End member, developer-containing portion, and process cartridge

A developer-containing portion provided in a process cartridge, the process cartridge comprising an electrophotographic photosensitive member, a developing member configured and positioned to develop a latent image formed on the electrophotographic photosensitive member, a developer-containing portion configured and positioned to contain a developer to be used for development with the developing member, a developer-passing opening through which the developer contained in the developer-containing portion passes when the developer is fed to the developing member, and a seal member configured and positioned to unsealably seal the developer-passing opening,

• said developer-containing portion comprising a separable grip member, said developer-containing portion and said grip member being formed integrally with each other to be separable from each other,
• said separable grip member being configured to be gripped when the seal member is removed,
• said grip member comprising a projection provided on one side of said grip member and configured to receive an operator's finger to draw said grip member,
• said grip member being connected with one end portion of the seal member in a lengthwise direction thereof and being provided with a through hole,
• the seal member being passed through said through hole, and
• the one side of said grip member on which said projection is provided being heat fixed to the one end portion of the seal member in the lengthwise direction thereof.

A process cartridge detachably mountable on a main body of an electrophotographic image forming apparatus, said process cartridge comprising:

• an electrophotographic photosensitive member;
• a developing member configured and positioned to develop a latent image formed on said electrophotographic photosensitive member;
• a developer-containing portion configured and positioned to contain a developer to be used for development with said developing member;
• a developer-passing opening through which the developer contained in said developer-containing portion passes when the developer is fed to said developing member;
• a seal member configured and positioned to unsealably seal said developer-passing opening;
• and
• an end member provided with a separable grip member configured to be gripped when said seal member is removed and having a through hole therein,
• said end member and said grip member being formed integrally with each other to be separable from each other,
• said grip member comprising a projection on one side of said grip member and configured to receive an operator's finger to draw said grip member,
• said grip member being connected with one end portion of said seal member in a lengthwise direction thereof,
• wherein said seal member is passed through the through hole formed in said grip member, and
• the one end portion of said seal member in the lengthwise direction thereof being heat fixed on the one side of said grip member on which said projection is provided.