Ricoh C211, Service Manual

Page: 378 / 769

1.4 SCAN LINE POSITION ADJUSTMENT
Set the R-21 test chart so that the 1 mm black line is positioned 16 mm away
from the edge of the lower original guide plate.
Adjust the CCD board position until the shape of the wave is similar to the
illustration above.
1.5 READING START POSITION ADJUSTMENT (In The Main
Scan Direction)
Set the test chart so that the center line, located at the leading edge of the
test chart, is positioned above the original leading edge sensor actuator.
Then feed the test chart until the center line can be read.
Adjust the CCD board position until the above wave is displayed.
[E]
[D]
L = L’
L L’
C224 5-4 SM