It uses an inked, raised surface to print. However, the plates are mounted with great accuracy around print cylinders. Most plates are made from a photopolymer material that will lend itself to making the curvature around the cylinders (back in the dark ages we used rubber plates). So, if we are printing a 4-color label we have 4 plates mounted on 4 different cylinders of the same diameter. After these 4 cylinders are brought in register with each other, they are synchronized with a rotary die or other cutting tools. After die-cutting, the waste is stripped from around each label. When done properly, materials are passing through our presses at speeds exceeding 500 ft per minute. Registration is checked by monitors mounted on presses to magnify registration targets.