Printing And Checking The Test Pattern - Ricoh Aficio 480W Dolphin-C2 Service Manual

28 April 2005

Printing and Checking the Test Pattern

1. Feed any wide original 914 mm (36") wide and at least 297 mm (11") long. (A
blank sheet cut from the roll is sufficient.) After a few seconds, the IPU Test
Pattern prints.
2. Fold the printed pattern and measure 150 mm (about 6") to the left and right
from the center fold
The LPH has three sections: LPH1 on the left, LPH2 in the center, and LPH 3
on the right.
The LEDs overlap slightly where the segments are joined at LPH1, LPH2 [A],
and at LPH2, LPH3 [B].
If the lines are faint and appear neither white nor black, the LPH is adjusted
correctly.
[B]
[A]
3-63
ADJUSTMENTS
B010R563.BMP
B188R902.WMF