Oki MC160MFP Maintenance Manual page 197

Oki Data CONFIDENTIAL
19.1.15 Brush effect
20.1.15 Brush effect
A. Typical faulty images
B. Troubleshooting procedure
Step Section Check item
1 Is the media damp?
Media
Does the media being used con-
2
form to specifications?
Are there scratches or lines evi-
3 dent on the photo conductor sur-
face?
Is the transfer belt dirty with fin-
4 Imaging
gerprints or oil?
cartridge
Is the transfer belt dirty or
5
scratched?
Is the fusing entrance guide plate
6 Fuser unit
dirty?
44292401TH Rev.1
brush effect
A0CRF4C517DA
Result Action
Replace the media with new
YES media that has just been
unwrapped.
NO Replace the media.
YES Replace the imaging cartridge.
YES Clean.
Wipe the surface clean of dirt with
a soft cloth.
YES
Replace the scratched transfer
belt with a new imaging cartridge.
YES Clean.
NO Replace the fuser unit.
19.1.16 Back marking
20.1.16 Back marking
A. Typical faulty images
B. Troubleshooting procedure
Step Section Check item
Is there a foreign object in the
1 Media path
media path?
Is the fusing entrance guide plate
2
dirty or scratched?
Fuser unit
Is the fusing roller scratched or
3
dirty?
imaging Is the transfer belt dirty with fin-
4
cartridge gerprints or foreign matter?
2nd transfer Is the 2nd transfer roller dirty or
5
roller scratched?
Have steps 1 to 5 eliminated the
6
problem?
TROUBLESHOOTING
A0CRF4C518DA
Result Action
YES Remove the foreign object.
YES Clean or replace.
YES Replace the fuser unit.
YES Clean.
YES Replace the 2nd transfer roller.
Replace the imaging cartridge.
NO Replace the fuser unit.
Replace the high voltage unit.
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