Fluid ejection device and fluid stirring method for the same, and fluid storage device

The present invention provides a fluid ejecting apparatus and a fluid agitation method and a fluid reservoir means and a fluid agitation method. The fluid ejection device comprising: a reservoir fluid reservoir means (20) of the fluid; and a fluid ejecting head (10) of fluid ejected from the fluid reservoir of the supply device. Fluid reservoir means includes: a storage tank (2OA); sphere (81) and configured and formed of a material comprising a magnetic material inside the storage tank. The fluid reservoir means having: three or more induction devices (M1 ~ M4) induced spherical body; and a switching device (CONT), which is induced by means of the mobile from a plurality of path selection based on a predetermined movement path selection condition release induced induction and switching, according to the selected path of movement inside the spherical body is moved in the storage tank.