发明名称 |
Developing apparatus employing permeability sensor to detect polymer toner density |
摘要 |
A developing apparatus includes a developer container for containing a developer comprising magnetic carrier and non-magnetic toner produced through polymerization method; a developer carrying member, provided in an opening of the developer container, for carrying the developer; detecting means for detecting a toner content in the developer, the detecting means including a coil sensor and detecting the toner content using magnetic permeability of the developer.
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申请公布号 |
US6449442(B1) |
申请公布日期 |
2002.09.10 |
申请号 |
US19980098328 |
申请日期 |
1998.06.17 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
SHIDA MASANORI;KOBAYASHI YOSHIAKI;HIBINO MASARU;OZAWA ICHIRO |
分类号 |
G03G9/08;G03G9/087;G03G9/107;G03G15/08;G03G15/09;(IPC1-7):G03G15/10 |
主分类号 |
G03G9/08 |
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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