Oki B 4100 Maintenance Manual page 331

Troubleshooting flow chart 9:
The blank background is smeared.
Is the contact of the cleaning roller
with the contact assembly properly?
Troubleshooting flow chart 10:
Is the LED head connected properly?
Power Supply Unit or MCNT Board.
40055101TH Rev.4
Has the Image Drum been
exposed to external light?
No
Is the heat roller of the
fuser unit dirty?
No
of the ID unit in contact
No
Replace the ID unit and
Power Supply Unit.
Blank paper is output
(Check connector CN2 on
the MCNT Board.)
Yes
Is the ID unit set
properly?
Yes
Replace the LED head,
Yes
Close and wait for about
15 minutes.
Yes
Clean it.
Yes
Adjust the contact of the
cleaning roller to contact
the contact assembly properly.
No
Connect the LED print
head properly.
No
Set the ID unit properly.
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