Abstract: A control system for a printing press includes inputting into a central control apparatus to which a plurality of printing presses are connected data required for controlling a given printing press for a given printing job, and transmitting the data from the central control apparatus to a control device assigned to the given printing press.

Abstract: A feeder for a sheet-fed printing machine having a feeder table having at least one pulling unit coupled to the machine drive train for imparting to each newly arrived sheet a defined direction of pull, and a sensing arrangement for sensing the position of the side edges of the sheet, the feeder which includes at least one sensor having a response range, facing a respective side edge of the sheet, the sensor which produces two distinctly different signals that indicate the presence or absence, respectively, of the sheet in the desired position of the sheet before and after imparting the pull; electronic logic control apparatus operatively responsive to the signals from the sensor that are produced at the first and second interrogation of the sensor before and after the pull for determining if the sheet after the pull is positioned within the response range of the sensor; and alarm indicator operatively responsive to the logic control apparatus for producing an alarm indication in case it is determined by the

Abstract: A device in the form a magazine is disclosed for carrying away used printing plates from the plate cylinder of a printing machine. The device applies in particular to the automatic exchange of printing plates. The device has an arrangement for carrying away the plates with (first) holders for each printing plate capable of being activated. The (first) holders are arranged on a (first) carriage that can be moved along a (first) guide substantially over the whole length of the device, inside the magazine.

Abstract: Ink duct for offset or letterpress printing machines having an ink-metering device by which a respective ink gap is adjustable zonewise in axial direction of an ink-duct roller, wherein the ink-metering device includes metering elements and an elastic foil covering the metering elements, the metering elements having a region of supporting webs and being pressable against the ink-duct roller through the intermediary of the elastic foil, a foil-holding device for holding the elastic foil so that it is displaceable tangentially with respect to the ink-duct roller in a given feeding direction, and a motor-driven actuating device connected to the foil-holding device for continuously feeding the elastic foil in the given feeding direction, the elastic foil being formed with low-wear zones extending in the given feeding direction of the elastic foil and covering the region of supporting webs of the metering elements.

Abstract: Clamping and tensioning device for an inwardly bent trailing edge of a flexible printing plate disposed in an axial gap at the circumference of a plate cylinder adjustable in axial spacing and cooperating with a blanket cylinder, the printing plate being fixable at a leading edge thereof on the plate cylinder and being tensionable in circumferential direction on the plate cylinder, includes two clamping bars displaceably supported in the axial gap and forming therebetween a clamping slot for receiving therein an inwardly bent trailing edge of the printing plate, the two clamping bars extending axially in the gap within the cross-sectional contour of the plate cylinder and being loadable by reversible opposing clamping forces as well as by reversible tensioning forces in common in tensioning direction of the printing plate, and being respectively braced against the plate cylinder, the two clamping bars being formed with radially outer edges, the clamping and tensioning device being radially displaceably dispos

Abstract: Gripper apparatus on a sheet-processing machine includes a pair of cooperative gripper members, a control device including a computer for controlling the pair of gripper members, at least one data transmitter connected to the computer for inputting data therein, and at least one mechanism for performing at least one function selected from a group thereof consisting of opening and closing the pair of gripper members in response to an output of the computer, the function-performing mechanism being operatable at predetermined positions of the sheet-processing machine.

Abstract: A printing machine having a plurality of printing units, and circumferential and side register adjusting devices for adjusting the register in all but one of the printing units, the one printing unit being non-adjustable, includes a control-command input device operatively associated with the non-adjustable one printing unit for producing a relative change in position of a subject in the non-adjustable one printing of a register adjustment of the one printing unit as a result of logically consistent register adjustments of the printing units having the circumferential and side register adjusting devices, and method of operation.

Abstract: A device for coupling additional equipment to a machine having a control system with inputs and outputs for controlling the machine. The device includes connecting lines connecting the control system and the additional equipment, with the connecting lines coming together at a central connection site. The device can be located at the central connection site for metallically isolating all of the inputs and outputs of the control system from all of the inputs and outputs of the additional equipment.

Abstract: An assembly for controlling individual positioning elements in a delivery region of a sheet-fed printing machine, including at least one computer, at least one input device connected to the computer for inputting therein characteristic data specific to a sheet and/or to the printing machine, the computer having devices for further processing the characteristic data, and a control device operatively connected to the computer and having individual positioning elements for causing a format-dependent adjustment in accordance with the inputted characteristic data, the computer having devices for calculating, from the characteristic data, energy of the sheet oncoming to the delivery region and, in accordance with the calculated energy value, also for calculating an actuating value for at least one individual positioning element in the delivery region so that energy withdrawal by the individual positioning element is substantially equal to the energy of the oncoming sheet in the delivery region, the control device h

Abstract: Monitoring system for an electronic digital system. It includes an electronic digital control unit, a plurality of peripheral units, a bus system, the various system parts, and further an output circuit connected to the control unit. It further includes an output stage circuit with inputs connected to the output circuit, and outputs transmitting signals to the peripheral units for interrogating fault conditions therein, an interrupt trigger circuit with outputs connected to the control unit, and a digital filter connected between the monitoring system and the peripheral units for filtering out noise signals from the peripheral units.

Abstract: The invention relates to a protective device for offset rotary printing machines, in particular for printing units of sheet-fed rotary printing machines, with a sheet-like protective covering of the danger points, which is designed in such a way that sound protection for the printing units is achieved without adversely affecting easy accessibility for adjustment setting and service purposes.

Abstract: The invention relates to a rotary printing press, particularly offset printing press, the printing unit of which comprises a printing form, a damping unit as well as an inking unit, said inking unit being provided with a set ink profile. In order to obtain a fast change of ink profile, it is proposed that, in order to eliminate the previous ink profile and to prepare the buildup of a new ink profile, the printing form 32 is inked over its entire surface area with the inking unit 1.

Abstract: A method of washing an offset printing press having a plate cylinder, a rubber blanket cylinder, an impression cylinder, an inking unit a paper thickness compensator and a damping unit. The inking unit and the damping unit include, respectively, inking rollers and damping solution applicator rollers. The offset printing press also includes a washing apparatus. The washing apparatus, when in the wash mode, is placed in engagement with the rubber blanket cylinder of the printing press by control apparatus. Also, in the wash mode, the impression cylinder is engaged with or disengaged from the rubber blanket cylinder by a paper thickness compensator. The usual purpose of the paper thickness compensator is to compensate for the thickness of the stock in running-on mode but is employed herein also to effectuate washing of various rollers and/or cylinders of the printing press.

Abstract: A printing press having an inking unit and a wetting unit, which cooperate with a printing form by means of an inking roller and a wetting roller, having a control device for moving the wetting roller into an engagement or disengagement position with respect to the printing form. To expedite simple handling in the application of another substance onto the printing form, the wetting roller is supplied with the another substance by an apparatus provided therefore and moved into its engagement position with respect to the printing form by a control apparatus.

Abstract: A process for setting a production run ink zone profile on an offset printing press. Initially, an ink zone profile is established which is the reverse of the desired ink zone profile, and, thereafter, this reverse ink profile is switched over to the ink profile actually desired.

Abstract: A method of registration correction by turning a flexible plate about a point on a cylinder of a press, which includes determining data regarding a deviation from registration of a defined register rotation in at least one of a circumferential, side and angular position of the plate from a specimen made from the plate, and issuing adjustment commands initiating adjustment operations in devices provided in the press for respectively turning the plate and for effecting circumferential and side register, the adjustment commands taking into account the determined data, so as to finally correct the register of a pattern produced by the printing plate.

Abstract: A device for drying printed products in a printing machine having a transport device for conveying printed products along a given path includes a radiation device located outside the printing machine for generating radiant energy, and a device for transmitting the radiant energy generated by the radiation device to a surface of the printed product, the transmitting device being disposed at least partly in the printing machine so as to direct the radiant energy simultaneously over a defined width of the surface of the printed product.

Abstract: A method of determining dampening-medium feed in an offset printing machine includes inking a printing plate of the printing machine so that tinting of areas of the printing plate which are normally ink-free during a production-run process occurs, and feeding a defined quantity of dampening medium and increasing dampening-medium feed, respectively, while detecting a process of ink taking from the tinted areas, which is applicable as a measurement for the dampening-medium feed being adjusted; and a device for performing the method.

Abstract: An offset printing press having a wetting unit and an inking unit which has an ink metering device to set an ink profile, the inking unit and the wetting unit each having at least one applicator roller which can be moved into a position in contact with a printing plate mounted on a plate cylinder. To generate an ink profile which is very close to that required for the printing run and to reduce waste, the applicator rollers are moved by a control apparatus into a position of contact with the printing plate during the establishment of the ink zone profile which occurs before the beginning of printing, or during a jam or a blanket washing process which interrupts the printing process. A corresponding process is also described.