Patent ID: 8979238
Filing Date: 2015-03-17
Classification: B41J,G06K

Abstract:
1. An image processing method for printing an image on a print medium by a relative scan between the print medium and a print head provided with a plurality of nozzles that eject ink, the method comprising: an obtaining step of obtaining multi-valued data corresponding to a first pixel to be printed on the print medium by using a nozzle included in the plurality of nozzles, and a first parameter that indicates a concentration degree of ink in the nozzle at a timing for printing the first pixel; a determining step of determining, on the basis of the obtained first parameter and the multi-valued data corresponding to the first pixel, a correction value; a first generating step of generating, on the basis of the determined correction value and the multi-valued data, corrected multi-valued data; a second generating step of generating, on the basis of the corrected multi-valued data, ejection data that indicates ejection or non-ejection of the ink from the nozzle; and a third generating step of generating, on the basis of the first parameter and the ejection data, a second parameter that indicates a concentration degree of ink in the nozzle at a timing for printing a second pixel that is a pixel printed next to the first pixel, by the nozzle, on the print medium, wherein a correction value that is determined, in the determining step, in a case where the concentration degree of the ink in the nozzle indicated by the first parameter is a first degree, is larger than a correction value that is determined, in the determining step, in a case where the concentration degree of the ink in the nozzle indicated by the first parameter is a second degree, which is lower than the first degree.