Resolution - Samsung SF-5800P User Manual

Gray 256 Scales
Images scanned in this mode will show up to 256 shades of gray. If high
quality copies of photographs or other continuous tone originals are
desired, Gray 256 Scales is the best choice.
Gray 256 Scales provides accurate representation of black and white, and
intermediate gray shades between black and white, for each individual
pixel. It actually provides 256 shades, representing white by the value 255
and black by the value zero, with progressively lighter intermediate shades
of gray by values from 1 through 254.
Halftone B/W
This scan mode uses various combinations of black and white pixels to
simulate gray scales. While not the same level of image quality as the Gray
256 Scales image type, this image type is good for continuous tone images
where smaller file size is more important than ideal image quality.
Lineart B/W
Lineart B/W mode is generally the best choice for printed text or pen-and-
ink drawings. Like the Halftone B/W image type, this image type defines
the state of each pixel in the image with one bit that is either on or off. For
this reason, files created in this mode will require approximately the same
amount of disk space as a Halftone B/W file.
In both Halftone and Lineart modes, the resolution can only be set to
150, 200, or 300 dpi.

Resolution

The resolution setting determines the amount of information the scanner
will capture in a resulting scanned image.
3.5
Scanning