Ti Halftoning And Dropout; Brightness; Cropping; Halftoning And Dropout - Epson ES-800C User Manual

For nearly all uses, none is the best setting for these. In case
you have special needs that require halftoning at the time of
scanning, see the Appendix for technical information on
halftoning, dithering, and dropout on the ES-8OOC.
The minus numbers lighten the image, the plus numbers
darken the image. To lighten a dark original use -1 to -3, or to
darken a light original use +1 to +3. Usually you should leave
this setting at zero.
Use the default or CRT display.
Use the default or CRT Display B.
If you know you are going to use only part of an original, use
your software's cropping tools before you scan (if possible) to
select only the part of the image that you will use. This will
make your image file smaller.
3-12 Scanner Basics