Ink-jet head and reservoir unit included in ink-jet head

摘要

An ink-jet head comprises a passage unit and a reservoir unit. The passage unit includes a common ink chamber that extends in one direction. The reservoir unit is fixed to the passage unit, and includes an ink reservoir that stores ink and that extends in the one direction. In the reservoir unit, formed are an introduction passage extending from an ink introduction port to the ink reservoir, and a discharge passage extending from the ink reservoir to ink discharge ports. The introduction passage and the discharge passage include an inflow port and an outflow port, respectively. Both the inflow port and the outflow port face the ink reservoir. The inflow port is disposed such that at least one outflow port can exist on either side of the inflow port with respect to the one direction.