GB2134041A - Liquid jet recording apparatus - Google Patents
Liquid jet recording apparatus Download PDFInfo
- Publication number
- GB2134041A GB2134041A GB08334232A GB8334232A GB2134041A GB 2134041 A GB2134041 A GB 2134041A GB 08334232 A GB08334232 A GB 08334232A GB 8334232 A GB8334232 A GB 8334232A GB 2134041 A GB2134041 A GB 2134041A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge ports
- liquid
- recording apparatus
- liquid injection
- injection recording
- 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
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 64
- 238000005192 partition Methods 0.000 claims abstract description 44
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000005871 repellent Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000002940 repellent Effects 0.000 claims 1
- 239000000976 ink Substances 0.000 description 52
- 239000003086 colorant Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001481828 Glyptocephalus cynoglossus Species 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 125000003709 fluoroalkyl group Chemical group 0.000 description 1
- -1 has been effected Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B41J2/1601—Production of bubble jet print heads
- B41J2/1603—Production of bubble jet print heads of the front shooter 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
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14145—Structure of the manifold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/145—Arrangement thereof
- B41J2/15—Arrangement thereof for serial printing
-
- 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
Abstract
In a liquid injection recording apparatus provided with a plurality of discharge ports 206 for discharging liquid and forming flying drops of liquid, a plurality of liquid flow paths communicating with the discharge ports, and a plurality of liquid projection energy generating members corresponding to the discharge ports, a partition member 208 is provided on a surface in which the discharge ports are disposed, so as to divide the plurality of discharge ports into at least two rows. <IMAGE>
Description
SPECIFICATION
Liquid injection recording apparatus
Background of the Invention
Field of the Invention
This invention relates to a liquid injection recording apparatus, and more particularly to a liquid injection recording apparatus improved in the structure of a surface in which discharge ports are disposed.
Description of the PriorArt An ink jet recording apparatus (a liquid injection recording apparatus) according to the prior art is of such a construction as shown in Figures 1 A and 1 B of the accompanying drawings. Figure 1 A is a perspective view, and Figure 1 B is a schematic cross-sectional view taken along a dot-and-dash line 1(b)-i (b) in Figure 1 A. In these Figures, reference numeral 101 designates the base plate of the recording apparatus, reference numeral 102 denotes supply ports for supplying recording liquid (for example, ink), and reference numeral 103 designates main flow paths for directing the ink to branch flow paths 104. Each branch flow path 104 has a projection energy generating element 105 and a discharge port 1 06a or 1 06b.
Reference numeral 107 designates a discharge port plate in which the discharge ports are disposed.
The liquid injection recording apparatus is a recording apparatus which, during recording, discharges drops of ink (drops of liquid) from the discharge ports 1 06a and 1 06b to thereby accomplish recording, and with such apparatus, it has sometimes been the case that after the liquid projecting function recovering operation which is to be effected when non-projection or unstable projection of drops of liquid occurs, for example, the operation of capping the discharge ports and sucking the ink, has been effected, ink pools collect near the discharge ports due to the capping. If such ink pools form, the drops of ink discharged from the discharge ports have their rectilinearity hampered by the ink pools, thus causing defective printing.Also, where inks of different colors are discharged from the discharge ports 1 06a and 1 06b, the inks of different colors in the ink pools created by the aforementioned recovering operation or the like become connected together due to their surface tension and the inks of thus mixed colors collect in the form of ink pools near the discharge ports. Further, when the inks of thus mixed colors diffuse from the discharge ports even into the branch flow paths 104 and the main flow paths 103, ink of impure colors is discharged and recorded. That is, the recorded print becomes impure in color.
Furthermore, when the inks mixed with each other cause a chemical reaction and deposits or the like are created, those deposits might collect in the discharge ports and clog the discharge ports. If the discharge ports are clogged, ink will no longer be discharged from the discharge ports as a matter of course and this may cause defective projection of ink. Accordingly, if ink pools remain near the discharge ports even after the recovering operation has been effected, unnecessary ink remains near the discharge ports and therefore, complete projection is not effected, and this might lead to occurrence of the above-described problem.
Further, when the discharge port plate 107 is moved parallel to the surface of the recording member (when the surface in which the discharge ports are disposed (the discharge port plate) is scanned), there has also occurred a problem that a part of the recording member or the paper feeding mechanism such as a paper keeping member directly strikes against the discharge ports to damage the discharge port or stain the recording paper witch ink. Also, to cause the drops of ink discharged from the discharge ports to accurately land on the recording member, it is necessary that the distance from the discharge ports disposed in the discharge port plate 107 to the recording member be kept constant.However, distance measurement in which the discharge ports are directly touched cannot be adopted in order to prevent the discharge ports from being damaged and thus, the non-contact type distance measuring method must unavoidably be adopted.
Accordingly, the assembly work has been very difficult. Further, when the discharge port plate is scanned, streams of air are created near the discharge ports, and this might also lead to occurrence of a problem that the direction of discharge of the drops of ink discharged from the discharge ports is disturbed to aggravate the quality of printing.
Summary of the Invention
The present invention has been made in view of the above-noted problems and an object thereof is to improve the structure of the discharge port plate and thereby provide a liquid injection recording apparatus which is capable of better recording.
That is, it is an object of the present invention to provide a liquid injection recording apparatus in which ink pools and mixing of inks of different colors do not occur. It is also an object of the present invention to provide a liquid injection recording apparatus in which drops of ink can be caused to accurately land on the recording member to thereby ensure an excellent quality of printing.
It is a further object of the present invention to provide a liquid injection recording apparatus provided with a plurality of discharge ports for discharging liquid and forming flying drops of liquid, a plurality of liquid flow paths communicating with the discharge ports, and a plurality of liquid projection energy generating members corresponding to the discharge ports, characterized in that a partition member is provided on a surface in which the discharge ports are disposed, so as to divide the plurality of discharge ports into at least two rows.
The invention will become fully apparent from the following detailed description thereof taken in conjunction with the accompanying drawings.
Brief Description of the Drawings
Figure 1 A is a perspective view for illustrating an example of the prior art.
Figure 1 B is a schematic cross-sectional view taken along a dot-and-dash line 1 (b)-1 (b) in
Figure 1A.
Figure 2A is a perspective view for illustrating an embodiment of the present invention.
Figure 2B is a schematic cross-sectional view taken along a dot-and-dash line 2(b)-2(b) in
Figure 2A.
Description of the Preferred Embodiment
A preferred embodiment of the present invention will hereinafter be described by reference to Figures 2A and 2B. Figure 2A is a perspective view of the present embodiment, and
Figure 2B is a schematic cross-sectional view taken along a dot-and-dash line 2(b)-2(b) in
Figure 2A. Reference numeral 201 designates a base plate, reference numeral 202 denotes ink supply ports, reference numeral 203 designates main flow paths, reference numeral 204 denotes branch flow paths, and reference numeral 205 designates projection energy generating elements.
Reference characters 206a and 206b designate discharge ports, reference numeral 207 denotes a discharge port plate, and reference numeral 208 designates a partition plate. The partition plate 208 is provided between the opposed discharge ports, as shown.
In the present embodiment, ink supplied through the ink supply ports 202 flies in the form of drops of liquid from the discharge ports 206a and 206b in communication with the liquid flow path comprising the main flow paths 203 and the branch flow paths 204 in response to the projection energy generated by the projection energy generating elements provided near the terminal ends of the branch flow paths and corresponding to the respective discharge ports.
The shape of the terminal end of each branch flow path is shown as a sector shape in the present embodiment, but it may also assume one of other various shapes including a rectangular shape.
With the liquid injection recording apparatus of the conventional construction, as previously described, it has sometimes been the case that the drops of ink remaining near the discharge ports collect in the form of ink pools when the pressure in the branch flow paths 204 and the main flow paths 203 is reduced by pressure reducing means (not shown) through the discharge ports and the ink in the branch flow paths 204 and the main flow paths 203 are discharged from the discharge ports. In the present embodiment, however, the discharge ports 206a and the discharge ports 206b are partitioned by the partition plate shown as a form of the partition member and therefore, different inks collected near the discharge ports do not mix with each other.When the amount of ink collected near the discharge ports increases and the ink reaches the partition plate 208, the ink of the ink pools is drawn toward the partition plate 208 due to the surface tension of the ink. Further, if the discharge port plate 207 in which the discharge ports are disposed is installed so that the partition plate 208 is longitudinal in the vertical direction, the unnecessary ink drawn toward the partition plate 208 will flow downwardly by being guided by the partition plate 208. Accordingly, the inks collected near the discharge ports do not mix with each other and therefore, no deposit is created in the ink of the ink pools and the discharge ports are not clogged.
Records of mixed impure colors are neither created. The partition plate 208 serves also as a guide for guiding the downward flow of the unnecessary ink collected near the discharge ports.
When the discharge port plate 207 having the partition plate 208 is scanned while facing the recording paper, the partition plate 208 is at a position nearer to the recording paper than the discharge ports and therefore, even if a part of a recording member or a paper feeding mechanism such as a paper keeping member juts out toward the discharge port plate 207 and touches the discharge port plate 207 during the scanning, the discharge ports will be protected by the partition plate 208. Also, the recording member does not directly touch the discharge ports and thus, the recording member can be prevented from being stained.
The discharge port plate 207 has the partition plate 208 as mentioned above and if the distance in the direction of height of the partition plate 208 is made constant, the standard for keeping the distance between the discharge ports and the recording member constant can be secured on that side of the partition plate 208 which is adjacent to the recording member and therefore, assembly can be accomplished by the use of a clearance gauge so that the distance between the discharge ports and the recording member is kept constant and thus, distance measurement is possible even in the contact system.
Further, by effecting recording with the height of the partition plate 208 adjusted to bring the recording member into contact with a part of the partition plate 208, recording can be accomplished with the distance between the discharge ports and the recording member always maintained constant.
When the discharge port plate 207 having the discharge ports causes drops of ink to be projected from the discharge ports and fly onto the recording member as it scans while facing the recording member, the presence of the partition plate 208 on the discharge port plate 207 intercepts the flow of the air near the discharge ports and therefore, the drops of ink projected from the discharge ports are not subjected to any extraneous influence and printing is not disturbed and thus, always accurate recording can be accomplished.
The partition plate 208 can provide a similar
effect even if the discharge ports are not disposed
in a matrix-like form as in the present
embodiment, but for example, discharge ports for
projecting drops of ink of different colors in a
lateral direction are disposed and the partition
plate 208 is provided between these respective discharge ports.
In the present embodiment, the opposed discharge ports are shown as being formed in offset or staggered relationship with one another, whereas of course, these discharge ports need not
always be arranged in offset relationship but may be arranged in juxtaposed relationship.
Also, in the present embodiment, the discharge
ports are shown as being formed in two rows of four discharge ports each, but it is obvious that the
number of the discharge ports and the number of the rows are not limited by such showing. This also holds true of the shape or the like of the liquid flow paths.
The partition plate can be formed as by etching of a metal or photo-forming of a photosensitive composition, and various materials therefor can be
selected. Also, the partition plate may be made from the same part as the discharge port plate 207 and they may comprise two parts, and in short, the partition plate may be formed by choosing a method regarded as suitable in the
method of manufacturing a liquid injection
recording apparatus.
It is preferable that at least a part of the
partition member or the surface in which the discharge ports are disposed or both be made water-repellent where water ink is used and oilrepellent where oil ink is used. However, where the surface in which the discharge ports are disposed has either of the above-mentioned properties, it is desirable that only the surface of the recording head which is opposed to the recording medium have either of the abovementioned properties.
To make at least a part of the partition member or the surface in which the discharge ports are -disposed or both either water-repellent or oilrepellent, it may be subjected to a generally known treatment which brings about either of the above-mentioned properties, or the partition member or the surface in which the discharge ports are disposed or both may be formed by the use of a material having either of the abovementioned properties.
As the treatment for providing the waterrepellent or the oil-repellent property as described above, mention may be made of a generally known treatment using fluorine compounds (for example, organic compounds having fluoroalkyl group), a silane coupling agent or a titanium coupling agent, and as the material therefor, mention may be made of generally known materials such as fluorine compounds such as tetrafluoroethylene resin or silicone.
The height and width of the partition plate are determined in accordance with the characteristics and performance of the liquid injection recording apparatus, but of course must be such that at least the drops of liquid projected accurately reach the recording member. The partition plate may be provided not only between the opposed discharge ports, but also between adjacent discharge ports if it is formed so that movement of ink pools occurs well.
Also, it is very preferable to provide not one but a plurality of partition plates between adjacent discharge ports in a case where inks of different kinds (for example, different colors) are used, because mixing of the inks can be prevented.
The projection energy generating members may be generally known various means such as electro-thermal converts (for example, heaters or electro-mechanical converters (for example, piezo elements).
Claims (20)
1. A liquid injection recording apparatus provided with a plurality of discharge ports for discharging liquid and forming flying drops of liquid, a plurality of liquid flow paths communicating with said discharge ports, and a plurality of liquid projection energy generating members corresponding to said discharge ports, said apparatus comprising a partition member provided on a surface in which said plurality of discharge ports are disposed, so as to divide said plurality of discharge ports into at least two rows.
2. A liquid injection recording apparatus according to Claim 1, wherein said partition member and the member forming said surface in which the discharge ports are disposed are discrete members.
3. A liquid injection recording apparatus according to Claim 1, wherein said partition member and the member forming said surface in which the discharge ports are disposed are an identical member.
4. A liquid injection recording apparatus according to Claim 1, wherein at least a part of said partition member is water-repellent.
5. A liquid injection recording apparatus according to Claim 1, wherein at least a part of said partition member is oil-repellent.
6. A liquid injection recording apparatus according to Claim 1 , wherein at least a part of said surface in which the discharge ports are disposed is water-repellent.
7. A liquid injection recording apparatus according to Claim 1, wherein at least a part of said surface in which the discharge ports are disposed is oil-repellent.
8. A liquid injection recording apparatus according to Claim 1, wherein at least a part of said partition member and said surface in which the discharge ports are disposed is water- repellent.
9. A liquid injection recording apparatus according to Claim 1, wherein at least a part of said partition member and said surface in which the discharge ports are disposed is oil-repellent.
10. liquid injection recording apparatus according to Claim 1, wherein a plurality of partition members are provided between a discharge port and a discharge port.
11. A liquid injection recording apparatus according to Claim 1 , wherein said plurality of discharge ports are disposed in staggered relationship.
12. A liquid injection recording apparatus according to Claim 1, wherein said plurality of discharge ports are disposed in juxtaposed relationship.
13. A liquid injection recording apparatus according to Claim 1 , wherein at least said partition member is formed of a metal.
14. A liquid injection recording apparatus according to Claim 1 , wherein at least said partition member is formed of a photosensitive composition.
15. A liquid injection recording apparatus according to Claim 1, wherein each of the discharge ports divided into a plurality of sets by said partition member is in communication with the same liquid flow path.
1 6. A liquid injection recording apparatus according to Claim 1, wherein said liquid flow paths comprise main flow paths and branch flow paths, and said liquid projection energy generating members are provided in said branch flow paths.
1 7. A liquid injection recording apparatus according to Claim 1, wherein said liquid projection energy generating members are provided near the terminal ends of the liquid flow paths.
1 8. A liquid injection recording apparatus according to Claim 1, wherein said liquid projection energy generating members are provided near the terminal ends of the liquid flow paths, and said terminal end portions are of a sector shape.
19. Liquid jet recording apparatus comprising first and second discharge ports for discharging liquid for forming droplets thereof for producing a recording therewith on a recording member, said discharge ports communicating with respective liquid supply ducts, and means defining between said orifices a partition member for separating liquid emitted from the orifices.
20. Liquid jet recording apparatus substantially as herein described with reference to Figure 2 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23007382A JPS59123671A (en) | 1982-12-28 | 1982-12-28 | Liquid jet recorder |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8334232D0 GB8334232D0 (en) | 1984-02-01 |
| GB2134041A true GB2134041A (en) | 1984-08-08 |
| GB2134041B GB2134041B (en) | 1985-09-18 |
Family
ID=16902115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08334232A Expired GB2134041B (en) | 1982-12-28 | 1983-12-22 | Liquid jet recording apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS59123671A (en) |
| DE (1) | DE3347175A1 (en) |
| GB (1) | GB2134041B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4842493A (en) * | 1986-11-14 | 1989-06-27 | Qenico Ab | Piezoelectric pump |
| EP0707967A2 (en) * | 1994-10-06 | 1996-04-24 | Hewlett-Packard Company | Printer head |
| EP0767060A2 (en) * | 1995-09-14 | 1997-04-09 | Canon Kabushiki Kaisha | Liquid discharging head, liquid discharging head cartridge and liquid discharging apparatus |
| US5760808A (en) * | 1994-04-20 | 1998-06-02 | Oce Printing Systems Gmbh | Thermoelectric printing unit for transferring an ink onto a recording medium |
| EP0894627A3 (en) * | 1997-07-31 | 1999-09-15 | Canon Kabushiki Kaisha | A liquid jet head, a print head cartridge, a liquid jet recording apparatus, and a method for manufacturing liquid jet heads |
| US6220697B1 (en) * | 1996-08-30 | 2001-04-24 | Canon Kabushiki Kaisha | Ink jet recording head and ink jet recording apparatus having such head |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62244645A (en) * | 1986-04-17 | 1987-10-26 | Toshiba Corp | Recording apparatus |
| CA1303904C (en) * | 1987-08-10 | 1992-06-23 | Winthrop D. Childers | Offset nozzle droplet formation |
| JP2785948B2 (en) * | 1989-01-20 | 1998-08-13 | 株式会社リコー | Ink recording device |
| JP3179834B2 (en) * | 1991-07-19 | 2001-06-25 | 株式会社リコー | Liquid flight recorder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56172A (en) * | 1979-06-18 | 1981-01-06 | Nec Corp | Ink jet recording head |
| JPS5689569A (en) * | 1979-12-19 | 1981-07-20 | Canon Inc | Ink jet recording head |
| US4380771A (en) * | 1980-06-27 | 1983-04-19 | Canon Kabushiki Kaisha | Ink jet recording process and an apparatus therefor |
| US4611219A (en) * | 1981-12-29 | 1986-09-09 | Canon Kabushiki Kaisha | Liquid-jetting head |
-
1982
- 1982-12-28 JP JP23007382A patent/JPS59123671A/en active Pending
-
1983
- 1983-12-22 GB GB08334232A patent/GB2134041B/en not_active Expired
- 1983-12-27 DE DE19833347175 patent/DE3347175A1/en active Granted
Non-Patent Citations (1)
| Title |
|---|
| NONE * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4842493A (en) * | 1986-11-14 | 1989-06-27 | Qenico Ab | Piezoelectric pump |
| US5984464A (en) * | 1992-04-02 | 1999-11-16 | Hewlett-Packard Company | Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer |
| US6332677B1 (en) | 1992-04-02 | 2001-12-25 | Hewlett-Packard Company | Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer |
| US5760808A (en) * | 1994-04-20 | 1998-06-02 | Oce Printing Systems Gmbh | Thermoelectric printing unit for transferring an ink onto a recording medium |
| EP0707967A2 (en) * | 1994-10-06 | 1996-04-24 | Hewlett-Packard Company | Printer head |
| EP0707967A3 (en) * | 1994-10-06 | 1997-02-19 | Hewlett Packard Co | Printer head |
| US6179412B1 (en) | 1995-09-14 | 2001-01-30 | Canon Kabushiki Kaisha | Liquid discharging head, having opposed element boards and grooved member therebetween |
| EP0767060A3 (en) * | 1995-09-14 | 1997-08-20 | Canon Kk | Liquid discharging head, liquid discharging head cartridge and liquid discharging apparatus |
| EP0767060A2 (en) * | 1995-09-14 | 1997-04-09 | Canon Kabushiki Kaisha | Liquid discharging head, liquid discharging head cartridge and liquid discharging apparatus |
| US6220697B1 (en) * | 1996-08-30 | 2001-04-24 | Canon Kabushiki Kaisha | Ink jet recording head and ink jet recording apparatus having such head |
| EP0894627A3 (en) * | 1997-07-31 | 1999-09-15 | Canon Kabushiki Kaisha | A liquid jet head, a print head cartridge, a liquid jet recording apparatus, and a method for manufacturing liquid jet heads |
| US6120136A (en) * | 1997-07-31 | 2000-09-19 | Canon Kabushiki Kaisha | Liquid jet head, a head cartridge, a liquid jet recording apparatus, and a method for manufacturing liquid jet heads |
| AU747327B2 (en) * | 1997-07-31 | 2002-05-16 | Canon Kabushiki Kaisha | A liquid jet head, a head cartridge, a liquid jet recording apparatus, and a method for manufacturing liquid jet heads |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59123671A (en) | 1984-07-17 |
| DE3347175C2 (en) | 1993-05-27 |
| GB8334232D0 (en) | 1984-02-01 |
| GB2134041B (en) | 1985-09-18 |
| DE3347175A1 (en) | 1984-07-05 |
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| PE20 | Patent expired after termination of 20 years |
Effective date: 20031221 |