Konica Minolta bizhub PRO 1050 Service Manual page 615

14. MALFUNCTION CODE
Classification Code
Fan SC32-12 The rotation of the developing
abnor-
mality
SC32-13 The blowout of a fuse for the
SC32-14 The rotation of the developing
580
Causes
suction fan (FM5) is checked, and
the 24V power source is also
checked.
An abnormal condition occurs
with the FM5 EM signal a specified
period of time after FM5 is turned
ON. This abnormal condition
recurs even a specified period of
time after FM5 is turned OFF and
then turned ON, and an error
detection signal (24V cut off) is
detected.
developing suction fan (FM5) in
the printer control board (PRCB) is
checked.
An abnormal condition occurs
with the FM5 EM signal a specified
period of time after FM5 is turned
ON. This abnormal condition
recurs even a specified period of
time after FM5 is turned OFF and
then turned ON, and an error
detection signal (blowout of a
fuse) is detected with the 24V nor-
mal.
suction fan (FM5) is checked.
An abnormal condition occurs
with the FM5 EM signal a specified
period of time after FM5 is turned
ON. This abnormal condition
recurs even a specified period of
time after FM5 is turned OFF and
then turned ON, and an error
detection signal (24V cut off/blow-
out of a fuse) is not detected.
Field Service Ver3.0 Nov.2006
Resulting Estimated abnormal parts
operation
The main body DC power supply /1 (DCPS/
stops immediately 1)
to turn OFF the
RL1 (main).
Developing suction fan
(FM5)
Printer control board (PRCB)
Developing suction fan
(FM5)
Printer control board (PRCB)