| 摘要 |
A developer storing container includes a developer storing body having a first opening, and a shutter member capable of taking a closing position and an opening position to close and open the first opening. The shutter member includes a first seal member including a seal portion provided along the first opening and an extending portion extending from the seal portion in the opening direction of the shutter member. A distance from an end portion of the first opening in the opening direction to an end of the extending portion when the shutter member is in the closing position is longer than a distance of an end portion of an exposable portion of the first seal member (exposed via the first opening when the shutter member is in the closing position) when the shutter member moves from the closing position to the opening position.
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