Patent ID: 7472983
Filing Date: 2009-01-06
Classification: B41J,G06K

Abstract:
1. A multi swath printing method for printing an image using an ink jet printing system to reduce image banding, wherein the ink jet printing system comprises at least one printhead with at least one ink ejection nozzle having a scan axis, wherein the method comprises the steps of: a. providing a plurality of individual print masks, wherein each individual print mask of the plurality of individual print masks comprises a x-axis, a y-axis, and at least one grouping of two dimensional patterns of different frequencies, wherein the at least one grouping of two dimensional patterns in a first print mask of the plurality of individual print masks is configured to achieve an asymmetrical density profile across the scan axis and wherein the individual print masks are configured to be out-of-phase from one another; b. combining the plurality of individual print masks to form an input mask set wherein each individual print mask of the input mask set is assigned to a color of the ink jet printing system; c. printing images using the input mask set.