| 摘要 |
In an ink jet printer having a plural number of line heads arranged in a paper printing direction, it is sought to render the printing density high in the nozzle row direction without the need to exchange the line heads. The invention provides an ink jet printer in which line heads other than at least one of the line heads 3 are each displaceable by a distance that is equal to a part per the plural number of a nozzle pitch in the line head in a direction of the nozzle row.
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