Control Circuit; Block Diagram Of Circuits - Acroprint ES700 Service Manual

7-1. Control Circuit

The control circuit consists of the following:
Control PCB Ass'y
• CPU
• LCD
• Setting switch
• Reset switch
• Sensor circuit
• Encoder circuit
• CR motor driver circuit
• Print Head pin driver circuit
• Power failure detector circuit

7-2. Block Diagram of Circuits

CR motor driver
circuit
Print Head pin
driver circuit
CR encoder/
Home position
sensor circuit
Paper Sensor/ Key
Top circuit
LCD
P30,31
2
P20
P80-83
P90-93
9
CPU
P10,12
2
P53
1
P01,02
2
7-2
P60,62
Setting switch
3
RESET
Reset switch
1
P00
Power failure
1
detection circuit