Automated post-washout cleaning component designed to scrub and finalize photopolymer plates within a plate processing unit before drying. It operates with high-density, solvent-resistant bristles that remove residual washout solution, micro-particles, and sticky polymer sludge left behind after the main washout phase. By sweeping the plate surface clean prior to rinsing, it prevents residue re-deposition, eliminates surface defects, and guarantees a pristine, uniform finish on fine highlight dots and relief floors.