发明名称 |
Developing device and image forming apparatus with a toner separation member that uses a bias voltage to pull away toner in a developer |
摘要 |
Provided are a developing device and an image forming apparatus which employ a hybrid development method, have a toner-collecting developer supporting member and keep toner collecting ability stable for a long period of time to form high-quality images without development hysteresis (ghost) over a long period of time. A toner separation member abutting the toner-collecting developer supporting member through a toner-collecting developer layer is provided, and the toner separation member is applied with a bias voltage to form an electric field in such a direction as to pull toner away from the toner-collecting developer supporting member to prevent the toner from accumulating on the surface of the toner-collecting developer supporting member. |
申请公布号 |
US8126378(B2) |
申请公布日期 |
2012.02.28 |
申请号 |
US20090387580 |
申请日期 |
2009.05.05 |
申请人 |
UETAKE SHIGEO;NATSUHARA TOSHIYA;HIRAYAMA JUNYA;MAEYAMA TAKESHI;WATANABE MAKIKO;KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. |
发明人 |
UETAKE SHIGEO;NATSUHARA TOSHIYA;HIRAYAMA JUNYA;MAEYAMA TAKESHI;WATANABE MAKIKO |
分类号 |
G03G15/09 |
主分类号 |
G03G15/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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