| 发明名称 |
Media discriminating and media presence sensor |
| 摘要 |
A media discriminating and presence sensor that can detect and discriminate between paper and transparency uses a light emitting diode and two defectors configured so as to measure both diffuse and specular reflectivity of the media, and a media support surface that suppresses unwanted reflections.
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| 申请公布号 |
US5139339(A) |
申请公布日期 |
1992.08.18 |
| 申请号 |
US19890457067 |
申请日期 |
1989.12.26 |
| 申请人 |
XEROX CORPORATION |
发明人 |
COURTNEY, JOHN E.;HUBBLE, III., FRED F.;CHAN, KENNETH I. |
| 分类号 |
G01V8/20;B41J11/00;B65H7/14;G01N21/47;G01N21/55;G01S17/02;G03G15/00;G03G21/00 |
主分类号 |
G01V8/20 |
| 代理机构 |
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