EP0179452A2 - Procédé de fabrication de têtes d'impression pour mécanisme d'impression à encre - Google Patents

Procédé de fabrication de têtes d'impression pour mécanisme d'impression à encre Download PDF

Info

Publication number
EP0179452A2
EP0179452A2 EP85113417A EP85113417A EP0179452A2 EP 0179452 A2 EP0179452 A2 EP 0179452A2 EP 85113417 A EP85113417 A EP 85113417A EP 85113417 A EP85113417 A EP 85113417A EP 0179452 A2 EP0179452 A2 EP 0179452A2
Authority
EP
European Patent Office
Prior art keywords
photoplastic
films
ink
individual
masks
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
EP85113417A
Other languages
German (de)
English (en)
Other versions
EP0179452B1 (fr
EP0179452A3 (en
Inventor
Ferdinand Dr. Quella
Hans Ing. Grad. Hadersbeck
Ernst Dipl.-Ing. Goepel
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0179452A2 publication Critical patent/EP0179452A2/fr
Publication of EP0179452A3 publication Critical patent/EP0179452A3/de
Application granted granted Critical
Publication of EP0179452B1 publication Critical patent/EP0179452B1/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
    • B41J2/005—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
    • B41J2/16—Production of nozzles
    • B41J2/1621—Manufacturing processes
    • B41J2/1631—Manufacturing processes photolithography
    • 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
    • B41J2/16—Production of nozzles
    • B41J2/1607—Production of print heads with piezoelectric elements
    • B41J2/161—Production of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
    • 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 method for producing a printhead according to the preamble of patent claim 1.
  • a preassembled unit which consists of molding needles and the drive elements for droplet ejection and the contacting devices for the drive elements, is inserted and cast in an injection mold or casting mold. After removing the shaping needles, the ink channels are formed in the head part. This process requires a very precise pre-assembly, which must be carried out largely manually. In order to ensure a desired completely smooth surface inside the ink channels, the needles must be removed with great care.
  • the object of the invention is to provide a method for producing ink printheads which allows the ink channels to be designed in any three-dimensional shape. Furthermore, the method is intended to enable a low-effort and automatable production method.
  • the advantages associated with the method according to the invention consist essentially in an improvement in the formation of ink channels with regard to their fine structure.
  • the method opens up the possibility of low manufacturing costs, e.g. to also form ink channels with a changing cross section, that is to say, for example, to create an ink print head in which the ink channels taper in the direction of the outlet opening.
  • a thin plastic coating 2 is applied to a carrier 1, which essentially serves as a protective layer and as an adhesive between the carrier material and the ink contained in the interior of the ink print head (FIG. 1a).
  • the carrier 1 is made of metal or plastic, e.g. from a polybutylene compound.
  • a carrier which has a thickness of approximately 0.2 to 1 mm and an area of approximately 5 ⁇ 10 cm.
  • a layer in the form of a photoplastic film 3 is then applied to the carrier 1 in a first lamination process. This is covered with a mask 4 and irradiated with UV light.
  • the mask 4 has a translucent area 5 of a certain contour (FIG. 1 b).
  • chemically detachable film segments are formed in the areas 6 of the photoplastic film 3 determined by the area 5 of the mask 4 (FIG. Ic).
  • the free surface of the photoplastic film 3 is passivated, which e.g. by means of a light-absorbing dye solution or toner powder.
  • the passivation can also be restricted to a part of the free area by means of a suitable cover.
  • a second photoplastic film 7 is then applied to the first photoplastic film 3 treated in this way, covered with a mask 8 and exposed (FIG. 1d).
  • the mask 8 in turn has a translucent area 9 of a certain contour, through which a certain segment 10 of the photoplastic film 7 corresponding to this contour is exposed. In this way, an area is created in the second photoplastic film 7, namely the film segment 10, which can be removed by chemical treatment.
  • the area 9 of the mask 8 (FIG. 1 d) and thus also the film segment 10 (FIG. 1 e) is both in terms of its length and in terms of its width from the area 5 of the mask 4 (FIG.
  • the detachable film segments of the photoplastic films 3 and 7 are developed (Fig.1f). It is a known photolithographic process.
  • the described lamination, masking, exposure and passivation processes are then repeated several times, with development and thus exposure of the detachable film segments of the individual photoplastic films taking place after each or after several of these processes.
  • an ink channel of an ink print head constructed according to the described method is shown.
  • 2 shows the area 12 provided as an ink chamber, the ink channel 13 and the outlet opening 14.
  • the areas 12, 13 and 14 are filled with ink during the operation of an ink print head.
  • the ink print head works according to the so-called vacuum process. This means that what is shown here is the ink supply from an ink reservoir, which is arranged at a lower level than the outlet openings of the ink channels.
  • a pulse-controllable converter 15 which e.g.
  • the structure of the regions 1 2, 1 3 and 14 is formed by eight photoplastic films 18 to 25. Since photoplastic films are available in a thickness of approximately 10 0 to 50 p, an ink channel up to 400 p thick can be produced using 8 photoplastic films.
  • a writing head with a double row of ink channels can be produced by joining two writing head units.
  • the supply of the ink channels in the two print head units can be e.g. through an opening in the cover film.
  • the cover and the vacuum process ensure that the entire print head is sealed. If necessary, what is not shown in detail here, an additional one can be provided to cover the outlet openings, e.g. Prevents ink from spilling during transportation.
  • the edges of the write head can also be shaped in the manner described. This is particularly advantageous if the exit openings are very thin capillaries and / or if a write head with several rows of exit openings is created. This avoids the roughness associated with a simple cutting process in the area of the outlet openings.
  • the embodiment shown in FIGS. 2 and 3 is based on the use of eight photoplastic films, each with the same thickness.
  • the method according to the invention makes it easy to use a larger or a smaller number of photoplastic films than that provided in the exemplary embodiment.
  • the photoplastic films can also have individually different thicknesses. This and the use of appropriately designed masks make it possible to produce a very precise and very finely graduated three-dimensional structure of the ink channels and the outlet openings. The effort required for this is not significant since the method according to the invention enables a very high degree of automation. Since the method according to the invention can be used to build and form a large number of such structures in one operation on a carrier, the method is particularly suitable for the production of multi-nozzle writing heads. In this case, the precision with which the desired structures can be produced has a particularly advantageous effect.
  • 4 shows an exemplary embodiment. The part of a print head shown there is made up of eight photo-flat films 18 to 25, which are laminated in succession in the manner described.
  • the invention is not limited to the formation of the ink channels and the outlet openings of a write head. Rather, the ink chamber and the ink supply part with which the ink chamber is connected at the end opposite the outlet openings can also be formed.
  • the invention is also not limited to the fact that the photolithographic processes with which the exposed film segments are removed are carried out using the so-called positive technique, as has been described with reference to the exemplary embodiments. Rather, the so-called negative technique can be used with the same advantages. In this case, it is only necessary to use photoplastic films which form so-called cross-linked film segments on exposure, that is to say in which the exposed film segments become insoluble. With correspondingly designed masks, the method can also be carried out in the manner described in this case.
  • the ink chamber 12 and part of the ink channels 13 are produced in a manner known per se by the injection molding process. Only the parts of the ink channels 13 to which particularly high demands are made and the outlet openings 14 are produced in accordance with the method according to the invention.
  • photoplastic films in the example the photoplastic films 27 and 28 are applied to the molded plastic part 26 one after the other and treated in the manner described.
  • the arrangement is in turn covered at the top by the coated metal foil 16, 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
EP85113417A 1984-10-25 1985-10-22 Procédé de fabrication de têtes d'impression pour mécanisme d'impression à encre Expired EP0179452B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3439125 1984-10-25
DE3439125 1984-10-25

Publications (3)

Publication Number Publication Date
EP0179452A2 true EP0179452A2 (fr) 1986-04-30
EP0179452A3 EP0179452A3 (en) 1987-03-04
EP0179452B1 EP0179452B1 (fr) 1988-12-28

Family

ID=6248764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113417A Expired EP0179452B1 (fr) 1984-10-25 1985-10-22 Procédé de fabrication de têtes d'impression pour mécanisme d'impression à encre

Country Status (4)

Country Link
US (1) US4727012A (fr)
EP (1) EP0179452B1 (fr)
JP (1) JPS61106260A (fr)
DE (1) DE3566980D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0491560A3 (en) * 1990-12-19 1992-12-23 Canon Kabushiki Kaisha Liquid discharging recording head and method for producing same

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2781466B2 (ja) * 1990-12-19 1998-07-30 キヤノン株式会社 液体噴射記録ヘッド、その製造方法、及び液体噴射記録ヘッドを備えた記録装置
JPH0577423A (ja) * 1991-09-24 1993-03-30 Canon Inc インクジエツト記録ヘツド
US5255022A (en) * 1992-04-02 1993-10-19 Xerox Corporation Ink manifold having elastomer channel plate for ink jet printhead and process for making
JP2960608B2 (ja) * 1992-06-04 1999-10-12 キヤノン株式会社 液体噴射記録ヘッドの製造方法
US5980026A (en) * 1995-06-14 1999-11-09 Canon Kabushiki Kaisha Process for production of ink jet head
US5901425A (en) 1996-08-27 1999-05-11 Topaz Technologies Inc. Inkjet print head apparatus
US6644789B1 (en) 2000-07-06 2003-11-11 Lexmark International, Inc. Nozzle assembly for an ink jet printer
US6684504B2 (en) 2001-04-09 2004-02-03 Lexmark International, Inc. Method of manufacturing an imageable support matrix for printhead nozzle plates

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158847A (en) * 1975-09-09 1979-06-19 Siemens Aktiengesellschaft Piezoelectric operated printer head for ink-operated mosaic printer units
US4096626A (en) * 1976-12-27 1978-06-27 International Business Machines Corporation Method of making multi-layer photosensitive glass ceramic charge plate
JPS5658877A (en) * 1979-10-18 1981-05-22 Seiko Epson Corp Ink jet head
US4417251A (en) * 1980-03-06 1983-11-22 Canon Kabushiki Kaisha Ink jet head
JPS56150561A (en) * 1980-04-25 1981-11-21 Oki Electric Ind Co Ltd Manufacture of fluid injection nozzle
JPS5787956A (en) * 1980-11-21 1982-06-01 Fujitsu Ltd Ink jet heat and manufacture thereof
JPS5793162A (en) * 1980-12-03 1982-06-10 Fujitsu Ltd Manufacture of ink jet head
AT372651B (de) * 1980-12-15 1983-11-10 Philips Nv Tintenstrahlschreibkopf und verfahren zur herstellung eines solchen tintenstrahlschreibkopfes
JPS57102366A (en) * 1980-12-18 1982-06-25 Canon Inc Ink jet head
JPS57105359A (en) * 1980-12-24 1982-06-30 Fujitsu Ltd Ink jetting print head
JPS57208252A (en) * 1981-06-19 1982-12-21 Canon Inc Preparation of ink jet head
DE3104077A1 (de) * 1981-02-06 1982-09-09 Philips Patentverwaltung Gmbh, 2000 Hamburg "schreibkopf fuer tintenstrahldrucker"
US4392145A (en) * 1981-03-02 1983-07-05 Exxon Research And Engineering Co. Multi-layer ink jet apparatus
US4450455A (en) * 1981-06-18 1984-05-22 Canon Kabushiki Kaisha Ink jet head
US4437100A (en) * 1981-06-18 1984-03-13 Canon Kabushiki Kaisha Ink-jet head and method for production thereof
JPS5869068A (ja) * 1981-10-20 1983-04-25 Ricoh Co Ltd インクジエツト記録装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0491560A3 (en) * 1990-12-19 1992-12-23 Canon Kabushiki Kaisha Liquid discharging recording head and method for producing same
US5331344A (en) * 1990-12-19 1994-07-19 Canon Kabushiki Kaisha Method for producing liquid-discharging recording head, liquid-discharging recording head produced by said method, and recording apparatus utilizing said recording head

Also Published As

Publication number Publication date
DE3566980D1 (en) 1989-02-02
EP0179452B1 (fr) 1988-12-28
JPS61106260A (ja) 1986-05-24
EP0179452A3 (en) 1987-03-04
US4727012A (en) 1988-02-23

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