Title:
現像ローラ及びその製造方法
Document Type and Number:
Japanese Patent JP4671709
Kind Code:
B2
Abstract:
A developing roller 20 included in a developing device 1 and a photoconductor drum 100 are located adjacently to or in contact with each other. A toner absorbed on the surface of the developing roller 20 moves to the photoconductor drum 100 by an electrostatic force, whereby an electrostatic latent image is formed. The developing roller 20 has on the surface thereof a developing sleeve 30 . On the surface of a base 31 of the developing sleeve 30 , an electroless nickel plating layer 32 is formed. Further, on the surface of the nickel plating layer 32 , a nickel oxide coating 33 is formed. The nickel oxide coating 33 passivates the surface of the developing sleeve 30 to thereby suppress the tendency of the toner charge to dissipate as a result of nickel plating treatment, thus permitting the toner charge holding property to be maintained in a favorable state.
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Inventors:
Masatake Hayashi
Satoshi Uemura
Satoshi Uemura
Application Number:
JP2005050274A
Publication Date:
April 20, 2011
Filing Date:
February 25, 2005
Export Citation:
Assignee:
Kyocera Mita Co., Ltd.
International Classes:
G03G15/08
Domestic Patent References:
| JP2001125370A | ||||
| JP2003045531A | ||||
| JP61023790A |
Attorney, Agent or Firm:
Shizuo Sano