Konica Minolta Magicolor 8650 Service Manual page 339

14. Malfunction code
Code Item
C3823 Fusing abnormally low
temperature detection
(pressurizing side)
C4151 Polygon motor rotation
trouble (C)
C4152 Polygon motor rotation
trouble (M)
C4153 Polygon motor rotation
trouble (Y)
C4154 Polygon motor rotation
trouble (K)
C4551 Laser malfunction (C)
C4552 Laser malfunction (M)
C4553 Laser malfunction (Y)
C4554 Laser malfunction (K)
C5102 Transport motor's
failure to turn
C5103 Transport motor's
turning at abnormal timing
C5351 Power supply cooling fan
motor/1's failure to turn
C5353 Cooling fan motor/2's
failure to turn
C5354 Exhaust fan motor's
failure to turn
C5357 Cooling fan motor/1's
failure to turn
C5371 MFP board cooling fan
motor's failure to turn
CA051 Standard controller
configuration failure
CA052 Controller hardware error • A controller hardware error is detected in
CA053 Controller start failure
CC151 ROM contents error upon
startup (MSC)
298
Confidential – for internal use only, do not distribute
Detection timing
• The temperature of the pressure roller con-
tinues to be lower than a predetermined
level for a predetermined period of time after
a temperature correction.
• The polygon motor fails to turn stably even
after the lapse of a given period of time after
activating the polygon motor.
• Motor lock signal detects HIGH for a given
period time consecutively during the poly-
gon motor is rotating.
• SOS signal is not detected even after the
lapse of a given period of time after staring
the laser output.
• SOS signal is not detected for a given
period of time during printing or image stabi-
lization adjustment.
• The motor lock signal remains HIGH for a
predetermined continuous period of time
while the motor remains stationary.
• The motor lock signal remains LOW for a
predetermined continuous period of time
while the motor remains stationary.
• The fan lock signal remains HIGH for a pre-
determined continuous period of time while
the motor remains stationary.
• The fan lock signal remains HIGH for a pre-
determined continuous period of time while
the motor remains stationary.
• The fan lock signal remains HIGH for a pre-
determined continuous period of time while
the motor remains stationary.
• The fan lock signal remains HIGH for a pre-
determined continuous period of time while
the motor remains stationary.
• The fan lock signal remains HIGH for a pre-
determined continuous period of time while
the motor remains stationary.
• The controller of the printer control board
(PRCB) is faulty.
the network I/F.
• A controller start failure is detected in the
controller interface.
• A fault is detected in a sequence of ROM
contents check of the MSC (PRCB) during
starting
Field Service Ver. 2.0 Nov. 2007
Trouble iso-
lation com-
pliant unit
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Rank
A
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
C
C
C
C