Title:
DEVELOPING DEVICE FOR IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JP3731981
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To perform good stable developing by keeping the electrifying condition of developer and the concentration condition of toner in the developer in the case of developing.
SOLUTION: A developing roller 4 rotated and driven is provided on a developer tank 3 for receiving the developer, the developer is magnetically attracted by the magnetic force of a magnet 4b inside a developing sleeve 4a constituting the roller 4, carried to a developing area opposed to a photoreceptor 1, and recovered to the tank 3 after developing. The magnet 4b is constituted of the odd numbered poles of a developing pole N1, a carrying pole S1, a magnetic force distribution adjusting pole N2, a developer drawing up pole S2, a developer peeling pole S3, a recovery auxiliary pole N3, and a recovery pole S4; and the number of magnetic poles from the poles S2 to N1 is set to an even number, and that from the poles N1 to the S3 is set to the even number.
Inventors:
Yasuyuki Ishiguro
Yoshiaki Sanada
High Toshihiko Tani
Norio Kimura
Kaneshige Masatoshi
Shuhei Yamamoto
Yoshiaki Sanada
High Toshihiko Tani
Norio Kimura
Kaneshige Masatoshi
Shuhei Yamamoto
Application Number:
JP22899597A
Publication Date:
January 05, 2006
Filing Date:
August 26, 1997
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G03G15/09; G03G15/08; (IPC1-7): G03G15/09; G03G15/08
Domestic Patent References:
| JP922191A | ||||
| JP895384A | ||||
| JP8278695A |
Attorney, Agent or Firm:
Keiichiro Saikyo
Takaya Koike
Masaharu Kinoshita
Takaya Koike
Masaharu Kinoshita
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