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6-12 Scanning
Gray 256 Scales
Images scanned in Gray 256 Scales mode are scanned in 256 shades of gray.
If high quality copies of photographs or other continuous tone originals are
desired, Gray 256 Shades mode 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.
In this scan mode, each pixel of the image has two possible states: on
(black) or off (white). This means that each pixel can be represented by 1
bit. For this reason, the file size is much smaller than that of a document
scanned in the Gray 256 Scales mode, which uses 8 bits to define 256
shades of gray.
Gray 256 Scales
Halftone B/W
Lineart B/W
Print the 480cx User Guide