System for controlling registration of a web and method of use t

Details System for controlling registration of a web and method of use t System for controlling registration of a web and method of use t

1997-12-02

2000-08-22

Johns, Andrew W.

Image analysis

Applications

Document or print quality inspection

382287, 101486, G06K 900

Patent

active

061084360

ABSTRACT:
The invention relates to a method for monitoring the quality of a moving web of multicolor print during a printing process, including monitoring the mutual location of the various colors on the basis of marks arranged on the web of print and further monitoring the location in longitudinal direction and transversal direction of the web of print in relation to at least one printing press.

REFERENCES:
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patent: 4736680 (1988-04-01), Wales et al.
patent: 4887530 (1989-12-01), Sainio
patent: 4932320 (1990-06-01), Brunetti et al.
patent: 5018213 (1991-05-01), Sikes
patent: 5115141 (1992-05-01), Gold
patent: 5138667 (1992-08-01), Roch et al.
patent: 5305099 (1994-04-01), Morcos
patent: 5329466 (1994-07-01), Monney
patent: 5764367 (1998-06-01), Schaede et al.
patent: 5813333 (1998-09-01), Ohno

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