Abstract: A printer apparatus for recording images having matt portions and glossy portions and a print method for recording images having matt portions and glossy portions onto a porous media are disclosed. The method involves locally applying a support layer and subsequently applying an image portion on top of the support layer.

Abstract: A method for processing a print job by a printing system and a finishing system resulting in an end product is disclosed. The printing system includes a print controller. The finishing system is an in-line or near-line finishing system and includes a finishing controller for controlling the finishing process by means of a collection of finishing templates stored in memory of the finishing controller. The printing system and the finishing system are connected via a digital connection.

Abstract: A printing method includes forming an image by applying marking material onto the surface of a substrate; optionally applying an intermediate layer onto the substrate; subjecting the image to a fixation treatment; applying a layer of an ionically stabilized varnish on the surface of the image; and performing image-wise gloss control by locally varying at least one of a fixation parameter and a primer application parameter.

Abstract: A liftable transport pinch is provided with a simplified construction to enhance lifetime and productivity. This transport device includes at least one roller mounted on an arm, and an actuator connected to a frame for moving the roller between a first and second position. The arm is mounted onto the frame by means of an elastic hinge element. The elastic hinge element provides a simple, cheap, wear-resistant, and easy-to-assembly alternative to prior art solutions.

Abstract: In a method and system for increasing print quality, activation pulses are activated with which a nozzle of an inkjet printing device to print dots on a recording medium. The activation pulses may be adapted based on sensor data with respect to already printed dots. The method and system can further include an automatic adaptation of the activation pulses to increase print quality even given the presence of soiling at the nozzle.

Abstract: In a method and a device for determining faulty print nozzles of a printing device, a plurality of print nozzles of at least one primary color are activated so that they print dots of a test image onto a recording medium, said dots forming lines as viewed in the printing direction, in a plurality of line rows that are successive as viewed in the printing direction and travel in the line direction. The lines of successive line rows are displaced counter to one another in the line direction, and the lines of each line row have a predetermined constant pitch from one another in the line direction. Furthermore, using an image detector, the printed test image is detected per pixel and image data are provided, wherein an image pattern processing implements a homogenization of the image data via filtering, evaluates the homogenized image data, and determines defective image regions.

Abstract: A method and an arrangement for calibrating a delivery rate of an ink pump of a printing device with the aid of an ink container including a sensor unit for detecting at least a first fill level value. Based on the initial fill level of the ink container below the first fill level value, the ink pump conveys ink from an ink reservoir into the ink container up to a final fill level above the first fill level value, so that at least a predetermined volume between the initial fill level and the first fill level value is filled. Upon conveying the ink into the ink container, an ink pump parameter is determined as of reaching the initial fill level and until the first fill level value is reached. A delivery rate of the ink pump is determined based on the predetermined volume and the ink pump parameter.

Abstract: A method for printing and curing an image uses a printer having a curing unit including at least one controllable radiation emitting unit. The printer includes a medium support configured to, in operation, support the recording medium. The method includes applying a predetermined pattern of a radiation-curable ink composition onto a recording medium to form an image; curing the image in a curing zone, wherein in the curing zone the recording medium covers a first area of the medium support, the medium support further having a second area not covered by the recording medium; controlling the curing unit to be in a curing mode in the first area of the medium; and controlling the curing unit to be in a non-curing mode in the second area of the medium support. A printer and a software product are also disclosed.

Abstract: During flipping sheets may fold upon themselves under the influence of gravity. To prevent a sheet stacker is provided with a holding device for releasably holding at least a portion of the sheet at least partially during the flipping of the sheet by a sheet flipping device, wherein the holding device is configured for movement of the held portion of the sheet in a first direction perpendicular to the flipping axis.

Abstract: A controller may detect an elevation of a recording medium that is to be printed to, the elevation may result in the printing element of a printing device being negatively affected. The controller may automatically produce a time-limited printing pause of the printing element in which the printing gap between the printing element and the recording medium is temporarily enlarged in order to direct the detected elevation past the printing element. A negative effect on the printing device given the presence of a damaged recording medium may thus be efficiently and reliably avoided or reduced.

Abstract: Method for a printing system for processing a print job comprising the print data and the plurality of print job settings. Automatically an area of the recording medium is established that is deemed to be removed or made invisible during the at least one finishing action by a finisher. A digital object is retrieved from memory of the printer which is used for checking and monitoring at least one characterization of the desired end product. The print data are printed and also the digital object is printed at the automatically established area.

Abstract: An aqueous ink composition includes a film-forming retardation additive, which enhances the pigment efficiency in the ink composition. A method for making such an ink and a method of printing with such an ink are also disclosed.

Abstract: The present invention relates to an aqueous pre-treatment liquid for use in ink jet printing, the pre-treatment liquid comprising: water; magnesium-sulfate; and a crystallization retarding agent selected from the group consisting of: sorbitol, xylitol, adonitol, ?-alanine, proline and ?-aminobutyric acid. The pre-treatment liquid is non-yellowing, non-smelling and does not crystallize upon drying. Prints made by using a pre-treatment liquid according to the present invention in combination with an aqueous ink shows a significant decrease of end-curl after a long period of time.

Abstract: To prevent deformation to relatively stiffer sheets during flipping, while ensuring reliable holding of relatively weaker sheets, a method for stacking sheets received from a printer by a sheet flipping device includes at least one slot for receiving a leading portion of a sheet. The method includes determining a respective insertion depth parameter for a first and a second sheet, wherein the second sheet has a greater stiffness than the first sheet; inserting a length of the first sheet into the at least one slot in correspondence with its respective insertion depth parameter, followed by flipping said first sheet; inserting a length (D2) of the second sheet into the at least one slot in correspondence with its respective insertion depth parameter, followed by flipping said second sheet, wherein the inserted length of the first sheet is greater than that of the second sheet.

Abstract: A digital printer and a method of controlling the digital printer having a print head with an array of printing elements and a failure detection system arranged to detect malfunctioning printing elements. When, during printing, a malfunctioning printing element is detected, a switch from the current print strategy to another print strategy is arranged during printing which leaves the number of passes per swatch constant, i.e. the print quality is not affected by the switch.

Abstract: A method of ink jet printing using an ink jet imaging device including a plurality of nozzles arranged for expelling droplets of an ink by actuation of an ink channel includes the steps of: a) providing a bit map of a spit pattern comprising an arrangement of refresh dots to be printed by each of the plurality of nozzles; and d) printing the bitmap of the spit pattern. The spit pattern includes a plurality of clusters of refresh dots, each cluster including at least two sequential refresh dots expelled from a single nozzle. A spit pattern for use in such a method is disclosed.

Abstract: The present invention relates to a method for applying an image onto the recording medium, the method including the step of applying a primer composition comprising a stoichiometric polyelectrolyte complex to a recording medium. The present invention further relates to a printing apparatus for carrying out said method.

Abstract: An inkjet printer and a method for controlling an inkjet printer are disclosed. The inkjet printer is provided with an endless transport belt for transporting a medium to be printed; at least one roller for driving the transport belt and at least one additional roller for driving and/or suspending the transport belt; a detection system configured to detect a deformation of the transport belt including at least an in-plane bending deformation of at least a stretch of the transport belt and to generate at least one deformation signal indicating the detected deformation; an actuator assembly configured to change a position and/or orientation of at least one of the rollers of the inkjet printer; and a controller configured to control the actuator assembly based on the at least one deformation signal.

Abstract: When using a flipping wheel to flip sheets of weak or long media, there is a risk that these sheets collapse upon themselves. To reduce this risk, a method of stacking sheets includes flipping a sheet while holding its leading edge and bringing the leading edge down towards a stack support; bringing a trailing portion of the sheet into contact with a guide member positioned over the stack support; forming an overpressure in an inner volume of the bent sheet during flipping, while its trailing portion is in contact with the guide member; and maintaining the overpressure and contact while a trailing edge of the sheet travels along the guide member.

Abstract: The present invention relates to a print method. In the print method, a first layer of ink is deposited and cured before a second layer is applied. The present invention further relates to a software product. The present invention also relates to an inkjet printing apparatus.