Konica Minolta bizhub C250 Service Manual page 465

16. Malfunction code
Code
C11C3 Finishing option Punch Side
Registration Motor malfunction
C11C5 Finishing option Punch Sensor
malfunction
C11D0 Crease motor drive failure
C1301 Finishing option cooling fan
motor failure
C1401 Finishing option Backup RAM
failure
C2151 2nd Image Transfer Roller
Separation
C2152 Transfer Belt Separation
C2253 Color PC Drum Motor's failure to
turn
C2254 Color PC Drum Motor's turning
at abnormal timing
C2255 Color Developing Motor's failure
to turn
C2256 Color Developing Motor's turning
at abnormal timing
C2451 Transfer Cleaner Unit New
Article Release
C2551 Abnormally low toner density
detected Cyan TCR Sensor
422
Item
See FS-501 or FS-603 Service Manual.
See SD-503 Service Manual.
See FS-514 Service Manual.
See FS-501 or FS-603 Service Manual.
• The 2nd Image Transfer Pressure Position Sensor
doesn't turn ON (Retracting) even after the lapse
of a given period of time after the 2nd Image
Transfer Pressure/Retraction Motor has started
rotating during the 2nd Image Transfer Roller is
retracting.
• The 2nd Image Transfer Pressure Position Sensor
doesn't turn OFF (Pressuring) even after the
lapse of a given period of time after the 2nd
Image Transfer Pressure/Retraction Motor has
started rotating during the 2nd Image Transfer
Roller is pressuring.
• The 1st Image Transfer Pressure/Retraction Posi-
tion Sensor doesn't turn ON (Retracting) even
after the lapse of a given period of time after the
1st Image Transfer Pressure/Retraction Clutch
has turned ON during the Transfer Belt is retract-
ing.
• The 1st Image Transfer Pressure/Retraction Posi-
tion Sensor doesn't turn OFF (Pressuring) even
after the lapse of a given period of time after the
1st Image Transfer Pressure/Retraction Clutch
has turned ON during the Transfer Belt is pressur-
ing.
• The Motor Lock signal remains HIGH for a prede-
termined continuous period of time while the
Motor is turning.
• The Motor Lock signal remains LOW for a prede-
termined continuous period of time while the
Motor remains stationary.
• The Motor Lock signal remains HIGH for a prede-
termined continuous period of time while the
Motor is turning.
• The Motor Lock signal remains LOW for a prede-
termined continuous period of time while the
Motor remains stationary.
• A new installation is not detected when a new
Transfer Cleaner Unit (Image Transfer Belt Unit) is
installed.
• TC ratio in the developing machine, which is
determined by Toner replenishing amount control
mechanism, is 5 % or less for a given number of
times consecutively.
Field Service Ver. 3.0 Aug. 2006
Description Rank
C
C
B
B
B
B
B
B
B
B
B
B
B