- 专利标题： Method and device for measuring the contamination of LEDs and inkjet printing machine and offset printing press having the device
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申请号： US15215900申请日： 2016-07-21
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公开(公告)号： US09969195B2公开(公告)日： 2018-05-15
- 发明人: Oliver Gottschalt , Michael Kohlmann
- 申请人： HEIDELBERGER DRUCKSMASCHINEN AG
- 申请人地址： DE Heidelberg
- 专利权人： Heidelberger Druckmaschinen AG
- 当前专利权人： Heidelberger Druckmaschinen AG
- 当前专利权人地址： DE Heidelberg
- 代理商 Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- 优先权： DE102015213785 20150722
- 主分类号： B41J29/38
- IPC分类号： B41J29/38 ; B41J2/45 ; B41F7/02 ; G01K13/00 ; B41F33/00 ; B41F23/04
摘要：
A method and a device are provided for measuring the contamination of a transparent covering of a plate having LED emitters which are cooled individually or in groups by cooling units. The temperatures of the individual or grouped cooling units are measured and conclusions about contamination are drawn from a comparison of the temperatures with one another. An inkjet printing machine and an offset printing press having the device are also provided.
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