Title:
現像装置及びプロセスカートリッジ及び画像形成装置
Document Type and Number:
Japanese Patent JP4164293
Kind Code:
B2
Abstract:
Disclosed are a developing device, a developing cartridge, a process cartridge, and an image forming apparatus in which image deficiency is prevented by absorbing the tolerance of each component and making the position of the developing roller in the thrust direction constant and which are easy to assemble. A frame member is equipped with an urging unit that axially urges the developing roller, the urging unit urging the developing roller in the direction of movement of the developing roller by the thrust force of a helical gear when a driving force is transmitted to the developing roller, to thereby make the position of the developing roller in the thrust direction constant.
Inventors:
Susumu Shintani
Yokomori Miki
Masatomo Tsuzuki
Yokomori Miki
Masatomo Tsuzuki
Application Number:
JP2002161808A
Publication Date:
October 15, 2008
Filing Date:
June 03, 2002
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G15/08; G03G21/18
Domestic Patent References:
| JP8129306A | ||||
| JP6109082A | ||||
| JP9043992A | ||||
| JP2001356553A | ||||
| JP10123915A | ||||
| JP2000075641A | ||||
| JP1020743A | ||||
| JP7295387A | ||||
| JP2001312198A |
Attorney, Agent or Firm:
Kazunobu Sera
Yoshiyuki Kawaguchi
Mayuko Wakuda
Koichiro Sakai
Takeshi Nakamura
Takeshi Niwa
Yoshiyuki Kawaguchi
Mayuko Wakuda
Koichiro Sakai
Takeshi Nakamura
Takeshi Niwa