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

1979-05-25

1981-04-28

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9304, 400124, B41J 310

Patent

active

042642191

ABSTRACT:
The device for driving dot printing bars in a dot printer comprises at least one dot printing bar movable between two positions, an electromagnetic device controlling the operation timing of the bar, a periodically reciprocal operation member operable when the electromagnetic device is made conductive and means operable to shift the dot printing position of the bar whereby the bar springs out to effect dot printing in response to the operation of the operation member when the electromagnetic device is energized to attract the operation member thereto.

REFERENCES:
patent: 3139820 (1964-07-01), Kittler
patent: 3302562 (1967-02-01), Nelson
patent: 3715020 (1973-02-01), Nordin
patent: 4077336 (1978-03-01), Talvard et al.
patent: 4077505 (1978-03-01), Giolitti et al.
IBM Tech. Disc. Bulletin, S. L. Applegate, vol. 21, No. 9, Feb. 1979, pp. 3964-3965.

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