To prevent fine particles in a liquid from precipitating while avoiding decrease in cost of the liquid and suppressing complication of a structure of a liquid supplying system.
The ink supplying system 1 includes: an inkjet head 2; an ink storing container 3; a first intermediate tank 4 for temporarily storing the ink supplied from the ink storing container 3; a second intermediate tank 5 arranged between the ink storing container 3 and the first intermediate tank 4, and temporarily storing the ink supplied from the ink storing container 3; a liquid feed pump 6 for moving back and forth the ink in a piping t1 communicating between the first intermediate tank 4 and the second intermediate tank 5; and a cleaning liquid supplying apparatus 7 for replacing the ink in a piping t1 communicating between the first intermediate tank 4 and the inkjet head 2, with a cleaning liquid. By moving back and forth the ink in the piping t1 by the liquid feed pump 6, the ink in the piping t1 is prevented from being left for a long time under a static condition, in order to prevent the ink fine particles from precipitating.
Yoshinori Shimizu
Osaka Koichi
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