Electrical Component Defects; Sensors; Switches - Gestetner G056 Service Manual

ELECTRICAL COMPONENT DEFECTS

4.3 ELECTRICAL COMPONENT DEFECTS

4.3.1 SENSORS

Component
Paper Exit
Paper Overflow
Registration
1st Paper End
1st Paper Height
Toner End
NOTE: The CN numbers describe the connector number on the engine board.

4.3.2 SWITCHES

Component
(PSU 120V)
Main
(PSU 230V)
Front Cover
Safety
Rear Cover
Safety
NOTE: The CN numbers describe the connector number on the engine board
(except for the main switch).
G056/G058
CN Condition
Open
6-B2
Shorted
Open
6-B5
Shorted
Open
16-A2
Shorted
Open
16-A5
Shorted
Open
16-A8
Shorted
High
16-A12
Low
CN Condition
272-1,3 Open
270-1,2 Shorted
Open
9-1
Shorted
Open
9-3
5-3
Shorted
The Paper Jam indicator will light whenever
a print is made.
The Paper Jam indicator lights even if there
is no paper.
The paper overflow message is not
displayed even when a paper overflow
condition exists.
The paper overflow message is displayed.
The Paper Jam indicator will light whenever
a print is made.
The Paper Jam indicator lights even if there
is no paper.
The Paper End indicator lights even if paper
is placed in the 1st paper tray.
The Paper End indicator does not light even
if there is no paper in the 1st paper tray.
Misfeed is indicated when paper supply
runs out.
The machine cannot determine the paper
near-end condition properly.
Toner near-end (toner end) is not detected.
The add toner message is displayed.
The machine does not turn on.
The machine does not turn off.
The Front Cover Open message is not
displayed even if the front cover is opened.
The Front Cover Open message is
displayed even if the front cover is closed.
The Rear Cover Open message is not
displayed even if the rear cover or paper
exit cover is opened.
The Rear Cover Open message is
displayed even if the rear cover or paper
exit cover is closed.
4-6
Symptom
Symptom
SM