Page 1 EP1054/EP1085/EP2030 GENERAL...
Page 2: Table Of Contents
2. PRECAUTIONS FOR INSTALLATION ............G-10 3. PRECAUTIONS FOR USE ................G-11 4. HANDLING OF THE CONSUMABLES ............G-12 5. SYSTEM OPTIONS ..................G-13 5-1. System Options of EP2030 ..............G-13 5-2. System Options of EP1085 ..............G-14 5-3. System Options of EP1054 ..............G-14...
Page 3: Specifications
Multi Bypass Table EXPOSURE SYSTEM : Mirror Scanning, Slit Exposure DEVELOPING SYSTEM : Minolta New Micro-Toning System CHARGING SYSTEM : Comb Electrode DC Negative Corona with Scorotron Sys- IMAGE TRANSFER : Visible Image Transfer by means of a Single-Wire DC...
Page 4 MULTIPLE COPIES : 1 to 99 WARMING-UP TIME : 30 sec. or less with room temperature of 23°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 1st Drawer Zoom Ratio Zoom Ratio...
Page 5 POWER/CURRENT CONSUMPTION (Copier Only) Fusing Exposure Heater Max. Power Voltage Lamp In Standby Lamp Consumption (Rating) (Rating) 115–120V 115V 1180W 935W 225W 900W 115–120V 120V 1220W 965W 225W 900W 115–120V 120–127V 1220–1290W 965–1070W 225W 900W 160V 220–240V 220–240V 1195–1270W 930–1060W 240W 900W POWER...
Page 6: Specifications Of Ep1085
Manual Bypass Table EXPOSURE SYSTEM : Mirror Scanning, Slit Exposure DEVELOPING SYSTEM : Minolta New Micro-Toning System CHARGING SYSTEM : Comb Electrode DC Negative Corona with Scorotron Sys- IMAGE TRANSFER : Visible Image Transfer by means of a Single-Wire DC Neg-...
Page 7 MULTIPLE COPIES : 1 to 99 WARMING-UP TIME : 30 sec. or less with room temperature of 23°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 1st Drawer Zoom Ratio Zoom Ratio...
Page 8 POWER/CURRENT CONSUMPTION (Copier Only) Fusing Exposure Heater Max. Power Voltage Lamp In Standby Lamp Consumption (Rating) (Rating) 115–120V 115V 1180W 935W 225W 900W 115–120V 120V 1220W 965W 225W 900W 115–120V 120–127V 1220–1290W 965–1070W 225W 900W 160V 220–240V 220–240V 1195–1270W 930–1060W 240W 900W POWER...
Page 9: Specifications Of Ep1054
Manual Bypass Table EXPOSURE SYSTEM : Mirror Scanning, Slit Exposure DEVELOPING SYSTEM : Minolta New Micro-Toning System CHARGING SYSTEM : Comb Electrode DC Negative Corona with Scorotron Sys- IMAGE TRANSFER : Visible Image Transfer by means of a Single-Wire DC Neg-...
Page 10 MULTIPLE COPIES : 1 to 99 WARMING-UP TIME : 30 sec. or less with room temperature of 23°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 1st Drawer Zoom Ratio Zoom Ratio...
Page 11 POWER/CURRENT CONSUMPTION (Copier Only) Fusing Exposure Heater Max. Power Voltage Lamp In Standby Lamp Consumption (Rating) (Rating) 115–120V 115V 1180W 935W 225W 900W 115–120V 120V 1220W 965W 225W 900W 115–120V 120–127V 1220–1290W 965–1070W 225W 900W 160V 220–240V 220–240V 1195–1270W 930–1060W 240W 900W POWER...
Page 12: Precautions For Installation
1174SBG0200A PRECAUTIONS FOR INSTALLATION Installation Site To ensure safety and utmost performance of the copier, the copier should NOT be used in a place: • Where it will be subject to extremely high or low temperature or humidity. • Which is exposed to direct sunlight. •...
Page 13: Precautions For Use
1174SBG0300A PRECAUTIONS FOR USE To ensure that the copier is used in an optimum condition, observe the following precau- tions. • Never place a heavy object on the copier or subject the copier to shocks. • Insert the power plug all the way into the outlet. •...
Page 14: Handling Of The Consumables
1174SBG0400A HANDLING OF THE CONSUMABLES Before using any consumables, always read the label on its container carefully. • Use the right toner. The applicable copier model name is indicated on the Toner Bottle. • 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.
Page 15: System Options
1174SBG0500A SYSTEM OPTIONS 1174SBG0501A 5-1. System Options of EP2030 1, 2 1151O007AA 1138O525AA 7, 8 1139O0020A 1174G001AA 1174G002AA 1174G003AA 1174G004AA 1174G006AA 1. Automatic Document Feeder AF-5 6. Duplex Unit AD-11 2. Duplexing Document Feeder AFR-12 7. 10-Bin Sorter S-106 3. Paper Feed Cabinet PF-112 8.
Page 16: System Options Of Ep1085
1138O525AA 1139O0170A 1139O0020A 1174G005AA 1. Automatic Document Feeder AF-5 2. Multi Bypass Table MB-4 3. 10-Bin Sorter S-106 4. Data Controller D-102 1174SBG0503A 5-3. System Options of EP1054 Except the U.S.A., Canada 1139O0170A 1174G005AA 1. Multi Bypass Table MB-4 G-14...
Page 17 EP1054/EP1085/EP2030 MECHANICAL/ ELECTRICAL...
Page 18 COTNENTS 1. CROSS-SECTIONAL VIEW ................M-1 1-1. Cross-Sectional View of 23 cpm Copier ..........M-1 1-2. Cross-Sectional View of 18 cpm Copier ..........M-2 1-3. Cross-Sectional View of 15 cpm Copier ..........M-3 2. COPY PROCESS .................... M-4 3. DRIVE SYSTEM ....................M-6 4.
Page 19 13-3.Paper Lifting Plate ................... M-45 13-4.Drawer-in-Position Detection ..............M-46 13-5.Universal Tray (1st Drawer) Paper Size Detection ........M-47 13-6.Paper Empty Detection ................M-48 13-7.Paper Separating Mechanism ..............M-49 13-8.Paper Take-Up Roll ................. M-50 13-9.Paper Take-Up Retry Control ..............M-51 13-10.VERTICAL PAPER TRANSPORT ............M-52 14.
Page 20: Cross-Sectional View
1174SBM0100A CROSS-SECTIONAL VIEW 1174SBM0101A 1-1. Cross-Sectional View of 23 cpm Copier 1174M005AB 3rd Mirror 17. Image Transfer/Paper Separator Coronas 2nd Mirror 18. Suction Unit 1st Mirror 19. Cleaning Roller Exposure Lamp 20. Upper/Lower Fusing Roller Lamp Reflector 21. Paper Exit Roller Lens 22.
Page 21: Cross-Sectional View Of 18 Cpm Copier
1174SBM0102A 1-2. Cross-Sectional View of 18 cpm Copier 1174M004AB 3rd Mirror 17. Image Transfer/Paper Separator Coronas 2nd Mirror 18. Suction Unit 1st Mirror 19. Cleaning Roller Exposure Lamp 20. Upper/Lower Fusing Roller Lamp Reflector 21. Paper Exit Roller Lens 22. Exit/Duplex Switching Guide Cleaning Blade (for optional Sorter) PC Drum Charge Corona...
Page 22: Cross-Sectional View Of 15 Cpm Copier
1174SBM0103A 1-3. Cross-Sectional View of 15 cpm Copier Except U.S.A., Canada 1174M011AA 3rd Mirror 13. Synchronizing Roller 2nd Mirror 14. Transport Roller 1st Mirror 15. Paper Take-Up Roll Exposure Lamp 16. Drawer Lamp Reflector 17. Image Transfer/Paper Separator Coronas Lens 18.
Page 23: Copy Process
1174SBM0200A COPY PROCESS MULTI BYPASS TABLE 1139M002AA 1. PC DRUM 8. PAPER SEPARATION 2. DRUM CHARGING 9. CLEANING 3. IMAGE ERASE 10. MAIN ERASE 4. EXPOSURE 11. TRANSPORT 5. DEVELOPING 12. FUSING 6. PAPER FEEDING 13. PAPER EXIT 7. IMAGE TRANSFER 1.
Page 24 6. Paper Feeding Paper is fed either automatically from the 1st or 2nd Drawer, or manually via the Multi Bypass Table or Manual Bypass Table. Each Drawer has fingers that function to separate the top sheet of paper from the rest at take-up. (2nd Drawer: 23 cpm Copier Only) (For more details, see “13.
Page 25: Drive System
1174SBM0300A DRIVE SYSTEM This copier is equipped with two main drive motors, the PC Drive Motor that drives the upper half of the copier (Imaging Unit) and the Main Drive Motor which gives drive for the lower half of the copier (paper take-up/feeding, transport mechanism and Fusing Unit). Each has its own drive transmitting gears and timing belts as illustrated below.
Page 26: Sequential Explanation
1174SBM0400A SEQUENTIAL EXPLANATION Numbers given in rectangles in the following flowchart are timer values in seconds. A The power cord is plugged into the outlet. Power cord is plugged in. AC24V for Drum heating (Transformer) Drum Dehumidifying Only when Dehumidifying Heater Switch is ON Paper Dehumidifying...
Page 27 C The Fusing Unit temperature reaches 205°C. Fusing Thermistor detects 205°C. ON/OFF Fusing Heater Lamp The Fusing Unit temperature control is started.
Page 28 D The Start Key is pressed. Start Key ON PC Drive Motor Main Erase Lamp Main Drive Motor Image Erase Lamp All LEDs are turned ON. Developing Bias (High Voltage Unit) Paper Separator Corona (High Voltage Unit) Cleaning Bias (High Voltage Unit) Some models have no Bias Seal installed depending on their marketing areas.
Page 29 Approx. 0.5 Scanner Motor Scanner Reference Position Sensor Image Erase Lamp LEDs ON/OFF control is started. Approx. 0.2 Approx. 0.5 Synchronizing Roller Clutch Paper Transport Clutch F A scan motion is completed. SCEND signal: LOW Approx. 0.2 All LEDs of Image Erase Lamp ON Approx.
Page 30 G The last paper moves past Transport Roller Sensor. Transport Roller Sensor OFF Approx. 0.6 Paper Leading Edge Detecting Sensor Synchronizing Roller Clutch Approx. 0.4 PC Drum Charge Corona/Image Transfer Approx. 0.7 Corona (High Voltage Unit) Approx. 0.7 PC Drive Motor Main Erase Lamp Image Erase Lamp Developing Bias (High Voltage Unit)
Page 31: Imaging Unit
1174SBM0500A 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.
Page 32: Imaging Unit Drive
1174SBM0501A 5-1. 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. Developer Mixing Screw Drive Gear Bucket Roller Drive Gear Imaging Unit Drive Sleeve/Magnet Roller...
Page 33: Imaging Unit Toner Recycling
1174SBM0502A 5-2. Imaging Unit 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.
Page 34: Pc Drum
1174SBM0600A 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).
Page 35: Drum Charging
1174SBM0700A 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 the High Voltage Unit.
Page 36: Image Erase Lamp
1174SBM0800A 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 the Image Erase Lamp are turned ON before development takes place, thereby reducing to a mini- mum the unnecessary potential on the surface of the PC Drum.
Page 37 The 31 LEDs of the Image Erase Lamp are grouped as shown below. The table at the bot- tom of this page shows which LEDs turn ON and OFF for different paper sizes and different zoom ratios. LED Group No. LED No.
Page 38 1174T22MCB Control Signal WIRING DIAGRAM PWB-A PJ16A-4A ~ 9A M-19...
Page 39: Optical Section
1174SBM0900A OPTICAL SECTION As the Scanner is moved by the Scanner Motor, the light from the Exposure Lamp 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.
Page 40: Exposure Lamp
1174SBM0901A 9-1. Exposure Lamp An AC halogen lamp is used as the Exposure Lamp. As the exposure level is adjusted on the control panel, the duty ratio of the pulse of AVR Remote from the Master Board changes to increase or decrease the Exposure Lamp volt- age, thereby changing the image density.
Page 41: Ae Sensor
1174SBM0902A 9-2. AE Sensor In the Auto Exposure Mode, the AE Sensor on the AE Sensor Board 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 measure- ment, the Exposure Lamp voltage is automatically increased or decreased so that copies of consistent quality are produced.
Page 42: Lamp Reflectors
1174SBM0903A 9-3. Lamp Reflectors The Main Reflector ensures that light from the Exposure Lamp exposes all areas of the original. The Auxiliary Reflector reflects light onto the areas that the Exposure Lamp cannot illuminate when an original that does not lie flat on the Original Glass (such as a book) is being used.
Page 43: Scanner And 2Nd/3Rd Mirror Carriage Movement
1174SBM0905A 9-5. 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 the Scanner Motor. Both the Scanner and 2nd/3rd Mirrors Carriage slide along the Scanner Shaft at the rear side.
Page 44 The Scanner starts the scan motion as a Scan signal is output from the Master Board. At the start of a scan motion and other heavy load conditions, the Scanner Motor requires a large amount of current. The Current 1 or 2 signal from the Motor Drive Board is selected accordingly to vary the amount of current supplied to the Scanner Motor.
Page 45: 4Th Mirror Movement
1174SBM0906A 9-6. 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 the Mirror Motor (stepping motor). The Levers of the Holder to which the Mirror is mounted slide along a tilted rail to change the Mirror angle.
Page 46: Lens Movement
1174SBM0907A 9-7. Lens Movement The Lens is moved by the Lens Drive Cable which is driven by the Lens Motor (stepping motor). The motor drive pulses sent from the Motor Drive Board drive the Lens Motor to move the Lens a given distance, corresponding to the zoom ratio, from the reference posi- tion determined by the Lens Reference Position Sensor.
Page 47: Original Size Detecting Sensors (23 Cpm Copier Only
1174SBM1000A ORIGINAL SIZE DETECTING SENSORS (23 cpm COPIER ONLY) The four sensors fixed in the optical section receive the light reflected off the original to determine the size of the original in the Auto Paper and Auto Size mode. (The image den- sity of the original, or OD, that can be detected is 0.6 or less.) 1174SBM1001A 10-1.
Page 48: Sensor Locations
1174SBM1003A 10-3. Sensor Locations • The number and location of the Original Size Detecting Sensors vary depending on the marketing area as shown below. Sensors (PC114) (PC116) (PC113) (PC115) Areas Metric Areas Inch Areas Mixed inch/metric Areas U.S.A and Canada Areas : Standard : Optional NOTE...
Page 49: Size Detection
1174SBM1004A 10-4. Size Detection • The Original Size Detecting Board reads the output data provided by the original size detecting sensors. By comparing the data from each sensor with the threshold level, it determines whether there is an original placed on the Original Glass. The Original Size Detecting Board then determines the size of the original according to the combination of the data.
Page 50: Original Size Detection Timing
1174SBM1005A 10-5. Original Size Detection Timing Master CPU on the Master Board affirms and resets the readings of the original size at the following timings. • Takes size readings: When the Original Cover is raised to an angle of 15° or more (Origi- nal Cover Detecting Sensor is deactivated).
Page 51: Original Cover Angle Detection (23 Cpm Copier Only
1174SBM1006A 10-6. Original Cover Angle Detection (23 cpm Copier Only) The Original Cover Detecting Sensor detects the angle of the Original Cover as it is raised. The following control is provided. Original Cover raised to an angle of 15° or more: The size of the original is read by the Original Size Detecting Sensors.
Page 52: Development
1174SBM1100A DEVELOPMENT The Developing Unit built into the Imaging Unit performs the following functions: • Mixes the toner and carrier well to ensure that a sufficient amount of toner is positively charged. • Detects the toner-to-carrier ratio of the developer by means of the ATDC Sensor and replenishes the supply of toner as necessary.
Page 53: Atdc Sensor
1174SBM1101A 11-1. ATDC Sensor The ATDC Sensor 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.
Page 54 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.
Page 55: Magnet Roller
1174SBM1102A 11-2. 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. If developer is compacted and clogs at the Doctor Blade and, as a result, part of the surface of the Sleeve/Magnet Roller is not covered with developer, the nearby developer around S2b goes to those uncovered areas because of its weak magnetic force.
Page 56: Developing Bias
1174SBM1103A 11-3. 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).
Page 57: Doctor Blade
1174SBM1104A 11-4. Doctor Blade The Doctor Blade installed over the Sleeve/Magnet Roller regulates the height of the devel- oper brush on the surface of the Sleeve Roller. The Blade is perpendicular to the direction of movement of the Sleeve/Magnet Roller to minimize variations in the distance between the Doctor Blade and Sleeve/Magnet Roller as the Sleeve/Magnet Roller moves.
Page 58: Toner Hopper
1174SBM1200A TONER HOPPER 1174SBM1201A 12-1. 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°...
Page 59: Shutter
1174SBM1203A 12-3. 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 1139M026AA 1139M027AA...
Page 60: Toner Bottle Vibration
1174SBM1205A 12-5. Toner Bottle Vibration When the indentations at three places on the left-hand end (as viewed when the Toner Bot- tle 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.
Page 61: Toner Replenishing Control
1174SBM1206A 12-6. 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.
Page 62: Paper Take-Up/Feed Section (2Nd Drawer: 23 Cpm Copier Only
1174SBM1300A PAPER TAKE-UP/FEED SECTION (2ND DRAWER: 23 cpm COPIER ONLY) The copier is equipped with two Paper Drawers, 1st and 2nd, that can be slid out to the front of the copier. Each can hold up to 250 sheets of paper. The 1st Drawer is a universal paper size type, while the 2nd Drawer is a fixed paper size type.
Page 63: 13-1.Edge Guide And Trailing Edge Stop
Marketing Area 1st Drawer 2nd Drawer Switch A3L, B4L, A4L, A4C, A5L, 8” × 13” A3L, B4L, A4L, A4C, A5L, B5C, B5L (Taiwan Only), 8” × 13”, 8-1/4” × 13”, 10” × 8” [QUARTO], Metric 8.5” × 13” , 8-1/4” × 13” 210 ×...
Page 64: 13-2.Drawer Positioning
1174SBM1302A 13-2. Drawer Positioning Each of the 1st and 2nd Drawers 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 mag- net 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.
Page 65: 13-4.Drawer-In-Position Detection
1174SBM1304A 13-4. Drawer-in-Position Detection The copier detects that the Drawer is slid into position as follows. 1st Drawer When the 1st Drawer is slid into the copier, the Drawer Frame presses the 1st Drawer Set Detecting Switch installed on the back panel of the copier. 2nd Drawer When the 2nd Drawer is slid into the copier, the Rib on the Drawer Frame blocks the 2nd Drawer Set Sensor.
Page 66 1174SBM1305A 13-5. Universal Tray (1st Drawer) Paper Size Detection The length (feeding direction) and width (crosswise direction) of the paper are indepen- dently detected and the copier determines the paper size by combining the two separate detections made. On the bottom of the tray is a lever fitted to the Trailing Edge Stop and another lever fitted to the Edge Guide.
Page 67: 13-6.Paper Empty Detection
<Control> Control Signal WIRING DIAGRAM PWB-A PJ15A-1 14-A PWB-A PJ15A-3 14-A PWB-A PJ15A-6 15-A PWB-A PJ15A-9 15-A PWB-A PJ2A-4 17-B 1174SBM1306A 13-6. 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.
Page 68: 13-7.Paper Separating Mechanism
1174SBM1307A 13-7. Paper Separating Mechanism Each Drawer has Fingers that 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.
Page 69 1174SBM1308A 13-8. 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.
Page 70: 13-9.Paper Take-Up Retry Control
1174T21MCA Control Signal Energized Deenergized WIRING DIAGRAM PWB-A PJ4A-9 17-F PWB-A PJ3A-2 17-D Control Signal Blocked Unblocked WIRING DIAGRAM PC55 PWB-A PJ4A-2 17-F PC56 PWB-A PJ3A-7 17-E 1174SBM1309A 13-9. 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 Sensor within T sec.
Page 71: 13-10.Vertical Paper Transport
1174SBM1310A 13-10. 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 Roll- ers reaches the Transport Rollers and is then fed up to the Synchronizing Rollers. The Transport Rollers are turned and stopped by the Paper Transport Clutch.
Page 72: Multi Bypass Table
1174SBM1400A MULTI BYPASS TABLE 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. Standard on 23 cpm copier, optional on 18 cpm copier and 15 cpm copier. Lever Manual Feed Paper Empty...
Page 73 1174SBM1401A 14-1. 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, the Manual Feed Paper Take-Up Solenoid is deenergized causing the Paper Take-Up Rolls to press the paper stack downward and take up a sheet of paper.
Page 74: 14-2.Paper Take-Up Retry Control
1174T18MCA Control Signal Energized Deenergized WIRING DIAGRAM CL51 PWB-A PJ5A-4B 17-H SL51 PWB-A PJ5A-2B DOWN 17-H SL51 PWB-A PJ5A-3B 1174SBM1402A 14-2. Paper Take-Up Retry Control To minimize the occurrence of a paper misfeed due to a slippery Paper Take-Up Roll, the Manual Feed Paper Take-Up Clutch is kept deenergized for a given period of time before it is energized again, if a sheet of paper fails to reach the Transport Roller Sensor even after the lapse of a given period of time after the clutch has first been energized.
Page 75: 14-3.Paper Separating Mechanism
1174SBM1403A 14-3. Paper Separating Mechanism The paper separating mechanism ensures that only the top sheet of paper is fed in by sep- arating 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.
Page 76: Synchronizing Rollers
1174SBM1500A SYNCHRONIZING ROLLERS The Synchronizing Rollers, operating in phase with the Scanner’s 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.
Page 77: 15-2.Paper Dust Remover
1174SBM1501A 15-1. Upper Synchronizing Roller Positioning Since the Upper Synchronizing Roller is fitted to the Imaging Unit, it must be correctly posi- tioned 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.
Page 78: 15-3.Synchronizing Roller Control
1174SBM1503A 15-3. Synchronizing Roller Control The Synchronizing Rollers are started as the Synchronizing Roller Clutch is energized upon reception of a signal from the Master Board. 1174T17MCA t: The value of t depends on the settings made in Adjust Mode. Control Signal Energized Deenergized WIRING DIAGRAM...
Page 79: Image Transfer And Paper Separation
1174SBM1600A 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. The Corona Unit is provided with a Corona Wire cleaning mechanism: the operator has only to pull out the Lever on which the Cleaner is mounted from the front of the copier, which cleans the Wire.
Page 80 1174T14MCA Control Signal WIRING DIAGRAM Image Transfer PWB-A PJ11A-9A Corona Paper Separator PWB-A PJ11A-8A Corona M-61...
Page 81: Main Erase Lamp
1174SBM1700A MAIN ERASE LAMP The Main Erase Lamp 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 1139M044AA The Main Erase Lamp consists of five tungsten-filament lamps mounted on a Board. Slit Copier Tungsten-Filament Lamp...
Page 82: Paper Separator Fingers
1174SBM1800A 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.
Page 83: Cleaning Unit
1174SBM1900A 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.
Page 84: 19-1.Cleaning Bias
1174SBM1901A 19-1. Cleaning Bias Except the U.S.A., Canada, and Europe A Cleaning Bias Seal is installed to minimize damage to the PC Drum from acid paper. Toner Antispill Mylar PC Drum 1139M023AA Cleaning Bias Seal 1151T02MCA Control Signal WIRING DIAGRAM Cleaning Bias PWB-A PJ11A-8A M-65...
Page 85: Paper Transport
1174SBM2000A 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 the Main Drive Motor. The Suction Fan Motor draws the paper onto the turning Suction Belts for positive transport of the paper.
Page 86: Fusing Unit
1174SBM2100A 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.
Page 87: Fusing Temperature Control
1174SBM2101A 21-1. Fusing Temperature Control The Upper Fusing Roller is heated by a Fusing Heater Lamp which is an AC halogen lamp. The Fusing Thermistor installed on the Upper Fusing Roller helps keep the optimum fusing temperature. The fusing temperature is normally controlled at 195°C. To ensure good fusing perfor- mance, however, even when the Lower Fusing Roller remains cool immediately after warm- up in the early morning, the temperature is controlled as follows when the copier is turned If the initial fusing temperature is less than 90°C:...
Page 88: 21-2.Fusing Rollers Pressure Mechanism
1174SBM2102A 21-2. Fusing Rollers Pressure Mechanism Pressure Springs are installed at both ends of the Lower Fusing Roller. These springs con- tact 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.
Page 89: Exit Unit
1174SBM2200A 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 sur- face of the sheet of paper being fed out of the Fusing Unit to neutralize any static charge left on it.
Page 90: 22-2.Paper Exit Sensor
1174SBM2202A 22-2. Paper Exit Sensor 1st Paper Exit Sensor 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. Actuator Paper Exit Roller 1139M080AA Paper Exit Sensor PC53 Control Signal...
Page 91: Exit/Duplex Switching Unit (Option
1174SBM2300A EXIT/DUPLEX SWITCHING UNIT (OPTION) If the copier is configured with an optional Sorter or Staple Sorter, or Duplex Unit (installed in the Cabinet), the Exit/Duplex Switching Unit must be fitted to the exit section of the copier. Exit/Duplex Switching Plate Drive Transmitting Gear (coupled to a gear in the Exit Section of the copier)
Page 92: Dehumidifying Switch (Option
1174SBM2400A DEHUMIDIFYING SWITCH (OPTION) To prevent image transfer efficiency from being reduced due to damp paper in highly humid weather, a Paper Dehumidifying Heater is installed on the base frame of the copier under the 2nd Drawer. A Drum Dehumidifying Heater is located under the Lower Guide Plate to prevent the PC Drum from forming condensation.
Page 93: Cooling Fan
1174SBM2500A COOLING FAN Ozone produced by the PC Drum Charge Corona and Image Transfer/Paper Separator Coronas is drawn out of the copier by the Cooling Fan Motor and absorbed by the Ozone Filter. The Cooling Fan Motor is turned either at high or low speed. It turns at high speed during the time the main motor is on and for 3 seconds after the power switch is turned on.
Page 94: Optical Section Cooling Fan
1174SBM2600A OPTICAL SECTION COOLING FAN The Optical Section Cooling Fan Motor draws outside air into the copier and blows it against the Original Glass which is heated by the lit Exposure Lamp. The Filter at the intake port of the Fan prevents dust and dirt from entering the Optical Sec- tion of the copier.
Page 95: Memory Backup
1174SBM2700A MEMORY BACKUP IC1 (RAM) of the RAM Board connected to the Master Board stores the setting/adjustment values set in the Tech. Rep. Modes as well as the counter counts. The Backup Battery is mounted on the RAM Board to prevent the contents of memory from being lost when the power cord is unplugged or the RAM Board removed from the copier.
Page 96 EP1054/EP1085/EP2030 SWITCHES ON PWBs/ TECH. REP. SETTINGS 17196...
Page 97 CONTENTS 1. PRECAUTIONS FOR HANDLING THE PWBs ..........S-1 1-1. Precautions for Transportation and Storage ..........S-1 1-2. Precautions for Replacement and Inspection .......... S-1 2. CONTROL PANEL KEYS AND INDICATORS ..........S-2 2-1. 15 cpm Copier ..................S-2 2-2. 18 cpm Copier ..................S-4 2-3.
Page 98: Precautions For Handling The Pwbs
PRECAUTIONS FOR HANDLING THE PWBs 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).
Page 99: Control Panel Keys And Indicators
CONTROL PANEL KEYS AND INDICA- TORS For more details, see the “Operator’s Manual” shipped with the copier. 2-1. 15 cpm Copier 1. 10-Keys 9. Auto Exposure Mode Key • Numeric keypad used for setting the num- • Selects either the Auto or Manual Expo- ber of copies to be made, zoom ratio, and sure, or Photo mode.
Page 100 1158O001DA...
Page 101: Cpm Copier
For more details, see the “Operator’s Manual” shipped with the copier. 2-2. 18 cpm Copier 1. 10-Keys 9. Auto Exposure Mode Key • Numeric keypad used for setting the num- • Selects either the Auto or Manual Expo- ber of copies to be made, and Tech. sure, or Photo mode.
Page 102 1174S001AA...
Page 103: Cpm Copier
For more details, see the “Operator’s Manual” shipped with the copier. 2-3. 23 cpm Copier 1. 10-Keys 13. Mixed Original Detection Key • Numeric keypad used for setting the num- • Selects the Mixed Original mode. ber of copies to be made, zoom ratio, and Tech.
Page 104 1151O041DA...
Page 105: Functions Of Switches And Other Parts On Pwbs
FUNCTIONS OF SWITCHES AND OTHER PARTS ON PWBs 3-1. PWB Location Tech. Rep. Setting Switches Board PWB-A Board 1151S001AA 3-2. Tech. Rep. Setting Switches Board 1151S002AA Symbol Name Description Trouble Reset Switch 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.
Page 106 <Clearing Procedures> • 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. • Memory Clear Test Point TP2 1. Turn OFF the Power Switch. 2.
Page 107: User Mode
USER MODE • This mode is used to make various settings according to the user’s needs. 4-1. Functions Available from the User Mode Function Function Mixed Original Detection Priority Orig. Copy type Lightweight Original Auto clear ON/OFF Smaller Originals Energy Saver ON Timing Auto Clear for Plug-In Auto Power OFF Disabling Counter...
Page 108: User Mode Setting Details
[User Mode] 4-3. User Mode Setting Details Function No. Setting (The default is Highlighted <Mixed Original Detection> Select whether to turn ON the Mixed Original Detection function or not For 23 cpm (high-speed processing). Copier only ON: The copier enables its Auto Paper Selection (APS) or Auto Size Selection (AMS) function for all originals loaded in the ADF (i.e., it can make copies from originals of assorted sizes loaded in a set).
Page 109 [User Mode] Function No. Setting (The default is Highlighted <Auto Power OFF Disabling> Select whether to enable or disable the setting of “0: Disabled” for “Auto Power OFF Timing” available from the User mode. Data Description Disabled Enabled <File Margin> Select the margin making method in the File Margin mode.
Page 110 [User Mode] Function No. Setting (The default is Highlighted U-13 <Optimum Exposure Level> Determine the optimum exposure level in the Auto as well as the Man- ual Exposure mode. Data Description Data Description Low level 4: – 2.0 steps Standard ±0 steps Low level 3: –...
Page 111 [User Mode] Function No. Setting (The default is Highlighted U-18 <Priority Orig. Copy Type> For 23 cpm Determine the orig. copy type automatically selected when the Copier only Power Switch is turned ON or Panel Reset key is pressed. The setting made in “C-40 (Orig.
Page 112 [User Mode] Function No. Setting (The default is Highlighted U-23 <Auto Clear for Plug-In Counter> Select whether to activate the auto clear (panel reset) function when For 18/23 cpm the Plug-In Counter is pulled out. Copier only Data Auto clear is not acti- Description Auto clear is activated.
Page 113: Service Mode
SERVICE MODE • This mode is used by the Tech. Rep. to set, check, adjust, and/or program various ser- vice functions. 5-1. Service Mode Function Tree F1 : Paper passage test F2 : PC Drum Charge/Image Transfer Coronas output F3 : Exposure Lamp voltage adjustment F4 : Paper Separator Corona output F5 : AE Sensor automatic adjustment Test...
Page 114: Entering The Service Mode
Service Mode No. 4 PM Counter and Ports/Options Counter Service Mode No. 5 Paper Size Counter Service Service Mode No. 6 Misfeed Counter Mode Service Mode No. 7 Malfunction Counter Service Mode No. 8 Parts/Supplies Life Counter Service Mode No. 9 Paper Size Input For 23 cpm Copier only Display...
Page 115: Settings In The Service Mode
5-3. Settings in the Service Mode (1) Test • This function allows the Tech. Rep. to perform various functional tests and adjustments. <Setting Procedure> 1. Enter the number assigned to the desired test from the 10-Keys. (The number appears on the Multi-Copy Display.) 2.
Page 116 [Service Mode Test] Test No. Description <Image Erase Lamp Check> This test checks whether the Image Erase Lamp turns ON and OFF properly. (It runs for one complete copy cycle.) <Procedure> • Press the Start key after the copier has completed warming up. This causes the lamp to make a checkered pattern.
Page 117: Tech. Rep. Choice
(2) Tech. Rep. Choice • This function allows the Tech. Rep. to make various settings and adjustments. <Setting Procedure> 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 Indica- tor shows “C”...
Page 118 [Service Mode Tech. Rep. Choice] Choice No. Setting (The default is Highlighted <Total Counter Counting> Select the conditions (paper size and 2-sided copying) by which the Total Counter count is increased. Data 1 count per 1 Description Multiple count-up Multiple count-up copy cycle NOTE See the Count-up Table for details.
Page 119 [Service Mode Tech. Rep. Choice] Choice No. Setting (The default is Highlighted <PM Counter> Select either PM Counter or Copy Kit Counter. Data Description PM Counter Copy Kit Counter: Copying not inhibited after the counter has counted down to zero. Copy Kit Counter: Copying inhibited after the counter has counted down to zero.
Page 120 [Service Mode Tech. Rep. Choice] Choice No. Setting (The default is Highlighted C-20 <Leading Edge Erase> Varies the width of erase on the leading edge. Data Description Smaller width Greater width NOTE When the setting is changed, it results in the erase width being changed by about 3 mm.
Page 121 [Service Mode Tech. Rep. Choice] Choice No. Setting (The default is Highlighted C-40 <Orig. Copy Type> For 23 cpm Determine the orig. copy types that can be selected in the “Priority Copier only Orig. Copy Type” available from the User mode. Data Only the types involving All orig.
Page 122: Altering Fixed Zoom Ratios (For 23 Cpm Copier Only
(3) Altering Fixed Zoom Ratios (For 23 cpm Copier Only) • This function allows the Tech. Rep. to change the fixed zoom ratios over the range between ×0.500 and ×2.000 according to the needs of the user. <Setting Procedure> 1. Select the Altering Fixed Zoom Ratios function. 2.
Page 123: Paper Size Counter
<Setting a PM Counter Count> 1. Show the count of the PM Counter (IU Service Life Indicator) and clear it. 2. Enter the desired count from the 10-Keys. NOTE Press the Stop key to undo the clearing command. 3. Press the Start key to validate the new count setting. <Clearing a Count>...
Page 124: Misfeed Counter
(6) Misfeed Counter • This function shows the number of misfeeds that have occurred at different locations in the copier (count-up type counter). The Monitor Display tells the location of the misfeed by a lit LED. The count is shown on the Zoom Ratio Indicator and the misfeed code is given on the Multi-Copy Display.
Page 125: Malfunction Counter
(7) Malfunction Counter • 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 Zoom Ratio Indicator Multi-Copy Display ATDC Sensor malfunction (F30) Count: 12...
Page 126: Parts/Supplies Life Counter
(8) Parts/Supplies Life Counter • 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 Multi-Copy Indicator Display Shown alternately <Setting Procedure>...
Page 127: Paper Size Input (For 23 Cpm Copier Only
(9) Paper Size Input (For 23 cpm Copier Only) • This function allows the Tech. Rep. to enter the size of the paper loaded in each drawer (except the 1st Drawer which is a Universal Tray). <Setting Procedure> 1. Select the Paper Size Input function. 2.
Page 128: Adjust Mode
ADJUST MODE • The Adjust mode is used to adjust the optical system at the factory. Use this mode only when the RAM Board (PWB-Y) has been replaced and memory clear performed. When- ever PWB-Y 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.
Page 129: Settings In The Adjust Mode
6-3. Settings in the Adjust Mode [Service Mode Adjust Mode] Adjust Mode Setting A0 Lens focal length Corrects variations in the Lens focal length (according to the correction grouping of the Lenses). Data Short focal Long focal Description Standard (0) length (−) length (+) A1 Lens full size...
Page 130 [Service Mode Adjust Mode] Adjust Mode Setting A5 Reduction Corrects registration between the leading edge of the original and registration that of the image in a reduction mode by varying the Synchroniz- adjustment ing Roller start timing. Data ..−5.6 mm ..
Page 131: Function Setting Requirements At Replacement Of Parts
FUNCTION SETTING REQUIREMENTS AT REPLACEMENT OF PARTS • 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 Developer Exposure Cleaning Fusing Board...
Page 132 EP1054/EP1085/EP2030 DIS/REASSEMBLY, ADJUSTMENT 18605...
Page 133 CONTENTS 1. SERVICE INSTRUCTIONS ................D-1 1-1. INSTRUCTIONS FOR HANDLING THE PWBs WITH MOS ICs ..... D-1 1-2. HANDLING OF THE PC DRUM .............. D-1 1-3. PARTS WHICH MUST NOT BE TOUCHED ........... D-4 Screws ..................... D-4 Variable Resistors on Board ............D-4 Other Screws ...................
Page 134 Replacement of the Ozone Filter ............. D-39 2-8. FUSING UNIT ..................D-40 Removal of the Fusing Unit ............. D-40 Cleaning of the Pre-Fusing Guide Plate .......... D-41 Removal of the Upper Fusing Roller ..........D-41 Cleaning of the Upper Fusing Roller ..........D-43 Cleaning of the Upper Paper Separator Fingers ......
Page 135: Service Instructions
SERVICE INSTRUCTIONS 1-1. 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: • During transportation or when in storage, new P.W. Boards must not be indiscriminately removed from their protective conductive bags.
Page 136 If, however, the surface is contaminated with fingerprints, clean it using the following proce- dure. 1. Place the PC Drum into one half of its container. 1076D001 2. Gently wipe the residual toner off the surface of the PC Drum with a dry, Dust-Free Cotton Pad. A.
Page 137 NOTES • The Organic Photoconductor Drum is softer than CdS and Selenium Drums and is there- fore susceptible to scratches. • Even when the PC Drum is only locally dirtied, wipe the entire surface. • Do not expose the PC Drum to direct sunlight. Clean it as quickly as possible even under interior illumination.
Page 138: Parts Which Must Not Be Touched
1-3. 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 he field. The basic rule is not to remove or loosen the screws to which red paint is applied. In addi- tion, 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.
Page 139: Disassembly/Reassembly
DISASSEMBLY/REASSEMBLY 2-1. DOORS, COVERS, AND EXTERIOR PARTS: IDENTIFICATION AND REMOVAL PROCEDURES <23 cpm copier> <15/18 cpm copier> 11 ( 1) 16 ( 1) 1151D027AA 1151D001AA ( 1: 23 cpm copier only) 1151D028AA...
Page 140 Part Name Removal Procedure Swing down No.1. → Remove one screw that secures the Front Door 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.
Page 141 Part Name Removal Procedure Swing down No.1. → Release and swing up the Upper Half of Upper Left Cover the copier. → Remove four screws that secure the Upper Left Cover. Swing down No.1. → Release and swing up the Upper Half of Middle Front Left the copier.
Page 142: Removal Of Pwbs
2-2. REMOVAL OF PWBs • 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. • Replacement of a PWB may call for readjustments or resetting of particular items. •...
Page 143 Symbol Part Name Removal Procedure Open 1. → Release and swing up the Upper Half of PWB-A Master Board the copier. → Remove 19. Power Supply Board Open 1. → Release and swing up the Upper Half of PWB-C the copier. → Remove 17 (18/23 cpm copier only), 18, and 19.
Page 144: Belt Installations
2-3. BELT INSTALLATIONS • Rear View Drive/Suction Unit 1151D052AB Paper Take-Up Unit <18/23 cpm copier> <15 cpm copier> 1151D050AA 1142D005AA D-10...
Page 145: Paper Take-Up/Transport Sections
2-4. PAPER TAKE-UP/TRANSPORT SECTIONS (1) Removal of the Paper Take-Up Unit 1. Remove the Multi Bypass Table. (15/18 cpm copier: OPTION) See p. D-15. (NO 1 ~ 7) 2. Slide out the 1st and 2nd (23 cpm copier only) Drawers. 1139D084AA 3.
Page 146: Removal Of The Paper Take-Up Rolls
(2) Removal of the Paper Take-Up Rolls 1. Remove one screw to remove the Paper Take-Up Roll. 1139D088AA (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.
Page 147: Disassembly Of The Suction Unit
(5) Disassembly of the Suction Unit 1. Remove the four Suction Drive Rolls and six bush- ings by pulling them in the direction of the arrow. 1151D004AA 2. Snap off the three E-rings from the Suction Drive Unit. 3. Remove the gear and bushings. 1139D094AA 4.
Page 148: Replacement Of The Paper Lifting Springs (2Nd Drawer): 23 Cpm Copier Only
(6) Replacement of the Paper Lifting Springs (2nd Drawer): 23 cpm copier only Remark • The replacement springs are installed on the underside of the 2nd Drawer. 1139U044AA 1. Remove the Stoppers of the 2nd Drawer and the 2nd Drawer. 1136P243AA 2.
Page 149: Disassembly Of The Multi Bypass Table (15/18 Cpm Copier: Option
(7) Disassembly of the Multi Bypass Table (15/18 cpm copier: OPTION) 1. Remove the Right Door. 1139D099AA 2. Remove three screws and the Large Cover. 4425U408AA 3. Remove one screw and the Small Cover. 1139D227AA 4. Remove three screws and the Guide Lever Unit. 1139D222AA 1139D223AA D-15...
Page 150 5. Remove four screws and the Multi Bypass Table. 6. Unplug the Multi Bypass Table connector. 1139D240AA 7. Remove one screw and the Multi Bypass Table. 1139D225AA 8. Unplug one connector. 9. Remove the Tension Unit. 1151D018AA 10. Remove two screws and the Clutch Mounting Bracket.
Page 151 12. Remove four screws and the Separator Guide Plate Unit. 1139D103AA 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). 1139D104AA 13. Remove two screws and the Lever. 1139D105AA 14.
Page 152 16. Remove three screws and the Solenoid Mounting Bracket. 1139D108AA 17. Unplug one solenoid connector. 18. Unplug one photosensor connector and remove the harness from the clamp. 1139D109AA NOTE When reinstalling the Solenoid Mounting Bracket, make sure that the Solenoid is in the deenergized position.
Page 153 21. Snap off one C-clip and remove the Paper Take-Up Roll. 1139D113AA D-19...
Page 154: Optical Section
2-5. OPTICAL SECTION (1) Removal of the Lens Drive Cable 1. Remove two screws and the Optical Section Cover. 1139D114AA 2. Remove three screws and the Lens Cover. 1139D115AA 3. Remove two screws, two clamps and the Lens Motor Unit. 1139D116AA 4.
Page 155: Winding Of The Lens Drive Cable
(2) Winding of the Lens Drive Cable 1. Hold the Cable Drive Gear in position with its Bead at the bottom. 1139D119AA 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. 1139D120AA 3.
Page 156: Removal Of The Scanner Drive Cable
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. 1139D124AA 7. Wind the shorter length of the Cable around the Pulley which is nearer to the Cable Drive Gear.
Page 157 3. Unhook the spring and remove the length of the cable on the right (looking at the copier from the rear). 1139D129AA 4. Move the 2nd/3rd Mirrors Carriage toward the Scanner Drive Gear so that the cable slacks off and then remove the length of the cable on the left (looking at the copier from the rear).
Page 158 (15/18 cpm copier) • Remove the Original Cover, Original Scales, and Original Glass. • Remove the Middle Right, Upper Right, Right, Upper Left, and Upper Rear Covers. • Remove the Left and Right Hinge Covers, Rear Upper Cover (Small), and Rear Upper Cover.
Page 159 (4) Winding of the Scanner Drive Cable (23 cpm copier) Remark Whenever the Scanner Drive Cable has been rewound, be sure to make the “Adjustment of the Scanner/Mirrors Carriage Position.” See p. D-69. Pulley B Pulley A Scanner Drive Gear Pulley C 1149D047AB 1.
Page 160 3. Fit the belt in position and secure Scanner Motor M4 (three screws). 1149D040AA 4. Hook the length of cable on the left (looking at the copier from the rear), around Pulleys C and B and secure it to the frame. 1149D041AB 5.
Page 161 8. Fit the ADF fixing bracket (one screw). 9. Mount M2 (two screws). 1149D044AA (15/18 cpm copier) Remark Whenever the Scanner Drive Cable has been rewound, be sure to make the “Adjustment of the Scanner/Mirrors Carriage Position.” See p. D-69. Pulley B Pulley A Scanner Drive Gear...
Page 162 3. Wind the longer length of the Cable 5-3/4 turns counterclockwise around the Pulley, working from the front to back side. Then, slip the Cable Holding Jig onto the Pulley. 1139D136AA 4. Fit the Scanner Drive Gear onto the Scanner Motor Mounting Bracket using one E-ring.
Page 163: Cleaning Of The Exposure Lamp
8. Wind the shorter length of the Cable around Pul- leys A and B. NOTE Wind the shorter length of the Cable around the upper groove in Pulley B (two grooves). 1139D141AA 9. Fit the Cable into the groove in the Wire Guide and hook the spring.
Page 164: Cleaning Of The 1St/2Nd/3Rd Mirrors
(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.
Page 165: Imaging Unit
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.
Page 166 6. Tilt the Developing Unit to remove the developer. 1139D154AA Replacement of the Cleaning Blade 7. Remove two screws and the Lid. 1139D164AA 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.
Page 167 Cleaning of the PC Drum Paper Separator Fingers 10. Using a soft cloth dampened with alcohol, wipe clean the Paper Separator Fingers. NOTE Clean the Paper Separator Fingers carefully as its tip is easy to bend. 1174D002AA Cleaning of the Ds Positioning Collars 11.
Page 168 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).
Page 169: Cleaning Of The Main Erase Lamp
(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. 1139D166AA 4. Remove the Imaging Unit. 5. Pull out the Toner Bottle Holder to the front. 6.
Page 170 3. Go to the rear of the copier and unplug the connec- tor of Image Erase Lamp. 1151D036AA 4. Remove the Imaging Unit. 5. Remove one screw and the Image Erase Lamp. NOTE When removing the Erase Lamp, use care not to lose the pressure spring in the rear.
Page 171: Pc Drum Charge Corona/Image Transfer Corona Unit
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.
Page 172: Cleaning Of The Pc Drum Charge Corona Grid Mesh
(2) Cleaning of the PC Drum Charge Corona Grid Mesh 1. Blow all foreign matter off the Grid with a blower brush. NOTE If the blower brush is not effective in cleaning the Grid, use a soft cloth dampened with alcohol to clean seri- ous contamination.
Page 173: Cleaning Of The Image Transfer/Paper Separator Coronas Housing
(5) Cleaning of the Image Transfer/Paper Separator Coronas Housing 1. Remove the four Paper Guides. 2. Remove the two End Caps. 3. Remove the Image Transfer and Paper Separator Corona Wires. NOTE When removing the Wire, unhook the spring end first and use care to prevent break and deformation.
Page 174: Fusing Unit
2-8. FUSING UNIT (1) Removal of the Fusing Unit 1. Remove one screw and the Ground Wire of the Fusing Unit. 1151D038AA 2. Unplug the Fusing Heater Lamp connector and remove the wires from the clamp. 1151D007AA 3. Unplug the Fusing Thermistor connector and remove the wires from the two clamps.
Page 175: Cleaning Of The Pre-Fusing Guide Plate
(2) Cleaning of the Pre-Fusing Guide Plate 1. Using a soft cloth dampened with alcohol, wipe clean the Guide Plate. 1139D190AA (3) Removal of the Upper Fusing Roller 1. Remove two screws and the Fusing Unit Front Cover. 2. Remove two screws and the Fusing Unit Upper Cover.
Page 176 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). 1151D014AA 10. Slide out the Fusing Heater Lamp. 1139D196AA 11. Remove two C-clips. 12. Remove one spur gear. 13.
Page 177: Cleaning Of The Upper Fusing Roller
(4) Cleaning of the Upper Fusing Roller 1. Using a soft cloth dampened with alcohol or sili- cone oil, wipe clean the Upper Fusing Roller. 1139D198AA (5) Cleaning of the Upper Paper Separator Fingers 1. Using a soft cloth dampened with alcohol or sili- cone oil, wipe clean the Upper Separator Fingers.
Page 178: Cleaning Of The Lower Fusing Roller
2. Remove the Lower Fusing Roller. 1139D202AA (8) Cleaning of the Lower Fusing Roller 1. Using a soft cloth dampened with alcohol or sili- cone oil, wipe clean the Lower Fusing Roller. 1139D203AA (9) Cleaning of the Lower Paper Separator Fingers 1.
Page 179: Disassembly Of The Exit/Duplex Switching Unit (Option
(10) Disassembly of the Exit/Duplex Switching Unit (Option) 1. Remove two screws and the Upper Guide Plate. 1139D205AA 2. Remove two screws and the Exit/Duplex Switching Unit. 3. Unplug one connector. 1139D206AA 4. Remove two screws and the Cover. 1139D207AA 5.
Page 180 6. Unplug the solenoid connector. 7. Remove the harness from the Solenoid Unit clamps at two places. 1139D209AA 8. Remove one screw and the Solenoid Unit. 1139D210AA NOTE Make the adjustment If the solenoid has been removed from the Solenoid with the Lever in contact Unit, make the adjustment shown on the left with the with the metal plate.
Page 181 11. Snap off two E-rings to remove the Exit/Duplex Switching Plate. 1139D214AA 12. Remove one screw and the Photoswitch Mounting Bracket. 13. Remove two screws and the Exit Rolls Mounting Bracket Unit. 1139D215AA NOTE When reinstalling the Exit Rolls Mounting Bracket Unit, make sure that the Reinforcement Plate Unit is in con- tact with the Exit Rolls Mounting Bracket Unit as shown on the left.
Page 182 NOTE When reinstalling the Reinforcement Plate Unit, make sure that the Unit is in contact with the frame at the front and rear sides of the copier as shown on the left. 1139D219AA D-48...
Page 183: Adjustment
ADJUSTMENT 3-1. JIGS AND TOOLS USED Important • When adjusting the positions of the Scanner and Mirrors Carriage, use Jigs numbered • When adjusting the gap between the Doctor Blade and Sleeve Roller, use Jigs numbered Front Door Interlock Cable Holding jig Switch Actuating Jig 1139D071AA 1174D009AA...
Page 184: Adjustment Requirements List
3-2. ADJUSTMENT REQUIREMENTS LIST Ref. Adjustment Item Requirements Adjusting Point Page Max. Exposure Lamp 100 to 127V areas: 81 ± 1 V Control panel D-52 Voltage 200 to 240V areas: 162 ± 2 V Optimum Exposure Kodak Gray Scale: Control panel Setting in the Manual no image of the 1st step, D-55...
Page 185: Adjustment Of Switches
3-3. ADJUSTMENT OF SWITCHES (1) Adjustment of Front Door Interlock Switch S21 1. Open the Front Door. 2. Loosen two screws that secure the Front Door Interlock Switch Actuating Plate to the Front Door. 1174M023AA 3. Move the Switch Actuating Plate back and forth to meet the requirements below.
Page 186: Electrical/Image Adjustments
3-4. ELECTRICAL/IMAGE ADJUSTMENTS (1) Adjustment of the Maximum Exposure Lamp Voltage for the Manual Mode Requirement • Maximum Exposure Lamp voltage: 81 ± 1V (RMS value) Important • After the maximum Exposure Lamp voltage has been adjusted, be sure to make the fol- lowing adjustments: Optimum Exposure Setting in the Manual Mode and Optimum Expo- sure Setting in the Auto Mode.
Page 187 When using the testers, voltmeters, or multimeters which show only the mean value, not Rms values, carry out the following procedure. 1. Measure the line voltage. 2. Referring to the Mean Value Chart corresponding to each voltage area, see the figure under the voltage obtained in step 1.
Page 188 MEAN VALUE CHART FOR 200/220/240V AREAS MEAN 162.0 135.9 135.2 134.5 133.8 133.2 132.6 131.9 131.4 130.8 130.2 VALUE MEAN 162.0 129.7 129.1 128.6 128.1 127.6 127.1 126.6 126.1 125.7 125.2 VALUE MEAN 162.0 124.7 124.2 123.9 123.5 123.1 122.7 122.2 121.9 121.5 121.1 VALUE MEAN 162.0...
Page 189: Adjustment Of The Optimum Exposure Setting In The Manual Mode
(2) Adjustment of the Optimum Exposure Setting in the Manual Mode Requirement • 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.
Page 190: Adjustment Of The Optimum Exposure Setting In The Auto Mode
(3) Adjustment of the Optimum Exposure Setting in the Auto Mode Important • 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.
Page 191: Adjustment Of The Atdc Sensor
(4) Adjustment of the ATDC Sensor Important • 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.) • The adjustment must be made whenever the currently used Imaging Unit has been charged with new starter.
Page 192: Adjustment Of The Aperture Blades
(5) Adjustment of the Aperture Blades Requirement • There should be no dark or light bands running in the feeding direction on copies pro- duced. (Adjust to obtain the mean image density for all areas.) Important • If dark and light bands running in the feeding direction occur on copies, make this adjust- ment after checking the following.
Page 193: Adjustment Of The Multi Bypass Table Reference Position
(6) Adjustment of the Multi Bypass Table Reference Position Requirement • 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. •...
Page 194: Adjustment Of The 1St/2Nd (23 Cpm Copier Only) Drawer Reference Position
(7) Adjustment of the 1st/2nd (23 cpm copier only) Drawer Reference Position Requirement • 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.
Page 195: Adjustment Of The Paper Lifting Plate Springs (2Nd Drawer): 23 Cpm Copier Only
(8) Adjustment of the Paper Lifting Plate Springs (2nd Drawer): 23 cpm copier only Important • When the paper size loaded in the 2nd Drawer has been changed, be sure to replace the Springs by referring to the Table given below. (For replacement of the Springs, see p. D- 13.) •...
Page 196: Adjustment Of The Leading Edge Registration
(9) Adjustment of the Leading Edge Registration Full Size Requirement • 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 refer- ence line.
Page 197 4. Press 10-keys “4” and press the Start Key. (Then, the Magnification Ratio Indicator shows “A4” and the Multi-Copy Display, the current setting value.) 1139D034CA 5. Press the Clear Key to clear the current setting value. 6. With the old setting value used as reference, enter the new setting value using the appropriate 10- keys.
Page 198 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.”) 1139D037AA...
Page 199 Reduction 1. After the leading edge registration in an enlarge- ment mode has been adjusted, make two single copies in a reduction mode (50%) and check for leading edge registration on the second copy. 1139D042AA 2. If the registration does not meet the requirement, go to the control panel and press the Meter Count Key, stop Key, 10-keys “0”, 10-keys “0”, stop Key, 10-keys “0”, 10-keys “1”, Stop Key, Start Key to set...
Page 200: Adjustment Of The Image Leading Edge Erase Width
(10) Adjustment of the Image Leading Edge Erase Width Requirement • 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.
Page 201 5. Press the Clear Key to clear the current setting value. 6. With the old setting value used as reference, enter the new setting value using the appropriate 10- keys. NOTE If the erase width on the copy is less than 0.5 mm, 1139D047CA increase the setting value.
Page 202: Adjustment Of The Image Erase Lamp Position
(11) Adjustment of the Image Erase Lamp Position Requirement • Image erase width: Within 1 ± 0.5 mm Important • This adjustment must be made after the reference positions of the Multi Bypass Table and 1st and 2nd (23 cpm copier only) Drawers have been adjusted. 1.
Page 203: Other Adjustments
3-5. OTHER ADJUSTMENTS (1) Adjustment of the Scanner/Mirrors Carriage Position Requirement • 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 Car- riage Positioning Jig. 1.
Page 204: Adjustment Of The Gap Between The Doctor Blade And Sleeve Roller
(2) Adjustment of the Gap Between the Doctor Blade and Sleeve Roller Requirement • The gap between the Doctor Blade and the Sleeve Roller should be 0.35 mm ± 0.05 mm. Important • Cover the PC Drum with the Drum Cloth to prevent it from being scratched. 1.
Page 205: Adjustment Of The Original Size Detecting Board
(3) Adjustment of the Original Size Detecting Board Important • This adjustment must be made after the Original Size Detecting Board has been replaced. 1. Lower the Original Cover with no paper on the Original Glass. 1139D228AA 2. On the control panel, press the Meter Count Key, stop Key, 10-keys “0”, 10-keys “0”, stop Key, 10- keys “0”, 10-keys “1”, 10-keys “1”...
Page 206: Miscellaneous
MISCELLANEOUS 4-1. INSTALLATION OF THE PLUG-IN COUNTER MOUNTING BRACKET (OPTION) 1. Remove the Middle Right Cover. 1139D001AA 2. Remove the Counter Cover. 3. Remove the Upper Right Cover. 4. Remove the Right Cover. 1139D061AA 5. Connect the Plug-In Counter Connector. 1139D063AA 6.
Page 207 EP1054/EP1085/EP2030 TROUBLESHOOTING 10794...
Page 208 CONTENTS Only when options are used 1. INTRODUCTION ..................... T-1 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 ................... T-2 2-1. Controlled Parts Check Procedure ............T-2 2-2.
Page 209 C0994: Main Tray Elevator M26's Failure to Turn ......T-51 (10) C0998: Shifter Transfer Failure C0999: Shifter Return Failure C099A: Shifter Return Failure C099b: Shifter Transfer Failure C099c: Shifter Motor M27's Failure to Turn ........T-53 (11) C099E: Shift Gate Position Detecting Failure C099F: Shift Gate Position Detecting Failure C0996: 3rd Drawer Lock Release Failure C0F79: Paper Empty Sensor Failure ..........
Page 210: Introduction
INTRODUCTION 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.
Page 211: I/O Port Check
I/O PORT CHECK 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: checking of the data of the I/ O port on the board IC with the copier in the standby state (including a misfeed, malfunc- tion, and closure failure condition) allows the Tech.
Page 212: Port Check List
2-2. Port Check List Copier 1st Drawer paper take-up LED on the Monitor Display lights up. Operation Characteristics Port Magnification Multi-Copy Manual Exposure CN/PJ Symbol Name Ratio Indicator Display Indicator PC Drive Motor PJ11A-12A ↑ PC Drive Motor lock signal When locked When turned PJ11A-11A ↑...
Page 219 AD-11/PF-6D The Duplex Unit LED on the Monitor Display lights up. Operation Characteristics Port Magnification Multi-Copy Manual Exposure CN/PJ Symbol Name Ratio Indicator Display Indicator Duplex Unit Drive Motor PJ6G-2 ↑ Duplex Unit Drive Motor lock signal When locked When turned PJ6G-1 ↑...
Page 220: Paper Transport Failure
PAPER TRANSPORT FAILURE 3-1. 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 par- ticular location in the copier.
Page 221 The paper misfeed, including a sheet of paper that is likely to be present, in the copier as well as in the paper feeder options is detected by the following sensors. When options are installed Paper Leading Edge Detecting Sensor PC54 Transport Roller Sensor PC51 1st Paper Exit...
Page 222: Misfeed Detected Types And Detection Timings
3-2. Misfeed Detected Types and Detection Timings • The following table lists the types of misfeed detection classified by the misfeed locations and their corresponding detection timings. Note For the misfeed detection types and detection timings in the options, see the Service Man- ual for the options.
Page 223 <Fusing/Exit Misfeed> Type Detection Timing Leading edge detection PC53 is not unblocked (H) after the lapse of approx. 4.5 sec- by 1st Paper Exit Sensor onds after the TRON signal has been input. PC53 Trailing edge detection PC53 is not blocked (L) after the lapse of approx. 3.7 seconds by PC53 after PC54 has been unblocked (H).
Page 224: Misfeed Clearing Procedures
3-3. Misfeed Clearing Procedures Copier Take-Up Misfeed Symbol Name PC51 Transport Roller Sensor PC55 1st Drawer Paper Take-Up Sensor PC56 2nd Drawer Paper Take-Up Sensor (23 cpm Copier) 1st Drawer Paper Take-Up Solenoid 2nd Drawer Paper Take-Up Solenoid (23 cpm Copier) Paper Transport Clutch PWB-A Master Board...
Page 225 Copier Take-Up Misfeed Clearing Procedure Symptom Step Check Item Result Action • Paper is not Does the paper being used Instruct the user to use the taken up at all. meet product specifica- paper that meets product tions? specifications. • Paper is station- Is the paper curled, waved, Change the paper.
Page 226 Symptom Step Check Item Result Action • Paper is station- Check 1st/2nd Drawer YES Replace PWB-A. ary before the Paper Take-Up Sensor Check the Actuator for Vertical Trans- (PC55/PC56). See p.T-2. operation. port Roller. PC55: PWB-A (IC4A) APA1 Check the Paper Take-Up PC56: PWB-A (IC5A) PA5 Sensor.
Page 227: Take-Up Misfeed (23 Cpm Copier
(2) PF-206 Take-Up Misfeed (23 cpm Copier) Symbol Name PC21 3rd Drawer Paper Take-Up Sensor PC22 Vertical Transport Sensor 4 PC29 4th Drawer Paper Take-Up Sensor Vertical Transport Motor 3rd Drawer Paper Take-Up Motor 4th Drawer Paper Take-Up Motor PWB-A 23 cpm Copier Master Board PWB-A PF-206 Master Board...
Page 228 Paper Feed Cabinet Take-Up Misfeed Clearing Procedure Symptom Step Check Item Result Action • Paper is not Does the paper being used Instruct the user to use the taken up at all. meet product specifica- paper that meets product tions? specifications.
Page 229: Take-Up Misfeed (23 Cpm Copier
(3) PF-112 Take-Up Misfeed (23 cpm Copier) Symbol Name PC21 3rd Drawer Paper Take-Up Sensor PC22 Vertical Transport Sensor 4 Vertical Transport Motor 3rd Drawer Paper Take-Up Motor PWB-A 23 cpm Copier Master Board PWB-A PF-112 Master Board 1174C03TAA T-20...
Page 230 Paper Feed Cabinet Take-Up Misfeed Clearing Procedure Symptom Step Check Item Result Action • Paper is not Does the paper being used Instruct the user to use the taken up at all. meet product specifica- paper that meets product tions? specifications.
Page 231: Bypass Port Misfeed
(4) Bypass Port Misfeed Symbol Name PC31 Manual Feed Paper Empty Sensor PC54 Paper Leading Edge Detecting Sensor SL51 Manual Feed Paper Take-Up Solenoid Paper Transport Clutch CL51 Manual Feed Paper Take-Up Clutch PWB-A Master Board 1174C24TAB T-22...
Page 232 Bypass Port Misfeed Clearing Procedure Symptom Step Check Item Result Action • Paper is not Check Manual Feed Paper YES Replace PWB-A. detected. Empty Sensor PC31. See Check the operation of the p. T-2 (PWB-A (IC4A) APC actuator of PC31. If it oper- ates properly, replace PC31.
Page 233: Transport/Separator Misfeed
(5) Transport/Separator Misfeed Symbol Name PC51 Transport Roller Sensor PC54 Paper Leading Edge Detecting Sensor Synchronizing Roller Clutch Suction Fan Motor PWB-A Master Board 1174C05TAA T-24...
Page 234 Transport/Separator Misfeed Clearing Procedure Symptom Step Check Item Result Action • Paper is station- Is the paper curled, waved, Change the paper. ary before the or damp? Instruct the user in how to Synchronizing store the paper. Roller. Check Paper Leading Edge YES Replace PWB-A.
Page 235: Fusing/Exit Misfeed
(6) Fusing/Exit Misfeed Symbol Name PC53 1st Paper Exit Sensor PC30 2nd Paper Exit Sensor PC54 Paper Leading Edge Detecting Sensor Suction Fan Motor PWB-A Master Board 1174C06TAA T-26...
Page 236 Fusing/Exit Misfeed Clearing Procedure Symptom Step Check Item Result Action • Paper is station- Is the paper curled, waved, Change the paper. ary before the or damp? Instruct the user in how to Fusing Roller. store the paper. Is the Guide Plate dirty with Clean the Guide Plate.
Page 237: Duplex Unit Vertical Transport/Storage Misfeed (23 Cpm Copier
(7) Duplex Unit Vertical Transport/Storage Misfeed (23 cpm Copier) Symbol Name PC12 Duplex Vertical Transport Sensor PC13 Duplex Unit Turnover Path Sensor PC14 Duplex Unit Trailing Sensor PC15 Duplex Unit Paper Empty Sensor PC53 1st Paper Exit Sensor SL31 Duplex Unit Gate Switching Solenoid SL61 Turnover/Exit Switching Solenoid Duplex Unit Drive Motor...
Page 238 Duplex Unit Vertical Transport Misfeed Clearing Procedure Symptom Step Check Item Result Action • Paper is station- Is the paper curled, waved, Change the paper. ary near the Exit or damp? Instruct the user in how to Section. store the paper. Does the voltage across Adjust the stroke of the PJ12A-5 on PWB-A and...
Page 239 Symptom Step Check Item Result Action • The leading Is the Paper Guide Mylar YES Clean or replace the Mylar. edge of the deformed or dirty? Check the Mylar moving paper is mechanism. stationary inside Does the Gate Switching Adjust the stroke of the the Duplex Unit.
Page 240: Duplex Unit Take-Up Misfeed (23 Cpm Copier
(8) Duplex Unit Take-Up Misfeed (23 cpm Copier) Symbol Name PC16 Duplex Unit Paper Take-Up Sensor PC17 Vertical Transport Sensor 3 SL33 Duplex Unit Pick-Up Solenoid CL31 Duplex Unit Paper Take-Up Clutch Vertical Transport Motor PWB-A Master Board of PF-206/PF-112/PF-6D PWB-G Duplex Unit Master Board 1174C08TAA...
Page 241 Duplex Unit Take-Up Misfeed Clearing Procedure Symptom Step Check Item Result Action • Paper is not Is the paper curled, waved, Change the paper. taken up at all. or damp? Instruct the user in how to store the paper. Is Duplex Unit Pick-Up Solenoid Adjust the stroke of the SL33 energized when paper Solenoid or check the pick-...
Page 242: Malfunctions
MALFUNCTIONS 4-1. 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.
Page 243 Copier/Paper Feed Cabinet (Option) Code Description Detection Timing C0400 Exposure Lamp's failure The output from AE Sensor Board PWB-H does not to turn ON become 4.3V or less for the period between when LA1 turns ON and the Scanner starts a scan motion and when the Scanner reaches the Image Leading Edge position.
Page 244 Malfunctions Detected by Copiers, Except in Europe Code Description Detection Timing • Either UN2 is faulty or a communication error C0F02 Original size detection error (Defective CPU) occurs with PWB-A. • Under normal conditions: The fixed-cycle pulse signal (Busy) remains HIGH or LOW for 3 seconds or more.
Page 245 Code Description Detection Timing C0900 3rd Drawer Paper Lift- Up Sensor malfunction C0904 3rd Drawer Paper Lift- Up Motor malfunction See the PF-206 Service Manual. C0950 4th Drawer Paper Lift- Up Sensor malfunction C0954 4th Drawer Paper Lift- Up Motor malfunction C0d00 Duplex Unit Front/Rear Edge Guide Plates...
Page 246 Code Description Detection Timing C0990 Main Tray upward motion failure C0991 Main Tray downward motion failure C0992 Main Tray downward motion failure C0993 Main Tray upward motion failure C0994 Main Tray Elevator Motor's failure to turn C0996 3rd Drawer lock release failure C0998 Shifter transfer failure...
Page 247 Malfunctions for Other Options Code Description Detection Timing C0b10 Faulty Paper Clamp Unit movement C0b11 Faulty Paper Clamp Unit movement C0b30 Paper Aligning Motor malfunction (Paper Aligning Bar remaining at home position) C0b31 Paper Aligning Motor malfunction (Paper Aligning Bar not at home position) C0b50 Improper stapling action...
Page 248 4-2. Troubleshooting Procedures (1) C0000: Main Drive Motor's failure to turn C0001: Main Drive Motor turning at abnormal timing Symbol Name Main Drive Motor PWB-A Master Board 1174C25TAA Step Check Item Result Action Is C0001 being shown? Begin with step 5. Does M2 start to turn when the Check rolls/rollers and gears for Start Key is pressed?
Page 249: C0010: Pc Drive Motor's Failure To Turn C0011: Pc Drive Motor Turning At Abnormal Timing
(2) C0010: PC Drive Motor's failure to turn C0011: PC Drive Motor turning at abnormal timing Symbol Name PC Drive Motor PWB-A Master Board 1174C26TAA Step Check Item Result Action Is C0011 being shown? Begin with step 5. Does M1 start to turn when the Start Check gears for possible overload.
Page 250: C004C: Cooling Fan Motor's Failure To Turn
(3) C004C: Cooling Fan Motor's failure to turn Symbol Name Cooling Fan Motor PWB-A Master Board 1174C27TAA C004C Step Check Item Result Action Does the voltage across PJ20A-1 Replace M9. on PWB-A and GND change from Replace PWB-A. DC24V to DC12V when the Power is switched ON? T-41...
Page 251: C0070: Toner Replenishing Motor's Failure To Turn C0071: Toner Replenishing Motor Turning At Abnormal Timing
(4) C0070: Toner Replenishing Motor's failure to turn C0071: Toner Replenishing Motor turning at abnormal timing Symbol Name PC112 Toner Hopper Home Position Sensor Toner Replenishing Motor PWB-A Master Board 1174C28TAA Step Check Item Result Action Is C0071 being shown? Begin with step 3.
Page 252: C0400: Exposure Lamp's Failure To Turn On C0410: Exposure Lamp Turning On At Abnormal Timing
(5) C0400: Exposure Lamp's failure to turn ON C0410: Exposure Lamp turning ON at abnormal timing Symbol Name Exposure Lamp Exposure Lamp Thermal Fuse PWB-A Master Board PWB-H AE Sensor Board Exposure Lamp Regulator 1174C13TAC T-43...
Page 253 C0400 Step Check Item Result Action Does LA1 light up when the Start Check the photo receiver of the AE Key is pressed? Sensor for contamination. Replace PWB-H or PWB-A. Does the voltage across PJ14A-3 Replace PWB-A. on PWB-A and GND become DC4.3V or less when LA1 turns Disconnect CN7 (2P).
Page 254: C0500: Warm-Up Failure C0510: Abnormally Low Fusing Temperature C0520: Abnormally High Fusing Temperature
(6) C0500: Warm-up failure C0510: Abnormally low fusing temperature C0520: Abnormally high fusing temperature Symbol Name Fusing Heater Lamp Fusing Thermoswitch Fusing Thermistor PWB-A Master Board SSR1 Fusing Heater Lamp SSR 1174C14TAA T-45...
Page 255 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 Does H1 light up when the Power Check TH1 for installation or clean Switch is turned ON? Begin with step 3.
Page 256: C0600: Scanner Motor Malfunction C0610: Lens Motor Malfunction C0620: Mirror Motor Malfunction
(7) C0600: Scanner Motor malfunction C0610: Lens Motor malfunction C0620: Mirror Motor malfunction Symbol Name Scanner Motor Lens Motor Mirror Motor PC81 Scanner Reference Position Sensor PC86 Mirror Reference Position Sensor PC90 Lens Reference Position Sensor PWB-A Main Control Board PWB-F 23 cpm Copier Motor Drive Board PWB-E...
Page 257 C0600 Step Check Item Result Action Are all connectors on Motor Drive Plug them in securely. Board plugged in securely? Check Scanner Reference Position Check the Scanner Drive Cable for Sensor PC81. tension and overload. Or, replace See p. T-2 (PWB-A (IC4A) APB0) PWB-A.
Page 258: C0904: 3Rd Drawer Paper Lift-Up Motor Malfunction
(8) C0900: 3rd Drawer Paper Lift-Up Sensor malfunction C0904: 3rd Drawer Paper Lift-Up Motor malfunction C0950: 4th Drawer Paper Lift-Up Sensor malfunction C0954: 4th Drawer Paper Lift-Up Motor malfunction Symbol Name PC19 3rd Drawer Paper Lift-Up Sensor PC23 4th Drawer Paper Lift-Up Sensor PC27 3rd Drawer Paper Lift-Up Motor Pulse Sensor...
Page 259 C0900, C0950 Step Check Item Result Action Is C0950 being shown? Perform step 3. Check 3rd Drawer Paper Lift-Up Replace PF-206 PWB-A. Sensor PC19. Check the Paper Pressure Releas- See p. T-2 (PF-206) PWB-A IC1A ing mechanism and PC19. PG3. Check 4th Drawer Paper Lift-Up Replace PF-206 PWB-A.
Page 260: C0991: Main Tray Downward Motion Failure
(9) C0990: Main Tray Upward Motion Failure C0991: Main Tray Downward Motion Failure C0992: Main Tray Downward Motion Failure C0993: Main Tray Upward Motion Failure C0994: Main Tray Elevator M26's Failure to Turn Symbol Name Main Tray Lower Position Sensor Elevator Motor Pulse Sensor PC19 3rd Drawer Paper Lift-Up Sensor...
Page 261 C0990, C0991 Step Check Item Result Action Check 3rd Drawer Paper Lift-Up Replace PF-112 PWB-A. Sensor PC19. Check the Paper Pressure Releas- See p. T-2 (PF-112) PWB-A IC1A ing mechanism and PC19. PG3. C0992, C0993 Step Check Item Result Action Check Lower Position Sensor Replace PF-112 PWB-A.
Page 262: C0999: Shifter Return Failure
(10) C0998: Shifter Transfer Failure C0999: Shifter Return Failure C099A: Shifter Return Failure C099b: Shifter Transfer Failure C099c: Shifter Motor M27's Failure to Turn Symbol Name Shifter Home Position Sensor Shifter Return Position Sensor Shift Motor Pulse Sensor Paper Shift Motor PWB-H Cabinet Transport Board PWB-A...
Page 263 C0998, C0999 Step Check Item Result Action Check Shifter Return Position Sen- Replace PF-112 PWB-A. sor PC4. See p. T-2 Check PWB-H, flat cable and PC4. (PF-112) PWB-A IC2A PD1. C099A, C099b Step Check Item Result Action Check Shifter Home Position Sen- Replace PF-112 PWB-A.
Page 264: C099E: Shift Gate Position Detecting Failure C099F: Shift Gate Position Detecting Failure C0996: 3Rd Drawer Lock Release Failure C0F79: Paper Empty Sensor Failure
(11) C099E: Shift Gate Position Detecting Failure C099F: Shift Gate Position Detecting Failure C0996: 3rd Drawer Lock Release Failure C0F79: Paper Empty Sensor Failure Symbol Name Shift Tray Paper Empty Sensor 3rd Drawer Set Sensor PC20 3rd Drawer Paper Empty Sensor PC34 Shift Gate Position Detecting Sensor SL41...
Page 265 C099E, C099F Step Check Item Result Action Check Shift Gate Position Detecting Replace PF-112 PWB-A. Sensor PC34. Check PWB-H, flat cable and See p. T-2 PC34. (PF-112) PWB-A IC1A PC1. C0996 Step Check Item Result Action Does the voltage across PJ6A-2 on Replace SL41.
Page 266: Detection Failure
(12) C0d00: Duplex Unit Front/Rear Edge Guide Plates home position detection failure C0d20: Duplex Unit Trailing Gate Unit home position detection failure C0d50: Duplex Unit Drive Motor's failure to turn C0d51: Duplex Unit Drive Motor turning at abnormal timing Symbol Name Duplex Gate Home Position Sensor Front/Rear Edge Guide Plate Home...
Page 267 C0d00, C0d20 Step Check Item Result Action Is C0d20 being shown? Perform step 4. Does Front/Rear Edge Guide Drive Check for possible overload. Motor M33 start turning when the Replace PWB-G, PWB-A of PF- Power Switch is turned ON or the 206/PF-112/PF-6D, or M33.
Page 268: C0F10: Faulty Ae Sensor Level C0F30: Atdc Sensor Malfunction
(13) C0F10: Faulty AE Sensor level C0F30: ATDC Sensor malfunction Symbol Name PWB-A Master Board PWB-H AE Sensor Board ATDC Sensor 1174C20TAA C0F10 Step Check Item Result Action Is the voltage across PJ9A-3 on PWB-A Replace PWB-A. and GND in the range between DC2V Check the photo receiver of the AE and DC4V when the Start Key is Sensor for contamination or replace...
Page 269: C0F02: Original Size Detection Error (Defective Cpu) C0Fe2 To C0Ffe: Original Size Detecting Sensor Failure
(14) C0F02: Original size detection error (Defective CPU) C0FE2 to C0FFE: Original Size Detecting Sensor failure Symbol Name PC113 Original Size Detecting Sensor FD2 PC114 Original Size Detecting Sensor CD1 PC115 Original Size Detecting Sensor FD3 PC116 Original Size Detecting Sensor CD2 Original Size Detecting Board PWB-A Master Board...
Page 270: Power Is Not Turned On
(15) Power is not Turned ON Symbol Name PWB-A Master Board PWB-C Power Supply Board Exposure Lamp Regulator Power Supply Unit Power Switch Front Door Interlock Switch 1174C33TAB T-61...
Page 271 Symptom Step Check Item Result Action Power is not Is the source voltage being Check Fuse or line voltage. supplied to the supplied to the circuit copier at all. across PJ1-1 and 2 of PU2? Is the voltage across PJ2-2 Check Fuse of PU2 or of PU2 and GND, and replace PU2.
Page 272: E1, E2
(16) E1, E2 Symbol Name ATDC Sensor I/U Fuse PWB-A Master Board 1174C23TAB Code Step Check Item Result Action Is the seal peeled off the open- Peel off the seal and turn the ing or starter been fully Power Switch OFF, then ON. charged? Is the voltage across PJ10A-3 Replace PWB-A.
Page 273: Image Failures
IMAGE FAILURES 5-1. Image Failure Troubleshooting Image failures have many possible causes. For troubleshooting, it is necessary to deter- mine whether a failure is attributable to a basic cause or any other cause. In this chapter, troubleshooting is divided into “initial checks” and “troubleshooting proce- dures classified by image failure”.
Page 274: Troubleshooting Procedures Classified By Image Failures
5-3. Troubleshooting Procedures Classified by Image Failures <Image Failure Samples> 1. Blank copy 2. Black copy 3. Low image density 4. Foggy background 5. Black streaks or bands 6. Black spots 7. Blank streaks or bands 8. Void areas 9. Smear on back 1149T012AA T-65...
Page 275: Blank Copy
(1) Blank copy Cause Step Check Item Result Action Charging failure Is the PC Drum Charge Install correctly. Corona installed correctly? Are the PC Drum Charge Check and replace if nec- Corona wire and grid mesh essary. normal? Is the wiring between High YES Replace HV1.
Page 276: Low Image Density
(3) Low Image Density Cause Step Check Item Result Action PC Drum life Does the PC Drum have Replace the PC Drum. enough service life? Do the fan motors turn Troubleshoot the fan properly? (Ozone deteriora- motors. tion, temperature rise) PC Drum ground- Is the PC Drum properly Clean or replace the PC...
Page 277: Foggy Background
(4) Foggy background Cause Step Check Item Result Action Cleaning failure Is the Cleaning Blade dirty Change the Cleaning with foreign matter, paper Blade. dust, etc. or is it scratched? Optical failure Is the mirror or lens dirty? YES Clean the mirror or lens. PC Drum failure Is the PC Drum dirty with Clean or replace the PC...
Page 278: Black Streaks Or Bands
(5) Black Streaks or Bands Cause Step Check Item Result Action Uneven charging Are the PC Drum Charge Clean or replace the PC Corona wire and grid mesh Drum Charge Corona. dirty? Check the operation of the toner charging mechanism. Cleaning failure Is the Cleaning Blade dirty Replace the Cleaning...
Page 279: Blank Streaks Or Bands
(7) Blank Streaks or Bands Cause Step Check Item Result Action Plugged Db Is the Db plugged with for- Remove foreign matter. If eign matter, caked toner, the problem persists, etc.? replace the developer. Drum charge fail- Are the PC Drum Charge Clean or replace the PC Corona wire and grid mesh Drum Charge Corona.
Page 280: Void Areas
(8) Void Areas Cause Step Check Item Result Action Image transfer fail- Is the Image Transfer Reinstall. Corona installed correctly? Is the Image Transfer Clean or replace the Image Corona wire dirty? Transfer Corona wire. Damp copy paper Is the image improved by Change the copy paper and loading new paper? instruct the user in how to...

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Ep1085 Ep2030

Minolta EP1054 General Instructions Manual

Section 1

1 Specifications

2 Precautions for Installation

3 Precautions for Use

4 Handling of the Consumables

5 System Options

Section 2

1 Cross-Sectional View

2 Copy Process

3 Drive System

4 Sequential Explanation

5 Imaging Unit

6 Pc Drum

7 Drum Charging

8 Image Erase Lamp

9 Optical Section

10 ORIGINAL SIZE DETECTING SENSORS (23 Cpm COPIER ONLY

11 Development

12 Toner Hopper

13 PAPER TAKE-UP/FEED SECTION (2ND DRAWER: 23 Cpm COPIER ONLY

14 Multi Bypass Table

15 Synchronizing Rollers

16 Image Transfer and Paper Separation

17 Main Erase Lamp

18 Paper Separator Fingers

19 Cleaning Unit

20 Paper Transport

21 Fusing Unit

22 Exit Unit

23 Exit/Duplex Switching Unit (Option

24 Dehumidifying Switch (Option

25 Cooling Fan

26 Optical Section Cooling Fan

27 Memory Backup

Switches on Pwbs/ Tech. Rep. Settings

1 PRECAUTIONS for HANDLING the Pwbs

2 Control Panel Keys and Indicators

3 FUNCTIONS of SWITCHES and OTHER PARTS on Pwbs

4 User Mode

5 Service Mode

6 Adjust Mode

7 Function Setting Requirements at Replacement of Parts

Dis/Reassembly, Adjustment

1 Service Instructions

2 Disassembly/Reassembly

3 Adjustment

4 Miscellaneous

Troubleshooting

1 Introduction

2 I/O Port Check

3 Paper Transport Failure

4 Malfunctions

5 Image Failures

Quick Links

Chapters

Troubleshooting

Need help?

Questions and answers

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Summary of Contents for Minolta EP1054