Samsung SL-M4080FX - Page 198

4.Troubleshooting
3)HorizontalBlackBand
Description:Darkofblurryhorizontalstripesoccurintheprintingperiodically.
ProbableCauseSolution
Thepaperisdirtyornotthepropertype.Replacethepaper.
Thepaperpathiscontaminatedbytonerresidue,debrisetc.Cleanthepaperpath.
Thecontactterminalofthetonercartridgeisbad.
1)Cleanthecontactterminalofthetonercartridge.
2)Replacethetonercartridge.
Thesurfaceoftransferrolleriscontaminatedorwornout.Replacethetransferroller.
TheLSUwindowiscontaminated.
1)CleantheLSUwindow.
Thepressurerollerorheatrollerinfuserunitdefective.
1)Turnthemachineoff.
2)Removeandreplacethefuserunit.
3)Turnthemachineon.
WARNING
Donottouchthefuserunitwhileitishot.
HVPSterminaliscontaminated.Cleanthecontaminatedterminal.
TheoutputfromtheHVPSisabnormal.ReplacetheHVPSboard.
NOTE
RollerPeriodforHorizontalProblem
RollerDescriptionBandPeriod(mm)Defectivepart
1stPressureroller62.8mm
2ndPressureroller37.7mm
Heatroller77.8mm
Fuserunit
Chargeroller34.5mm
Developerroller37mm
OPCdrum76mm
Supplyroller69.57mm
TonerCartridge
Transferroller47.1mmTransferroller
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