Support part, developer container, process cartridge and electrophotographic image forming apparatus

A developer containing container used in an electrophotographic image forming apparatus comprising:

• a. a developer containing portion for containing a developer;
• b. an agitating member for agitating the developer contained in said developer containing portion;
• c. a support part including a support position for supporting one end of said agitating member, a fitting portion fitted into a through hole formed in a frame of said developer containing portion, a detent portion for preventing the support part from disengaging from said through hole, a seal member contacting portion for contacting a seal member for preventing the developer from leaking from between said frame and the support part, and a driving force receiving portion for receiving a driving force for rotating the support part, in a direction intersecting with an axis of the support part, said detent portion is positioned inwardly of an outer peripheral surface of said seal member contacting portion, and the support part being attached to said frame in a condition that said support portion supports one end of said agitating member and said fitting portion is fitted into said through hole;
• and
• d. said seal member.

A process cartridge which can removably be mounted on an electrophotographic image forming apparatus, comprising:

• a. an electrophotographic photosensitive member;
• b. process means for acting on said electrophotographic photosensitive member;
• and
• c. a developer container including a developer containing portion for containing a developer, an agitating member for agitating the developer contained in said developer containing portion, a support part including a support portion for supporting one end of said agitating member, a fitting portion fitted into a through hole formed in a frame of said developer containing portion, a detent portion for preventing the support part from disengaging from said through hole, a seal member contacting portion for contacting with a seal member for preventing developer from leaking from between said frame and the support part, and a driving force receiving portion for receiving a driving force for rotating the support part, in a direction intersecting with an axis of the support part, said detent portion is positioned inwardly of an outer peripheral surface of said seal member contacting portion, and the support part being attached to said frame in a condition that said support portion supports one end of said agitating member and said fitting portion is fitted into said through hole, and
• d. said seal member.

An image forming apparatus onto which a process cartridge is removably mounted for forming an image on a recording medium, comprising:

• a. developer containing container having an electrophotographic photosensitive member, process means for acting on said electrophotographic photosensitive member, a developer container including a developer containing portion for containing a developer, an agitating member for agitating the developer contained in said developer containing portion, a support part including a support portion for supporting one end of said agitating member, a fitting portion fitted into a through hole formed in a frame of said developer containing portion, a detent portion for preventing the support part from disengaging from said through hole, a seal member contacting portion for contacting with a seal member for preventing developer from leaking from between said frame and the support part, and a driving force receiving portion for receiving a driving force for rotating the support part, in a direction intersecting with an axis of the support part, said detent portion is positioned inwardly of an outer peripheral surface of said seal member contacting portion, and the support part being attached to said frame in a condition that said support portion supports one end of said agitating member and said fitting portion is fitted into said through hole, and said seal member;
• and
• b. conveying member for conveying a recording medium.