TWO-STAGE DENSITY COMPENSATION METHOD

A computer-assisted method for compensating for position-dependent density fluctuations in printing nozzles of inkjet printing heads in an inkjet printing machine includes implementing pre-compensation for all color separations of a print image during the halftoning process in the pre-print departme...

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Bibliographische Detailangaben
Hauptverfasser:	TRACHANAS, ILIAS, KLOEPPNER, FLORIAN, HAUCK, AXEL, STRITZEL, BERND
Format:	Patent
Sprache:	eng
Schlagworte:	CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A computer-assisted method for compensating for position-dependent density fluctuations in printing nozzles of inkjet printing heads in an inkjet printing machine includes implementing pre-compensation for all color separations of a print image during the halftoning process in the pre-print department on the basis of a pre-defined density compensation profile by using a pre-print computer. Online compensation is implemented for all color separations of the now pre-compensated print image during an on-going production run for producing the print image on the basis of a re-calculated density compensation profile by using a control unit of the inkjet printing machine.