Printer having variable character density

Details Printer having variable character density Printer having variable character density

1977-11-01

1980-07-22

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

400306, 400322, B41J 312, B41J 1932

Patent

active

042137144

ABSTRACT:
An improved matrix printer is described employing a high order, single track incremental position encoder to provide a plurality of electrical reference signals representative of predetermined print positions along a platen and for locating matrix columns at the predetermined print positions. An electronic circuit is provided for varying the predetermined print positions at which the matrix columns can be located.

REFERENCES:
patent: 3858703 (1975-01-01), Duley
patent: 3905463 (1975-09-01), Boyce et al.
patent: 3950685 (1976-04-01), Kramer
patent: 3970183 (1976-07-01), Robinson et al.
patent: 4034842 (1977-07-01), Giacone
patent: 4050563 (1977-09-01), Menhennett

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