Electrical Component Defects [All Models]; G112/G113/G116/G094/G095/G091 Ii Sm; Sensors; Switches [All Models] - Ricoh G112 Service Manual

4.3 ELECTRICAL COMPONENT DEFECTS [ALL
MODELS]

4.3.1 SENSORS

Component
Paper Exit
Paper Overflow
Registration
Remaining paper
sensor 1
Remaining paper
sensor 2
Toner End
NOTE: The CN numbers describe the connector number on the engine board.

4.3.2 SWITCHES [ALL MODELS]

Component CN
272-1,3
(PSU 120 V)
Main
270-1,2
(PSU 230 V)
Front Cover
9-1
Safety
Rear Cover 9-3
Safety 5-3
NOTE: The CN numbers describe the connector number on the engine board
(except for the main switch).
SM

ELECTRICAL COMPONENT DEFECTS [ALL MODELS]

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
Condition
Open
Shorted
Open
Shorted
Open
Shorted
4-7
Symptom
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.
The machine cannot determine the paper
near-end condition properly.
Toner near-end (toner end) is not detected.
The add toner message is displayed.
Symptom
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.
G112/G113/G116/G094/G095/G091