EP3490803A1 - Procédé d'impression de contenants - Google Patents

Procédé d'impression de contenants

Info

Publication number
EP3490803A1
EP3490803A1 EP17725566.8A EP17725566A EP3490803A1 EP 3490803 A1 EP3490803 A1 EP 3490803A1 EP 17725566 A EP17725566 A EP 17725566A EP 3490803 A1 EP3490803 A1 EP 3490803A1
Authority
EP
European Patent Office
Prior art keywords
printing
printhead
image data
data
ink
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17725566.8A
Other languages
German (de)
English (en)
Inventor
Sascha Koers
Katrin Preckel
Markus Reiniger
Werner Van De Wynckel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KHS GmbH
Original Assignee
KHS GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KHS GmbH filed Critical KHS GmbH
Publication of EP3490803A1 publication Critical patent/EP3490803A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/21—Ink jet for multi-colour printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/40—Printing on bodies of particular shapes, e.g. golf balls, candles, wine corks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/603—Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer
    • H04N1/6052—Matching two or more picture signal generators or two or more picture reproducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/603—Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer
    • H04N1/6052—Matching two or more picture signal generators or two or more picture reproducers
    • H04N1/6055—Matching two or more picture signal generators or two or more picture reproducers using test pattern analysis

Definitions

  • printing systems are known for printing on containers using digital, on the inkjet or ink-jet principle working electric printheads.
  • printing systems or printing machines for example DE10 2007 050 490 A1 are also known, in which they revolve around at least one vertical axis
  • Treatment units act.
  • several printheads which apply partial images with the same printing ink, are operated in parallel in the known device. Since each container for printing with a multi-color print image of a printing station of a transport element to a
  • Print station of a subsequent transport element is forwarded and is provided at the respective printing stations each with a partial print image
  • the printheads can be divided into groups of printheads, each printhead group each containing a printhead for an ink.
  • Each printhead group causes the printing of a particular container.
  • successively printed containers are printed by different printhead groups, which generally comprise identical printheads, but in practice have different performance data. This can cause the print images of Containers that have been printed by different printhead groups with the same printed image, a noticeable difference from the human eye, in particular color differences. Based on this, it is an object of the invention to provide a method for
  • a device for printing on containers is the subject of the independent claim 15.
  • the invention relates to a method for printing on containers by means of a printing device.
  • the printing device has one or more peripherally drivable around a vertical machine axis
  • Transport elements wherein on the at least one transport element a plurality of each at least one print head having printing stations are provided and the printing stations of a transport element are each formed for applying a printed image with at least one ink, in particular a partial image.
  • the printing device has a plurality of transport elements and at the respective transport elements is a container printing with a partial printing image, which is formed from exactly one printing ink. In other words, exactly one printing ink of a multicolored printed image is thus applied to each transport element.
  • the method comprises the following steps:
  • Calibration records include, with the individual
  • Calibration records each to an optical measurement, which is derived in particular from a print image generated by the print head, and / or relates to a used in the control of the print head control variable.
  • Printhead image data Deviations in the performance data of the printheads are taken into account and, if necessary, compensated so that the print images of
  • Containers that have been printed by different printhead groups to give the human eye an optically identical or substantially visually identical impression are Containers that have been printed by different printhead groups to give the human eye an optically identical or substantially visually identical impression.
  • color deviations or color registration deviations between can be achieved by the method according to the invention
  • Containers printed by different printhead groups should be avoided.
  • the printhead-specific calibration data is determined in one or more printing and measuring steps performed with the respective printhead and stored in the respective printhead having that printhead.
  • the printing steps leading to the printhead-specific calibration data are performed under conditions that correspond to the conditions prevailing in the container printing, for example, in an orientation of the printhead that corresponds to the orientation in the printing process Tank printing is equivalent (preferably vertical orientation so that the ink drops are dispensed in a horizontal direction).
  • a test substrate can be printed with a material that corresponds to the container material to be printed.
  • the same printing ink can be used as will later be used in the container printing. This can be tuned to the prevailing at the container printing pressure situation
  • the print head used voltage, the frequency used in the control of the printhead, etc. From the dependencies of the data of the optical
  • printhead-specific calibration data are determined.
  • the printhead-specific calibration data provides a relationship between one for driving the printhead
  • control variable used size (control variable) and a measure that of the
  • Printhead generated print image is derived at.
  • the subpicture data is transferred to the printing station, e.g. by means of a mesh data network and there by a pressure station own
  • Processor converted into printhead image data, considering printhead-specific calibration data.
  • this conversion may also be performed in a computing unit hierarchically located between the central computer and the printing station and calculating the printhead image data for a plurality of printing stations of a transporting element based on the respective printhead-specific calibration data.
  • the subpicture data may have a significantly greater number of quantization levels than the printhead image data.
  • information about the number of drops to be applied to a pixel is calculated.
  • the printhead image data indicates which one
  • Ink volume is applied to a pixel. This allows the
  • Color coverage can be varied at the respective pixel.
  • quantization errors resulting from the gray value reduction are calculated in the calculation of the printhead image data
  • the print heads provided on a transport element and which supply a specific ink are adjusted to a uniform ink coverage value in an equilibration step.
  • all printheads of a transport element providing a particular ink are set to the lowest ink coverage value, one of which is the one
  • Ink-dispensing printhead this transport element is provided.
  • the equilibration of the printheads is oriented towards the least performing print head in terms of ink coverage.
  • the remaining printheads are limited with their maximum color coverage value such that all
  • Print heads of a transport element can reach the same maximum ink coverage value.
  • the overall image data is provided on a central computer unit provided for all transport elements.
  • This central processing unit is via a machine data network with the individual
  • extracting the subpicture data is done from the
  • the printhead image data becomes the
  • Error diffusion within the meaning of the invention is a halftoning method
  • the color coverage value of an ink droplet is selected as a function of the color registration values of the adjacent dots in order to compensate for quantization errors in the case of coarse quantization of the color registration values.
  • Gram value in the sense of the invention is understood as meaning a brightness value of a pixel. In other words, the “gray value” indicates how light or dark the pixel appears to the human eye.
  • ink coverage refers to the volume of ink that is applied to a surface, for example, the optical density resulting from the applied ink quantity / volume is used as the measured variable.
  • FIG. 1 shows an example of a printing device in a perspective view
  • FIG. 2a by way of example a printing device in a schematic plan view
  • FIG. 2b shows by way of example and schematically the transport path through a printing device in a schematic plan view
  • Fig. 3 by way of example several arranged on a transport element
  • FIG. 4 shows by way of example a treatment segment with a holding and centering device arranged thereon in a perspective view;
  • FIG. 5 shows a printing device according to FIG.
  • the device generally designated by the reference numeral 1 in Figure 1 is used for applying equipment, for example in the form of a print or multiple printing on container 2, for example in the form of bottles, either directly on the outer or outer surface of the wall of the container 2 or on there already applied, eg provided with a partial equipment labels.
  • the transport path of the packaging means 2 during feeding, when moving through the device 1 and when removing it from the device 1 is indicated schematically in FIGS. 2a and 2b by TW.
  • the device 1 consists of several in the transport direction A directly adjoining machine modules 3.1 - 3.n, and indeed in the illustrated embodiment of a total of eight machine modules 3.1 - 3.8, all machine modules 3.1 - 3.8 are each formed by an identical basic unit 4, which is equipped with the functional elements necessary for the specific task of the respective machine module 3.1 - 3.8.
  • Each basic unit 4 includes i.a. For example, a housed in a module housing 5 drive and control unit and a at the top of the
  • Module housing 5 arranged and by the drive and control unit u.a. around a vertical machine axis MA of the respective machine module 3.1 - 3.8 circumferentially drivable transport element 6.
  • the transport element 6 is
  • treatment segments or treatment modules are attachable to the respective
  • Machine module 3.1 - 3.8 for a specific functionality.
  • pretreatment units designed to sterilize the containers, etc.
  • pressure units eg, for the treatment units
  • Post-treatment units e.g., curing units for drying the printed image, inspection units, etc.
  • Each treatment unit has either one of the respective treatment unit associated holding and centering unit 10, which is designed for holding and centering of the pass through the printing device 1 to be printed container 2 or the treatment unit has means for holding and re-enabling such a holding and centering unit 10 on, ie at the
  • Treatment unit is a receptacle on which a holding and
  • Centering unit 10 is detachably fastened.
  • the container 2 to be treated is held during the rotation of the respective transport element 6 by the holding and centering unit 10 with respect to the respective treatment unit and transported simultaneously with the treatment in the transport direction A.
  • the transport elements 6 of the individual machine modules 3.1 - 3.8 are
  • Transport elements 6 in their entirety form a transport device with which the container 2 within the printing device 1 on the in the figure 2b
  • Container inlet 1 .1 and the container outlet 1 .2 are moved.
  • the individual containers 2 are each directly from the transport element 6 of a
  • the machine module 3.1 forms inter alia the inlet module of the printing device 1.
  • a pretreatment of the container 2 takes place at least on the packaging area to be printed,
  • a plasma or corona treatment which is particularly useful when the application of multiple printing in subsequent modules using printheads that operate on the inkjet principle (inkjet) or the so-called Tonjet principle.
  • arranged printing stations formed by the units formed as printing units, where the multiple printing is carried out, preferably as a color print in the form that at each
  • a color set of the color print is printed in each case, for example in white, yellow, magenta, cyan and black.
  • the imprint is preferably carried out with the help of after
  • the machine module 3.7 is e.g. formed as a drying module in which the respective previously generated multiple pressure in a suitable manner, for example by energy input, e.g. is finally dried or cured by heat and / or by UV radiation (Curing).
  • the last machine module 3.8 forms the outlet module or the container outlet 1 .2 of the device 1, at which the finished printed containers 2 leave the device 1.
  • the machine module 3.8 may preferably also be designed as a drying module.
  • Machine modules can be provided (for example, an inspection module) or certain machine modules can be omitted in order to adjust the printing device 1 as needed can.
  • the invention is also applicable to printing devices in which a plurality of printing stations are provided on a single rotatably driven transport element, on each of which a plurality of print heads are provided one above the other or side by side for applying different printing inks, i. of the
  • Multicolour printing is not distributed over several transport elements away but by one or more transport elements, at the Print stations multiple printheads are provided for applying different inks.
  • the packaging means 2 with the respective transport elements 6 each have an angular range of 180 ° about the vertical machine axis MA of
  • the machine modules 3.1 - 3.n as shown in Figures 3 and 4, have several trained as treatment segments 7 treatment units, each as a complete functional units or modules on one of the respective vertical machine axis MA circumferentially driven rotor of the respective Machine module 3.1 - 3.n are mounted interchangeably.
  • the rotor can in this case in particular be continuously circulating or intermittently driven.
  • the treatment segments 7 are provided on the periphery of the rotor, preferably in such a way that the treatment segments 7 are cake-like in plan view and adjoin one another in the circumferential direction of the rotor such that the treatment segments 7 of a machine module 3.1 - 3.n form a circular ring (see Fig. 3).
  • the treatment segments 7 form on their relative to the machine axis MA radially outer side each have a recess 7.1, in which the container 2 are at least partially received during treatment, preferably in the region of its container top or container mouth hanging and centering units 10 hanging held, ie oriented with its container vertical axis in the vertical direction and parallel to the machine axis MA.
  • the holding and Zentnerikien 10 are in turn each held on a support 1 1, which is fixed in the associated lateral grooves 12.
  • the carrier 1 1 can be moved or moved in the manner of a slide in the grooves 12, for example driven by suitable drive means, in order to ensure adaptation to different container formats.
  • the holding and centering units 10 are preferably used for holding and centering a container 2 and also for the controlled turning or pivoting thereof.
  • the holding and centering units 10 are preferably used for holding and centering a container 2 and also for the controlled turning or pivoting thereof.
  • the second container following the first container is in turn printed across the machine modules 3.2 - 3.6 across a second print head group which also contains one print head for applying a multicolor print image for each print color, although the print heads of the first and second print head groups are identical with regard to their printing parameters may be subject to deviations.
  • a plurality of color printers operating in parallel are formed by the machine modules 3.2 - 3.6 formed as printing modules.
  • Multiple printheads may have different performance despite the same design and possibly the same production batch.
  • two identical print heads can differ with respect to the dispensed drop size or the dispensed drop speed or the maximum achievable ink coverage.
  • the printing apparatus 1 has a central computer unit ZR, from which the image data necessary for the printing are provided. More in detail, as shown in Fig. 6, first overall image data for
  • Colors include (S100). This can be realized, for example, in the form of several color channels contained in the overall image data.
  • the central computer unit ZR can be designed to divide the overall image data into partial image data (S1 10).
  • these partial image data may each contain a color channel or the image part information relating to an ink (eg yellow, magenta, cyan, white, black).
  • a plurality of different partial image data are extracted from the overall image data, wherein the individual partial image data each contain information about an ink.
  • each printhead dispenses a specific ink and therefore the respective printhead is only to be driven based on the subpicture data of that specific ink.
  • the decomposition of the overall image data into partial image data takes place in a computer unit assigned to the transport element, in particular on or in the transport element, or in a computer unit assigned to or provided in the respective printing station.
  • the extracted image data e.g yellow, magenta, cyan, white, black
  • Partial image data are compressed, so that the transmission is accelerated and the memory requirements for the storage of the partial image data is reduced.
  • printhead-specific calibration data is provided (S120).
  • This printhead-specific calibration data may, for example, be stored in a storage unit provided in the printing station or in a storage unit of the printhead.
  • the printhead-specific calibration data can be obtained, in particular, by applying ink applications to a substrate with a defined control of the printhead and then subjecting these color jobs to an optical analysis.
  • color jobs with a different number of drops of ink per pixel drops per dot, dpd
  • dpd drops per dot
  • the printhead-specific calibration data are thereby operated in particular at predetermined target operating parameters in order to be able to ensure comparability of the calibration data of different printheads.
  • the printhead-specific calibration data can be obtained, in particular, by printing a test substrate which corresponds to the material to be printed during container printing, and then analyzing it.
  • Test substrates of the Druckkopforient ist correspond, which occupies the print head in the container printing, namely an orientation of the print head such that the ink droplets are ejected in a horizontal or substantially horizontal direction through the printing nozzles.
  • the printhead-specific calibration data can in particular be a
  • the printhead-specific calibration data may be linearization data indicating color registration values over a printhead drive quantity (e.g., voltage, drops per dot, etc.) that varies in a particular range.
  • a printhead drive quantity e.g., voltage, drops per dot, etc.
  • printhead-specific calibration data are obtained, wherein the printhead control data used for the later control of the printheads are calculated based on a plurality of sets of printhead-specific calibration data.
  • printhead image data is then calculated from the field data (S130). This calculation is preferably carried out in a processor of the printing station or a computer unit located there.
  • the partial image data corresponding to the ink applied by the respective print head are preferably loaded into the printing station, possibly unpacked there (in the event that they are present in compressed form) and with the aid of the print head-specific
  • the partial image data can have a higher number of quantization levels (eg 256), also called gray values, than can be used in the control of the print heads.
  • quantization levels eg 256
  • printheads can image different gray levels by choosing drop drops per dot (dpd).
  • dpd drop drops per dot
  • dpd drop drops per dot
  • the printhead image data is converted to printhead control data (S140).
  • the printhead control data may be control data that may be used to drive the individual nozzles of the printhead. With this printhead control data, the printhead can go directly to
  • the quantization error that results from converting the higher number of quantization levels in the subpicture data (e.g., 256) to a reduced number of quantization levels (e.g., 8)
  • an error diffusion method can be used.
  • a quantization error is compensated for by the fact that pixels which are to have a brightness value (for example 3.5) which can not be imaged in the reduced number of quantization stages, are made up of pixels
  • successive pixels of different quantization levels are perceived by the human eye as an intermediate value between these quantization levels.
  • a brightness value of 3.5 can be imaged by successive pixels with brightness levels 3 and 4.
  • Partial print images are generated. In particular, it is possible that despite
  • the printed images obtained differ from each other, especially in terms of color coverage.
  • the print heads emitting the same ink can be calibrated relative to each other.
  • the printhead specific calibration data can be used.
  • calibration data can be used for the calibration, which indicate information regarding the maximum achievable ink coverage of the respective print head.
  • a tuning or calibration of the print heads used on a transport element, which are used to deliver the same printing ink can then take place.
  • the maximum achievable ink coverage values from the printheads may be compared and the printheads matched to each other so that each printhead applies a print image having a maximum ink coverage value that can be achieved by the printhead having the lowest maximum ink coverage value.
  • the printheads, with which higher ink coverage values are achievable are so throttled in dispensing ink that they only achieve a color coverage value that is the maximum possible
  • Color coverage value of the lowest performing printhead (in terms of color coverage value).
  • the calibration of the print heads to a uniform color coverage value for example, by a suitable choice of the electrical control variables (voltage, frequency, etc.) of the respective printhead or by taking into account the existing deviations in the

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Ink Jet (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

L'invention concerne un procédé d'impression de contenants (2) au moyen d'un dispositif d'impression (1) comprenant un ou plusieurs éléments de transport (6) pouvant être entraînés en rotation autour d'un axe vertical de machine (MA). Plusieurs stations d'impression (7) comprenant chacune au moins une tête d'impression sont situées sur chaque élément de transport (6) et les stations d'impression (7) d'un élément de transport (6) sont conçues chacune pour appliquer une image imprimée présentant au moins une encre d'impression, en particulier une partie d'image imprimée. Le procédé comprend les étapes suivantes : − la fourniture de données d'image entière, qui contiennent des informations d'image concernant plusieurs encres d'impression différentes ; − l'extraction de données de parties d'image à partir des données d'image entière, les données de partie d'image concernant chacune une encre d'impression appliquée par les stations d'impression (7) d'un élément de transport (6) ; − la fourniture de données d'étalonnage spécifiques à la tête d'impression à la station d'impression (7) ; − le calcul de données d'image de tête d'impression à partir des données de partie d'image associées à la station d'impression (7) respective sur la base des données d'étalonnage spécifiques à la tête d'impression ; − l'impression du contenant (2) à la station d'impression (7) respective sur la base des données d'image de tête d'impression.
EP17725566.8A 2016-07-29 2017-05-19 Procédé d'impression de contenants Withdrawn EP3490803A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016114123.2A DE102016114123A1 (de) 2016-07-29 2016-07-29 Verfahren zur Bedruckung von Behältern
PCT/EP2017/062100 WO2018019442A1 (fr) 2016-07-29 2017-05-19 Procédé d'impression de contenants

Publications (1)

Publication Number Publication Date
EP3490803A1 true EP3490803A1 (fr) 2019-06-05

Family

ID=58772553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17725566.8A Withdrawn EP3490803A1 (fr) 2016-07-29 2017-05-19 Procédé d'impression de contenants

Country Status (5)

Country Link
US (1) US10611174B2 (fr)
EP (1) EP3490803A1 (fr)
JP (1) JP2019523186A (fr)
DE (1) DE102016114123A1 (fr)
WO (1) WO2018019442A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117399808B (zh) * 2023-12-15 2024-03-01 上海宇田机电设备有限公司 无标签打标设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8120812B2 (en) 2003-08-14 2012-02-21 Xerox Corporation System and method for obtaining color consistency for a color print job across multiple output devices
JP5013712B2 (ja) * 2005-12-28 2012-08-29 キヤノン株式会社 インクジェット記録装置およびインクジェット記録方法
DE102007036752A1 (de) * 2007-08-03 2009-02-05 Khs Ag Vorrichtung zum Bedrucken von Behältern
DE102007050490A1 (de) 2007-10-19 2009-04-23 Khs Ag Vorrichtung und Verfahren zum Bedrucken von Behältern
JP5541652B2 (ja) * 2009-03-31 2014-07-09 キヤノン株式会社 記録装置及び記録方法
JP5539120B2 (ja) * 2010-08-31 2014-07-02 キヤノン株式会社 インクジェット記録装置およびインクジェット記録方法
JP5436389B2 (ja) * 2010-10-05 2014-03-05 キヤノン株式会社 画像処理装置および画像処理方法
JP5780735B2 (ja) * 2010-10-05 2015-09-16 キヤノン株式会社 画像処理装置および画像処理方法
DE102011112106B3 (de) 2011-09-02 2013-02-21 Khs Gmbh Vorrichtung zum Bedrucken von Packmitteln sowie Drucksegment zur Verwendung bei einer solchen Vorrichtung
EP2580061B1 (fr) * 2011-09-02 2019-09-04 KHS GmbH Dispositif de traitement d'emballages et unité de retenue et de centrage pour emballages
DE102012005046A1 (de) 2012-03-15 2013-09-19 Till Gmbh Verfahren zum Feststellen von Fehlern in der Ausrichtung von Druckbildern und zur Durchführung des Verfahrens eingerichtete Druckstation
DE102014116201A1 (de) * 2014-11-06 2016-05-12 Krones Ag Vorrichtung und Verfahren zur Kontrolle von Direktdruckmaschinen
DE102015100536A1 (de) * 2015-01-15 2016-07-21 Océ Printing Systems GmbH & Co. KG Alterungsanpassung von Druckköpfen

Also Published As

Publication number Publication date
US10611174B2 (en) 2020-04-07
JP2019523186A (ja) 2019-08-22
US20190232682A1 (en) 2019-08-01
WO2018019442A1 (fr) 2018-02-01
DE102016114123A1 (de) 2018-02-01

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