Human observation to perceived difficult test patterns, and methods analysis of image data corresponding to the test pattern of the ink-jet printer

摘要

PROBLEM TO BE SOLVED: To improve a test pattern that is printed to distinguish the displacement of the alignment of print heads from a print head property that affects the ejection of ink from the print heads, and to provide a method for analyzing image data corresponding to the printed test pattern.;SOLUTION: The method generates the test pattern that is hardly perceptible to human observation, but detectable by an imaging device in a printer on an image receiving member. The method achieved in the printer analyzes image data of a dash in the test pattern irregularly distributed in a process direction in a region of the image receiving member and locates the print head in the printer to detect a missing inkjet in the printer.;COPYRIGHT: (C)2012,JPO&INPIT