The first lithographic printing was to directly print the pictures on the printing plate onto the substrate. Until 1904, a beauty called IW Rubel made new improvements. In one printing, he accidentally printed The image on the plate was first printed on a blanket. When the pattern on the blanket was transferred to the paper, he was surprised to find that the printed image was much higher quality than the normal printed product. This accidental discovery Prompted him to invent the offset printing press (Offset press) for indirect printing. From the thirty-four years of Guangxu (1908), China introduced the first lithographic offset printing press. To this day, offset printing has been widely used in China.
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