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  2. Printer tracking dots - Wikipedia

    en.wikipedia.org/wiki/Printer_tracking_dots

    Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and photocopiers produce on every printed page that identifies the specific device that was used to print the document.

  3. Postage meter - Wikipedia

    en.wikipedia.org/wiki/Postage_meter

    The meter stamp created by a modern franking machine Modern Pitney Bowes franking machine. The postage meter normally consists of a keyboard for entering the postage, three seals, and a stamping mechanism. Years ago, users needed to take their meter to a postal office in order to add additional postage (sometimes called a "reset" or "refill").

  4. Automatic document feeder - Wikipedia

    en.wikipedia.org/wiki/Automatic_document_feeder

    Reverse automatic document feeder A scanner with a duplexing automatic document feeder A Konica Minolta photocopier with an automatic document feeder in use. In multifunction or all-in-one printers, fax machines, photocopiers and scanners, an automatic document feeder or ADF is a feature which takes several pages and feeds the paper one page at a time into a scanner or copier, [1] allowing the ...

  5. Printer (computing) - Wikipedia

    en.wikipedia.org/wiki/Printer_(computing)

    A virtual printer is a piece of computer software whose user interface and API resembles that of a printer driver, but which is not connected with a physical computer printer. A virtual printer can be used to create a file which is an image of the data which would be printed, for archival purposes or as input to another program, for example to ...

  6. Security printing - Wikipedia

    en.wikipedia.org/wiki/Security_printing

    The advantage of a digital press is that in a single pass through the printer a void pantograph with all the variable data can be printed on plain paper. Copy-evident paper, sometimes marketed as ‘security paper’, is pre-printed void pantograph paper that was usually produced on an offset or flexographic press. The quality of the void ...

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