AC scorotron

Details AC scorotron AC scorotron

1999-05-14

2000-08-01

Chen, Sophia S.

Electrophotography

Image formation

Charging

361230, 250324, G03G 1502

Patent

active

060979151

ABSTRACT:
In an electrostatographic imaging apparatus employing at least one charging device, scorotron which consists of one or more fine wires supported on insulated blocks spaced between the photoconductive surface and a conductive or insulative surface parallel to it. A screen or grid is interposed between the corona wires and the photoconductive surface and the grid is maintained at a potential roughly equal to the potential desired on the photoconductive surface. The scorotrons geometry, the individual wires are from 1/2 to 11/2 inches apart and are spaced from the grid by about 3/4 of an inch. Field enhancement electrode(s) are placed on the screen and are biased at the same potential as the screen. The field enhancement electrode(s) enhance electrical performance.

REFERENCES:
patent: 4285025 (1981-08-01), Nishikawa
patent: 5613172 (1997-03-01), Pietrowski et al.
patent: 5655186 (1997-08-01), Godlove et al.

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