(19)
(11) EP 0 138 376 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.07.1985 Bulletin 1985/29

(43) Date of publication A2:
24.04.1985 Bulletin 1985/17

(21) Application number: 84306194

(22) Date of filing: 11.09.1984
(84) Designated Contracting States:
DE FR GB

(30) Priority: 19.09.1983 JP 17256983
19.09.1983 JP 17257083
19.09.1983 JP 17257183
19.09.1983 JP 17257283

(71) Applicant: KABUSHIKI KAISHA TOSHIBA
 ()

(72) Inventors:
  • Saito, Tutomu c/o Patent Division, K.K. Toshiba
     ()
  • Yoneda, Hitoshi c/o Patent Division, K.K. Toshiba
     ()
  • Ohno, Tadayoshi c/o Patent Division, K.K. Toshiba
     ()

   


(54) Method and apparatus of electrophotography


(57) According to image-forming processes of a method and apparatus of electrophotography used for a printer or a copying machine, a toner (22) having no photoconductivity is applied on a surface of a photoconductive layer (13) of a photoreceptor (10) consisting of a transparent conductive layer (12) and the photoconductive layer (13) which are sequentially formed on a transparent substrate (11). The photoconductive layer (13) is exposed from a side of the transparent substrate (11). Toner particles on an exposed region of the photoconductive layer (13) are transferred to tonerre- ceiving paper (26) opposite the photoconductive layer (13) so as to form a toner image. A process for developing a latent image can be omitted. In addition, a special toner such as a photoconductive toner having low sensitivity is not used, thereby forming a high-quality image. The apparatus of electrophotography becomes simple and compact.






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