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:
Mar. 09, 2004
Filed:
Apr. 15, 2002
Armin Weichmann, Kissing, DE;
MAN Roland Druckmaschinen AG, Offenbach am Main, DE;
Abstract
A method of varying the ink density of the full tone in printing within a rotary printing machine with an ink application system which can provide a constant quantity of ink which, in spite of constant ink supply from the inking unit, permits control of the full-tone density or adaptation of the raster tonal values in the print. The method includes setting the binary image on a printing plate. A basic raster of raster points, which determines the area coverage of the binary image, is produced on the printing plate for the variable-area image information. The basic raster is then superimposed on a fine microraster in such way that the area coverage of the basic raster is reduced by a percentage which can be set between 0% and 100%.