A device for controlling a printing temperature of an ink in a print head of a system for inkjet printing includes a heat exchanger with a first channel for ink and a second channel for a temperature control fluid; a chiller for heating and/or cooling the temperature control fluid; an ink circuit that is configured to pump ink through the heat exchanger and into the print head; and a temperature control fluid circuit that is configured to pump the temperature control fluid through the chiller and the heat exchanger. The device is configured to heat and/or cool the temperature control fluid with the chiller such that a temperature of the ink is set within a predetermined temperature range. At least one heating element is provided at the heat exchanger to heat the temperature control fluid and the ink to more rapidly set the ink within the predetermined temperature range.
B41J 29/377 - Dispositions pour le refroidissement ou la ventilation
F24H 1/00 - Appareils de chauffage de l’eau, p. ex. chauffe-eau, chauffe-eau instantanés en continu ou chauffe-eau à accumulation
F25B 13/00 - Machines, installations ou systèmes à compression, à cycle réversible
F28D 9/00 - Appareils échangeurs de chaleur comportant des ensembles de canalisations fixes en forme de plaques ou de laminés pour les deux sources de potentiel calorifique, ces sources étant en contact chacune avec un côté de la paroi d'une canalisation
H05B 3/36 - Éléments chauffants ayant une surface s'étendant essentiellement dans deux dimensions, p. ex. plaques chauffantes flexibles, p. ex. grillages ou tissus chauffants le conducteur chauffant enrobé dans un matériau isolant
Provided is a device for printing to a recording medium, as well as a device for turning a recording medium, respectively include a transport roller that includes a base body on the surface shell of which a protective layer is formed. The protective layer includes at least one ruthenium layer. A method for producing a protective layer on a portion of the surface of the base body of a transport roller includes at least the application of a ruthenium layer onto the base body.
C23C 18/16 - Revêtement chimique par décomposition soit de composés liquides, soit de solutions des composés constituant le revêtement, ne laissant pas de produits de réaction du matériau de la surface dans le revêtementDépôt par contact par réduction ou par substitution, p. ex. dépôt sans courant électrique
B41J 13/076 - Conception des cylindresLeurs paliers
The present invention relates to a method for cooling down a printer comprising an endless cleaning member and an endless image transfer member. The invention further relates to a printer comprising an endless cleaning member and an endless image transfer member The invention further relates to a software product.
G03G 21/20 - Commande de l'humidité ou de la température
G03G 15/16 - Appareils pour procédés électrographiques utilisant un dessin de charge pour transférer un dessin à un second support d'un dessin de teinte, p. ex. dessin de poudre
4.
RADIATION-CURABLE INK COMPOSITION, METHOD FOR PREPARING THE SAME AND METHOD FOR APPLYING AN IMAGE ONTO A RECORDING MEDIUM
The present invention relates to a radiation-curable ink composition. The present invention further relates to a method for preparing a radiation-curable ink composition. In addition, the present invention relates to a method for applying an image onto a recording medium.
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
C09D 11/32 - Encres pour l'impression à jet d'encre caractérisées par des agents colorants
An electronic circuit for driving an individual print element in a print head is disclosed. The print head comprises an array of print elements, each print element having a piezo-electric actuator that is capable of generating an acoustic wave in an ink chamber of the print element, resulting in the ejection of an ink drop out of a nozzle that is in fluid connection with the ink chamber. The electronic circuit comprises a number of analog drivers for amplifying an output current at a voltage level in-between two source voltage levels, wherein the drivers can be switched into a tristate condition at a voltage level that does not equal one of the source voltage levels.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
A printing system and a method for printing a test chart by the printing system having a media input holder, a media output holder, a print engine and a print controller. The method includes receiving print data of a print job to be printed by the printing system, establishing a job type of the print job, upon establishing the job type to be a test chart type, establishing media properties of the print job, determining a first amount of empty sheets for the test chart which sheets have the established media properties and are suitable to serve as backing sheets for the test chart in a further analysis of the test chart when printed, the print engine producing the test chart by printing the print data of the print job on a sheet having the established media properties transported from the media input holder to the print engine, receiving the printed sheet in the media output holder, and automatically depositing the determined first amount of empty sheets before or after the printed sheet in the same media output holder, wherein the first amount of empty sheets is automatically transported from the media input holder to the media output holder.
A method for maintenance of a print head of an inkjet printer, the print head comprising a nozzle surface (or plate) with a plurality of ink nozzles for jetting ink, wherein the method comprises the steps of purging the plurality of ink nozzles at least once, and performing a contact wipe over the nozzle surface (or plate) with a contact pressure such that the contact wipe barely touches the nozzle surface (or plate), with a wet tissue comprising a wetting liquid, with vacuum pressure provided by an air pressure support unit. The invention also relates to an inkjet printer configured to execute the method.
Method for printing a plurality of layers of an object on a surface in an XY plane in a print direction in the XY plane in at least one pass of at least one printhead of a printing system relatively over the surface per layer, while ejecting filling material from nozzles of the at least one printhead towards the surface. nozzle distances between the nozzles of the at least one printhead determine a first resolution in a direction perpendicular to the print direction. The at least one printhead is rotatable parallel to the XY plane. Specifications of the object are received which define the object to be printed with a second resolution in the direction perpendicular to the print direction, which second resolution is higher than the first resolution. At least one of the at least one printhead is rotated parallel to the XY plane such that projections of the nozzle distances on a direction perpendicular to the print direction correspond to the second resolution. The plurality of layers of the object are printed with the second resolution by ejecting filling material from the nozzles of the at least one rotated printhead towards the surface.
B29C 64/112 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p. ex. dépôt d’un cordon continu de matériau visqueux utilisant des gouttelettes individuelles, p. ex. de buses de jet
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
A test pattern is described for detecting an impaired nozzle of an inkjet printing device. The test pattern has a matrix with matrix points. The columns of the matrix differ from one another such that a lateral offset of up to ±V columns can be detected and compensated for due to the differently designed columns. An impaired nozzle can thus be particularly reliably and robustly detected.
B41J 2/21 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre pour l'impression à plusieurs couleurs
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
B41J 29/393 - Dispositifs de commande ou d'analyse de l'ensemble de la machine
10.
Test Pattern for Detecting an Impaired Nozzle With Transverse Offset
A test pattern is described for detecting an impaired nozzle of an inkjet printing device. The test pattern has a matrix with matrix points. The printed matrix points in the individual columns respectively exhibit a defined spacing relative to one another in the row direction. An impaired nozzle with transverse offset can thus be particularly reliably and robustly detected.
B41J 2/21 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre pour l'impression à plusieurs couleurs
Provided is a controller for regenerating a print head of an inkjet printing device. The controller is configured to convey ink out of the print head via the nozzle openings of one or more nozzles of the print head, and to subsequently convey said ink into the print head again, in order to efficiently and reliably remove deposits from the nozzle plate of the print head.
B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
B41J 2/17 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre
Provided is a device for adjusting the height of a print bar of an inkjet printing device. The printing device has a cleaning sled for cleaning the one or more print heads of the print bar. A controller including a processor is configured to determine, using a sensor unit, clearance information with regard to the clearance between the cleaning sled and the print bar at different measurement points, and to adjust the height of the print bar depending on the determined clearance information. A precise adjustment of the print bar can thus be effected for a qualitatively high-grade and gentle cleaning.
Deformation is reduced or prevented in a printed print medium during steam treatment by a print medium treatment device for a printer. The print medium treatment device includes a steam treatment unit for treating a first side of a print medium with steam, the steam treatment unit including a steam generator connectable to a steam chamber; and a conveyor for transporting the print medium through the steam chamber. The conveyor includes a holding device for engaging a second side of the print medium opposite the first side, such that the print medium is flattened against the conveyor.
The present invention relates to a polymer. In particular, the present invention relates to a polyester polymer. The present invention further relates to a polymer dispersion and an ink composition prepared from said dispersion. The present invention further relates to a method for preparing said polymer, a method for preparing said polymer dispersion as well as a method for preparing said ink composition. In addition, the present invention relates to a printed product. The present invention further relates to a method for printing and to use of a polymer for preparing an ink composition.
The present invention relates to a radiation-curable ink composition. The present invention further relates to a method for preparing a radiation-curable ink composition. In addition, the present invention relates to a method for applying an image onto a recording medium.
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
B41M 7/00 - Traitement ultérieur des travaux imprimés, p. ex. chauffage, irradiation
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
16.
METHOD FOR OPERATING A PRINTING APPARATUS, PRINTING APPARATUS AND SOFTWARE PRODUCT
The present invention relates to a method for applying an image onto a receiving medium, wherein the image is applied onto the recording medium (15) by depositing a UV-curable ink (17) and the ink is irradiated with radiation (10a, 10b), wherein the radiation comprises two types of UV radiation (10a, 10b). The present invention further relates to a printing apparatus and a software product.
In a method for operating a printing apparatus and an printing apparatus suitable for performing such a method, the printing apparatus includes a page-wide curing array including a number of individually controllable units. The individually controllable units are operable in at least two modes, the at least two modes being an Off mode and an On mode.
B41J 2/45 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'irradiation sélective d'un matériau d'impression ou de transfert d'impression utilisant des ensembles de sources de rayonnement utilisant des ensembles de diodes émettrices de lumière
B41J 2/47 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'irradiation sélective d'un matériau d'impression ou de transfert d'impression utilisant la combinaison du balayage et de la modulation de lumière
18.
METHOD FOR OPERATING A PRINTING APPARATUS, PRINTING APPARATUS AND SOFTWARE PRODUCT
The present invention relates to a method for operating a printing apparatus and an printing apparatus suitable for performing such a method. In particular the present invention relates to a method for operating a printing apparatus, the printing apparatus comprising a page-wide curing array, the printing apparatus being operable in at least a gloss mode and a matt mode.
The present invention relates to a method for operating a printing apparatus and an printing apparatus suitable for performing such a method. In particular the present invention relates to a method for operating a printing apparatus, the printing apparatus comprising a page-wide curing array, the printing apparatus being operable in at least a gloss mode and a mixed matt-gloss mode.
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
B41J 3/407 - Machines à écrire ou mécanismes d'impression ou de marquage sélectif caractérisés par le but dans lequel ils sont construits pour le marquage sur des matériaux particuliers
20.
REGISTRATION OF DUPLEX PRINTED SHEETS IN A SHEET STACKING DEVICE
A method of printing and stacking sheets improves the relative alignment of images in a stack of printed sheet. The method includes feeding a sheet at least twice past a printhead assembly for printing an image on both sides of the sheet, wherein in the first and second passes the respective front and back images are aligned with respect to a first edge of the sheet by detecting a skew angle between the first and second edges and applying the skew angle to align the front and back images; and stacking the sheet, wherein the sheet is registered to a predetermined stacking reference direction by one of its edges, and wherein during the stacking, the sheet is registered by its first edge.
B41J 3/60 - Machines à écrire ou mécanismes d'impression ou de marquage sélectif caractérisés par le but dans lequel ils sont construits pour l'impression recto-verso du matériau d'impression
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
21.
METHOD FOR QUEUEING PRINT JOBS TO BE PRINTED ON RIGID PRINT MEDIA
A method for a printer including a transport device including an endless transport belt supported on a pair of support rollers, which between them define a medium support plane, over which medium support plane a print station is provided. The method includes transporting in parallel a plurality of individual print media perpendicular to a scanning direction of the print station on the medium support plane, the print media having different dimensions; determining positions of the individual print media based on the determined positions; and jetting marking material for forming a designated image specific for each print medium on each respective print medium. The above steps are repeated such that print media are printed in a plurality of parallel lanes on the medium support plane perpendicular to the scanning direction. The printer is provided with a plurality of guiding bars extending in the transport direction and positioned at a side of at least one lane of the plurality of parallel lanes in order to guide the individual print media into one of the plurality of parallel lanes. The printer includes a print controller for controlling the print process for a digital image to be printed, the print controller including two print queues for receiving digital images to be printed by the printer. It is established if the digital image requires to be right aligned or left aligned along a guiding bar. In case of a required left alignment, the digital image is added to a first print queue of the two print queues. In case of a required right alignment, the digital image is added to a second print queue of the two print queues.
An inkjet printing device for printing to a recording medium includes a printing unit that has a plurality of print bars that respectively have one or more print heads. The printing device also includes a transfer printing sled to guide the recording medium, which can be moved into and out of a space below the printing unit. In a print operation state, the transfer printing sled is arranged in the space and guides the recording medium during printing. In a maintenance operation state, the transfer printing sled is moved out of the space. The printing device also includes at least one cleaning element for cleaning at least one print head of the printing module.
An inkjet printing device for printing to a recording medium includes a printing unit that has a plurality of print bars that respectively have one or more print heads. The printing device also includes a transfer printing sled to guide the recording medium, which can be moved into and out of a space below the printing unit. In a print operation state, the transfer printing sled is arranged in the space and guides the recording medium during printing. In a maintenance operation state, the transfer printing sled is moved out of the space. The printing device also includes at least one cleaning element for cleaning at least one print head of the printing module.
In the transport direction of the recording medium, the at least one cleaning element is arranged laterally next to the space in the print operation state and in this space in the maintenance operation state.
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
B41J 15/08 - Dispositifs de supports, d'alimentation ou de guidageMontages pour rouleaux ou axes caractérisés par leur application à des systèmes d'impression ayant des chariots se déplaçant transversalement
B41J 29/377 - Dispositions pour le refroidissement ou la ventilation
A method for a printer including a transport device including an endless transport belt, supported on a pair of support rollers which between them define a medium support plane, over which medium support plane a print station is provided. The method includes transporting in parallel a plurality of individual print media perpendicular to a scanning direction of the print station on the medium support plane, the print media having different dimensions, determining positions of the individual print media and based on the determined positions, jetting marking material for forming a designated image specific for each print medium on each respective print medium. The above steps are repeated such that print media are printed in a plurality of parallel lanes on the medium support plane perpendicular to the scanning direction. The method further includes enabling or disabling each individual lane of the plurality of parallel lanes in order to respectively facilitate or block jetting of the marking material at the individual lane.
Method for calibrating an image forming device (100, 200) comprising at least one printhead (2) comprising a plurality of nozzles (21) arranged in a plurality of nozzle rows (al-a8), the image forming device comprises a sensor unit (1) configured to read information from a recording medium (500) on a working area (6). The method enables determination of misalignment of the sensor unit by analyzing a printed reference image without the need of external reference markers. The invention also relates to an image forming device (100, 200).
B41J 2/21 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre pour l'impression à plusieurs couleurs
G06K 15/02 - Dispositions pour produire une présentation visuelle permanente des données de sortie utilisant des imprimantes
25.
Method of selecting and displaying a print job on a user interface
In a method for selecting a print job and displaying the print job on a second window, the print job includes a digital image to be printed on an image receiving medium by a digital printer having a user interface including a first window representing a waiting room for the print job which is selectable to be printed, and the second window for displaying a virtual representation of the image receiving medium. The method includes displaying a corner indication on the second window, the corner indication indicating a location where a top left corner of the digital image of the print job will be placed on the image receiving medium, and selecting the print job in the first window. Upon selection of the print job in the first window, the corner indication is replaced by a canvas item with a size of a layout of the digital image of the selected print job, and the corner indication is moved to a location on the virtual representation where a next to be selected print job will originate. Upon moving or copying the selected print job from the first window to the second window, the canvas item is replaced by a preview image of the digital image of the selected print job of the same size as the layout.
In a method for printing a digital image in swaths with a swath time corresponding to the width of the digital image on the image receiving medium in the main scanning direction, the print controller issues a trigger that a spitting action for at least part of the printing elements of the print head needs to be performed. A swath time of subsequent swaths is gradually increased until the print head reaches a maintenance tray at a side of the print surface. The print head stays at the maintenance tray until air between the print head and the maintenance tray has approximately reached a standstill. Then, at least part of the printing elements of the print head are spitting marking material in the maintenance tray. After the spitting, the swath time of subsequent swaths is gradually decreased until the swath time is corresponding again with the width of the digital image on the image receiving medium in the main scanning direction. A digital inkjet printer is configured to perform the method.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
B41J 2/17 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre
In a method of controlling a digital inkjet printer, the digital printer is arranged to operate in a selected first print mode which includes a first speed in a main scanning direction. A digital image and a print setting that the digital image is planned to be printed in an enhanced adhesion print mode are received. A time period needed for a pass in the main scanning direction is extended by lowering a speed from the first speed to a second speed, and by enlarging the pass width up to a maximum medium width and/or by temporarily stopping the printer at an end of the pass. Marking material is ejected during the pass on the image receiving medium by a print head at the second speed within the extended time period, and is cured by a UV curing device at the second speed within the extended time period.
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
28.
DATA PROCESSING SYSTEM AND A METHOD FOR PROVIDING STATUS INFORMATION OF THE DATA PROCESSING SYSTEM
Method for graphically providing status information of a data processing system having a plurality of disjunct system statuses, wherein the data processing system is monitored during a predetermined period of time. A donut chart is created which has an inner hole region linked to the one particular system status and an outer region having as many segments as the total number of system statuses in the collection minus one. An area size of the inner hole region and an area size of each segment in the outer region is proportional to the amount of time that the corresponding monitored system status occurred during the predetermined period of time.
A device is described that is designed to activate the different heating elements of a drying unit respectively per block within a heating cycle in order to enable an operation of the drying unit that is particularly power-efficient and gentle on the mains.
A method for predicting a service state of a printing machine at a defined point in time includes:
measuring a plurality of successive process values of a process parameter which is an indicator of the functionality of the printing machine;
determining a plurality of successive scatter values which describe the spread of the measured process values within a predetermined time range;
determining a local scatter minimum of the scatter values;
determining a baseline, in that a baseline value is established that correlates with the value of the process parameter at the point in time of the local minimum and that does not change up until a new determination of a baseline; and
determining a health value at a specific point in time, with a predetermined relation of the process value to the baseline value at this point in time. A service state is assessed
upon the health value exceeding a predetermined threshold.
Provided is a device for controlling the printing of a print image with a nozzle of an inkjet printing device. The device is configured to—given the presence of a relatively long printing pause of the nozzle insert one or more print image-independent pre-ejection pulse phases, followed by a print image-dependent pre-ejection pulse phase, between the printing of two successive dots, in order to efficiently and reliably increase the print quality of the printing device.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
Provided is a device for cleaning exhaust air from a printing device by means of a heat exchanger. The device is configured to operate the heat exchanger in a standard phase such that an output temperature of the exhaust air exhibits a standard value such that hydrocarbons are condensed out of the exhaust air. The device is also configured to operate the heat exchanger in a regeneration phase such that the output temperature of the exhaust air exhibits a value. The value is reduced relative to the standard value, such that water is condensed out of the exhaust air.
B41F 23/04 - Dispositifs pour traiter la surface des feuilles, bandes ou autres objets en relation avec l'impression par séchage à chaud, refroidissement ou application de poudres
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
An inkjet print head (10) having a nozzle face (12) arranged form a gap (16) with surface of a media conveyor (14), an air duct (22) and a suction blower (20) arranged to withdraw air from said gap (16), and an array (24) of electrodes arranged to create an inhomogeneous electric field for attracting droplets of an ink mist, characterized in that said array (24) of electrodes is arranged within the air duct (22).
B41J 2/17 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre
A gas impingement unit comprising a gas source (10) and an array (24) of nozzles (20) connected to the gas source (10) and directed onto a support and transport surface (14) arranged for supporting sheet- or web-like media (16) and moving them in a transport direction (A) past the array of nozzles, wherein the nozzles (20) are evenly distributed over an area of the support and transport surface (14), characterized in that said array (24) is an array of interleaved nozzles (20) and vent openings (22), wherein the vent openings (22) are arranged for allowing gas that has been blown out from the nozzles (20) to escape in a direction normal to the support and transport surface (14).
A printer apparatus for recording images having matt portions and glossy portions and a print method for recording images having matt portions and glossy portions onto a porous media are disclosed. The method involves locally applying a support layer and subsequently applying an image portion on top of the support layer.
Provided is a device for determining an empty ink state of an ink container for an ink printing system. The ink container has a rigid outer container and an inner, flexible fluid pouch. The inner fluid pouch is connected via a fluid conduit to a pump that is configured to convey fluid out of the inner fluid pouch. The pump is configured to output an electrical signal whose periodicity is proportional to a rotational speed of the pump. The device has an evaluation unit that is configured to monitor the frequency of the electrical signal and, upon the frequency falling below a predetermined threshold, to output that the ink container is empty.
A printing method includes forming an image by applying marking material onto the surface of a substrate; optionally applying an intermediate layer onto the substrate; subjecting the image to a fixation treatment; applying a layer of an ionically stabilized varnish on the surface of the image; and performing image-wise gloss control by locally varying at least one of a fixation parameter and a primer application parameter.
A printing method comprising the steps of: - forming an image by applying marking material (I) onto the surface of a substrate (14); - subjecting the image to a fixation treatment; and - applying a layer (V) of an ionically stabilized varnish on the surface of the image, wherein, when the image has been formed, a layer of liquid solvent (S) is formed on at least a part of the surface of the image, thereby causing ions to migrate from the marking material (I) into the solvent (S) and then to be absorbed into the substrate (14) together with a part of the solvent before the varnish s applied.
Provided is an evacuation device for an inkjet printing device that is designed to guide a printed recording medium along a transport direction through a constriction with an opposite gas flow, in order to be able to efficiently and comprehensively evacuate ink vapor before the constriction, in terms of the transport direction.
B41J 2/17 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre
40.
METHOD AND PRINTER FOR PRINTING AND CURING AN IMAGE
A method for printing and curing an image uses a printer having a curing unit including at least one controllable radiation emitting unit. The printer includes a medium support configured to, in operation, support the recording medium. The method includes applying a predetermined pattern of a radiation-curable ink composition onto a recording medium to form an image; curing the image in a curing zone, wherein in the curing zone the recording medium covers a first area of the medium support, the medium support further having a second area not covered by the recording medium; controlling the curing unit to be in a curing mode in the first area of the medium; and controlling the curing unit to be in a non-curing mode in the second area of the medium support. A printer and a software product are also disclosed.
Method for a printing system for processing a print job comprising the print data and the plurality of print job settings. Automatically an area of the recording medium is established that is deemed to be removed or made invisible during the at least one finishing action by a finisher. A digital object is retrieved from memory of the printer which is used for checking and monitoring at least one characterization of the desired end product. The print data are printed and also the digital object is printed at the automatically established area.
The present invention relates to an aqueous pre-treatment liquid for use in ink jet printing, the pre-treatment liquid comprising: water; magnesium-sulfate; and a crystallization retarding agent selected from the group consisting of: sorbitol, xylitol, adonitol, β-alanine, proline and γ-aminobutyric acid. The pre-treatment liquid is non-yellowing, non-smelling and does not crystallize upon drying. Prints made by using a pre-treatment liquid according to the present invention in combination with an aqueous ink shows a significant decrease of end-curl after a long period of time.
C09D 11/54 - Encres à base de deux liquides, l’un des liquides étant l’encre, l’autre liquide étant une solution de réaction, un fixateur ou une solution de traitement pour l’encre
C09D 11/40 - Jeux d’encres spécialement adaptés à l’impression à jet d’encre à plusieurs couleurs
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
B41M 5/00 - Procédés de reproduction ou méthodes de reproduction ou de marquageMatériaux en feuilles utilisés à cet effet
43.
Inkjet sheet printer with a sheet stacker comprising a sheet flipping device
To prevent deformation to relatively stiffer sheets during flipping, while ensuring reliable holding of relatively weaker sheets, a method for stacking sheets received from a printer by a sheet flipping device includes at least one slot for receiving a leading portion of a sheet. The method includes determining a respective insertion depth parameter for a first and a second sheet, wherein the second sheet has a greater stiffness than the first sheet; inserting a length of the first sheet into the at least one slot in correspondence with its respective insertion depth parameter, followed by flipping said first sheet; inserting a length (D2) of the second sheet into the at least one slot in correspondence with its respective insertion depth parameter, followed by flipping said second sheet, wherein the inserted length of the first sheet is greater than that of the second sheet.
B65H 29/40 - Éléments tournant autour d'un axe perpendiculaire au sens du déplacement des articles, p. ex. des croisillons formés par des éléments en S
B65H 29/06 - Délivrance ou progression des articles à la sortie des machinesProgression des articles vers ou dans les piles par pinces mécaniques en prise uniquement sur le bord d'attaque des articles les pinces étant portées par des éléments rotatifs
B65H 43/00 - Utilisation de dispositifs de commande de vérification ou de sécurité, p. ex. dispositifs automatiques comportant un élément pour détecter une variable
A method of ink jet printing using an ink jet imaging device including a plurality of nozzles arranged for expelling droplets of an ink by actuation of an ink channel includes the steps of: a) providing a bit map of a spit pattern comprising an arrangement of refresh dots to be printed by each of the plurality of nozzles; and d) printing the bitmap of the spit pattern. The spit pattern includes a plurality of clusters of refresh dots, each cluster including at least two sequential refresh dots expelled from a single nozzle. A spit pattern for use in such a method is disclosed.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
When using a flipping wheel to flip sheets of weak or long media, there is a risk that these sheets collapse upon themselves. To reduce this risk, a method of stacking sheets includes flipping a sheet while holding its leading edge and bringing the leading edge down towards a stack support; bringing a trailing portion of the sheet into contact with a guide member positioned over the stack support; forming an overpressure in an inner volume of the bent sheet during flipping, while its trailing portion is in contact with the guide member; and maintaining the overpressure and contact while a trailing edge of the sheet travels along the guide member.
B65H 29/24 - Délivrance ou progression des articles à la sortie des machinesProgression des articles vers ou dans les piles par appareil à jet d'air ou aspirant
B65H 29/40 - Éléments tournant autour d'un axe perpendiculaire au sens du déplacement des articles, p. ex. des croisillons formés par des éléments en S
B65H 29/22 - Délivrance ou progression des articles à la sortie des machinesProgression des articles vers ou dans les piles par contact avec des éléments rotatifs à friction, p. ex. rouleaux, brosses ou cylindres et introduisant les articles dans une pile
The present invention relates to a print method. In the print method, a first layer of ink is deposited and cured before a second layer is applied. The present invention further relates to a software product. The present invention also relates to an inkjet printing apparatus.
CANON PRODUCTION PRINTING HOLDING B. V. (Pays‑Bas)
Inventeur(s)
Brankaert, Xavier C. M.
Jetten, Robertus G. A.
Baijens, Joris J. M.
Pijnappels, Johannes M.
De Deken, Jeroen H. J.
Gerrits, Antonius M.
Abrégé
A method for processing a print job by a printing system and a finishing system resulting in an end product is disclosed. The printing system includes a print controller. The finishing system is an in-line or near-line finishing system and includes a finishing controller for controlling the finishing process by means of a collection of finishing templates stored in memory of the finishing controller. The printing system and the finishing system are connected via a digital connection. The method includes the steps of the print controller receiving the print job including a plurality of print job settings, the print controller establishing an identifier of a finishing template from the collection of finishing templates in accordance with at least one print job setting of the plurality of print job settings, the print controller sending the established identifier of the finishing template to the finishing system, the finishing controller receiving the established identifier of the finishing template, the printing system printing the print job, the finishing system retrieving the finishing template identified by the received identifier from memory of the finishing controller, and the finishing system finishing the print job according to the retrieved finishing template.
A device for printing to a recording medium with an inkjet printing unit that has at least one nozzle arrangement and is designed to generate a print image on the recording medium. The print image includes at least one test pattern that exhibits at least two different spatial frequencies. The device also has an image acquisition unit that is designed to acquire an image of an acquisition region on the recording medium, which acquisition region includes at least a portion of the test pattern; and a processor that is designed to generate image data corresponding to the image and determine a functional state of the nozzle arrangement, by means of the image data, using a neural network.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
G01R 31/3183 - Génération de signaux d'entrée de test, p. ex. vecteurs, formes ou séquences de test
B41J 29/393 - Dispositifs de commande ou d'analyse de l'ensemble de la machine
49.
SHEET REGISTRATION DEVICE FOR NON-RECTANGULAR SHEETS
When duplex printing non-rectangular sheets of printable media, the sheets require proper registration to prevent misalignment of front and back images. This is ensured by: determining relative orientations of three different edges of a sheet being transported towards print station on a first pass; registering the sheet on the first pass by aligning one of the edges with respect to a predetermined alignment direction; printing a first image on a first side of the registered sheet; flipping the sheet on a second pass; registering the flipped sheet by aligning one of the edges with respect to a predetermined alignment direction; and printing a second image on a second side of the registered, flipped sheet aligned with the first image based on the determined relative orientations.
A print method includes a) applying an activator composition onto a recording medium, the activator composition comprising a photoinitiator; b) applying an inkjet ink composition onto the recording medium, the inkjet ink composition comprising a curable monomer and a gellant, the inkjet ink composition comprising no photo initiator or comprising a photo initiator in an amount of 1.0 wt % or less, based on the total amount of the ink composition; and c) curing the ink and the activator composition. Step c is started within a time period of 2 s-1000 s after applying the ink composition onto the recording medium. an ink set comprising an activator composition and an inkjet ink composition, a software product, and an inkjet printing apparatus are also disclosed.
B41J 2/01 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
B41M 5/00 - Procédés de reproduction ou méthodes de reproduction ou de marquageMatériaux en feuilles utilisés à cet effet
C09D 11/17 - Encres pour écrire caractérisées par des agents colorants
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
C09D 11/54 - Encres à base de deux liquides, l’un des liquides étant l’encre, l’autre liquide étant une solution de réaction, un fixateur ou une solution de traitement pour l’encre
51.
TRANSPORT ROLLER AND CORRESPONDING PRODUCTION METHOD
The invention relates to a device for printing a recording medium (120) and to a device (114, 214) for turning a recording medium (120), each comprising a transport roller (300) which has a base body (310) on the lateral surface of which a protective layer (312) is formed. The protective layer (312) comprises at least one ruthenium layer (174). The invention relates to a method for producing a protective layer (312) on a part of the surface of the base body (310) of a transport roller (300), which comprises at least the application of a ruthenium layer (174) to the base body (310).
To ensure reliable and productive processing of printed sheets into stacks, a sheet stacker includes: a flipping device for flipping a sheet with respect to the sheet's orientation before being received by the flipping device onto a stack support or a stack of sheets on the stack support; a sensor assembly for detecting an out-of-plane deformation of a top sheet with respect to the underlying stack support or a stack of sheets on the stack support at least for each sheet added to the stack; and a controller configured to determine from data from the sensor assembly whether the top sheet was successfully flipped and stacked.
B65H 43/04 - Utilisation de dispositifs de commande de vérification ou de sécurité, p. ex. dispositifs automatiques comportant un élément pour détecter une variable détectant ou réagissant à la présence des articles défectueux
B65H 29/40 - Éléments tournant autour d'un axe perpendiculaire au sens du déplacement des articles, p. ex. des croisillons formés par des éléments en S
B65H 31/18 - Dispositifs mécaniques à action directe
53.
Belt support structure for a conveyor of an inkjet printer
A low cost and low air resistance belt support structure for an endless belt conveyor of an inkjet printer can be achieved with the belt support structure being provided over a suction chamber. The belt support structure includes a plurality of longitudinal, narrow support beams positioned spaced apart from one another and parallel to one another in a transport direction of the belt to define a flat support plane for the belt. The support beams provides a relatively small contact area with the belt, which results in low friction. The support beams further allow for a relatively large open area between them to achieve a low air resistance.
B65H 29/24 - Délivrance ou progression des articles à la sortie des machinesProgression des articles vers ou dans les piles par appareil à jet d'air ou aspirant
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
B65G 15/32 - Courroies ou porte-charges sans fin analogues en caoutchouc ou en matière plastique
B65G 15/60 - Dispositions pour soutenir ou guider les courroies, p. ex. à l'aide de jets de fluide
B65G 21/10 - Châssis ou carters de support ou de protection pour transporteurs sans fin ou éléments de traction des transporteurs à courroies ou à chaînes mobiles ou à pièces interchangeables ou relativement mobilesDispositifs pour déplacer le châssis ou des parties de celui-ci
B65G 21/20 - Moyens incorporés ou fixés au châssis ou aux carters pour guider les porte-charges, les éléments de traction ou les charges portées sur les surfaces mobiles
54.
Sheet conveyor for a printer comprising pressing means for flattening a sheet
CANON PRODUCTION PRINTING HOLDING B. V. (Pays‑Bas)
Inventeur(s)
Egelmeers, Thijs R. N.
Smeyers, Johannes H. L.
Abrégé
The present invention seeks to flatten a sheet when transferred onto an endless belt conveyor facing a print head assembly in a simple and/or low costs manner. Thereto a sheet conveyor is provided comprising an endless, air permeable belt and pressing means. The pressing means comprise a plurality of pressing members spaced apart from one another in a lateral direction of the belt, each pressing member comprising a body which body is moveable in a perpendicular direction with respect to the belt as well rotatable or pivotable around an axis in the perpendicular direction independent of the corresponding bodies of other pressing members. This provides a simple and passive sheet flattening means, resulting in low operational and material costs.
A sheet printer includes a sheet conveyor assembly including a first conveyor with a first holding device configured for exerting a holding force on a sheet proportional to a coverage of the sheet on the first conveyor and a second conveyor upstream of the first conveyor including a second holding device configured for holding and releasing the sheet, a print head assembly positioned over the first conveyor, a detector assembly for sensing the transport of the first conveyor, a controller storing on its memory a sheet media catalogue and configured to control a release timing of the second holding device for releasing the sheet partially engaged by the first conveyor based on a media type parameter selected from the media catalogue and to control the print head assembly to commence printing the sheet based on transport information from the detector assembly.
B65H 5/22 - Transfert des articles retirés des pilesAlimentation des machines en articles par jet d'air ou dispositifs aspirant
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
B41J 13/00 - Dispositifs ou agencements spécialement adaptés pour supporter ou manipuler un matériau de copie en petites longueurs, p. ex. des feuilles
B65H 7/02 - Commande de l'alimentation en articles, de l'enlèvement des articles, de l'avance des piles ou d'appareils associés permettant de tenir compte d'une alimentation incorrecte, de la non présence d'articles ou de la présence d'articles défectueux par palpeurs ou détecteurs
A compact fluid distribution device (130) for a print head assembly (100) is provided, which device allows for the effective removal of gas from the device during operation and purging. The device comprises a fluid chamber (131) with a fluid permeable filter (132) forming a dividing wall in the fluid chamber, such that an inlet (137) is positioned on a first side of the filter and the outlet (135) is positioned on a second side of the filter. The filter is inclined with respect to a first direction parallel to a vertical direction during operation, such that a first volume in the fluid chamber between the filter and a first side wall facing the filter tapers in a direction away from the inlet.
B41J 2/19 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre pour éliminer les bulles d'air
A stacker module includes a lift table, a stacker configured to place sheets that are successively supplied thereto onto the top of a stack forming on the lift table, a controller configured to lower the lift table as the stack grows, a height-adjustable eject table, and an eject mechanism configured to transfer a completed stack from the lift table onto the eject table. The eject mechanism is height-adjustable for transferring stacks onto the eject table in different height positions of the lift table.
B65H 31/10 - Récepteurs de piles avec support d'extrémité mobile disposé pour reculer au fur et à mesure que la pile se forme les articles étant empilés les uns sur les autres et par le sommet de la pile
B65H 31/30 - Dispositions pour enlever les piles achevées
The invention relates to a print system comprising at least two page-wide arrays of ink jet print heads, positioned in a frame over a conveyor belt for transporting a substrate underneath the arrays, three sensors for reading markers on the conveyor belt and a control unit that is configured to derive control signals from encoder signals of the three sensors. Two sensors are directly connected to the frame and a third sensor is connected to one of the said two sensors by an element with virtually no thermal expansion, extending in transport direction. The control signals, comprising signals for controlling a transport speed of the conveyor belt and line pulses for the at least two print heads, are derived in such a way that an amount of thermal expansion of the frame is determined and an absolute print resolution is maintained.
B41J 2/21 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre pour l'impression à plusieurs couleurs
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
59.
Ink printer and method for printing to a recording medium in the form of a web
For printing to a recording medium in the form of a web that is moved in a horizontal direction to the printing position by a web carriage. There, the recording medium is raised up to the print heads. To clean the print heads, a maintenance carriage is used that is moved horizontally into a maintenance position below the print bars. There, a cleaning unit with covering caps is then driven upward to the print heads in order to either place a covering cap onto the print heads or clean the print heads. The web carriage and the maintenance unit are moved only in a horizontal direction while the printing unit remains stationary.
A method and an arrangement for calibrating a delivery rate of an ink pump of a printing device with the aid of an ink container including a sensor unit for detecting at least a first fill level value. Based on the initial fill level of the ink container below the first fill level value, the ink pump conveys ink from an ink reservoir into the ink container up to a final fill level above the first fill level value, so that at least a predetermined volume between the initial fill level and the first fill level value is filled. Upon conveying the ink into the ink container, an ink pump parameter is determined as of reaching the initial fill level and until the first fill level value is reached. A delivery rate of the ink pump is determined based on the predetermined volume and the ink pump parameter.
The invention relates to a suction device (200) for an inkjet printing device (100). Said suction device is designed to guide a printed recording medium (120) along a transport direction (1) through a constriction (202) with a counter-rotating gas flow (204) in order to be able to efficiently and comprehensively suction ink mist (170) in the transport direction (1) upstream of the constriction (202).
B41J 2/17 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre
The invention relates to a suction device (200) for an inkjet printing device (100). Said suction device is designed to guide a printed recording medium (120) along a transport direction (1) through a constriction (202) with a counter-rotating gas flow (204) in order to be able to efficiently and comprehensively suction ink mist (170) in the transport direction (1) upstream of the constriction (202).
B41J 2/17 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre
63.
Drying unit for a printing device for printing with ink to a recording medium in the form of a web
A drying unit for a printing device for printing with ink to a recording medium in the form of a web includes at least one heating element. The recording medium to be dried is movable along an emission region of the heating element. The emission region is arranged angled in the transport direction of the recording medium.
An inkjet printing device (10) for printing onto a web-type recording medium (12) with ink comprises a printing module (M1) having a printing unit (14) which has a plurality of printing bars (16), each of which bars has one or more printing heads. The printing device (10) also comprises a transfer carriage (18) for guiding the recording medium (12), which carriage can be moved into and out of a space (R) below the printing unit (14). In a printing operating state, the transfer carriage (18) is positioned in the space (R) and guides the recording medium (12) during printing. In a maintenance operating state, the transfer carriage (18) is moved out of the space (R). A cleaning module (M9) of the printing device (10) has at least one cleaning element for cleaning at least one printing head of the printing module (M1). The at least one cleaning element is positioned laterally adjacent to the space (R) in the transport direction (T) of the recording medium (12) in the printing operating state, and is positioned in said space (R) in the maintenance operating state.
B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
B41J 29/377 - Dispositions pour le refroidissement ou la ventilation
B41J 15/04 - Dispositifs de supports, d'alimentation ou de guidageMontages pour rouleaux ou axes
B41J 15/06 - Dispositifs de supports, d'alimentation ou de guidageMontages pour rouleaux ou axes caractérisés par leur application à des systèmes d'impression ayant des chariots stationnaires
B41J 15/00 - Dispositifs ou agencements spécialement adaptés pour supporter ou manipuler un matériau de copie utilisé sous forme continue, p. ex. en bandes
A liftable transport pinch is provided with a simplified construction to enhance lifetime and productivity. This transport device includes at least one roller mounted on an arm, and an actuator connected to a frame for moving the roller between a first and second position. The arm is mounted onto the frame by means of an elastic hinge element. The elastic hinge element provides a simple, cheap, wear-resistant, and easy-to-assembly alternative to prior art solutions.
In a method for fixing a print good in a printing system, the print good is a substrate printed to with ink, and the print speed of the print good is initially determined. Air heated to a predetermined temperature is then blown onto the print good. The heated air is supplied with a volumetric flow rate that is adjusted depending on the print speed.
A controller may transition an inkjet printing device, starting from the printing operation, at least predominantly into a continuation mode where the printing is interrupted in which, however, the active tempering of the ink in the one or more print heads of the printing device is continued in order to enable an accelerated restart of the printing operation.
B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
68.
Modular printing bar for an inkjet printing device
A modular print bar may include at least one first print head module and at least one second print head module. Each print head module may include a base plate with which at least one print head can be connected. At least one first ink supply line for supplying ink to the respective print head may respectively run in the base plates. The print head modules may be firmly connected to a print bar such that a connection can be established between the first ink supply line of the first print head module and the first ink supply line of the second print head module.
B41J 2/17 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre
A controller may detect an elevation of a recording medium that is to be printed to, the elevation may result in the printing element of a printing device being negatively affected. The controller may automatically produce a time-limited printing pause of the printing element in which the printing gap between the printing element and the recording medium is temporarily enlarged in order to direct the detected elevation past the printing element. A negative effect on the printing device given the presence of a damaged recording medium may thus be efficiently and reliably avoided or reduced.
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
B41J 29/393 - Dispositifs de commande ou d'analyse de l'ensemble de la machine
70.
Computing device and method for generating a timing signal for a printing device
A computing device for a printing device may include a first transducer for generating a first clock frequency and a second transducer for generating a second clock frequency. The computing device may determine the timing signal for clocking the printing operation of the printing device on the basis of the first clock frequency and/or on the basis of the second clock frequency, in particular to increase the uniformity of the timing signal and/or in order to enable a dynamic adaptation of the timing signal to a changing property of the printing device and/or of the recording medium to be printed to.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
The present invention relates to an aqueous pre-treatment liquid for use in ink jet printing, the pre-treatment liquid comprising: water; magnesium-sulfate; and a crystallization retarding agent selected from the group consisting of: sorbitol, xylitol, adonitol, β-alanine, proline and γ-aminobutyric acid. The pre-treatment liquid is non¬ yellowing, non-smelling and does not crystallize upon drying. Prints made by using a pre-treatment liquid according to the present invention in combination with an aqueous ink shows a significant decrease of end-curl after a long period of time.
C09D 11/54 - Encres à base de deux liquides, l’un des liquides étant l’encre, l’autre liquide étant une solution de réaction, un fixateur ou une solution de traitement pour l’encre
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
C09D 11/40 - Jeux d’encres spécialement adaptés à l’impression à jet d’encre à plusieurs couleurs
The present invention relates to an aqueous pre-treatment liquid for use in ink jet printing, the pre-treatment liquid comprising: water; magnesium-sulfate; and a crystallization retarding agent selected from the group consisting of: sorbitol, xylitol, adonitol, ?-alanine, proline and ?-aminobutyric acid. The pre-treatment liquid is non¬ yellowing, non-smelling and does not crystallize upon drying. Prints made by using a pre-treatment liquid according to the present invention in combination with an aqueous ink shows a significant decrease of end-curl after a long period of time.
C09D 11/54 - Encres à base de deux liquides, l’un des liquides étant l’encre, l’autre liquide étant une solution de réaction, un fixateur ou une solution de traitement pour l’encre
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
C09D 11/40 - Jeux d’encres spécialement adaptés à l’impression à jet d’encre à plusieurs couleurs
The present invention relates to an aqueous pre-treatment liquid for use in ink jet printing, the pre-treatment liquid comprising water and magnesium-disulfamate. Such pre-treatment composition is and yellowing and crystal-free and shows good jetting properties. These properties are retained even when a solid co-solvent is added to the composition for anti-curl improvement. Therefore, the present invention enables providing non-yellowing pre-treatment liquids with good jetting properties and anti-curl behavior.
C09D 11/54 - Encres à base de deux liquides, l’un des liquides étant l’encre, l’autre liquide étant une solution de réaction, un fixateur ou une solution de traitement pour l’encre
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
C09D 11/033 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant caractérisées par le solvant
A method for cleaning an ink jet imaging device, the ink jet imaging device including a main ink supply channel including an entrance side for supplying ink, a first ink channel including a first pressure chamber fluidly connected to a first nozzle; a first actuator associated with the first pressure chamber, the first ink channel being in fluid connection with the main ink supply channel and defining a first ink path from the entrance side of the main ink supply channel to the first nozzle and having a first length L1; a second ink channel including a second pressure chamber fluidly connected to a second nozzle; and a second actuator associated with the second pressure chamber, the second ink channel being in fluid connection with the main ink supply channel and defining a second ink path from the entrance side of the main ink supply channel to the second nozzle and having a second length L2, wherein L2>L1. The method includes purging ink through the first and the second nozzle by applying a pressure on the entrance side of the main ink supply channel; and simultaneously actuating the first ink channel by applying a first actuation pulse to the first actuator wherein the actuation pulse provides a pressure wave in the first ink channel that counteracts the local pressure in the first ink channel, such that the flow through the first ink channel is reduced during purging.
B41J 2/165 - Prévention du colmatage des ajutages, p. ex. nettoyage, obturation par un capuchon ou humidification des ajutages
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
75.
Sheet stacker comprising a sheet flipping device and a support device
During flipping sheets may fold upon themselves under the influence of gravity. To prevent a sheet stacker is provided with a support device for supporting an inner surface of the sheet during flipping, the support device comprising a plurality of flexible fingers elements of different length, each configured to support a different inner area of the sheet during its flipping motion.
B65H 29/40 - Éléments tournant autour d'un axe perpendiculaire au sens du déplacement des articles, p. ex. des croisillons formés par des éléments en S
B65H 31/26 - Dispositifs auxiliaires pour retenir les articles dans la pile
76.
Sheet stacker comprising a sheet flipping device and a holding device
During flipping sheets may fold upon themselves under the influence of gravity. To prevent a sheet stacker is provided with a holding device for releasably holding at least a portion of the sheet at least partially during the flipping of the sheet by a sheet flipping device, wherein the holding device is configured for movement of the held portion of the sheet in a first direction perpendicular to the flipping axis.
B65H 29/22 - Délivrance ou progression des articles à la sortie des machinesProgression des articles vers ou dans les piles par contact avec des éléments rotatifs à friction, p. ex. rouleaux, brosses ou cylindres et introduisant les articles dans une pile
B65H 29/40 - Éléments tournant autour d'un axe perpendiculaire au sens du déplacement des articles, p. ex. des croisillons formés par des éléments en S
B65H 29/24 - Délivrance ou progression des articles à la sortie des machinesProgression des articles vers ou dans les piles par appareil à jet d'air ou aspirant
77.
Method of controlling a digital printer with failure compensation
A digital printer and a method of controlling the digital printer having a print head with an array of printing elements and a failure detection system arranged to detect malfunctioning printing elements. When, during printing, a malfunctioning printing element is detected, a switch from the current print strategy to another print strategy is arranged during printing which leaves the number of passes per swatch constant, i.e. the print quality is not affected by the switch.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
78.
System and method for generating pre-fire pulses during a printing pause
A controller for a print head of an inkjet printing device is described that is configured to generate a virtual timing signal during a printing pause of the printing device, and to use the virtual timing signal for the generation of pre-ejection pulses in order to produce a reliable regeneration of the nozzles of the print head during the printing pause.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
79.
Arrangement for supplying ink to a print bar with small pressure fluctuations and with small gas fraction in the ink
An arrangement for supplying ink to a print bar with small pressure fluctuations may include an ink reservoir and a damping vessel. The print bar may include at least two print heads and is connected with the ink reservoir via a supply line. Each of the print heads is connected with the damping vessel via at least one damping line. The damping vessel is connected with a discharge line. The end of the damping line ends at a first height in the damping vessel. The end of the discharge line ends at a second height above the first height in the damping vessel. The arrangement may supply ink to the print bar with small gas fraction in the ink.
A method of handling a sheet defect error in a duplex print process, wherein media sheets are successively supplied along a feed path and are moved past a print engine where a first image is printed on a first side of each sheet in a first print pass, the sheets are then returned, via a duplex loop that contains a sheet flipping mechanism, to the feed path upstream of the print engine so that a second image can be printed on a second side of each sheet in a second print pass, the finished sheets being then discharged in a predetermined page sequence, and wherein, when a sheet defect is found a first print pass of a sheet, the defective sheet is diverted into an eject path downstream of the print engine, and a print pass for an immediate successor of the defective sheet is skipped. The subsequent semi-finished sheets are recirculated in the duplex loop while the supply of fresh sheets into the feed path is interrupted, and duplex printing is resumed during or after recirculating the subsequent semi-finished sheets.
B41J 13/00 - Dispositifs ou agencements spécialement adaptés pour supporter ou manipuler un matériau de copie en petites longueurs, p. ex. des feuilles
B41J 3/60 - Machines à écrire ou mécanismes d'impression ou de marquage sélectif caractérisés par le but dans lequel ils sont construits pour l'impression recto-verso du matériau d'impression
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
B41J 2/17 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par la manipulation de l'encre
B41J 29/393 - Dispositifs de commande ou d'analyse de l'ensemble de la machine
The present invention relates to a method of ink jet printing using an ink jet imaging device comprising a plurality of nozzles arranged for expelling droplets of an ink by actuation of an ink channel. The method comprises the steps of: a) providing a bit map of a spit pattern comprising an arrangement of refresh dots to be printed by each of the plurality of nozzles;d) printing the bitmap of the spit pattern;characterized in that the spit pattern comprises a plurality of clusters of refresh dots, each cluster comprising at least two sequential refresh dots expelled from a single nozzle. The present invention further relates to a spit pattern for use in such a method.
An aqueous ink composition includes a film-forming retardation additive, which enhances the pigment efficiency in the ink composition. A method for making such an ink and a method of printing with such an ink are also disclosed.
C09D 11/037 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant caractérisées par le pigment
B41M 5/00 - Procédés de reproduction ou méthodes de reproduction ou de marquageMatériaux en feuilles utilisés à cet effet
C09D 11/033 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant caractérisées par le solvant
C09D 11/106 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
B41J 2/21 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre pour l'impression à plusieurs couleurs
B41J 2/01 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre
83.
System and method for controlling a printing device
A printing device may include two printers for printing to the front side and the back side of a recording medium. The physical page length of at least one print image applied onto the front side of the recording medium is determined. The required page length of at least one print image to be applied onto the back side of the recording medium is adapted to the determined page length. At least one print line of the print image for the back side is printed repeatedly if the required page length for application of the rear print page onto the back side of the recording medium is smaller than the determined page length.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
B41J 3/60 - Machines à écrire ou mécanismes d'impression ou de marquage sélectif caractérisés par le but dans lequel ils sont construits pour l'impression recto-verso du matériau d'impression
84.
Method and printing device for influencing an optical property of a varnish layer to be applied onto a printed recording medium
In a method and a printing device for influencing an optical property of a varnish layer to be applied onto a printed recording medium, a coating substance is applied onto the recording medium by digital printing before the printing of at least one color separation of the print image on said recording medium. The quantity of the coating substance applied per area unit may be adjusted depending on the desired optical property of the varnish layer to be applied later.
B41J 2/21 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre pour l'impression à plusieurs couleurs
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
A fixation unit for use in a printing apparatus includes a substantially closed box for enclosing a heated space, the substantially closed box including an entry opening and an exit opening for enabling transport of a print substrate through the substantially closed box, a heating element arranged for heating the heated space enclosed by the substantially closed box, and a transport mechanism for engaging a sheet of the print substrate from the entry opening to the exit opening of the substantially closed box. The transport mechanism includes a nip of two belts that are pressed together and run concurrently and in the same direction, the belts being impermeable to any ink component. A printer includes such a fixation unit and a printing method uses such a fixation unit.
A sheet stacking apparatus includes a sheet alignment mechanism configured for aligning a sheet in a predetermined reference position; a gripper arrangement configured to grip the aligned sheet at at least two spaced-apart points of the sheet and to release the sheet on a stack; and a holder configured to hold the sheet in position on the stack while the gripper arrangement releases the sheet. The gripper arrangement is movable along a predetermined trajectory for moving the sheet from the reference position to a stacking position.
B65H 31/26 - Dispositifs auxiliaires pour retenir les articles dans la pile
B65H 29/10 - Délivrance ou progression des articles à la sortie des machinesProgression des articles vers ou dans les piles par pinces mécaniques en prise uniquement sur le bord d'attaque des articles les pinces étant animées d'un mouvement alternatif selon une course rectiligne
B65H 29/04 - Délivrance ou progression des articles à la sortie des machinesProgression des articles vers ou dans les piles par pinces mécaniques en prise uniquement sur le bord d'attaque des articles les pinces étant portées par des chaînes ou courroies sans fin
B65H 31/34 - Dispositifs pour aligner des articles empilés
87.
Method and device for ascertaining print data for an inkjet printing device
In a method and device for ascertaining print data for a print image to be printed, the print data is adapted and/or determined such that the time curve of the ink flow quantity, exhibits no quantity changes or flow rates due to which ink ejection errors might be produced, in particular nozzle failures. The device includes: a communication interface configured to receive the print data; and processing circuitry that ascertains, based on the print data, a time curve of an ink flow quantity of ink that, during the printing of the print image, flows in the print bar and/or is ejected from the one or more nozzles of the print bar; and determine, based on the time curve of the ink flow quantity, whether an ink ejection error will be produced.
B41J 29/393 - Dispositifs de commande ou d'analyse de l'ensemble de la machine
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
G06K 15/10 - Dispositions pour produire une présentation visuelle permanente des données de sortie utilisant des imprimantes par imprimantes en matrices de points
G06K 15/02 - Dispositions pour produire une présentation visuelle permanente des données de sortie utilisant des imprimantes
G06K 15/00 - Dispositions pour produire une présentation visuelle permanente des données de sortie
A device may be configured to check, via evaluation of resistance data of a cleaning sensor arranged on a print bar of an inkjet printing device, whether a cleaner for cleaning the one or more print heads of the print bar exhibits a negative effect. The state of a cleaner may be reliably and efficiently monitored via the installation of a cleaning sensor in a print bar.
A printer includes a print station; a media transport mechanism arranged for conveying print media on a transport path past the print station, the transport mechanism having a support surface for supporting the media; and a vacuum device arranged for attracting the media against the support surface on a section of the transport path downstream of the print station. The vacuum device is divided, in the direction along the transport path, into at least two segments in which the media are attractable with different non-zero suction pressures.
In a method and system for increasing print quality, activation pulses are activated with which a nozzle of an inkjet printing device to print dots on a recording medium. The activation pulses may be adapted based on sensor data with respect to already printed dots. The method and system can further include an automatic adaptation of the activation pulses to increase print quality even given the presence of soiling at the nozzle.
B41J 2/21 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre pour l'impression à plusieurs couleurs
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
A liquid jetting device is arranged to eject a droplet of a liquid. The device includes a nozzle, a liquid duct connected to the nozzle, an electro-mechanical transducer arranged to create an acoustic pressure wave in the liquid in the duct, and an electronic control system arranged to apply to the transducer a voltage signal having a waveform configured for ejecting a droplet from the nozzle. The waveform is further configured to quench a residual acoustic pressure wave in the liquid duct and includes a jet pulse, a subsequent first quench pulse having a polarity opposite to that of the jet pulse, and a subsequent second quench pulse having the same polarity as the jet pulse.
B41J 29/38 - Entraînements, moteurs commandes ou dispositifs d'arrêt automatiques pour le mécanisme d'impression tout entier
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
A paper input module for use in a printing apparatus includes a substantially closed box for holding a stack of sheets of a print substrate; a duct in fluid connection with the closed box and arranged for transporting a sheet of the print substrate out of the paper input module; and a transport mechanism for engaging a sheet of the print substrate to exit the paper input module via the duct. A method for conditioning a stack of print substrates in such a paper input module is also disclosed.
An air knife assembly is provided to jet an air current to control the landing of sheet of print media during transfer between two adjacent conveyors in a printer. The air knife forming unit is configured for jetting an air curtain formed such that said air curtain and air currents resulting from it flow substantially perpendicular to a transport direction of the conveyors. Thereby, lifting and consequently wrinkling of the leading edge during transfer and landing may be avoided.
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
B41J 13/00 - Dispositifs ou agencements spécialement adaptés pour supporter ou manipuler un matériau de copie en petites longueurs, p. ex. des feuilles
B41J 2/01 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre
The present invention relates to an aqueous reaction liquid composition including an anti-deforming agent. selected from the group consisting of a choline salt (formate, acetate, chloride), a guanidine salt (formate, acetate, chloride), trimethylglycine (betaine), potassium formate and ammonium nitrate. The present invention also relates to an aqueous reaction liquid composition including a Deep Eutectic Solvent (DES) having urea in combination with an anti-deforming agent as disclosed above. In another aspect the invention relates to an ink set including such aqueous reaction liquid composition and an ink composition, preferably a pigmented ink composition. In another aspect the present invention relates to a printing method including application of an aqueous reaction liquid composition according to the present invention and application of an ink composition.
C09D 11/54 - Encres à base de deux liquides, l’un des liquides étant l’encre, l’autre liquide étant une solution de réaction, un fixateur ou une solution de traitement pour l’encre
B41J 2/21 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre pour l'impression à plusieurs couleurs
B41M 5/00 - Procédés de reproduction ou méthodes de reproduction ou de marquageMatériaux en feuilles utilisés à cet effet
C09D 11/037 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant caractérisées par le pigment
C09D 11/106 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
95.
Ink printing device and method for monitoring a chamber for airtightness
An ink printing device has a dryer chamber that is connected via two openings with the internal space of the printer. To detect whether operational exhaust air flows, as leakage air, from the drying chamber into the internal space, the temperature in the opening region may be measured and compared with a reference value. Given a temperature difference above a threshold value, an error signal is generated and/or corresponding countermeasures are taken in order to reduce the leakage.
B41J 29/393 - Dispositifs de commande ou d'analyse de l'ensemble de la machine
B41J 11/00 - Dispositifs ou agencements pour supporter ou manipuler un matériau de copie en feuilles ou en bandes
G01K 3/14 - Thermomètres donnant une indication autre que la valeur instantanée de la température fournissant des différences de valeursThermomètres donnant une indication autre que la valeur instantanée de la température fournissant des valeurs différenciées par rapport à l'espace
A dryer system is described that is configured to purify, by means of a wet scrubber, the exhaust gases created in the drying of a recording medium that has been printed to. Moreover, thermal energy may be extracted from the exhaust gases in the wet scrubber, which thermal energy is used in turn to dry the recording medium. An environmentally safe and energy-efficient drying may thus be enabled.
The present invention relates to a method for printing on an adhesive medium. The present invention further relates to a printed product. In addition, the present invention relates to a method for applying an image onto an object. The present invention also relates to a radiation-curable ink composition.
C09D 11/101 - Encres spécialement adaptées aux procédés d’imprimerie mettant en œuvre la réticulation par énergie ondulatoire ou par radiation de particules, p. ex. réticulation par UV qui suit l’impression
B41M 7/00 - Traitement ultérieur des travaux imprimés, p. ex. chauffage, irradiation
B41M 5/00 - Procédés de reproduction ou méthodes de reproduction ou de marquageMatériaux en feuilles utilisés à cet effet
C09D 11/38 - Encres pour l'impression à jet d'encre caractérisées par des additifs non macromoléculaires autres que les solvants, les pigments ou les colorants
C09D 11/107 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone à partir d'acides non saturés ou de leurs dérivés
98.
Printing device and method for determining print speed-dependent print data for the operation of a nozzle
In the print data for a nozzle of a printer, white dots are replaced by pre-ejection pulses. One or more repetitions of the pre-ejection pulses may be inserted into the print data, depending on the actual print speed of the printer, to determine print speed-dependent print data with which the nozzle is activated to print a print image with high print quality.
B41J 2/045 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre caractérisés par le procédé de formation du jet en produisant à la demande des gouttelettes ou des particules séparées les unes des autres par pression, p. ex. à l'aide de transducteurs électromécaniques
G06K 15/10 - Dispositions pour produire une présentation visuelle permanente des données de sortie utilisant des imprimantes par imprimantes en matrices de points
G06K 15/02 - Dispositions pour produire une présentation visuelle permanente des données de sortie utilisant des imprimantes
99.
Method for profiling a print medium for use in a printing system
The invention relates to a method for profiling a print medium for use in a printing system. The print medium is received in an input holder and a plurality of test jobs is received in a test job receiver. For each test job a uniquely determined combination of at least a first printing system parameter of print speed of the printing system and a second printing system parameter of coverage of the marking material is intended to be prepared by a print controller. The printing system registers a test result of each test job. The print controller creates a two-dimensional media print mode table of media print modes for the print medium to be profiled based on the test results of the test jobs for the print medium. When a print job arrives intended to be printed on the profiled medium, a media print mode is selected from the two-dimensional media print mode table.
A sheet transport system for moving a sheet in a transport direction while adjusting a position of the sheet in a lateral direction normal to the transport direction to a target position, includes first and second pinch roller sets spaced apart from one another in the transport direction, each pinch roller set including two pairs of pinch rollers spaced apart from one another in the lateral direction, each pair forming a nip for pinching and driving the sheet with an individually controllable speed; a detection system for detecting a position of the sheet in the lateral direction while the sheet is pinched by the first pinch roller set; and a control system configured for carrying out the following actions: by controlling the speeds of the pinch rollers of the first pinch roller set before the sheet has reached the second pinch roller set, rotating the sheet by a first rotation angle for adjusting a given reference point on a leading part of the sheet to its target position; and when the sheet has left the first pinch roller set and while the reference point travels along a path segment that is symmetric with respect to the second pinch roller set, rotating, by controlling the speeds of the pinch rollers of the second pinch roller set, the sheet by a second rotation angle for aligning a leading edge of the sheet in the lateral direction.
B65H 9/00 - Positionnement des articles, p. ex. orientementDispositifs à cet effet
B65H 9/20 - Assistance par indicateurs photo-électriques, sonores ou pneumatiques
B65H 7/10 - Commande de l'alimentation en articles, de l'enlèvement des articles, de l'avance des piles ou d'appareils associés permettant de tenir compte d'une alimentation incorrecte, de la non présence d'articles ou de la présence d'articles défectueux par palpeurs ou détecteurs sensibles à la présence d'articles défectueux ou à l'enlèvement ou à une alimentation incorrecte comportant des détecteurs sensibles à un mauvais repérage latéral
B65H 7/06 - Commande de l'alimentation en articles, de l'enlèvement des articles, de l'avance des piles ou d'appareils associés permettant de tenir compte d'une alimentation incorrecte, de la non présence d'articles ou de la présence d'articles défectueux par palpeurs ou détecteurs sensibles à la présence d'articles défectueux ou à l'enlèvement ou à une alimentation incorrecte
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