Matrix printer control system

Details Matrix printer control system Matrix printer control system

1978-01-16

1980-05-27

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, 400322, 400323, 400342, B41J 310

Patent

active

042047773

ABSTRACT:
A system of controlling the operation of a matrix printer wherein printing is performed in each direction of travel of a printing element carriage. A printer control large scale integrated device is combined with a programmable character memory device and associated circuits for responding to character code data and to the position of the printing carriage and the direction of travel thereof. Code data is input in character by character format and, by means of counters and latching devices, the pulses or signals are sent to the respective printing elements for actuation thereof for printing the dots of a matrix character.

REFERENCES:
patent: 3789272 (1974-01-01), Voll Hardt
patent: 3789969 (1974-02-01), Howard et al.
patent: 3833891 (1974-09-01), Howard et al.
patent: 3858703 (1975-01-01), Duley
patent: 3993181 (1976-11-01), Potma et al.
patent: 4024506 (1977-05-01), Spaargaren
patent: 4058195 (1977-11-01), Fravel et al.
patent: 4116567 (1978-09-01), San Pietro

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