Printing groups of a printing press

A printing couple of a web-fed rotary printing press, comprising a transfer cylinder (06), a forme cylinder (07), a roller (41) which roller (41) cooperates with the forme cylinder (07) as a dampening forme roller (41) of a dampening unit (09), and a single roller (28) of an inking unit (08), wherein said single roller (28) of the inking unit cooperates with the forme cylinder (07) as a single ink forme roller (28) which contacts the forme cylinder, wherein the inking unit (08) is configured with two axially oscillating distribution cylinders (33;

• 33′), arranged in series in an inking path between an ink supply system of the inking unit and the forme cylinder (07), wherein the rotational axes of the forme cylinder (07) and of the allocated transfer cylinder (06), when their rotational axes are in an operational position, define a plane (E), and wherein two of the printing couples (04), consisting of two cooperating transfer cylinders (06) and two allocated forme cylinders (07), together form a blanket-to-blanket printing unit (03), characterized in that the single ink forme roller (28) has substantially the same diameter as the cooperating forme cylinder (07), that, in the operational position, a plane (A) through the rotational axes of the single ink forme roller (28) and of the forme cylinder (07) forms a maximum angle δ of 15° with the plane (E) through the rotational axes of the cooperating forme cylinder (07) and the transfer cylinder (06) and that the single ink forme roller is rotationally driven by an ink forme roller drive motor that is independent of the forme cylinder.