Electrical Component Defects - Ricoh Russian-C2a Service Manual

10 August, 2001

7.5 ELECTRICAL COMPONENT DEFECTS

7.5.1 SENSORS
Component
(Symbol)
Scanner H.P
Platen Cover
Original Width
Original Length-1
Original Length-2
Toner Density
1st Paper End
2nd Paper End
Image Density
Paper Over Flow
Paper Exit
Upper Relay
Lower Relay
Registration
1st Paper Lift
CN Condition
Open
337-2
(SBCU)
Shorted
Open
337-5
(SBCU)
Shorted
Open
335-3, -4
(SBCU)
Shorted
Open
335-8, -9
(SBCU)
Shorted
Open
336-3, -4
(SBCU)
Shorted
Open
327-3
(SBCU)
Shorted
Open
306-2
(SBCU)
Shorted
Open
307-A2
(SBCU)
Shorted
Open
321-3
(SBCU)
Shorted
Open
324-5
(SBCU)
Shorted
Open
324-2
(SBCU)
Shorted
Open
306-5
(SBCU)
Shorted
Open
307-A5
(SBCU)
Shorted
Open
321-6
(SBCU)
Shorted
Open
305-7
(SBCU)
Shorted
7-17
ELECTRICAL COMPONENT DEFECTS
Symptom
SC120 is displayed.
The CPU does not detect the scanner home
position and the scanner motor does not stop.
APS and ARE do not function correctly.
No symptom
The CPU cannot detect the original size
properly. APS and ARE do not function
correctly.
The CPU cannot detect the original size
properly. APS and ARE do not function
correctly.
The CPU cannot detect the original size
properly. APS and ARE do not function
correctly.
SC390 is displayed
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 Paper End indicator lights even if paper
is placed in the 2nd paper tray.
The Paper End indicator does not light even if
there is no paper in the 2nd paper tray.
SC392 is displayed (see note)
The paper overflow message is not displayed
when the paper overfull condition exist.
The paper overflow message is displayed.
The Paper Jam indicator will light whenever a
copy is made.
The Paper Jam indicator lights even if there is
no paper.
The Paper Jam indicator will light whenever a
copy is made.
The Paper Jam indicator lights even if there is
no paper.
The Paper Jam indicator will light whenever a
copy is made.
The Paper Jam indicator lights even if there is
no paper.
The Paper Jam indicator will light whenever a
copy is made.
The Paper Jam indicator lights even if there is
no paper.
SC501 will be displayed.
Paper jam will occur during copying.