Samsung CLX-8640 series

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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.

Samsung CLX-8640 series - Page 406