摘要 |
PROBLEM TO BE SOLVED: To provide a serial image forming device in which printing speed is improved when images are formed with a resolution higher than the pitch between nozzles. SOLUTION: A carriage 23 is provided with five heads 121y, 121m, 121c, 121k1 and 121k2. Among the two heads 121k1 and 121k2 which discharge a black ink, the head 121k1 is placed at the same position in the sub-scanning direction as the heads 121y, 121m and 121c which discharge other colors. The head 121k2 is placed at a position that is shifted by half the distance B of the pitch A between the nozzles in the sub-scanning direction to the heads 121k2 and 121k1. COPYRIGHT: (C)2005,JPO&NCIPI
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