Title:
DEVELOPING DEVICE AND IMAGE FORMING METHOD
Document Type and Number:
Japanese Patent JP3869968
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: 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.
SOLUTION: 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.
Inventors:
Kenji Fujishima
Yasuhide Goseki
Masayoshi Shimamura
Satoshi Otake
Satoshi Matsunaga
Yuichi Mizoo
Tadashi Michigami
N. Shibayama
Yasuhide Goseki
Masayoshi Shimamura
Satoshi Otake
Satoshi Matsunaga
Yuichi Mizoo
Tadashi Michigami
N. Shibayama
Application Number:
JP4074099A
Publication Date:
January 17, 2007
Filing Date:
February 19, 1999
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G9/087; G03G9/08; G03G9/09; G03G9/097; G03G13/08; G03G15/06; G03G15/08; (IPC1-7): G03G9/087; G03G9/097; G03G9/09; G03G9/08; G03G13/08; G03G15/06; G03G15/08
Domestic Patent References:
JP11038678A | ||||
JP2000056511A | ||||
JP5006030A | ||||
JP60104956A | ||||
JP5281785A | ||||
JP10063035A |
Foreign References:
EP0869404A1 |
Attorney, Agent or Firm:
Keisuke Watanabe
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