MULTIPLE DROP WEIGHT PRINTHEAD AND METHODS OF FABRICATION AND USE

摘要

A printhead (120) includes a chamber layer (140) and at least two orifice layers (142,144). A first orifice layer (142) is disposed on the chamber layer (140), and a second orifice layer (144) is disposed on the first orifice layer (142). The second orifice layer (144) has at least one counterbore (146) formed therein. A first nozzle (126) is formed through both orifice layers (142,144) and produces droplets of a first drop weight. A second nozzle is formed through the first orifice layer (142), coincident with the counterbore (146), and produces droplets of a second drop weight that is different than the first drop weight. In one embodiment, the printhead (120) is used in a stand-alone fluid-dispensing device (100).