| 摘要 |
PURPOSE:To achieve the improvement in recording speed and picture quality by spcifying the constitution of an ink feeder, recording medium and working electrode. CONSTITUTION:An ink feeder 8 is acted as a counter electrode by providing fine pores 8b for impregnation of ink liquid 11 in surface layer 8a and making the surface layer 8a or ink liquid 11 conductive. A recording medium 6 has fine undulations and fine pores on surface 6a and is formed of a non-conductive material which is given liquid-phobic characteristic to ink liquid through coating and impregnation of modifier. A working electrode 7 is made of the electrode by which required signal potentials are induced distributively. Then, when the information signal corresponding to the recording image is applied from a signal voltage generator 8 to the working electrode 7, recording electric fields are generated between the same and the ink feeder 8 and the ink liquid 11 is attracted electrostatically to the recording medium 6, thus the required ink image is formed at a high density and high speed. |
