EP0216176B1 - Dispositif relatif aux orifices de sortie d'une tête d'impression d'une imprimante fonctionnant avec des encres de différentes couleurs - Google Patents

Dispositif relatif aux orifices de sortie d'une tête d'impression d'une imprimante fonctionnant avec des encres de différentes couleurs Download PDF

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Publication number
EP0216176B1
EP0216176B1 EP86111831A EP86111831A EP0216176B1 EP 0216176 B1 EP0216176 B1 EP 0216176B1 EP 86111831 A EP86111831 A EP 86111831A EP 86111831 A EP86111831 A EP 86111831A EP 0216176 B1 EP0216176 B1 EP 0216176B1
Authority
EP
European Patent Office
Prior art keywords
outlet orifices
ink
print head
line
ejection
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.)
Expired
Application number
EP86111831A
Other languages
German (de)
English (en)
Other versions
EP0216176A1 (fr
Inventor
Rüdiger Dipl.-Ing. Hillmann (FH)
Artur Dipl.-Ing. Milbrandt
Hubertus Dipl.-Ing. Reinfeld (Fh)
Emmeran Dipl.-Ing. Vollert
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0216176A1 publication Critical patent/EP0216176A1/fr
Application granted granted Critical
Publication of EP0216176B1 publication Critical patent/EP0216176B1/fr
Expired 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/52—Arrangement for printing a discrete number of tones, not covered by group B41J2/205, e.g. applicable to two or more kinds of printing or marking process
    • 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
    • B41J2/135—Nozzles
    • B41J2/145—Arrangement thereof

Definitions

  • the invention relates to an arrangement for the outlet opening in the print head of a multicolor ink writing device according to the preamble of patent claim 1.
  • Terminal or output devices in modern office communication or data processing systems require both the display of text and graphics.
  • a high output speed is required for the text display, whereby reduced requirements for the font quality are accepted.
  • draft quality or draft quality DQ In addition, there should also be the possibility of displaying texts in very good font quality. In this case, you accept a reduced output speed.
  • This font quality is known as the so-called Near Letter Quality NLQ.
  • a multicolored display is increasingly required for graphic display.
  • ink writing devices have proven to be suitable as devices which can meet these requirements.
  • These are devices that have a so-called ink print head for displaying characters or graphics.
  • such an ink print head has a plurality of outlet openings designed as so-called nozzles, from which individual droplets are ejected under the action of individually controllable piezoelectric drive elements, which form the desired character or the desired graphic pattern in a grid pattern on a recording medium moved relative to the print head.
  • nozzles designed as so-called nozzles, from which individual droplets are ejected under the action of individually controllable piezoelectric drive elements, which form the desired character or the desired graphic pattern in a grid pattern on a recording medium moved relative to the print head.
  • the object of the invention is to provide an arrangement for the nozzle outlet opening of the printhead of an ink writing device, with which the display of texts is possible both in draft and in fine writing quality, and with which multicolored texts or graphics of high quality can also be displayed.
  • the exemplary embodiment shown shows a write head 1 of an ink writing device known per se, in front of which a recording medium 2 is located.
  • the print head 1 essentially consists of an ink supply system 3, which is connected on the one hand to the ink channels 8 running inside the print head 1 and on the other hand to different ink containers 10, 11, 12, 13 which contain ink of different colors. It is known to use black, cyan, magenta and yellow inks to represent multicolored characters and graphics.
  • the ink channels 8 are each assigned individually controllable drive elements 9, preferably piezoelectric transducers. They end at the front end of the write head 1 facing the recording medium 2 on a nozzle plate 14, from the outlet openings of which individual ink droplets are ejected at a relatively high speed and sprayed against the recording medium 2 in accordance with the control.
  • black nozzles are provided for the ejection of ink droplets of black color.
  • Each m-outlet openings in the example, the m 5 outlet openings 50 to 54, 60 to 64 and 70 to 74, are provided for ejecting ink droplets of different colors. These are referred to below as paint nozzles.
  • paint nozzles are the basic colors in the so-called subtractive color mixing system, in the example the colors cyan, magenta and yellow.
  • All outlet openings 40 to 49, 50 to 54, 60 to 64 and 70 to 74 are each arranged in the vertical direction at a distance a, where a is determined by the grid provided for the character display and is selected such that the individual ink dots plotted in the grid Representation in the so-called design quality corresponds.
  • At least the number n of black nozzles is selected so that it covers the height of a writing line provided by the character grid. This ensures that a representation in the design quality can take place in a single pass.
  • the number of m outlet openings for the paint nozzles can be smaller (m n). However, they are arranged at the same height in the horizontal direction as the black nozzles. This enables the printing dots of the color black to no longer be formed by the mixture of the three primary colors in multi-color printing, but rather to be created by ink droplets of the color black.
  • a 9 x 9 character grid is defined for the display of text in the design quality.
  • the write head 1 in the example moves from left to right at a constant speed.
  • droplet ejection from selected outlet openings takes place at each time of printing via a printer control.
  • the printing times are hereby defined the grid columns S 1 to S9. In this way, as shown in Fig. 2, the character "A" is constructed in design quality.
  • the characters on a writing line are
  • the display of characters or graphics in the higher quality NLQ font quality takes place in the so-called multipass mode. This is understood to mean that several passes per writing line take place for the representation of the characters, the relative movement between the recording medium and the writing head taking place in fine stages on the one hand and the printing cycle being output in accordance with a fine division of the raster cycle.
  • the first measure is implemented by a micro-line circuit.
  • the second measure is achieved in that the printer control generates additional pressure pulses in so-called half-steps. 3 shows that, under these conditions, a character is displayed in a 17 x 17 grid.
  • the character “A” is printed in such a way that the dashed head 1 is first moved in the direction 15, the printer control unit emitting pressure pulses at all horizontal printing points, namely at the screen columns determined by a half-printing step. In this way, the horizontal line of the character “A” is formed by a correspondingly larger number of pressure points.
  • the printer controller triggers an advance of the recording medium 2, which corresponds to half the distance a between the outlet openings 40 to 49.
  • the write head 1 now occupies position 16 with respect to the record carrier 2. When the print head 1 returns in the direction 17, the vertical and the oblique lines of the character “A” are thus filled.

Landscapes

  • Ink Jet (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Claims (4)

1. Agencement pour les ouvertures de sortie situées dans la tête d'impression (1) d'un dispositif d'enregistrement utilisant des encres de plusieurs couleurs, dans lequel les ouvertures de sortie sont reliées par l'intermédiaire de canaux d'adduction d'encre (8) à des réservoirs d'encre (10-13), qui contiennent de l'encre de couleur noire ainsi que des encres possédant au moins trois autres couleurs de base, et dans lequel à chaque canal d'adduction d'encre est associé un transducteur piézoélectrique (9), la commande individuelle de ces transducteurs permettant d'éjecter des gouttelettes individuelles hors de ouvertures de sortie, et dans lequel la tête d'impression (1) est déplaçable dans la direction des lignes au-dessus d'un support d'enregistrement (2), caractérisé par le fait que les n ouvertures de sortie (40 à 4n), prévues pour l'éjection de gouttelettes d'encre noire, forment une première rangée verticale, le nombre (n) et la distance réciproque (a) des ouvertures étanttels que l'on peut représenter, sur le support d'enregistrement (2), des caractères sur une hauteur supérieure à celle d'une ligne d'enregistrement, avec une qualité d'inscription dite de projet (DQ), que les m ouvertures de sortie (50 à 5m, 60 à 6m, 70 à 7m) prévues pour l'éjection de gouttelettes formées des autres encres de base, sont disposées selon d'autres rangées verticales, la distance réciproque des ouvertures de sortie dans une rangée correspondant à la distance (a) des ouvertures dans la première rangée verticale, et que le support d'enregistrement (2) peut continuer à être déplacé au choix dans la direction verticale, après l'enregistrement d'une ligne d'enregistrement respective, d'au moins une demi-hauteur d'une ligne d'enregistrement (enregistrement conformément à DQ) ou bien d'une valeur qui correspond à la moitié (a/2) de la distance (a) des ouvertures de sortie de la rangée verticale (enregistrement conformément à ce qu'on appelle la qualité d'enregistrement embellie NLQ).
2. Agencement suivant la revendication 1, caractérisé par le fait que le nombre n des ouvertures de sortie (40 à 4n) prévues pour l'éjection de gouttelettes d'encre noire est supérieur au nombre m des ouvertures de sortie (50 à 5m, 60 à 6m, 70 à 7m) prévues respectivement pour une autre couleur de base.
3. Agencement suivant la revendication 2, caractérisé par le fait que le nombre n des ouvertures de sortie prévues pour l'éjection de gouttelettes d'encre de couleur noire, correspond au double du nombre des m ouvertures de sortie prévues respectivement pour une autre couleur de base (n = 2 . m).
4. Agencement suivant la revendication 1, caractérisé en ce que pour la représentation de caractères conformément à la qualité d'enregistrement embelli (NLQ), la tête d'impression ( 1 ) parcourt plusieurs fois une ligne d'enregistrement (fonctionnement dit à passages multiples).
EP86111831A 1985-08-30 1986-08-27 Dispositif relatif aux orifices de sortie d'une tête d'impression d'une imprimante fonctionnant avec des encres de différentes couleurs Expired EP0216176B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3531097 1985-08-30
DE3531097 1985-08-30

Publications (2)

Publication Number Publication Date
EP0216176A1 EP0216176A1 (fr) 1987-04-01
EP0216176B1 true EP0216176B1 (fr) 1988-11-17

Family

ID=6279806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111831A Expired EP0216176B1 (fr) 1985-08-30 1986-08-27 Dispositif relatif aux orifices de sortie d'une tête d'impression d'une imprimante fonctionnant avec des encres de différentes couleurs

Country Status (4)

Country Link
US (1) US4728968A (fr)
EP (1) EP0216176B1 (fr)
JP (1) JPS6256151A (fr)
DE (1) DE3661177D1 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4812859A (en) * 1987-09-17 1989-03-14 Hewlett-Packard Company Multi-chamber ink jet recording head for color use
US4864328A (en) * 1988-09-06 1989-09-05 Spectra, Inc. Dual mode ink jet printer
JPH03503146A (ja) * 1989-05-31 1991-07-18 スペクトラ　インコーポレイテッド バンディングを引き下げた双方向インクジェット印刷
JP2817224B2 (ja) * 1989-07-13 1998-10-30 松下電器産業株式会社 カラープリンタ
US5079571A (en) * 1990-05-25 1992-01-07 Tektronix, Inc. Interlaced printing using spaced print arrays
US5059984A (en) * 1990-05-25 1991-10-22 Tektronix, Inc. Method and apparatus for interlaced multicolor printing
JP3228476B2 (ja) * 1990-09-21 2001-11-12 キヤノン株式会社 記録装置
US5430469A (en) * 1991-06-05 1995-07-04 Canon Kabushiki Kaisha Tone recording method using ink recording head
JP3060330B2 (ja) * 1991-07-09 2000-07-10 キヤノン株式会社 画像処理装置及び方法
US6036300A (en) * 1992-02-26 2000-03-14 Canon Kabushiki Kaisha Method for recording image and apparatus therefor and recorded matter by such an apparatus
JP3190211B2 (ja) * 1994-01-25 2001-07-23 キヤノン株式会社 異なるインクジェット記録ヘッドを選択的に搭載可能なインクジェット記録装置及びそのヘッド回復方法
JP3299840B2 (ja) * 1994-04-20 2002-07-08 キヤノン株式会社 インクジェット記録方法、記録装置および情報処理システム
JP3313884B2 (ja) * 1994-05-31 2002-08-12 キヤノン株式会社 インクジェット記録方法
US5724079A (en) * 1994-11-01 1998-03-03 Internaional Business Machines Corporation Combined black and color ink jet printing
JP3305182B2 (ja) * 1995-02-02 2002-07-22 セイコーエプソン株式会社 シリアル記録装置
US6092887A (en) * 1996-07-22 2000-07-25 Minolta Co., Ltd. Ink-jet printer
KR0184566B1 (ko) * 1996-09-19 1999-05-15 삼성전자주식회사 시리얼 프린터의 드래프트 인쇄시 세로줄 정렬방법
US6089692A (en) * 1997-08-08 2000-07-18 Eastman Kodak Company Ink jet printing with multiple drops at pixel locations for gray scale
US6425653B1 (en) 2000-12-07 2002-07-30 Xerox Corporation Single pass printing of text among interleaved printing of non-text material
US6612685B1 (en) * 2002-02-11 2003-09-02 Lexmark International, Inc. Method of selectively underfeeding print media in an ink jet printer
US7967407B2 (en) * 2006-02-03 2011-06-28 R.R. Donnelley Use of a sense mark to control a printing system
US8770718B2 (en) * 2007-04-05 2014-07-08 Marvell World Trade Ltd. Inkjet printer having switched firing of adjacent nozzles applying common color
US8753026B2 (en) 2007-06-29 2014-06-17 R.R. Donnelley & Sons Company Use of a sense mark to control a printing system
US9098903B2 (en) * 2009-07-21 2015-08-04 R.R. Donnelley & Sons Company Systems and methods for detecting alignment errors
US10370214B2 (en) 2017-05-31 2019-08-06 Cryovac, Llc Position control system and method

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE2925812C2 (de) * 1979-06-26 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Tintendruckeinrichtung zum mehrfarbigen Bedrucken eines Aufzeichnungträgers
JPS5812764A (ja) * 1981-07-16 1983-01-24 Fujitsu Ltd インクジエツト記録方式
JPS58194575A (ja) * 1982-05-11 1983-11-12 Ricoh Co Ltd カラ−プロツタ
US4593295A (en) * 1982-06-08 1986-06-03 Canon Kabushiki Kaisha Ink jet image recording device with pitch-shifted recording elements
JPS5971865A (ja) * 1982-10-19 1984-04-23 Nec Corp カラ−インクジエツトプリンタ
IT1162919B (it) * 1983-07-20 1987-04-01 Olivetti & Co Spa Dispositivo di scirttura a getto di inchiostro particolarmente per stampanti ad alta velocita
DE3337495C2 (de) * 1983-10-14 1985-12-12 Nixdorf Computer Ag, 4790 Paderborn Ventilvorrichtung für einen Tintenmosaikschreibkopf

Also Published As

Publication number Publication date
JPS6256151A (ja) 1987-03-11
EP0216176A1 (fr) 1987-04-01
DE3661177D1 (en) 1988-12-22
US4728968A (en) 1988-03-01

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