Konica Minolta bizhub PRO 1050 Service Manual page 644

Field Service Ver3.0 Nov.2006
Classification Code
Commu- SC50-08* Drive communication reception
nication
abnor-
SC50-10 When the power switch is turned
mality
SC50-11 Any of the following error is
SC51-01* Drive communication reception
SC51-02* Drive communication reception
SC51-03* Drive communication reception
Fan SC52-01 The rotation of the cooling fan /1
abnor-
mality
Causes
error detection abnormality.
ON, the printer control board
(PRCB) cannot receive initial data
from the image processing board
(IPB) within a specified period of
time.
detected during data reception
between image processing board
(IPB) and printer control board
(PRCB).
• Data head error
• Data checksum error
• Undefined command recep-
tion error
• Occurrence of communica-
tion GA error vector
error detection abnormality.
error detection abnormality.
error detection abnormality.
(FM1) is checked, and +24V
power source is also checked. An
abnormal condition occurs with
the FM1 EM signal a specified
period of time after FM1 turns ON.
This abnormal condition recurs
even a specified period of time
after FM1 is turned OFF and then
turned ON, and an error detection
signal (24V cut off) is detected.
14. MALFUNCTION CODE
Resulting Estimated abnormal parts
operation
The main body Printer control board (PRCB)
stops immediately
to turn OFF the
Printer control board (PRCB)
RL1 (main).
Image processing board
(IPB)
Printer control board (PRCB)
Image processing board
(IPB)
The connector between the
PRDB and the IPB.
Printer control board (PRCB)
PF drive board (PFUDB)
The connector between the
PF and the main body.
DC power supply /2 (DCPS/
2)
609
2