| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid jetting head in which liquid jetting characteristics can be improved by heating different kinds of liquid to a desired temperature, and to provide a liquid jetting head unit and a liquid jetting device. <P>SOLUTION: The liquid jetting head includes a pressure generation chamber communicating with a nozzle opening, a pressure generation means for causing a pressure change in the pressure generation chamber, and a case 4 provided with introduction channels through which liquid is supplied to the pressure generation chamber. The plurality of introduction channels 56 are juxtaposed in the case so that at least two kinds of different liquid can be passed. A heating means 70 is provided on the side face of the case 4 along the juxtaposition direction of the introduction channels 56. In the plurality of introduction channels 56 through which different kinds of liquid pass, the areas facing the heating means 70 of the introduction channels 56b, 56f through which liquids having a specific heat and a viscosity higher than those of a liquid becoming reference of specific heat and viscosity are widened for the introduction channels 56a, 56c, 56d, 56e through which a liquid becoming reference of specific heat and viscosity passes. <P>COPYRIGHT: (C)2012,JPO&INPIT |
