A special Combi Sword Brush has been developed specifically for cleaning chipboard which has a surface finish, prior to camera inspection. The flexibly mounted linear brushes have tactile control elements that are bedded flexibly and compensate bursts in the decorative coating, a feature that allows a perfect adjustment to the surface. They remove edge strips, fragments, particles and dust. If the panels stop, a pneumatic short stroke lifts the linear brushes from the surface. If there are larger bursts on the surface, the brushes are rapidly moved into a safe position. If particles from an open edge area drop on the panel surface again at the outfeed of the machine, they may be absorbed by the Trans-Vac-Unit TKL 46 that is available as an option.