Inkjet printhead having substrate feedthroughs for accommodating conductors

摘要

An inkjet printhead for printing an image on a printing medium is provided that includes a substrate (42) having an interior and a nozzle face (43), a plurality of nozzles (45) having outlets in the nozzle face, an electronically-operated droplet deflector or heater (50) disposed adjacent to each of the nozzle outlets, and feedthroughs (90) for connecting power and image data to the droplet deflector and heater control circuits through the substrate interior. The feedthroughs include bores (92) disposed through the substrate for accommodating conductors connected to the droplet deflectors and/or power and image data control circuits of the printer. The feedthroughs may take the form of bores either coated (96) or filled (98) with electrically-conductive material. The use of feedthroughs through the printhead substrate avoids the manufacture of an undesirably high density of connectors and conductors on the nozzle face and facilitates the manufacture of smooth and flat nozzle faces which are easily cleaned during the printing operation by wiping mechanisms. <IMAGE>