EP 3530471 A1 20190828 - METHOD AND APPARATUS FOR COMPENSATING PRINTING ELEMENT SHOOTING POSITION DEVIATION
Title (en)
METHOD AND APPARATUS FOR COMPENSATING PRINTING ELEMENT SHOOTING POSITION DEVIATION
Title (de)
VERFAHREN UND VORRICHTUNG ZUR KOMPENSATION VON DRUCKELEMENTSCHUSSPOSITIONSABWEICHUNG
Title (fr)
PROCÉDÉ ET APPAREIL DE COMPENSATION D'ÉCART DE POSITION DE TIR D'ÉLÉMENT D'IMPRESSION
Publication
Application
Priority
EP 18158878 A 20180227
Abstract (en)
The present invention relates to a method of controlling an inkjet printing device comprising a print head. In the method of controlling an inkjet printing device of the present invention an inkjet printing device comprises a print head, wherein the print head comprises an array of printing elements arranged to eject a number of droplets of a liquid onto a recording medium resulting in an array of dots on the recording medium. Depending upon the magnitude of the shooting position deviation of the printing elements of the array, in order to avoid the appearance of artefacts in the printed image, the present invention creates a second raster image derived from a first raster image created from the image to be printed, in which a redistribution of the pixel coverage values is performed based on said magnitude of the shooting position deviation of the printing elements of the array.
IPC 8 full level
B41J 2/21 (2006.01)
CPC (source: EP)
B41J 2/2139 (2013.01); B41J 2/2142 (2013.01)
Citation (applicant)
US 7289248 B2 20071030 - YAMAZAKI YOSHIROU [JP]
Citation (search report)
- [XI] EP 2789468 A1 20141015 - FUJIFILM CORP [JP]
- [X] EP 3216611 A1 20170913 - HEIDELBERGER DRUCKMASCH AG [DE]
- [A] EP 1010531 A1 20000621 - HEWLETT PACKARD CO [US]
- [A] US 9738066 B1 20170822 - KROON STEPHEN M [US]
- [A] US 2017368839 A1 20171228 - KOEHLER HANS [DE], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 18158878 A 20180227