Electrical Component Defects
SM 6-3 D009/D011/D012/D013/D091/D092
Trouble-
shooting
Component
(Symbol)
CN Condition Symptom
Fusing Entrance (S8) 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.
ID (Image Density)
(S9)
208-11 (IOB)
Open SC350 is displayed after copying.
Shorted SC351 is displayed after copying.
Web End (S10) 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.
TD (Toner Density)
(S11)
213-14 (IOB)
Open
The add toner indicator blinks even
if there is toner in the development
unit.
Shorted SC390 is displayed.
Toner Overflow (S13) 217-B15 (IOB)
Open
CPU cannot detect the toner
overflow even the waste toner in
the transfer belt unit is full.
Shorted
CPU detects the toner overflow
even the waste toner in the transfer
belt unit is not full.
Duplex Entrance
(S14)
217-A8 (IOB)
Open Jam Z (Jam 26/27)
Shorted Jam Z (Jam 1)