Method for carrying out a printing operation on an inkjet printing machine

US10397413B2 · kind B2 · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Sebastian Eggert · Neuss, DE
• Helmut Siegeritz · Kronshagen, DE
• Stefan Bollmann · Rellingen, DE
• Nikolaus Pfeiffer · Dover, US

Key dates

• Filing date: Mar 20, 2018
• Grant date: Aug 27, 2019
• Expiry date: Mar 20, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N1/6041
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A method for printing on an inkjet printing machine including color space transformation between target and process color spaces using a computer, includes calibrating the machine by printing and colorimetrically measuring a process color space test chart for printing in the target color space including printing-operation-related limitations in the applied ink amount. The generated measured values correspond to sampling points in the measured target color space. The sampling points are interpolated to define further sampling points. The color space transformation uses sampling points in the target color space and input values from the chart in the process color space corresponding to sampling points in the target color space. The physical variable of ink drop volume is directly used for ink application limitations and input values in the process color space. The calibration of the machine is adapted and the printing operation is carried out.