Patent ID: 6811248
Filing Date: 2004-11-02
Classification: B41J

Abstract:
An ink jet head for a color printer, comprising:a pressure chamber block having therein a plurality of pressure chambers each containing an ink; and a plurality of actuator blocks, each of the actuator blocks having a plurality of actuator, each of the actuators having a piezoelectric element, and a first electrode and a second electrode for applying a voltage across the piezoelectric element, each of the actuators covering one of the pressure chambers, wherein; the actuator blocks and the pressure chamber block are layered on each other; the pressure chamber block is a single block and not an integrated block with respect to a scanning direction; an area of a layering surface of each of the actuator blocks is smaller than an area of a layering surface of the pressure chamber block; and the plurality of actuator blocks are arranged on one surface of the pressure chamber block.