发明名称 |
Developing unit and image forming apparatus |
摘要 |
A developing unit includes a plurality of developing rolls over which a developer is conveyed and supplied onto an image carrier which is rotatably supported; and at least one pair of the developing rolls being adjacent to each other. In the pair of the developing rolls, one developing roll rotates in a direction opposite to a rotary direction of the image carrier, and the other developing roll rotates in the same direction of the rotary direction of the image carrier. A regulation member is interposed between the pair of the developing rolls. The regulation member regulates a conveyed amount of the developer. The regulation member is disposed to be opposed to a magnet which is provided within the two adjacent developing rolls. A polarity of the magnet in the pair of developing rolls opposed to each other is different from each other.
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申请公布号 |
US2006216069(A1) |
申请公布日期 |
2006.09.28 |
申请号 |
US20060348305 |
申请日期 |
2006.02.07 |
申请人 |
RICOH PRINTING SYSTEMS, LTD. |
发明人 |
TSUJITA AKIO;KATAOKA KAORU;KUBO TATSUYA |
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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