| 摘要 |
PURPOSE:To surely obtain the sharp images without any transfer disturbance by providing a plurality of squeeze rollers between the developing part and transfer part and applying the bias potential of the polarity opposite from the charging potential of a latent image holding member to the roller of the final stage out of these. CONSTITUTION:Two squeeze rollers 15, 16 are provided by being positioned within a receiving tray 14 between a developing part 8 and transfer part 9. The revolving direction of these rollers 15, 16 is so defined that the moving direction of their surfaces becomes opposite from that of a photoreceptor 7. Also, their spacing from the surface of the photoreceptor 7 is determined by joining the space-setting bearings 17, 18 of a slightly larger diameter provided coaxially revolvably to both sides of the photoreceptor 7. A partition plate 19 is provided between the rollers 15 and 16. A bias electric power source 22 which applies bias potential VB1 is connected to the roller 15 and an electric source 23 which applies vias potential VB2 to the roller 16. Thereby, the sharp images may be obtained without any transfer disturbance. |
