Abstract: Tablets are delivered from a tablet storage case (3) mounted on a case support table (4), and when the tablets are passed through a delivery passage (9), formed in the case support table (3), quantity of the passed tablets is counted by a counting means (10). A start state of mounting of the tablet storage case (4) on the case support table (3) is detected by case detection means (8, 19), and the counting sensor (10) is kept in off state until the start state of mounting of the photon-electron conversion region is detected by the case detection (8, 19) and is set to On state after the detection. This ensures prevention of erroneous operation due to the mounting and dismounting of the tablet storage case (4) on and from the case support table (3).

Abstract: Tablets are delivered from a tablet storage case 3 mounted on a case support table 4, and when the tablets are passed through a delivery passage 9 formed in the case support table 3, quantity of the passed tablets is counted by a counting means 10. A start state of mounting of the tablet storage case 4 on the case support table 3 is detected by case detection means 8, 19, and the counting sensor 10 is kept in off state until the start state of mounting of the photon-electron conversion region 4 is detected by the case detection means 8, 19 and is set to on state after the detection. This ensures prevention of erroneous operation due to the mounting and dismounting of the tablet storage case 4 on and from the case support table 3.