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A handheld scanner (Logitech ScanMan Color) A handheld scanner is a type of scanner that must be manually dragged or gilded by hand across the surface of the object to be scanned. Scanning documents in this manner requires a steady hand, as an uneven scanning rate produces distorted images. [41]
2. Canon imageFORMULA R40. The best scanner for documents if you don't need Wi-Fi. Connection: USB | Max resolution: 600dpi | Used to scan: Standard A4 documents,thick and thin papers like ID ...
Video of the process of scanning and real-time optical character recognition (OCR) with a portable scanner. Optical character recognition or optical character reader (OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and ...
The first mark sense scanner was the IBM 805 Test Scoring Machine; this read marks by sensing the electrical conductivity of graphite pencil lead using pairs of wire brushes that scanned the page. In the 1930s, Richard Warren at IBM experimented with optical mark sense systems for test scoring, as documented in US Patents 2,150,256 (filed in ...
Popular ScanSnap models include the S1300, a feature-rich scanner that can scan double-sided color originals, [2] and the S1100, one of the world's smallest scanners. [3] By September 2018, ScanSnap had sold more than five million units globally since 2001, [ 4 ] and the ScanSnap brand reached the age of twenty years on July 10, 2021.
The IBM 1428 can read alphabetic and numeric scan data from printed documents like payment stubs, but is limited to reading a special font. [2] [5] IBM claimed it is suitable to scan documents such as: "insurance premium notices, charge sales invoices, operations and route slips, payroll and dividend checks and mail orders". [30]
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