| 摘要 |
<p>To reduce a fluctuation in pressure of ink supplied in an ink-j et head due to vibration of an ink tank through movement of a carriage, and to prevent density unevenness due to the pressure fluctuation from being caused in printing, the present invention provides a pressure buffer which is provided in an ink supply path connecting an ink-jet head to an ink supply portion for supplying ink to the ink-jet head, an opening portion is provided in a chamber of the pressure buffer, and the opening portion communicates with an ink flow path provided along a side wall of the chamber and is connected to an ink flow outlet provided in a position lower than the opening portion. In the ink flow path in the vicinity of the ink flow outlet, a hole which communicates with the chamber is provided.
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