resistance between J56-1 and J56-2 on the connector side of the power switch. Is it about 400 Ω? NO Replace the power switch.
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CHAPTER 11 TROUBLESHOOTING 23 AC power is absent. Cause Action Step Checks YES/NO Error code 1 Does an error code turn on when the power switch is turned on, and does the power switch turn off in 20 sec? YES See the descriptions for the corresponding error code. Power plug 2 Is the power plug connected securely? NO Connect the power plug. Covers 3 Are the front door and the delivery cover closed securely? NO Close the door or the cover.
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CHAPTER 11 TROUBLESHOOTING 24 DC power is absent. Cause Step Checks Action YES/NO AC power supply 1 Is AC power present between J631-1 and J631-4 and J631-2 and J631-5 on the DC power supply PCB? NO See “AC power is absent.” Fuse 2 Has the fuse on the DC power supply PCB blown? YES Remove the cause, and replace the DC power supply PCB. 3 Turn off the power switch, and disconnect the power plug. Connect the power plug in about 1 min, and turn on the switch. Is DC power present? YES End.
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CHAPTER 11 TROUBLESHOOTING Jack No. Pin No. Output J632 1 2 3 4 5 6 7 8 24VB 24VA 12V 5V GND GND GND GND To J101 on DC controller PCB. J633 1 2 3 4 5 6 7 24VB 12V 5V N.C. GND GND GND To J952 on motor driver 2 PCB. 1 2 3 4 5 6 24VB 24VB 5V GND GND GND To J201 on motor driver 1 PCB. 1 2 3 24VB FM5LOCK GND J634 J635 Remarks To J501 on main motor. To DF. To pedestal. To sorter. To power supply PCB cooling fan. (Signal line) Table 11-401 11-88 COPYRIGHT © 1997 CANON INC.
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CHAPTER 11 TROUBLESHOOTING 25 The blank shutter fails to move. Cause Checks Step YES/NO Action Blank shutter cable 1 Is the blank shutter cable routed properly? NO Re-route the blank shutter cable. Blank shutter motor (M8) 2 Turn off the power switch, and disconnect the relay connector J26. NO Replace the blank shutter motor. YES End. NO Replace the DC controller PCB. Set the meter to the x1KΩ range, and measure the resistance between the terminals of the motor shown below.
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CHAPTER 11 TROUBLESHOOTING 27 Pick-up fails. (cassette) Cause Checks Step YES/NO Action 1 Does the Add Paper indicator remain on? YES See “The Add Paper indicator fails to turn off.” 2 Does the lifter drop when the cassette is slid out, and does the lifter motor rotate when the cassette is slid in? NO See “The lifter fails to move up.” Belt 3 Is the belt for drive attached properly? NO Re-attach the belt. Right door 4 Is the right door fully closed? NO Close the door.
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CHAPTER 11 TROUBLESHOOTING 28 The lifter fails to move up. (cassette) Cause Checks Step YES/NO Action Cassette size detecting units 1 Is the cassette size LED on the control panel on? NO Check the cassette size detecting units. Gear, lever 2 Remove the cassette, and move up the lifter by hand. Does it move smoothly? NO Remove the pick-up assembly, and check the gear and the lever.
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CHAPTER 11 TROUBLESHOOTING 29 Pick-up fails. (multifeeder) Cause Step Checks YES/NO Action 1 Does the Add Paper indicator remain on? YES See “The Add Paper indicator fails to turn off.” Multifeeder pick-up clutch (CL4) 2 Select the multifeeder, and press the Copy Start key. Does the multifeeder pick-up roller rotate? YES Check the wiring from the DC controller PCB to the clutch; if normal, replace the clutch.
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CHAPTER 11 TROUBLESHOOTING 30 The scanner fails to move forward/in reverse. Cause Step Checks YES/NO Cable 1 Is the cable for the scanner routed properly? NO Re-route the cable. Foreign matter 2 Is the scanner rail free of dirt, and does the scanner move smoothly when pushed by hand? NO Check the surface of the scanner rail for dirt and foreign matter and anything which comes into contact with the scanner.
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CHAPTER 11 TROUBLESHOOTING 31 The registration roller fails to rotate. Cause YES/NO Checks Step Action Belt, gear, coupling 1 Is the drive of the main motor transmitted to the registration roller through the belt, gear, and coupling? NO Re-install the belt, gear, and coupling. Pre-registration sensor (PS9), horizontal registration paper sensor (PS14) 2 Are the pre-registration sensor and the horizontal registration paper sensor normal? (See the instructions on how to check photointerrupters.
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CHAPTER 11 TROUBLESHOOTING 32 The scanning lamp fails to turn on. Cause Step Checks YES/NO Scanning lamp (LA1) 1 Turn off the power switch, and disconnect the power plug. Is the lamp installed properly? NO Re-install the lamp. Fuse (FU1) 2 Set the meter to the x1KΩ range, and connect its probes to both terminals of the fuse. Does the index of the meter swing? NO Replace the fuse.
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CHAPTER 11 TROUBLESHOOTING 33 The pre-exposure lamp fails to turn on. Cause Pre-exposure lamp (LA2) Step 1 Checks YES/NO Replace the pre-exposure lamp. Does it turn on normally? DC controller PCB 34 Action YES End. NO Check the wiring from the DC controller PCB to the pre-exposure lamp; if normal, replace the DC controller PCB. The hopper motor fails to rotate. Step Checks YES/NO Action 1 Execute ‘409’ in service mode [4].
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CHAPTER 11 TROUBLESHOOTING 35 The lens fails to move. Cause Step Checks YES/NO Action Rail 1 Turn off the power switch, and move the pulley of the lens motor by hand. Does the lens move smoothly? NO Check the rail for foreign matter and dirt. Drive belt 2 Is the drive belt attached normally? NO Re-attach it.
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CHAPTER 11 TROUBLESHOOTING 36 The fixing heater fails to operate. Cause Action Step Checks YES/NO 1 Turn off the power switch, and open the delivery assembly. Remove the connector cover, and disconnect J3 (3-pin). Set the meter to the x1KΩ range, and measure the resistance between J3-1 and J3-3 (main heater) and between J3-1 and J3-2 (sub heater) on the fixing assembly side. Does the index of the meter swing? YES Go to step 5. Thermal switch (TSW1) 2 Remove the fixing assembly.
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CHAPTER 11 TROUBLESHOOTING 37 The total copy counter fails to operate. Cause Step Counter (CNT1) 1 DC controller PCB 2 YES/NO Action Turn off the power switch, and disconnect the connector J61 of the counter. Set the meter to the x1KΩ range, and measure the resistance between J61-1 and J61-2 on the counter side. Is it about 480Ω? NO Check the wiring from the DC controller PCB to the counter; if normal, replace the counter. Connect the connector J61, and turn on the power switch.
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CHAPTER 11 TROUBLESHOOTING 39 The Add Paper indicator fails to turn off. Cause Cassette Cassette 1 paper sensor (PS2) Cassette 2 paper sensor (PS4) Step Checks YES/NO 1 Are the cassettes set properly? NO Set the cassettes properly. 2 Does the lifter move up? NO See “The lifter fails to move up.” 3 Is the paper sensor normal? (See the instructions on how to check photointerrupers.) NO Check the wiring from the DC controller PCB to the sensor; if normal, replace the sensor.
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CHAPTER 11 TROUBLESHOOTING 41 The Add Toner indicator fails to turn off. Cause Toner sensor (TS1) Step Checks Action 1 Is toner present around the toner sensor (TS1) at the front of the developing assembly? NO Go to step 3. 2 Replace the toner sensor. Is the problem corrected? YES End. NO Check the wiring from the DC controller PCB to the toner sensor; if normal, replace the DC controller PCB. NO Check the screw, gear, and stirring rod to see if they are installed properly.
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CHAPTER 11 TROUBLESHOOTING B. Troubleshooting Malfunctions in the Pedestal 1 E901 Cause Step Checks YES/NO Pedestal motor (M1) 1 Set the meter to the 100VDC range, and measure the voltage between J109-1 (+; PEDMD) and J109-4 (-) on the pedestal controller PCB. Does the voltage change to about 5 V when WMUPR starts after the power switch has been turned on? YES Replace the pedestal motor. Pedestal controller PCB 2 Replace the pedestal controller PCB. Is the problem corrected? YES End.
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CHAPTER 11 TROUBLESHOOTING 2 Pick-up fails. (pedestal) Cause Step Checks YES/NO Action 1 Does the Add Paper indicator remain on? YES See “The Add Paper indicator fails to turn off.” Belt 2 Is the belt for drive attached correctly? NO Re-attach the belt. Pedestal right door 3 Is the right door of the pedestal fully closed? NO Close the door. 4 Is the right door of the pedestal locking the deck vertical path roller and the vertical path roller 3 in place? NO Check the locking spring.
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CHAPTER 11 TROUBLESHOOTING Cause Sensor Pick-up assembly 11-104 Step 11 Checks Find out which sensor has detected the jam in service mode ([1] No.109). Is the sensor normal? (See the descriptions on service mode and instructions on how to check photointerrupters.) COPYRIGHT © 1997 CANON INC. YES/NO Action NO Check the wiring and the lever; if normal, replace the sensor. YES Remove the pick-up assembly, and check the spring and gear. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING 3 The lifter fails to move up. (pedestal) Cause Step Checks Action YES/N Deck 1 Is the deck set properly? NO Re-set it. Lifter cable 2 Is the lifter cable routed properly? NO Re-route it. Spring, lever 3 Push down the pick-up roller releasing lever with a finger. Does the pick-up roller move down? NO Remove the pick-up assembly, and check the spring and the lever. Pedestal motor (M1) 4 Does the pedestal motor rotate? YES Go to step 7.
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CHAPTER 11 TROUBLESHOOTING 4 The Add Paper indicator fails to turn off. (pedestal) Cause Deck Paper sensor Step Checks Action 1 Is the deck set properly? NO Set the deck properly. 2 Does the lifter move up? NO See “The lifter fails to move up.” 3 Are the following sensors normal? PS4: Deck paper sensor (See the instructions on how to check photointerrupers.) NO Check the wiring from the pedestal to the sensor; if normal, replace the faulty sensor.
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CHAPTER 11 TROUBLESHOOTING V. TROUBLESHOOTING FEEDING FAULTS A. Copy Paper Jams In the copier, jams tend to occur in any of the following locations: q Pick-up assembly w Separation/feeding assembly e Fixing/delivery assembly r Cleaning assembly t Lower feeding assembly The troubleshooting procedures that follow are therefore organized according to location; the location as well as the nature of a jam occurring in the copier may be checked in service mode ([1] No.109).
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CHAPTER 11 TROUBLESHOOTING 1 Pick-up assembly Step Checks YES/NO 1 Does it occur when the cassette is used? NO Go to step 8. Cassette 2 Is the cassette set properly? NO Set it properly. Copy paper 3 Try a different cassette. Is the problem corrected? YES Check the inside of the cassette for foreign matter. 4 Is the copy paper curled or wavy? YES Replace the copy paper; advise the user on the correct method of storage. 5 Try paper of a type recommended by Canon.
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CHAPTER 11 TROUBLESHOOTING 2 Separation/feeding assembly Cause Step Checks YES/NO Action Separation roller 1 Is the separation roller of each cassette deformed or worn? YES Replace the deformed or worn separation roller. Feeding roller 2 Is the feeding roller of each cassette deformed or worn? YES Replace the deformed or worn feeding roller. Registration roller drive assembly 3 Does the registration roller operate normally? NO See “The registration roller fails to rotate.
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CHAPTER 11 TROUBLESHOOTING 3 Fixing/delivery assembly Cause YES/NO Checks Action 1 Are the separation claws worn or deformed? YES 1. Replace the separation claws. 2. If dirt is found, clean it with solvent. Upper/lower fixing roller 2 Is the upper/lower fixing roller deformed or scratched? YES Replace the roller. Paper guide 3 Is the paper guide soiled with toner? YES Clean it with solvent. Nip 4 Is the lower roller pressure (nip) within standard? NO Adjust it.
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CHAPTER 11 TROUBLESHOOTING 5 Lower feeding assembly Cause Step Checks YES/NO Action Lower feeder inlet roller 1 Is the lower feeder inlet roller deformed or worn? YES Replace the lower feeder inlet roller. Set-back roller 1/2 2 Is the set-back roller 1/2 deformed or worn? YES Replace the set-back roller 1/2.
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CHAPTER 11 TROUBLESHOOTING B. Troubleshooting Feeding Faults 1 Double feeding Cause Separation roller Step 1 YES/NO Checks Is the separation roller deformed or worn? Spring 2 Action YES Replace the separation roller. NO Replace the spring used to pull the separation roller. Change the hooking position of the spring. YES/NO Action Wrinkling Cause Step Checks 1 Turn off the power while copy paper is moving through the feeding assembly.
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CHAPTER 11 TROUBLESHOOTING A. Sensors PS6 TS1 PS18 TH1 PS7 PS2 PS8 PS4 PS3 PS11 PS5 PS15 PS20 FU1 PS16 SVR3 PS9 PS17 PS14 PS10 PS1 PS19 PS13 TSW1 PS12 SVR1 SVR2 PS102 PS101 PS104 PS103 Figure 11-601 11-114 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING Name Notation Function Photointerrupter PS1 PS2 PS3 PS4 PS5 PS6 PS7 PS8 PS9 PS10 PS11 PS12 PS13 PS14 PS15 PS16 PS17 PS18 PS19 PS20 PS101 PS102 PS103 PS104 Scanner home position detection Cassette 1 paper detection Cassette 1 lifter detection Cassette 2 paper detection Cassette 2 lifter detection Multifeeder paper detection Vertical path roller 1 paper detection Vertical path roller 2 paper detection Pre-registration paper detection Separation detection Delivery detection Low
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CHAPTER 11 TROUBLESHOOTING B. Switches, clutches, and solenoids CL4 SL6 SL3 MSW2 SW1 CL5 CL2 SL1 DS1 SL2 CL6 SL7 CL3 MSW1 CNT1 CNT2 SSW SL5 CL1 SL4 CL8 CL7 CB1 SSR Figure 11-602 11-116 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING Symbol C B CNT Name Function Notation Switch SW1 MSW1 MSW2 SSW Power switch Wire cleaner home position detection Wire cleaner rear position detection Service switch Push switch DSW1 Door switch Circuit breaker Counter CB1 CNT1 AC power line overcurrent detection Total copy counter C L Clutch CL1 CL2 CL3 CL4 CL5 CL6 CL7 CL8 Registration clutch Cassette 1 pick-up clutch Cassette 2 pick-up clutch Multifeeder pick-up clutch Vertical path roller 1 clutch Vertical
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CHAPTER 11 TROUBLESHOOTING C. Heaters, lamps, and motors LA2 LA1 M8 M3 H4 H1 H2 M5 M9 M10 FM2 H3 H3 M2 FM3 M11 FM1 FM4 M1 M6 NF1 M7 FM5 Figure 11-603 11-118 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING Symbol M N F Name Function Notation Lamp LA1 LA2 Scanning lamp Pre-exposure lamp Heater H1 H2 H3 Fixing main heater Fixing sub heater Drum heater Motor M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 Main motor Scanning motor Lens motor Hopper motor Horizontal registration motor Delivery motor Lower feeder motor Blank shutter motor Cassette 1 lifter motor Cassette 2 lifter motor Cleaner motor Fan motor FM1 FM2 FM3 FM4 FM5 Scanner cooling fan Exhaust fan 1 Exhaust fan 2 Feedin
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CHAPTER 11 TROUBLESHOOTING Ref. Name Description q w e r t y u i o AE sensor Original size detection Original size detection Original size detection Original size detection Original size detection DC controller DC power supply Motor driver 1 !0 Motor driver 2 !1 HVT !2 !3 Lamp regulator Control panel COPYRIGHT © 1997 CANON INC.
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CHAPTER 11 TROUBLESHOOTING Function Name Notation Photointerrupter PS1 PS2 PS3 PS4 PS5 PS6 PS7 Right door open/closed detection Vertical path roller 3 paper detection Deck vertical path roller paper detection Deck paper detection Deck lifter position detection Deck lifter upper limit detection Deck open/closed detection M Motor M1 Pedestal motor C L Clutch CL1 CL2 CL3 CL4 Vertical path roller 3 drive clutch Deck pick-up clutch Deck vertical path roller drive clutch Deck lifter drive clutch S
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CHAPTER 11 TROUBLESHOOTING F. Variable Resistors, Light-Emitting Diodes, and Check Pins by PCB Of the variable resistors (VR), light-emitting diodes (LED), and check pins found, those that may be used in the field are discussed: Note: 1. Some LEDs emit dim light because of leak current when OFF; this is a normal condition and should be kept in mind. 2.VRs that may be used in the field . . . . . . . . . VRs that must not be used in the field . . . . .
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1 J105 1. DC Controls PCB J115 SW101-1 SW101-2 SW101-3 SW101-4 A8 B1 COPYRIGHT © 1997 CANON INC. A1 B8 6 B8 B1 1 A1 A8 J106 SW101 4R4E AB-configuration OFF OFF 10 J107 1 5 J108 IC 103 VR101 IC 124 Figure 11-606 4R3E Inch-configuration ON ON OFF OFF 11-125 CHAPTER 11 TROUBLESHOOTING 4R4E/ 4R3E AB/Inch-configuration ON OFF CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING 2. HVT Dp Gr Si 1 J401 13 Pr Si FB VR403 VR301 VR101 VR302 Figure 11-607 3. Lamp Regulator PCB 2 1 J601 3 J603 1 1 J602 6 Figure 11-608 11-126 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING 4. Motor driver 1 PCB 8 1 J206 1 J204 13 6 J205 1 1 3 J203 4 14 1 1 J202 J201 Figure 11-609 5. Motor driver 2 PCB 1 11 J953 1 J951 14 1 12 J954 1 6 J952 Figure 11-610 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING J101 1 3 5 1 J109 6. Pedestal controller PCB (Paper deck pedestal) B14 J102 J108 1 2 10 1 J107 1 8 IC101 B1 J110 A1 A14 Figure 11-611 11-128 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING VII. SERVICE MODE A. Outline The copier’s service mode consists of the following six: Mode Description [1] Control/display mode [2] I/O display mode [3] Adjustment mode [4] Function mode [5] Optional settings mode [6] Counter mode Table 11-701 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING B. Using Service Mode 1. Starting Service Mode 1) Open the front door, and insert the door switch actuator into the door switch assembly. • To make checks in ‘I/O display mode’, for example, make the appropriate copying mode settings before starting service mode. 2) Press the service mode switch (SSW) with a hex key. • The display indicates ‘[1]’. • A press on the Reset key ends service mode.
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CHAPTER 11 TROUBLESHOOTING C. Using Adjustment Mode and Optional Setting Mode Adjustment mode and the optional setting mode are used to simulate the operations activated by the conventional variable resistors and switches by storing the settings made on the control panel in the RAM on the DC controller PCB. Figure 11-702 is the label attached behind the copier’s front door. At the factory, each copier is adjusted, and the adjustment values are recorded on the label.
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CHAPTER 11 TROUBLESHOOTING D. Control/Display Mode [1] To start control/display mode, press ‘1’ (keypad) and the OK key in sequence. To select an item, press the number (keypad) and the OK key in sequence. To delete an item, press the Clear key. • A press on the Copy Start key while the service mode description is being shown starts copying operation. No. • Remarks Description 101 Indicates the version of the master ROM (IC116).
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CHAPTER 11 TROUBLESHOOTING No. 109 Displaying the Jam History The copier retains a history of as many 40 jams (most recent). 1) While the display indicates ‘109’, press the OK key. • The display shows the jam history number. • The display indicates ‘-1’. 2) Using the Zoom key (+) / (-), select the jam history number (1 through 40, a higher number means an older jam); then, press the OK key. • The display shows jam location.
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CHAPTER 11 TROUBLESHOOTING For example, if the 13th most recent jam was a pre-registration roller delay jam picked up from the copier’s cassette 1 (copy paper size of A4, soft count of 63021). Enter ‘13’ using the keypad. The display shows jam location. (0: copier) (Table 11-702) The display shows the jam code. (3: pre-registration delay jam) (Table 11-703, 704, 705, 706) The display show the pick-up location. (1: cassette 1) (Table 11-707) The display shows the pick-up soft count by pick-up location.
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CHAPTER 11 TROUBLESHOOTING • Jam Location 0 1 2 3 Copier DF Sorter Pedestal Table 11-702 • Details of Copier Jam Code Type of jam Notation Sensor 1 Vertical path 2 delay jam (Cassette 2 pick-up delay) PS8 2 Vertical path 1 delay jam (Cassette 1 pick-up delay) PS7 3 Pre-registration roller delay jam PS9 4 Separation delay jam PS10 5 Delivery delay jam PS11 6 Lower feeder inlet delay jam PS12 7 Lower feeder outlet delay jam PS13 8 Horizontal registration delay jam PS14 9 Verti
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CHAPTER 11 TROUBLESHOOTING • Details of DF Jam Codes Notation Type of jam Model 01 Original pulled out during pick-up RDF/ADF 02 Pick-up sensor delay jam RDF/ADF 03 Registration sensor delay jam RDF/ADF 05 Registration sensor stationary jam ADF 06 Registration sensor double feeding RDF/ADF 08 Registration sensor error (failing to detect leading edge of original during pick-up) RDF 09 Registration sensor failure ADF 08 Reversal sensor delay jam 1 RDF 11 Reversal sensor stationar
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CHAPTER 11 TROUBLESHOOTING • Details of Pedestal Jam Codes Notation 33 Type of jam Sensor PS2/PS3 Deck pick-up delay Deck pick-up timing Table 11-706 • Pick - Up Location 1 2 3 8 Cassette 1 Cassette 2 Paper deck Multifeeder assembly Table 11-707 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING • Paper size Original size (unit: mm) 17 A5 148 × 210 1 B5 182 × 257 3 A4 210 × 297 4 B5R 257 × 182 6 A4R 297 × 210 2 FOOLSCAP 330 × 216 5 B4 364 × 257 23 COMPUTER 381 × 279 7 A3 420 × 297 9 STMT 140 × 216 11 LTR 216 × 279 14 LTRR 279 × 216 2 FOOLSCAP 330 × 216 13 LGL 356 × 216 23 COMPUTER 381 × 279 15 11” × 17” 432 × 279 Notation Table 11-708 11-138 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING Description No. Remarks 110 Indicates the results of the copier’s self diagnosis. The display can show as many as three previous error histories. Select, for example, ‘1 (The indicator indicates ‘-1’, ‘-2’, and ‘-3’ using the zoom (+)/(-) key and then the OK key to find out the codes for the first, second, and third most recent errors. 111 Indicates the results of the DF’s self diagnosis. Same as above. 112 Indicates the results of the sorter’s self diagnosis.
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CHAPTER 11 TROUBLESHOOTING • Details of Copier Alarm Codes Notation Description 01 Cassette 1 lifter fails to move up. 02 Cassette 2 lifter fails to move up. Table 11-709 • Details of DF Alarm Codes Notation Description 01 The re-circulating lever has swung idly. 02 The original end sensor do not detect an original. 03 Separation has failed during original pick-up. 04 The original has moved askew during original pick-up.
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CHAPTER 11 TROUBLESHOOTING • Details of Pedestal Alarm Codes Notation 01 Description The deck lifter fails to move up. Table 11-712 • Details of E002 (detection temperature) Service mode otation Description temperature 1 ~ 40 2 40 ~ 75 3 75 ~ 100 4 100 ~ 120 5 120 ~ 140 6 140 ~ 160 7 160 ~ 170 8 170 ~ 180 9 180 ~ 185 10 185 ~ 190 Table 11-713 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING Remarks Description No. 119 Indicates the output value of the paper width sensor of the multifeeder. 0 to 255 120 Indicates the paper width of the multifeeder. unit: mm 121 Indicates the output value of the paper width sensor of the cassette 1. 0 to 255 122 Indicates the output value of the paper length sensor of the cassette 1.
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CHAPTER 11 TROUBLESHOOTING No. Description Remarks 133 Indicates the output of the original size sensors 1, 2, 3, and 4. When the original size sensor detects an original, some LED lamps of the display turn on. (See Figure11-703.) 134 Indicates the keys of the control panel. (See p.11-148.) 135 Indicates the original size detected by the DF. A code is indicated to represent the original size detected by the DF. (See Table 11-715, 716.) 136 Indicates the activation voltage of the scanning lamp.
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CHAPTER 11 TROUBLESHOOTING • No. 134 Control panel’s key check 1) Select No. 134, and press the OK key. • The indicator indicates ‘–––’ 2) After pressing all the keys on the control panel one by one, press the OK key. • When it is confirmed that all the keys have been pressed, the indication will be ‘ ’. • If there is any key which has not confirmed to be pressed, the code provided in the Table 11-714 will be indicated.
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CHAPTER 11 TROUBLESHOOTING Code Code Key Key 001 User mode key 021 Zoom key (+) 002 OK key 022 Zoom key (-) 003 Page Separate key 023 Reset key 004 Image Compose key 024 ID key 005 Odd/Even key 025 Keypad 1 006 Mode Memory key 026 Keypad 2 007 Bind Margin key 027 Keypad 3 008 Frame Erase key 028 Keypad 4 009 Mix key 029 Keypad 5 010 Sorter key 030 Keypad 6 011 Two-Sided key 031 Keypad 7 012 Copy Density key (darker) 032 Keypad 8 013 AE key 033 Keypad 9
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CHAPTER 11 TROUBLESHOOTING q Size Detection (AB-configuration feeding direction only, no default) Original size (unit: mm) 17 A5 148 × 210 1 B5 182 × 257 3 A4 210 × 297 4 B5R 257 × 182 6 A4R 297 × 210 2 FOOLSCAP 330 × 216 5 B4 364 × 257 23 COMPUTER 381 × 279 7 A3 420 × 297 Notation Table 11-715 w Size Detection (Inch-configuration feeding direction only, no default) Original size (unit: mm) 9 STMT 140 × 216 11 LTR 216 × 279 14 LTRR 279 × 216 2 FOOLSCAP 330 × 216
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CHAPTER 11 TROUBLESHOOTING E. I/O Display Mode [2] To start I/O display mode, press ‘2’ (keypad) and the OK key in sequence. To select an item, press the number (keypad) and the OK key in sequence. To delete an item, press the Clear key. • A press on the Copy Start key while the service mode description is being shown starts copying operation. No.
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CHAPTER 11 TROUBLESHOOTING • PIO No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING • Master No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING • IPC No.
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CHAPTER 11 TROUBLESHOOTING • Slave No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING • PAPER DECK PEDESTAL - M1 No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING • ADF - E1 No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING No. LED Description Signal Jack Remarks (adress) 240 (AD1) – Registration sensor (S2) signal PDP3 J5-15 241 (AD2) – Origianal sensor (S1) signal DEP J10-3 242 (AD3) – 243 (AD4) – Pick-up sensor (S3) signal PDP1 J5-4 244 (AD5) – Delivery sensor (S4) signal PDP2 J5-7 245 (AD6) – 246 (AD7) – Open/closed sensor (S8) signal ADFC J13-2 247 (AD8) – Top cover sensor (S7) signal UPCC2 J10-6 11-164 – – COPYRIGHT © 1997 CANON INC.
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CHAPTER 11 TROUBLESHOOTING • RDF-F1 No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING • Sorter-E1 No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING • Stapler Sorter - D2 No.
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CHAPTER 11 TROUBLESHOOTING No.
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CHAPTER 11 TROUBLESHOOTING F. Adjustment Mode [3] To start adjustment mode, press ‘3’ (keypad) and the OK key in sequence. To select an item, press the number (keypad) and the OK key in sequence. To change the setting, press the number (keypad) or the zoom (+)/(-) key and the OK key in sequence. • Press the % key to enter a negative number. To delete an item, press the Clear key. • A press on the Copy Start key while the service mode description is being shown starts copying operation. No.
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CHAPTER 11 TROUBLESHOOTING No. Description Settings Remarks 314 Cassette 1 paper width detection reference point 1 0~255 Use the keypad. 315 Cassette 1 paper width detection reference point 2 0~255 Use the keypad. 316 Cassette 2 paper width detection reference point 1 0~255 Use the keypad. 317 Cassette 2 paper width detection reference point 2 0~255 Use the keypad.
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CHAPTER 11 TROUBLESHOOTING G. Function Mode [4] To start function mode, press ‘4’ (keypad) and the OK key in sequence. To select an item, press the number (keypad). • To exeute the mode, press the OK key. Note: You must make sure that the copier is in standby state before executing any of the items. No. Description Remarks 401 Use it to reset E000, E001, E002, E003, or E800. To reset an error code, press the OK key. A press on the OK key will initialize the code and turn off the power switch.
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CHAPTER 11 TROUBLESHOOTING Remarks Description No. 410 Use it to check the operation of the blank shutter motor. Place two sheets of A4 copy paper on the multifeeder tray, and open the copyboard cover. Press the OK key so that the blank shutter will shift and two copies will be made. (The margin changes from A6R to A4R.) 411 Use it to initialize the data of the RAM on the DC controller PCB. Press the OK key and then the user mode key to initialize the RAM.
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CHAPTER 11 TROUBLESHOOTING H. Optional Settings Mode [5] To To To To • No. 501 502 503 504 505 start optional settings mode, press ‘5’ (keypad) and the OK key in sequence. select an item, press the number (keypad) and the OK key in sequence. change the setting, press the Zoom (+) / (-) key and the OK key. delete an item, press the Clear key. A press on the Copy Start key while the service mode description is being shown starts copying operation.
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CHAPTER 11 TROUBLESHOOTING No. 511 Function Use it to turn on/off the auto energy saver function. 512 Use it to switch the copier’s operation mode between AB-configuration and Inch-configuration.*1 Remarks on: Enable auto energy saver function. off: Disable auto energy saver function. You have to select the copi- -1: AB-configuration er’s operation mode when -0: Inch-configuration the AB/Inch-configuration is selected using SW101. Description Enable/disable the function as necessary.
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CHAPTER 11 TROUBLESHOOTING I. Counter mode [6] To start counter mode, press ‘6’ (keypad) and the OK key in sequence. To select an item, press the number (keypad) and the OK key in sequence. • To initialize the counter, select the appropriate item; then, press the user mode key and the OK key in sequence. To delete an item, press the Clear key. • A press on the Copy Start key while the service mode description is being shown starts copying operation. Remarks Description No. Incremented upon delivery.
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CHAPTER 11 TROUBLESHOOTING • Counter indicator Turn on the indicators on the indication section one by one until the count value is indicated. (up to 8 digits) The display changes sequentially at intervals of 700 msec. Example ; count: 751320 11-178 COPYRIGHT © 1997 CANON INC. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING VIII. SELF DIAGNOSIS The microprocessor on the copier’s DC controller is equipped with a function that checks the condition of the copier (particularly, its sensors). The microprocessor runs a check at such times as programmed and indicates an error code or executes error auto power-off or error shut-off upon detection of an error. A.
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CHAPTER 11 TROUBLESHOOTING Code Cause Description E003 •Thermistor (TH1; poor contact, open circuit) •Heater (H1, H2; open circuit) •Thermal switch (TS1; open circuit) •SSR (faulty) •DC controller PCB (faulty) •The temperature drops to 100°C or less after reaching a specific temperature. (Notes 1, 2) When an error associated with ‘E003’ is detected, the copier turns off the power switch in 2 sec and then turns off all power supplies.
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CHAPTER 11 TROUBLESHOOTING Code Cause E053 •Horizontal registration paper edge sensor (PS16; faulty) •Horizontal registration motor (M5; faulty) •Motor driver 1 PCB (faulty) •DC controller PCB (faulty) The horizontal registration paper edge signal (HRPD) is not generated within 10 sec after the power switch is turned on.
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CHAPTER 11 TROUBLESHOOTING Cause Description •Blank shutter motor (M8; faulty) •Blank shutter home position sensor (PS20; faulty) •Motor driver 2 PCB (faulty) •DC controller PCB (faulty) •The blank shutter home position signal (BLHP) is not generated within 7 sec after the power switch has been turned on. •The blank shutter home position signal (BLHP) does not turn off within 1 sec after it has been generated.
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CHAPTER 11 TROUBLESHOOTING B. Pedestal Self Diagnosis Code E901 Cause •Pedestal motor (M1; faulty) •Pedestal controller PCB (faulty) COPYRIGHT © 1997 CANON INC. Timing The motor clock signal is not input within 1 sec after pedestal motor drive signal has been generated. CANON NP6330 REV.
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CHAPTER 11 TROUBLESHOOTING C. RDF/ADF Self Diagnosis Code E400 Timing Cause •Communication (error; data, with copier) The communication with the copier has been disrupted for 5 sec or more. (Check are made at all times.) RDF •Pick-up motor (fails to rotate) •Pick-up roller sensor (faulty) •A flag is attached to the spindle of the pick-up motor, and the rotation of the pick-up motor is monitored in reference to the flag blocking the pick-up roller sensor.
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CHAPTER 11 TROUBLESHOOTING D. Sorter Self Diagnosis Code E500 E510 E530 Cause •CPU or communication IC on sorter controller (faulty) An error has occurred in the communication between the sorter and the copier. •Feeder motor (fails to rotate) The clock signal from the motor remains off for 250 msec. •Stapler guide bar swing motor (fails to rotate) The home position sensor does not turn off when 2560 pulses of the motor drive signal have been generated.
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APPENDIX A. GENERAL TIMING CHART ..........A-1 B. SIGNALS AND ABBREVIATIONS ..A-2 C. GENERAL CIRCUIT DIAGRAM....A-5 COPYRIGHT © 1997 CANON INC. D. PEDESTAL CONTROLLER ..........A-7 E. SPECIAL TOOLS LIST .................A-9 F. SOLVENTS AND OILS..................A-10 CANON NP6330 REV.
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A.
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B. SIGNALS AND ABBREVIATIONS What follows below is a list of signals and abbreviations used in the chapters of the manual and circuit diagrams. The abbreviations within parentheses represent analog signals, which cannot be expressed in terms of ‘1’ or ‘0’. 1.
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PDP6 PDP7 PDP8 PEXP PS2D PTON PWOFF RDC RDOD RGCD SCA SCB SCCLK SCFD SCHP SCM1 SCM2 SCMD SCRET SCRON SCVREF SERVICE SFON SHRD SIZE0 SIZE1 SIZE1 SIZE2 SIZE2 SIZE3 SPCH SSSRD TEP TH1 VR1CD VR2CD WCHP WCRP ZRCS PAPER DETECTION signal 6 PAPER DETECTION signal 7 PAPER DETECTION signal 8 PRE-EXPOSURE LAMP LIGHT command VERTICAL PASS ROLLER 3 PAPER DETECTION signal PRIMARY/TRANSFER CORONA CURRENT ON command POWER SWITCH OFF command RIGHT DOOR CLOSED signal RIGHT DOOR OPEN signal REGISTRATION CLUTCH DRIVE command
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APPENDIX E. SPECIAL TOOLS LIST No. 1 Tool name Door switch Tool No. TKN-0093 Shape Description Code* A Point of use Front door 2 Mirror positioning Tool (front, rear) 3 Spring gauge 4 Cleaning oil FY9-3002-000 B Use it to adjust the distance between No.1 and No.2 mirrors CK-0054 B • For adjusting lens drive belt; 0 to 1500g TKN-0464 A For cleaning the fixing roller (10 packs/box) TKN-0464-000 CLEANNING OIL HUILE DE NETTOYAGE CANON INC. JAPAN / JAPON COPYRIGHT © 1997 CANON INC.
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APPENDIX F. SOLVENTS AND OILS No. 1 Description Use Ethyl alcohol (Ethanol) Isopropyl alcohol (Isopropanol) 2 3 MEK Heat-resistant grease Composition Remarks Cleaning: e.g., glass, plastic, rubber parts; external covers C HO (CHZ ) CHOH • Do not bring near fire. • Procure localy. • Isopropyl alcohol may be substituted. Cleaning: e.g., metal; oil or toner dirt CH COC H • Do not bring near fire. • Procure locally.
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Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPT. 1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIV. CANON INC.
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PRINTED IN JAPAN (IMPRIME AU JAPON) 0597S3.02-1 This publication is printed on 70% reprocessed paper.