29 March 1996 Impact of photoreceptor design on digital electrophotography
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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.
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Sam Maitra, P. Ramesh, S. Jeyadev, "Impact of photoreceptor design on digital electrophotography", Proc. SPIE 2658, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts, (29 March 1996); doi: 10.1117/12.236956; http://dx.doi.org/10.1117/12.236956
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Solids

Electrophotography

Receivers

Algorithm development

Digital photography

Chemical elements

Image resolution

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