公开(公告)号：US11427007B2

公开(公告)日：2022-08-30

申请号：US17097383

申请日：2020-11-13

Applicant: GOSANTECH CO., LTD.

Inventor： Sung-Hee Lee ,  Ji-Hee Boo ,  So-hyeon Park

IPC: B41J2/175

Abstract: Proposed is an ink storage tank that stores ink to supply the ink to an inkjet head equipped with a plurality of nozzles configured to eject the ink, the tank including an agitator configured to agitate the ink in an ink storage space defined in a housing of the ink storage tank, where the agitator includes a rotary shaft horizontally installed in the ink storage space, one or more blades that protrude outward from the rotary shaft, and a rotation drive unit configured to rotate the rotary shaft, and where the bottom surface of the ink storage space has a concavely curved shape corresponding to the trace of the outer edges of the rotating blades. The ink storage tank has an effect of maintaining desired dispersibility of particles in ink due to the agitator having the horizontal rotary shaft and the concavely curved bottom surface of the ink storage space.