| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a supply channel shut-off device and a supply channel shut-off control method which can suppress pressure fluctuation of an ink jet head.SOLUTION: An ink jet record device 1A is configured so that an electromagnetic valve 4 is disposed on an ink supply tube connecting a pressure adjustment mechanism 3 and an ink jet head 5, and during acceleration and deceleration of the ink jet head 5 in reciprocating motion, the ink supply tube is closed by the electromagnetic valve 4, and when the ink jet head 5 is in an ink discharge state, the ink supply tube is opened.</p> |
