1 INTRODUCTION 4
1.1. ABOUT LEAD FREE SOLDER (PbF: Pb free)
4
1.2. HOW TO RECOGNISE THAT Pb FREE SOLDER IS
USED
5
1.3. SAFETY PRECAUTIONS
6
1.4. INSULATION RESISTANCE TEST
6
1.5. FOR SERVICE TECHNICIANS
6
1.6. BATTERY CAUTION
6
1.7. AC CAUTION
7
1.8. PERSONAL SAFETY PRECAUTIONS
7
1.9. SERVICE PRECAUTIONS
9
1.10. FOR BEST PERFORMANCE
9
2 FEATURES AND SPECIFICATIONS
10
2.1. FEATURES
10
2.2. SPECIFICATIONS
11
2.3. OPTIONAL ACCESSORIES
11
3 INSTALLATION
12
3.1. LOCATION OF CONTROLS
12
3.2. CONNECTIONS
14
3.3. INSTALLATION
15
4 MAINTENANCE
27
4.1. MAINTENANCE ITEMS AND COMPONENT LOCATIONS
27
4.2. PRINTING
29
4.3. PRINTING (PAPER PICK UP)
30
4.4. SCANNING (ADF)
31
4.5. MAINTENANCE
32
4.6. DOCUMENT JAMS
35
4.7. RECORDING PAPER JAMS
36
5 DISASSEMBLY INSTRUCTIONS
40
5.1. UPPER MAIN CABINET SECTION
41
5.2. LOWER MAIN CABINET SECTION
42
5.3. HOW TO REMOVE THE OPERATION PANEL ASS’Y
43
5.4. HOW TO REMOVE THE PICK UP UNIT
44
5.5. HOW TO REMOVE THE PICK UP ROLLER
45
5.6. HOW TO REMOVE THE OPERATION BOARD
46
5.7. HOW TO REMOVE THE LOWER FLAME
47
5.8. HOW TO REMOVE THE SEPARATION RUBBER
47
5.9. HOW TO REMOVE THE TRANSFER ROLLER
48
5.10. HOW TO REMOVE THE SEPARATION ROLLER
49
5.11. HOW TO REMOVE THE BOTTOM PLATE
50
5.12. HOW TO REMOVE THE ANALOG BOARD
50
5.13. HOW TO REMOVE THE HIGH VOLTAGE POWER
BOARD
51
5.14. HOW TO REMOVE THE LASER UNIT
51
5.15. HOW TO REMOVE THE FAN UNIT
52
5.16. HOW TO REMOVE THE LOW VOLTAGE POWER
BOARD
52
5.17. HOW TO REMOVE THE SOLENOID
53
5.18. HOW TO REMOVE THE HANDSET HOLDER
53
5.19. HOW TO REMOVE THE MAIN MOTOR
54
5.20. HOW TO REMOVE THE FUSER UNIT
55
5.21. HOW TO REMOVE THE CIS
56
5.22. NOTE FOR ASSEMBLING
57
5.23. INSTALLATION POSITION OF THE LEAD
58
6 TROUBLESHOOTING GUIDE
59
6.1. USER RECOVERABLE ERRORS
59
6.2. PROGRAMMING AND LISTS
61
6.3. TEST FUNCTIONS
64
6.4. REMOTE PROGRAMMING
68
6.5. TROUBLESHOOTING DETAILS
76
7 CIRCUIT OPERATIONS
147
7.1. CONNECTION DIAGRAM
147
7.2. GENERAL BLOCK DIAGRAM
148
7.3. FACSIMILE SECTION
150
7.4. NCU SECTION
161
7.5. ITS (Integrated telephone System) and MONITOR
SECTION
163
7.6. CIS CONTROL SECTION
165
7.7. STEPPING MOTOR DRIVE SECTION
166
7.8. FAN MOTOR SECTION
170
7.9. SOLENOID DRIVE SECTION
172
7.10. LSU (Laser Scanning Unit) SECTION
173
7.11. SENSORS AND SWITCHES SECTION
175
7.12. OPERATION BOARD SECTION
184
7.13. LCD SECTION
185
7.14. HVPS (High Voltage Power Supply) SECTION
186
7.15. HEAT LAMP CONTROL CIRCUIT
188
7.16. POWER SUPPLY BOARD SECTION
194
8 REFERENCE MATERIALS DATA
197
8.1. PRINTING OPERATION PRINCIPLE
197
8.2. TERMINAL GUIDE OF THE ICs TRANSISTORS AND
DIODES
205
8.3. HOW TO REPLACE THE FLAT PACKAGE IC
206
8.4. DIGITAL BOARD SECTION
208
8.5. MODEM SECTION
210
8.6. TEST CHART
216
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. LOW ER CABINET SECTION (3)
229
10.11. ACTUAL SIZE OF SCREWS AND WASHER
230
11 ACCESSORIES AND PACKING MATERIALS
231
CONTENTS
Page Page
2
KX-FL612CX / KX-FL612CX-S
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