| 摘要 |
PROBLEM TO BE SOLVED: To reduce the possibility of deformation and damage of a space forming a passage.SOLUTION: A passage structure 32 includes: a passage chamber RB to which an ink is supplied; a sealing body 44 forming a wall surface of the passage chamber RB; a valve body which controls circulation/interruption of the ink in conjunction with deformation of the sealing body 44; a passage chamber RC communicating with the passage chamber RB; and a sealing body 46 forming a wall surface of the passage chamber RC. Rigidity of the sealing body 46 is higher than rigidity of the sealing body 44.SELECTED DRAWING: Figure 4 |
