Corona generating device

Details Corona generating device Corona generating device

1984-12-12

1986-04-29

Grimley, Arthur T.

Photocopying

Including fiber optics

250325, 250326, 430902, 361212, G03G 1500

Patent

active

045853231

ABSTRACT:
A corona generating device for depositing negative charge on an imaging surface carried on conductive substrate comprises at least one elongated conductive corona discharge electrode, means to connect the electrode to a corona generating potential source, at least one element adjacent the corona discharge electrode capable of adsorbing nitrogen oxide species generated once the corona generating electrode is energized and capable of desorbing nitrogen oxide species once that electrode is not energized, the element being coated with a substantially continuous thin layer of a paint containing reactive metal particles which will combine with the nitrogen oxide species, the reactive metal being present in the paint in an amount sufficient to neutralize the nitrogen oxide species when generated. In a preferred embodiment the corona discharge electrode comprises a thin wire coated at least in a discharge area with a dielectric material and the at least one element comprises a conductive shield and an insulating housing having two sides adjacent the shield to define the longitudinal opening to permit ions emitted from the electrode to be directed toward a surface to be charged. Both the shield and the two sides of the housing being coated with a substantially continuous thin layer of paint containing reactive metal particles. Preferably the reactive metal particles comprises lead, copper, nickel, gold, silver or zinc or mixtures thereof.

REFERENCES:
patent: 2574225 (1951-11-01), Ringk et al.
patent: 2813804 (1957-11-01), Kendall et al.
patent: 2836725 (1958-05-01), Vyverberg
patent: 3862420 (1975-01-01), Banks et al.
patent: 4086650 (1978-04-01), Davis et al.
patent: 4265990 (1981-05-01), Stolka et al.
patent: 4318610 (1982-03-01), Grace
patent: 4379129 (1983-04-01), Abe
"Electroless Plating Today", Metal Finishing, pp. 45-49 and 52, Author-Edward B. Saubestre, Aug. 1962.
Research Disclosure-Nov. 1980, p. 508, Item 19957, "Corona Discharge Unit".
Defensive Publication T940022-Pressurized & Filtered Xerographic System-Rodda.-Pub. Nov. 4, 1975.

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