Sharp AR-650, Руководство по обслуживанию

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1 - 67 ADJUSTMENT
(4) Slide the lens unit either backwards or forwards using the scales on the scanner base as a guide. The
following table shows the estimated lens unit movement to adjust the reproduction ratio error be-
tween the copy and the actual scale compared to be measured.
Reproduction Estimated Amount
Ratio Error of Adjustment
0.1 % 0.5 mm
0.2 % 1.1 mm
0.3 % 1.6 mm
0.4 % 2.1 mm
0.5 % 2.6 mm
0.6 % 3.2 mm
0.7 % 3.7 mm
0.8 % 4.2 mm
0.9 % 4.8 mm
1.0 % 5.3 mm
Notes: 5. If the finer adjustment than that in the above is required, refer to “Polygonal motor 600 dpi/
PPC Adjutment”.
(5) Re-attach the lens cover and original glass, make a copy and check the reproduction ratio.
(6) Tighten the 2 lens unit screws to fix in place.
(7) Remove the pins for adjusting the lens magnification.
(8) Re-attach the lens cover and original glass.
Large reproduction
ratio Small reproduction
ratio
Lens unit
Feed side
Movement direction
Exit side
Scale