DEVELOPER ACCOMMODATING CONTAINER, A DEVELOPING DEVICE, A PROCESS CARTRIDGE, AND AN IMAGE FORMING APPARATUS WHOSE DEVELOPER-ACCOMMODATING-CONTAINER OPENING IS SEALED BY A SEAL MEMBER

摘要

A developer accommodating container for accommodating a developer, the developer accommodating container being detachably mountable to a main assembly of an image forming apparatus comprising; a main body for accommodating the developer, having an opening for supplying the developer; an unsealable seal member for sealing the opening; drive transmitting means for transmitting a driving force from a main assembly of the apparatus to apply a force for unsealing the seal member; wherein the drive transmitting means transmits the driving force to a movable member which is movable in contact with the developer after completion of an unsealing operation for the sealing member.