Liquid jet head and liquid jet apparatus

A liquid jet head comprising:

• a nozzle plate having a nozzle line including a plurality of ejection nozzle holes;
• an actuator substrate having channel lines including ejection channels communicated with the ejection nozzle holes;
• a liquid storage unit configured to store residual liquid that attaches to the nozzle plate;
• and
• a pressure adjustment unit configured to adjust pressure so as to bring the liquid supplied into the ejection channels to a negative pressure, wherein
• the channel lines include a dummy channel that is incapable of driving,
• liquid is supplied into the dummy channel while being brought to a negative pressure,
• the nozzle plate includes a dummy nozzle hole communicated with the dummy channel,
• the dummy nozzle hole is placed at a position to aspirate the residual liquid stored in the liquid storage unit, and
• the dummy channel is communicated with the ejection channel such that the liquid is supplied into the dummy channel.