| 摘要 |
PURPOSE:To obtain a liquid jet recording head capable of performing gradation recording with always stable emitting capacity, by laminating a plurality of electrothermal converters. CONSTITUTION:In a liquid jet recording head having an electrothermal converter equipped with emitting orifices for emitting a recording liquid, the liquid passages communicating with said emitting orifices, a heat generating resistor layer and at least a pair of electrodes electrically connected to said heat generating resistance layer, a plurality of electrothermal converters are laminated. By laminating a plurality of electrothermal converters on a substrate, the distance between the emitting orifice and the indivisual electrothermal converter is held equally. Even if a heat acting surface changes by the selection or combination of the electrothermal converters, the resistance of a fluid at the time of the emission of a liquid droplet does not change and, therefore, stable emitting capacity is held to make it possible to perform gradation recording. Further, without allowing a plurality of the electrothermal converters to occupy a wide place, said electrothermal converters can be easily received in one nozzle. |
