Dot matrix printer capable of varying character size

Details Dot matrix printer capable of varying character size Dot matrix printer capable of varying character size

1985-08-20

1987-06-02

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

400120, 400303, 400322, B41J 312

Patent

active

046698973

ABSTRACT:
A dot matrix printer comprises a head comprising a plurality of printing elements, a motor for moving the head, an oscillation source for supplying pulses for driving the motor, and varying means for varying the spacing between dots printed by the head at an integer ratio corresponding to the driving pulses put out from the oscillation source.

REFERENCES:
patent: 4024447 (1977-05-01), Epstein
patent: 4024941 (1977-05-01), Sekikawa et al.
patent: 4030587 (1977-06-01), Walker
patent: 4113391 (1978-09-01), Minowa
patent: 4213714 (1980-07-01), Jones et al.
patent: 4247214 (1981-01-01), Swan
patent: 4278359 (1981-07-01), Weikel

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