Thermomagnetic recording apparatus
AssigneeHitachi, Ltd.
InventorsKazuyoshi Tokunaga, Masayasu Anzai, Nobuyoshi Hoshi, Kiyohiko Tanno
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Abstract
A thermomagnetic recording apparatus, for example, facsimile receiver wherein the surface of a magnetic drum which is uniformly coated with a magnetic material is uniformly magnetized, the magnetized surface is locally heated to a temperature of at least a Curie point in accordance with facsimile signals by means of a thermal recording head, to reduce the coercise force and to invert the polarity of the magnetization, thereby forming a magnetic latent image, and the magnetic latent image is developed with magnetic toner.
Claims8
In a thermomagnetic recording apparatus having a magnetic recording medium which is uniformly coated with a magnetic material, magnetizing means to magnetize the magnetic material, a thermal recording head which is placed in adjacency to the magnetic recording medium, means to subject the magnetic recording medium to development so as to obtain a developed image, means to transfer the developed image from the recording medium onto a transfer medium, means to fix the transferred image onto the transfer medium, and means to sweep away developer powder remaining on the recording medium after the development as well as the transfer;
- a thermomagnetic recording facsimile receiver characterized in that said thermal recording head comprises a large number of heating recording elements which are arrayed over substantially a full width of a recording region of said magnetic material, and that selected ones of said heating recording elements are energized to generate heat, whereby picture element areas of said magnetic material opposing to the selected elements can be heated near to a Curie point of said magnetic material.
Dependencies are inferred from the claim text.