A tablet printing apparatus according to an embodiment is provided with: a pulley body 21b that has an internal space； a chamber 21f that is formed so as to be in communication with the internal space of the pulley body 21b； a suction tube that suctions the interior of the chamber 21f； driven pulleys 21c that are provided so as to face the pulley body 21b with the chamber 21f therebetween； a conveyor belt 21a that bridges the pulley body 21b and the driven pulleys 21c； and a print head device 25 that prints on tablets T held upon the conveyor belt 21a. The conveyor belt 21a has multiple suction holes that form a line in the rotation direction of the pulley body 21b and are in communication with the internal spaces of the pulley body 21b and the chamber 21f. The pulley body 21b and the chamber 21f constitute a suction chamber for applying a suction force to the suction holes of the conveyor belt 21a that are located at the outer peripheries of the pulley body 21b and the chamber 21f.提供可抑制印刷品質之降低的錠劑印刷裝置。實施形態所述之錠劑印刷裝置，係具備：具有內部空間的滑輪體(21b)、與滑輪體(21b)的內部空間連通而被形成的氣密室(21f)、在氣密室(21f)內做吸引的吸引管、隔著氣密室(21f)而與滑輪體(21b)對向而被設置的被動滑輪(21c)、搭設在滑輪體(21b)與被動滑輪(21c)間的輸送帶(21a)、對被保持在輸送帶(21a)上的錠劑(T)進行印刷的印刷頭裝置(25)。輸送帶(21a)係具有：連通於滑輪體(21b)及氣密室(21f)的內部空間，並排列在滑輪體(21b)的旋轉方向上的複數個吸引孔。滑輪體(21b)及氣密室(21f)係構成了，對位於輸送帶(21a)中的滑輪體(21b)及氣密室(21f)之外周的吸引孔賦予吸引力的吸引氣密室。
