Samsung Xpress C480FN - Page 129

4.AlignmentandTroubleshooting
•Checkifthefuserismelted.
-Procedure
a)Removethefuserunitfromtheset.
b)Checkifthefusergear,bush,rolleraremelted.Ifyes,replacethefuserunit.
-Ifthefuserismeltedbutthethermostat,thermistor,andheaterarenormal,checkthesurfaceofthe
thermistor.
a)Ifthesurfaceofthethermistorisdefective,replacethefuserunit.
b)Ifthesurfaceofthethermistorisnormal,replacethefuserunit,SMPSboard,andmainboardall
together.
5)Checkiftheinputvoltageisnormal.
6)Ifthecheckitemforstep1~5isnormal,replacethefuserunit.
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