Wire dot print head

Details Wire dot print head Wire dot print head

1983-11-09

1986-02-25

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

045726817

ABSTRACT:
The printing head for a wire-type dot printer includes a plurality of electromagnetic coils, a wire, a permanent magnet, and a leaf spring. The arrangement of the wire and the leaf spring allows the print head to operate stably during high-speed operation. The wire dot print head has a head body in which the wire drive units are assembled so there is no problem with magnetic interference between the electromagnets. In addition, the wire dot print head may be comprised of a multiplicity of wires, and may be of a double-deck construction type which renders the unit more compact. This arrangement allows the construction of a multiwire high speed print head which can be easily assembled from simple parts.

REFERENCES:
patent: 3904011 (1975-09-01), Matschke et al.
patent: 3991869 (1976-11-01), Berrey
patent: 4185929 (1980-01-01), Hebert
patent: 4248540 (1981-02-01), Bellinger
patent: 4368353 (1983-01-01), Ando et al.
patent: 4389127 (1983-06-01), Bellinger
patent: 4394093 (1983-07-01), Asano et al.
patent: 4407591 (1983-10-01), Adamoli et al.
patent: 4447166 (1984-05-01), Ochiai et al.

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