Powder container including a container body, nozzle receiver, and seal

A powder container to contain powder, comprising:

• a container body including a space to contain powder, the container body extending along a longitudinal direction;
• a nozzle receiver, at one side of the powder container in the longitudinal direction, attached to the container body;
• a gear, at the one side of the powder container, rotatable around a rotational axis extending in the longitudinal direction;
• a cover, at the one side of the powder container, rotatable relative to the nozzle receiver, around the rotational axis;
• and
• a seal, attached to the nozzle receiver at the one side of the powder container, including a hole extending through the seal, the rotational axis passing through the hole, the seal further including an elastic material surface facing outwardly from the powder container,
• wherein:
• the nozzle receiver includes an inner cylindrical surface around the rotational axis, the inner cylindrical surface protruding further away from a center of the powder container along the longitudinal direction than the elastic material surface,
• a tip of the gear is at outer side of the inner cylindrical surface in an orthogonal direction to the longitudinal direction, which is opposite to a side where the seal is disposed, and
• a diameter of the inner cylindrical surface is larger than an outer diameter of the seal.

A powder container to contain powder, comprising:

• a container body including a space to contain powder, the container body extending along a longitudinal direction;
• a nozzle receiver, at one side of the powder container in the longitudinal direction, attached to the container body;
• a gear, at the one side of the powder container, rotatable around a rotational axis extending in the longitudinal direction;
• a cover, at the one side of the powder container, rotatable relative to the nozzle receiver and rotatable around the rotational axis;
• a substrate, at the one side of the powder container, including a contact surface, the nozzle receiver to rotate relative to the substrate;
• and
• a seal, attached to the nozzle receiver at the one side of the powder container, including a hole extending through the seal, the rotational axis passing through the hole, the seal further including an elastic material surface facing outwardly from the powder container,
• wherein:
• the nozzle receiver includes an inner cylindrical surface around the rotational axis, the inner cylindrical surface protruding further away from a center of the powder container along the longitudinal direction than the elastic material surface,
• the seal is disposed inside of the inner cylindrical surface,
• a diameter of the inner cylindrical surface is larger than an outer diameter of the seal,
• the substrate is at an outer side of the inner cylindrical surface in an orthogonal direction to the longitudinal direction, which is opposite to a side where the seal is disposed,
• a tip of the gear is at the outer side of the inner cylindrical surface in the orthogonal direction to the longitudinal direction, which is opposite to the side of where the seal is disposed,
• the cover includes a holder to hold the substrate, and
• the powder container further comprising,
• a shutter to slide along the longitudinal direction and to contact the seal to enclose the powder in the powder container,
• wherein the shutter includes a shaft on the rotational axis.