| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an ink supply device, an ink supply method and an inkjet recorder, for keeping the dissolved oxygen content constant to be supplied to an inkjet head.SOLUTION: The problem is solved by the ink supply device having first deaeration means provided in a circulation flow passage comprising an ink tank and the inkjet head and deaerating ink flowing in the circulation flow passage, a main tank for storing the ink to be replenished in the circulation flow passage, a replenishing flow passage for communicating the main tank and the circulation flow passage, a replenishing pump provided in the replenishing flow passage and making the ink flow to the replenishing flow passage, second deaeration means provided in the replenishing flow passage and deaerating the ink flowing in the replenishing flow passage, replenishing means for replenishing the ink stored in the main tank to the circulation flow passage by the replenishing pump and recovery means for recovering the ink up to the circulation flow passage from at least the second deaeration means of the replenishing flow passage toward the main tank by the replenishing pump, that is, the recovery means for recovering the ink when a first time passes after the replenishing means replenishes the ink.</p> |
