Samsung CLX-8640ND - Install Black Imaging Unit; Black Imaging Unit Is Not Compatible. Check Users Guide; Imaging Unit Failure: #C3-5711. Call for Service; Imaging Unit Failure: #C3-5712. Call for Service

4.Troubleshooting
►ErrorCode
C3–5410
C3–5414
C3–5510
►Errormessage
Installblackimagingunit.
BlackImagingUnitFailure:#C3-5414.Installblackimagingunitagain
Blackimagingunitisnotcompatible.Checkusersguide
►Symptom
Blackdrumunitisnotinstalled./Themachinecan’treadthechargerresistancevaluefromtheblackdrumunit./
Blackdrumunitisnotcompatible.
►Troubleshootingmethod
1)Openthefrontcover.
2)Removethewastetonercontainer.
3)Openthesidecover.
4)Removetheblackdrumunit.
(3.2.1.DrumUnit
)
5)Installthenewblackdrumunit.
6)Installthewastetonercontainer.
7)Closethefrontcover.
►ErrorCode
C3–5711
C3–5712
►Errormessage
ImagingunitFailure:#C3-5711.Callforservice.
ImagingunitFailure:#C3-5712.Callforservice.
►Symptom
ThedataofCRUMisnotdetected.
►Troubleshootingmethod
1)Openthefrontcoverandsidecover.
2)Removethewastetonercontainer.
3)Checkiftheblackdrumisinstalled.
4)Removeandreinstalltheblackdrumunit.
5)Iftheproblempersists,checkthatthedrummodularjackiscontaminatedordeformed.
6)Replacetheblackdrumunitwithnewone.
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