Operation Manual

Understanding EPSON TWAIN Pro Features 2-31
Click the Image Controls button on the Preview window to view
the following dialog box.
Note:
❏ The Image Controls button appears dimmed and is not available
when TET (Text Enhancement Technology) is selected in the Image
Type dialog box.
❏ The Image Controls settings are optimized automatically when you
scan without previewing.
❏ If Pixel Depth is set to Black & White and Halftone is set to None
in the Image Type dialog box, all the settings except Threshold
appear dimmed and cannot be selected.
❏ You can see the effects of the Image Controls settings in the Preview
window.
Exposure:
The Exposure setting lightens or darkens an image. You can
select from -10 (darkest) to 20 (brightest) by moving the slider.