| 摘要 |
An ink jet recording apparatus includes a color ink recording head 6 having nozzle openings Nc arranged at pitch Pc in a paper feed direction as NxP (N is an integer of four or more being not a prime number) when pitch of dots required for print is P, and a black ink recording head 5 having m nozzle openings Nb 1 (m is a divisor of two or more, of N) arranged at pitch Pb 1 in the paper feed direction as P and nozzle openings Nb 2 arranged at pitch Pb 2 in the paper feed direction as {N-(m-1P. Paper feed is executed in units of mP and image data is printed by the color ink recording head 6 and text data is printed by the black ink recording head 5 at the same time. Accordingly, the text data and the image data existing in the same path can be printed at their respective optimum resolutions.
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