Patent ID: 8867955

Claim:
A developer accommodating unit for accommodating a developer, said developer accommodating unit comprising: a flexible developer accommodating container that accommodates the developer and is sealed with a sealing member at its opening for permitting discharge of the developer; a rotatable unsealing member for removing said sealing member from said opening; a drive transmission member for transmitting a rotational force to said unsealing member, wherein said drive transmission member is mounted at one of longitudinal end portions of said unsealing member and is rotatably assembled with a frame; and a supporting member for supporting said unsealing member when said unsealing member is assembled, wherein said supporting member includes a preventing portion for preventing said unsealing member from dropping from said supporting member in a state before said drive transmission member is assembled with said frame, and wherein, in a state in which said drive transmission member is assembled with said frame, a gap between said unsealing member and said supporting member is larger than a gap between said drive transmission member and said frame, and said unsealing member is spaced from said supporting member.