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These models of ScanJet were HP's first standalone sheetfed scanners that the company had released. [50] The ScanJet 4s was a rebadge of Visioneer's PaperPort scanner, which was a low-cost, slimline sheetfed unit. The ScanJet 4s had a limited feature set compared to the PaperPort but was less expensive. [51]
A sheetfed scanner, which moves the page across an image sensor using a series of rollers, may be used to scan one page of a document at a time or multiple pages, as in an automatic document feeder. A handheld scanner is a portable version of an image scanner that can be used on any flat surface.
Reverse automatic document feeder A scanner with a duplexing automatic document feeder A Konica Minolta photocopier with an automatic document feeder in use. In multifunction or all-in-one printers, fax machines, photocopiers and scanners, an automatic document feeder or ADF is a feature which takes several pages and feeds the paper one page at a time into a scanner or copier, [1] allowing the ...
Charge-coupled devices (CCDs), the other kind of sensor often used in scanners, use mirrors to bounce light to a stationary sensor. Scanners using CISs are much smaller than ones that use CCDs, use typically a tenth as much power, and are particularly suitable for low power and portable applications, often powered over USB. [1] Scanner unit ...
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Visioneer is a Xerox licensee, licensed to build, sell and support stand-alone document scanners. Founded in March 1992 by Pierre-Alain Cotte, Visioneer introduced a sheetfed scanner called the PaperMax. [1] The scanner weighed just 2.5 pounds and fit between a keyboard and monitor. [2] A typical document could be scanned in about six seconds.
As of 2021 the supplied printer-drivers support a total of 3,088 HP printer models; [3] many of these for low-end models are free and open-source (FOSS), licensed under MIT, BSD, and GPL licenses, but others (including all color laser MFC printers on the market for years) require proprietary binary blobs ("plug-ins").
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