| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: when an effect of ejection frequency of a head is not considered in adjustment, a feed rate may be improper.SOLUTION: A plurality of mask patterns are overlay-printed by a plurality of paths. Ejection duty of each of the mask patterns is decreased, so as not to be overlapped each other. Since the ejection duty is decreased, weight of ink is reduced in the head having the characteristics. Since the plurality of mask patterns are not overlapped each other in overlay printing, a dot diameter never increases. While the plurality of mask patterns are printed, one mask pattern is formed. The mask pattern (adjustment patch) in consideration of reduction in weight of ink depending on the ejection duty can be provided, to allow adjustment at an optimum feed rate. |
