Heidelberger Druckmaschinen Ag

Annika Kamper

Nikolaus Pfeiffer

Andreas Henn

Steffen Neeb

Hans Koehler

Ralf Tita

Roland Stenzel

Nicolas Martin

Hans Köhler

Sepideh Samadzadegan

Nicklas Norrick

A method compensates for position-dependent density fluctuations of print nozzles in an inkjet printing machine by use of a computer. The computer produces compensation profiles for the position-dependent density fluctuations over all the print heads for all print substrates used, calculates an mean profile from these, and applies the mean profile to compensate for the position-dependent density fluctuations in the inkjet printing machine. When one or more print heads of the inkjet printing machine are replaced, the computer calculates a new compensation profile for only one print substrate. The computer derives a new mean profile from this, and the computer calculates and applies the new mean profile using the old compensation profiles for the remaining print substrates.

Density fluctuation compensation during print head replacement

Growing community of inventors

Dossenheim, Germany

Annika Kamper