Mounting of printhead in support member of six color inkjet modular printhead

A printhead for pagewidth ink jet printer, the printhead comprising

• an elongate receiving member having opposed walls interconnected by a bridging portion to define a receptacle and a number of locating formations;
• and
• a plurality of printhead modules arranged in end-to-end relationship in the receptacle, each printhead module defining complementary locating formations and being received in the receptacle so that the locating formations engage each other, with each module extending along a longitudinal axis of the receiving member, the locating formations of the receiving member and the printhead module being configured so that expansion of each printhead module relative to the receiving member along the longitudinal axis is accommodated, each printhead module defining a channel in which a printhead chip is receivable, each channel being angled with respect to its associated module so that the printhead chips of adjacent modules overlap,
• wherein each printhead module has a set of locating formations and wherein the receiving member has a complementary set of locating formations at a location for each module in the receptacle,
• wherein the locating formations of the receiving member are a pair of longitudinally spaced engaging members arranged on one wall of the receiving member and a securing member arranged on an opposed wall of the receiving member, and
• wherein the locating formations of each module are a pair of longitudinally spaced recesses defined along one side of each module, the engaging members of the receiving member being received in respective recesses and a locating recess defined in an opposed side of each module for engaging the securing member, the longitudinally spaced recesses and the engaging members being configured to accommodate longitudinal expansion of the module relative to the channel member.