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Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) 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 ...
Most printers print, in addition to the document contents requested, tiny yellow dots containing the printer serial number and a time stamp. [14] These are not microdots, but arrays of difficult-to-see dots across the printed page in an encoded pattern.
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.
Dot matrix printers are divided into two main groups: serial dot matrix printers and line matrix [1] printers. Line matrix mechanism. A serial dot matrix printer has a print head that runs back and forth, or in an up and down motion, on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper, much like the print ...
Dot matrix printers are a type of impact printer that prints using a fixed number of pins or wires [2] [3] and typically use a print head that moves back and forth or in an up-and-down motion on the page and prints by impact, striking an ink-soaked cloth ribbon against the paper. They were also known as serial dot matrix printers. [4]
The ImageWriter II is a serial based dot matrix printer that was manufactured by Apple Computer, which supported its entire computer product line when it was released in September 1985. It had several optional add-ons available, including: a plug-in network card, buffer memory card, and motorized sheet feeder.
The Line Printer Daemon protocol/Line Printer Remote protocol (or LPD, LPR) is a network printing protocol for submitting print jobs to a remote printer. The original implementation of LPD was in the Berkeley printing system in the BSD UNIX operating system; the LPRng project also supports that protocol.
Phaser brand solid ink color, dye-sublimation printers printer business acquired by Xerox Teletype Texas Instruments: serial matrix, inkjet, low-end laser, airline ticketing printer business acquired by GENICOM Toshiba: Trilog color serial matrix printers acquired by Centronics TVS Electronics dot matrix printers