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  2. List of printing protocols - Wikipedia

    en.wikipedia.org/wiki/List_of_printing_protocols

    A printing protocol is a protocol for communication between client devices (computers, mobile phones, tablets, etc.) and printers (or print servers).It allows clients to submit one or more print jobs to the printer or print server, and perform tasks such as querying the status of a printer, obtaining the status of print jobs, or cancelling individual print jobs.

  3. Mirror driver - Wikipedia

    en.wikipedia.org/wiki/Mirror_driver

    A mirror driver is a display driver for a virtual device that mirrors the drawing operations of one or more additional physical display devices.. When video mirroring is active, each time the system draws to the primary video device at a location inside the mirrored area, a copy of the draw operation is executed on the mirrored video device in real-time.

  4. Laser printing - Wikipedia

    en.wikipedia.org/wiki/Laser_printing

    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]

  5. Laser scanning - Wikipedia

    en.wikipedia.org/wiki/Laser_scanning

    Laser scanning is the controlled deflection of laser beams, visible or invisible. [1] Scanned laser beams are used in some 3-D printers, in rapid prototyping, in machines for material processing, in laser engraving machines, in ophthalmological laser systems for the treatment of presbyopia, in confocal microscopy, in laser printers, in laser shows, in Laser TV, and in barcode scanners.

  6. Non-reversing mirror - Wikipedia

    en.wikipedia.org/wiki/Non-reversing_mirror

    Comparison of reflections of a pen in an ordinary mirror (left) and two perpendicular mirrors forming the first type of non-reversing mirror (right). The latter also illustrates the visible line in the middle if measures are not taken to minimise it. A non-reversing mirror can be made by connecting two regular mirrors at their edges at a 90 ...

  7. Liquid-mirror telescope - Wikipedia

    en.wikipedia.org/wiki/Liquid-mirror_telescope

    The mercury mirror of the Large Zenith Telescope in Canada was the largest liquid-metal mirror ever built. It had a diameter of 6 meters and rotated at a rate of about 8.5 revolutions per minute. It was decommissioned in 2016. [4] This mirror was a test, built for $1 million, but it was not suitable for astronomy because of the test site's weather.