US Patent 7303254 Print assembly for a wide format pagewidth printer

A print assembly (14) for a wide format printer (10) includes a carrier (187) that is mountable on a support structure (12) of the wide format printer (10) in an operative position with respect to a platen (106) of the wide format printer (10). A number of printhead chips (186) are positioned on the carrier (187), the printhead chips (186) together incorporating at least fifty thousand nozzle arrangements (210). The printhead chips (186) are positioned so that the printhead chips (186) are capable of ejecting ink drops into a printing zone (120) defined by the platen (106). Control circuitry (190) is also positioned on the carrier (187) and is configured to control operation of the printhead chips (186).