Patent ID: 8087752

Claim:
A printhead assembly comprising: a printhead module mounted on a receiving surface of a mounting structure, the printhead module including a first edge and a second edge opposite the first edge where the first and second edges extend beyond edges of the receiving surface by a first distance in a first direction and the first and second edges are positioned between featured edges of the mounting structure in a second direction that is substantially perpendicular to the first direction; and the mounting structure comprising: the receiving surface for mounting the printhead module; the featured edges positioned on either side of the receiving surface in the second direction, where each featured edge includes: a first feature protruding from the featured edge by a second distance in the first direction where the second distance is greater than the first distance such that the first features extend beyond the first and second edges of the printhead module; and a second feature recessed from the featured edge and configured to receive a first feature of a neighboring mounting structure; wherein the first direction and the second direction are parallel to a face of the printhead module that includes an array of nozzles.