Ricoh G147 Service Manual page 153

revolutions.
LD drive current too high
323 D
The LD drive board output to the LD
exceeded 100 mA .
LD unit home position error 1
The LD unit home position sensor
327 D
did not detect the ON condition when
the LD unit moved to its home
position.
LD unit home position error 2
The LD unit home position sensor
328 D
did not detect the OFF condition
when the LD unit moved from its
home position.
LD unit beam pitch
adjusted incorrectly
329 D
The LD unit HP sensor
did not detect the ON
condition while changing
SM
LD drive board defective
LD unit defective (not enough
power, due to aging)
Poor connection between the LD
unit and the BICU board
BICU defective
LD unit HP sensor/harness
defective
LD unit home position sensor
defective
LD positioning motor connector
or harness loose, broken,
defective
LD unit or LD unit motor blocked
LD unit motor defective
LD unit HP sensor/harness
defective
LD unit home position sensor
defective
LD positioning motor connector
or harness loose, broken,
defective
LD unit or LD unit motor blocked
LD unit motor defective
After initialization of the SP modes,
SP2-109-3 or SP2-109-4 did not execute.
If this SC code appears at power on or
during a print job, do these two SP codes
then turn the main power off/on.
4-3 G147