*1 - Optical resolution is a measure of maximum hardware sampling resolution, based on ISO 14473 standard.
*2 - Preprocessing time is not included.
*3 - Colour document scan speed is measured with ISO/IEC 24735 Annex C Test Chart A. Scan speed indicates the time measured between pressing the scan button of the scanner driver and the on-screen status display turns off. Scan speed may vary depending on system configuration, interface, software, scan mode settings and document size etc.
*4 - The fastest speed in Hi-Speed USB on Windows PC. Transfer time to computer is not included.
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