The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2004
Filed:
Aug. 31, 2001
Applicant:
Inventor:
Axel Hauck, Karlsruhe, DE;
Assignee:
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41L 3/900 ;
U.S. Cl.
CPC ...
B41L 3/900 ;
Abstract
First, the inking behavior of the printing units of a multicolor rotary printing machine is determined by means of test forms. The inking nonuniformities on the test forms are transmitted to the pre-press stage. Using the data about the inking nonuniformities of the test forms, the raster tonal values of the color separations of a printing form are modified in such a way that the inking nonuniformities are compensated locally on the basis of the location of their occurrence in the print on the printing forms or films.