1. Sheet-fed offset rotary printing machine according to the five-cylinder system, having an impression cylinder (4) taking up from a feeder the sheets (3) to be printed, against which two blanket cylinders (6, 9) are applied, one behind the other as seen in the transport direction of the sheets (3), characterised in that the sheet (3) to be printed can be transferred from the impression cylinder (4) to the first blanket cylinder (6), and can be guided past the corresponding dilitho plate cylinder (7) to apply a dilitho verso print on it, and in that the sheet (3) can then be taken up again by the impression cylinder (4) and can be guided by it past the second blanket cylinder (9), the abovementioned dilitho plate cylinder (7) being separated from the blanket cylinder (6) when the latter is not guiding a sheet (3).
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