Epson MX-80, a well-liked model of dot-matix printer in use for several years
The following technologies ar either obsolete, or restricted to special applications tho' most were, at just once, in widespread use.
Impact printers deem a physical impact to transfer ink to the media. The printer uses a print head that either hits the surface of the ink ribbon, pressing the ink ribbon against the paper (similar to the action of a typewriter), or hits the rear of the paper, pressing the paper against the ink ribbon (the IBM 1403 for example). virtually the matrix printer deem the employment of absolutely shaped characters, letterforms that represent every of the characters that the printer was capable of printing. additionally, most of those printers were restricted to monochrome, or generally two-color, printing during a single fount at just once, though bolding and underlining of text may be done by "overstriking", that is, printing 2 or additional impressions within the same character position. Impact printers varieties embody, typewriter-derived printers, teletypewriter-derived printers, daisy print wheel printers, matrix printers and line printers. matrix printers stay in common use in businesses wherever multi-part forms ar written, like hire car services. an summary of impact printing[4] contains a close description of the many of the technologies used.
Pen-based plotters were associate degree alternate printing technology once common in engineering and subject companies. Pen-based plotters deem contact with the paper (but not impact, per se) and special purpose pens that ar automatically run over the paper to form text and pictures.
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