Samsung CLX-8640ND - Motor Failure: #A1-4310. Turn off then On. Call for Service if the Problem Persists

4.Troubleshooting
►ErrorCode
A1–4310
►Errormessage
MotorFailure:#A1-4310.Turnoffthenon.Callforserviceiftheproblempersists
►Symptom
ITBengagemotordoesnotoperatenormally.
►Troubleshootingmethod
1)EnterSVCmode.SelecttheT1engagemotortest.(Diagnostics>EngineDiagnostics>EngineTestRoutines>
100–0080)
Pushthestartbuttonandcheckthemotoroperation.
2)Ifthemotorisoperational,
a)Openthesidecover.CheckiftheITBT1Couplerpressureleverispushednormallyasshownbelow.
b)Ifthemotorisstoppedafter3timesoperation,checkthefollowing.
•CheckiftheT1engageDCmotorconnectorisconnectedcorrectly.
•Checkifthephoto-sensor(0604–001415)inITBunitiscontaminatedorassembledcorrectly.
c)RemovetheITBunit.CheckiftheITBT1Couplerisrotatedcounterclockwisesmoothly.
3)Ifthereisamotornoiseorthemotorisnotoperationalnormally,checkthefollowing:
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