| 摘要 |
PURPOSE:To obtain a superior dichromatic copy by forming the 1st photoconductive layer based on amorphous Se contg. Te, the 2nd photoconductive layer based on the eutectic complex of pyrylium dye and an electrically insulating polymer and a low molecular org. electronic material and a specified middle layer. CONSTITUTION:The 1st photoconductive layer 12 made of amorphous Se alloy contg. 4-10wt% Te is formed on electrically conductive substrate 11, and on layer 12 middle layer 13 composed of at least one of methylene blue, victoria pure blue and copper phthalocyanine and a binder is formed by a coating method, the vapor deposition of the compound or other method. Layer 13 is then covered with the 2nd photoconductive layer 14 based on the eutectic complex of pyrylium dye and an electrically insulating polymer such as polycarbonate and a low molecular org. electronic material such as an electron donor or an electron receptor. Thus, dichromatic electrophotographic receptor 1 is manufactured. By forming layer 13, higher two color separating potential is obtd. without damaging the white color sensitivities of layers 12, 14, and a fine copy is given. |
