System and method for scheduling printhead purging in an inkjet printer

A method of inkjet printer operation indicates a need for printhead purging without requiring analysis of printed images to detect streakiness in the images. The method compares terms of a histogram of a filtered response of an inkjet status vector to a streakiness metric to determine whether the di...

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Bibliographische Detailangaben
1. Verfasser:	Schweid, Stuart A
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 method of inkjet printer operation indicates a need for printhead purging without requiring analysis of printed images to detect streakiness in the images. The method compares terms of a histogram of a filtered response of an inkjet status vector to a streakiness metric to determine whether the distribution of inoperative inkjets in a printhead enables missing ink techniques to be used to compensate for inoperative inkjets in the printhead.