A toner container (32Y, 32M, 32C, 32K) that is detachably attached to a main body of an image forming apparatus such that a longitudinal direction of the toner container (32Y, 32M, 32C, 32K) is parallel to a horizontal direction, the toner container (32Y, 32M, 32C, 32K) comprising: a cylindrical container body (33Y, 33M, 33C, 33K) that has an opening (A, 33a) on one end thereof in the longitudinal direction, and is configured to convey toner contained therein toward the opening (A, 33a); a cap portion (34Y, 34M, 34C, 34K) into which the opening (A, 33a) of the container body is inserted, and which includes a toner outlet at a bottom portion thereof for discharging toner, which has been discharged from the opening (A, 33a) of the container body, to the outside of the toner container (32Y, 32M, 32C, 32K) in a vertically downward direction; and a shutter member that is held on the bottom portion of the cap portion (34Y, 34M, 34C, 34K), and is configured to move along an outer periphery of the cap portion (34Y, 34M, 34C, 34K) to thereby open and close the toner outlet, wherein the cap portion (34Y, 34M, 34C, 34K) is formed by integral molding, wherein the cap portion (34Y, 34M, 34C, 34K) includes a plurality of claw members (34g2) that engages with the container body to rotatably hold the container body, characterized in that the cap portion (34Y, 34M, 34C, 34K) includes a plurality of mold-processing holes (34j1, 34j3) arranged near the respective claw members (34g2) for forming the claw members (34g2), wherein each of the claw members (34g2) and the mold-processing holes (34j1, 34j3) does not overlap any other portions formed on the cap portion (34Y, 34M, 34C, 34K) when the cap portion (34Y, 34M, 34C, 34K) alone is viewed in a projection plane perpendicular to the longitudinal direction. a cylindrical container body (33Y, 33M, 33C, 33K) that has an opening (A, 33a) on one end thereof in the longitudinal direction, and is configured to convey toner contained therein toward the opening (A, 33a); a cap portion (34Y, 34M, 34C, 34K) into which the opening (A, 33a) of the container body is inserted, and which includes a toner outlet at a bottom portion thereof for discharging toner, which has been discharged from the opening (A, 33a) of the container body, to the outside of the toner container (32Y, 32M, 32C, 32K) in a vertically downward direction; and a shutter member that is held on the bottom portion of the cap portion (34Y, 34M, 34C, 34K), and is configured to move along an outer periphery of the cap portion (34Y, 34M, 34C, 34K) to thereby open and close the toner outlet, wherein the cap portion (34Y, 34M, 34C, 34K) is formed by integral molding, wherein the cap portion (34Y, 34M, 34C, 34K) includes a plurality of claw members (34g2) that engages with the container body to rotatably hold the container body, characterized in that the cap portion (34Y, 34M, 34C, 34K) includes a plurality of mold-processing holes (34j1, 34j3) arranged near the respective claw members (34g2) for forming the claw members (34g2), wherein each of the claw members (34g2) and the mold-processing holes (34j1, 34j3) does not overlap any other portions formed on the cap portion (34Y, 34M, 34C, 34K) when the cap portion (34Y, 34M, 34C, 34K) alone is viewed in a projection plane perpendicular to the longitudinal direction. a plurality of claw members (34g2) that engages with the container body to rotatably hold the container body, characterized in that the cap portion (34Y, 34M, 34C, 34K) includes a plurality of mold-processing holes (34j1, 34j3) arranged near the respective claw members (34g2) for forming the claw members (34g2), wherein each of the claw members (34g2) and the mold-processing holes (34j1, 34j3) does not overlap any other portions formed on the cap portion (34Y, 34M, 34C, 34K) when the cap portion (34Y, 34M, 34C, 34K) alone is viewed in a projection plane perpendicular to the longitudinal direction.