Magnetic hysteresis driven recording element and method

Details Magnetic hysteresis driven recording element and method Magnetic hysteresis driven recording element and method

1978-09-01

1980-09-09

Coven, Edward M.

Printing

Selective or progressive

Bed and platen machines

101 9329, 101 9348, 335153, 335234, B41J 902

Patent

active

042211638

ABSTRACT:
A magnetic field is applied to a recording element by energization of an electromagnet or by a permanent magnet to a saturation point of the element material to cause the recording element to move in relation to the electromagnet or to the permanent magnet when the magnetic field is reversed. The polarity opposes or reverses the field to enable a controlled repulsion force and causes the recording element to move in an opposite direction. Magnetic hysteresis is thus utilized in the repulsion and attraction of such an element in both directions of movement.

REFERENCES:
patent: 3449639 (1969-06-01), Brown et al.
patent: 3711804 (1973-01-01), Kroft et al.
patent: 3730317 (1973-05-01), Jaeschke
patent: 3741113 (1973-06-01), Mako et al.
patent: 3805378 (1974-04-01), Archer et al.
patent: 3878778 (1975-04-01), Gomi
patent: 3924528 (1975-12-01), Ludin
patent: 3949334 (1976-04-01), Launt
Sakmann, IBM Tech. Discl. Bulletin, vol. 13, No. 8, Jan. 1971, pp. 2130-2131.

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