The 35-Mm Uneven Image Density Due To The Periodic Deflection; Uneven Image Density At 95 Mm Of Paper Leading Edge; In Case That The Paper Setting For The Poor Image Is"Thin Paper" - Canon imageRUNNER ADVANCE C5045 Series Service Manual

The 35-mm uneven image density due to the periodic deflection
ofthedevelopingcylinder
[Occurrencearea]
Developingcylinder
[Cause]
IncasethatthedurableadvancedDevelopingAssemblyisusedunderthehightemperature
and high humidity environment, the slight periodic deflection on the developing cylinder may
occur.Asaresult,sincethegapbetweenthedevelopingcylinderandthedrumbecomes
uneven,theunevenimagedensityinacycleof35mmduetoadevelopingfailuremayoccur.
[Occurrencecondition]
IncasethatthedurableadvancedDevelopingAssemblyisusedunderthehightemperature
andhighhumidityenvironment.
Thisphenomenontendstooccur,whenasolidimageorahalftoneimageiscopied.
[Remedy]
AdjustmentofthedevelopingACbiasmaximumvalue(COPIER>OPTION>IMG-FIX>ADJ-
VPP)<Level2>
Theapplicableservicemodesettingvalueissetto"-1."Ifadefectisnotimproved,checkthe
imageswithloweringthesettingvalueonestepbyonestep.
6

About 35mm
F-6-9 F-6-9
6 
UnevenImageDensityat95mmofPaperLeadingEdge
[Occurrencearea]
FixingUnit
[Cause]
Usually,thepaper,whichpassedtheFixingUnit,isfedtotheInnerFeedRolleralongwith
theseparationguide.However,whenthinpaperisused,sincetheelasticityofthepaperis
low,thereisapossibilitythatthepapermaybepulledbytherollerifthepaperleadingedge
reachestheInnerFeedRoller.
As a result, since the paper, which met the separation guide, comes floating, the nip angle of
theFixingUnitchanges.
Forthisreason,adensitychangemayoccurataround95mmfromtheimageleadingedge.
[Occurrencecondition]
Incasethatthesolidimageiscopiedonthethinpaperunderthehightemperatureandhigh
humidityenvironment
[Remedy]
Pleaseperformthefollowingsteps.
IncasethatthePaperSettingforthePoorImageis"ThinPaper"
SettingoftheITOPtemperatureinthinpaper(COPIER>OPTION>IMG-TR>FXS-TMP5)
<Level2>
Setthesettingvalueoftheapplicableservicemodeto"-1."Ifnotimproved,setthesetting
valueto"-2."
6-9
About 95mm
F-6-10 F-6-10
6-9