Samsung CLX-8640ND - Toner Cartridge Failure: #C1-3711. Call for Service; Toner Cartridge Failure: #C1-3712. Call for Service

4.Troubleshooting
►ErrorCode
C1–3711
C1–3712
►Errormessage
TonerCartridgeFailure:#C1-3711.Callforservice
TonerCartridgeFailure:#C1-3712.Callforservice
►Symptom
ThedataofCRUMisnotdetected.
►Troubleshootingmethod
1)Openthefrontcover.Checkifthemagentatonercartridgeisinstalled.
2)Removeandreinstallthemagentatonercartridge.
3)Iftheproblempersists,checkifthetonercartridgemodularjackiscontaminatedordeformed.
4)Replacethemagentatonercartridgewithnewone.
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