Konica Minolta BIZHUB 501 Service Manual page 377

13. MALFUNCTION CODE
Classification Code
Drive C-0207
Fan C-0301
abnor-
mality
Commu- C-1001*
nication
abnor-
mality
FS C-1002
FS-522 C-1003
FS-523 C-1101
340
Causes
While in the paper feed, there
occurs a condition twice in suc-
cession in which the lift sensor
(PS23) does not turn ON within a
specified period of time after the
pick-up solenoid /BP (SD1) turns
ON.
While in the power switch (SW2)
ON, there occurs a condition
twice in succession in which
PS23 does not turn OFF within a
specified period of time after SD1
turns ON.
Conveyance suction fan (FM5)
abnormality.
Communication abnormality
between the engine control of the
overall control board (OACB) and
that of the printer control board
(PRCB).
While in the stand-by, an FS
Ready signal cannot be detected
for a specified period of time.
FS communication abnormality.
A serial communication is unavail-
able between the FS control
board (FSCB) and the printer
control board (PRCB).
Flash ROM abnormality.
A checksum error of the flash
ROM is detected.
Shift motor (M8) drive abnormal-
ity.
• When starting the home posi-
tion movement, the shift
home sensor (PS10) does not
turn ON a specified period of
time after M8 turns ON.
• When starting the shift posi-
tion movement, PS10 does
not turn OFF a specified
period of time after M8 turns
ON.
Field Service Ver.2.0 Mar. 2009
Resulting Estimated abnormal parts
operation
The main body Pick-up solenoid /BP (SD1)
stops immedi- Lift sensor (PS23)
ately to turn OFF Feed motor (M9)
the main relay Printer control board (PRCB)
(RL1).
Conveyance suction fan
(FM5)
Printer control board (PRCB)
Overall control board (OACB)
Printer control board (PRCB)
FS control board (FSCB)
Printer control board (PRCB)
FS control board (FSCB)
Shift motor (M8)
Shift home sensor (PS10)
FS control board (FSCB)