Printhead error compensation

A method for calibrating one or more printheads includes printing a reference image using a first portion of image forming points of a first printhead, printing a diagnostic image using a second portion of image forming points of either the first printhead or a second printhead, detecting an optical...

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Bibliographische Detailangaben
Hauptverfasser:	HEILES TOD S, MEGAW R. JOSEPH, LIU HSUE-YANG
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING ELECTRIC DIGITAL DATA PROCESSING i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PERFORMING OPERATIONS PHYSICS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A method for calibrating one or more printheads includes printing a reference image using a first portion of image forming points of a first printhead, printing a diagnostic image using a second portion of image forming points of either the first printhead or a second printhead, detecting an optical density of the combined reference image and the diagnostic image and determining a compensation value based upon the optical density.