Fed rotary printing machine and a method for operating such a

The invention relates to a roller printing machine, consisting at least of two pressure points (2 to 5), and a method of operating a web printing press, wherein at least one printing material web (9) at at least one printing station (2 to 5) can be guided past and (at each printing station 2 to 5 ) with at least one offset printing ink is one-sided or two-sided assignable, and (at least one dryer 12) which dries the at least one printing material web (9). According to the invention, the printing material web (9) is dried at least to the first print position (Figures 2 and 4) and before the second printing point (3 and 5).