SHRINK-PRINT METHOD FOR DETECTING AND COMPENSATING FOR DEFECTIVE PRINTING NOZZLES IN AN INKJET PRINTING MACHINE

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, printi...

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Bibliographische Detailangaben
Hauptverfasser:	TRACHANAS, ILIAS, HAUCK, AXEL
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING HANDLING RECORD CARRIERS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME IMAGE DATA PROCESSING OR GENERATION, IN GENERAL LINING MACHINES PERFORMING OPERATIONS PHYSICS PRESENTATION OF DATA PRINTING RECOGNITION OF DATA RECORD CARRIERS SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	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.