Ricoh G147 Service Manual page 154

the LD unit position to
correct the LD position or
change the resolution
(dpi).
Polygon motor error 1: On timeout
The XSCRDY signal did not go LOW
335 D
(Active) within 10 sec. after the
polygon motor was turned on.
Polygon motor error 2: Off timeout
The XSCRDY signal did not go
336 D
HIGH (Inactive) within 3 sec. after
the polygon motor was turned off.
Polygon motor error 3: XSCRDY
signal error
The XSCRDY signal did not go
337 D
HIGH (Inactive) after the polygon
motor had been rotating normally for
200 ms.
Polygonal Mirror Motor Error 4:
338 D
Unstable Timeout
G147
If executing these two SP codes does not
solve the problem, check the LD unit drive
mechanism (the harness of the LD board or
other object could be blocking the LD drive
mechanism, preventing adjustment of the
pitch).
Do SP 5801, then do SP2109 3 and
SP2109 4 again.
Polygon motor drive board I/F
harness loose, disconnected, or
damaged
Polygon motor drive board
defective
Polygon motor defective
Polygon motor drive board I/F
harness loose, disconnected, or
damaged
Polygon motor drive board
defective
Polygon motor defective
Polygon motor drive board I/F
harness loose, disconnected, or
damaged
Polygon motor drive board
defective
Polygon motor defective
I/F harness of the polygonal
mirror motor disconnected or
4-4 SM