Abstract: A method for controlling a printing process is disclosed. The method includes printing a printing material by a printing unit on a basis of data of a prepress stage. A printed result on the printing material is compared with a desired value and a correction value is derived from the comparison. The data of the prepress stage is corrected with the correction value.

Abstract: A method for checking intermediate, part or end products during the production process without using marks is disclosed. The print image of the intermediate, part or end product produced on a digital printing press is scanned at least after a predetermined production step in order to subsequently compare the scanned print image with stored product data. Based on the comparison, the check of the previous processing steps and/or the calculation of the subsequent control actions for the order allocated to the intermediate, part or end product and the control actions by the production device are carried out.

Abstract: A digital printing device for the dynamic printing of a substrate web statically printed in a reel-fed printing press is disclosed. The digital printing device includes a position sensor which measures the substrate web for regulating a print position for the dynamic printing. The digital printing device is provided with a signal from a signal source of the reel-fed printing press. A position sensor control generates a synchronization signal and provides the synchronization signal to a digital printing head control. A speed signal transformer generates a feed signal and provides the feed signal to the digital printing head control. The digital printing head control activates the digital printing head dependent on the synchronization signal and the feed signal.

Abstract: A folding roller for use in a folding device for folding a fold is disclosed. At the folding device a substrate to be folded is pushed into an inlet roller nip of folding rollers rotating in opposite directions by a folding knife for forming a fold. The folded-away substrate is transferred from the folding rollers to a belt line guided about the folding rollers and consisting of transport belts for the purpose of onward transporting the folded product. The folding roller in the regions in axial extension in which at least one transport belt at least partially wraps the folding roller includes at least one rubber-elastic insert.

Abstract: A method for cleaning a rotating surface of a printing press cylinder or a rotating surface of a printing press roller, or a rotating surface of a print form or a transfer form arranged on a printing press cylinder within a printing unit includes the steps of: applying a liquid, water-based washing agent, containing at least 60% water and the rest at least surfactants, onto the surface to be cleaned within the printing unit; dissolving contaminations from the surface to be cleaned within the printing unit with the help of the washing agent and a cleaning device; and removing the dissolved contaminations from the surface to be cleaned within the printing unit, at least with the help of the cleaning device.

Abstract: A method for printing on a substrate is disclosed. In an embodiment of the method, the method includes printing a small print control mark of a printed color in a print zone of the substrate and printing a large print control mark of the printed color in the print zone of the substrate. A measurement value of the small print control mark and a measurement value of the large print control mark is detected by a sensor. A deviation between the measurement value of the small print control mark and the measurement value of the large print control mark is determined and an actual value of a print parameter of the printed color is corrected based on the deviation.

Abstract: A method for a assigning at least one production order comprising known job data from one or a plurality of production orders, which are in line for processing, to a particular production device of a plurality of production devices, wherein production device data with regard to the production options thereof can be written to each of the production devices, by means of which an efficiency-optimized assignment of at least one production order to a particular production device is made possible without manual interventions and person-bound analysis. The method permits the assignment of the at least one production order to a particular production device with regard to at least one sorting criterion to be carried out automatically.

Abstract: A device and a method for folding a print substrate web is disclosed. The device has devices for quarter folding and for cross-cutting the print substrate web for severing individual products as well as devices for cross folding. As viewed in the transport direction of the products, an arrangement for dividing the product stream is provided after a second quarter folding device, the arrangement conveying the successive products to a first and a second conveyor belt in an alternating manner.

Abstract: A method for optimising the production sequences of a plurality of printing orders assigned to a printing system is provided. When multiple printing orders are assigned to a specific printing system, each printing order on its own can be economically produced on the specific printing system, but economically optimal processing of the entirety of the printing jobs to be processed in a defined time interval is not thereby ensured. To increase the efficiency of the processing of a plurality of printing orders, the printing orders assigned to the printing system are arranged in their order and thus their sequence of processing in an automated manner, such that the printing orders assigned to the printing system can be produced in an optimised manner at least with regard to at least one sorting criterion. The method is applicable for sorting printing orders both for print form variable printing methods, as well as for non-print form variable printing methods and also for sheet-fed and/or reel-fed printing systems.

Abstract: A method for cleaning a rotating surface of a printing press cylinder or a rotating surface of a printing press roller, or a rotating surface of a print form or a transfer form arranged on a printing press cylinder within a printing unit includes the steps of: applying a liquid, water-based washing agent, containing at least 60% water and the rest at least surfactants, onto the surface to be cleaned within the printing unit; dissolving contaminations from the surface to be cleaned within the printing unit with the help of the washing agent and a cleaning device; and removing the dissolved contaminations from the surface to be cleaned within the printing unit, at least with the help of the cleaning device.

Abstract: A device and method for automatically generating a production data set for an order to be printed in a printing facility is disclosed. Job data of an order to be printed and production possibilities of at least one processing device of the printing facility are received at an imposition module. The production data set for the order to be printed is automatically generated by the imposition module based on the job data and the production possibilities.

Abstract: A method for checking intermediate, part or end products during the production process without using marks is disclosed. The print image of the intermediate, part or end product produced on a digital printing press is scanned at least after a predetermined production step in order to subsequently compare the scanned print image with stored product data. Based on the comparison, the check of the previous processing steps and/or the calculation of the subsequent control actions for the order allocated to the intermediate, part or end product and the control actions by the production device are carried out.

Abstract: A folding roller for use in a folding device for folding a fold is disclosed. At the folding device a substrate to be folded is pushed into an inlet roller nip of folding rollers rotating in opposite directions by a folding knife for forming a fold. The folded-away substrate is transferred from the folding rollers to a belt line guided about the folding rollers and consisting of transport belts for the purpose of onward transporting the folded product. The folding roller in the regions in axial extension in which at least one transport belt at least partially wraps the folding roller includes at least one rubber-elastic insert.

Abstract: A method for producing a print product with an access code in a reel-fed rotary printing press is disclosed. The access code is printed in a code region on a first sheet of the print product where the access code is to be particularly well protected against illegitimate extraction or viewing by third parties. Furthermore, the buyer of such a print product with an access code is to be able to particularly easily detect if attempts were made by third parties to view this access code. For this purpose, the code region is covered by a viewing safeguard in such a manner that the viewing safeguard can only be irreparably removed.

Abstract: A method for the control or regulation of a production process in a print form-variable production device is disclosed, where the production process includes one or multiple orders and where for each of these orders corresponding product data are stored in a storage device. In an embodiment, the method includes the following steps: a. scanning a print image by a scanning device of at least one part of a substrate to produce a scanned print image; b. comparing the scanned print image with the product data stored for each of the orders and assigning an associated order and associated product data of the associated order to the scanned print image based on the comparing; c. determining subsequent control actions from the associated product data; and d. executing the subsequent control actions by the production device. A device is also disclosed to carry out the method.

Abstract: A method and a device for slitting a substrate web in a printing press by a slitting device are disclosed. The method and device includes a number of cutting knives, which are displaceably arranged transversely to the web running direction, and are able to react as quickly and exactly as possible to changes of the substrate web. To this end, printing parameters of the substrate web are measured and at least one of the cutting knives is transferred into a target position, where the target position is determined based on the measured printing parameters.

Abstract: A method for producing an endless transport belt for guiding substrates during the printing operation of a printing press is disclosed. The ends of a transport belt are welded together. The transport belt is ground, after one or multiple welding operations without or with the addition of material, to a nominal thickness that is smaller than or equal to the minimal thickness of the transport belt.

Abstract: A device for forming book blocks is disclosed. The device includes a first conveying device which accepts signatures printed in a printing press located upstream. The device further includes at least one signature switch assigned to the first conveying device, multiple second conveying devices, and multiple book block formers, where each second conveying device is assigned a book block former and where each book block former can be supplied with signatures belonging to the same book block dependent on a position of the or each signature switch. The device further includes multiple placers, where each book block former is assigned a placer which accepts the book blocks formed in the respective book block former, and a third conveying device, onto which the book blocks can be placed with the help of the placers and which feeds the book blocks to a delivery device.

Abstract: A printing press with at least one gripperless printing unit of a reel-fed printing press, through which a substrate to be printed can be transported in the horizontal direction by a transport device. A dimensionally stable and relatively stiff piece good, which during the transport and printing does not adapt to cylinder contours of the printing units, can be transported through the or each gripperless printing unit by the transport device. The printing press further includes a feeder, which keeps the piece good to be printed ready and via which the piece good to be printed can be circumference register-precisely and page register-precisely placed on the transport device for the subsequent printing in the printing units.

Abstract: A method for printing on a substrate is disclosed. In an embodiment of the method, the method includes printing a small print control mark of a printed color in a print zone of the substrate and printing a large print control mark of the printed color in the print zone of the substrate. A measurement value of the small print control mark and a measurement value of the large print control mark is detected by a sensor. A deviation between the measurement value of the small print control mark and the measurement value of the large print control mark is determined and an actual value of a print parameter of the printed color is corrected based on the deviation.