Method and apparatus for checking printing and cutting quality i

Details Method and apparatus for checking printing and cutting quality i Method and apparatus for checking printing and cutting quality i

1991-04-18

1993-08-31

Ruggiero, Joseph

Boots, shoes, and leggings

83 74, 83 764, 83371, 226 28, 36447409, G06F 1546

Patent

active

052414833

ABSTRACT:
During, for example, package production, printed sheets are carried by gripper bars through a cutting station of a machine. Front waste strips are removed from the printed sheets and are carried to an ejection device, but before reaching the ejection device, a camera and flash scanning unit scans the area of the front waste strip which has been marked with color registration marks and also includes at least a portion of a cut edge. An image processing unit compares this sample image to a reference image to conduct a quality check on the precision of the printing and cutting registration.

REFERENCES:
patent: 4653399 (1987-03-01), Kuehfuss
patent: 4719575 (1988-01-01), Gnuechtel
patent: 4768410 (1988-09-01), Wood
patent: 4781090 (1988-11-01), Feldkamper et al.
patent: 4809188 (1989-02-01), Willits et al.
patent: 4951223 (1990-08-01), Wales et al.
patent: 5131301 (1992-07-01), Gergek

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