Printing – Rolling contact machines – Rotary
Patent
1996-06-05
1998-09-29
Yan, Ren
Printing
Rolling contact machines
Rotary
101226, 226 18, 226 20, B41F 1354
Patent
active
058133372
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.
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Hackler Mark
Horvath Michael J.
Knier Robert
Peters Lawrence R.
Tabor Keith A.
Quad/Tech Inc.
Yan Ren
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