Patent ID: 7631959

Claim:
An ink jet head structure, having an ink accommodated therein, and jetting the ink with the operation of an actuator, the ink jet head structure comprising: a first substrate, having a glue inlet and an ink inlet for the ink to be injected into the ink jet head structure; a second substrate, having a glue outlet and an ink outlet for the ink to be jetted out when the actuator operates; a third substrate, sandwiched between the first substrate and the second substrate, wherein a reservoir communicating the ink inlet and the ink outlet is formed between the first, the second and the third substrates and is used to accommodate the ink, a first fluid passage communicating the glue inlet is disposed between the first substrate and the third substrate, and a second fluid passage communicating the first fluid passage and the glue outlet is disposed between the second substrate and the third substrate; and a glue, injected from the glue inlet, filling the first fluid passage and the second fluid passage, and overflowing from the glue outlet, for bonding the first, the second and the third substrates.