2.9Cover Opening

When the top cover of the printer is open, the cover open microswitch turns opens to cut off the high- voltage power supply, and outputs which are not less than 32V. At the same time, the CPU receives CVOPN signals indicating the status of the microswitch and performs cover open operations.

 

 

 

 

 

 

 

71K-PCB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU

 

+32V

 

 

 

 

 

 

66577

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Detection

 

 

P10, 5

 

 

 

 

 

 

Circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P7, 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Top cover microswitch

COVOPN (2P)

High-voltage power supply board

HVOLT (16P)

detect

supply unit

powervoltage-High

circuit

 

detect

 

circuit

+32V

FCOVER(3P)

Front cover microswitch

+32V

Duplex (16P)

Duplex unit

V71-PCB

41388601TH Rev.2

34 /

Page 34
Image 34
Sony C9000 service manual Cover Opening