Specifications

4. OVERALL MACHINE CONTROL
The DF CPU monitors the input signals from the sensors and switches, and
energizes the solenoids and the indicator LEDs directly. The belt drive motor
and the inverter motor are controlled by the DF CPU through their respective
driver ICs. The exchanged signals are shown in the tables on the next page.
DF Main Board (PCB1)
RXD
TXD
Copier (PCB1)
Main Board
CPU
ROM
Driver
IC
Driver
IC
TXD
RXD
Feed-out
Motor
Belt Drive
Motor
Solenoids
Indicators
Sensors
Switches
Interface (PCB6)
Board
1 December 1990
8-4