Patent ID: 7537309

Claim:
A pagewidth printhead assembly for an inkjet printer comprising: a body portion for receiving ink from one or more ink sources and having one or more channels formed therein for distributing the ink substantially along the length of the printhead assembly; one or more integrated circuits extending substantially the length of the printhead assembly, the or each integrated circuit being a monolithic semiconductor wafer substrate on which is fabricated a plurality of nozzles formed on one surface and a plurality of delivery channels formed on an opposing surface, each of the nozzles being arranged in use to deliver the ink onto passing print media and each of the delivery channels being arranged to deliver ink to the nozzles, the delivery channels have a plurality of walls provided along the length thereof, said walls dividing said delivery channels into a plurality of sections; an ink distribution member upon which the or each integrated circuit is fixed and which distributes the ink from the body portion to each of the integrated circuits; and an adhesive layer adhering the integrated circuit to the ink distribution member, wherein the ink distribution member is a unitary element having a plurality of conduits formed therethrough, each of the conduits having an inlet which receives ink from one of the channels of the body portion and an outlet, each outlet supplying ink to at least one section of the delivery channels for delivering the ink to a predetermined number of nozzles of the one or more integrated circuits, and the adhesive layer has a plurality of holes aligned with corresponding ones of the outlets and delivery channels so that ink can be supplied therebetween.