(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.

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

 

 

 

 

 

 

5.If the copy image is enlarged, move the unit to the right for adjustment.

065-04-2

Fig. 1-8-28

e-STUDIO160/200/250 ADJUSTMENT ITEMS

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December 2002 TOSHIBA TEC

Page 92
Image 92
Toshiba e-Studio160, e-Studio250, e-Studio200 manual 065-04-2