Patent · US Active

Shrink-print method for detecting and compensating for defective printing nozzles in an inkjet printing machine

US10391785B1 · kind B1 · utility

1Cited by

3References

11Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Ilias Trachanas · Plankstadt, DE
Axel Hauck · Karlsruhe, DE

Key dates

Filing date	Nov 15, 2018
Grant date	Aug 27, 2019
Priority date	—
Expiry date	Nov 15, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30144
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for detecting and compensating for defective printing nozzles in an inkjet printing machine by using a computer, includes shrinking the height of a digitally available image to the image height of a print control strip by using the computer while the image width remains uninfluenced, printing the shrunk digital image onto a printing substrate, recording the printed shrunk digital image by using at least one image sensor, comparing the recorded image with the shrunk digital image by using the computer, detecting defective printing nozzles for the digital image by using the computer based on the comparison and compensating for the detected defective printing nozzles. The digital image is printed onto the following printing substrate by using defective printing nozzle compensation.

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