EP2508347A1 - Procédé et dispositif d'impression d'au moins une matière à imprimer - Google Patents

Procédé et dispositif d'impression d'au moins une matière à imprimer Download PDF

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Publication number
EP2508347A1
EP2508347A1 EP12158200A EP12158200A EP2508347A1 EP 2508347 A1 EP2508347 A1 EP 2508347A1 EP 12158200 A EP12158200 A EP 12158200A EP 12158200 A EP12158200 A EP 12158200A EP 2508347 A1 EP2508347 A1 EP 2508347A1
Authority
EP
European Patent Office
Prior art keywords
printing
print
printed
detected
print run
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Withdrawn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
EP12158200A
Other languages
German (de)
English (en)
Inventor
Stefan Holzer
Armin Gerland
Peter Geiger
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.)
Thieme GmbH and Co KG
Original Assignee
Thieme GmbH and Co KG
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 Thieme GmbH and Co KG filed Critical Thieme GmbH and Co KG
Publication of EP2508347A1 publication Critical patent/EP2508347A1/fr
Withdrawn legal-status Critical Current

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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
    • B41J3/28—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/008—Controlling printhead for accurately positioning print image on printing material, e.g. with the intention to control the width of margins
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end

Definitions

  • the invention relates to a method for printing at least one printed material on a print run, in particular a printing table, by means of a digital printing unit.
  • the invention also relates to a device for printing at least one printing material with a printing table for placing the printing material and a digital printing unit for generating a printed image on the printing material and a control unit for driving the digital printing unit.
  • a printing material to be printed for example, a sheet of paper, placed on the printing table and fixed with stops on the printing table in a designated position.
  • a negative pressure to the surface of the printing table in order to then fix the printing material immovably on the printing table during the printing process.
  • the orientation of the printed material is done manually or by machine.
  • the print material is for example brought to so-called landing pins, which are raised at this time and on which the printed material strikes mechanically. Then, a vacuum is applied to the printing table surface and the printing material thereby held in position on the landing pins.
  • the manual or mechanical alignment of the printed material is time-consuming and has positional errors of the printed image on the printed matter result if the alignment is not sufficiently accurate.
  • a method for printing at least one printed material on a print run, in particular a printing table, provided by means of a digital printing unit wherein the feeding of the printing material to the print run, detecting a position of the print material on the print run and aligning one of the digital Printing unit generated printed image in response to the detected position of the printing material is provided.
  • the invention it is possible to hang the printed matter disorderly. If the printing material is not exactly at the predefined position on the print run, this is harmless in the inventive method, since first a position of the print material is detected on the print run and then aligned the printed image generated by the digital printing unit to the detected position of the print material becomes. In this way, the fit between the print image and printing material is always ensured. In addition to a shortening of the laying time of the printed materials, since no exact alignment is required, sources of error can be eliminated. Optionally, even constructive positioning aids, such as landing pins, can be saved. As a print run, for example, a printing table or a conveyor belt can be used.
  • printing tables can be designed to be movable, so that printed materials are placed in a first position of the printing table and the printing table is then moved to a second position under the printing unit. A position of the printed matter is then detected during a movement of the printing table by means of a camera or a scanner.
  • the invention can also be used in stationary digital printing units in which the printing table is moved during printing relative to the printing unit or the printing units.
  • positions for the printing material or for a plurality of printing materials are no longer rigidly set on the printing table, whereby a flexibility of the method based on Media sizes, print media sizes and print media forms is increased. This allows the product range to be expanded while maximizing productivity.
  • the printed matter need not be aligned or only very roughly on the print run.
  • the fit of printed image and printing material by means of a detection of position, shape, size and / or position of the printed materials, for example by image processing, a transfer of the detected information to a control unit for the printing unit and a pressure with the printing unit on the printed matter according to the detected Position of the printed material.
  • the optical detection of the position of the at least one printed material is provided on the print run.
  • optical detection is readily possible for example by means of a camera and suitable image processing.
  • optical sensors can also be provided in the surface of the print run, which detect the presence of a printed matter.
  • the detection of a format of the at least one printed material is provided.
  • detecting a format of the printing material can be checked, for example, whether a print image to be generated is suitable for the printing material. For example, it is also possible to select and execute one of several pending print jobs depending on the detected format of the print material. In this way, the format of the printed matter on the print run can be detected by means of software and these print materials can then be assigned to pending print jobs until the pending print jobs are completed. It is also possible that the from digital print engine generated print image is scaled depending on the detected format of the printed matter.
  • the detection of a format, at least one side length, a shape, a position of the center and / or an alignment of the printing material on the printing table is provided.
  • printed materials can be printed with any shape with an exact fit, such as polygonal shapes or freeforms such as Christmas tree shapes or furniture parts.
  • the activation of devices for generating a negative pressure on the surface of the print run in dependence on the detected position and / or the detected format of the printed matter is provided.
  • the projection of markings onto the print run is provided at least during the feeding of the at least one print material.
  • a device for printing at least one printed material with a print run in particular a printing table, for placing the printing material and a digital printing unit for generating a printed image on the printing material and a control unit for driving the digital printing unit, in the at least one detecting means is provided for detecting a position of the printing material on the print run and wherein the control unit has means for aligning the print image generated by the printing unit in dependence on the detected position of the printed matter.
  • At least one camera is provided for detecting a position of the printed matter on the print run.
  • the presentation of the Fig. 1 schematically shows a plan view of a printing table 10, on which a plurality of printing materials 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 and 22 are placed with different formats.
  • the printed matter 11 to 22 are placed disorderly and their respective side edges are not aligned parallel to each other.
  • this would lead to a faulty fit between the respective printed images and the printing materials 11 to 22, that is, that the printed image is not positioned at the respective intended position on the printing materials 11 to 22.
  • an in Fig. 1 only schematically illustrated camera 24 is provided, with which the positions of the printed matter 11 to 22 are detected on the printing table 10.
  • the respective outlines of the printed matter 11 to 22 are detected by means of the camera 24 and after processing the detected optical signals with an image processing software in a control unit located in Fig. 2 shown image of the printing table 10 before.
  • the control unit are now the respective side lengths of the printed materials 11 to 22, their format, for example DINA4 or DINA5 and the position of the respective center of the printed materials 11 to 22 and an orientation of the respective printed materials 11 to 22 according to an angle between the respective side edges of the printed matter 11 to 22 and the side edges of the printing table 10 known.
  • the position of the respective printing materials 11 to 22 relative to the printing table 10 is known to align a print image 11 to 22 to be generated on the printed image depending on the detected position and to ensure a fit between printed image and printing material can.
  • this position of the printed matter 11 to 22 is detected relative to the printing table 10 for example, based on the respective vertices of the printed materials 11 to 22, based on the side lengths and the position of the centers of the printed matter 11 to 22 or the like, however, is not crucial.
  • Fig. 3 shows the printed matter 11 to 22 on the printing table 10 with the printed images generated thereon.
  • the printed images generated in each case were aligned with the detected position of the printed matter 11 to 22, so that now all printed images were printed with the intended fit and exactly the same aligned to the respective printing material 11 to 22.
  • the presentation of the Fig. 4 schematically shows a device 30 according to the invention for printing on printed materials.
  • the device 30 has the printing table 10 and a printing unit 32, which has a print head 34 which can be moved on a rail 36 across the printing table 10.
  • the rail 36 can in turn be moved along two rails 38 arranged parallel to one another along the printing table in order to be able to print substantially the entire surface of the printing table 10 with the printing head 34.
  • the printhead 34 and in Fig. 4 Not shown means for moving the print head 34 along the rail 36 and for moving the rail 36 along the rails 38 are controlled by a central control unit 40 of the device 30.
  • the printing device 30 furthermore has a camera 42, with which a surface of the printing table 10, on which printing material to be printed is to be arranged, can be detected.
  • An imprinted on the surface of the printing table 10 printed matter is indicated by dashed lines in the representation of Fig. 4 indicated by the reference numeral 44 only schematically.
  • the position of the printing material 44 on the surface of the printing table 10 is detected by the camera 42 and after suitable image processing in the control unit 40 controls the printhead 34 and the means not shown for moving the printhead on the printing table surface 10 so that the Print image is aligned with the detected position of the printing material 44.
  • the printed image is then placed exactly in the intended orientation on the printing material 44.
  • the printing table 10 is provided on its surface with numerous openings 46, to which a negative pressure via a pump 48 can be applied.
  • the generation of a negative pressure in the region of the openings 46 serves to hold one on the printing table surface 10 applied printing material, for example, the printing material 44, during a printing operation.
  • the pump 48 and not shown devices within the pressure table 10 for driving the individual openings 46 are also controlled via the control unit 40.
  • the control unit 40 ensures that a negative pressure is applied only to those openings 46, which are located below a printed material 44 detected by the camera 42. In the presentation of the Fig. 4 would thus be applied only to those openings 46, which are within the dashed rectangle, which symbolizes the printing material 44, a negative pressure.
  • a laser 50 is provided, which is controlled by the control unit 40.
  • laser lines 52 can be projected onto the surface of the printing table 10, which indicate an intended position for a printed material 44.
  • the laser lines 52 are in the illustration of Fig. 4 indicated by dash-dotted lines.
  • the laser lines 52 are thus projected onto the surface of the printing table 10 before the printing material 44 is applied.
  • An operator can then push the printing material 44 and optionally other printing materials in the predetermined by the laser lines 52 positions. It is not necessary that the operator aligns the printing material 44 exactly on the laser lines 52, since the position of the printing material 44 is detected before printing by the camera 42 and the control unit then generates the printed image corresponding to the detected position of the printed matter 44th aligns.

Landscapes

  • Controlling Sheets Or Webs (AREA)
  • Screen Printers (AREA)
  • Ink Jet (AREA)
EP12158200A 2011-04-07 2012-03-06 Procédé et dispositif d'impression d'au moins une matière à imprimer Withdrawn EP2508347A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011006929A DE102011006929A1 (de) 2011-04-07 2011-04-07 Verfahren und Vorrichtung zum Bedrucken wenigstens eines Druckstoffes

Publications (1)

Publication Number Publication Date
EP2508347A1 true EP2508347A1 (fr) 2012-10-10

Family

ID=45811343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12158200A Withdrawn EP2508347A1 (fr) 2011-04-07 2012-03-06 Procédé et dispositif d'impression d'au moins une matière à imprimer

Country Status (3)

Country Link
US (1) US20120256995A1 (fr)
EP (1) EP2508347A1 (fr)
DE (1) DE102011006929A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013005204A1 (fr) 2011-07-05 2013-01-10 Hewlett-Packard Industrial Printing Ltd. Imprimante et procédé d'impression
WO2014207007A1 (fr) * 2013-06-26 2014-12-31 Oce-Technologies B.V. Procédé de production d'impressions sur une imprimante à plat, appareil et programme informatique associés
EP2905143A1 (fr) * 2014-02-07 2015-08-12 Roland DG Corporation Imprimante et procédé d'impression sans gabarit
EP3085544A1 (fr) * 2015-04-24 2016-10-26 OCE-Technologies B.V. Procede d'impression sur un objet multimedia dans un systeme d'impression a lit plat
EP3090877A1 (fr) * 2015-05-05 2016-11-09 OCE-Technologies B.V. Procede de formation de languettes d'alignement de substrat sur une surface d'impression
WO2018114303A1 (fr) 2016-12-22 2018-06-28 Agfa Nv Imprimante à jet d'encre à système à vide

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JP6058465B2 (ja) * 2013-05-13 2017-01-11 ローランドディー．ジー．株式会社 印刷装置および印刷方法
US20170217212A1 (en) * 2016-02-03 2017-08-03 Océ Holding B.V. Method for printing an image on a substrate on a support body
JP6626852B2 (ja) * 2017-04-25 2019-12-25 株式会社イビソク 遺物用注記印刷装置
US11104160B2 (en) 2017-12-14 2021-08-31 Hewlett-Packard Development Company, L.P. Lateral adjustment of print substrate based on a camera image
IT201800009578A1 (it) 2018-10-18 2020-04-18 System Ceram Spa Metodo/dispositivo di localizzazione di un supporto di vetro e metodo/sistema di stampa su detto supporto di vetro comprendente detto metodo/dispositivo di localizzazione

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DE19929273A1 (de) * 1999-06-25 2000-12-28 Eastman Kodak Co Tintenstrahldrucker für die Herstellung von Fotoabzügen
WO2002011987A1 (fr) * 2000-08-03 2002-02-14 Agfa-Gevaert Aktiengesellschaft Imprimante a jet d'encre et procede pour imprimer un materiau image dans une imprimante a jet d'encre
US20020110400A1 (en) * 2001-02-09 2002-08-15 Beehler James O. Printer with vacuum platen having selectable active area
US20090120249A1 (en) * 2007-11-14 2009-05-14 Achim Gauss Device For Refining Workpieces
US20100213666A1 (en) * 2009-02-24 2010-08-26 Xerox Corporation Media transport device with vacuum-controlled positioning

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Publication number Priority date Publication date Assignee Title
DE19929273A1 (de) * 1999-06-25 2000-12-28 Eastman Kodak Co Tintenstrahldrucker für die Herstellung von Fotoabzügen
WO2002011987A1 (fr) * 2000-08-03 2002-02-14 Agfa-Gevaert Aktiengesellschaft Imprimante a jet d'encre et procede pour imprimer un materiau image dans une imprimante a jet d'encre
US20020110400A1 (en) * 2001-02-09 2002-08-15 Beehler James O. Printer with vacuum platen having selectable active area
US20090120249A1 (en) * 2007-11-14 2009-05-14 Achim Gauss Device For Refining Workpieces
US20100213666A1 (en) * 2009-02-24 2010-08-26 Xerox Corporation Media transport device with vacuum-controlled positioning

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013005204A1 (fr) 2011-07-05 2013-01-10 Hewlett-Packard Industrial Printing Ltd. Imprimante et procédé d'impression
EP2712343A4 (fr) * 2011-07-05 2015-07-22 Hewlett Packard Ind Printing Imprimante et procédé d'impression
US10471743B2 (en) 2011-07-05 2019-11-12 Hp Scitex Ltd. Printer and a method of printing
WO2014207007A1 (fr) * 2013-06-26 2014-12-31 Oce-Technologies B.V. Procédé de production d'impressions sur une imprimante à plat, appareil et programme informatique associés
US9656492B2 (en) 2013-06-26 2017-05-23 Oce-Technologies B.V. Method for generating prints on a flatbed printer, apparatus therefor and a computer program therefor
EP2905143A1 (fr) * 2014-02-07 2015-08-12 Roland DG Corporation Imprimante et procédé d'impression sans gabarit
US9242494B2 (en) 2014-02-07 2016-01-26 Roland Dg Corporation Printer and printing method
EP3085544A1 (fr) * 2015-04-24 2016-10-26 OCE-Technologies B.V. Procede d'impression sur un objet multimedia dans un systeme d'impression a lit plat
US9862218B2 (en) 2015-04-24 2018-01-09 Oce-Technologies B.V. Method for printing on a media object in a flatbed printing system
EP3090877A1 (fr) * 2015-05-05 2016-11-09 OCE-Technologies B.V. Procede de formation de languettes d'alignement de substrat sur une surface d'impression
WO2018114303A1 (fr) 2016-12-22 2018-06-28 Agfa Nv Imprimante à jet d'encre à système à vide

Also Published As

Publication number Publication date
DE102011006929A1 (de) 2012-10-11
US20120256995A1 (en) 2012-10-11

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