Gestetner A193 Service Manual page 320

DETAILED DESCRIPTION
3.3 OVERALL ELECTRICAL CIRCUIT
Copier IOCSS
Driver
The lift motors, clutches, and tray heater are directly controlled by the copier
through the paper tray unit drive board. The sensor signals are directly sent
to the copier.
The power for the paper feed motor and lift motors is supplied through the
tray cover switch.
When the bank connector is connected to the copier IOCSS board, the bank
connection signal to the copier is grounded. Then the copier detects that the
paper tray unit is connected.
(G697)
Paper Tray Unit
Drive Board
+24
M
V
Bank Connection
8-8
Tray Cover Switch
Sensors
Tray Heater
Board
Sensors
G697O501.wmf
SM