Coating apparatus – With means to apply electrical and/or radiant energy to work... – With electromagnetic and/or electrostatic removal of...
Patent
1987-08-28
1988-12-27
Beck, Shrive
Coating apparatus
With means to apply electrical and/or radiant energy to work...
With electromagnetic and/or electrostatic removal of...
118660, 118 62, 118 63, 118411, 355 10, G03G 1506
Patent
active
047932813
ABSTRACT:
A liquid toner applicator for elongated photoconductive film medium on which a latent electrostatic image has been formed includes an upper bearing surface for supporting moving film medium, which is spaced from a conductive block having an upper surface. The conductive block has slots cut into a toning region of its upper surface. During operation, pressurized toner wells through the slots into the region between the lower surface of the film and the upper surface of the block. The toner tones the latent image. The upwelling toner spills into fluid channels, which carry the toner which is not used to a catch basin. From the catch basin, a toner pump recirculates the toner. Downstream form the toning region, a further slot cut into the block communicates with a vacuum source to squeegee away excess toner which is not associated with the toned image. An air knife downstream from the vacuum squeegee includes a slot cut an an angle through the block and a pressurized air source therefor. The air knife directs an airstream in a retrograde direction relative to the motion of the film to keep excess toner in the vicinity of the vacuum squeegee, to enhance its effect. The block is maintained at a potential relative to the film.
REFERENCES:
patent: 3113884 (1963-12-01), Kohler
patent: 3196832 (1965-07-01), Zin
patent: 3407786 (1968-10-01), Beyer et al.
patent: 3461843 (1969-08-01), Noon
patent: 3664298 (1972-05-01), Giaimo, Jr.
patent: 3901188 (1975-08-01), Eberlein
patent: 3937177 (1976-02-01), Lloyd
patent: 4179210 (1979-12-01), Bestenreiner et al.
patent: 4198923 (1980-04-01), Blumenthal
patent: 4259006 (1981-03-01), Phillips et al.
patent: 4270485 (1981-06-01), Murasawa et al.
patent: 4270859 (1981-06-01), Galbraith et al.
patent: 4281620 (1981-08-01), McChesney et al.
patent: 4398818 (1983-08-01), Jeromin et al.
patent: 4527509 (1985-07-01), Richardson
patent: 4545326 (1985-10-01), Carl
patent: 4685638 (1987-08-01), Satoyoshi et al.
"Physics of Electrophotography", by Burland et al., published at pp. 46-53 of the magazine Physics Today, published in the May, 1986 edition by the American Institute of Physics.
"Duplication of Continuous Tone Images Using Electrophotographic Films", by Contois et al., presented at the SPIE conference on Airborne Reconnaissance VI, Aug. 24-26, 1982, San Diego, Calif. and for publication in SPIE Proceedings, vol. 354.
"A Demonstrator/Processor for Photoconductive Recording Film", by Laukaitis.
Dobbins Lawrence W.
Luk Siu K.
Bashore Alain
Beck Shrive
General Electric Company
Meise William H.
Smiley Raymond E.
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