| 摘要 |
A liquid jet unit is provided with a circulation path through which liquid is circulated, a liquid jet head which includes an inflow port, an outflow port and a flow path between the inflow port and the outflow port, the flow path constituting a part of the circulation path, and ejects liquid from a nozzle communicating with the flow path, a liquid pump which circulates liquid in the circulation path, a supply path which supplies liquid to the circulation path, and a pressure sensor which generates pressure information according to the pressure of liquid in the circulation path. The liquid pump changes the amount of liquid to be fed on the basis of the pressure information to maintain liquid in the nozzle at a predetermined pressure and draw liquid into the circulation path from the supply path. |
