Ricoh D129 - Page 563

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