Coating apparatus – With means to apply electrical and/or radiant energy to work... – Electrostatic and/or electromagnetic attraction or...
Patent
1990-07-25
1991-12-24
Fisher, Richard V.
Coating apparatus
With means to apply electrical and/or radiant energy to work...
Electrostatic and/or electromagnetic attraction or...
118648, 118651, 118653, 118679, 355262, G03G 1506
Patent
active
050742400
ABSTRACT:
A developer material coating apparatus for electrostatically coating developer material on a support member in a developer material coating region to form a developer sheet, comprising a counter electrode roller for feeding the support member through the developer material coating region while carrying the support member thereof, a carry roller for triboelectrically charging the developer material and electrostatically supplying the charged developer material to the support member disposed in the developer material coating region, at least one array of electrodes arranged along the inner surface of the counter electrode roller and a control unit for selectively supplying said electrodes with a voltage having an opposite polarity to that of the charged developer material to thereby coat the developer material on a desired portion of the support member.
REFERENCES:
patent: 2784694 (1957-03-01), Crumrine et al.
patent: 3672326 (1972-06-01), Schulze
patent: 4027607 (1977-06-01), Pan et al.
Brother Kogyo Kabushiki Kaisha
Fisher Richard V.
Friedman Charles K.
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