Abstract: Printing systems and methods for conditioning a recording medium are described. For example, to condition the recording medium, a property of a coating substance to be applied to the recording medium, such as the composition of the coating substance can be adjusted. Further, the quantity of the coating substance to be applied to the recording medium can be adjusted. The quality of a printed image created by the printing system can be improved by adjusting the property and/or the quantity of the coating substance.

Abstract: Methods and devices for digital printing to a recording medium are described. The printing can use a liquid print ink that includes a flammable carrier. Print control data can be generated from print data and the print control data can activate one or more print groups to print to the recording medium. An areal coverage can be determined based on the print control data. The areal coverage corresponds to a quantity of color applied onto the recording medium. The determined areal coverage can be limited to a predetermined maximum average areal coverage within a predetermined averaging area. The predetermined maximum average areal coverage can be less than a maximum theoretical areal coverage. The recording medium can be heated in, for example, a heating chamber. The predetermined averaging area can be smaller than an area of the recording medium located within the heating chamber.

Abstract: A method and device for digital printing to a recording medium with liquid print color is described. In a method for digital printing, a print image defined by print data is printed onto the recording medium via application of the liquid print color. After the application of the liquid print color onto the recording medium, the recording medium can be heated to vaporize the carrier fluid. Upon heating, air is supplied that mixes with the vapor to form a combustible gas. The combustible gas can be supplied to a combustion chamber and converted into waste gas. In a method for digital printing, an areal coverage can be determined. The areal coverage describes a quantity of color applied onto the recording medium by the carrier fluid. Further, the air supply can be proportionally controlled to the determined areal coverage.

Abstract: In a method or system to control a temperature of a substrate to be printed to and which exhibits said temperature during a traversal of a printing system, specifically selecting or controlling a fluid temperature of a liquid fluid to be applied onto the substrate to specifically influence the substrate temperature, the fluid being applied onto the substrate before the substrate is printed to. At least one of the fluid temperature and a quantity of the fluid applied onto the substrate per time unit at least depending on at least one of a first measurement value for a temperature of the substrate before the application of the fluid and a second measurement value for a surface temperature of the substrate after the application of the fluid.

Abstract: In a method to adjust print quality of print images in an electrophoretic digital printer with at least one print group, the print group generates charge images of the print images. The charge images are developed with a developer station into toner images using liquid developer having carrier fluid and toner. The toner images are transfer-printed onto a carrier medium in a transfer station. A first control marking is generated on the recording medium with elements of the first control marking being aligned transverse to a printing direction. A shape of the elements of the first control marking is measured to generate a first measurement signal. The first measurement signal is compared with a predetermined nominal value, and given a difference, an adjustment signal is generated via which an amount of the carrier fluid in the liquid developer is modified so that the first measurement signal approaches the predetermined nominal value.

Abstract: In a method to determine a negative effect on a surface of an image carrier of a print group, a reflection spectrum is determined of a region of the surface of the image carrier, the reflection spectrum indicating an intensity of light for different wavelengths. The light is reflected from the region of the surface of the image carrier. A reference spectrum is determined for the region of the surface of the image carrier. The reflection spectrum is then compared with the reference spectrum. Depending on the comparison, the determination is made whether a negative effect is present at the region of the surface of the image carrier.

Abstract: In a method or a transfer station for a digital printer, liquid developer with toner particles can be directed towards a first side of a recording medium and onto the first side of the recording medium at a transfer point. A transfer roller can be configured to direct the liquid developer towards the recording medium. The toner particles can have a first polarity and the recording medium can move past the transfer roller along a transport direction. A layer of charged particles can be applied from a second side of the recording medium by a surface charging station. The surface charging station can be arranged before the transfer point in the transport direction. The second side of the recording medium can be opposite the first side. The charged particles can have a second polarity that is opposite the first polarity.

Abstract: A method for printing to a recording medium having at least one ink or at least one liquid toner whose liquid component includes a plurality of fluids, wherein after the printing, the method includes heat treating the recording medium in a range from 40 to 80° C.; and fixing the recording medium at a temperature of at least 90° C.

Abstract: In a method for operating a control panel for a production system in particular for printing system, a control system is provided comprising a main computer. The main computer is connected via a data connection with one or more client computers on which a browser is executed. The control panel for the production system is displayed in the respective browser. Via an operation of a user at the control panel, an action request is triggered at a web user interface with which an action is requested at the main computer. Upon every action request, the web user interface checks according to predetermined rules whether this action is allowed, and blocks the action if it is not allowed.

Abstract: In a method or device to determine a lift state of a recording medium from a surface of a heating saddle of an inkjet printing system, the recording medium being directed past the surface for drying, an index for power consumption of the heating saddle is determined including a determination of a time curve of the electrical power consumed by the heating saddle. The power consumption of the heating saddle depends on a desired temperature of the heating saddle. The lift state of the recording medium is determined based on the index for the power consumption.

Abstract: In a method to configure a controller for a production system including multiple components that respectively including a client computer connected via data connections with a main computer, the components connected to the data network are scanned to obtain scanned information. A network map is created using the scanned information. The network map can include the main computer, the data connections and the components. The controller can be configured according to specifications of the created network map. Monitoring routines that are specific to the respective components can be executed. Upon the scanning of the components, operating system functions at the client computers are exclusively called so that software modules specifically for the scanning must not be present at the client computers.

Abstract: In a printing apparatus a print bar assembly is provided with multiple print bars, a designed space being present between the print bars and a recording medium. A climate control has a feed channel running parallel to a length of the recording medium. Openings lead from the feed channel to the print bars to introduce a conditioned gas flow of predetermined temperature and moisture to the print bars such that a laminar gas flow is generated in the designed space between nozzle plates of the print bars and the recording medium. A barrier is arranged at an intake of the print bar assembly which blocks an air boundary layer entrained with the moving recording medium before the print bar assembly.

Abstract: In a method to monitor a production system using a monitoring system, status data of components and/or component groups of the production system is received. The components/component groups can have different monitoring program modules. The status data is associated as parameter values with respective defined parameters of a parameter set of the monitoring system. The different status data is associated with a same parameter of the parameter set. The parameter values are checked, with predetermined deviations being assessed as errors. An error is detected if different parameter values are transmitted for a same parameter and at least one of the different parameter values exhibits a predetermined deviation that is assessed as an error. An error priority is associated for error correction with a detected error according to predetermined criteria. The error priority can describe an influence the error has on a production process of the production system.

Abstract: In a method or a transfer station for a digital printer, liquid developer with toner particles can be directed towards a first side of a recording medium and onto the first side of the recording medium at a transfer point. A transfer roller can be configured to direct the liquid developer towards the recording medium. The toner particles can have a first polarity and the recording medium can move past the transfer roller along a transport direction. A layer of charged particles can be applied from a second side of the recording medium by a surface charging station. The surface charging station can be arranged before the transfer point in the transport direction. The second side of the recording medium can be opposite the first side. The charged particles can have a second polarity that is opposite the first polarity.

Abstract: In a method to operate a printer or copier to print to a printing substrate, or in such a printer or copier, toner concentrate is extracted from a toner concentrate reservoir and carrier fluid is extracted from a carrier fluid reservoir. The extracted toner concentrate and carrier fluid are supplied to a mixer where mixing occurs to form a developer mixture. The developer mixture is applied to a developer roller with aid of an electrical field. Given an exchange of least one of the toner concentration reservoir and the carrier fluid reservoir, a strength of the electrical field is modified such that a predetermined desired inking of the printing substrate is maintained even given a change of a toner concentration in the developer mixture due to the exchange.

Abstract: In a method or print job administrator to determine status of a print job, a print job is printed on a recording medium. An ID of a transport on which the recording medium is located is determined, the recording medium being printed to according to the print job. The transport has a positioner. A position of the transport is determined using the positioner, the positioner comprising an active RFID transponder arranged at the transport and supplied with power. The determining of the position of transport includes receipt of position data with regard to the position of the transport from a plurality of distributed RFID readers. The determining of the position of the transport occurs by using the position data of the plurality of distributed RFID readers.

Abstract: Described are a system and a method to activate an actuator for a first nozzle of a plurality of nozzles of an inkjet printing system. The inkjet printer system can be configured to generate triggers with a frequency for printing of a respective line of pixels by the plurality of nozzles. The frequency of the triggers can depend on a print speed of the inkjet printing system, and the print speed can be modifiable. A time period between two successive triggers can correspond to a total duration available to the first nozzle for an ink firing for printing of a pixel of the line. An indicator for a current print speed of the inkjet printing system can be determined. Depending on the indicator for the current print speed, a waveform for activation of an actuator can be defined to produce an ink firing for printing of the pixel of the line on the recording medium by the first nozzle within the total duration available at the current print speed.

Abstract: In a method to operate an ink printing apparatus, and in an ink printing apparatus, a recording medium is directed through a printer. The recording medium is subsequently supplied to a dryer having at least one heating saddle and a drying channel arranged at the heating saddle. In the dryer the recording medium is directed past the heating saddle. A negative pressure is generated in the drying channel via an air exhaust arranged at one end of the drying channel. In the printing operation, in a region of the heating saddle a negative pressure is exerted on the recording medium in a direction of the heating saddle so that the heating saddle is then in contact with the recording medium in order to dry the ink on the recording medium. Upon interruption of the printing operation with braking of the recording medium, the negative pressure in the direction of the heating saddle is deactivated at a beginning of the braking.

Abstract: In a method for operating a control panel for a production system, as well as a control system for a production system, in particular for a printing system, the production system control system comprises a main computer. The main computer is connected via a data connection with one or more client computers on which a browser is executed. The control panel for the production system is displayed in the respective browser. With the control panel executed in the browser, a ticket request may be made to a web user interface. Given the ticket request, the web user interface checks whether it is authorized to assign a session ticket to a browser, and whether the session ticket is available. If both are the case, then the web user interface assigns the session ticket to the browser making the ticket request.

Abstract: In a method for operating a control panel for a production system, as well as a control system for a production system wherein the production system has a control system that comprises a main computer, the main computer is connected via a data connection with one or more client computers on which a browser is executed. The control panel for the production system is displayed in the respective browser, wherein the control panel has one or more data objects that are respectively self-contained elements of the control panel and that serve for the display of a specific value of a respective parameter. A reference table with which a relation is established between each data object and a data source for the specific value of the respective parameter presented in the data object is stored at the main computer. Given a change to the specific value of the data source the main computer transmits only this changed specific value to the corresponding data object.