Patent ID: 8070266
Filing Date: 2011-12-06
Classification: B41J

Abstract:
1. A printhead assembly for an inkjet printer, the printhead assembly comprising: a printhead integrated circuit formed on a wafer substrate, the printhead integrated circuit having an array of ink ejection nozzles, the array having a first section with nozzles for ejecting ink of a first color, and a second section with nozzles for ejecting ink of a second color; an integrated circuit support structure for mounting in the printer adjacent a media feed path, the integrated circuit support structure having conduits for supplying the printhead integrated circuit with ink of the first color and the second color; and, a polymer sealing film between the integrated circuit support structure and the printhead integrated circuit for fixing the printhead integrated circuit to the integrated circuit support structure, the polymer sealing having apertures that allow sealed fluid communication between the conduits of the support structure carrying ink of the first color and the nozzles of the first section and sealed fluid communication between the conduits of the support structure carrying ink of the second color and the nozzles of the second section such that there is no fluid communication between the first section of the array and the second section of the array; wherein the printhead integrated circuit has channels for supplying ink to the array of ink ejection nozzles, each of the channels being divided into isolated channel sections by transverse walls, and each of the apertures in the polymer sealing film are positioned at one of the transverse walls such that each of the apertures supplies ink to both the channel sections either side of one of the transverse walls.