| 摘要 |
PROBLEM TO BE SOLVED: To provide an image formation device by which image density unevenness after ink replacement can be reduced even when the amount of ink to be discarded in the ink replacement is reduced.SOLUTION: An image formation device has a discharge head for discharging ink and discard means for discarding the ink from the discharge head. In the discharge head, at least two inks having different color material densities are replaced in the same discharge head to be discharged. In ink replacement in the discharge head, at least a part of one ink remaining in the discharge head is discarded by the discard means, and then the other ink is filled to the same discharge head. |
