MXPA05012886A - Method of liquid filling of cartridge, liquid filling device, and cartridge - Google Patents

Abstract

A method of refilling liquid into a cartridge according to the present invention is a method of liquid refilling, through which liquid is refilled into a used cartridge (1) in a liquid jet apparatus, comprising:a film removing process, in which an injection hole film (90) adhered around an air discharge opening (21), which communicates with the interior of the used cartridge (1), to seal the air discharge opening (21) is removed in order to make the air discharge opening (21) open;a liquid injecting process, in which liquid is injected into the used cartridge (1) through the air discharge opening (21) that has been made open in the injection hole film piercing process;and an injection hole film rewelding process, in which the film is rewelded using a surface other than an originally welded surface as a rewelded surface in order to seal again the air discharge opening (21), through which the liquid is injected in the liquid injecting process.

Description

METHOD OF FILLING LIQUID CARTRIDGE, LIQUID FILLING DEVICE, AND CARTRIDGE BACKGROUND OF THE INVENTION The present invention relates to a method for filling liquid in a cartridge of a liquid dispensing apparatus such as a printer, device for deployment fabrication, device for electrode formation, or device for manufacturing biochip that has a liquid-dispensing head that sprays liquid droplets through nozzle openings. The present invention also relates to a device for filling liquid, and a cartridge. Although a liquid jetting apparatus having a liquid-dispensing head that spouts liquid droplets through nozzle openings sprays several kinds of liquid, what is much more known is a recording head mounted on a device for ink jet register. Accordingly, the device for recording ink jet will be used as an example for the description. The ink jet recording device includes a liquid dispensing head that ejects liquid, such as ink, and records images such as letters, figures or the like; and a cartridge that stores the liquid, such as ink, that is to be supplied to the liquid dispenser head, and in general, the cartridge can be independent of the device for recording the ink jet for replacement. When the ink in the cartridge runs out and the images can not be registered, the images can be recorded again when replacing the used cartridge that does not store ink with a new cartridge that stores ink. In recent years, it has been sought that the cartridge used is injected with ink for recycling, since serious problems occur such as increased waste and environmental load when the cartridge used is thrown after a single use. In order to reuse the cartridge used, a method is proposed for filling the ink cartridge of the ink jet recording apparatus, in which the ink remaining in an ink bag is discharged and a specified amount of ink is injected. in the ink bag (for example, see Patent Document 1). In the method described in Patent Document 1, the ink bag is pressed by a press plate in a low pressure chamber in order to discharge the ink remaining in the ink bag, and then the specified amount of ink is injected. ink in the ink bag. In addition, an ink replenishment method is proposed, through which ink is filled in the used cartridge that does not store ink (see Patent Document 2). In the method described in Patent Document 2, ink is again filled by a refill unit while a suction unit is sipping the ink in an ink tank. Patent Document 1: Japanese Patent Exposed No. 10-193635 Patent Document 2: Japanese Patent Exposed No. 1 -207990 However, in the method described in Patent Document 1, the specified amount of ink is injected into the Ink bag while the ink bag is pressed by the pressing plate in the low pressure chamber and thus the ink remaining in the ink bag is discharged. Accordingly, the method can not be applied to a hard case cartridge having a fixed shape. In addition, since the ink is discharged from the ink bag by a device having a vertically moving press plate in the low pressure chamber, the configuration of the device and the process become complex. As a result, the cost of recycling increases. In addition, in the method described in Patent Document 2, since the ink is refilled while the ink in the cartridge (ink tank) is being sipped, the weight level of the cartridge may be decreased, or a larger amount of deteriorated ink may remain in the ink bag due to the increased viscosity of the ink (the viscosity is increased when drying) to mix with the refilled ink, or the refilled ink may contain many air bubbles, and thus it is very likely that the ink can not assure a required quality when it is reused. In contrast, when it is sought that the remaining ink be completely discharged, it is likely that the refilled ink may be mixed with the remaining ink after being discharged, and thus the amount of re-filled ink may be diminished. That is, it is difficult to ensure the quality and performance of the recycled cartridge ink at the same time, and thus both methods are not satisfactory. Further, since the ink is injected from a supply opening supplying ink into a printer or the like and then stored in an ink-containing member in the cartridge, the direction of ink flow during suction or injection is opposite to that of the ink. direction of ink flow during use, and the ink bubbles to remain in the form of air bubbles in the cartridge. As a result, it is likely to cause the lower trickle of the dispensing head while the recycled cartridge is being used. As described above, Patent Documents 1 and 2 never mention how to ensure the performance of the cartridge by sealing the recycled ink-filled cartridge securely, let alone studying the above matter. In addition, Patent Documents 1 and 2 never mention how to remove air bubbles in a recycled cartridge and how to prevent the inferior trickle of the liquid dispensing head when using the recycled cartridge, let alone study the above matter.

BRIEF DESCRIPTION OF THE INVENTION An advantage of the invention is to provide a method of and a device for efficiently filling liquid in a cartridge, and the cartridge manufactured by the method and / or the device. Another advantage of the invention is to provide a method for filling liquid into a cartridge that effectively fills liquid in the cartridge used in the liquid dispensing apparatus and a liquid filling device. Another advantage of the invention is to provide a method for filling liquid in a cartridge that ensures the performance of the cartridge by effectively filling liquid in the cartridge used in the liquid dispensing apparatus and then sealing the recycled cartridge filled with ink in a secure manner, a device for filling liquid and a filling cartridge. Yet another advantage of the invention is to provide a method for filling liquid into a cartridge that effectively fills liquid in the cartridge used in the liquid jetting apparatus and prevents bottom tripping of the liquid dispensing head when the recycled cartridge is used and a device for filling liquid. Still another advantage of the invention is to provide a method for filling liquid in a cartridge that efficiently fills liquid in the mountable cartridge to a liquid jetting apparatus and prevents bottom tripping of the liquid dispensing head, and a liquid filling device. . In order to achieve at least one of the above advantages, a method for filling liquid in a cartridge according to the present invention can fill liquid to a used cartridge having an opening commonly with an inside of the used cartridge and a first film welded to a surface originally welded around the opening to seal the opening, and includes: a film removal process, in which the first film is removed in order to communicate the opening with an exterior of the used cartridge; a liquid injection process, in which liquid is injected into the cartridge used through the communicated opening in the film removal process; and a re-welding process, in which a second film is re-welded using a different surface to the surface originally welded as a re-welded surface (hereinafter referred to as a 're-welded surface') in order to seal again the opening, through which the liquid has been injected in the liquid injection process. Furthermore, in order to achieve at least one of the advantages, a liquid filling device in a cartridge according to the invention can fill liquid in a used cartridge having an opening communicating with an inside of the cartridge used and a first one. film welded to a surface originally welded around the opening to seal the opening, and includes: a film removal unit that removes the first film in order to communicate the opening with the exterior of the cartridge used; a liquid injection unit that injects liquid into the cartridge used through the opening communicated by the film removal unit; and a re-welding unit that re-welds a second film using a surface different from the originally welded surface as a re-welded surface in order to re-seal the opening, through which the liquid has been injected by the unit of liquid injection. Furthermore, in order to achieve at least one of the advantages, a filler cartridge according to the invention is a cartridge manufactured by filling liquid in a used cartridge having an opening communicating with an interior of the used cartridge and a first film. welded to a surface originally welded around the opening to seal the opening, in which the first film is removed in order to communicate the opening with an exterior of the used cartridge, and a second film is re-welded using a different surface to the surface originally welded as a re-welded surface in order to seal the opening again after the liquid is injected. That is to say, in the method for filling liquid in a cartridge and the liquid filling device of the invention, the first film welded around the opening of the cartridge used to seal the opening communicating with the inside of the cartridge is removed in order to communicate the opening, and then the liquid is injected into the cartridge used notwithstanding the opening that has been made open. Then, the second film is re-welded using a surface different from the originally welded surface as a re-welded surface in order to seal the opening, through which the liquid has been injected. As a result, it is possible to obtain a welding quality that ensures a welding firmness that does not leak liquid with any change in the shape of the cartridge. Furthermore, since the second film is re-welded using a surface different from a surface originally welded as a re-welded surface, the welding safety improves. In this case, if a film that is the same as the originally bonded film is used, it can ensure safety against deterioration of life. As described above, since the cartridge used can be effectively recycled with a simple process, a user can be provided with a high quality used cartridge at a low recycling cost. Furthermore, since the cartridge used can be reused when injecting liquid into the cartridge, the reduction in environmental load accompanied by the reduction of waste and the low cost due to the reuse of parts can be achieved, so that users Can be provided with cartridge at low cost. In this case, if a film that is the same as the originally bonded film is used, it can ensure safety against deterioration of life. In the method for filling liquid in a cartridge according to the invention, if the re-welded surface is formed in a recessed portion around the opening that is deeper than the originally welded surface, the re-welded surface is deeper that the other adjacent portion and so covered with the first film. Consequently, the re-welded surface is rarely damaged while the cartridge is being used. As a result, the second film can be soldered to a surface without any damage, which leads to the safe re-welding of the second film.

In the method for filling liquid to a cartridge according to the invention, a sloping surface, inclined downwards, towards the inside of the cartridge of an edge of the opening is formed in the opening of the cartridge, and if the second film becomes to weld to the inclined surface, the second film is soldered to the inclined surface which is inclined downwards, inside the cartridge of the edge of the opening. Accordingly, the film can be re-soldered to the sloped surface easily with a solder jig. As a result, the opening can be sealed more securely. In the method for filling liquid in a cartridge according to the invention, the cartridge has a pressure control valve which controls the supply pressure of the liquid in a liquid supply opening that supplies the liquid to the liquid jet apparatus, and if the cartridge stores the liquid therein by the pressure control valve pressure control, the liquid is injected in the same direction as the direction of liquid flow when the cartridge is used. Consequently, the liquid can be injected slowly while air bubbles rarely enter or remain. In the method for filling liquid in a cartridge according to the invention, the cartridge has the liquid supply opening that supplies the liquid to the liquid jetting apparatus, and if the liquid remaining in the used cartridge is removed from the opening of liquid supply (liquid extraction process) before the liquid injection process, the liquid is injected into the cartridge after the ink remaining in the used cartridge is removed, and thus the effect of the inner liquid can be diminished . In addition, since the liquid remaining in the cartridge is removed through the liquid supply opening, during the liquid extraction process, the liquid flows in the same direction as the direction of liquid flow when the cartridge is used. , and thus the liquid can be extracted slowly. In addition, since it is possible to use an extraction tool having the same configuration as that of the liquid spout apparatus, common parts for the device and the tool can be used, which leads to. reducing the cost of the device, and the liquid can be drawn slowly. In the method for filling liquid in a cartridge according to the invention, if the liquid is injected into the cartridge, from which the remaining liquid has been extracted in the liquid extraction process, through the opening, not through From the liquid supply opening in the liquid injection process, the liquid can be effectively injected in a short time while no air bubble enters. In the method for filling liquid in a cartridge according to the invention, if the opening is an opening communicating with an ink tank chamber upstream of the pressure control valve, the liquid is injected in the same direction that the direction of liquid flow when the cartridge is used. Consequently, the liquid can be injected slowly while air bubbles rarely enter or remain. In the method for filling liquid in a cartridge according to the invention, if the first film in the aperture is removed by forming a direct hole in the first film in the aperture when the first film is removed in the aperture in the process of film removal, and the opening can be made open without any damage to the cartridge or the like by forming the direct hole in the first film in the opening when liquid is injected into the cartridge through the opening in the liquid injection process , the re-welded surface is rarely damaged. Accordingly, the second film can be soldered to a surface without any damage, which leads to the safe welding of the second film. further, the liquid can be effectively injected in a short time while no air bubbles enter. According to the filling cartridge of the invention, users can reuse the filling cartridge having welding quality which ensures the welding firmness that includes no leakage of liquid with no change in the shape of the cartridge. In addition, since the second film is re-welded using a different surface to a surface originally welded as a re-welded surface, the weld safety increases, and the user's satisfaction improves. In this case, if a film is used that is equal to the originally bonded film, it can ensure safety against deterioration of life.

In addition, since the cartridge used can be reused when injecting liquid into the cartridge, the reduction in the environmental load accompanied by the reduction of waste and the low cost due to the reuse of parts can be achieved, so that the users Can be provided with cartridge at a low price. As described above, since the cartridge used can be effectively recycled with a simple process, a user can be provided with a high quality used cartridge at a low recycling cost. In order to achieve at least one of the above advantages, a method for filling liquid in a cartridge according to the present invention can fill liquid in a cartridge mountable to a liquid jetting apparatus, and includes a liquid injection process to inject liquid into the cartridge; and a suction process for sucking a predetermined amount of liquid from the interior thereof through a liquid supply opening, through which the cartridge delivers the liquid to the liquid jetting apparatus, after the liquid is injected into the liquid jet. the process of liquid injection. Furthermore, in order to achieve at least one of the above advantages, a device for filling liquid in a cartridge according to the invention can fill liquid in a cartridge mountable to a liquid dispensing apparatus, and includes a liquid injection unit. liquid that injects liquid into the cartridge; and a suction unit which draws a predetermined amount of liquid from the interior of the cartridge through a liquid supply opening, through which the cartridge delivers the liquid to the liquid jetting apparatus, after the liquid is injected through the liquid. liquid injection unit. That is, according to the method for filling liquid in a cartridge and the liquid filling device according to the invention, after liquid is injected into the cartridge, a predetermined quantity of liquid is sucked from the inside of the cartridge through of the liquid supply opening supplying the liquid to the liquid dispensing apparatus. Accordingly, if the predetermined amount of liquid is sucked from the inside of the cartridge through the liquid supply opening after the injection of the liquid, air bubbles rarely remain in the cartridge. In addition, since air bubbles close to the liquid supply opening that influence the blasting performance of the dispensing head can mostly be removed, it is possible to ensure the blasting characteristic of the liquid spout apparatus. In particular, in case where the invention is applied to the cartridge used, it is possible to ensure the blasting characteristic of the liquid dispensing apparatus in the used cartridge as good as that of the new cartridge. In addition, since no external pressure is applied when the air bubbles are removed, the cartridge is rarely damaged, and the cartridge can be recycled more times. As described above, in particular, in the case where the invention is applied to the cartridge used, since the cartridge used can be efficiently recycled with a simple process, a user can be provided with a high quality cartridge used at a low recycling cost. In addition, since the cartridge used can be reused when injecting liquid into the cartridge, the reduction in environmental load accompanied by the reduction of waste and the low cost due to the reuse of parts can be achieved, and thus the users They can provide with the cartridge at a low price. In the embodiment of the invention, the cartridge has a pressure control valve that controls the supply pressure of the liquid in the liquid supply opening, and since there is no absorbent material or the like that stores the liquid in a chamber of liquid reservoir of the cartridge in regard to a cartridge, in which the liquid is stored by the pressure control of the pressure control valve, the liquid can move slowly when the liquid is sipped, extracted or injected, the liquid can be slowly filled, and the effect of the invention becomes noticeable. In the suction process, when the amount of liquid corresponding to at least the volume of the flow passage of the pressure control valve to the liquid supply opening between the liquid supply passages in the cartridge is sipped, the bubbles Air in the flow passage of the pressure control valve to the liquid supply opening can be removed safely. Even when air bubbles remain upstream of the pressure control valve, since air bubbles can not enter, a downstream portion of the pressure control valve can safely prevent fouling problems. In the suction process, if the liquid is swallowed and stored in a liquid-containing portion having the volume corresponding to the amount of liquid sucked from the liquid supply opening in the suction process, since the liquid is sipped from the liquid supply opening as well as the volume of the liquid containing portion, a constant volume of liquid can be permanently sucked at all times, the loss of liquid due to excessive suction or the remaining air bubble due to The lack of suction can be prevented safely. When the suction process is carried out upon opening the opening and closing the valve, the negative pressure applied in the vicinity of the liquid supply opening is abruptly increased from a state in which the predetermined negative pressure is accumulated in the portion liquid container opening the opening and closing the valve provided upstream of the liquid container portion. Accordingly, the suction velocity of the liquid in the cartridge is abruptly increased, and thus the liquid can be discharged from the liquid supply opening without stopping. As a result, the liquid containing filled air bubbles in the cartridge is violently sucked, and consequently the liquid that does not contain any air bubbles is filled in the liquid supply opening or the like, and thus the liquid can be thrown by jetting the liquid jet apparatus safely. As described above, since intense negative pressure can be applied to the vicinity of the liquid supply opening without any particular increase in suction force, air or liquid bubbles can be safely slurried by simple equipment. In the embodiment of the invention, if the liquid remaining in the cartridge used is withdrawn from the liquid supply opening (liquid extraction process) before the liquid injection process, the liquid is injected into the cartridge after which The liquid remaining in the used cartridge is removed. Therefore, the effect of the inner liquid can be decreased. In addition, since the liquid remaining in the cartridge is removed through the liquid supply opening, during the liquid extraction process, the liquid flows in the same direction as the direction of liquid flow when the cartridge is used. , and thus the liquid can be extracted slowly. In addition, since it is possible to use an extraction template having the same configuration as that of the liquid dispensing apparatus, common parts for the apparatus and the tool can be used, which leads to the reduction of the cost of the device, and the liquid It can be extracted slowly. In the embodiment of the invention, if liquid is injected into the cartridge, from which the remaining liquid has been withdrawn in the liquid extraction process, through the second opening, not through the liquid supply opening, the Liquid can be effectively injected in a short time while no air bubbles enter. In the embodiment of the invention, if the second opening communicates with the ink reservoir chamber upstream of the pressure control valve, the liquid is injected in the same direction as the direction of liquid flow when the cartridge is used. Consequently, the liquid can be injected slowly while air bubbles rarely enter or remain. In the embodiment of the invention, the liquid is injected into the cartridge in a state in which the pressure of the cartridge, from which the liquid is extracted in the liquid extraction process, is reduced in advance to be on the scale of 600. at 3800 Pa. As a result, since the liquid is injected in a state the air in the cartridge is sufficiently removed, the liquid can be filled slowly while no air bubbles enter the cartridge. Particularly, a cartridge in which a pressure control valve is constructed, like the cartridge of the mode, is effective since the resistance of the air passing through the pressure control valve exerts a bad influence on a property of Fill or leave air bubbles when there are air bubbles in the cartridge. In addition, since the pressure in the cartridge is not reduced excessively, a small amount of liquid remaining in the cartridge can be prevented from evaporating and solidifying, or a severe bubbling exerts a bad influence on a filling property. In regard to an ink cartridge in which liquid has been filled by a method for filling liquid according to the present invention, the filling is completed by slurping a predetermined quantity of liquid from the interior of the cartridge through a liquid supply opening, through which the cartridge delivers the liquid to a liquid dispensing apparatus, after the injection of liquid. That is, after the liquid injection, the predetermined amount of the liquid is sucked from the inside of the cartridge notwithstanding the liquid supply opening. Accordingly, it is possible to provide an ink cartridge in which liquid has been filled substantially without any air bubble. In addition, since it is possible to eliminate the air bubble in the vicinity of the ink supply opening, which will most adversely affect the head performance of the liquid head if it remains in that portion, the filled cartridge can ensure the blasting performance of the liquid spout apparatus to be the same as that of a new cartridge. In addition, since no pressure is applied to the exterior of the cartridge when the air bubble is removed, the cartridge is not damaged, and the cartridge can be recycled several times. As described above, since the cartridge used can be effectively recycled with a simple process, a user can be provided with a high quality used cartridge at a low recycling cost. In addition, since the cartridge used can be reused when injecting liquid into the cartridge, the reduction in environmental load accompanied by the reduction of waste and the low cost due to the reuse of parts can be achieved, and thus users can Provide with cartridge at a low price. In order to achieve at least one of the above advantages, a method for filling liquid in a cartridge according to the present invention can fill liquid in a used cartridge mountable to a liquid dispensing apparatus, and includes a liquid extraction process. liquid, in which liquid is extracted that remains in the cartridge used; a process of checking the remaining quantity, in which it is examined whether the amount of liquid remaining in the cartridge after the remaining liquid is extracted in the extraction process occupies a predetermined proportion or less than the total amount of liquid to be filled in a new cartridge; and a liquid injection process, in which liquid is injected into the used cartridge examined to contain the amount of the remaining liquid equal to or less than the predetermined proportion in the remaining amount checking process. Furthermore, in order to achieve at least one of the above advantages, a liquid filling device in a cartridge according to the invention can fill liquid in a used cartridge mountable to a liquid dispensing apparatus, and includes: a liquid extraction unit. liquid that extracts liquid that remains in the cartridge; a measuring device that measures whether a quantity of the liquid remaining in the cartridge after the liquid is removed by the liquid extraction unit occupies a predetermined proportion or less than the total amount of liquid to be filled in a new cartridge; and a liquid injection unit that injects liquid into the examined cartridge to contain the amount of liquid, measured by the unit of measurement, equal to or less than the predetermined ratio. That is, according to the method for liquid filling in a cartridge of the invention, liquid that is left in the cartridge used is extracted. In addition, it is examined whether the amount of liquid remaining in the cartridge after the liquid is removed by the liquid extraction unit occupies a predetermined proportion or less of the total amount of liquid to be filled in a new cartridge, and is injected liquid in the cartridge used examined to contain the amount of the remaining liquid equal to or less than the predetermined proportion. Accordingly, since liquid is injected only into the examined cartridge to contain the amount of liquid equal to or less than the predetermined proportion, it is possible to ensure the quality of the liquid filled in the cartridge, in which the effect of the lower liquid suffering from the reduction of the level of gas, the increase in viscosity due to drying or the like can be almost ignored. Accordingly, the prmance of the liquid to be refilled can be ensured while the remaining liquid is sufficiently discharged, and both the quality and the yield of the liquid in the recycled cartridge can be ensured. In addition, since no external pressure is required to the cartridge, the cartridge is rarely damaged and the cartridge can be recycled more times. As described above, since the cartridge used can be effectively recycled with a simple process, a user can be provided with a high quality used cartridge at a low recycling cost. In addition, since the cartridge used can be reused when injecting liquid into the cartridge, the reduction in environmental load accompanied by the reduction of waste and the low cost due to the reuse of parts can be achieved, and thus users can Provide with cartridge at a low price. In the method for filling liquid in a cartridge of the invention, when the predetermined proportion in the process of checking the remaining amount is 6% volume, it is possible to ensure the quality of the liquid so that the effect of the lower liquid remaining in the Cartridge can be ignored, and the cartridge used can be refreshed by replacing the liquid in the cartridge used with liquid refilled safely. In addition, the prmance of the liquid to be filled can be ensured while the remaining liquid is sufficiently discharged, and thus both the quality and the yield of the liquid in the recycled cartridge can be ensured. In the method for filling liquid in a cartridge of the invention, when the remaining liquid is removed in the cartridge in the liquid extraction process, a predetermined quantity of liquid corresponding to the surface area of the cartridge is made to remain in the cartridge, and when the liquid is injected into the cartridge, in which the predetermined amount of liquid remains, in the liquid injection process, the predetermined quantity of liquid according to the surface area of the cartridge is made to remain, by means of which the fluidity of the liquid for a portion, in which the liquid flows with difficulty (for example, passage of narrow liquid flow), or a portion , in which the liquid is difficult to supply, improves, the filling characteristics of the liquid improves, and rarely air bubbles remain. In this case, a larger amount of liquid remains if the surface area of the cartridge is large, and a small amount of liquid remains if the surface area of the cartridge is small. As a result, the above function works effectively. In the method for filling liquid in a cartridge of the invention, if the cartridge has a pressure control valve that controls the supply pressure of the liquid with respect to the liquid supply opening, and there is no absorbent or Similarly, when the liquid is stored in a liquid reservoir chamber of the cartridge in relation to a cartridge, in which the liquid is stored by the pressure control valve of the pressure control valve, the liquid can move slowly when the liquid is withdrawn, withdrawn or injected, the liquid can be slowly filled, and the effect of the invention becomes noticeable. In the method for filling liquid in a cartridge of the invention, when the liquid remaining in the used cartridge is removed from the liquid supply opening in the process of extracting liquid that supplies the liquid to the liquid dispensing apparatus, since that the liquid remaining in the cartridge is removed from the liquid supply opening supplying the liquid to the liquid jetting apparatus, the liquid flows in the same direction as the direction of liquid flow when the cartridge is used, by which the liquid can be extracted slowly. In addition, since it is possible to use an extraction template having the same configuration as that of the liquid dispensing apparatus, common parts for the device and the tool can be used, which leads to the reduction of the cost of the device, and the liquid It can be extracted slowly. In the method for filling liquid in a cartridge of the invention, if filling liquid is injected into the cartridge, from which the remaining liquid has been extracted in the liquid extraction process, through the second opening, not through from the liquid supply opening, the liquid can be effectively injected within a short time while no air bubbles enter. In the method for filling liquid in a cartridge of the invention, if the second opening communicates with the liquid reservoir chamber upstream of the pressure control valve, the liquid is injected in the same direction as the flow direction of liquid when the cartridge is used. Consequently, the liquid can be injected slowly while air bubbles rarely enter or remain. Furthermore, according to the liquid filling device of the cartridge of the invention, the liquid remaining in the used cartridge is extracted. In addition, it is measured whether the amount of liquid remaining in the cartridge after the liquid is removed occupies the predetermined proportion or less, and then fluid is injected only into the cartridge containing the measured amount of the remaining liquid equal to or less than the predetermined proportion of the total amount of liquid to be filled in the new cartridge. Accordingly, since filler fluid is injected only in the examined cartridge to contain the amount of liquid equal to or less than the predetermined ratio, it is possible to ensure the quality of the liquid filled in the cartridge, in which the effect of the lower liquid that suffers the reduction of the desg roasted level;, the viscosity increase due to drying or the like can be almost ignored. Accordingly, the performance of the liquid to be refilled can be ensured while the remaining liquid is sufficiently discharged, and both the quality and the yield of the liquid in the recycled cartridge can be ensured. In addition, since no external pressure is required to the cartridge, the cartridge is rarely damaged and the cartridge can be recycled more times. As described above, since the cartridge used can be effectively recycled with a simple process, a user can be provided with a high quality used cartridge at a low recycling cost. In addition, since the cartridge used can be reused when injecting liquid into the cartridge, the decrease in ambient charge accompanied by the reduction of waste and the low cost due to the reuse of parts can be achieved, and users can thus be reused. Provide with cartridge at a low price.

In the present invention, the filling liquid (the liquid to be refilled) may be the same as the original filled and consumed liquid, or it may be liquid from the same group or similar liquid. For example, in the case where the liquid is ink, the filling liquid may be ink of the same color, or it may be ink of the same color group or similar colored ink. Here, the ink of the same group means ink having dye or colored material of the same group, which has substantially the same chromatic characteristic as that of the ink originally filled and consumed (e.g., red ink and light red ink, etc.). ), and similar colored ink means ink having dye or colored material which has a similar chromatic characteristic as that of the ink originally filled and consumed (e.g., red ink and orange ink, etc.). In addition, in some cases, the filling liquid may be ink which is completely different in color from the ink originally filled and consumed. The present disclosure relates to subject matter contained in Japanese Patent Application No. 2004-343427 (filed November 29, 2004), 2004-343428 (filed November 29, 2004), and 2004-343429 (filed on November 29, 2004), each of which is expressly incorporated herein by reference in its entirety.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow diagram illustrating a recycling process of a used cartridge. Fig. 2 is a schematic perspective view showing one embodiment of the cartridge of the present invention. Fig. 3 is a schematic perspective view showing the cartridge. Fig. 4 is a view showing an opening of a container body. Fig. 5 is a view showing a surface of the container body. Fig. 6 is a view showing an enlarged cross-sectional structure of a differential pressure regulating valve housing chamber. Fig. 7 is a view showing an enlarged cross-sectional structure of a valve housing chamber. Fig. 8 is a view showing an example of a cartridge holder. Fig. 9 is a view showing a first welded film. Fig. 10 is a view explaining in the arrangement of the flow passages of the cartridge according to the invention. Fig. 1 1 is a view showing a welded top sheet. Fig. 12 is a view showing a peeling process of cover label. Fig. 13 is a view showing an ink extraction process. Fig. 14 is a view showing a liquid extraction unit used in the ink extraction process. Fig. 15 is a view showing an injection hole film perforation process. Fig. 16 is a view showing an ink jet process. Fig. 17 is a view showing a liquid injection unit used in the ink injection process. Fig. 18 is a view showing a process of re-welding injection-jet film. Fig. 1 9 (a) is a schematic perspective view showing a state in which an air discharge opening is opened by removing a part of a film, and Fig. 1 9 (b) is a view in Schematic perspective showing a state in which the air discharge opening is sealed after the ink injection. Fig. 20 is a cross-sectional view showing a state in which the air discharge opening is sealed.

DESCRIPTION OF THE PREFERRED MODALITY Next, the best mode to carry out the present invention will be described. Meanwhile, in the following description, the device for recording ink dispenser (hereinafter referred to as a 'recording device'), which is a liquid dispensing apparatus, will be used as an example. The recording device is a device for recording images that register letters or images when downloading liquid droplets (liquid ink) ejected from nozzle openings on a surface of a record sheet (a printing sheet) that is an object to be launched to jet. The device for registration includes an ink cartridge (hereinafter referred to as a 'cartridge') 1 and a cart, to which a registration head is attached. The carriage is connected with an interval motor through a regulating belt and guided to a guiding lever to produce an alternative movement in the width direction of the registration sheet. The cartridge is formed as a box with the upper surface open and attached to a surface facing the recording sheet (a lower surface in the present example) for making nozzles of the recording head exposed. In addition, the cartridge 1 is mounted on the carriage. In addition, ink is supplied to the registration head of the cartridge 1, and images or letters are printed in dot matrix when ejecting droplets of ink to the record sheet of the mobile cartridge. Fig. 1 is a flow diagram illustrating all the processes of a recycling process, through which ink (fill ink) is injected into the used cartridge 1 in order to reuse the cartridge 1. As illustrated in Fig. 1, in the cartridge 1 recycling process, a 'recovery process', in which the cartridge 1 is recovered; a 'sorting process' in which the cartridge 1 is classified; an 'appearance inspection process', in which the appearance of the cartridge 1 is examined; and 'cover label peeling process', in which a top sheet 59, described below is peeled off, are carried out in order. Then, a 'supply hole film peeling process', in which a supply hole film sealing an ink supply opening, described below, is peeled off; an 'ink extraction process', in which the ink remaining in the used cartridge 1 is extracted (remaining ink); an 'injection hole film perforation process', in which a hole is formed in a hole film F of an air discharge opening 21, described below; and an 'ink-jet process', in which ink is injected into the cartridge 1, is carried out in order. After this, a 'injection hole film re-welding process', in which a different injection hole film 90, described below, is re-welded after the hole in the film F is formed; a 'supply hole film re-welding process', in which a supply hole film is soldered; a 'weight inspection process', in which the weight of the cartridge 1 is examined; an "IC data writing process" in which information is written to an IC chip 49, described below; and "IC data reading process" in which IC 49 chip information is read, are carried out in order. Then, a 'batch number printing process', in which batch numbers are printed on the cartridge 1; a 'label adhesion process', in which a label adheres to the cartridge 1; an 'external pressure inspection process', in which an external pressure inspection is carried out on the cartridge 1; a 'packaging process', in which the cartridge 1 is reduced in pressing and packing; a '12h leak check process', in which the leakage of ink or air from the cartridge 1 is examined; and an 'individual confinement process', in which the cartridge 1 is enclosed, are carried out in order. The detailed description will be followed in each process. Next, the cartridge 1 of the embodiment will be described in detail with reference to Figs. 2 to 1 1. Figs. 2 and 3 are schematic perspective views showing an example of the cartridge 1 according to the embodiment. Further, Fig. 4 shows a container body 2 as seen from the opening, and Fig. 5 shows the container body 2 as seen from a surface (hereinafter a surface of the container body 2 opposite the opening it is qualified as the 'container body surface 2'). The cartridge 1 has a planar and oblong container body 2, a surface of which (a left surface in Fig. 2) is open, and a cover member 3 that is welded to and seals the opening. Both the container body 2 and the cover member 3 are made of a synthetic resin.

The container body 2 includes ink slots 35 and 18A formed on the surface thereof, which act as ink flow passages, and an atmosphere communication slot 36, which acts as an atmosphere communication passage. Further, since a sheet of a first film 57 having an atmospheric tension is attached to the surface of the container body 2, the openings of the ink slots 35 and 18A and the atmosphere communication slot 36 are sealed, and thus the ink slots 35 and 18A are formed in the ink flow passage, and the atmosphere communication slot 36 is formed in the atmosphere communication passage. As a result, since the flow passages are formed in the cartridge 1 by sealing the openings in the ink slot 35, the atmosphere communication slot 36 or the like formed on the surface of the cartridge with the first film 5, a container which has relatively complex flow passages, such as ink flow passages and atmosphere communication passages, can be easily formed. Accordingly, a molding tool can be easily designed or processed, which leads to a low manufacturing cost. Next, the structure of the flow passages of the container body 2 will be described in detail. An ink supply opening 4 is formed in a front end surface (bottom surface in the example) of the container body 2, of which the container body 2 is inserted into the cartridge, and grasping arms 5 and 6, which are grasped by a hand when the cartridge 1 is attached and separated, are formed integrally with the container body 2 on the front and rear surfaces (left and right in Fig. 4) of cartridge 1. The ink supply opening 4 houses a valve body (not shown), which opens when an ink supply needle is inserted therein. Meanwhile, in Fig. 3, the reference number 49 denotes an IC chip which acts as a storage unit provided under the grip arm 6 on the side of the ink supply hole 4. The IC 49 chip stores such information. as the amount of ink used in the cartridge 1, the amount of ink remaining in the cartridge 1, and recycling information, described below. These kinds of information are written by the information writing unit (for example, an IC examiner, described below, or similar). A structure-like portion 14 that includes a wall 10 extending almost horizontally, ie, slightly inclined downward, toward the ink supply opening 4 is formed within the opening of the container body 2. The structure-like portion 14 is shape with almost a fixed space of the upper part and both lateral surfaces of the container body 2. A first ink chamber 1 1 accommodating ink is formed in a region below the structure type portion 14. In addition, atmospheric communication passages 13 and 13A communicating the first ink chamber 1 1 to the atmosphere through a direct hole 67 are formed by a gap formed between the structure-like portion 14 and an outer circumferential wall of the container body 2 and by a wall 12 of the structure type chamber 14 provided in a valve housing chamber 8. The cover member 3 is attached to the wall 12 and the outer circumferential wall of the recipient body e 2 to form the atmosphere communication passage 13A. In addition, an upper end of the wall 12 forming the atmosphere communication passage 13A extends almost to the top of the container body 2 to cause the upper end to protrude higher than the liquid surface in the first ink chamber 1 1 when the cartridge 1 is used. As a result, the opening of the atmosphere communication passage 13A is located higher than the liquid surface in the first ink chamber 11, so that the flow of the ink back to the direct hole 67 is avoided as much as possible. The interior of the structure-like portion 14 is divided into right and left regions by a wall 15 having a communication opening 1 5A, through which the ink flows, at the bottom and extends in the longitudinal direction. In addition, a second ink chamber 16 temporarily reserving the raised ink of the t ink chamber 1 1 is formed in the right region of the structure-like portion 14 divided by the wall 15. Furthermore, in the left region a third ink chamber 17, a fourth ink chamber 23, and a fifth ink chamber 34 or the like, and a differential pressure valve composed of a membrane valve 52, a spring 50 and the like are housed therein. The differential pressure valve is a pressure control valve that controls the supply pressure of the ink with respect to the ink supply opening 4 and is provided to store the ink in the cartridge 1 by the pressure control of the valve of pressure control. In itself, the cartridge 1 of the embodiment includes the pressure control valve which controls the supply pressure of the ink with respect to the ink supply opening 4 and stores the ink therein by the pressure control of the valve of pressure control. When this type of cartridge is used, the ink can be moved slowly in the cartridge 1, and consequently, the ink can be easily filled, and the effect of the Invention dramatically improves. In the portion of the t ink chamber 1 1 below the second ink chamber 16, the second ink chamber 16 communicates with the lower surface of the container body 2 to form a liquid lifting passage 18 that lifts the ink from the t ink chamber 1 1 to the second ink chamber 16. An oblong region surrounded by a wall 1 9 is formed in the lower portion of the lifting passage 18, and the communication openings 19A and 19B are formed in the lower portion and upper surface of the wall 19. The lifting passage 1 8 forms a slot-like ink slot 18A in the surface of the container body 2, and the ink slot 18A is sealed by the t film 57. In addition, the lifting passage 1 8 communicates with the second ink chamber 16 at its upper portion through the communication opening 47, and its lower end opening 18B (see Fig. 9) communicates with the t ink chamber 1 1 through an opening 48 formed in the oblong region surrounded by the lower wall 19. As a result, the t ink chamber 1 1 communicates with the second ink chamber 16 through the lifting passage 18, and the ink it is introduced into the second ink chamber 16 of the t ink chamber 1 1. In addition, an ink jet opening 20, which is used when the ink is injected into the t ink chamber 11, is formed at a position on the bottom surface of the container body 2 corresponding to the lifting passage 18. Moreover, an air discharge opening 21 that discharges air during the injection of the ink is formed in the vicinity of the ink injection opening 20. The air discharge opening 21, which forms a second separate opening the ink supply opening 4 communicates with the t ink chamber 1 1, which is an ink reservoir chamber upstream of the differential pressure valve. In the embodiment, ink is injected from the air discharge opening 21 in the 'ink jet process'. That is, when ink is injected into a completely new cartridge, ink is injected from the ink jet opening 20, and when ink is injected into a used cartridge, ink is injected from the air discharge port 21. In the mode, 18.1 8 grams (g) of ink is filled into a new cartridge. In the third ink chamber 17, a wall 22 is formed to extend horizontally with a predetermined space apart from the upper surface 14A of the structure-like portion 14. In addition, the third chamber 17 is divided by a circular arc wall 24 which is communicates with wall 22, and a differential pressure valve housing chamber 33 and the fifth ink chamber 34 are formed in a portion surrounded by the wall 24. The region surrounded by the circular arc wall 24 is divided into two parts of the thickness direction by a wall 25 so as to form the differential pressure valve 33 on a surface facing the fifth ink chamber 34. An ink circulation opening 25A is provided in the wall 25 in order to introduce the fluid ink in the fifth. ink chamber 34 in the differential pressure valve housing chamber 33. A partition wall 26 including a communication opening 26A between the wall 10 and itself is formed in the lower portion of the substantially circular arc wall 24 , and a portion below the dividing wall 26 (left portion in Fig. 4) forms the fourth ink chamber 23. In addition, a partition wall 27 having the communication aperture 27 and extending in the longitudinal direction; and a partition wall 32 having communication openings 32A and 32B at the top and bottom and extending in the longitudinal direction are provided in the lower portion between the circular arc wall 24 and the structure-like portion 14 to form the ink flow passages 28A and 28B. In addition, a circular arc wall 30 is formed in the container body 2 in order to continue towards the upper end of the partition wall 27 and to connect with the substantially circular arc wall 24 and the wall 22. Further, a The region surrounded by the circular arc wall 30 is formed in a filter housing chamber 9, in which a filter in the form of a block (cylindrical in the example) is received. Still further, a direct hole 29 which engages a large circle and a small circle is formed in the circular arc wall 30 which forms the filter housing chamber 9. Furthermore, the direct hole 29 on the side of the large circle is communicates with the upper portion of the ink flow passage 28A, and the direct hole 29 on the small circle side communicates with the upper portion of the fifth ink chamber 34 through the communication aperture 24A provided at the front end of the ink chamber. the substantially circular arc wall 24. As a result, the ink flow passage 28A communicates with the fifth ink chamber 34 through the direct hole 29. Further, the fluid ink in the ink flow passage 28A through of the communication openings 15A, 26A, 32B, 27A or the like of the second ink chamber 16 is filtered by the filter 7 in the filter housing chamber 9 and flows on the large circle side of the direct hole 29. Then, the fluid ink in the direct hole 29 flows in the fifth ink chamber 34 on the small circle side of the direct hole 29 through the communication aperture 24A. The opening of the direct hole 29 on the surface side of the container body 2 is sealed by the first film 57. Here, the second atmospheric tension film 56 is attached to the opening of the structure-like portion 14. That is, the second film 56 is attached to the structure-like portion 14, the walls 10, 15, 22, 24, 30, 42 and the partition walls 26, 27, 32 to form the ink chambers or the flow passages. Meanwhile, the ink supply opening 4 communicates with the lower portion of the differential pressure valve housing chamber 33 through the ink slot 35 formed in the surface and the flow passage made of the first tension film. Atmospheric 57 covering the ink slot 35. The upper and lower ends of the ink slot 35 communicate with the differential pressure valve housing chamber 33 and the ink supply opening 4, respectively. As a result, the fluid ink in the fifth ink chamber 34 passes through the ink circulation opening 25A and the differential pressure valve housing chamber 33, and flows into the ink supply opening 4 of the flow passage. formed with the ink slot 35. Furthermore, on the surface of the container body 2, the atmosphere communication slot 36 is serpentine to increase the resistance of the flow passage as much as possible; and a broad slot 37 is formed which communicates with the atmosphere communication slot 36 and surrounds the differential pressure valve housing chamber 33 and the atmosphere communication slot 36. Furthermore, an oblong recessed portion 38 is formed in a region of the surface of the container body 2 corresponding to the second ink chamber 16. A portion of structure 39 and a rod 40 are formed a deeper passage in the oblong recessed portion 38. In addition, the oblong recessed portion 38 is formed in an atmosphere vent chamber communicating with the atmosphere through the atmosphere communication slot 36 and the slot 37 by deploying an atmospheric tension sheet 55 having an ink repellent property in the structure portion 39 and the rod 40. A direct hole 41 is drilled in the rear surface of the recessed portion 38 and communicates with an elongated region 43 divided by an oval wall 42 in the second ink chamber 16. In addition, the atmosphere communication slot 36 communicates with a region of the recessed portion 38 closest to the surface that the air permeable sheet 55. In addition, a direct omen 44 is drilled at one end of the elongated region 43 opposite the hole direct 41 The direct hole 44 communicates with a communication slot 45 formed on the surface side of the container body 2 and a valve housing chamber 8, which is an atmosphere opening valve chamber, through a hole direct 46 that is drilled to communicate with slot 45.

In the valve housing chamber 8, a direct hole 60 is formed which communicates with a direct hole 67 formed in the atmosphere communication passage 1 3A formed in the first ink chamber 1 1. As a result, the fluid air in the recessed portion 38 through the atmosphere communication slot 36 and the slot 37 reaches the valve housing chamber 8 through the direct hole 41, the elongated region 43, the direct holes 44, 46, and reaches the first ink chamber 1 1 of the valve housing chamber 8 through the direct hole 60, the direct hole 67, and the atmosphere communication passage 13, 13A. In addition, the valve housing chamber 8 is open on the side where the cartridge is inserted (bottom surface in the example), by which, as described below, an identification piece or operation bar provided in a main body of a recording device can be inserted into the valve housing chamber 8, and an atmosphere opening valve is housed, which is opened by inserting the operation bar in the upper portion and keeping it open all the time. Fig. 6 shows a structure in section cut away around the fifth ink chamber 34 and the differential pressure valve housing chamber 33. Meanwhile, the surface of the container body 2, in which the housing of Differential pressure valve 33 is placed, it is located on the right of the drawing. A membrane valve 52, composed of a spring 50 and an elastically deformable material, such as an elastomer, and having a direct hole 51 at its center is received. The membrane valve 52 includes an annular thick portion 52A around it and fits the container body 2 through the structure portion 54 integrally formed with the thick portion 52A. In addition, the spring 50 is supported so that one end thereof rests on a spring receiving portion 52B of the membrane valve 52d and the other end thereof rests on a spring receiving portion 53A of a valve member. cover 53 covering the differential pressure housing chamber 33. With the configuration above, the flow of the ink passing through the ink circulation opening 25A of the fifth ink chamber 34 is clogged by the membrane valve 52. If the pressure of the ink supply opening 4 is reduced in this state, the membrane valve 52 is released from a valve positioning portion 35B due to the negative pressure against the inciting force of the spring 50. In this case , the ink passes through the direct hole 51 and the flow passage formed with the ink slot 35, and flows into the ink supply opening 4. When the pressure of the ink supply opening 4 reaches a By default, the membrane valve 52 elastically contacts the valve positioning portion 25B by the urging force of the spring 50, and thus the flow of the ink becomes clogged. Accordingly, the ink can be discharged from the ink supply opening 4 by repeatedly carrying out the above operation while the pressure of the ink supply opening 4 remains at a fixed negative pressure. Fig. 7 shows a sectional structure of the valve housing chamber 8 for atmosphere communication. Meanwhile, the surface of the container body 2 is placed to the right of the drawing. A direct hole 60 is drilled in a wall that divides the valve housing chamber 8, and a pressing member 61 that includes an elastic member, such as rubber, is movably inserted into the surface of the container body 2 while the surrounding area of the pressing member 61 is held by the container body 2. A valve body 65 supported by an elastic member 62 and urged towards the direct hole 60 is all the time disposed at the forward end of the pressing member 61 (in the direction of advance). As the elastic member 62, a leaf spring having its lower end fixed by a projection 63 and its central portion regulated by a projection 64 is used in the example. On the one hand, an arm 66 is disposed opposite the pressing member 61. A portion (a lower end in the example) of the arm 66 in the direction that the cartridge 1 is inserted, fits the container body 2, through a return fulcrum 66A located within an operation bar 70, described down. In addition a slidable portion (a top portion in the example) of the arm 66 projects obliquely with respect to an inlet passage of the operation bar 70. A protruding portion 66B that elastically presses the pressing member 61 is formed at the front end of the bar. arm 66. With the configuration above, as described above, the direct hole 67 is connected to the recessed portion of atmosphere communication 38 through the direct hole 60, the valve housing chamber 8, the direct hole 46, the slot 45, direct hole 44, elongated region 43, and direct hole 41 when valve body 65 is opened. In addition, the identification projection portion 68 is provided in a portion of the valve housing chamber 8 closest to the portion, through which the cartridge is inserted, that the arm 66 (lower in the example) in order to Determine if the cartridge 1 is compatible with the device for registration. The identification outgoing portion 68 is provided at a site, at which the determination can be carried out by the identification part (operation bar) 70A, before the ink supply opening 4 communicates with a needle. ink supply 72 (see Fig. 8), and the valve body 65 opens. With the above configuration, if the cartridge 1 is mounted on a cartridge holder 71 having the operation bar 70 which is on the lower surface as shown in Fig. 8, the operation bar 70 rests on the oblique arm 66, and the pressing member 61 is inclined towards the valve body 65 when the cartridge 1 is pushed. As a result, the valve body 65 is released from the direct hole 60 and opens the recessed portion of atmosphere communication 38 to the atmosphere through the direct hole 46, the slot 45, the direct hole 44, the region 43, and the hole direct 41, as described above. Further, when the cartridge 1 is removed from the cartridge holder 71, the operation rod 70 no longer supports the arm 66, and thus the valve body 65 seals the direct hole 60 by the inciting force of the elastic member 62, and the portion Ink housing gets clogged from the atmosphere. Then, the first atmospheric tension film 57 adheres to the surface in order to cover at least one region where the recessed portion is formed in a state that all members, such as valves, are incorporated in the container body 2. As a result a capillary forming the atmosphere communication passage through the recessed portion and the first film 57 is formed on the surface. Here, the arrangement of the flow passages including the capillary or the formation of the flow passage will be described in detail. As described above, in the cartridge 1, the openings of the ink slot 35, the direct hole 29, the ink slot 1 8A, the slot 45, the atmosphere communication slot 36 and the recessed portion 38 are sealed to the welding a sheet of the first film 57 to the surface of the container body 2. The ink slot 35, the direct hole 29, the ink slot 1 8A and the slot 45 are formed in the ink passage respectively, and the slot Atmosphere communication 36 and recessed portion 38 are formed in the atmosphere communication passage respectively. Fig. 9 shows the cartridge 1, to which the first film 57 is affixed. In this case, the first film 57 is coated on the surface of the container body 2 and then pressed by a hot pressing plate for thermal welding. Here, the atmosphere communication slot 36 is a thin and shallow groove that curves in a complex manner in order to prevent evaporation of the ink, as much as possible, and the excessive increase in the resistance of the passage. Accordingly, when the atmosphere communication slot 36 is sealed by the first film 57, the atmosphere communication slot 36 can be crushed and thus the airflow can be interrupted if the welding height is not reached with a high pressure. . Meanwhile, it is desirable that the recessed portion forming the ink passage of the ink slot 35 or the like be welded with careful attention to the solder firmness in order to prevent leakage of ink. In addition, as shown in Fig. 10, a flow passage is arranged to divide the surface of the container body 2 into two regions, i.e., a region (a) wherein a recessed portion forming the passageway of the container is formed. ink flow, while the ink slot 35, the direct hole 29 or the like occupies a lot of them, and a region (b) where the atmosphere communication slot 36 is formed. In addition, the slot 31 that does not form the Ink flow passage is formed in an edge portion between the regions (a) and (b) on the surface of the container body 2. Even more, a scale wherein the first film 57 is pressed by the hot pressing plate at the same time when it is attached to the container body 2 (hereinafter referred to as 'welding scale') it is divided into a region (a) where the accuracy of the welding height needs to be achieved, and a region (b) in where the firmness of the welding is needed, so that the conditions of the soldering are controlled independently in regions (a) and (b). As a result, since both the welding accuracy and the weld strength can best be achieved by controlling the welding state in a relatively narrow portion, the welding conditions can be easily extracted. Still further, the welding scale of the first film 57 is divided into a region (b) wherein the ink slot 35 is formed which forms the ink flow passage downstream of the differential pressure valve which generates negative pressure in the cartridge 1, and a region (a). That is, since the shape of the flow passages, such as the ink flow passage and the atmosphere communication passage, is relatively complex, complex flow passages can easily be formed in the cartridge 1 having the differential pressure. Further, since the groove 31 that does not form the flow passage is placed in the edge portion between the divided welding scales (a) and (b), a welding and pressing surface, to which the first film 57 it is solid, it can be overlapped between the divided welding scales (a) and (b), and thus improves the degree of release when designing a welding device. In Fig. 9, the reference number 57A denotes a portion of cut provided in a portion of the first film 57 corresponding to the slot 31. As shown in Fig. 11, the cartridge 1 has a top sheet 59 covering the first film 57 adhered to the surface of the container body 2. As a result, the first film 57 is protected by the top sheet 59, and The leakage of ink can be reduced due to damage to the first film 57 and evaporation of the ink. In the drawing, the reference number 59A denotes a portion of cut provided in a portion of the top sheet 59 corresponding to the slot 31. The top sheet 59 is thicker than the first film 57. That is, in the cartridge 1, the first film 57 is thinner than the upper sheet 59. As a result, when the ink slot 35, 18A, the atmosphere communication slot 36 and the like are sealed when welding the first film 57, since the first film 57 can easily cover the surface of the container body 2, the solder firmness or welding accuracy improves well. In addition, the first film 57 can be effectively protected by the relatively thick upper sheet 59. Still further, the upper sheet 59 has an extended region 59B that covers the lower surface of the container body 2, and the extended region 59B covers the ink injection opening 20 and air discharge opening 21. As described above, a top sheet sheet 59 can cover the ink injection opening 20 and the air discharge opening 21, and thus the process can be simplified or the number of parts can be reduced.

Meanwhile, the opening of the container body 2 adheres to the second atmospheric tension film 56 by thermal welding or the like in order to make the atmospheric tension container body 2 with respect to the structure-like portion 14, the walls 10 , 1 5, 22, 24, 30, 42 and the partition walls 26, 27, 32. In addition, the cover member 3 is set and adjusted to the opening by welding or the like. As a result, the regions divided by the respective walls are sealed to communicate with each other only through the communication opening or the opening. In addition, the opening of the valve housing chamber is also sealed with the third atmospheric tension film 58 by thermal welding or the like, thereby terminating the cartridge 1. If the ink housing portions are sealed by the first and second atmospheric tension films 56 and 57 or the like as described above, the container body 2 can be easily molded, and the vibration of the ink resulting from the reciprocating movement of the cartridge can be absorbed by the deformation of the first and second films 56 and 57, and thus the ink pressure can be kept constant. After this, an ink jet tube is inserted into the ink jet opening 20, and then sufficiently thin, ink is injected in a state where the air discharge aperture 21 is opened. After the injection is completed, the ink injection opening 20 and the air discharge opening 21 are sealed by an injection hole film F and the top sheet 59. Since the cartridge 1 having the configuration above is obstructed from the atmosphere by the valve or the like, the sgasa c level of the ink can be maintained sufficiently. Further, when the cartridge 1 is mounted to the cartridge holder 71, if the right cartridge 1 is mounted to the cartridge holder 71, the cartridge 1 enters the cartridge holder to a position where the ink supply opening 4 is inserted. on the ink supply needle 72, and the direct hole 60 is made open by the operation bar 70 as described above, whereby the ink housing portion communicates with the atmosphere, and the valve of the ink opening The ink supply 4 is also made open by the ink supply needle 72. Meanwhile, when the wrong cartridge 1 is mounted to the cartridge holder 71, the identification projection portion 68 rests on the identification part 70A of the ink support. cartridge 71 before the ink supply opening 4 reaches the ink supply needle 72, and thus the cartridge 1 can no longer enter. In the above state, since the operation bar 70 also can not reach the arm 66, the valve body 65 remains in a sealing state, and the ink housing portion does not open towards the atmosphere, and thus prevents evaporation of the ink. If the right cartridge 1 is mounted to the cartridge holder 71, and the ink is consumed by the recording head during printing, since the pressure of the ink supply opening 4 is reduced to a prescribed pressure or less, the membrane valve 52 is made open as described above. In addition, if the pressure of the ink supply opening 4 increases, the membrane valve 52 closes. With the operation above, the ink maintained at a predetermined negative pressure flows in the recording head. If the ink is consumed in the recording head, the ink in the first ink chamber 1 1 flows into the second ink chamber 16 through the lifting passage 18. The fluid air bubbles in the second ink chamber 16 rise due to the buoyant force, and only ink flows in the third ink chamber 17 through the communication aperture 15A in the lower portion. The ink in the third ink chamber 17 passes through the communication aperture 26A of the partition wall 26 formed at the lower end of a substantially circularly formed wall 24 and the fourth ink chamber 23 and flows into the ink flow passages 28A and 28B. The fluid ink through the ink flow passage 28A flows into the filter housing chamber 9 and is then filtered through the filter 7. The ink passed through the filter housing chamber 9 flows from the side of the large circle to the side of the small circle of the direct hole 29, and then flows into the upper portion of the fifth ink chamber 34 through the communication aperture 24A. After this, the fluid ink in the fifth ink chamber 34 flows in the differential pressure valve housing chamber 33 through the ink circulation opening 25A, and then flows into the ink supply opening 4 to a negative pressure predetermined by the opening and closing operation of the membrane valve 52 as described above. Here, the first ink chamber 1 1 communicates with the atmosphere through the atmosphere communication passages 13, 13A, the direct hole 67, the valve housing chamber 8 and the like and is maintained at atmospheric pressure. Therefore, the negative pressure is induced, and thus the flow of the ink is not interrupted. Even though the ink in the first ink chamber 1 1 flows backward and reaches the recessed portion 38, the recessed portion 38 is provided with the air permeable sheet 55 having an ink repellent property, and thus the air permeable sheet. 55 communicates the recessed portion 38 with the atmosphere while interrupting the discharge of the ink. As a result, it can be prevented before the ink flows into the atmosphere communication slot 36 and then the atmosphere communication slot 36 is clogged by the solidification of the ink. As described above, the cartridge 1 includes the ink slot 35 or the like or the atmosphere communication slot 36 formed on the surface of the container body 2, and the flow passages are formed by sealing the openings in the slot of ink 35 or the like or the atmosphere communication slot 36 with the first film 57, and thus the container including complex flow passages, such as the ink flow passage and the atmosphere communication passage, can be molded easily, and the molding tool can be easily designed and manufactured. As a result, the manufacturing cost can be reduced. Meanwhile, although the example shows the cartridge using the column shape filter 7, the invention is not limited thereto, and various shapes and sizes of the filter 7 can be used in the cartridge 1 if the filter 7 has a shape of block. Then, the recycling process of the cartridge used will be described in reference again to Fig. 1. First, the used cartridges 1 are retrieved for each type or color in 'the recovery process' and then the recovered cartridges 1 are classified in 'the sorting process'. In the 'sorting process' the examiner IC reading the recycle information stored in the chip IC 49 reads the recycle information stored in the chip IC 49 of the cartridge 1. The recycling information includes the date of manufacture of the cartridge, and it is determined, whether the ink is extracted or not when determining whether the predetermined period elapses or not of the manufacturing date read. For example it is determined, if a year and a half elapses or not from the date of manufacture of the cartridge, and if not a year and a half elapses, filler ink is injected additionally in a state that the ink remains in the cartridge 1 without any 'ink extraction process'. On the other hand, if a year and a half elapses, as the example, the 'ink extraction process' is carried out, and ink is then injected for filling after the remaining ink is removed from the cartridge 1.

Like the recycling information, the recycling number or similar is written. In this case, the recycling information is written in the IC data writing process. Then, in the 'appearance inspection process', the appearance of the rated cartridge 1 is examined. In this process, bad cartridges 1 such as a cartridge noticeably contaminated by ink due to leakage of ink or the like, a cartridge that has severe appearance damage such as a cartridge that does not have hold arm, a cartridge that has no chip IC or similar are classified with the naked eye and removed from recovered cartridges 1. After this, in the 'cover label peeling process', between the upper sheet 59, the extended region 59B covering the ink injection opening 20 and the air discharge opening 21 is peeled off from the lower surface of the container body 2. Since 'the cover label peeling process' in the present embodiment is carried out prior to the 'ink extraction process', the extended region 59B of the upper sheet 59 is peeled off, while the film F is held attached to the lower surface of the container body 2 to maintain the sealing state of the ink injection opening 20 and the air discharge opening 21. In addition, the 'cover label peeling process' can be carried out after the 'ink extraction process' is carried out. As shown in Fig. 12, in 'the color label peeling process', the extended region 59B is cut from the upper sheet 59 with scissors, cutter or the like and then peeled off from the lower surface of the body 2. After that, in the 'opening hole film peeling process', a supply opening film (not shown) sealing the ink supply opening 4 of the cartridge 1 is peeled off or the similar. After that, in 'the process of exfraction of ink', the ink remaining in the cartridge 1 is extracted. As shown in Fig. 13, in 'the process of extraction of ink', a process of extraction and suction, in which the ink remaining in the used cartridge 1 is sipped and extracted, and a process of checking the remaining quantity, in which it is examined if the amount of ink remaining in the cartridge 1 after the remaining ink is extracted in the extraction and suction process occupies a predetermined proportion or less than the total amount of the ink to be filled in a new cartridge, they are cape. Fig. 14 shows a device for extracting liquid in a liquid filling device according to the invention that fills ink to the used cartridge 1. The device includes a liquid extraction unit, described below, which extracts the ink remaining in the cartridge 1; a measuring device 89, which is a measuring unit that measures whether the amount of ink remaining in the cartridge 1 after the remaining ink is removed occupies a predetermined proportion or less than the total amount of the ink; and a liquid injection unit, described below. The liquid extraction unit includes an ink siphon 81 that recovers the cartridge 1 to be refilled after removing the ink remaining in the cartridge 1; a suction pump 83 which reduces the pressure in the ink trap 81 through a siphon pressure reducing tube 85, described above; the siphon pressure reducing tube 85 for reducing the pressure of the ink siphon 81 by suction of the suction pump 83; and an ink suction tube 87 for slurping the remaining ink from the cartridge 1. An ink receiver 81 to which the remaining ink sorbed in the ink trap 81 is received is provided in the ink trap 81. An extraction template for removing the remaining ink in the cartridge 1 from the ink supply aperture 4 is provided. at one end of the ink suction tube 87. In addition, the end (extraction jig) connects to the ink supply opening 4, and the other end is disposed in the ink receiver 81 a of the ink siphon 81. Fundamentally, the extraction jig has the same structure as that of a mounting portion, to which the cartridge is mounted, in the liquid spout apparatus and includes the operation bar 70 to open the ink supply needle 72 inserted in the ink supply opening 4 or the recessed portion of atmosphere communication 38 to the atmosphere. The extraction template is disposed above the ink siphon 81 and holds the cartridge 1 while facing the ink supply opening 4 outwards. As a result, the remaining ink falls into the ink siphon 81 through the ink suction tube 87 when it is extracted from the extraction template. One end of the siphon pressure reducing tube 85 is connected to the suction pump 83, and the other end is disposed at an upper portion within the ink siphon 81. In the extraction and suction process, the liquid filling device having the above configuration operates the suction pump 83 and reduces the pressure of the ink siphon 81 to a predetermined negative pressure (e.g., approximately 100 Torr or 13.3 kPa ) through the siphon pressure reducing tube 85. In addition, the remaining ink is removed from the cartridge 1 through the ink supply opening 4, and the remaining ink withdrawn is received by the ink receiver 81 a from the siphon of ink 81. In the embodiment, the ink remaining in the used cartridge 1 is withdrawn from the ink supply opening 4 as above. As described above, when the ink remaining in the used cartridge 1 is withdrawn from the ink supply opening 4, ink is injected after the remaining ink is removed. Accordingly, the effect of the remaining lower ink can be reduced. In addition, since the ink remaining in the cartridge 1 is removed from the ink supply opening 4, the direction of ink flow during extraction is identical to the direction of ink flow when the cartridge is used, so that the ink can be removed slowly without difficulty. In addition, since the extraction template having the same configuration as that of the liquid dispensing apparatus is used, common parts can be used, and thus the cost of the device can be reduced. Furthermore, the remaining ink can be removed as slowly as when the cartridge is used. When the remaining ink is removed in the cartridge 1, a predetermined amount of liquid corresponding to the surface area of the cartridge 1 is made to remain in the cartridge 1. Specifically, the amount of ink remaining in the cartridge 1 is approximately 2.5% volume (0.5 g in the mode) of the total amount of the ink to be filled. As described above, if the predetermined amount of ink according to the surface area of the cartridge 1 is made to remain, the fluidity of the ink for a portion, in which the ink flows with difficulty (e.g., ink flow passage) narrow) or a portion, in which ink leaks, improves, and thus the ink filling characteristic improves, and air bubbles are seldom present. In this case, a larger amount of ink remains if the surface area of the cartridge 1 is large, and a small amount of ink remains if the surface area of the cartridge 1 is small, whereby the function above works efficiently. After that, in the process of checking the remaining quantity, it is examined whether the amount of ink remaining in the cartridge 1 after the ink is extracted occupies the predetermined proportion of the total amount of the ink to be filled in the new cartridge . The default ratio is 6% volume in the remaining amount checking process. That is, it is examined whether the amount of the ink remaining in the cartridge 1 occupies 6% volume or less of the total amount of the ink to be filled in the new cartridge. In the modality, since 18.18 grams (g) of ink is filled into the new cartridge, it is examined whether the amount of ink remaining in the cartridge 1 is 1 g or less, which is 6% (v / w) of 1 8.18 9- Since the predetermined proportion in the process of checking the remaining amount is 6% volume, it is possible to ensure the quality of the liquid until the influence of the lower liquid remaining in the cartridge can be ignored, and the cartridge used can be refreshed When replacing the liquid in the cartridge used to fill the liquid safely. In addition, the performance of the liquid to be filled can be ensured while the remaining liquid is sufficiently discharged, and thus both the quality and the yield of the liquid in the recycling cartridge can be ensured. As described above, 'the ink extraction process' is completed by leaving 0.5 to 1 g of ink in the cartridge 1, and then the next process begins. After this (see Fig. 1), in the 'injection hole film perforation process', a part of the film F welded to the vicinity of the air discharge opening 21 of the cartridge 1 containing 1 g or less than the remaining ink to seal the air discharge opening 21 is removed to communicate the air discharge opening 21 to the atmosphere. As shown in Fig. 1 5, in 'the injection hole film perforation process', especially, when the part of the film F of the air discharge opening 21 is removed, the part of the film F of the air discharge opening 21 is cut by a film removal unit (for example), knives or cutter) or the like, and then a hole is formed in the film F of the air discharge opening 21. As described above, the part of the film F of the air discharge opening 21 is removed by trimming the part of the film F and by forming a direct hole in the film F of the air discharge opening 21. In addition, in FIG. 'the ink jet process', ink is injected into the cartridge 1 of the air discharge opening 21. As the air discharge opening 21 can be communicated without causing damage to the cartridge 1 or the like by forming a direct hole in the film F of the air discharge opening 21 such as, and thus the rare re-weld surface Sometimes it is damaged, an injection hole film 90 (described later) can be soldered without damage to a surface, thus achieving safe re-welding. In addition, the liquid can be effectively injected in a short time while no air bubbles enter the cartridge 1. Further, although the removal of the film F to open the air discharge opening 21 in the present embodiment is performed in such a way that the part of the film F is cut along the edge of the air discharge opening 21 for forming the direct hole in the film F, the present invention should not be restricted from the same or the like, and the removal of the film F to open the air discharge opening 21 can be carried out in several ways. For example, as shown by a dotted chain double line in Fig. 1 5, the film F is cut along the dotted chain double line so that the left side of the film F is removed to open the air discharge opening 21, while the remaining right part of the film F maintains the sealing state of the ink ejection opening 20. Alternatively, the entire film F can be removed to open both the air discharge opening 21 as the ink jet opening 20. After this, in 'the ink jet process', ink is injected into the cartridge 1. As shown in Fig. 16, in the 'inkjet process', when using a liquid injection unit, described below, a vacuum pulling process, in which the pressure of the cartridge 1, of which the ink is extracted in the 'ink extraction process', reduced to a predetermined degree of vacuum (37 Pa in the example) or less; an injection process, in which ink is injected into the cartridge 1; an ink replenishment process, in which ink is filled again in temporary storage tank 93, described below; an ink-suction process, in which a predetermined amount of ink is drawn from the cartridge 1 through the ink supply opening 4 after ink is injected in the injection process; and a finishing process, in which 'the inkjet process' is completed, are carried out in order. Fig. 17 shows the device for liquid injection of the liquid filling device according to the invention. In the device, the liquid injection unit includes the temporary reservoir tank 93 having a communication tube 91 communicating with the atmosphere connected to the upper portion thereof and reserving the ink to be filled in the cartridge 1 above the cartridge 1 examined to contain the amount of the remaining ink measured by the measuring device 89 equal to or less than the predetermined proportion (6% volume); a supply tube 95 connected to the ink tank housing the ink in order to supply the ink to the temporary storage tank 93; the injection tube 97 for injecting the ink into the temporary storage tank 93 into the cartridge 1 of the air discharge opening 21; the ink siphon 99 which extracts and houses the ink in the cartridge 1; the suction pump 101 which reduces the pressure of the ink trap 99 through the siphon pressure reducing tube 103, described below; the siphon pressure reducing tube 103 for reducing the pressure of the ink siphon 99 by suction of the suction pump 1 01; and an ink suction tube 105 for sipping the ink from the cartridge 1. The liquid ejection unit injects ink into the examined cartridge to contain the remaining amount of ink measured by the measurement device 89 equal to or less than the predetermined ratio (6% volume) by the configuration above. An opening and closing valve of the communication tube 91 to open and close the communication tube 91 and control the ventilation of the air for the temporary storage tank 93 is provided in the communication tube 91. In addition, an opening and closing valve of the supply tube 95a that opens and closes the supply tube 95 and controls the supply of the ink to the temporary storage tank 93 is provided in the supply tube 95. In addition, a valve of opening and closing of the injection tube 97a that opens and closes the injection tube 97 and controls the injection of the ink into the cartridge is provided in the injection tube 97. The ink receiver 99a which receives the remaining ink sorbed in the siphon Ink 99 is provided in the ink trap 99. A suction template for slurping the ink in the cartridge of the ink supply opening 4 is provided in one end of the ink suction tube 105. In addition, the end, in which suction insole is provided, connects to the ink supply opening 4, and the other end is disposed in the ink receiver 99a of the ink siphon 99. The suction insole holds the cartridge 1 with the ink supply opening 4 facing upwards in the suction template. That is, the cartridge 1 is disposed lower than the suction jig with the ink supply opening 4 facing upwards. With the configuration above, when the ink in the cartridge includes air bubbles, the air bubbles near the ink supply opening 4 can be collected and thus the air bubbles near the ink supply opening 4 can be suck and stir safely. Although the ink supply needle 72 to be inserted into the ink supply opening 4 is provided in the suction jig, no operation bar 70 is provided. One end of the siphon pressure reducing tube 1 03 is connected to the suction pump 101, and the other end is disposed in the upper portion of the ink siphon 99. A liquid containing portion 107 having a volume corresponding to the amount of liquid sorbed from the ink supply opening 4 in the ink suction process, described below, (about 4 cc in the mode) is provided in the ink suction tube 1 05. In addition, an opening and closing valve for opening the upstream suction tube 1 05a that opens and closes the suction tube of ink 1 05 between the cartridge 1 and the liquid container portion 1 07 and controls the suction of the ink in the liquid container portion 107 is provided upstream of the liquid container portion 1 07 in the ink suction tube 105 In addition, an opening and closing valve of the downstream suction tube 105a that opens and closes the ink suction tube 105 between the ink trap 99 and the liquid container portion 107 and controls the suction of the ink in the siphon Ink 99 is provided downstream of the liquid container portion 1 07 in the ink suction tube 1 05. The ink trap 99, the suction pump 101, the ink suction tube 105, the opening valve and closing of the upstream suction pipe 105a, the opening and closing valve of the downstream suction pipe 105b, the liquid containing portion 107 and the like act as the suction unit which draws a predetermined amount of ink from the cartridge 1 through the ink supply opening 4. In the 'vacuum induction process', the suction pump 101 is activated, and the opening and closing valve of the upstream suction tube 105a and the opening and closing valve of the suction tube downstream 1 05b are closed. In addition, the opening and closing valve of the communication tube 91 a, the opening and closing valve of the supply tube 95 a, and the opening and closing valve of the injection tube 97 a are closed, and the pressure in the cartridge 1 reduces to be on the scale from about 600 Pa (about 5 torr) to about 3800 Pa (about 28 torr). The degree of vacuum in the cartridge 1 can preferably be set on a scale of 5 to 38 torr, more preferably on a scale of 1 0 (approximately 1300 Pa) to 28 torr when controlling the suction of the suction unit by, for example, a suction control unit or similar that controls the suction unit. In the injection process, the activation of the suction pump 101 is stopped, the opening and closing valve of the communication tube 91 a and the opening and closing valve of the injection tube 97a are opened, and the opening valve and upstream suction tube closure 105a, opening and closing valve of supply tube 95a, and opening and closing valve of suction tube downstream 105b are closed. As a result, the ink in the temporary storage tank 93 is injected from the air discharge opening 21 in the cartridge 1, the pressure of which is reduced in advance to a scale of approximately 600 to 3800 Pa, and which is it examines to contain the remaining amount of ink equal to or less than 6% volume (1 g in the mode) in the remaining amount checking process. As described above, the ink is injected into the cartridge 1 in a state where the pressure of the cartridge 1, from which the ink is drawn in 'the ink extraction process', is reduced in advance to a scale of 600 to 3800 Pa. As a result, since the ink is injected in a state where the air in the cartridge 1 is sufficiently removed, the ink can be slowly filled while no air bubbles enter the cartridge 1. Particularly, a cartridge in which a pressure control valve is constructed, like the cartridge of the mode, is effective since the resistance of the air passing through the pressure control valve exerts a bad influence on a property of filling or leaving air bubbles when air bubbles are present in the cartridge 1. In addition, since the pressure in the cartridge is not greatly reduced, it can be prevented that a small amount of ink remaining in the cartridge 1 will evaporate and solidify, or a severe bubbling exerts a bad influence on a filling property. Further, since it is examined whether the amount of ink remaining in the cartridge 1 after the ink is removed occupies the predetermined proportion of the total amount of the ink to be filled in the cartridge, and the ink is only injected into the cartridge. cartridge examined to contain the remaining amount of ink equal to or less than the predetermined ratio, it is possible to control the amount of ink remaining in the cartridge 1 so that the effect of the remaining ink towards the ink to be filled in the cartridge 1 (for example, lower ink that has the reduction of level jdesgagado, increased viscosity due to drying or the like) can be almost ignored, and thus can ensure the quality of the ink in the cartridge used 1. Furthermore, the performance of the ink to be refilled can be ensured while the remaining ink is sufficiently discharged, and both the quality and the yield of the ink in the recycled cartridge can be ensured. Still further, the liquid filling device extracts the remaining ink in the cartridge used 1 by the liquid extraction unit. In addition, the measuring device 89 measures whether the amount of ink remaining in the cartridge 1 after the remaining ink is removed, occupies the predetermined proportion or less, and the liquid injection unit injects fill ink into the cartridge which contains the amount of the remaining ink equal to or less than the predetermined proportion of the total amount of the filled liquid in the new cartridge, and thus the current cost or recycling cost of the device can be decreased. Further, since tub is injected into the cartridge 1, from which the ink is drawn in the ink extraction process, from the air discharge opening 21, which is the second opening, not from the supply opening of the 4 ink, the ink can be injected in a short time while no air bubbles enter. Still further, since the air discharge opening 21 is an opening communicating with the upstream ink reservoir chamber (the first ink chamber 11) by the differential pressure valve (pressure control valve) composite of the membrane valve 52, the spring 50 or the like, the ink is injected in the same direction as the direction of ink flow when the cartridge is used, and thus the ink can be injected slowly while seldom becoming entangled or there are bubbles of air. After that, in the ink replenishment process, the opening and closing valve of the communication tube 91 a and the opening and closing valve of the supply tube 95a are opened, and the opening and closing valve of the suction tube waters above 105a, the opening and closing valve of the injection tube 97a and the opening and closing valve of the downstream suction tube 105b are closed, and thus ink in the ink tank is supplied to the temporary storage tank 93. In the ink suction process, the suction pump 101 is activated, and the opening and closing valve of the suction tube downstream 1 05b is opened. In addition, the other opening and closing valves close, and the predetermined negative pressure (approximately 100 Torr, i.e., approximately 133,000 Pa in the mode) is retained in the liquid container portion 107. After that, the valve is closed of opening and closing the downstream suction tube 1 05b, and opening and closing valve of the upstream suction tube 105a is opened, and thus the ink is sucked out of the cartridge 2 as much as the volume of the liquid containing portion 107 (approximately 1 .12 g: 1 to 4 ce in the modality). As described above, in the ink suction process, the negative pressure applied to the vicinity of the ink supply opening 4 is abruptly increased from a state where the predetermined negative pressure accumulates in the liquid container portion 107 to the opening the opening and closing valve of the upstream suction tube 105a provided upstream of the liquid container portion 107. Accordingly, even the ink containing filled air bubbles in the cartridge 1 is violently sucked, and the ink that does not contain air bubbles is filled in the ink supply opening 4 or the like, and thus liquid can be jetted out of securely from the liquid spout apparatus. As described above, since intense negative pressure can be applied to the vicinity of the ink supply opening 4 without any particular increase in suction force, air bubbles or liquid can be sucked safely with simple equipment.

Further, after ink is injected into the cartridge 1, a predetermined amount of ink is drawn from the cartridge 1 through the ink supply opening 4. Consequently, there are rarely any air bubbles in the cartridge 1 when the quantity The predetermined ink is sucked through the ink supply opening 4 after the injection of the ink. In addition, air bubbles can be removed around the ink supply opening having the greatest effect, and thus the filled cartridge can ensure the drip stability of the liquid jet apparatus as well as the new cartridge. Furthermore, when air bubbles are removed, no pressure is applied to the cartridge 1 on the outside, and thus the cartridge is rarely damaged, and the cartridge can be recycled more times. As described above, in the 'ink suction process', at least the amount of the ink corresponding to the volume of the flow passage of the differential pressure valve to the ink supply opening 4 in the supply opening of the ink 4 in the cartridge 1 is sucked out of the liquid containing portion 107 in constant volume and vacuum degree, and the ink is sipped and stored in the liquid containing portion 107 having the volume corresponding to the amount of the liquid absorbed from the liquid. the ink supply opening 4. With the above operation, the air bubbles in the flow passage of the differential pressure valve to the ink supply opening 4 can be removed safely. Even when there are air bubbles upstream of the differential pressure valve, since air bubbles can not enter a downstream portion of the differential pressure valve, blasting problems can be reliably prevented. In addition, since the ink can be sipped from the ink supply opening 4 as well as the volume of the liquid containing portion 107 by slurping and storing the ink in the liquid containing portion 107 having the volume corresponding to the amount of liquid sucked from the ink supply opening 4 in 'the ink suction process', a constant volume of ink can be sucked all the time, and the ink loss due to excessive suction or the remaining air bubble The lack of suction can be prevented safely. In the finishing process, the activation of suction pump 1 01 is stopped, and all valves are closed to complete the 'ink injection process'. After that, the following process begins. Further, in case where the entire film F is removed to open both the air discharge opening 21 and the ink injection opening 20, it is necessary to seal the ink injection opening 20. prior to the ink injection process. ' Accordingly, in this case, in the same way as the 'injection hole film re-welding process' described below, the ink injection aperture 20 is sealed by a film so that the film is attached to a surface of the ink cartridge different from the originally welded surface, and then the 'ink injection process' is carried out. In the 'injection hole film re-welding process' (see Fig. 1), a heater 1 13, the re-weld unit, re-welds the injection-hole film 90 to a surface (flat surface) ) different from the originally welded surface (flat surface) in order to cover the direct hole formed in the film F and to seal again the air discharge opening 21, through which ink has been injected in the ink injection process . With the above process, it is possible to obtain welding quality by ensuring solder firmness that has no liquid leakage with no change in the shape of the cartridge 1. In addition, since a new film is used as the injection hole film 90, security against deterioration of life can be ensured. further, since the injection hole film 90 is soldered to the portion different from the originally welded surface, the welding safety increases. Especially, as shown in Fig. 18, an inclined surface 1 1 1 is formed which slopes downwardly from the cartridge 1 of the opening in the air discharge opening 21 of the cartridge 1. The re-welded surface is formed by the heater 1 13 in a portion deeper than the surface originally welded around the air discharge opening 21. With the configuration above, the re-welded surface is placed deeper than the surroundings and covered with the injection-hole film 90, and thus the re-welded surface is seldom damaged while the cartridge is being used. Thus, the film can be soldered to a surface without any damage, and thus the film can be soldered safely again. More specifically, the injection hole film 90 is attached to the inclined surface 1 1 1 as the resolled surface. Then, since the film is soldered to the inclined surface 1 1 1 that slopes downwardly from the cartridge 1 of the opening edge, the film can be easily welded with a solder jig (heater 1 13) along the the slope, and thus the air discharge opening 21 can be sealed more securely. Meanwhile, in the re-welding, it is possible to use an elastic film, and thus the injection hole film 90 changes the shape for re-welding, and to use a non-elastic film, and thus the injection hole film 90 it wrinkles for re-welding. In this case, the air discharge opening 21 can be hermetically sealed along the shape of the re-welded surface, and thus the cartridge looks well done and leakage of ink can be prevented safely. According to the filler cartridge, users can e the fill cartridge that has welding quality that ensures a weld firmness that includes no leakage of liquid without any change in the shape of the cartridge. In addition, since a new film is used as the injection hole film 90, security against deterioration of life can be ensured. In addition, since the film is re-welded to the portion other than the originally welded surface, it increases weld safety, and improves user satisfaction. In the 'supply opening re-soldering process' (see Fig. 1), the supply opening film is re-soldered in order to seal the ink supply opening 4 again by the heater. Here, as the 'injection hole film re-soldering process', the film can be re-welded to a portion different from the originally welded surface or the inclined surface of the ink supply opening 4. After that (see Fig. 1), in the 'weight inspection process', the weight of the cartridge 1 is examined, and it is examined whether the filled cartridge 1 has the same weight as that of the new cartridge. Specifically, since the weight of the new cartridge is approximately 20.5 g, if the measured weight of the filled cartridge 1 is on a scale of 20.5 ± 1 g, the following process begins. After that, in the IC data writing process, the IC examiner, a writing information unit, such as the recycling information, of the IC 49 chip writes the recycling information on the IC chip 49 of the cartridge 1 The recycling information includes the recycling number (recycling number) of the cartridge 1 or the like, and in the data writing process lC, the recycling number is increased by 'one'. Meanwhile, in the 'sorting process', when the IC examiner reads the information stored in the IC 49 chip, if the recycling number exceeds a predetermined number, the cartridge 1 provided in the IC 49 chip can be removed as NG, or the number can be reported by a certain reporting unit. With the above operation, the recycling number can be achieved. In addition, since the parts deteriorate, it is possible to prevent the cartridge from being repeatedly recycled and the damaged cartridges are sold. Further, when the cartridge 1 is used in the recording device, the remaining amount of ink is stored in the IC chip, and the remaining amount of ink is read from the IC 49 chip in the 'ink extraction process', and then the amount of ink that corresponds to the amount read from the remaining ink can be removed from the cartridge used 1. With the above operation, the amount of the remaining ink suitable for filling can be removed, and the ink in the used cartridge 1 can be replaced with the filling ink more effectively. Still further, the measured amount of the remaining ink after the ink extraction is stored in the IC chip in the 'ink extraction process', and then the remaining amount of ink stored in the IC 49 chip, can be read and it is determined whether the ink is to be injected or the amount of ink corresponding to the amount of the remaining ink can be re-injected in the 'ink-jet process'. With the operation above, for example, it is possible to inject ink safely only into the cartridge containing 1 g or less of the remaining ink. In addition, the amount of ink suitable for filling can be injected.

Then, after the 'data writing process 1C \ the IC examiner reads the information from the IC chip 49 of the cartridge 1 in order to examine whether the information is written securely in the data writing process lC. Then, in the 'batch printing process', the batch number is printed on the cartridge 1. Meanwhile, printing can be formed by thermal or stamping printing. Then, in the 'label adhesion process', a new label identifying the recycle and a label to cover the vicinity of the air discharge opening 21 adhere to the cartridge 1. Then, in the 'external pressure inspection process', the ink leakage from the cartridge 1 is examined. In this process, the cartridge 1 is put in a box, the pressure at which it is reduced to a predetermined negative pressure, and then it is examined whether the ink leaks from the cartridge at the reduced pressure. In addition, if the container body 2 or the like breaks or the ink leaks from the cartridge, the cartridge is evaluated NG and removed. Then, in the 'packaging process', the cartridge 1 is reduced in pressure and packed so as not to let the ink in the cartridge 1 come into contact with the air. As described above, since the cartridge 1 is reduced in pressure and packed, and the ink becomes clogged with air, the level of the ink in the cartridge can be maintained sufficiently. Then, in the '12h leak check process', the cartridge reduced in pressure and packed 1 is left for 12 hours, and then it is examined whether the ink leaks from the cartridge 1 or the air enters the cartridge reduced in pressure and packed 1. Then, in the 'individual closure process', filled cartridges of high quality 1 are enclosed, of which the ink does not leak. Thus far, an example of the method for filling liquid in a cartridge according to the modality has been described. As described above, in the method for filling the liquid, the cartridge 1 can be reused when injecting ink into the used cartridge 1, and the decrease in environmental load accompanied by the reduction of waste and the low cost can be achieved. to the reuse of parts, and so users can be provided with cartridge at a low price. In addition, since no external pressure is required to the cartridge 1, the cartridge is rarely damaged, and the cartridge can be recycled several times. As described above, since the cartridge used can be effectively recycled with a simple process, a user can be provided with a high quality used cartridge at a low recycling cost. In the present embodiment, the direct hole is formed through the film F to open the air discharge opening 21 to allow ink injection, and after the ink injection, the injection hole film differently. is attached to the surface, different from the originally welded surface, as the welded surface to cover the direct hole formed in the injection hole film F, in order to seal the air discharge opening 21 again. However, any other means may be employed as long as the air discharge opening 21 can be sealed and sealed. Accordingly, the present invention should not be restricted to the use of the film or soldering for fixing. For example, an example of modification is illustrated in Figs. 1 9 and 20, which seals the air discharge opening 21. Fig. 19 (a) is a schematic perspective view showing a state in which the air discharge opening 21 is opened by removing a part of the film F. Fig. 19 (b) is a perspective view schematic showing a state in which the air discharge opening 21 is sealed after the ink injection. Fig. 20 is a cross-sectional view showing a state in which the air discharge opening 21 is sealed. As shown in Fig. 19 (b), in the present modification, after ink injection, a sealing plug 120 made of elastic material such as resin is used to seal the air discharge opening 21. That is, in the present modification, the sealing plug 120 is used as the sealing member. As shown in Figs. 19 (b) and 20, the sealing plug 120 includes a flange portion 120a having a circular shape as viewed from above, and a sealing portion 120b projecting from a surface 120d of the flange portion 120a at the center of the same. The sealing portion 120b is formed integral with the flange portion 120a, and has an outer circumferential surface 120c that matches in shape with a narrow shape of the inclined surface 1 1 1. When the air discharge opening 21 is sealed, the sealing portion 120b of the sealing plug 120 is inserted into the air discharge opening 21 so that the outer circumferential surface 120b is brought into close contact with the inclined surface 1 1 1 of the air discharge opening 21 due to the elasticity of the sealing portion 120b. The sealing plug 120 is adjusted in this state. Concurrently, the first surface 120d of the flange portion 120a is pressed against and tightly contacted with the film F to establish the seal between the film F and the flange portion 120a. The air discharge opening 21 is sealed in this manner. - ^ In this modality also, the sealing is performed on the inclined surface 1 1 1 placed in a hollow of the circumstances. This inclined surface, before the ink injection, is covered and protected by the injection hole film F and therefore is rarely damaged. The sealing portion 120b of the sealing plug 120 can be brought into close contact with a surface without any damage to achieve a secure seal after the ink injection. In the present modification, the sealing plug 120 having a predetermined shape is used as the sealing member. However, the present invention should not be restricted thereto. For example, a resin (glue type) (such as an elastic member having no fixed shape) that does not have a predetermined shape and that is easily deformable can be used as the sealing member to seal the air discharge opening 21. This resin can, for example, having a sticky property that matches the material of the container body of the ink cartridge 1. In this case too, in order to seal the air discharge opening 21, the resin is pressed against the inclined surface 1 1 1, which is a protected and clean surface, and consequently safe sealing can be performed. In the present embodiment, the air discharge opening 21 is used to fill ink in the ink cartridge. The present invention can be included so that the ink ejection opening 20, instead of the air discharge opening 21, is used to fill ink in the ink cartridge, or both the air discharge opening 21 and the Inkjet opening 20 are used to fill ink in the ink cartridge. In addition, the fill ink may be ink of the same color, or it may be ink of the same color group or similar color ink. Here, the ink of the same group means ink having dye or colored material of the same group, which has substantially the same chromatic characteristic as that of the ink originally filled and consumed (e.g., red ink and light red ink, etc.). ), and similar colored ink means ink having dye or colored material which has a similar chromatic characteristic as that of the ink originally filled and consumed (e.g., red ink and orange ink, etc.). In addition, in some cases, the filling liquid may be ink which is completely different in color from the ink originally filled and consumed. Although the embodiment deals with a case in which liquid is filled into a used cartridge, the present invention may also be applicable to a case in which liquid is filled in a new cartridge. Although the mode is a device for recording ink jet, the liquid jetting apparatus can jet not only ink but also glue, manicure, conductive liquid (liquid metal) or the like. Furthermore, although the embodiment deals with the ink dispenser registration head which uses ink which is a liquid, the invention can be applied to a registration head used for an image registration device, such as a printer.; a pigment-dispensing head used in the manufacture of a color filter, such as liquid crystal display or the like; a dispensing head of electrode forming material used in the electrode formation such as display of the organic EL, EDF (light emitting display) or the like; a liquid jetting apparatus that expels liquid such as a bioorganic dispensing head used in the manufacture of a biochip or the like.

Claims (46)

1. CLAIMS 1. A method for filling liquid in a cartridge used for mounting to a liquid dispensing apparatus, comprising: a film removal process for removing a first film, welded to a surface originally welded around an opening communicating with an interior of the cartridge used to seal the opening, in order to communicate the opening with an exterior of the used cartridge; a liquid injection process for injecting liquid into the cartridge used through the communicated opening in the film removal process; and a re-welding process to re-weld a second film using a surface different from the originally welded surface as a re-welded surface in order to seal the opening again, through which the liquid has been injected into the process of liquid injection. The method for filling liquid in a cartridge according to claim 1, characterized in that the re-welded surface is formed in a recessed portion around the opening, and is deeper than the originally welded surface. 3. The method for filling liquid in a cartridge according to claim 1, characterized in that an inclined surface which slopes downwards toward the inside of the cartridge of an edge of the opening is formed in the opening of the cartridge, and in the Re-soldering process, the second film is re-welded using the inclined surface as the re-welded surface. The method for filling liquid in a cartridge according to claim 1, characterized in that the cartridge has a pressure control valve which controls a supply pressure of the liquid in a liquid supply opening that supplies the liquid to the liquid dispensing apparatus. liquid and the cartridge stores the liquid in it by a pressure control of the pressure control valve. The method for filling liquid in a cartridge according to claim 1, characterized in that the cartridge has a liquid supply opening that supplies the liquid to the liquid dispensing apparatus and the liquid remaining in the used cartridge is extracted from the opening of liquid supply before the liquid injection process. The method for filling liquid in a cartridge according to claim 5, characterized in that liquid is injected into the cartridge, from which the remaining liquid has been extracted in a liquid extraction process, through the opening, different from the liquid supply opening, in the process of liquid injection. The method for filling liquid in a cartridge according to claim 4, characterized in that the opening communicates with an ink reservoir chamber upstream of the pressure control valve. The method for filling liquid in a cartridge according to any of claims 1 to 7, characterized in that the first film in the opening is removed by forming a direct hole in the first film in the opening when the first film in the opening is It removes in the film removal process, and the liquid is injected into the cartridge through the opening in the liquid injection process. 9. A liquid filling device that fills liquid in a used cartridge mountable to a liquid dispensing apparatus, comprising: a film removal unit that removes a first film, welded to a surface originally welded around a communicating opening with an interior of the cartridge used to seal the opening, in order to communicate the opening with an exterior of the used cartridge; a liquid injection unit that injects liquid into the cartridge used through the opening communicated by the film removal unit; and a re-welding unit that re-welds a second film using a surface different from the originally welded surface as a re-welded surface in order to seal the opening again, through which the liquid has been injected by the liquid injection unit. 1 0. A filler cartridge made to fill liquid in a used cartridge mountable to a liquid jetting apparatus, characterized in that a first film welded to a surface originally welded around an opening communicating with an interior of the cartridge used to seal the The opening is removed in order to communicate the opening with an exterior of the cartridge used and a second film is re-welded using a different surface to the originally welded surface as a re-welded surface in order to seal the opening again after it is injected liquid. eleven . A method for filling liquid in a cartridge mountable to a liquid spout apparatus, comprising; a liquid injection process to inject liquid into the cartridge; and a suction process for sucking a predetermined amount of liquid from the interior of the cartridge through a liquid supply opening, through which the cartridge delivers the liquid to the liquid jetting apparatus, after the liquid is injected into the liquid jet. the process of liquid injection. The method for filling the liquid in a cartridge according to claim 1, characterized in that the cartridge has a pressure control valve which controls a supply pressure of the liquid in the liquid supply opening. The method for filling the liquid in a cartridge according to claim 12, characterized in that the predetermined amount of liquid sucked in the suction process corresponds to at least one volume of a flow passage from the pressure control valve to the opening of liquid supply between liquid supply passages in the cartridge. The method for filling liquid in a cartridge according to claim 1, characterized in that the liquid is sipped and stored in a liquid-containing portion having the volume corresponding to the amount of liquid sorbed from the liquid supply opening in the suction process. The method for filling liquid in a cartridge according to claim 14, characterized in that the suction process is carried out by opening an opening and closing valve provided upstream of the liquid containing portion of a state in which a predetermined negative pressure is accumulated in the liquid containing portion. 16. The method for filling liquid in a cartridge according to claim 12, characterized in that the cartridge is a cartridge used from which liquid has been consumed, wherein the liquid remaining in the cartridge used is extracted from the liquid supply opening before the liquid injection process. The method for filling the liquid in a cartridge according to claim 16, characterized in that the liquid is injected into the cartridge, from which the remaining liquid has been extracted in the liquid extraction process, through a second different opening to the liquid supply opening. 18. The method for filling liquid in a cartridge according to claim 17, characterized in that the second opening communicates with an ink reservoir chamber upstream of the pressure control valve. The method for filling the liquid in a cartridge according to claim 16, characterized in that the liquid is injected into the cartridge in a state in which a cartridge pressure, from which the liquid has been removed in the liquid extraction process , it is reduced in advance to be on a scale from 600 to 3800 Pa. 20. A cartridge containing therein the liquid filled by the liquid filling method according to any of claims 10 to 19. 21. A liquid filling device that fills liquid in a mountable cartridge to a liquid spout apparatus, comprising; a liquid injection unit that injects liquid into the cartridge; and a suction unit which draws a predetermined amount of liquid from an interior of the cartridge through a liquid supply opening, through which the cartridge delivers the liquid to the liquid jetting apparatus, after which the liquid is injected. by the liquid injection unit. 22. A method for filling liquid in a cartridge used mountable to a liquid dispensing apparatus, comprising: a process for extracting liquid to extract liquid remaining in the cartridge used; a process of checking the remaining quantity to examine whether a quantity of the liquid remaining in the cartridge after the remaining liquid is extracted in the extraction process occupies a predetermined proportion or less with respect to a total amount of liquid to be filled in a new cartridge; and a liquid injection process for injecting liquid into the used cartridge examined to contain the amount of the remaining liquid equal to or less than the predetermined ratio in the remaining amount checking process. 23. The method for filling liquid in a cartridge according to claim 22, characterized in that the predetermined proportion in the process of checking the remaining amount is 6% volume. 24. The method for filling liquid in a cartridge according to claim 22, characterized in that when the liquid remaining in the cartridge is removed in the liquid extraction process, a predetermined quantity of liquid corresponding to a surface area of the cartridge is made to remain in the cartridge, and the liquid is injected into the cartridge, in which the predetermined amount of liquid has remained, in the process of liquid injection. 25. The method for filling liquid in a cartridge according to claim 22, characterized in that the cartridge has a pressure control valve that controls a supply pressure of the liquid in a liquid supply opening. 26. The method for filling liquid in a cartridge according to claim 22, characterized in that the liquid remaining in the cartridge used is extracted from a liquid supply opening in the liquid extraction process that supplies the liquid to the liquid dispensing apparatus. liquid. 27. The method for filling liquid in a cartridge according to claim 26, characterized in that liquid is injected into the cartridge, from which the remaining liquid has been extracted in the process of extracting liquid, through a second opening, different from the liquid supply opening. 28. The method for filling liquid in a cartridge according to claim 27, characterized in that the second opening communicates with a liquid reservoir chamber upstream of a pressure control valve. 29. A liquid filling device for filling liquid in a used cartridge mountable to a liquid dispensing apparatus, comprising: a liquid extraction unit that extracts liquid remaining in the cartridge; a measuring device that measures whether a quantity of the liquid remaining in the cartridge after the liquid is withdrawn by the liquid extraction unit occupies a predetermined proportion or less than a total amount of liquid to be filled in a new cartridge; and a liquid injection unit that injects liquid into the examined cartridge to contain the amount of liquid, measured by the unit of measurement, equal to or less than the predetermined ratio. 30. A method for filling ink for an ink cartridge having: a container body; an ink chamber formed in the container body; an ink supply opening, formed in the container body and adapted to receive an ink supply needle of a printer, for communication between the ink chamber and a print head; an ink jet opening formed in the container body and communicating with the ink chamber; and a film member attached to the container body for sealing the ink ejection opening, the method comprising the step of: forming a direct hole through the film member to open the ink ejection opening; injecting ink into the ink chamber through the direct hole and the ink jet opening; and sealing the ink jet opening by attaching a sealing member to the container body in the film member so that a portion of the sealing member passes through the direct hole and is brought into close contact with an inner surface of the container. Injection opening, the inner surface is located between the film member and the ink chamber. 31 The method for filling ink according to claim 30, characterized in that the ink cartridge has a differential pressure valve mechanism which is disposed in a part of a fluid passage connecting the ink chamber to the supply opening of the ink. ink, which obstructs the passage of fluid normally and which opens the passage of fluid when a difference of pressure of ink between the ink supply opening and the ink chamber becomes larger than a valve preset by consumption of ink by the print head, wherein the step for injecting the ink includes a step for injecting the ink into the ink chamber through the direct hole and the ink jet opening, while applying a negative pressure to the ink supply opening. ink so that the differential pressure valve mechanism opens the fluid passage. 32. The method for filling ink according to claim 31, characterized in that the part of the sealing member is thermally attached to the inner surface of the ink ejection opening. 33. An ink cartridge comprising: a container body; an ink chamber formed in the container body; an ink supply opening, formed in the container body and adapted to receive an ink supply needle of a printer, for communication between the ink chamber and a print head; an ink jet opening formed in the container body and communicating with the ink chamber; a film member attached to the container body, and having a direct hole facing the ink ejection opening; and a sealing member attached to the container body in the film member so that a portion of the sealing member passes through the direct hole and is brought into close contact with an inner surface of the ink jet opening, the surface The interior is located between the film member and the ink chamber. 34. The ink cartridge according to claim 33, further comprising: a differential pressure valve mechanism which is disposed at a portion of a fluid passage connecting the ink chamber to the ink supply opening, the which obstructs the passage of fluid normally and which opens the passage of fluid wherein a difference of pressure of ink between the ink supply opening and the ink chamber becomes larger than a valve preset by the consumption of the liquid. ink by the print head. 35. The ink cartridge according to claim 33, characterized in that the part of the sealing member is attached to the inner surface of the ink ejection opening. 36. A method for filling liquid in a cartridge mountable to a liquid jetting apparatus, comprising: a film removal process for removing a The first film, welded to a surface originally welded around an opening communicating with an interior of the cartridge to seal the opening, in order to communicate the opening with an exterior of the used cartridge; a liquid injection process for injecting liquid into the cartridge through the communicated opening in the film removal process; and a sealing process to seal the opening again by closely contacting a sealing member with a surface different from the originally welded surface. 37. The method for filling liquid in a cartridge according to claim 36, characterized in that the sealing surface is formed in a recessed portion around the opening, and is deeper than the originally welded surface. 38. The method for filling liquid in a cartridge according to claim 36, characterized in that the sealing member is a sealing plug or an elastic member that does not have a fixed shape. 39. The method for filling liquid in a cartridge according to claim 36, characterized in that an inclined surface which slopes downwards towards the inside of the cartridge of an edge of the opening is formed in the opening of the cartridge, and in the sealing process, a second film as the sealing member is soldered to the inclined surface. 40. The method for filling liquid in a cartridge according to claim 36, characterized in that the cartridge has a pressure control valve which controls a supply pressure of the liquid in a liquid supply opening that supplies the liquid to the liquid dispensing apparatus. liquid and the cartridge stores the liquid in it by a pressure control of the pressure control valve. 41 The method for filling the liquid in a cartridge according to claim 36, characterized in that the cartridge has a liquid supply opening that supplies the liquid to the liquid jetting apparatus and the liquid remaining in the cartridge is removed from the liquid supply opening. liquid before the liquid injection process. 42. The method for filling liquid in a cartridge according to claim 41, characterized in that liquid is injected into the cartridge, from which the remaining liquid has been extracted in a liquid extraction process, through the opening, different from the liquid supply opening, in the process of liquid injection. 43. The method for filling liquid in a cartridge according to claim 40, characterized in that the opening communicates with an ink reservoir chamber upstream of the pressure control valve. 44. The method for filling liquid in a cartridge according to any of claims 36 to 43, characterized in that the first film in the opening is removed by forming a direct hole in the first film in the opening when the first film in the opening is It removes in the film removal process, and the liquid is injected into the cartridge through the opening in the liquid injection process. 45. A liquid filling device that fills liquid in a cartridge mountable to a liquid jetting apparatus, comprising: a film removal unit that removes a first film, welded to a surface originally welded around an opening communicating with an interior of the cartridge for sealing the opening, in order to communicate the opening with an exterior of the used cartridge; a liquid injection unit that injects liquid into the cartridge through the opening communicated by the film removal unit; and a sealing unit sealing the opening again when a sealing member closely contacts a different surface than the originally welded surface. 46. A filler cartridge manufactured by filling liquid in a cartridge mountable to a liquid dispensing apparatus, characterized in that a first film welded to a surface originally welded around an opening communicating with an interior of the cartridge to seal the opening is removed. in order to communicate the opening with an exterior of the cartridge and a sealing member by closely contacting a different surface with the originally welded surface in order to seal the opening again after liquid is injected.