Method for analyzing image data corresponding to the test pattern of the effective test patterns and inkjet printers for precise registration of the inkjet printhead.

摘要

PROBLEM TO BE SOLVED: To analyze a test pattern generated on an image receiving member by a printer for identifying registration between print heads.;SOLUTION: The method includes: identifying a process direction position for each row of dashes in a plurality of rows of dashes in image data of a test pattern printed on an image receiving member; identifying a center of each dash in a cross-process direction; identifying an inkjet ejector that formed each dash in the row of dashes; identifying a process direction position for each print head in the printer; identifying a cross-process displacement for each column of print heads; identifying a stitch displacement in the cross-process direction between neighboring print heads in a print bar unit that print a same color of ink; and operating an actuator to move at least some of the print heads in the printer with reference to the identified process direction positions, cross-process displacements, and the identified stitch displacements.;COPYRIGHT: (C)2012,JPO&INPIT