Chapter 99-29.3 Power Supply9.3.1 Power Supply9.3.1.1 Outline 0011-5770LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / KaserBase MF6560PL / / LaserBase MF6580PLWhen the main power switch (SW1) is turned on, AC power is supplied to the low-voltage power supply circuit in the power supply PCB.The low-voltage power supply circuit supplies +3.3 V, +5 V, and +24 V to operate the machine.+24 V is supplied to the motors, fan, electromagnetic clutch, solenoid, etc. +5 V and +3.3 V are supplied to the DC controller PCB, image processor PCB, anlogprocessor PCB.There are two types of +24 V voltages: +24 V which is normaly supplied from the low voltage power supply and +24 VR which is cut off when the left door isopened. The +24 VR also plays the role of a door open detection signal (DOPEN). This signal allows the CPU to detect that the left door has opened.T-9-1F-9-39.3.1.2 Rated Output of the Power Supply PCB 0011-5771LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / KaserBase MF6560PL / / LaserBase MF6580PLT-9-29.3.2 Protection Function9.3.2.1 Protective Functions 0011-5772LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / KaserBase MF6560PL / / LaserBase MF6580PLPart Name FunctionPower supply PCB Generates DC power from AC power.Main power switch (SW1) Supplies AC power to the power supply PCB.Interlock switch (SW2) Detects opening/closing of the left door and cuts off +24 VR.Output 24V 5V 5VR 3.3V 3.3VRRated output voltage 24V 5.1V 5.1V 3.4V 3.4VOutput voltage tolerance +10%, -5% +3%, -4% +3%, -4% +3%, -3% +3%, -3%Rated output current 4.5A 0.3A 0.7A 2.4A 0.8AOvercurrent protectiontrigger current7.0A 4.0A 2.0A 3.7A 2.0AOvervoltage protectiontrigger voltage32.5V 8.0V 8.0V 5.5V 5.5VLow-voltage powersupply circuit+3.3Vcircuit+5VcircuitPower supply PCB+24VcircuitLaserscanner unitInterlockswitch (SW2)Main motorControl panelNCU PCB*1Mojularjack PCB*1ADFADF motorADF sensorsNetwork PCB*2DCcontrollerPCBImageprocessorPCBReader motorSensorsClutchesFanSolenoidsSensors+5VR+24VR+3.3VR+5V+3.3V+5VR+24VRRelay PCB+3.3VR+24VRCassetteunit*3+3.3VR+24VR+24VR+24VU+24VADF solenoids +24V+3.3VR+3.3V+5V+3.3V+5V+5VS+5V+24V+5V+3.3VS+5VS*1 : Only if equipped with Fax functions.*2 : Only if equipped with Network functions.*3 : OptionCS hp sensorAnalogprocessorPCBCS unit+24V+3.3V+5VReader unit+3.3VR+24VR+24VR+24VRModemPCB*1+3.3V+5VP1NFF2F1To NCU PCB+5VR+24VR+3.3VRSW1Download Free Service Manual And Resetter Printer at http://printer1.blogspot.com
