1439, a wooden relief printing machine was manufactured in Johannes Gutenberg. Although this vertical spiral manual printing machine has a simple structure, it has been used for 300 years.
A machine for printing words and images. Modern printing machines are generally composed of loading plates, inking, stamping and paper feeding (including folding). Its working principle is: firstly, the characters and images to be printed are made into a printing plate, which is installed on a printing machine, and then the ink is coated on the places with characters and images on the printing plate by hand or printing machine, and then directly or indirectly transferred to paper or other substrates (such as textiles, metal plates, plastics, leather, wooden boards, glass, ceramics, etc.), so as to reproduce the same printed matter as the printing plate. The invention and development of printing plays an important role in the spread of human civilization and culture.