EP0131704A1 - Dispositif d'enregistrement à gouttelettes de liquide - Google Patents

Dispositif d'enregistrement à gouttelettes de liquide Download PDF

Info

Publication number
EP0131704A1
EP0131704A1 EP84105201A EP84105201A EP0131704A1 EP 0131704 A1 EP0131704 A1 EP 0131704A1 EP 84105201 A EP84105201 A EP 84105201A EP 84105201 A EP84105201 A EP 84105201A EP 0131704 A1 EP0131704 A1 EP 0131704A1
Authority
EP
European Patent Office
Prior art keywords
transducers
carrier plate
transducer
liquid droplets
writing
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.)
Granted
Application number
EP84105201A
Other languages
German (de)
English (en)
Other versions
EP0131704B1 (fr
Inventor
Nilsson Dipl.-Ing. Kenth
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 EP0131704A1 publication Critical patent/EP0131704A1/fr
Application granted granted Critical
Publication of EP0131704B1 publication Critical patent/EP0131704B1/fr
Expired 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
    • B41J2/135—Nozzles
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2/14201—Structure of print heads with piezoelectric elements
    • B41J2/14282—Structure of print heads with piezoelectric elements of cantilever type
    • 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
    • B41J2/14—Structure thereof only for on-demand ink jet heads
    • B41J2002/14379—Edge shooter

Definitions

  • the invention relates to a writing instrument working with liquid droplets for the point-by-point recording of analog courses or alphanumeric characters as well as images on a recording medium, with rod-shaped piezoelectric transducers arranged in rows, clamped at one end and contacted in such a way that they are generated by electrical ones Bend voltage changes at the contact perpendicular to the plane spanned by the transducers.
  • Such a writing instrument is known from DE-PS 25 27 647.
  • the writing instrument has a carrier which is attached between the recording medium and transducer and which has a number of nozzles arranged next to one another in a row. Each nozzle lies in the area of the greatest vibration amplitude and in the direction of the deflection of the transducers.
  • several of these converters must be arranged one behind the other in the paper transport direction. Because of the length of the transducers, the locations for the different color droplets are considerably distant from one another, so that an incorrect shift between the individual color dots can easily occur due to incorrect paper transport. If two or more converters are used to increase the resolution, this can lead to image deterioration.
  • the transducers are perpendicular to the recording medium, the nozzles being arranged in the direct axis extension of the transducers.
  • the transducers in particular in the case of small dimensions, not only lengthen in a straight line when electrical voltage changes occur at their contacts, but also bend. This can cause malfunctions when ejecting liquid droplets from the nozzles.
  • the invention has for its object to provide a writing instrument of the type mentioned, which is relatively simple in construction and in which a tight attachment of several transducers in a row is possible.
  • a plate is arranged parallel to the transducers at such a distance that when the transducers snap back in their starting position, writing liquid is expelled between the transducer and the plate, for example in the direction of the rod.
  • These converters can do without additional nozzles, which considerably simplifies the recorder. This may result in larger liquid droplets, which can sometimes be useful when writing characters.
  • the carrier plate have grooves which run below and parallel to the respective transducer. This improves the shape and orientation of the ejected liquid droplets. It is also possible that the side of each transducer facing the carrier plate has a groove running in its longitudinal direction. Compared to the grooves in the carrier plate, there is the advantage that the converter and carrier plate no longer have to be aligned with one another so precisely.
  • a nozzle plate is attached between the transducer with plate and recording medium, each nozzle being arranged in the axis extension of the intermediate space between the corresponding transducer and the carrier plate.
  • the grooves can be omitted. Due to the construction of the transducer according to the invention, liquid can now be expelled through the nozzles. At the same time it is achieved that all liquid droplets have the same, defined size.
  • the transducers be arranged on both sides of the carrier. The result of this is that the transducers can be attached extremely close to one another.
  • the connecting line 8 is guided, which is provided at its free end with a plug 9 for connection to a control device, not shown, which supplies the control signals for recording the desired courses, characters or images.
  • FIG. 1 shows how rod-shaped piezoelectric transducers 10 are arranged perpendicular to the recording medium 3 in the housing 7.
  • the comb back 11 common to all transducers 10 is fastened with a fastening arrangement 12 to a carrier plate 13 fixedly arranged in the housing 7.
  • the transducers are bilaminar and are formed from a piezoceramic layer 14 and a metal layer 15.
  • Writing liquid is provided between the carrier plate 13 and the transducers 10. When electrical voltage is applied to a contact, not shown, of a converter 10, this moves into the ge dashed position.
  • transducer 10 When a transducer 10 is short-circuited, it snaps back into the non-bent position drawn with solid lines and in doing so presses a droplet of writing fluid forward onto the recording medium 3 in the direction of the transducer axis.
  • This embodiment of transducer 10 with carrier plate 13 is preferably used when larger liquid droplets are desired.
  • the carrier plate 13 has grooves 16 which run below and parallel to the respective transducer 10.
  • the grooves 16 are clearly visible in FIG. 3.
  • the transducers can be attached closely to a carrier plate provided with grooves 16, so that a unit which is compact in construction is obtained.
  • the grooves enable a very good resolution and an equally good alignment of the individual ink outputs.
  • FIG. 5 shows in a further exemplary embodiment that a nozzle plate 17 is attached between transducer 10 with carrier plate 13 and recording medium 3, each nozzle 18 being arranged in the axis extension of the intermediate space between transducer 10 and carrier plate 13.
  • the grooves 16 can be omitted.
  • a predetermined exact shaping and alignment of the liquid droplets can be obtained through the nozzles 18.
  • transducers 10 are arranged on both sides of the carrier plate 13.
  • the transducers 10 can hereby be attached extremely close together.
  • the nozzle plate 17 is not absolutely necessary. Instead, the carrier plates can be provided with grooves 16 (FIGS. 1 to 4). It is also possible to dispense with both nozzle plate 17 and grooves 16.

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Recording Measured Values (AREA)
EP84105201A 1983-05-10 1984-05-08 Dispositif d'enregistrement à gouttelettes de liquide Expired EP0131704B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3317082 1983-05-10
DE19833317082 DE3317082A1 (de) 1983-05-10 1983-05-10 Mit fluessigkeitstroepfchen arbeitendes schreibgeraet

Publications (2)

Publication Number Publication Date
EP0131704A1 true EP0131704A1 (fr) 1985-01-23
EP0131704B1 EP0131704B1 (fr) 1988-09-14

Family

ID=6198655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105201A Expired EP0131704B1 (fr) 1983-05-10 1984-05-08 Dispositif d'enregistrement à gouttelettes de liquide

Country Status (4)

Country Link
US (1) US4566018A (fr)
EP (1) EP0131704B1 (fr)
JP (1) JPS59212275A (fr)
DE (2) DE3317082A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336043A2 (fr) * 1988-04-06 1989-10-11 Seiko Epson Corporation Imprimante à jet d'encre

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887100A (en) * 1987-01-10 1989-12-12 Am International, Inc. Droplet deposition apparatus
EP0678384B1 (fr) * 1990-02-23 1997-08-20 Seiko Epson Corporation Tête d'impression à jet d'encre générant des gouttelettes à la demande
JP3041952B2 (ja) * 1990-02-23 2000-05-15 セイコーエプソン株式会社 インクジェット式記録ヘッド、圧電振動体、及びこれらの製造方法
US6186619B1 (en) * 1990-02-23 2001-02-13 Seiko Epson Corporation Drop-on-demand ink-jet printing head
US5465108A (en) * 1991-06-21 1995-11-07 Rohm Co., Ltd. Ink jet print head and ink jet printer
JPH0596739A (ja) * 1991-10-09 1993-04-20 Rohm Co Ltd インクジエツトプリントヘツドの製造方法
IT1268101B1 (it) * 1993-10-07 1997-02-20 Seiko Epson Corp Azionatore piezoelettrico per una testa di registrazione, e procedimento per la sua fabbricazione.
DE19626428A1 (de) * 1996-07-01 1998-01-15 Heinzl Joachim Tröpfchenwolkenerzeuger
DE10139397B4 (de) 2001-08-10 2005-12-22 Tallygenicom Computerdrucker Gmbh Tropfenerzeuger für Mikrotropfen, insbesondere Düsenkopf für Tintendrucker

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2314832A1 (fr) * 1975-06-20 1977-01-14 Siemens Ag Appareil enregistreur fonctionnant par projection de gouttelettes de liquide
US4158847A (en) * 1975-09-09 1979-06-19 Siemens Aktiengesellschaft Piezoelectric operated printer head for ink-operated mosaic printer units
GB2050949A (en) * 1979-06-01 1981-01-14 Xerox Corp Pulsed liquid droplet ejecting apparatus
US4251823A (en) * 1978-09-01 1981-02-17 Hitachi, Ltd. Ink jet recording apparatus
EP0067889A1 (fr) * 1980-12-30 1982-12-29 Fujitsu Limited Tete imprimante a jet d'encre
EP0072685A1 (fr) * 1981-08-14 1983-02-23 William Anthony Denne Générateur de gouttelettes pour imprimante à jet d'encre

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114192A1 (de) * 1981-04-08 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Mit fluessigkeitstroepfchen arbeitendes schreibgeraet
DE3114224A1 (de) * 1981-04-08 1982-11-04 Siemens AG, 1000 Berlin und 8000 München Mit fluessigkeitstroepfchen arbeitendes schreibgeraet
US4453169A (en) * 1982-04-07 1984-06-05 Exxon Research And Engineering Co. Ink jet apparatus and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2314832A1 (fr) * 1975-06-20 1977-01-14 Siemens Ag Appareil enregistreur fonctionnant par projection de gouttelettes de liquide
US4158847A (en) * 1975-09-09 1979-06-19 Siemens Aktiengesellschaft Piezoelectric operated printer head for ink-operated mosaic printer units
US4251823A (en) * 1978-09-01 1981-02-17 Hitachi, Ltd. Ink jet recording apparatus
GB2050949A (en) * 1979-06-01 1981-01-14 Xerox Corp Pulsed liquid droplet ejecting apparatus
EP0067889A1 (fr) * 1980-12-30 1982-12-29 Fujitsu Limited Tete imprimante a jet d'encre
EP0072685A1 (fr) * 1981-08-14 1983-02-23 William Anthony Denne Générateur de gouttelettes pour imprimante à jet d'encre

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336043A2 (fr) * 1988-04-06 1989-10-11 Seiko Epson Corporation Imprimante à jet d'encre
EP0336043A3 (en) * 1988-04-06 1990-05-23 Seiko Epson Corporation Ink jet printing apparatus
US4998120A (en) * 1988-04-06 1991-03-05 Seiko Epson Corporation Hot melt ink jet printing apparatus
US5105209A (en) * 1988-04-06 1992-04-14 Seiko Epson Corporation Hot melt ink jet printing apparatus

Also Published As

Publication number Publication date
US4566018A (en) 1986-01-21
EP0131704B1 (fr) 1988-09-14
DE3317082A1 (de) 1984-11-15
DE3474008D1 (en) 1988-10-20
JPS59212275A (ja) 1984-12-01
JPH0436070B2 (fr) 1992-06-15

Similar Documents

Publication Publication Date Title
DE69006544T3 (de) Kopf für Tintenstrahldrucker.
DE2532037C2 (de) Tintentröpfchen-Aufzeichnungsvorrichtung
DE69429021T2 (de) Tintenstrahlaufzeichnungskopf
DE3248087A1 (de) Fluessigkeitsstrahlkopf
DE2344453A1 (de) Tintenstrahlmatrixdrucker
DE3311956A1 (de) Farbstrahl-druckerkopf
DE69402850T2 (de) Einseitiges antriebssystem verbindbar mit tintenstrahldruckkopf und dessen herstellungsverfahren
EP0713773A2 (fr) Générateur de micro-gouttelettes en particulier pour imprimante à jet d'encre
EP0121894B1 (fr) Tête d'écriture commandée par piézo-électricité pour dispositifs d'écriture à mosaique d'encre
EP0119489A2 (fr) Appareil à écrire fonctionnant avec des gouttelettes de liquide
EP0131704B1 (fr) Dispositif d'enregistrement à gouttelettes de liquide
DE3414527C2 (de) Flüssigkeitsstrahlaufzeichnungskopf
EP0062889B1 (fr) Dispositif d'enregistrement à gouttelettes de liquide
DE3308353C2 (de) Farbausstoßkopf für einen Farbstrahldrucker
EP0062888B1 (fr) Dispositif d'enregistrement à gouttelettes de liquide
DE4443244C2 (de) Anordnung für einen Tintendruckkopf aus einzelnen Tintendruckmodulen
EP0063637A2 (fr) Tête d'enregistrement pour imprimante à jet d'encre avec conduites d'encre cylindriques
DE3201102A1 (de) "farbstrahl-aufzeichnungseinrichtung"
EP0062353B1 (fr) Dispositif d'enregistrement à gouttelettes de liquide
DE69515227T2 (de) Tintenstrahlaufzeichnungskopf und dessen Herstellungsverfahren
DE69818121T2 (de) Tintenstrahldruckkopf
DE69207532T2 (de) Tintentröpfchenausstossgerät
EP0142150B1 (fr) Procédé et transducteur destinés à augmenter la résolution dans un dispositif d'écriture à mosaique à encre
EP0057956A2 (fr) Tête à écrire pour une imprimante à jet d'encre
DE3222133A1 (de) Schreibkopf fuer einen tintenstrahlschreiber

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

AK Designated contracting states

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19850705

17Q First examination report despatched

Effective date: 19860522

D17Q First examination report despatched (deleted)
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3474008

Country of ref document: DE

Date of ref document: 19881020

ET Fr: translation filed
ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920424

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19920521

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19920531

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920724

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19931201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930508

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST