iii
CONTENTS
SERVICING CHART ................................. 1-1
II. PERIODICALLY REPLACED PARTS ....... 1-2
A. Periodically Replaced Parts ................ 1-2
III. DURABLES ............................................... 1-3
A. Copier .................................................. 1-3
B. Cassette Feeding Module-B2/
Cassette Feeding Module-A2/
Cassette Feeding Unit-K1 ................... 1-4
C. Paper Deck Pedestal-K1 ..................... 1-4
IV. MAINTENANCE AND INSPECTION ........ 1-5
A. Image Adjustment Procedure .............. 1-5
B. Points to Note for Servicing Work ....... 1-6
14. Routing the Blanking Shutter Cable .... 2-8
15. Adjusting the Lower Fixing Roller
Nip ....................................................... 2-8
16. Points to Note After Replacing
the Upper Fixing Unit ........................... 2-9
Roller Cleaning Solenoid ................... 2-11
Tool .................................................... 2-13
23. Positioning the Paper Deflecting
Plate Solenoid (SL8) ......................... 2-13
B. Electrical .................................................. 2-15
1. Adjustment after Replacing PCBs ..... 2-15
2. Adjusting the Scanning Lamp
Intensity ............................................. 2-15
3. AE Adjustment ................................... 2-15
4. Multifeeder Paper Width Sensor
Adjustment ......................................... 2-19
5. Setting the Paper Size for the
Universal Cassette ............................ 2-20
6. Initializing the Back-Up RAM ............. 2-21
7. Checking the Photointerrupters ......... 2-21
A. Mechanical ................................................. 2-1
1. Adjusting the Image Leading
Edge Margin ([3], No.305;
registration ON timing) ......................... 2-1
Non-Image Width ([3], No.306;
blank shutter ON timing) ...................... 2-1
3. Adjusting the Image Trailing
Edge Non-Image Width ([3], No.309;
blanking shutter timing) ....................... 2-2
Registration ......................................... 2-2
5. Adjusting the Left/Right Margin
(No.311 left/right margin
adjustment) .......................................... 2-3
6. Routing the Scanner Drive Cable ........ 2-4
7. Adjusting the Mirror Position
(optical length between No.1mirror
and No.2/3 mirror) ............................... 2-5
8. Adjusting the Scanner Cable
Tension ................................................ 2-5
9. Orienting the Pick-Up Roller ................ 2-5
10. Orienting the Multifeeder
Pick-Up Roller ...................................... 2-6
11. Positioning the Multifeeder Assembly
Paper Guide Plate Cam ...................... 2-6
Содержание NP6621
Страница 4: ...ii ...
Страница 8: ...vi ...
Страница 48: ...3 2 IMAGE FAULTS ...
Страница 49: ...3 3 IMAGE FAULTS NOT USED ...
Страница 50: ...3 4 IMAGE FAULTS B Image Fault Samples not available ...
Страница 80: ...4 16 TROUBLESHOOTING MALFUNCTIONS ...
Страница 98: ...6 8 ARRANGEMENT AND FUNCTIONS OF THE ELECTRICAL PARTS D PCBs Figure 6 603 1 2 3 4 5 6 7 8 9 10 11 12 ...
Страница 108: ...6 18 ARRANGEMENT AND FUNCTIONS OF THE ELECTRICAL PARTS 4 Fixing Heater Driver PCB Figure 6 611 J402 1 J401 W1 W2 ...
Страница 134: ...A 4 APPENDIX ...
Страница 135: ...A 5 APPENDIX C GENERAL CIRCUIT DIAGRAM not available ...
Страница 136: ...A 6 APPENDIX ...
Страница 144: ...A 14 APPENDIX ...