Patent ID: 8172389

Claim:
A liquid transporting apparatus which transports a liquid, comprising: a filter which is arranged in a liquid channel through which a liquid flows, comprising: a filter plate in which a plurality of through holes communicating with the liquid channel is formed; and a piezoelectric actuator which vibrates the filter plate, and which has a piezoelectric layer formed on a surface of the filter plate, and an electrode provided on a surface of the piezoelectric layer, a liquid channel in which the filter is arranged; a flow-generator which generates a flow of the liquid in the liquid channel; and a controller which controls an operation of the piezoelectric actuator and the flow-generator, wherein, when the controller controls the piezoelectric actuator to vibrate the filter plate, the controller controls the flow-generator to generate the flow of the liquid in the liquid channel, so that a period during which the piezoelectric actuator vibrates the filter plate is less than a period during which the flow-generator generates the flow of the liquid in the liquid channel.