Oki LP-1040 Maintenance Manual page 268

■Technician troubleshooting
Check printing using the engine test pattern 14
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
Check the other possible problem locations
Transfer roller unit
Replace the transfer roller unit (see p.9-217)
OK
Not solved
End of procedure
Check the other possible problem locations
Developer unit
Replace the developer unit (see p. 9-35)
Not solved
Check the other possible problem locations
OK
End of procedure
OK
End of procedure
Chapter 7 Printer Image Quality Problems Troubleshooting
LED head
Check that the LED head is secure and release it
OK
Not solved
End of procedure
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
Replace the LED head (see p. 9-214)
Calibrate the LED focal point (see p.10-52)
OK
Not solved
End of procedure
Check the other possible problem locations
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