A developer container includes an accommodating portion accommodating developer and is provided with an opening, a shutter member for opening and closing the opening, a projection for moving the shutter member, and a guiding portion for guiding the projection. When the projection is pushed in a pushing direction, the projection is moved in a direction different from the pushing direction by being guided by the guiding portion in contact with the guiding portion and thereafter is moved in the pushing direction, thereby to move the shutter member to open the opening.
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