Inkjet printhead device having an array of inkjet nozzles arranged according to a heirarchical pattern

摘要

An inkjet printhead device includes a substrate that defines a plurality of ink passages. Drive circuitry is positioned on the substrate. An array of inkjet nozzles is arranged on the substrate. Each inkjet nozzle includes a nozzle chamber structure that defines a nozzle chamber in fluid communication with a respective ink passage and an ink ejection port in fluid communication with the nozzle chamber. An elongate actuator extends from the nozzle chamber structure to be anchored to the substrate at one end. The array is arranged on the substrate according to a pattern that is defined by a replication hierarchy in which a first stage rotates an inkjet nozzle by an acute angle, a second stage replicates the inkjet nozzle without rotation a predetermined number of times and a third stage replicates the nozzles of the second stage a predetermined number of times with a rotation of substantially 180 degrees.