Samsung CLX-8640 series - Toner Cartridge Failure: #C1-4711. Call for Service; Toner Cartridge Failure: #C1-4712. Call for Service

4.Troubleshooting
►ErrorCode
C1–4711
C1–4712
►Errormessage
TonerCartridgeFailure:#C1-4711.Callforservice
TonerCartridgeFailure:#C1-4712.Callforservice
►Symptom
ThedataofCRUMisnotdetected.
►Troubleshootingmethod
1)Openthefrontcover.Checkifthecyantonercartridgeisinstalled.
2)Removeandreinstallthecyantonercartridge.
3)Iftheproblempersists,checkifthetonercartridgemodularjackiscontaminatedordeformed.
4)Replacethecyantonercartridgewithnewone.
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