Abstract: A method for operating a web printing press is provided. The method includes unwinding a substrate from a roll to define a web; during makeready, printing the web using at least one print unit, the makeready ending when the web is being printed to a desired standard; stopping the web after the makeready; rewinding the web so that the substrate printed during the make ready pass back through the print unit; and unwinding again the rewound substrate to pass through the print unit. A press and printed product are also provided.

Abstract: A method for operating a web printing press is provided. The method includes unwinding a substrate from a roll to define a web; during makeready, printing the web using at least one print unit, the makeready ending when the web is being printed to a desired standard; stopping the web after the makeready; rewinding the web so that the substrate printed during the make ready pass back through the print unit; and unwinding again the rewound substrate to pass through the print unit. A press and printed product are also provided.

Abstract: A method is provided of charging an inker in a lithographic printing press. The method comprises placing all of the printing units of the printing press in an off impression position, with a continuous substrate passing through the printing units, each printing unit including a blanket cylinder; and in one or more printing units of the plurality of printing units, moving the takeaway roller into contact with the blanket cylinder of the printing unit. Thereafter, the method includes driving the ink train, plate cylinder, blanket cylinder and the take away roller at a first surface speed, whereby the ink from the ink train transmitted to the plate cylinder from the ink train, from the plate cylinder to the blanket cylinder, and from the blanket cylinder to the take away roller; and during said driving step, keeping the continuous substrate stationary or moving the continuous substrate at a second surface speed less than 50% of the first surface speed.

Abstract: A method for operating a web printing press is provided. The method includes unwinding a substrate from a roll to define a web; during makeready, printing the web using at least one print unit, the makeready ending when the web is being printed to a desired standard; stopping the web after the makeready; rewinding the web so that the substrate printed during the make ready pass back through the print unit; and unwinding again the rewound substrate to pass through the print unit. A press and printed product are also provided.

Abstract: A method of inking a substrate in a printing press is provided. The printing press includes a plurality of printing units, each printing unit includes a blanket cylinder, a plate cylinder and an inker. The method includes the steps of running the plate cylinder, blanket cylinder and inker at a press speed, driving the inker independently, printing on a substrate with a desired ink film thickness at the press speed and stopping the press for a press stop event. Stopping the press further includes stopping the inker at a maximum stop rate, stopping the plate cylinder and blanket cylinder at a normal stop rate and moving the plate cylinder and blanket cylinder into an off impression position.

Abstract: A method for operating a web printing press is provided. The method includes unwinding a substrate from a roll to define a web; during makeready, printing the web using at least one print unit, the makeready ending when the web is being printed to a desired standard; stopping the web after the makeready; rewinding the web so that the substrate printed during the make ready pass back through the print unit; and unwinding again the rewound substrate to pass through the print unit. A press and printed product are also provided.

Abstract: A method and printing press for performing the method is provided for recording print processing conditions on a printed web of a rewind roll during operation of a printing press to print a print job, including associating sensed printing process parameters with tracked locations on the web at which the printing process parameters were sensed such that, for each tracked location, there is an associated set of printing process parameters; storing in memory, for each tracked location, the associated set of printing process parameters; and storing in memory an identification of the rewind roll, and an association of the rewind roll with the associated set of printing process parameters for each tracked location.

Abstract: A method of inking a substrate in a printing press is provided. The printing press includes a plurality of printing units, each printing unit includes a blanket cylinder, a plate cylinder and an inker. The method includes the steps of running the plate cylinder, blanket cylinder and inker at a press speed, driving the inker independently, printing on a substrate with a desired ink film thickness at the press speed and stopping the press for a press stop event. Stopping the press further includes stopping the inker at a maximum stop rate, stopping the plate cylinder and blanket cylinder at a normal stop rate and moving the plate cylinder and blanket cylinder into an off impression position.

Abstract: A method is provided of charging an inker in a lithographic printing press. The method comprises placing all of the printing units of the printing press in an off impression position, with a continuous substrate passing through the printing units, each printing unit including a blanket cylinder; and in one or more printing units of the plurality of printing units, moving the takeaway roller into contact with the blanket cylinder of the printing unit. Thereafter, the method includes driving the ink train, plate cylinder, blanket cylinder and the take away roller at a first surface speed, whereby the ink from the ink train transmitted to the plate cylinder from the ink train, from the plate cylinder to the blanket cylinder, and from the blanket cylinder to the take away roller; and during said driving step, keeping the continuous substrate stationary or moving the continuous substrate at a second surface speed less than 50% of the first surface speed.

Abstract: A web printing press and a method of reducing ink build-up on a printing cylinder of a web printing press are described. The web is moved sideways, either by web guides or by moving a web roll stand, during a printing cylinder wash operation to aid in removing ink build-up.

Abstract: A web printing press and a method of reducing ink build-up on a printing cylinder of a web printing press are described. The web is moved sideways, either by web guides or by moving a web roll stand, during a printing cylinder wash operation to aid in removing ink build-up.

Abstract: A brush-type dampening unit in a rotary printing machine, includes at least one revolving carrier member having a multiplicity of brush bristles arranged thereon a pan roller dipping at least partly into a dampening-fluid pan, and revolving in a direction opposite to that of the carrier member, adjusting means for adjusting the position of the carrier member with respect to the pan roller, the revolving carrier member and pan roller having respective separately controllable drives independent of a drive of the printing machine, and means for zonally metering a quantity of dampening fluid over the width of the machine, as well as for influencing a direction of movement of the dampening fluid.