Ricoh ISO1 Operation Manual - Page 61

Scanning composition

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SCANNER FEATURES Scanning composition Function Usage You can scan using one of three compositions: binary, halftone, or multi-value. Binary scanning records only black and white from the original. Halftone scanning records gray shades from the original using a pattern of black and white dots. Multi-value scanning records grays over 16, 64, or 256 levels. Use binary scanning to scan an image that has no gray shading, for example, text or lines. Use halftone scanning to scan an image that has gray shading (for example, a photograph) when you want to print or display the image on a monochrome device, such as a laser printer. Use multi-value scanning to scan an image that has gray shading when you want to print or display the image on a gray scale device. Original Binary scanned image Halftone scanned image Multi-value scanned image A-3

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SCANNER FEATURES
A-3
Scanning composition
Function
You can scan using one of three compositions: binary, halftone, or
multi-value. Binary scanning records only black and white from the
original. Halftone scanning records gray shades from the original
using a pattern of black and white dots. Multi-value scanning
records grays over 16, 64, or 256 levels.
Usage
Use binary scanning to scan an image that has no gray shading, for
example, text or lines. Use halftone scanning to scan an image
that has gray shading (for example, a photograph) when you want
to print or display the image on a monochrome device, such as a
laser printer. Use multi-value scanning to scan an image that has
gray shading when you want to print or display the image on a
gray scale device.
Halftone scanned image
Original
Binary scanned image
Multi-value scanned image