44292401TH Rev.1
197 /
Oki Data CONFIDENTIAL
TROUBLESHOOTING
19.1.17
Pitch lines, pitch uneven density
20.1.17
Pitch lines, pitch uneven density
A. Typical faulty images
B. Troubleshooting procedure
4138fs4507c0
A034F4C507DA
24mm
A034F4C508DA
25mm
Step
Section
Check item
Result
Action
1
Image check
Do faint lines extending in parallel
with the main scanning direction
occur at a pitch of 24 mm?
YES
• Execute [UTILITY] - [MACHINE
SETTING] - [IMAGE
REFRESH].
See P.
105
NOTE
• If one image refresh
sequence does not make the
faint lines less noticeable,
run it a second time.
Does uneven density at a pitch of
25 mm occur?
YES
• Leave the main unit to stand
idle under environment free of
high humidity.
2
Toner cartridge
Is the toner cartridge for each
color of toner installed in posi-
tion?
NO
Reinstall.
3
PH unit
Is the PH unit secured in position
with the fixing screw?
NO
Secure it in position.
4
Toner cartridge
Is the drive mechanism of the
toner Cartridge dirty or dam-
aged?
YES
Clean or replace the toner car-
tridge.
5
Imaging
cartridge
Is the photo conductor dirty,
scratched, or worn?
YES Replace the imaging cartridge.
6
2nd transfer
roller
Are the 2nd transfer roller and
drive mechanism dirty, deformed,
or worn?
YES Replace the 2nd transfer roller.
7
Fuser unit
Are the rollers and drive mecha-
nism of the fuser unit dirty,
scratched, deformed, or worn?
YES Replace the fuser unit.
8
Have steps 1 to 7 eliminated the
problem?
NO
Replace the imaging cartridge.
20. FAX error
20.1 Communication error
21. FAX error
21.1 Communication error
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.
A00FF4E001DA
_ _ _ _ _ _
CAUTION
_ _ _ _ _ _ _
COMMUNICATION
ERROR(####)
( PRESS ANY KEY )
20.2 Outline
Summary of Contents for MC160MFP
Page 1: ...MC160MFP Maintenance Manual 011710A...
Page 18: ...44292401TH Rev 1 17 Oki Data CONFIDENTIAL MC160n Main body THEORY OF OPERATION...
Page 55: ...44292401TH Rev 1 54 Oki Data CONFIDENTIAL Auto Document Feeder Unit THEORY OF OPERARTION...
Page 61: ...44292401TH Rev 1 60 Oki Data CONFIDENTIAL MC160n Main body FIELD SERVICE...
