Patent ID: 8662625
Filing Date: 2014-03-04
Classification: B41J,H04N

Abstract:
1. A method for analyzing image data of a test pattern generated by a printer comprising: identifying, with reference to a first threshold and a second threshold, 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, the test pattern being formed by each printhead in a plurality of printheads in a printer forming at least one dash in each row of dashes in the plurality of rows of dashes; identifying a center of each dash in a cross-process direction; identifying an inkjet that formed each dash in the plurality of rows of dashes; and identifying a cross-process direction position for one printhead in the plurality of printheads in the printer with reference to the identified cross-process direction centers of dashes formed by the identified inkjets in the one printhead; the identification of the process direction position comprising: