Oki LP-1040 Maintenance Manual page 257

■Technician troubleshooting
Check printing using the engine test pattern 15
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
Reverse or replace the charger unit
Not solved
Yes
Replace the process cartridge
Not solved
Check the charger unit installation
OK
Not solved
End of procedure
Clean the four contact areas of the process cartridge
OK
Not solved
End of procedure
Check the other possible problem locations
7-28
Fuser unit
The heat roller is damaged or deformed
Yes
OK Replace the heat roller
End of procedure
Not solved
OK Replace the fuser unit (see p. 9-79)
End of procedure
* After replacing the fuser unit, adjust the nip pressure (see p. 10-17) and
calibrate the skew/slack (see p. 10-20)
Not solved
Check the other possible problem locations
No
Clean the heat roller
OK
Not solved
End of procedure
OK
End of procedure
OK
End of procedure
LED head
Clean the LED head lens (see p. 3-62)
OK
Not solved
End of procedure
Check that the LED lights up (see p. 7-50)
OK
Not solved
End of procedure
Remove and reinsert the cables (see step 4 to p. 9-214)
OK
Not solved
End of procedure
9-214
Replace the LED head (see p. )
* After replacing the LED head, calibrate the focal point (see p. 10-52)
Calibrate the light-emitting strobe width (see p. 10-55)
OK
Not solved
End of procedure
Check the other possible problem locations