Abstract: A method of bonding printed circuit sheets to one another, each of the printed circuit sheets having a pattern of electrically conductive tracks, and the bonding being carried out by applying an adhesive to one of the sheets in a connection zone where the tracks on the one sheet are to be connected to corresponding tracks on the other sheet, superposing the sheets in the connection zone such that the adhesive is sandwiched between the sheets, and aligning the sheets such that corresponding tracks on the two sheets are aligned with one another. The method includes a preparatory step of forming extra tracks on the two sheets such that, in the alignment and compression steps, the extra tracks are brought into engagement with one another and constitute a barrier for the adhesive.

Abstract: A sheet conveying system comprising a first conveyor and a second conveyor arranged downstream of the first conveyor in a transport direction for taking-over a sheet from the first conveyor, the first conveyor having a belt that is driven to move over a stationary attraction mechanism, the attraction mechanism being arranged to exert, onto a sheet conveyed on the first conveyor, an attraction force that is proportional to an area of coverage of the sheet on the attraction mechanism, characterized in that the attraction mechanism is arranged to attract the sheet with a larger force per area in a downstream zone of the first conveyor than in an upstream zone thereof.

Abstract: A method for controlling an inkjet printer is provided. The printer comprises a reciprocating print head that applies a curable ink on a substrate in an at least two-pass print process. A print mask is applied to determine which dot positions are addressed in a pass of the print head. The ink is positionally fixed in a fixing step directly after application and cured in a curing step on a part of the substrate where the application of ink is completed. The level of fixing is adjustable and an amount of clustering of pixels in the print mask related to a print mode, associated with the level of fixing, is varied in dependence on the level of fixing.

Abstract: A method of operating a droplet ejection device including an ejection unit arranged to eject droplets of a liquid and including a nozzle formed in a nozzle face, a liquid duct connected to the nozzle, and an electro-mechanical transducer arranged to create an acoustic pressure wave in the liquid in the duct, includes detecting low-viscosity liquid on the nozzle face by analyzing a signal obtained from the transducer.

Abstract: An ink supply system for a print bar of an inkjet printing device comprises two supply lines that travel along the longitudinal axis of the print bar and direct ink with opposite flow direction. The print heads of the print bar are respectively connected to both supply lines via a connecting line in order to supply ink to said print heads. A uniform mean hydraulic pressure is produced in all print heads via the opposite flow directions in the two supply lines.

Abstract: Thermal energy is supplied to a fluid mixture on a substrate that has a first component, for example water, and a second component, for example cosolvent, such that the proportion of the second component in the fluid mixture is increased at relatively high temperatures of the fluid mixture. It may thus be reliably produced that an optimally small quantity of the second component is located on the surface of the substrate following the drying process.

Abstract: A fluid for application onto a substrate is provided in a cavity of a hollow cylindrical application roller that has porous roller wall. Before reaching the transfer point to the substrate, fluid is regionally selectively pushed back away from the outer shell surface of the application roller, into the porous roller wall, by a knockback pressure, in order to regionally selectively produce the effect that, at the transfer point, fluid is located at the outer shell surface of the application roller or no fluid is located at the outer shell surface of the application roller. A regionally selective application of fluid onto a substrate may thus be efficiently produced.

Abstract: The negative pressure in the ink chamber of a nozzle of a print head is reduced in a printing interruption phase, in particular upon transport of the print head from a cleaning position into a printing position, relative to the negative pressure in a printing phase. The leaking of ink during the printing interruption phase may thus be reliably avoided, and the print quality may be increased.

Abstract: In an inkjet printing system, an actuator that is associated with a nozzle of a printing element is controlled in a normal operating mode, given a non-defective nozzle, to implement at least one standard refresh measure if the time period in which the actuator is not activated to output an ink droplet exceeds a preset limit value. After detection of a defective nozzle, the actuator is controlled in an error operating mode to implement at least one intensified refresh measure.

Abstract: A document processing system includes a print controller and a user interface for displaying production routes for a print job leading to an end product due to printing by at least one printer and finishing by at least one finisher. The user interface is configured to receive a user selection of a document type of the print job and at least one selection criterion for the print job. The print controller is configured to determine production routes based on simulation of the print job by device models for the at least one printer and the at least one finisher, and to select from the determined production routes a production route with smart settings which corresponds to the document type and fulfills the selection criterion.

Abstract: A media roll holder assembly a web-based printing system comprises a support for rotatably supporting the roll in an operative position, a holding element for rotatably holding the roll on the support, and a pivotable arm on which the holding element is provided. The pivotable arm is formed and positioned to position the holding element on the roll, such that a lifting force for lifting the roll from the support results in a holding force on the holding element in the first angular direction for holding the roll in the operative position on the support. The roll is then rotatably secured in its operative without excess angular forces acting on the roll. As the rotation of the roll is substantially unimpeded, the medium may be transported with great precision, resulting in high quality printing.

Abstract: A method of capping a nozzle face of an ink jet print head comprises the step of ejecting an amount of ink from a nozzle opening within the nozzle face, so as to form an ink body covering the nozzle opening, adheringly suspended from a surrounding portion of the nozzle face.

Abstract: A device for supplying a print bar (10) with ink has a distributor tank (16) that is connected with all print heads (12). Degassed and tempered ink is supplied to the distributor tank (16). In the distributor tank (16), a ring line (36) extends through which flows ink at the nominal temperature, and the ink (19) in the distributor tank (16) is thereby tempered. In addition to this, the distributor tank (16) has a supply line (38) via which fresh ink may be fed into the distributor tank (16). A changeover switch (42) switches between the two lines depending on the negative pressure in the distributor tank (16).

Abstract: A controller for a multi-roll printer, a printing system with such a printer and such a controller and a method for controlling such a printer are provided. A user may assign print jobs directly to one of the rolls by assigning graphical representations the print jobs to regions corresponding to those rolls in a GUI. The user may also assign print jobs to a region in the GUI that is not associated with any particular roll, as a result of which each image of said print job is individually assigned automatically to at least one of the rolls.

Abstract: A test image having a plurality of line rows is printed. The individual lines of the line rows are printed by different nozzles of a print head. The lines are thereby associated with the different line rows such that the lines of two directly adjacent line rows are not printed by all respective nozzles from two nozzle rows of the print head that are connected with one another via a common ink supply channel. Crosstalk between the nozzle rows, and print image artifacts of the test image that are linked therewith, may thus be advantageously avoided.

Abstract: In a method for fixing a print image on a recording medium, data is determined for controlling one or more radiation sources to fix the print image. The data can be determined based on a deformation model of the recording medium such that a deformation of the recording medium is reduced or minimized.

Abstract: A system including an ink bottle closure including a first closure member configured to be fixed to an ink bottle, the first closure member including a seal, arranged to be located over an outlet opening in a neck of the bottle and a second closure member attached to the first closure member and movable relative to the first closure member between a closed position, in which the second closure member covers the seal, and an open position in which the seal is exposed to be pierced or ruptured for dispensing ink from the bottle through the outlet opening, wherein the second closure member is movable in translation, relative to the first closure member between the closed position and the open position in a direction substantially perpendicular to a central or longitudinal axis of the bottle and a dispensing device for opening an ink bottle closure, including an adapter having a receiving area for receiving the ink bottle closure of an ink re-fill bottle with the bottle in an inverted orientation, a mechanism for

Abstract: In a printing method, a coating substance is applied onto the recording medium depending on spatially resolved temperature data with regard to the temperature of the surface of a recording medium to be printed to in preparation for printing of a print image. The quality of the print image may thus be increased, in particular given the presence of an inhomogeneous curve of the temperature of the recording medium.

Abstract: A method for printing a print job, the print job including a plurality of plots to be printed on a print media, includes receiving, by a reprographic printing system, the print job; causing printing the plots of the print job subsequently on the print media and tracking the completion of a plot in the print job while printing; and after receiving an interruption to the print job, terminating printing the plots of the print job and subsequently determining a print job related reference that is indicative for the interrupted print job, and printing a fiducial on the print media, the fiducial including an identifier uniquely identifying the interrupted print job, thereby defining a print job starting point for resuming the interrupted print job.

Abstract: A method of editing a print document includes an impositioning step for determining positions of print objects in a document to be printed, the positions being determined in view of a later step of finishing the document after printing. The method includes providing document data on a client computer; sending document data to a cloud computer and requesting the cloud computer to perform the impositioning step; and sending the impositioned document data to a printer for printing the document. The method also includes splitting the document data into contents data and box information data, the box information data specifying shapes and dimensions and intended positions of the print objects; sending only the box information data to the cloud computer; and when the cloud computer has performed the impositioning step on the box information data, merging the impositioned box information data with the contents data either in the client computer or at the printer.