The present invention is an apparatus for eliminating differential scanline bow in a raster output scanner (ROS) printing system. The apparatus employs a field lens device at the output of a pre-scanning optical assembly in order to direct the laser beams toward the scanning surface, or facet, at a right...http://www.google.es/patents/US5526166?utm_source=gb-gplus-sharePatente US5526166 - Optical system for the correction of differential scanline bow
Optical system for the correction of differential scanline bow
