Oki MC160MFP Maintenance Manual page 198

Oki Data CONFIDENTIAL
19.1.17 Pitch lines, pitch uneven density
20.1.17 Pitch lines, pitch uneven density
A. Typical faulty images
24mm
4138fs4507c0
B. Troubleshooting procedure
Step Section Check item
Do faint lines extending in parallel
with the main scanning direction
occur at a pitch of 24 mm?
1 Image check
Does uneven density at a pitch of
25 mm occur?
Is the toner cartridge for each
2 Toner cartridge color of toner installed in posi-
tion?
Is the PH unit secured in position
3 PH unit
with the fixing screw?
Is the drive mechanism of the
4 Toner cartridge toner Cartridge dirty or dam-
aged?
Imaging Is the photo conductor dirty,
5
cartridge scratched, or worn?
Are the 2nd transfer roller and
2nd transfer
6 drive mechanism dirty, deformed,
roller
or worn?
Are the rollers and drive mecha-
7 Fuser unit nism of the fuser unit dirty,
scratched, deformed, or worn?
Have steps 1 to 7 eliminated the
8
problem?
44292401TH Rev.1
25mm
A034F4C507DA A034F4C508DA
Result Action
• Execute [UTILITY] - [MACHINE
SETTING] - [IMAGE
REFRESH].
See P.105
NOTE
YES
• If one image refresh
sequence does not make the
faint lines less noticeable,
run it a second time.
• Leave the main unit to stand
YES idle under environment free of
high humidity.
NO Reinstall.
NO Secure it in position.
Clean or replace the toner car-
YES
tridge.
YES Replace the imaging cartridge.
YES Replace the 2nd transfer roller.
YES Replace the fuser unit.
NO Replace the imaging cartridge.
21. FAX error
20. FAX error
20.1 Communication error
21.1 Communication error
CAUTION
______
COMMUNICATION
( PRESS ANY KEY )
20.2 Outline
21.2 Outline
• Error caused by a problem of communication functioning. Five possible causes of errors
are:
1. Communication is discontinued by a machine error.
2. Communication is discontinued by a machine trouble.
3. Communication is discontinued by an error occurring at the destination station.
4. Communication is discontinued by a protocol error.
5. ADF Error on trouble.
• When communication is discontinued due to item 3 or 4, transmission is retried. In other
case, transmission is canceled without retry.
TROUBLESHOOTING
_______
ERROR(####)
A00FF4E001DA
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