Ink supply unit for an ink jet printer

An ink supply unit for supplying ink to a printhead in a printer, the supply unit comprising:

• an elongate housing defining a longitudinally extending channel;
• an ink flow baffle member configured to be received in the channel, the housing and the baffle member defining a plurality of ink chambers which can each contain a respective type of ink, the ink flow baffle member including a series of slats of alternating height fixed between two end wall portions, the series of slats provided within each of the plurality of ink chambers and the baffle member being configured to inhibit excessive movement of ink in each chamber;
• and
• an elongate manifold defining a plurality of sets of ink passages and engageable with a flow regulator so that ink from each ink chamber can be provided to a respective set of ink passages, the manifold further defining a recess in which an ink ejecting printhead can be received and each ink passage tapering to define a respective outlet located within the recess which can be engaged in fluid communication with the printhead.