Patent ID: 9114630
Filing Date: 2015-08-25
Classification: B41J,G06K,H04N

Abstract:
1. A printing control apparatus for printing by using a recording head on which a plurality of nozzles are arranged in a row and causing ink droplets to be discharged from each of the nozzles, the printing control apparatus comprising: a dither halftone component configured to convert printing data into a multi-value dot pattern by using a mask pattern for converting multi-gradation printing data into multi-value data representative of presence or absence of a dot, where a reference pattern is a pattern that includes a first dot row in which two or more dots are arranged side by side in a main scanning direction, which is a direction in which the recording head scans in a relative fashion with respect to a printing medium, and a second dot or second dot row that is arranged side by side in the main scanning direction, the second dot or second dot row having a number of dots not greater than a number of dots of the first dot row including a dot adjacent in an oblique direction with respect to the main scanning direction to a predetermined dot included in the first dot row, the second dot or second dot row being adjacent in a state of having been offset in the main scanning direction from the first dot row in a case where the number of dots is the same as the number of dots in the first dot row, wherein the dither halftone component carries out halftoning by using a first mask pattern with which a probability that the reference pattern occurs in a dot pattern that is generated is greater than a probability that the reference pattern occurs in a dot pattern that is generated on the basis of a mask pattern of a blue noise characteristic in a case where the ink duty is 25%.