| 摘要 |
An ink jet printer includes a carriage movable on a body frame, including at least one printing head; an ink tank that stores the ink; and an ink path that supplies the ink from the ink tank to the printing head. The carriage has a bubble collecting chamber that collects bubbles produced in the ink path, a discharge path which is communicated with the bubble collecting chamber, and an opening and closing valve which is arranged in the discharge path and is normally closed. The body frame has a member for opening and closing the opening and closing valve, a discharge cap which can be brought into tight contact with the carriage to close an outlet of the discharge path so that an airtight space communicated with the outlet is defined between the discharge cap and the carriage, and a suction member that sucks air from the airtight space.
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