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22. IMAGE QUALITY PROBLEM
Field Service Ver. 2.0 Jul. 2009
902
TROUBLESHOOTING
22.3.38
Printer 4-color: back marking
A. Typical faulty images
B. Troubleshooting procedure
A02EF4C530DA
AA
Step
Section
Check item
Result
Action
1
2nd image trans-
fer roller unit
Image transfer roller is scratched or
dirty.
YES
Change transfer roller unit.
2
Paper path
There is foreign matter on paper
path.
YES
Remove foreign matter.
3
Fusing unit
Fusing entrance guide plate is
scratched or dirty.
YES
Clean or change.
4
Lower fusing roller is scratched or
dirty.
YES
Change fusing unit.
5
Transfer belt unit
Fingerprints, oil, or other foreign
matter is evident on the transfer
belt.
YES
Clean with specified solvent.
(See Maintenance.)
6
The problem has been eliminated
through the checks of steps up to 5.
NO
Change transfer belt unit.
o
Change high voltage unit/2.
Service Manual Y110571-1
Содержание d-color MF651
Страница 1: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Страница 24: ...MEASURES TO TAKE IN CASE OF AN ACCIDENT S 22 Blank Page...
Страница 27: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Страница 511: ...Field Service Ver 2 0 Jul 2009 10 UTILITY 451 ADJUSTMENT SETTING Blank Page Y110571 1 Service Manual...
Страница 716: ...16 MECHANICAL ADJUSTMENT Field Service Ver 2 0 Jul 2009 656 ADJUSTMENT SETTING Blank Page Service Manual Y110571 1...
Страница 1053: ...UPDATING STATUS DATE UPDATED PAGES PAGES CODE 10 2009 1ST EDITION 1053053 Y110571 1...