4.Troubleshooting
3)Contaminationonbackofpage
•Description:Thebackofthepageiscontaminated.
CauseandCheckPointSolution
Dirtyregistrationroller,pressureroller,feedroller,etc.
Anydirtyrollersthroughthepathofthepaper.
Identifytherollerwhichmaycausetheproblemby
comparingtheperiodofthecontaminationonimageswith
thesizeofrollers.Cleananydirtfromtherollerorreplace
thedirtyroller.
Checkifthetransferrollerisdamagedorcontaminated.Replacethetransferrollerandtestagain.
Checkifpapertransferbeltisdamagedorcontaminated.ReplacetheITBunitandtestagain.
4)DarkorBlackimage
•Description:Theblackpageisprintedout.
CauseandCheckPointSolution
NochargingvoltageintheHVPS.ChecktheconnectingstatebetweentheMainPBAand
HVPS.Reconnecttheharness.
Poorcontactbetweentonercartridgeandsetcontacts.Cleanthecontactsasnecessary.Replaceanydeformed
ordamagedcontacts.
HVPS1isdefective.ReplacetheHVPS1.
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