发明授权
- 专利标题： Magnetic particles for charging means, and electrophotographic apparatus, process cartridge and image forming method including same
- 专利标题（中）： 用于充电装置的磁性颗粒和电子照相设备，处理盒和包括其的成像方法
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申请号： US08492445申请日： 1995-06-19
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公开(公告)号： US06548218B1公开(公告)日： 2003-04-15
- 发明人: Tsutomu Kukimoto , Kenji Okado , Shuichi Aita , Tsuyoshi Takiguchi
- 申请人： Tsutomu Kukimoto , Kenji Okado , Shuichi Aita , Tsuyoshi Takiguchi
- 优先权： JP6-140179 19940622
- 主分类号： G03G1302
- IPC分类号： G03G1302
摘要：
Magnetic particles for charging means disposed in contact with an electrophotographic photosensitive member for charging the electrophotographic photosensitive member based on a voltage applied thereto are provided as particles of a ferrite component represented by the following formula (1): (Fe2O3)X(A)Y(B)Z (1), wherein A denotes at least one metal oxide component selected from the group consisting of Li2O, MnO and MgO, B denotes at least one metal oxide component different from A; X, Y and Z denote numbers representing mol ratios and satisfying the following conditions: 0.2