发明公开
- 专利标题: Dry toner and method of preparing same
- 专利标题(中): Trockentoner und Herstellungsverfahren
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申请号: EP02014739.3申请日: 2002-07-03
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公开(公告)号: EP1273977A1公开(公告)日: 2003-01-08
- 发明人: Yamasita, Hiroshi , Sugiyama, Tsunemi , Emoto, Shigeru , Tomita, Masami
- 申请人: Ricoh Company, Ltd.
- 申请人地址: 3-6, Nakamagome 1-chome, Ohta-ku Tokyo 143-8555 JP
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: 3-6, Nakamagome 1-chome, Ohta-ku Tokyo 143-8555 JP
- 代理机构: Barz, Peter, Dr.
- 优先权: JP2001202093 20010703
- 主分类号: G03G9/087
- IPC分类号: G03G9/087 ; G03G9/08
摘要:
A dry toner for developing an electrostatic image, including a toner binder containing a urea-modified polyester. The toner has an average sphericity of 0.96 or more and contains no more than 30 % by weight of particles having a sphericity of less than 0.95.
公开/授权文献
- EP1273977B1 Dry toner and method of preparing same 公开/授权日:2008-03-26
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