The invention discloses a single-sided and double-sided dual-purpose connecting line face-to-face printing offset press. The single-sided and double-sided dual-purpose connecting line face-to-face printing offset press comprises a paper control mechanism, a
blanket cylinder, a plate cylinder, an impression / offset cylinder and an ink supply
system. The
blanket cylinder and the plate cylinder are respectively provided with a printing
blanket and a printing plate which press each other correspondingly, the printing blanket is of a single-blanket two-
unit structure, the printing plate is of a single-plate two-
unit structure, the impression / offset cylinder and the printing blanket of the blanket cylinder correspondingly press each other, and the ink supply
system is used for supplying ink to the plate cylinder. According to the single-sided and double-sided dual-purpose connecting line face-to-face printing offset press, when the single-sided
offset printing and two-sided
offset printing are performed simultaneously, a single-piece continuous paper
feeding mode is utilized, and any adjustment to the device is not needed; when a face-to-face printing function is utilized, front images and texts and back images and texts are manufactured on the same printing plate, so that factors affecting precise face-to-face printing in an engineered
mass production can be reduced to the minimum, front-back printing errors can be less than 0.1 mm,
transmittance and color changing can be guaranteed, and the stable operation of height-class printing anti-counterfeiting technologies of datumized
watermark, two-sided connecting lines and front-back connecting lines and the like in the
mass production can be achieved.