Specifications

ManualsBrandsMinolta ManualsBusiness equipmentEP1052

Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL

96.11.01

EP1052

GENERAL,

MECHANICAL/

ELECTRICAL

1158SBG000AA

Summary of content (233 pages)

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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBG000BA CONTENTS GENERAL 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-1 2. PRECAUTIONS FOR INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . G-4 3. PRECAUTIONS FOR USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-5 4. HANDLING OF THE CONSUMABLES . . . . . . . . . . . . . . . . . . . . . . . . . G-6 5. SYSTEM OPTION . . . . . . . . . . . . . . . .
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 CONTENTS 10. DRUM CHARGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M-26 11. IMAGE ERASE LAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M-27 12. OPTICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M-30 12-1. Exposure Lamp LA1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M-31 12-2. AE Sensor . . . . . .
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 CONTENTS 23. 24. DEHUMIDIFYING SWITCH (OPTION) . . . . . . . . . . . . . . . . . . . . . . . . . M-62 25. MULTI BYPASS TABLE MB-4 (OPTION) . . . . . . . . . . . . . . . . . . . . . . . M-63 25-1. Paper Take-Up Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M-64 25-2. Paper Separating Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . M-66 25-3. Paper Empty Detection . . . . . . . . . . . . . . . . . . . . . . . . . .
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBG000D SAFETY INFORMATION ALL Areas 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. Denmark ADVARSEL! Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til leverandøren.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 MULTIPLE COPIES : 1 to 99 WARMING-UP TIME : 30 sec. or less with room temperature of 20°C and rated power voltage FIRST COPY TIME : A4C or 8-1/2” 11”C: 7.2 sec. or less (in Full size Mode using 1st Drawer) CONTINUOUS COPY SPEED (copies/min.): Fed from Drawer Zoom Ratio Area Size Metric Zoom Ratio 1.00 Area 12 15 15 13 Inch A3L A4L A4C B4L Size 11” 17” (L) 8-1/2” 11” (L) 8-1/2” 11” (C) 5-1/2” 8-1/2” (L) 1.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 POWER/CURRENT CONSUMPTION (Copier Only) Voltage Exposure Lamp (Rating) 115 V 120 V 80 V 225 W 127 V 220 V 240 V 160 V 240 W POWER REQUIREMENTS Fusing Heater Lamp (Rating) Max. Power Consumption In Standby 1180 W 935 W 1220 W 965 W 1290 W 1070 W 115/120 V 900 W 115/120 V 900 W 220/240 V 900 W 1195 W 930 W 1270 W 1060 W Max. Current Consumption 10.4 A 10.4 A 5.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBG0200A 2 PRECAUTIONS FOR INSTALLATION J Installation Site To ensure safety and utmost performance of the copier, the copier should NOT be used in a place: F Where it will be subject to extremely high or low temperature or humidity. F Which is exposed to direct sunlight. F Which is in the direct air stream of an air conditioner, heater or ventilator. F Which puts the operator in the direct stream of exhaust from the copier.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBG0300A 3 PRECAUTIONS FOR USE To ensure that the copier is used in an optimum condition, observe the following precautions. F Never place a heavy object on the copier or subject the copier to shocks. F Insert the power plug all the way into the outlet. F Do not attempt to remove any panel or cover which is secured while the copier is making copies. F Do not turn OFF the Power Switch while the copier is making copies.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBG0400A 4 HANDLING OF THE CONSUMABLES Before using any consumables, always read the label on its container carefully. F Use the right toner. The applicable copier model name is indicated on the Toner Bottle. F Paper is apt to be easily damaged by dampness. To prevent absorption of moisture, store paper, which has been removed from its wrapper but not loaded into the Drawer, in a sealed plastic bag in a cool, dark place.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBG0500A 5 SYSTEM OPTION 1 1142O010AA 1.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM0100A 1 CROSS-SECTIONAL VIEW 2 3 4 5 6 7 8 9 10 1 11 12 13 14 22 15 21 20 19 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 18 17 3rd Mirror 2nd Mirror 1st Mirror Exposure Lamp LA1 Lamp Reflector Lens Cleaning Blade PC Drum Charge Corona Image Erase Lamp LA3 4th Mirror PC Drum Sleeve/Magnet Roller 16 13. 14. 15. 16. 17. 18. 19. 20. 21. 22.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM0200A 2 COPY PROCESS 2 3 4 10 9 13 1. 2. 3. 4. 5. 6. 7. 12 PC DRUM DRUM CHARGING IMAGE ERASE EXPOSURE DEVELOPING PAPER FEEDING IMAGE TRANSFER 1 11 8. 9. 10. 11. 12. 13. 8 PAPER SEPARATION CLEANING MAIN ERASE TRANSPORT FUSING PAPER EXIT 5 MANUAL BYPASS TABLE 7 6 1. PC Drum The PC Drum is an aluminum cylinder coated with a photosensitive semiconductor.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 6. Paper Feeding Paper is fed either automatically from the 1st or 2nd Drawer, or manually via the Manual Bypass Table. The Drawer has fingers that function to separate the top sheet of paper from the rest at take-up. (For more details, see p. M-43.) 7. Image Transfer The single-wire Image Transfer Corona Unit applies a DC negative corona emission to the underside of the paper, thereby attracting toner onto the surface of the paper.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM0300A 3 DRIVE SYSTEM This copier is equipped with two main drive motors, PC Drive Motor M1 that drives the upper half of the copier (Imaging Unit) and Main Drive Motor M2 which gives drive for the lower half of the copier (paper take-up/feeding and transport mechanism and Fusing Unit). Each has its own drive transmitting gears and timing belts as illustrated below.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM0400A 4 SEQUENTIAL EXPLANATION *Numbers given in rectangles A in the following flowchart are timer values in sec. The power cord is plugged into the outlet. Power cord is plugged in. ON DC24V for Drum heating (PU2) ON Drum Dehumidifying Heater H2 Paper Dehumidifying Heater H3 ON B Only when Serviceman Switch S3 is ON Power Switch S1 is turned ON.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 C The Fusing Unit temperature reaches 205°C. Fusing Thermistor TH1 detects 205°C. ON/OFF Fusing Heater Lamp H1 *The Fusing Unit temperature control is started.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 D The Start Key is pressed. Start Key ON ON ON ON ON ON ON ON ON PC Drive Motor M1 Main Erase Lamp LA2 Main Drive Motor M2 Image Erase Lamp LA3 *All LEDs are turned ON. Developing Bias (High Voltage Unit HV1) Paper Separator Corona (HV1) Cleaning Bias (HV1) *Some models have no Bias Seal installed depending on their marketing areas. Synchronizing Roller (CL1) *For approx 0.2 sec only Approx. 0.3 ON Paper Take-Up Roll (Solenoid SL2) OFF Approx.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 À Approx. 0.6 ON Scanner Motor M5 OFF Scanner Reference Position Sensor PC81 Approx. 0.3 Image Erase Lamp LA3 LEDs ON/OFF control is started. Synchronizing Roller Clutch Approx. ON CL1 0.2 ON CL2 Approx. ON 0.4 Separator Fingers (Separator Solenoid SL1) SL1 Approx. OFF 0.4 F A scan motion is completed. SCEND signal: LOW Approx. ON 0.2 All LEDs of Unexposed Areas/Edge Erase Lamp LA3 ON Approx. 0.3 Scanner starts return motion. Approx.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 G The last paper moves past Transport Roller Sensor PC51. PC51 OFF Approx. 0.6 OFF Paper Leading Edge Detecting Sensor PC54 Approx. 0.4 OFF Approx. 0.7 OFF Synchronizing Roller (Synchronizing Roller Clutch CL1) PC Drum Charge Corona/Image Transfer Corona (High Voltage Unit HV1) OFF Approx. 0.7 OFF OFF Approx. 0.5 OFF OFF OFF H Approx. 1.2 OFF Approx. 2.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0500A 5 PC DRUM The photoconductive drum used in this copier is the organic photoconductor (OPC) type. The drum is made up of two distinct, semiconductive materials on an aluminum alloy base. The outer of the two layers is called the Charge Transport Layer (CTL), while the inner layer is called the Charge Generating Layer (CGL). The PC Drum has its grounding point inside at its rear end.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1139SBM0600A 6 IMAGING UNIT This copier is equipped with an Imaging Unit, or IU, which integrates a PC Drum, PC Drum Charge Corona, Developing Unit, Cleaning Unit, and Toner Recycling mechanism into one assembly. The Unit also includes the Upper Synchronizing Roller which facilitates clearing of a paper misfeed.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1139SBM0601A 6-1. Imaging Unit Drive Drive for the Imaging Unit is transmitted by one of the gears on the Unit. This particular gear is in mesh with the Imaging Unit Drive Gear in the copier.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0602A 6-2. Toner Recycling The copier is provided with a toner recycling mechanism. The toner, which has been scraped off the surface of the PC Drum by the Cleaning Blade and collected in the Cleaning Unit, is conveyed by the two Toner Recycling Coils to the Toner Supply Port and, from there, it is returned back to the Developer Mixing Chamber of the Developing Unit.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0700A 7 DEVELOPMENT The Developing Unit built into the Imaging Unit performs the following functions: D Mixes the toner and carrier well to ensure that a sufficient amount of toner is positively charged. D Detects the toner-to-carrier ratio of the developer by means of the ATDC Sensor and replenishes the supply of toner as necessary. D Detects a toner empty condition by means of the ATDC Sensor.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0701A 7-1. ATDC Sensor ATDC Sensor UN3 installed on the underside of the Developer Mixing Chamber detects the varying toner-to-carrier ratio of the developer which flows over it in the Chamber. The copier CPU compares the detected ratio with the ratio set by the ATDC Detection Level Mode (Tech. Rep. Choice SCH-90) to control toner replenishment. Set T/C (%) ATDC Output Voltage (V) 4.0 2.692 4.5 2.596 5.0 2.5 (Standard) 5.5 2.404 6.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 Toner Empty Detection The copier has no toner empty detecting sensor and, instead, the ATDC Sensor performs that function. The ATDC Sensor checks the toner-to-carrier ratio and, if it reads a T/C ratio lower than the set level for 37 copies and, further, if it next reads a ratio 1% lower than the setting, this is a toner-empty condition.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0702A 7-2. Magnet Roller The Magnet Roller of the Sleeve/Magnet Roller of this copier has the following magnetic characteristics. Part of pole S2 before the principal N1 pole (i.e., the area marked as S2b in the Fig. below) provides a very weak magnetic force.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0703A 7-3. Developing Bias A negative voltage (Vb = Developing Bias voltage) is applied to the Sleeve Roller to prevent a foggy background on the copy. The amount of toner attracted onto the surface of the PC Drum depends on how much lower the PC Drum surface potential (Vi) is than Vb (i.e., the potential difference). D When the potential difference is large, a greater amount of toner is attracted.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0704A 7-4. Doctor Blade The Doctor Blade installed over the Sleeve/Magnet Roller regulates the height of the developer brush on the surface of the Sleeve Roller. The Blade is perpendicular to the direction of movement of the Magnet Roller to minimize variations in the distance between the Doctor Blade and Magnet Roller as the Magnet Roller moves. Doctor Blade Direction of Magnet Roller Movement Magnet Roller 1139SBM0705A 7-5.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1139SBM0800A 8 CLEANING UNIT The Cleaning Blade is pressed tightly against the surface of the PC Drum and scrapes off any toner remaining on the surface after image transfer and paper separation have been completed. The Cleaning Blade is moved back and forth to prevent the PC Drum from deteriorating and the Cleaning Blade from warping away from the surface of the PC Drum. There is a Toner Antispill Mylar affixed to the Imaging Unit.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0801A 8-1. Cleaning Bias *Except the U.S.A., Canada, and Europe There is a Cleaning Bias Seal installed to minimize damage to the PC Drum from acid paper.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0900A 9 TONER HOPPER 1139SBM0901A 9-1. Toner Hopper Locking/Unlocking The Toner Hopper is not integrated into the Imaging Unit; instead, it is secured to the copier. To replace an empty Toner Bottle, the user first needs to swing the Toner Bottle Holder out 40° to the front. The Holder pivots about the Toner Supply Port as it is swung out or in, which effectively prevents toner from spilling when the Holder is swung out or in.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0903A 9-3. Shutter The connection between the Toner Hopper and Imaging Unit is provided with a Shutter which prevents toner from spilling when the Imaging Unit is slid out of the copier. Imaging Unit Out of Copier Imaging Unit in Position in Copier Shutter Imaging Unit 1151SBM0904A 9-4. Toner Hopper Home Position Detection Coupling is fitted with a Home Position Plate which is detected by Toner Hopper Home Position Sensor PC112.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1139SBM0905A 9-5. Toner Bottle Vibration When the indentations at three places on the left-hand side (as viewed when the Toner Bottle is in position) of the Toner Bottle move past the protrusion in the Toner Bottle Holder, the Toner Bottle is vibrated to prevent some of the toner from remaining unconsumed in the Bottle.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM0906A 9-6. Toner Replenishing Control 1. The ATDC Sensor installed in the Imaging Unit reads the toner-to-carrier ratio of the developer in the Developer Mixing Chamber for each copy cycle. 2. It samples the ratio 16 times and compares each with the preset level. 3. If eight or more readings out of the total 16 are lower than the preset level, a Toner Replenishing signal is output. 4.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1000A 10 DRUM CHARGING The PC Drum Charge Corona has a Scorotron grid to deposit a negative DC charge evenly across the surface of the PC Drum. The grid voltage (VG) applied to the grid mesh is selected between -650V in the normal mode and -520V in the Photo mode by the Constant-Voltage Circuit in High Voltage Unit HV1. The Corona Unit has a Comb Electrode which minimizes the amount of ozone produced.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1100A 11 IMAGE ERASE LAMP To prevent a black band from occurring across both the leading and trailing edges, and along the front and rear edges, of the electrostatic latent image, 31 LEDs of Image Erase Lamp LA3 are turned ON before development takes place, thereby reducing to a minimum the unnecessary potential on the surface of the PC Drum.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 The 31 LEDs of LA3 are grouped as shown below. The diagram on the bottom of this page shows which LEDs turn ON and OFF for different paper sizes and different zoom ratios. LED Group No. LED No. LED Group No. 00 LED 1 10 LED LED No.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1200A 12 OPTICAL SECTION As the Scanner is moved by Scanner Motor M5, the light from Exposure Lamp LA1 is reflected off the original and guided through the four Mirrors onto the surface of the PC Drum to form the electrostatic latent image. The image is enlarged or reduced as necessary by changing the position of the Lens and 4th Mirror and varying the angle of the 4th Mirror.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1201A 12-1. Exposure Lamp LA1 An AC halogen lamp is used as Exposure Lamp LA1. As the exposure level is adjusted on the control panel, the duty ratio of the pulse of AVR Remote from PWB-A changes to increase or decrease the LA1 voltage, thereby changing the image density. In Photo mode, the voltages are varied on a level 5V lower than the manual Exposure Lamp voltages.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1202A 12-2. AE Sensor In the Auto Exposure Mode, the AE Sensor on AE Sensor Board PWB-H measures the intensity of the light reflected off the original, which results in the black/white ratio of a 210-mm-wide area from the reference position of the original being measured. According to this measurement, the Exposure Lamp voltage is automatically increased or decreased so that copies of consistent quality are produced.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1203A 12-3. Lamp Reflectors The Main Reflector ensures that light from Exposure Lamp LA1 exposes all areas of the original. The Auxiliary Reflector functions to reflect light onto the areas that LA1 cannot illuminate when an original that does not lie flat on the Original Glass (such as a book) is being used. This reduces shadows which would otherwise be transferred to the copy.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1205A 12-5. Scanner and 2nd/3rd Mirror Carriage Movement The Scanner and 2nd/3rd Mirrors Carriage are moved by the Scanner Drive Cable fitted in the rear side of the copier. The Cable is driven by Scanner Motor M5. Both the Scanner and 2nd/3rd Mirrors Carriage slide along the Scanner Shaft at the rear side.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 The Scanner starts the scan motion as a Scan Sel signal (PJ16A-3) is output from PWB-A. At the start of a scan motion and other heavy load conditions, Scanner Motor M5 requires a large amount of current. The Current 1 or 2 signal (PJ16A-10 or 11) from PWB-A is selected accordingly to vary the amount of current supplied to M5. *The Current signal selection timing is controlled by software. Current 1 H L Current 2 H H L Current Approx. 0.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1206A 12-6. 4th Mirror Movement The 4th Mirror is moved to vary the conjugate distance for a particular zoom ratio by driving the rack-and-pinion gears at the front and rear ends of the mirror using Mirror Motor M7 (stepping motor). The Levers of the Holder to which the Mirror is mounted slides along a tilted rail to change the Mirror angle.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1207B 12-7. Lens Movement The Lens is moved by the Lens Drive Cable which is driven by Lens Motor M6 (stepping motor). The motor drive pulses sent from PWB-E drive M6 to move the Lens a given distance, corresponding to the zoom ratio, from the reference position determined by Lens Reference Position Sensor PC90. There is a fixed-type Lens Aperture Cover provided at the rear of the Lens (on the 4th Mirror end).
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1400A 14 MAIN ERASE LAMP Main Erase Lamp LA2 is turned ON to neutralize any surface potential remaining on the surface of the PC Drum after cleaning. Mounting Bracket Main Erase Lamp LA2 PC Drum Slit LA2 consists of ten tungsten-filament lamps mounted on a Board.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1500A 15 IMAGE TRANSFER AND PAPER SEPARATION Image Transfer The Image Transfer Corona applies a DC negative corona emission to the underside of the paper thereby attracting the positively charged toner onto the surface of the paper to form a visible, developed image of the original.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1600A 16 PAPER SEPARATOR FINGERS After image transfer, an AC corona emission is applied to the underside of the paper by the Paper Separator Corona to neutralize the paper so that it can be easily separated from the PC Drum. To further ensure that the paper is positively separated from the PC Drum, there are two Paper Separator Fingers attached to the Imaging Unit. They physically peel the paper off the surface of the PC Drum.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM1700A 17 PAPER TAKE-UP/FEED SECTION The copier is equipped with one universal paper size Drawer that can hold up to 250 sheets of paper. Paper Take-up Solenoid Paper Take-Up Sensor Drawer Set Detecting Switch S65 Paper Empty Sensor Marketing Area Switch Paper Drawer (Universal Paper Size) Paper Take-Up Rolls Paper Size Detecting Switches Paper Sizes That Can be Loaded Marketing Area Switch S66 Inch 5.5” 8.5”, 8.5” 11”, 8.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM1701A 17-1. Edge Guide and Trailing Edge Stop Paper Drawer The Paper Drawer is a universal type allowing the user to slide freely the Edge Guide and Trailing Edge Stop to accommodate paper of different sizes. The Edge Guide and Trailing Edge Stop can be locked into position by meshing the notches in the Lock Lever with those in the Drawer.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM1702A 17-2. Drawer Positioning The Paper Drawer is positioned by fitting its Positioning Plate on the paper take-up end into the groove in the Drawer Frame. It is then secured in position by the magnet installed in the Drawer Front Cover on the paper take-up end. The tabs on both sides at the front of the Drawer ensure that the Drawer clicks into position.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM1704A 17-4. Drawer-in-Position Detection The copier detects that the Drawer is slid into position as follows. When the Drawer is slid into the copier, the Drawer Frame presses Drawer Set Detecting Switch S65 installed on the back panel of the copier.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM1705A 17-5. Universal Tray Paper Size Detection The length (feeding direction) and width (crosswise direction) of the paper are independently detected and the copier determines the paper size by combining the two separate detections made. On the bottom of the tray are a lever fitted to the Trailing Edge Stop and another lever fitted to the Edge Guide.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 ON OFF WIRING DIAGRAM S61 PWB-A PJ9A-1 Control Signal L H 25-D S62 PWB-A PJ9A-4 L H 25-E S63 PWB-A PJ9A-7 L H 25-E S64 PWB-A PJ9A-10 L H 25-F S66 PWB-A PJ10A-4 L H 25-G 1158SBM1706A 17-6. Paper Empty Detection When the Drawer runs out of paper, the Actuator for the Paper Empty Sensor drops into the cutout in the Paper Lifting Plate.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM1707A 17-7. Paper Separating Mechanism The Drawer has Fingers that function to separate the top sheet of paper from the rest of the paper stack at paper take-up. The Fingers are fitted to the right front and rear corners of the Drawer. When the Paper Take-Up Roll starts turning to take up the top sheet of paper, its turning force is directly transmitted to the top sheet of paper as it is in direct contact with the Paper Take-Up Roll.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM1708A 17-8. Paper Take-Up Roll Since the Paper Lifting Plate is raised at all times by the Paper Lifting Springs, paper is wedged in the mechanism when the Drawer is slid out of the copier if the Paper Take-Up Roll is round in shape. So the Take-Up Roll is semicircular and the circular part of the Roll is positioned on top at times other than take-up. For convenience, we call this position of the Paper Take-Up Roll the ”retracted” position.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 Control Signal SL2 PWB-A PJ7A-9 PC55 PWB-A PJ7A-2 Control Signal Energized Deenergized WIRING DIAGRAM L H 25-C Blocked Unblocked WIRING DIAGRAM H L 25-B 1158SBM1709A 17-9. Paper Take-Up Retry Control To minimize the occurrence of paper misfeed due to a slippery Paper Take-Up Roll, the Paper Take-Up Solenoid is energized a second time if a sheet of paper fails to reach the Paper Take-Up Detecting Sensor within 1.3 sec.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1800A 18 VERTICAL PAPER TRANSPORT The sheet of paper taken up by the Paper Take-Up Roll from the Drawer is fed along the Paper Guide to the Vertical Transport Rollers. The paper fed by the Vertical Transport Rollers reaches the Transport Rollers and is then fed up to the Synchronizing Rollers. The Transport Rollers are turned and stopped by Paper Transport Clutch CL2.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1900B 19 SYNCHRONIZING ROLLERS The Synchronizing Rollers, operating in phase with the Scanners’ scan motion and paper feeding, synchronize the leading edge of the copy paper accurately with the leading edge of the toner image on the PC Drum. The Upper Synchronizing Roller is a metal roller covered with a polyvinyl chloride tubing, while the Lower one is a rubber roller.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1901A 19-1. Upper Synchronizing Roller Positioning Since the Upper Synchronizing Roller is fitted to the Imaging Unit, it must be correctly positioned with reference to the Lower Synchronizing Roller when the Upper Half of the copier is swung down into the locked position. For this purpose, slits are cut in the lower copier frame and the Bushings of the Upper Synchronizing Roller fit into these slits.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM1903A 19-3. Synchronizing Roller Control The Synchronizing Rollers are started as Synchronizing Roller Clutch CL1 is energized upon reception of a signal from PWB-A.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2000A 20 PAPER TRANSPORT After having gone through the image transfer and paper separation processes, the paper is then transported to the Fusing Unit by the Suction Belts of the Suction Deck driven directly by Main Drive Motor M2. Suction Fan Motor M4 draws the paper onto the turning Suction Belts for positive transport of the paper.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2100A 21 FUSING UNIT The Upper Fusing Roller and Lower Fusing Roller together apply heat and pressure to the toner and paper to permanently fix the developed image to the paper. Drive for the Upper Fusing Roller is transmitted from the Main Drive Motor to the Upper Fusing Roller Drive Gear. The Lower Fusing Roller, Cleaning Roller and Oil Roller are driven by the respective Rollers in contact with them.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2101A 21-1. Fusing Temperature Control The Upper Fusing Roller is heated by Fusing Heater Lamp H1 which is an AC halogen lamp. Fusing Thermistor TH1 installed on the Upper Fusing Roller helps keep the optimum fusing temperature. The fusing temperature is normally controlled at 195°C.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2102A 21-2. Fusing Rollers Pressure Mechanism Pressure Springs are installed at both ends of the Lower Fusing Roller. These springs contact the bearings mounted on both ends of the Lower Fusing Roller and exert pressure through the Lower Fusing Roller to the Upper Fusing Roller which is installed in the Fusing Unit. The Fusing Unit is divided into an upper and a lower half, and the upper half can be swung open.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2200A 22 EXIT UNIT The Paper Exit Roller/Rolls feed the paper, to which the developed image has been fixed, out of the Fusing Unit onto the Copy Tray. The Charge Neutralizing Brush touches the surface of the sheet of paper being fed out of the Fusing Unit to neutralize any static charge left on it. The Upper and Lower Separator Fingers strip the paper from the surface of the Upper/Lower Fusing Roller.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2202B 22-2. Paper Exit Sensor 1st Paper Exit Sensor PC53 installed in the paper exit section of the lower half of the copier detects the sheet of paper being fed out of the Fusing Unit onto the Copy Tray.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM2400A 24 DEHUMIDIFYING SWITCH (OPTION) To prevent image transfer efficiency from being reduced due to damp paper in highly humid weather, Paper Dehumidifying Heater H3 is installed on the base frame of the copier under the Drawer. While, Drum Dehumidifying Heater H2 is located under the Lower Synchronizing Roller to prevent the PC Drum from forming condensation.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM2500A 25 MULTI BYPASS TABLE MB-4 (Option) The optional Multi Bypass Table permits the user to make multiple copies (up to 50) on paper that cannot be fed automatically via any built-in paper drawer of the copier.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2501A 25-1. Paper Take-Up Mechanism The Paper Take-Up Rolls are normally in their raised (retracted) position so that they will not hamper proper loading of paper. When the Start Key is pressed, Paper Take-Up Solenoid (MB-4) SL51 is deenergized causing the Paper Take-Up Rolls to press the paper stack downward and take up a sheet of paper.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2502A 25-2. Paper Separating Mechanism The paper separating mechanism ensures that only the top sheet of paper is fed in by separating the second sheet of paper from the top one. This is accomplished by the Torque Limiter fitted to the Separator Roll shaft which stops the Separator Roll when there is a change in friction between the Feed and Separator Rolls. 1.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2503A 25-3. Paper Empty Detection The Multi Bypass Table is equipped with Paper Empty Sensor (MB-4) PC31 which detects a sheet of paper at the manual bypass port.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2700A 27 COOLING FAN Ozone produced by the PC Drum Charge Corona and Image Transfer/Paper Separator Coronas is drawn out of the copier by Cooling Fan Motor M9 and absorbed by the Ozone Filter. M9 is turned either at high or low speed. It turns at high speed for 3 seconds during a copy cycle and after the Power Switch is turned ON.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2800A 28 OPTICAL SECTION COOLING FAN Optical Section Cooling Fan Motor M3 draws outside air into the copier and blows it against the Original Glass which is heated by lit Exposure Lamp LA1. The Filter at the intake port of the Fan prevents dust and dirt from entering the Optical Section of the copier. M3 turns only during a copy cycle.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1151SBM2900A 29 MEMORY BACKUP IC1 (RAM) of RAM Board PWB-R connected to Main Control Board PWB-A stores the setting/adjustment values set in the Tech. Rep. Modes as well as the counter counts. Backup Battery BAT1 is mounted on PWB-R to prevent the contents of memory from being lost when the power cord is unplugged or PWB-R removed from the copier. BAT1 requires a voltage of 2V or more to retain the contents of memory.
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Interleaf EP1052 GENERAL, MECHANICAL/ELECTRICAL 96.11.01 1158SBM000EA Copyright 1996 MINOLTA CO., LTD Printed in Japan Use of this manual should be strictly supervised to avoid disclosure of confidential information. MINOLTA CO., LTD.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS000AA EP1052 SWITCHES ON PWBs/ TECH. REP.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS000BA CONTENTS 1 PRECAUTIONS FOR HANDLING THE PWBs 2 CONTROL PANEL KEYS AND INDICATORS 3 FUNCTIONS OF SWITCHES AND OTHER PARTS ON PWBs . . . . . . . . . . . . . . . . . . . S-1 1-1. Precautions for Transportation and Storage . . . . . . . . . . . . . . . . S-1 1-2. Precautions for Replacement and Inspection . . . . . . . . . . . . . . . S-1 . . . . . . . . . . . . . . . . . . . S-2 . . . S-4 3-1. PWB Location . . . . . . . . . .
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1151SBS0100A 1 PRECAUTIONS FOR HANDLING THE PWBs 1151SBS0101A 1-1. Precautions for Transportation and Storage a) Before transporting or storing the PWBs, put them in protective conductive cases or bags so that they are not subjected to high temperature (and they are not exposed to direct sunlight). b) Protect the PWBs from any external force so that they are not bent or damaged.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS0200A 2 CONTROL PANEL KEYS AND INDICATORS * For more details, see the “Operator’s Manual” shipped with the copier. È Auto Exposure Mode Key D Selects either the Auto or Manual Exposure, or Photo mode. À 10-Keys D Numeric keypad used for setting the number of copies to be made, and Tech. Rep. mode settings. É Exposure Control Keys D Selects the exposure level. Á Clear Key D Clear the number-of-copies setting, choice modes setting.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1151SBS0300A 3 FUNCTIONS OF SWITCHES AND OTHER PARTS ON PWBs 1151SBS0301A 3-1. PWB Location Tech. Rep. Setting Switches Board PWB-A Board 1151SBS0302A 3-2. Tech. Rep. Setting Switches Board 1151S002AA Symbol S1 Name Resets all malfunctions including Exposure Lamp (C04XX) and fusing (C05XX) malfunctions. Initialize Points Forcibly resets a misfeed or malfunction that occurred due to incorrect operation, etc.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 D Initialize Points PJ2 1. Turn OFF the Power Switch. 2. With PJ2 closed, turn ON the Power Switch. 3. In approx. 5 sec., open PJ2. D Memory Clear Test Point TP2 1. Turn OFF the Power Switch. 2. With the circuit across TP1 and 2 closed, turn ON the Power Switch. 3. In approx. 5 sec., open the circuit across TP1 and 2.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1151SBS0400A 4 USER MODE D This mode is used to make various settings according to the user’s needs. 1158SBS0401A 4-1. Functions Available from the User Mode No. Function 13 Optimum exposure level 14 Priority manual exposure level 20 Auto clear ON/OFF 21 Energy Saver ON timing 28 Auto power OFF timing 1151SBS0402A 4-2. User Mode Setting Procedure 1.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS0403A 4-3. User Mode Setting Details 1158SBS040301A [User Mode] Function No. U-13 U-14 Highlighted .) Setting (The default is Determine the optimum exposure level in the Auto as well as the Manual Exposure mode. Data Description Data 46 47 48 49 Low level 4: *2.0 steps Low level 3: *1.5 steps Low level 2: *1.0 steps Low level 1: *0.5 steps 50 51 52 Description Standard "0 steps High level 1: +0.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS040302A [User Mode] Function No. U-21 Setting (The default is Highlighted .) Select whether or not to set the copier into the Energy Saver mode after the lapse of a given period of time after a copy cycle has been completed or a key on the control panel has been operated. Data Description Data 1 2 · · · 15 Enabled: 1 min. Enabled: 2 min. · · · Enabled: 15 min.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1151SBS0500A 5 SERVICE MODE D This mode is used by the Tech. Rep. to set, check, adjust, and/or program various service functions. 1158SBS0501A 5-1. Service Mode Function Tree Test Service Mode No. 1 Tech. Rep. Choice Service Mode No.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1151SBS0502A 5-2. Entering the Service Mode 1. Perform the following steps to set the copier into the Service mode. Press the Stop key. á Press “0.” á Press the Stop key. á Press “1.” 2. From the 10-Keys, press the number corresponding to the service mode no. assigned. 3. Perform the necessary steps for the function selected. D Press the Panel Reset key twice to go back to the Basic screen.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1151SBS0503A 5-3. Settings in the Service Mode 1158SBS050301A 1. Test D This function allows the Tech. Rep. to perform various functional tests and adjustments. 1. Enter the number assigned to the desired test from the 10-Keys. (The number appears on the MultiCopy Display.) 2. Press the Start key to start the test. 3. Press the Stop key to stop the test.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 [Service Mode " Test] Test No. Description F6 This test checks whether the Edge Erase Lamp turns ON and OFF properly. (It runs for one complete copy cycle.) D Press the Start key after the copier has completed warming up. This causes the lamp to make a checkered pattern. F8 This test automatically adjusts the ATDC Sensor. (It runs for about 5 min.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS050302A 2. Tech. Rep. Choice D This function allows the Tech. Rep. to make various settings and adjustments. 1. Press “2” from the 10-Keys. (The Zoom Ratio Indicator shows “C.”) 2. Press the number assigned to the desired Tech. Rep. Choice. (The Zoom Ratio Indicator shows “C” plus the number of the chosen function.) 3. Press the Start key. (The Multi-Copy Display shows the current setting for the chosen function.) 4.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 [Service Mode " Tech. Rep. Choice] Choice No. Highlighted .
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 [Service Mode " Tech. Rep. Choice] Choice No. C-7 Setting (The default is Highlighted .) Select whether or not to inhibit copying when IU Counter has counted 60K. Data 0 1 Description Permits copying. Inhibits copying. Default: 0 (inch areas) / 1 (metric areas) C-15 Select whether or not to inhibit copying when a toner-empty condition is detected. Data Description 0 1 Permits copying.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 [Service Mode " Tech. Rep. Choice] Choice No. C-41 Setting (The default is Select whether to enable or disable the setting of “0: Disabled” for “Auto Power OFF Timing” available from the User mode. Data Description C-90 Highlighted .) 0 1 Disabled Enabled Select the ATDC control level (T/C ratio). Data Description Data Description 48 49 50 T/C ratio 4.0 % T/C ratio 4.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS050303A 3. PM Counter and Ports/Options Counter D This function shows the counts of the PM Counter (IU) and Ports/Options Counter. The particular port or option is indicated by the corresponding LED of the Misfeed Monitor. The count is shown across the “Zoom Ratio Indicator” and “Multi-Copy Display.” NOTE: The PM Counter is indicated by the IU Service Life Indicator LED.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS050304A 4. Paper Size Counter D This function shows the counts of different sizes of paper. The paper size is indicated by the Paper Select LED. The count is shown across the “Zoom Ratio Indicator” and “Multi-Copy Display.” Example) Count: 12345 Multi-Copy Display 123 Zoom Ratio Indicator 45 1. Select the Paper Size Counter function. 2.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS050306A 6. Malfunction Counter D This function shows the number of malfunctions that have occurred at different locations in the copier (count-up type counter). The Zoom Ratio Indicator shows the malfunction code, while the Multi-Copy Display shows the count. Example) ATDC Sensor malfunction (F30) Count: 12 Zoom Ratio Indicator F30 Multi-Copy Display 12 1. Select the Malfunction Counter function. 2.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS050307A 7. Parts/Supplies Life Counter D This function shows the number of copy processes to which different parts or supplies have been subjected (count-up type). Each count is given as shown below. Example) IU Counter Count: 1234567 Zoom Ratio Indicator Multi-Copy Display IU 12 Shown alternately 345 67 1. Select the Parts/Supplies Life Counter function. 2.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS050308A 8. Display D This function is used to check the time it takes the copier to complete different functions and to make a control panel display test and sensor check. 1. Select the Display function. 2. From the 10-Keys, enter the number (0, 1, 2, 6, or 7) corresponding to the item to be checked/set.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1151SBS0600A 6 ADJUST MODE D The Adjust mode is used to adjust the optical system at the factory. Use this mode only when the RAM Board (PWB-R) has been replaced and memory clear performed. Whenever PWB-R has been replaced or memory clear performed, be sure to input the values indicated on the Adjust Mode Label on the inside of the Front Door. 1151SBS0601A 6-1.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1151SBS0603A 6-3. Settings in the Adjust Mode [Service Mode " Adjust Mode] Adjust Mode Setting A0 Lens focal length correction Corrects variations in the Lens focal length (according to the grouping of the Lenses). A1 Lens full size position correction Data 49 50 51 Description Short focal length (*) Standard (0) Long focal length (+) Corrects the zoom ratio in the crosswise direction by varying the Lens full size position.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 [Service Mode " Adjust Mode] Adjust Mode A5 Reduction registration adjustment Setting Corrects registration between the leading edge of the original and that of the image in a reduction mode by varying the Synchronizing Roller start timing. Data Description A6 Book-B scan registration adjustment Data Data 70 +5.6 mm (Greater deviation) 30 .... *5.6 mm . . . . (Smaller deviation) 50 "0 mm .... .... 70 +5.6 mm (Greater deviation) 30 ...
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1151SBS0700A 7 FUNCTION SETTING REQUIREMENTS AT REPLACEMENT OF PARTS D If a part is replaced as part of troubleshooting and other service jobs, some parts require that a Test operation be run and data values reentered and/or cleared. Replacement Part Function RAM Board Memory clear f Initialize f Job program f User mode f Tech. Rep.
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Interleaf EP1052 SWITCHES ON PWBs/TECH. REP. SETTINGS 96.11.01 1158SBS000EA Copyright 1996 MINOLTA CO., LTD Printed in Japan Use of this manual should be strictly supervised to avoid disclosure of confidential information. MINOLTA CO., LTD.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 1151SBD0000A u For the Utmost safety u ! Warning D For replacement parts, use the genuine parts with their part numbers specified in the parts manual. Use of a wrong part could cause an overload or dielectric breakdown, resulting in an electric shock or fire. D Replace a blown fuse or thermal fuse with the corresponding genuine part with its part number specified in the parts manual.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 ! Caution D A high voltage is being applied to the part marked with the symbol shown on the right. Touching it can cause an electric shock. Be sure to unplug the power cord when servicing this part or other parts near it. D When the machine is energized with any of its covers removed, never use a flammable spray near it, as a fire can result.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 1158SBD000BA CONTENTS 1 SERVICE INSTRUCTIONS 1-1. PRECAUTIONS FOR DISASSEMBLY/ADJUSTMENTS . . . . . . 1-2. INSTRUCTIONS FOR HANDLING THE PWBs WITH MOS ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3. HANDLING OF THE PC DRUM . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4. PARTS WHICH MUST NOT BE TOUCHED . . . . . . . . . . . . . . . . 2 D-1 D-2 D-2 D-4 DISASSEMBLY/REASSEMBLY 2-1.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 CONTENTS D Replacement of the Toner Antispill Mylar . . . . . . . . . . . . . . . D Cleaning of the Upper Pre-Image Transfer Guide Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D Cleaning of the Magnet Roller Lower Filter . . . . . . . . . . . . . (2) Cleaning of the Main Erase Lamp . . . . . . . . . . . . . . . . . . . . . . (3) Cleaning of the Edge Erase Lamp . . . . . . . . . . . . . . . . . . . . . . 2-7.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 CONTENTS (4) Adjustment of the ATDC Sensor . . . . . . . . . . . . . . . . . . . . . . . . (5) Adjustment of the Aperture Blades . . . . . . . . . . . . . . . . . . . . . . (6) Adjustment of the Multi Bypass Table Reference Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (7) Adjustment of the 1st Drawer Reference Position . . . . . . . . . (8) Adjustment of the Leading Edge Registration . . . . . . . . .
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 1139SBD0100A 1 SERVICE INSTRUCTIONS 1151SBD0101A 1-1. PRECAUTIONS FOR DISASSEMBLY/ADJUSTMENTS Observe the following precautions whenever servicing the copier. D Be sure to unplug the copier from the outlet before attempting to service the copier. D The basic rule is not to operate the copier anytime during disassembly.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 1139SBD0102A 1-2. INSTRUCTIONS FOR HANDLING THE PWBs WITH MOS ICs The following precautions must be observed when handling P.W. Boards with MOS (Metal Oxide Semiconductor) ICs. During Transportation/Storage: D During transportation or when in storage, new P.W. Boards must not be indiscriminately removed from their protective conductive bags. D Do not store or place P.W. Boards in a location exposed to direct sunlight.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 If, however, the surface is contaminated with fingerprints, clean it using the following procedure. 1. Place the PC Drum into one half of its container. 2. Gently wipe the residual toner off the surface of the PC Drum with a dry, Dust-Free Cotton Pad. a) Rotate the PC Drum so that the area of its surface on which the line of toner left by the Cleaning Blade is present is facing straight up.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 1151SBD0104A 1-4. PARTS WHICH MUST NOT BE TOUCHED (1) Screws Purpose of Application of Red Paint Red paint is applied to the screws which cannot be readjusted, set, or reinstalled in the field. The basic rule is not to remove or loosen the screws to which red paint is applied. In addition, be advised that, if two or more screws are designated as those which must not be touched on a single part, only one representative screw may be marked with red paint.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 2 DISASSEMBLY/REASSEMBLY 2-1.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 No. Part Name Removal Procedure 1 Front Door Swing down No.1. Remove one screw that secures the Belt. Remove two screws that secure the Front Door (only on one side). Slide the Door to the side from which the screws have been removed. 2 Control Panel Swing down No.1. Remove No.9. Release and swing up the Upper Half of the copier. Remove No.21.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 No. Part Name Removal Procedure 19 Upper Left Cover Swing down No.1. Release and swing up the Upper Half of the copier. Remove four screws that secure the Upper Left Cover. 20 Middle Front Left Cover Swing down No.1. Release and swing up the Upper Half of the copier. Remove one screw that secures the Middle Front Left Cover. 21 Front Exit Cover Swing down No.1. Release and swing up the Upper Half of the copier. Remove No.22.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 2-2. REMOVAL OF PWBs D When removing a PWB, first go over “PRECAUTIONS FOR HANDLING THE PWBs” contained in SWITCHES ON PWBs and use the removal procedures given on the next page. D Replacement of a PWB may call for readjustments or resetting of particular items. D The removal procedures given on the next page omit the steps to unplug connectors and remove the PWB from the PWB support.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 Symbol Name Removal Procedure PWB-A Master Board Open 1. Release and swing up the Upper Half of the copier. Remove 19. PWB-C Power Supply Board PWB-D Noise Filter Board Open 1. Release and swing up the Upper Half of the copier. Remove 17, 18, and 19. Remove four screws that secure the Power Supply Unit Cover. PWB-E Motor Drive Board Open 1 and 12. PWB-H AE Sensor Board Remove 3 and 4. Remove 9, 10, and 11. PWB-P Control Panel Open 1.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 2-3.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 2-4. PAPER TAKE-UP/TRANSPORT SECTIONS (1) Removal of the Paper Take-Up Unit 1. Remove the Multi Bypass Table. (OPTION) See p. D-13. (NO 1 ~ 7) 2. Slide out the 1st Drawer. 1158D021AA 3. Press the tabs at the two places indicated by the arrow and, at the same time, remove the cover. 1142D007AA 4. Remove five screws and the Paper Take-Up Unit. 1158D024AA 5. Unplug the one connector from the solenoids on the Paper Take-Up Unit. 1158D022AA 6. 7. 8.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (2) Removal of the Paper Take-Up Rolls 1. Remove one screw to remove the Paper Take-Up Roll. (3) Cleaning of the Paper Take-Up Rolls 1. Remove the Paper Take-Up Unit from the copier. 2. Using a soft cloth dampened with alcohol, wipe clean the Paper Take-Up Rolls. (4) Removal of the Suction Unit 1. Remove the Fusing Unit. (See p. D-34.) 2. Unplug the Suction Fan connector and remove the wire from the clamp. 1151D029AA 3.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 2. Snap off the three E-rings from the Suction Drive Unit. 3. Remove the gear and bushings. 4. Remove the Pre-Fusing Guide Plate. 5. Remove the Suction Drive Unit. 1151D005AA 6. Remove the four belts. 1151D006AA 7. Remove the Suction Fan. 1151D009AA (6) Disassembly of the Multi Bypass Table (OPTION) 1. Remove the Right Door.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 2. Remove three screws and the Large Cover. 3. Remove one screw and the Small Cover. 4. Remove three screws and the Guide Lever Unit. 5. Remove four screws and the Multi Bypass Table. 6. Unplug the Multi Bypass Table connector.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 7. Remove one screw and the Multi Bypass Table. 8. Unplug one connector. 9. Remove the Tension Unit. 1151D018AA 10. Remove two screws and the Clutch Mounting Bracket. 11. Remove two screws and the Lower Guide. 12. Remove four screws and the Separator Guide Plate Unit.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 NOTE When reinstalling the Separator Guide Plate Unit, press the parts shown on the left up against the copier frame (both at front and rear). 13. Remove two screws and the Lever. 14. Snap off one C-clip and remove the Separator Unit. NOTE D Please use tweezers when reinstalling the C-clip. 15. Snap off one C-clip and remove the Separator Roll Assy. 16. Remove three screws and the Solenoid Mounting Bracket.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 17. Unplug one solenoid connector. 18. Unplug one photosensor connector and remove the harness from the clamp. NOTE When reinstalling the Solenoid Mounting Bracket, make sure that the Solenoid is in the deenergized position. 19. Snap off the two C-clips to remove the Paper Take-Up Roll Unit. 20. Snap off the three C-clips to remove the Paper Feed Roll. 21. Snap off one C-clip and remove the Paper Take-Up Roll.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 2-5. OPTICAL SECTION (1) Removal of the Lens Drive Cable 1. Remove two screws and the Optical Section Cover. 2. Remove three screws and the Lens Cover. 3. Remove two screws, two clamps and the Lens Motor Unit. 4. Remove one screw and the Cable Fixing Bracket. 5. Remove the spring. 6. Remove the Cable Drive Gear and the Lens Drive Cable.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (2) Winding of the Lens Drive Cable 1. Hold the Cable Drive Gear in position with its Bead at the bottom. 2. Wind the shorter length of the Cable three turns clockwise around the Cable Drive Gear, working from the back to the front side. Then tape it. 3. Wind the longer length of the Cable five turns counterclockwise around the Cable Drive Gear, working from the front to back side. Then tape it. 4.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 6. Temporarily secure the longer length of the Cable to the Cable Fixing Bracket, ensuring a distance of 5 ± 2 mm for the dimension shown on the left. 7. Wind the shorter length of the Cable around the Pulley which is nearer to the Cable Drive Gear. 8. Hook the spring onto the shorter length of the Cable and pull it to hook onto the longer length of the Cable. 9. Check that the dimension noted in step 6 above measures 5 ± 2 mm.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 4. Move the 2nd/3rd Mirrors Carriage toward the Scanner Drive Gear so that the Cable slacks off and then remove the longer length of the Cable. 5. Remove four screws and PWB-A. 6. Remove three screws and the Scanner Motor Mounting Bracket. 7. Snap off one E-ring and remove the Scanner Drive Gear. 1151D032AA 8. Remove two screws and the Pulley. 9. Remove the Cable.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (4) Winding of the Scanner Drive Cable z Remark Whenever the Scanner Drive Cable has been rewound, be sure to make the ”Adjustment of the Scanner/ Mirrors Carriage Position.” See p. D-60. Pulley B Pulley A Scanner Drive Gear Pulley C 1. Fit the Pulley to the Scanner Drive Gear using two screws. 2. Wind the shorter length of the Cable 2 turns clockwise around the Pulley, working from the back to front side. 3.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 4. Fit the Scanner Drive Gear onto the Scanner Motor Mounting Bracket using one E-ring. 5. Secure the Scanner Motor Mounting Bracket to the frame using three screws. 1151D032AA 6. Insert a wrench into the holes in the Scanner Drive Gear and the frame to position the Gear. 1151D033AA 7. Wind the longer length of the Cable around Pulleys C and B and then secure it to the frame.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 9. Fit the Cable into the groove in the Wire Guide and hook the spring. 10. Remove the wrench and Cable Holding Jig. (5) Removal of the Scanner 1. Turn the Scanner Drive Gear to move the Scanner to the right-hand side of the copier. Then, remove three screws and the Scanner. 1151D019AA (6) Cleaning of the Exposure Lamp 1. Remove two screws and the Exposure Lamp Terminal. 2. Slide out the Exposure Lamp. 1151D021AA 3.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (7) Cleaning of the 1st/2nd/3rd Mirrors 1. Turn the Scanner Drive Gear to move the Scanner away from the Mirrors. Then, wipe clean the 1st/2nd/3rd Mirrors with a soft cloth. NOTE An alcohol-dampened cloth may be used if the Mirror is seriously contaminated. (8) Cleaning of the Lens and 4th Mirror 1. Gently dust off the surface of the Lens and 4th Mirror by using a dry soft cloth.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 2-6. Imaging Unit (1) Disassembly, Cleaning, Replacement and Starter Changing of the Imaging Unit 1. Remove the Imaging Unit from the copier. 2. Remove two screws and the Imaging Unit Cover. 1151D044AA 3. Remove one screw and the PC Drum Charge Corona Unit. Replacement of the PC Drum 4. Remove two screws and one Drum Pin to remove the PC Drum.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 Replacement of the Cleaning Blade 7. Remove two screws and the Lid. 8. Remove the spring. 9. Remove two screws, one spring, one cap and the Cleaning Blade. Replace it with a new one. NOTE When the Cleaning Blade has been replaced, apply toner to the entire surface of the new Cleaning Blade. Applying Toner to Cleaning Blade Apply toner to the entire surface of the Cleaning Blade. (Do not forget to coat the surfaces on both ends.) Install the PC Drum.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 Cleaning of the PC Drum Paper Separator Fingers 10. Using a soft cloth dampened with alcohol, wipe clean the Paper Separator Fingers. Cleaning of the Ds Positioning Collars 11. Using a soft cloth dampened with alcohol, wipe clean the Ds Positioning Collars. Cleaning of the Paper Dust Remover 12. Remove two screws, two compression coil springs and the Synchronizing Roller Unit.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 NOTE At reinstallation, press the Toner Antispill Mylar up against the Imaging Unit Housing and the rear side of the copier (in the directions of the arrows) and press the Bias Seal up against the Imaging Unit Housing and the front side of the copier (in the directions of the arrows). Cleaning of the Upper Pre-Image Transfer Guide Plate 17. Remove two screws and the Upper Pre-Image Transfer Guide Plate. 18.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (2) Cleaning of the Main Erase Lamp 1. Remove four screws and PWB-A. 2. Remove three screws and HV1. 3. Unplug the connector of the Main Erase Lamp. 4. Remove the Imaging Unit. 5. Pull out the Toner Bottle Holder to the front. 6. Remove one screw and the Main Erase Lamp. 7. Using a brush or a soft cloth dampened with alcohol, clean the Erase Lamp. NOTE Do not touch the Lamp with bare hands. (3) Cleaning of the Edge Erase Lamp 1.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 3. Go to the rear of the copier and unplug the connector of Edge Erase Lamp. 1151D036AA 4. Remove the Imaging Unit. 5. Remove one screw and the Edge Erase Lamp. NOTE When removing the Erase Lamp, use care not to lose the pressure spring in the rear. 6. Using a brush or a soft cloth dampened with alcohol, clean the Erase Lamp. NOTE After the Erase Lamp has been cleaned, make the “Adjustment of the Edge Erase Lamp Position.” See p. D-59.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 2-7. PC DRUM CHARGE CORONA/IMAGE TRANSFER CORONA UNIT (1) Cleaning of the PC Drum Charge Corona Housing 1. Remove the Imaging Unit. 2. Remove one screw and PC Drum charge Corona Unit. 3. Press the Mesh Holder on the front of the Corona Unit in the direction of arrow A to remove the Grid Mesh. 1151D037AA 4. Remove the Cleaning Pad Cover. 5. Remove the End Caps from the front and rear ends of the Unit. 6. Remove the Comb Electrode.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (3) Cleaning of the Comb Electrode 1. Clean the Comb Electrode using the Corona Unit Cleaning Lever. (4) Cleaning of the Image Transfer/Paper Separator Coronas Wires 1. Clean the Image Transfer Corona Wire using the Corona Wire Cleaning Lever. 2. Remove the four Paper Guides. 3. Dampen a soft cloth with alcohol, hold it with a pair of tweezers, and wipe the Paper Separator Corona Wire gently in one direction. (Go from the hook to spring end.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (6) Cleaning of the Lower Pre-Image Transfer Guide Plate 1. Using a brush, whisk dust off the Lower Pre-Image Transfer Guide Plate. (7) Replacement of the Ozone Filter 1. Press the Filter Cover Bracket in the direction of the arrows and pull it off. 2. Remove the Filter and replace it with a new one. 1151D045AA 1158SBD0208A 2-8. Fusing Unit (1) Removal of the Fusing Unit 1. Remove one screw and the Ground Wire of the Fusing Unit. 1151D038AA 2.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 4. Remove one screw and the Fusing Unit Locking Plate. 5. Turning it in the direction of the arrow, remove the Fusing Unit. NOTE When reinstalling the Fusing Unit, install the Locking Plate as illustrated on the left. (2) Cleaning of the Pre-Fusing Guide Plate 1. Using a soft cloth dampened with alcohol, wipe clean the Guide Plate. (3) Removal of the Upper Fusing Roller 1. Remove two screws and the Fusing Unit Front Cover. 2.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 4. Remove four Cord Holders of the Fusing Thermistor. 5. Remove one screw and the Fusing Thermistor. 1151D011AA 6. Remove the screw and clamp that secure the Lamp harness at the front of the copier. 1151D012AA 7. Remove the rear lamp harness and harness clamp (six). 8. Remove the mounting bracket (one screw). 1151D013AA 9. Remove the Fusing Thermoswitch (two screws).
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 10. Slide out the Fusing Heater Lamp. 11. 12. 13. 14. Remove two C-clips. Remove one spur gear. Remove two bushings. Remove the Upper Fusing Roller. (4) Cleaning of the Upper Fusing Roller 1. Using a soft cloth dampened with alcohol or silicone oil, wipe clean the Upper Fusing Roller. (5) Cleaning of the Upper Paper Separator Fingers 1. Using a soft cloth dampened with alcohol or silicone oil, wipe clean the Upper Separator Fingers.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (7) Removal of the Lower Fusing Roller 1. Turning it in the direction of the arrow, remove the Lower Separator Fingers Unit. 2. Remove the Lower Fusing Roller (8) Cleaning of the Lower Fusing Roller 1. Using a soft cloth dampened with alcohol or silicone oil, wipe clean the Lower Fusing Roller. (9) Cleaning of the Lower Paper Separator Fingers 1. Using a soft cloth dampened with alcohol or silicone oil, wipe clean the Lower Separator Fingers.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (10) Removal of the Oil Roller 1. Remove the front holder (one screw). 2. Remove the front bushing. 1151D015AA (11) Cleaning of the Oil Roller 1. Using a brush, clean the Oil Roller.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 3 ADJUSTMENT 3-1. JIGS AND TOOLS USED z Important D When adjusting the positions of the Scanner and Mirrors Carriage, use Jigs numbered Â and Ã. D When adjusting the gap between the Doctor Blade and Sleeve Roller, use Jigs numbered Ä and Å. D When adjusting the position of PC Drum Paper Separator Fingers, use Jigs numbered Ä and Æ.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 3-2. ADJUSTMENT REQUIREMENTS LIST Adjustment Item Requirements Adjusting Point Ref. Page Max.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 1151SBD0303A 3-3. ADJUSTMENT OF SWITCHES Microswitches The following microswitches are used in various parts of this copier. Blue Yellow Red Red Wiring for the NO Type Wiring for the NC Type NC (Normally-Closed) : Current flows between NC and COM when the actuator is open. NO (Normally-Open) : Current flows between NO and COM when the actuator is closed. COM (Common) : Common contact for NC and NO Requirement Actuator COM 0.1 mm to 0.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (1) Adjustment of Front Door Interlock Switch S21 1. Open the Right Door. 2. Remove the Middle Right Cover. (4 screws) 3. Remove the Upper Right Cover. (2 screws) 4. Remove the Right Cover. (2 screws) 5. Swing down the Front Door. 6. Remove the I/U Lock Lever. (1 screw) 7. Remove the Interlock Switch Cover. (2 screws) 8. Loosen the two screws that secure Front Door Interlock Switch S21.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 3-4. ELECTRICAL/IMAGE ADJUSTMENTS (1) Adjustment of the Maximum Exposure Lamp Voltage for the Manual Mode z Requirement D Maximum Exposure Lamp voltage: 81 ± 1V (RMS value) z Important D After the maximum Exposure Lamp voltage has been adjusted, be sure to make the following adjustments: Optimum Exposure Setting in the Manual Mode and Optimum Exposure Setting in the Auto Mode. 1. Remove the Large Cover. (3 screws) 2.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 When using the testers, voltmeters, or multimeters which show only the mean value, not Rms values, carry out the following procedure. 1. 2. Measure the line voltage. Referring to the Mean Value Chart corresponding to each voltage area, see the figure under the voltage obtained in step 1. If the line voltage is 125 V and Rms value is 81 V, for example, the mean value is 54.5 V.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 MEAN VALUE CHART FOR 200/220/240V AREAS V Rms 162.0 V 162.0 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 V 162.0 200 201 202 203 204 205 206 207 208 V 162.0 210 211 212 120.7 120.4 120.0 V Rms 162.0 V Rms 162.0 V Rms 162.0 V Rms 162.0 220 221 222 117.2 117.0 116.7 230 231 232 114.2 114.0 113.7 240 241 242 111.6 111.4 111.1 250 251 252 213 214 119.7 119.2 223 224 116.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (2) Adjustment of the Optimum Exposure Setting in the Manual Mode z Requirement D When the manual exposure setting is at the central indication, no image of step no. 1 of a Kodak Gray Scale should be produced on the copy, but a faint image of step no. 2 should be produced. No image of step no. 1 Faint image of step no.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (3) Adjustment of the Optimum Exposure Setting in the Auto Mode z Important D This adjustment must be made after the optimum exposure setting in the Manual Mode has been adjusted. 1. Place about five sheets of A3 or 11” 17” paper on the Original Glass and lower the Original Cover. 2.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (4) Adjustment of the ATDC Sensor z Important D This adjustment is not necessary when a new Imaging Unit has been installed. (The ATDC Sensor is automatically adjusted when the starter is charged and the Power Switch turn ON.) D The adjustment must be made whenever the currently used Imaging Unit has been charged with new starter. 1. Load the starter. 2.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (5) Adjustment of the Aperture Blades z Requirement D There should be no dark or light bands running in the feeding direction on copies produced. (Adjust to obtain the mean image density for all areas.) z Important D If dark and light bands running in the feeding direction occur on copies, make this adjustment after checking the following. 1) The Drum Charge Corona Wire, Grid Mesh, and Image Transfer Corona Wire are free of dirt.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (6) Adjustment of the Multi Bypass Table Reference Position z Requirement D Ready a test chart (A3 or 11” 17”) as shown on the left. Draw a line on the chart at a point 20 mm from the right edge as shown. D Dimension A on the copy should measure 20 ± 2.0 mm. 1. Place the test chart face down on the Original Glass and align its rear left corner with the marker on the Original Width Scale on the left side of the platen. Then, lower the Original Cover. 2.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (7) Adjustment of the 1st Drawer Reference Position z Requirement D Ready a test chart (A3 or 11” 17”) as shown on the left. Draw a line on the chart at a point 20 mm from the right edge as shown. D Dimension A on the copy should measure 20 ± 2.0 mm. z Important D If the Paper Tray of the Drawer needs to be moved for adjustment, make sure that it is moved straight, not slantwise (as skewed feeding of paper could result). 1.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (8) Adjustment of the Leading Edge Registration Full Size z Requirement D Ready a test chart (A3 or 11” 17”) as shown on the left. Draw a line across the test chart at a point 20 mm from the leading edge and use it as the reference line. Dimension A at the center on the copy should meet the following requirements. Mag. Ratio Dimension A (mm) 20.0 ± 1.5 Full Size (100 %) 40.0 ± 3 Enlargement (200 %) 10.0 ± 1.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 3. If the registration does not meet the requirement, go to the control panel and press the Stop Key, Multi-Copy Key “0,” Stop Key, and Multi-Copy Key “1,” in that order, to set the copier into a state ready to enter a particular Tech. Rep. Mode. 4. Press the Stop Key and then press the Start Key to set the copier into the Adjust Mode. (At this time, the Magnification Ratio Indicator shows “A.”) 5. Press Multi-Copy Key “4” and press the Start Key.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 Enlargement 1. After the leading edge registration in the full size mode has been adjusted, make two single copies in an enlargement mode (200 %) and check for leading edge registration on the second copy. (If the enlargement leading edge registration meets the requirement, go to “Adjustment of Reduction Leading Edge Registration.”) 2.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 Reduction 1. After the leading edge registration in an enlargement mode has been adjusted, make two single copies in a reduction mode (50 %) and check for leading edge registration on the second copy. 2. If the registration does not meet the requirement, go to the control panel and press the Stop Key, Multi-Copy Key “0”. Stop Key, and Multi-Copy Key “1”, in that order, to set the copier into a state ready to enter a particular Tech. Rep. Mode. 3.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (9) Adjustment of the Image Leading Edge Erase Width z Requirement D Ready a test chart (A3 or 11” 17”) as shown on the left. Paint a 20 mm-long rectangle in black at the center of the test chart along its leading edge as shown. Adjust so that the erase width along the leading edge of the painted area measures 0.5 to 6.5 mm. D Setting value range: 42 to 58 D Movement equivalent to 1 step of setting value: 0.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 6. Press the Clear Key to clear the current setting value. 7. With the old setting value used as reference, enter the new setting value using the appropriate Multi-Copy Keys. NOTE If the erase width on the copy is less than 0.5 mm, increase the setting value. If the erase width on the copy exceeds 6.5 mm, decrease the setting value. 8. Press the Start Key to validate the setting. 9.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (10) Adjustment of the Edge Erase Lamp Position z Requirement D Edge erase width: Within 1 ± 0.5 mm z Important D This adjustment must be made after the reference positions of the Multi Bypass Table and 1st Drawers have been adjusted. 1. With the Original Cover raised, place a sheet of A4 or 8-1/2” 11 paper lengthwise on the Original Glass. 2. With the Original Cover raised, make a full size copy. 3.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 3-5. OTHER ADJUSTMENTS (1) Adjustment of the Scanner/Mirrors Carriage Position z Requirement D With the Scanner positioned correctly with reference to the upper copier frame, there should be no gap between the Scanner/Mirrors Carriage and the Scanner/Mirrors Carriage Positioning Jig. 1. Remove the Original Cover, Original Scales, and Original Glass. 2. Temporarily tighten the screw on the Scanner Drive Cable Holding Bracket. 3.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (2) Adjustment of the Gap Between the Doctor Blade and Sleeve Roller z Requirement D The gap between the Doctor Blade and the Sleeve Roller should be 0.35 mm ± 0.05 mm. z Important D Cover the PC Drum with the Drum Cloth to prevent it from being scratched. 1. Remove the Developer Scattering Prevention Plate. 2. Wipe the developer off the surface of the Sleeve Roller. 3. Install the Sleeve/Magnet Roller Positioning Jig onto the Imaging Unit. 4.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 (3) Adjustment of the PC Drum Paper Separator Fingers Position z Requirement D The gap between the PC Drum and the PC Drum Paper Separator Fingers should be 1.0 ± 0.5 mm when the Separator Solenoid is in the deenergized position. z Important D Cover the PC Drum with the Drum Cloth to prevent it from being scratched. D Use care not to deform the Separator Fingers during the adjustment procedure.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 4 MISCELLANEOUS 4-1. INSTALLATION OF THE PLUG-IN COUNTER MOUNTING BRACKET (OPTION) 1. Remove the Middle Right Cover. 2. Remove the Counter Cover. 3. Remove the Upper Right Cover. 4. Remove the Right Cover. 5. Connect the Plug-In Counter Connector. 6. Secure the Plug-In Counter Mounting Bracket by tightening the two screws.
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Interleaf EP1052 DIS/REASSEMBLY, ADJUSTMENT 96.11.01 1158SBD000EA Copyright 1996 MINOLTA CO., LTD Printed in Japan Use of this manual should be strictly supervised to avoid disclosure of confidential information. MINOLTA CO., LTD.
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Interleaf EP1052 TROUBLESHOOTING 96.11.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1158SBT000BA CONTENTS *:Only when options are used 1 INTRODUCTION 1-1. General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T-1 1-2. How to Use This Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T-1 1-3. Reading the Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T-1 2 I/O PORT CHECK 2-1. Method for Checking the Control Parts with Loads . .
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1-8. C0F10: Faulty AE Sensor level . . . . . . . . . . . . . . . . . . . . . . . . . . . C0F30: ATDC Sensor malfunction 1-9. C0F02: Original size detection error (Defective CPU) . . . . . . . . C0FE1 To C0FFF: Original Size Detecting Sensor failure 2. Power is not Turned ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3. E1, E2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1139SBT0100A 1 INTRODUCTION 1139SBT0101A 1-1. General Precautions 1. When servicing the copier with its covers removed, use utmost care to prevent your hands, clothing, and tools from being caught in revolving parts including the chains and gears. 2. Before attempting to replace parts and unplug connectors, make sure that the power cord of the copier has been unplugged from the wall outlet. 3.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT0200A 2 I/O PORT CHECK 1158SBT0201A 2-1. Controlled Parts Check Procedure To allow the Tech. Rep. to easily and safely determine whether a particular controlled part is fully operational, this copier provides the following provision: the check of the data of the I/O port on the board IC with the copier in the standby state (including a misfeed, malfunction, and closure failure condition) allows the Tech. Rep.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 Example: When a paper misfeed occurs in the paper take-up section of the copier, Paper Take-Up Sensor PC55 is considered to be responsible for it. 1) Remove the sheet of paper misfed. 2) From the I/O port check list, it is found that the H/L input signal to PC55 is supplied from PWB-A (IC4A) APA1.
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Symbol : 2-2. Port Check List (Copier) Name Port No. 1st Drawer paper take-up LED on the Monitor Display lights up. Magnification Multi-Copy Manual Exposure Ratio Indicator Display Indicator Operation Characteristics CN/PJ No.
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Name Port No. Magnification Multi-Copy Manual Exposure Ratio Indicator Display Indicator Operation Characteristics CN/PJ No.
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PC81 PC86 PC90 PC101 T-6 PC112 Name Scanner Reference Position Sensor Mirror Reference Position sensor lena Reference Position Sensor Paper Empty Sensor Toner Hopper Home Position Sensor Port No. APB0 APB2 APB1 APA2 APB6 Magnification Multi-Copy Manual Exposure Ratio Indicator Display Indicator APB 4A ↑ APB APA APB ↑ 4A ↑ 4A Operation Characteristics CN/PJ No.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT0300A 3 PAPER TRANSPORT FAILURE 1158SBT0301A 1. Paper Misfeed When a paper misfeed occurs in the copier, the corresponding Misfeed Location Monitor LED on the control panel blinks to let the user know where the misfeed has occurred. If an LED lights up steadily, it indicates that there might be a sheet of paper present at that particular location in the copier.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 The paper misfeed, is detected by the following sensors.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 D Here is an at-a-glance listing of misfeed detections made by the various sensors of the copier.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1158SBT030101A 1-1. Misfeed Detected When Copier is Turned ON Procedure 1. Check for lit LED and remove a sheet of paper if present at the LED location 2. If an LED or LEDs light up again, perform the following procedure. Lit LED F Paper Location Sensor Action Drawer Paper Take-Up Sensor PC55 See step 10 on p. T-13 (Copier Take-Up Misfeed Clearing Procedure). Transport Roller Transport Roller Sensor PC51 See step 14 on p.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1158SBT030102A 1-2.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 z Copier Take-Up Misfeed Clearing Procedure Symptom D Paper is not taken up at all. D Paper is stationary before the Paper Take-Up Sensor. Step Check Item 1 Is the paper being used up to product specifications? Result NO Instruct the user to use the paper that is up to product specifications. Action 2 Is the paper curled, waved, or damp? YES Change the paper. Instruct the user in how to store the paper.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 Symptom D Paper is stationary before the Vertical Transport Roller. D Paper is stationary at the Vertical Transport Roller. Step Check Item Result YES Replace PWB-A. 10 Check Paper Take-Up Sensor (PC55). Seep.T-3. PC55: PWB-A (IC4A) APA1 NO Check the Actuator for operation. Check the Paper Take-Up Sensor.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1158SBT030103A 1-3.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 z Bypass Port Misfeed Clearing Procedure Symptom Step 1 Check Item Does the misfeed occur when the Manual Bypass Table is used? Result YES Is paper taken up and fed in properly from the Drawer? 2 D Paper is not taken up at all. NO 3 Is the paper being used up to product specifications? NO Instruct the user to use the paper that is up to product specifications. 4 Is the paper curled, waved, or damp? YES Change the paper.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1158SBT030104A 1-4.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 z Transport/Separator Misfeed Clearing Procedure Symptom D Paper is stationary before the Synchronizing Roller. Step Check Item 1 Is the paper curled, waved, or damp? 2 Check Paper Leading Edge Detecting Sensor PC54 See p. T-3 (PWB-A (IC4A) APC6). Do the Synchronizing Rollers turn? 3 D Paper is stationary near the PC Drum.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 Symptom D Paper is wedged at the Paper Separator Fingers. Step Check Item 10 Does the voltage across PJ14A-2 on PWB-A and GND change from DC24V to DC0V after the Start Key has been pressed? 11 D Paper is stationary before the Suction Belts. Are the Paper Separator Fingers deformed or dirty? 12 Check Transport Roller Sensor PC51 See p. T-3 (PWB-A (IC4A) APC7). 13 Check Paper Leading Edge Detecting Sensor PC54 See p. T-3 (PWB-A (IC4A) APC6).
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1158SBT030105A 1-5.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 z Fusing/Exit Misfeed Clearing Procedure Symptom D Paper is stationary before the Fusing Roller. Step Check Item 1 Is the paper curled, waved, or damp? YES Change the paper. Instruct the user in how to store the paper. 2 Is the Guide Plate dirty with toner? YES Clean the Guide Plate. Check for possible scattering of toner. YES Check the Belts and Drive Gear.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT0302A 2. Wrinkles in Paper Step Cause Paper 1 Paper Take-Up Section Check Item Is the problem solved when new paper is used? Transport Section 4 6 Fu using Unit 5 7 8 Action YES Change the paper (that meets product specifications). Instruct the user in how to store the paper. NO Check the Drawer and Paper Take-Up Rolls and adjust, clean, and/or replace the parts as necessary. (See ”Skewed Feed” that appears later.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1158SBT0304A 4. Skewed Feed Step Cause Paper 2 3 Paper Take-Up S Section 1 5 6 Transportt Section 4 Paper Take-Up Roll Result YES Action Change the paper (that is up to product specifications). Instruct the user in how to store the paper.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT0400A 4 MALFUNCTIONS 1158SBT0401A 1. Self-Diagnostic Function The copier CPU is capable of self-diagnosis of the copier conditions and, when detecting a malfunction, it shows the corresponding malfunction code across the Zoom Ratio Indicator and Multi-Copy Display. Each malfunction code indicates the particular part which has developed a malfunction and the type of malfunction.
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Interleaf EP1052 TROUBLESHOOTING 96.11.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT040101A 1-1.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 Step Check Item Result Action 1 Is C0001 being shown? YES Begin with step 5. 2 Does M2 start to turn when the Start Key is pressed? YES Check rolls/rollers and gears for possible overload.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT040102A 1-2.
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Interleaf EP1052 TROUBLESHOOTING 96.11.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT040103A 1-3.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 C004C Step Check Item Result 1 Is M9 turning at low speed when the Power Switch is in the ON position? 2 Does the voltage across PJ6A-9 on PWB-A and GND change from DC12V to DC24V when the Start Key is pressed? 3 NO Is the voltage across PJ6A-9 on PWBA and GND DC12V when the Power Switch is in the ON position? YES NO Action Begin with step 3. Replace M9. Replace PWB-A. YES Replace M9. NO Replace PWB-A.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT040104A 1-4.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 Step Check Item Result Action 1 Is C0071 being shown? YES Begin with step 3 Does the Toner Bottle turn when two or three copies are made with the Original Cover raised? YES Perform step 3. 2 NO Perform step 4. Make two or three copies with the Original Cover raised. Does the voltage across PJ22A-10 on PWB-A and GND change to DC0V when the Toner Bottle is stopped and to DC5V when the Bottle is turned during the copy cycle? YES Replace PWB-A.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT040105A 1-5.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 C0400 Step 1 Check Item Result Does LA1 light up when the Start Key is pressed? YES 2 Does the voltage across PJ12A-11 on PWB-A and GND become DC4.3V or less when LA1 turns ON? NO 3 Disconnect CN7 (2P). Is there continuity across CN7-1 and 2 on the LA1 side? NO 4 Is the voltage across PJ2-1 and 2 on PU1 AC100V? Action Check the photo receiver of the AE Sensor for contamination. Replace PWB-H or PWB-A. Replace PWB-A. Check LA1 and TF2 for continuity.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT040106A 1-6.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 C0500, C0510 * After resetting a C0510 condition, C0500 will be shown if the same problem recurs. For this reason, the same troubleshooting procedure is used for C0500 and C0510. Step Check Item Result Action 1 Does H1 light up when the Power Switch is turned ON? YES Check TH1 for installation or clean it. NO Begin with step 3. YES Replace TH1. 2 Disconnect CN14 (4P). Is the resistance across CN14-2 and 3 on the TH1 side infinity? NO Replace PWB-A.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT040107A 1-7.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 C0600 Step Check Item 1 Does the Scanner start moving after the Power Switch has been turned ON? 2 Does the voltage across PJ16A-3 on PWB-A and GND change from DC5V to DC0V after the Power Switch has been turned ON? 3 Result Check Scanner Reference Position Sensor PC81. See p. T-3 (PWB-A (IC4A) APB0) YES YES NO Action Perform step 3. Replace PWB-E or M5. Replace PWB-A. YES Check the Scanner Drive Cable for tension and overload. Or, replace PWB-A.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1158SBT040084A 1-8.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 C0F10 Step Check Item Result YES Replace PWB-A. 1 Is the voltage across PJ12A-3 on PWB-A and GND in the range between DC2V and DC4V when the Start Key is pressed in the F3 operation? NO Check the photo receiver of the AE Sensor for contamination or replace PWB-H.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1158SBT040109A 1-9.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 Step Check Item Result 1 Is any code from among C0FE2 to C0FFF being shown? YES 2 Are jumper straps installed in the following position for J1 and J2 of UN2? J1: On the end not marked with “O” J2: On the end not marked with “O” NO 3 Does the LED of I/O port check PWB-A (IC5A) PA3 blink after the Power Switch has been turned ON? Action Perform step 4. Change the strap position of J1 and J2. YES Replace PWB-A. NO Replace UN2.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT0402A 2.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 Symptom Power is not supplied to the copier at all. Step Check Item 1 Is the source voltage being supplied to the circuit across PJ1-1 and 3 of PU2? NO 2 Is the voltage across PJ3-1 of PU2 and GND, and across PJ3-3 on PU2 and GND, DC24V? NO 3 Is the voltage across PJ1C-3 on PWB-C and GND, and across PJ1C-5 on PWB-C and GND, DC24V? 4 Only the control panel Indicators light up. RY1 is not energized.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1151SBT0403A 3.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 Code Step Result 1 2 Is the voltage across PJ1A-3 on PWB-A and GND in the range between DC0.5V and DC4.5V after the Start Key has been turned ON? E1 E2 Check Item Is the seal peeled off the opening or starter been fully charged? A Is the voltage across PJ1A-6 on PWB-A and GND 0V (is F4 blown)? T-46 NO YES NO Action Peel off the seal and turn the Power Switch OFF, then ON. Replace PWB-A. Replace the ATDC Sensor. YES Replace PWB-A.
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Interleaf EP1052 TROUBLESHOOTING 96.11.01 1158SBT000EA Copyright 1996 MINOLTA CO., LTD Printed in Japan Use of this manual should be strictly supervised to avoid disclosure of confidential information. MINOLTA CO., LTD.