Ricoh Aficio IS420 Benutzerhandbuch - Seite 32
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Image Scanner User's Manual
¡ Scanning composition
Function:
Usage:
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03_IS430-BODY
You can scan using one of three compositions; binary, halftone, or multi-value.
Binary scanning records only black and white from the original. Halftone scan-
ning records gray shades on the original using a pattern of black and white dots to
represent these shades. Multi-value scanning records grays over 16, 64, or 256
levels.
Use binary scanning to scan images with no gray shading, such as text or line art.
Use halftone scanning to scan an image with gray shading such as a photograph, to
be printed or displayed on a monochrome device, such as a laser printer.
Use multi-value scanning to scan an image with gray shading, such as a photograph,
to be printed or displayed on a gray scale device.
Refer to the following pages for details.
Original
Halftone scanned image
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Binary scanned image
Multi-value scanned image
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