
1 INTRODUCTION 4
1.1. ABOUT LEAD FREE SOLDER (PbF: Pb free) 4
1.2. SAFETY PRECAUTIONS 5
1.3. INSULATION RESISTANCE TEST 5
1.4. FOR SERVICE TECHNICIANS 5
1.5. BATTERY CAUTION 5
1.6. AC CAUTION 6
1.7. PERSONAL SAFETY PRECAUTIONS 6
1.8. SERVICE PRECAUTIONS 8
2 FEATURES AND SPECIFICATIONS 9
2.1. FEATURES 9
2.2. SPECIFICATIONS 10
2.3. OPTIONAL ACCESSORIES 10
3 INSTALLATION 11
3.1. LOCATION OF CONTROLS 11
3.2. CONNECTIONS 14
3.3. CONNECTING TO A COMPUTER 15
3.4. INSTALLATION 16
3.5. INSTALLING MULTI-FUNCTION STATION 29
4 MAINTENANCE 30
4.1. MAINTENANCE ITEMS AND COMPONENT LOCATIONS
30
4.2. PRINTING 32
4.3. PRINTING (PAPER PICK UP) 33
4.4. SCANNING (ADF) 34
4.5. MAINTENANCE 35
4.6. DOCUMENT JAMS 38
4.7. RECORDING PAPER JAMS 39
5 DISASSEMBLY INSTRUCTIONS 44
5.1. UPPER MAIN CABINET SECTION 45
5.2. LOWER MAIN CABINET SECTION 46
5.3. HOW TO REMOVE THE OPERATION PANEL ASS’Y 47
5.4. HOW TO REMOVE THE PICK UP UNIT 48
5.5. HOW TO REMOVE THE PICK UP ROLLER 49
5.6. HOW TO REMOVE THE OPERATION BOARD 50
5.7. HOW TO REMOVE THE LOWER FRAME 51
5.8. HOW TO REMOVE THE SEPARATION RUBBER 51
5.9. HOW TO REMOVE THE TRANSFER ROLLER 52
5.10. HOW TO REMOVE THE SEPARATION ROLLER 53
5.11. HOW TO REMOVE THE BOTTOM PLATE 54
5.12. HOW TO REMOVE THE ANALOG BOARD 54
5.13. HOW TO REMOVE THE HIGH VOLTAGE POWER
BOARD 55
5.14. HOW TO REMOVE THE LASER UNIT 55
5.15. HOW TO REMOVE THE FAN UNIT 56
5.16. HOW TO REMOVE THE LOW VOLTAGE POWER
BOARD 56
5.17. HOW TO REMOVE THE SOLENOID 57
5.18. HOW TO REMOVE THE HANDSET HOLDER 57
5.19. HOW TO REMOVE THE MAIN MOTOR 58
5.20. HOW TO REMOVE THE FUSER UNIT 59
5.21. HOW TO REMOVE THE CIS 60
5.22. NOTE FOR ASSEMBLING 61
5.23. INSTALLATION POSITION OF THE LEAD 62
6 TROUBLESHOOTING GUIDE 63
6.1. USER RECOVERABLE ERRORS 63
6.2. PROGRAMMING AND LISTS 65
6.3. TEST FUNCTIONS 69
6.4. PROBLEMS WITH PC SOFTWARE 73
6.5. REMOTE PROGRAMMING 74
6.6. TROUBLESHOOTING DETAILS 84
7 CIRCUIT OPERATIONS 155
7.1. CONNECTION DIAGRAM 155
7.2. GENERAL BLOCK DIAGRAM 156
7.3. FACSIMILE SECTION 159
7.4. NCU SECTION 172
7.5. ITS (Integrated telephone System) and MONITOR
SECTION 173
7.6. CIS CONTROL SECTION 175
7.7. STEPPING MOTOR DRIVE SECTION 176
7.8. FAN MOTOR SECTION 180
7.9. SOLENOID DRIVE SECTION 182
7.10. LSU (Laser Scanning Unit) SECTION 183
7.11. SENSORS AND SWITCHES SECTION 185
7.12. OPERATION BOARD SECTION 194
7.13. LCD SECTION 195
7.14. HVPS (High Voltage Power Supply) SECTION 196
7.15. HEAT LAMP CONTROL CIRCUIT 198
7.16. POWER SUPPLY BOARD SECTION 204
8 REFERENCE MATERIALS DATA 205
8.1. PRINTING OPERATION PRINCIPLE 205
8.2. TERMINAL GUIDE OF THE ICs TRANSISTORS AND
DIODES 215
8.3. HOW TO REPLACE A FLAT PACKAGE IC 219
8.4. DIGITAL BOARD SECTION 220
8.5. MODEM SECTION 222
8.6. TEST CHART 228
9 FIXTURES AND TOOLS 230
10 CABINET, MECHANICAL AND ELECTRICAL PARTS
LOCATION 231
10.1. GENERAL SECTION 231
10.2. OPERATION COVER SECTION (1) 232
10.3. OPERATION COVER SECTION (2) 233
10.4. OPERATION COVER SECTION (3) 234
10.5. PICK UP SECTION 235
10.6. FUSER SECTION 236
10.7. UPPER MAIN CABINET SECTION 237
10.8. LOWER MAIN CABINET SECTION (1) 238
10.9. LOWER MAIN CABINET SECTION (2) 239
10.10. LOWER MAIN CABINET SECTION (3) 240
10.11. ACTUAL SIZE OF SCREWS AND WASHER 241
11 ACCESSORIES AND PACKING MATERIALS 242
CONTENTS
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