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Title:
CARTRIDGE
Document Type and Number:
Japanese Patent JP2013029818
Kind Code:
A
Abstract:

To prevent leakage of toner due to user's firmly gripping a cartridge, without providing a developer storage part with a rib member.

A central recessed portion 38c provided on an outer wall surface 31c constituting a developing chamber 31D and a flexible developing sheet 18 provided to cover the central recessed portion 38c are disposed so that a user who attaches or detaches a process cartridge 7 to or from a device body 100A can put fingers on the developing sheet 18 when attaching or detaching the process cartridge 7. The central recessed portion 38c and the developing sheet 18 are constituted so that an amount of flexure of the developing sheet 18 is greater than that of a bottom wall of the central recessed portion 38c when the user puts fingers on the developing sheet 18.


Inventors:
CHATANI KAZUO
MORI TOMONORI
GOFUKU SHUICHI
Application Number:
JP2012128948A
Publication Date:
February 07, 2013
Filing Date:
June 06, 2012
Export Citation:
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Assignee:
CANON KK
International Classes:
G03G21/18; G03G15/08
Domestic Patent References:
JP2004287055A2004-10-14
JP2006284818A2006-10-19
JP2000029296A2000-01-28
JP2001075458A2001-03-23
JP2004287055A2004-10-14
Foreign References:
US20080267666A12008-10-30
US20010055494A12001-12-27
US20080267666A12008-10-30
US20010055494A12001-12-27
Attorney, Agent or Firm:
Kazunobu Sera
Yoshiyuki Kawaguchi
Mayuko Wakuda
Koichiro Sakai
Takeshi Nakamura
Takeshi Niwa



 
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