Patent ID: 7284829

Claim:
An inkjet printhead of top-shooter design, comprising: a first substrate, composed of a first surface and a second surface, having at least a nozzle formed thereon; a second substrate, composed of a first surface and a second surface; wherein the first substrate is connected to the second substrate and the first surface of the second substrate is disposed facing toward the second surface of the first substrate, and the first surface of the second substrate has at least two grooves formed thereon, and the bottom of one of the grooves is a main actuator while the bottom of another groove is an auxiliary actuator, wherein the main actuator is an actuator selected from a group consisting of an electrostatic actuator and a piezoelectric actuator, the auxiliary actuator is an actuator selected from a group consisting of an electrostatic actuator and a piezoelectric actuator, the main actuator and the auxiliary actuator are different.