An inspection system for inspecting an imprinted substrate on a printing press has a light source, a contact image sensor, and a processor. The light source is configured to illuminate a portion of the substrate which has been imprinted with different colors at a plurality of printing units of the printing...http://www.google.es/patents/US7732796?utm_source=gb-gplus-sharePatente US7732796 - Inspection system for inspecting an imprinted substrate on a printing press
Inspection system for inspecting an imprinted substrate on a printing press
