Abstract: An electronic beacon is used in a print system connected to an at least partially wireless network system. The electronic beacon is linkable to the print job via the network system, placeable on top of, attachable to or insertable in a physical intermediate product or a physical end product resulting from the print job. The electronic beacon includes a switch for activating and deactivating the electronic beacon, a memory for storing a link to the print job, and a signaling device for giving an electronic signal when the print job linked to the electronic beacon is selected on a mobile device connected to the network system.

Abstract: A printing system is provided with a secure boot program and a detachable memory device with an installable secure boot program. Upon switching on the printer controller, the secure boot program will check if a detachable memory device containing the secure boot program is plugged in. If this is the case, the controller will boot from the detachable memory device, otherwise the controller will invoke the printer control program to bring the printer in its normal operational mode.

Abstract: Disclosed is a hot melt ink composition containing a substantially non-aqueous carrier composition; at least one dye which comprises at least one salt of the anthrapyridone series; and an organic sulfonic acid compound. Also disclosed is a method of preparing the hot melt ink composition.

Abstract: A method for controlling a temperature of a jetting device, the jetting device being configured to jet droplets of a fluid at a high temperature, the fluid comprising an electrically conductive fluid, wherein at least a part of the fluid is positioned in a magnetic field, includes heating the jetting device to an operating temperature, being defined as the temperature suitable for jetting droplets, using a heat jetting droplets by providing an electrical actuation current in the part of the fluid positioned in the magnetic field, thereby generating a force in the conductive fluid; determining upcoming jetting conditions, the upcoming jetting conditions being defined as the jetting conditions corresponding to droplets to be jetted at a time (t1) which is later than the present time (t0); determining settings for the heat based on the determined upcoming jetting conditions; controlling the heating of the jetting device using the heat in accordance with the determined settings.

Abstract: A method for accurately controlling a medium displacement in an inkjet printer is provided by accurately determining a relation between an actuation signal for a drive motor and a medium displacement. The method comprises the steps of establishing a set of calibration actuation signals each corresponding to a nominal calibration step and determining an achieved medium displacement step for each calibration actuation signal in the set. The set comprises at least one calibration actuation signal for actuating the drive motor to make one full revolution and at least one calibration actuation signal for actuating the drive motor to make a rotation larger than one full revolution, but smaller than two full revolutions. Both a cyclic deviation and a local deviation of the nominal displacement relation is determined based on a finite series of basis functions.

Abstract: A droplet ejection apparatus includes: a number of droplet ejection units each of which has a nozzle connected to a liquid chamber and an actuator for expelling droplets of a process liquid; a cleaning station; and a control system arranged to control a relative movement of the droplet ejection units and the cleaning station and to immerse the nozzles into a cleaning liquid, wherein a heater is provided for heating the droplet ejection units, and the control system is adapted to activate the heater when the droplet ejection units and the cleaning station are moved or have been moved towards one another, and to deactivate the heater to allow the droplet ejection units to cool down while the nozzles are immersed in the cleaning liquid.

Abstract: A method is provided for processing a relief raster image, comprising customary color channels for indicating a color of each pixel and a height channel for indicating a height of each pixel into several pass images that are printed using a printer with several colorants including a white colorant. For each pixel a relief part, a white part and a skin part are discriminated in order to combine the demands for height and color variation across the surface of the image. The skin part comprises pixels for which a colorant composition based on the color channels of the relief raster image is established. In order to print a color in the skin part that is independent of a height of the pixel, the relief part comprises an arbitrary colorant composition and the white part comprises mainly white colorant.

Abstract: The invention relates to a method for generating a print of a digital image comprising image pixels by a printer comprising a print head and radiation means for curing recording material by irradiation, the recording material to be ejected by the print head on a substrate, wherein the print may have palpable differences between a height of various pixels of the print, the method comprising the steps of providing the digital image comprising an elevation channel for indicating an elevation of each image pixel of the digital image, deriving from the elevation channel of the digital image pixels in the digital image which may be expected to receive such a low amount of radiation that recording material is insufficiently cured, for each derived image pixel adapting at least one elevation channel value of the derived image pixel or image pixels adjacent to the derived image pixel by such an amount that the recording material is expected to be sufficiently cured, and printing the digital image with the adapted elev

Abstract: A print head unit comprises a print head for ejecting droplets of a marking material; an electronic print head controller; and a coupling assembly for mechanically coupling the print head and the print head controller; wherein the coupling assembly provides a first coupling state and a second coupling state, wherein in the first coupling state, the print head and the print head controller are fixed relative to each other; in the second coupling state, the print head and the print head controller are enabled to move relative to each other within a limited range. The print head unit can be easily handled in the first coupling state, while in the second coupling state the print head may be mounted in a moving carriage without the print head controller affecting the position and rotation of the print head.

Abstract: A sheet transport assembly is provided for transporting a sheet along a process unit configured for applying a process to the sheet. The sheet transport assembly comprises a conveying unit comprising a transport belt, which transport belt comprises air permeable openings, the sheet being placed with a contact side on a support surface of the transport belt; a separating unit for separating the sheet from the transport belt, the separating unit comprising a blowing unit connected to an air supply source and arranged adjacent the transport belt to direct a detach air flow through said air permeable openings of the transport belt in a detach area to lift the sheet from the transport belt; and a control unit configured for controlling the units of the sheet transport assembly. The separating unit further comprises a sheet attraction unit arranged for attracting the sheet to the support surface of the transport belt in two attraction areas.

Abstract: A method for generating a relief print on a substantially flat substrate, wherein palpable differences exist between a height of various parts of the relief print, by a printer configured to print a relief print in a number of passes includes defining a rasterized relief image, comprising customary color channels for indicating a color of each pixel and a height channel for indicating a height of each pixel of the rasterized relief image, determining a low spatial frequency height component in the height value of a pixel of the rasterized relief image, subtracting the determined low spatial frequency height component from the relative height value of a pixel of the rasterized relief image, resulting in a relative reduced height value, and printing the rasterized relief image by using the relative reduced height value. A printing system is configured to execute the method.

Abstract: A cartridge for holding ink pellets is provided. The cartridge comprises a first part and a second part. The first part comprises a first body, which first body comprises an exit adapted for releasing an ink pellet from the cartridge, and the first part comprising a separating unit, said separating unit being adapted for separating and releasing a single ink pellet and transporting said single ink pellet to said exit. The second part is configured for holding said ink pellets and comprises a second body being adapted for a sliding movement with respect to said first part in order to adjust a volume of the cartridge. The cartridge of the present invention improves transportation of said cartridge without reducing a capacity of the cartridge for holding a plurality of ink pellets.

Abstract: A method of estimating an amount of an unconsumed part of a recording material wrapped on a core of a roll is implemented as an application program for an electronic device having a camera. A storage device stores reference data about the roll and the recording material in an unconsumed state. The method includes taking a picture of the recording material and the core with a camera, deriving from the picture characteristics of a first and second number of pixels representing the core and the unconsumed part of the recording material, respectively, requesting from a user an identification of the roll and the recording material, receiving the identification, matching the identification with the reference data, and calculating the amount of the unconsumed part of the recording material by means of the matched reference data and the characteristics of the first and second numbers of pixels.

Abstract: The invention pertains to a print media discharge unit, comprising a print media transport path along which in operation a sheet of print media is transported in a transport direction, the print media transport path is defined by a first electrically isolating print media guide and a second electrically isolating print media guide, the print media discharge unit further comprising an electrically grounded electrically conductive discharge element extending through an opening in at least one of said first and second electrically isolating print media guides into the print media transport path, wherein at least one of said first and second electrically isolating print media guide comprise a plurality of guidance ribs aligned substantially in the transport direction at an angle with respect to the transport direction.

Abstract: A method for applying an image onto a receiving medium uses an ultraviolet curable phase change ink. The method includes the steps of pre-curing the ultraviolet curable ink and post-curing the ultraviolet curable ink. An ink jet apparatus is configured to perform the above mentioned method.

Abstract: The invention relates to a method for printing print jobs on media by means of a printer system, the printer system comprising a control unit and a digital storage, the media comprising an identification unit for identifying locations of image data and other related information in the digital storage, the identification unit wireless connected to the control unit, the method comprises the steps of receiving a print job by the control unit, printing image data of the print job on the media, storing the image data of the print job on a location in the digital storage, and storing a link to the location on the identification unit after printing the image data on the media. The invention also relates to a printing system suitable for applying the invented method.

Abstract: A method for converting a full color image to a monochrome image is provided, wherein the color values of pixels are decomposed in a luminance and a chrominance component. Both components are converted to a grayscale value representing an intensity of a pixel. The luminance grayscale value is in a limited range close to a light end of the available grayscale. The chrominance grayscale value is closer to the dark end of the available grayscale when the chrominance component of the color value is larger. The darkest value of the two converted values is selected for a corresponding pixel. The effect of this conversion is that colored pixels are darker than colorless pixels, which is useful to highlight parts of a monochrome image that stand out because of their color in a full color image. It is particularly useful to help color blind people recognize colored parts of an image.

Abstract: A method is provided for controlling the ejection of ink drops from an inkjet printhead. The printhead comprises an array of ink chambers with nozzles arranged for applying a row of ink dots on a receiving medium using a control signal. The method comprises the steps of labeling a nozzle as a functioning nozzle if the nozzle, upon activation by a control signal, ejects an ink drop within predefined specifications, otherwise labeling the nozzle as a failing nozzle, and distributing a control signal associated with a failing nozzle to a neighboring nozzle to maintain a local optical density, wherein said control signal associated with a failing nozzle is not distributed to a neighboring nozzle, if a neighboring nozzle of said failing nozzle is also labeled as a failing nozzle.

Abstract: A method is provided for processing a print job according to print job specifications by means of production steps on a printing system, the printing system including a plurality of production modules and a user interface, each production module performing a production step in order to deliver a resulting product of the production step. The method includes performing a production step by means of a production module of the plurality of production modules delivering the resulting product, establishing a real-life perspective image of the resulting product taking into account the print job specifications, and displaying the real-life perspective image on the user interface. A printing system is provided for carrying out the method.

Abstract: The invention relates to a heat exchange laminate for use as a heat exchange member in a heat exchange unit, comprising a base layer extending substantially planar, said base layer being bilaterally coated with an electrical conductive contact layer. The contact layer comprises a high molecular weight polyethylene and a carbon black. The invention further relates to the use of the heat exchange laminate and to a heat exchange unit and a printing system comprising such a heat exchange laminate.