The tradition method of measuring the 网点密度 mainly uses density meter to measure and analyze the density value of print materials. According to the comparison result between original copy and the prints, then the a series of parameters will be determined. Thus we can make the prints matching the originals as much as possible. Therefore, in the tradition way of density measruement, the density meter is the key to control the accuracy and quality. The tradition method of measuring the 网点密度 mainly uses density meter to measure and analyze the density value of print materials. According to the comparison result between original copy and the prints, then the a series of parameters will be determined. Thus we can make the prints matching the originals as much as possible. Therefore, in the tradition way of density measruement, the density meter is the key to control the accuracy and quality.