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PHOTORECEPTOR AND BELT MODULE DESIGN FOR INTERNAL EXPOSURE READ PROCESS

IP.com Disclosure Number: IPCOM000027132D
Original Publication Date: 1995-Jun-30
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 71K

Publishing Venue

Xerox Disclosure Journal

Abstract

In an electrophotographic printing machine, typically the photoconductive surface is charged, exposed and developed with toner particles. In this process, the same surface is charged, exposed and developed. Alternatively, one surface of the photoconductive belt may be charged, the surface opposed thereto exposed. The original surface is then developed. Thus, the system would employ charging of a first surface, exposure of the second surface opposed to the first surface, and development of the first surface. In order to achieve such a system, the photoconductive belt must be substantially transparent. A system of this type is particularly useful in multicolor printing machines wherein multiple images are developed in superimposed registration with one another on the photoconductive belt and, subsequently, transferred to a copy sheet simultaneously. In a system of this type, the first surface of the photoconductive belt is charged, exposed and developed with toner particles of a first color. Thereafter, the first surface is recharged and the second surface re-exposed. This records the second latent image on the photoconductive belt which is subsequently developed on the first surface thereof. This process is repeated for the remaining colors. Typically the process would be used for cyan, magenta, yellow and black toner particles. The resulting composite multicolor image is then transferred to a copy sheet simultaneously. Thereafter, the multicolor image on the copy sheet is fused thereto forming a multicolor copy.

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XEROX DISCLOSURE JOURNAL

PHOTORECEPTOR AND BELT Proposed Classification MODULE DESIGN FOR INTERNAL
EXPOSURE READ PROCESS
Jeffrey J. Folkins
Cyril G. Edmunds

U.S. C1.3551228 Int. C1. G03G 15/04

In an electrophotographic printing machine, typically the photoconductive surface is charged, exposed and developed with toner particles. In this process, the same surface is charged, exposed and developed. Alternatively, one surface of the photoconductive belt may be charged, the surface opposed thereto exposed. The original surface is then developed. Thus, the system would employ charging of a first surface, exposure of the second surface opposed to the first surface, and development of the first surface. In order to achieve such a system, the photoconductive belt must be substantially transparent. A system of this type is particularly useful in multicolor printing machines wherein multiple images are developed in superimposed registration with one another on the photoconductive belt and, subsequently, transferred to a copy sheet simultaneously. In a system of this type, the first surface of the photoconductive belt is charged, exposed and developed with toner particles of a first color. Thereafter, the first surface is recharged and the second surface re-exposed. This records the second latent image on the photoconductive belt which is subsequently developed on the first surface thereof. This process is repeated for the remaining colors. Typically the process would be us...