CN107757131B - A kind of ink storage device of improved cartridge of ink-jet printer - Google Patents

Abstract

The invention discloses a kind of ink storage devices of improved cartridge of ink-jet printer, including print cartridge, the bottom of the inner cavity of the print cartridge is fixedly connected with ink storage device, the top in the front and the back side of the print cartridge respectively symmetrically offers mobile doorframe, the surface of the mobile doorframe slidably connects mobile door, the positive middle position of the movement door is fixedly connected with handle, the top on the surface of the two sides of the inner cavity of the print cartridge respectively symmetrically offers ventilation opening, the surface of the ventilation opening slidably connects sealing cover, and the present invention relates to printing device technical fields.The ink storage device of the excellent improved cartridge of ink-jet printer of the one kind, what is reached prevents ink in print cartridge from hardening purpose, and leakproof door is equipped with by the surface of the two sides of the inner cavity of ink storing chamber, it effectively prevent leading to ink outflow damage printer due to inclination in mobile or disassembly print cartridge, while being flashed using indicator light to prompt user to add into ink storing chamber or stop adding ink.

Description

A kind of ink storage device of improved cartridge of ink-jet printer

Technical field

The present invention relates to printing device technical field, the ink storage of specially a kind of improved cartridge of ink-jet printer is filledIt sets.

Background technique

Print cartridge generally refers to be used to store marking ink in ink-jet printer (including ink-jet multifunctional machine), andIt is finally completed the component of printing, from the composed structure of print cartridge currently on the market, generally speaking, Split type ink box can be divided intoWith integral type print cartridge, spray head is exactly integrated on print cartridge by integral type print cartridge, after ink is finished one new print cartridge of replacement,A new print head is also meaned that while having been replaced, relatively high printing precision may be implemented using this print cartridge, andCan guarantee print quality, since spray head is with replacing ink cartridge, will not because of ink gun abrasion and make under print qualityDrop, Split type ink box refer to the product that spray head and cartridge designs is separated, and the starting point of this structure design is primarily to dropLow printing cost, because this print cartridge is not integrated on printing head, print cartridge printing head when invalid can continue to makeWith, while user is also simplified to the disassembly process of print cartridge, reduce the chance artificially damaged to printer, but this print cartridge knotStructure also has apparent defect, that is, spray head can cannot timely update, growth of the printer with the working time, printer matterAmount just has dropped naturally, until spray head degenerates.Existing integral type print cartridge is to reduce its use cost, and user usually existsInk is but inconvenient using voluntarily adding ink injection into print cartridge after outer, if the improper printer easy to damage of disassembling section, existingPolychrome print cartridge, which then refers to, is encapsulated in multiple color in one print cartridge, if a kind of color has been used up, even if other several colorsHave, it is also necessary to entire print cartridge all be changed, economic cost is larger, and easily causes ink wastes and pollution.

Summary of the invention

(1) the technical issues of solving

In view of the deficiencies of the prior art, the present invention provides a kind of ink storage device of improved cartridge of ink-jet printer,Solve the problems, such as that existing print cartridge voluntarily adds black inconvenience and printer is easily caused to damage.

(2) technical solution

In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of improved ink-jet printer useThe ink storage device of print cartridge, including print cartridge, the bottom of the inner cavity of the print cartridge are fixedly connected with ink storage device, the print cartridgeThe top in front and the back side respectively symmetrically offers mobile doorframe, and the surface of the mobile doorframe slidably connects mobile door,The positive middle position of the mobile door is fixedly connected with handle, the top on the surface of the two sides of the inner cavity of the print cartridgeVentilation opening is respectively symmetrically offered, the surface of the ventilation opening slidably connects sealing cover, and the sealing cover is far from mobileThe surface of one end of doorframe is fixedly connected with the first telescopic rod, and the surface of described one end of the first telescopic rod far from sealing cover is solidSurely it is connected with the first cylinder, and is fixedly connected between the surface and print cartridge of the side of first cylinder far from handle, it is describedPrint cartridge inner cavity side surface, and be located at the first cylinder immediately below be fixedly connected with control device, the print cartridgeThe bottom of the outer surface of the side of control device is provided with controlled atmosphere device, the two sides of the bottom of the outer surface of the print cartridgeRespectively symmetrically and it is fixedly connected with mobile sliding block, the center on the surface of described one end of mobile sliding block far from control deviceIt is fixedly connected with the second telescopic rod, the surface of the one end of second telescopic rod far from mobile sliding block is fixedly connected with the second gasCylinder is connected between second cylinder and ink-jet printer, and one end of mobile sliding block close to second cylinder is fixedIt is connected with the first limited block, it is out of ink to offer first on the transversal centerline location of the bottom of the outer surface of the print cartridgeMouthful, the middle position of the lower surface of first ink outlet port is laterally homogeneous to be provided with spray head.

Preferably, the ink storage device includes the first outline border, and the inner cavity of first outline border is provided with by partitionInk storing chamber, the center on the surface of the bottom of the ink storing chamber offer the second ink outlet port, the inner cavity of the ink storing chamberThe middle position at top be fixedly connected with air pressure double-beat drop valve, the surface at the top of the ink storing chamber and be located at air pressure double-beat drop valveSurface offer venthole, the surface of the side at the top of the ink storing chamber offers pouring ink hole, the ink storing chamberThe surface at top and the side far from pouring ink hole be provided with information indicator light, the top of the inner cavity of the ink storing chamber and closeThe surface of the side of information indicator light is provided with level switch.

Preferably, the control device includes the second outline border, and the side of the bottom of the inner cavity of second outline border is solidSurely it is connected with controller, the surface of the bottom of the inner cavity of second outline border, and one end far from controller is fixedly connected withMinitype air humidifier, and the moisture exhausting port of the Minitype air humidifier through the second outline border and extends to the outer of the second outline borderThe middle position in portion, the surface of the bottom of the inner cavity of second outline border is provided with humidity sensor.

Preferably, the controlled atmosphere device includes third outline border, and the bottom of the inner cavity of the third outline border is fixedly connectedThere is minipump, the minipump is communicated with vacuum-pumping tube at the top of the surface of the side of print cartridge, describedVacuum-pumping tube is connected with draft hood far from one end of minipump, and the vacuum-pumping tube through print cartridge and extends to print cartridgeInside.

Preferably, the moving door frame is located on two mobile doorframes, and mobile door is solid close to one end of the second cylinder 16Surely it is connected with the second limited block.

Preferably, the upper surface of second ink outlet port is covered with strainer.

Preferably, the surface of the two sides of the inner cavity of the ink storing chamber, and the position concordant with the lower surface of air pressure double-beat drop valveIt sets and leakproof door is rotatably connected to by rotation axis.

Preferably, the sealing cover and vent surface are provided with gasket.

Preferably, it is electrical connected between the controller and Minitype air humidifier, Minitype air humidifier.

Preferably, the inner surface of the pouring ink hole is threaded with injection-tube.

(3) beneficial effect

The present invention provides a kind of ink storage devices of improved cartridge of ink-jet printer.Have it is following the utility model has the advantages that

(1), the ink storage device of the improved cartridge of ink-jet printer, passes through the top on the surface of the two sides of the inner cavity of print cartridgePortion respectively symmetrically offers ventilation opening, and the surface of ventilation opening slidably connects sealing cover, and the sealing cover is far from mobile doorframeThe surface of one end be fixedly connected with the first telescopic rod, the surface of the one end of the first telescopic rod far from sealing cover is fixedly connected withOne cylinder, and be fixedly connected between the surface and print cartridge of side of first cylinder far from handle, sealing cover is set with vent surfaceIt is equipped with gasket, has achieved the purpose that prevent ink in print cartridge from hardening, when not using ink, print cartridge is in sealing state, preventsMoisture evaporation in ink, and by controller control humidity sensor and Minitype air humidifier, in real-time monitoring print cartridgeHumidity, so that it is remained suitable humidity environment, further effectively ink avoided to harden, be conducive to extend it using the longevityLife.

(2), the ink storage device of the improved cartridge of ink-jet printer, by minipump close to the side of print cartridgeVacuum-pumping tube is communicated at the top of surface, vacuum-pumping tube is connected with draft hood, and vacuum-pumping tube far from one end of minipumpThrough print cartridge and the inside of print cartridge is extended to, has reached and has improved subnormal ambient for print cartridge, improved the purpose of speed out of ink, and pass throughThe surface of the two sides of the inner cavity of ink storing chamber, and the position concordant with the lower surface of air pressure double-beat drop valve is rotatably connected to by rotation axisLeakproof door is effectively prevent being led to ink outflow damage printer due to inclination in mobile or disassembly print cartridge, and utilizes informationIndicator light and level switch are electrically connected, and can not only indicate the corresponding indoor ink color of ink storage, and when in ink storing chamberInk when being below or above setting value, the equal sparkling of indicator light is to prompt user add into ink storing chamber or stops adding blackWater.

Detailed description of the invention

Fig. 1 is schematic structural view of the invention；

Fig. 2 is the structural schematic diagram of ink storage device of the present invention；

Fig. 3 is the structural schematic diagram of controlled atmosphere device of the present invention；

Fig. 4 is the structural schematic diagram of control device of the present invention；

Fig. 5 is outside side view of the present invention.

In figure: 1 print cartridge, 2 ink storage devices, 21 first outline borders, 211 rotation axis, 212 leakproof doors, 22 partitions, 23 ink storing chamber,24 second ink outlet ports, 241 strainers, 25 air pressure double-beat drop valves, 26 ventholes, 27 pouring ink holes, 271 injection-tubes, 28 information indicator lights, 29Level switch, 3 mobile doorframes, 4 mobile doors, 5 ventilation openings, 6 sealing covers, 7 first telescopic rods, 8 first cylinders, 9 control devices,91 second outline borders, 92 controllers, 93 humidity sensors, 94 Minitype air humidifiers, 95 moisture exhausting ports, 10 controlled atmosphere devices, 101 thirdsOutline border, 102 minipumps, 103 vacuum pumping pumps, 104 draft hood, 11 handle, 12 mobile sliding blocks, 13 first ink outlet ports, 14 spraysHead, 15 second telescopic rods, 16 second cylinders, 17 first limited blocks, 18 second limited blocks.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, completeSite preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every otherEmbodiment shall fall within the protection scope of the present invention.

Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: a kind of ink storage dress of improved cartridge of ink-jet printerIt sets, including print cartridge 1, the bottom of the inner cavity of print cartridge 1 is fixedly connected with ink storage device 2, and ink storage device 2 includes the first outline border 21, theThe inner cavity of one outline border 21 is provided with ink storing chamber 23 by partition 22, is conducive to effectively tie the advantages of integral type and Split type ink boxIt is combined.The center on the surface of the bottom of ink storing chamber 23 offers the second ink outlet port 24, the upper table of the second ink outlet port 24Face is covered with strainer 241.The middle position at the top of the inner cavity of ink storing chamber 23 is fixedly connected with air pressure double-beat drop valve 25, can pass throughAir pressure double-beat drop valve 25 adjusts speed out of ink, the surface at the top of the ink storing chamber 23 and surface for being located at air pressure double-beat drop valve 25 offersVenthole 26, the surface of the side at the top of ink storing chamber 23 offer pouring ink hole 27, and the inner surface of pouring ink hole 27 is threadedly coupledThere is injection-tube 271, when the ink in ink storing chamber 23 is finished, passes through pouring ink hole 27 into ink storing chamber 23 using injection-tube 271Ink needed for injection.The surface at the top of ink storing chamber 23 and the side of pouring ink hole 27 is provided with information indicator light 28, it canIndicate the corresponding indoor ink color of ink storage, the top of the inner cavity of ink storing chamber 23 and close to the side of information indicator light 28Surface is provided with level switch 29, and level switch 29 and information indicator light 28 are electrically connected, when level switch 29 detectsIt when being below or above setting value to the ink in ink storing chamber 23 and converts the signal to electric signal and is sent in controller 92, at this timeController 92 controls the flashing of information indicator light 28 to prompt user to add into ink storing chamber or stop adding ink.Ink storing chamber 23Inner cavity two sides surface, and the position concordant with the lower surface of air pressure double-beat drop valve 25 is rotatably connected to by rotation axis 211Leakproof door 212 controls the rotation of two panels leakproof door 212 to horizontal position to protect using controller 92 when installing and dismounting print cartridge 1Closed state is held, can then be effectively prevent in ink storing chamber 23 when ink storing chamber 23 is in heeling condition using leakproof door 212 at this timeInk outflow can not only prevent ink from wasting but also can prevent ink from leaking to damaging printer in printer.The front and the back side of print cartridge 1Top respectively symmetrically offer mobile doorframe 3, the surface of mobile doorframe 3 slidably connects mobile door 4, the front of mobile door 4Middle position be fixedly connected with handle 11, convenient for adding ink into print cartridge 1.The top on the surface of the two sides of the inner cavity of print cartridge 1Portion respectively symmetrically offers ventilation opening 5, and the surface of ventilation opening 5 slidably connects sealing cover 6, and sealing cover 6 is set with 5 surface of ventilation openingIt is equipped with gasket, the surface of the one end of sealing cover 6 far from mobile doorframe 3 is fixedly connected with the first telescopic rod 7, the first telescopic rod 7The surface of one end far from sealing cover 6 is fixedly connected with the first cylinder 8, and the surface of the first side of the cylinder 8 far from handle 11It is fixedly connected between print cartridge 1, when not using print cartridge 1, controls the first cylinder 8 using controller 92 and uphold, to drive closeCapping 6 moves up so that ventilation opening 5 is kept closed, then print cartridge 1 is in sealing state at this time, prevents the moisture in ink from steamingHair.The surface of the side of the inner cavity of print cartridge 1, and the underface for being located at the first cylinder 8 is fixedly connected with control device 9, control dressSetting 9 includes the second outline border 91, and the side of the bottom of the inner cavity of the second outline border 91 is fixedly connected with controller 92, the second outline border 91The surface of the bottom of inner cavity, and one end far from controller 92 is fixedly connected with Minitype air humidifier 94, and miniature air addsThe moisture exhausting port 95 of wet device 94 runs through the second outline border 91 and extends to the outside of the second outline border 91, the bottom of the inner cavity of the second outline border 91The middle position on surface be provided with humidity sensor 93, controller 92 and Minitype air humidifier 94, Minitype air humidifierIt is electrical connected between 94, humidity sensor 93 and Minitype air humidifier 94, real-time monitoring can be controlled by controller 92Humidity in print cartridge 1 makes it remain suitable humidity environment, further effectively ink is avoided to harden, is conducive to extend itService life prevents that ink is caused to waste.The bottom of print cartridge 1 close to the outer surface of the side of control device 9 is provided with controlled atmosphere dress10 are set, controlled atmosphere device 10 includes third outline border 101, and the bottom of the inner cavity of third outline border 101 is fixedly connected with minipump102, minipump 102 is communicated with vacuum-pumping tube 103 at the top of the surface of the side of print cartridge 1, and vacuum-pumping tube 103 is separateOne end of minipump 102 is connected with draft hood 104, and vacuum-pumping tube 103 runs through print cartridge 1 and extends to the inside of print cartridge 1,When needing to print out of ink, it is evacuated using minipump 102 so that being in negative pressure state, the at this time outer air pressure of print cartridge 1 in print cartridge 1Greater than air pressure inside, since pressure difference makes acceleration out of ink.The two sides of the bottom of the outer surface of print cartridge 1 are respectively symmetrically and fixation connectsIt is connected to mobile sliding block 12, the center on the surface of the mobile one end of sliding block 12 far from control device 9 is fixedly connected with second and stretchesThe surface of contracting bar 15, the one end of the second telescopic rod 15 far from mobile sliding block 12 is fixedly connected with the second cylinder 16, the second cylinder 16It is connected between ink-jet printer, when needing to 23 Nei Jiamo of ink storing chamber, controls the second cylinder 16 using controller 92 and stretchIt opens and mobile sliding block 12 is driven to move forward, so that print cartridge 1 is automatically moved out out of printer, made accidentally when avoiding artificially extracting outIt is damaged at printer part.One end of mobile sliding block 12 close to the second cylinder 16 is fixedly connected with the first limited block 17, mobile door 4It is erected on two mobile doorframes 3, and mobile door 4 is fixedly connected with the second limited block 18 close to one end of the second cylinder 16.Print cartridge 1Outer surface bottom transversal centerline location on offer the first ink outlet port 13, the lower surface of the first ink outlet port 13Middle position is laterally homogeneous to be provided with spray head 14, and the ink flowed out by the second ink outlet port 24 is sprayed through the first ink outlet port 13 from spray head 14Realize print job out.

In use, controlling the rotation of two panels leakproof door 212 to water using controller 92 when installing print cartridge 1 for printerProsposition is set to be kept closed, and can then effectively prevent storing up using leakproof door 212 when ink storing chamber 23 is in heeling condition at this timeInk outflow in ink chamber 23 can not only prevent ink from wasting but also can prevent ink from leaking to damaging printer in printer.Work as water levelDetector 29, which detects when the ink in ink storing chamber 23 is below or above setting value and converts the signal to electric signal, is sent to controlIn device 92 processed, controller 92 controls the flashing of information indicator light 28 to prompt user that addition is added or stopped into ink storing chamber at this timeInk controls the extension of the second cylinder 16 first with controller 92 and drives mobile slide when needing to fill ink into ink storing chamber 23Block 12 moves forward, so that print cartridge 1 is automatically moved out out of printer, causes printer part when avoiding artificially extracting out accidentallyDamage, then hold handle 11 and slowly pull mobile door 4 forward, after opening mobile door 4, pass through pouring ink hole 27 using injection-tube 271Required ink is injected into ink storing chamber 23, when printer work, controller 92 opens minipump 94, so that print cartridge 1Interior to be in negative pressure state, the outer air pressure of print cartridge at this time is greater than air pressure inside, since pressure difference makes acceleration out of ink, in ink storing chamber 23The ink that ink is flowed out by the second ink outlet port 24 sprays from spray head 14 through the first ink outlet port 13 and realizes print job, when for a long timeWhen without using print cartridge 1, the first cylinder 8 is controlled using controller 92 and is upheld, to drive sealing cover 6 to move up so that ventilation opening 5 is protectedClosed state is held, then print cartridge 1 is in sealing state at this time, prevents the moisture in ink from evaporating, while humidity sensor 93 monitorsWhen being less than setting value to the humidity in print cartridge 1, controller 92 controls Minitype air humidifier 94 and opens at this time, so that in print cartridge 1It remains suitable humidity environment, further effectively ink is avoided to harden, be conducive to extend its service life, and can anti-major structureIt is wasted at ink.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a realityBody or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operationIn any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended toNon-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including thoseElement, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipmentIntrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded thatThere is also other identical elements in the process, method, article or apparatus that includes the element ".

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be withA variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understandingAnd modification, the scope of the present invention is defined by the appended.

Claims (10)

1. a kind of ink storage device of improved cartridge of ink-jet printer, including print cartridge (1), it is characterised in that: the print cartridge(1) bottom of inner cavity is fixedly connected with ink storage device (2), and the top at the positive and back side of the print cartridge (1) is respectively symmetricallyIt offers mobile doorframe (3), the surface of the mobile doorframe (3) slidably connects mobile door (4), the mobile door (4)Positive middle position be fixedly connected with handle (11), the top on the surface of the two sides of the inner cavity of the print cartridge (1) differenceIt symmetrically offers ventilation opening (5), the surface of the ventilation opening (5) slidably connects sealing cover (6), the sealing cover (6)The surface of one end far from mobile doorframe (3) is fixedly connected with the first telescopic rod (7), and first telescopic rod (7) is far from closeThe surface for covering the one end of (6) is fixedly connected with the first cylinder (8), and the one of first cylinder (8) separate handle (11)It is fixedly connected between the surface of side and print cartridge (1), the surface of the side of the inner cavity of the print cartridge (1), and is located at the first cylinder(8) it is fixedly connected with immediately below control device (9), outer surface of the print cartridge (1) close to the side of control device (9)Bottom is provided with controlled atmosphere device (10), and the two sides of the bottom of the outer surface of the print cartridge (1) respectively symmetrically and are fixedly connected withThe center of mobile sliding block (12), the surface of the one end of the mobile sliding block (12) far from control device (9) is fixedly connectedHave the second telescopic rod (15), the surface of the one end of second telescopic rod (15) far from mobile sliding block (12) is fixedly connected with theTwo cylinders (16) are connected between second cylinder (16) and ink-jet printer, and the mobile sliding block (12) is close toOne end of two cylinders (16) is fixedly connected with the first limited block (17), in the transverse direction of the bottom of the outer surface of the print cartridge (1)It is offered on line location the first ink outlet port (13), the middle position of the lower surface of first ink outlet port (13) is lateralIt is evenly arranged with spray head (14).

2. a kind of ink storage device of improved cartridge of ink-jet printer according to claim 1, it is characterised in that: describedInk storage device (2) include the first outline border (21), the inner cavity of first outline border (21) is provided with ink storage by partition (22)Room (23), the center on the surface of the bottom of the ink storing chamber (23) offer the second ink outlet port (24), the ink storageThe middle position at the top of the inner cavity of room (23) is fixedly connected with air pressure double-beat drop valve (25), the top of the ink storing chamber (23)Surface and be located at air pressure double-beat drop valve (25) right above offer venthole (26), the side at the top of the ink storing chamber (23)Surface offer pouring ink hole (27), the surface at the top of the ink storing chamber (23) and far from pouring ink hole (27) side be arrangedHave information indicator light (28), the top of the inner cavity of the ink storing chamber (23) and close to the surface of the side of information indicator light (28)It is provided with level switch (29).

3. a kind of ink storage device of improved cartridge of ink-jet printer according to claim 1, it is characterised in that: describedControl device (9) include the second outline border (91), the side of the bottom of the inner cavity of second outline border (91) is fixedly connected withController (92), the surface of the bottom of the inner cavity of second outline border (91), and one end far from controller (92) are fixed to be connectedIt is connected to Minitype air humidifier (94), and the moisture exhausting port (95) of the Minitype air humidifier (94) runs through the second outline border (91)And the outside of the second outline border (91) is extended to, the middle position setting on the surface of the bottom of the inner cavity of second outline border (91)There are humidity sensor (93).

4. a kind of ink storage device of improved cartridge of ink-jet printer according to claim 1, it is characterised in that: describedControlled atmosphere device (10) include third outline border (101), the bottom of the inner cavity of the third outline border (101) is fixedly connected with miniatureVacuum pump (102), the minipump (102) are communicated with vacuum-pumping tube at the top of the surface of the side of print cartridge (1)(103), the vacuum-pumping tube (103) is connected with draft hood (104) far from the one end of minipump (102), and describedVacuum-pumping tube (103) runs through print cartridge (1) and extends to the inside of print cartridge (1).

5. a kind of ink storage device of improved cartridge of ink-jet printer according to claim 1, it is characterised in that: describedMobile door (4) be erected on two mobile doorframe (3), and mobile door (4) are fixedly connected with close to the one end of the second cylinder (16)Second limited block (18).

6. a kind of ink storage device of improved cartridge of ink-jet printer according to claim 2, it is characterised in that: describedThe upper surface of the second ink outlet port (24) be covered with strainer (241).

7. a kind of ink storage device of improved cartridge of ink-jet printer according to claim 2, it is characterised in that: describedInk storing chamber (23) inner cavity two sides surface, and the position concordant with the lower surface of air pressure double-beat drop valve (25) passes through rotation axis(211) leakproof door (212) are rotatably connected to.

8. a kind of ink storage device of improved cartridge of ink-jet printer according to claim 1, it is characterised in that: describedSealing cover (6) and ventilation opening (5) surface be provided with gasket.

9. a kind of ink storage device of improved cartridge of ink-jet printer according to claim 3, it is characterised in that: describedController (92) and humidity sensor (93), Minitype air humidifier be electrical connected between (94).

10. a kind of ink storage device of improved cartridge of ink-jet printer according to claim 2, it is characterised in that: instituteThe inner surface for the pouring ink hole (27) stated is threaded with injection-tube (271).