Because we use a full-process vacuum paper delivery system, slightly warped cardboard can also be fed accurately and achieve the desired printing accuracy. However, serious warpage that exceeds a certain range will affect the feeding and printing accuracy of the cardboard. Try to keep the cardboard in a good state before printing to create better conditions for exquisite printing. Ordinary slightly warped cardboard can be absorbed straight on the entire vacuum suction table to meet the printing accuracy requirements. When the thick cardboard has warped, the moisture content of the cardboard should be increased first, and the deformation should be manually eliminated before proceeding. print.