| 摘要 |
PURPOSE:To heighten image density and to improve fine line reproducibility and a highlight gradation by specifying the shapes of a semiconductor part formed on a pressing member and of non-magnetic toner particles. CONSTITUTION:On the pressing member 18 pressing a dielectric sheet, the semiconductor part 19 whose volume resistivity is 10<6>-10<10>OMEGAcm is formed overall a transferring part and the ratio of the content of two or more inorganic oxides A to the specific surface area St of the coloring agent containing resin particles of the non-magnetic toner particles is set as follows: A/St (St=6/dv.rho, and the (dv) means the volume mean particle diameter of the toner mu, and the rhois toner true density g/cm<3>). is in the range between 0.3-2.5. Thus electrification unevenness is prevented and developing toner is exactly transferred. Resultantly, stable transferred images which ranges from such minute dot latent images as dot and digital latent images to solid latent images are obtained. |
