Ricoh M080, Service Manual

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General Troubleshooting
M080 6-8 SM
6.3.2 ELECTRICAL DEFECTS
Sensors
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The "CN" numbers describe the connector number on the engine board.
CN Component Condition Symptom
5-25 Paper Exit
Open
The Paper Jam indicator will light
whenever a print is made.
Shorted
The Paper Jam indicator lights even if
there is no paper.
5-30 Paper Overflow
Open
The paper overflow message is not
displayed even when a paper overflow
condition exists.
Shorted
The paper overflow message is
displayed.
14-29 Registration
Open
The Paper Jam indicator will light
whenever a print is made.
Shorted
The Paper Jam indicator lights even if
there is no paper.
14-14 Mlt Paper end sensor
Open
The Paper End indicator lights even if
paper is placed in the Mlt paper tray.
Shorted
The Paper End indicator does not light
even if there is no paper in the 1st
paper tray.
14-17
Tray1 Paper end
sensor
Open
The Paper End indicator lights even if
paper is placed in the 1st paper tray.
Shorted
The Paper End indicator does not light
even if there is no paper in the 1st
paper tray.
14-20 Remaining paper Open The machine cannot determine the