Page: 144
Service Guide ML393/ML393CPlus
Chapter 4 Failure Analysis
RAP 08: Line Feed Trouble
START
Manually rotate the platen knob.
Does it rotate smoothly?
NO Set the release lever to the open side.
Does the platen knob rotate smoothly?
NO Adjust the mini-pitch belt tension.
YES Perform the following.
1. Check for correct phasing of push tractor (left or right).
2. Replace the push tractor (left or right).
3. Check for smooth meshing of platen gear, idle gear, and drive gear.
4. Remove any foreign matter or dust on the platen gear, idle gear, or drive gear.
YES Is cable CN6 on the control board connected correctly?
NO Connect it correctly.
YES Is cable CN101 on the interface connector board connected correctly?
NO Connect it correctly.
YES Is cable CN102 on the interface connector board connected correctly?
NO Connect it correctly.
YES Replace the control board.
Has the problem been resolved?
YES End of procedure.
NO Replace the line feed motor.
After replacing the line feed motor, adjust the belt tension.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)