In an inkjet print head for generating a droplet of ink, the inkjet print head comprises an ink supply substrate having an ink supply channel in fluid communication with an ink supply connector channel for receiving ink from an ink reservoir and in fluid communication with an ink return connector channel for supplying ink to the ink reservoir; a droplet forming unit arranged on the ink supply substrate, the droplet forming unit having an ink inlet surface, in which ink inlet surface an ink inlet port for receiving ink from the ink supply substrate is arranged; a manifold chamber formed over the ink inlet surface of the droplet forming unit; and a filter arranged between the ink supply substrate and droplet forming unit, the filter having a first filter surface at an upstream side and a second filter surface at a downstream side, the second filter surface being opposite to the first filter surface and filter holes extending from the first filter surface to the second filter surface. The first filter surface forms a wall of the ink supply channel.
An inkjet print head for generating a droplet of ink comprises an ink supply substrate comprising an ink supply channel; a droplet forming unit arranged on the ink supply substrate; and a manifold chamber formed over an ink inlet surface of the droplet forming unit. The manifold chamber comprises a first wall formed by the ink inlet surface, a second closed wall formed opposite to the first wall and a side wall extending between the first wall and the second wall and surrounding the manifold chamber. The manifold chamber extends in a manifold plane. The inkjet print head further comprises a manifold supply channel arranged in the manifold plane and surrounding the manifold chamber. The ink supply channel is in fluid communication with the manifold supply channel. A number of manifold feed openings in the side wall provide for a fluid connection between the manifold supply channel and the manifold chamber. The number of manifold feed openings is arranged surrounding the manifold chamber to enable ink to flow into the manifold chamber in at least two different flow directions. The multiple flow directions prevent dead zones in the manifold chamber.
A medium support member comprising an overlay (1) which comprises a plurality of through-holes (5) for applying a suction force to a medium, and a spacer array (10), which spacer array comprising at least one spacer member (12) and is provided on the bottom surface of the overlay for forming a gap (13) between the table and the overlay. The overlay further comprises a recess (3) for a medium registration element, which recess extends from the top surface of the overlay to the bottom surface of the overlay. The at least one spacer member on the bottom surface of the overlay is positioned between the recess and a through-hole (5a). A groove (6) is provided in the top surface of the overlay, which groove extends from the through-hole (5a) over the at least one spacer member (12) for applying a suction force to a medium.
In a printing assembly for providing an image on a medium, the printing assembly comprises a print station for providing a recording substance on the medium for forming the image. The recording substance releases a gaseous emission after application on the medium. An air stream supply unit and an air stream pick-up unit for generating an air stream from the air stream supply unit to the air stream pick-up unit are provided and arranged such that the air stream is positioned between a printed part of the medium, on which printed part the recording substance is provided, and a surroundings of the printing assembly. The air stream thus forms an air curtain preventing the gaseous emission from entering the surroundings.
The present invention relates to a colored toner composition that shows improved fusing behavior. The toner composition comprises a small amount of iron oxide. The invention further relates to the use of between 0.1 and 4 wt% of iron oxide in a colored toner composition for said purpose.
A process of manufacturing droplet jetting devices (10; 10') by bonding together a nozzle wafer (16a) defining nozzles (50) of the jetting devices, a membrane wafer (14a) carrying, on a membrane (30), actuators (32) for generating pressure waves in a liquid in pressure chambers (20) that are connected to the nozzles (50), and a distribution wafer (12a) forming a distribution layer (12) that defines supply lines (18) for supplying the liquid to the pressure chambers (20), from a liquid reservoir formed on a side of the distribution layer opposite to the membrane wafer, and by dicing the bonded wafers, characterized in that the distribution layer (12) has a thickness larger than the thickness of each of the other two wafers (14a, 16a), and a restrictor (56) for controlling the inertance of the liquid supply line (18) is formed through the distribution layer (12) in a direction normal to the plane of that layer.
The present invention relates to a pre-treatment liquid providing improved spreading property when printing an ink-jet image, as well as an an ink-jet printing method comprising applying the pre-treatment liquid of the invention on a recording medium prior to printing an ink-jet image and a method of pre-treating a recording medium, comprising pre-treating a recording medium with the pre-treatment liquid of the invention. With the present pre-treatment liquid a combination an improved spreading of the ink on the pre-treated recording medium can be achieved.
B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
C09D 125/00 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
C09D 139/00 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by; Coating compositions based on derivatives of such polymers
C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
The present invention provides a plasma discharging treatment apparatus, comprising axfirst and second electrode for generating a plasma or corona, a transport path extending between the first and second electrode, wherein the second electrode comprises at least two rotatable transport rollers for transporting a cut sheet medium along the transport path, and wherein a guide member is positioned between the at least two transport rollers to define the transport path between the at least two transport rollers. The invention further provides a method for the plasma or corona treatment of cut sheet media.
B41F 21/00 - Devices for conveying sheets through printing apparatus or machines
B41F 23/06 - Powdering devices, e.g. for preventing set-off
B65H 5/00 - Feeding articles separated from piles; Feeding articles to machines
B65H 5/06 - Feeding articles separated from piles; Feeding articles to machines by rollers
B65H 5/16 - Feeding articles separated from piles; Feeding articles to machines by pusher, needles, friction, or like devices adapted to feed single articles along a surface or table
H01T 19/00 - Devices providing for corona discharge
B65H 5/36 - Article guides or smoothers, e.g. movable in operation
A droplet ejection device having a nozzle head (10) with a plurality of ejection units (28) each of which comprises a nozzle (12), a duct (16) connected to the nozzle, and an electromechanical transducer (22) arranged to create a pressure wave in a liquid in the duct (16) so as to expel a droplet of the liquid from the nozzle (12), the device further comprising an electronic control circuit (32) arranged to apply control signals to the transducers (22) and to receive detection signals that are generated in the transducers in response to the transducer being exposed to pressure fluctuations, wherein the nozzle head (10) comprises a reference duct (42) which has an electromechanical transducer serving as a reference transducer (44), and the control circuit (32) is arranged to subtract a detection signal of the reference transducer (44) from a detection signal of at least one of the ejection units (28).
B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
The present invention provides an apparatus for handling take-up rolls in a printing system. The apparatus comprises: a holder device for holding a take-up roll in a take-up position, wherein the take-up roll is rotatable about a longitudinal axis thereof in the take-up position for taking-up printed sheet output from the printing system. The holder device is movable to release or discharge the take-up roll from the holder device when the take-up roll is full or when a print job is finished, wherein a movement of the holder device to release or discharge a full take-up roll also operates to load a new take-up roll onto the holder device and into the take-up position. Furthermore, the invention provides a corresponding method of handling take-up rolls in a printing system.
A method of controlling a printing system that is arranged to process a sequence of media sheets (56a, 56b) and is operable with a finite number of different settings, the method comprising a step of calculating a time to finish (T(b)) that will be needed for processing the sequence, characterized by the steps of scheduling a sequence of sheets (56a, 56b) for printing, defining a set of possible settings for processing the scheduled sequence; calculating a time to finish (T(b)) for each setting in the defined set; selecting the setting with the smallest time to finish; and processing the sequence with the selected setting.
The present invention relates to a method for printing on a plurality of sheets (20, 22). The method comprising the steps of: arranging the plurality of sheets on a support surface (14) of an endless conveyor, the plurality of sheets including a first sheet and a second sheet being arranged at a sheet-to-sheet distance (SI) between one another; advancing the plurality of sheets on the support surface in a conveying direction (T) along a print head assembly (12a-12d) for applying droplets of ink on the sheets; providing a suction force through perforations arranged in the support surface for holding the plurality of sheets on the support surface, wherein the suction force provides an air flow through uncovered perforations present in the sheet-to-sheet distance in a print region between the print head assembly and the support surface; and forming an image by the print head assembly on each of the plurality of sheets supported on the support surface of the conveyor by applying droplets of ink. The method further comprises the step of controlling the sheet-to-sheet distance in response to a dew formation attribute for indicating dew formation on the print head assembly.
An electronic circuit for driving an inkjet print element in an array of print elements with an electric waveform is provided. The print element comprises a piezotransducer for converting the electric waveform in a mechanical displacement. The electric waveform is tunable for an individual print element. The circuit comprises a common waveform generator that is connected to the piezo transducer through a first print data dependent switch for providing an electric waveform independent of the print element. The circuit further comprises a waveform tuning part, dependent on the print element and the print data, for controlling a second switch that adds electric energy from a voltage source to the electric waveform. The switches are operable in either a saturation state or a blocking state to limit an amount of dissipation in the switches.
B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
14.
INK HANDLING UNIT AND INK JET IMAGING DEVICE COMPRISING SUCH INK HANDLING UNIT
The present invention relates to an ink handling unit comprising an ink reservoir (1) with an integrated heat exchange channel (4) configured for pre-heating or pre-cooling an ink feed flow entering the ink reservoir (1) via the heat exchange channel, wherein the heat exchange channel (4) is in direct thermal contact with an interior space (5) of the ink reservoir. The invention further relates to an ink jet imaging device comprising such an ink handling unit. Such imaging devices are suitable to be used in highly productive ink jet processes at elevated temperatures.
A printing system comprising a print station (16) disposed at a sheet transport path (18), a feed section (10) arranged to feed media sheets (60) of different media types into the transport path (18) so as to be fed sequentially to the print station (16), and a controller (20) arranged to receive print instructions concerning images to be printed, to schedule a sequence of the media sheets, and to control the feed section and the print station such that each image is printed on a sheet of a media type that has been specified for that image in the print instructions, wherein a sensor (62) is arranged at the transport path (18) for detecting a quality condition of the sheets being fed to the print station, and the controller (20) is adapted to receive a quality signal from the sensor (62) and, when the quality of a sheet is found to be insufficient, to skip that sheet and to reroute the corresponding image to another scheduled sheet that is compatible with the print instructions.
B41J 13/00 - Devices or arrangements specially adapted for supporting or handling copy material in short lengths, e.g. sheets
B65H 29/62 - Article switches or diverters diverting faulty articles from the main stream
B65H 7/06 - Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
16.
METHOD FOR ESTABLISHING A POSITION OF A MEDIA OBJECT ON A FLATBED SURFACE OF A PRINTER
The invention relates to a method for printing a digital image on a media object lying on a flatbed surface of a printer, the printer comprising a print head for ejecting recording material on the media object, a camera system connected to the control unit and positioned above the flatbed surface, and a control unit for storing a digital image and controlling the printing of the digital image on the media object, the media object having a contour as seen from a point of view of the camera system towards the flatbed surface, a first point having a position on the contour at a particular height with respect to the flatbed surface, and a second point being one of a point of normal projection of the first point on the flatbed surface and a point having another position on the contour than the first point, the second point being at the same height as the particular height of the first point, and the control unit storing a distance between the first point and the second point, the method comprising the steps of capturing a camera image of the flatbed surface by means of the camera system,determining a first image position in the camera image corresponding to the first point,determining a second image position in the camera image corresponding to the second point, deriving an actual position of the first point by means of the position of the camera system, the first image position, the second image position and the stored distance, and printing the digital image on the media object by ejecting recording material on the media object while taking into account the derived actual position of the first point on the flatbed surface.
A printer that is adapted for printing on a mixed sequence of media sheets (16) with a print head (12) that is adjustable in height (h) relative to a print surface (14) that supports the media during printing, the printer having a user interface (34) and a controller (32), characterised in that the controller (32) stores a set of different height adjustment strategies for handling media that differ in specifications that define an admissible range for the height (h) of the print head, and the user interface (34) is adapted to permit the user to select among the stored height adjustment strategies (48).
A method of configuring a smart mobile device (20) for remote control of a target process (51), the device comprising a tag reader (21), an interface (22, 23) to a communications network (30, 31), and an operating system (24) capable of dispatching a URI to be handled by a URI handler selected from among a plurality of URI handlers that are installed on the mobile device, the method being characterized by the steps of: -reading, with the tag reader (21), a data tag (10) that is associated with the target process (51) and includes the specific URI (11) to be dispatched by the operating system; -installing, on the mobile device, a local configuration service (27) which is a URI handler capable of: -parsing a specific URI (11) that is related to the target process (51), -connecting, via the communications network (30, 31) and on the basis of parameters inferred from the parsed URI (11), to an external configuration service (41, 2) for downloading a mobile client application (28) for controlling the target process (51), said mobile client application being another URI handler, and -returning said specific URI (11) to the operating system, thereby causing the same to call up the mobile client application (28). 20 (Fig. 1)
A jetting device comprising an ejection unit arranged to eject a droplet of a liquid and comprising a nozzle (22), a liquid duct (16) connected to the nozzle (22), and an electro- mechanical transducer (26) arranged to create an acoustic pressure wave in the liquid in the duct, the device further comprising a filter (32) arranged to filter the liquid being supplied into the duct (16), and a filter status detection system (48, 50, 52) arranged to detect an obstruction status of the filter (32) by measuring a property of the liquid in the duct (16), characterized in that the filter status detection system (48, 50, 52) comprises a circuit configured for measuring the electric response of the transducer (26), for recording changes in the electric response that represent pressure fluctuations induced by the acoustic wave in the form of a time-dependent function, and for judging the obstruction status of the filter on the basis of that function.
A sheet conveyor is provided for transporting a sheet (20). The sheet conveyor comprises a supplying conveyor (10), a receiving conveyor (40) and a sheet guidance unit (100). The receiving conveyor comprises a support surface (42) arranged for supporting the sheet on a contact side (21) of the sheet and an attraction unit (46) arranged for attracting the sheet to the support surface. The supplying conveyor comprises a transport belt (14) being arranged for advancing the sheet in a transport direction along a transport path towards the support surface of the receiving conveyor; the sheet having two side edge portions (26) relative to the transport path. The sheet guidance unit is arranged at a downstream end of the transport path for guiding the sheet towards the receiving conveyor, wherein said sheet guidance unit comprises a lifting element (130a, 130b) arranged for lifting both side edge portions of the sheet away from the support surface while a middle portion of the sheet in between both side edge portions is guided towards the support surface.
A method is provided for printing colour images using a colour workflow. This workflow results in equal output colours from two print systems. For a first print system an existing colour output profile for converting colours is used. An actual output colour profile for the first print system is obtained from colour measurement data that relate device colorant coordinates of the first print system to device independent colour data. The existing output colour profile does not correspond to the colour measurement data. For a second print system, an additional output colour profile is obtained from colour measurement data. The colour workflow that is applied in the second print system for converting colours of an input image is made by combining the existing output colour profile, the actual output colour profile and the additional colour output profile, wherein the actual output colour profile is applied in an inverse direction (A2B).
The invention relates to a method for printing a plurality of voxels of an object in a plurality of passes of a print head of a printing system over a substrate, each pass having a movement direction of the print head relative to the substrate while ejecting marking material from the print head towards the substrate, each voxel having a position in the object, the method comprising the steps of for each voxel of the object selecting a movement direction of the print head based on the position of the voxel in the object, selecting at least one pass in which the voxel will be printed, the at least one pass having a movement direction which corresponds to the selected movement direction of the print head, and printing the voxel in the selected at least one pass. The invention also relates to a printing system configured to execute the method.
The invention relates to a method for printing a plurality of print jobs on a flat bed printer having a flat bed with flat bed characteristics, each of the plurality of print jobs having print job characteristics, the method comprising the steps of automatically grouping the plurality of print jobs into a plurality of consecutive container jobs, each container job comprising a group of print jobs for which media pieces are intended to be laid down on the flat bed for printing the group of print jobs on the media pieces in one print batch, and for each container job automatically creating a digital plan of the flat bed, the digital plan comprising representations of the media pieces on which the group of print jobs in the container job are intended to be printed, automatically defining a mask with cutting information according to the created plan, receiving the defined mask on the flat bed, receiving the media pieces on the flat bed positioned in according with the received mask, and unattended printing of the plurality of print jobs of the container job on the media pieces by means of the flat bed printer making use of the received mask, wherein the automatic grouping of the plurality of print jobs into the plurality of consecutive container jobs comprises the steps of gathering the group of print jobs for a container job due to the print job characteristics of each of the plurality of print jobs and/or the flat bed characteristics of the flat bed and ordering the consecutive container jobs due to the print job characteristics of each of the plurality of print jobs and/or the flat bed characteristics of the flat bed.
An inkjet print head comprises an ejection unit having a liquid chamber for holding an amount of liquid, a electromechanical transducer operatively coupled to the liquid chamber for generating a pressure wave in the amount of liquid and a nozzle in fluid communication with the liquid chamber for enabling a droplet of the amount of liquid to be ejected through the nozzle.A method for detecting an operating state of the ejection unit comprises the consecutive steps of actuating the electromechanical transducer to generate a pressure wave in the liquid; actuating the electromechanical transducer to suppress a residual pressure wave in the liquid; sensing an amplitude of the residual pressure wave in the liquid; and based on the result of the sensing step determining that the ejection unit is (i) in an operative state if the amplitude of the residual pressure wave is below a threshold or (ii) in a malfunctioning state if the amplitude of the residual pressure wave is above the threshold.
B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
A print head assembly comprises a print head unit (10), a cooling duct (16), and a blower (18) arranged to pass a gaseous cooling medium through the cooling duct (16). The cooling duct (16) has an elongated closed hollow cross-section bounded on at least one side by a flat wall. The print head unit (10) is attached to the flat wall (32) outside of the cooling duct (16) such that the print head unit is cooled by the gaseous medium passing through the cooling duct via thermal contact through the flat wall of the cooling duct.
A print job processing system comprising: - a printer (10); - a user interface (24); - a job file receiving section (12); and - a media management system (28) adapted to extract media specifications from a received job file and check the media specifications for compatibility with properties and/or a current status of the printer (10), wherein in that the media management system (28) is adapted to check whether essential media specifications are defined in the job file or not and, when they are not defined, to invite the user via the user interface (24) to complete the specifications.
The present invention relates to a radiation curable ink composition comprising an ester compound, that is suitable for printing high gloss images. The invention further relates to a method for making such ink composition and a printing method using such ink composition.
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
The present invention relates to a radiation curable ink composition comprising two ester compounds. The invention further relates to a method for making such ink composition and a printing method using such ink composition.
C09D 11/101 - Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
In the present invention a sheet transfer assembly (100) is provided for transferring a sheet from a supplying conveyor (10) to a receiving conveyor (40). The receiving conveyor comprises a transport belt (42) having a support surface (43) for supporting the sheet on a contact side (21) of the sheet. The supplying conveyor is arranged for advancing the sheet in a transport direction (T) towards the receiving conveyor. The sheet transfer assembly comprises a sheet guidance element (110) arranged downstream of the supplying conveyor in the transport direction for guiding the sheet towards the receiving conveyor, the sheet guidance element comprising a guidance surface (120) for supporting the sheet at its contact side; wherein the guidance surface comprises two guide faces (130a, 130b). Both guide faces extending in the transport direction over the support surface of the transport belt and being cooperatively arranged for supporting both side edge portions (26) at the sides of the sheet in a lateral direction (Y), which is substantially perpendicular to the transport direction, thereby forming a space (132) in between one another allowing a middle portion (28) of the sheet to move towards the support surface of the transport belt.
The present invention relates to a recording substrate treatment apparatus (20), comprising a transporting means (21) for transporting a sheet of a recording substrate (23) through a first chamber (49) comprised in the interior space of the recording substrate treatment apparatus (20); a first suction device (38) arranged for removing a gaseous medium from said first chamber (49); an impingement device (33), arranged for providing a first flow of the gaseous medium at the outer surface of the transporting means (21); wherein the first suction device (38) is fluidly connected to the impingement device (33), such that in operation the impingement device (33) receives a first flow of the gaseous medium from the first suction device (38). With this arrangement the impingement flow is balanced with an air flow directly extracted from the first chamber (49) of the recording substrate treatment apparatus (20). The present invention also pertains to a printing system comprising such a recording substrate treatment apparatus (20) and a method of drying a recording substrate using such a recording substrate recording apparatus (20).
Belt conveyor system (100) comprising: an endless mesh belt (110), the belt having a mesh structure and having edge areas at the lateral sides, a drive mechanism drivable by a drive motor to rotate the belt, and a steering roller (124) for steering the lateral position of the belt, wherein an edge area comprises a band (116) running substantially parallel to the lateral sides, the band comprising an elastic filler (117) being provided inside the mesh structure, the elastic filler being discernible from the mesh structure, and wherein the belt conveyor system further comprises a band position detector (440) for detecting the lateral position of the band.
The present invention relates to a gas impingement device (3) comprising a first surface (21) comprising a pattern of a plurality of gas outlets, the pattern comprising a number of substantially parallel rows of gas outlets (23a, 23b), the rows arranged in a direction which direction is at a skew angle a with a front edge of the first surface of the gas impingement device. The present invention further relates to a recording substrate treatment apparatus and a printing system comprising such a gas impingement device and a method of drying a recording substrate by using a gas impingement device according to the present invention.
B41F 23/04 - Devices for treating the surfaces of sheets, webs or other articles in connection with printing by heat drying, by cooling, by applying powders
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
A sheet conveying system comprising an upstream conveyor section having an endless first conveyor belt movable in a first conveying direction x and extending in a first lateral direction z, said first conveying direction x and said first lateral direction z defining a first conveying plane xz; and a downstream conveyor section (B) having an endless second conveyor belt (16) that adjoins the first conveyor belt (10) and is movable in a second conveying direction x' and extends in a second lateral direction z', said second conveying direction x' and said second lateral direction z' defining a second conveying plane x'z', the conveyor sections (A, B) being adapted to hold the sheets (14) slip-free on the first and second conveyor belts (10, 16),wherein the second conveyor belt (16) has a shear compliance in the second conveying plane x'z' that is larger than the shear compliance of the first conveyor belt (10) in thefirst conveying plane xz.
The invention relates to a printing system for cut sheets, the printing system comprising a control unit for controlling the printing of image data on a plurality of sheets and scheduling the plurality of sheets in a printing order, the plurality of sheets having different media properties, and a paper path comprising a loop in order to enable printing on the plurality of sheets in an interweaving first and second pass in the loop, and a print engine for disposing marking material on the sheets according to the image data. The print system comprises a pattern recognition module for recognizing a repeating pattern in the plurality of sheets on the basis of the media properties of the sheets. The control unit is configured to determine the entrance time of each of the plurality of sheets for entering the loop in the paper path for the first pass and for the second pass while taking the repeating pattern recognized by the pattern recognition module and a length of the loop into account.
G03G 15/23 - Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
G03G 15/00 - Apparatus for electrographic processes using a charge pattern
35.
PRINTING SYSTEM COMPRISING A PROOF PRINT REPOSITORY
The invention relates to a printing system, comprising a print job receiving section permitting a user to submit a print job to the printing system, the print job comprising a plurality of print job settings, a print job queue section comprising a print job queue for print jobs submitted to the printing system and scheduled to be printed, and a proof print repository section comprising a proof print repository for proof print jobs submitted to the printing system. The printing system comprises a continuous monitoring section configured to compare print job settings of a proof print job residing in the proof print repository or scheduled in the print job queue with current resources available in the printing system according to a proof print policy. The proof print policy is attached to the proof print job and comprises a comparison criterion. Upon a match of the print job settings of the proof print job with the current resources according to the comparison criterion, the proof print job is scheduled in the print job queue.
The invention relates to a method for ejecting a stack of sheets from an output holder attached to a printing device, the output holder configured to hold a stack of sheets printed upon by the printing device according to a plurality of print jobs submitted to the printing device, the printing device comprising a control unit for controlling the receiving of the plurality of print jobs in a print job queue and the printing of the plurality of print jobs according to the print job queue, the method comprising the steps of receiving a trigger comprising information for an ejection of the stack for another reason than a full output holder, the stack ejection to be performed before the start of the printing of a print job residing in the print job queue or after the print job residing in the print job queue has been printed,and entering a task for the ejection of the stack at a position in the print job queue, the position determining an intended moment in time of the ejection of the stack corresponding to the information comprised in the trigger. The invention also relates to a printing system configured to execute the method according to the invention.
For assessing the functioning of an ejection unit of an inkjet print head, a comparison of a residual pressure wave with a residual pressure wave reference is employed. To enable assessment during printing, multiple residual pressure wave references are provided, each relating to a condition relevant to the residual pressure wave. Such a condition may relate to an actuation status of an adjacent ejection unit which may cause crosstalk, for example. When performing the assessment, the condition during assessment is taken into account, for example for selecting a suitable residual pressure wave reference, such that an appropriate and correct assessment can be performed independent from the conditions during assessment.
B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
B41J 2/165 - Prevention of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
The present invention relates to an aligning anchor for positioning a substrate on a printing surface. The printing surface comprises a plurality of suction holes being distributed over the printing surface to provide a suction force to a contact side of the substrate. The aligning anchor comprises a first aligning element comprising a contact surface shaped to contact the printing surface, wherein the first aligning element has a thickness perpendicular to the contact surface. The aligning anchor further comprises a first positioning pin and a second positioning pin, each positioning pin protruding in a height direction substantially perpendicular from the contact surface and being shaped to fit into a suction hole. The first positioning pin and the second positioning pin are arranged at a distance with respect to each other in the plane of the contact surface such that the first positioning pin fits into a first suction hole of the printing surface while the second positioning pin fits into a second suction hole of the printing surface in an assembled state of the aligning anchor and the printing surface.
A printing system comprising an apparatus (20) for defect detection in a printing system. The printing system comprises, an image forming device (9), a sensing unit (21) for sensing a surface geometry of a sheet to be printed and for generating data representative of that surface geometry, a processor device (25) for processing the data; and a controller (24) for controlling further progress of the sheet (S) along a transport path (P) of the printing system in dependence upon the deformations in the surface geometry of the sheet detected and classified by the processor device. The operating conditions the sheet is exposed to at the sensing unit are similar to the operating conditions the sheet is exposed at the image forming.
B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
40.
PRINTING SYSTEM AND METHOD FOR TRANSPORTING A PRINT MEDIUM IN A PRINTING SYSTEM
The invention provides a printing system with a transport mechanism for transporting sheets. The transport mechanism comprises: a conveyor body for supporting and conveying a plurality of sheets a transport path; suction means, and especially fan means, for generating an under-pressure at or adjacent to the conveyor body to hold the sheets fixed in position on the conveyor body as it conveys the plurality of sheets along the transport path; and a controller for controlling or regulating operation of the suction means to adjust the under-pressure generated. The controller is configured to control operation of the suction means based on delivery of the plurality of sheets to the conveyor body and/or a change in the delivery of the sheets to the conveyor body. Further, the invention provides a corresponding method of transporting sheets of a print medium in a printing system.
The present invention provides a printing system (1) with an apparatus (20) for defect detection comprising a sensing unit (21) for sensing a surface geometry or topology of a sheet and for generating data representative of that surface geometry or topology, a processor device (25) for processing the data to detect and classify deformations, and a controller (24) for controlling further progress of the sheet along the transport path of the printing system in dependence upon the deformations detected and classified by the processor device (25). Furthermore, the invention provides a corresponding method of detecting defects in a printing system.
B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
42.
DOCUMENT PROCESSING SYSTEM FOR PROCESSING A PRINT JOB
The invention relates to a method for processing by means of a document processing system comprising at least one printer and at least one finisher, a print job to produce a document comprising at least one sheet, the print job specifying a plurality of actions on a physical start product and specifying a desired end product, the method comprising the steps of generating a sheet assembly by executing a production route model of at least one function leading to the plurality of actions, on behalf of a plurality of settings, at least one representation of the at least one sheet of the physical start product and pages derived from at least one source file, the sheet assembly comprising a set of transitions that result from invocation of the plurality of actions,extracting from the sheet assembly a document imposition recipe comprising a set of imposition descriptions generated by computing transformations and parameters for each transition performed on the sheet assembly, and rendering the imposition descriptions of the document imposition recipe on behalf of the at least one source file in order to deliver impositions in a source format describing at least placement of content of pages of the at least one source file and action marks for subsequent displaying of the impositions on a user interface of the document processing system and/or for subsequent processing on the at least one printer and/or an the at least one finisher. The invention also relates to a document processing system configured to execute the method according to the invention.
The invention relates to a method for printing by means of a flatbed printer comprising a flatbed surface for placing a plurality of pieces of media to be printed upon, the plurality of pieces of media having different thicknesses, a control unit for controlling the printing of digital images on the plurality of pieces of media, a gantry constructed to move over the flatbed surface in a first direction and extending in a second direction, a print head configured to eject recording material on the plurality of pieces of media and attached to the gantry, the method comprising the steps of dividing the flatbed surface into a plurality of strips extending in the second direction over a length of the flatbed surface in the second direction, storing a position of each of the plurality of strips in storage of the control unit, for each strip coupling in storage a thickness range to the strip, the thickness range comprising a maximum allowed thickness for a piece of media to be placed in the strip on the flatbed surface and a minimum allowed thickness for a piece of media to be printed upon when placed in the strip on the flatbed surface, establishing a position of each piece of media of the plurality of pieces of media in the appropriate strip according to the thickness of the piece of media, moving the print head over the flatbed surface, and ejecting the recording material on the plurality of pieces of media when moving the print head over the flatbed surface, wherein upon the print head reaching a strip when moving over the flatbed surface, adapting the distance from the print head to the flatbed surface according to the thickness range coupled to the strip.
H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
The present invention relates to a method of printing comprising the steps of : a. providing a substrate, a reaction liquid comprising a coagulation agent and an ink set comprising a first ink composition comprising a first colorant and a second ink composition comprising a second colorant, different from the first colorant, wherein both the first colorant and the second colorant are dispersed as primary particles in the first ink composition and the second ink composition, respectively; b. applying the reaction liquid to a first surface of the substrate; c. printing a first layer of the first ink composition and a second ink layer of the second ink composition on the first surface of the substrate, wherein upon contact with the coagulation agent, the primary particles present in the first ink layer and in the second ink layer agglomerate such that secondary particles are formed in the first ink layer and in the second ink layer respectively, wherein the first ink layer obtains a first opacity and the second ink layer obtains a second opacity, wherein the ink layer obtaining the highest opacity is printed first. With such a method, the color gamut of an ink set comprising inks having a high light-fastness can be significantly improved. The invention further pertains to printed matter, printed with a method according to the present invention.
A user interface for at least one media processing apparatus (10), the user interface having a display device (18) connected to an apparatus control system (12) and arranged to visualize timings of events (40, 42) occurring or expected to occur in a processing sequence of the apparatus, the timings being visualized by showing an indication of each event on a timeline (24, 26, 28) that has a certain time scale (38) and a certain zero point (36), wherein the timeline (24, 26, 28) has at least two sections (30, 32) which differ in the time scale (38) and/or the zero point (36).
A print head comprising a plurality of chip-like tiles (10) arranged on a common substrate (14), each tile having a front face (16) with an array (18) of recording elements disposed in the front face (16) in a predetermined pattern, and a generally rectangular contour with a cut-out (40) formed at at least one of its four corners, each cut-out being delimited by two reference-defining walls (42, 44) extending normal to one another and to the front face (16) and serving as a reference for positioning the tiles (10) on the substrate (14) so as to establish a predetermined positional relationship between the recording elements of the different tiles, characterized in that the substrate (14) has a plurality of recesses (12) accommodating each at least a part of a tile (10) and having side walls that define engagement surfaces (46, 48) for each of the reference-defining walls (42, 44) of each tile, the substrate (14) is formed of a material that is suitable for photo-lithographic processing, and the engagement surfaces (46, 48) of the substrate (14) are surfaces formed by photo-lithographic techniques.
The present invention relates to an aqueous reaction liquid comprising a salt of a conjugate base of an organic acid, wherein the organic acid is selected from formic acid and organic acids comprising at least one stereogenic center and having a molecular weight of below 200 g/mol. Reaction liquids according to the present invention are HSE- friendly, non-corrosive and odorless. The present invention further pertains to an ink set comprising such a reaction liquid and a method of printing using such an ink set.
C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
C09D 11/40 - Ink-sets specially adapted for multi-colour inkjet printing
48.
AQUEOUS REACTION LIQUID, INK SET COMPRISING SUCH REACTION LIQUID AND METHOD OF PRINTING USING SUCH REACTION LIQUID
The present invention relates to an aqueous reaction liquid comprising a salt, a first surfactant being an amphoteric surfactant and a second surfactant being a non-ionic surfactant, preferably selected from the group consisting of hydrophilic silicones (such as polyalkylene oxide modified silicones / polyether modified silicones), alkoxylated alcohols, fluorosurfactants, polyether modified silicone surfactants and polyethyleneoxides. Reaction liquids according to the present invention show improved spreading on print substrates when applied, which is beneficial when the reaction liquid is applied by an ink jet method. The present invention further pertains to an ink set comprising such a reaction liquid and a method of printing using such an ink set.
C09D 11/54 - Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
C09D 11/40 - Ink-sets specially adapted for multi-colour inkjet printing
The invention relates to a print fleet system comprising a plurality of printer instances which have a same set of at least one system setting, a registration system for registering print jobs in combination with system settings of the same set of at least one system setting of the plurality of printer instances, and an advice system for generating an advice for an operator,and a user interface system for displaying the advice, wherein the registration system comprises a value change made to the set of at least one system setting of a printer instance out of the plurality of printer instances before printing a print job on the print engine, the advice system is configured to generate an advice related to the same print job intended to be printed on another printer instance out of the plurality of printer instances, the advice concerning the change comprised in the registration system, and the advice system is configured to transmit signals representing the advice to the user interface screen for display in order to advice the operator before printing the same print job on the other printer instance. The invention also relates to a method to be applied by the print fleet system according to the invention.
The invention relates to a printer having: a print head fastening facing a medium support surface; a scanning print carriage being movable along a guide in a scanning direction (Y); and a transporter for transporting the medium in a transport direction (X). The printer comprises a suspension structure connecting the print head fastening to the scanning print carriage while allowing movement of the print head fastening with respect to the scanning print carriage in a direction (X) parallel to the transport direction. The suspension structure is elastically deformable to allow for the movement in said direction (X).
The invention relates to a method for creating and processing specifications for a combined print product being a combination of at least two sub-products, where at least one sub-product is a print product, the method comprising the steps of determining based on an output specification of the combined print product a plurality of parts needed to produce the combined print product,for each determined part selecting a corresponding digital representation of the determined part from a digital representation collection,displaying the digital representations of the determined parts on a user interface screen,creating a digital hierarchical structure of the digital representations, wherein an order in the digital hierarchical structure defines usage of the parts, appliance of the parts and combination of the parts in a production process of the combined print product, and displaying the digital hierarchical structure on the user interface screen,wherein each part of the plurality of parts belongs to a part category out of a set of part categories, the set comprising a device, a device action, a finishing action, a media assignment action, a human action, are source being digital or physical, a logical concept, an export action, a content manipulation, a sorting action, a check action, a combination action and a selection action, and the plurality of parts comprises at least two resources, at least one device action, at least one finishing action, at least one combination action, at least one device and at least two logical concepts. The invention also relates to a combined print product processing system configured to apply the method according to the invention.
A printer comprising: - a conveyer (10) arranged to convey print media sheets (1 - 9) one after another in a conveying direction (X); - a print head (12) disposed at the conveyer (10) and having an array (14) of dot printing elements, the array extending in a direction Z normal to the conveying direction, the print head (12) being arranged to print images (16, 18) onto the media sheets (1- 9) in accordance with actuation instructions (20) sent to the print head; and - a maintenance manager (34) adapted to analyze the actuation instructions (20) and to decide on a maintenance operation for the print head (12) on the basis of the actuation instructions (20), and - a controller (22) adapted to convert print instructions (24) that specify images (16, 18) to be printed onto the media sheets (1-9) into the actuation instructions (20) for the print head (12), wherein the conveyer (10) is arranged to convey sheets (1-9) with different formats which differ in their dimension in the direction Z, and the maintenance manager (34) is adapted to decide on the maintenance operation, whenever the format of the sheets to be conveyed to the print head (12) changes from a narrower format to a wider format with a dimension in Z direction larger than that of the narrower format, on the basis of actuation instructions (20) for printing elements located within the width range (w2) of the wider format but outside of the width range (w1) of the narrower format, and wherein the maintenance manager (34) is adapted to decide on a maintenance operation on the basis of whether or not the actuation instructions (20) for the dot printing elements located outside of the width range (w1) of the narrow format but inside the width range (w2) of the wider format specify that at least one of these dot printing elements is needed for printing a part of the image.
The invention pertains to a sheet flipping device, comprising a receiving member (101) for receiving a sheet, a flipping volume being the volume which in operation is defined by the flipping movement of the sheet, a flipping element (102) for flipping the sheet around an axis of rotation within the flipping volume onto the receiving member, the sheet flipping device further comprises an air vortex ring generator (301) having an air vortex ring exit nozzle (320) defining a translational direction of a generated air vortex ring (305) when said generated vortex ring is in operation generated from the air vortex ring exit nozzle. The air vortex ring generator is mounted such that in operation the sheet is urged onto the receiving member by the air vortex ring during the flipping motion of the sheet through the flipping volume. The invention also relates to a printing apparatus comprising such sheet flipping device.
A document reproduction and finishing system comprising: - a print engine (10); - a finisher (12); and - an electronic document data processing system (14) adapted to convert a document data file(22) into print data (32) in a bit map level format suitable for controlling the print engine (10), wherein the document data processing system (14) comprises: - an analysis section (20) adapted to analyse the document data file (22) and to identify therein any information that explicitly or implicitly specifies finisher marks (36); - a finisher specifications storing section (24) adapted to store finisher specifications (26) that specify a format of finisher marks (40) that the finisher (12) is capable to read; and - a mark generating section (28) adapted to generate finisher marks (40) on the basis of the information identified by the analysis section (20) and in the format specified by the stored finisher specifications (26), and to insert these finisher marks (40) into the print data (32).
The present invention relates to a method printing comprising the steps of: providing a recording substrate comprising a water insoluble salt comprising a polyvalent cation; providing an aqueous ink composition comprising stably dispersed particles, the pH of the ink composition being between 2 and 6; printing the aqueous ink on the recording substrate. Optionally the printing substrate is treated with a plasma prior to applying the ink composition. Optionally the aqueous ink comprises a gelling agent, preferably a water soluble salt of alginic acid.
The present invention relates to an ink composition suitable for being ejected from an inkjet marking device at an operating temperature. The ink composition comprises stable dispersed colorant particles and stable dispersed latex resin particles, wherein the ion sensitivity of the colorant particles is larger than the ion sensitivity of the latex resin particles, the ion sensitivity being expressed as ion sensitivity ratio: ion sensitivity ratio (x M NaCl) = Zav (x M NaCl) / Zav (H2O) equation 1 wherein: Zav (x M NaCl) is the Z-average particle size determined 200 minutes after adding a droplet of a dispersion comprising colorant particles or latex resin particles to10 ml. of a NaCl solution, wherein x is the ionic strength (in mol/l) which is varied in a range of 0-6 mol/l; Zav (H2O) is the Z-average particle size determined 200 minutes after adding a droplet of a dispersion comprising colorant particles or latex resin particles to 10 ml. of demineralised water, wherein the ionic strengths at which the sensitivity ratios of the colorant particles and the latex resin particles are both equal to 2 are expressed as xcolorant and xlatex respectively, and wherein xcolorant and xlatex have the same meaning as x in equation 1, and wherein xcolorant and xlatex both lie in a range of 0-6mol/l, and wherein xcolorant > xlatex. In a preferred embodiment xcolorant - xlatex is at least 2 mol/l. The invention further relates to an ink set comprising such an ink composition and a primer composition comprising a precipitating agent, preferably a multivalent metal salt. The invention also relates to a method of printing using such an ink set. The inks and ink sets according to the present invention are capable of improving the transport robustness of prints, in particular of prints on machine coated media.
The invention relates to a method of assigning a print job to a print job queue of a printer, the method comprising the steps of displaying an overview of print job queue representations on a user interface system, each print job queue representation suitable for showing image items representing print jobs in a print job queue dedicated to a printer of a plurality of printers, selecting a first image item of the overview of print job representation, the image item representing a first print job residing in a first print job queue of which a print job queue representation is displayed in the overview, the first print job queue dedicated to a first printer of the plurality, dragging the first image item to a second print job queue representation displayed in the overview, the second print job queue representation representing a second print job queue dedicated to a second printer of the plurality, dropping the first image item on the second print job queue representation displayed in the overview, removing the first print job from the first print job queue, adding the first print job to the second print job queue, and placing the first image item in the second print job queue representation, wherein the method comprises the step of during dragging of the first image item and before dropping of the first image item providing visual feedback of the impact of at least one of the steps according to the method. The invention also relates to a print fleet system configured to apply the method according to the invention.
The invention relates to a method for predicting consumption of supply material for a plurality of print jobs in a printing system, each print job intended to consume supply material from at least one supply material container from a plurality of supply material containers in the printing system, the method comprising the steps of scheduling the plurality of print jobs in time, scheduling maintenance actions in time, for each supply material container establishing a supply material level in the supply material container before printing the plurality of print jobs, for each supply material container calculating a job consumption of supply material from the supply material container for each scheduled print job, for each supply material container calculating a maintenance consumption of supply material from the supply material container for each scheduled maintenance action, and for each supply material container calculating at which print job the supply material level of the supply material container reaches a zero supply material level in the supply material container taking into account the calculated job consumption of the supply material in the supply material container and taking into account the calculated maintenance consumption of the supply material in the supply material container. The invention also relates to a print system suitable for applying the method.
The invention relates to a print system comprising a plurality of printers for printing print jobs, a user interface screen connected to the print system, each printer of the plurality of printers comprising a print job scheduling module for planning a print job schedule for print jobs submitted to the printer and an operational action scheduling module for planning an operational action schedule of operational actions to be applied to the printer, a control unit comprising a first merging module for merging for each printer the print job schedule and the operational action schedule into a first merged schedule, the control unit configured to control for each printer display of the first merged schedule on the user interface screen, wherein the control unit comprises a second merging module for merging the operational action schedules of the plurality of printers chronologically into a second merged schedule, and the control unit is configured to control display of the second merged schedule along the first merged schedule on the user interface screen. The invention further relates to a method to be applied in the print system.
The present invention relates to an ink composition comprising a dispersion of resin particles in water, a colorant and a co-solvent fraction for stabilizing the dispersion, wherein the co-solvent fraction comprises a branched polyhydric alcohol, and between 0.1 and 5 weight% poly vinyl pyrrolidone having a weight average molecular weight of at least 5000 g/mol. Such ink compositions show improved robustness on a range of print substrates. In this way robust look and feel films can be realized also on less absorbing media, like the offset coated gloss, silk and matt ones with a better freedom towards recipe variation of e.g. latex and the concentrations of the ingredients.
A flatbed printer assembly comprises a medium support table for supporting a recording medium, the table extending in a first direction and a second direction, the first direction being perpendicular to the second direction; a gantry arranged to be moveable over the medium support table in the first direction; a carriage support movably arranged on the gantry to move over the medium support table in the second direction; a carriage configured to be detachably coupled to the carriage support; a carriage station for holding the carriage, when such carriage is detached from the carriage support; wherein the carriage support is configured to engage and disengage the carriage at the carriage station.
B41J 3/28 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes
The present invention relates to a plasma generating device. The plasma generating device comprises a first plasma electrode and a counter electrode facing each other. The first plasma electrode extends in a lateral direction and comprises two projections. Each of the two projections protrudes from the first plasma electrode in the direction of the counter electrode over a predetermined distance. The plasma generating device further comprising a preload mechanism adapted for urging each of said two projections of the first plasma electrode against the counter electrode. The two projections cooperatively define a plasma gap between the first plasma electrode and the counter electrode. The counter electrode comprises a support surface facing said plasma gap. Said support surface is substantially flat along the plasma gap.
The invention relates to a printing system and a method for automatically processing a plurality of sheets by means of printing and finishing on the printing system, the method comprising the steps of receiving printing instructions for printing the plurality of sheets, receiving finishing instructions for finishing the plurality of sheets after printing in order to form a stack of printed and finished sheets, the stack having a stack height, the finishing instructions comprising an instruction to create a new target stack edge extending in a direction of the stack height at an intended position on each of the plurality of sheets, printing a mark on each sheet of a group of sheets out of the plurality of sheets, the mark intended to hit the new target stack edge in a group of at least one target hit point, finishing the plurality of printed sheets according to the finishing instructions creating a new actual stack edge, wherein a plurality of actual hit points of the plurality of marks, each of the plurality of actual hit point hitting the new actual stack edge and corresponding to one hit point out of the group of at least one target hit point, form a pattern on the new actual stack edge, the pattern extending in a direction of the stack height and comprising a continuous proportional indication for a degree of correctness of the printing on the plurality of sheets and/or the finishing of the plurality of printed sheets.
A mounting structure for a plurality of print head units (10), comprising: - a frame (12); - a rigid support (14) mounted on the frame (12), said support (14) having a plurality of mounting sites (28) each of which is adapted to hold an individual print head unit (10); and - an adjusting system for positional adjustment of the print head units relative to the frame, characterized in that each mounting site (28) has at least one adjusting mechanism (30, 32) for individually adjusting, in at least one degree of freedom, a position of the print head unit (10) that is held in that mounting site.
The invention relates to a method for printing a digital document on a plurality of cut sheets arranged in a cut sheet printing sequence order resulting in at least one reader spread in an end product, each cut sheet having a first side and a second side, the at least one reader spread consisting of two neighboring sides, each neighboring side of which is of a different cut sheet of the plurality of cut sheets and is intended to be printed upon by a digital page image of the digital document, wherein the method comprises the step of for each reader spread in an end product printing each digital page image corresponding to the reader spread on the first side of the corresponding cut sheet or printing each digital page image corresponding to the reader spread on the second side of the corresponding cut sheet. The invention also relates to a cut sheet printing system configured to apply the method.
A sheet transport system comprising an endless carrier belt (12) that has a predetermined stiffness and is arranged to carry the sheets (P) towards an end (38) of a conveyer path where the sheet is separated from the carrier belt by passing this belt around a separating member (40) that has a predetermined curvature, wherein the carrier belt (12) runs in parallel with an endless conveyer (14) that has a larger stiffness than the carrier belt (12) and, at the end (38) of the conveyer path, has a smaller curvature than the separating member (40).
B65H 29/56 - Article strippers, e.g. for stripping from advancing elements for stripping from elements of machines
B65H 29/16 - Delivering or advancing articles from machines; Advancing articles to or into piles by contact of one face only with moving tapes, bands, or chains
B65H 29/24 - Delivering or advancing articles from machines; Advancing articles to or into piles by air-blast or suction apparatus
The invention comprises a method of compensating a failing nozzle of a print head of an inkjet printer, the inkjet printer comprising at least one print head, the at least one print head comprising a plurality of nozzles, wherein a receiving material is moved relatively to the at least one print head, wherein the method comprises the steps of ejecting droplets of marking material from the plurality of nozzles onto the receiving material forming dots of an image, scanning the printed dots, analyzing the scanned dots for detecting whether a nozzle is failing, determining a group of nozzles which group most likely contains the nozzle that is failing, selecting one nozzle of the group of nozzles, in an image part ejecting compensating droplets of marking material in accordance with a compensation scheme selected as if said one nozzle is failing, scanning the image part, repeating the previous two steps for each other nozzle in the group of nozzles, analyzing each image part, selecting from the image parts a deviating image part, the deviating part having a highest or lowest print quality of all image parts,selecting a compensation scheme based on the deviating image part, and proceeding with printing, including ejecting compensating droplets in accordance with the selected compensation scheme. The invention also comprises an inkjet printer configured to execute the method.
The invention relates to an ink composition, the ink composition comprising a pinning agent. The pinning agent provides the ink composition with thermogelling behavior. The invention further relates to a pinning agent suitable for an ink composition. The invention further relates to a method for applying an image to a receiving medium using an ink composition comprising a pinning agent.
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
The present invention relates to an aqueous ink composition comprising a low molecular weight gelling agent, for example an organic amineoxide, in particular octadecyldimethylamine oxide. The invention further relates to a method of printing such an ink composition.
A MEMS chip having at least two chip components (12, 14, 16) bonded together by means of an adhesive layer (24, 34) that is applied to at least one of two mating bonding surfaces (22, 48; 30, 54) of the two components, wherein a pattern of finely distributed micro-cavities (50) is formed in at least one of the two mating bonding surfaces (48, 54), said micro-cavities being arranged to accommodate a major part of the adhesive.
An inkjet printing apparatus comprises an inkjet print head arranged to be moveable in a direction of movement along a guiding assembly. The guiding assembly comprises a support structure; a strip mounted on the support structure, the strip being rigidly straight in a first direction substantially perpendicular to the direction of movement and mounted in such way that a straightness in the direction of movement is provided; and an air bearing system operatively coupled to the strip. The strip extends in a vertical plane, the vertical plane being substantially parallel to the direction of movement and being substantially parallel to the first direction. The air bearing system is configured to control a position of the inkjet print head in a horizontal plane relative to the strip during movement of the print head in the direction of movement, the horizontal plane being substantially perpendicular to the vertical plane. Employing such a strip and a suitable mounting method for mounting the strip on the support structure, it is enabled to select a cost-effective and/or light-weight support structure.
An inkjet printing apparatus comprises an inkjet print head arranged to be moveable in a direction of movement along a guiding assembly. The guiding assembly comprises a support structure; a strip mounted on the support structure, the strip being substantially rigid and straight in a first direction substantially perpendicular to the direction of movement and mounted in such way that a straightness in the direction of movement is provided; and an air bearing system operatively coupled to the strip. The strip extends in a vertical plane, the vertical plane being substantially parallel to the direction of movement and being substantially parallel to the first direction. The air bearing system is configured to control a position of the inkjet print head in a horizontal plane relative to the strip during movement of the print head in the direction of movement, the horizontal plane being substantially perpendicular to the vertical plane. Employing such a strip and a suitable mounting method for mounting the strip on the support structure, it is enabled to select a cost-effective and/or light-weight support structure.
The invention relates to cooling of a print head in an inkjet printer. In particular, the invention relates to a method for determining functioning of a print head cooler. Further, the invention also relates to an assembly of a print head and a print head cooler.
B41J 2/045 - Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
B41J 2/155 - Arrangement thereof for line printing
74.
SCROLLING SYSTEM FOR A ROLL OF PRINTED MEDIA AND A METHOD THEREFOR
The invention relates to a scrolling system for scrolling a printed roll of media comprising a mechanical scrolling apparatus and a user interface device (8A-8C), the mechanical scrolling apparatus comprising a first winder (1A) for placing the printed roll and from which first winder (1A) the printed roll is unwindable, a second winder (1B) for winding up the printed roll unwound from the first winder (1A), wherein at least one winder of the first and second winder (1Α,1Β) is drivable by a motor, an unwound area (4) at which a piece of the printed roll is unwound from the first winder (1A) and not yet wound up on the second winder (1B), and the user interface device (8A-8C) configured to receive a selection of a part of a digital representation of images printed on the roll, wherein upon receiving a selection of the part of the digital representation of the images printed on the roll by means of the user interface (8A-8C) device the motor is activated in order to scroll the printed roll by means of the two winders (1Α,1Β) until a piece of the printed roll arrives in the unwound area (4), which piece of the printed roll corresponds to the selected part of the digital representation. The invention also relates to a method to be applied by the scrolling system.
G09F 11/29 - Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the advertising or display material forming part of a moving band, e.g. in the form of perforations, prints, or transparencies of a band other than endless
G09F 11/32 - Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being fed one by one from a storage place to a display position the feeding means comprising belts or chains, e.g. endless belts or chains
The present invention relates to an ink composition which is solid at room temperature and liquid at a higher temperature, comprising a substantially non-aqueous carrier composition and at least one dye which comprises at least one salt of the anthrapyridone series, wherein the ink composition comprises an organic sulfonic acid compound.
C09D 11/328 - Inkjet printing inks characterised by colouring agents characterised by dyes
C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
76.
ELECTRONIC BEACON, USE OF THE ELECTRONIC BEACON, A PRINT SYSTEM COMPRISING AN ELECTRONIC BEACON AND A METHOD FOR AN ELECTRONIC BEACON IN A PRINTED PRODUCT PRODUCTION PROCESS
The invention relates to an electronic beacon for use in a print system, the print system connected to an at least partially wireless network system and comprising production modules for producing intermediate products and/or end products according to a print job for the print system, wherein 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 resulting from the print job or a physical end product resulting from the print job, the electronic beacon comprising activating means for activating and deactivating the electronic beacon, memory means for storing a link to the print job, when the electronic beacon is activated, signaling means 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, (detecting means to detect that a mobile device is in the neighborhood of the electronic beacon, when the electronic beacon is activated,) wherein upon detection that a mobile device and an electronic beacon are in each other's neighborhood (by the detecting means of the electronic beacon or by detecting means of the mobile device), a link of a print job selected on the mobile device is sent via the network system to the memory means of the electronic beacon upon activation of the electronic beacon, a link of a print job stored in the memory means of the electronic beacon is sent via the network system to the mobile device, and a link of a print job stored on the electronic beacon is deleted from the memory means of the electronic beacon upon deactivation of the electronic beacon, and wherein the electronic beacon is placed on top of or inserted in the physical intermediate product or a physical end product after the physical intermediate product respectively the physical end product is processed by a production module, and the electronic beacon is removed from the physical intermediate product before the physical intermediate product is processed by a next production module.
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.
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 slidable 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.
The invention relates to a method for processing a print job according to print job specifications by means of production steps on a printing system, the printing system comprising 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 comprises the steps of 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. The invention further relates to a printing system for carrying out the method of the invention.
The invention relates to a method for applying an image onto a receiving medium using an ultraviolet curable phase change ink. The method comprises the steps of pre-curing the ultraviolet curable ink and post-curing the ultraviolet curable ink. The invention further relates to an ink jet apparatus configured to perform the above mentioned method.
An inkjet print head for expelling a droplet of a fluid through a nozzle orifice comprises a fluid channel for holding a channel amount of fluid, the fluid channel comprising a pressure chamber in fluid communication with the nozzle orifice and a piezo actuator. The piezo actuator comprises an active piezo stack, which stack comprises a first electrode, a second electrode, and a piezo-material layer arranged between the first and the second electrode, and the piezo actuator comprises a membrane having a first side and a second side, the second side being opposite to the first side. The active piezo stack is provided at the first side and the pressure chamber at the second side such that the membrane forms a flexible wall of the pressure chamber. The fluid channel, when holding the channel amount of fluid, has a fluid compliance and the piezo actuator has an actuator compliance. In accordance with the present invention, the actuator compliance is larger than the fluid channel compliance such to have a high energy coupling efficiency and consequently a low power dissipation.
The invention relates to a method for jetting a droplet of an electrically conductive fluid. In the method, a Lorentz force is generated in the electrically conductive fluid. The Lorentz force is directed into an actuation direction. The actuation direction is a direction opposite to the droplet ejection direction. The present invention further relates to a jetting device for printing a droplet of an electrically conductive fluid.
H05K 3/10 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
Device for receiving a reprographic job comprising a first processing step on a media by a first processing apparatus and a second, subsequent processing step on the media by a second processing apparatus, wherein the media that are to be output by the first processing apparatus are to be subjected to media handling operations between the first processing step and the second processing step comprising unloading from the first processing apparatus, intermediate media handling operations, and loading in the second processing apparatus; the device comprising: a controller arranged for creating or receiving the reprographic job; the controller being further arranged to access a storage storing configuration information on the second processing apparatus, the configuration information relating to loading media in the second processing apparatus; wherein the controller is arranged to specify the first processing step in the first specification in the reprographic job in order to simplify the media handling operations.
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 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 elevation channel values. The invention also relates to a computer product and a printer system for applying the method.
B41M 5/00 - Duplicating or marking methods; Sheet materials for use therein
B41J 11/00 - Devices or arrangements for supporting or handling copy material in sheet or web form
B41J 3/407 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
85.
METHOD FOR APPLYING AN IMAGE OF A RADIATION CURABLE PHASE CHANGE INK
The invention relates to a method for applying an image onto a receiving medium, wherein the gloss of the image is controlled by controlling the temperature of the receiving medium. The invention further relates to an ink jet apparatus. The invention further relates to a method for determining a job setting of a print job for obtaining an image having a desired gloss level.
A flatbed printer and a method for printing by means of a flatbed printer comprising a flatbed surface for placing media to be printed upon, a control unit for controlling the printing of digital images on the media, a camera-projector system connected to the control unit and situated above the flatbed surface and connected to the control unit, and a print head for ejecting recording material on the media, the method comprising the steps of detecting an arbitrary position, an arbitrary shape, an arbitrary size and/or an arbitrary thickness of a media on the flatbed surface by means of a camera of the camera-projector system, projecting a digital image on the media by means of a projector of the camera-projector system, and printing the digital image on the media according to the projection by moving the print head over the flatbed surface.
The invention relates to a method for printing a digital image on a piece of media by means of a printer system comprising a printer and a computer for storing digital objects, the method comprising the steps of printing at least one digital image on a piece of media, cutting the printed at least one digital image out of the piece of media, attaching an identifying object to the leftover of the piece of media, storing the leftover of the piece of media in a depository, and storing a digital object representing the leftover of the piece of media in a database on the computer, wherein the digital object comprises a reference to the attached identifying object. The invention also relates to a method for printing a print job on a printer system, the method comprises the steps of submitting a print job for printing at least one digital image to the printer system, selecting a digital object from a database comprising digital objects representing a collection of leftovers of pieces of media in a depository and each comprising a reference to an identifying object of the corresponding leftover, wherein the leftover represented by the selected digital object is large enough to print the at least one digital image upon said leftover, retrieving the reference from the selected digital object, locating in the depository the leftover represented by the digital object by means of the retrieved reference, and printing the at least one digital image on the leftover.
Print head mounting assembly for mounting and positioning an inkjet print head on a print head support structure. The print head mounting assembly comprises a first clamping mechanism for clamping the inkjet print head in a first direction and a second clamping mechanism for clamping the inkjet print head in a second direction, the second direction being substantially perpendicular to the first direction. In order to ease adjustment of the position of the print head, the second clamping mechanism comprises an adjustment mechanism for adjusting the position of the print head in the second direction and a release mechanism for releasing the first clamping mechanism, the release mechanism being arranged that the release mechanism is to be operated for operating the adjustment mechanism.
The present invention relates to a method of printing an aqueous ink on a recording substrate. The aqueous ink composition comprises particles of a water dispersible colorant and has a pH of between 8 and 12. The method comprising the steps of: a) pretreating the recording substrate by at least partial acidification of the recording substrate, the at least partial acidification being performed by subjecting the recording substrate to a gaseous acid or by subjecting the recording substrate to a plasma treatment; and b) imagewise printing the ink composition on the pretreated recording substrate.
A method of surface pre-treatment of a variety of ink-receiving substrates (12, 14, 16) of different types, wherein treatment energy is applied to the surface of the substrates in a controlled atmosphere that contains nitrogen and oxygen, and the amount of energy per surface area is adjusted dependent upon the type of substrate, characterized by a step of adjusting the ratio of oxygen to nitrogen in the controlled atmosphere dependent upon the type of substrate.
A sheet handling apparatus having a sheet input section (22), a sheet processing section (24), a sheet output section (26), a conveying mechanism (36) adapted convey sheets (12,14) from the input section (22) through the processing section (24) to the output section (26), and a controller (40) for the conveying mechanism (36), wherein the controller (40) is adapted to be switched between a feed through mode, in which the sheets (12, 14) are output by being fed through from the processing section (22) to the output section (26), and a rewind mode, in which the sheets are output by being fed in reverse direction from the processing section (24) back to the input section (22).
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 a contact layer. The contact layer is electrical conductive and is substantially non-metallic. At least one of the contact layers has an embossed contact surface. 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.
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.
The invention relates to an ink composition comprising a water-dispersed resin a water dispersible colorant and water and wherein the ink composition further comprises a co-solvent, wherein the co-solvent is selected from the group consisting of saccharides and co-solvents comprising a ring structure, wherein the ring structure comprises a 5-membered, a 6-membered or a 7-membered ring. Additionally, the ink composition comprises a cyclodextrin compound. The invention further relates to a method for preparing such ink compositions and to a method for applying an image onto a receiving medium using such ink composition.
The invention relates to an ink composition comprising a pigment, an aqueous vehicle, a host compound having a cavity and a surface active agent, wherein the surface active agent is capable of binding to the cavity of the host compound. The invention further relates to a method for preparing such ink compositions and to a method for applying an image onto a receiving medium using such ink composition.
The present invention relates to an ink set comprising a first ink composition and a second ink composition, the ink compositions comprising a silicone surfactant, the total concentration of silicone surfactants in the ink compositions being different in order to control bleeding of the ink compositions into each other.
A liquid container comprising a box (10) and a flexible bag (12) accommodated in the box and containing a liquid and having a first end (28) fixed at the box (10) and a second end (30) opposite to the first end (28) and biased in a direction away from the first end by an elastic member (32), characterized in that the box (10) has two parts (14, 16) that are telescopically movable relative to one another and are biased apart by the elastic member (32), and the bag (12) is held at one of these parts(16) with its first end (28) and at the other of these parts (14) with its second end (30).
The invention relates to a method of establishing a time interval between maintenance actions expressed in pages for a printing device, the method comprising the steps of determining the number of pages of an incoming print job, comparing the determined number of pages to a predetermined time interval between the maintenance actions expressed in pages, changing the predetermined time interval into at least one new time interval between the maintenance actions expressed in pages based on the comparison, printing the incoming print job, and carrying out at least one maintenance action after the start of printing of the incoming print job according to the at least one new time interval. The invention relates to a printing device having a print unit and a print controller for planning maintenance actions on the print unit according to a method according to any of the claims 1 - 10.
The present invention relates to a printing apparatus for printing on a print substrate. The printing apparatus comprises: a printing station comprising a printing assembly for printing a first image on a first side of the print substrate during a first pass of the print substrate and printing a second image on a second side of the print substrate during a second pass of the print substrate; an input station for supplying the print substrate to the printing station; an output station for receiving the print substrate from the printing station, the output station comprising: a carrousel, the carrousel comprising at least two roll-up units, the carrousel being movable in a plurality of positions, in each of which a first roll-up unit of the at least two roll-up units is arranged in a substrate receiving position and a second roll-up unit of the at least two roll-up units is arranged in a position of the group of a substrate feeding position and a roll unloading position, wherein the roll-up unit in the substrate receiving position is adapted for receiving the print substrate, thereby forming a roll,and wherein the roll unloading position is different in location from the substrate receiving position.
B41J 3/60 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
The invention relates to a method for assigning an identification to at least one sheet (50) to be removed from an input holder (14A...14D) of an image reproduction apparatus (12), the method comprising the steps of detecting a trigger of removal of the at least one sheet from the input holder, and upon detection of the trigger, retrieving characteristics of the at least one sheet and printing an identification sheet (40) comprising the retrieved characteristics for addition on top of the at least one sheet after removal of the at least one sheet from the input holder. The invention also relates to an image reproduction apparatus configured to execute the method according to the invention.
patents
