Patent ID: 6969150
Filing Date: 2005-11-29
Classification: B41J

Abstract:
1. A printhead for a pagewidth ink jet printer, the printhead comprising: an elongate receiving member that defines a receptacle; and at least one elongate printhead module, the at least one printhead module defining a channel in which a printhead chip is receivable, the receiving member and the at least one printhead module, together defining pairs of complementary location formations such that the at least one printhead module is received in the receptacle so that the complementary locating formations engage each other, with the at least one module extending along a longitudinal axis of the receiving member, wherein, for the at least one printhead module, the complementary location formations comprise a first pair of complementary location formations, the first pair comprising a projection and a recess adapted to receive the projection, wherein the recess is extended in the longitudinal direction with respect to the projection and wherein the projection is slidably received within the recess so that expansion of the at least one printhead module relative to the receiving member along the longitudinal axis is accommodated.