Oki LP-1040 Maintenance Manual page 266

■Technician troubleshooting
Check printing using the engine test pattern 13
Fuser unit
The heat roller is damaged or deformed
No
Adjust the nip pressure (see p. 10-17)
Yes Calibrate the skew/slack (see p. 10-20)
Not solved
Replace the heat roller
OK
Not solved
End of procedure
Replace the fuser unit (see p. 9-78)
* After replacing the fuser unit, adjust the nip pressure (see p. 10-17) and
calibrate the skew/slack (see p. 10-20)
OK
Not solved
End of procedure
Check the other possible problem locations
Transport unit
Transport unit belt is scratched or damaged
Yes
Replace the transport unit belt (see p. 9-234)
OK
Not solved
End of procedure
Adjust the slope height (see p. 10-59)
OK
Not solved
End of procedure
Replace the transport unit (see p. 9-231)
OK
Not solved
End of procedure
Check the other possible problem locations
Each roller
A roller in the paper transport unit touches the paper unevenly
Yes
OK
End of procedure Replace the rollers
Not solved
Check the other possible problem locations
No
Clean the transport unit belt
OK
Not solved
End of procedure
No
Clean
OK
Not solved
End of procedure
OK
End of procedure
Chapter 7 Printer Image Quality Problems Troubleshooting
Transfer roller unit
Deformation on the roller guide or roller (TRA)
No
Adjust the spacer transfer guide height
Yes
Not solved
End of procedure
Replace the transfer roller unit (see p. 9-217)
OK
Not solved
End of procedure
Check the other possible problem locations
OK
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