Patent Number: 6,192,801

Title: Measurement field group for detecting quality data in multicolor printing of single editions

Abstract: A measuring field group for detecting quality data in the multicolor printing of single editions has measuring fields printed on a printed product in an optically scannable manner with at least one color-measuring surface (F) for determining a color density, a surface coverage or a tristimulus value for each of the measuring fields. To obtain register mark as well as shifting and doubling values simultaneously, the measuring fields have at least one lateral color strip (S) each, which is printed in the same print together with the color-measuring surface (F) of its measuring field, is narrow in relation to the dimensions of the color-measuring surface (F) of its measuring field, and extends at a likewise short lateral distance from the color-measuring surface (F) in relation to the dimensions of this color-measuring surface (F).

Inventors: Papritz; Stephan (Rubigen, CH), Heuberger; Karl (St. Gallen, CH), Kunzli; Hansjorg (St. Gallen, CH), Datwyler; Markus (St. Gallen, CH)

Assignee: Maschinenfabrik Wifag

International Classification: B41F 33/00 (20060101); B41F 005/18 (); B41L 047/56 (); G06K 009/00 ()

Expiration Date: 02/27/2018