Ricoh PRIPORT VT 2000 Series Service Manual page 233

28 February '91
3.2 IMAGE MAGNIFICATION ADJUSTMENT
(In The Sub-scan Direction)
DIP SW400
Purpose: To ensure that the image magnification lengthwise is 100 % ± 0.5
% when using the full size mode.
1. Press the Full Size (100 %) key.
2. Make prints of the test chart.
3. Make sure that the image length is 100 % ± 0.5 % by comparing the
prints with the test chart.
4. If the prints are not within specification, open the front cover of the
machine and adjust the magnification ratio using DIP SW400 on the
image processing board.
<DIP SW / Correction Ratio>
DIP 400-1 DIP 400-2
OFF
Red:
OFF
OFF
OFF
ON
ON
Enl:
ON
ON
DIP
400-3
OFF OFF
ON OFF
OFF ON
ON ON
OFF OFF
ON OFF
OFF ON
ON ON
( Length of Test Chart )
Zoom
=
( Length of Print Image )
Ratio
5-20
100 %
99.25 %
98.77 %
98.25 %
100 %
100.75 %
101.23 %
101.75 %
x 100