A printing apparatus comprising: a support member that supports a beverage use can, which is not part of the printing apparatus, in a cylindrical shape and rotates the beverage use can in a circumferential direction, wherein the beverage use can has a diameter of 35 mm to 80 mm and a length in axial direction of 60 mm to 180 mm; an ink jet head that includes a plurality of ink ejection ports arranged, in use, in an axial direction of the beverage use can supported by the support member to eject ink onto an outer circumferential surface of the beverage use can rotated in the circumferential direction to form a printed image formed into a band shape along the circumferential direction; and a control unit that controls ink ejection in the ink jet head, and when ink ejection to the outer circumferential surface is started, controls ink ejection to cause a first group of the ink ejection ports to perform ink ejection before another group of the ink ejection ports so that an adhesion position where ink ejected from the first group of the ink ejection ports is adhered to the outer circumferential surface and an adhesion position where ink ejected from the another group of the ink ejection ports (610B,C) is adhered to the outer circumferential surface are different from each other in the circumferential direction, characterized in that the control unit controls ejection of ink so that a length of a joining part in a circumferential direction of the beverage use can is set to 5 to 30 mm, the joining part being a line formed in the shape of triangles, trapezoids, or semicircles between an image, of the printed image, formed at the start of printing and an image formed at the end of printing and connecting said images. a support member that supports a beverage use can, which is not part of the printing apparatus, in a cylindrical shape and rotates the beverage use can in a circumferential direction, wherein the beverage use can has a diameter of 35 mm to 80 mm and a length in axial direction of 60 mm to 180 mm; an ink jet head that includes a plurality of ink ejection ports arranged, in use, in an axial direction of the beverage use can supported by the support member to eject ink onto an outer circumferential surface of the beverage use can rotated in the circumferential direction to form a printed image formed into a band shape along the circumferential direction; and a control unit that controls ink ejection in the ink jet head, and when ink ejection to the outer circumferential surface is started, controls ink ejection to cause a first group of the ink ejection ports to perform ink ejection before another group of the ink ejection ports so that an adhesion position where ink ejected from the first group of the ink ejection ports is adhered to the outer circumferential surface and an adhesion position where ink ejected from the another group of the ink ejection ports (610B,C) is adhered to the outer circumferential surface are different from each other in the circumferential direction, characterized in that the control unit controls ejection of ink so that a length of a joining part in a circumferential direction of the beverage use can is set to 5 to 30 mm, the joining part being a line formed in the shape of triangles, trapezoids, or semicircles between an image, of the printed image, formed at the start of printing and an image formed at the end of printing and connecting said images.