发明授权
- 专利标题: Toner, developer and image forming method
- 专利标题(中): 调色剂,显影剂和成像方法
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申请号: US272507申请日: 1994-07-07
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公开(公告)号: US5620824A公开(公告)日: 1997-04-15
- 发明人: Kenji Okado , Akihiko Nakazawa , Ryoichi Fujita , Makoto Kanbayashi
- 申请人: Kenji Okado , Akihiko Nakazawa , Ryoichi Fujita , Makoto Kanbayashi
- 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: JPX2-182670 19900712; JPX2-194978 19900725; JPX2-199253 19900730; JPX2-199254 19900730; JPX2-202449 19900801; JPX2-208122 19900808; JPX2-222567 19900827; JPX2-226693 19900830; JPX3-145992 19910618
- 主分类号: G03G9/08
- IPC分类号: G03G9/08 ; G03G9/097
摘要:
A toner for developing an electrostatic image has colored resin particles-(A) containing a coloring agent or a magnetic powder, and a powdery additive. The powdery additive has organic resin particles-(B) having peaks respectively in a region of particles diameters of 20 m.mu. to 200 m.mu. and a region of particle diameters of 300 m.mu. to 800 m.mu. in their particle size distribution, and the larger-diameters particles included in the region of particle diameters of 300 m.mu. to 800 m.mu. being contained in an amount of from 2% by weight to 20% by weight.