Konica Minolta bizhub PRO 1050 Service Manual page 614

Field Service Ver3.0 Nov.2006
Classification Code
Fan SC32-09 The rotation of the transfer/sepa-
abnor-
mality
SC32-10 The blowout of a fuse for the
SC32-11 The rotation of the transfer/sepa-
Causes
ration suction fan (FM4) is
checked, and the 24V power
source is also checked.
An abnormal condition occurs
with the FM4 EM signal a specified
period of time after FM4 is turned
ON. This abnormal condition
recurs even a specified period of
time after FM4 is turned OFF and
then turned ON, and an error
detection signal (24V cut off) is
detected.
transfer/separation suction fan
(FM4) in the printer control board
(PRCB) is checked.
An abnormal condition occurs
with the FM4 EM signal a specified
period of time after FM4 is turned
ON. This abnormal condition
recurs even a specified period of
time after FM4 is turned OFF and
then turned ON, and an error
detection signal (blowout of a
fuse) is detected with the 24V nor-
mal.
ration suction fan (FM4) is
checked.
An abnormal condition occurs
with the FM4 EM signal a specified
period of time after FM4 is turned
ON. This abnormal condition
recurs even a specified period of
time after FM4 is turned OFF and
then turned ON, and an error
detection signal (24V cut off/blow-
out of a fuse) is not detected.
14. MALFUNCTION CODE
Resulting Estimated abnormal parts
operation
The main body DC power supply /1 (DCPS/
stops immediately 1)
to turn OFF the
RL1 (main).
Transfer/separation suction
fan (FM4)
Printer control board (PRCB)
Transfer/separation suction
fan (FM4)
Printer control board (PRCB)
579