Magnetic inking apparatus for pulsed electrical printing

Details Magnetic inking apparatus for pulsed electrical printing Magnetic inking apparatus for pulsed electrical printing

1976-07-30

1978-07-18

Lucas, Jay P.

Recorders

Electric recording

Electrochemical

118658, 346 741, G03G 1516

Patent

active

041019091

ABSTRACT:
A non-impact printer having a moving support for supplying particles of magnetic ink. The ink particles are deposited upon the support and subjected to a magnetic field to produce a bead of the particles that rotates as the support moves toward a print position. A number of the particles detach from the bead and remain on the support as mutually spaced aggregates of irregular height. An electrical field of short duration, established in the print position between the particles and a shaped print electrode, charges the particles and attracts them to an intervening recipient sheet.

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
patent: 3937181 (1976-02-01), Handa
patent: 3967892 (1976-07-01), Whited
patent: 4022157 (1977-05-01), Rasekhi

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