Recorders – Printing – dotting – or punching marker – Ink transfer support or moving means
Patent
1985-01-25
1986-12-02
Goldberg, E. A.
Recorders
Printing, dotting, or punching marker
Ink transfer support or moving means
346159, 346 11, 358300, G01D 900, G01D 1506, G01D 1514, H04N 123
Patent
active
046268766
ABSTRACT:
A solid state corona discharger in corona chargers which charge and discharge photosensitive members in electrophotographic copying machines, ozone generators and the like. The solid state corona discharger has paired strip-shape ac electrodes which are arranged side by side nearly in parallel and spaced away from each other not to initiate discharge, a dielectric member layer which covers at least one side of the external surfaces enveloping both electrodes, and a thin dc-applied electrode which is in contact with one side of external surface of said dielectric layer and makes up a closed circuit loop of capacitances together with said ac electrodes (not connected in terms of direct current), as well as characterized by producing corona discharge between said ac electrodes and a dc-applied electrode with an ac power supply applied across said ac electrodes. In using the solid state corona discharger according to said configuration as a charger for a thin substance to be charged, the substance is charged by placing a dc-applied electrode opposite to the surface of the substance; connecting a dc power source between the dc-applied electrode and the surface to be charged; and generating a dc electric field between the solid state corona discharger and said surface to be charged; as well as by initiating corona discharge between an ac electrode and a dc-applied electrode.
REFERENCES:
patent: 2297200 (1942-09-01), Buschbeck et al.
patent: 2648804 (1953-08-01), Steigerwalt et al.
patent: 3551197 (1970-12-01), Lindquist
patent: 3721871 (1973-03-01), Heron
patent: 4419713 (1983-12-01), Levinson
Ikeda Itsuo
Miyagawa Seiichi
Suzuki Shigeru
Goldberg E. A.
Peco Linda M.
Ricoh & Company, Ltd.
Shoup Guy W.
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