Konica Minolta bizhub PRO 1050 Service Manual page 678

Field Service Ver3.0 Nov.2006
Classification Code
Commu- SC90-05 In the initial communication check
nication
abnor-
mality
SC90-06 In the communication check
Power SC93-01 Error detection signal (blown fuse)
abnor-
mality
SC93-05 Error detection signal (blown fuse)
SC93-06 Error detection signal (blown fuse)
SC93-08 Error detection signal (24V blown
Fan SC95-01 The EM signal is found abnormal a
abnor-
mality
Causes
between ADU drive board /1
(ADJDB1) and printer control
board (PRCB), no response is
returned from ADUDB1 after a
specified time from turning ON of
the main power switch (SW1) and
sub power switch (SW2) (ID=11).
between ADU drive board /1
(ADUDB1) and printer control
board (PRCB), an error was
detected (ID=11).
of ADU drive board /1 (ADUDB1)
was detected.
of offset sensor (PS54) or transfer
exposure lamp (TSL) was
detected and an error signal (24V
disconnection) was detected.
of offset sensor (PS54) or transfer
exposure lamp (TSL) was
detected but no error signal (24V
disconnection) is detected.
fuse) of PF drive board (PFUDB)
was detected.
specified period of time after the
ADU cooling fans /1 (FM14), /2
(FM15) and /3 (FM13), the sensor
cooling fan (FM16) and the regis-
tration cooling fan (FM17) turn on.
And the signal is still found abnor-
mal a specified period of time after
it turns on again after turning off,
and the door close of the door
open/close sensors /1 (PS1) and /
2 (PS2) and the PF door open/
close sensor (PS70) has been
detected 10 times in a row.
14. MALFUNCTION CODE
Resulting Estimated abnormal parts
operation
The main body Printer control board (PRCB)
stops immediately ADU drive board /1
to turn OFF the (ADJDB1)
Rl1 (main). Loose connection
Printer control board (PRCB)
ADU drive board /1
(ADJDB1)
Loose connection
ADU drive board /1
(ADJDB1)
DC power supply /1
(DCPS1)
Centering sensor (PS54)
Transfer exposure lamp
(TSL)
ADU lock solenoid (SD6)
Reverse/exit solenoid (SD7)
Thick paper assist solenoid
(SD8)
PF drive board (PFUDB)
ADU drive board /1
(ADJDB1)
ADU cooling fan /1 (FM14), /
2 (FM15), /3 (FM13)
Sensor cooling fan (FM16)
Registration cooling fan
(FM17)
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