Title:
帯電装置および画像形成装置
Document Type and Number:
Japanese Patent JP4266021
Kind Code:
B2
Abstract:
There is provided a charging apparatus having high durability, in which no rusts etc. are generated, and by which a potential of a photoreceptor drum being charged can be controlled stably within an appropriate range for a long period of time owing to hardly impaired controllability of the potential of the photoreceptor drum being charged even with a some amount of contaminants such as toner that may be deposited on, and which is inexpensive as well. A charging apparatus includes a needle electrode, a holding member, two cleaner members, a support member, a moving member, a shield case, and a platy grid. On the surface of the needle electrode is formed a nickel layer containing tungsten.
Inventors:
Toshiaki Ino
Application Number:
JP2005341082A
Publication Date:
May 20, 2009
Filing Date:
November 25, 2005
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G03G15/02; G03G9/08
Domestic Patent References:
| JP2005099670A | ||||
| JP2003022926A | ||||
| JP992440A | ||||
| JP200437951A | ||||
| JP7161452A |
Attorney, Agent or Firm:
Keiichiro Saikyo
Takeshi Sugiyama
Minetarou Hirose
Takeshi Sugiyama
Minetarou Hirose