41316401TH Rev.4 35 /2.9 Cover-OpenWhen the top cover of the printer is open, the cover-open microswitch turns off to cut the highvoltage power and output of not less than 32V. At the same time, the CPU receives CVOPN signalsfor indicating the status of the microswitch to handle the cover-open.When the front cover is open, the microswitch also turns off and the 32V power to the duplex unitis cut. The CPU receives FCOVER signals for indicating the status of the microswitch to handlecover-open.Top covermicroswitchFront covermicroswitchDuplex unitDuplex (16P)FCOVER(3P)High voltage power supply boardHigh voltage power supply unit71K-PCBCPU66577+32V+32V+32V V71-PCBP7, 6P10, 5 COVOPN (2P)HVOLT (16P)DetectionCircuitDetectionCircuitDetectionCircuit
