Any printer that produces characters made up of dots using a wire-pin print head. The quality of output from a dot-matrix printer depends largely on the number of dots in the matrix, which might be low enough to show individual dots or might be high enough to approach the look of fully formed characters. Dot-matrix printers are often categorized by the number of pins in the print head—typically 9, 18, or 24. Compare daisy-wheel printer, laser printer.
A printer in which each character is represented by a pattern of dots; SYN. matrix printer, wire matrix printer, wire printer, dot printer, stylus printer.
Computer printer that produces each character individually by printing a pattern, or matrix, of very small dots. The printing head consists of a vertical line or block of either 9 or 24 printing pins. As the printing head is moved from side to side across the paper, the pins are pushed forward selectively to strike an inked ribbon and build up the dot pattern for each character on the paper beneath.
A dot matrix printer is more flexible than a daisywheel printer because it can print graphics and text in many different typefaces. It is cheaper to buy and maintain than a laser printer or ink-jet printer, and, because its pins physically strike the paper, is capable of producing carbon copies. However, it is noisy in operation and cannot produce the high-quality printing associated with the nonimpact printers. + prikaži više

A computer peripheral that puts text or a computer-generated image on paper or on another medium, such as a transparency film. Printers can be categorized in any of several ways: impact versus nonimpact; print technology; character formation; method of transmission; method of printing; print capability; and print quality.
Impact versus nonimpact The most common distinction is impact versus nonimpact. Impact printers physically strike the paper and are exemplified by pin dot-matrix printers and daisy-wheel printers; nonimpact printers include every other type of print mechanism, including laser, ink-jet, and thermal printers.
Print technology Chief among types of print technology are pin dot-matrix, ink-jet, laser, thermal, and (although somewhat outdated) daisy-wheel or thimble printers. Pin dot-matrix printers can be further classified by the number of pins in the print head: 9, 18, 24, and so on.
Character formation Fully formed characters made of continuous lines (such as those produced by a daisy-wheel printer) versus dot-matrix characters composed of patterns of dots (such as those produced by standard dot-matrix, ink-jet, and thermal printers). Laser printers, while technically dot-matrix are generally considered to produce fully formed characters because their output is very clear and the dots are extremely small and closely spaced.
Method of transmission Parallel (byte-by-byte transmission) versus serial (bit-by-bit transmission). These categories refer to the means by which output is sent to the printer rather than to any mechanical distinctions. Many printers are available in either parallel or serial versions, and still other printers offer both choices, yielding greater flexibility in installation options.
Method of printing Character by character, line by line, or page by page. Character printers include standard dot-matrix, ink-jet, thermal, and daisy-wheel printers. Line printers include the band, chain, and drum printers that are commonly associated with large computer installations or networks. Page printers include the electrophotographic printers, such as laser printers.
Print capability Text-only versus text-and-graphics. Text-only printers, including most daisy-wheel and thimble printers, and some dot-matrix and laser printers, can reproduce only characters for which they have matching patterns, such as embossed type or internal character maps. Text-and-graphics printers—dot matrix, ink-jet, laser, and others— can reproduce all manner of images by each as a pattern of dots.
Print quality Draft versus near-letter quality versus letter quality.
1. Someone whose occupation is printing; SYN. pressman.
2. A machine that prints; SYN. printing machine.
3. (Computer science) An output device that prints the results of data processing.
In computing, an output device for producing printed copies of text or graphics. Types include the daisywheel printer, which produces good-quality text but no graphics; the dot matrix printer, which produces text and graphics by printing a pattern of small dots; the ink-jet printer, which creates text and graphics by spraying a fine jet of quick-drying ink onto the paper; and the laser printer, which uses electrostatic technology very similar to that used by a photocopier to produce high-quality text and graphics.
Printers may be classified as impact printers (such as daisywheel and dot-matrix printers), which form characters by striking an inked ribbon against the paper, and nonimpact printers (such as ink-jet and laser printers), which use a variety of techniques to produce characters without physical impact on the paper.
A further classification is based on the basic unit of printing, and categorizes printers as character printers, line printers, or page printers, according to whether they print one character, one line, or a complete page at a time. + prikaži više