| 摘要 |
A liquid discharge head unit comprises a base plate having the installation reference used as positioning reference for the installation thereof on a liquid discharge apparatus main body; a frame connected to the base plate, having liquid supply paths formed therein for conducting liquid, and liquid supply ports communicated with the liquid supply paths open to side portion; a chip unit provided with discharge energy generating elements for heating the liquid to be bubbled and discharged, discharge ports for discharging the liquid, and liquid receiving ports for receiving the liquid into the interior thereof, and connected to the frame in a state of abutting against the side portion of the frame so as to enable the liquid supply ports and the liquid receiving ports to be communicated; and a front cap having opening portion to enable the discharge ports to be exposed to the outside, being arranged to cover the chip unit and the frame by covering at least the surface having the discharge ports open thereto, and connected to the chip unit and the frame. With the structure thus arranged, the position of the discharge ports can be arranged in high precision with respect to the liquid discharge apparatus main body to make it possible to structure a liquid discharge head unit capable of executing highly precise liquid discharges.
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