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HP ScanJet
ScanJet is a line of Desktop computer, desktop Flatbed scanner, flatbed and Sheetfed scanner, sheetfed image scanners originally sold by Hewlett-Packard (HP), later HP Inc., since 1987. It was the first commercially widespread image scanner on the market, as well as one of the first scanners aimed at the small office/home office market. It was originally designed to compliment the company's HP LaserJet, LaserJet series of laser printers and allowed HP to compete in the burgeoning desktop publishing market of the 1980s. The grayscale-only ScanJet Plus, co-developed with Canon Inc., Canon and released in 1989, was a massive commercial success and had a wide influence in scanner design. For almost a decade at the low end of the market, the ScanJet Plus was a De facto standard, ''de facto'' standard for the specifications of scanner hardware. Starting in 1991, models of ScanJet were released that could scan in full color. Updates to the ScanJet line have been sporadic since the 2010s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Image Scanner
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. The most common type of scanner used in the home and the office is the flatbed scanner, where the document is placed on a glass bed. 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. Scans are typically downloaded to the computer that the scanner is connected to, although some scanners are able to store scans on standalone Flash memory, flash media (e.g., memory cards and USB flash drive, USB drives). Modern scanners typically use a charge-coupled device (CCD) or a contact image sensor (CIS) as the image sensor, whereas drum scanners, developed earlier and still used for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
