Konica Minolta bizhub C450 Service Manual page 364

Field Service Ver. 1.0 Mar. 2005
Code
C2559 Cyan TCR Sensor adjustment
failure
C255A Magenta TCR Sensor
adjustment failure
C255B Yellow TCR Sensor adjustment
failure
C255C Black TCR Sensor adjustment
failure
C2651 Cyan Imaging Unit EEPROM
access error
C2652 Magenta Imaging Unit EEPROM
access error
C2653 Yellow Imaging Unit EEPROM
access error
C2654 Black Imaging Unit EEPROM
access error
C2655 Cyan LPH correction data
download failure
C2656 Magenta LPH correction data
download failure
C2657 Yellow LPH correction data
download failure
C2658 Black LPH correction data
download failure
C3101 Fusing Pressure Roller
pressure/retraction failure
C3201 Fusing Drive Motor's failure to
turn
C3202 Fusing Drive Motor turning at
abnormal timing
C3301 Fusing Cooling Fan Motor/1
failure to turn
Item
• TCR Sensor automatic adjustment does not func-
tion properly, failing to adjust to an appropriate
value.
• A condition of "EEPROM is not connected" or
"There is an access error" is detected in
EEPROM of the Imaging Unit.
• An error is detected while the LPH correction data
is being downloaded from EEPROM of LPH to
PWB-MFPC when the Main Power Switch is
turned ON.
• No change is observed in the encoder sensor
pulse even after the lapse of 0.5 sec. after the
Fusing Pressure/Retraction Motor has started
turning for a sequence of the Fusing Pressure
Roller's retracting motion.
• No change is observed in the encoder sensor
pulse even after the lapse of 0.5 sec. after the
Fusing Pressure/Retraction Motor has started
turning for a sequence of the Fusing Pressure
Roller's pressing motion.
• The Fusing Pressure Position Sensor is not acti-
vated (pressed position) even when 30 encoder
sensor pulses are counted after the Fusing Pres-
sure/Retraction Motor has started turning for a
sequence of the Fusing Pressure Roller's press-
ing motion.
• The Fan Lock signal remains HIGH for a predeter-
mined continuous period of time while the Motor
remains stationary.
• The Motor Lock signal remains LOW for a prede-
termined continuous period of time while the
Motor remains stationary.
• The Fan Lock signal remains HIGH for a predeter-
mined continuous period of time while the Motor
remains stationary.
16. Malfunction code
Description Rank
B
B
B
B
C
C
C
C
C
C
C
C
B
B
B
B
327