Ricoh PRIPORT VT 2000 Series Service Manual page 228

3.1.4 Scan Line Position Adjustment
Edge of Lower
Original
Guide Plate
16 mm
Purpose: To ensure that CCD alignment is perpendicular to the original feed
direction.
1. Set the test chart so that the black line is positioned 16 mm away from
the edge of the lower original guide plate as shown.
2. Press the Print Start key to turn on the fluorescent lamp and confirm that
the waveform is similar to the above illustration.
3. If incorrect, loosen the mounting screws [A] fixing adjusting knob [B] and
the mounting screws [C] of the CCD board and adjust the CCD position
by turning the adjusting knob.
4. Tighten the mounting screws [B] and [C]. Then reconfirm the waveform.
Test Chart R-21
1 mm
Black Line
5-15
16 mm
28 February '91
[B]
[A]
[C]