Canon iR4570 Series Service Manual page 750

Chapter 14
Ref.
[2]
[3]
[4]
<Printer Unit>
Ref.
[1]
[2]
[3]
[4]
[5]
[6]
[7]
14-44
Name
Control panel inverter PCB
Control panel CPU PCB
Control panel key PCB
[1]
Name
Arrestor PCB (100 V)
Cassette 1 size detection
PCB
Cassette 2 size detection
PCB
Cassette size detection relay
PCB
Pseudo CI PCB
BD PCB
NCU PCB
Parts No.
Controls the activation of the LCD
FM2-2753
back light.
FM2-2754 Controls the control panel.
FG6-8939 Controls the keypad inputs.
F-14-23
T-14-27
Parts No.
FM2-2973 Protects against high voltage.
FM2-2770 Cassette 1 size detection
FM2-2770 Cassette 2 size detection
FM2-2771 Cassette size detection relay
FM2-2773 Pseudo CI signal generation
Scanner unit BD signal generation
FM2-0276(iR2230/
2230F/2830)
FM2-0334(iR3530)
FM2-2790 Line switch control
Function
[4]
[3]
[2]
Description