Samsung SL-M4580FX - Page 226

4.Troubleshooting
3)HorizontalBlackBand
Description:Darkofblurryhorizontalstripesoccurintheprintingperiodically.
ProbableCauseSolution
Thepaperisdirtyornotthepropertype.Replacethepaper.
Thepaperpathiscontaminatedbytonerresidue,debrisetc.Cleanthepaperpath.
Thecontactterminaloftheimagingunitisbad.
1)Cleanthecontactterminaloftheimagingunit.
2)Replacetheimagingunit.
Thesurfaceoftransferrolleriscontaminatedorwornout.Replacethetransferroller.
TheLSUwindowiscontaminated.
1)CleantheLSUwindow.
Thepressurerollerorheatrollerinfuserunitdefective.
1)Turnthemachineoff.
2)Removeandreplacethefuserunit.
3)Turnthemachineon.
WARNING
Donottouchthefuserunitwhileitishot.
HVPSterminaliscontaminated.Cleanthecontaminatedterminal.
TheoutputfromtheHVPSisabnormal.ReplacetheHVPSboard.
NOTE
RollerPeriodforHorizontalProblem
RollerPeriodReplacementUnit
Chargeroller12.2mm
OPCdrum30.0mm
Developingroller19.9mm
Supplyroller17.9mm
Imagingunit
Pressureroller17.5mmFuserunit
Transferroller9.2mmTransferroller
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