Electrical Component Defects; Sensors - Ricoh B205 Service Manual

4.6 ELECTRICAL COMPONENT DEFECTS

4.6.1 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
SM
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
(SBCU)
Shorted
Open
321-3, -4
(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
4-31
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.
B205/B209/D007/D008