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Developing apparatus

  • US 4,696,255 A
  • Filed: 08/01/1985
  • Issued: 09/29/1987
  • Est. Priority Date: 08/07/1984
  • Status: Expired due to Term
First Claim
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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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