COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
CHAPTER 6 TROUBLESHOOTING
6-157
5.2 Faulty Feeding
5.2.1 Double Feeding
Separation roller, Spring
1) Is the separation roller deformed or worn?
YES: Replace the separation roller.
NO: Replace the spring used to pull the separation roller.
5.2.2 Wrinkles
Pickup assembly
1) Turn off the power while paper is moving through the feeding as-
sembly. At this time, is the paper wrinkled? Or is it moving askew?
YES: Check the pickup assembly. Check the registration roller.
Paper
2) Try fresh paper. Is the problem corrected?
YES: The paper may be moist. Advise the user on the correct method of
storing paper.
3) Try paper of a recommended type. Is the problem corrected?
YES: Advise the user to use paper of a recommended type.
Fixing assembly, Paper guide
4) Is the paper guide soiled with toner or the like?
YES: Clean the guide with solvent.
5) Is the height (position) of the paper guide correct?
NO: Adjust the height (position) of the paper guide.
Lower roller pressure, Upper/Lower roller pressure
6) Is the lower roller pressure (nip width) as indicated?
NO: Adjust the nip width.
YES: Try replacing the upper and lower rollers one after the other.
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