4.AlignmentandTroubleshooting
4.1.4.PeriodicDefectiveImage
Ifanimagedefectsappearsatregularintervalsontheprinted-paper,itisduetoafaultyordamagedroller.Refertothetable
belowandchecktheconditionoftheappropriateroller.
RollerPeriod(mm)PhenomenonDefectivepart
1PressureRoller22mmBackground
2HeatRoller24.5mmBlackspotandimageghost
Fuser
3ChargingRoller8.5mmBlackSpotandlineandperiodicband
4OPCDrum24mmWhiteandBlackSpots
5DevelopingRoller12mmWhitespot,Horizontalblackband
6SupplyRoller11.3mmPeriodicBandbylittledifferenceofdensity
TonerCartridge
7TransferRoller8mmGhost,DamagedimagebyabnormaltransferTransferroller
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