Samsung ProXpress M4030 Series - Error #S7-2110; Fuser Unit Failure: #S7-2110. Turn off then On. Call for Service if the Problem Persists; Error: #S6-3234; Failed Connection to WPS. Try Again or Set up Other Wireless Connection; Error: #S6-3235; Wi-Fi Direct Is Not Ready. Turn off then On. Call for Service if the Problem Persists; Error: #S6-3236; Failed to Connect to Wi-Fi Direct. Turn off Your Mobile Device and Turn It

4.Troubleshooting
►ErrorCode
S6-3234
►Errormessage
Error:#S6-3234/FailedconnectiontoWPS.Tryagainorsetupotherwirelessconnection
►Symptom
WPSconnectiontoAPisfailed.
►Troubleshootingmethod
1)RetrytheconnectionwithWPSbutton.
►ErrorCode
S6-3235
S6-3236
►Errormessage
Error:#S6-3235/Wi-FiDirectisnotready.Turnoffthenon.Callforserviceiftheproblempersists
Error:#S6-3236/FailedtoconnecttoWi-FiDirect.Turnoffyourmobiledeviceandturniton
►Symptom
Wi-FiDirectlibraryisinitialized.
►Troubleshootingmethod
1)Turnthemachineoffthenon.
2)Changethewirelessnetworksettings.Retryit.
►ErrorCode
S7–2110
►Errormessage
Error#S7-2110/FuserUnitFailure:#S7-2110.Turnoffthenon.Callforserviceiftheproblempersists
►Symptom
Heatcontrolrelayoperationisabnormal.
►Troubleshootingmethod
1)Turnthemachineoff.Re-installthefuserunit.Thenturnthemachineon.Istheerrormessageisdisappeared?
2)Iftheproblempersists,turnthemachineoffandremovethefuserunit.
a)Checkifthefuserconnectorisconnectedproperly.
b)Checkiftheinputvoltageisnormal.
c)Checkifthethermistoristwistedorcontaminated;andisincontactwiththeHeatRoller.
3)Afterconrmingcontinuityinthefuserconnectorandtheproblemstillexists;orderanSMPSandFuserUnit
andinstallasisnecessary.
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