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IONOGRAPHIC IMAGE FORMATION AND DEVELOPMENT ON AN INSULATING FILM

IP.com Disclosure Number: IPCOM000027331D
Original Publication Date: 1996-Apr-30
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 61K

Publishing Venue

Xerox Disclosure Journal

Abstract

Proposed is a system for forming and developing a toner image on a self supporting insulating film. The film may be transparent or opaque, but must be thin enough to permit charge deposition without blooming problems. The charges induced to the second surface of the insulating film must be applied as fast as those applied, in imagewise patterns, to the first side. Conversely, the latent image formed on the second side must be developed as fast as that on the first side. For ionography at 10 inch per second, 400 lines per inch, with 5 spots per aperture, each pixel must be written every 50 microseconds with a slit corotron. Alternatively, the charging process may be reduced to 1 inch per second, at 1 millisecond, with 3 spots per aperture.

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XEROX DISCLOSURE JOURNAL

IONOGRAPHIC IMAGE FORMATION AND DEVELOPMENT ON AN INSULATING FILM
Robert W. Gundlach
Abraham C herian

Proposed Classification US. C1.3551219
Int. C1. G03g 15/02

Proposed is a system for forming and developing a toner image on a self supporting insulating film. The film may be transparent or opaque, but must be thin enough to permit charge deposition without blooming problems. The charges induced to the second surface of the insulating film must be applied as fast as those applied, in imagewise patterns, to the first side. Conversely, the latent image formed on the second side must be developed as fast as that on the first side. For ionography at 10 inch per second, 400 lines per inch, with 5 spots per aperture, each pixel must be written every 50 microseconds with a slit corotron. Alternatively, the charging process may be reduced to 1 inch per second, at 1 millisecond, with 3 spots per aperture.

RELATED REFERENCES

US. Patent No. 2,885,556, issued to R. W. Gundlach, on May 5,1959 discloses a device for simultaneously charging the opposite sides of a plate comprised of a self-supporting photoconductive insulating layer overlying a substrate.

US. Patent No. 2,965,481, issued to R. W. Gundlach, on December 20, 1960 discloses a device for simultaneously charging the opposite sides of a plate comprising a self-supporting film of a photoconductive insulating material.

XEROX DISCLOSURE JOURNAL - Vol. 21, No. 2 March/April 1996 149

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