PROBLEM TO BE SOLVED: To provide a tablet printing device which can quickly suppress the swinging motion of tablets sequentially supplied from the upper side of a conveyor belt and perform printing in high quality.SOLUTION: A tablet printing device comprises: a conveyance mechanism which moves a conveyor belt and conveys tablets sequentially supplied to the surface of the conveyor belt from above the surface； and an ink jet printing mechanism which includes a nozzle head having nozzles jetting ink droplets and arranged so as to face the surface of the conveyor belt, and performs printing to the tablets by jetting the ink from the plurality of nozzles to the tablets on the surface of the conveyor belt, and has such a configuration that minute protrusions 170 are formed with a prescribed density in a region Ep of the surface of the conveyor belt where the tablet can be placed.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT
