Service manual

ELECTRIC PARTS LIST
4-38
3 DIS./ASSEMBLY
4 ELECTRIC PARTS LIST
Main body
Image con-
trol abnor-
mality
E46-01 During image write, APC cannot be
performed for sub-scanning beam
correction.
The 12 VDC power for driving the
laser is not supplied.
The laser does not turn ON due to
defective laser, or MPC value is dif-
ferent.
The index sensor cannot detect the
laser because the polygon mirror
does not rotate, the index sensor is
displaced, or the index sensor is
defective.
If copy operation is
being performed, the
machine stops after
paper ejection.
RL1 (main) is turned
OFF.
Write section
ICB (image control board)
power connector
E46-02 Illegal address of FIFO for scanner.
During image read, image data
compression is not completed nor-
mally.
ICB (image control board)
Expansion memory
E46-03 Illegal address of FIFO for printer.
During image read, image data
decompression is not completed
normally.
E46-05 The FIFO of the compression /
expansion chip caused an error
interrupt.
E46-06 Decompression error of image
data.
E46-08 When APC is performed, the index
sensor output does not change.
Write section
ICB (image control board)
power connector
E46-12 Compression of the read image
and decompression in the page
memory are not completed within
the specified time after negation of
SVV.
ICB (image control board)
E46-13 During image read, image data
compression from the scanner to
the memory is not completed within
the specified time. Image data
decompression from the scanner
to the page memory is not com-
pleted within the specified time.
SVV is not detected within the
specified time.
PRCB (printer control
board)
ICB (image control board)
Classification
Warning
Code
Cause Machine response
Estimated
abnormal parts