A toner case comprising: a main body that contains toner; a discharge port located in the main body through which toner is discharged; an agitating unit (47, 52) rotatably positioned in the main body that agitates the toner; a transportation unit rotatably positioned in the main body for transporting toner toward the discharge port; a driving unit is rotatable in a forward and backward that drives the transportation unit and the agitating unit (47, 52); a first transmission gear provided on a transmission shaft so as to allow the first transmission gear to rotate as the driving unit rotates; a first one-way clutch that causes the transmission shaft to rotate together with the first transmission gear when the first transmission gear rotates in one rotation direction of the first transmission gear, and causes the first transmission gear to idle with respect to the transmission shaft when the first transmission gear rotates in the other rotation direction of the first transmission gear; a first idle gear engaged with the first transmission gear; a second idle gear driven from the first idle gear; a second transmission gear provided on the transmission shaft, the second transmission gear being engaged with the second idle gear; a second one-way clutch that causes the transmission shaft to rotate together with the second transmission gear when the second transmission gear rotates in one rotation direction of the second transmission gear, and causes the second transmission gear to idle with respect to the transmission shaft when the second transmission gear rotates in the other rotation direction of the second transmission gear; a third transmission gear provided so as to be rotatable together with the transmission shaft, and the third transmission gear being rotated the agitating unit (47, 52); a transportation gear provided on a rotation shaft of the transportation unit; a transportation one-way clutch that causes the rotation shaft of the transportation unit to rotate together with the transportation gear when the transportation gear rotates in one rotation direction of the transportation gear, and causes the transportation gear to idle with respect to the rotation shaft of the transportation unit when the transportation gear rotates in the other rotation direction of the transportation gear; and a detection unit positioned on the transportation unit, the detection unit being detected the number of rotations of the transportation unit, characterized in that the agitating unit (47, 52) and the transportation unit are connected to the driving unit respectively via separate torque transmission paths. a main body that contains toner; a discharge port located in the main body through which toner is discharged; an agitating unit (47, 52) rotatably positioned in the main body that agitates the toner; a transportation unit rotatably positioned in the main body for transporting toner toward the discharge port; a driving unit is rotatable in a forward and backward that drives the transportation unit and the agitating unit (47, 52); a first transmission gear provided on a transmission shaft so as to allow the first transmission gear to rotate as the driving unit rotates; a first one-way clutch that causes the transmission shaft to rotate together with the first transmission gear when the first transmission gear rotates in one rotation direction of the first transmission gear, and causes the first transmission gear to idle with respect to the transmission shaft when the first transmission gear rotates in the other rotation direction of the first transmission gear; a first idle gear engaged with the first transmission gear; a second idle gear driven from the first idle gear; a second transmission gear provided on the transmission shaft, the second transmission gear being engaged with the second idle gear; a second one-way clutch that causes the transmission shaft to rotate together with the second transmission gear when the second transmission gear rotates in one rotation direction of the second transmission gear, and causes the second transmission gear to idle with respect to the transmission shaft when the second transmission gear rotates in the other rotation direction of the second transmission gear; a third transmission gear provided so as to be rotatable together with the transmission shaft, and the third transmission gear being rotated the agitating unit (47, 52); a transportation gear provided on a rotation shaft of the transportation unit; a transportation one-way clutch that causes the rotation shaft of the transportation unit to rotate together with the transportation gear when the transportation gear rotates in one rotation direction of the transportation gear, and causes the transportation gear to idle with respect to the rotation shaft of the transportation unit when the transportation gear rotates in the other rotation direction of the transportation gear; and a detection unit positioned on the transportation unit, the detection unit being detected the number of rotations of the transportation unit, characterized in that the agitating unit (47, 52) and the transportation unit are connected to the driving unit respectively via separate torque transmission paths.