Abstract: A system for imaging printing forms includes a raster image processor breaking down a printing image data set into color separation data sets, a data storage medium for storing the color separation data sets generated by the raster image processor, the color separation data sets being printing location-nonspecific color separation data sets, and control devices and imaging devices. For the imaging of a printing form on the basis of one of the color separation data sets, each of the control devices drives one of the imaging devices to image the printing form in question. The system also includes a correction device integrated into each of the control devices to convert the printing location-nonspecific color separation data sets stored in the data storage medium into printing location-specific color separation data sets, which can be used to drive the imaging devices.

Abstract: In order to create preconditions, in a web-fed rotary press, for good format variability of the printed products and economic utilization of the printing material, at least two printed pages of different heights are arranged in the circumferential direction on a form cylinder.

Abstract: In a web-fed rotary printing machine having a plurality of cylinders rolling on one another, each cylinder is driven by a respective drive motor, and a control device synchronizes the motors to run at the same speed. The control device has stored therein a control program which can be activated in the event of a web break. The control program has an emergency stop ramp which brakes the motors to a standstill by jerked stop, preferably within five revolutions, the program driving the motors along the stop ramp in the event of a web break.

Abstract: A method of cross-cutting a moving web uses a cutting knife operably mounted on a knife cylinder having a circumferential distance LZ where LZ is smaller than a cut length, LA. The knife cylinder for revolving in a first and a second opposite direction is powered by a drive motor in either direction. The method includes revolving the knife cylinder in a first direction, cutting the web with the cutting knife, and completing a first cut. The knife cylinder is then reversed to retard progress in the first direction and then accelerated to the speed of the moving web until starting the second cut.

Abstract: An apparatus for setting the lateral register of a printing unit of a rotary press that prints on a paper web includes a first bearing block configured as a locating bearing arranged on the drive side of a forme cylinder; and a second bearing block configured as a floating bearing on the operating side of the forme cylinder. A pressure medium operated operating cylinder displaces the first bearing block axially and presses it against an adjustable stop without play for the purpose of setting the lateral register. A controller controls the axial location of the adjustable stop in at least one of a closed-loop fashion and an open-loop fashion based on register deviations determined by a scanning optics unit.

Abstract: An apparatus for setting the lateral register of a printing unit of a rotary press that prints on a paper web includes a first bearing block configured as a locating bearing arranged on the drive side of a forme cylinder; and a second bearing block configured as a floating bearing on the operating side of the forme cylinder. A pressure medium operated operating cylinder displaces the first bearing block axially and presses it against an adjustable stop without play for the purpose of setting the lateral register. A controller controls the axial location of the adjustable stop in at least one of a closed-loop fashion and an open-loop fashion based on register deviations determined by a scanning optics unit.

Abstract: In order to provide good format variability of printed products and economic utilization of the printing material, a web is supplied to a cross-cutting device and cut up into sheets with different cut lengths corresponding to heights of printed pages in a sequence.

Abstract: In order to create preconditions, in a web-fed rotary press, for good format variability of the printed products and economic utilization of the printing material, at least two printed pages of different heights are arranged in the circumferential direction on a forme cylinder.

Abstract: A method of cross-cutting a moving web uses a cutting knife operably mounted on a knife cylinder having a circumferential distance LZ where LZ is smaller than a cut length, LA. The knife cylinder for revolving in a first and a second opposite direction is powered by a drive motor in either direction. The method includes revolving the knife cylinder in a first direction, cutting the web with the cutting knife, and completing a first cut. The knife cylinder is then reversed to retard progress in the first direction and then accelerated to the speed of the moving web until starting the second cut.

Abstract: In web-fed rotary printing machines having a plurality of operating units arranged one after another, each unit having synchronously driven elements that interact directly or indirectly with the printing-material web, high reliability and short response times are achieved by a torque monitoring device having inputs for signals corresponding to the torque on at least one element of each operating unit. Upon the occurrence of an abrupt torque change on at least one monitored element, the monitoring device generates an output signal associated with a web break.

Abstract: A cylinder in equipment for making printing plates is provided which allows exposure of a cylinder that is mounted on both sides to be detached at a point of separation on a via side opposite its drive, a journal can be detached. The cylinder is driven by a blocking device capable of being fitted to a screw element which screws the journal to the cylinder and vice versa.

Abstract: An apparatus constructed which accurately guides and adjusts a cylinder axially in a rotary printing machine. For this purpose, an electromagnetic system, with which an axial force can be applied to the cylinder, is arranged on the frame of the rotary printing machine. The cylinder is mounted in mountings that permit axial displacement.

Abstract: In web-fed rotary printing machines having a plurality of operating units arranged one after another, each unit having synchronously driven elements that interact directly or indirectly with the printing-material web, high reliability and short response times are achieved by a torque monitoring device having inputs for signals corresponding to the torque on at least one element of each operating unit. Upon the occurrence of an abrupt torque change on at least one monitored element, the monitoring device generates an output signal associated with a web break.

Abstract: In a web-fed rotary printing machine having a plurality of cylinders rolling on one another, each cylinder is driven by a respective drive motor, and a control device synchronizes the motors to run at the same speed. The control device has stored therein a control program which can be activated in the event of a web break. The control program has an emergency stop ramp which brakes the motors to a standstill by jerked stop, preferably within five revolutions, the program driving the motors along the stop ramp in the event of a web break.

Abstract: A cylinder in equipment for making printing plates is provided which allows exposure of a cylinder that is mounted on both sides to be detached at a point of separation on a via side opposite its drive, a journal can be detached. The cylinder is driven by a blocking device capable of being fitted to a screw element which screws the journal to the cylinder and vice versa.

Abstract: In order to expose a cylinder mounted at both sides in side walls on its side opposite its drive, a structural unit can be moved away from the cylinder at a separation point thereof. The cylinder is driven and a jamming device is attached to a screwed element which screws the structural unit to the cylinder.