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P1054/EP1085/EP2030

GENERAL

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EP1054/1085/2030 Service Manual

1 SPECIFICATIONS

1-1. Specifications of EP2030

1-2. Specifications of EP1085

1-3. Specifications of EP1054

2 PRECAUTIONS FOR INSTALLATION

3 PRECAUTIONS FOR USE

4 HANDLING OF THE CONSUMABLES

5 SYSTEM OPTIONS

5-1. System Options of EP2030

5-2. System Options of EP1085

5-3. System Options of EP1054

Mechanical/Electrical

1 CROSS-SECTIONAL VIEW

1-1. Cross-Sectional View of 23 cpm Copier

1-2. Cross-Sectional View of 18 cpm Copier

1-3. Cross-Sectional View of 15 cpm Copier

4 SEQUENTIAL EXPLANATION

5-1. Imaging Unit Drive

5-2. Imaging Unit Toner Recycling

5-3. Imaging Unit Fuse

7 DRUM CHARGING

8 IMAGE ERASE LAMP

9 OPTICAL SECTION

9-1. Exposure Lamp

9-3. Lamp Reflectors

9-4. Aperture Plates

9-5. Scanner and 2nd/3rd Mirror Carriage Movement

9-6. 4th Mirror Movement

9-7. Lens Movement

10 ORIGINAL SIZE DETECTING SENSORS (23 cpm COPIER ONLY)

10-1. Original Size Detecting Sensors

10-2. Original Size Detecting Operation

10-3. Sensor Locations

10-4. Size Detection

10-5. Original Size Detection Timing

10-6. Original Cover Angle Detection (23 cpm Copier Only)

11-1. ATDC Sensor

11-2. Magnet Roller

11-3. Developing Bias

11-4. Doctor Blade

11-5. Sleeve/Magnet Roller Lower Filter

12 TONER HOPPER

12-1. Toner Hopper Locking/Unlocking

12-2. Toner Replenishing

12-4. Toner Hopper Home Position Detection

12-5. Toner Bottle Vibration

12-6. Toner Replenishing Control

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

13-1. Edge Guide and Trailing Edge Stop

13-2. Drawer Positioning

13-3. Paper Lifting Plate

13-4. Drawer-in-Position Detection

13-5. Universal Tray (1st Drawer) Paper Size Detection

13-6. Paper Empty Detection

13-7. Paper Separating Mechanism

13-8. Paper Take-Up Roll

13-9. Paper Take-Up Retry Control

13-10. VERTICAL PAPER TRANSPORT

14 MULTI BYPASS TABLE

14-1. Paper Take-Up Mechanism

14-2. Paper Take-Up Retry Control

14-3. Paper Separating Mechanism

14-4. Paper Empty Detection

15 SYNCHRONIZING ROLLERS

15-1. Upper Synchronizing Roller Positioning

15-2. Paper Dust Remover

15-3. Synchronizing Roller Control

16 IMAGE TRANSFER AND PAPER SEPARATION

17 MAIN ERASE LAMP

18 PAPER SEPARATOR FINGERS

19 CLEANING UNIT

19-1. Cleaning Bias

20 PAPER TRANSPORT

21-1. Fusing Temperature Control

21-2. Fusing Rollers Pressure Mechanism

21-3. Cleaning Roller

22-1. Upper/Lower Separator Fingers

22-2. Paper Exit Sensor

23 EXIT/DUPLEX SWITCHING UNIT (OPTION)

24 DEHUMIDIFYING SWITCH (OPTION)

26 OPTICAL SECTION COOLING FAN

27 MEMORY BACKUP

Switches on PWBs/Tech.Rep.Settings

1 PRECAUTIONS FOR HANDLING THE PWBs

1-1. Precautions for Transportation and Storage

1-2. Precautions for Replacement and Inspection

2 CONTROL PANEL KEYS AND INDICATORS

2-1. 15 cpm Copier

2-2. 18 cpm Copier

2-3. 23 cpm Copier

FUNCTIONS OF 3 SWITCHES AND OTHER PARTS ON PWBs

3-1. PWB Location

3-2. Tech. Rep. Setting Switches Board

4-1. Functions Available from the User Mode

4-2. User Mode Setting Procedure

4-3. User Mode Setting Details

5-1. Service Mode Function Tree

5-2. Entering the Service Mode

5-3. Settings in the Service Mode

(2) Tech. Rep. Choice

(3) Altering Fixed Zoom Ratios (For 23 cpm Copier Only)

(4) PM Counter and Ports/Options Counter

(5) Paper Size Counter

(6) Misfeed Counter

(7) Malfunction Counter

(8) Parts/Supplies Life Counter

(9) Paper Size Input (For 23 cpm Copier Only)

6-1. Functions Available in the Adjust Mode

6-2. Entering the Adjust Mode

6-3. Settings in the Adjust Mode

7 FUNCTION SETTING REQUIREMENTS AT REPLACEMENT OF PARTS

Dis/Reassembly, Adjustments

1 SERVICE INSTRUCTIONS

1-1. INSTRUCTIONS FOR HANDLING THE PWBs WITH MOS ICs

1-2. HANDLING OF THE PC DRUM

1-3. PARTS WHICH MUST NOT BE TOUCHED

(2) Variable Resistors on Board

(3) Other Screws

2 DISASSEMBLY/REASSEMBLY

2-1. DOORS, COVERS, AND EXTERIOR PARTS: IDENTIFICATION AND REMOVAL PROCEDURES

2-2. REMOVAL OF PWBs

2-3. BELT INSTALLATIONS

2-4. PAPER TAKE-UP/TRANSPORT SECTIONS

(1) Removal of the Paper Take-Up Unit

(2) Removal of the Paper Take-Up Rolls

(3) Cleaning of the Paper Take-Up Rolls

(4) Removal of the Suction Unit

(5) Disassembly of the Suction Unit

(6) Replacement of the Paper Lifting Springs (2nd Drawer): 23 cpm copier only

(7) Disassembly of the Multi Bypass Table (15/18 cpm copier: OPTION)

2-5. OPTICAL SECTION

(1) Removal of the Lens Drive Cable

(2) Winding of the Lens Drive Cable

(3) Removal of the Scanner Drive Cable

(4) Winding of the Scanner Drive Cable

(5) Removal of the Scanner

(6) Cleaning of the Exposure Lamp

(7) Cleaning of the 1st/2nd/3rd Mirrors

(8) Cleaning of the Lens and 4th Mirror

(9) Cleaning of the Optical Section Cooling Fan Filter (15/18 cpm copier only)

2-6. IMAGING UNIT

(1) Disassembly, Cleaning, Replacement and Starter Changing of the Imaging Unit

(2) Cleaning of the Main Erase Lamp

(3) Cleaning of the Image Erase Lamp

2-7. PC DRUM CHARGE CORONA/IMAGE TRANSFER CORONA UNIT

(1) Cleaning of the PC Drum Charge Corona Housing

(2) Cleaning of the PC Drum Charge Corona Grid Mesh

(3) Cleaning of the Comb Electrode

(4) Cleaning of the Image Transfer/Paper Separator Coronas Wires

(5) Cleaning of the Image Transfer/Paper Separator Coronas Housing

(6) Cleaning of the Lower Pre-Image Transfer Guide Plate

(7) Replacement of the Ozone Filter

2-8. FUSING UNIT

(1) Removal of the Fusing Unit

(2) Cleaning of the Pre-Fusing Guide Plate

(3) Removal of the Upper Fusing Roller

(4) Cleaning of the Upper Fusing Roller

(5) Cleaning of the Upper Paper Separator Fingers

(6) Cleaning of the Fusing Thermistor

(7) Removal of the Lower Fusing Roller

(8) Cleaning of the Lower Fusing Roller

(9) Cleaning of the Lower Paper Separator Fingers

(10) Disassembly of the Exit/Duplex Switching Unit (Option)

3-1. JIGS AND TOOLS USED

3-2. ADJUSTMENT REQUIREMENTS LIST

3-3. ADJUSTMENT OF SWITCHES

(1) Adjustment of Front Door Interlock Switch S21

3-4. ELECTRICAL/IMAGE ADJUSTMENTS

(1) Adjustment of the Maximum Exposure Lamp Voltage for the Manual Mode

(2) Adjustment of the Optimum Exposure Setting in the Manual Mode

(3) Adjustment of the Optimum Exposure Setting in the Auto Mode

(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/2nd (23 cpm copier only) Drawer Reference Position

(8) Adjustment of the Paper Lifting Plate Springs (2nd Drawer): 23 cpm copier only

(9) Adjustment of the Leading Edge Registration

(10) Adjustment of the Image Leading Edge Erase Width

(11) Adjustment of the Image Erase Lamp Position

3-5. OTHER ADJUSTMENTS

(1) Adjustment of the Scanner/Mirrors Carriage Position

(2) Adjustment of the Gap Between the Doctor Blade and Sleeve Roller

(3) Adjustment of the Original Size Detecting Board

4 MISCELLANEOUS

4-1. INSTALLATION OF THE PLUG-IN COUNTER MOUNTING BRACKET (OPTION)

Troubleshooting

1-1. General Precautions

1-2. How to Use This Book

1-3. Reading the Text

2 I/O PORT CHECK

2-1. Controlled Parts Check Procedure

2-2. Port Check List

3 PAPER TRANSPORT FAILURE

3-1. Paper Misfeed

3-2. Misfeed Detected Types and Detection Timings

3-3. Misfeed Clearing Procedures

(1) Copier Take-Up Misfeed

(2) PF-206 Take-Up Misfeed (23 cpm Copier)

(3) PF-112 Take-Up Misfeed (23 cpm Copier)

(4) Bypass Port Misfeed

(5) Transport/Separator Misfeed

(6) Fusing/Exit Misfeed

(7) Duplex Unit Vertical Transport/Storage Misfeed (23 cpm Copier)

(8) Duplex Unit Take-Up Misfeed (23 cpm Copier)

4-1. Self-Diagnostic Function

4-2. Troubleshooting Procedures

(1) C0000: Main Drive Motor´s failure to turn C0001: Main Drive Motor turning at abnormal timing

(2) C0010: PC Drive Motor´s failure to turn C0011: PC Drive Motor turning at abnormal timing

(3) C004C: Cooling Fan Motor´s failure to turn

(4) C0070: Toner Replenishing Motor´s failure to turn C0071: Toner Replenishing Motor turning at ...

(5) C0400: Exposure Lamp´s failure to turn ON C0410: Exposure Lamp turning ON at abnormal timing

(6) C0500: Warm-up failure C0510: Abnormally low fusing temperature C0520: Abnormally high fusing...

(7) C0600: Scanner Motor malfunction C0610: Lens Motor malfunction C0620: Mirror Motor malfunction

(8) C0900: 3rd Drawer Paper Lift-Up Sensor malfunction C0904: 3rd Drawer Paper Lift-Up Motor malf...

(9) C0990: Main Tray Upward Motion Failure C0991: Main Tray Downward Motion Failure C0992: Main T...

(10) C0998: Shifter Transfer Failure C0999: Shifter Return Failure C099A: Shifter Return Failure ...

(11) C099E: Shift Gate Position Detecting Failure C099F: Shift Gate Position Detecting Failure C0...

(12) C0d00: Duplex Unit Front/Rear Edge Guide Plates home position detection failure C0d20: Duple...

(13) C0F10: Faulty AE Sensor level C0F30: ATDC Sensor malfunction

(14) C0F02: Original size detection error (Defective CPU) C0FE2 to C0FFE: Original Size Detecting...

(15) Power is not Turned ON

5 IMAGE FAILURES

5-1. Image Failure Troubleshooting

5-2. Initial Checks

5-3. Troubleshooting Procedures Classified by Image Failures

(3) Low Image Density

(4) Foggy background

(5) Black Streaks or Bands

(6) Black Spots

(7) Blank Streaks or Bands

(9) Smear on Back

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