Ricoh FT5233 Service Manual page 387

ELECTRICAL COMPONENT DEFECTS
Component
(Symbol)
Lower tray
≥0.9 Vcc
upper limit
(S8)
≤0.5 V
Lower relay
≥0.9 Vcc
(S9)
≤0.4 V
Upper relay
≥0.9 Vcc
(S10)
≤0.4 V
Registration
≥0.9 Vcc
(S11)
≤0.4 V
Image
density (ID)
(S12)
(S13)
≥2.4 Vcc
Fusing exit
(S14)
≤0.5 V
CN Condition
When the last paper was fed out from the
lower tray, "Paper end" indicator lights for an
Open
instant.
104-B17
The lower tray lift motor does not rotate.
After blinking, the paper size indicator
Shorted
"SC#42" is displayed.
Open
104-B15
"Paper jam A" indicator starts blinking even if
Shorted there is no paper.
Open
104-B7
"Paper jam A" indicator starts blinking even if
Shorted
there is no paper.
Open
105-A6
"Paper jam A" indicator starts blinking even if
Shorted there is no paper.
Open
"SC#74" is displayed when SP#54 is
110-B27
performed.
Shorted
Open
"SC#75" is displayed when SP#54 is
110-A27
performed.
Shorted
Open
110-B8
"Paper jam B" indicator starts blinking even if
Shorted there is no paper.
6-38
Symptom
Main SW turns on
—
—
—
—
12 February 1992
Ready condition
"Paper jam A"
indicator starts
blinking when copies
are made from the
lower tray.
"Paper jam A"
indicator starts
blinking when copies
are made from the
trays or in duplex
mode.
"Paper jam A"
indicator starts
blinking when copies
are made.
"Paper jam B"
indicator starts
blinking when copies
are made.