Abstract: The invention relates to a method for the control of the rotational speed for a drive device (20) of a printing roll (10) with a resilient printing sleeve (12) of a flexo printing press (100) comprising the following steps: Determination of a first rotational speed (V1) of the printing roll (10) in the free wheeling without active drive device (20) with a first adjusting value (B1), Determination of a second rotational speed (V2) of the printing roll (10) in the free wheeling without active drive device (20) with a second adjusting value (B2), Generation of a control curve (30) of the rotational speed related to the adjusting value on the basis of the determination steps, Usage of the control curve (30) for the control of the rotational speed of the printing roll (10) with an active drive device (20).

Abstract: A method of adjusting the print repeat length of a print image in a multicolor rotary printing machine, particularly a flexographic printing press, having a central impression cylinder, a first plate cylinder, and a second plate cylinder, including modifying the peripheral velocity of the first plate cylinder and the peripheral velocity of the second plate cylinder during printing operation, relative to the peripheral velocity of the central impression cylinder, and adjusting the longitudinal register of the first plate cylinder having the modified peripheral velocity and the longitudinal register of the second plate cylinder having the modified peripheral velocity.

Abstract: The invention relates to a method for the control of the rotational speed for a drive device (20) of a printing roll (10) with a resilient printing sleeve (12) of a flexo printing press (100) comprising the following steps: Determination of a first rotational speed (V1) of the printing roll (10) in the free wheeling without active drive device (20) with a first adjusting value (B1), Determination of a second rotational speed (V2) of the printing roll (10) in the free wheeling without active drive device (20) with a second adjusting value (B2), Generation of a control curve (30) of the rotational speed related to the adjusting value on the basis of the determination steps, Usage of the control curve (30) for the control of the rotational speed of the printing roll (10) with an active drive device (20).

Abstract: A method for adjusting the print repeat length of a print image in a multicolor rotary printing machine, particularly a flexographic printing press, having a first plate cylinder and at least one further plate cylinder, wherein the plate cylinder is on a shared, or multiple, central impression cylinder which conveys the print substrate, and wherein the peripheral, velocity of the first plate cylinder is adjusted relative to the peripheral velocity of the central impression cylinder, characterized in that the peripheral, velocity of the first plate cylinder is modified during the ongoing printing operation, relative to the peripheral velocity of the central impression cylinder.