![Canon NP6621 Скачать руководство пользователя страница 51](http://html.mh-extra.com/html/canon/np6621/np6621_service-handbook_59710051.webp)
3–5
IMAGE FAULTS
C. Troubleshooting Image Faults
1
The copy is too light (half-tone areas only)
Cause
AE adjust-
ment
Developing
assembly
Scanner
Drum
cartridge
Step
1
2
3
4
Yes/No
YES
YES
NO
YES
NO
Remedy
End.
Perform AE adjustment.
Replace the developing
assembly.
End.
Replace the drum cartridge.
Checks
Perform the Basic Image Adjustment
Procedure. Is the problem corrected?
Is the density too low on copies made
in AE mode?
Is the coating of toner on the develop-
ing cylinder even?
Clean the mirrors, lenses, and dust-
proofing glass. Is the problem cor-
rected?
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 ...