Samsung CLX-8640ND - Error Code S3-3211; Scan System Failure #S3-3211: Turn off then on

4.Troubleshooting
►ErrorCode
S3–3211
►Errormessage
ScanSystemFailure#S3-3211:Turnoffthenon.
►Symptom
DADFboardisnotconnectedorcommunicationerroroccursbetweenDADFboardandMainboard.
►Troubleshootingmethod
1)Turnoffthemachinethenon.Iftheproblempersists,checkthefollowing.
2)Turnthemachineoffagain.
3)Removethescanrearcover.Checkiftheconnectoronscanjointboardisconnectedcorrectly.
4)Removetherearcover.Checkiftheconnectoronthemainboardisconnectedcorrectly.
5)RemovetheDADFrearcover.CheckiftheconnectoronDADFboardisconnectedcorrectly.
(Referto3.3.21.3DADFBoard.)
6)IftheconnectionisOK,replacetheDADFboard(JC92–02509A).
7)IftheproblempersistsafterreplacingtheDADFboard,replacethemainboard(JC92–02516A).
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