Device for driving dot printing bars in a dot printer

Details Device for driving dot printing bars in a dot printer Device for driving dot printing bars in a dot printer

1979-05-24

1981-04-07

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9304, 400124, B41J 312

Patent

active

042602688

ABSTRACT:
The device for driving dot printing bars in a dot printer comprises a recording paper holding and feeding platen, dot printing bars reciprocally movable between an inoperative position and an operative position, a common rotary friction roller normally held in a predetermined spaced relationship to the bars and adapted to be engaged by the bars when the bars effect dot printing, electromagnetic devices associated with the bars to cause the bars to strike against a recording paper to effect dot printing on the paper and a control circuit operating the electromagnetic devices.

REFERENCES:
patent: 2897752 (1959-08-01), Malmros et al.
patent: 3302557 (1967-02-01), Simpson
patent: 3795187 (1974-03-01), Babler
patent: 3929067 (1975-12-01), Nishikawa et al.
patent: 4174182 (1979-11-01), Lendl

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