Ricoh G176 Service Manual page 51

2. Check these test patterns. If the laser beam pitch is not correct, the images are as
follows.
Cross-stitch pattern: Vertical black strips seem to appear.
Argyle pattern: The density of the diagonal lines is light or the lines have
disappeared.
3. Adjust the LD unit holder position: Tighten or loosen the screw [C] (see the previous
page) until the printout appears as follows.
Cross-stitch pattern: The thin lines are of uniform thickness (no striping effect
should appear on the printout).
Grid pattern: The diagonal lines appear clearly and are of normal density.
SM 3-11
Laser Unit
G176/G177/G176L