Patent · US Active

Method for compensating for defective printing nozzles in an inkjet printing machine

US10696062B2 · kind B2 · utility

10Cited by

2References

6Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Axel Hauck · Karlsruhe, DE
Martin Mayer · Ladenburg, DE
Ilias Trachanas · Plankstadt, DE

Key dates

Filing date	Jan 18, 2019
Grant date	Jun 30, 2020
Priority date	—
Expiry date	Jan 18, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2025/008
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method for compensating for defective printing nozzles in an inkjet printing machine by way of a computer. Defective printing nozzles are compensated for by an increased ink drop volume of neighboring printing nozzles and the real positions of the print dots of all printing nozzles are determined and, to compensate for a printing nozzle failure, the required ink drop volumes of the respective neighboring printing nozzles are calculated for every printing nozzle as a function of the real positions of the print dots of the respective neighboring printing nozzles. In addition to increased ink drop volumes of the respective neighboring printing nozzles, reduced ink drop volumes are calculated for the respective next but one printing nozzles and all ink drop volumes are calculated based on the print dots of the respective printing nozzles.

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