Service Call Conditions
D096 3-4 SM Appendix
145 D
Automatic SBU adjustment error
During the automatic SBU
adjustment, the machine
detects that the white level
read from the white plate or
paper is out of range.
(SP4015)
Exposure lamp defective
Dirty white plate
Incorrect position or width of white
plate scanning (SP4015)
BICU board defective
SBU board defective
302 B
Charge roller current leak
A current leak signal for the
charge roller is detected.
Charge roller damaged
High voltage supply board defective
Poor connection of the PCU
320 B
Polygonal mirror motor error
The polygon mirror motor
does not reach operating
speed within 10 seconds
after the motor ON signal is
sent, or does not turn on
within one of the 200 ms
check intervals during
operation.
Polygon mirror motor defective
Poor connection between the
polygonal mirror motor driver and the
BICU board
Damaged cable between BICU and
polygonal mirror motor driver
BICU board defective
321 C
No laser writing signal (F-GATE) error
The laser-writing signal
(F-GATE) fails to turn Low
after the laser crosses 5
mm on the drum surface
from the laser writing start
position.
BICU board defective
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