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Proceedings Paper

Impact of photoreceptor design on digital electrophotography
Author(s): Sam Maitra; P. Ramesh; S. Jeyadev
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Paper Abstract

Electroreceptors are used in many practical applications as receivers for charge. In laser xerography, the receivers are photo-sensitive. They are precharged on the surface in the dark using corona or some other device, and then selectively exposed by a laser beam to discharge the surface charge. The resulting latent image on the surface of the receiver is developed with toner of the opposite polarity. During discharge, the charge spreads in transit through the receiver thickness due to mutual repulsion of like charges, and results in a wider line width than the optical beam width used in exposure. This effect leads to loss in resolution of the developed image. In this paper we describe a generalized numerical algorithm we have developed to treat interaction between the photoreceptor and incident light for 1D images. This allows us to lay down arbitrary space and time dependent exposure profile on the photoreceptor, and study its interaction with photoreceptor design parameters. In particular, the effects studied include line broadening and solid area structure.

Paper Details

Date Published: 29 March 1996
PDF: 11 pages
Proc. SPIE 2658, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts, (29 March 1996); doi: 10.1117/12.236956
Show Author Affiliations
Sam Maitra, Xerox Corp. (United States)
P. Ramesh, Xerox Corp. (United States)
S. Jeyadev, Xerox Corp. (United States)


Published in SPIE Proceedings Vol. 2658:
Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts
Jan Bares, Editor(s)

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