| 摘要 |
An ink jet device (100) includes: an ink jet head (1) having a nozzle opening for ejecting ink; a capping element (2) removably fitted on the ink jet head (1) so as to cover a surface defining the nozzle opening; a filter chamber (5) for passing ink fed thereto from an ink tank (9) to the ink jet head (1) through a filter; a first negative pressure generator (7) connected to the capping element (2) for providing a negative pressure inside the capping element (2) in a position fitted on the ink jet head (1) to discharge air present inside the capping element (2); and a second negative pressure generator (8) connected to an exhaust port (55) for providing a negative pressure inside the filter chamber (5) to discharge air present inside the filter chamber (5) from the exhaust port (55). The second negative pressure generator (8) provides the negative pressure inside the filter chamber (5) while the first negative pressure generator (7) is providing the negative pressure inside the capping element (2).
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