| 摘要 |
PURPOSE:To make it possible to form ink dots with fidelity to recording information, by connecting a high voltage applying first electrode to a recording electrode provided at an ink-ejecting part through a photoconductive insulator, connecting a high voltage applying second electrode to the recording electrode through a fixed resistor, and periodically applying a high voltage to the first and second electrodes. CONSTITUTION:On a substrate 11 for forming a slit form ink-ejecting port which substrate is provided with a high voltage applying first electrode 14, a recording electrode 13 and a photoconductive insulator 16, an upper plate 12 for forming the slit form ink-ejecting port is placed, with a spacer 17 therebetween, and the substrate 11 and the upper plate 12 are firmly adhered to each other to obtain an ink recording head 1. A high voltage applying second electrode 15 is provided on the upper plate 12, and an ink layer 18 formed between the recording electrode 13 and the second electrode 14 is used as a fixed resistor. A voltage is periodically applied to one or both of the first and second electrodes 14, 15. The variation width of the potential of the recording electrode in the ink-ejecting port can be increased, and the gap between the ink-ejecting port and a back electrode is enlarged, whereby ink dots faithful to recording information can be formed. |
