Panasonic KV-S7065C Reference Manual page 36

TWAIN configuration method
1 Select Black and White or Automatic from the [Image Type] list box in the
[TWAIN] dialog box.
2 Click the [Image Enhance] or [Binary Image] tab, and select the desired
Halftone (dither) pattern from the [Halftone] list box.
To set duplex scanning where the front side and back side are different, set the
[Advanced Image Enhancements] check box to on, and set the [Front/Back
Same Settings] check box of the [Binary Image] tab to off.
36