Oki LP-1040 Maintenance Manual page 248

■Technician troubleshooting
Check printing using the engine test pattern 15
LED head
Clean the LED head lens (see p. 3-62)
Not solved
Check that the LED lights up (see p. 7-50)
Not solved
Remove and reinsert the cables (see step 4 of p. 9-214)
Not solved
Replace the LED head (see p. 9-214)
Calibrate the LED focal point (see p. 10-52)
Not solved
Check the other possible problem locations
Chapter 7 Printer Image Quality Problems Troubleshooting
OK
End of procedure
OK
End of procedure
OK
End of procedure
OK
End of procedure
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