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These printers are typically loud, but remain in use today because of their unique ability to function with multipart forms. Common examples of impact printers are dot matrix, daisy-wheel printers, and ball printers.
For example, dot matrix impact printers are still used at bank tellers and auto repair shops, and other applications where use of tractor feed paper is desirable such as data logging and aviation. Most of these printers now come with USB interfaces as a standard feature to facilitate connections to modern computers without legacy ports.
Daisy wheel printing is an impact printing technology invented in 1970 by Andrew Gabor [1] at Diablo Data Systems.It uses interchangeable pre-formed type elements, each with typically 96 glyphs, to generate high-quality output comparable to premium typewriters such as the IBM Selectric, but two to three times faster.
As an impact printer, the term mainly refers to low-resolution impact printers, with a column of 8, 9 or 24 "pins" hitting an ink-impregnated fabric ribbon, like a typewriter ribbon, onto the paper. It was originally contrasted with both daisy wheel printers and line printers that used fixed-shape embossed metal or plastic stamps to mark paper ...
The IBM 4245 is a high-speed impact printer that uses an engraved band. IBM proposed it as a replacement for the 1403, 3203 and the 3211/3811. As an example the Montana Department of Administration bought three 4245s (a model 12 and two model 20s) in October 1985 to replace two IBM 1403s and a 3211/3811. [21] [22] There are four consumable items:
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Many impact printers, such as the daisywheel printer and dot matrix printer, used a print head that printed a character then moved on until an entire line was printed. Line printers were much faster, [4] as each impact printed an entire line. There have been five principal designs: Drum printers; Chain (train) printers; Bar printers; Comb printers
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