Ricoh A229 Service Manual page 343

LASER UNIT
9. Adjust the laser beam pitch position until the thin lines are of uniform thickness
(no striping effect should appear on the printout), doing steps 2, 3, and 4. (In
step 2, input a value which is estimated to be correct, then do steps 3 and 4,
then if necessary go back to step 2 and try another value.)
10. After adjusting the laser beam pitch for 400 dpi, adjust the laser beam pitch for
600 dpi, using the same procedure as for 400 dpi (use the SP modes for 600
dpi).
Adjustment not complete
A229
Feed Direction
A229R532.WMF
5-32
Adjustment complete
Feed Direction
A229R533.WMF
SM