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Scanning
40
"Professional" Scan Preferences ("Main" Tab) (part 2)
Colour Mode
Setting Explanation Possible usage
Full Colour Scans a document according to the computer's ability to
display 16,770,000 colours (each containing 256
individual tones). When using a computer that can
display 65,000 colours or more, colours closely
resembling those shown in the document will be
selected.
Select this option when working with photographs or documents that
require professional results.
256 Colour Scans a document as image data using 256 colours of
16,770,000 available colours of a computer.
Select this option when you send the data through the Internet, as
the size of 256 colour data is smaller than full colour data.
Greyscale Makes a greyscale image. Produces an image like a
black and white photograph, in 256 levels.
Select this option when you send a document, which has
photograph or illustration such as pamphlets or catalogues, through
facsimile.
Mono Diffusion Scans a document using black and white, creating a half
tone image.
Select this option when you scan the originals containing the shaded
drawings. This option is also useful when you print out the scanned
data in monochrome, because the file size is small.
Mono 2 gradation Scans a document into black and white using the
threshold set on "Image" tab.
Select this option when you scan an image, which consists of
characters and line art. This option is also useful when you need to
recognise characters to use OCR software.
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