Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
TONER CARRIER, DEVELOPING DEVICE AND IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JP2012063384
Kind Code:
A
Abstract:

To provide a developing device that can stably form toner cloud for a long period of time with low power consumption and develop an electrostatic latent image by supplying toner to an electrostatic latent image on a photoreceptor surface, a toner carrier mounted in the developing device and an image forming device provided with the developing device.

A toner carrier comprises: a conductive support; an insulation layer; a plurality of electrodes arranged at fixed intervals on the insulation layer; and a surface layer covering the plurality of electrodes. The toner carrier comprises: voltage-applying means for applying a voltage to the electrodes and the conductive support so that an electric field between the plurality of electrodes and the conductive support is periodically inverted. Toner cloud is formed by hopping toner by the electric field between the electrodes, the insulation layer contains a crosslinking reaction product of a fluororesin and a curing agent and the fluororesin is constituted by a copolymer of tetrafluoroethylene and a vinyl monomer.


Inventors:
YAMASHITA YASUYUKI
KITAJIMA RYOICHI
AIDA SHOHEI
Application Number:
JP2010205179A
Publication Date:
March 29, 2012
Filing Date:
September 14, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
RICOH CO LTD
International Classes:
G03G15/08
Domestic Patent References:
JPH04304483A1992-10-27
JP2009042550A2009-02-26
JP2010164932A2010-07-29
Attorney, Agent or Firm:
Hidehiko Takei
Yasuo Yoshimura