Savin SLP20 Manual de Serviço Página 189

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ELECTRICAL COMPONENT DEFECTS
SM 7-17 G031/G032
Trouble-
shooting
7.4 ELECTRICAL COMPONENT DEFECTS
7.4.1 SENSORS
Component
(Symbol)
CN Condition Symptom
Open A paper jam at the fusing unit whenever a print is made.
Fusing Exit
(S1)
6-8
(ECB)
Shorted The Paper Jam message appears even if there is no paper.
Open
The Paper End message appears even if paper is placed in
the paper tray.
Tray Paper
End (S2)
4-1
(ECB)
Shorted
The Paper End message does not appear even if there is
no paper in the paper tray.
Open
The Paper Near End message does not appear on the PC
even if the paper tray is almost empty.
Tray Paper
Near-end (S3)
4-4
(ECB)
Shorted
The Paper Near End message appears on the PC even if
enough paper is placed in the paper tray.
Open
When selecting the by-pass tray, the Paper End message
does not appear even if there is no paper in the by-pass
tray.
By-pass Tray
Paper Set
(S4)
3-5
(ECB)
Shorted
When selecting the by-pass tray, the Paper End message
appears even if there is paper in the by-pass tray.
Open A paper jam at the registration roller when a print is made.Registration
(S5)
3-2
(ECB)
Shorted The Paper Jam message appears even if there is no jam.
Open
Toner is not added, even if there is not enough toner in the
toner supply unit.
Toner Near-
end (S6)
5-2
(ECB)
Shorted
Toner is added, even if there is enough toner in the toner
supply unit.
7.4.2 SWITCHES
Component
(Symbol)
CN Condition Symptom
Open The machine does not turn on.Main (SW1)
101-1,2
(PSU)
Shorted The machine does not turn off.
Open
The Cover Open message is displayed even if the front
cover is closed.
Front Cover
Safety (SW2)
103-1,2
(PSU)
Shorted
The Cover Open message is not displayed even if the front
cover is open.
OpenTray Paper
Size (SW3)
4-5,6,8
(ECB)
Shorted
The CPU cannot detect the proper paper size, and misfeeds
may occur when a print is made.
7.4.3 FUSES
Rating Symptom when turning on the main switch
Fuse
115 V 220 ~ 240 V
Power Supply Board
FU1 5 A/125 V 3.15 A/250 V No response.
FU2 15 A/250 V 6.3 A/250 V After turning on the main switch, SC542 is displayed.
FU3 5 A/125 V 5 A/250 V No response.
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA
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