1 INTRODUCTION 4
1.1. TRANSLATION LISTS 4
1.2. ABOUT LEAD FREE SOLDER (PbF: Pb free) 6
1.3. HOW TO RECOGNISE THAT Pb FREE SOLDER IS
USED 7
1.4. SAFETY PRECAUTIONS 8
1.5. INSULATION RESISTANCE TEST 8
1.6. FOR SERVICE TECHNICIANS 8
1.7. BATTERY CAUTION 8
1.8. AC CAUTION 9
1.9. PERSONAL SAFETY PRECAUTIONS 9
1.10. SERVICE PRECAUTIONS 11
1.11. FOR BEST PERFORMANCE 11
2 FEATURES AND SPECIFICATIONS 12
2.1. FEATURES 12
2.2. SPECIFICATIONS 13
2.3. OPTIONAL ACCESSORIES 13
3 INSTALLATION 14
3.1. LOCATION OF CONTROLS 14
3.2. CONNECTIONS 16
3.3. INSTALLATION 17
4 MAINTENANCE 29
4.1. MAINTENANCE ITEMS AND COMPONENT LOCATIONS
29
4.2. PRINTING 31
4.3. PRINTING (PAPER PICK UP) 32
4.4. SCANNING (ADF) 33
4.5. MAINTENANCE 34
4.6. DOCUMENT JAMS 37
4.7. RECORDING PAPER JAMS 38
5 DISASSEMBLY INSTRUCTIONS 41
5.1. UPPER MAIN CABINET SECTION 42
5.2. LOWER MAIN CABINET SECTION 43
5.3. HOW TO REMOVE THE OPERATION PANEL ASS’Y 44
5.4. HOW TO REMOVE THE PICK UP UNIT 45
5.5. HOW TO REMOVE THE PICK UP ROLLER 46
5.6. HOW TO REMOVE THE OPERATION BOARD 47
5.7. HOW TO REMOVE THE LOWER FLAME 48
5.8. HOW TO REMOVE THE SEPARATION RUBBER 48
5.9. HOW TO REMOVE THE TRANSFER ROLLER 49
5.10. HOW TO REMOVE THE SEPARATION ROLLER 50
5.11. HOW TO REMOVE THE BOTTOM PLATE 51
5.12. HOW TO REMOVE THE ANALOG BOARD 51
5.13. HOW TO REMOVE THE HIGH VOLTAGE POWER
BOARD 52
5.14. HOW TO REMOVE THE LASER UNIT 52
5.15. HOW TO REMOVE THE FAN UNIT 53
5.16. HOW TO REMOVE THE LOW VOLTAGE POWER
BOARD 53
5.17. HOW TO REMOVE THE SOLENOID 54
5.18. HOW TO REMOVE THE HANDSET HOLDER 54
5.19. HOW TO REMOVE THE MAIN MOTOR 55
5.20. HOW TO REMOVE THE FUSER UNIT 56
5.21. HOW TO REMOVE THE CIS 57
5.22. NOTE FOR ASSEMBLING 58
5.23. INSTALLATION POSITION OF THE LEAD 59
6 TROUBLESHOOTING GUIDE 60
6.1. USER RECOVERABLE ERRORS 60
6.2. PROGRAMMING AND LISTS 62
6.3. TEST FUNCTIONS 65
6.4. REMOTE PROGRAMMING 69
6.5. TROUBLESHOOTING DETAILS 77
7 CIRCUIT OPERATIONS 148
7.1. CONNECTION DIAGRAM 148
7.2. GENERAL BLOCK DIAGRAM 149
7.3. FACSIMILE SECTION 151
7.4. NCU SECTION 162
7.5. ITS (Integrated telephone System) and MONITOR
SECTION 164
7.6. CIS CONTROL SECTION 166
7.7. STEPPING MOTOR DRIVE SECTION 167
7.8. FAN MOTOR SECTION 171
7.9. SOLENOID DRIVE SECTION 173
7.10. LSU (Laser Scanning Unit) SECTION 174
7.11. SENSORS AND SWITCHES SECTION 176
7.12. OPERATION BOARD SECTION 185
7.13. LCD SECTION 186
7.14. HVPS (High Voltage Power Supply) SECTION 187
7.15. HEAT LAMP CONTROL CIRCUIT 189
7.16. POWER SUPPLY BOARD SECTION 195
8 REFERENCE MATERIALS DATA 198
8.1. PRINTING OPERATION PRINCIPLE 198
8.2. TERMINAL GUIDE OF THE ICs TRANSISTORS AND
DIODES 206
8.3. HOW TO REPLACE THE FLAT PACKAGE IC 207
8.4. DIGITAL BOARD SECTION 209
8.5. MODEM SECTION 211
8.6. TEST CHART 217
9 FIXTURES AND TOOLS 219
10 CABINET, MECHANICAL AND ELECTRICAL PARTS
LOCATION 220
10.1. GENERAL SECTION 220
10.2. OPERATION COVER SECTION (1) 221
10.3. OPERATION COVER SECTION (2) 222
10.4. OPERATION COVER SECTION (3) 223
10.5. PICK UP SECTION 224
10.6. FUSER SECTION 225
10.7. UPPER MAIN CABINET SECTION 226
10.8. LOWER MAIN CABINET SECTION (1) 227
10.9. LOWER MAIN CABINET SECTION (2) 228
10.10. LOWER CABINET SECTION (3) 229
10.11. ACTUAL SIZE OF SCREWS AND WASHER 230
CONTENTS
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