Electrical Component Defects; Sensors - Gestetner A193 Service Manual

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3. ELECTRICAL COMPONENT DEFECTS

3.1 SENSORS

Component
(Symbol)
Upper Exit (S1)
157-11
(IOCSS)
Lower Exit (S2)
(IOCSS)
Left Vertical Door
(S3)
(IOCSS)
Left Door (S4)
(IOCSS)
Relay (S5)
(IOCSS)
PCU Detect (S6)
(IOCSS)
Fusing Exit (S7)
(IOCSS)
Charge Roller
Contact (S8)
(IOCSS)
Upper Tray Paper
End (S9)
(IOCSS)
Lower Tray
Paper End (S10)
(IOCSS)
By-pass Feed
Paper End (S11)
(IOCSS)
SM
CN
Condition
Open
The Paper Jam indicator will light whenever
a copy is made.
Shorted
The Paper Jam indicator lights when there is
no paper.
157-8
Open
The Paper Jam indicator will light whenever
a copy is made.
Shorted
The Paper Jam indicator lights when there is
no paper.
157-5
Open
The Door Open indicator does not light when
the left vertical door is opened.
Shorted
The Door Open indicator lights when the left
vertical door is closed.
157-2
Open
The Door Open indicator does not light when
the left door is opened.
Shorted
The Door Open indicator lights when the left
door is closed.
104-2
Open
The Paper Jam indicator will light whenever
a copy is made.
Shorted
The Paper Jam indicator lights when there is
no paper.
151-1
Open
The TD sensor initial setting procedure is not
performed when a new PCU is installed.
Shorted
The TD sensor initial setting procedure is
performed whenever the front cover is closed.
151-6
Open
The Paper Jam indicator will light whenever
a copy is made.
Shorted
The Paper Jam indicator lights when there is
no paper.
151-9
Open
No Symptom
Shorted
SC306 is displayed.
103-2
Open
The Paper End indicator lights when paper is
placed in the upper paper tray.
Shorted
The Paper End indicator does not light when
there is no paper in the upper paper tray.
103-5
Open
The Paper End indicator lights when paper is
placed in the lower paper tray.
Shorted
The Paper End indicator does not light when
there is no paper in the lower paper tray.
119-4
Open
The Paper End indicator lights when paper is
placed on the by-pass feed tray.
Shorted
The Paper End indicator does not light when
there is no paper on the by-pass feed tray.
6-11
ELECTRICAL COMPONENT DEFECTS
Symptom
(A193)

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A224

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