High-definition digital printer for board veneering paper

The utility model discloses a high-definition digital printer for board veneering paper, and relates to the technical field of digital printers, one end of a paper outlet of a high-definition digital printer body is connected with a rolling rod, a paper tube is detachably installed on the rolling rod, one end, close to an electric box, of the rolling rod is fixedly provided with a clamping ring on the side edge of the paper tube, and the clamping ring is provided with a clamping groove. The surface of the end, close to the fixing plate, of the winding rod is provided with an external thread, the external thread is in threaded connection with a threaded ring, the upper surface of the winding rod is sleeved with a paper tube, after one end of the paper tube abuts against the clamping ring, the other end of the winding rod rotates the threaded ring in a threaded mode till the other end of the paper tube abuts against the other end of the paper tube, and a motor is started to drive a first rotating rod to rotate;