Konica Minolta BIZHUB 501 Service Manual page 385

13. MALFUNCTION CODE
Classification Code
PU C-1121
Image C-2001
process
commu-
nication
abnor-
mality
Motor C-2201
speed
abnor-
mality
C-2202
Fan C-2301
lock
abnor-
mality
C-2302
C-2303
348
Causes
Punch motor (M1) drive abnor-
mality.
The punch position sensors /1
(PS2) and /2 (PS3) do not turn
OFF within a specified period of
time after M1 turns ON.
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, a process
Ready signal cannot be detected
for a specified period of time.
Developing motor (M3) speed
abnormality.
While M3 is ON, an EM error sig-
nal has been detected 5 times in
succession within a specified
period of time.
Drum motor (M1) speed abnor-
mality.
While M1 is ON, an EM error sig-
nal has been detected 5 times in
succession within a specified
period of time.
Drum cooling fan (FM4) abnor-
mality.
While FM4 is ON, an EM error
signal has been detected 5 times
in succession within a specified
period of time.
Developing suction fan motor
(FM6) abnormality.
While FM6 is ON, an EM error
signal has been detected 5 times
in succession within a specified
period of time.
Developing cooling fan (FM7)
abnormality.
While FM7 is ON, an EM error
signal has been detected 5 times
in succession within a specified
period of time.
Field Service Ver.2.0 Mar. 2009
Resulting Estimated abnormal parts
operation
The main body Punch motor (M1)
stops immedi- Punch position sensor /1
ately to turn OFF (PS2)
the main relay Punch position sensor /2
(RL1). (PS3)
FS control board (FSCB)
Overall control board (OACB)
Printer control board (PRCB)
Developing motor (M3)
Printer control board (PRCB)
Drum motor (M1)
Printer control board (PRCB)
Drum cooling fan (FM4)
Printer control board (PRCB)
Developing suction fan
motor (FM6)
Printer control board (PRCB)
Developing cooling fan (FM7)
Printer control board (PRCB)