Linear actuator driven printer

Details Linear actuator driven printer Linear actuator driven printer

1979-02-28

1981-01-20

Coven, Edward M.

Typewriting machines

Including type-set-assemblage mounted on carrier and...

Including type-faces movable relative to type-face-carrier

400322, 4001443, 310 13, B41J 108

Patent

active

042459176

ABSTRACT:
A high-speed printer includes a standard printing element, such as a daisy wheel, a paper feed mechanism and a ribbon feed mechanism. All of these various devices are controlled by a single linear actuator which comprises an elongated cylindrical magnet, C-shaped in cross-section, through which a ferrous core axially extends. A plurality of separate armatures envelope the core in the air gap between the magnet and core and are adapted to move linearly upon application thereto of a control current. The armatures control, respectively, the movement of the carriage containing the printer element, the rotation of the printer element, the advancement of the paper feed mechanism and the incremental positioning in both directions of the ink ribbon.

REFERENCES:
patent: 2902136 (1959-09-01), Whippo
patent: 3509981 (1970-05-01), Hylan et al.
patent: 3596745 (1971-08-01), Waldenburger
patent: 3696204 (1972-10-01), Wallskog
patent: 3723780 (1973-03-01), Gillum
patent: 3995547 (1976-12-01), Shimodaira et al.
patent: 4059775 (1977-11-01), Warmka
patent: 4062436 (1977-12-01), Kondur et al.
patent: 4072101 (1978-02-01), Garcia et al.
patent: 4081723 (1978-03-01), Vetter et al.
patent: 4149808 (1979-04-01), Malthias et al.

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