| 摘要 |
PURPOSE:To make possible recording of high densities at a high speed as the resistance of toner layer becomes low at the charging and the resistance becomes high after the charging by applying picture signal voltages at the boundary part of the compressing region and releasing region of the toner layer. CONSTITUTION:A recording head 20 which plays the action of a compressing plate constitutes a multi-stylus head 22 on the surface of an insulation type support plate 21 and in a recordig region 9 the spacing is limited by the head 20 and sleeve 6. In a compressing region 31, the toner layer 4' is compressed and therefore the resistance value is small. In a release region 32, the compression is released and the end 33 of the multi-stylus head 22 positions at the boundary part of both regions 31, 32. When picture signal voltages 7 are applied while subsequently switching the electrodes 22, the toner 4 of the position 34 opposing as the charges of the polarity opposite from that of the applied voltages are injected from the face of the sleeve 6. Thereby, recording of high speed and yet high densities may be obtained. |
