EP1464501A2 - Druckerpatrone für einen Tintenstrahldrucker - Google Patents
Druckerpatrone für einen Tintenstrahldrucker Download PDFInfo
- Publication number
- EP1464501A2 EP1464501A2 EP04007607A EP04007607A EP1464501A2 EP 1464501 A2 EP1464501 A2 EP 1464501A2 EP 04007607 A EP04007607 A EP 04007607A EP 04007607 A EP04007607 A EP 04007607A EP 1464501 A2 EP1464501 A2 EP 1464501A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- ink
- printer
- filler
- printer cartridge
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17556—Means for regulating the pressure in the cartridge
-
- 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
- B41J2/17503—Ink cartridges
- B41J2/17513—Inner structure
Definitions
- the present invention relates to a printer cartridge for an inkjet printer, with a container for holding a certain amount of ink, the A printhead for ejecting ink from the container and one Has pressure control device for controlling the negative pressure in the container and the pressure control device from at least one in the interior of the container protruding, flexible packing to change the volume of the Container exists.
- printer cartridges that have at least one flexible packing protruding into the interior of the container for change of the volume of the container.
- the filler (s) stretch according to the amount of ink withdrawn, and so think it is the Negative air volume above the current ink level approximately constant.
- the packing is only in able to maintain the function described above until about half of the maximum amount of ink has been filled.
- Such printer cartridges are equipped with check valves, about the exhaustion of the compensation function by the filler or fillers Outside air is sucked into the container.
- check valves about the exhaustion of the compensation function by the filler or fillers Outside air is sucked into the container.
- the present invention has for its object a printer cartridge Generic type to create, in which the complete removal of the filled Ink is easily possible without oxygen from outside air in the container to have to contribute.
- This object is achieved in that the maximum expansion volume of the packing or the packing approximately the maximum filling volume matches the ink.
- the present invention is based on the idea that Pressure equalization within the tank by one or more only To cause packing, so that the intake of outside air into the container completely is unnecessary. This will keep the ink throughout its useful life the print cartridge has not been exposed to additional oxygen, which significantly increases the shelf life of the print cartridge.
- reference numeral 1 indicates a printer cartridge as a whole referred to for an ink jet printer.
- the printer cartridge 1 has a container 2 for holding ink 3.
- the Container 2 is in a manner known per se and therefore not shown in detail and Way equipped with a print head 4 for ejecting ink.
- a pressure control device 5 for controlling the negative pressure provided in container 2.
- This pressure control device 5 consists in The illustrated embodiment from an interior of the container 2 protruding, flexible filling body 6, which is generally designed as a hollow body, as clearly shown in Figure 2 and its interior over a Passage opening 7 of the cartridge cover 8 in connection with the atmosphere stands. When viewed towards the inside of the container 2, the filler 6 is complete closed.
- the filler 6 is advantageously designed like an accordion, as the figures Show 1 to 3 very clearly. Since the filler 6 made of a flexible material there is, the filler 6 can with increasing removal of ink 3rd from the container 2 according to the amount of ink withdrawn into the Extend the interior of the container 2 into it so that the vacuum conditions remain largely constant within container 2.
- the maximum expansion volume of the packing 6 is so designed that this corresponds approximately to the maximum filling volume of the ink 3.
- the filler 6 is intended and also suitable for the vacuum conditions inside the container 2 practically until completely removed to keep the ink 3 almost constant.
- the accordion-like filler 6 is preferably made of one of the ink 3 made of non-attackable plastic and attached to the cartridge cover 8.
- the base area of the packing 6 corresponds approximately to the clear cross-sectional area of the container 2, but is slightly smaller than this, so that the filler 6 revolves has a small distance from the side walls of the container 2. As a result, the expansion of the packing 6 into the interior of the container 2 not by frictional forces between the filling body 6 on the one hand and the inner surfaces the walls of the packing 2 hindered.
- Deviating from the illustrated embodiment can of course also two or more fillers 6 for the purpose of volume compensation inside the container when ink 3 is removed.
- the filler 6 can have a different basic geometric shape than shown and described in the illustrated embodiment.
- the filler 6 can also be designed without an accordion-like design.
- the only decisive factor is that the entire expansion volume of the packing 6 (or analogous to several fillers) is sufficient for the negative pressure conditions within the container 2 until almost complete emptying of the ink 3 in to keep about constant.
Landscapes
- Ink Jet (AREA)
Abstract
Description
- Figur 1
- einen schematisch dargestellten Schnitt durch eine erfmdungsgemäße Druckerpatrone mit relativ hohem Tinten-Füllstand,
- Figur 2
- einen im wesentlichen der Figur 1 entsprechenden Schnitt durch die Druckerpatrone nach Entnahme einer größeren Menge an Tinte,
- Figur 3
- einen Teilschnitt nach der Linie III - III in Figur 2.
Claims (5)
- Druckerpatrone (1) für einen Tintenstrahldrucker mit einem Behälter zur Aufnahme einer bestimmten Tintenmenge, wobei der Behälter (2) einen Druckkopf (4) zum Auswerfen von Tinte (3) aus dem Behälter (2) und eine Drucksteuereinrichtung (5) zur Steuerung des Unterdruckes im Behälter (2) aufweist und die Drucksteuereinrichtung (5) aus mindestens einem in den Innenraum des Behälters (2) hineinragenden, flexiblen Füllkörper zur Veränderung des Volumens des Behälters (2) besteht, dadurch gekennzeichnet, daß das maximale Ausdehnungsvolumen des Füllkörpers (6) etwa dem maximalen Füllvolumen der Tinte (3) entspricht.
- Druckerpatrone nach Anspruch 1, dadurch gekennzeichnet, daß der Füllkörper (6) ziehharmonikaartig ausgebildet ist.
- Druckerpatrone nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Grundfläche des Füllkörpers (6) etwa der lichten Querschnittsfläche des Behälters (2) entspricht.
- Druckerpatrone nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Füllkörper (6) mit dem Patronendeckel (8) verbunden ist und daß das Innere des Füllkörpers (6) über eine Durchtrittsöffnung (7) innerhalb des Patronendeckels (8) mit der Atmosphäre in Verbindung steht.
- Druckerpatrone nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Füllkörper (6) aus einem von der Tinte (3) der Druckerpatrone (1) nicht angreifbaren Kunststoff hergestellt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20305214U | 2003-04-01 | ||
DE20305214U DE20305214U1 (de) | 2003-04-01 | 2003-04-01 | Druckpatrone für einen Tintenstrahldrucker |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1464501A2 true EP1464501A2 (de) | 2004-10-06 |
EP1464501A3 EP1464501A3 (de) | 2005-08-03 |
Family
ID=7981241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04007607A Withdrawn EP1464501A3 (de) | 2003-04-01 | 2004-03-30 | Druckerpatrone für einen Tintenstrahldrucker |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1464501A3 (de) |
DE (1) | DE20305214U1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6151052A (en) * | 1999-08-06 | 2000-11-21 | Wisertek International Corporation | Ink jet cartridge for an ink jet printing apparatus |
US6213598B1 (en) * | 1998-09-30 | 2001-04-10 | Industrial Technology Research Institute | Pressure control device |
US20020067398A1 (en) * | 2000-12-05 | 2002-06-06 | Acer Communications & Multimedia Inc. | Pressure-compensation device |
US20020071013A1 (en) * | 2000-12-11 | 2002-06-13 | Acer Communications & Multimedia Inc. | Pressure-compensation device for ink reservoirs |
US20030020794A1 (en) * | 2001-07-27 | 2003-01-30 | Ching-Yu Chou | Underpressure regulating mechanism for inkjet pens |
-
2003
- 2003-04-01 DE DE20305214U patent/DE20305214U1/de not_active Expired - Lifetime
-
2004
- 2004-03-30 EP EP04007607A patent/EP1464501A3/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6213598B1 (en) * | 1998-09-30 | 2001-04-10 | Industrial Technology Research Institute | Pressure control device |
US6151052A (en) * | 1999-08-06 | 2000-11-21 | Wisertek International Corporation | Ink jet cartridge for an ink jet printing apparatus |
US20020067398A1 (en) * | 2000-12-05 | 2002-06-06 | Acer Communications & Multimedia Inc. | Pressure-compensation device |
US20020071013A1 (en) * | 2000-12-11 | 2002-06-13 | Acer Communications & Multimedia Inc. | Pressure-compensation device for ink reservoirs |
US20030020794A1 (en) * | 2001-07-27 | 2003-01-30 | Ching-Yu Chou | Underpressure regulating mechanism for inkjet pens |
Also Published As
Publication number | Publication date |
---|---|
DE20305214U1 (de) | 2003-06-05 |
EP1464501A3 (de) | 2005-08-03 |
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