Copystar CS-3035 - Main PCB

3B5
2-3-1
2-3-1 Main PCB
Figure 2-3-1 Main PCB block diagram
The main PCB (MPCB) consists mainly of the CPU IC5 and motor drive circuit.
The CPU IC5 detects the condition of the switches and sensors and controls the motors and solenoids by serially
communicating with the copier. The feedshift solenoid (FSSOL) operates with the control signals from the copier.
Feedshift solenoid
Pickup solenoid
Main PCB
Copier
Motor
drive
circuit
Motor
drive
circuit
CPU (IC5)
TXD
RXD
Motors
Switches
and
sensors
Buffer IC12,
IC13, IC14
Paper conveying
motor