Samsung ProXpress SL-M4030ND - U1-XXXX (Fuser Error)

4.Troubleshooting
4.7.2.7.U1-xxxx(Fusererror)
►ErrorCode
U1–21xx/U1–23xx
►Errormessage
Error:#U1-2xxx/FuserUnitFailure:#U1-2xxx.Turnoffthenon.Callforserviceiftheproblempersists
►Symptom
Thetemperaturecontroloffuserunitisabnormal.
►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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