Epson 2500 - Manual (Page 79)

Scanning 73
3. Click the Auto Locate button to automatically set the
scan area for your image. (To scan only part of your image,
see page 75.)
4. To optimize your image automatically, click the Auto
Exposure button. Your TWAIN software adjusts color,
tone, contrasts, and highlights for you. Skip to step 8 if you
choose this setting.
5. To adjust the highlights and contrast in your image, click
the Image Controls button. You see the following box:
Lighten or darken
your image.
Adjust the midtones.
Adjust the brightest
parts of the image.
Adjust the darkest
parts of the image.
Adjust gray shades
so that they contain
more black or white
(mainly for text in OCR).