With the improvement of people's living standards, consumers are increasingly aware of environmental protection. There are more and more merchants who choose to display their products on point of sale cardboard display stands, and they all like to get higher sales volume at the terminal promotion. POP up cardboard display stand can print beautiful graphics to attract consumers. The merchant presents the designed document to the supplier and asks the supplier to print it onto the cardboard point of purchase display. The merchant can then carefully observe the graphics on the paper display shelf, whether there is a missing or hidden images or fonts and whether there is a defect If there are color, crack or black spots, these are problems.