| 摘要 |
PROBLEM TO BE SOLVED: To achieve accurate position adjustment by simple step and constitution.SOLUTION: Cams 31, 32 are provided as a position adjustment mechanism of a head unit 3x. The cams 31, 32 have rotation centers 31b, 32b decentered as long as a distance E from centers 31a, 31b. The cam 31 is restricted to a fourth direction (arrangement direction of a discharge port 30) D4 and a fifth direction (direction orthogonal to the fourth direction) D5, and yet, the cam 32 is free in the fifth direction. When the cams 31, 32 are rotated clockwise by &thetas;1, &thetas;2 respectively, positions P1, P2 are rotationally moved around the rotation centers 31b, 32b, to thereby perform position adjustment of the head unit 3x. |
