Dot printer

Details Dot printer Dot printer

1984-12-27

1987-02-17

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

400320, 400352, 400175, B41J 304, B41J 2528, B41J 1122

Patent

active

046435972

ABSTRACT:
A dot printer wherein a bearing member is movably attached to each of two shafts disposed in parallel with a platen, and a plurality of electromagnets are secured to the bearing members together with a head which houses therein a plurality of needles driven by the electromagnets. In this arrangement, the necessity of employing a carrier can be eliminated to simplify the structure as well as to reduce both the dimensions and the weight of the whole while ensuring a high-speed printing operation with another advantage of facilitating the assembling process.

REFERENCES:
patent: 3666071 (1972-05-01), Purr
patent: 4381896 (1983-05-01), Shiurila
patent: 4420269 (1983-12-01), Ackermann et al.

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