Inventors:
Lawrence R. Peters - Brookfield WI
Keith A. Tabor - Richfield WI
Michael J. Horvath - Germantown WI
Mark Hackler - Pewaukee WI
Robert Knier - Muskego WI
Assignee:
Quad/Tech, Inc. - Sussex WI
International Classification:
B41F 1354
Abstract:
A system for controlling the lateral position of a web in a web-fed printing press having a printing unit. The web has a series of printed images thereon. The system includes an optical scanner for sensing the lateral position of an image on the web and for generating a first signal. The system also includes an edge sensor which senses the lateral position of a corresponding web edge and which generates a second signal. A controller processes the first and second signals to produce a control signal. The systems also includes a positioning means responsive to the control signal for laterally positioning the web.