Ricoh D009 - Page 200

Laser Unit
D009/D011/D012/D013/D091/D092 4-30 SM
1. Install a (new) LD unit [A] with the left side of the LD unit being lower than the right side.
(This makes this adjustment easier.)
2. Print the test pattern "Hounds Tooth Check (2-Dot Horizontal)" (No. 16 in
SP2109-001).
3. Check if the vertical stripes appear on the second pattern (counted from the leading
edge) of the printout.
 Correct: No vertical stripes appear (see the sample following this procedure.)
 Wrong: Vertical stripes appear (see the sample following this procedure.)
4. Turn the adjustor screw [B] by 90 degrees clockwise (counterclockwise).
 If the image of the printout is getting worse, try reverse rotation (clockwise
counterclockwise)
5. Print the test pattern and check it out.
6. Try steps 2 to 4 again until you get an image with no vertical stripes.
7. Reassemble the machine after completing this adjustment.
Correct: No vertical stripes appear