Patent ID: 8075100

Claim:
A liquid transporting apparatus which transports a liquid having an electroconductivity, comprising: a common liquid chamber in which the liquid is supplied; a plurality of liquid channels through which the liquid supplied from the common liquid chamber flows, each of the liquid channels including a plurality of individual channels which communicate with the common liquid chamber; a plurality of first electrodes arranged on the liquid channels respectively, each of the first electrodes being provided in common to the individual channels of one of the liquid channels; a plurality of second-electrode groups arranged on the plurality of liquid channels respectively, each of the second-electrode groups including a plurality of second electrodes arranged on the plurality of individual channels of one of the liquid channels, respectively; an insulating layer which covers the second electrodes of each of the second-electrode groups and each of the first electrodes of one of the liquid channels, a wetting angle of the insulating layer with respect to the liquid being decreased to be not more than a critical wetting angle when an electric potential difference between the liquid in the liquid channel and at least one of the first and the second electrodes is not less than a predetermined critical electric potential; and an electric potential applying mechanism which applies an electric potential to the second electrodes of each of the second-electrode groups and each of the first electrodes of one of the liquid channels, wherein a second electrode included in one of the second-electrode groups corresponds to another second electrode included in another second-electrode group to electrically connect with each other.