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  2. Laser printing - Wikipedia

    en.wikipedia.org/wiki/Laser_printing

    e. Laser printing is an electrostatic digital printing process. 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. [1] The drum then selectively collects electrically charged ...

  3. History of printing - Wikipedia

    en.wikipedia.org/wiki/History_of_printing

    The HP LaserJet printer was quickly followed by other laser printers from Brother Industries, IBM, and others. Most noteworthy was the role the laser printer played in popularizing desktop publishing with the introduction of the Apple LaserWriter for the Apple Macintosh, along with Aldus PageMaker software, in 1985.

  4. Laser engraving - Wikipedia

    en.wikipedia.org/wiki/Laser_engraving

    Laser engraving is the practice of using lasers to engrave an object. Laser marking, on the other hand, is a broader category of methods to leave marks on an object, which in some cases, also includes color change due to chemical/molecular alteration, charring, foaming, melting, ablation, and more. [1] The technique does not involve the use of ...

  5. List of laser types - Wikipedia

    en.wikipedia.org/wiki/List_of_laser_types

    Printing and typesetting applications, fluorescence excitation examination (i.e. in U.S. paper currency printing), scientific research. Helium–mercury (HeHg) metal-vapor laser 567 nm, 615 nm (Rare) Scientific research, amateur laser construction. Helium–selenium (HeSe) metal-vapor laser up to 24 wavelengths between red and UV

  6. HP LaserJet - Wikipedia

    en.wikipedia.org/wiki/HP_LaserJet

    LaserJet as a brand name identifies the line of laser printers marketed by the American computer company Hewlett-Packard (HP). The HP LaserJet was the world's first commercially successful laser printer. [1] Canon supplies both mechanisms and cartridges for most HP laser printers; some larger A3 models use Samsung print engines.

  7. Laser - Wikipedia

    en.wikipedia.org/wiki/Laser

    The word laser is an anacronym that originated as an acronym for light amplification by stimulated emission of radiation. [1] [2] The first laser was built in 1960 by Theodore Maiman at Hughes Research Laboratories, based on theoretical work by Charles H. Townes and Arthur Leonard Schawlow.

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