Recorders – Magnetographic
Patent
1976-10-28
1979-11-20
Lucas, Jay P.
Recorders
Magnetographic
118657, 346153, G03G 1900
Patent
active
041752651
ABSTRACT:
Apparatus for printing images on paper or other print medium by transferring toner on a magnetic tape onto the paper, using a voltage pulse applied between electrodes located respectively behind the tape and behind the paper. The electrode behind the tape is narrower than the tape, so that the opposite edge portions of the tape serve as insulators that prevent the formation of electric arcs between the electrodes. The voltage is applied in the form of a high voltage pulse on the order of 1500 volts lasting on the order of one millisecond, to transfer toner, and is followed by a sustained voltage on the order of 150 volts for preventing the toner particles from shifting position on the paper.
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patent: 4046074 (1977-09-01), Hochberg
Davis David L.
Nelson Alfred M.
AM International Inc.
Hulse Robert S.
Lucas Jay P.
Pyle Ray S.
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