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A flatbed scanner (Epson Perfection V850 Pro) with its lid open. Documents or images are placed face-down on the glass bed (the platen). An image scanner (often abbreviated to just scanner) is a device that optically scans images, printed text, handwriting, or an object and converts it to a digital image.
Epson has released a firmware patch to bring the R-D1 up to the full functionality of its successor, being the first digital camera manufacturer to make such an upgrade available for free. [citation needed] In September 2012, Epson introduced a printer called the Expression Premium XP-800 Small-in-One, with the ability to print wirelessly. [20]
VueScan is intended to work with a large number of image scanners, excluding specialised professional scanners such as drum scanners, on many computer operating systems (OS), even if drivers for the scanner are not available for the OS. These scanners are supplied with device drivers and software to operate them, included in their price.
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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 ...
A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. [1] Like a flatbed scanner , it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals.
Epson developed the 3LCD color projection technology in the 1980s, and licensed it for use in LCD projectors in 1988. [234] The first color LCD video projectors were Epson's compact 3LCD-based VPJ-700, released in January 1989, [190] and an LCD color video projector released by Sharp Corporation in 1989. [235]
A ventilation/perfusion lung scan, also called a V/Q lung scan, or ventilation/perfusion scintigraphy, is a type of medical imaging using scintigraphy and medical isotopes to evaluate the circulation of air and blood within a patient's lungs, [1] [2] in order to determine the ventilation/perfusion ratio.