基本信息:
- 专利标题： A developing apparatus
- 专利标题（中）：开发设备
- 申请号：EP90303206.8 申请日：1990-03-27
- 公开(公告)号：EP0390472A3 公开(公告)日：1991-11-06
- 发明人： Watanabe, Akira, c/o Canon Kabushiki Kaisha , Itoh, Masahiro, c/o Canon Kabushiki Kaisha , Sakemi, Yuji, c/o Canon Kabushiki Kaisha , Satomura, Hiroshi, c/o Canon Kabushiki Kaisha
- 申请人： CANON KABUSHIKI KAISHA
- 申请人地址： 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo JP
- 专利权人： CANON KABUSHIKI KAISHA
- 当前专利权人： CANON KABUSHIKI KAISHA
- 当前专利权人地址： 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo JP
- 代理机构： Beresford, Keith Denis Lewis
- 优先权： JP82849/89 19890331; JP138953/89 19890531; JP149889/89 19890613; JP149891/89 19890613
- 主分类号： G03G15/09
- IPC分类号： G03G15/09
摘要：
A developing apparatus having a developing sleeve (10b) for carrying developer to a developing station. The developing sleeve (10b) contains therein a magnet (10a). A magnetic member (21) is disposed closely to the developing sleeve (10b), extending along a circumference of the sleeve (10b). The magnetic member (21) cooperates with said magnet (10a) to form a magnetic brush in a gap between the sleeve (10b) and the magnetic member (21) itself. The magnetic brush is effective to prevent possible leakage of the developer to the outside of a developer container (8) at longitudinal ends of the sleeve (10b).
公开/授权文献:
- EP0390472A2 A developing apparatus 公开/授权日：1990-10-03
IPC结构图谱:
| G | 物理 |
| --G03 | 摄影术；电影术；利用了光波以外其他波的类似技术；电记录术；全息摄影术 |
| ----G03G | 电记录术；电照相；磁记录 |
| ------G03G15/00 | 应用电荷图形的电记录工艺的设备 |
| --------G03G15/06 | .显影用的 |
| ----------G03G15/08 | ..应用固体显影剂，例如，粉末显影剂 |
| ------------G03G15/09 | ...应用磁刷 |