| 摘要 |
PROBLEM TO BE SOLVED: To print a two dimensional code with which a reading error by a two dimensional code reader hardly occurs. SOLUTION: When printing a black color cell 84 of the two dimensional code, an ink is discharged to the position of a black color dot 84a from a nozzle, but the ink is not discharged to the position of an ink bleeding regulation part 84b. At this time, the ink is discharged to the three directions of the four directions of the ink bleeding regulation part 84b which is arranged at the outermost periphery of an ink discharge area Ar. The ink tends to bleed toward the ink bleeding regulation part 84b, not toward the direction other than the ink bleeding regulation part 84b until the ink dries after adhering to a recording paper sheet S. In other words, the ink bleeding regulation part 84b plays the roll of the so-called temporary water storage pond. Resulting from the above, the ink discharged to the position of the outermost black color dot 84a of the ink discharge area Ar smears away the ink bleeding regulation part 84b with black color and hardly spreads outside exceeding the outer edge of the ink discharge area Ar. COPYRIGHT: (C)2008,JPO&INPIT
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