11-110CHAPTER 11 TROUBLESHOOTINGCOPYRIGHT © 1997 CANON INC. CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)3 Fixing/delivery assembly4 Cleaning assemblyCauseSeparationclaws (deliveryassembly)Upper/lowerfixing rollerPaper guideNipCleaningbeltSheetDeliveryleverDeliverysensor(PS11)Deliverymotor (M6)Leading edgemarginChecksAre the separation claws worn ordeformed?Is the upper/lower fixing rollerdeformed or scratched?Is the paper guide soiled withtoner?Is the lower roller pressure (nip)within standard?Is the cleaning belt taken upproperly?Is the sheet in the deliveryreversing assembly normal?Does the delivery detecting levermove smoothly?Is the delivery sensor normal?(See the instructions on how tocheck photointerrupers.)Is the delivery roller 2 rotatingsmoothly?Step123456789YES/NOYESYESYESNONONONONONOYESAction1. Replace theseparation claws.2. If dirt is found, cleanit with solvent.Replace the roller.Clean it with solvent.Adjust it.Check the cleaningassembly/cleaning beltdrive assembly.Re-mount it.Make adjustments sothat it moves smoothly.Replace the sensor.Check the delivery roller 2drive assembly; if normal,replace the delivery motor.Check the leading edge ofthe copies for a margin.Fixing assemblyDelivery assemblyCauseStatic eliminatorCopy paperHigh-voltagetransformer, DCpower supplyPCBChecksIs the static eliminator setsecurely?Try paper of a type recommendedby Canon. Is the problemcorrected?Step12YES/NONOYESNOActionSet the static eliminatorsecurely.Advise the user to userecommended paper.1. Check the high-voltage transformer.2. Check the DC powersupply.
