Patent ID: 6232998
Filing Date: 2001-05-15
Classification: G03G,G06K

Abstract:
A double side printing apparatus for executing prints on both sides of a recording medium, comprising:a first image forming unit including a first exposure source for forming an image on one surface of said recording medium by exposing an image on one line to a light from the first exposure source;a second image forming unit including a second exposure source for forming an image on the other surface of said recording medium by exposing an image on one line to a light form the second exposure source;a first print control unit for controlling the one-line image exposure by said first exposure source to print a first plurality of lines in accordance with a horizontal synchronous signal; anda second print control unit for controlling the one-line image exposure by said second exposure source to print a second plurality of lines, synchronizing with the horizontal synchronous signal such that exposure of each of the second plurality of lines is synchronized with exposure of a respective one of the first plurality of lines.