| 摘要 |
PURPOSE:To enable a high-speed recording action, by a method wherein one insulating substrate is inclinedly disposed close to the other towards the tip ends thereof, and a gap of an ink holding part connecting to an ink discharge part is made larger in dimension than a gap on the side of the ink discharge part. CONSTITUTION:When a drive pulse according to image information is applied to a heating resistor 15 of a thermal energy applying means 4, an ink 3 is subjected to a thermal energy to be heated. Then, viscosity and surface tension are reduced and conductivity is enhanced. On the other hand, with the application of an electrostatic control pulse to an electrostatic inducing electrode 21, an electrostatic field is formed between the electrode 21 and the surface of the ink 3, whereby the ink 3 jets towards a recording sheet 5 to form an ink dot. At this time, a pair of insulating substrates 7, 8 are disposed opposedly and inclinedly close to each other towards the tip ends thereof, and in a slit- form space 1, a gap of an ink holding part 12 connecting to an ink discharge part 11 is made larger in dimension than a gap on the side of the ink discharge part 11. In this manner, the resistance in a flow path can be reduced. Thus, the ink 3 is stably supplied, and recording action can be speeded up. |
