Non-impact printer with magnetic ink reorientation

Details Non-impact printer with magnetic ink reorientation Non-impact printer with magnetic ink reorientation

1976-07-30

1978-07-25

Lucas, Jay P.

Recorders

Electric recording

Electrochemical

346150, G03G 1900, G03G 1506

Patent

active

041033060

ABSTRACT:
A non-impact printer having a support for magnetic ink particles loosely distributed on its surface in mutually spaced aggregates of irregular height. An electrical field of short duration, established in a print position between the particles and a shaped print electrode, charges the particles and attracts them to an intervening recipient sheet. The printed image is rendered more uniform by magnetic reorientation of the aggregates of greater height before printing, in a field having components normal to the electrical field in the region of the print position.

REFERENCES:
patent: 3257222 (1966-06-01), Carlson
patent: 3419884 (1968-12-01), Betts
patent: 3530794 (1970-09-01), Ritzerfield
patent: 3816840 (1974-06-01), Kotz
patent: 3879737 (1975-04-01), Lunde
patent: 3929098 (1975-12-01), Liebman

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