发明名称 |
DEVELOPING DEVICE, PROCESS UNIT AND IMAGE FORMING APPARATUS |
摘要 |
Provided is a developing device for developing an electrostatic latent image on an image carrier, the developing device comprising: a housing having an opening; a developing sleeve facing the image carrier through the opening; a magnet roller encased in the developing sleeve and having magnetic poles including (i) a first magnetic pole having a strongest magnetic force of all the magnetic poles and (ii) a second magnetic pole having a magnetic force equal to or larger than a predetermined value and being different from the first magnetic pole; and a positioning member operable to allow the magnet roller to rotate together with the developing sleeve when the magnet roller is in a first rotational position where the first or the second magnetic pole faces an edge of the opening located downstream in a transfer direction of a two-component developer, and to inhibit the rotation of the magnet roller when the magnet roller is in a second rotational position where the first magnetic pole is closest to the image carrier.
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申请公布号 |
US2011150538(A1) |
申请公布日期 |
2011.06.23 |
申请号 |
US20100967408 |
申请日期 |
2010.12.14 |
申请人 |
KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. |
发明人 |
SAKURAI HIDETO |
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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