发明名称 |
Toner concentration detector for a two-component developer |
摘要 |
A toner concentration detecting device for detecting a toner concentration of a two component developer including a differential transformer which is connected with a phase detecting circuit. A variable capacitance diode is connected between the primary coil and the secondary coil and a variable resistor is provided to supply the variable capacitance diode with a DC voltage to vary the capacitance of the diode. The variable resistor and DC voltage are located at a remote location from the transformer.
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申请公布号 |
US5310425(A) |
申请公布日期 |
1994.05.10 |
申请号 |
US19930015165 |
申请日期 |
1993.02.09 |
申请人 |
TDK CORPORATION |
发明人 |
NAKAGAWA, SHIRO;DOMON, TAISUKE;IMAI, TAKEHIRO;TAKAHISHI, EIJI |
分类号 |
G03G15/08;(IPC1-7):B05C11/00;G03G21/00 |
主分类号 |
G03G15/08 |
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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