Patent ID: 7416275

Claim:
A printhead integrated circuit, suitable for a pagewidth color printhead assembly, said printhead integrated circuit comprising a substrate defining a plurality of ink supply channels; and a plurality of ink-ejecting nozzles arranged on the substrate in fluid communication with the ink supply channels, the nozzles being arranged in groups, with each group of nozzles being in fluid communication with a respective ink supply channel and the groups of nozzles being arranged in at least three rows, each row of nozzles receiving ink of the same color; wherein the nozzles of each group are arranged along two rows so that the nozzles of a group generate two adjacent lines of print and wherein each row has a width, and wherein pivoted actuator arms of adjacent nozzles of neighbouring groups are nested together on the substrate so that said two rows are laterally and longitudinally offset with a nozzle of a first row is interposed both laterally and longitudinally between adjacent nozzles of a second row adjacent to the first row.