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1、佳能2020i复印机维修代码（Canon2020icopiermaintenancecode）Canon2020IcopiermaintenancecodeE000thermistor(THI)THIoutput,lessthan100degreesafter100secondsinthepowerONHeater(H1)Heatinsurance(FU2)SSRE001DCcontrollerPCBTheoutputofthethermistorTHIismorethan200degreesSSRDCcontrollerPCBTheE0
2、02thermistordoesnotreach170degreesin100secondsaftertheTHIreaches100degreesTheheaterdoesnotreach175degreesin40secondsaftertheTHIreaches170degreesThermalinsuranceDCcontrollerE003preheattheTHIoutputtobelow150degreesTheE010mainmotor(M2)maintainsthemainmotor(DMDEAD)as"1"for1se
3、condafterthemainmotordrivesignalisgeneratedMotordriverPCBE022DCcontrollerPCB,afterselectingthedeveloper,theCDunitremainsengagedfor1.6seconds,andthedevelopmentengagementsensor(PS3)is"1""ThedeveloperengagesthesensorDCcontrollerPCB,andtheblackdeveloperremainsengagedfor1.6sec
4、ondsaftertheCDunitisselectedE030counter(CNT1),suchaswhenthecounterON,thecounterdriveletteras"0"isnormal.AswhenthecounterOFF,thecounterdrivesignalis"1"isnormalDCcontrollerPCBTheE202exposuresystemmotor(PM1)failstocompletetheinitialmotionoftheexposuresystemwithin10secondsaft
5、erthepowerONOriginalpositionofexposuresystemThesensorwillshownoerrorcodeinthefollowingcase,butallkeysontheoperatingpanelarelocked,andtheAEretrogradeactionisnotcompletedwithin3seconds,andtheretrogradeactionfailedtocompletewithin5secondsofexposureTheE204exposuresystemmotor(
6、PM1)failstocompletetheinitialmotionoftheexposuresystemwithin10secondsafterthepowerONDCcontrollerPCBTheoriginalpositionsensoroftheexposuresystemdoesnotmoveforwardwithin5secondsofexposureTheE210lens,theoriginalpositionsensor(PS4),beginstheinitialrotationandtakesthelensafter
7、20secondsLensmotor(M3)TheoperationofthecameracablelocationtotheDIRECTcopylocationhasnotbeencompletedAftertheDCcontrollerPCBpressestheCOPYSTARTkeyfor15seconds,thesettingofthecopyrateoperationhasnotbeencompletedE220exposurelamp(LA1)atthesametimeastheexposurelampLAON,ONdidno
8、tbecome"1",attheexposurelampOFF,whileLAONdidnotbecome"0""Thereisacommunicationerrorbetweentheact
