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ESC/P, short for Epson Standard Code for Printers and sometimes styled Escape/P, is a printer control language developed by Epson to control computer printers. It was mainly used in Epson's dot matrix printers, beginning with the MX-80 in 1980, as well as some of the company's inkjet printers. [1] [2] It is still widely used in many receipt ...
Their LA30 30 character/second (CPS) dot matrix printer, the first of many, was introduced in 1970. In the mid-1980s, dot-matrix printers were dropping in price, [3] [a] and began to outsell daisywheel printers, due to their higher speed and versatility. [22] The Apple ImageWriter was a popular consumer dot matrix printer in the 1980s until the ...
Near letter-quality is a form of impact dot matrix printing. What The New York Times called "dot-matrix impact printing", [2] was deemed almost good enough to be used in a business letter [5] Reviews in the later 1980s ranged from "good but not great" [6] to "endowed with a simulated typewriter-like quality".
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 ...
ImageWriter LQ (Letter Quality) is a 27-pin dot matrix printer introduced in 1987 by Apple Computer, Inc. The print quality was comparable to competing 24-pin dot-matrix printers, and offered graphics at 320 × 216 DPI. Guaranteed compatibility with both Apple II and Mac computers made it popular in schools. [citation needed]
This contrasts with the 300–360 (or 240) dpi of early models, and the approximate 200 dpi of dot-matrix printers and fax machines, which gave faxed and computer-printed documents—especially those that made heavy use of graphics or coloured block text—a characteristic "digitized" appearance, because of their coarse, obvious dither patterns ...