To provide a liquid supply system which can rapidly level a density difference of a precipitable substance, in a system for intermittently supplying a liquid including the precipitable substance such as a pigment through a capillary, for example, as an embodiment, to provide a liquid supply system which shortens a time for a pigment precipitated after a pause period of an inkjet printer, to be uniformly mixed and then to reach an ordinary pigment density.

The liquid supply system supplies a liquid including a precipitable substance 3a through a capillary 3, and is provided with a region having: a larger width than the inner diameter of the capillary at least in part of capillary; and a difference in height in a direction to supply a liquid.