EP2189289B1 - Punktmatrixdruckverfahren und Vorrichtung mit Zuführungsalternation - Google Patents
Punktmatrixdruckverfahren und Vorrichtung mit Zuführungsalternation Download PDFInfo
- Publication number
- EP2189289B1 EP2189289B1 EP08169535A EP08169535A EP2189289B1 EP 2189289 B1 EP2189289 B1 EP 2189289B1 EP 08169535 A EP08169535 A EP 08169535A EP 08169535 A EP08169535 A EP 08169535A EP 2189289 B1 EP2189289 B1 EP 2189289B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- swath
- medium
- feeding
- recording
- distance
- 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.)
- Not-in-force
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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
- 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
- B41J2/2132—Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding
-
- 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
- B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
- B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
- B41J11/425—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering for a variable printing material feed amount
Definitions
- the present invention is related to methods and apparatuses for dot matrix printing, such as ink jet printing.
- Methods provide for printing an image in swaths.
- the drying time of each swath before recording a neighbouring swath is optimized, while the printing speed is kept high.
- Methods and apparatuses of the invention reduce banding phenomena that are caused by wet swaths that overlap or touch.
- the dot matrix printer On a traditional dot matrix printer, a family of printers to which an ink jet printer belongs, an image is recorded (formed) on a printable medium by printing a series of complementary rectangularly shaped stripes (also called bands or swaths).
- the dot matrix printer therefore comprises a print head for recording ink dots on the medium.
- the print head is also referred to as a scanning carriage.
- Ink dots are typically recorded by firing ink droplets from nozzles provided on the print head.
- the nozzles are arranged in one or more arrays. The arrays have a length which is typically much smaller than the dimension of the print medium.
- a swath is therefore recorded by a single translation of the print head relative to the medium in a predetermined direction, typically transverse to the arrayed disposition of the nozzles.
- the recording of a swath is referred to as a fast scan or a pass.
- the direction of the fast scan is referred to as the fast scan direction or the direction of a pass of the print head.
- Ink fired repetitively from one nozzle during a pass appears on the printable medium along a line. This line is called a raster or pixel line, which also refers to a row of the dot matrix.
- the swaths are either printed adjacent to each other, or overlap to a certain degree. The latter case is often referred to as multi-pass printing.
- raster lines in between existing raster lines can be printed so as to increase the resolution of the printed image. This is referred to as interlace printing.
- ink bleeding may be present throughout the printed area.
- other artefacts such as step mismatches, banding, etc. enhance the visibility of ink bleeding along the borders of print swaths.
- Ink bleeding or ink migration across the borders of swaths is referred to in the art as "banding" phenomena.
- Patent application WO 2008/040712 discloses shingle masks that can be used for that purpose.
- dot matrix (ink jet) printing apparatuses can print bidirectionally.
- the print head records swaths in passes that have alternately opposite directions.
- the order of superposition of ink colourants can possibly not be the same for bidirectional passes. This can lead to differences in hue across consecutive swaths that are recorded bidirectionally.
- Another artefact can occur when printing bidirectionally overlapping swaths.
- a first swath is recorded from left to right
- the consecutively recorded swath will be recorded from right to left.
- the arrival position for the print head in the first swath is also the print head's starting position in the second swath. Consequently, the ink dry time for the first swath is less at the arrival position compared to the starting position (of the print head in the first swath).
- the ink recorded in the first swath has less time to dry before the second swath is recorded than at the other end. This can give rise to bidirectional banding artefacts.
- the present invention aims to provide a method of dot matrix printing which at least partially overcomes the drawbacks of prior art methods. It is an aim of the invention to provide at least an alternative method of dot matrix printing.
- methods of dot matrix printing of the invention aim to reduce banding artefacts caused by wet ink bleeding compared to methods of the prior art, in particular at swath borders and/or at overlapping portions of swaths.
- Methods of dot matrix printing of the invention aim to reduce bidirectional banding artefacts compared to methods of the prior art.
- the present invention also aims to provide apparatuses for dot matrix printing which do not suffer from drawbacks of prior art apparatuses, particularly drawbacks of banding artefacts caused by wet ink bleeding and/or bidirectional banding artefacts. It is an aim of the invention to provide at least an alternative apparatus for dot matrix printing.
- the present invention also aims to overcome at least partially the banding phenomena as identified above without (substantial) loss of printing speed.
- a method of dot matrix printing in particular ink jet printing.
- Printing is performed by a print head recording print data on a medium in swaths by scanning the print head relative over the medium along a fast scan direction.
- Methods according to the invention comprise the following steps. Firstly, recording a first swath of corresponding print data. Secondly, feeding the medium relative to the print head in a first direction transverse to the fast scan direction and over a first distance. Thirdly, recording a second swath of corresponding print data at the first distance from the first swath, wherein the first distance is such that the second swath does neither touch nor overlap the first swath.
- the five steps as indicated above are preferably performed consecutively in the order as indicated.
- the third swath is recorded at a location on the medium interposed between the first and the second swath.
- the first direction corresponds to a direction wherein the medium is advanced relative to the print head (i.e. a forward feed).
- methods according to the present invention comprise iterating the second to the fifth steps.
- methods according to the present invention further comprise at least one sequence of a further feeding step followed by a further recording step.
- the direction of feeding the medium of the further feeding step is the reverse of the direction in the last feeding step preceding said further feeding step.
- the distance over which feeding the medium of the further feeding step is such that the swath recorded in the further recording step does neither touch, nor overlap the swath recorded in the last recording step preceding said further recording step.
- methods according to the invention comprise iterating a sequence consisting of the second to the fifth steps and said at least one sequence.
- the medium feeding distance is about equal for all feeding steps in the first and/or the second direction. More preferably, the medium feeding distance is about equal for all feeding steps in the backward feeding direction relative to the print head.
- the term "about equal” refers to values falling within a range between 0.9 and 1.1 times the average relevant feeding distance, more preferably between 0.95 and 1.05 times said average.
- the medium feeding distance is different for at least two feeding steps in the first or the second direction. More preferably, the medium feeding distance is different for at least two feeding steps in the advance feeding direction relative to the print head.
- the advance feeding direction refers to the direction of feeding the medium in which the medium is increasingly fed relative to the print head, in other words it is the direction in which the medium is applied to the print head (the printing apparatus).
- the backward feeding direction refers to the reverse of the advance feeding direction.
- p swaths are superposed, p ⁇ 1 (hence, can be a single or a multi-pass print method).
- the case p 1, refers to single pass printing, wherein no swaths are superposed (only one swath is recorded at each printing location).
- p swaths are superposed, p ⁇ 1 (hence, can be a single or a multi-pass print method).
- the case p 1, refers to single pass printing, wherein no swaths are superposed (only one swath is recorded at each printing location).
- the step of feeding in the first direction and/or the step of feeding in the second direction comprises the steps of feeding over a larger distance than respectively the first or second distance followed by feeding in the reverse direction to the position corresponding with respectively the first or second distance.
- the step of recording a swath comprises curing the ink of said swath by UV radiation.
- an apparatus for dot matrix printing particularly for ink jet printing.
- Apparatuses according to the invention comprise means for carrying out methods of the present invention.
- Apparatuses according to the invention preferably comprise a print head for recording swaths of ink on a medium by scanning the print head relative over the medium along a fast scan direction.
- Apparatuses according to the invention preferably comprise means for feeding the medium relative to the print head in a first direction transverse to the fast scan direction and in a second direction reverse of the first direction.
- apparatuses of the invention comprise means for UV curing recorded ink.
- Figure 1 represents a plan view of a print medium (sheet) onto which three swaths are recorded according to methods of the invention.
- Figure 2 represents the order of recording swaths according to a first preferred embodiment of the invention, applied to a two-pass print method.
- Figure 2 shows a plan view of a print medium and different positions of a print head 20 on the medium.
- the print head is arranged to perform (bidirectional) fast scans along a direction F.
- Each represented position of the print head (nozzle array) represents a swath 21, wherein swaths located successively on the medium are numbered with successive natural numbers n, n+1, n+2,...
- Reference symbols b i and the curved arrows represent the chronological order of recording the swaths and hence represent chronologically successive positions of the print head relative to the medium.
- Figure 3 represents the order of recording swaths according to a second preferred embodiment of the invention, applied to a one-pass print method. Swaths are represented by the corresponding position of the print head (nozzle array) as explained for figure 2 .
- Figure 4 represents the order of recording swaths according to a third preferred embodiment of the invention, applied to a one-pass print method. Swaths are represented by the corresponding position of the print head (nozzle array) as explained for figure 2 .
- Figure 5 represents an improved method of feeding in order to reduce positioning inaccuracies due to play and/or backlash.
- a printing apparatus is represented by a print head 51 and feed rolls 52.
- the print head records a swath 53 on a print medium 50.
- Embodiments of the present invention will be described wherein a print head carries out fast scans over a print medium and the medium is repeatedly fed to the printing apparatus (i.e. scanning carriage print heads).
- the invention is not limited to such printing apparatuses, but can be applied as well to those types of apparatuses, wherein the print head carries out both fast scans and feed movements.
- the former types of apparatuses are preferred for carrying out aspects of the invention.
- print data is recorded on a medium in swaths of which the longitudinal orientation is arranged along (or parallel with) the direction of the fast scan.
- scanning a pixel location refers to the fact that during the scanning said pixel location is configured to be addressed by the print head. Hence, each time a pixel location is scanned by the print head, that pixel location is configured to receive ink. Whether the pixel location actually receives ink during said scan depends on the print data.
- the expression scanning a same pixel location in different passes refers to that print data relating to a same pixel is configured to be recorded in different passes.
- swaths are superposed refers to swaths that at least partially are made to overlap.
- overlapping is to be interpreted on a macroscopic level, i.e. it refers to overlapping of areas which are larger than one pixel, preferably larger than two pixels, more preferably larger than four pixels and most preferably larger than 10 pixels (smallest size).
- a first swath 11 of corresponding print data is recorded (by a print head) on a first area A1 of a print medium 10.
- the medium is fed relatively to the print head (print apparatus) in a first (feed) direction D1, which is different from the fast scan direction F (direction of longitudinal orientation of the swaths) and over a first distance to a second area A2 of the print medium 10.
- a second swath 12 of print data is recorded on the second area A2.
- the print data recorded in the second swath is print data corresponding to the second area.
- the first direction D1 is transverse to the fast scan direction F.
- the first direction D1 is preferably (substantially) perpendicular to the fast scan direction F. More preferably, the absolute angle between the first direction and the fast scan direction falls in the range between 70° and 110°, most preferably between 80° and 100°.
- the first direction (feed direction) is preferably parallel to the arrayed disposition of the nozzles in the print head.
- the first distance is such that when the second swath 12 of corresponding print data is recorded, the second swath does neither touch nor overlap the first swath 11.
- the first distance is hence larger than the breadth B of a swath.
- the second area A2 hence does neither touch nor overlap the first area A1.
- the medium 10 After recording the second swath 12, the medium 10 is fed in a second (feed) direction D2, which is the reverse direction of the first direction D1 and over a second distance to a third area A3 of the print medium. Thereafter, a third swath 13 of print data is recorded on the third area A3. The print data recorded in the third swath is print data corresponding to the third area.
- the second distance is such that when the third swath 13 of corresponding print data is recorded, the third swath 13 does neither touch nor overlap the second swath 12.
- the second distance is selected larger than the breadth B of a swath.
- the third swath can touch or overlap the first swath.
- swaths that are recorded consecutively (successively) in time do neither touch nor overlap.
- Methods according to the invention give the swaths additional drying time compared to prior art methods before recording a touching or overlapping swath.
- the drying time of a swath is used for recording other, non-touching swaths
- the present print methods can achieve high printing speeds.
- the ink of the latter swath can be dry and ink bleeding can be reduced.
- Method steps are preferably iterated.
- a single iteration can consist of the steps for recording the first to the third swath as identified above.
- the third swath is then used as the starting point of a new iteration (i.e. the third swath is considered a first swath for the successive iteration step).
- the medium is fed in the first direction and over the first distance. Thereafter, a new (second) swath is recorded, etc.
- a single iteration can alternatively comprise steps for recording more than three swaths.
- recording of the swaths can occur with alternating feed direction as identified above.
- Initialisation and/or termination steps can be applied on the methods, in which the order of recording the swaths can differ from the above iterations.
- swaths recorded consecutively in time can touch or overlap.
- a wait time before recording one or more of those swaths can be used for increasing the ink drying time.
- aspects of the invention are applied to p-pass printing methods wherein p ⁇ 1 (p is a natural number).
- p > 1 this refers to a multi-pass printing method (hence, p swaths are superposed).
- b 2i refers to a second swath, recorded after the first swath
- b 2i-1 refers to a third swath, which is to be considered a first swath for the following two members of the sequence.
- p is preferably even.
- b i refers to the location on the print medium where a swath is to be recorded.
- index i in b i refers to the chronological (time) order in which the swaths are to be printed in accordance with methods of the invention. Hence, swath b i is recorded prior (in time) to swath b i+1 .
- the first embodiment will now be illustrated by an example.
- the example is illustrated in figure 2 .
- the n-index indicates the order of occurrence of the swaths on the medium.
- a backward feed has to be carried out from the position corresponding with swath n+3 to the position corresponding with swath n.
- a forward feed is carried out from the position corresponding with swath n to the position corresponding with swath n+5, etc.
- a single iteration step in the above example is formed by the recording of three successive swaths, e.g.: n+3, n, n+5.
- a successive iteration step starts from the third swath of the previous iteration step: n+5, n+2, n+7.
- a single iteration step in the above example is formed by the recording of six swaths.
- the chronologically sixth recorded swath forms the first swath in the successive iteration step.
- the second embodiment is preferably applied to p-pass print methods in which p is odd.
- every third swath that is recorded is a swath that is interposed between the first and the second swath (i.e. between the two previously recorded swaths).
- swath n+1 is recorded after swath n and swath n+3.
- Figure 4 illustrates a third preferred embodiment applied to a one-pass print method.
- the order of recording the swaths is: n+2, n, n+3, n+1, n+6, n+4, n+7, n+5, etc.
- a single iteration step in the above example is formed by the recording of five swaths (e.g. n+2 to n+6).
- the chronologically fifth recorded swath (e.g. n+6) forms the first swath in the successive iteration step.
- An advantage of a constant backward feed is that the printing apparatus can be designed with a maximal backward feed specification.
- the positioning accuracy of the print medium with reference to the print head can be enhanced by performing reverse feeds (with reference to the previously executed feed direction) in two steps, as illustrated in figure 5 .
- a reverse feed 54 is carried out over a larger distance (over-feed) than the target distance.
- a forward feed 55 is carried out to position the medium relative to the print head at target location.
- the two-step feed arrangement allows to minimize the influence of backlash or play on print medium positioning accuracy.
- Printing methods of the invention can be UV ink jet printing methods, comprising the use of ink curable by ultra-violet (UV) or actinic radiation.
- Such printing methods comprise a step of UV curing recorded ink, preferably directly after or during the recording of a swath.
- the invention provides apparatuses for dot matrix printing.
- Apparatuses comprise means for carrying out methods of the invention.
- apparatuses comprise a print head or other means for recording swaths of ink on a medium.
- Print heads can refer to a scanning carriage.
- Apparatuses further comprise means for feeding the medium in a forward and a reverse direction with reference to the print head.
- the forward and reverse directions are parallel to each other and different from the fast scan direction.
- Said means for feeding the medium can comprise feeding means as are known in the art, such as a belt, a roll, possibly coated with grit.
- apparatuses according to the invention comprise means for UV curing recorded ink.
- Said means are preferably provided on the scanning carriage (e.g. a UV light source) and are preferably configured for curing recorded ink during each recording fast scan.
- Methods and apparatuses for dot matrix printing of the invention allow recorded swaths for an increased ink dry time. This reduces or eliminates ink bleeding effects at the borders of touching or overlapping swaths. In case of bidirectional printing, bidirectional banding can be reduced or eliminated, because an overlapping swath is recorded when the underlying swath has had sufficient time to dry.
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- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Ink Jet (AREA)
Claims (15)
- Punktmatrixdruckverfahren, wobei ein Druckkopf Druckdaten auf einem Medium (10) in Streifen aufzeichnet, indem der Druckkopf relativ über das Medium entlang einer schnellen Abtastrichtung abtastet, wobei das Verfahren die folgenden Schritte umfasst:(i) Aufzeichnen eines ersten Streifens (11) entsprechender Druckdaten, und(ii) Zuführen des Mediums relativ zum Druckkopf in einer ersten Richtung, die quer zur schnellen Abtastrichtung verläuft, und über eine erste Distanz,
dadurch gekennzeichnet, dass es ferner die folgenden Schritte umfasst:(iii) Aufzeichnen eines zweiten Streifens (12) entsprechender Druckdaten in der ersten Distanz vom ersten Streifen, wobei die erste Distanz derart gewählt ist, dass der zweite Streifen den ersten Streifen weder berührt noch überlappt,(iv) Zuführen des Mediums relativ zum Druckkopf in einer zweiten Richtung und über eine zweite Distanz, wobei die zweite Richtung die umgekehrte Richtung der ersten Richtung ist, und(v) Aufzeichnen eines dritten Streifens (13) entsprechender Druckdaten in der zweiten Distanz vom zweiten Streifen, wobei die zweite Distanz derart gewählt ist, dass der dritte Streifen den zweiten Streifen weder berührt noch überlappt. - Verfahren nach Anspruch 1, wobei der dritte Streifen an einer Stelle am Medium aufgezeichnet wird, die sich zwischen dem ersten und dem zweiten Streifen befindet.
- Verfahren nach Anspruch 1 oder 2, umfassend das Wiederholen der Schritte (ii) bis (v).
- Verfahren nach Anspruch 1 oder 2, ferner umfassend zumindest eine Sequenz eines weiteren Schritts des Zuführens des Mediums gefolgt von einem weiteren Schritt des Aufzeichnens eines Streifens, wobei in dem weiteren Schritt des Zuführens des Mediums das Medium in einer Richtung zugeführt wird, die die umgekehrte Richtung der Zuführrichtung im letzten Schritt des Zuführens vor dem weiteren Schritt des Zuführens ist, und wobei die Distanz, über die das Medium in dem weiteren Schritt des Zuführens zugeführt wird, derart gewählt ist, dass der Streifen, der im weiteren Schritt des Aufzeichnens aufgezeichnet wird, den Streifen, der im letzten Schritt des Aufzeichnens vor dem weiteren Schritt des Aufzeichnens aufgezeichnet worden ist, weder berührt noch überlappt.
- Verfahren nach Anspruch 4, umfassend das Wiederholen der Schritte (ii) bis (v) und der zumindest einen Sequenz.
- Verfahren nach einem der Ansprüche 3 bis 5, wobei die Distanz, über die das Medium zugeführt wird, bei allen Zuführschritten in der ersten und/oder der zweiten Richtung gleich ist.
- Verfahren nach einem der Ansprüche 3 bis 6, wobei die Distanz, über die das Medium zugeführt wird, bei allen Zuführschritten in der Richtung der Rückwärtszufuhr des Mediums relativ zum Druckkopf ungefähr gleich ist.
- Verfahren nach einem der vorherigen Ansprüche zum Single-Pass- oder Multi-Pass-Drucken, wobei p-Streifen überlagert sind, p ≥ 1, und wobei die chronologische Reihenfolge des
EP 08 169 535 Aufzeichnens von Streifen am Medium, wenn Streifen, die am Medium aufeinanderfolgend positioniert sind, mit aufeinanderfolgenden natürlichen Zahlen nummeriert sind, zumindest teilweise dieser Sequenz folgt:
wobei s eine gerade natürliche Zahl ist, die größer als oder gleich p ist, und bi eine natürliche Zahl ist, die der Streifen repräsentiert, die an Position i in der Sequenz aufgezeichnet wurde. - Verfahren nach Anspruch 8, wobei p gerade ist.
- Verfahren nach einem der Ansprüche 1 bis 7 zum Single-Pass- oder Multi-Pass-Drucken, wobei p-Streifen überlagert sind, p ≥ 1, und wobei, die chronologische Reihenfolge des Aufzeichnens von Streifen am Medium, wenn Streifen, die am Medium aufeinanderfolgend positioniert sind, mit aufeinanderfolgenden natürlichen Zahlen nummeriert sind, zumindest teilweise dieser Sequenz folgt:
und bi = bi-2 + 1 für die anderen Glieder in der Sequenz, wobei bi der Streifen repräsentiert, der an Position i in der Sequenz aufgezeichnet wurde, und m eine natürliche Zahl = 0, 1, 2, 3 ... ist. - Verfahren nach Anspruch 10, wobei p ungerade ist.
- Verfahren nach einem der vorherigen Ansprüche, wobei der Schritt des Zuführens in der ersten Richtung und/oder der Schritt des Zuführens in der zweiten Richtung die Schritte des Zuführens über eine größere Distanz (54) als die jeweilige erste oder zweite Distanz, gefolgt vom Zuführen in die umgekehrte Richtung (55) zur Position, die der jeweiligen ersten oder zweiten Distanz entspricht, umfasst.
- Verfahren nach einem der vorherigen Ansprüche, wobei das Aufzeichnen eines Streifens das Trocknen der Tinte des Streifens mittels UV-Strahlung umfasst.
- Vorrichtung zum Punktmatrixdrucken, umfassend:- einen Druckkopf zum Aufzeichnen von Streifen aus Tinte auf einem Medium, indem der Druckkopf relativ über das Medium entlang einer schnellen Abtastrichtung abtastet, und- Mittel zum Zuführen des Mediums relativ zum Druckkopf in einer ersten Richtung, die quer zur schnellen Abtastrichtung verläuft, und in einer zweiten Richtung, die umgekehrt zur ersten Richtung verläuft, dadurch gekennzeichnet, dass sie ferner umfasst:- Mittel zum Ausführen der Schritte des Verfahrens nach einem der vorherigen Ansprüche.
- Vorrichtung nach Anspruch 14, umfassend Mittel zum UV-Trocknen von aufgezeichneter Tinte.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08169535A EP2189289B1 (de) | 2008-11-20 | 2008-11-20 | Punktmatrixdruckverfahren und Vorrichtung mit Zuführungsalternation |
AT08169535T ATE522361T1 (de) | 2008-11-20 | 2008-11-20 | Punktmatrixdruckverfahren und vorrichtung mit zuführungsalternation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08169535A EP2189289B1 (de) | 2008-11-20 | 2008-11-20 | Punktmatrixdruckverfahren und Vorrichtung mit Zuführungsalternation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2189289A1 EP2189289A1 (de) | 2010-05-26 |
EP2189289B1 true EP2189289B1 (de) | 2011-08-31 |
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Application Number | Title | Priority Date | Filing Date |
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EP08169535A Not-in-force EP2189289B1 (de) | 2008-11-20 | 2008-11-20 | Punktmatrixdruckverfahren und Vorrichtung mit Zuführungsalternation |
Country Status (2)
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EP (1) | EP2189289B1 (de) |
AT (1) | ATE522361T1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012090232A1 (en) * | 2010-12-30 | 2012-07-05 | Olivetti Spa | Ink jet printing method |
WO2016008520A1 (en) * | 2014-07-16 | 2016-01-21 | Hewlett-Packard Development Company, L.P. | Indexing printhead |
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JP2978459B2 (ja) * | 1996-09-30 | 1999-11-15 | キヤノン株式会社 | カラーフィルタの製造方法及び製造装置及びカラーフィルタ及び表示装置及び表示装置を備えた装置 |
EP1918112A1 (de) | 2006-11-03 | 2008-05-07 | Mutoh Europe N.V. | Verfahren zur Glättung eines Abdruckes |
-
2008
- 2008-11-20 AT AT08169535T patent/ATE522361T1/de not_active IP Right Cessation
- 2008-11-20 EP EP08169535A patent/EP2189289B1/de not_active Not-in-force
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Publication number | Publication date |
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EP2189289A1 (de) | 2010-05-26 |
ATE522361T1 (de) | 2011-09-15 |
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