Patent ID: 8275295

Claim:
A toner container which is mountable and removable at a main body of an image forming apparatus, the toner container comprising: at least one toner filling port provided in a casing body of the toner container; an air vent port provided adjacent to the toner filling port and venting air from the casing body, the air vent being formed in a shape in which each segment connecting two points on two circles whose dimensions are different from each other are common between the two circles; and a sealing member which covers the toner filling port, the air vent port, and a predetermined area of surroundings of the toner filling port and the air vent port, from an outer side of the casing body, for sealing toner inside the casing body, wherein the sealing member includes transparency enabling identification of a color of the toner inside the casing body, and the sealing member includes an adhesive portion at a portion which covers the toner filling port and the air vent port, wherein the adhesive portion at a portion which covers the toner filling port and the air vent port is provided at an inner side of the casing body, such that the toner in the casing body adheres to the adhesive portion, wherein the toner filling port and the air vent port are provided in a side surface disposed at one end of a longitudinal direction, wherein the side surface having the longitudinal direction does not have the largest area among all planar sides that compose the toner container.