发明授权
- 专利标题: Carrier for electrophotography, two-component type developer, and image forming method
- 专利标题(中): 电子照相用载体,双组分型显影剂和成像方法
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申请号: US943698申请日: 1997-10-03
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公开(公告)号: US5885742A公开(公告)日: 1999-03-23
- 发明人: Kenji Okado , Toshiyuki Ugai , Ryoichi Fujita , Tsuyoshi Takiguchi
- 申请人: Kenji Okado , Toshiyuki Ugai , Ryoichi Fujita , Tsuyoshi Takiguchi
- 申请人地址: JPX Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX5-258491 19931015; JPX5-280642 19931015; JPX5-280643 19931015; JPX6-052582 19940228
- 主分类号: G03G9/113
- IPC分类号: G03G9/113
摘要:
A carrier for electrophotography has carrier particles. Each carrier particle has a carrier core and a silicone resin coat layer that covers the carrier core. The carrier particle has silicon atoms and carrier atoms on its surface in the ratio that satisfies the condition of Si/C=0.1 to 2.0 as the number of atoms present on the carrier particle surface as measured by X-ray photoelectron spectroscopy, and from 0.1% by number to 5% by number of metal atoms are present on the carrier particle surface. Additionally, there is a two-component developer for developing electrostatic images which consists of a toner and the carrier. An image forming method in which the two-component developer having the toner and the carrier is transported to a developing zone which is defined by a latent image carried on a latent image bearing member to develop the latent image. A voltage is applied to the developer to direct the toner from the latent image bearing member to a member carrying the developer. A second voltage directs the toner from the developer toward the latent image and a third voltage developer the latent image using the toner of the two-component developer.
公开/授权文献
- USD342046S Handlebar 公开/授权日:1993-12-07