Patent ID: 9375962
Filing Date: 2016-06-28
CPC Classification: B41J

Claim Text:
1. A method of test pattern analysis in a printer comprising: operating with a controller a first plurality of inkjets to form a first row of printed marks arranged in a cross-process direction on an image receiving surface with reference to predetermined image data that include the first row of marks and a second row of marks, the first row of marks including a first plurality of marks and a second plurality of marks, the first plurality of marks being separated from the second plurality of marks by a first gap in the predetermined image data in a first location in the cross-process direction, the first location being different than a second location in the cross-process direction of a second gap formed between a third plurality of marks and a fourth plurality of marks in the second row in the predetermined image data; operating with the controller a second plurality of inkjets to form the second row of printed marks arranged in the cross-process direction on the image receiving surface with reference to the predetermined image data of the second row of marks, the second row of printed marks being offset from the first row of printed marks in a process direction; operating with the controller a third plurality of inkjets with reference to a third row of marks in the predetermined image data to form a first printed mark and a second printed mark in a third row of printed marks on the image receiving surface, the first printed mark in the third row of printed marks being located between the first plurality of printed marks and the second plurality of printed marks in the cross-process direction, the second printed mark in the third row of printed marks being located between the third plurality of printed marks and the fourth plurality of printed marks in the cross-process direction, and the third row of printed marks being offset from the first row of printed marks and the second row of printed marks in the process direction; generating with an optical sensor scanned image data of the first row, the second row, and the third row of printed marks; and identifying with the controller the first row of printed marks in the scanned image data with reference to a location of the first plurality of printed marks, a location of the second plurality of printed marks, and a location of the first gap on the image receiving surface between the first plurality of marks and the second plurality of marks in the first row of marks in the cross-process direction.