发明名称 |
Liquid developer monitoring device, liquid developer controlling system, and image forming apparatus using same |
摘要 |
This invention relates to a liquid developer monitoring device comprising a first electrode which contacts with a liquid developer comprising a liquid medium and electrically charged toner particles dispersed therein, a second electrode being either a developing roller or a separate roller which provides a fresh surface and immerses said surface in the liquid developer, an electric power source which applies a bias voltage between said first and second electrodes so as to deposit the toner particles on the second electrode, and a sensor which measures magnitude of current flowing between said first and second electrodes during the deposition of the toner particles. A cleaning device removes the deposited toner on the second electrode. The sensor includes an electric coil, a magnet inserted in the coil and a Hall element.
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申请公布号 |
US5724629(A) |
申请公布日期 |
1998.03.03 |
申请号 |
US19960671880 |
申请日期 |
1996.06.28 |
申请人 |
MINOLTA CO., LTD. |
发明人 |
IINO, SHUJI;FUJIWARA, TOSHIMITSU;MIYAMOTO, HIDETOSHI;YAMADA, MASAMI |
分类号 |
G03G15/11;G03G15/10;(IPC1-7):G03G15/10 |
主分类号 |
G03G15/11 |
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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