Abstract: A can body printing device includes: a support part supports a can body, on which printing of identification information and neck treatment by the manufacturer-side printing device have been performed, with respect to a diameter decreased portion that is a predetermined portion; and a printing device performs printing including digital printing onto a barrel portion of the can body supported by the support part.

Abstract: A can body printing system includes: a host device 10; and a printing device 30 configured to print an image acquired from the host device 10 onto can bodies. The print image information acquisition section 301 of the printing device 30 acquires, from the host device 10, image information to which an authorization for printing on can bodies is added. The activation control section 305 of the printing device 30 prints an image based on the image information onto can bodies on the basis of the authorization for printing on can bodies added to the acquired image information.

Abstract: A can body printing system includes: a measurement section 34 configured to measure, for a predetermined unit, a quantity of can bodies subjected to printing; a quantity detection section 304 configured to detect, for the unit, that the quantity measured for the unit reaches a predetermined allowable quantity of can bodies for the printing; and a print stopping section 305 configured to control a stoppage of the printing on can bodies in response to the detection by the quantity detection section 304.

Abstract: A can body printing system includes: a status detection section 305 configured to, when printing is performed on a can body by a user, detect satisfaction of a condition for the printing set by a third party that is not the user; and a print stopping section 306 configured to control a stoppage of the printing on the can body in response to detection of the satisfaction of the condition for the printing set by the third party that is not the user.

Abstract: A can body printing system includes: an identification information storage part 302 that stores identification information of a can body; an identification information reading part 303 that reads the identification information attached to the can body; a matching part 304 that matches the read identification information to the identification information stored in the identification information storage part 302; and a print processing part 308 that, upon receiving a matching result, reads print image information from a print image information storage part 307 to perform processing for printing onto the can body by inkjet printing.

Abstract: While deterioration in processing efficiency caused by printing devices with slow printing speed is suppressed, facilities necessary to manufacture can bodies are able to be shared. A can body manufacturing system includes: a can body conveyance route, by which can bodies are conveyed, provided to branch halfway and thereafter merge again, the can body conveyance route at least including a first branching conveyance route and a second branching conveyance route; a first printing device performing printing on can bodies conveyed by the first branching conveyance route; and a second printing device performing printing on can bodies conveyed by the second branching conveyance route, the number of can bodies on which printing is performed by the second printing device per unit time being different from the number of can bodies on which printing is performed by the first printing device per unit time.

Abstract: While deterioration in processing efficiency caused by printing devices with slow printing speed is suppressed, facilities necessary to manufacture can bodies are able to be shared. A can body manufacturing system includes: a can body conveyance route, by which can bodies are conveyed, provided to branch halfway and thereafter merge again, the can body conveyance route at least including a first branching conveyance route and a second branching conveyance route; a first printing device performing printing on can bodies conveyed by the first branching conveyance route; and a second printing device performing printing on can bodies conveyed by the second branching conveyance route, the number of can bodies on which printing is performed by the second printing device per unit time being different from the number of can bodies on which printing is performed by the first printing device per unit time.

Abstract: A beverage use can includes a cylindrical can main body. The can main body includes a round opening at its upper portion. The can main body further includes a bottom at its lower portion. The can main body further includes an outer circumferential surface. Inkjet printing is performed over the entire outer circumferential surface of the can main body to form inkjet-printed images thereon. Then, plate printing is performed on these inkjet-printed images to form thereon images including characters. This improves quality of images formed on an outer circumferential surface of a beverage use can.