| 摘要 |
PURPOSE:To enable transfer to ordinary paper in an electric field, to make a corona discharge means unnecessary, and to enable polychromatic recording by using developer prepd. by mixing an electrically conductive magnetic carrier with an insulating toner. CONSTITUTION:A developing device is composed of a magnet 6' and a hollow cylindrical member 5' for transferring a toner, and a developer consisting of an insulating toner 14 and an electrically conductive magnetic carrier 13 is used. A recording medium 11 composed of a transparent electrode substrate 1 and a photoconductor 2 is set at the recording position 12. At a part C irradiated with light 9, voltage applied from a power source 10 reach a position close to the developer through the layer 2. The toner 14 is positively charged, and the carrier 13 is negatively charged, yet since the carrier 13 is electrically conductive, positive charges are injected through the member 5' to cancel the negativity of the carrier 13. The toner 14 is made easily separable from the carrier 13, and the part C attracts the toner 14 to stick it. The carrier 13 is attracted by the magnet 6', so it does not stick to the medium 11. |
