35-Mm Pitch Ghost Due To Toner Deterioration; In Case That Paper Setting For The Poor Image Is "Heavy Paper" - Canon imageRUNNER ADVANCE C5045 Series Service Manual

Thesettingvalueoftheapplicableservicemodeissetto"+2."Thesettingvalueissetto+4,
Ifnotimproved.
InCasethatPaperSettingforthePoorImageis"HeavyPaper"
1)Targetcurrentsettingofdischargecurrentcontrol(COPIER>ADJUST>HV-PRI>DIS-TGM2/
TGC2/TGK2)<Level2>
Thesettingvalueoftheapplicableservicemodeissetto"+2."Ifnotimproved,thesetting
valueissetto+4.
2)AdjustmentofelectrostaticchargeACcurrent(COPIER>ADJUST>HV-PRI>OFSTACM2/
OFSTACC2/OFSTACK2)<Level1>
Thesettingvalueoftheapplicableservicemodeissetto"+2."Thesettingvalueissetto+4,
Ifnotimproved.
[Notesaboutremedy]
A drum life will be influenced if the 2nd service mode (adjustment of electrostatic charge AC
current)ischanged.
Forthisreason,pleasedonotsetthesettingvalueto+4ormoreatthemaximum.
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6 
35-mmpitchghostduetotonerdeterioration
[Occurrencearea]
Developingcylinder
[Cause]
Incasethattheimagepattern,whichhasextremeshadingdifferences,iscopiedunderthe
hightemperatureandhighhumidityenvironment,thedeteriorationtonerofapreviousimage
mayadhereonadevelopingcylinder.Forthisreason,theinversionresidualimage(negative
ghost)ofthepreviousimagemayoccurinthenextimage.
[Occurrencecondition]
Incasethattheimagepatternwithextremeshadingdifferencesiscopied(thehalftoneimage
wascopiedimmediatelyafterthesolidimage)
[Remedy]
1)TargetedvaluesettingofATRcontrol(COPIER>ADJUST>DENS>P-TG-Y/M/C/K)<Level2>
Theapplicableservicemodesettingvalueforthecolor,whichthepoorimagehasoccurred,
issetto"-1."
2)Aftercyclingthepowerofthemainunit,copy8A3solidimages.
Asaresult,iftheimageonthe8thsheetischeckedandadefectisnotimproved,please
moveontothefollowingstep.
3)Lowerthesettingvalueoftheapplicableservicemodeby1step.
4)Aftercyclingthepowerofthemainunit,copy8A3solidimages.
5)Checktheimageonthe8thsheet.
6)Ifapoorimageisnotimproved,repeatStep3)-5).
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F-6-8 F-6-8
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