Ink-jet printhead and method of manufacturing the same

摘要

A flat ink-jet printhead includes a cavity unit having an array of nozzles and pressure chambers each storing ink and communicating with a corresponding one of the nozzles, and a piezoelectric actuator shaped like a plate. The piezoelectric actuator has active portions each provided for a corresponding one of the pressure chambers and selectively driven to pressurize the ink in the pressure chambers. The piezoelectric actuator is stacked on and bonded to a surface formed with the pressure chambers of the cavity unit. In addition, a straightening member shaped like a frame is bonded to the same surface of the cavity unit to enclose the circumference of the piezoelectric actuator. The straightening member corrects warping of the piezoelectric actuator and the cavity unit when they are bonded using the same thermosetting adhesive.