| 摘要 |
PROBLEM TO BE SOLVED: To enable execute ink jet recording free from printing misregistration between large droplets and small droplets by making ink droplets of one size to be injected by forward motion and those of other size by backward motion in an ink jet recorder that can inject large and small ink droplets. SOLUTION: A left sensor 7 detects the initial position when a print head moves left, and a CPU 2 sets correctly the print position for the left first row on paper P when an ink jet section moves in the forward direction on the basis of output of the left sensor. Similarly, a right sensor 6 detects the initial position when the print head 9 moves right, and sets the print position for the right first row on the paper P when the ink jet section moves in the backward direction. In such case, large-droplet printing is performed in forward motion I and small-droplet printing in backward motion II. Advance position correction by the CPU 2 prevents printing misregistration from occurring between large droplets I and small droplets i on the basis of output of the right and left sensors. |
