| 摘要 |
PROBLEM TO BE SOLVED: To provide an excellent image which is free of an impact deviation by eliminating an influence of a conveyance airflow and a self airflow generated below an ink head and thereby improving impact position accuracy.SOLUTION: A printer includes a storage part 334 which stores profile data in which a discharge frequency of discharge of an ink droplet 20 in every predetermined unit time and an impact deviation quantity are related; a correction determination part 333c which selects 30 dots in an image as a unit line D1, integrates a total discharge amount of the unit line D1, and compares the total ink discharge amount with a predetermined threshold to determine whether discharge timing control can be performed in printing processing; and a discharge control part 333b which finds a discharge frequency of discharge at predetermined time intervals from the total ink discharge amount of the unit line D1, calculates an impact deviation quantity from the discharge frequency, and controls discharge timing corresponding to the impact deviation quantity. |
