Konica Minolta bizhub PRO 920 Service Manual page 517

Field Service Ver2.0 Aug.2005
Classification Code
Image SC46-21*
proces
sing
abnor-
mality
SC46-23*
SC46-24*
SC46-25*
SC46-26#
SC46-27#
Causes
The expansion processing from
the memory to the page memory
is not terminated within a speci-
fied period of time.
The compression processing
from the page memory to the
memory is not terminated within a
specified period of time.
The development from the mem-
ory into the page memory is not
terminated within a specified
period of time. The transmission
of the compressed data from
memory to memory is not termi-
nated within a specified period of
time.
While in the image read, SVV
does not turn OFF within a speci-
fied period of time and the prepa-
ration for scanning the next page
cannot be started.
Shading correction abnormality
(GA abnormality).
AOC/AGC adjustment abnormal-
ity.
• The light blocking cover at the
read section and the lens
cover are removed.
• The connector of the CCD
board is disconnected.
• The power cable of the CCD
board is unplugged.
• The ICP of the CCD board is
cut off.
• The light volume of the expo-
sure lamp is excessive.
• The exposure lamp does not
light up.
The adjustment data evacuated
by resolutions is not available.
A density conversion gamma
curve cannot be created normally.
13. MALFUNCTION CODE
Resulting Estimated abnormal parts
operation
If there is a Printer control board
sheet of paper (PRCB)
being printed, Overall control board
the main body (OACB)
completes the OACB program
paper exit
before stopping
operations.
Immediately to
turn OFF the
main relay (RL1).
Overall control board
(OACB)
Overall control board
(OACB)
OACB program
CCD board (CCDB)
Exposure lamp (L1)
Error code is not Overall control board
displayed on the (OACB)
operation panel,
but displayed
only on the data
collection, the
list output and
CSRC.
485