| 摘要 |
The object of the invention is to settle a phenomenon that a quantity of jetted ink increases at the end of an image and a density increases in a share-mode ink jet head. In a three-split driven head, a first group prints so that a diameter of a dot is reduced by reducing the quantity of jetted ink as dots at both ends, a second group similarly prints, and a third group also similarly prints. Since each three dots at both ends in a main scanning direction of an acquired image are smaller than dots in the middle, a phenomenon that a quantity of jetted ink increases at the end of the image and density increases is reduced.
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