A method is provided for playing back media from a network. The heating layer absorbs at least partly energy received from a radiation source and emits at least partly the thus-absorbed energy to the object supported on the supporting surface. A penetrating hole is formed on the cover plate. A stepping motor is used as the driver. A deflection system for the charged particles is connected upstream in the level of the gap pertaining to the cylinder lens and several electrodes or pole shoes, which generate a quadrupole field are provided in the direction of the gap pertaining to the cylinder lens. The carriage includes a nozzle that moves within the slot in either or both the longitudinal or transverse directions wherein the nozzle sprays an abrasive media for removal of the coating.