Powder storage device and image-forming apparatus equipped with the same

A powder storage device comprising:

• a container housing into which a powder container is installed, the powder container containing powder inside and having a supply port sealed by a sealer;
• and a powder storage to which the powder is supplied through the supply port,
• wherein the sealer has a closing seal that seals the supply port in the powder container and a male engager provided at one end of the closing seal in a direction along outer circumference thereof, and the container housing rotatably supports the powder container around a rotation axis and detachably supports the powder container from an installing position where the powder container is installed to an installing direction along a direction of the rotation axis,
• the container housing is provided with a female engager to engage with the male engager in the sealer with the powder container being at the installing position, and a receiving port to receive the powder stored in the powder container, and
• when the powder container rotates around the rotation axis from the installing position to a predetermined position in a peeling-off rotation direction, the supply port moves to a position corresponding to the receiving port and a bonder of the sealer that is adhered to the powder container is peeled off, and thus the supply port and the receiving port are interconnected.