Rotary electrical printer and method automatic blackness control

Details Rotary electrical printer and method automatic blackness control Rotary electrical printer and method automatic blackness control

1978-03-22

1979-12-04

Lucas, Jay P.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346163, G01D 1508, G03G 2100

Patent

active

041774728

ABSTRACT:
The printer records images in the form of dots on electrical discharge-sensitive paper. A plurality of styli are mounted on a rotor. The paper is fed continuously through a curved guide in a direction perpendicular to the plane of rotation of the rotor. This divisional patent is directed to the provision of an automatic blackness control circuit for varying the stylus voltage directly with the rotor speed so that the blackness and readability of the images remains relatively stable despite wide variations in operating speed.

REFERENCES:
patent: 3105426 (1963-10-01), Bickmore
patent: 3484791 (1969-12-01), Saeger
patent: 3500433 (1970-03-01), Wasilewski
patent: 3686676 (1972-08-01), Howell
patent: 3686678 (1972-08-01), Robbins
patent: 3823262 (1974-07-01), Adams et al.

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