Print head

Details Print head Print head

1985-12-06

1987-03-03

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

046472363

ABSTRACT:
A dot matrix print head comprises a print wire unit in which a plurality of print wires are slidably mounted, an electromagnet unit having a plurality of electromagnets, and an armature unit secured to the electromagnet unit. The armature unit has a cover, a spring plate having a plurality of projections, and a plurality of armatures. Each armature has a projection which is engaged with a hole formed in a sub-yoke. The engagement of the projection is kept by the projection of the spring plate.

REFERENCES:
patent: 4197021 (1980-04-01), Gomi
patent: 4204778 (1980-05-01), Miyazawa
patent: 4244658 (1981-01-01), Mori
patent: 4252449 (1981-02-01), Miyazawa
patent: 4335969 (1982-06-01), Ott
patent: 4375338 (1983-03-01), Mitsuishi
patent: 4423969 (1984-01-01), Kobryn
patent: 4518269 (1985-05-01), Akazawa
patent: 4521122 (1985-06-01), Schafer

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