EP3147124A1 - Verfahren zum dämpfen von druckspitzen in einer leitung für tinte eines tintenstrahldruckers - Google Patents

Verfahren zum dämpfen von druckspitzen in einer leitung für tinte eines tintenstrahldruckers Download PDF

Info

Publication number
EP3147124A1
EP3147124A1 EP16179165.2A EP16179165A EP3147124A1 EP 3147124 A1 EP3147124 A1 EP 3147124A1 EP 16179165 A EP16179165 A EP 16179165A EP 3147124 A1 EP3147124 A1 EP 3147124A1
Authority
EP
European Patent Office
Prior art keywords
ink
chamber
membrane
air
space
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Withdrawn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
EP16179165.2A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hans-Jürgen Ratjen
Jörg-Achim FISCHER
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP3147124A1 publication Critical patent/EP3147124A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17596—Ink pumps, ink valves
    • 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems

Definitions

  • the invention relates to a method for damping pressure peaks in a line for ink of an ink jet printer with the features of claim 1.
  • meniscus pressure This is the pressure of the ink at the orifices of the nozzles of the printhead. This pressure is nominally generally slightly negative to the environment (e.g., between about -5 and about -10 mbar). To ensure this pressure, regulated pumps are often used for certain desired pressures.
  • the printheads for the different colors are usually connected to a manifold and are parallel to each other.
  • This is usually a manifold for the called supply side and a manifold for the so-called return page provided (ink supply and ink removal).
  • the respective pressure in a manifold is a controlled variable for a pump associated with the manifold.
  • the target pressure in the return or supply manifolds is determined from the desired meniscus pressure, the breakdown of the print head internal resistances (the channels for the ink) and the hydrostatic height of the manifold above the meniscus level. For the calculation of the meniscus pressure, the pressure on the two manifolds can each be regarded as a potential that is divided by the head-internal resistances.
  • the US 8,042,902 B2 describes the determination of a liquid volume in a liquid chamber of a damper divided by a membrane into two parts. Preferably, this is half of the total volume of the damper, so that the membrane can oscillate within the damper, without applying to a wall of the damper housing.
  • the determination of the volume is made by comparing pressure pulsations, which arise at the damper by the pulsation of liquid pumps. The determination takes place, wherein once the volume of a smaller air chamber behind the membrane is decoupled from a larger buffer volume and at another time the two volumes are coupled.
  • the two measured Pulsation amplitudes can be converted in knowledge of the large volume of air in an air and thus also in a liquid volume in the damper.
  • the described determination can be repeated in printing pauses in order to check the operating point of the membrane.
  • the method according to the invention makes it possible to reliably damp pressure spikes in a line for ink of an inkjet printer.
  • the method according to the invention can comprise the further step: g) damping of pressure peaks with the membrane guided to its rest position after steps a to c or d to f.
  • a preferred embodiment of the invention can be characterized in that the air pressure - in the air pump, in the buffer, in the first room or in a three connecting line - is measured, preferably by means of a pressure sensor.
  • a preferred embodiment of the invention can be characterized in that step a) or step e) is terminated as soon as the measured air pressure begins to rise significantly, preferably substantially linearly.
  • a preferred embodiment of the invention may be characterized in that step b) or step d) is terminated as soon as the measured air pressure begins to fall significantly, preferably substantially linearly.
  • a preferred embodiment of the invention may be characterized in that a peristaltic pump is present as a pump and that the pump cycles are determined by counting the steps of the motor of the pump.
  • the motor of the pump is preferably a stepper motor, wherein the individual steps may be shares of engine revolutions.
  • the counted pump cycles may not be integer, eg rational. Alternatively, you can Also, a motor with timing disc or a motor with gear are used and a count of engine revolutions are performed.
  • a preferred embodiment of the invention can be characterized in that the pressure of the ink is kept constant.
  • FIG. 1 shown ink supply system or the ink supply device 1 supplies a print head 2 with ink.
  • Conventional printheads have in their interior a variety of smallest channels for the ink. These channels can be understood in a simplified way as flow resistors 2a and 2b.
  • the ink for the print head is initially stored in an ink reservoir 3 and is conveyed from there via an ink line 4, in which a pump 5 is arranged, to the input side of the print head.
  • a valve 6 is also provided, which can be opened and closed.
  • the print head is connected to the ink reservoir 3 via an ink line 7, in which a pump 8 is provided.
  • a valve 9 is provided, which can be opened and closed.
  • the described constellation allows ink to circulate through the printhead allow unused ink to be pumped back into the ink reservoir.
  • a line system 27 (a so-called manifold), which can form a complex line system and, for the sake of simplicity, is shown only schematically in the figure.
  • a line system or so-called manifold 28 may also be located. This too is simplified in the FIG. 1 shown.
  • pressure peaks may occur, which are damped by the measures described below.
  • the pressure spikes may be undesirable fluctuations or modulations of the pressure of the ink liquid, for example pressure pulses originating from the pumps or pressure pulses resulting from the start or end of the printing process and the concomitant increased or decreased ink consumption.
  • the supply side (ink line 4 or Manifold 27) is connected via an ink line 15 with a chamber 10.
  • the chamber 10 has a diaphragm 11 in its interior which divides the chamber into a first space 10a and a second space 10b.
  • the chamber is constructed symmetrically and arranged the membrane centrally.
  • the return side (ink line 7 or manifold 28) is connected to a chamber 16 via an ink line 20.
  • a diaphragm 17 is provided which divides the interior of the chamber into a first space 16a and a second space 16b.
  • the two opposite first spaces 10a and 16a are filled with air, provided that the respective membrane is in its rest position.
  • the supply of the first spaces 10a and 16a with air via an air pump 13. From this leads an air line 14 to a buffer 12 and from there to the first room 10a. Between the air pump 13 and the buffer 12, a valve 21 is provided, which is open and can be closed. Between the buffer 12 and the first space 10a, a pressure sensor 25 is provided. Accordingly, an air duct 19 leads via a buffer 18 to the first space 16a. Also in the air line 19, a valve 22, which can be opened and closed, and a pressure sensor 26 are provided.
  • the illustration in the middle shows by way of example the chamber 10 with the two spaces 10a and 10b and the membrane 11 in its rest position.
  • the membrane 11 is in the rest position when the same volume of air or ink is present on both sides of the membrane, that is to say in the first or second space 10a or 10b (if the chamber is symmetrical with respect to the two volumes constructed and the membrane is centrally mounted).
  • the membrane 11 is deflected from its rest position and is within the chamber 10 at the wall 23 at. At this time, the volume of the second space 10b substantially completely disappears. Accordingly, on the right side of the FIG. 2 illustrated the opposite situation in which the membrane is so deflected from its rest position that the volume of the first chamber 10a substantially completely disappears. In this case, the membrane 11 applies to another wall 24 of the chamber 10. Instead of the walls 23 and 24, it would also be possible to provide stops within the chamber 10, against which the membrane 11 rests in its respective deflected position. The same applies to the chamber 16.
  • the wall 23 or a corresponding stop are preferably constructed so that the ink is not shut off in the operating case by the membrane, ie continue to flow.
  • the wall may preferably be a grid, wherein the membrane rests against the grid and the ink flows behind the grid. It can also be provided not to move the membrane to the respective wall, but only so far until the tension of the membrane begins to increase substantially linearly, for example because the membrane begins to stretch.
  • the slope can be positive or negative. The moment of the transition from essentially constant tension to substantially linearly increasing tension of the diaphragm can be measured via a corresponding change in air pressure with the pressure sensors 25 or 26.
  • the respective damping on the supply or return side is achieved by the two chambers 10 and 16 or their use.
  • the pressure of the ink in the respective second space 10b or 16b is substantially equal to the pressure of the ink in the associated manifold 27 and 28, respectively.
  • a slight deviation of the pressure may result from the fact that the respective chamber 10 or 16 on a other height than the respective manifold 27 and 28 is arranged.
  • the first two spaces 10a and 16a are, as described above, filled with air and connected to a respective buffer 12 and 18, wherein the respective buffer determines the spring rate of acting as a damper chamber 10 and 16 respectively.
  • the respective membrane 11 or 17 is designed and arranged so that it builds around its rest position around no or only a very small residual stress, so that in the rest position only the air volume of the respective first space 10a and 16a together with the air volume the respectively associated buffer 12 or 18 is responsible for the respective spring rate of the damper on the supply or return side.
  • the air volume in the respective associated air ducts is so small that this can be neglected.
  • the extreme case of ink flow modulation is the transition from unprinted area to full area at full print speed. In such a transition, the ink consumption increases abruptly by the ejection of ink drops. The required volumetric flow jumps to a maximum value within 10 to 20 milliseconds, which results in a sudden pressure drop in the ink liquid in the supply lines.
  • the damper according to the invention is therefore designed so that the quantity of ink liquid consumed during the reaction time of a control circuit for the ink supply via the pump 5 (about 0.5 second) can be supplied from the second space 10b and / or 16b. By removing ink from the chamber 10 or 16 of the respective damper is to be achieved that the pressure of the ink liquid does not change substantially.
  • the membrane must be placed in its central position or rest position and held as possible there, so they can swing freely on both sides.
  • the position of the membrane is generally indeterminate and in its rest position, there is only a balanced pressure balance on both sides of the membrane, that is the air pressure on one side of the membrane is equal to the operating pressure of the ink liquid on the other side of the membrane.
  • air is pumped into the first space 10a or 16a until the chamber 10 or 16 or its second space 10b or 16b is freed of ink and the membrane 11 or 17 abuts against the wall 23 of the chamber. The moment the membrane abuts the wall 23, the air pressure begins to increase linearly. This increase takes place according to a characteristic given by the volume of the buffer 12 or 18 and the volume of the first space 10a or 16a. Upon reaching an air pressure that can be measured with commercially available pressure sensors 25 and 26 sufficiently accurate and marks the increase, the pumping of air is terminated in the respective first room.
  • air is pumped out of the respective first chamber 10a or 16a of the chamber until the chamber or the respective second chamber 10b or 16b of the chamber is filled with ink and the membrane contacts a wall 24 of the chamber invests.
  • the air pressure begins to sink in the direction of vacuum.
  • the time of application of the membrane to the wall in turn can be easily determined by means of a pressure sensor 25 or 26, since the pressure then begins to decrease substantially linearly or first linearly.
  • the number of pump cycles that occurs between the application of the membrane to the wall 23 and to the wall 24 is determined. For this purpose, for example, the steps or revolutions of a motor of the pump can be counted.
  • the membrane can be easily brought into its rest position using existing pumps and using pressure sensors.
  • the positioning of the diaphragm in its rest position is, as already described above, essential for a faultless operation of the damper in order to be able to reliably dampen pressure spikes in the ink conduit.
  • the operating pressure of the ink preferably remains during the process described above.
  • the described method may also be performed in a different order, first pumping air from the first space 10a or 16a and then pumping air back into the first space, with the membrane first against the wall 24 and then against the wall 23 applies.
  • air is eventually pumped out of the first space, with substantially half of the determined number of pump cycles being traversed.
  • An alternative method can be carried out as follows: The pump 5 is controlled so that the membrane 11 is guided to the wall 24. At this time, the volume V1 of the first space 10a disappears.
  • the buffer 12 (or its volume VP) is in the meantime connected to the atmosphere. Thereafter, the buffer is subjected to an air pressure pLuft, which is dimensioned so that the membrane 11 in its rest position is performed (for a given operating pressure p operation of the ink).

Landscapes

  • Ink Jet (AREA)
EP16179165.2A 2015-08-13 2016-07-13 Verfahren zum dämpfen von druckspitzen in einer leitung für tinte eines tintenstrahldruckers Withdrawn EP3147124A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015215449 2015-08-13

Publications (1)

Publication Number Publication Date
EP3147124A1 true EP3147124A1 (de) 2017-03-29

Family

ID=56409555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16179165.2A Withdrawn EP3147124A1 (de) 2015-08-13 2016-07-13 Verfahren zum dämpfen von druckspitzen in einer leitung für tinte eines tintenstrahldruckers

Country Status (4)

Country Link
US (1) US9840083B2 (zh)
EP (1) EP3147124A1 (zh)
CN (1) CN106427248B (zh)
DE (1) DE102016212733A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3459746A1 (en) * 2017-09-25 2019-03-27 Toshiba Tec Kabushiki Kaisha Fluid circulation apparatus and fluid ejection apparatus

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7102892B2 (ja) * 2017-05-29 2022-07-20 株式会社リコー 液体を吐出する装置
JP7103770B2 (ja) * 2017-09-25 2022-07-20 東芝テック株式会社 液体循環装置、及び液体吐出装置
JP7040202B2 (ja) * 2018-03-26 2022-03-23 ブラザー工業株式会社 液体吐出装置及びヘッドユニット
WO2020031072A1 (en) * 2018-08-06 2020-02-13 Entrust Datacard Corporation Drop-on-demand ink delivery systems and methods in card processing systems
JP7247637B2 (ja) * 2019-02-15 2023-03-29 セイコーエプソン株式会社 液体噴射装置
DE102020115729A1 (de) 2019-07-11 2021-01-14 Heidelberger Druckmaschinen Aktiengesellschaft Vorrichtung zur Versorgung eines Tinten-Druckkopfs einer Tinten-Druckmaschine mit flüssiger Tinte

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080198207A1 (en) * 2007-02-16 2008-08-21 Masahito Katada Pressure adjustment apparatus and image forming apparatus, and pressure adjustment method and liquid remaining amount determination method
US20120026256A1 (en) * 2010-07-30 2012-02-02 Hiroshi Shibata Liquid supplying apparatus and liquid ejecting apparatus
EP2574471A1 (en) * 2011-09-28 2013-04-03 Fujifilm Corporation Liquid supply device, liquid discharge device, and image recording apparatus
JP2013071247A (ja) * 2011-09-26 2013-04-22 Fujifilm Corp 画像記録装置
EP2891558A1 (en) * 2012-08-31 2015-07-08 FUJIFILM Corporation Design assistance device, method and recording medium for liquid-discharging device, manufacturing method for liquid-discharging device, and image-recording device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9023552D0 (en) * 1990-10-30 1990-12-12 Domino Printing Sciences Plc A two-stage pump for a continuous ink jet printer
US7267531B2 (en) * 2003-10-06 2007-09-11 Johnsondiversey, Inc. Current monitoring system and method for metering peristaltic pump
US7455377B2 (en) * 2005-03-16 2008-11-25 Hewlett-Packard Development Company, L.P. Printer having adjustable ink delivery system pressure
JP4725157B2 (ja) * 2005-03-28 2011-07-13 セイコーエプソン株式会社 液体噴射装置
JP2008143073A (ja) * 2006-12-12 2008-06-26 Ricoh Co Ltd 画像形成装置及び制御方法
JP5248816B2 (ja) 2007-07-25 2013-07-31 富士フイルム株式会社 液体吐出装置および画像形成装置
US9067425B2 (en) * 2007-10-12 2015-06-30 Videojet Technologies Inc. Fluid cartridge for an inkjet printer
JP5088193B2 (ja) * 2007-10-16 2012-12-05 セイコーエプソン株式会社 液体収容容器
JP5506452B2 (ja) * 2010-02-25 2014-05-28 エスアイアイ・プリンテック株式会社 圧力緩衝器、液体噴射ヘッド及び液体噴射装置
JP5621560B2 (ja) * 2010-12-03 2014-11-12 富士ゼロックス株式会社 緩衝装置、液体供給装置、及び液滴吐出装置
SE536206C2 (sv) * 2011-10-29 2013-06-25 Inkit Ab Vätskeförsörjningssystem för en bläckstråleskrivare
TWI600550B (zh) * 2012-07-09 2017-10-01 滿捷特科技公司 設有具空氣柔量室之墨水輸送系統的列印機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080198207A1 (en) * 2007-02-16 2008-08-21 Masahito Katada Pressure adjustment apparatus and image forming apparatus, and pressure adjustment method and liquid remaining amount determination method
US8042902B2 (en) 2007-02-16 2011-10-25 Fujifilm Corporation Pressure adjustment apparatus and image forming apparatus, and pressure adjustment method and liquid remaining amount determination method
US20120026256A1 (en) * 2010-07-30 2012-02-02 Hiroshi Shibata Liquid supplying apparatus and liquid ejecting apparatus
JP2013071247A (ja) * 2011-09-26 2013-04-22 Fujifilm Corp 画像記録装置
EP2574471A1 (en) * 2011-09-28 2013-04-03 Fujifilm Corporation Liquid supply device, liquid discharge device, and image recording apparatus
EP2891558A1 (en) * 2012-08-31 2015-07-08 FUJIFILM Corporation Design assistance device, method and recording medium for liquid-discharging device, manufacturing method for liquid-discharging device, and image-recording device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3459746A1 (en) * 2017-09-25 2019-03-27 Toshiba Tec Kabushiki Kaisha Fluid circulation apparatus and fluid ejection apparatus
CN109551897A (zh) * 2017-09-25 2019-04-02 东芝泰格有限公司 液体循环装置、液体喷出装置
US10737502B2 (en) 2017-09-25 2020-08-11 Toshiba Tec Kabushiki Kaisha Fluid circulation apparatus and fluid ejection apparatus
US11338587B2 (en) 2017-09-25 2022-05-24 Toshiba Tec Kabushiki Kaisha Fluid circulation apparatus and fluid ejection apparatus

Also Published As

Publication number Publication date
CN106427248A (zh) 2017-02-22
DE102016212733A1 (de) 2017-02-16
CN106427248B (zh) 2019-08-20
US9840083B2 (en) 2017-12-12
US20170043589A1 (en) 2017-02-16

Similar Documents

Publication Publication Date Title
EP3147124A1 (de) Verfahren zum dämpfen von druckspitzen in einer leitung für tinte eines tintenstrahldruckers
DE2543397C3 (de) Vorrichtung zum Dämpfen von Flüssigkeitsschwingungen in Tintenversorgungssystemen von Tintenmosaikschreibeinrichtungen
EP1248927B1 (de) Additivzerstäubungsvorrichtung
DE2722244C3 (de) Strömungsdruckregler
EP2387523B1 (de) Verfahren zum betreiben eines hydraulischen oder pneumatischen systems
DE3030795C2 (zh)
DE2905063A1 (de) Anordnung zur vermeidung des ansaugens von luft durch die duesen eines spritzsystems
DE10337484A1 (de) Mikrodosiervorrichtung und Verfahren zur dosierten Abgabe von Flüssigkeiten
DE3203795A1 (de) "tintenstrahlerzeugungseinrichtung"
EP2165770A1 (de) Austragvorrichtung
DE2926399A1 (de) Tintenzufuehrungsvorrichtung fuer einen tintenstrahldrucker
EP2613058B1 (de) Hydrauliksystem
DE102013109411A1 (de) Verfahren zur Bestimmung von hydraulischen Parametern
DE102018130159A1 (de) Reinigungseinheit
DE112019004824T5 (de) Flüssigkeitsbeschichtungsvorrichtung
DE2245485B2 (de) Hydraulischer Aufzug
DE2556169B2 (de) Impulsgesteuerte Tropfenspritzeinrichtung
DE3111123C2 (de) Tintenzufuhrsystem für Tintenstrahldrucker
DE102016106011A1 (de) Vorrichtung und Verfahren zur Tintenversorgung beim Digitaldruck
DE2027139A1 (de) Druckpumpensystem
DE2937742C2 (de) Vorrichtung zum Ansteuern von Schreibdüsen in Tintenmosaikschreibeinrichtungen
DE102008011007A1 (de) Farbschonende Farbversorgung von Druckmaschinen
DE102018108782B3 (de) Tintenstrahldrucker und Verfahren zum Befüllen des Tintenvolumens in einen Schwingungsdämpfer eines Tintenstrahldruckers
DE102017113756A1 (de) Verfahren und Vorrichtung zur Druckprüfung von beliebigen Prüflingen, deren Volumen mit einer Flüssigkeit gefüllt wird
DE102020205073A1 (de) Dosiereinrichtung und Verfahren zum Dosieren einer Flüssigkeit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170929

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HEIDELBERGER DRUCKMASCHINEN AG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: B41J 2/18 20060101AFI20210318BHEP

Ipc: B41J 2/175 20060101ALI20210318BHEP

INTG Intention to grant announced

Effective date: 20210414

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20210825