Patent · US Active

Method for determining color and/or density values and printing apparatus configured for the method

US7515267B2 · kind B2 · utility

16Cited by

7References

34Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Peter Ehbets · Bellinzona, CH
Wolfgang Geissler · Bad Schönborn, DE
Adrian Kohlbrenner · Thalwil, CH

Key dates

Filing date	Nov 3, 2006
Grant date	Apr 7, 2009
Priority date	—
Expiry date	Mar 12, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41P2233/51
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

In a method for determining color and/or density values for use in monitoring and regulating a printing process in a printing apparatus, specifically in a sheet-fed offset printing press, measuring areas of a printed sheet are measured photoelectrically during the printing process, directly in or on the running printing apparatus. From the measured values obtained in the process, the color and/or density values for the relevant measuring areas are formed. From the measurement, measured value deviations caused directly in the printing process with respect to a measurement outside the printing process can be corrected computationally.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.