1. Adopt paper shuttling mode, merely one block roller could finish without considering the size of paper 2. Adopt no-axle control system to control every servo motor of each roll in printing driver accurately, which make the optimization control to machine state. 3. Adopt color code photoelectric sensing technology to automatically overprint first so as to improve the precision of overprint and shorten the prepare time of pre-print. 4. Adopt optimum ink roller collocation and speed, improve the printing quality. 5. First design the printing pressure regulator, which makes it neední»t to regulate pressure while changing the block roller, and can improve efficiency consumedly. 6. The supply of ink and the speed of the machine will change proportionally, makes the printing result better. 7. Troubles of the machine would be shown on the screen automatically, which will shorten the repair time.