Thermomagnetic printer

Details Thermomagnetic printer Thermomagnetic printer

1985-04-22

1985-11-19

Weldon, Ulysses

Recorders

Magnetographic

Radiation sensitive

346 745, G01D 1506

Patent

active

045545570

ABSTRACT:
A thermomagnetic printer includes a recording unit for storing a latent image in which there are provided a magnetic recording layer providing thermomagnetic effect when placed in magnetic field with temperature graduation on one side of a photoconductive layer and a transparent electrically conductive layer on the other side.
When storing a latent image in the magnetic recording layer, light which emits corresponding to the image to be reproduced on a paper is irradiated onto the photoconductive layer through the transparent electrically conductive layer while applying magnetic field to the magnetic recording layer and supplying electricity between the magnetic recording layer and the electrically conductive layer, whereby irradiated part of the photoconductive layer and the corresponding part of the magnetic recording layer are heated by Joule heat effect and the latter is magnetized by the thermomagnetic effect. By repeating the above operation in accordance with the image information, the latent image is formed in the magnetic recording layer.

REFERENCES:
patent: 3521294 (1970-07-01), Treves
patent: 3693183 (1972-09-01), Lemke
patent: 3778145 (1973-12-01), McClure
patent: 3935578 (1976-01-01), Condon et al.
patent: 3995278 (1976-11-01), Young
patent: 4138685 (1979-02-01), Kellerman
patent: 4314257 (1982-02-01), Tokunaga et al.
patent: 4427987 (1984-01-01), Kikuchi

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