| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an ink jet recording device for removing foams and dissolved gas in ink which generate non-jetting of ink or unstabilized jetting without wasting ink and not transferring the foams and dissolved gas in ink into an ink jet head, and also provide a color filter manufacturing device in which the ink jet recording device is used. SOLUTION: Ink in a main tank 301a is fed into a sub-tank 401a by a main pump 302. The ink in the tank 401a is passed through a tube 451, a flowmeter 456, a main deaeration device 511a, a dissolved oxygen meter 520 and the like and fed into sections of three-way valves 502, 504 and 505. The ink fed therein is further fed in the direction of an ink jet head 120a at the time of jetting the ink by the operation of the three-way valves 502, 504 and 505, and returned to the sub-tank 401a through tubes 452, 453 and 454 when the dissolved oxygen amount in the ink is too much.</p> |
