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  2. Photocopier - Wikipedia

    en.wikipedia.org/wiki/Photocopier

    Photocopier. A photocopier (also called copier or copy machine, and formerly Xerox machine, the generic trademark) is a machine that makes copies of documents and other visual images onto paper or plastic film quickly and cheaply. Most modern photocopiers use a technology called xerography, a dry process that uses electrostatic charges on a ...

  3. Sharp Corporation - Wikipedia

    en.wikipedia.org/wiki/Sharp_Corporation

    Sharp Corporation. Sharp Corporation (シャープ株式会社, Shāpu Kabushiki-gaisha) is a Japanese electronics company. [4][5] It is headquartered in Sakai, Osaka and was founded by Tokuji Hayakawa in 1912 in Honjo, Tokyo and established as the Hayakawa Metal Works Institute in Abeno, Osaka in 1924. [6] Since 2016, it is majority owned by ...

  4. Light scanning photomacrography - Wikipedia

    en.wikipedia.org/wiki/Light_scanning_photo...

    A camera mounted on a stable stand such as a tabletop copy stand. In 1991, Sharp and Kazilek described their SLP system that used three Kodak Ektagraphic slide projectors with zoom lenses to create a thin plane of light. The projectors each had a slide mount with two razor blades placed edge-to-edge to create a thin slit for the light to pass ...

  5. Sharp X1 - Wikipedia

    en.wikipedia.org/wiki/Sharp_X1

    The X1 (エックスワン, Ekkusuwan), sometimes called the Sharp X1 [1] or CZ-800C [2], is a series of home computers released by Sharp Corporation from 1982 to 1988. [1] It is based on a Zilog Z80 CPU .

  6. Sharp MZ - Wikipedia

    en.wikipedia.org/wiki/Sharp_MZ

    History. CPU Sharp LH0080A (Z80A compatible) Although commonly believed to stand for "Microcomputer Z80 ", the term MZ actually has its roots in the MZ-40K, a home computer kit produced by Sharp in 1978 which was based on Fujitsu 's 4-bit MB8843 processor and provided a simple hexadecimal keypad for input. This was soon followed by the MZ-80K ...

  7. Unsharp masking - Wikipedia

    en.wikipedia.org/wiki/Unsharp_masking

    Unsharp masking (USM) is an image sharpening technique, first implemented in darkroom photography, but now commonly used in digital image processing software. Its name derives from the fact that the technique uses a blurred, or "unsharp", negative image to create a mask of the original image. The unsharp mask is then combined with the original ...

  8. 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 ...

  9. Mimeograph - Wikipedia

    en.wikipedia.org/wiki/Mimeograph

    t. e. A mimeograph machine (often abbreviated to mimeo, sometimes called a stencil duplicator or stencil machine) was a low-cost duplicating machine that worked by forcing ink through a stencil onto paper. [1] The process was called mimeography, and a copy made by the process was a mimeograph. Mimeographs, along with spirit duplicators and ...

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