PROBLEM TO BE SOLVED: To provide a tablet printing device capable of inhibiting a deterioration in printing quality.SOLUTION: A tablet printing device according to an embodiment includes: a conveyor belt 21a which has a suction hole connected to a suction chamber 21f and which conveys a tablet T by sucking the tablet into the suction hole; a print head 24a which has a nozzle surface M1 formed with a nozzle, which has the nozzle surface M1 provided above the conveyor belt 21a in the state of being directed toward the conveyor belt 21a, and which employs an inkjet method for performing printing on the tablet T conveyed by the conveyor belt 21a; and a control plate 27 which is positioned on an upstream side in a conveyance direction A1 of the tablet T with respect to the print head 24a, which is provided between the conveyor belt 21a and a height position of the nozzle surface M1 of the print head 24a, and which controls an air current generated between the conveyor belt 21a and the print head 24a.SELECTED DRAWING: Figure 3【課題】印刷品質の低下を抑えることができる錠剤印刷装置を提供する。【解決手段】実施形態に係る錠剤印刷装置は、吸引チャンバ21fに接続された吸引孔を有し、その吸引孔に錠剤Tを吸引して搬送する搬送ベルト21aと、ノズルが形成されたノズル面M1を有し、ノズル面M1が搬送ベルト21aに向けられて搬送ベルト21aの上方に設けられ、搬送ベルト21aにより搬送される錠剤Tに印刷を行うインクジェット方式の印刷ヘッド24aと、印刷ヘッド24aより錠剤Tの搬送方向A1の上流側に位置付けられて搬送ベルト21aと印刷ヘッド24aのノズル面M1の高さ位置との間に設けられ、搬送ベルト21aと印刷ヘッド24aとの間に生じる気流を制御する制御板27とを備える。【選択図】図3