Chapter 99-3F-9-29.2.1.2 Hegh-Voltage Power Supply Circuit 0006-2994The high voltage output circuit is built into the DC controller PCB.The CPU on the DC controller PCB sends instructions for the generation of the following high voltages at specifictiming:- primary charging roller bias (AC voltage + DC negative voltage)- developing bias (AC voltage + DC negative voltage)- transfer charging roller bias (DC positive voltage or DC negative voltage)AnalogprocessorPCBLaserscanner unitSolenoidsMain motorControlpanel PCBNCU PCB *2ADF unit *1ADF motorADF sensorsReader unitslide detectingswitchReader motorSensorsP1NFPower supply PCBF2F1Low-voltage powersupply circuit+3.3 V circuit+ 5 V circuit+12 V circuit+24 V circuit +24V+12V+5VS+5V+3.3VS+3.3VF101+3.3V+8V+3.3V+5V+24V+24V+24V+3.3V+5VSModular jackPCB *2Contact sensorSensor PCB+5V+8V+24V+3.3V+3.3VS+12V+5V+24V+5V*1 : Only if equipped with ADF functions.*2 : Only if equipped with fax functions.DC controller PCB• Cassette paper sensor• Paper leading edgesensor• LGL paper sensorFanManual feed traypaper sensor+3.3V+3.3V+24V+24VPrinter controllerPCB+3.3VS+5VS+24V+5V+3.3VImage processor PCBToner supply coveropen/closeswitch+24VWaste tonerfull sensor+3.3V +3.3VSensor relayPCB• Humidity sensor• Toner bottle sensor+3.3V Delivery Sensor
