2-3-1 Main PCB
Switchback
conveying
motor
Switchback
eject motor
Feedshift solenoid
Press solenoid
The main PCB (MPCB) consists mainly of the CPU IC2 and motor drive circuit.
The CPU IC2 detects the condition of the switches and controls the motors and solenoids by serially communicating with
the copier.
Main PCB
24 V
Motor
drive
circuit
24 V
Motor
drive
circuit
24 V
24 V
Figure 2-3-1 Main PCB block diagram
CPU
IC2
5 V
24 V
TXD
RXD
Copier
24 V DC
5 V DC
Switchback feed
in switch
Switchback eject
switch
Safty switch
2-3-1
3CP