G - Physics – 03 – G
Patent
G - Physics
03
G
314/38
G03G 21/00 (2006.01)
Patent
CA 1120093
ABSTRACT The invention relates to an electrostatic copying apparatus of type in which an electrostatic latent image is developed on the surface of a photosensitive member by applying a fine powdery developer to the electrostatic latent image to form a toner image which is transferred to a receptor sheet after which the remaining electrostatic charge on the photosensitive member is eliminated and the photosensitive member cleaned of excess developer. The cleaning step is carried out, according to the invention, by magnetically holding the same developer as used in the developing step on the surface of a developer-holding member by means of a magnet disposed within the developer- holding member, moving the surface of the developer-holding member in a direc- tion opposite to the moving direction of the surface of the photosenstive member to contact the two surfaces at reasonable relative speeds through the layer of the developer, and thus mechanically brushing the surface of the photosensitive member by the layer of the developer.
371011
Aizawa Tatsuo
Ikeda Toshimitsu
Kozuka Nobuhiko
Matsui Toshikazu
Matsumoto Shoji
Mita Industrial Company Limited
Smart & Biggar
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