EP1019252B1 - Dispositif de remplissage avec de l'encre, pour une tete d'impression a encre, et tete d'impression a encre pouvant etre ainsi remplie - Google Patents

Dispositif de remplissage avec de l'encre, pour une tete d'impression a encre, et tete d'impression a encre pouvant etre ainsi remplie Download PDF

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Publication number
EP1019252B1
EP1019252B1 EP98931892A EP98931892A EP1019252B1 EP 1019252 B1 EP1019252 B1 EP 1019252B1 EP 98931892 A EP98931892 A EP 98931892A EP 98931892 A EP98931892 A EP 98931892A EP 1019252 B1 EP1019252 B1 EP 1019252B1
Authority
EP
European Patent Office
Prior art keywords
ink
print head
ink jet
volume
jet print
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 - Lifetime
Application number
EP98931892A
Other languages
German (de)
English (en)
Other versions
EP1019252A1 (fr
Inventor
Günter Baitz
Joachim Burchart
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.)
Wincor Nixdorf International GmbH
Original Assignee
Wincor Nixdorf 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 Wincor Nixdorf GmbH and Co KG filed Critical Wincor Nixdorf GmbH and Co KG
Publication of EP1019252A1 publication Critical patent/EP1019252A1/fr
Application granted granted Critical
Publication of EP1019252B1 publication Critical patent/EP1019252B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41J2/005—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
    • B41J2/17503—Ink cartridges
    • B41J2/17556—Means for regulating the pressure in the cartridge
    • 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
    • B41J2/17503—Ink cartridges
    • B41J2/17506—Refilling of the cartridge
    • B41J2/17509—Whilst mounted in the printer
    • 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
    • B41J2/17566—Ink level or ink residue control

Definitions

  • the invention relates to an ink printer with an in Print line direction between side walls of a printer frame movable ink printhead and with a Ink filling device for filling the ink print head according to the preamble of claim 1.
  • Ink printheads have a limited supply of ink, which mostly for the printing of approx. 1-4 million printed characters is sufficient.
  • ink printers day and night, on weekends and also have to be available during holiday periods, such as. those in fax machines, as well as in applications with a high permanent load such as with cash register printers, the ink supply stored in the ink print head is sufficient not from.
  • JP-A-90 29 991 has therefore already been proposed an ink print head in an ink printer Refill installed condition.
  • This is the ink print head equipped with level indicators Report minimum and maximum permitted ink levels. If the minimum fill level is undershot, the ink printhead with its feed opening under an ink refill transported where with the help of a Electromagnets with a higher ink reservoir connected nozzle lowered into the feed opening and after reaching the maximum fill level becomes.
  • the discharge opening of the ink filling device is at one variable cylinder attached to the volume increase Takes ink from an ink reservoir and releases through the discharge opening when the volume is reduced.
  • the cylinder is dimensioned so that it is only absorbs and dispenses a small amount of ink.
  • When downsizing its volume becomes a connecting line sealed between the cylinder and the ink reservoir, so no ink from the latter into the cylinder or flow back into the ink reservoir can.
  • the volume of the cylinder is reduced by a movable one with the help of an electromagnet Piston, the increase in volume by a piston retracting spring.
  • the in the ink printhead too The amount of ink transferred is determined by the current supply of the electromagnet.
  • the known ink filling device also requires an electromagnet and additional control effort For this.
  • the electromagnet must be designed strong because this creates the flow pressure for the ink as well as the friction of the piston in the cylinder and the Resetting force of the spring must overcome.
  • the object of the invention is therefore an ink printer with an ink filling device for an ink print head and specify an ink print head that can be filled with this, at each without additional drive effort only a certain amount of ink in the ink printhead is transferred.
  • the invention is based on the consideration that the drive motor, which anyway for the postponement of the Ink printhead between the side walls of the ink printer along the print line is required to influence volume of the hollow body can be used if the hollow body on the inside of the side wall of the Printer frame is arranged.
  • the same drive motor is used to dock the ink printhead to the delivery port used.
  • the volume is then reduced by a further displacement of the ink print head against the Sidewall over the point of connection of the feed opening the ink printhead with the delivery opening.
  • the volume is increased by moving the Print head in the opposite direction.
  • a stepper motor in the sense of triple use also for volume control of the hollow body can be used. There are so no additional drive elements required.
  • the arrangement according to the invention has the advantage that only get a well-dosed volume of ink to the ink printhead can.
  • the arrangement has in terms of ink flow during every operating state of the ink printer an intrinsically safe operating state: only if the Influenced hollow bodies in the sense of a volume reduction the delivery opening is open. At constant volume or an increase in volume of the hollow body the discharge opening is securely closed so that there is no ink can flow out.
  • ink filler to the ink printhead amount of ink delivered by the size of the adjustment or the further shift determined.
  • This allows also partially blank inkjet print heads with the required amount of ink to be filled, and a use of ink printheads with different capacities becomes possible without changing the arrangement.
  • the hollow body is then only partially emptied. Its filling then takes place only correspondingly when the volume is increased the withdrawn subset.
  • Time and / or the amount of ink in an ink filling depending on a predefinable number since insertion of the ink print head in the ink printer and then dependent from the one printed since the last ink fill Pressure points or pressure characters controllable. Since those of the Ink droplets ejected from the print head can have a known volume from the number of the nozzles activated during printing the ink consumption can be calculated. The same applies to the number printed characters, if for these the average Ink consumption is known. A refill of the ink printhead with a calculated consumption corresponding amount of ink is easily possible. The time of a refill can also be canceled determine this way.
  • the volume reduction and enlargement several times immediately can be carried out one after the other. This process can through a special control command to the ink printer or depending on the operating time of the ink print head automatically triggered by the printer control itself become.
  • the discharge opening is formed on a tubular connecting piece, which when moving the ink printhead against the discharge opening in the feed opening of the ink print head immersed.
  • spring-loaded valve installed, which opens when the pressure in the hollow body a predetermined Value exceeds.
  • the arrangement of the nozzle on the Hollow body has the advantage that when the Movement of the ink print head against the delivery opening and thus against the hollow body the pressure in the latter immediately falls below the specified value and the valve closes.
  • the nozzle When moving the ink print head the nozzle initially remains away from the hollow body still connected to the feed opening, but it forms negative pressure in the area in front of the valve from, which ensures that the remaining in this area Ink is sucked into the ink printhead.
  • variable volume hollow body can optionally be used as compressible balloon made of elastic plastic, as bellows or also designed as a piston / cylinder arrangement his.
  • FIG. 1 shows an ink printer, generally designated 10 in a schematic front view.
  • An ink print head 12 is between a left side wall 14 and one right side wall 16 of a printer frame on a Parallel guide 18 along a print line in both Movable directions.
  • the shift of the Ink printhead 12 is made by a stepper motor 20 drivable belt transmission 22.
  • the ink printer 10 has a pressure range P of a maximum of one Record carrier can be taken.
  • An ink filling area follows the printing area P on the left F, in which a total designated 23 Ink filling device is located.
  • the ink filler 23 is as described below assembled: on the inside of the left side wall 14, a bellows 24 is attached. This is through its own elasticity with one towards its maximum Linear expansion a acting restoring force.
  • the bellows 24 is parallel to the print line compressible in the direction of arrow A against its restoring force.
  • a connecting line opens into the bellows 24 26 one, the other end with an ink reservoir 28 is connected.
  • In the connecting line 26 is a first valve spring-loaded in its closed position 30 installed. This opens when the pressure in the Bellows 24 lower than a predetermined value the pressure in the ink reservoir 28.
  • the bellows 24 On the end face 32 facing the ink print head 12 the bellows 24 is vertically a tubular socket 34 placed in a nozzle-shaped delivery opening 36 continues. In the neck 34 is in his Closed position spring-loaded second valve 38 installed. This opens when the pressure in the bellows 24 exceeds a predetermined value.
  • the discharge opening 36 is in coaxial alignment with a feed opening 40 arranged in a facing the ink filling device 23 Side wall 42 of the ink print head 12 introduced is.
  • the feed opening 40 is by shifting the ink print head 12 in the direction of arrow A against the discharge opening 36 connectable with this liquid-tight. 2 is this operating state of the ink printer 10 is shown, the bellows 24 are already compared to a small extent its maximum length a is compressed. The ink in the bellows 24 is thus there under a pressure so high that the first valve 30 is closed and the second valve 38 is open. The ink print head 12 continues in the direction of the arrow A moves, the bellows 24 is increasingly compressed and the ink flows through the discharge opening 36 and the feed opening 40 into one in the ink print head 12 located ink chamber 44. By ink delivery the pressure in the bellows 24 thus decreases far that the second valve 38 closes.
  • Fig. 3 shows this operating state, the ink print head 12 already to a small extent contrary to the Direction of arrow A moved away from the left side wall 14 has been. At this moment the bellows begins 24 to expand again, so that a negative pressure in it arises. This opens the first valve 30 so that Ink from the ink reservoir 28 into the bellows 24 can flow.
  • This operating state is shown in Fig. 1.

Landscapes

  • Ink Jet (AREA)

Claims (8)

  1. Imprimante (10) à encre, comportant une tête (12) d'impression à encre, coulissante dans la direction (A) des lignes d'impression entre des parois (14, 16) latérales d'un châssis d'imprimante, et comportant un dispositif (23) de remplissage d'encre, qui permet de remplir la tête (12) d'impression à encre alors qu'elle est montée dans l'imprimante (10) à encre,
    le dispositif (23) de remplissage d'encre comportant un réservoir (28) d'encre ainsi qu'une ouverture (36) de distribution, et la tête (12) d'impression à encre comportant une chambre (44) d'encre pourvue d'une ouverture (40) d'alimentation en encre,
    l'ouverture (36) de distribution étant montée sur un corps (24) creux de volume variable, qui prélève de l'encre du réservoir (28) d'encre en augmentant de volume et délivre de l'encre par l'ouverture (36) de distribution en diminuant de volume,
    l'ouverture (40) d'alimentation étant disposée sur une paroi (42) latérale de la tête (12) d'impression à encre,
    l'ouverture (36) de distribution étant disposée sur une paroi (14) latérale du châssis d'imprimante, en alignement coaxial avec l'ouverture (40) d'alimentation,
    l'ouverture (40) d'alimentation pouvant, en faisant coulisser la tête (12) d'impression à encre dans la direction (A) des lignes d'impression vers l'ouverture (36) de distribution, être reliée à celle-ci en étanchéité aux liquides,
    caractérisée en ce que le corps (24) creux est disposé sur le côté intérieur de la paroi (14) latérale du châssis d'imprimante, et sa diminution de volume s'obtient par un coulissement supplémentaire de la tête (12) d'impression à encre vers la paroi latérale, au-delà du point où l'ouverture (40) d'alimentation de la tête (12) d'impression à encre est reliée à l'ouverture (36) de distribution, tandis que son augmentation de volume s'obtient en faisant coulisser la tête (12) d'impression à encre en direction opposée alors que l'ouverture (40) d'alimentation est reliée à l'ouverture (36) de distribution.
  2. Agencement suivant la revendication 1, caractérisé en ce que la quantité d'encre distribuée par le dispositif (23) de remplissage d'encre à la tête (12) d'impression à encre est déterminée par l'ampleur du déplacement ou du coulissement supplémentaire.
  3. Agencement suivant la revendication 2, caractérisé en ce qu'on enregistre le nombre de points d'impression ou de caractères d'impression qui ont été imprimés depuis la mise en service de la tête (12) d'impression à encre dans l'imprimante (10) à encre, et ensuite depuis le dernier remplissage d'encre, et on commande l'instant et/ou la quantité d'encre d'un remplissage d'encre en fonction d'un nombre à prescrire de points ou caractères d'impression.
  4. Agencement suivant l'une des revendications 1 à 3, caractérisé en ce que la diminution suivie de l'augmentation de volume est effectuée en étant répétée plusieurs fois immédiatement consécutives.
  5. Agencement suivant l'une des revendications 1 à 4, caractérisé en ce que l'ouverture (36) de distribution est formée sur un raccord (34) tubulaire qui, lors du coulissement de la tête (12) d'impression à encre vers la paroi (14) latérale, pénètre dans l'ouverture (40) d'alimentation de la tête (12) d'impression à encre, et en ce qu'une soupape (38) sollicitée par ressort dans sa position de fermeture est incorporée dans le raccord (34), soupape qui s'ouvre lorsque la pression dans le corps creux dépasse, du fait de son augmentation de volume, une valeur prescrite.
  6. Agencement suivant l'une des revendications 1 à 5, caractérisé en ce que le corps creux de volume variable est un ballon compressible en matière plastique élastique.
  7. Agencement suivant l'une des revendications 1 à 5, caractérisé en ce que le corps creux de volume variable est un soufflet (24).
  8. Agencement suivant l'une des revendications 1 à 5, caractérisé en ce que le corps creux de volume variable est un ensemble cylindre-piston.
EP98931892A 1997-07-24 1998-04-09 Dispositif de remplissage avec de l'encre, pour une tete d'impression a encre, et tete d'impression a encre pouvant etre ainsi remplie Expired - Lifetime EP1019252B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19731959 1997-07-24
DE19731959A DE19731959A1 (de) 1997-07-24 1997-07-24 Tintenfülleinrichtung für einen Tintendruckkopf
PCT/DE1998/001027 WO1999004977A1 (fr) 1997-07-24 1998-04-09 Dispositif de remplissage avec de l'encre, pour une tete d'impression a encre, et tete d'impression a encre pouvant etre ainsi remplie

Publications (2)

Publication Number Publication Date
EP1019252A1 EP1019252A1 (fr) 2000-07-19
EP1019252B1 true EP1019252B1 (fr) 2001-10-04

Family

ID=7836826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98931892A Expired - Lifetime EP1019252B1 (fr) 1997-07-24 1998-04-09 Dispositif de remplissage avec de l'encre, pour une tete d'impression a encre, et tete d'impression a encre pouvant etre ainsi remplie

Country Status (6)

Country Link
US (1) US6199975B1 (fr)
EP (1) EP1019252B1 (fr)
JP (1) JP2001510751A (fr)
DE (2) DE19731959A1 (fr)
ES (1) ES2165686T3 (fr)
WO (2) WO1999004977A1 (fr)

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DE19941300A1 (de) * 1999-08-31 2001-03-01 Trespa Int Bv Heißverformbare Preßstoffplatte
JP2002370374A (ja) * 2001-06-18 2002-12-24 Canon Inc インクジェットプリント装置、プリントヘッドおよびインク供給方法
JP2002370375A (ja) * 2001-06-18 2002-12-24 Canon Inc インクジェットプリント装置、インクタンクおよびインク供給方法
US6948803B2 (en) * 2001-06-18 2005-09-27 Canon Kabushiki Kaisha Ink container, inkjet printing apparatus and ink supplying method
JP2003053996A (ja) * 2001-08-22 2003-02-26 Canon Inc インク供給機構および該インク供給機構を備えたインクジェット記録装置
JP2003246078A (ja) * 2002-02-25 2003-09-02 Canon Inc インク貯留容器並びに該容器を用いるインクジェットプリント装置およびインク供給方法
ITTO20020428A1 (it) * 2002-05-20 2003-11-20 Tecnost Sistemi S P A Stampante a getto di inchiostro con serbatoio ad alta capacita' e relativo sistema di rifornimento dell'inchiostro.
KR100411332B1 (en) * 2003-02-12 2003-12-24 Taeil Systems Co Ltd Automatic ink feeding device
JP4952093B2 (ja) * 2006-06-30 2012-06-13 ブラザー工業株式会社 インクジェット記録装置
JP2008012677A (ja) * 2006-06-30 2008-01-24 Brother Ind Ltd 画像記録装置
JP5114878B2 (ja) * 2006-06-30 2013-01-09 ブラザー工業株式会社 インクジェット記録装置
JP4935208B2 (ja) * 2006-07-01 2012-05-23 ブラザー工業株式会社 画像記録装置
JP7096660B2 (ja) * 2017-11-29 2022-07-06 理想科学工業株式会社 印刷装置およびインクジェットヘッドモジュール

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JPS588352B2 (ja) 1977-11-04 1983-02-15 株式会社リコー インクジエツト記録装置
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JPS58194561A (ja) 1982-05-11 1983-11-12 Canon Inc 記録装置
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US5199470B1 (en) 1991-05-17 1996-05-14 Graphic Utilities Inc Method and apparatus for refilling ink cartridges
JPH06191055A (ja) * 1992-12-25 1994-07-12 Canon Inc インクジェット記録装置のインク再充填装置
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Also Published As

Publication number Publication date
DE19731959A1 (de) 1999-02-04
JP2001510751A (ja) 2001-08-07
WO1999004977A1 (fr) 1999-02-04
DE59801663D1 (de) 2001-11-08
WO1999004975A3 (fr) 1999-04-22
WO1999004975A2 (fr) 1999-02-04
EP1019252A1 (fr) 2000-07-19
US6199975B1 (en) 2001-03-13
ES2165686T3 (es) 2002-03-16

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