Electrical Component Description - Gestetner A193 Service Manual

COMPONENT LAYOUT

2.3 ELECTRICAL COMPONENT DESCRIPTION

Symbol Name
Motors
M1 Paper Feed
M2 Upper Lift
M3 Lower Lift
Sensors
S1 Upper Paper End
S2 Lower Paper End
S3 Upper Tray Upper Limit Detects when the paper in the upper tray is at the
S4 Lower Tray Upper Limit Detects when the paper in the lower tray is at the
S5 Upper Relay
S6 Lower Relay
S7 Upper Paper Size
S8 Lower Paper Size
Clutches
MC1 Upper Paper Feed
MC2 Lower Paper Feed
MC3 Upper Relay
MC4 Lower Relay
PCBs
PCB1 Paper Tray Unit Drive
Optional tray heaters are also available.
(G697)
Function Motors
Drives all the rollers.
Lifts and lowers the upper tray bottom plate.
Lifts and lowers the lower tray bottom plate.
Informs the CPU when there is no paper in the
upper tray.
Informs the CPU when there is no paper in the
lower tray.
correct height for paper feed.
correct height for paper feed.
Detects misfeeds and controls the upper paper
feed clutch off timing.
Detects misfeeds and controls the lower paper
feed clutch off timing.
Determines what paper size is in the upper tray.
Determines what paper size is in the lower tray.
Starts paper feed from the upper feed tray.
Starts paper feed from the lower feed tray.
Starts the upper relay roller.
Starts the lower relay roller.
Interfaces the sensor signals to the copier and
transfers the magnetic clutch, heater, and motor
drive signals from the copier.
8-4
Index.
No.
2
5
5
16
9
14
11
15
10
12
13
3
6
4
7
1
SM