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  2. Why is the Facebook icon black? Social media users have ... - AOL

    www.aol.com/why-facebook-icon-black-social...

    That left my Facebook icon with the dark background after the app update. My phone was not in dark mode. The iOS update to 17.6.1 also was available for my phone, which I also installed.

  3. Risograph - Wikipedia

    en.wikipedia.org/wiki/Risograph

    Risograph is a brand of digital duplicators manufactured by the Riso Kagaku Corporation, [1] [2] that are designed mainly for high-volume photocopying and printing. It was released in Japan in 1980. It is sometimes called a printer-duplicator, as newer models can be used as a network printer as well as a stand-alone duplicator.

  4. Duplicating machines - Wikipedia

    en.wikipedia.org/wiki/Duplicating_machines

    The wax-supply sheet was then removed and discarded, and the other sheet (containing the images) was fastened onto the drum of the (manual or electrical) machine, with the waxed (back, or reverse-image) side out. The usual wax color was aniline purple, a cheap, moderately durable pigment that provided good contrast, though other colors were ...

  5. Heliographic copier - Wikipedia

    en.wikipedia.org/wiki/Heliographic_copier

    In the "argot" of engineers, architects and designers, the resulting plan copies coming from any type of heliographic copier no matter they were either blue or white, were traditionally called blueprints, name derived from the blue background color of the cyanotype technique, which was the previous process for obtaining blueprints, When the ...

  6. Photocopier - Wikipedia

    en.wikipedia.org/wiki/Photocopier

    The drum area not exposed to light (those areas that correspond to black portions of the original document) remains negatively charged. Developing : The toner is positively charged. When it is applied to the drum to develop the image, it is attracted and sticks to the negatively charged areas (black areas), just as paper sticks to a balloon ...

  7. Digital duplicator - Wikipedia

    en.wikipedia.org/wiki/Digital_duplicator

    Digital duplicators can provide a reliable and cost efficient alternative to toner-based copiers or offset printing equipment. [1] The digital duplicator begins by digitally scanning the original and then transferring it to a master template through a thermal imaging process. Then the master is automatically wrapped around a print cylinder ...

  8. Facebook Watch - Wikipedia

    en.wikipedia.org/wiki/Facebook_Watch

    Facebook Watch's original video content is produced for the company by others, who earn 55% of advertising revenue (Facebook keeps the other 45%). Facebook Watch offers tailored video recommendations and organizes content into categories based on metrics like popularity and user engagement. The platform hosts both short and long-form entertainment.

  9. David Gestetner - Wikipedia

    en.wikipedia.org/wiki/David_Gestetner

    David Gestetner (31 March 1854 – 8 March 1939) was the inventor of the Gestetner stencil duplicator, the first piece of office equipment that allowed production of numerous copies of documents quickly and inexpensively. He also invented a new kind of nail clipper.