Gestetner A193 Service Manual page 519

COMPONENT LAYOUT
2.3 ELECTRICAL COMPONENT DESCRIPTIONS
Refer to the point-to-point diagram on the waterproof paper for the locations
of these components.
Index
Symbol
No.
Printed Circuit Board
PCB 1 9
Motors
M 1 2
M 2 3
M 3 11
Sensors
S 1 1
S 2 8
S 3 6
S 4 4
S 5 5
S 6 10
S 7 14
S8 15
Switches
SW 1 7
SW 2 12
SW 3 13
A224
Description
LCT Drive
Transport
Paper Feed
Tray Lift
Relay
Paper Near-end 1
Paper Near-end 2
Paper Near-end 3
Paper Size
Lower Limit
Paper End
Upper Limit
Unit Set
LCT Cover
Tray Down
14-4
Notes
Interfaces the sensor signals with the
main machine, and transfers the motor
drive signals from the main machine.
Drives the transfer roller.
Drives the paper feed roller.
Lifts up and lowers the bottom plate.
Detects the leading edge of paper to
determine the paper feed motor stop
timing. Also detects misfeeds.
Detects the amount of paper in the LCT.
Note that these sensors may not be
used, depending on the main machine.
Detects whether A4 size paper or Letter
size paper is being used.
Detects when the bottom plate is at its
lowest position.
Detects the paper end condition.
Detects when the paper stack in the
paper tray is at the correct height to stop
the tray lift motor.
Cuts the dc power line when the LCT is
open.
Cuts the dc power line of the lift motor
when the LCT cover is open.
Lowers the bottom plate.
SM