Ricoh B039 - Electrical Component Defects; Sensors

ELECTRICAL COMPONENT DEFECTS
B039/B040/B043 4-8 SM
4.2 ELECTRICAL COMPONENT DEFECTS
4.2.1 SENSORS
Component CN Condition Symptom
Open
The Paper Jam message will appear whenever
a copy is made (paper hasn't reached the
sensor).
Registration
312-2
(IOB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
Open
The Paper Jam message will appear whenever
a copy is made except for 1st and by-pass tray
feeding.
Upper Relay
312-5
(IOB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
Open
The Paper End indicator lights when the 1st
paper tray is selected, even if there is paper in
the tray.
Upper Paper End
314-2
(IOB)
Shorted
The Paper End indicator does not light when
the 1st paper tray is selected, even if there is no
paper in the tray. The Paper Jam message will
appear whenever a copy is made from the 1st
paper tray.
Open
The Paper Jam message will appear whenever
a copy is made from an optional paper tray unit.
Lower Vertical
Transport
316-2
(IOB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
Open
The Paper End indicator lights when the 2nd
paper tray is selected, even if there is paper in
the tray (B040/B043 models only).
Lower Paper End
317-6
(IOB)
Shorted
The Paper End indicator does not light when
the 2nd paper tray is selected, even if there is
no paper in the tray. The Paper Jam message
will appear whenever a copy is made from the
2nd paper tray (B040/B043 models only).
OpenBy-pass Paper
Size
311-
1,2,4,5
(IOB)
Shorted
The CPU misdetects or is not able to detect the
size of the paper set in the bypass tray, causing
possible misfeeds when feeding from this tray.
Open
The Paper End indicator lights when the bypass
tray is selected, even if there is paper in the
tray.
By-pass Paper
End
311-7
(IOB)
Shorted
The Paper End indicator does not light when
the bypass tray is selected, even if there is no
paper in the tray. The Paper Jam message will
appear whenever a copy is made from the
bypass tray.
Open
The Paper Jam message will appear whenever
a copy is made (paper hasn't reached the
sensor).
Exit
331-2
(IOB)
Shorted
The Paper Jam message appears even if there
is no paper at the sensor.
OpenToner Density
325-3
(IOB)
Shorted
SC390 is displayed.