An inkjet printer includes a recording head having nozzles to discharge ink and a storage chamber for storing the ink which is supplied to the nozzles from an ink source. The chamber includes an inlet to which the ink flows from the ink source and an outlet from which the ink flows out to the nozzles, two walls opposite to each other and parallel to a flow direction of the ink flowing to the outlet from the inlet, and an annular rim formed along edges of the two walls. The chamber includes a pair of ribs for adjusting an ink flow, which are provided in one of the walls, protrude from the one towards the other, and extend parallel to the flow direction apart from the other. The other wall has flexibility and the ribs are spaced from the rim inside the rim.