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US 5,848,327 AGranted
Coating compositions for development electrodes and methods thereof
AssigneeXerox Corporation
InventorsSantokh S. Badesha, George J. Heeks, Arnold W. Henry, Paul C. Julien, David J. Gervasi, George J. Bingham
Life of this patent
Estimating the term…
Abstract
An apparatus and process for reducing accumulation of toner from the surface of an electrode member in a development unit of an electrostatographic printing apparatus by providing a composition coating including a polymer, lubricant and inorganic material, on at least a portion of the electrode member.
Claims18
An apparatus for developing a latent image recorded on a surface, comprising:
- wire supports;
- a donor member spaced from the surface and being adapted to transport toner to a region opposed from the surface;
- an electrode member positioned in the space between the surface and the donor member, the electrode member being closely spaced from the donor member and being electrically biased to detach toner from the donor member thereby enabling the formation of a toner cloud in the space between the electrode member and the surface with detached toner from the toner cloud developing the latent image, wherein opposed end regions of the electrode member are attached to said wire supports adapted to support the opposed end regions of said electrode member;
- and
- a coating composition on at least a portion of nonattached regions of said electrode member, wherein said coating composition comprises a polymer, a lubricant and an inorganic material.
2 more elements
An electrophotographic process comprising:
- a) forming an electrostatic latent image on a charge-retentive surface;
- b) applying toner in the form of a toner cloud to said latent image to form a developed image on said charge retentive surface, wherein said toner is applied using a development apparatus comprising wire supports;
- a donor member spaced from the surface and being adapted to transport toner to a region opposed from the surface;
- an electrode member positioned in the space between the surface and said donor member, said electrode member being closely spaced from said donor member and being electrically biased to detach toner from said donor member thereby enabling the formation of a toner cloud in the space between said electrode member and the surface with detached toner from the toner cloud developing the latent image, wherein opposed end regions of said electrode member are attached to said wire supports adapted to support the opposed end regions of said electrode member;
- and a low surface energy coating composition on at least a portion of nonattached regions of said electrode member, wherein said coating composition comprises a polymer, a lubricant and an inorganic material;
- c) transferring the toner image from said charge-retentive surface to a substrate;
- and
- d) fixing said toner image to said substrate.
5 more elements
Dependencies are inferred from the claim text.