Ricoh G188 Service Manual page 136

Laser Optics
3. Polygon mirror motor holder [A] (
4. Polygon mirror motor [B] (
After installing the polygon mirror motor:
1) Do the "Forced Line Position Adj. Mode c" (SP2-111-3).
2) Then do the "Forced Line Position Adj. Mode a" (SP2-111-1).
To check if SP 2-111-1 was successful, watch the screen during the process. A message is
displayed at the end. Also, you can check the result with SP 2-194-10 to -12.
After you replace the motor, do the adjustments in the following section of the manual:
Image Adjustment – Registration.
G188/G189
x 2)
x 4, x 1)
4-22 SM