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e-STUDIO160/200/250 ADJUSTMENT ITEMS 1 - 84 December 2002 TOSHIBA TEC
(c) Adjusting the CCD unit
1. Remove original glass. (See Fig. 7-8-7 of the Service Manual)
2. Remove the blind plate. (See Fig. 7-8-16 and 7-8-17 of the Service Manual)
3. Place the CCD jig on CCD unit and loosen 3 screws.
4. Using the marks on the scanner base as a guide, adjust the CCD unit in either forward or backward
direction.
The following table shows the error in the reproduction ratio between the copies and actual rulers
compared to be measured, and the amount of adjustment of the CCD unit.
5. If the copy image is enlarged, move the unit to
the right for adjustment.
Reproduction-ratio Amount of Reproduction-ratio Amount of
error adjustment error adjustment
-1.2% 4.77 mm 0.1% -0.39 mm
-1.1% 4.37 mm 0.2% -0.78 mm
-1.0% 3.98 mm 0.3% -1.16 mm
-0.9% 3.58 mm 0.4% -1.55 mm
-0.8% 3.18 mm 0.5% -1.94 mm
-0.7% 2.78 mm 0.6% -2.33 mm
-0.6% 2.39 mm 0.7% -2.71 mm
-0.5% 1.99 mm 0.8% -3.10 mm
-0.4% 1.59 mm 0.9% -3.49 mm
-0.3% 1.19 mm 1.0% -3.88 mm
-0.2% 0.80 mm 1.1% -4.26 mm
-0.1% 0.40 mm 1.2% -4.65 mm
0.0% 0.00 mm
Fig. 1-8-28
065-04-2