Samsung MultiXpress M537x series - Users Guide; ADVANCED (ADMINISTRATOR’S GUIDE)

4.Troubleshooting
►ErrorCode
S3–3121
►Errormessage
Scannerlockedoranotherproblemoccurred.
►Symptom
Scannermoduledoesnotmove.
►Troubleshootingmethod
1)OpentheDSDFunit.
2)Checkifthescanlockingswitchisinlockstatus.Releaseit.ClosetheDSDFunit.
3)Removetherearcover.Checkiftheconnectoronthemainboardisconnectedcorrectly.
4)Removethescanglass.
5)Checkifthehomepositionsensorcableisconnectedcorrectly.
6)Iftheproblempersists,replacethemainboard.
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