Abstract: An apparatus for measuring zonal inking on a printed product having a plurality of inking zones includes a plurality of optical sensors, each of the optical sensors picking up signals from at least one zonal measurement region assigned to a respective one of the plurality of inking zones of the printed product. The apparatus also includes at least one optical switch connected for receiving the picked up signals from the plurality of optical sensors and at least one measurement device connected to the at least one optical switch for receiving the picked up signals and evaluating the picked up signals.

Abstract: A device for producing a coating on printed products from a printing press is provided. The coating device can be actuated digitally via printing image data thereby allowing the coating motif to be designed in a variable manner The coating device can include an inkjet printer in the form of an inkjet head array or an inkjet head bar acting as a varnishing unit that operates line-by-line on large-format printing material. The coating device can also be integrated in a rotary press having a varnishing unit for coating a printing material that has been processed in the printing press. The coating device can also be integrated with a dryer. The printing material can be passed under the outlet openings of the inkjet heads and the dryer can be arranged directly after the inkjet printer in the transport direction of the printing material in order to dry the liquid coating material on the printing material after the application.

Abstract: The method for producing print control strips used for the control of a process of printing an image, which has several inking zones, using at least one scale color includes providing for each inking zone of the image to be printed data from a prepress stage, evaluating the data from the prepress stage thereby checking for each inking zone whether an ink consumption for any of the scale colors in the image to be printed lies below a threshold value, and printing the print control strip in each inking zone without the or each scale color, whose ink consumption in the inking zone of the image to be printed lies below the threshold value, thus adapting the print control strip to the image to be printed.

Abstract: The method for controlling a printing process in a printing press by means of cut register control, ink register control or ink density control includes the steps of measuring a printed image with a sensor to determine an actual characteristic value of the printed image, determining a prepress-based desired characteristic value for the printed image from prepress print image data by taking into account data about characteristics of the sensor, comparing the actual characteristic value of the printed image with the prepress-based desired characteristic value thereby acquiring a control deviation, and determining an actuating signal based on the control deviation for adjusting the printing process.

Abstract: The amount of cleaning media needed for cleaning the printing forme is determined with regard to the level of coverage with ink and/or image carrier material of a printing surface and/or from image data about the printing surface. An erasing and hydrophilizing apparatus includes a cleaning apparatus and nozzles for applying a cleaning medium, the cleaning apparatus and/or the nozzles being connected to a computing and/or storage device.

Abstract: An apparatus for measuring zonal inking on a printed product having a plurality of inking zones includes a plurality of optical sensors, each of the optical sensors picking up signals from at least one zonal measurement region assigned to a respective one of the plurality of inking zones of the printed product. The apparatus also includes at least one optical switch connected for receiving the picked up signals from the plurality of optical sensors and at least one measurement device connected to the at least one optical switch for receiving the picked up signals and evaluating the picked up signals.

Abstract: The invention relates to a method for operating a printing press, in particular an offset printing press, so as to control accumulation of printing material on at least one rubber blanket of a transfer cylinder. Damping solution onto a forme cylinder, which interacts with the transfer cylinder, is controlled so as to minimize the positive build-up and/or negative build-up of the printing material on the transfer cylinder.

Abstract: A device for producing a coating on printed products from a printing press is provided. The coating device can be actuated digitally via printing image data thereby allowing the coating motif to be designed in a variable manner The coating device can include an inkjet printer in the form of an inkjet head array or an inkjet head bar acting as a varnishing unit that operates line-by-line on large-format printing material. The coating device can also be integrated in a rotary press having a varnishing unit for coating a printing material that has been processed in the printing press. The coating device can also be integrated with a dryer. The printing material can be passed under the outlet openings of the inkjet heads and the dryer can be arranged directly after the inkjet printer in the transport direction of the printing material in order to dry the liquid coating material on the printing material after the application.

Abstract: In order to simplify the sequence of creating a mask, in particular for producing a printing plate, and at the same time to improve the quality of the printing plate produced by means of a mask, the use of laser-induced thermal transfer is provided. The structure information is applied directly to the surface of a printing plate carrier during the creation of a mask, by means of a thermal transfer film and a laser image-setting unit, so that by means of the structure information applied, differentiation with regard to image points and non-image points can be carried out directly in order to produce a printing plate.

Abstract: A method serves the purpose of introducing fuel and/or thermal energy into a gas stream flowing to a catalytic reactor. The gas stream flows in part through an exterior chamber and in part through an interior chamber, which is at least partially open in the flow direction and to which fuel is supplied. The partial streams are re-united after flowing through the two chambers and are fed to the catalytic reactor. In a starting phase of the still cold catalytic reactor, the fuel is burned in the interior chamber. During conventional normal operating modes of the warm catalytic reactor, the fuel is vaporized in the interior chamber. In a suitable device, the exterior chamber and the interior chamber are designed as two tube elements that are inserted into one another.

Abstract: A system and method is provided for starting a catalytic reactor supplied with an oxygen-containing reactant gas, such as air, and a vaporized liquid fuel comprising carbon and hydrogen, such as methanol. The temperature difference between the temperature in the inlet area of the catalytic reactor and the temperature in the outlet area of the catalytic reactor is monitored, and the supply of the liquid fuel is adjusted based on the temperature difference, while the reactant gas is supplied to the catalytic reactor continuously.

Abstract: A method for imaging a printing form in which the printing form is charged on its entire surface and is coated on its entire surface with particles, in particular toner particles, which bear the opposite charge. The layer formed by the particles is then fixed in accordance with the image by a beam, in particular a laser beam, and especially by infrared radiation, on the surface of the printing form or ablated in accordance with the image. Thereupon, the unfixed portions of the layer are removed or the non-ablated portions are fixed by full-surface heat treatment.

Abstract: In a fuel cell system having a fuel cell and a catalytic burner connected downstream thereof, an additional hydrogen-containing medium is fed to the catalytic burner.

Abstract: A method for imaging a printing form in which the printing form is charged on its entire surface and is coated on its entire surface with particles, in particular toner particles, which bear the opposite charge. The layer formed by the particles is then fixed in accordance with the image by a beam, in particular a laser beam, and especially by infrared radiation, on the surface of the printing form or ablated in accordance with the image. Thereupon, the unfixed portions of the layer are removed or the non-ablated portions are fixed by full-surface heat treatment.

Abstract: The amount of cleaning media needed for cleaning the printing forme is determined with regard to the level of coverage with ink and/or image carrier material of a printing surface and/or from image data about the printing surface. An erasing and hydrophilizing apparatus includes a cleaning apparatus and nozzles for applying a cleaning medium, the cleaning apparatus and/or the nozzles being connected to a computing and/or storage device.

Abstract: In order to simplify the sequence of creating a mask, in particular for producing a printing plate, and at the same time to improve the quality of the printing plate produced by means of a mask, the use of laser-induced thermal transfer is provided. The structure information is applied directly to the surface of a printing plate carrier during the creation of a mask, by means of a thermal transfer film and a laser image-setting unit, so that by means of the structure information applied, differentiation with regard to image points and non-image points can be carried out directly in order to produce a printing plate.

Abstract: A method serves the purpose of introducing fuel and/or thermal energy into a gas stream flowing to a catalytic reactor. The gas stream flows in part through an exterior chamber and in part through an interior chamber, which is at least partially open in the flow direction and to which fuel is supplied. The partial streams are re-united after flowing through the two chambers and are fed to the catalytic reactor. In a starting phase of the still cold catalytic reactor, the fuel is burned in the interior chamber. During conventional normal operating modes of the warm catalytic reactor, the fuel is vaporized in the interior chamber. In a suitable device, the exterior chamber and the interior chamber are designed as two tube elements that are inserted into one another.

Abstract: In a fuel cell system having a fuel cell and a catalytic burner connected downstream thereof, an additional hydrogen-containing medium is fed to the catalytic burner.

Abstract: A device for treating a medium in a fuel cell system has a reactor with a catalyst-containing region between a first part-chamber of the reactor and a second part-chamber of the reactor. The catalyst-containing region is arranged in the flow path of the medium, so that the medium flows through it. The first part-chamber is surrounded at least partially by the second part-chamber, and the catalyst-containing region is arranged as a partition between the first, inner part-chamber and the second, outer part-chamber. The partition is formed by a nonwoven provided with catalyst material.