18. The copy is blurred and fuzzy.CHAPTER 11 TROUBLESHOOTING11-80 COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CauseScanner drivecableScanner railPhotosensitivedrumDrum drivegearDevelopinggearCleanerassembly gearDrum drivesystemChecksIs the cable overlapping on thecable pulley while the scanner ismoving, or is the cable too slackor taut?Move the No. 1 mirror mount byhand. Does it move smoothly?Does the problem occur atintervals of about 25 cm?Does the problem occur atintervals of about 3 mm?Does the problem occur atintervals of about 6 mm?Does the problem occur atintervals of about 6 mm?Step123456YES/NOYESNOYESYESYESYESNOAction1. Route the cable onceagain.2. If cable is twisted orfrayed, replace it.Clean the surface of thescanner rail with alcohol.Thereafter, apply a smallamount of lubricant.1. Check the drum gear.2. Check the ends of thedrum (in contact withthe developing rolls)for scraches andprotrusions.Check the drum drivegear.Check the developingassembly.Check the cleanerassembly.Check the drum drivesystem.
