Patent ID: 8613487

Claim:
A liquid jet head, comprising: a jetting portion having a plurality of nozzles for jetting a liquid that is contained in a liquid container; a liquid storing portion disposed in a conduit that interconnects the liquid storing portion and the jetting portion and that supplies the liquid in the liquid container to the jetting portion through operation of a pump, the liquid storing portion being configured to dampen pressure fluctuations in the conduit; and pressure measuring means disposed in the conduit at a position downstream of the liquid storing portion for measuring pressure in the conduit after the liquid storing portion dampens pressure fluctuations in the conduit, the operation of the pump for supplying the liquid in the liquid container to the jetting portion being controlled based on a value of the pressure measured by the pressure measuring means so that the pressure of the liquid supplied from the conduit to the jetting portion is within a predetermined pressure range.