Patent ID: 7384127

Claim:
An inikjet printhead assembly that comprises: an elongate support; and a plurality of printhead modules arranged end-to-end along the support, each printhead module comprising a carrier carrying an elongate printhead configured to eject ink, ends of each carrier each defining one or more complementary formations so that each adjacent pair of carriers is nested together, the printheads being positioned on the carriers to form a pair of parallel rows of spaced apart printheads with one of the rows being longitudinally offset with respect to the other row so that each printhead in the one row overlaps each adjacent printhead in the other row to enable printing without gaps along the support, wherein the one or more complementary formations define corresponding steps at the ends of each carrier, and the support is an arcuate, elongate profile member which is configured so that each carrier can be partly housed by the profile member.