Electrical Component Defects - Ricoh B082 Service Manual

ELECTRICAL COMPONENT DEFECTS

4.2 ELECTRICAL COMPONENT DEFECTS
4.2.1 SENSORS
Component
(Symbol)
Scanner Home
Position (S1)
Platen Cover
(S2)
Original Width
(S3)
Original Length-1
(S4)
Original Length-2
(S5)
LD Unit Home
Position (S6)
Toner Density
(TD) (S7)
Paper Exit (S8)
Registration
(S13)
Image Density
(ID) (S14)
Upper Paper
Height (S15)
Lower Paper
Height (S16)
Upper Paper End
(S17)
B079/B082
CN Condition
Open
507-5(SIB)
Shorted
Open
507-8 (SIB)
Shorted
Open
505-3, 4
(SIB)
Shorted
Open
505-8,9
(SIB)
Shorted
Open
505-13
(SIB)
Shorted
Open
204-B2
(IOB)
Shorted
Open
222-11
(IOB)
Shorted
Open
202-B2
(IOB)
Shorted
Open
212-B2
(IOB)
Shorted
Open
203-5
(IOB)
Shorted
Open
220-2
(IOB)
Shorted
Open
214-2
(IOB)
Shorted
Open
220-8
(IOB)
Shorted
SC121 is displayed.
SC120 is displayed.
APS and ARE do not function properly.
No symptom.
CPU cannot detect the original size properly.
APS and ARE do not function correctly.
CPU cannot detect the original size properly.
APS and ARE do not function correctly.
CPU cannot detect the original size properly.
APS and ARE do not function correctly.
SC328 is displayed when the laser beam pitch
is changed.
SC327 is displayed when the laser beam pitch
is changed.
The add toner indicator blinks even if there is
toner in the development unit.
SC390-01 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 lights even if there is
no paper.
The Paper Jam indicator will light whenever a
copy is made.
SC350-03 is displayed after copying.
SC350-01 is displayed after copying.
Add Paper is displayed even if there is paper. If
this condition occurred four times, SC501-02
will be displayed.
SC501-01 is displayed.
Add Paper is displayed even if there is paper. If
this condition occurred four times, SC502-02
will be displayed.
SC502-01 is displayed.
The Paper End indicator lights even if paper is
placed in the upper paper tray.
The Paper End indicator does not light even if
there is no paper in the upper paper tray.
4-24
Symptom
SM