Serial printer with dot matrix type print head

Details Serial printer with dot matrix type print head Serial printer with dot matrix type print head

1983-02-03

1985-09-24

Sewell, Paul T.

Typewriting machines

Including interposed inking device for record-medium

Including mechanism for shifting ribbon laterally at...

4002161, 400224, 4002404, B41J 3304, B41J 3514

Patent

active

045430012

ABSTRACT:
A dot matrix type serial printer wherein a print medium is printed with indicia such as letters, characters, symbols, or the like by selectively driving a number of print elements while moving a print head having the print elements in a direction of a printing line. To enable the simultaneous printing of a number of print lines in different colors, an ink ribbon is provided having a plurality of tracks in the different colors. The print head includes groups of print elements which are arranged such that the respective groups face and are associated with the respective different tracks of the ink ribbon thereby enabling the simultaneous printing of a number of print lines in the different colors by moving the print head. The ink ribbon is adjustable from a first mode wherein the print elements simultaneously print lines of different colors, to a second mode wherein all of the print elements may be associated with a common track of the ink ribbon thereby enabling a simultaneous printing of print lines in a single color.

REFERENCES:
patent: 4378566 (1983-03-01), Tsukamura
patent: 4403874 (1983-09-01), Payne et al.
patent: 4407595 (1983-10-01), Gershnow
patent: 4425046 (1984-01-01), Van Horne et al.
IBM Tech. Disc. Bulletin, by E. T. Osborne, vol. 18, No. 5, Oct. 1975, p. 1313, 400-126.

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