Switches; Blown Fuse Conditions - Ricoh B156 Service Manual

4.4.2 SWITCHES

Component
CN
(Symbol)
Exit cover
324
switch
(I/O board)
Front cover
324
switch (I/O board)
Interlock switch
312
(I/O board)
O/B waste
307
toner bottle
(I/O board)
switch
Tray set/paper
size switch (tray
308
1)
(I/O board)
Tray set/paper
size switch (tray
308
2)
(I/O board)
Right cover
324
switch
(I/O board)
T/B waste toner
307
bottle switch
(I/O board)

4.4.3 BLOWN FUSE CONDITIONS

Fuse
115V
Power Supply Board
FU1 (N.A.) 15A/125V
FU2 10A/250V
FU8 5A/250V
FU9 5A/250V
FU12 5A/250V
SM
CÓPIA NÃO CONTROLADA
ELECTRICAL COMPONENT DEFECTS
Condition
Open The user is prompted to close the exit cover.
Shorted No symptom is seen.
Open The user is prompted to close the front cover.
Shorted No symptom is seen.
Open The user is prompted to close the front cover.
Shorted No symptom is seen.
Open The bottle is not detected when it is installed.
The bottle is detected when it is not installed.
Shorted
Open The tray is not detected when it is installed.
• The paper tray is detected when it is not
installed.
Shorted
• The paper size is incorrectly detected (a paper
jam may occur).
Open The tray is not detected when it is installed.
• The paper tray is detected when it is not
installed.
Shorted
• The paper size is incorrectly detected (a paper
jam may occur).
Open The user is prompted to close the right cover.
Shorted No symptom
Open The bottle is not detected when it is installed.
Bottle full is detected when the bottle is not
Shorted
installed.
Rating
Symptom when turning on the main switch
220 ~ 240V
— No response
5A/250V No response
The machine starts initialization (the sound is
5A/250V
heard), but nothing appears on the operation
panel.
The machine starts program loading, and
optional units (PFU, LCT, Interchange, By-
5A/250V
pass, Duplex, bridge, shift tray and key
counter) are disabled.
The machine starts program loading, and
5A/250V "Functional Problems" appears on the
operation panel with the "SC547".
4-25
CÓPIA NÃO CONTROLADA
Symptom
B156/B220