Patent Number: 7,732,796

Title: Inspection system for inspecting an imprinted substrate on a printing press

Abstract: 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 press. The contact image sensor has a plurality of sensing elements. Each sensing element senses light reflected by a corresponding region on the substrate to produce data representative of the corresponding region printed on the substrate. The processor is configured to receive the data representative of the imprinted substrate and to compare the data representative of the corresponding region printed on the substrate with stored reference data.

Inventors: Pearson; Eric (Consestogo, CA), Hansen; Mark R. (Wauwatosa, WI), Moersfelder; Bradly S. (Waukesha, WI), Noffke; Patrick James (Devon Park, AU), Seymour; John C. (Genesee Depot, WI)

Assignee: Quad/Tech, Inc.

International Classification: G01N 21/86 (20060101); G01V 8/00 (20060101)

Expiration Date: 2022-06-08 0:00:00