Samsung SF-76x series - Page 88

4.AlignmentandTroubleshooting
5)Lightimage
Description:Theprintedimageislight,withnoghost.
CheckandcauseSolution
Tonercartridgelifeisexpired.Replacethetonercartridge.
SMPS/HVPSterminaliscontaminated.Cleanthecontaminatedterminal.
TheoutputfromtheSMPS/HVPSisabnormal.ReplacetheSMPS/HVPSboard.
6)DarkorBlackpage
Description:Theprintedimageisdarkorblack.
CheckandcauseSolution
Checkifthehighvoltageterminaliscontaminated.Cleanthehighvoltageterminal.
Thechargingrollerisdefective.Replacethetonercartridge.
TheoutputfromtheSMSP/HVPSisabnormal.ReplacetheSMPS/HVPSboard.
7)UnevenDensity
Description:Printdensityisunevenbetweenleftandright.
CheckandcauseSolution
•Thepressureforceontheleftandrightspringsofthe
transferrollerisnoteven.
•Thespringsaredamaged.
•Thetransferrollerisimproperlyinstalled.
1)Removethetransferroller.
2)Checkifthetransferrollerisdefective.
3)Replacethetransferroller.
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