Printhead assembly with an ink distribution arrangement

A printhead assembly for an ink jet printer, the printhead assembly comprising

• an elongate manifold that defines a plurality of ink passages and is dimensioned to span a print area;
• at least one elongate printhead chip that is mounted on the manifold also to span the print area, the printhead chip having a plurality of ink inlets, each ink inlet being in fluid communication with a respective ink passage of the manifold;
• an elongate baffle unit that is mounted on the manifold so that the manifold is interposed between the at least one printhead chip and the baffle unit;
• an elongate housing that is mounted on the baffle unit, the baffle unit and the housing defining at least one ink storage chamber and at least one respective inlet in fluid communication with the at least one ink storage chamber;
• and
• a data and power supply arrangement that is connected to the at least one printhead chip so that control signals can be transmitted to the at least one printhead chip.