22. IMAGE QUALITY PROBLEM
Field Service Ver. 1.1 May 2011
358
TROUBLESHOOTING
22.2.14
Printer monocolor: uneven density in sub scan direction
A. Typical faulty images
B. Troubleshooting procedure
A02EF4C520DA
Step
Section
Check item
Result
Action
1
Imaging unit
The surface of the PC drum is
scratched.
YES
Change imaging unit.
2
Dirty on the outside.
YES
Clean.
3
PH unit
The surface of the PH window is
dirty.
YES
Clean with cleaning jig.
4
Transfer roller
unit
Transfer roller is installed properly.
NO
Reinstall.
5
Transfer roller is dirty or scratched.
YES
Change transfer roller unit.
6
Transfer belt
unit
Is abnormality found in the cam
gear?
YES
Change transfer belt unit.
7
The problem has been eliminated
through the checks of steps up to 6.
NO
Change PH unit.
Change High voltage unit.
Printer control board.
d-Color MF2400
Summary of Contents for PF-P09
Page 1: ...SERVICE MANUAL Color Printer d Color MF2400 PF P09 Code Y113750 1...
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Page 27: ...SERVICE MANUAL Color Printer d Color MF2400 Code Y113750 1...
Page 436: ...SERVICE MANUAL Color Printer Code Y113750 1 SERVICE MANUAL PF P09...
Page 457: ...UPDATINGSTATUS DATE UPDATEDPAGES PAGES CODE 12 2011 1ST EDITION 457 Y113750 1...