Abstract: A reproduction apparatus for printing a digital image includes a control unit and a print engine. The digital image is constituted of pixels, each having assigned a pixel value. The print engine includes print elements for ejecting an amount of marking material on a receiving material according to a pixel value. The reproduction apparatus includes a detector for detecting a failing print element and the control unit includes a derivation unit for deriving, before printing of the digital image for a print element, at least one array of pixel values to be printed by at least one other print element, upon detection of a failing of the print element by the detector. A merging unit is configured to merge at least one of the at least one array of pixel values with the digital image, upon detection of a failing print element, for creating a corrected digital image.

Abstract: A method for making a color transform for an output device is provided. The color transform represents a correspondence relation between a first and a second color space. Each of the two color spaces involves a number of color channels and the color channels of the second color space control the colorants in the output device. An excess relation for the color channels of the color space associated with the output device is established and only color points in the second color space wherefor a sum of the excess values related to the color point is lower than a predetermined limit, are included in the color transform. This enables to adapt the shape of a color gamut to a behavior of the colorants and enhances the flexibility in making a color transform for various print processes.

Abstract: In an ink jet printing method, a recording medium is moved relative to a print head having a plurality of nozzles, and ink droplets are ejected from the nozzles onto the recording medium in a single pass in accordance with print data supplied to the print head. Spit pattern data is included in the print data A location of an expected ink dot ejected according to the spit pattern data is scanned, providing a scanned image, and such ink dot is searched for in the scanned image in order to determine an actual presence of the ink dot.

Abstract: A droplet ejection device comprising a flow passage, a nozzle orifice formed in a wall of the flow passage, a circulation system for circulating a liquid through the flow passage, and an actuator system for generating a pressure wave in the liquid in the flow passage, wherein an obstruction member is arranged in the flow passage in a position opposite to the nozzle orifice and projecting towards the nozzle orifice.

Abstract: A sheet retention device is provided for retaining at least one sheet. The sheet retention device comprises a sheet supporting unit for supporting at least a first portion of the sheet, a rotatable guiding unit configured to enclose a second portion of the sheet, an urging unit and a drive unit for in operation controllably rotating the rotatable guiding unit. The rotatable guiding unit comprises a passageway arranged through the rotatable guiding unit, which passageway is configured to enclose the second portion of the sheet, the passageway having an entrance portion at one side of an outer surface of the rotatable guiding unit and an exit portion at another side of an outer surface of the rotatable guiding unit. The exit portion is arranged in the passageway at an opposite end with respect to the entrance portion.

Abstract: A printer assembly is configured to be arranged on a support surface and comprises: a medium delivery station and a printing station comprising a moveably arranged element. The printer assembly extends between a first end and a second end, wherein the printer is configured to be supported on the support surface at the first end. The medium delivery station and the printing station are arranged on a line extending between the first end and the second end. The printing station is arranged closer to the first end than the medium delivery station. A direction of movement of the moveably arranged element is not parallel to said line extending between the first end and the second end.

Abstract: A method for characterizing a colour rendering reprographic apparatus for making an output colour profile comprises the steps of measuring a set of colour values, indicative of output of the colour rendering reprographic apparatus on a predetermined medium and processing these measurement data to profile data that are applicable for creating an output colour profile according to the standards of the International Colour Consortium. The processing step comprises a correction of a measured colour value with a medium compensation value that depends on the medium gray colour value at the same lightness as the measured colour value. The medium gray colour value is a value that results from the application of black colorant on the predetermined medium. The medium compensation value reduces to zero at the lightness of the predetermined medium. The effect of this processing step is that a profile is generated that gives prints that are both free of background colorant and have natural colour rendering.

Abstract: A method is provided for processing 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 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 rasterized relief image is established. In order to print a color in the skin part that is independent of a height of the pixel and independent of the colorant composition of a neighboring pixels, pass images are composed that include only neighboring pass pixels that do not disturb the color forming of a pass pixel contributing to a skin part.

Abstract: A method for manufacturing electrical and/or optical components, wherein a hot melt composition including an alkane based wax and an amorphous material as a masking material is used. The hot melt composition has a melting point of between 40° C. and 85° C. and a viscosity of between 5 and 20 mPa·s at not less than one temperature within the range of between 50° C. and 140° C. A hot melt composition includes between 40 weight % and 89.9 weight % of an alkane based wax; between 10 weight % and 50 weight % of an amorphous material; and between 0.1 weight % and 10 weight % of a phosphonium based ionic liquid. A system and a method for manufacturing electronic and/or optical components is provided, wherein after the etch processes and/or plating processes, the hot melt composition is removed from the substrate with the aid of hot water.

Abstract: A print system including a print engine for printing a receiving material, a plurality of holders, each for holding one type of receiving material and delivering said material for printing to the print engine, a receiver for receiving jobs, a job being an order containing printing information on one or more types of receiving material specified in said order, and a control system for planning jobs, wherein the jobs are placed in a print queue in a sequence of finishing, and the control system is adapted to establish: a) the types of receiving material specified for a set of different jobs in the print queue, b) a shortage of a type of receiving material if there is insufficient receiving material present in the plurality of holders in order to finish a job of the said set, c) an indication of the time when said type of receiving material is no longer present in the plurality of holders, and wherein the print system further comprises a unit for displaying an image adapted to show an operator of the print syste

Abstract: Method and apparatus for individually positioning and mounting particles on a target carrier according to a predefined pattern. In particular the particles are spheres of an electrically chargeable material with a diameter in the range of 10 micrometer up to one millimeter and are electrically conductive.

Abstract: A method creates a copy image from a hardcopy original on a reproduction system including a display. The method includes displaying a predetermined digital image according to image parameters set with initial image parameter values, reading out image parameter values entered by a user for replacing the initial image parameter values and characterizing the hardcopy original, displaying the predetermined digital image in accordance with the read-out image parameter values, determining a first conversion of image parameters mapping the initial image parameter values to the read-out image parameter values, determining a second conversion of image parameters by inverting the first conversion, scanning the hardcopy original resulting in scan-bound image parameter values, applying the second conversion to the scan-bound image parameter values resulting in converted image parameter values, and creating the copy image by taking into account the converted image parameter values.

Abstract: A recording substrate treatment apparatus, includes a heating device for directly heating a recording substrate, a condenser for condensing liquid from air from surroundings of a recording substrate, and an energy transfer system arranged for transferring energy from latent heat, which is released by the condensing of liquid by the condenser, to the heating device. Further, a method of drying a recording substrate and a method of fixing a printing substance on a recording substrate include heating a recording substrate by a heating device; condensing liquid from air from surroundings of the recording substrate; and transferring energy from latent heat, which is released by the condensing of liquid, to the heating device.

Abstract: A reproduction apparatus includes a print unit with print elements for ejecting an amount of ink on a plurality of sheets, of which each size in the direction perpendicular to the transport direction of the sheets under the print unit is smaller than the size of the print unit in the same direction, and a displacing mechanism for displacing the sheets in the same direction. The displacement of the displacing mechanism is so extreme that an alignment of a sheet is variable from an alignment of one side of the sheet with one end of the print unit to an alignment of the other side of the sheet with the other end of the print unit. Also a method for application by such a reproduction apparatus is disclosed.

Abstract: A method obtains color consistency over at least one printing system in order to print a digital image containing pixels and color information of the primary colors per pixel. Each printing system includes at least one engine including a plurality of containers, each of the containers containing a marking material having a primary color. The method includes the steps of, for each primary color, determining a target color which is printable by each engine on the receiving medium, determining for each container how much marking material must be ejected to establish the target color, and for each pixel of the digital image to be printed by an engine, replacing each primary color of the pixel by a corresponding target color, and printing the pixel by ejecting marking material from the containers of the engine according to the determined marking material per target color per container of the engine.

Abstract: An ink jet printing device includes a pressure chamber, a first actuator membrane being arranged to form a first flexible wall of the pressure chamber, a first piezo-electric part being operatively connected to a surface of the first actuator membrane, a second actuator membrane being arranged to form a second flexible wall of the pressure chamber and a second piezo-electric part being operatively connected to a surface of the second actuator membrane, wherein the second flexible wall is mechanically decoupled from the first flexible wall.

Abstract: A print head comprises a pressure chamber in fluid communication with a nozzle and an actuator structure in operative communication with the pressure chamber for generating a pressure wave in the pressure chamber. The actuator structure comprises a membrane, wherein a first surface of the membrane forms a flexible wall of the pressure chamber and a piezo actuator, wherein the piezo actuator is arranged on a second surface of the membrane, the second surface being opposite of the first surface, such that the membrane is deformed at the position of the piezo actuator upon actuation of the piezo actuator. In the print head, the membrane is pivotably clamped between a first structure layer and a second structure layer such that the membrane pivots at the location of clamping upon deformation of the membrane due to actuation of the piezo actuator.

Abstract: A printing system for printing a fluid includes a print head for ejecting droplets of the fluid; a first fluid storing section for storing a first amount of the fluid; a second fluid storing section for storing a second amount of the fluid, the second fluid storing section being in fluid communication to the pressure chamber in a power down situation; and a pre-tension device configured for arranging the second amount of the fluid in a pre-tension state in the second fluid storing section, thereby providing a positive fluid pressure on the nozzle in a power down situation, which positive fluid pressure is selected such that a third amount of fluid passes through the nozzle in response to said positive fluid pressure and forms a film on the nozzle plate. The printing system according to the invention supports the recovery of the print head after a power down situation.

Abstract: A color management method, wherein a Graphics Processing Unit (GPU) is used for converting colors from a source device color space to an output device color space in accordance with predetermined color profiles of the source and output devices. The method includes the steps of storing, in the GPU, an at least three-dimensional conversion texture that specifies a color conversion table; loading input color data into the GPU; sampling the conversion texture at a position specified by the input color data, thereby to identify output color data; and outputting the output color data.

Abstract: In a method for determining a maintenance performance of a maintenance unit of an inkjet printing system, the inkjet system comprises an inkjet print head having an orifice surface, the orifice surface comprising an orifice, which orifice is in fluid communication with an ink chamber. The method comprises operating the maintenance unit to perform a maintenance operation on the orifice surface of the inkjet print head and detecting the presence of a wiper element or amount of ink over the orifice by detecting a pressure wave in the ink chamber and analyzing the detected pressure wave to determine the maintenance performance of the maintenance unit.