WO1993025390A1 - Ink jet head and method of manufacturing ink jet head - Google Patents
Ink jet head and method of manufacturing ink jet head Download PDFInfo
- Publication number
- WO1993025390A1 WO1993025390A1 PCT/JP1993/000788 JP9300788W WO9325390A1 WO 1993025390 A1 WO1993025390 A1 WO 1993025390A1 JP 9300788 W JP9300788 W JP 9300788W WO 9325390 A1 WO9325390 A1 WO 9325390A1
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- WIPO (PCT)
- Prior art keywords
- ink
- ink jet
- jet head
- thin film
- head according
- Prior art date
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- 229910052759 nickel Inorganic materials 0.000 claims description 8
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- 229920002492 poly(sulfone) Polymers 0.000 description 2
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- 239000011651 chromium Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- IUYOGGFTLHZHEG-UHFFFAOYSA-N copper titanium Chemical compound [Ti].[Cu] IUYOGGFTLHZHEG-UHFFFAOYSA-N 0.000 description 1
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- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
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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
- B41J2/1612—Production of print heads with piezoelectric elements of stacked structure type, deformed by compression/extension 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
- B41J2/16—Production of nozzles
- B41J2/1621—Manufacturing processes
- B41J2/1623—Manufacturing processes bonding and adhesion
-
- 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
- B41J2/1626—Manufacturing processes etching
- B41J2/1628—Manufacturing processes etching dry etching
-
- 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
- B41J2/1626—Manufacturing processes etching
- B41J2/1629—Manufacturing processes etching wet etching
-
- 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
- B41J2/164—Manufacturing processes thin film formation
- B41J2/1642—Manufacturing processes thin film formation thin film formation by CVD [chemical vapor deposition]
-
- 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
- B41J2/164—Manufacturing processes thin film formation
- B41J2/1643—Manufacturing processes thin film formation thin film formation by plating
-
- 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
- B41J2/164—Manufacturing processes thin film formation
- B41J2/1646—Manufacturing processes thin film formation thin film formation by sputtering
-
- 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
- B41J2002/14387—Front shooter
Definitions
- the present invention relates to a recording head of an on-demand type ink jet recording apparatus that forms an ink image on a recording medium such as recording paper by discharging ink droplets in response to a print signal, and a method of manufacturing the recording head. More specifically, the present invention relates to a configuration of a vibrating membrane that forms one wall surface of an ink chamber for discharging ink droplets and transmits vibration from a piezoelectric transducer to the ink chamber.
- the first type is a so-called bubble jet type, in which a heater that instantaneously vaporizes the ink is provided at the nozzle tip, and ink droplets are generated and fly by the expansion pressure during the vaporization of the ink.
- a part of the ink chamber that forms the ink reservoir is composed of a piezoelectric transducer that deforms with a print signal, and the ink is ejected as droplets by the pressure in the ink chamber caused by the deformation of the piezoelectric transducer. It is.
- a vibrating membrane which is referred to as a diaphragm in the above-mentioned publication
- the piezoelectric transducer presses the legs and deforms the vibrating membrane, causing the ink in the ink chamber to fly as droplets from the nozzle opening due to the expansion and contraction of the piezoelectric transducer. It is configured to be.
- the thickness is about 1 to 10 tzm, and metals such as nickel, stainless steel, iron, copper, silver, gold, tantalum, and titanium are used.
- a method is disclosed in which island-like protrusions 61b are formed on a vibrating membrane 61a made of an electrode by an electro-deposition method, and the island-like protrusions 61b and the piezoelectric transducer 60 are in contact with each other.
- island-like projections 6 on which a material and its method are not specified are formed on a vibrating membrane 61 a made of an organic material film having a thickness of 50 ⁇ m.
- a method is disclosed in which the lb is fixed and the island-shaped protrusion 6 lb abuts on the piezoelectric transducer 60.
- Japanese Patent Application Laid-Open No. 3-190704 describes that, as shown in FIG. 11, as shown in FIG. 11, a layer of about 100 m is formed on the electrode 7 la of the piezoelectric transducer 70. Form and perform dicing. The piezoelectric transducer 70 is divided by dicing and processed into dummy layer island projections 73b. Further, a method is disclosed in which a vibrating membrane 73a (referred to as a cover plate member in the same publication) having a thickness of approximately 50 m is fixed to the island-like projection 73b with an epoxy-based adhesive. .
- a vibrating membrane 73a referred to as a cover plate member in the same publication
- silicon-metal foil is used for the vibrating membrane, it will be vulnerable to repeated bending deformation, causing fatigue failure. Therefore, it is not suitable for a displacement transmitting member for an ink jet printer that repeats deformation several hundred million times at high speed. Furthermore, since these materials have a very high rigidity, they are not suitable for the material of the diaphragm that requires as much flexibility as possible.
- an object of the present invention is to solve these problems and realize a highly efficient and reliable ink jet head configuration, and a vibrating membrane with projections that can easily mass-produce the configuration.
- the purpose is to produce ink jet heads at low cost. Disclosure of the invention
- the ink jet head according to the present invention is an ink jet head that displaces a diaphragm that constitutes a part of an ink chamber by a piezoelectric transducer, increases the pressure of ink in the ink chamber, and ejects ink droplets ′ from a nozzle opening.
- the diaphragm is composed of a polymer resin thin film and a rigid projection directly adhered to the polymer resin thin film.
- FIG. 1 is a perspective view showing a configuration of an ink jet head to which an embodiment of the present invention is applied.
- FIG. 2 is a partial cross-sectional view of an ink jet head to which an embodiment of the present invention is applied.
- FIG. 3 is a diagram showing the operation of the ink jet head of the present invention.
- FIG. 4 is a cross-sectional view showing a pressure generating means of the ink jet head to which the embodiment of the present invention is applied.
- FIG. 5 is a partial perspective view of a main part of an ink jet head to which an embodiment of the present invention is applied, viewed from below.
- FIG. 6 is a manufacturing process diagram showing one embodiment of the present invention.
- FIG. 7 is a diagram showing an embodiment of a method of manufacturing an inkjet head according to the present invention.
- FIG. 8 is a perspective view of an essential part showing an example of an ink jet head of the method of the present invention.
- FIG. 9 is a manufacturing process diagram showing another embodiment of the ink jet head of the present invention.
- FIG. 10 is a diagram showing a conventional technique.
- FIG. 11 is a diagram showing a conventional technique. BEST MODE FOR CARRYING OUT THE INVENTION
- two or more nozzles are arranged at a resolution of 180 dpi in order to realize a printer with a resolution of 360 dpi (dot / inch).
- FIG. 1 is an exploded perspective view showing an example of an ink jet head to which the present embodiment is applied.
- mounting holes 11 penetrating through the inside of the head frame 10 support a base member 5 described later in order to position the piezoelectric transducer 1 in the X-axis and Y-axis directions. are doing.
- the front end face of the piezoelectric transducer 1 in the longitudinal direction includes a vibrating membrane 20 (hereinafter referred to as an “oscillating membrane 20 with an island”), which is a vibrating plate with projections, a flow path substrate 12, and a nozzle opening 1 3
- a vibrating membrane 20 with an island which is a vibrating plate with projections
- a flow path substrate 12 and a nozzle opening 1 3
- the bonded body laminated in the order of the plate-shaped nozzle substrate 13 formed with a is bonded to the island-shaped projection 2 Ob, which is the rigid projection of the vibration film with island 20, in the Z-axis direction. Getting the positioning.
- FIG. 2 is a partial cross-sectional view of an inkjet head to which the present embodiment is applied.
- the ink chamber 22 includes a plate-shaped nozzle substrate 13 having a nozzle opening 13 a formed therein, a flow path substrate 12, and a vibration film 20 which is a polymer resin thin film of the vibration film 20 with islands. a and three members.
- the ink reservoir (not shown), the ink supply pipe 14, the ink communication port 16, and the ink chamber 22 are in communication with each other, and the ink 6 is supplied from the ink reservoir ( See Figure 1).
- 23 is a thick part formed simultaneously with the protruding part 20b.
- the piezoelectric transducer 1 is fixed to the head frame 10 via the base 5 with an adhesive 90. In such a configuration, the principle of ejecting ink droplets is as shown in FIG. Piezoelectric transformation
- the drive wiring for driving the heat exchanger 1 is not shown in FIG. 3, but as shown in FIG. 2, the first wiring board 30a, the second wiring board 30b, the base electrode 5a, An operation signal is input through the first converter electrode 4a and the second converter electrode 14b.
- the piezoelectric transducer 1 is in a standby state in the state shown in FIG. 3A, but when a voltage is applied to the piezoelectric transducer 1 as shown in FIG. 3B, the vibrating membrane 20a and the island protrusions 20 While contracting the island vibration film 20 composed of b, it contracts in the direction perpendicular to the nozzle substrate 13 (Z-axis direction).
- this electric field is released, the elastic restoring force of the piezoelectric transducer 1 and the vibrating membrane 20 increases the pressure of the ink 6 in the ink flow path 22 as shown in FIG.
- the ink droplet 6a is ejected from a, and the piezoelectric converter 1 returns to the standby state again.
- the vibrating membrane with islands 20 causes more ink droplets 6 a (that is, the weight or volume of the ejected ink droplets 6 a to be large) with respect to the pressing force generated by the piezoelectric transducer 1. Discharge is the main function.
- the diaphragm 20a is as flexible as possible
- the island-shaped projections 20 b are as rigid as possible
- the size of the island protrusions 20b cannot be easily enlarged because the size of the inkjet head is restricted by the miniaturization and high density of the ink jet. Also, in order to prevent mutual interference with the adjacent ink flow paths 22, it is necessary to increase the area of the vibrating membrane 20 a to a certain value or more, and this also easily expands the island-shaped protrusions 2 Ob. This is one of the reasons why it is impossible.
- the formation of the rigid projections 20b with high rigidity and thick in the direction of displacement in (3) is a means for effectively increasing the volume or weight of the ink droplet 6a. .
- FIG. 4 is a perspective view of an ejection head generating means for an ink jet head to which the present embodiment is applied.
- the pressure generating means for ejecting the ink 6 as droplets is the piezoelectric transducer 1, and the piezoelectric body 2 and the conductive materials 3a and 3b (hereinafter referred to as internal electrodes 3a and 3b) It is a multilayer structure that is stacked alternately. Further, the piezoelectric transducer 1 is formed with conductive materials 4a and 4b (hereinafter, referred to as external electrodes 4a and 4b). The external electrode 4a is connected to the internal electrode 3a, and the external electrode 4b is connected to the external electrode 4b. Each is electrically connected to the internal electrode 3b. In addition, approximately half of the piezoelectric transducer 1 in the longitudinal direction is joined to the base member 5, and the other half, which is not joined, is joined to the island-like projection 20b of the vibrating membrane 20 with islands as described above. (See Figure 2).
- the dimensions of the piezoelectric transducers are set such that the width of each piezoelectric transducer in the arrangement direction is 80 ⁇ m, the arrangement pitch of each piezoelectric transducer in the arrangement direction is about 141 fxm, and the thickness in the stacking direction.
- the thickness was about 0.5 mni, the stacking pitch in the stacking direction, that is, the distance between the internal electrodes was about 20 / zm, and the stacking length in the longitudinal direction was about 5 mm.
- FIG. 5 is a partial perspective view of a main part of an ink jet head to which one embodiment of the present invention is applied, viewed from below.
- Each dimension is 1.5 mm for the length of the ink chamber 22 (11 in Fig. 2), 180 m for the height of the ink chamber 22 (hi in Fig. 2), and 180 m for the width of the ink chamber 22.
- the thickness of the vibrating membrane 20a is 4 m
- the length of the projection 2 Ob (1 in FIG. 2) is 1.3 mm.
- O 9325390 PT 300788 The height (h 2 in FIG. 2) of the projection 2 O b was 40 m
- the width (w 2 in FIG. 5) of the projection 2 O b was 30 / m.
- 6A to 6I show an example of the first manufacturing process of the present invention.
- a thin plate 50 made of metal or ceramics having a thickness of 0.01 to 1 mm is prepared.
- the material is preferably copper, nickel, iron, stainless steel, silicon, or the like because of the ease of processing described later (Fig. 6A).
- a polymer resin 20a is formed on substantially the entire surface of any one of the thin plates 50 in a thickness of any of 1 to 25 Aim (FIG. 6B).
- the film is formed by vacuum deposition such as vapor deposition, immersion, roll coating, spraying, or casting.
- the polymer resin 20a may be made of polyimide (PI) resin, polyether imide (PEI) resin, polyamide imide (PAI) resin, polyparabanic acid (PPA) resin, polysulfone (PSF) resin.
- Polyethersulfone (PES) resin Polyethersulfone (PEK) resin, polyetherketone (PEEEK) resin, polyphenylenesulfide (PPS) resin, polyolefin (APO) resin, polyethylene phthalene Resin (PEN) resin, alkamide resin and the like.
- PES polyethersulfone
- PEK polyetherketone
- PEEK polyetheretherketone
- PPS polyphenylenesulfide
- APO polyolefin
- PEN polyethylene phthalene Resin
- alkamide resin alkamide resin
- the polymer resin 20a is the above-described vibration film 20a, and exhibits resistance to an etchant or a resist removing solution in an etching process described later, resistance to the ink 6 component, and the resin itself.
- Polyimide resin is preferred in consideration of adhesiveness and flexibility as a vibrating film.
- a photo resist 51 is formed on the other surface of the thin plate 50 on which the polymer resin 20a is not formed (FIG. 6C).
- the formed photo resist 51 is irradiated with ultraviolet rays 53.
- the photoresist 51 is selectively exposed (FIGS. 6D and 6E).
- the exposed photoresist 51 is developed to leave an exposed portion 51a (FIG. 6F).
- the thin plate 50 is selectively chemically etched by the photoresist 51a. You. The remaining portion of the thin plate 50 is formed as an island-shaped protrusion 20b (FIG. 6G).
- an inorganic thin film 21 made of metal or ceramics is formed on substantially the entire surface of one of the vibrating films 20 with islands.
- the inorganic thin film 21 may be formed on any surface of the vibration film with islands 20.
- the first purpose of forming the inorganic thin film 21 is to prevent the deterioration of the vibration characteristics of the piezoelectric transducer due to the transmission of the ink composition
- the second purpose is to prevent the vibration film from being exposed to the ink 6. It is preferable to form the inorganic thin film 21 on the other surface of the vibrating film 20a where the island-like protrusions 20b are not formed because the deterioration of 20a and the dimensional change are prevented. .
- the thickness of the inorganic thin film 21 is preferably from 0.1 to 2 m so as not to impair the function of shielding the ink and not to impair the vibration characteristics of the piezoelectric transducer 1 (FIG. 6I). .
- the inorganic thin film 21 is not necessarily essential for achieving the object of the present invention, and the swelling of the vibrating film 20a is limited to a range where there is no problem in practical use by selecting and optimizing the ink to be used. Can also.
- the resin film is cured in a state where internal stress is applied in the coating surface direction, so that when the vibration film with islands 20 is completed, the resin film 2 1 can be formed as if it were stretched under tension. In this way, even if swelling due to a slight amount of ink occurs, no excessive slack occurs in the resin film 20a.
- FIGS. 7A to 7F show the manufacturing steps of the second embodiment of the present invention.
- a plate 40 is prepared as shown in FIG. 7A.
- the plate member 40 becomes the first island-shaped protrusion 16a by a process described later.
- a precursor of a polymer resin is pressed all over one surface of the plate member 40, and a film is formed on the vibration film 20a by a reaction such as heat or light.
- a photosensitive resist 41 is formed on the other surface of the plate material 40, and is patterned into a desired shape by exposure and development.
- a metal to be the second island-like projection 16b is deposited on the window portion 42 of the plate material 40 on which the photosensitive resist 41 has been patterned.
- the photosensitive resist 41 is removed.
- the photosensitive resist 41 is removed, and the window 43 where the plate material 40 is exposed is removed by means of chemical etching or the like, and a first layer is formed below the second island-shaped protrusion 16b.
- the island-like projections 16a are formed.
- FIG. 8 is a perspective view of a main part of an ink jet head manufactured by the method of the present invention, showing an example of the vibrating membrane 20 with islands formed by the manufacturing process of the present embodiment.
- the vibration film 20a is made of polyimide having a thickness of 0.005 mm, the formation density X of the island-shaped projections 20b is set to 0.114, which corresponds to 180 dpi, and the width xl of the island-shaped projections 20b is set to xl. 0.03 mm.
- the length y was set to 1.7 mm.
- the first island-shaped protrusion 16a having a thickness of z1 and the second island-shaped protrusion 16b having a thickness of z2 are combined with a 0.05 mm beryllium copper foil, Manufactured from nickel with an electrode of 0.05 mm, the use of an essentially rigid material and a sufficient thickness made it possible to realize an island-shaped projection 20b with little deformation and high displacement transmission efficiency.
- 9A to 9H show the manufacturing process of the third embodiment of the present invention.
- a plate 9 is prepared as shown in FIG. 9A.
- a highly corrosive material such as copper, beryllium copper, titanium copper, phosphor bronze, iron, and iron-nickel alloy will be described as a preferred example.
- a first inorganic thin film 121 is formed on at least one surface of the plate material 9.
- Means of formation include vacuum film forming methods such as sputtering, vapor deposition, and CVD (chemical vapor deposition), immersion method using inorganic thin film 121 in solution, roll coating method, spray method, and deposition of inorganic thin film 121.
- a metal plating method or the like is suitable for the first inorganic thin film 121 because a metal or a ceramic having a high sealing property is suitable for the first inorganic thin film 121.
- nickel first inorganic thin film 122
- Gold, chrome, palladium, platinum other than 200 And the like are preferred.
- the thickness of the first inorganic thin film 12 1 is set to 0 in order to secure the dimensional accuracy of the island-shaped protrusions 20 b by etching, and to reliably seal the plate 9 with the second inorganic thin film 122. 0.001 to 0.02 mm is preferred.
- the elastic film 20a is formed on one of the surfaces on which the first inorganic thin film 121 is formed.
- the elastic film 20a has a characteristic opposite to that of the island-shaped protrusion 20b, and is as thin and flexible as possible in order to efficiently transmit the pressing force of the piezoelectric transducer 1.
- polyimide was used in this example as in the previous example.
- a photosensitive resist 9 a is formed on the other surface of the plate material 9, and is patterned into a desired shape by exposure and development.
- the density of the photosensitive resist 9a is set at 0.141 mm, which is 180 dpi.
- the plate material 9 is selectively removed by means such as chemical etching, and then the first inorganic thin film 122 is selectively removed substantially equally by chemical etching, plasma or ion etching. I do.
- a second inorganic thin film 122 is formed on the surface of the island-shaped projections 20b, and the island-shaped projections 20b are sealed from all directions.
- an electroless plating method that can be selectively formed only on the island-shaped protrusion 2Ob is optimal.
- the same nickel as the first inorganic thin film was used as the second inorganic thin film 122.
- nickel, gold, chromium, palladium, platinum and the like are suitable.
- the thickness of the second inorganic thin film 122 is preferably at least 0.001 mm, and most preferably at least 0.02 mm.
- the vibration film with islands 20 is formed.
- the corrosion resistance of the island-like projections 20b is ensured, and the long-term reliability of the ink jet can be secured.
- a highly corrosive copper-based material that is highly rigid and easily micro-processed to satisfy ink ejection performance can be used as the island-shaped protrusions 20b, so that both reliability and ink ejection performance can be achieved. Let it be And it became possible.
- the discharged ink droplet 6a increases by 15% by weight or more as compared with the conventional example, and a high pressing force is transmitted. Efficiency was obtained.
- the ink ejection characteristics can be improved by a structure in which the island-shaped vibrating film is formed by directly fixing the high-rigidity thick island-shaped protrusions to the very thin vibrating film made of a polymer resin.
- the ink ejection characteristics can be improved by a structure in which the island-shaped vibrating film is formed by directly fixing the high-rigidity thick island-shaped protrusions to the very thin vibrating film made of a polymer resin.
- the inkjet head of the present invention is suitable for use in recording devices such as printers, facsimile machines, and copiers.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50133494A JP3208775B2 (ja) | 1992-06-11 | 1993-06-11 | インクジェットヘッド及びインクジェットヘッドの製造方法 |
EP93913512A EP0616890B1 (en) | 1992-06-11 | 1993-06-11 | Ink jet head and method of manufacturing ink jet head |
US08/193,144 US5604522A (en) | 1992-06-11 | 1993-06-11 | Ink jet head and a method of manufacturing the ink jet head |
DE69314315T DE69314315T2 (de) | 1992-06-11 | 1993-06-11 | Tintenstrahlkopf und verfahren zur herstellung |
HK98102682A HK1005905A1 (en) | 1992-06-11 | 1998-03-30 | Ink jet head and method of manufacturing ink jet head |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4/152402 | 1992-06-11 | ||
JP15240292 | 1992-06-11 | ||
JP4/298858 | 1992-11-09 | ||
JP29885892 | 1992-11-09 | ||
JP5/11973 | 1993-01-27 | ||
JP1197393 | 1993-01-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993025390A1 true WO1993025390A1 (en) | 1993-12-23 |
Family
ID=27279656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/000788 WO1993025390A1 (en) | 1992-06-11 | 1993-06-11 | Ink jet head and method of manufacturing ink jet head |
Country Status (7)
Country | Link |
---|---|
US (1) | US5604522A (ja) |
EP (1) | EP0616890B1 (ja) |
JP (1) | JP3208775B2 (ja) |
DE (1) | DE69314315T2 (ja) |
HK (1) | HK1005905A1 (ja) |
SG (1) | SG47692A1 (ja) |
WO (1) | WO1993025390A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0695641A3 (de) * | 1994-08-03 | 1997-03-12 | Francotyp Postalia Gmbh | Anordnung für plattenförmige Piezoaktoren und Verfahren zu deren Herstellung |
JP2003526903A (ja) * | 1999-04-20 | 2003-09-09 | シーゲイト テクノロジー エルエルシー | 差動型pztアクチベータの電極パターンの形成 |
US7159315B2 (en) | 1999-01-29 | 2007-01-09 | Seiko Epson Corporation | Method of producing an elastic plate for an ink jet recording head |
JP2007152653A (ja) * | 2005-12-02 | 2007-06-21 | Amt Kenkyusho:Kk | インクジェットヘッド用金属箔−芳香族ポリマー積層体 |
JP2008110571A (ja) * | 2006-10-31 | 2008-05-15 | Ricoh Co Ltd | 液体吐出ヘッド、液体吐出装置、画像形成装置、液体吐出ヘッドの製造方法 |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5764257A (en) | 1991-12-26 | 1998-06-09 | Seiko Epson Corporation | Ink jet recording head |
JPH08267744A (ja) * | 1995-03-31 | 1996-10-15 | Minolta Co Ltd | インクジェット記録装置 |
US6142609A (en) * | 1995-08-01 | 2000-11-07 | Brother Kogyo Kabushiki Kaisha | End portion structure for connecting leads of flexible printed circuit board |
JP3491187B2 (ja) * | 1996-02-05 | 2004-01-26 | セイコーエプソン株式会社 | インクジェット式記録装置による記録方法 |
US6050678A (en) * | 1996-09-18 | 2000-04-18 | Brother Kogyo Kabushiki Kaisha | Ink jet head |
DE19747178C2 (de) * | 1996-12-26 | 2000-03-02 | Fujitsu Ltd | Tintenstrahlkopf mit piezoelektrischem Antrieb und Verfahren zur Herstellung desselben |
JPH10305578A (ja) * | 1997-03-03 | 1998-11-17 | Seiko Epson Corp | インクジェット式記録ヘッド |
JPH10264374A (ja) * | 1997-03-27 | 1998-10-06 | Seiko Epson Corp | インクジェット式記録ヘッド |
CN1094835C (zh) * | 1998-03-04 | 2002-11-27 | 大霸电子股份有限公司 | 振动片溢铸量的修正方法 |
NL1011128C2 (nl) * | 1999-01-25 | 2000-07-27 | Oce Tech Bv | Inrichting voor het afgeven van inkt. |
JP3339569B2 (ja) * | 1999-03-26 | 2002-10-28 | 富士ゼロックス株式会社 | インクジェット記録ヘッド |
JP3389987B2 (ja) | 1999-11-11 | 2003-03-24 | 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及びその製造方法 |
US6488367B1 (en) * | 2000-03-14 | 2002-12-03 | Eastman Kodak Company | Electroformed metal diaphragm |
US6629756B2 (en) | 2001-02-20 | 2003-10-07 | Lexmark International, Inc. | Ink jet printheads and methods therefor |
JP4277477B2 (ja) * | 2002-04-01 | 2009-06-10 | セイコーエプソン株式会社 | 液体噴射ヘッド |
US7387373B2 (en) * | 2002-09-30 | 2008-06-17 | Seiko Epson Corporation | Liquid ejecting head and liquid ejecting apparatus |
US7002609B2 (en) * | 2002-11-07 | 2006-02-21 | Brother International Corporation | Nano-structure based system and method for charging a photoconductive surface |
JP4549622B2 (ja) * | 2002-12-04 | 2010-09-22 | リコープリンティングシステムズ株式会社 | インクジェット式記録ヘッド及びそれを用いたインクジェット式記録装置 |
US7001013B2 (en) * | 2002-12-12 | 2006-02-21 | Brother International Corporation | Nanostructure based microfluidic pumping apparatus, method and printing device including same |
US7618647B2 (en) * | 2003-10-03 | 2009-11-17 | Boston Scientific Scimed, Inc. | Using bucky paper as a therapeutic aid in medical applications |
JP2005270743A (ja) * | 2004-03-23 | 2005-10-06 | Toshiba Corp | インクジェットヘッド |
JP5011871B2 (ja) * | 2006-07-28 | 2012-08-29 | 富士ゼロックス株式会社 | 液滴吐出ヘッド及び液滴吐出装置 |
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JPS5644671A (en) * | 1979-09-21 | 1981-04-23 | Seiko Epson Corp | Ink-jet head |
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JPS5734975A (en) * | 1980-08-12 | 1982-02-25 | Seiko Epson Corp | Manufacture of head for ink jet printer |
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-
1993
- 1993-06-11 SG SG1996003770A patent/SG47692A1/en unknown
- 1993-06-11 WO PCT/JP1993/000788 patent/WO1993025390A1/ja active IP Right Grant
- 1993-06-11 US US08/193,144 patent/US5604522A/en not_active Expired - Lifetime
- 1993-06-11 DE DE69314315T patent/DE69314315T2/de not_active Expired - Lifetime
- 1993-06-11 JP JP50133494A patent/JP3208775B2/ja not_active Expired - Lifetime
- 1993-06-11 EP EP93913512A patent/EP0616890B1/en not_active Expired - Lifetime
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0695641A3 (de) * | 1994-08-03 | 1997-03-12 | Francotyp Postalia Gmbh | Anordnung für plattenförmige Piezoaktoren und Verfahren zu deren Herstellung |
US5729263A (en) * | 1994-08-03 | 1998-03-17 | Francotyp-Postalia Ag & Co. | Arrangement for plate-shaped piezoactuators and method for the manufacture thereof |
US7159315B2 (en) | 1999-01-29 | 2007-01-09 | Seiko Epson Corporation | Method of producing an elastic plate for an ink jet recording head |
JP2003526903A (ja) * | 1999-04-20 | 2003-09-09 | シーゲイト テクノロジー エルエルシー | 差動型pztアクチベータの電極パターンの形成 |
JP4713742B2 (ja) * | 1999-04-20 | 2011-06-29 | シーゲイト テクノロジー エルエルシー | 差動型pztアクチュエータの電極パターンの形成方法 |
JP2007152653A (ja) * | 2005-12-02 | 2007-06-21 | Amt Kenkyusho:Kk | インクジェットヘッド用金属箔−芳香族ポリマー積層体 |
JP2008110571A (ja) * | 2006-10-31 | 2008-05-15 | Ricoh Co Ltd | 液体吐出ヘッド、液体吐出装置、画像形成装置、液体吐出ヘッドの製造方法 |
US8042917B2 (en) | 2006-10-31 | 2011-10-25 | Ricoh Company, Ltd. | Liquid dispenser head, liquid dispensing unit using same, image forming apparatus using same, and method of manufacturing liquid dispenser head |
Also Published As
Publication number | Publication date |
---|---|
EP0616890A4 (en) | 1994-12-14 |
JP3208775B2 (ja) | 2001-09-17 |
DE69314315D1 (de) | 1997-11-06 |
HK1005905A1 (en) | 1999-01-29 |
US5604522A (en) | 1997-02-18 |
EP0616890B1 (en) | 1997-10-01 |
EP0616890A1 (en) | 1994-09-28 |
DE69314315T2 (de) | 1998-04-09 |
SG47692A1 (en) | 1998-04-17 |
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