Patent ID: 7625053
Filing Date: 2009-12-01
Classification: B41J

Abstract:
1. An ink jet recording apparatus, comprising: an ink jet recording head, comprising: actuators each of which forms a side wall isolating the respective pressure chambers and is caused to deflect so as to vary a volume of the pressure chamber according to drive signals; and drive signal generating means for supplying the drive signals driving the pressure chambers to the electrodes relative to the respective pressure chambers, wherein said drive signal generating means generates drive signals for causing one of N serially arranged pressure chambers to eject ink therefrom, and for substantially evenly varying amplitudes of meniscus flow velocities within nozzles communicating with the remainder of the N pressure chambers, by deconcentrating pressure vibrations of ink produced in surrounding pressure chambers, formed next to and on both sides of the pressure chamber to eject ink, toward pressure chambers adjacent to each of the surrounding pressure chambers, with N being four or more.