Rap 07: Line Feed Problem - OKIDATA Pacemark 3410 Service Handbook

RAP 07: Line Feed Problem

START.
Place the release lever in the cut-sheet feed position.
Manually rotate the platen knob.
Does it rotate smoothly?
YES Place the release lever in the tractor feed position.
Rotate the platen knob.
Does it smoothly rotate?
NO
YES
NO Replace the line feed motor.
A
Is the cable to CN6 on the main logic board connected correctly?
NO Connect it correctly.
YES Is the cable to CN101 on the interface connector board connected correctly?
NO Connect it correctly.
YES Is the cable to CN102 on the interface connector board connected correctly?
NO Connect it correctly.
YES Replace the main logic board.
Is the problem resolved?
YES
NO
Failure Analysis
Check the synchronization of the push tractor assemblies.
Replace the right or left push tractor, as necessary.
Go to A.
End of procedure
Replace the line feed motor.
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