Method and device for toning detection in a printing press
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Aug 29, 2002
app pub date -
Oct 23, 2001
filing date -
Oct 23, 2000
priority date (Note) -
Abandoned
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Abstract
A toning in the form of a circumferential printing ink band (7) on printing plates on a rotating plate cylinder (1) shall be detected during operation. The reflectivity of the surface of the printing plates is axially scanned by means of a sensor (4), and a reflectivity deviating from a predetermined value in the area in question is taken as an indication of a toning.
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