Konica Minolta bizhub PRO 1050 Service Manual page 617

14. MALFUNCTION CODE
Classification Code
Fan SC32-18 The rotation of the paper exit cool-
abnor-
mality
SC32-19 The blowout of a fuse for the
SC32-20 The rotation of the paper exit cool-
582
Causes
ing fan /2 (FM10) is checked, and
the 24V power source is also
checked.
An abnormal condition occurs
with the FM10 EM signal a speci-
fied period of time after FM10 is
turned ON. This abnormal condi-
tion recurs even a specified period
of time after FM10 is turned OFF
and then turned ON, and an error
detection signal (24V cut off) is
detected.
paper exit cooling fans /2 (FM10)
and /3 (FM28) in the printer control
board (PRCB) is checked.
An abnormal condition occurs
with the FM10 EM signal a speci-
fied period of time after FM10 is
turned ON. This abnormal condi-
tion recurs even a specified period
of time after FM10 is turned OFF
and then turned ON, and an error
detection signal (blowout of a
fuse) is detected with the 24V nor-
mal.
ing fans /2 (FM10) and /3 (FM28)
is checked.
An abnormal condition occurs
with the FM10 EM signal a speci-
fied period of time after FM10 is
turned ON. This abnormal condi-
tion recurs even a specified period
of time after FM10 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).
Paper exit cooling fans /2
(FM10), /3 (FM28)
Paper exit cooling fans /2
(FM10), /3 (FM28)