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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 copiers produce on every printed page that identifies the specific device that was used to print the document.
Laser printers offer more precise edging and in-depth monochromatic color. In addition, color laser printers are much faster than inkjet printers, although being generally larger and bulkier. Anti-counterfeiting marks Small yellow dots on white paper, generated by a color laser printer, are nearly invisible.
Printer steganography is a type of steganography – "hiding data within data" – produced by color printers, including Brother, Canon, Dell, Epson, HP, IBM, Konica Minolta, Kyocera, Lanier, Lexmark, Ricoh, Toshiba and Xerox brand color laser printers, where tiny yellow dots are added to each page. The dots are barely visible and contain ...
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.
The Tektronix Phaser 740, released in October 1998, [1] was a series of color laser printers sold by Tektronix 's printer division, now a part of Xerox. The Phaser 740 is notable for being the industry's first true 1200×1200 dpi color laser printer. [2] The printer was available in several different configurations, from the 740L ($1499 MSRP ...
Yellow dots from a laser printer. Although not classic steganography, some types of modern color laser printers integrate the model, serial number, and timestamps on each printout for traceability reasons using a dot-matrix code made of small, yellow dots not recognizable to the naked eye — see printer steganography for details. Network
The Color LaserWriter 12/660 PS is a color laser printer introduced by Apple in October 1996. The printer became a workhorse used in Kinko's copy stores across the United States. The printer's weight, size, speed of printing, and high cost of purchase, operation, and maintenance were its chief drawbacks.
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 light-sensitive ...
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