| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the following problem: stable droplet discharge cannot be performed due to deviation from a proper negative pressure range because the use of a displacement member causes deformation of a film-like member and changes a height.SOLUTION: A displacement member 51 having one end rotatably supported by a supporting point 52 is arranged outside a tank case 31 for a head tank 3. A magnet 53 is attached to the displacement member 51. A compression spring 34 is formed of a material (magnetic material) on which a magnetic force generated by the magnet 53 acts. The displacement member 51 is brought into contact with an outer surface of a film-like member 33 by the magnetic force.</p> |
