Developing apparatus
First Claim
1. A developing apparatus for supplying a thin layer of a developer to a latent image carrying member of a copying machine to develop a latent image on said latent image carrying member, comprising a storage means for storing said developer, a developer supply member rotatably supported for supplying said developer to said latent image carrying member, said developer supply member having a surface portion composed of an electrically insulative layer having minute, electrically floating, conductive regions dispersed therein, a developer feeding member disposed rotatably between said storage means and said developer supply means and being in contact with said developer supply means for feeding said developer from said storage means to said developer supply means, and a layer thickness regulating member having a portion in pressure contact with said surface portion of said developer supply member for regulating the thickness of said thin layer of said developer on said developer supply member.
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Accused Products
Abstract
In a developing apparatus for a copying machine in which a latent image on a latent image carrying member is developed by supplying a thin layer of a developer to the latent image carrying member, an electrically insulating layer having a number of electrically conduction spots dispersed therein is provided on a developer carrier member for supplying a developer from a developer storage to a latent image carrying member.
40 Citations
16 Claims
- 1. A developing apparatus for supplying a thin layer of a developer to a latent image carrying member of a copying machine to develop a latent image on said latent image carrying member, comprising a storage means for storing said developer, a developer supply member rotatably supported for supplying said developer to said latent image carrying member, said developer supply member having a surface portion composed of an electrically insulative layer having minute, electrically floating, conductive regions dispersed therein, a developer feeding member disposed rotatably between said storage means and said developer supply means and being in contact with said developer supply means for feeding said developer from said storage means to said developer supply means, and a layer thickness regulating member having a portion in pressure contact with said surface portion of said developer supply member for regulating the thickness of said thin layer of said developer on said developer supply member.
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10. A developing apparatus for supplying developer to a latent image on a latent image carrier, comprising:
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a developer supply member comprising a layer of a first electrically insulating material having minute electrically conductive regions dispersed therein, said conductive regions being electrically floating; means for forming a film of developer on said layer, said film having a regulated thickness; and means for applying the film to said latent image to develop it. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification