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PHOTORECEPTOR UTILIZING INJECTINC CONTACT FOR DIPOLE DEVELOPMENT

IP.com Disclosure Number: IPCOM000024479D
Original Publication Date: 1980-Oct-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 50K

Publishing Venue

Xerox Disclosure Journal

Abstract

Dipole xerography utilizes inductive development arising from fringe fields on the surface of the photoreceptor. This requires a high-frequency, spatially-modulated surface charge. A conventional way of achieving this is to uniformly corona charge a photoreceptor, then flood exposure through an optical screen followed by imagewise exposure without an optical screen.

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XEROX DISCLOSURE JOURNAL

PHOTORECEPTOR UTILIZING IN JECTINC CONTACT FOR DIPOLE DEVELOPMENT Joseph Mort

Proposed Classification
U.S. c1. 355/3

Int. C1. G03g 15/00

Dipole xerography utilizes inductive development arising from fringe fields on the surface of the photoreceptor. This requires a high-frequency, spatially-modulated surface charge. A conventional way of achieving this is to uniformly corona charge a photoreceptor, then flood exposure through an optical screen followed by imagewise exposure without an optical screen.

The production of the required spatial modulation of surface charge can be accomplished in one step without the need for a flood exposure or optical screen by a layered structure comprising a non-injecting, conducting layer having thereon a predetermined pattern of an injecting material, this being overcoated with a suitable photoreceptor. With such an embodiment, corona charging with the appropriate sign would result in a patterned surface charge developed in times much less than typical process speeds which would then be imagewise exposed in a conventional manner.

Volume 5 Number 5 September/October 1980 519

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    XEROX DISCLOSURE JOURNAL Volume 5 Number 5 September/October 1980

520

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