Oki LP-1040 Maintenance Manual page 246

■Technician troubleshooting
Check printing using the engine test pattern 15
Transfer roller unit
Reinstall the GUIDE DC R and GUIDE DC L
Not solved OK
Replace the transfer roller unit (see p. 9-217)
OK
Not solved
End of procedure
Check the other possible problem locations
Transport unit
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
Process cartridge
Check whether or not the process cartridge has been replaced in the
process cartridge log (see p. 2-15).
The process cartridge has been replaced
No
Replace the process cartridge
Yes
Not solved
End of procedure
Check the other possible problem locations
Environment (temperature, humidity, and paper)
Turn the heater switch On or Off
*Leave the Printer for at least 2 hours after changing the setting
OK
Not solved
End of procedure
Replace the paper
OK
Not solved
End of procedure
Check the other possible problem locations
Chapter 7 Printer Image Quality Problems Troubleshooting
Fuser unit
The heat roller is damaged or deformed
Adjust the nip pressure (see p. 10-17), calibrate
Yes the skew/slack (see p. 10-20)
OK
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)
Not solved
End of procedure
Check the other possible problem locations
No
OK
Not solved
End of procedure
OK
7-17