EP1050
GENERAL,
MECHANICAL/
ELECTRICAL
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EP1050 Service manual
CONTENTS
GENERAL
1. SPECIFICATIONS
2. SPACE REQUIREMENTS
3. PRECAUTIONS FOR INSTALLATION
4. PRECAUTIONS FOR USE
5. HANDLING OF THE CONSUMABLES
6. SYSTEM OPTIONS
7. PARTS IDENTIFICATION
8. CONTROL PANEL KEYS AND INDICATORS
MECHANICAL/ELECTRICAL
1. CROSS-SECTIONAL VIEW
2. COPY PROCESS
3. DRIVE SYSTEM
4. SEQUENTIAL EXPLANATION
5. PC DRUM
6. IMAGING UNIT
7. DEVELOPMENT
8. CLEANING UNIT
9. TONER HOPPER
10. DRUM CHARGING
11. IMAGE ERASE LAMP
12. OPTICAL SECTION
13. MAIN ERASE LAMP
14. IMAGE TRANSFER AND PAPER SEPARATION
15. PAPER SEPARATOR FINGERS
16. PAPER TAKE-UP/FEED SECTION
17. VERTICAL PAPER TRANSPORT
18. SYNCHRONIZING ROLLERS
19. PAPER TRANSPORT
20. FUSING UNIT
21. EXIT UNIT
22. EXIT/DUPLEX SWITCHING UNIT (OPTION)
23. DEHUMIDIFYING SWITCH
24. MANUAL BYPASS FEEDING
25. MULTI BYPASS TABLE MB-1 (OPTION)
26. COOLING FAN
27. OPTICAL SECTION COOLING FAN
28. POWER SUPPLY UNIT COOLING FAN
29. MEMORY BACKUP
30. MAIN DRIVE MOTOR M2 MALFUNCTION
31. PC DRIVE MOTOR M1 MALFUNCTION
32. MISFEED DETECTION
DIS/REASSEMBLY, ADJUSTMENT
CONTENTS
1. SERVICE INSTRUCTIONS
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
2-5. OPTICAL SECTION
2-6. Imaging Unit
2-7. PC DRUM CHARGE CORONA/IMAGE TRANSFER CORONA UNIT
3. ADJUSTMENT
3-1. JIGS AND TOOLS USED
3-2. ADJUSTMENT REQUIREMENTS LIST
3-3. ADJUSTMENTS OF SWITCHES
3-4. ELECTRICAL/IMAGE ADJUSTMENTS
3-5. OTHER ADJUSTMENTS
4. MISCELLANEOUS
4-1. INSTALLATION OF THE PLUG-IN COUNTER MOUNTING BRACKET (OPTION)
SWITCHES ON PWBs
CONTENTS
1. PRECAUTIONS FOR HANDLING THE PWBs
2. FUNCTIONS OF SWITCHES AND OTHER PARTS ON PWBs
3. TECH. REP. PROGRAM MODE
4. ADJUST MODE
5. USER&S CHOICE MODE
TROUBLESHOOTING
CONTENTS
1. INTRODUCTION
2. PAPER TRANSPORT FAILURE
1. Paper Misfeed
1-1. Misfeed Detected When Copier is Turned ON
1-2. Paper Take-Up Misfeed
1-3. Bypass Port Misfeed
1-4. Transport/Separator Misfeed
1-5. Fusing/Exit Misfeed
3. MALFUNCTIONS
1. Self-Diagnostic Function
2. Power is not Turned ON
3. E1, E2
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