Instructs the scanner to perform a 75 dots per inch (dpi) resolution, 100% scale, in Line Art composition.
A preview is effected by the Threshold setting and the Graymap setting. Typically, Preview is used to obtain a rough scan image to set scan areas prior to using Scan.
A preview scans the entire scanner glass, ignoring any scan areas set in the Scanner window.
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This setting instruct the scanner how to determine whether a scanned pixel should be black or white. The setting determines the density at which the scanner detects a block dot. The Threshold setting affects line art composition scans, conversions of grayscale images to line art, previews and adaptive filtering.
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Click an item in the Scan Control Panel you would like information about.