| 摘要 |
A fluid storage device for storing a fluid, and a fluid ejection head for ejecting the fluid fed from the fluid storage device are provided. The fluid storage device is provided with a storage tank, and a spherical body formed of a magnetic material and provided inside the storage tank. Also provided are three or more attraction devices for attracting the spherical body; and a switching device for switching between attraction and non-attraction by the attraction devices according to a movement path selected from a plurality of movement paths based on a predetermined selection condition, and moving the spherical body inside the storage tank in the selected movement path. |
