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10 February 2005
4.4.2 SWITCHES
Component
(Symbol)
Exit cover
switch
(I/O board)
Front cover
switch
(I/O board)
Interlock switch
(I/O board)
O/B waste
toner bottle
(I/O board)
switch
Tray set/paper
size switch (tray
1)
(I/O board)
Tray set/paper
size switch (tray
2)
(I/O board)
Right cover
switch
(I/O board)
T/B waste toner
bottle switch
(I/O board)
4.4.3 BLOWN FUSE CONDITIONS
Fuse
Power Supply Board
FU1 (N.A.)
15A/125V
FU2
10A/250V
FU8
5A/250V
FU9
5A/250V
FU12
5A/250V
CN
Condition
Open
324
Shorted
Open
324
Shorted
Open
312
Shorted
Open
307
Shorted
Open
308
Shorted
Open
308
Shorted
Open
324
Shorted
Open
307
Shorted
Rating
115V
220 ~ 240V
—
5A/250V
5A/250V
5A/250V
5A/250V
ELECTRICAL COMPONENT DEFECTS
Symptom
The user is prompted to close the exit cover.
No symptom is seen.
The user is prompted to close the front cover.
No symptom is seen.
The user is prompted to close the front cover.
No symptom is seen.
The bottle is not detected when it is installed.
The bottle is detected when it is not installed.
The tray is not detected when it is installed.
• The paper tray is detected when it is not
installed.
• The paper size is incorrectly detected (a paper
jam may occur).
The tray is not detected when it is installed.
• The paper tray is detected when it is not
installed.
• The paper size is incorrectly detected (a paper
jam may occur).
The user is prompted to close the right cover.
No symptom
The bottle is not detected when it is installed.
Bottle full is detected when the bottle is not
installed.
Symptom when turning on the main switch
No response
No response
The machine starts initialization (the sound is
heard), but nothing appears on the operation
panel.
The machine starts program loading, and
optional units (PFU, LCT, Interchange, By-
pass, Duplex, bridge, shift tray and key
counter) are disabled.
The machine starts program loading, and
"Functional Problems" appears on the
operation panel with the "SC547".
4-25
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