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TWAIN configuration method
1
Set the [Advanced Image Enhancements] check box in the [TWAIN] dialog box
to on.
2
Click the [Color Image] tab.
3
When the [Chroma] slider bar is moved to the right, the colors become more
vivid; when it is moved to the left, they become grayer. Alternatively, a number
(1 to 255) can be entered directly in the [Chroma] edit box.
4
If different settings are to be used for the front and back sides with Both
scanning, set the [Front/Back Same Setting] check box to off, and then operate
the slider bar.