_______________________________ UTAX CD 1015 / 1020 Service Manual
CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions. CAUTION Double-pole/neutral fusing.
Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. These symbols are described below: DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol. WARNING:Serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol.
1. Installation Precautions WARNING • Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock. When using an extension cable, always check that it is adequate for the rated current. ............................................................................................ • Connect the ground wire to a suitable grounding point. Not grounding the copier may cause fire or electric shock.
2. Precautions for Maintenance WARNING • Always remove the power plug from the wall outlet before starting machine disassembly. .............. • Always follow the procedures for maintenance described in the service manual and other related brochures. .........................................................................................................................................
• Do not pull on the AC power cord or connector wires on high-voltage components when removing them; always hold the plug itself. ...................................................................................................... • Do not route the power cable where it may be stood on or trapped. If necessary, protect it with a cable cover or other appropriate item. ..............................................................................................
2AV/X CONTENTS 1-1 Specifications 1-1-1 Specifications ....................................................................................................................................... 1-1-1 1-1-2 Parts names and their functions ........................................................................................................... 1-1-5 (1) Copier .............................................................................................................................................
2AV/X (6) A black line appears longitudinally. .............................................................................................. (7) A black line appears laterally. ....................................................................................................... (8) One side of the copy image is darker than the other. ................................................................... (9) Black dots appear on the image. .....................................................................
2AV/X (4) (5) (6) (7) (8) The scanner does not travel. ........................................................................................................ Multiple sheets of paper are fed at one time. ................................................................................. Paper jams. .................................................................................................................................. Toner drops on the paper conveying path. .......................................
2AV/X 1-7 Requirements on PCB Replacement 1-7-1 1-7-2 1-7-3 1-7-4 Replacing the main PCB ...................................................................................................................... Upgrading the firmware on the main PCB ............................................................................................ Upgrading the firmware on the operation unit PCB (20 cpm copier only) ............................................ Adjustment-free variable resistors (VR) ...............
2AV/X 1-1-1 Specifications 15 cpm copier Type ............................................... Desktop Copying system .............................. Indirect electrostatic system Originals ......................................... Sheets and books Maximum size: A3/11" × 17" Original feed system ...................... Fixed Copy paper .....................................
2AV/X 1-1 Transfer system ............................. Transfer roller Fixing system ................................. Heat roller Heat source: halogen heaters (850 W for 120 V specifications/910 W for 220-240 V specifications) Control temperature: 180°C/356°F (at normal ambient temperature) Abnormally high temperature protection device: 140°C/284°F thermostat Fixing pressure: 49 N Charge erasing system .................. Exposure by cleaning lamp Cleaning system .............................
2AV/X 20 cpm copier Type ............................................... Desktop Copying system .............................. Indirect electrostatic system Originals ......................................... Sheets and books Maximum size: A3/11" × 17" Original feed system ...................... Fixed Copy paper .....................................
2AV/X 1-1 Cleaning system ............................. Cleaning blade Scanning system ............................ Flat bed scanning by CCD image sensor Bit map memory ............................. 17.1 MB (standard) Image storage memory .................. 46.9 MB (standard) Resolution ...................................... 600 × 600 dpi Light source .................................... Inert gas lamp Dimensions ....................................
2AV/X 1-1-2 Parts names and their functions 1-1 (1) Copier 1 ( 2 * 3 ‹ 4 7 % 8 $ ¤ 6 ‹ @ 5 › 0 9 ! & # ⁄ ^ ) Figure 1-1-1 1 Original cover (optional)*1 2 Operation panel 3 Paper conveying unit 4 Multi-Bypass 5 Insert guides 6 Support tray 7 Toner cartridge 8 Toner cartridge release lever 9 Waste toner tank 0 Waste toner tank release lever ! Cleaning shaft @ Front cover # Main switch $ Copy store section % Ejection section ^ Upper drawer & Lower drawer*2 * Platen ( Original size scale
2AV/X (2) Operation panel 15 cpm copier 1-1 Metric Á ´ Œ ·‹ ˇ „ ‚ › ¤⁄ )( % @ 8 * & ^ $% $# !0 6 54 7 ‰ ° ‡ fi fl 9 3 2 1 Inch Á ´ Œ ·‹ ˇ „ ‚ › ¤⁄ )( % @ ^ $% $# !0 8 7 6 54 ‰ ° ‡ fi fl * & 9 3 2 1 Figure 1-1-2 1 Start key (Indicator) 2 Stop/Clear key 3 Numeric keys 4 Reset key 5 Interrupt key (Indicator) 6 Energy Saver (preheat) key (Indicator) 7 Manual/Enter key 8 Copy quantity/magnification display 9 Zoom (+) key 0 Zoom (-) key ! Auto mode selection key/APS/AMS indicator
2AV/X 20 cpm copier Metric 1-1 ‹ ⁄ * % › ¤ ( $ fl ‡fi ) # ^& 7 @ ! 0 4 3 2 9 8 6 5 1 Inch ‹ ⁄ * % › ¤ ( $ fl ‡fi ) ^& # 7 @ ! 0 4 3 2 9 8 6 5 1 Figure 1-1-3 1 2 3 4 5 6 7 8 9 0 ! @ # $ % ^ & Start key (Indicator) Reset key Interrupt key (Indicator) Energy Saver (preheat) key (Indicator) Stop/Clear key Numeric keys Message display Enter key Paper Select/Cursor up key Original/Cursor down key Manual/Cursor right key Cursor left key Machine Error indicator Data indicator Zoom (+
2AV/X 1-1-3 Machine cross section 1-1 6 8 7 3 2 1 5 4 Light path Paper path Figure 1-1-4 1 2 3 4 5 6 7 8 1-1-8 Machine cross section Paper feed section Main charging section Optical section Developing section Transfer and paper conveying section Cleaning section Charge erasing section Fixing section
2AV/X 1-1-4 Drive system 1-1 (1) Drive system 1 (optical section) 7 5 8 3 4 6 1 2 As viewed from machine front Figure 1-1-5 1 2 3 4 Scanner motor gear Gear 44/16 Gear 26 Scanner wire drum 5 6 7 8 Scanner wire Scanner wire pulley Scanner wire pulley Scanner wire pulley 1-1-9
2AV/X (2) Drive system 2 (drive motor drive train) ˆ 1-1 ¨ Á 4 — ‡ 3 2 ‰ 5 ˇ fi fl › & ´ Œ 1 7 „ · 6 * ( ) ¤ ⁄ ‚ 8 ‹ @ 9 ^ Î 0 Í % ! # Å $ ” Ø As viewed from machine rear Figure 1-1-6 1 2 3 4 5 6 7 8 9 0 ! @ # $ % Drive motor gear Gear 58/30 Gear 48/27 Gear 60 Drum gear Transfer roller gear Gear 52/30 Gear 32/16 Gear 32/16 Gear 20 Gear 20 Gear 20 Idle gear 16 Bypass paper feed clutch gear Gear 16 ^ & * ( ) ⁄ ¤ ‹ › fi fl ‡ — · ‚ Upper paper feed clutch gear Gear 30 Gear 26/14 Gea
2AV/X 1-2-1 Drum Note the following when handling or storing the drum. • When removing the image formation unit, never expose the drum surface to strong direct light. • Keep the drum at an ambient temperature between –20°C/–4°F and 40°C/104°F and at a relative humidity not higher than 85% RH. Avoid abrupt changes in temperature and humidity. • Avoid exposure to any substance which is harmful to or may affect the quality of the drum. • Do not touch the drum surface with any object.
2AV/X • 20 cpm copier a: 675 mm/269/16" b: 873 mm/343/8" c: 555 mm/21" d: 718 mm/281/4" e: 603 mm/233/4" f: 1218 mm/469/16" g: 418 mm/167/16" h: 951 mm/377/16" 1-2 e g h d c f a b Figure 1-2-1b Installation dimensions 1-2-2
2AV/X 1-3-1 Unpacking and installation (1) Installation procedure Start 1-3 Unpack. Remove the tapes. Adjust the fixing pressure. Remove the pins holding light source units 1 and 2. Connect the power cord. Install the optional devices. Carry out initial developer setting (maintenance item U130). Remove the image formation unit. Load paper. Load developer. Output an own-status report (maintenance item U000). Release the cleaning blade. Exit maintenance mode. Install a waste toner tank.
2AV/X Light source unit 1 pins Light source unit 2 pin 1-3 *The diagram shows the 20 cpm copier. *The original cover is standard for Asia and Oceania specifications for the 15 cpm copier only.
2AV/X Unpack. • 15 cpm copier ! @ 9 4 4 1-3 %& 0 # 1 ) 2 ^ 8 *( $ 3 7 5 6 Figure 1-3-2a Unpacking 1 Copier 2 Outer case 3 Inner frame 4 Upper pads 5 Bottom pads 6 Bottom case 7 Skid 8 Bottom plate 9 Spacer*1 0 Machine cover ! Original cover*2 @ Plastic bag*2 # Bar code labels $ Hinge joint % Instruction handbook ^ Plastic bag & Business reply mail*3 * Drawer spacers ( Drawer claw spacers ) Power cord *1: 230 V specifications only. *2: Asia and Oceania specifications only.
2AV/X • 20 cpm copier 8 @$ 4 4 1-3 9 1 * 0 # & %^ ! 3 7 5 6 Figure 1-3-2b Unpacking 1 Copier 2 Outer case 3 Inner frame 4 Upper pads 5 Bottom pads 6 Bottom case 7 Skid 8 Spacer*1 9 Machine cover 0 Bar code labels ! Hinge joint 1-3-4 2 @ Instruction handbook # Plastic bag $ Business reply mail*2 % Drawer spacers ^ Drawer claw spacers & Rear cover spacer * Power cord *1: 230 V specifications only. *2: 120 V specifications only.
2AV/X Remove the tapes. 1. Remove the tape holding the front cover and the power cord, and remove the tape binding the power cord. 2. Remove the tape holding the drawer. 3. Remove the two tapes holding the paper conveying unit and bypass tray. 4. Remove the three tapes holding the pins for light source units 1 and 2. 5. Remove the tape holding the rear cover spacer and then the spacer.* *20 cpm copier only.
2AV/X 7. Pull the drawer out and remove the tape holding each of the drawer spacers and then the spacers. 8. Remove the tape holding the fulcrum of the drawer lift inside the drawer. Fulcrum of the drawer lift 1-3 Drawer spacers Figure 1-3-5 Rear cursor 9. Remove the tape holding each of the front and rear cursors. Front cursor Figure 1-3-6 10. Remove the tape holding each of the drawer claw spacers and then the spacers. Drawer claw spacers Figure 1-3-7 11. Refit the drawer.
2AV/X Remove the pins holding light source units 1 and 2. 1. Remove the two pins for light source unit 1 and the pin for light source unit 2. Light source unit 1 pins 1-3 Light source unit 2 pin Figure 1-3-8 Install optional devices. 1. Install the optional devices (STDF, SRDF*1, drawer/s, job separator, duplex unit*1, finisher*1 and/or original cover*2) as necessary (see the respective installation manuals or service manuals). *1: Optional for 20 cpm copier only.
2AV/X Load developer. 1. Remove the developing unit upper cover by pushing and lifting it in the direction of the arrow in the diagram. Caution: Be sure to place the image formation unit on a level surface when loading developer. Developing unit upper cover 1-3 Figure 1-3-10 2. Shake the developer bottle well to agitate the developer. 3. While turning the magnet roller gear in the direction of the arrow in the diagram, uniformly pour developer into the image formation unit.
2AV/X 2. Check that the cleaning shaft is inserted as far as it will go. 3. Refit the image formation unit using the two screws. 4. Connect the 12-pin connector. 12-pin connector 1-3 Figure 1-3-13 Install a waste toner tank. Waste toner tank release lever 1.While holding the waste toner tank release lever up, fit the waste toner tank in the copier. Waste toner tank 2. Close the front cover. Figure 1-3-14 Adjust the fixing pressure. 1. Remove the two blue screws. 2.
2AV/X Connect the power cord. 1. Connect the power cord to the connector on the copier. 2. Insert the power plug into the wall outlet. Carry out initial developer setting (maintenance item U130). 1-3 1. Turn the main switch on and enter the maintenance mode by entering “10871087” using the numeric keys. 2. Enter “130” using the numeric keys and press the start key. 3. Press the start key to execute the maintenance item.
2AV/X Install a toner cartridge. 1. Open the front cover. 2. Shift the toner cartridge release lever to the right until it stops. Toner cartridge release lever 1-3 Figure 1-3-16 3. Tap the toner cartridge on the top five or six times and shake it horizontally eight to ten times to agitate the toner. Figure 1-3-17 4. Align the arrows on the top of the toner cartridge with the cutouts in the eject tray and then insert the cartridge into the copier. 5.
2AV/X Make test copies. 1. Place an original and make test copies. Check if the center lines of the bypass tray and drawer are correct. If not, adjust the center lines. Completion of machine installation.
2AV/X 1-3-2 Setting initial copy modes Factory settings are as follows: Maintenance item No.
2AV/X 1-3-3 Copier management In addition to a maintenance function for service, the copier is equipped with a management function which can be operated by users (mainly by the copier administrator). In this copier management mode, settings such as default settings can be changed. (1) Using the copier management mode (15 cpm copier) 1-3 • Executing a department management item • Executing a default setting item Start Start Press both of the copy exposure adjustment keys and numeric key * for 3 s.
2AV/X (2) Setting department management items Turning department management on/off Clearing copy counts 1. Select “d01” and press the enter key. 2. Select “copy management on” or “copy management off” and press the enter key. Setting range: 1 (copy management on)/ 2 (copy management off) 1. Select “d04” and press the enter key. 2. Select “clear” or “do not clear” and press the enter key. Setting range: 1 (clear)/2 (do not clear) Printing management list Registering a new department code 1.
2AV/X Default drawer Copy limit Sets the drawer to be selected in cases such as after the reset key is pressed. 1. Select “F10” and press the enter key. 2. Select the default drawer and press the enter key. Default drawer: 1 (drawer 1)/2 (drawer 2)/ 3 (drawer 3)/4 (drawer 4) Note: This setting item will not be displayed if no optional drawer is installed. Sets the number of copies limit for multiple copying. 1. Select “F16” and press the enter key. 2. Enter the setting and press the enter key.
2AV/X Silent mode Auto preheat time Selects whether or not to enter silent mode after copying. 1. Select “F22” and press the enter key. 2. Select “on” or “off” and press the enter key. Setting range: 1 (on)/2 (off) Sets the auto preheat time. 1. Select “F25” and press the enter key. 2. Select the setting and press the enter key.
2AV/X (4) Using the copier management mode (20 cpm copier) Start Press the */language key. Select “Management” and press the enter key. Enter the management code. Execute department management items (page 1-3-19). 1-3 Select “End” and press the enter key. Select “Copy default” and press the enter key. Enter the management code. Make copy default settings (page 1-3-19). Select “End” and press the enter key. Select “Machine default” and press the enter key. Enter the management code.
2AV/X (5) Setting department management items Registering a new department code Clearing copy counts Sets a department code and the limit of the number of copies for that department. 1. Select “Management Setting” (“COPY MGMT SETTING”) and press the enter key. 2. Select “Register” and press the enter key. 3. Enter a department code* using the numeric keys and press the enter key. * 4 digits for metric specifications and 7 digits for inch specifications. 4. Select “Copy limit”.
2AV/X Photo original density Border erase width Adjusts the exposure to be used when photo original is selected for the image mode. 1. Select “Photo original density set” and press the enter key. 2. Select the setting and press the enter key. Setting range: 1 to 7 Sets the default setting of the border erase width for the border erase mode. 1. Select “Border Erase Width” and press the enter key. 2. Select the setting and press the enter key.
2AV/X APS for special paper Auto shutoff time Sets whether to use the paper source with the special paper for auto paper selection and auto drawer switching. 1. Select “APS for special paper” and press the enter key. 2. Select “On” or “Off” and press the enter key. Sets the auto shutoff time. 1. Select “Auto shut-off time” and press the enter key. 2. Select the setting and press the enter key.
2AV/X 1-3-4 Installing the key counter (option) 1-3 Key counter installation requires the following parts: Key counter set (P/N 2A369702) Contents of the set: • Key counter cover (P/N 2A360010) • Key counter retainer (P/N 66060030) • Key counter cover retainer (P/N 66060022) • Key counter mount (P/N 66060040) • Key counter socket assembly (P/N 41529210) • One (1) M3 × 8 bronze binding screw (P/N B1303080) • Four (4) M4 × 6 bronze TP-A screws (P/N B4304060) • Two (2) M4 × 10 bronze TP-A screws (P/N B43041
2AV/X 8. Refit the right cover. 9. Pass the 4-pin connector of the key counter through the aperture in the key counter cover retainer, and insert into the 4-pin connector of the copier. 10. Seat the projection of the key counter cover retainer in the aperture in the right cover, and fasten them both to the copier using three screws. 11. Fit the key counter cover with the key counter socket assembly inserted to the key counter cover retainer on the copier using the screw.
2AV/X 1-3-5 Installing the original size detection sensor (option for the metric specifications of the 15 cpm copier only) Original size detection sensor installation requires the following parts: • Original size detection sensor (P/N 35927290) • One (1) M3 × 8 bronze binding screw (P/N B1303080) Procedure 1. Remove the original cover or the DF. 2. Remove the five screws holding the right cover. While shifting the right cover in the direction of the arrow in the diagram, remove the contact glass.
2AV/X 1-3-6 Installing the drawer heater (option) Drawer heater installation requires the following parts: For 120 V specifications Drawer heater set (P/N 3A569710) Contents of the set • One (1) BVM4 × 4 bronze binding screw (P/N B1304040) • Two (2) BVM4 × 6 bronze binding screws (P/N B1304060) • Clamp (P/N M2105030) • Band (P/N M2607010) • High temperature caution sticker (P/N 20305130) • Drawer heater wire (P/N 3A568010) • Drawer heater (P/N 34860030) For 220-240 V specifications Drawer heater set (P/N 3
2AV/X 7. Insert one of the 2-pin receptacles on the heater wire into the opening in the frame and connect the other 2-pin receptacle to the drawer heater cable. 2-pin receptacle 1-3 Opening 2-pin receptacle Figure 1-3-27 8. Refit the drawer. 9. Install the optional drawer to the copier. 10. Remove the jumper connector from the heater wire on the copier or the above optional drawer and connect the 2-pin connector on the heater wire in its place. 2-pin connector Figure 1-3-28 11.
2AV/X 1-4-1 Maintenance mode The copier is equipped with a maintenance function which can be used to maintain and service the machine. (1) Executing a maintenance item Start Enter 10871087. Enter the number of the maintenance item to be executed using the cursor up/down keys (20 cpm), the zoom +/keys (15 cpm) or numeric keys. · · · · · · · Entering the maintenance mode · · · · · · · Selecting a maintenance item 1-4 Press the start key. The maintenance item is run. Press the stop/clear key.
2AV/X (2) Maintenance mode item list (for 20 cpm copier) Item Section Maintenance item contents No.
2AV/X High voltage Item No.
2AV/X Image Item No.
2AV/X (3) Contents of maintenance mode items (for 20 cpm copier) Maintenance item No. U000 Outputting an own-status report Description Description Outputs lists of the current settings of the maintenance items, and paper jam and service call occurrences. Purpose To check the current setting of the maintenance items, or paper jam or service call occurrences.
2AV/X Maintenance item No. U003 Description Setting the service telephone number Description Sets the telephone number to be displayed when a service call code is detected. Purpose To set the telephone number to call service when installing the machine. Method Press the start key. The currently set telephone number is displayed. Setting 1. Enter a telephone number (up to 16 digits) using the numeric keys.
2AV/X Maintenance item No. U005 Description Copying without paper Description Simulates the copy operation without paper feed. Purpose To check the overall operation of the machine. Method 1. Press the start key. The screen for selecting an item is displayed. 2. Select the item to be operated using the cursor up/down keys. The selected item is displayed in reverse. Display PPC PPC + DF Operation Only the copier operates. Both the copier and SRDF operate (continuous operation). 3. Press the interrupt key.
2AV/X Maintenance item No. U020 Description Initializing all data Description Initializes all the backup RAM on the main PCB to return to the original settings. Purpose Used when replacing the backup RAM on the main PCB. Method 1. Press the start key. The screen for executing is displayed. 2. Select EXECUTE using the cursor up/down keys. It is displayed in reverse. 3. Press the start key. All data in the backup RAM is initialized, and the original settings for Japan specifications are set.
2AV/X Maintenance item No. U030 Description Checking motor operation Description Drives each motor. Purpose To check the operation of each motor. Method 1. Press the start key. The screen for selecting an item is displayed. 2. Select the motor to be operated using the cursor up/down keys. 3. Press the start key. The selected item is displayed in reverse and the operation starts.
2AV/X Maintenance item No. U032 Description Checking clutch operation Description Turns each clutch on. Purpose To check the operation of each clutch. Method 1. Press the start key. The screen for selecting an item is displayed. 2. Select the clutch to be operated using the cursor up/down keys. 3. Press the start key. The selected item is displayed in reverse, and the clutch turns on for 1 s.
2AV/X Maintenance item No. U035 Description Setting folio size Description Changes the image area for copying onto folio size paper. Purpose To prevent the image at the trailing edge, or right or left side of the paper from not being copied by setting the actual size of the folio paper used. Method Press the start key. The screen for selecting an item is displayed. Setting 1. Select the item to be set using the cursor up/down keys. The selected item is displayed in reverse. 2.
2AV/X Maintenance item No. U053 Description Interrupt copy mode While this maintenance item is being performed, a VTC pattern shown below is output in interrupt copy mode. Correct values for an A3/11" × 17" output are: A = 300 ± 0.75 mm B = 260 ± 1.3 mm B A Figure 1-4-1 1-4 Adjustment 1. Output an A3/11" × 17" VTC pattern in interrupt mode. 2.
2AV/X Maintenance item No. U061 Description Turning the exposure lamp on Description Turns the exposure lamp on. Purpose To check the exposure lamp. Method 1. Press the start key. The screen for executing is displayed. 2. Press the start key. The exposure lamp lights. 3. To turn the exposure lamp off, press the stop/clear key. Completion Press the stop/clear key. The screen for selecting a maintenance item No. is displayed. U063 Adjusting the shading position Description Changes the shading position.
2AV/X Maintenance item No. U070 Description Adjusting the DF magnification Description Adjusts the DF original scanning speed. Purpose To be executed if the correct magnification is not obtained in the auxiliary scanning direction when the optional DF is used. Caution Before making this adjustment, ensure that the following adjustments have been made in maintenance mode. U053 U065 U070 Method Press the start key. Setting 1. Change the setting using the cursor left/right keys.
2AV/X Maintenance item No. U071 Description Adjustment 1. In interrupt copy mode, make a copy using the DF. 2. Check the copy image and adjust the registration as follows. For copy example 1, increase the setting of LEAD EDGE ADJ. For copy example 2, decrease the setting of LEAD EDGE ADJ. Original Copy example 1 Copy example 2 Figure 1-4-2 Completion Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is displayed.
2AV/X Maintenance item No. U072 Description Adjustment 1. In interrupt copy mode, make a copy using the DF. 2. Check the copy image and adjust the center line as follows. For copy example 1, increase the setting. For copy example 2, decrease the setting. Reference Original 1-4 Copy example 1 Copy example 2 Figure 1-4-3 Completion Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
2AV/X Maintenance item No. U074 Description Adjusting the DF input light luminosity Description Adjusts the luminosity of the exposure lamp for scanning originals from the optional DF. Purpose Used if the exposure amount differs significantly between when scanning an original on the contact glass and when scanning an original from the DF. Method Press the start key. Setting 1. Change the setting using the cursor left/right keys.
2AV/X Maintenance item No. U087 Description Setting the reference data for identifying dust Available only when the mode is turned on. 1. Select the item to be set using the cursor up/down keys. The selected item is displayed in reverse. 2. Change the setting using the cursor left/right keys. Display DENSITY Description Minimum density to be regarded as dust Setting range 10 to 95 Initial setting 35 Example DENSITY: The figure indicates the density in 256 levels of gray (0: white, 255: black).
2AV/X Maintenance item No. U091 Description Checking shading Description Performs scanning under the same conditions as before and after shading is performed, displaying the original scanning values at nine points of the contact glass. Purpose To check the change in original scanning values before and after shading. The results may be used to decide the causes for fixing unevenness (uneven density) of the gray area of an image: either due to optical (shading or CCD) or other problems.
2AV/X Maintenance item No. U092 Description Adjusting the scanner automatically Description Makes auto scanner adjustments in the order below using the specified original. • Adjusting the scanner center line (U067) • Adjusting the scanner leading edge registration (U066) • Adjusting scanner magnification in the auxiliary direction (U065) When this maintenance item is performed, the settings in U065, U066 and U067 are also changed. Purpose Used to make respective auto adjustments for the scanner. Method 1.
2AV/X Maintenance item No. U093 Description Setting the exposure density gradient Description Changes the exposure density gradient in manual density mode, depending on respective image modes (text, text and photo, photo). Purpose To set how the image density is altered by a change of one step in the manual density adjustment. Also used to make copy image darker or lighter. Start 1. Press the start key. The screen for selecting an item is displayed. 2.
2AV/X Maintenance item No. U099 Description Checking the original size detection Description Displays the original width detection data and sets the original width detection threshold. Purpose To check the original width detection. Also to change the original size detection threshold if the size of the original on the contact glass is detected incorrectly. Start 1. Press the start key. The screen for selecting an item is displayed. 2. Select the item. 3. Press the start key.
2AV/X Maintenance item No. U100 Description Setting the surface potential Description Changes the surface potential by changing the grid control voltage. Also performs main charging. Purpose To set the surface potential or check main charging. Also used when reentering data after replacing the backup RAM or initializing the set data. Start Press the start key. The screen for selecting an item is displayed.
2AV/X Maintenance item No. U101 Description Setting high voltages Description Changes the developing bias voltage and transfer voltage by changing the developing bias control voltage and transfer control voltage. Also checks the transfer output voltage. Purpose To check and change high voltages other than the main charger voltage. Start 1. Press the start key. The screen for selecting an item is displayed. 2. Select the item to be set or checked using the cursor up/down keys. 3. Press the start key.
2AV/X Maintenance item No. U109 Description Setting the drum type Description Sets or checks the drum type. Purpose To prevent variations in halftones due to differences in drum sensitivity. Method 1. Press the start key. The screen for selecting an item is displayed. 2. Select the drum type to set or check using the cursor up/down keys. The selected item is displayed in reverse. 3. Press the start key. The type is set. Completion Press the stop/clear key at the screen for selectiong an item.
2AV/X Maintenance item No. U130 Description Initial setting for the developer Description Automatically sets the toner sensor control voltage and toner feed start level for the installed developer. Purpose To set the initial settings for the developer when installing the machine or replacing the developer. Caution Before performing the initial setting for the developer, remove the transfer roller (see page 1-6-45). Method 1. Press the start key. The screen for executing is displayed. 2.
2AV/X Maintenance item No. U132 Description Replenishing toner forcibly Description Replenishes toner forcibly until the toner sensor output value reaches the toner feed start level. Purpose Used when the toner empty is detected frequently. Method 1. Press the start key. The screen for executing is displayed. 2. Press the start key. Operation starts, and the current data is displayed. Toner is replenished until the toner sensor output value reaches the toner feed start level.
2AV/X Maintenance item No. U156 Description Changing the toner control level Description Changes the toner feed start level set in maintenance item U130 or the toner empty level to be determined by the difference from the toner feed start level. Purpose To check the toner feed start level and toner empty level. Method Press the start key. The screen for selecting an item is displayed.
2AV/X Maintenance item No. U158 Description Checking/clearing the developing count Description Displays the developing count for checking, clearing or changing a figure, which is used as a reference when correcting the toner control. It is automatically cleared when U130 is executed. Purpose To check the developing count after replacing the developer. Method Press the start key. The developing count is displayed. Clearing 1. Select CLEAR using the cursor up/down keys. 2. Press the start key.
2AV/X Maintenance item No. U162 Description Stabilizing fixing forcibly Description Stops the stabilization fixing drive forcibly, regardless of fixing temperature. Purpose To forcibly stabilize the machine before the fixing section reaches stabilization temperature. Method 1. Press the start key. The screen for executing is displayed. 2. Press the start key. The forced stabilization mode is entered, and stabilization operation stops regardless of fixing temperature.
2AV/X Maintenance item No. U200 Description Turning all LEDs on Description Turns all the LEDs on the operation panel on. Purpose To check if all the LEDs on the operation panel light. Method Press the start key. All the LEDs on the operation panel light. Press the stop/clear key or wait for 10 s. The LEDs turns off, and the screen for selecting a maintenance item No. is displayed. U203 Operating DF separately Description Simulates the original conveying operation separately in the optional SRDF.
2AV/X Maintenance item No. U207 Description Checking the operation panel keys Description Checks operation of the operation panel keys. Purpose To check operation of all the keys and LEDs on the operation panel. Method 1. Press the start key. The screen for executing is displayed. 2. "1" appears on the copy quantity display and the leftmost LED on the operation panel lights. 3.
2AV/X Maintenance item No. U211 Description Completion Press the stop/clear key at the screen for selectiong an item. The screen for selectiong a maintenance item No. is displayed. U240 Checking the operation of finisher motors and solenoids Description Turns the motors and solenoids in the optional finisher on. Purpose To check the operation of the finisher motors and solenoids. Method 1. Press the start key. The screen for selecting an item is displaued. 2.
2AV/X Maintenance item No. U243 Description Checking the operation of the DF motors, solenoids and clutch Description Turns the motors, solenoids or clutch in the optional SRDF on (when SRDF is installed). Turns the motors in the optional STDF on (when STDF is installed). Purpose To check the operation of the SRDF motors, solenoids and clutch (when SRDF is installed). To check the operation of the STDF motors (when STDF is installed). Method 1. Press the start key.
2AV/X Maintenance item No. Description U244 Numerical value Original width to be detected 000 ···· 51/2" × 81/2" ···· 49.664 A5R ···· 50.176 ···· 61.440 ···· 61.952 B5R ···· 103.936 81/2" × 14"/ 81/2" × 11" ···· 104.448 Folio/A4R 139.264 ···· 1-4 ···· 139.776 ···· 146.432 B4/B5 ···· 146.994 ···· 197.120 ···· 197.632 CF (11" × 15") ···· 197.720 11" × 17"/ 11" × 15"/ 11" × 81/2" ···· 223.
2AV/X Maintenance item No. U244 Description Checking the DF switches (when installing the optional STDF) Description Displays the status of the respective switches in the optional STDF. Purpose To check if respective switches in the optional STDF operate correctly. Start 1. Press the start key. The screen for selecting an item is displayed. 2. Press the start key. The screen for executing is displayed. Method for the on/off switches 1. Turn the respective switches on and off manually to check the status.
2AV/X Maintenance item No. U250 Description Setting the maintenance cycle Description Displays and changes the maintenance cycle. Purpose To check and change the maintenance cycle. Method Press the start key. The current setting is displayed as follows: Maintenance cycle (number of copies) = setting × 1000 Setting 1. Change the setting using the cursor left/right keys.
2AV/X Maintenance item No. U252 Description Setting the destination Description Switches the operations and screens of the machine according to the destination. Purpose To be executed after replacing the backup RAM on the main PCB or initializing the backup RAM by running maintenance item U020, in order to return the setting to the value before replacement or initialization. Method Press the start key. The screen for selecting an item is displayed. Setting 1.
2AV/X Maintenance item No. U254 Description Turning auto start function on/off Description Selects if the auto start function is turned on. Purpose Normally no change is necessary. If incorrect operation occurs, turn the function off: this may solve the problem. Method Press the start key. The screen for selecting an item is displayed. Setting 1. Select either ON or OFF using the cursor up/down keys. The selected item is displayed in reverse.
2AV/X Maintenance item No. U256 Description Turning auto preheat/energy saver function on/off Description Selects if the auto preheat/energy saver function is turned on. When set to ON, the time to enter preheat/ energy saver mode can be changed in copy management mode. Purpose According to user request, to set the preheat time to save energy, or enable copying promptly without the recovery time from preheat mode. Method Press the start key. The screen for selecting an item is displayed. Setting 1.
2AV/X Maintenance item No. U260 Description Changing the copy count timing Description Changes the copy count timing for the total counter and other counters. Purpose To be set according to user (copy service provider) request. If a paper jam occurs frequently in the finisher when the number of copies is counted at the time of paper ejection, copies are provided without copy counts. The copy service provider cannot charge for such copying. To prevent this, the copy timing should be made earlier.
2AV/X Maintenance item No. U330 Description Setting the number of sheets to enter stacking mode during sort operation Description When sort copying is set to perform automatically in the output form setting of the user simulation, sets the number of sheets at which the eject location is switched to the optional finisher (only when the finisher is installed). Purpose To be set as required according to the number of copies the user makes. Method 1. Press the start key. The screen for executing is displayed.
2AV/X Maintenance item No. U342 Description Setting the ejection restriction Description Sets or cancels the restriction on the number of sheets to be ejected continuously when the internal eject tray is selected as the eject location. Purpose According to user request, sets or cancels restriction on the number of sheets. Method 1. Press the start key. The screen for selecting an item is displayed. 2. Select ON or OFF using the cursor up/down keys.
2AV/X Maintenance item No. U344 Description Setting preheat/energy saver mode Description Changes the control for preheat/energy saver mode. Purpose According to user request, selects which has priority, the recovery time from preheat or energy saver. Method Press the start key. The screen for selecting an item is displayed. Setting 1. Select control mode using the cursor up/down keys.
2AV/X Maintenance item No. U348 Description Setting the copy density adjustment range Description Selects the adjustment range for copy density from NORMAL and SPECIAL AREA (for wider range). Purpose To change the setting according to user request. When especially dark or light density is requested, set to SPECIAL AREA. Method Press the start key. The screen for selecting an item is displayed. Setting 1. Select the density range using the cursor up/down keys.
2AV/X Maintenance item No. U404 Description Adjusting margins for scanning an original from the DF Description Adjusts margins for scanning the original from the DF. Purpose Used if margins are not correct when the optional DF is used. Caution Before making this adjustment, ensure that the following adjustments have been made in maintenance mode. U402 U403 U404 Method Press the start key. The screen for selecting an item is displayed. Setting 1. Select the item to be set using the cursor up/down keys.
2AV/X Maintenance item No. U407 Description Adjusting the leading edge registration for memory image printing Adjustment See page 1-6-12. U901 Checking/clearing copy counts by paper feed locations Description Displays or clears copy counts by paper feed locations. Purpose To check the time to replace consumable parts. Also to clear the counts after replacing the consumable parts. Method 1. Press the start key. The counts by paper feed locations are displayed. 2.
2AV/X Maintenance item No. U904 Description Checking/clearing the service call counts Description Displays or clears the service call code counts by types. Purpose To check the service call code status by types. Also to clear the service call code counts after replacing consumable parts. Method 1. Press the start key. The service call count is displayed by service call codes. 2. Change the screen using the cursor left/right keys. Clearing 1. Select the count to be cleared using the cursor up/down keys.
2AV/X Maintenance item No. U906 Description Resetting partial operation control Description Resets the service call code for partial operation control. Purpose To be reset after partial operation is performed due to problems in the drawers or other sections, and the related parts are serviced. Method 1. Press the start key. 2. Select EXECUTE using the cursor up/down keys. 3. Press the start key to reset partial operation control.
2AV/X Maintenance item No. U914 Description Switching between fax and copier modes Description Selects whether the fax or copier mode is given priority when the optional facsimile kit is installed to use the copier as a fax. Purpose To select the mode that is used more frequently by the user. Method Press the start key. The screen for selecting an item is displayed. Setting 1. Select the priority mode (fax mode or copier mode) using the cursor up/down keys. 2. Press the start key.
2AV/X Maintenance item No. U992 Description Checking or clearing the printer/fax count Description Displays, clears or changes the print count of the printer or fax when the optional printer board or fax unit is installed. Purpose To check the frequency of use of the printer or fax. Method Press the start key. The print count of the printer and fax are displayed. Setting 1. Select the count to be cleared using the cursor up/down keys. 2. Enter a six-digit count using the numeric keys.
2AV/X Maintenance item No. U998 Description Outptting the memory list Description Outputs the list of memory. Purpose To output the list as required. Method 1. Press the start key. The screen for selecting an item is displayed. 2. Enter the six digits of address using the numeric keys. To enter alphabets, press the keys shown below as required. Key */Language key Scanner key On-line/Printer key Margin/Border Erase/Book Erase key Duplex/Split Page key Layout key 1-4 Symbol A B C D E F 3.
2AV/X (4) Maintenance mode item list (for 15 cpm copier) Section General Initialization Drive, paper feed, paper conveying and cooling system Item Maintenance item contents No.
2AV/X Section High voltage Item Maintenance item contents No.
2AV/X Section Image processing Others Item Maintenance item contents No.
2AV/X (5) Contents of maintenance mode items (for 15 cpm copier) Maintenance item No. U000 Outputting an own-status report Description Description Outputs lists of the current settings of the maintenance items, and paper jam and service call occurrences. Purpose To check the current setting of the maintenance items, or paper jam or service call occurrences.
2AV/X Maintenance item No. U005 Copying without paper Description Description Simulates the copy operation without paper feed. Purpose To check the overall operation of the machine. Method 1. Press the start key. A selection item appears. 2. Select the item to be operated using the copy exposure adjustment keys. Display Operation P P-d Only the copier operates. Both the copier and DF operate (continuous operation). 3. Press the interrupt key. 4. Set the operation conditions required.
2AV/X Maintenance item No. U021 Initializing memories Description Description Initializes the setting data other than that for adjustments due to variations between respective machines, i.e., settings for counters, service call history and mode settings. As a result, initializes the backup RAM according to the specifications depending on the destination selected in U252. Purpose Used to return the machine settings to the factory settings. Method 1. Press the start key. 2.
2AV/X Maintenance item No. U031 Checking switches for paper conveying Description Description Displays the on-off status of each paper detection switch on the paper path. Purpose To check if the switches for paper conveying operate correctly. Method 1. Press the start key. 2. Turn each switch on and off manually to check the status. When the on-status of a switch is detected, the corresponding original size indicator lights.
2AV/X Maintenance item No. U033 Checking solenoid operation Description Description Turns each solenoid on. Purpose To check the operation of each solenoid. Method 1. Press the start key. A selection item appears. 2. Select the desired operation using the copy exposure adjustment keys. 3. Press the start key. The selected operation starts. Display Operation b1 b2 A Turning the feedshift solenoid (FSSOL)* on Turning the feedshift solenoid (FSSOL)* off Turning the main switch off * Optional.
2AV/X Maintenance Description item No. U053 Performing fine adjustment of the motor speed Description Performs fine adjustment of the speeds of the motors. Purpose Used to adjust the speed of the respective motors when the magnification is not correct. Method Press the start key. Setting 1. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys. 2. Change the setting using the zoom +/– keys. Copy exposure indicator Description Setting range Initial setting Exp.
2AV/X Maintenance item No. U060 Adjusting the scanner input properties Description Description Adjusts the image scanning density. Purpose Used when the entire image appears too dark or light. Method Press the start key. Setting 1. Change the setting using the zoom +/– keys. Description Setting range Initial setting Image scanning density 0 to 23 12 Increasing the setting makes the density lower, and decreasing it makes the density higher. 2. Press the start key. The value is set.
2AV/X Maintenance item No. U065 Adjusting the scanner magnification Description Adjustment See pages 1-6-32 and 34. U066 Adjusting the leading edge registration for scanning an original on the contact glass Adjustment See page 1-6-36. U067 Adjusting the center line for scanning an original on the contact glass Adjustment See page 1-6-37. U070 Adjusting the DF magnification Description Adjusts the DF original scanning speed.
2AV/X Maintenance item No. U071 Adjusting the DF scanning timing Description Description Adjusts the DF original scanning timing. Purpose To be executed if there is a regular error between the leading or trailing edges of the original and the copy image when the optional DF is used. Caution Before making this adjustment, ensure that the following adjustments have been made in maintenance mode. U034 U066 U071 Method Press the start key. Setting 1.
2AV/X Maintenance item No. U072 Adjusting the DF center line Description Description Adjusts the scanning start position for the DF original. Purpose To be executed if there is a regular error between the centers of the original and the copy image when the optional DF is used. Caution Before making this adjustment, ensure that the following adjustments have been made in maintenance mode. U034 U067 U072 Method Press the start key. Setting 1. Change the setting using the zoom +/– keys.
2AV/X Maintenance item No. U073 Checking scanner operation Description Description Simulates the scanner operation under arbitrary conditions. Purpose To check scanner operation. Method 1. Press the start key. 2. Select the item to be changed by lighting a copy exposure indicator using the copy exposure adjustment keys. 3. Change the setting using the zoom +/– keys. Copy exposure indicator Operating conditions Setting range Exp. 1 Exp. 2 Exp.
2AV/X Maintenance item No. U075 Setting the original size detection Description Description Sets whether or not to detect the original size automatically using the original size detection sensor (OSDS). Purpose On the metric specifications of the European models, set to “on” when an optional original size detection sensor is installed. Method Press the start key. Setting 1. Select “on” or “oFF” using the zoom +/– keys.
2AV/X Maintenance Description item No. U087 Turning the DF scanning position adjust mode on/off Description Turns on or off the DF scanning position adjust mode, in which the DF original scanning position is adjusted automatically by determining the presence or absence of dust on the slit glass. Also changes the reference data for identifying dust.
2AV/X Maintenance Description item No. U088 Setting the input filter (moiré reduction mode) Description Turns moiré reduction mode on and off by switching the input filter on and off. Purpose Used to prevent regular density unevenness (moiré) on halftone image areas of the copy image in text mode and text and photo mode. Such moiré is more likely to appear when an enlargement or reduction copy is made in text mode from an original containing large halftone image areas. Method Press the start key. Setting 1.
2AV/X Maintenance item No. U091 (cont.) Description 3. Press the start key. Scanning is performed under the selected conditions and the result is displayed. 4. Change the measurement point by lighting a copy exposure indicator or making one flash using the copy exposure adjustment keys. For the correspondence between the measurement points and the copy exposure indicators, see Figure 1-4-11.
2AV/X Maintenance item No. U092 Adjusting the scanner automatically Description Description Makes auto scanner adjustments in the order below using the specified original. • Adjusting the scanner center line (U067) • Adjusting the scanner leading edge registration (U066) • Adjusting scanner magnification in the auxiliary direction (U065) When this maintenance item is performed, the settings in U065, U066 and U067 are also changed. Purpose Used to make respective auto adjustments for the scanner. Method 1.
2AV/X Maintenance item No. U093 Setting the exposure density gradient Description Description Changes the exposure density gradient in manual density mode, depending on respective image modes (text, text and photo, photo). Purpose To set how the image density is altered by a change of one step in the manual density adjustment. Also used to make copy image darker or lighter. Start 1. Press the start key. A selection item appears. 2.
2AV/X Maintenance Description item No. U093 Setting (cont.) 1. Select the item to be adjusted by lighting a copy exposure indicator using the copy exposure adjustment keys. 2. Adjust the setting using the zoom +/– keys. Copy exposure indicator Description Exp. 1 Exp.
2AV/X Maintenance item No. U099 Checking the original size detection Description Description Displays the original width detection data and sets the original width detection threshold. Purpose To check the original width detection. Also to change the original size detection threshold if the size of the original on the contact glass is detected incorrectly. Start 1. Press the start key. A selection item appears. 2. Select the item using the image mode selection key. 3. Press the start key.
2AV/X Maintenance Description item No. U099 Method to set or check the original size detection threshold (cont.) 1. Place an original on the contact glass and turn the original detection switch on. The original size detection starts and detection data is displayed. 2. Change the detection item by lighting a copy exposure indicator using the copy exposure adjustment keys. Copy exposure indicator Description Data range Remarks Initial setting Exp.
2AV/X Maintenance item No. U100 Setting the surface potential Description Description Changes the surface potential by changing the grid control voltage. Also performs main charging. Purpose To set the surface potential or check main charging. Also used when reentering data after initializing the set data. Start 1. Press the start key. A selection item appears. 2. Select the item using the copy exposure adjustment keys. Display (copy exposure indicator) Description ——— (exp. 1) on1 (exp. 2) on2 (exp.
2AV/X Maintenance item No. U101 Setting high voltages Description Description Changes the developing bias voltage and transfer voltage by changing the developing bias control voltage and transfer control voltage. Also checks the transfer output voltage. Purpose To check and change high voltages other than the main charger voltage. Start 1. Press the start key. A selection item appears. 2. Select the item to be set or checked by lighting image mode LEDs using the image mode selection key.
2AV/X Maintenance item No. U109 Setting the drum type Description Description Sets the type of the drum installed in the copier. Purpose To prevent variations in halftone due to differences in drum sensitivity. Method Press the start key. Setting 1. Select the drum type using the zoom +/– keys. Display Description G H J Type G Type H Type J Initial setting: H 2. Press the start key. The setting is set. The indication for selecting a maintenance item No. appears.
2AV/X Maintenance item No. U111 Checking/clearing the drum drive time Description Description Displays the drum drive time for checking, clearing or changing a figure, which is used as a reference when correcting the high voltage based on time. Purpose To check the drum status. Also used to clear the drive time after replacing the drum. Method 1. Press the start key. 2. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.
2AV/X Maintenance item No. U131 Setting the toner sensor control voltage Description Description Displays or changes the toner sensor control voltage automatically set in maintenance item U130. Purpose To check the automatically set toner sensor control voltage. Also to change the toner density if an image is too dark or light. Method Press the start key. The current setting for the toner sensor control voltage is displayed. Setting 1. Change the setting using the zoom +/– keys.
2AV/X Maintenance item No. U155 Displaying the toner sensor output Description Description Displays the toner sensor output value, and related data. Purpose To check the toner sensor output value. Method 1. Press the start key. 2. Press the start key. Sampling starts. 3. Display each data by lighting the respective copy exposure indicator using the copy exposure adjustment keys. Copy exposure indicator Description Exp. 1 Exp.
2AV/X Maintenance Description item No. U157 Checking/clearing the developing drive time Description Displays the developing drive time for checking, clearing or changing a figure, which is used as a reference when correcting the toner control. It is automatically cleared when U130 is executed. Purpose To check the developing drive time after replacing the developer. Method 1. Press the start key. 2. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys.
2AV/X Maintenance item No. U161 Setting the fixing control temperature Description Description Changes the fixing control temperature. Purpose Normally no change is necessary. However, can be used to prevent curling or creasing of paper, or solve a fixing problem on thick paper. Method Press the start key. The screen for selecting an item is displayed. Setting 1. Select the item to be set by lighting a copy exposure indicator using the copy exposure adjustment keys. 2.
2AV/X Maintenance item No. U196 Turning the fixing heater on Description Description Turns the fixing heater on. Purpose To check fixing heater. Method 1. Press the start key. “on” appears. 2. Press the start key. The fixing heater turns on for 1 s and then turns off. Completion Press the stop/clear key when fixing heater is off. The indication for selecting a maintenance item No. appears. U199 Checking the fixing temperature Description Displays the fixing temperature and the ambient temperature.
2AV/X Maintenance Description item No. U204 Setting the presence or absence of a key card or key counter Description Sets the presence or absence of the optional key card or key counter. Purpose It is not necessary to run this maintenance item if a key card is installed on a 120 V specification machine. A key card is not available for 220 – 240 V specifications. Method Press the start key. Setting 1. Select the optional counter to be installed using the zoom +/– keys.
2AV/X Maintenance item No. U244 Checking the DF switches Description Description Displays the status of the switches in the optional DF. Purpose To check if switches in the optional DF operate correctly. Method 1. Press the start key. 2. Manually turn on and off each switch to check the status. When the on-status of a switch is detected, the original size indicator or other LED corresponding to the operated switch on the operation panel lights.
2AV/X Maintenance item No. U251 Checking/clearing the maintenance count Description Description Displays, clears and changes the maintenance count. Purpose To check the maintenance count. Also to clear the count during maintenance service. Method 1. Press the start key. 2. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys. Copy exposure indicator Description Setting range Initial setting Exp. 1 Exp. 2 Exp.
2AV/X Maintenance Description item No. U253 Switching between double and single counts Description Switches the count system for the total counter and other counters. Purpose According to user (copy service provider) request, select if A3/11" × 17" paper is to be counted as one sheet (single count) or two sheets (double count). Method Press the start key. Setting 1. Select double or single count using the zoom +/– keys.
2AV/X Maintenance item No. U255 Setting auto clear time Description Description Sets the time to return to initial settings after copying is complete. Purpose To be set according to frequency of use. Set to a comparatively long time for continuous copying at the same settings, and a comparatively short time for frequent copying at various settings. Method Press the start key. The current setting is displayed. Setting 1. Change the setting using the zoom +/– keys.
2AV/X Maintenance Description item No. U258 Switching copy operation at toner empty detection Description Selects if continuous copying is enabled after toner empty is detected, and sets the number of copies that can be made after the detection. Method Press the start key. The current setting is displayed. Start 1. Press the start key. A selection item appears. 2. Select the item by lighting image mode LEDs using the image mode selection key.
2AV/X Maintenance item No. U260 Changing the copy count timing Description Description Changes the copy count timing for the total counter and other counters. Purpose To be set according to user (copy service provider) request. If a paper jam occurs frequently in the eject section when the number of copies is counted at the time of paper ejection, copies are provided without copy counts. The copy service provider cannot charge for such copying. To prevent this, the copy timing should be made earlier.
2AV/X Maintenance item No. U332 Setting the size conversion factor Description Description Sets the factor for converting each paper size into A4/11" × 81/2". The black ratio is converted for the A4/ 11" × 81/2" size using the factor set in this maintenance item. Values set are displayed in the user simulation. Purpose To set the factor to convert the black ratio of each paper size for A4/11" × 81/2" size. Method 1. Press the start key. 2.
2AV/X Maintenance item No. U342 Setting the ejection restriction Description Description Sets or cancels the restriction on the number of sheets to be ejected continuously when the internal eject tray is selected as the eject location. When the restriction is set, the number of sheets that can be ejected continuously to the internal eject tray will be limited as shown below. No.
2AV/X Maintenance item No. U344 Setting preheat/energy saver mode Description Description Changes the control for preheat/energy saver mode. Purpose According to user request, selects which has priority, the recovery time from preheat or energy saver. Method Press the start key. Setting 1. Select control mode using the zoom +/– keys. Display Control in preheat mode InS (instant ready) Without decreasing the fixing control temperature, the display on the operation panel is turned off.
2AV/X Maintenance item No. U348 Setting the copy density adjustment range Description Description Selects the adjustment range for copy density from NORMAL and SPECIAL AREA (for wider range). Purpose To change the setting according to user request. When especially dark or light density is requested, set to SPECIAL AREA. Method Press the start key. Setting 1. Select the density range using the zoom +/– keys.
2AV/X Maintenance item No. U404 (cont.) Description DF leading edge margin (3 ± 2.5 mm) Ejection direction (reference) DF left margin (2.5 +1.5 –2.0 mm) DF right margin (2.5 +1.5 –2.0 mm) DF trailing edge margin (3 ± 2.5 mm) Figure 1-4-14 Correct margin amount 3. Press the start key. The value is set. 1-4 Interrupt copy mode While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
2AV/X Maintenance Description item No. U901 Checking/clearing copy counts by paper feed locations Description Displays or clears copy counts by paper feed locations. Purpose To check the time to replace consumable parts. Also to clear the counts after replacing the consumable parts. Method 1. Press the start key. 2. Select the paper feed location (group No.) for which the count is to be checked or cleared by lighting image mode LEDs using the image mode selection key. 3.
2AV/X Maintenance item No. U903 Checking/clearing the paper jam counts Description Description Displays or clears the jam counts by jam locations. Purpose To check the paper jam status. Also to clear the jam counts after replacing consumable parts. Method 1. Press the start key. 2. Display the jam code to check the count using the copy exposure adjustment keys. 3. Press the start key. The jam count appears.
2AV/X Maintenance Description item No. U905 Checking/clearing counts by optional devices Description Displays or clears the counts of the optional DF. Purpose To check the use of the DF. Also to clear the counts after replacing consumable parts. Method 1. Press the start key. 2. Select the count (group No.) to be checked or cleared by lighting image mode LEDs using the image mode selection key. 3.
2AV/X Maintenance item No. U910 Clearing the black ratio data Description Description Clears the accumulated black ratio data for A4/11" × 81/2" sheets. Purpose To clear data as required at times such as during maintenance service. Method 1. Press the start key. 2. Select “on” using the zoom +/– keys. Display Operation ––– on Canceling the clearing Executing the clearing 3. Press the start key. The accumulated black ratio data is cleared.
2AV/X Maintenance Description item No. U990 Checking/clearing the time for the exposure lamp to light Description Displays or clears the accumulated time for the exposure lamp to light. Purpose To check duration of use of the exposure lamp. Also to clear the accumulated time for the lamp after replacement. Method 1. Press the start key. 2. Change the indication of the copy quantity display by lighting a copy exposure indicator using the copy exposure adjustment keys.
2AV/X Maintenance item No. U993 Outputting a VTC-PG pattern Description Description Selects and outputs a VTC-PG pattern created in the copier. Purpose When performing respective image printing adjustments, used to check the machine status apart from that of the scanner with a non-scanned output VTC-PG pattern. Method 1. Press the start key. 2. Select the VTC-PG pattern to be output using the copy exposure adjustment keys.
2AV/X Maintenance item No. U998 Outputting the memory list Description Description Outputs the list of memory. Purpose To output the list as required. Method Press the start key. Entering the address 1. Select the item by lighting a copy exposure indicator using the copy exposure adjustment keys. Copy exposure indicator Description Setting range Exp. 1 Exp. 2 Exp. 3 Bit 16 to bit 23 of the address Bit 8 to bit 15 of the address Bit 0 to bit 7 of the address 00 to FF 00 to FF 00 to FF 2.
2AV/X 1-5-1 Paper misfeed detection (1) Paper misfeed indication When a paper misfeed occurs, the copier immediately stops copying and displays the jam location on the operation panel. Paper misfeed counts sorted by the detection condition can be checked in maintenance item U903. To remove paper jammed in the copier, open the front cover, paper conveying unit or drawer. Paper misfeed detection can be reset by opening and closing the respective covers to turn safety switch 1, 2 or 3* off and on.
2AV/X Jam code 10 11 12 13 14 15 16 20 21 22 30 40 50 51 51 60 61 70 71 72 73 73 74 75 76 80 81 82 83 1-5 1-5-2 Contents No paper feed from copier upper drawer No paper feed from copier lower drawer No paper feed from first optional drawer No paper feed from second optional drawer No paper feed from bypass Misfeed in copier vertical paper conveying section Misfeed in drawer vertical paper conveying section Multiple sheets in copier paper feed section Multiple sheets in copier vertical paper conveying se
2AV/X (2) Paper misfeed detection conditions ESW RSW 1-5 DFSW DFSW (ST) 1 Figure 1-5-3 1-5-3
2AV/X 1. Jam at power-on • One or more of the switches in the paper feed conveying system is on when the main switch is turned on (jam code 00). 2. Paper feed section • No paper feed from copier upper drawer (jam code 10) The registration switch (RSW) does not turn on within 980 ms of the upper paper feed clutch (PFCL-U) turning on.
2AV/X • Misfeed in copier vertical paper conveying section (jam code 15) The registration switch (RSW) does not turn on within 3200 ms of the drawer feed switch*1 (DFSW) turning on (when paper is fed from optional drawer 1). DFSW*1 OFF ON RSW 3200 ms OFF ON Timing chart 1-5-6 • Misfeed in drawer vertical paper conveying section (jam code 16) Drawer feed switch*1 (DFSW) does not turn on within 2240 ms of drawer feed switch (ST) 1*2 (DFSW (ST) 1) turning on (when paper is fed from optional drawer 2).
2AV/X Drawer feed switch (ST) 1*2 (DFSW (ST) 1) does not turn off within the time required to convey the length of the used paper size plus 2000 ms of turning on (when paper is fed from optional drawer 2). DFSW (ST) 1*2 OFF Paper size + 2000 ms ON Timing chart 1-5-11 • Multiple sheets in copier vertical paper conveying section (jam code 21) Drawer feed switch*1 (DFSW) does not turn off within 2240 ms of drawer feed switch (ST) 1*2 (DFSW (ST) 1) turning off (when paper is fed from optional drawer 2).
2AV/X 5. Eject section • Misfeed in eject section The eject switch (ESW) does not turn off within 2475 ms of the registration switch (RSW) turning off.
2AV/X (3) Paper misfeeds 1-5 Problem Causes/check procedures (1) A paper jam in the paper feed, conveying, fixing or eject section is indicated as soon as the main switch is turned on. A piece of paper torn from copy paper is caught around the registration switch, the drawer feed switch*1, drawer feed switch (ST) 1*2 or the eject switch. Check visually and remove any found. Defective registration switch.
2AV/X Problem (4) A paper jam in the paper feed section is indicated during copying (no paper feed from optional drawer 1*2). (5) A paper jam in the paper feed section is indicated during copying (no paper feed from optional drawer 2*2). (6) A paper jam in the paper feed section is indicated during copying (no paper feed from bypass). Causes/check procedures Corrective measures Paper in optional drawer 1*2 is extremely curled. Change the paper.
2AV/X Problem (7) A paper jam in the paper feed section is indicated during copying (jam in copier vertical paper conveying section). (8) A paper jam in the paper feed section is indicated during copying (jam in drawer vertical paper conveying section). 1-5 (9) A paper jam in the paper feed section is indicated during copying (multiple sheets in paper feed section). (10) A paper jam in the paper feed section is indicated during copying (multiple sheets in vertical paper conveying section).
2AV/X Problem (10) A paper jam in the paper feed section is indicated during copying (multiple sheets in vertical paper conveying section). (11) A paper jam in the paper feed section is indicated during copying (multiple sheets in bypass). (12) A paper jam in the paper conveying section is indicated during copying (jam in registration/ transfer section). (13) A paper jam in the fixing section is indicated during copying (jam in fixing section).
2AV/X 1-5-2 Self-diagnosis (1) Self-diagnostic function This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled. On the 20 cpm copier, the problem is displayed as a code consisting of "C" followed by a number between 011 and 821, indicating the nature of the problem. A message is also displayed requesting the user to call for service. On the 15 cpm copier, "C" and a number between 011 and 821 altenates, indicating the nature of the problem.
2AV/X Code Contents C100 Exposure lamp problem • Check the CCD input value for the lighting status of the exposure lamp 100 ms after the exposure lamp is lit and the carriage is moved to the shading position. If the exposure lamp does not light, turn off the lamp. After 500 ms, light the lamp again and, a further 500 ms later, check the CCD input. The exposure lamp does not light after 5 retries. C104 C200 C310 C400 Optical system problem • After AGC, correct input is not obtained at CCD.
2AV/X Code Contents C401 Polygon motor steady-state problem • The polygon motor rotation is not stable for 400 ms after the polygon motor rotation has been stabilized. C420 C510 BD steady-state problem • The VTC detects a BD error for 800 ms after the polygon motor rotation has been stabilizad. Main charger problem • MC ALM signal is detected continuously for 800 ms when MC REM signal is turned on. 1-5 C610 1-5-14 Broken fixing heater wire • Warm-up does not end within 90 s.
2AV/X Code Contents C620 Abnormally low fixing unit thermistor temperature • The fixing temperature remains below 100˚C/212˚F for 10 s during copying. C630 C710 C730 Remarks Causes Check procedures/corrective measures Fixing heater installed incorrectly. Check and reinstall if necessary. Broken fixing heater wire. Check for continuity. If none, replace fixing heater. Poor contact in the fixing unit thermistor connector terminals.
2AV/X Code Contents C731 Short-circuited external temperature thermistor • The input voltage is below 0.5 V. Remarks Causes Check procedures/corrective measures Poor contact of the humidity sensor PCB connector terminals. Reinsert the connector. Also check for continuity within the connector cable. If none, repair or replace the cable. Defective external temperature thermistor. Replace the humidity sensor PCB.
2AV/X 1-5-3 Image formation problems (1) No image appears (entirely white). (2) No image appears (entirely black). (3) Image is too light. (4) Background is visible. See page 1-5-18 See page 1-5-18 (5) A white line appears longitudinally. (6) A black line appears longitudinally. (7) A black line appears laterally. (8) One side of the copy image is darker than the other. See page 1-5-19 See page 1-5-20 See page 1-5-20 See page 1-5-20 (9) Black dots appear on the image.
2AV/X (1) No image appears (entirely white). Causes 1. No transfer charging. Causes Check procedures/corrective measures 1. No transfer charging. A. Broken transfer wire. Replace or repair the wire. B. The connector terminals of the high-voltage transformer PCB make poor contact. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. C. Defective main PCB Check if CN4-5 on the main PCB goes low when maintenance item U101 is run.
2AV/X (3) Image is too light. Causes 1. Insufficient toner. 2. Deteriorated developer. 3. Dirty or deteriorated drum. Causes Check procedures/corrective measures 1. Insufficient toner. If the display shows the message requesting toner replenishment, replace the cartridge. 2. Deteriorated developer. Check the number of copies made with the current developer. If it has reached the specified limit, replace the developer. 3. Dirty or deteriorated drum.
2AV/X (6) A black line appears longitudinally. Causes 1. Dirty contact glass. 2. Dirty or flawed drum. 3. Deformed or worn cleaning blade. 4. Dirty scanner mirror. Causes Check procedures/corrective measures 1. Dirty contact glass. Clean the contact glass. 2. Dirty or flawed drum. Clean the drum or, if it is flawed, replace it (see page 1-6-43). 3. Deformed or worn cleaning blade. Replace the cleaning blade (see page 1-6-46). 4. Dirty scanner mirror. Clean the scanner mirror.
2AV/X (9) Black dots appear on the image. Causes 1. Dirty or flawed drum. 2. Dirty contact glass. 3. Deformed or worn cleaning blade. Causes Check procedures/corrective measures 1. Dirty or flawed drum. Clean the drum or, if it is flawed, replace it (see page 1-6-43). 2. Dirty contact glass. Clean the contact glass. 3. Deformed or worn cleaning blade. Replace the cleaning blade (see page 1-6-46). (10) Image is blurred. Causes 1. Scanner moves erratically. 2. Deformed press roller. 3.
2AV/X (12) The leading edge of the image is sporadically misaligned with the original. Causes 1. Registration clutch, bypass paper feed clutch or paper feed clutch installed or operating incorrectly. Causes Check procedures/corrective measures 1. Registration clutch, bypass paper feed clutch Check the installation position and operation of the registration or paper feed clutch installed or operating clutch, bypass paper feed clutch and paper feed clutches. If any of incorrectly.
2AV/X Causes 1. Paper damp. 2. Paper creased. 3. Drum condensation. 4. Flawed drum. (15) Image is partly missing. Causes Check procedures/corrective measures 1. Paper damp. Check the paper storage conditions. 2. Paper creased. Replace the paper. 3. Drum condensation. Clean the drum. 4. Flawed drum. Replace the drum (see page 1-6-43). (16) Fixing is poor. Causes 1. Wrong paper. 2. Defective pressure springs. 3. Flawed press roller. Causes 1. Wrong paper.
2AV/X (19) Image is not square. Causes 1. Laser scanner unit positioned incorrectly. 2. Image scanning unit positioned incorrectly. Causes Check procedures/corrective measures 1. Laser scanner unit positioned incorrectly. Adjust the installation position of the laser scanner unit (see page 1-6-26). 2. Image scanning unit positioned incorrectly. Adjust the installation position of the image scanning unit (see page 1-6-30). (20) Image contrast is low (carrier scattering). Causes 1.
2AV/X 1-5-4 Electrical problems Problem Causes Check procedures/corrective measures No electricity at the power outlet. Measure the input voltage. The power cord is not plugged in properly. Check the contact between the power plug and the outlet. The front cover, paper conveying unit and/or lower drawer left cover*1 are/is not closed completely. Check the front cover, paper conveying unit and lower drawer left cover*1. Broken power cord. Check for continuity. If none, replace the cord.
2AV/X Problem Causes Check procedures/corrective measures (7) Cooling fan motor 3 does not operate. Broken cooling fan motor 3 coil. Check for continuity across the coil. If none, replace cooling fan motor 3. Poor contact in the cooling fan motor 3 connector terminals. Reinsert the connector. Also check for continuity within the connector cable. If none, repair or replace the cable. (8) The drawer drive motor*1 does not operate. Broken drawer drive motor*1 coil.
2AV/X Problem Causes Check procedures/corrective measures Poor contact in the exposure lamp connector terminals. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Defective inverter PCB. If the exposure lamp does not turn on when CN24-1 and CN24-2 on the inverter PCB are held low, replace the inverter PCB. (17) The exposure lamp does not turn off. Defective inverter PCB.
2AV/X Problem 1-5 Causes Check procedures/corrective measures Original is not placed correctly. Check the original and correct if necessary. Poor contact in the original size detection sensor connector terminals. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Defective original size detection sensor. Check if the sensor operates correctly. If not, replace it.
2AV/X Problem Causes Check procedures/corrective measures (28) The size of paper in the upper drawer is not displayed correctly. Poor contact in upper paper size switch 4 connector terminals. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Defective upper paper size switch 4. Check if CN9-8 on the main PCB goes low when upper paper size switch 4 is turned on. If not, replace upper paper size switch 4.
2AV/X 1-5-5 Mechanical problems Problem Causes/check procedures Corrective measures Check if the surfaces of the following pulleys are dirty with paper powder: upper paper feed pulleys, lower paper feed pulleys* and bypass paper feed pulleys. Clean with isopropyl alcohol. Check if the paper feed pulleys are deformed. Check visually and replace any deformed pulleys (see page 1-6-3).
2AV/X 1-6-1 Precautions for assembly and disassembly (1) Precautions • Be sure to turn the main switch off and disconnect the power plug before starting disassembly. • When handling PCBs, do not touch connectors with bare hands or damage the board. • Do not touch any PCB containing ICs with bare hands or any object prone to static charge. • Use only the specified parts to replace the fixing unit thermostat. Never substitute electric wires, as the copier may be seriously damaged.
2AV/X (2) Running a maintenance item Start Enter “10871087” using the numeric keys. Enter the maintenance item number using the cursor up/down keys (20 cpm), the zoom +/– keys (15 cpm) or numeric keys. Maintenance mode is entered. The maintenance item is selected. Press the start key. The selected maintenance item is run. Press the stop/clear key.
2AV/X 1-6-2 Paper feed section (1) Detaching and refitting the upper and lower paper feed pulleys Follow the procedure below to replace the paper feed pulleys. Procedure • Upper paper feed pulleys 1. Open the bypass tray and paper conveying unit and then remove the rear and rear left covers. Pull out the upper drawer. 2. Remove the screw and then the handle (rear side of the machine). 3. Remove the two screws, release the wires from the clamps and then detach the shaft handle retainer at the machine rear.
2AV/X 6. Open the front cover and remove the image formation unit (see page 1-6-40). 7. Remove the stop ring from the paper feed shaft unit (machine front). Stop ring Figure 1-6-4 8. Push the paper feed shaft unit toward the machine rear (in the direction of 1) and remove the unit from the lower front side (in the direction of 2). 1-6 Paper feed shaft unit Figure 1-6-5 9. Remove the screw holding each of the upper paper feed pulleys and then the pulleys. 10.
2AV/X • Lower peper feed pulleys (optional for the 15 cpm copier) 1. Open the lower drawer left cover and pull the lower drawer out. 2. Remove the two screws holding the rear cover of the lower drawer and then the cover. 3. Turn the drawer drive motor clockwise and rotate the paper feed shaft unit so that the screws holding the lower paper feed pulleys can be seen when the left cover is opened. Drawer drive motor Figure 1-6-7 4.
2AV/X (2) Detaching and refitting the bypass paper feed pulley Follow the procedure below to replace the bypass paper feed pulley. Procedure 1. Open the bypass tray, paper conveying unit and front cover and then remove the image formation unit (see page 1-6-40). 2. Remove the screw and then the fulcrum pin. Fulcrum pin Figure 1-6-9 3. Disconnect the connector and remove the paper conveying unit. 1-6 Paper conveying unit Connector Figure 1-6-10 4.
2AV/X 5. Remove the rear screw of the bypass paper feed pulley and then the pulley. Bypass paper feed pulley Figure 1-6-12 6. Replace the bypass paper feed pulley and refit all the removed parts. • When refitting, check that the cam on the rear of the shaft is correctly positioned (see figure 1-6-13).
2AV/X (3) Detaching and refitting the left registration cleaner assembly Follow the procedure below to replace the left registration cleaner assembley. Procedure 1. Open the bypass tray and paper conveying unit. 2. Remove the transfer roller unit (see page 1-647). 3. While rotating the left registration roller in the direction of the arrow in the diagram, remove the left registration cleaner assembly. 4. Replace the left registration cleaner assembly and refit all the removed parts.
2AV/X (5) Detaching and refitting the bypass paper width switch Follow the procedure below to replace the bypass paper width switch. Procedure 1. Remove the paper conveying unit and lower left cover (see page 1-6-6). 2. Remove the bypass tray assembly. 3. Remove the two screws and then the upper bypass cover. Upper bypass cover Figure 1-6-16 4. Remove the gear and rack plate and detach the connector and then remove the bypass paper width switch.
2AV/X (6) Adjustment after roller and clutch replacement Perform the following adjustment after refitting rollers and clutches. (6-1) Adjusting the leading edge registration of image printing Make the following adjustment if there is a regular error between the leading edges of the copy image and original. U066 (P. 1-6-36) U034 U071 (P. 1-4-14) Caution: Check the copy image after the adjustment. If the image is still incorrect, perform the above adjustments in maintenance mode.
2AV/X • 15 cpm Leading edge registration Start Correct image Output example 1 Output example 2 Enter maintenance mode. Figure 1-6-19b Enter “034” using the numeric keys. ● Image mode selection key Photo Text Text indicator : Leading edge registration adjustment is on Press the start key. Press the image mode selection key to light the text indicator. Select the items to be adjusted using the copy exposure adjustment keys.
2AV/X (6-2) Adjusting the leading edge registration for memory image printing Make the following adjustment if there is a regular error between the leading edge of the copy image and the leading edge of the original during memory copying. U053 (P. 1-4-11) U034 (P. 1-6-13) U065 (P. 1-6-32) U066 (P. 1-6-36) U407 Caution: Before making the following adjustment, ensure the above adjustments have been made in maintenance mode. Procedure Start Enter maintenance mode.
2AV/X (6-3) Adjusting the center line of image printing Make the following adjustment if there is a regular error between the center lines of the copy image and original when paper is fed from the drawer. U067 (P. 1-6-37) U034 U072 (P. 1-4-15) Caution: Check the copy image after the adjustment. If the image is still incorrect, perform the above adjustments in maintenance mode. Procedure • 20 cpm Center line of printing Start Enter maintenance mode. Correct image Enter “034” using the numeric keys.
2AV/X • 15 cpm Center line of printing Correct image Output example 1 Start Figure 1-6-21b Enter maintenance mode. Enter “034” using the numeric keys. Photo Text Photo and text indicators : Center line adjustment are on ● Image mode selection key Press the start key. Press the image mode selection key to light the photo and text indicators.
2AV/X (6-4) Adjusting the margins for printing Make the following adjustment if the margins are not correct. U403 (P. 1-6-38) U402 U404 (P. 1-4-46) Caution: Check the copy image after the adjustment. If the margins are still incorrect, perform the above adjustments in maintenance mode. Procedure • 20 cpm Start Enter maintenance mode. Enter “402” using the numeric keys.
2AV/X • 15 cpm Start Enter maintenance mode. Enter “402” using the numeric keys. ● Copy exposure adjustment keys Press the start key. Setting 1 : printer leading edge margin 2 : printer left/right margins 3 : printer trailing edge margin (standard size) 4 : printer trailing edge margin (non-standard size) Select the item to be adjusted using the copy exposure adjustment keys. Press the interrupt key. Press the start key. The new setting is stored.
2AV/X (6-5) Adjusting the amount of slack in the paper Make the following adjustment if the leading edge of the copy image is missing or varies randomly, or if the copy paper is Z-folded. Procedure • 20 cpm Start Original Copy example 1 Copy example 2 Enter maintenance mode. Figure 1-6-22a Enter “051” using the numeric keys. • Amount of slack in the paper at the registration roller DECK : Upper drawer BYPASS : Bypass tray DECK2 : Lower drawer DUPLEX : Duplex copying (second face) Press the start key.
2AV/X • 15 cpm Original Copy example 2 Figure 1-6-22b Start Enter maintenance mode. Copy example 1 ● Image mode selection key Enter “051” using the numeric keys. Photo Text Text indicator : Amount of slack at the is on paper registration roller ● Image mode selection key Photo Text Photo and Text : Amount of slack at indicators are on the feed roller Press the start key. Press the image mode selection key to light the text indicator or the photo and text indicators.
2AV/X 1-6-3 Optical section (1) Detaching and refitting the exposure lamp Replace the exposure lamp as follows. Procedure 1. Remove the original cover or the DF. 2. Remove the five screws holding the right cover. While sliding the right cover in the direction of the arrow in the diagram, remove the contact glass. Contact glass Right cover Figure 1-6-23 3. Move the mirror 1 frame to the cutouts of the machine. Caution: When moving the mirror 1 frame, do not touch the exposure lamp nor the inverter PCB.
2AV/X (2) Detaching and refitting the scanner wires Take the following procedure when the scanner wires are broken or to be replaced. Caution: After replacing the scanner wires, proceed to (4-1) Adjusting the skew of the laser scanner unit (see page 1-6-26) and (6) Adjusting the position of the ISU (see page 1-6-30). (2-1) Detaching the scanner wires Inverter wire guide plate Procedure 1. Remove the exposure lamp (see page 1-619). 2.
2AV/X (2-2) Fitting the scanner wires Caution: When fitting the wires, be sure to use those specified below. Machine front: P/N 2AV1219 (black) Machine rear: P/N 2AV1220 (gray) Fitting requires the following tools: Two frame securing tools (P/N 2AV6808) Two scanner wire stoppers (P/N 3596811) Procedure 1. Remove the three screws and detach the connector and then remove the scanner motor unit. Scanner motor unit Connector Figure 1-6-29 2.
2AV/X 4. Insert the locating ball on each of the scanner wires into the hole in the respective scanner wire drum and wind the scanner wire three turns inward and four turns outward. • With the locating ball as the reference point, wind the shorter end of each of the wires inward. 5. Secure the scanner wires using the scanner wire stoppers. Scanner wire stoppers Three turns Four turns Three turns Locating ball Four turns Scanner wire drum Figure 1-6-31 1-6 6.
2AV/X 8. Loop the inner ends of the scanner wires around the grooves in the pulleys at the right of the scanner unit, winding from below to above. ......................................................................................................................... 1 9. Loop the scanner wires around the inner grooves in the pulleys on the mirror 2 frame, winding from above to below. ...........................................................................................................................
2AV/X (3) Detaching and refitting the laser scanner unit Take the following procedure when the laser scanner unit is to be checked or replaced. Procedure 1. Open the front cover. 2. Remove the two screws holding the eject tray and then the tray. Eject tray Figure 1-6-35 3. Remove the two screws and detatch the two connectors and then remove the fan duct. Connector 1-6 Fan duct Figure 1-6-36 4. Remove the three screws and detatch the two connectors and then remove the laser scanner unit.
2AV/X 5. Check or replace the laser scanner unit and refit all the removed parts. Caution: Before fitting the new laser scanner unit, fit the LSU front spacer and LSU right spacer by orienting the markings correctly and using the correct layer as specified on the label on the laser scanner unit cover.
2AV/X (4) Adjusting the skew and vertical shifting of the laser scanner unit (4-1) Adjusting the skew of the laser scanner unit Perform the following adjustment if the leading and trailing edges of the copy image are laterally skewed (lateral squareness not obtained). Caution: • After adjusting the skew of the laser scanner unit, make a test copy and check the copy image. If lateral squareness is still not obtained, perform "(6) Adjusting the position of the ISU" (see page 1-6-30).
2AV/X (4-2) Adjusting the vertical shifting of the laser scanner unit Perform the following adjustment if the copy image shifts vertically due to vertical shifting of the position of the laser scanner unit. Vertical shifting : X (mm) Start Enter maintenance mode. Correct image Enter “993” using the numeric keys. Copy example 1 Copy example 2 Figure 1-6-40 Press the start key. • 20 cpm Select “VTC-PG2” using the cursor up/down keys • 15 cpm Select “2” using the copy exposure adjustment keys.
2AV/X (5) Detaching and refitting the ISU (reference) Take the following procedure when the ISU is to be checked or replaced. Caution: After fitting the ISU, proceed to (6) Adjusting the position of the ISU (see page 1-6-30). ISU installation requires the following tools: Two positioning pins (P/N 1856812) Procedure • Detaching the ISU 1. Remove the contact glass (see page 1-6-19). 2. Remove the rear and shield covers and detach connectors CN22 and CN23 on the main PCB.
2AV/X • Refitting the ISU 1. Fit the ISU using the two positioning pins. 2. Secure the ISU using the four screws. 3. Remove the two positioning pins and refit all the removed parts.
2AV/X (6) Adjusting the position of the ISU (reference) Perform the following adjustment if the leading and trailing edges of the copy image are laterally skewed (lateral squareness not obtained). Caution: • Be sure to perform “(4-1) Adjusting the skew of the laser scanner unit” (page 1-6-26) first. • Before making the following adjustment, output a VTC-PG2 pattern in maintenance item U993 to use as the original for the adjustment.
2AV/X (7) Adjusting the longitudinal squareness (reference) Perform the following adjustment if the copy image is longitudinally skewed (longitudinal squareness not obtained). Caution: • Adjust the amount of slack in the paper (page 1-6-17) first. Check for the longitudinal squareness of the copy image, and if it is not obtained, perform the longitudinal squareness adjustment.
2AV/X (8) Adjusting magnification of the scanner in the main scanning direction Perform the following adjustment if the magnification in the main scanning direction is not correct. U053 (P. 1-4-11) U065 (main scanning direction) U065 (auxiliary scanning direction) (P. 1-6-34) U067 (P. 1-6-37) Caution: Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode.
2AV/X • 15 cpm Start Original Enter maintenance mode. Copy example Copy example 2 Figure 1-6-49b Enter “065” using the numeric keys. Press the start key. Select “1” (main scanning direction using the copy exposure adjustment keys). ● Copy exposure adjustment keys Setting 1 : Main scanning direction 2 : Auxiliary scanning direction Press the start key. Press the interrupt key. The new setting is stored. Place an original and press the start key to make a test copy.
2AV/X (9) Adjusting magnification of the scanner in the auxiliary scanning direction Perform the following adjustment if the magnification in the auxiliary scanning direction is not correct. U053 (P. 1-4-11) U065 (main scanning direction) (P. 1-6-32) U065 (auxiliary scanning direction) U070 (P. 1-4-14) Caution: Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode. Procedure • 20 cpm Start Enter maintenance mode.
2AV/X • 15 cpm Start Original Enter maintenance mode. Copy example 1 Copy example 2 Figure 1-6-50b Enter “065” using the numeric keys. Press the start key. Select “2” (auxiliary scanning direction using the copy exposure adjustment keys). ● Copy exposure adjustment keys Setting 1 : Main scanning direction 2 : Auxiliary scanning direction Press the start key. Press the interrupt key. The new setting is stored. Place an original and press the start key to make a test copy.
2AV/X (10) Adjusting the scanner leading edge registration Perform the following adjustment if there is regular error between the leading edges of the copy image and original. U034 (P. 1-6-10) U071 (P. 1-4-14) U066 Caution: Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode. Procedure Scanner leading edge registration Start Enter maintenance mode. Original Enter “066” using the numeric keys. Copy example 1 Figure 1-6-51 Press the start key.
2AV/X (11)Adjusting the scanner center line Perform the following adjustment if there is a regular error between the center lines of the copy image and original. U034 (P. 1-6-10) U071 (P. 1-4-14) U067 Caution: Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode. Procedure Scanner center line Start Enter maintenance mode. Original Copy example 1 Enter “067” using the numeric keys. Copy example 2 Figure 1-6-52 Press the start key.
2AV/X (12) Adjusting the margins for scanning an original on the contact glass Perform the following adjustment if the margins are not correct. U402 (P. 1-6-15) U404 (P. 1-4-46) U403 Caution: Before making the following adjustment, ensure that the above adjustments have been made in maintenance mode. Procedure • 20 cpm Start Enter maintenance mode. Enter “403” using the numeric keys. Press the start key. Select the item to be adjusted using the cursor up/down keys.
2AV/X • 15 cpm Start Enter maintenance mode. Enter “403” using the numeric keys. Press the start key. Select the item to be adjusted using the copy exposure adjustment keys. ● Copy exposure adjustment keys Setting 1 : scanner left margin 2 : scanner leading edge margin 3 : scanner right margin 4 : scanner trailing edge margin Press the start key. Press the interrupt key. The new setting is stored. Press the start key to make a test copy.
2AV/X 1-6-4 Main charging section (1) Detaching and refitting the charger assembly Follow the procedure below to replace the charger assembly. Prucedure 1. Open the bypass tray, paper conveying unit and front cover, and then remove the toner cartridge and waste toner tank. 2. Remove the two screws and disconnect the connector. While pressing the hook on the front image formation cover, pull the image formation unit out. Connector Hook Image formation unit Figure 1-6-53 3.
2AV/X (2) Replacing the tungsten wire (reference) Take the following procedure when the tungsten wire is broken or to be replaced. Precautions • Use the specified tungsten wire (P/N: 2AR1016). • The part of the wire wrapped around the charger spring must not protrude over the L-shaped hook in the main charger rear housing. • Use clean, undamaged tungsten wire. • Keep the tungsten wire taut by stretching it. • Clean the shield grid with a wet cloth followed by a dry cloth when replacing the tungsten wire.
2AV/X 6. Wind the new tungsten wire six turns around one end of the charger spring and trim the end. • The width of the coiled tungsten wire and the cut end must be less than 2 mm. 7. Hook the other end of the charger spring onto the charger terminal of the main charger rear housing. 8. Pass the tungsten wire through the V-shaped notch in the tungsten wire retainer pin and stretch it taut.
2AV/X 1-6-5 Drum section (1) Detaching and refitting the drum Follow the procedure below to replace the drum. Cautions: • Avoid direct sunlight or strong light when detaching and fitting the drum. • Hold the drum at the ends and never touch the drum surface. • After removing the drum, keep it in the drum case or storage bag to protect the surface from light. Procedure 1. Remove the image formation unit (see page 1-6-40). 2. Remove the two screws holding the transfer right guide and then the guide. 3.
2AV/X 1-6-6 Developing section (1) Adjusting the position of the doctor blade (reference) Perform the following adjustment if carrier or background appears on the copy image. Procedure 1. Remove the image formation unit (see page 1-6-40). 2. Remove the charger assembly (see page 16-40). 3. Remove the screw holding the MC rail and then the rail. MC rail Figure 1-6-60 4. Remove the screw holding the doctor blade cover and then the cover.
2AV/X 1-6-7 Transfer section (1) Detaching and refitting the transfer roller assembly Follow the procedure below to replace the transfer roller assembly. Procedure 1. Open the bypass tray and paper conveying unit. 2. Remove the transfer roller assembly. Caution: Remove the transfer roller assembly carefully to prevent the residual toner in the transfer roller assembly from spilling. 3. Replace the transfer roller assembly and refit all the removed parts.
2AV/X 1-6-8 Cleaning section (1) Detaching and refitting the cleaning blade Follow the procedure below to replace the cleaning blade. Procedure 1. Remove the image formation unit and the charger assembly (see page 1-6-40). 2. Remove the MC rail (see page 1-6-44). 3. Remove the drum (see page 1-6-43). 4. Remove the three screws holding the cleaning blade and then the blade. Caution: When detaching and refitting the cleaning blade, take care not to touch the blade. Cleaning blade Figure 1-6-64 5.
2AV/X (2) Detaching and refitting the drum separation claw assemblies Follow the procedure to replace the drum separation claw assemblies. Procedure 1. Remove the image formation unit (see page 1-6-40). 2. Remove the screw holding each of the drum separation claw assemblies and then the assemblies. 3. Remove the drum separation claws from the drum separation claw assemblies. 4. Replace the drum separation claws and refit all the removed parts.
2AV/X 1-6-9 Fixing section (1) Detaching and refitting the fixing unit Follow the procedure below to check or replace the fixing unit. Procedure 1. Open the bypass tray, paper conveying unit and front cover, and then remove the rear cover, left front cover and left rear cover. 2. Detach the three fixing unit connectors (blue, green and yellow) at the machine rear. Connector (blue) Connector (green) Connector (yellow) Figure 1-6-68 1-6 3.
2AV/X (2) Detaching and refitting the fixing unit thermistor Follow the procedure below to replace the fixing unit thermistor. Procedure 1. Remove the fixing unit (see page 1-6-48). 2. Remove the screw and detach the connector, and then remove the fixing unit thermistor. 3. Replace the fixing unit thermistor and refit all the removed parts.
2AV/X (4) Detaching and refitting the fixing heater Follow the procedure below to replace the fixing heater. Procedure 1. Remove the fixing unit (see page 1-6-48). 2. Detach the fixing heater connector. Connector Figure 1-6-72 3. Remove the screw holding each of the fixing heater front and rear retainers and then the retainers. 1-6 Fixing heater front retainer Fixing heater rear retainer Figure 1-6-73 4. Pull out the fixing heater from the fixing unit. 5.
2AV/X (5) Detaching and refitting the heat roller Follow the procedure below to replace the heat roller. Procedure 1. Remove the fixing unit (see page 1-6-48). 2. Remove the fixing unit thermistor, fixing heater and heat roller separation claw assemblies (see pages 1-6-49 and 50). 3. Remove the two screws holding the eject guide and then the guide. Eject guide Figure 1-6-75 4. Remove the two stop rings, collar, gear, spring pin and bushing on the rear of the eject roller and then remove the eject roller.
2AV/X 6. Remove the four screws holding the fixing housing and then the housing. Fixing housing Figure 1-6-78 7. Remove the pressure spring from each of the front and rear ends of the fixing unit. 1-6 Press springs Figure 1-6-79 8. Remove the C ring, gear and bushing on the rear and the C ring and bushing on the front of the heat roller, and then remove the heat roller. 9. Replace the heat roller and refit all the removed parts.
2AV/X (6) Detaching and refitting the press roller Follow the procedure below to replace the press roller. Procedure 1. Remove the fixing unit (see page 1-6-48). 2. Remove the heat roller (see page 1-6-51). 3. Remove the screw holding the fixing guide plate and then the plate. Fixing guide plate Figure 1-6-81 4. Remove the press roller and two bearings. 5. Replace the press roller and refit all the removed parts.
2AV/X 1-7-1 Replacing the main PCB Main PCB replacement requires the following tools: Memory tool PCB (P/N 2AV68030) NVRAM (P/N NAC06020) Procedure • Before replacing the main PCB (backing up the machine data) 1. Turn the main switch off and disconnect the power plug. 2. Remove the two screws holding the upper shield cover and then the cover. 3. If the optional memory board is installed, remove the memory board (15 cpm copier only). Upper shield cover Figure 1-7-1 4. Fit the NVRAM to the memory tool PCB.
2AV/X 6. Insert the power plug and turn the main switch on. LED1 (green) on the memory tool PCB flashes (on for 1 s → off for 1 s) for approximately 10 seconds and the machine data on the SRAM of the main PCB will be backed up on the NVRAM. 7. When flashing LED1 (green) on the memory tool PCB remains lit, backing up of machine data is complete. If an error occurs while the machine data is being backed up, LED1 (green) flashes and goes off in the patterns given below according to the nature of the error.
2AV/X 1-7-2 Upgrading the firmware on the main PCB Firmware upgrading requires the following tools: Flash tool assembly (P/N 35968010) Memory tool PCB (P/N 2AV68030) Master ROMs 15 cpm: Main ROM 1 IC (P/N 2AV68060) 20 cpm: Main ROM IC (P/N 2AX68010) Procedure 1. Turn the main switch off and disconnect the power plug. 2. Remove the two screws holding the upper shield cover and then the cover. Upper shield cover Figure 1-7-3 3.
2AV/X 7. Insert the power plug and turn the main switch on. LED2 (green) on the flash tool assembly flashes and upgrading of the master ROM starts. 8. When flashing LED2 (green) remains lit after approximately 30 to 40 seconds, upgrading of the master ROM is complete. 9. Turn the main switch on. 10. Remove the memory tool PCB. Important: “C021” may be indicated on the operation panel while upgrading the firmware. However, it does not interfere with the upgrading operation.
2AV/X 1-7-3 Upgrading the firmware on the operation unit PCB (20 cpm copier only) Firmware upgrading requires the following tools: Flash tool assembly (P/N 35968010) Master ROMs Inch specifications Operation unit ROM 1 IC (P/N 2AX68020) Metric specifications Operation unit ROM 1 IC (P/N 2AX68040) Procedure 1. Turn the main switch off and disconnect the power plug. 2. Remove the two screws holding the upper shield cover and then the cover. Upper shield cover Figure 1-7-5 3.
2AV/X 1-7-4 Adjustment-free variable resistors (VR) The variable resistors listed below are set at the factory prior to shipping and cannot be adjusted in the field.
2AV/X 2-1-1 Paper feed section The paper feed section consists of the primary feed and secondary feed subsections. Primary feed conveys paper from the upper drawer, lower drawer or bypass tray to the left and right registration rollers, at which point secondary feed takes place and the paper travels to the transfer section in sync with the printing timing. Each drawer can hold up to 250 sheets of paper. The bypass tray can hold up to 50 sheets of paper.
2AV/X MPCB RCL CN4-10 RSW CN3-7 PFCL-U CN4-14 CN3-10 PSW-U BYPPFCL CN4-12 CN6-2 BYPPSW CN8-3 PFCL-L* CN8-15 PSW-L* *Optional for the 15 cpm copier.
2AV/X Start key DM 263 ms RCL 300 ms 100 ms BYPPFCL 3000 ms RSW Original: A5R, copy paper: A3/11" × 17", magnification ratio 200% Timing chart 2-1-2 Paper feed from the bypass tray a: When the start key is pressed, the drive motor (DM) turns on. b: 3000 ms after the drive motor (DM) turns on, the bypass paper feed clutch (BYPPFCL) turns on and the bypass paper feed pulleys rotate to start primary paper feed.
2AV/X 2-1-2 Main charging section The main charging section consists of the drum and main charger assembly. The drum is electrically charged by means of a grid to form a latent image on the surface. The shield grid ensures that the charge is applied uniformly.
2AV/X HVTPCB MC GRID CN1-9 CN1-7 CN1-4 Drum CN1-1 MPCB 24 V DC MC REM GRID CONT MC ALM CN4-1 CN4-3 CN4-6 CN4-9 Figure 2-1-5 Main charging section block diagram Start key DM MC REM 500 ms 840 ms ESW Timing chart 2-1-3 Main charging a: 500 ms after the start key is pressed, main charging (MC REM) starts. b: 840 ms after the trailing edge of the paper turns the eject switch (ESW) off, main charging (MC REM) is completed.
2AV/X 2-1-3 Optical section The optical section consists of the scanner, mirror frames and the image scanning unit for scanning and the laser scanner unit for printing.
2AV/X (1) Original scanning The original image is illuminated by the exposure lamp (EL) and scanned by the CCD PCB (CCDPCB) in the image scanning unit via the three mirrors, the reflected light being converted to an electrical signal. The scanner and mirror frames travel to scan on the optical rails on the front and rear of the machine to scan from side to side. The speed of the mirror frames is half the speed of the scanner.
2AV/X (2) Image printing The image data scanned by the CCD PCB (CCDPCB) is processed on the main PCB (MPCB) and transmitted as image printing data to the laser scanner unit (LSU). By repeatedly turning the laser on and off, the laser scanner unit forms a latent image on the drum surface.
2AV/X Drum Figure 2-1-9 Laser scanner unit (2) 1 Laser diode: Generates the laser beam which forms a latent image on the drum. 2 Collimator lens: Collimates the diffused laser beam emitted from the laser diode to convert it into a cylindrical beam. 3 Cylindrical lens: Shapes the collimated laser beam to suit the printing resolution. 4 Lens: Shapes the collimated laser beam to suit the printing resolution.
2AV/X 2-1-4 Developing section The developing section consists of the developing unit and the toner cartridge. The developing unit consists of the developing roller where a magnetic brush is formed, the doctor blade and the developing spirals that agitate the developer. Toner from the toner cartridge and residual toner collected in the cleaning section are conveyed to the waste toner tank.
2AV/X (1) Formation of magnetic brush The developing roller consists of a magnet roller with five poles and a sleeve roller. Rotation of the sleeve roller around the magnet roller entrains developer, which in turn forms a magnetic brush at pole N1 on the magnet roller. The height of the magnetic brush is regulated by the doctor blade; the developing result is affected by the position of the poles on the magnet roller and the position of the doctor blade.
2AV/X (2) Toner density detection by the toner sensor The toner sensor (TNS) detects the toner density. As the developer passes by the sensor section of the toner sensor, the toner sensor detects the ratio of toner to carrier in the developer and converts it into a voltage. When more toner is used, the ratio of toner to carrier decreases and the toner sensor output voltage increases. When the ratio drops below the specified value, the increase in toner sensor output voltage triggers toner replenishing.
2AV/X (4) Correcting the toner sensor control voltage The toner sensor control voltage is corrected based on the absolute humidity and the total drive motor time so that the toner density is kept constant regardless of the changes in humidity and the total drive motor time.
2AV/X • Correction based on the total drive motor time The toner sensor control voltage is also corrected based on the total time the drive motor (DM) has been on from execution of maintenance item U130, so that the toner sensor output voltage is regulated properly. Correction data 0 X-10 X-20 X-30 X-40 300 500 800 1200 2000 3000 6000 7000 Drive time (min.
2AV/X 2-1-5 Transfer and separation section The transfer and separation section consists mainly of the transfer roller and drum separation claws. A high voltage generated by the high-voltage transformer PCB (HVTPCB) is applied to the transfer roller for transfer charging. Toner adhered to the transfer roller is removed by the transfer cleaner.
2AV/X Start key DM RCL RSW TC REM 418 ms 474 ms Timing chart 2-1-5 Operation of transfer a: 418 ms after the registration clutch (RCL) turns on to start secondary paper feed, transfer charging (TC REM) starts. b: 474 ms after the trailing edge of the paper turns the registration switch (RSW) off, transfer charging (TC REM) ends.
2AV/X 2-1-6 Cleaning section The cleaning section consists of the cleaning blade that removes residual toner from the drum surface after the transfer process, and the cleaning spiral that carries the residual toner back to the waste toner tank.
2AV/X 2-1-7 Charge erasing section The cleaning lamp (CL) consists of LEDs which remove residual charge from the drum surface. Cleaning lamp (CL) Light-blocking lumirror Figure 2-1-23 Charge erasing section MPCB CL CL REM CN12-2 Drum Figure 2-1-24 Charge erasing section block diagram Start key DM 2-1 MC REM CL 1316 ms Timing chart 2-1-6 Operation of charge erasing a: When the start key is pressed, the drive motor (DM) and cleaning lamp (CL) turn on simultaneously.
2AV/X 2-1-8 Fixing section The fixing section consists of the parts shown in Figure 2-1-25. When paper reaches the fixing section after the transfer process, it passes between the press roller and heat roller, which is heated by the fixing heater (FH). Pressure is applied by the fixing unit pressure springs so that the toner on the paper is melted, fused and fixed onto the paper.
MSW Secondary stabilization fixing temperature 160°C/320°F MSW: ON Primary stabilization fixing temperature 135°C/275°F 2AV/X FH 1500 ms 1000 ms PM 20 s 30 s DM DB REM Half speed Full speed Half speed CFM1, 2, 3 Timing chart 2-1-7 Operation of fixing section a: 1500 ms after the main switch (MSW) is turned on, the fixing heater (FH) turns on to heat the heat roller. At the same time, cooling fan motors 1, 2 and 3 (CFM1, 2 and 3) rotate at half speed.
2AV/X 2-2-1 Electrical parts layout (1) PCBs 4 6 5 1 9 3 8 7 2 ; Machine front Figure 2-2-1 10 Machine inside Machine rear PCBs 1. Main PCB (MPCB) ....................................... Controls the other PCBs, electrical components and optional devices. 2. Power source PCB (PSPCB) ....................... Generates 24 V DC, +12 V DC, 5V DC and 3.3 V DC; controls the fixing heater. 3. High-voltage transformer PCB (HVTPCB) ... Main charging.
2AV/X (2) Switches and sensors 19 18 20 22 26 3 2 24 1 23 5 21 25 15 16 ; 6 4 17 14 Machine front Figure 2-2-2 1. 2. 3. 4. 2-2 11 9 7 13 12 10 8 Machine inside Machine rear Switches and sensors Main switch (MSW) ...................................... Turns the AC power on and off. Safety switch 1 (SSW1) ............................... Breaks the safety circuit when the front cover is opened. Safety switch 2 (SSW2) ...............................
2AV/X 16. Bypass paper width switch (BYPPSW) ................................................... Detects the width of paper on the bypass tray. 17. Drawer feed switch* (DFSW) ....................... Detects a paper misfeed in the lower drawer. 18. Scanner home position switch (SHPSW) ..................................................... Detects the optical system in the home position. 19. Original detection switch (ODSW) ................ Operates the original size detection sensor. 20.
2AV/X (3) Motors 2 4 5,6 1 3 7 8 ; Machine front Machine inside Machine rear Figure 2-2-3 Motors 1. 2. 3. 4. 5. 6. 7. 8. Drive motor (DM) ......................................... Drives the machine. Scanner motor (SM) .................................... Drives the optical system. Toner feed motor (TFM) ............................... Replenishes toner. Cooling fan motor 1 (CFM1) ........................ Cools the fixing section. Cooling fan motor 2 (CFM2) ........................
2AV/X (4) Other electrical components 5 8 7 6 9 4 1 3 ; 2 Machine front Machine inside 10 Machine rear Figure 2-2-4 Other electrical components 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Upper paper feed clutch (PFCL-U) .............. Primary paper feed from the upper drawer. Lower paper feed clutch* (PFCL-L) ............. Primary paper feed from the lower drawer. Bypass paper feed clutch (BYPPFCL) ......... Primary paper feed from the bypass tray. Registration clutch (RCL) .............................
2AV/X 2-3-1 Power source PCB Power source PCB AC input D1 Noise filter circuit Rectifier circuit T1 D9 Q1 C14 C29,30 24 V DC output circuit IC2 C34 + Zero-cross detection circuit PC1 Switching regulator circuit IC1 PC2 TR1 PC3 Fixing heater control circuit PT1 24 V DC 12 V DC output circuit IC3 5.1 V DC output circuit IC4 GND 12 V DC C32 GND 5.1 V DC C37,91 3.3 V DC output circuit IC5 GND C43 3.
2AV/X • 100V LUG3 IC6 IC8 IC7 C46 LUG1 C31 PT1 HS2 C45 C32 TR1 L6 D1 TH1 C14 C42 L3 HS5 C11 IC4 C36 LUG2 CN4 Z2 L4 R15 L2 C17 B1 B2 D9 AL T1 L1 PC3 CN5 C34 C30 C1 C91 C13 Q1 C37 CN2 C43 C15 IC5 C35 R31 HS3 IC3 PC1 Q3 L5 D13 C29 F3 Z1 C23 TB2 IC1 PC2 TB1 CN3 TB5 C2 TB4 HS4 F1 TB3 • 200V LUG3 IC6 IC8 IC7 C46 LUG1 C31 PT1 HS2 C45 TR1 D1 TH1 L6 IC4 C36 C14 C42 L3 HS5 LUG2 CN4 Z2 L4 T1 L1 C17 B1 B2 D9 AL L2 R15 PC3 CN2 C3
2AV/X Terminals (CN) TB-1 TB-2 TB-1 TB-2 TB-4 TB-5 TB-4 TB-5 2-3 2-1 2-3 2-1 3-1, 2 3-3, 4 3-5, 6 3-7, 8 3-9 3-10 4-1 3-3 4-3 4-2 5-2 5-1 5-2 5-1 Voltage 120 V AC 220-240 V AC 120 V AC 220-240 V AC 120 V AC 220-240 V AC 24 V DC 5.1 V DC 3.3 V DC 0/5 V DC 12 V DC 120 V AC 220-240 V AC Remarks 120 V AC supply, input 220-240 V AC supply, input*2 120 V AC supply for MSW, output 220-240 V AC supply for MSW, output*2 AC supply for FH, output AC supply for FH, output*2 24 V DC supply for MPCB, output 5.
2AV/X 2-3-2 Main PCB • 15 cpm copier Main PCB Clock signal Analog image data Odd S/H IC Even ADC IC2 Print data FEEPROM IC11 MIP IC4 BUF CCD PCB LSU Printer data Printer controller* Memory image data Address bus CPU IC16 Memory PCB* Data bus SRAM IC15,17 XIO IC19,25 Control signal output STDF* Driver Detection signal input Job separator* Optional drawer* Operation unit PCB Drive unit Scanner unit Control signal output Driver Developing unit Paper feed unit Detection signal input Fixin
2AV/X CN25 1 CN23 6 1 CN22 10 CN24 8 9 2 1 1 CN20 5 6 5 CN21 1 8 IC2 6 CN28 2 1 20 1 24 13 12 2AV2801 REV:2 14 13 11 12 12 48 IC5 1 104 IC6 24 105 CN26 24 23 1 2 25 IC4 1 36 37 157 1 10 53 1 IC3 1 IC1 20 BAT1 11 - IC9 1 IC8 10 IC7 IC10 + 1 15 16 15 1 14 1 28 IC16 IC17 28 15 B40 B39 A40 A39 14 IC15 CN30 B2 B1 A2 A1 IC14 IC12 24 25 IC13 IC31 IC11 30 CN16 CN31 51 50 31 B1 73 2 8 1 18 17 1 CN12 1 CN13 IC30 1 1 CN10 CN11 7 1 CN323
2AV/X • 20 cpm copier Main PCB Scan signal Driver Operation unit PCB Detection signal input SRAM IC19 LCD controller IC12 LCD display data BUF LCD Address bus Operation unit CPU IC10 Flash tool Data bus Clock signal FEEPROM IC16 Analog image data Odd S/H Even IC ADC IC6 Print data Fax transmission/ reception data MIP IC15 CCD PCB BUF LSU BUF Fax unit* Printer data Printer controller* FEEPROM IC28 Memory image data Address bus Scanner PCB* Data bus Main CPU IC23 MCP IC22 DIMM STDF* SR
2AV/X The main PCB (MPCB) consists of the main CPU and operation unit CPU. The main CPU IC23 communicates with other PCBs and controls memory copying, the image processing system and the engine drive system. The operation unit CPU IC10 controls the LCD display and the entire operation section. The main CPU IC23 operates on an 8-bit bus. It uses the SRAM IC39 and IC40 for work memory and backup memory.
2AV/X CN28 1 2 CN19 1 1 IC41 37 144 CN9 12 13 15 14 CN8 2-3-8 IC21 12 11 CN16 CN17 2 1 B1 A11 1 14 2 1 2 1 CN4 B11 1718 CN14 CN15 CN5 CN7 4 15 6 7 CN6 1 CN3 21 11 1 CN2 Figure 2-3-6 Main PCB silk-screen diagram (20 cpm copier) 2-3 2 81 1 10 11 1 2 8 1 7 25 26 CN10 2 1 2 1 36 1 IC51 IC50 72 IC49 37 1 + IC48 73 IC47 36 37 36 144 1 IC40 IC52 28 1 IC44 BT1 144 IC46 16 15 12 73 CN12 IC43 108 A1 IC42 108 1 14 CN11 IC38 IC37 15 IC39 14 28 15 CN1
2AV/X Terminals (CN) Voltage Remarks 1-2 1-1 3.3 V DC 3.
2AV/X 2-3 Terminals (CN) Voltage Remarks 2 8-15 8-22 0/5 V DC PSW-L* on/off, input 8-16 8-22 0/5 V DC PSW (ST) 1*3 on/off, input 8-17 8-22 0/5 V DC PSW (ST) 2*3 on/off, input 8-18 8-22 0/24 V DC DDM*2 on/off, output 8-19 8-22 0/24 V DC DDM (ST) 1*3 on/off, output 8-20 8-22 0/24 V DC DDM (ST) 2*3 on/off, output 8-21 8-22 5 V DC 5 V DC supply for lower drawer*2, optional drawer*3, output 8-23 8-22 0/5 V DC DFSW*2 on/off, input 8-24 8-22 0/5 V DC DFSW (ST) 1*3 on/off, input 8-25 8-22 0/5 V DC DFSW (ST) 2*3 o
2AV/X Terminals (CN) Voltage Remarks 4 14-2B 14-4A 0/5 V DC OSLED* (green) on/off, output 14-3B 14-4A 0/5 V DC SBPSOL*4 release signal, output 14-4B 14-4A 0/5 V DC SBPSOL*4 actuate signal, output 14-5B 14-4A 0/5 V DC OFCL*4 on/off, output 14-6B 14-4A 0/5 V DC EFSSOL*4 on/off, output 14-8B 14-4A 0/5 V DC SBFSSOL*4 on/off, output 14-9B 14-4A 0/5 V DC OFSOL*4 release signal, output 14-10B 14-4A 0/5 V DC OFSOL*4 actuate signal, output 14-11B 14-4A 0/5 V DC OFM*4 ENABLE signal, output 15-1A 14-4 0/5 V DC OFM*3 E
2AV/X 2-3 Terminals (CN) 20-4 20-2 20-5 20-2 21-1 21-2 21-3 21-2 21-5 21-2 21-6 21-2 21-7 21-2 22-2 22-1 22-4 22-3 22-6 22-5 22-8 22-7 22-10 22-9 23-2 23-1 23-4 23-3 23-6 23-5 24-1 24-5 24-2 24-5 24-3 24-5 24-4 24-5 25-2 25-1 25-3 25-1 25-5 25-4 25-6 25-4 25-8 25-7 25-9 25-7 26-1 27-12 26-2 27-12 26-3 27-12 26-4 27-12 26-5 27-12 26-6 27-12 26-7 27-12 26-8 27-12 26-9 27-12 26-10 27-12 26-11 27-12 26-13 27-12 26-14 27-12 26-15 27-12 26-16 27-12 26-17 27-12 26-18 27-12 26-19 27-12 26-20 27-12 26-21 27-12 26-
2AV/X Terminals (CN) 27-11 27-12 28-1 24-5 28-2 24-5 28-3 24-5 28-4 24-5 28-5 24-5 28-6 24-5 32-1 10-4 32-3 10-4 Voltage -12-0 V DC 0/24 V DC (pulse) 24 V DC 0/24 V DC (pulse) 0/24 V DC (pulse) 24 V DC 0/24 V DC (pulse) 24 V DC 0/24 V DC Remarks LCD Vo signal, output SM coil energization pulse, output (_A) 24 V DC supply for SM, output SM coil energization pulse, output (A) SM coil energization pulse, output (B) 24 V DC supply for SM, output SM coil energization pulse, output (_B) 24 V DC supply for SSW2,
2AV/X 2-3-3 CCD PCB CCD PCB Main PCB 1 2 CCD IC2 1 Logic IC1 2 RS RS CLP CLP SHIFT SHIFT Odd Transistor TR2 Clock signal generator ASIC Odd Analog signal processing circuit Even Transistor TR1 Even Figure 2-3-7 CCD PCB block diagram The CCD PCB (CCDPCB) is equipped with a CCD sensor IC2 for original scanning. The CCD sensor IC2 is controlled by the clock signals φ1, φ2, RS, CLP and SHIFT for CCD drive from the main PCB (MPCB) via logic IC1. Image signals are analog signals.
2AV/X 2-3-4 Laser diode PCB Main PCB Laser diode PCB Photo sensor PH1 LD1 Laser driver IC1 /ADJUST /ENABLE Driver /VIDEO /BD Figure 2-3-8 Laser diode PCB block diagram The laser diode PCB (LDPCB) consists of the laser diode LD1 and laser driver IC1. The laser driver IC1 on the laser diode PCB (LDPCB) turns the laser diode LD1 on and off according to the image data received from the main PCB (MPCB).
CFM1,2,3 DB REM DM PM FH MSW CN11-5,8,11 CN4-4 CN12-16 CN20-3,4,5 CN3-3 CN3-4 1500 ms Half speed 1000 ms Primary stabilization fixing temperature 135°C/275°F MSW: ON 20 s Full speed From the main switch turned on to machine stabilization Secondary stabilization fixing temperature 160°C/320°F Timing chart No.
2-4 2-4-2 CN12-16 DM Rev. rotation CN28-1,3,4,6 CN12-16 SM DM Off Rev. rotation Off Fwd. rotation 200 P 200 P 200 P Scanner initialization Fwd. rotation • SHPSW: OFF CN28-1,3,4,6 SM • SHPSW: ON Timing chart No.
2AV/X Timing chart No. 3 Copying an A5R/51/2" × 81/2" original onto a sheet of A3/11" × 17" copy paper from the bypass tray, magnification ratio 200% Start key Any key Fwd. rotation SM CN28-1,3,4,6 Rev.
2AV/X Timing chart No. 4 Continuous copying of an A4/11" × 81/2" original onto two sheets of A4/11" × 81/2" copy paper from the upper drawer, magnification ratio 100% (20 cpm copier) Start key Any key Fwd. rotation SM CN28-1,3,4,6 Rev.
2AV/X Timing chart No. 5 Continuous copying of an A4/11" × 81/2" original onto two sheets of A4/11" × 81/2" copy paper from the upper drawer, magnification ratio 100% (15 cpm copier) Start key Any key Fwd. rotation SM CN28-1,3,4,6 Rev.
2AV/X Timing chart No. 6 Continuous copying of an A3/11" × 17" original onto two sheets of A5R/51/2" × 81/2" copy paper from the lower drawer, magnification ratio 50%, ejection to the job separator Start key Fwd. rotation CN28-1,3,4,6 SM Rev.
2AV/X Timing chart No.
2AV/X Timing chart No.
2AV/X Timing chart No.
2AV/X Timing chart No.
2AV/X Maintenance parts list • Copier Maintenance part name Name used in service manual Name used in parts list Part No. Fig. No. Ref. No.
2AV/X Periodic maintenance procedures • Copier Section Maintenance part/location Test copy and test print Perform at the maximum copy size Section Maintenance part/location Paper feed section Section Optical section 2-4 2-4-12 Method Test copy Method Maintenance cycle Points and cautions Page Points and cautions Page Every service Maintenance cycle Right registration roller Clean Every service Left registration roller Clean Every service Clean with alcohol or a dry cloth.
2AV/X Maintenance part/location Section Optical section (con.) Original size detection sensor Maintenance part/location Section Developing section Method Clean Method Maintenance cycle Every service Maintenance cycle Developer Replace Every service Drum unit Replace Every service Points and cautions Page Clean the sensor emitter and receiver with alcohol and then a dry cloth only if there is a problem.
2AV/X Maintenance part/location Section Fixing/Eject section Method Maintenance cycle Points and cautions Page Heat roller Clean or replace Clean after 100,000 counts; check and replace after 200,000 counts Clean with alcohol. 1-6-51 Press roller Clean or replace Clean after 100,000 counts; check and replace after 200,000 Clean with alcohol. 1-6-53 Bushing Check and replace After 200,000 counts Check the installation position and noise.