DEVICE FOR LASER SCANNING USING PLURAL LASER BEAM MODULES AND LASER BEAM PRINTER CONTAINING LASER SCANNING DEVICE

摘要

The invention discloses a kind of laser beam printer, which has the multiple Laser Scanning Equipments and laser module using laser beam. Input type information is converted into a data, the line number from graphics engine and position data to laser scanning device to be used to scan photosensitive drums modulation by the laser scanning device according to the present invention using multiple laser beam modules. S laser beams, with multiple laser beam modules, it is formed by laser beam production device, the laser beam production device is used for the position data by inputting multiple lines rotating at a predetermined velocity with direction, applying from graphics engine to distinguish modulating lasering beam, the polygonized structure is polygonized structure, and laser beam, by the way that the number of the laser beam deflected on polygonal mirror and mirror polygon is input in output bias, multiple laser beams are exported with angle corresponding with rotation speed and direction, each carries image on PRED. The permanent location of drum barrel has condenser lens and multiple guide rails for scanning. Laser beam module, which does not need substantial contribution, can effectively utilize to improve the output speed of printer and resolution ratio.