Abstract: A raster output scanner (ROS) system is configured to direct a scanning beam of light against a surface of a photosensitive imaging member at the Brewster angle is determined by the angle of refraction of the medium on both sides of the interface. When incident at the Brewster angle, the light rays, polarized in the plane parallel to the plane of incidence, will be almost totally absorbed by the photosensitive layer of the imaging member, resulting in almost total elimination of primary reflections from the surface of the imaging member. The increased transmission yields two benefits. The plywood effect created by the interference of the first dominant reflection from the top surface, and a second dominant reflection from the ground plane of the imaging member is eliminated. The second byproduct of exposing the imaging member at the Brewster angle is to create a reduction in the permissible tolerances for variations of the thickness of the photosensitive top layer of the imaging member.