Konica Minolta bizhub PRO 1050 Service Manual page 602

Field Service Ver3.0 Nov.2006
Classification Code
Wire SC21-07 The home position search time of
cleaning
abnor-
mality
SC21-08 An error is detected while in the
Motor SC23-01 The speed error signal of the toner
abnor-
mality
SC23-02 The speed error signal of the
SC23-03 The locking of the blade motor is
SC23-04 It is checked that the movement of
Causes
the transfer assist motor is out.
The transfer assist home sensor
(PS37) does not turn ON within a
specified period of time after the
home position search operation of
the transfer assist motor (M19) is
started.
operation of the transfer assist
motor.
An error is detected of the transfer
assist motor (M19) while in the
print operation.
bottle motor (M6) is checked.
An error detection signal is
detected twice in succession a
specified period of time after M6
turns ON (the first signal is
ignored).
developing motor (M3) is checked.
Since an error detection signal is
detected a second after M3 turns
ON, turn OFF M3 for 0.5 seconds.
Then, an error detection signal is
detected again a second after it is
turned ON again.
detected.
The error detection signal (over
current) of M22 is detected.
the blade motor (M22) is not com-
pleted, and the 24V power source
is also checked.
The drum READY1 signal (READY
condition) cannot be detected
within a specified period of time
after the drum motor (M2) turns
ON. Or, the drum READY1 signal
(READY release condition) cannot
be detected within a specified
period of time after M2 turns OFF.
At this time, an error detection sig-
nal (24V cut out) is detected.
14. MALFUNCTION CODE
Resulting Estimated abnormal parts
operation
The main body Transfer assist motor (M19)
stops immediately Transfer assist home sensor
to turn OFF the (PS37)
RL1 (main). ADU drive boards /1, /2
(ADUDB/1, /2)
Transfer assist motor (M19)
Transfer/separation clean-
ing limit sensor (PS39)
Transfer assist home sensor
(PS37)
Toner bottle motor (M6)
Printer control board (PRCB)
Toner bottle/large capacity
hopper
Developing motor (M3)
Printer control board (PRCB)
Blade motor (M22)
Blade sensor /1 (PS24), /2
(PS25)
DC power supply /2 (DCPS/
2)
567