To prevent a printing fault due to surplus ink or the leakage of ink from occurring.

In this inkpot device, an inkpot 5 is formed of a pot roller 2, the bottom plate 3 of an inkpot main body 7 and an ink weir 4. The ink weir 4 comprises an elastic member 10 constituted of a bottom part 25 sticking to the bottom plate 3 and a side part 26 sticking to the peripheral surface of the inkpot roller 2. The side part 26 of the elastic member 10 is pressed in the peripheral surface direction of the inkpot roller 2 by a first pressing member 11 and the bottom part 25 is pressed in the bottom plate 3 direction by a second pressing member 12. A scraping member 32 is constituted of a contact member 33 which returns the surplus ink from the surface of the pot roller 2 to the interior of the inkpot 5 and a leaf spring 34 which brings the contact member 33 into contact with the peripheral surface of the pot roller 2.