US Patent 7648226 Printhead assembly having interconnected printhead modules

A printhead assembly is provided which has a plurality of printhead modules and at least one fluid connector. Each module has printing fluid ejection nozzles supplied with printing fluid from at least one longitudinally extending channel defined in a printing fluid distribution member of the respective module. The distribution members have complementary female and male end portions configured to interconnect the channels of adjacent modules. The fluid connector is connected to the distribution member female or male end portion of at least one of the modules and communicates printing fluid from a fluid supply to the nozzles of all of the modules via the interconnected channels.