Patent ID: 8019235

Claim:
A toner cartridge, comprising: a toner container which contains toner, the container having an end surface at one end along an elongated direction of the container, a discharge port on a peripheral surface of the one end which discharges the toner, an opening at the other end along an elongated direction of the container, and at least two first engaging portions provided along the elongated direction of the container on the peripheral surface of the one end facing each other though the discharge port; a cap which closes the opening of the container; and a guide member which slides along an axis direction of the toner container and is attached to the peripheral surface of the one end, the guide member including: a recess or a projection for identification of the cartridge; a discharge member which has a passage hole having substantially the same shape and dimensions as the discharge port; the passage hole and the recess or projection being integrally formed on the guide member; a shutter which is attached to the discharge member and opens and closes the passage hole; and at least two second engaging portions which mount and position the guide member with respect to the container by engaging with the first engaging portions; wherein the at least two first engaging portions and the at least two second engaging portions position the discharge port and the passage hole such that the discharge port and the passage hole overlap each other; wherein the toner cartridge is formed by: forming the toner container by blow molding; forming the guide member by injection molding with higher dimensional precision than that of the blow molding; and mounting the guide member on the toner container so that the passage hole and the discharge port overlap one another.