发明申请
- 专利标题： Image forming apparatus and color image forming apparatus
- 专利标题（中）： 图像形成装置和彩色图像形成装置
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申请号： US11647246申请日： 2006-12-29
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公开(公告)号： US20070104517A1公开(公告)日： 2007-05-10
- 发明人: Shoko Shimmura , Takashi Hatakeyama , Toshihiro Kasai , Minoru Yoshida , Takeshi Watanabe , Masashi Takahashi
- 申请人： Shoko Shimmura , Takashi Hatakeyama , Toshihiro Kasai , Minoru Yoshida , Takeshi Watanabe , Masashi Takahashi
- 专利权人： KABUSHIKI KAISHA TOSHIBA,TOSHIBA TEC KABUSHIKI KAISHA
- 当前专利权人： KABUSHIKI KAISHA TOSHIBA,TOSHIBA TEC KABUSHIKI KAISHA
- 主分类号： G03G15/09
- IPC分类号： G03G15/09
摘要：
In a color image forming apparatus of the invention, a developing roller of a developing device includes a magnet roller that is configured such that a developer supply pole, a developer convey pole and a developer release pole are properly arranged and fixed. The developer roller also includes an outer cylindrical roller that is formed of an electrically conductive material such as aluminum. A surface of the cylindrical roller is processed to have irregularities. Using the developing roller, simultaneous development/cleaning is executed. Thus, 100% of toner contributes to image formation, and no waste toner is produced. Post-transfer residual toner on a photoconductor body is efficiently recovered to the developing roller, and occurrence of an image defect such as development memory can be prevented.
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