发明名称 |
Apparatus for measuring concentration of liquid developer |
摘要 |
Apparatus for measuring concentration of liquid developer or the like includes a holding member formed with an opening in which the liquid to be measured is retained. The holding member is driven to pass through a measuring station in which a photoelectric detector is disposed. The detector determines the amount of light transmitted through the liquid retained in the opening, thus measuring the concentration of colored component in the liquid.
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申请公布号 |
US4943735(A) |
申请公布日期 |
1990.07.24 |
申请号 |
US19880204494 |
申请日期 |
1988.06.09 |
申请人 |
OLYMPUS OPTICAL CO., LTD. |
发明人 |
NISHIKAWA, MASAJI |
分类号 |
G01N21/03;G01N21/13;G01N21/59;G03G15/10;G03G15/11 |
主分类号 |
G01N21/03 |
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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