Ricoh FT4227 Manual page 615

ELECTRICAL COMPONENT DEFECTS
Component
(Symbol)
Duplex
entrance
≥2.4 V
(duplex
machine
≤0.8 V
only) (S22)
Duplex turn
gate
≥2.4 V
(duplex
machine
≤0.8 V
only) (S23)
Duplex
paper end
≥2.4 V
(duplex
machine
≤0.8 V
only) (S24)
Jogger H.P.
≥2.4 V
(duplex
machine
only) (S25)
≤0.8 V
LCT paper
≥0.9 Vcc
end (LCT
machine
only) (S26)
≤0.5 V
LCT lower
≥0.9 Vcc
limit (LCT
machine
only) (S27)
≤0.5 V
LCT upper
≥0.9 Vcc
limit (LCT
machine
only) (S28)
≤0.5 V
CN Condition
Open
111-A5
Shorted
"Paper jam E"
Open indicator starts
blinking.
111-B5
Shorted "Paper jam E" indicator starts blinking.
Open
111-B4
Shorted
Open
111-B6
Shorted
When LCT is selected "Paper end" indicator
Open does not light even though paper is empty
105-B12
Shorted Tray goes down even if paper is not empty.
Tray does not go
down even if tray
Open
down switch is
105-B17
pressed.
"SC#46" is displayed after tray goes down.
Shorted
Open After tray goes down, tray does not lift up.
105-B18
Shorted "SC#46" is displayed after tray lifts up.
6-40
Symptom
Main SW turns on
—
—
—
—
—
—
—
12 February 1992
Ready condition
"Paper jam E"
indicator starts
blinking when copies
are made in duplex
mode.
—
When multi duplex
copies are made,
paper jam should be
accused in duplex tray.
"SC#82" is displayed
when copies are
made in duplex mode.
Tray does not go
down even though
paper is empty in the
LCT.