专利检索 ap:("HEIDELBERGER DRUCKSMASCHINEN AG") AND inv:"Michael Kohlmann" 第 1 页

1.

发明授权
Method and device for measuring the contamination of LEDs and inkjet printing machine and offset printing press having the device 有权

公开(公告)号：US09969195B2

公开(公告)日：2018-05-15

申请号：US15215900

申请日：2016-07-21

申请人： HEIDELBERGER DRUCKSMASCHINEN AG

发明人： Oliver Gottschalt , Michael Kohlmann

IPC分类号： B41J29/38 , B41J2/45 , B41F7/02 , G01K13/00 , B41F33/00 , B41F23/04

CPC分类号： B41J29/38 , B41F7/02 , B41F23/0453 , B41F33/00 , B41J11/002 , G01K13/00

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.