| 摘要 |
PURPOSE:To ensure stable discharging performance of ink liquid so as to form an image without irregularity by making at least a part of a common liquid chamber an ink-repellent face, in a device comprising a plurality of ink discharging sections to be connected to the common liquid chamber formed integrally. CONSTITUTION:In an ink jet record head of bubble jet method, ink is heated by a heater 5 so as to generate bubbles in the ink and is discharged. The ink jet record head comprises a heater board 4 having the heater 5, electrodes, protective films formed on a silicone wafer by sputtering and photographic techniques. On the top of it, a nozzle wall and a wall of a liquid chamber are formed by a negative dry film 3, on which a glass roof plate 1 is connected. In this case, before the negative film 3 is connected to the heater board 4, a water-repellent face 6 formed by eutectoid plating of, for example, fluororesin powder and nickel is formed on the heater board 4. Thus, the pressure fluctuation of the ink is absorbed and crosstalk is prevented. |
