This disclosure is directed to, in part, determining an expiration of a password or other security data based on a measured complexity of the password or the security data. A first liquid level position for a driving period and a second liquid level position for a storage period which are different from each other are set in each of a plurality of liquid flow passages including each of the plurality of nozzles and each of the plurality of supply passages corresponding thereto. A T-shaped clamp secures the adaptor to the conduit.