To obtain a developing device in which uniform and high-quality images having stable and proper charges can be obtd. without an irregularity or generation of a ghost image.
In this developing device, a developer 4 is carried on a developer carrying body 8, and while a thin layer of the developer 4 is formed on the developer carrying body 8, the developer is transferred to a developing zone to develop a latent image on a latent image holding body 1 to visualize the image. In this method, (1) the toner contains a binder resin, a coloring agent and a wax. The binder resin contains a vinyl resin, a polyester resin and a hybrid resin component having a vinyl polymer unit and a polyester unit, and it contains a specified amt. of a component having a compsn. and mol.wt. which can be selectively dissolved in specified plural solvents. (2) The developer carrying body consists of a base body 6 and a resin coating layer 7 containing a binder resin and electrically conductive fine powder formed on the surface of the base body. The binder resin contains a copolymer having a methyl methacrylate monomer unit and a nitrogen-contg. vinyl monomer unit.
GOSEKI YASUHIDE
SHIMAMURA MASAYOSHI
OTAKE SATOSHI
MATSUNAGA SATOSHI
MIZOO YUICHI
MICHIGAMI TADASHI
SHIBAYAMA YASUKO
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