4.AlignmentandTroubleshooting
-ThermistorShorttest:Afterunpluggingthefuserconnector,connecttheshrotjig.IftheU1–2340error
occurs,themainboardisnormal.Ifnot,replacethemainboard.
4)Checkthethermostat,thermistor,heater.Ifthemesuredresistancevalueisabnormal,replacethefuserunit.
•Thermostattest:Measuretheresistanceforbothterminalsofthethermostat.
-Normal:0~5Ω
-Abnormal:Morethan20MΩ
•Thermistortest
a)Checkifthethermistorcontactstheheatroller.
-Normal:Contact/Abnormal:Non-Contact
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