| 摘要 |
A recording medium on which a test image testing an operation to a plurality of liquid droplet ejecting elements arrayed in a liquid droplet ejecting head is drawn, the test image comprising a straight line set having a predetermined number of straight lines which are evenly spaced from each other, and being drawn parallel to each other in a predetermined direction, each of the straight lines having start points and end points which are disposed thereon, and the test image having ratio of width of each of the straight lines to interval between the straight lines adjacent to each other, the ratio satisfying the following formula (1): <?in-line-formulae description="In-line Formulae" end="lead"?>0.15<the width of each of the straight lines/the interval between the straight lines<0.90 . (1)<?in-line-formulae description="In-line Formulae" end="tail"?>
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