Panasonic KV-S7065C Reference Manual page 41

TWAIN configuration method
1 Click the [Area] tab in the [TWAIN] dialog box.
2 Select the Halftone (dither) pattern from the [Halftone] list box in the [Sub Area]
section.
3 Set the [Enable] check box to on and set X, Y, Image Width, Image Length and
Brightness of the sub areas for sub areas 1 to 3.
If the preview window is displayed, the area can also be specified by dragging
the preview window.
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