Printing head for a wire-type dot printer

Details Printing head for a wire-type dot printer Printing head for a wire-type dot printer

1978-05-11

1980-04-08

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

041970217

ABSTRACT:
The printing head for a wire-type dot printer includes a plurality of electromagnet coils, each on a coil core including a central post, said coil core and central post being of a magnetic material. Each of the coil cores is mounted on a frame having a cap for holding an operating plate which rotates around a fulcrum proximate the periphery of the printing head. The printing head is of reduced size and weight and is low in cost to manufacture.

REFERENCES:
patent: 3770092 (1973-11-01), Grim
patent: 3828908 (1974-08-01), Schneider
patent: 3842955 (1974-10-01), Iwasaki
patent: 3889793 (1975-06-01), Cattaneo
patent: 4049107 (1977-09-01), Murat
patent: 4051941 (1977-10-01), Hebert

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