Ricoh D129 Service Manual page 563

Electrical Component Defects
Component
(Symbol)
Paper Overflow
TD (Toner Density)
Web End
ID (Image Density)
Fusing Entrance
Scanner Home
Position
D129/D130
CN Condition
Open
221-B8 (IOB)
Shorted
Open
213-14 (IOB)
Shorted
Open
208-16 (IOB)
Shorted
Open
208-11 (IOB)
Shorted
Open
208-8 (IOB)
Shorted
Open
318-2 (SIO)
Shorted
Paper overflow message is not
displayed when a paper overflow
condition exists.
Paper overflow message is
displayed when a paper overflow
condition does not exist.
The add toner indicator blinks
even if there is toner in the
development unit.
SC390 is displayed.
CPU detects the web end even
the web is not used up.
CPU cannot detect the web end
even the web is used up.
SC350 is displayed after copying.
SC351 is displayed after copying.
CPU cannot detect paper even a
sheet of paper remains at the
fusing unit.
CPU detects paper even a sheet
of paper does not remain at the
fusing unit.
SC121 is displayed.
SC120 is displayed.
6-74
Symptom
SM