Photocopying – Contact printing – Light boxes
Patent
1994-01-11
1995-10-03
Brase, Sandra L.
Photocopying
Contact printing
Light boxes
355221, 355225, G03G 2100
Patent
active
054556600
ABSTRACT:
A corona generating assembly for charging a photoconductive surface includes a corona generator connected to a relatively large first voltage source to produce ions directed to the photoconductive surface. A conductive screen member or scorotron grid is operatively connected to a second voltage source to control the flow of ions generated from said corona generator to and through said conductive screen. The conductive screen and corona generator are arranged such that the conductive screen is between the corona generator and the photoconductive surface to be charged. A switching arrangement is provided for operatively connecting the conductive screen member with a third voltage source when the first and second voltage sources are removed from the corona generator and conductive screen. Through this arrangement an electrical potential is impressed on the conductive screen member to create a positive electrical field which inhibits effluent outgassing to the photoconductive surface, thus preventing the development of a significant copy quality defect.
REFERENCES:
patent: 4320956 (1982-03-01), Nishikawa et al.
patent: 4386837 (1983-06-01), Ando
patent: 4574326 (1986-03-01), Myochin et al.
patent: 4603964 (1986-08-01), Swistak
patent: 4618249 (1986-10-01), Minor
patent: 4672505 (1987-06-01), Tsuchiya et al.
patent: 4695723 (1987-09-01), Minor
patent: 4725731 (1988-02-01), Lang
patent: 4841146 (1989-06-01), Gundlach et al.
patent: 4920266 (1990-04-01), Reale
patent: 4996425 (1991-02-01), Hauser et al.
patent: 5003350 (1991-03-01), Yui et al.
patent: 5008707 (1991-04-01), Ewing et al.
patent: 5025155 (1991-06-01), Hattori
patent: 5043579 (1991-08-01), Gundlach et al.
patent: 5087944 (1992-02-01), Yamauchi
patent: 5181072 (1993-01-01), Furuya et al.
patent: 5272507 (1993-12-01), Yoshida et al.
Bermudes Robert W.
Kunzmann Brendan W.
Reale Louis
Brase Sandra L.
Xerox Corporation
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