Patent ID: 7073893

Claim:
An inkjet recording head for ejecting ink, comprising: a plurality of sidewalls, which comprise a piezoelectric material, and which form a plurality of ink channels separated by the plurality of sidewalls; a bottom plate, which comprises a piezoelectric material, and which forms a bottom face of the plurality of ink channels; and a plurality of electrodes formed on the plurality of side walls, to which an electric voltage is applied to cause a pressure change in the plurality of ink channels by shear deformation of the plurality of sidewalls, so as to eject the ink in the plurality of ink channels; wherein all of the plurality of ink channels are divided into at least two groups of ink channels, and each said group of ink channels comprises ink channels having at least one of the plurality of ink channels not in the group sandwiched therebetween; and wherein an ink ejection operation is performed successively in a time-sharing mode for each of the groups of ink channels, while satisfying conditions: | CTC+CTE|â‰¦ 10 (%) and |CTE|â‰§ 5 (%) where CTC is a crosstalk between ink channels in one group of ink channels due to a compliance ratio of the plurality of sidewalls to the ink in the plurality of ink channels, and CTE is a crosstalk between ink channels in one group of ink channels due to a leak of an electric field caused by the electric voltage applied to the plurality of electrodes is CTE, and wherein CTC and CTE have a canceling effect on each other.