| 摘要 |
A liquid jetting apparatus includes a liquid jetting head; a liquid supply channel which supplies the liquid to the liquid jetting head; an air discharge mechanism which discharges air existing in the liquid, the air discharge mechanism including an air storage portion, an air discharge passage, a valve, and a flexible member. When a negative pressure is generated in the air discharge passage, the flexible member is deformed to open the valve, and to discharge the air inside the air storage portion via the air discharge passage. Accordingly, the size of the apparatus can be made small while making it possible to discharge the air accumulated in the head unit.
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