| 主权项 |
1. A liquid jet head comprising:
a head portion including
a supply flow path configured to allow liquid supplied from the outside to flow therethrough,a pressure chamber communicating with the supply flow path,a driver element configured to drive the pressure chamber, anda nozzle communicating with the pressure chamber, the head portion being configured to eject liquid droplets through the nozzle; a circuit portion configured to supply a drive waveform to the driver element; a cooling portion including a cooling flow path configured to allow the liquid to flow therethrough, the cooling portion being coupled and fixed to the circuit portion, and the cooling flow path communicating with the supply flow path and the liquid flows through the supply flow path and through the cooling flow path in parallel; and a supply port configured to allow the liquid supplied from the outside to flow in therethrough, and a discharge port configured to discharge the liquid to the outside therethrough, wherein the liquid flowing into the supply port is divided to flow into the supply flow path and the cooling flow path, and the liquid flowing out of the supply flow path and the liquid flowing out of the cooling flow path join together and the joined liquid is discharged to the outside through the discharge port. |
