| 摘要 |
I provide an improved method of transferring a developed latent electrostatic image from the surface of a photoconductor to a carrier sheet adapted to receive the developed image, apparatus for carrying out the method, an improved carrier sheet for use in the method, a method of making the carrier sheet, and apparatus for forming the carrier sheet. The method comprises providing spacing means between the surface of the photoconductor and the carrier sheet adapted to receive the image, which spacing means extend from the surface of the carrier sheet a distance less than seventy microns and more than the depth of the developed image on the photoconductor. The gap prevents squeezing and deforming of the image and, when a liquid developer is used, prevents the carrier sheet from becoming unduly moistened except by liquid entrained in the charged toner particles forming the developed image. Transfer is accomplished by impressing a charge on the back of the carrier sheet of a polarity opposite to that of the charged toner particles. The spacing means may be formed integrally with the carrier sheet or by depositing them on the carrier sheet so as to be interposed between the photoconductor and the carrier sheet which is to bear the image. |
