Method for implementing printing on photosensitive paper by using 200-480nano laser

The invention discloses a method for implementing printing on photosensitive paper by using 200-480nano laser, relating to the fields of offices, printing and imaging. The method has the advantages of protecting the environment, reducing energy consumption, saving the work cost, realizing computer online and the like. The method comprises the following steps of: reading a manuscript through a scanner, performing image processing, converting manuscript signals into electrical signals, outputting the electrical signals to drive a laser tube, irradiating a photosensitive paper medium by using the light emitted by a laser diode in a 200-480nano area, and developing images, characters and figures on the photosensitive medium by using a development agent or an ammonia smoking method to realize the functions of imaging, printing and copying.