Can printer comprising transfer blankets including a relief

A device 1 for imprinting cans 8 comprises a plurality of ink cartridges 2a-2f that supply ink to a plurality of printing plates 3a-3f; the printing plates 2a-2f communicate with transfer blankets 5a-5l fixed to drum 6, the transfer blankets 5a-5l move ink from the printing plates 2a-2f and apply it to cans 8; each transfer blanket 2a-2f includes a different art in low relief (fig 15) which produces an image on cans 8 in addition to the image produced by printing plates 2a-2f; the device 1 is preferably a rotary dry offset printer. A method of printing cans comprising forming a relief image in a transfer blanket with a laser is also disclosed.