Cleaning procedure for anilox by overlaying laser spots

A cleaning procedure for anilox by overlaying laser spots where a resonator generates a pulsed laser beam incident on the anilox surface as a laser spot to constitute the cleaning-active zone, the cleaning procedure comprising the steps of:

• increasing a diameter of the laser spots (4) above a minimum diameter corresponding to a focal spot w0 to a working diameter wN,
• defocusing the pulses of the laser beam (1) using a lens (3) and at the same time, with the help of a galvo mirror (8), redirecting the laser pulses in an organized manner to a cleaning-active zone (19) such that the laser spots (4) hitting in the surface of the anilox (9) partially overlay in the linear direction (11) corresponding to the beam advancement and in a circumferential direction (13) corresponding to a direction of the anilox turn, simulating a continuous pulse.