| 摘要 |
PROBLEM TO BE SOLVED: To suppress occurrence of stripe unevenness when an image is recorded at individual contact angles on the plurality of contact angles of ink to a recording medium.SOLUTION: When a second threshold matrix is generated in an image recorder 1, influence of a distance in a row direction to deviation of distribution of a threshold matrix element to which a threshold is applied becomes larger than that of a distance in a column direction (namely, moving direction of a recording medium 9) compared to a case when a first threshold matrix is generated when a second threshold matrix is generated. When an image is recorded at a first contact angle, the first threshold matrix is used. When the image is recorded at a second contact angle which is larger than the first contact angle and with which droplets of ink, which land on the recording medium 9, are easily drawn near the droplets of other ink, the second threshold matrix is used. Thus, the droplets of the ink are suppressed from being drawn near in the moving direction, and occurrence of stripe unevenness when the image is recorded at the plurality of contact angles of the ink to the recording medium can appropriately be suppressed. |
