| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink feeding device of a good deaerating efficiency by preventing a defective discharge of ink at a head section from occurring. SOLUTION: This ink feeding device 100 is equipped with a main tank 10 in which an ink is stored, an ink feeding tube 20 which carries the ink, a subsidiary tank 30 which temporarily holds the ink, an ink jet head 40 which jets the ink, a deaerating device 50 which deaerates a gas in the ink, a channel switching valve 60 which switches the flowing direction of the ink, a pump 70 which feeds out the ink, and an opening/closing valve 80 which regulates the going-out/coming-in of the ink and so forth. The ink feeding tube 20 has a first ink feeding tube 21 which carries the ink from the main tank 10 to the subsidiary tank 30, a second ink feeding tube 22 which carries the ink from the subsidiary tank 30 to the ink jet head 40, and a third ink feeding tube 23 and so forth. Third ink feeding tube 23 returns the ink on the downstream side from the subsidiary tank 30 to this side of the deaerating device 50 which is provided on the first ink feeding tube 21. COPYRIGHT: (C)2005,JPO&NCIPI |
