In the 1960s, the Xerox Corporation held a dominant position in the photocopier market. Gary Starkweather (seen here in 2009) invented the laser printer. Over the decades, quality and speed have increased as prices have decreased, and the once cutting-edge printing devices are now ubiquitous. Invented at Xerox PARC in the 1970s, laser printers were introduced for the office and then home markets in subsequent years by IBM, Canon, Xerox, Apple, Hewlett-Packard and many others. Laser printing differs from traditional xerography as implemented in analog photocopiers in that in the latter, the image is formed by reflecting light off an existing document onto the exposed drum. As with digital photocopiers, laser printers employ a xerographic printing process. The drum then selectively collects electrically-charged powdered ink ( toner), and transfers the image to paper, which is then heated to permanently fuse the text, imagery, or both, to the paper. It produces high-quality text and graphics (and moderate-quality photographs) by repeatedly passing a laser beam back and forth over a negatively-charged cylinder called a "drum" to define a differentially-charged image. Inkjet printer - Inkjet printers operate by propelling variably sized droplets of liquid or molten material (ink) onto almost any sized page.Laser printing is an electrostatic digital printing process.
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cmp a high speed, high resolution computer printer that uses a light source, as a laser beam or electrically charged ions, to print a full page of text or graphics at a time Despite this complexity, very precise and clean… … Wikipedia The technique can be very technical and complex, and often a computer system is used to drive the movements of the laser head. Laser engraving - is the practice of using lasers to engrave or mark an object. The coherency, high monochromaticity, and ability to reach extremely high powers are all… … Wikipedia Laser applications - There are many scientific, military, medical and commercial laser applications which have been developed since the invention of the laser in the 1958. Printer (computing) - A modern printer with scanning/copying capability Small printer … Wikipedia
Laser printer - noun Date: 1979 a high resolution printer for computer output that xerographically prints an image formed by a laser … New Collegiate Dictionary
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Laser printer - HP LaserJet 4200 series printer, installed atop high capacity paper feeder … Wikipedia A printer controlled by a computer, using a laser beam to produce images in a fine dot matrix pattern of charge on an electrostatic drum, to which fine particles of ink are subsequently caused to adhere, and the image of which is subsequently… … The Collaborative International Dictionary of English Etymology: 1975–80 la′ser print ing, n … From formal English to slang.cmp a high speed, high resolution computer printer that uses a laser to form dot matrix patterns and an electrostatic process to print a page at a time
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