This tablet 3 has a first display layer 51, which is printed with visible ink, and a second display layer 52, which is printed with invisible ink. Text, a trademark or the like is printed on the first display layer 51 using visible ink, and can be visually confirmed by a manager or tablet user. A barcode or the like is printed on the second display layer 52 using invisible ink, and cannot be seen by the manager or tablet user. The second display layer 52 can be revealed and read using a blacklight or the like. The tablet 3 is printed using a tablet printing device 1 that is provided with transport disks A-C that transport the tablet 3 while supporting a side surface 7 by suction, and the first display layer 51 is printed by an inkjet head 4 and the second display layer 52 is printed by an inkjet head 5.錠劑(3)係且有利用可見墨水進行印刷處理而成的第1標示層(51)、以及利用不可見墨水進行印刷處理而成的第2標示層(52)。第1標示層(51)，是利用可見墨水印刷文字、商標等，管理承辦人員、錠劑利用者可利用目視進行確認。第2標示層(52)，是利用不可見墨水印刷條碼等，管理承辦人員、錠劑利用者並無法目視標示。第2標示層(52)是藉由黑光等予以顯現而成為可讀取。錠劑(3)是藉由錠劑印刷裝置(1)進行印刷處理，錠劑印刷裝置(1)係具備一邊將側面(7)進行吸附支承一邊搬送錠劑(3)之搬送盤(A~C)，藉由噴墨頭(4)印刷第1標示層(51)，藉由噴墨頭(5)印刷第2標示層(52)。
