Ricoh M001 Service Manual page 106

General Troubleshooting
CN Component
Tray1 Paper end
14-17
sensor
Remaining paper
14-20
sensor 1
Remaining paper
14-23
sensor 2
14-27 Toner End
M001
Condition
The Paper End indicator lights even if
Open
paper is placed in the 1st paper tray.
The Paper End indicator does not light
Shorted even if there is no paper in the 1st
paper tray.
Open
The machine cannot determine the
paper near-end condition properly.
Shorted
Open
The machine cannot determine the
paper near-end condition properly.
Shorted
Toner near-end (toner end) is not
Shorted
detected.
Low The add toner message is displayed.
4-28
Symptom
SM