A method controls the color in a printing press, which includes at least one printing station printing a respective color design. The method includes the procedures of determining a control factor to color model, printing a design on a web and acquiring color characteristics corresponding to the printed design on the web. The method further includes the procedures of determining the color quality of the printed color design and determining a required change to at least one control factor when a correction to the color characteristics of the printed design is required. The change to at least one control factor is determined by determining the at least one control factor with respective color related information, which results in a reference color characteristic, according to the control factor to color model. The method returns to the procedure of printing when a correction is not required.

A print quality examination device is provided in a printing machine (1) provided with a printing unit (3) that performs printing on a mirror-reflection member (5a) of a sheet (5) to which the mirror-reflection member (5a) is added. The print quality examination device of the printing machine is provided with an examination camera (18a) that images a picture printed on the sheet (5), a light source (18h) that irradiates the sheet (5) with light, and a print quality examination unit (18g) that examines the quality of the picture printed by the printing unit (3) based on image data imaged by the examination camera (18a). The examination camera (18a) or the light source (18h) is configured to be movably supported on an arc about a detection point (P) imaged by the examination camera (18a) for the sheet (5).

A method for operating a system for a multiple dynamic job sequence includes providing a packet of information in order to process different production runs. An additional packet of information is used to inquire about respective states during the manufacturing process so as to enable interventions to be made based on the jobs being not processed as originally. An additional packet of information is received, from which information regarding physical detection of a printing and processing situation is taken such that each downstream processing machine is able to identify the job and a job end. By identifying the job and the job end, an additional packet of information is forwarded to the plant controller, the plant controller detecting an actual state of the manufacturing process therefrom such that new or adapted job sequences and job ends are directly defined during the manufacturing process.

Method for generating a test-set for inspection of a design being printed by a printing-press, each color-unit in the printing-press prints a respective color. The design is composed of original-layers. Inspection includes determining the origin of at least one defect in the printed-design. The method includes the procedures of generating defective-layer or layers of the design, by introducing at least one selected defect to at least one selected original-layer, in a selected location or locations and combining layers using a trained-synthesis-neural-network. The layers include the defective-layer or layers and remaining ones of the original-layers. The trained-synthesis-neural-network provides a plurality of features respective of each pixel. The method also includes the procedure of generating the test-set from the output of the synthesis-neural-network. The test-set includes at least one synthesized-test-image. The synthesized-test-image includes at least one synthesized-defect at the selected location. The test-set is employed to determine the origin of the defect.

A method is provided for configuring a drying device in a printing machine, in particular in a value document printing machine. The printing machine has at least one printing unit which comprises an imaging cylinder having a plurality of imaging printing elements or groups of imaging printing elements which are arranged in rows and columns on its circumference. A drying device has a dryer, by which print material, passing through the dryer, is subject to radiation. The drying device is configured for ongoing or upcoming production in such a way that the print material passing through the dryer, in order to be dried, is subjected to radiation in a plurality of tracks spaced from each other by non-irradiated tracks according to the same switch-on and switch-off sequence extending over cycle length. The configuration takes place with regard to one of a lateral position and a width of the tracks to be subject to two radiation by the dryer using product-related data or information regarding one of the number and the size and the position of value items to be printed next to each other on the print material portion and one of using data which comes from a device for image capture and an evaluation comprised by the printing machine or provided in parallel to such a device.

A gravure coater test apparatus includes a gravure roll and a backup roll which are circumscribed to each other, a motor which drives the gravure roll partially submerged in a water-based pressure-sensitive adhesive for coating, a controller which adjusts the rotational speed of the motor, a doctor blade which is selected from a plurality of types to scrape the water-based pressure-sensitive adhesive from the surface of the gravure roll being rotated, and an infrared analyzer which allows at least one of the type of the water-based pressure-sensitive adhesive corresponding to the selected doctor blade, the uniformity of the coating surface, and the amount of the coated water-based pressure-sensitive adhesive to be confirmed.

The invention relates to a rotary printing press (10) for printing substrates (18), comprising a substrate transport system (12) which comprises a winder station (14) and an unwinder station (16) configured to transport a substrate (18) during a printing process along a printing handling path (19) from the unwinder station (16) to the winder station (14), wherein the rotary printing press (10) further comprises at least one cleaning unit (46) which is assigned to the printing handling path (19) and adapted to remove ink from the front side of the substrate (18). Further, the invention relates to a method for cleaning a substrate (18).

A printing machine for printing on a printing substrate web includes a plurality of inline flexographic printing units which are disposed in a plane accessible to an operator of the machine. Each one of the two flexographic printing units of a respective duplex printing station includes a respective impression cylinder and a dryer disposed between the two impression cylinders along a path of web travel of the web of printing substrate. A method of operating the printing machine is also provided.

Method for generating a test-set for inspection of a design being printed by a printing-press, each color-unit in the printing-press prints a respective color. The design is composed of original-layers. Inspection includes determining the origin of at least one defect in the printed-design. The method includes the procedures of generating defective-layer or layers of the design, by introducing at least one selected defect to at least one selected original-layer, in a selected location or locations and combining layers using a trained-synthesis-neural-network. The layers include the defective-layer or layers and remaining ones of the original-layers. The trained-synthesis-neural-network provides a plurality of features respective of each pixel. The method also includes the procedure of generating the test-set from the output of the synthesis-neural-network. The test-set includes at least one synthesized-test-image. The synthesized-test-image includes at least one synthesized-defect at the selected location. The test-set is employed to determine the origin of the defect.

A printing machine includes: a printing plate attached to a plate cylinder; a blanket configured to transfer ink from the printing plate to a printed material; a blanket wheel configured to rotate the blanket; and at least one of a distance sensor or a temperature sensor. The distance sensor is provided in the blanket wheel and configured to measure a distance of the printing plate to the blanket wheel, and the temperature sensor is provided in the blanket wheel and configured to measure a temperature of the printing plate.