Samsung CLX-8640ND - Page 406

4.Troubleshooting
►ErrorCode
U1–233x
►Errormessage
FuserUnitFailure:#U1-233x.Turnoffthenon.
►Symptom
Thetemperatureoffuserunitislow.(LowHeatError)
►Troubleshootingmethod
CAUTION
ThetemperaturegetshotaroundtheFuserUnit.T opreventinjury,makesuretheFuserUnitareaiscoolbefore
performingthisprocedure.
1)Turnthemachineoffthenon.
2)Turnthemachineoff.Re-installthefuserunit.Thenturnthemachineon.
3)Iftheproblempersists,removethefuserunit.
4)Checkifthepaperiscurledonthefuserbelt.
5)Ifyes,replacethefuserunit.Ifnot,checkthefollowings.
a)Checkiftheinputvoltageisnormal.
b)Remove8screws.Removeleft/right/topcover.
c)Remove8screws.Removethebracket.
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