COMPACT INK JET PRINTHEAD

摘要

A compact thermal ink jet printhead including a printhead substrate (11), a plurality of side by side columnar arrays (61) of drop generators (40) forme d in the printhead substrate, and drive circuits (85) formed in the printhead substrate for energizing each ink drop generator. The printhead substrate ha s an ink drop generator packing density of at least 10.43 ink drop generators per square millimeter.