Konica Minolta bizhub PRO 920 Service Manual page 494

13. MALFUNCTION CODE
Classification Code
LU SC18-40
SC18-41#
SC18-42#
SC18-43#
Bypass SC18-51#
462
Causes
The locking of the paper lift motor
(M100) is detected.
When the paper lift motor (M100)
is ON, an error detection signal of
M100 is detected in succession
for 1 second.
When the upper limit sensor
(PS109) or the lower limit sensor
(PS101) is OFF, PS109 or PS101
does not turn ON within a speci-
fied period of time after the paper
lift motor (M100) turns ON for its
lifting or lowering operation. And
at this time, an error detection
signal (24V cut off) is detected.
When the upper limit sensor
(PS109) or the lower limit sensor
(PS101) is OFF, PS109 or PS101
does not turn ON within a speci-
fied period of time after the paper
lift motor (M100) turns ON for its
lifting or lowering operation. And
at this time, an error detection
signal (blowout of ICP) is
detected.
When the upper limit sensor
(PS109) or the lower limit sensor
(PS101) is OFF, PS109 or PS101
does not turn ON within a speci-
fied period of time after the paper
lift motor (M100) turns ON for its
lifting or lowering operation. And
at this time, an error detection
signal is not detected.
When the upper limit sensor /
bypass (PS23) or the lower limit
sensor /bypass (PS43) is OFF,
PS23 or PS43 does not turn ON
within a specified period of time
after the bypass tray lift motor
(M22) turns ON for its lifting or
lowering operation. And at this
time, an error detection signal
(24V cut off) is detected.
Field Service Ver2.0 Aug.2005
Resulting Estimated abnormal parts
operation
The main body Paper lift motor (M100)
stops immedi- DC power supply /2
ately to turn OFF (DCPS2)
the main relay LU drive board (LUDB)
(RL1). Lower limit sensor (PS101)
Upper limit sensor (PS109)
Loose connection
Error code is not
displayed on the
operation panel,
but displayed
only on the data
collection, the
list output and
CSRC. Since
the lifting opera-
tion of the tray is
not completed,
"Set paper in the
tray 4" is dis-
played on the
operation panel.
Paper lift motor (M100)
LU drive board (LUDB)
Lower limit sensor (PS101)
Upper limit sensor (PS109)
Loose connection
"Press START to Bypass tray lift motor (M22)
restart" is dis- Printer control board
played on the (PRCB)
operation panel. Upper limit sensor /Bypass
An error code is (PS23)
displayed (J10- Lower limit sensor /Bypass
01 jam count) (PS43)
only for data col- DC power supply /2
lection, list out- (DCPS2)
put and CSRC. Loose connection