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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The scanner scans the selected area with grayscale composition. Grayscale composition uses 4 bits per pixel to represent 16 different shades of gray. At a resolution of 300 dots per inch, a grayscale scan records 1200 bits of information per inch for each horizontal inch scanned, or 360,000 bits per square inch.
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Click an item in the Scan Control Panel you would like information about.