Visioneer OneTouch 7400 ユーザーズマニュアル

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CANS
You can select new settings before scanning to adjust how you want to 
scan a particular item. 
To select the scanner settings before you scan:
1. On the Scan using Visioneer OneTouch 7400 window, select the 
Custom Settings button, and then click Adjust the quality of the 
scanned picture
.
The Advanced Properties dialog box opens.
2. Select the options for scanning.
Brightness and Contrast—Drag the sliders to the right or left to 
adjust the brightness and contrast of the scanned image. The 
Contrast setting does not apply to Black and White picture or text.
Resolution (DPI)—Choose the dots per inch (dpi) of resolution 
from the drop-down list. The maximum resolution is 600 dpi, the 
minimum is 75 dpi. The higher the dpi setting, the sharper and 
clearer the scanned image. However, higher dpi settings take longer 
to scan and produce larger files for the scanned images.
Picture type—Select the appropriate type from the drop-down list.
3. Click OK.
The Custom Settings button is set to scan with the new options. If 
you want to reset the settings and start over, click Reset.