Service Guide 177Wiring DiagramWiring diagramFace-up trayopen switchFlex cableSensor/MicroswitchNew NC2135 ConnectorFuser Lower RollerThermistorL-Side Color Registration AdjustmentAOUT3R-Side Color Registration AdjustmentAOUT2Eject Sensor HeaterShutter ClutchSHUTTERRegistClutchRSNSPOWERCUIFPSIZE HVOLTJODENFSENSTR1OPP5P6REGBELTHETDUPLEXK73 Main BoardCPUFLPARTTEMPSHUTTERDCLFCOVER DUCOVPENDFOHP1FFPOSPAPWIDM7L BoardM7R BoardFAN1FAN2Front/RegistrationMotorCOVOPNRight Side CoverOpen switchUpper CoverOpen Microswitch(+38V cut)SW1Y71 HeadRelay BoardTNRKTNRYSTUCK POWERPANEL MPOW2 CPOW2YPOW2KPOW2TNRMTNRCFace-down Stack Full SensorTray liftMotorLoading ClutchPickup ClutchCarrier SensorPaper Width SensorOffsetMotorFeed(Hopping)MotorOffset Zero SensorC73I/F BoardA73 Retard Sensor BoardLifter SensorLoading SensorBeltFuseI DPOSKI DPOSYI DPOSMI DPOSCN71 Boardpart of main motor assemblyD2 GreenD2 YellowNBLTAC InputFan 3 (off-the-shelf)Fan 2 (power eject)Fan 1 (PU)works as stepperPENDPNENDOffset PE SensorOffset SensorSTDUCOVJOBOFFOPTNKPOWK1200Y1200M1200MPOWYPOWIDRCLHOPFFFRPUCLC1200CPOWFACEKLEDHEADLEDHEADLEDHEADLEDHEADY M CFEEDPAPSIZ3-0Paper WidthSensing BoardHOPLIFTMAILHOP(INSNS1)HUMTEMP R71BoardPAPIN(INSNS2)PSWR(WRSNS)TNRFULGEAREDK IDUMotorJOBOFFSJOBOFFPEconnected to next tray(no tray in lowest section)connected to trays of up to 5th,including 2nd tray(does not exist in the lowest)2nd Tray/3rd TrayLarge-Capacity TrayTray liftMotor Feed(Hopping)MotorCarrier Clutch(does not existin the lowest)Loading ClutchV73 BoardPaper EmptyPaper NearEmptyCover Opem SWCarrier SensorPaper WidthSensing BoardT9 BlueT3 WhiteT4 RedT5 RedT8 RedT2 BlueT6YellowLifter SensorLoading SensorRetard SensorBoard A73T2 WhiteT10 RedT1 BlueT1 WhiteT7 WhiteT11T11(does not existin the lowest)DUP-In SensorDUP Middle SensorDUP Front SensorDUPDUP Front Clutch DUP Rear ClutchD3 BlueV73 BoardDuplexD1 BlueD1 WhiteBeltMotorP1 YellowP1 WhiteP2P2 YellowP3 WhiteP2 BlueP2 RedP4P4 RedP4 YellowP4 Blue/WhiteP6 BrownP7 BlueP7 GrayP7P8P7 Grayattached tosensorP9P9 BlackP10P10P10 BrownP11P11P11 BlueP11 WhiteP21P21P22P22P12P12 P12 YellowP13P13P13 RedP14P14 P14 YellowP14 RedP15 RedP16 BrowmP17 Redattached to motorP16P16P5 RedP18 BlackP19P18P17P20P18 YellowP18 RedP18 Blueattachedto clutchP19 WhiteP1P19 RedP20 WhiteP20 YellowP24 to P31P23Y1 WhiteY2 BlueY1 WhiteS1 GrayHeater UnitFuser UpperThermistorSensorFuseTHERM1THERM2NFULHRTMPLBRTMPCN8CN9CN2CN1High-VoltagePower SupplyCN5CN4-2,6-2CN4-1,6-1ACSWS1Low-VoltagePower Supplyattached to fanattached to fan*1attached to fanattached to fanattached to fanFuserMotorFDWPAPJam SensorP2 WhiteP4 GreenFan 0 (power-on)Face-Down SolenoidEject SolenoidP33 WhiteP33 BlueTemperature SensorP33 GreenFan 0 (power eject)S2DUP_PAPT6BlueWhiteconnected to next tray(no tray in lowest section)Tray liftMotor Feed(Hopping)MotorCarrier ClutchLoading ClutchV73 BoardCover Opem SWCarrier SensorPaper WidthSensing BoardT9 BlueT3 WhiteT4 RedT5 RedT8 RedT2 BlueT6YellowLifter SensorLoading SensorRetard SensorBoard A73T2 WhiteT10 RedT1 BlueT1 WhiteT7 WhiteT11T11*1T6BlueWhiteBlackRemoved-Edge SideWhiteBlackDUP Rear SensorY6Y5Y3Y4P24 to P31Y IDUMotorM IDUMotorC IDUMotorP17 YellowPaper EmptyPaper NearEmptyTray 1PickLTD/LTAConnectorLTD/LTAConnectorContact points forDrum Contact AssembliesBlack BlackBlackY4 GreenY3 YellowY3 RedY5 BlownX71 BoardP24P28P25P29P26P30P27P31OperatorPanelP270725-74+5 VDC loop in thiswiring harness+5 VDC loop in thiswiring harness+5 VDCloop in thisribbon cableInterconnectlocated byrear hingePower harness