A nozzle receiver is to be arranged in a powder container used in an image forming apparatus. The nozzle receiver includes a nozzle receiving opening, in which a conveying nozzle for conveying powder supplied from the powder container is inserted in the image forming apparatus; an opening/closing member to open and to close the nozzle receiving opening; and a supporter to support the opening/closing member. The opening/closing member includes a sealing portion to seal the nozzle insertion opening. The supporter includes an end surface portion perpendicular to a moving direction of the opening/closing member. The projection area of the end surface portion in the moving direction of the opening/closing member is smaller than a projection area of the sealing portion in the moving direction of the opening/closing member.