Abstract: A pagewidth printhead assembly for an inkjet printer, that has an elongate ink distribution member mounted with a series of inlets spaced along the length of the elongate ink distribution member, one or more integrated circuits fixed to the ink distribution member, the or each integrated circuit having nozzles for ejecting ink supplied by the distribution member onto a passing media substrate, and an electrical connector for transmitting data to the or each integrated circuit, the electrical connector having an elongate array of contacts for electrical connection with a corresponding array of contacts on the inkjet printer.

Abstract: A printhead integrated circuit includes one or more nozzle rows extending along a longitudinal axis thereof. The printhead IC has first and second ends for butting engagement with other printhead ICs so as to define a pagewidth printhead. Each nozzle has an associated primary dot position, wherein a first nozzle positioned at the first end is configured to fire some ink droplets skewed towards the first end in addition to firing some ink droplets at its own primary dot position.

Abstract: An inkjet nozzle assembly has a chamber with a nozzle opening for ejecting a liquid, a heater element disposed in the chamber, and a dielectric layer sandwiched between the heater element and a wall of the chamber. The dielectric layer has a thermal product of less than 1495 Jm?2K?1s?1/2. The thermal product is defined as (?Ck)1/2, where ? is the density of the layer, C is specific heat of the layer and k is thermal conductivity of the layer.

Abstract: A printhead having an ink ejection face coated with a hydrophobic polymeric material. The polymeric material is comprised of a polysilsesquioxane, such as poly(methylsilsesquioxane) or poly(phenylsilsesquioxane). The printhead is compatible with various printhead maintenance operations requiring contact with the ink ejection face.