WO1998031546A1 - Tubing for an ink delivery system - Google Patents
Tubing for an ink delivery system Download PDFInfo
- Publication number
- WO1998031546A1 WO1998031546A1 PCT/US1997/009106 US9709106W WO9831546A1 WO 1998031546 A1 WO1998031546 A1 WO 1998031546A1 US 9709106 W US9709106 W US 9709106W WO 9831546 A1 WO9831546 A1 WO 9831546A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tubing
- poly
- ink
- fluid line
- ethylene
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
Definitions
- the present invention relates to tubing for a fluid line of an ink delivery system for ink jet printers.
- Printers and plotters for applying ink and other printing fluids are well known. Such devices typically include a supply of printing fluid and a printing mechanism. In a typical printer or plotter, printing fluid is routed to the printing mechanism using tubing to supply the required printing fluid to the printing mechanism.
- an ink supply is connected to a print head to supply ink to the print head. It is preferred that the ink supply be under slightly negative pressure at the print head to avoid weeping and leakage of ink which can reduce the quality of printing and, potentially, also cause clogging of the print head.
- One of the problems associated with inkjet ink supplies is the limited ink capacity of such systems. This problem is particularly acute in larger printers, especially for inkjet printers that are at least 90 cm wide, and plotters which use ink at a much faster rate than office or letter size inkjet printers.
- poly(vinyl chloride) is quite permeable to water and a significant factor in controlling the concentration and viscosity of the ink within the tubing. More significantly, the present invention has found that the concentration and viscosity of ink within the high water permeability tubing increases if the ink is left to sit in the tubing for long periods of time, such as a week between printing jobs.
- poly(vinyl chloride) has poor chemical resistance with another ingredient of water-based inkjet inks, diethylene glycol.
- plasticizers in poly( vinyl chloride) tubing can interact with ink jet inks.
- the present invention provides polymeric tubing for an ink delivery system that has low water permeability and good chemical resistance to inkjet inks.
- One feature of the present invention is reduced evaporative volume loss of inkjet inks within tubing of the ink delivery system, resulting in more consistent concentration and viscosity for the ink being delivered to a print mechanism.
- Another feature of the present invention is better compatibility of ink and the tubing through which the ink either flows during use or rests between printing jobs.
- An advantage of the present invention is better inkjet ink printing.
- Another advantage of the present invention is reduced maintenance of tubing and the ink delivery system.
- Another advantage of the present invention is the ability to retain ink within tubing between the ink reservoir and the ink print head without fear of clogging of ink within the tubing.
- the present invention provides a system for delivering printing fluid from a reservoir to a printing mechanism, comprising a fluid line of low water permeability polymeric tubing between the reservoir and the printing mechanism.
- the present invention also provides an inkjet ink fluid line comprising polymeric tubing having an ink-contacting surface of poly(ethylene) or poly(tetrafluoroethylene).
- FIG. 1 is a schematic diagram of an ink delivery system having tubing of the present invention.
- the present invention provides tubing connecting a printing fluid supply and an outlet for the printing fluid.
- the outlet will comprise some print mechanism, such as an inkjet print head, spray jet print head, toner drum, etc.
- print mechanism such as an inkjet print head, spray jet print head, toner drum, etc.
- liquid printing material examples include, but are not limited to, water-based pigmented inks and water-based dye inks.
- FIG. 1 an illustrative embodiment of one schematic inkjet delivery system 10 according to the present invention is depicted including an inkjet printer or plotter 11 and corresponding print head 12, fluid line 14 and ink supply reservoir 20.
- the reservoir 20 is preferably open to ambient pressure through an opening such as 26. Opening 26 also preferably allows for refilling of the reservoir 20 as ink 22 is consumed during printing.
- Fluid line 14 is provided to supply ink 22 from reservoir 20 to the print head 12.
- reservoir 20 and one print head 12 and one fluid line 14 are shown in Fig. 1 , it is to be understood that any number of sets of reservoir/fluid line/print head can be employed according to printing requirements.
- monochromatic printing typically black, one set can be used.
- polychromatic printing typically four colors (cyan, magenta, yellow and black) are used, each requiring its own set of reservoir, fluid line, and print head.
- spot colors can be employed, such as a specific color demanded for printing of marketing brands that have a specific recognizable color, such as the particular color of red employed in the 3M brand used by Minnesota Mining and Manufacturing Company.
- Inks that particularly benefit from the present invention can be any commercially available pigmented or dye inkjet ink, including those available as 3MTM Durable Pigment Inks from Minnesota Mining and Manufacturing Company of St. Paul, Minnesota.
- Nonlimiting examples of commercially available large reservoir ink delivery systems include a Big InkTM delivery system from LaserMaster Corporation of Eden Prairie, Minnesota and Bulk InkTM delivery system from Colossal Graphics Inc. of Palo Alto, California. Further, a 3MTM Ink Delivery System from Minnesota
- Fluid line 14 can be constructed from tubing that has an inside diameter ranging from about 0.1 to about 0.3 cm and typically has a length of about 2-3 meters from each reservoir 20 and each print head 12.
- the inside diameter of fluid line 14 is a factor for the rate of evaporative volume loss, all other parameters being constant. For example, if the same composition of tubing having the same wall thickness has different inside diameters, the surface area of the tubing that can absorb water increases with increasing inside diameter. However, the volume of ink within tubing of greater inside diameter is also greater.
- fluid line 14 preferably has an inside diameter ranging from about 0.20 to about 0.3 cm.
- Fluid line 14 can be made from any low water permeability polymeric tubing.
- Low water permeability in the polymeric tubing for fluid line 14 reduces evaporative volume loss of pigmented inkjet inks to less than about 0.7 percent of initial volume per day and desirably less than about 0.6 or even 0.5 percent of initial volume per day.
- the evaporative volume loss is less than about 0.3 percent of initial volume per day.
- Nonlimiting examples of such polymeric tubing include poly(ethylene); poly(ethylene)-lined polymeric tubing; poly(tetrafluoroethylene); and poly(tetrafluoroethylene)-lined polymeric tubing.
- Commercially available polymeric tubing that can be lined with poly(ethylene) or poly(tetrafluoroethylene) includes poly(vinyl chloride) tubing that provides good flexibility for use as a fluid line 14.
- Use of tubing of the present invention not only reduces evaporative volume loss of water from inkjet ink within fluid line 14 but also minimizes the possibility of separation of ink components caused by leaching of plasticizers from polymeric tubing containing poly (vinyl chloride).
- Evaporative Volume Loss Test The rate of initial volume loss of ink was determined by filling a variety of polymeric tubing, each 30.48 cm long, about half full with water-based ink and sealing both ends closed. Measurements were made over several days while the sealed tubing resided in room temperature, pressure, and humidity conditions, i.e., dry humidity conditions of winter in Minnesota (approximately 25% R.H.)). The length of the ink column in each polymeric tube was measured compared with the initial length to determine the average percentage evaporative volume loss per day.
- Table 1 shows the compositions of polymeric tubing, the inside diameter of the tubing, and the average percentage evaporative volume loss per day for Examples 1-3 and Comparative Examples A-C.
- TygonTM brand tubing from Norton Company of Akron, Ohio and, distributed by Cole-Parmer Company of Chicago, Illinois.
- fluid line 14 There can be different portions of fluid line 14 that require different levels of flexibility due to movement of the print head 12 across the printer. For this reason, those portions of fluid line 14 requiring more flexibility can use poly(ethylene)-lined poly(vinyl chloride) tubing and those portions of fluid line 14 requiring less flexibility can use poly(ethylene) tubing. Suitable fittings can be used to connect different portions of fluid line 14.
Landscapes
- Ink Jet (AREA)
Abstract
The present invention provides tubing for a fluid line of an ink delivery system. The tubing has a composition and inside diameter that reduces evaporative volume loss of ink from the tubing when the ink remains stationary in the tubing. Useful low water permeability polymeric tubing includes poly(ethylene) tubing; poly(ethylene)-lined polymeric tubing; poly(tetrafluoroethylene) tubing; and poly(tetrafluoroethylene)-lined polymeric tubing.
Description
TUBING FOR AN INK DELIVERY SYSTEM
Field of the Invention
The present invention relates to tubing for a fluid line of an ink delivery system for ink jet printers.
Background of the Invention Printers and plotters for applying ink and other printing fluids are well known. Such devices typically include a supply of printing fluid and a printing mechanism. In a typical printer or plotter, printing fluid is routed to the printing mechanism using tubing to supply the required printing fluid to the printing mechanism. In one particular type of printer, i.e., an inkjet printer, an ink supply is connected to a print head to supply ink to the print head. It is preferred that the ink supply be under slightly negative pressure at the print head to avoid weeping and leakage of ink which can reduce the quality of printing and, potentially, also cause clogging of the print head. One of the problems associated with inkjet ink supplies is the limited ink capacity of such systems. This problem is particularly acute in larger printers, especially for inkjet printers that are at least 90 cm wide, and plotters which use ink at a much faster rate than office or letter size inkjet printers.
Large reservoir ink delivery systems commercially available employ tubing for each color approximately 2-3 meters long between each reservoir and each printhead.
Summary of the Invention
Conventional tubing for large reservoir ink delivery systems generally use poly(vinyl chloride) tubing.
One aspect of the invention has found that poly(vinyl chloride) is quite permeable to water and a significant factor in controlling the concentration and viscosity of the ink within the tubing. More significantly, the present invention has found that the concentration and viscosity of ink within the high water permeability tubing increases if the ink is left to sit in the tubing for long periods of time, such as a week between printing jobs.
Another aspect of the invention has found that poly(vinyl chloride) has poor chemical resistance with another ingredient of water-based inkjet inks, diethylene glycol. Moreover, plasticizers in poly( vinyl chloride) tubing can interact with ink jet inks. Each of these deficiencies in conventional tubing can result in instability in the inkjet ink, poor jet-ability, and clogging of ink in the tubing. Poor printing results. Printers can malfunction or, at a minimum, require increased maintenance.
The present invention provides polymeric tubing for an ink delivery system that has low water permeability and good chemical resistance to inkjet inks. One feature of the present invention is reduced evaporative volume loss of inkjet inks within tubing of the ink delivery system, resulting in more consistent concentration and viscosity for the ink being delivered to a print mechanism.
Another feature of the present invention is better compatibility of ink and the tubing through which the ink either flows during use or rests between printing jobs. An advantage of the present invention is better inkjet ink printing.
Another advantage of the present invention is reduced maintenance of tubing and the ink delivery system.
Another advantage of the present invention is the ability to retain ink within tubing between the ink reservoir and the ink print head without fear of clogging of ink within the tubing.
The present invention provides a system for delivering printing fluid from a reservoir to a printing mechanism, comprising a fluid line of low water permeability polymeric tubing between the reservoir and the printing mechanism.
The present invention also provides an inkjet ink fluid line comprising polymeric tubing having an ink-contacting surface of poly(ethylene) or poly(tetrafluoroethylene).
Embodiments of the invention are described using a drawing.
Brief Description of the Drawing Fig. 1 is a schematic diagram of an ink delivery system having tubing of the present invention.
Embodiments of the Invention
The present invention provides tubing connecting a printing fluid supply and an outlet for the printing fluid. Typically, the outlet will comprise some print mechanism, such as an inkjet print head, spray jet print head, toner drum, etc.
The discussion below will focus on large reservoir inkjet delivery systems, but it should be understood that the present invention is applicable to any printing system in which the printing is accomplished using a liquid printing material that is transported via tubing to the printing mechanism as a fluid for printing onto a medium.
Furthermore, although ink is described for use with the inkjet printing systems below, it will be understood that any liquid printing material could be used in conjunction with the present invention. Examples of liquid printing materials include, but are not limited to, water-based pigmented inks and water-based dye inks.
Referring now to Fig. 1, an illustrative embodiment of one schematic inkjet delivery system 10 according to the present invention is depicted including an inkjet printer or plotter 11 and corresponding print head 12, fluid line 14 and ink supply reservoir 20. The reservoir 20 is preferably open to ambient pressure through an opening such as 26. Opening 26 also preferably allows for refilling of the reservoir 20 as ink 22 is consumed during printing. Fluid line 14 is provided to supply ink 22 from reservoir 20 to the print head 12.
While only one reservoir 20 and one print head 12 and one fluid line 14 are shown in Fig. 1 , it is to be understood that any number of sets of reservoir/fluid line/print head can be employed according to printing requirements. For monochromatic printing, typically black, one set can be used. For polychromatic printing, typically four colors (cyan, magenta, yellow and black) are used, each requiring its own set of reservoir, fluid line, and print head. For more elaborate printing, special or "spot" colors can be employed, such as a specific color demanded for printing of marketing brands that have a specific recognizable color, such as the particular color of red employed in the 3M brand used by Minnesota Mining and Manufacturing Company.
Inks that particularly benefit from the present invention can be any commercially available pigmented or dye inkjet ink, including those available as 3M™ Durable Pigment Inks from Minnesota Mining and Manufacturing Company of St. Paul, Minnesota.
Nonlimiting examples of commercially available large reservoir ink delivery systems include a Big Ink™ delivery system from LaserMaster Corporation of Eden Prairie, Minnesota and Bulk Ink™ delivery system from Colossal Graphics Inc. of Palo Alto, California. Further, a 3M™ Ink Delivery System from Minnesota
Mining and Manufacturing Company of St. Paul, Minnesota being offered for sale
can use tubing of the present invention. Other ink delivery systems are disclosed in U.S. Pat. No. 5,367,328; U.S. Pat. No. 5,369,429; U.S. Pat. No. 4,831,389; and PCT Publication WO97/10106.
Fluid line 14 can be constructed from tubing that has an inside diameter ranging from about 0.1 to about 0.3 cm and typically has a length of about 2-3 meters from each reservoir 20 and each print head 12. The inside diameter of fluid line 14 is a factor for the rate of evaporative volume loss, all other parameters being constant. For example, if the same composition of tubing having the same wall thickness has different inside diameters, the surface area of the tubing that can absorb water increases with increasing inside diameter. However, the volume of ink within tubing of greater inside diameter is also greater. Therefore, based on a change in surface area (circumference multiplied by length) of absorption and volume (circular area multiplied by length), it has been calculated that a doubling of the radius of the inside diameter would halve the percent evaporative volume loss rate. Based on commercially available polymeric tubing useful for the present invention and this calculation of tubing surface area to ink volume, fluid line 14 preferably has an inside diameter ranging from about 0.20 to about 0.3 cm.
Fluid line 14 can be made from any low water permeability polymeric tubing. Low water permeability in the polymeric tubing for fluid line 14 reduces evaporative volume loss of pigmented inkjet inks to less than about 0.7 percent of initial volume per day and desirably less than about 0.6 or even 0.5 percent of initial volume per day. Preferably, the evaporative volume loss is less than about 0.3 percent of initial volume per day.
Nonlimiting examples of such polymeric tubing include poly(ethylene); poly(ethylene)-lined polymeric tubing; poly(tetrafluoroethylene); and poly(tetrafluoroethylene)-lined polymeric tubing. Commercially available polymeric tubing that can be lined with poly(ethylene) or poly(tetrafluoroethylene) includes poly(vinyl chloride) tubing that provides good flexibility for use as a fluid line 14. Use of tubing of the present invention not only reduces evaporative volume loss of water from inkjet ink within fluid line 14 but also minimizes the possibility of separation of ink components caused by leaching of plasticizers from polymeric tubing containing poly (vinyl chloride).
Further features and advantages of tubing of the present invention are described in the following examples.
Examples 1-3 and Comparative Examples A-C
Evaporative Volume Loss Test: The rate of initial volume loss of ink was determined by filling a variety of polymeric tubing, each 30.48 cm long, about half full with water-based ink and sealing both ends closed. Measurements were made over several days while the sealed tubing resided in room temperature, pressure, and humidity conditions, i.e., dry humidity conditions of winter in Minnesota (approximately 25% R.H.)). The length of the ink column in each polymeric tube was measured compared with the initial length to determine the average percentage evaporative volume loss per day.
Table 1 shows the compositions of polymeric tubing, the inside diameter of the tubing, and the average percentage evaporative volume loss per day for Examples 1-3 and Comparative Examples A-C.
Table 1
Example Tubing Composition Inside Evaporative
Diameter Volume Loss Rate
(cm) (Percent per Day)
A Poly(vinyl chloride)* (PVC) 0.239 0.72
1 Poly(ethylene)-lined PVC1 0.239 0.31
2 Poly(ethylene)2 0.216 0.12
3 Poly(tetrafluoroethylene)3 0.172 0.28
B PVC 4 0.160 1.33
C PVC 4 0.239 0.97
* Commercially available tubing from LaserMaster Corporation believed to be PVC.
1 Commercially available from Natvar Company of Clayton, N.C.
2 Commercially available as Polyflo™ brand tubing from Imperial Eastman Chemicals and distributed by Duncan Company of Minneapolis, Minnesota, among others.
3 Commercially available as Voltrex™ Teflon™ tubing from SPC Technologies and distributed by New ark Electronics of Minneapolis, Minnesota, among others.
4 Commercially available as Tygon™ brand tubing from Norton Company of Akron, Ohio and, distributed by Cole-Parmer Company of Chicago, Illinois.
Use of a fluid line 14 that has tubing with an ink-contacting surface of poly(ethylene) or a poly(tetrafluoroethylene) unexpectedly reduces evaporative volume loss rate. The use of any of the compositions of Examples 1-3 is preferred over the use of conventional tubing compositions of Comparative Examples A-C. Further, a comparison between Comparative Examples B and C shows that an
increase in inside diameter of about 50% (0.160 to 0.239) reduces evaporative volume loss by about 27% (1.33 to 0.97). The difference between the theoretical direct inverse relationship and the actual results for Comparative Examples B and C can be attributed to effects of water vapor within the unfilled portion of the sealed tubing, among other things.
There can be different portions of fluid line 14 that require different levels of flexibility due to movement of the print head 12 across the printer. For this reason, those portions of fluid line 14 requiring more flexibility can use poly(ethylene)-lined poly(vinyl chloride) tubing and those portions of fluid line 14 requiring less flexibility can use poly(ethylene) tubing. Suitable fittings can be used to connect different portions of fluid line 14.
The invention is not limited to the above embodiments. The claims follow.
Claims
1. A system for delivering printing fluid from a reservoir to a printing mechanism, comprising: a fluid line of low water permeability polymeric tubing between the reservoir and the printing mechanism.
2. The system of Claim 1, wherein the fluid line reduces evaporative volume loss of pigmented inkjet inks to less than about 0.7 percent of initial volume per day, wherein the polymeric tubing is selected from the group consisting of poly(ethylene) tubing; poly(ethylene)-lined polymeric tubing; poly(tetrafluoroethylene) tubing; and poly(tetrafluoroethylene)-lined polymeric tubing, and wherein the fluid line has an inside diameter ranging from about 0.1 to about 0.3 cm.
3. The system of Claims 1 or 2, wherein the fluid line has more flexible portions and less flexible portions, and wherein the more flexible portions use poly(ethylene)-lined polymeric tubing, and wherein the less flexible portions use poly(ethylene) tubing.
4. An ink jet ink fluid line comprising polymeric tubing having an ink- contacting surface of poly(ethylene) or poly(tetrafluoroethylene).
5. The fluid line of Claim 4, wherein the polymeric tubing is selected from the group consisting of poly(ethylene) tubing; poly(ethylene)-lined polymeric tubing; poly(tetrafluoroethylene) tubing; and poly(tetrafluoroethylene)-lined polymeric tubing.
6. The fluid line of Claim 5, wherein the fluid line has more flexible portions and less flexible portions, and wherein the more flexible portions use poly(ethylene)-lined polymeric tubing, and wherein the less flexible portions use poly(ethylene) tubing.
7. The system of any of Claims 4-6, wherein the fluid line has an inside diameter ranging from about 0.1 to about 0.3 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU32186/97A AU3218697A (en) | 1997-01-21 | 1997-05-30 | Tubing for an ink delivery system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US78661997A | 1997-01-21 | 1997-01-21 | |
| US08/786,619 | 1997-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998031546A1 true WO1998031546A1 (en) | 1998-07-23 |
Family
ID=25139120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/009106 WO1998031546A1 (en) | 1997-01-21 | 1997-05-30 | Tubing for an ink delivery system |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU3218697A (en) |
| WO (1) | WO1998031546A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1018564C2 (en) | 2001-07-17 | 2003-01-20 | Oce Tech Bv | A device for transporting liquid ink, a flexible hose suitable for such a device and the use of such a hose. |
| US6509043B1 (en) | 1998-11-25 | 2003-01-21 | Nutri Pharma Asa | Composition comprising soy protein, dietary fibres and a phytoestrogen compound and use thereof in the prevention and/or treatment of pulmonary diseases |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4683477A (en) * | 1986-08-29 | 1987-07-28 | Eastman Kodak Company | Ink jet print head |
| JPS62288045A (en) * | 1986-06-09 | 1987-12-14 | Seiko Epson Corp | Ink jet recording apparatus |
| JPH02111555A (en) * | 1988-10-19 | 1990-04-24 | Fujitsu Ltd | inkjet recording device |
| JPH02137933A (en) * | 1988-11-18 | 1990-05-28 | Ricoh Co Ltd | Liquid jet recorder |
| JPH02151674A (en) * | 1988-12-02 | 1990-06-11 | Seiko Epson Corp | Inkjet recording method |
| JPH04158047A (en) * | 1990-10-22 | 1992-06-01 | Ricoh Co Ltd | Ink using device |
-
1997
- 1997-05-30 WO PCT/US1997/009106 patent/WO1998031546A1/en active Application Filing
- 1997-05-30 AU AU32186/97A patent/AU3218697A/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62288045A (en) * | 1986-06-09 | 1987-12-14 | Seiko Epson Corp | Ink jet recording apparatus |
| US4683477A (en) * | 1986-08-29 | 1987-07-28 | Eastman Kodak Company | Ink jet print head |
| JPH02111555A (en) * | 1988-10-19 | 1990-04-24 | Fujitsu Ltd | inkjet recording device |
| JPH02137933A (en) * | 1988-11-18 | 1990-05-28 | Ricoh Co Ltd | Liquid jet recorder |
| JPH02151674A (en) * | 1988-12-02 | 1990-06-11 | Seiko Epson Corp | Inkjet recording method |
| JPH04158047A (en) * | 1990-10-22 | 1992-06-01 | Ricoh Co Ltd | Ink using device |
Non-Patent Citations (7)
| Title |
|---|
| DATABASE WPI 1 June 1992 Derwent World Patents Index; AN 90221804, "ink jet record ink mm bubble power stabilized" * |
| DATABASE WPI 2 December 1988 Derwent World Patents Index; AN 90221804, "ink jet record ink mm bubble power stabilised" * |
| PATENT ABSTRACTS OF JAPAN vol. 012, no. 171 (M - 700) 21 May 1988 (1988-05-21) * |
| PATENT ABSTRACTS OF JAPAN vol. 014, no. 327 (M - 0998) 13 July 1990 (1990-07-13) * |
| PATENT ABSTRACTS OF JAPAN vol. 014, no. 375 (M - 1010) 14 August 1990 (1990-08-14) * |
| PATENT ABSTRACTS OF JAPAN vol. 014, no. 403 (C - 0753) 31 August 1990 (1990-08-31) * |
| PATENT ABSTRACTS OF JAPAN vol. 016, no. 450 (M - 1312) 18 September 1992 (1992-09-18) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6509043B1 (en) | 1998-11-25 | 2003-01-21 | Nutri Pharma Asa | Composition comprising soy protein, dietary fibres and a phytoestrogen compound and use thereof in the prevention and/or treatment of pulmonary diseases |
| NL1018564C2 (en) | 2001-07-17 | 2003-01-20 | Oce Tech Bv | A device for transporting liquid ink, a flexible hose suitable for such a device and the use of such a hose. |
| EP1277585A1 (en) | 2001-07-17 | 2003-01-22 | Océ-Technologies B.V. | An apparatus for transporting fluid ink, a flexible hose suitable for such apparatus, and the use of such a hose |
| US6726314B2 (en) | 2001-07-17 | 2004-04-27 | Oce Technologies B. V. | Apparatus for transporting fluid ink, and a flexible hose suitable for such transportation apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3218697A (en) | 1998-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6030074A (en) | Method and apparatus for delivering pressurized ink to a printhead | |
| US6164766A (en) | Automatic ink refill system for disposable ink jet cartridges | |
| US4585484A (en) | Recording liquid | |
| US4695824A (en) | Ink storing apparatus with a first case having plural ink tanks and second case having one ink tank and a waste ink receptacle | |
| US7988271B2 (en) | Ink jet printer, ink supply mechanism for the ink jet printer, and ink supply method | |
| US5113199A (en) | Ink delivery system for ink jet printers | |
| GB2282993A (en) | Disposable ink jet cartridge with an automatic refill system | |
| US8282203B2 (en) | Printing mechanism and method of ink formulation | |
| TW201420366A (en) | Printer configured for efficient air bubble removal | |
| JPH06115094A (en) | Recording method in ink jet printer using electroviscous fluid and device therefor | |
| EP3585619B1 (en) | Ink tank for regulating ink pressure | |
| CN106476442A (en) | Liquid-supplying system and the inkjet recording device possessing this liquid-supplying system | |
| JP2008073856A (en) | Liquid container, liquid droplet delivering apparatus, and image forming apparatus | |
| US20030007040A1 (en) | Large volume ink supply system | |
| JPH10157156A (en) | Fluid adapter for ink jet print cartridge | |
| TW425353B (en) | Liquid supply system, liquid container, liquid ejecting apparatus and liquid ejection control method | |
| CN101850661B (en) | Attachment and liquid supplying device | |
| WO1998031546A1 (en) | Tubing for an ink delivery system | |
| US5798781A (en) | Printer | |
| EP1677984B1 (en) | Fluid delivery system for an ink jet print head | |
| US7090327B1 (en) | Water-based ink jet printer | |
| US7029102B2 (en) | Ink delivery regulation apparatus and method of use | |
| US7033010B2 (en) | Ink delivery apparatus with collapsible ink chamber and method of use | |
| JPS6315916B2 (en) | ||
| US7097289B2 (en) | Ink delivery apparatus with pressure tuned rolling piston and method of use |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG UZ VN YU |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH KE LS MW SD SZ UG AM AZ BY KG KZ MD RU TJ TM AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| NENP | Non-entry into the national phase |
Ref country code: JP Ref document number: 1998534296 Format of ref document f/p: F |
|
| 122 | Ep: pct application non-entry in european phase |