• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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  • 优先权
    • 专利摘要:
    The present invention relates to an ink cartridge, an ink filling method and apparatus. The one-way valve is disposed in the ink chamber of the ink cartridge and has a leg support portion, a wallpaper portion protruding obliquely from the inside of the leg support portion, a jaw support portion curved toward the inside of the wallpaper portion, and a through hole and protruding from the jaw support portion. It includes a head support. The valve seal assembly is adapted to selectively contact the head support by the pressure difference through the through hole. The seal assembly in which the block portion is formed integrally is disposed at the ink discharge port. The cartridge is very sensitive to pressure changes to improve print quality. At the same time, the seal assembly of the cartridge has improved seal function in the non-use state as well as in the use state.
    公开号:KR20020097207A
    申请号:KR1020027012784
    申请日:2001-02-28
    公开日:2002-12-31
    发明作者:씨아오킹저；리유
    申请人:추하이의 유니콘 이미지 프로덕츠 컴퍼니 리미티드；
    IPC主号:
    专利说明:

    INK CARTRIDGE, INK FILLING METHOD AND APPARATUS USED THEREOF}
    [3] Usually, in inkjet printers, it is necessary to keep the ink tank interior at a suitable negative pressure. Chinese patent publication 1185379A discloses an apparatus (shown in FIG. 1) used to maintain an ink tank at a negative pressure condition. An ink 12 and a porous body 14 such as a foam material absorbing ink are provided in the ink tank 10. The surface tension of the ink serves to leave the ink in the cells or voids of the porous body. However, the volumetric efficiency of using a porous body is only 60-65%. Thus, the design of such a structure is inefficient than required.
    [4] U.S. Patent No. 4,677,447 to Nielsen discloses the use of the ink tank 20 and check valve 22 to control the flow of ink as shown in FIG. An elastic umbrella diaphragm 22 selectively seals the hole 25. In operation, negative pressure acts on the diaphragm valve to cause ink 24 to flow from its storage tank into a small cavity 26 adjacent to the nozzles of the thermal inkjet print head. Check valves of this structure, however, cannot prevent bubble generation. These bubbles are trapped in the cavity 26 and expand or contract in response to changes in pressure or temperature to prevent ink from exiting the cavity. As the bubble expands or contracts as described above, the ink is forced out of the small cavity through the nozzles, so that ink leakage occurs through the nozzle of the print head.
    [5] Chinese patent publication CN1133784A discloses a funnel-shaped packing member 100 having a through hole formed as shown in FIG. 3A. The packing member is also provided with an inclined surface 102 that engages the needle 104 to allow ink to be supplied to the associated printing devices. In order to prevent the ink from leaking, an additional seal film 106 is required at the ink supply port, which leads to an increase in manufacturing cost.
    [6] The ink cartridge disclosed in US Pat. No. 5,790,158 has a seal-shaped O-ring 120 as shown in FIG. 3B. This seal structure works well but also requires additional seal film 124 outside the chamber 122 for transportation.
    [7] U. S. Patent No. 5,949, 458 discloses a seal member 130 as shown in FIG. 3C. The seal member 130 is integrally formed with a sealable diaphragm 132, and in use, the diaphragm is sometimes tough and not easily torn.
    [8] The seal structure described above requires the seal film to be bonded to the outer surface of the ink cartridge to prevent ink leakage upon insertion of the ink supply garlic, and also requires a sealed package when the cartridge is not in use and during transportation. Shall be.
    [9] BACKGROUND OF THE INVENTION Methods for mass production of ink cartridges and methods for efficiently filling ink in cartridges for improved productivity are known.
    [10] U. S. Patent No. 5,280, 299 discloses an ink cartridge using the porous body shown in FIG. 4 and an ink filling method as shown in FIG. The porous body 14 is disposed in a tank, and the tank is attached to a print head. A method of filling ink in an ink cartridge is shown in FIG. That is, the first step P1 of providing an empty ink cartridge, the second step P2 of inserting the porous body into the tank, the third step P3 of sealing the inlet for the porous body of the tank, the fourth checking of leakage Step P4, the fifth step P5 of reducing pressure, the sixth step P6 of filling ink, the seventh step P7 of removing residual ink, the eighth step of sealing the outlet of liquid ink Is done.
    [11] The method described above however is difficult to work with. There is some space or gap between the inside of the ink cartridge and the porous body so that the so-called "freely flowable ink" is accommodated. The above "freely flowable ink" may eventually leak from the cartridge, and such residual ink needs to be removed. However, since the "freely flowable ink" is not stored or located in the same place, the location of "freely flowable ink" differs depending on the ink cartridge. In particular, the "freely flowable ink" is not always located near the liquid ink inlet, but also deep within the cartridge. In this case, it is difficult to remove the "freely flowable ink", and the liquid ink stored in the porous body to be removed as the "freely flowable ink" causes a change in the total ink inflow as well as the ink distribution in the porous material.
    [12] It is noted that the operation of removing this "freely flowable ink" is performed in the print head. Liquid ink is filled in the vicinity of the ink print head, and "freely flowable ink" from the other side of the cartridge can be removed like stored ink, resulting in a lack of liquid ink during operation.
    [13] As described above, the process of filling ink in the porous body of the ink cartridge is difficult, and it is difficult to remove "freely flowable ink". Since the porous body occupies some of the ink cartridge spaces, a portion of the ink remains in the porous body even after the printing process, thereby limiting the amount of liquid ink provided by the ink cartridge and eventually causing an increase in cost.
    [14] Therefore, there is a need for an improved ink cartridge, ink filling method and apparatus that solves the above problems of the prior art.
    [1] The present invention relates to an ink cartridge for storing and supplying liquid ink for use in an inkjet head or a printer head. In particular, the present invention relates to a cartridge having a one-way valve for controlling ink supply to a print head, and including a seal member integrally formed with a seal portion and a block portion.
    [2] The present invention also relates to an apparatus and a filling method for filling ink in an ink cartridge, using a positive pressure difference or a negative pressure difference to fill ink in a cartridge, and employing a one-way valve for controlling ink flow.
    [71] 1 is a schematic cross-sectional view showing a conventional ink cartridge using foam material in a cartridge.
    [72] 2 is a schematic cross-sectional view of a prior art ink cartridge with a preloaded check valve.
    [73] 3A is a cross-sectional view showing an example of a funnel-shaped seal member.
    [74] 3B is a cross-sectional view showing an O-ring as an example of a seal member.
    [75] 3C is an exemplary cross-sectional view of a seal member provided with a septum;
    [76] 4 is a cross-sectional view of an ink cartridge in which a foam material is used, with "freely flowable ink" between the ink chamber and the foam material.
    [77] 5 is a process chart showing an ink filling process for filling the ink cartridge of FIG.
    [78] Figure 6 is a cross-sectional view of the one-way, bellows valve in accordance with the present invention.
    [79] Fig. 7A is a sectional view of the ink cartridge according to the first embodiment of the present invention.
    [80] Fig. 7B is a sectional view schematically showing operation of the ink cartridge according to the first embodiment of the present invention.
    [81] 8 is a cross-sectional view of the ink cartridge according to the second embodiment of the present invention, showing that the spring is in contact with the bellows valve.
    [82] 9 is a cross-sectional view of the ink cartridge according to the third embodiment of the present invention, having a separate valve holding member.
    [83] Fig. 10 is a cross-sectional view of the ink cartridge according to the fourth embodiment of the present invention, in which the air vent has a porous body and a protruding valve fixing member to prevent ink leakage.
    [84] 11 is a cross sectional view of the ink cartridge having a cylindrical valve element to prevent ink leakage from the air vent;
    [85] 12A is an enlarged cross sectional view of the cylindrical valve of FIG.
    [86] 12B is a sectional view of the cylindrical valve member of FIG. 12A.
    [87] Fig. 13 is a sectional view of the ink cartridge showing the ball valve element preventing ink from leaking through the air vent.
    [88] 14 is an enlarged cross-sectional view of the ball valve of FIG.
    [89] Fig. 15 is a sectional view of a preferred embodiment of the present invention including a seal member provided in the ink supply confinement, an inclined bottom, and a U-shaped tube.
    [90] 16A is a cross-sectional view of a preferred embodiment of the present invention having an elastic bag connected to an air vent to prevent ink leakage.
    [91] 16B is a schematic cross-sectional view of the bag retaining cap of FIG. 16A.
    [92] Figure 16C is a schematic side view of the elastic bag of Figure 16A.
    [93] Fig. 16D is a plan view of the elastic bag of Fig. 16A.
    [94] Fig. 16E is a schematic cross sectional view of the ink cartridge showing the labyrinth grooves formed in the cover and the ink guide ribs at the bottom;
    [95] Fig. 16F is a plan view of a lid of the ink cartridge provided with the air induction film covering the labyrinth grooves formed in the lid.
    [96] FIG. 17 is a cross-sectional view of the ink cartridge showing the membrane connected to the cover with the air vent disposed in the cover; FIG.
    [97] Fig. 18A is a sectional view of the ink cartridge showing that the bellows-like member is connected to the lid in a relaxed state.
    [98] Fig. 18B is a sectional view of the ink cartridge of 18A with the bellows member connected to the lid in an operating state.
    [99] 18C is a sectional view of the bellows-like member of FIG. 18A.
    [100] 19A-19E are cross-sectional views of modifications of the seal member provided at the ink supply port provided at the discharge port of FIG. 15;
    [101] 20A is a sectional view of a seal member of a modification formed integrally with a ball type block portion;
    [102] Fig. 20B is a sectional view of the ball type block portion of Fig. 20A separated from the seal member upon insertion of the printer needle;
    [103] Fig. 21A is a sectional view of a seal member of a modification formed integrally with the cylindrical block portion;
    [104] FIG. 21B is a sectional view of the cylindrical block portion of FIG. 21A separated from the seal member upon insertion of the printer needle; FIG.
    [105] Fig. 22 is a sectional view of the seal member of the present modification with the surface inclined inwardly;
    [106] Fig. 23A is a cross sectional view of a preferred embodiment of a connection having a uniform thickness, provided integrally with a seal member.
    [107] Fig. 23B is a sectional view of a modification of the connecting part having a different thickness, provided integrally with the seal member.
    [108] 24 is a sectional view of a seal member according to a modification.
    [109] 25A-25B are perspective views of a package seal for sealing an ink cartridge during shipping and handling.
    [110] Fig. 26 is a schematic perspective view of the ink filling apparatus of the present invention filled under negative pressure.
    [111] Figure 27 is a perspective view of the ink filling apparatus of another embodiment of the present invention filled under negative pressure.
    [112] Figure 28 is a perspective view of the ink filling apparatus of another embodiment of the present invention filled under negative pressure.
    [113] Fig. 29 is a perspective view of the ink filling apparatus of the present invention filled under negative pressure.
    [15] It is an object of the present invention to provide an ink cartridge of a simple structure which is easy to handle, simple to manufacture, has high mechanical strength, does not mix air with liquid ink supplied from an ink cartridge, and does not leak ink from the cartridge.
    [16] It is also an object of the present invention to provide an ink cartridge having a one-way valve actuated with respect to the ink supply port to control the ink flow. The present invention provides a stepped one-way valve that is adapted to be easily modified.
    [17] It is also an object of the present invention to provide an ink cartridge in which the discharge port is sealed by a seal member in which the seal portion and the block portion are integrally formed. The seal member preferably seals the cartridge during the insertion operation of the printer needle and during transportation.
    [18] It is also an object of the present invention to provide a method of filling liquid ink into an ink cartridge by a one-way valve under negative pressure. The present invention provides an apparatus for filling ink into a cartridge, wherein the needle is used to evacuate air to fill the ink at a predetermined level.
    [19] It is yet another object of the present invention to provide a method of filling ink in an ink cartridge having a one-way valve to store liquid ink and to control the flow thereof.
    [20] An ink cartridge for an inkjet recording apparatus according to the present invention includes an ink receiving cartridge body provided with at least one ink chamber,
    [21] The cartridge body controls at least one vent for providing a flow path between the ink chamber and the outside air, at least one ink outlet for supplying ink from the ink chamber, at least one seal member provided at the ink outlet, and ink flow. At least one one-way valve disposed in the ink chamber,
    [22] The one-way valve includes a leg support for sealing the inner wall of the ink outlet, a wall support protruding from the inside of the leg support, a jaw support curved toward the inside of the wall support, a head support protruding from the jaw support having a through hole, and And a valve seal assembly for closing the through hole of the head support.
    [23] According to the ink cartridge of the present invention, the wall support protrudes obliquely from the leg support.
    [24] According to the ink cartridge of the present invention, the jaw support is formed with a groove formed in the curved wall support.
    [25] According to the ink cartridge of the present invention, the head support portion protrudes obliquely from the jaw support portion.
    [26] According to the ink cartridge of the present invention, the head support is made conical.
    [27] According to the ink cartridge of the present invention, the inclination angle of the head support portion is determined to be larger than the inclination angle of the wallpaper paper portion.
    [28] According to the ink cartridge of the present invention, the thickness of the leg support is made larger than the thickness of the head support, and the thickness of the head support is made larger than the thickness of the jaw support.
    [29] Further, according to the ink cartridge of the present invention, grooves are formed in the inner wall of the ink outlet for accommodating the valve.
    [30] According to the ink cartridge of the present invention, the groove also includes a stepped circular portion formed at the bottom of the groove for receiving the filter member.
    [31] According to the ink cartridge of the present invention, the head support of the one-way valve is in a state of being slightly pressed with the valve seal assembly.
    [32] According to the ink cartridge of the present invention, ink leakage preventing means is disposed in the air vent to prevent the ink from leaking from the air vent.
    [33] According to the ink cartridge of the present invention, the ink leakage preventing means is a protrusion extending outwardly from the air vent to the ink chamber.
    [34] According to the ink cartridge of the present invention, the ink leakage preventing means is a curved tube surrounding the periphery of the air vent, one end of which is connected to the air vent and the other end of which is disposed on the ink side.
    [35] According to the ink cartridge of the present invention, the ink leakage preventing means is a bag-shaped member disposed in the ink chamber, the open end of which is connected to an air vent and a small hole is formed in the wall of the bag-shaped member. .
    [36] According to the ink cartridge of the present invention, the bag-shaped member is an elastic balloon.
    [37] According to the ink cartridge of the present invention, the bowl-shaped cap for fixing the elastic mechanism includes a through hole, the through hole having a relatively wide end adapted to engage the outer periphery of the projection of the air vent, It consists of a relatively narrow end that acts as an extended part and a jaw to which the open end of the resilient instrument is mounted.
    [38] According to the ink cartridge of the present invention, the bottom of the ink chamber is inclined to the ink discharge port.
    [39] According to the ink cartridge of the present invention, an ink guide groove is formed in the bottom surface of the ink chamber.
    [40] According to the ink cartridge of the present invention, a protrusion is formed at the bottom of the ink chamber to prevent the bag-shaped member from interfering with the opening of the valve seal member.
    [41] According to the ink cartridge of the present invention, the open end of the bag-shaped member has a hole equal to the wall dimension of the cartridge body in which the air vent is formed.
    [42] According to the ink cartridge of the present invention, the bag-shaped member has a plurality of overlapped layers.
    [43] According to the ink cartridge of the present invention, the air vent is in communication with the outside air through an air guide vent formed in the wall of the cartridge body.
    [44] According to the ink cartridge of the present invention, a part of the air guide vent is disposed on the inner side of the wall.
    [45] According to the ink cartridge of the present invention, an air induction film is provided on the outer side of the wall provided with the air vent.
    [46] According to the ink cartridge of the present invention, an ink filling hole is formed in the wall of the cartridge body and sealed by a seal plug.
    [47] According to the ink cartridge of the present invention, the seal member provided in the ink discharge port is formed integrally inside the chamber and supported by the inner wall of the ink discharge port, a seal portion protruding from the support portion, a block portion connected to the seal portion, A connecting portion surrounding the seal portion and the block portion, the connecting portion supporting a block portion separated from the connecting portion at a predetermined pressure.
    [48] According to the ink cartridge of the present invention, the sealing member is provided with an inclined surface in the inward direction.
    [49] According to the ink cartridge of the present invention, a circular groove for arranging the support portion of the seal assembly is provided so that the block portion facilitates separation of the block portion from the seal member.
    [50] According to the ink cartridge of the present invention, the thickness of the connecting portion is made different.
    [51] According to the ink cartridge of the present invention, the thickness of the connection portion is reduced from one side to the other side.
    [52] According to the ink cartridge of the present invention, a gas exhaust vent is provided on the wall of the ink outlet.
    [53] The one-way valve for controlling the ink flow includes a leg support, a wall support protruding from the inside of the leg support, a jaw support curved toward the inside of the wall support, and a head support protruding from the jaw support formed with the through hole.
    [54] According to the one-way valve of the present invention, the jaw support is provided with a groove formed by an inwardly curved wall support.
    [55] According to the one-way valve of the present invention, the head support portion protrudes obliquely from the jaw support portion.
    [56] According to the one-way valve of the present invention, the thickness of the leg support is greater than the thickness of the head support, and the thickness of the head support is greater than the thickness of the jaw support.
    [57] The method of filling ink into an ink cartridge includes sealing the ink cartridge, creating negative pressure in the space by introducing air into both the ink chamber and the ink guide space, and filling a predetermined amount of ink in the ink cartridge. It includes the steps.
    [58] According to the method for filling ink in an ink cartridge of the present invention, the method includes penetrating into a gas exhaust vent of a wall of an ink guide space formed by a seal assembly and a one-way valve, and inserting a drawing needle into the gas exhaust vent. Steps.
    [59] According to the method for filling ink in the ink cartridge of the present invention, the method further includes the step of taking out the drawing needle from the gas exhaust vent when the air pressure reaches a preset value.
    [60] The filling device for filling ink in the ink cartridge includes an air vent for fluid connection between the ink chamber and the outside air, an ink supply port for supplying ink from the ink chamber, a seal member disposed at the ink discharge port for the seal, and ink. And a one-way valve disposed at the bottom of the ink tank and connected with a valve seal member for closing the through hole of the head support, to form an ink guide space together with the seal member to control the flow thereof. A sealing pressurization device, an ink supply container, an ink filling needle inserted into the ink cartridge and connected to the ink supply container through a tube, a controller for controlling the flow of ink from the ink supply container to the ink cartridge, an air pump, and one side of the Is connected to the air pump and the other end is inserted into the vent for gas exhaust of the ink cartridge. Is separated in the needle, the ink filling needle and a flow control tube and the flow control valve between the valve and the tube between the ink supply container is configured to characterized in that it includes two of the valve is arranged.
    [61] A method of filling ink in an ink cartridge includes inserting an ink supply needle connected to an ink supply container into an ink supply port of the ink cartridge, and filling a predetermined amount of ink in the ink cartridge through a negative pressure pump. .
    [62] The ink filling method also penetrates the gas exhaust vent into the wall of the ink guide space formed by the one-way valve and the valve seal assembly, inserts a needle connecting to the negative pressure forming pump, and inserts a negative pressure into the gas exhaust vent. And exhausting air from the ink guide space of the ink cartridge to separate the one-way valve from the valve seal assembly such that ink is led to the ink guide space by the pressure difference.
    [63] The ink filling method according to the present invention further includes sealing the ink filling port.
    [64] According to the present invention, the space in which the liquid can be accommodated is very small between the valve and the seal member to prevent the occurrence of bubbles.
    [65] According to the present invention, bubble generation is prevented because the ink accommodating space or the ink induction chamber is formed so small that air trapped in the ink induction chamber can be removed by a cleaning action during printer operation.
    [66] Further, according to the present invention, the liquid ink is filled in the ink receiving space from the tank to continue printing as the one-way valve acts in response to a very small pressure difference, so that the one-way valve is used for a wide pressure range. consist of. The ink in the cartridge can be used completely, the manufacturing cost of the ink cartridge is reduced, the ink filling method is simple and the working efficiency is improved.
    [67] The ink cartridge according to the present invention is also prevented from leaking ink.
    [68] The ink cartridge according to the present invention is configured such that the seal portion can withstand any force and engages the needle when the ink supply needle is inserted.
    [69] The ink cartridge according to the present invention is also very easy to assemble the seal member, the manufacturing cost is low because the seal portion is made integral with the support portion, seal portion, block portion and connecting portions.
    [70] The invention will be better understood from the accompanying drawings and the following description of the preferred embodiments of the invention.
    [114] 7A is a first embodiment of the present invention. The valve 30 selectively closes the hole 332 to separate the ink in the ink chamber 402 from the ink outlet 404.
    [115] In Fig. 6, the bellows valve 30 is preferably formed of a rubber having a Shore hardness angle of 30 ° -40 °, and the bellows shape is preferably a truncated cone shape in which the upper end of the conical shape is cut off. The bellows valve includes a leg support 310, which is supported and contacted by the inner wall of the ink chamber 402 adjacent the outlet 404 as shown in FIG. 7A. The leg support portion 310 is inclined upward along the wallpaper portion 322 and is reduced in thickness. That is, as the bellows valve converges from the leg support toward the jaw support 324, the wall is inclined inward with decreasing cross-sectional thickness. In the jaw support 324, the bellows valve is bent into the curved portion 325 in the opposite direction, the jaw support 324 is converged into the support extending inwardly, the support is a groove for supporting the head 330 To form. Holes 332 are formed in the head portion. The jaw support part 324 is curved inward along the wallpaper paper part 322 for supporting it. The shape of the bellows valve controls and adjusts the flow of ink to the outlet 404 in response to minute pressure differentials.
    [116] When the printer is operating, pressure differentials are generated on both sides of the valve in the direction indicated by the arrows at 7B, causing the valve to deform. The wallpaper paper portion 322 is bent in a recessed shape to the inside of the jaw support portion 324 to ensure that the support head portion 330 moves in response to a small pressure change. The shape of the jaw support 324 is such that a slight pressure change affects the head support 330. Therefore, the shape of the jaw support 324 provides sensitive pressure relief.
    [117] The movement of the head support 330 becomes larger when the negative pressure difference is large, thereby controlling the flow of ink and allowing the head support 330 to return to its original position more quickly. To this end, the thickness of the leg support 310 is thicker than the thickness of the jaw support 324 and the head support 330 of the valve. It will be readily appreciated that the head support 330 can respond to relatively small negative pressures, and that the thickness of the jaw support 324 is thinner than that of the head support 330. In particular, the thickness of the support portion 324 is preferably 0.15-0.5 mm. The hole 332 of the wallpaper section 322 is conical in cross section. The head support part 330 is inclined inward at an inclination angle Θ1 which is greater than the inclination angle of the leg support part 310 represented by Θ2. An equilibrium state is obtained when the inclination angle Θ1 is reduced in response to the negative pressure of the ink chamber as shown in FIG.
    [118] The bellows valve 30 is provided inside the ink cartridge 40 to receive liquid ink and to control ink flow. In FIG. 7A, the bellows valve 30 is disposed above the outlet of the ink chamber 402, and its supporting leg is connected to the bottom 406. In order to maintain the stability of the bellows valve 30, a groove 408 is provided at the bottom of the cartridge. The valve sealing device 340 protrudes from the cartridge cover 410 to seal the support head portion 330 slightly. The preferred method is to provide an elastic diaphragm 342 that elastically seals the support head portion 330 while covering the periphery of the sealing device 340.
    [119] As the sealing device 340, various methods can be selected, such as the configuration shown in FIG. 7A, or simply fixing the sealing device to the wall 410. If desired, for example, where high stability is required, the cylinder body 416 is preferably secured over the recess 408. The valve sealing device 340 may be configured as a cylinder body having a cap and a trough 418 and fixing the valve 30 together with the valve sealing device as shown in FIG. 9. Through the trough 418, ink is supplied from the ink chamber 402 to the ink induction chamber 412. Alternatively, the valve retainer may consist of a cylindrical rod 416 extending from the wall of the ink tank.
    [120] As shown in FIG. 7A, the ink induction chamber 412 may consist of a groove 408 and a bellows valve 30 in the wall of the ink tank 406, where the diameter of the groove is the support leg 310. It is formed smaller than the diameter of. The ink induction chamber 412 is prefilled with ink, and the head of the printer is filled with sufficient ink for a print job. The needle 50 of the print head is inserted into the outer end of the ink discharge hole through the elastic sealing member 52. A negative pressure is formed in the ink induction chamber 52 during the printing operation, and a pressure difference is generated between the ink chamber and the ink induction chamber. When the pressure difference reaches a predetermined level, for example 120 mm water, the head support 330 of the bellows valve is moved downwards, and the hole 332 is opened as the valve is separated from the seal 340. Liquid ink is filled into the ink induction chamber 412 as indicated by the arrow in the figure, and ink is supplied to the print head. According to the valve 30 of the present invention, the opening pressure of the hole is -200 to 0 mm water, and the optimum opening pressure is -150 to -30 mm water.
    [121] When the print job is stopped, the bellows valve 30 returns to the initial position to control the ink flow from the ink chamber 402.
    [122] In use, the air vents must be exposed to balance the air pressure inside and outside the cartridge. As the negative pressure in the ink chamber increases as the ink is consumed, air enters the ink chamber 402 through the air vent 414 to maintain a substantially constant negative pressure. However, ink may leak through the air vent when the ink cartridge is moved. Therefore, in order to prevent ink from leaking through the air vent 414 in this manner, the air vent 414 extends into the ink chamber by about 1/3 to 1/2 of the depth of the ink chamber 402. This prevents ink leakage through the air vents. The extended length portion of the air vent may be provided by a soft tube or rubber tube connected to the air vent 414.
    [123] The filter 56 is disposed at the ink discharge port to prevent the inflow of impurities and air from the needle, thereby improving the quality of the printer.
    [124] In FIG. 8, a spring 54 is disposed between the bellows valve and the bottom of the cartridge. The spring 54 exerts an elastic force to put the bellows valve 30 in a sealed state so that the valve sealing member 340 adjusts the pressure responsiveness. The soft tube 420 extends into the ink chamber about one third of the depth of the ink chamber to prevent the ink from leaking.
    [125] On the other hand, the air vent 414 may be configured to extend into the ink chamber 402 by about one third of the ink chamber depth as shown in FIG.
    [126] In order to prevent ink leakage, the porous body 436 is disposed in the air vent 414 to preserve or retain the ink as shown in FIG.
    [127] In order to prevent ink from leaking when the ink cartridge is removed from the printer, a one-way valve 428 is preferably disposed in the air vent 414 as shown in FIG. By joining the cylinder block 428 having the inlet 426 to the valve chamber 422, the size of the trough 430 can be increased from the end A to the end B of the cylinder block as shown in FIGS. 12A-B. have. The size of the end A of the cylinder block 428 is larger than the diameter of the air vent 414. However, by forming the size of the end B of the cylinder block 428 smaller than the inlet 426, when the ink cartridge is removed from the print head, the air vent 414 is sealed to the cylinder block 428 and a smooth flow of air is achieved. to provide. Once the one-way valve 428 is positioned in the air vent 414 to prevent ink from leaking, the ink filling hole 440 must be opened to fill the ink, and then the hole 44 must be sealed with a stopper 438. (See FIG. 11). Removing the stopper 438 in place allows the ink cartridge to be refilled in a conventional manner.
    [128] As shown in FIG. 13, a one-way valve 428 is disposed in the air vent 414 as shown in enlarged cross-sectional view in FIG. 14. One-way valve 428 is a ball-type block is supported by an elastic flap 434, the ventilation flap is formed in the elastic flap for a smooth air flow between the air vent 414 and the chamber 402.
    [129] As shown in Fig. 15, the bottom of the ink cartridge is inclined to the discharge port to guide the ink to the discharge port. The bellows valve 30 and the bellows valve sealing device 340 are disposed in the depression or groove 408. A flange 344 and a through hole 418 are formed on the bellows valve sealing device 340. Between flanges 344 coincide with step 442. The material of the U-shaped tube is corrosion resistant steel, one end of which is connected to the air vent 414, the other end of which extends above the liquid ink level and is located inside the fixed trough 446. A round trough 444 is formed near the outlet at the bottom of the recess 408. A mesh filter 56 is joined to the bottom of the round trough 444 to prevent impurities and bubbles from entering the outlet 404. Seal portion 52 integrated with block 526 seals the ink outlet 404.
    [130] The rubber hardness of the seal assembly is 25 ° -65 ° Shore, preferably 30 ° -55 °, so as to constantly supply ink. Preferred materials are selected from SBR, EPM, EPDM, QNXLF FJQJ, chloroprene rubber, urethane rubber, ethylene rubber, acrylic rubber and SBP rubber and the like.
    [131] As can be seen in FIG. 18B, the fixing cap 490 is in the form of a bowl with a chamber 494, an annular jaw 492 and a hole 496 in the center.
    [132] As can be seen in Figures 16A, 16C and 16D, the air vent 414 is located in the center of the top cap 410 of the ink cartridge. Fixing cap 490 covers the air vent. The instrument 450 is mounted in a hole 452 in the jaw 492 of the fixing cap 490. The hole 496 is connected to the air vent 414 to form an extension of the air vent 414. A hole 454 formed in the wall of the instrument 450 is made by a needle of approximately 0.12 mm diameter. The diameter of the hole 452 is about 6 mm. The volume of the ball is 1.8 ml and the thickness of the instrument is about 0.1 mm. One-way valve 330 is located below hole 404. The seal cap 340 seals the hole of the one-way valve. The sealing cap of the valve has three troughs 418 such that ink flows from the ink chamber 402 into the ink induction chamber 412 below the valve 330 and through the reticulated filter 56 through the outlet 404. Allow to flow to The bottom 406 of the ink cartridge 400 has two ink recesses 469 to supply sufficient ink. In particular, when the device is inflated, the bottom of the device contacts the bottom of the ink cartridge to block the flow of ink, but sufficient ink can be supplied by providing the recess 469. In order to easily fill the ink in the ink chamber, a hole 440 is formed at the right side of the upper cap 410. When ink filling is complete, the stopper 438 covers the hole 440. The block 526 is disposed at the center of the seal member 52. When the printer is running, the needle of the print head pushes block 526 to allow ink to flow through the needle into the printer.
    [133] When the printer is in operation, the instrument 450 gradually expands to allow the ink to continue flowing. When the instrument is inflated to a certain volume, the hole 454 in the wall of the instrument is opened and air is supplied into the ink chamber to balance pressure to ensure print quality. When the printer operation is completed, the hole is closed by an elastic mechanism to prevent ink from flowing into the chamber of the apparatus. The hole 454 formed in the wall of the mechanism 450 acts as a one-way valve and opens and closes according to a printing operation. As the ambient temperature changes, the air in the ink cartridge expands as the temperature increases, thereby compressing the mechanism. As a result, the air in the mechanism is pressurized to maintain an equilibrium with the pressure in the ink cartridge to prevent ink leakage. In particular, when the ink cartridge is used up or discarded for other reasons, some ink remains in the ink cartridge, where the ink cartridge may be placed upside down. In this case, according to the present invention, when the volume of the ink cartridge is 14 ml and the temperature is raised to 30 ° C., the expansion ratio of the cartridge reaches 10% so that the air expansion reaches 1.4 ml, but the volume of the apparatus is 1.8 ml. This indicates that the expanded volume of the instrument is sufficient to offset the expanded volume of air in the ink chamber. Thus, the air expanded in the ink chamber pressurizes the air of the mechanism to be balanced with the pressure in the ink chamber, so that ink leakage can be prevented.
    [134] 16E shows a case according to a preferred embodiment of the present invention. In order to supply liquid ink, the bottom 406 of the ink chamber is inclined to the outlet 404, and when the mechanism is expanded to close the hole 418 of the valve seal device, the flow of ink is blocked. An ink guide rib 409 is provided at the bottom 406 of the ink chamber to support the instrument 450 and prevent the instrument from closing the hole 418.
    [135] A plurality of irregular maze grooves 484, 485, 486 are provided in the wall of the cartridge, each of which is connected to an air vent 414. In operation, air flows from the labyrinth groove 486 to the groove 484 and from the hole 485 into the instrument 456. Labyrinth-shaped grooves 484-486 are formed on the surface of the cover 410, and the grooves are sealed by package seals 491 and 495 for transportation as shown in Fig. 16E. Prior to use, the package seal 495 is peeled off to expose a portion of the groove. The seal film 96 is penetrated by the ink supply needle.
    [136] A circular protrusion 405 is formed in the wall of the chamber to support the seal portions 520 of the seal member 52. The inner side of the protrusion 405 meshes with the upper side 524 of the seal portions to increase rigidity, thereby facilitating separation of the block portion from the seal member.
    [137] A hole 470 is provided in the wall of the outlet for the filling process. The hole is in communication with the upper chamber of the seal portion and sealed by a stopper 472.
    [138] 17 shows another example of an apparatus for preventing ink leakage in accordance with the present invention. The ink leak prevention device is connected to the lid 410 at the inlet portion 481 of the cartridge 400 as the elastic membrane 480. The bottom of the elastic membrane 480 is provided with a hole 484. The ink cartridge and ink leakage prevention principle are the same as those of Fig. 16A.
    [139] 18A and 18B show another embodiment of the present invention, and the same elements as in FIG. 16A are denoted by the same reference numerals. The plastic appliance 460 is made of inelastic material and has an overlapping structure. The plastic mechanism 460 is connected at the inlet 462 to the lid 410 of the ink tank 400. The ink filling hole 440 is formed in the wall of the ink cartridge 400. In operation, ink flows from the outlet 404 and air enters the plastic appliance 460 through the aperture 414 causing the plastic appliance to slowly unfold until its overlapping layers 464 are fully laid out. . The inlet of the plastic appliance 460 is rectangular, 47 mm long and 14 mm wide, as shown in Fig. 18B. When the overlapping layers are fully laid out and the ink is not exhausted, the bottom of the plastic appliance 460 An slit 468 is provided to supply a predetermined amount of air to balance the pressure in the ink tank so that the printing operation can be continued. The ink cartridge and ink leakage preventing principle in this embodiment are also the same as in the embodiment of Fig. 16A.
    [140] 19A to 19E show a modification of the seal assembly accommodated in the ink supply port 404. The remaining structures are substantially the same as in the embodiment shown in FIG. 16A. Although the seal assemblies of FIGS. 19A-E have different shaped structures, each seal assembly basically operates on the same principle. In the structure shown in FIG. 19A, the plastic seal 64 is fused with a plastic ring 66 provided between the first and second o-rings 62. In FIG. 19B, the plastic seal 68 is disposed in the outer hole of the ink supply port 404. As shown in FIG. In Fig. 19C, a seal member 70 of uniform shape having an opening 72 having a truncated cone-shaped cross section is disposed in the ink supply port 404. In Fig. 19D, an opening having a truncated cone-shaped cross section is formed in the cap-shaped sealing member 74 and disposed in the ink supply port 404. Finally, the cap-shaped seal member 76 shown in Fig. 19E is provided with a ring 78 of steel material disposed in the ink supply port 404 having the opening 72 of the truncated cone-shaped cross section.
    [141] 20A illustrates another embodiment of the present invention that includes a seal assembly 52 having a block portion 526 selectively separated through a brittle connection 528. The seal assembly 52 is made of an elastic material having a shore hardness of 30 ° -50 °. When the ink supply needle is inserted through the seal portion 524, the block portion of the seal assembly is at least partially separated from the remaining seal assembly. The brittle connection 528 has a preferred width of 0-0.3 mm and a thickness of 0.15 mm-0.4 mm. The block portion 526 has a generally flat surface to engage the ink supply needle so that it can be pushed easily. The seal portion 524 has a horizontal structure for holding the block portion upon insertion of the ink supply needle 50. As shown in FIG. 20B, the seal assembly 52 allows the ink supply needle to penetrate by breaking the brittle connection 528 described above. As a result, the outer surface of the ink supply needle is engaged to be sealed by the seal portion 524.
    [142] In FIG. 21A, the connection part 528 is formed on one side thinner than the other side. This allows the block portion to be separated along the thinner connection as shown in FIG. 21B but the thicker connection remains connected to the seal member. In Fig. 22, the main difference when comparing the seal assembly of the present embodiment with the seal assemblies of the other embodiments is a structure in which the block portion has a cylindrical shape. That is, the block portion is connected to the thin brittle connection portion 528 when the needle is stuck by the needle and the other side is a structure in which the cylindrical block remains as it is. An inclined surface 525 is provided in the inward direction of the seal assembly to allow the block portion 526 to be easily separated from the thin connection. The inclined surface 525 has an inclination angle formed between the inclined surface and the block portion when the block portion is punctured by the needle upwards from 30 ° to 45 °. The shape of the block portion of FIG. 23A shows that the connection portion 528 has a constant thickness, and FIG. 23B shows that one side portion 529 of the connection portion is thinner than the other side portion 529 '. Giving. The thickness of the thickest other side portion 529 'of the connecting portion is 0.3-0.4 mm, and the thickness of the thinnest side portion 529 is 0.15-0.25 mm.
    [143] In the embodiment of Figure 24, the seal portion 524 is formed long in the needle insertion direction. The gate portion 526 is circular and is provided closed at one end of the seal portion 524. In addition, the brittle connection portion 528 allows one side thereof to be rotated at the seal portion 524 by being thinner than the other side. As the ink supply needle (not shown in the figure) is inserted through the seal assembly, the thin connection breaks and the seal rotates at the hinge 524 '. Moreover, the elongate seal portion 524 engages its outer surface in a sealed state with the ink supply needle.
    [144] The seal portion has an integral structure and meets various requirements for assembly, transportation and operation, thereby reducing the seal film that the ink supply needle has to penetrate at the discharge port and overcomes the problem of penetrating the diaphragm of the seal member of the conventional ink cartridge. .
    [145] In FIG. 25A, the air vent 414 is separated from the ink supply port 404. Thus, the package seal 96 covers the air vent 414 and the ink supply port 404 so that ink does not leak during transportation. The package seal portions indicated by arrows in the figure are removed by lifting the edge up before inserting the cartridge into the needle. The remaining foil-shaped seal strip is separated toward the ink supply port 404 to open the ink supply port. By removing the package seal, the air vent 414 and ink supply ports 404 are exposed. This causes the ink chamber to be in communication with the air vent so that the ink supply port 404 is aligned with the ink supply needle (not shown in the figure).
    [146] The embodiment of Fig. 25B shows a structure in which the air vents and the ink inlets are closed in the same vertical plane of the cartridge. The foil seal 98 is provided to permanently seal the ink filling hole 440 provided in the lid 410 of the ink cartridge. The package seal 96, which is connected to the connecting portion 94, is fixed to the ink cartridge during transportation, but can be pulled up and removed.
    [147] In Figures 26 and 16E, it is shown that the cartridge 400 is filled with ink under negative pressure. First, ink is contained in the container 618, and the container 618 is connected to one side of the pump 614 through the ink tube 616, and the other side of the pump is connected to the ink cartridge (610) through the tube 610. 400). A flow meter 612 is provided in the middle of the tube 610 to control the flow rate. When the ink cartridge is filled with ink at a preset level, the filling operation is stopped. The other end of the needle is then connected to the pump 602 via a soft tube 606 while the tip of the needle 604 is inserted into the hole 470. A separator 608 is provided at the connection between the needle 604 and the soft tube 606 to separate the air and liquid ink. When the pump is operated, the ink in the ink chamber 402 is removed and there is a pressure difference on the opposite side of the valve 30 so that the valve 30 is separated from the valve seal cap 340. As a result, ink is removed from the ink chamber 402 to fill the ink induction chamber 412 through the holes 418 of the valve seal cap 340 and the holes 332 of the valve 30. The plug 438 is inserted into the ink filling hole 440 to complete the ink filling operation through the ink filling hole 440.
    [148] In FIG. 27, an ink supply port is arranged upside down in the ink cartridge 400. As shown in FIG. The ink container 618 is connected to the ink cartridge 400 by the tube 616 in a sealed state. An ink flow meter 612 is provided in the middle of the tube 616 to control the ink flow rate. The needle including the tube 606 is inserted into the rubber stopper 472 in the hole 47 of the cartridge 400 to connect the ink guide chamber of the ink cartridge with the tube. The other end of the tube is connected to an air pump 602. In addition, the tube 606 is connected to the air and the liquid ink separator 608. When the air in the ink chamber 412 of the ink cartridge 400 is removed, a pressure difference is generated at both sides of the valve to open the valve, and the air in the chamber 402 is also removed so that ink flows into the chamber 402. The ink cartridge 400 is disposed upside down so that the ink in the ink chamber 402 flows into the ink induction chamber and is filled quickly. When the flow of ink reaches a preset amount, the ink filling is stopped. In fact, the ink may be charged to the side of the ink cartridge, and in this case, the filling process is the same as described above. In Fig. 7A, the large diameter portion of the valve 30 is smaller than 11 mm, and the volume of air trapped in the ink induction chamber 412 is less than 0.4 mm 3 , so that the ink induction chamber does not need to be filled with ink. Air trapped in the ink induction chamber is exhausted, for example, during the cleaning operation of the printer. The remaining portions of the ink cartridge are filled at a pressure below normal atmospheric pressure or at a pressure low enough for atmospheric pressure.
    [149] Under negative pressure, the pressure in the small space below the valve 30 ranges from -700 mPa to -750 mPa, while the pressure above the valve increases as the ink amount increases in the ink tank. When the pressure reaches a preset value, the valve 30 opens to allow ink to flow into the bottom of the tank. The volume below the valve is small enough that the ink can be filled at the same time the valve 30 is opened. Thus, when the valve is closed by its elastic force, the upper side of the valve is sufficiently filled until the filling process is completed.
    [150] As shown in Fig. 28, the maximum diameter of the support leg portion is 9 mm and it is not necessary to accommodate the ink and form a hole in the discharge side wall, but it is necessary to form a filling hole in the lid of the cartridge. In addition, there is no need to exhaust the air during ink filling. The container 618 is connected to one side of the liquid pump 614 by the ink tube 616, and the other side of the liquid pump is connected to the hole of the ink cartridge 400 by the ink tube 610. An ink flow meter 612 is provided in the middle of the ink tube 610 to control the ink flow rate. When the ink is filled, the ink flows directly into the ink chamber 402 from the filling hole 440, thereby preventing the ink from being convexed by the surface tension in the ink filling hole 440 by negative pressure. This negative pressure can be used to fill the ink in the ink cartridge of the present invention shown in FIGS. 16E and 29. When the ink is filled, the assembled ink cartridge 400 is first turned upside down and the tip of the needle 506 is inserted into the ink filling hole 440 of the lid 410 of the cartridge. The other end of the needle 506 is connected to the tube 508, which is connected to the ink supply container 502. The ink level in the ink supply container 502 is higher than that in the ink cartridge 400. The air hole 470 in the wall of the outlet 404 is blocked by the stopper 472. One end of the air needle 560 is inserted into the stopper 472 and connected to the air-liquid ink separator 580 by an electromagnetic valve 540. The separator 580 is connected to the vacuum pump 590 by an ink flow meter 570. When filling the ink, the pressurizing device 510 seals the lid of the cartridge 400 and when the vacuum pump is operated by turning the switch of the vacuum pump 590, the electromagnetic valve 540 is opened and the electromagnetic valve 520 is opened. It is closed and the air of the lower side of the valve 30 is exhausted. The valve 30 opens in response to the pressure difference, and as a result, the air above the valve 30 is exhausted. At the same time, there is a hole 454 in the wall of the instrument 450 so that the air in the instrument chamber 456 is also exhausted. When the vacuum gauge goes from -700 mPa to -750 mPa, the electromagnetic valve 530 is opened. A negative pressure is created on the ink cartridge so that ink is discharged from the ink supply container 502 to the tank of the ink cartridge. As the ink amount of the ink cartridge increases, the pressure on the upper side of the valve increases to a certain value, while the pressure in the ink induction chamber is still maintained at a negative pressure (-700 mPa to -750 mPa) so that the valve 30 is opened and ink Allow the ink to enter the induction chamber. The lower side of the valve can be filled with ink at about the same time as the valve 30 is opened. The valve is then closed by its elastic force and the ink is completely filled on the upper side to complete the ink filling process.
    [151] According to the present invention, the vacuum gauge 570 is connected to the one side of the vacuum pump 590 and the other side to the electromagnetic valve 540. When the vacuum gauge is at the level of -700 mPa to -750 mPa, the electromagnetic valve 540 closes and separates the air needle 534 from the air hole 470 of the stopper 472.
    [152] The valve 30 may be accommodated in a recess formed by the inner wall of the ink discharge port. In addition, the recess of the ink discharge port may include a stepped circular portion formed at the bottom of the recess to accommodate the filter member 56.
    [153] The present invention has been described with reference to the preferred embodiments, and variations and modifications may be made by others who understand the present specification, and such changes and variations are also included in the present invention.
    [154] The present invention employs a one-way valve to control the flow of ink, efficiently improves the volumetric efficiency, greatly reduces the manufacturing cost, and improves productivity by simplifying the ink filling process.
    权利要求:
    Claims (42)
    [1" claim-type="Currently amended] An ink cartridge for an ink jet recording apparatus, comprising: a cartridge body having at least one ink chamber and containing ink;
    The cartridge body includes at least one air vent that provides a fluid passage between the ink chamber and the outside air, at least one ink outlet for supplying ink from the ink chamber, and an ink outlet for sealing the ink outlet. At least one seal member provided, at least one one-way valve disposed in the ink chamber to control ink flow,
    The at least one one-way valve includes a leg support for sealing the inner wall of the ink discharge port, a wall support protruding from the inside of the leg support, a jaw support that is curved toward the inside of the wallpaper support, and a central air vent. The head support protruding from the
    The cartridge body further comprises a valve seal assembly for closing the vent of the center of the head support.
    [2" claim-type="Currently amended] The ink cartridge according to claim 1, wherein the wallpaper paper portion protrudes obliquely from the leg support portion.
    [3" claim-type="Currently amended] The ink cartridge according to claim 1, wherein the jaw support part is provided with a groove formed by bending the wallpaper paper part inwardly.
    [4" claim-type="Currently amended] The ink cartridge according to claim 1, wherein the head support portion protrudes obliquely from the jaw support portion.
    [5" claim-type="Currently amended] The ink cartridge according to claim 4, wherein the vent of the center of the head support portion is a conical hole.
    [6" claim-type="Currently amended] The ink cartridge according to claim 5, wherein the inclination angle of the head support portion is larger than that of the wallpaper portion.
    [7" claim-type="Currently amended] The ink cartridge according to claim 1, wherein the leg support portion is thicker than the head support portion, and the head support portion is thicker than the thickness of the jaw support portion.
    [8" claim-type="Currently amended] The ink cartridge according to claim 7, wherein a recess is formed by an inner wall of the ink discharge port for accommodating the valve.
    [9" claim-type="Currently amended] The ink cartridge according to claim 8, wherein the groove includes a stepped circular portion formed at a bottom thereof for accommodating the filter member.
    [10" claim-type="Currently amended] The ink cartridge according to claim 1, wherein the head support of the one-way valve is disposed in a state of being slightly pressed by the valve seal assembly.
    [11" claim-type="Currently amended] An ink cartridge according to claim 1, wherein an ink leakage preventing means is disposed in the air vent to prevent ink from leaking from the air vent.
    [12" claim-type="Currently amended] 12. The ink cartridge according to claim 11, wherein the ink leak preventing means is a protrusion protruding from the air vent into the ink chamber.
    [13" claim-type="Currently amended] 12. The ink cartridge according to claim 11, wherein the ink leak preventing means is a curved tube surrounding a periphery of the air vent, one end of which is connected to the air vent and the other end of the ink vent.
    [14" claim-type="Currently amended] 12. The ink leak preventing means according to claim 11, wherein the ink leak preventing means is a bag-shaped member disposed in the ink chamber, and includes an open end connected to an air vent and a small hole provided in a wall of the bag-shaped member. Ink cartridge.
    [15" claim-type="Currently amended] The ink cartridge according to claim 14, wherein said bag-shaped member is an elastic balloon having an open end.
    [16" claim-type="Currently amended] 16. The relatively wide width of claim 15 wherein a bowl-shaped cap provided to secure the resilient mechanism engages a relatively narrow end that acts as an elongated portion of the air vent and the outer circumferential surface of the protrusion of the air vent. An ink cartridge comprising a through hole having an end portion and a jaw for an open end portion on which the elastic mechanism is mounted.
    [17" claim-type="Currently amended] The ink cartridge according to claim 15, wherein the bottom of the ink chamber is inclined to an ink outlet.
    [18" claim-type="Currently amended] 18. The ink cartridge according to claim 17, wherein the at least one ink guide groove is formed in the bottom surface of the ink chamber.
    [19" claim-type="Currently amended] 19. The ink cartridge according to claim 18, wherein a protrusion is formed at the bottom of the ink chamber to fix the bag-shaped member.
    [20" claim-type="Currently amended] 20. The ink cartridge according to claim 19, wherein the open end of the bag-shaped member has a hole corresponding to the wall of the cartridge body provided with the air vent therein.
    [21" claim-type="Currently amended] 21. The ink cartridge according to claim 20, wherein the bag-shaped member has a plurality of overlapping layers.
    [22" claim-type="Currently amended] 15. The ink cartridge according to claim 14, wherein the air vent is in communication with the outside through an air vent through which irregular air is formed in the wall of the cartridge body.
    [23" claim-type="Currently amended] 23. The ink cartridge according to claim 22, wherein a part of the air-induced vent is disposed on the inner side of the wall.
    [24" claim-type="Currently amended] An ink cartridge according to claim 23, wherein said air guide film is provided on an outer surface of a wall provided with an air vent therein.
    [25" claim-type="Currently amended] An ink cartridge according to claim 11, wherein said ink filling hole is provided in the wall of said cartridge body and is sealed by a seal plug.
    [26" claim-type="Currently amended] 2. The seal assembly of claim 1, wherein the seal assembly provided at the ink discharge port includes a support part integrally formed therein and supported by an inner wall of the ink discharge port, a seal part protruding from the support part, and a block corresponding to the seal ring. And a connecting portion surrounding the block portion and the seal ring to support the block portion separated from the connecting portion under a predetermined pressure.
    [27" claim-type="Currently amended] 27. The ink cartridge according to claim 26, wherein an inclined surface is provided inwardly of the seal assembly.
    [28" claim-type="Currently amended] 27. The ink cartridge according to claim 26, wherein a circular groove is formed to arrange a support of the seal assembly to easily separate the block portion from the seal assembly.
    [29" claim-type="Currently amended] 27. The ink cartridge according to claim 26, wherein the connection portion has a different thickness.
    [30" claim-type="Currently amended] The ink cartridge according to claim 29, wherein the thickness of the connection portion is formed to decrease from one side to the other side.
    [31" claim-type="Currently amended] The ink cartridge according to claim 1, wherein a gas exhaust vent is provided on a wall of the ink outlet.
    [32" claim-type="Currently amended] For ink flow control comprising a leg support, a wallpaper support protruding from the inside of the leg support, a jaw support curved towards the inner side of the wall support, and a head support protruding from the jaw support and having a central vent; One-way valve.
    [33" claim-type="Currently amended] 32. The one-way valve according to claim 31, wherein the jaw support is provided with a groove formed by the wallpaper branch curved inwardly.
    [34" claim-type="Currently amended] 33. The one-way valve of claim 32, wherein the head support portion protrudes obliquely from the jaw support portion.
    [35" claim-type="Currently amended] 33. The one-way valve of claim 32, wherein the leg support portion is thicker than the head support portion and the head support portion is thicker than the jaw support portion.
    [36" claim-type="Currently amended] a) seal the ink cartridge,
    b) insert the ink supply needle into the ink outlet of the ink cartridge,
    c) by using a pressure pump to draw air in both the ink chamber and the ink guide space to form a negative pressure in the ink guide space,
    d) An ink filling method for filling ink in the ink cartridge of claim 1, comprising filling the ink cartridge with a predetermined amount of ink.
    [37" claim-type="Currently amended] 37. The gas exhaust vent according to claim 36, wherein step c) comprises: e) perforating a gas exhaust vent through a wall of the ink guide space formed by the same direction valve and seal assembly,
    and f) inserting a drawing needle into the gas exhaust vent.
    [38" claim-type="Currently amended] 38. The ink filling method according to claim 37, further comprising: g) removing the drawing needle from the gas exhaust vent when the air pressure reaches a preset value.
    [39" claim-type="Currently amended] An air vent providing a fluid passage between the ink chamber and the outside air, an ink supply port for supplying ink from the ink chamber, a seal assembly disposed at the ink outlet to retain the ink, a seal for retaining the ink and controlling the flow thereof The ink is filled so as to fill the ink cartridge of claim 1 including a one-way valve which forms an ink guiding space together with the assembly and is disposed at the bottom of the ink tank and connects with a valve seal assembly that prevents bending of the head support. An ink filling apparatus having a supply container, an ink filling needle inserted into an ink supply port of an ink cartridge and connected to the ink supply container through a tube, an air pump, and a drawing needle connected to the air pump through a tube. In
    A pressurized means for sealing the lid of the ink cartridge, a flow control device comprising an air tube connecting the tube, separately between the flow control device and the tubes between the ink supply container and between the flow control device and the ink filling needle. And at least one valve disposed therein.
    [40" claim-type="Currently amended] A method of filling ink into an ink cartridge according to claim 1, comprising: a) inserting an ink supply needle connected to an ink supply container into an ink supply port of the ink cartridge,
    and b) filling a predetermined amount of ink directly into the ink cartridge through a negative pressure pump.
    [41" claim-type="Currently amended] 41. The gas exhaust vent of claim 40, further comprising: c) perforating a gas exhaust vent through a wall of the ink guide space formed by the one-way valve and the seal assembly,
    d) inserting an ink draw needle into the gas exhaust vent so as to be connected to a negative pressure pump;
    e) withdrawing air from the ink guide space portion of the ink cartridge by negative pressure to cause the one-way valve to be separated from the valve seal assembly by the pressure differential so that the ink can be directed to the ink guide space. Ink charging method characterized in that.
    [42" claim-type="Currently amended] 42. The method of claim 41, further comprising sealing the ink filling hole.
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    同族专利:
    公开号 | 公开日
    EP1270235A4|2003-09-24|
    WO2001078988A8|2002-02-28|
    EP1270235A1|2003-01-02|
    MXPA02009735A|2003-03-27|
    PL197394B1|2008-03-31|
    BR0109654A|2004-01-13|
    WO2001078988A1|2001-10-25|
    PL365774A1|2005-01-10|
    MY136058A|2008-08-29|
    HU0300420A2|2003-06-28|
    KR100880048B1|2009-01-22|
    CA2402794A1|2001-10-25|
    AU2001248230B2|2005-05-26|
    JP2003531743A|2003-10-28|
    BR0109654B1|2011-01-25|
    AU4823001A|2001-10-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2000-04-03|Priority to CN00106428.2
    2000-04-03|Priority to CN00106428
    2000-06-02|Priority to CN00109059.3
    2000-06-02|Priority to CN00109059
    2000-07-31|Priority to CN00122540
    2000-10-12|Priority to CN00131642.7
    2000-10-12|Priority to CN00131642
    2000-11-18|Priority to CN00122540.5
    2000-11-18|Priority to CN00133063.2
    2000-11-18|Priority to CN00133063
    2001-02-28|Application filed by 추하이의 유니콘 이미지 프로덕츠 컴퍼니 리미티드
    2002-12-31|Publication of KR20020097207A
    2009-01-22|Application granted
    2009-01-22|Publication of KR100880048B1
    优先权:
    申请号 | 申请日 | 专利标题
    CN00106428.2|2000-04-03|
    CN00106428|2000-04-03|
    CN00109059.3|2000-06-02|
    CN00109059|2000-06-02|
    CN00122540|2000-07-31|
    CN00131642.7|2000-10-12|
    CN00131642|2000-10-12|
    CN00133063|2000-11-18|
    CN00122540.5|2000-11-18|
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