10. The copy has white spots (vertical).11. The copy has white lines (vertical).CHAPTER 11 TROUBLESHOOTING11-74 COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CauseFixing assemblyPrimarychargingassemblyDevelopingassemblyCopy paperPhotosensitivedrumChecksPress the Copy Start key whilekeeping the copyboard coveropen, and turn off the powerswitch while copy paper is movingthrough the feeding assembly. Atthis time, does the copy imagebefore moving through the fixingassembly have white spots orwhite lines?Clean the charging wire, grid wire,and shielding plate of the primarycharging assembly. Is the problemcorrected?Is the developing cylinder coatedwith an even layer of toner?Use fresh copy paper. Is theproblem corrected?Are there scratches on the surfaceof the photosensitive drumcorresponding to the problem inthe copy image in the peripheraldirection?Step12345YES/NONOYESNOYESYESAction1. Clean the inlet (upper,lower) of the fixingassembly.2. Check the upper rollerof the fixing assembly.3. Check the take-upmechanism (cleaning)for the web.4. Clean the separationclaw.Clean the partsthoroughly with alcohol.If the dirt cannot beremoved, replace thecharging wire.Check the blade edge ofthe developing assemblyfor paper lint.The copy paper may bemoist. Advise the useron the correct method ofstoring paper.Be sure to find out thecause of the scratches,and then replace thephotosensitive drum.Cont’d
