Transfer of magnetic toner particles with a directed magnetic field
magnetic toner images are transferred from a latent magnetic image on a magnetic recording surface to hard copy medium, which may be paper, by (1) disposing the hard copy medium in contact with a toner image; and (2) applying a transfer magnetic field in the region of contact. The transfer magnetic field is directed tangential to the recording surface and has a gradient directed from the recording surface to the copy medium. The intensity of the magnetic transfer field may be greater or less than the intensity which is necessary to erase the latent magnetic image in the magnetic recording surface.
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Description
Patent History
Patent number: T969009
Type: Grant
Filed: Apr 18, 1977
Date of Patent: Apr 4, 1978
Assignee: General Electric Company (New York, NY)
Inventors: Joseph A. Lahut (Scotia, NY), Raymond E. Skoda (Scotia, NY)
Application Number: 5/788,292
Type: Grant
Filed: Apr 18, 1977
Date of Patent: Apr 4, 1978
Assignee: General Electric Company (New York, NY)
Inventors: Joseph A. Lahut (Scotia, NY), Raymond E. Skoda (Scotia, NY)
Application Number: 5/788,292
Classifications
Current U.S. Class:
346/741;
118/644
International Classification: G03G 1900;
International Classification: G03G 1900;