Patent Publication Number: US-2020276825-A1

Title: Liquid container

Description:
The present application is based on, and claims priority from JP Application Serial Number 2019-036553, filed Feb. 28, 2019, the disclosure of which is hereby incorporated by reference herein in its entirety. 
     BACKGROUND 
     1. Technical Field 
     The present disclosure relates to a liquid container. 
     2. Related Art 
     There are liquid containers in which a liquid storing chamber that stores a liquid is formed by welding a plurality of members to each other. For example, in a liquid container disclosed in JP-A-2015-66750, resin members, which include opening portions through which a liquid flows out, are joined to two ends of a cylindrical resin sleeve portion by laser welding to form a liquid storing chamber therein. 
     As in the technique in JP-A-2015-66750, when a plurality of members are welded to each other by laser welding, one of the two members that are welded to each other needs to be configured of a material that transmits a laser beam and the other needs to be configured of a material that absorbs the laser beam. Accordingly, the degree of freedom in selecting the materials constituting the liquid container is limited, and a joining technique other than laser welding is not considered in JP-A-2015-66750. 
     It is desirable that a liquid container, in which a liquid storing chamber is formed by joining a plurality of members to each other, has a structure that allows a plurality of members to be easily joined to each other by, not limited to laser welding, various joining techniques. 
     SUMMARY 
     A configuration in which the technique of the present disclosure has been implemented is provided as a liquid container. A liquid container of such a configuration includes a liquid storing chamber in which a liquid is stored, a first member that includes a cylindrical first side wall that surrounds at least a portion of the liquid storing chamber, a first opening surrounded by a first end portion of the first side wall, and a second opening surrounded by a second end portion of the first side wall, a liquid outlet member that includes an outlet through which the liquid flows out, the liquid outlet member being attached to the first opening, and a second member joined to the first member, the second member sealing the liquid storing chamber from a second opening side. When viewed in a central axis direction of the first member, a joint between the first member and the second member is formed outside an area surrounded by a boundary between the first member and the second member in the liquid storing chamber. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic perspective view illustrating a configuration of a liquid consuming device. 
         FIG. 2  is a schematic perspective view illustrating an ink supplying unit. 
         FIG. 3  is a schematic plan view illustrating the ink supplying unit. 
         FIG. 4  is a partial and schematic cross-sectional view illustrating a lateral side of the ink tank. 
         FIG. 5  is a partial and schematic cross-sectional view illustrating a front side of the ink tank. 
         FIG. 6  is a schematic perspective view of a liquid container of a first exemplary embodiment. 
         FIG. 7  is a schematic side view of the liquid container of the first exemplary embodiment. 
         FIG. 8  is a schematic perspective view illustrating the liquid container in which a cap has been detached therefrom. 
         FIG. 9  is a schematic cross-sectional view of the liquid container of the first exemplary embodiment. 
         FIG. 10  is a schematic and exploded perspective view illustrating a state in which a valve member has been taken out from a liquid outlet member. 
         FIG. 11  is a first partially cross-sectioned side view illustrating a process of refilling ink into an ink tank. 
         FIG. 12  is a second partially cross-sectioned side view illustrating the process of refilling the ink into the ink tank. 
         FIG. 13  is a schematic cross-sectional view in which a peripheral portion of a joint between a first member and a second member has been extracted. 
         FIG. 14  is a schematic perspective view of a liquid container of a second exemplary embodiment. 
         FIG. 15  is a schematic side view of the liquid container of the second exemplary embodiment. 
         FIG. 16  is a schematic cross-sectional view of the liquid container of the second exemplary embodiment. 
         FIG. 17  is a schematic perspective view of a liquid container of a third exemplary embodiment. 
         FIG. 18  is a schematic side view of the liquid container of the third exemplary embodiment. 
         FIG. 19A  is a schematic cross-sectional view of the liquid container of the third exemplary embodiment. 
         FIG. 19B  is a schematic cross-sectional view in which a peripheral portion of a joint between a first member and a second member has been extracted. 
         FIG. 20  is a schematic perspective view of a liquid container of a fourth exemplary embodiment. 
         FIG. 21  is a schematic side view of the liquid container of the fourth exemplary embodiment. 
         FIG. 22A  is a schematic cross-sectional view of the liquid container of the fourth exemplary embodiment. 
         FIG. 22B  is a schematic cross-sectional view in which a peripheral portion of a joint between a first member and a second member has been extracted. 
         FIG. 23  is a schematic cross-sectional view of the liquid container of the fifth exemplary embodiment. 
         FIG. 24  is a schematic perspective view of a liquid container of a sixth exemplary embodiment. 
         FIG. 25  is a schematic side view of the liquid container of the sixth exemplary embodiment. 
         FIG. 26  is a schematic cross-sectional view of the liquid container of the sixth exemplary embodiment. 
         FIG. 27  is a schematic cross-sectional view of a liquid container of a seventh exemplary embodiment. 
         FIG. 28  is a schematic perspective view of a liquid container of an eighth exemplary embodiment. 
         FIG. 29  is a schematic side view of the liquid container of the eighth exemplary embodiment. 
         FIG. 30  is a schematic cross-sectional view of the liquid container of the eighth exemplary embodiment. 
         FIG. 31  is a schematic perspective view of a liquid container of a ninth exemplary embodiment. 
         FIG. 32  is a schematic side view of the liquid container of the ninth exemplary embodiment. 
         FIG. 33  is a schematic cross-sectional view of the liquid container of the ninth exemplary embodiment. 
         FIG. 34  is a schematic perspective view of a liquid container of a tenth exemplary embodiment. 
         FIG. 35  is a schematic side view of the liquid container of the tenth exemplary embodiment. 
         FIG. 36  is a schematic cross-sectional view of the liquid container of the tenth exemplary embodiment. 
         FIG. 37  is a schematic perspective view of a liquid container of an eleventh exemplary embodiment. 
         FIG. 38  is a schematic side view of the liquid container of the eleventh exemplary embodiment. 
         FIG. 39  is a schematic cross-sectional view of the liquid container of the eleventh exemplary embodiment. 
     
    
    
     DESCRIPTION OF EXEMPLARY EMBODIMENTS 
     1. First Exemplary Embodiment 
     1-1. Liquid Consuming System 
       FIG. 1  is a schematic view illustrating an example of a liquid consuming system  10  including a liquid container  100  according to a first exemplary embodiment. In addition to the liquid container  100 , the liquid consuming system  10  includes a liquid consuming device  21  that consumes a liquid. In the liquid consuming system  10 , the user refills the liquid in the liquid container  100  into the liquid consuming device  21 . Hereinafter, referring first to  FIGS. 1 to 5 , a configuration of the liquid consuming device  21  will be described, and referring to  FIGS. 6 to 13 , the liquid container  100  of the first exemplary embodiment will be described. 
     1-2. Liquid Consuming Device 
       FIG. 1  is a schematic perspective view schematically illustrating a configuration of the liquid consuming device  21 .  FIG. 1  illustrates the liquid consuming device  21  in a simplified manner while the components inside a housing  22  is seen through the housing  22 . Furthermore, in  FIG. 1 , an X direction, a Y direction, and a Z direction that are orthogonal to each other are depicted so as to correspond to the liquid consuming device  21  disposed on a horizontal surface. The X direction and the Y direction are directions parallel to the horizontal direction, and the Z direction is a direction parallel to the vertical direction. The X direction matches the left-right direction of the liquid consuming device  21 . In the X direction, a +X direction is the right direction when facing the front side of the liquid consuming device  21 , and a −X direction is the left direction. The Y direction matches the front-rear direction of the liquid consuming device  21 . In the Y direction, a +Y direction is the frontward direction, and a −Y direction is the rearward direction. The Z direction matches the up-down direction of the liquid consuming device  21 . In the Z direction, a +Z direction is the upward direction and a −Z direction is the downward direction. The X direction, the Y direction, and the Z direction depicted in the drawings referred to later correspond to those in  FIG. 1 . 
     The liquid consuming device  21  is an ink jet printer that records an image and the like on a medium by ejecting ink, which is an example of the liquid, on the medium. The liquid consuming device  21  includes the housing  22  that has a rectangular parallelepiped shape in which the left-right direction is the longitudinal direction. A support base  23 , the longitudinal direction thereof being the left-right direction, is provided in a lower rear portion inside the housing  22  so that an upper surface thereof extends in the left-right direction. A sheet of paper P, which is an example of the medium, is transported towards the front side, which is a transport direction, while the sheet of paper P is supported by the upper surface of the support base  23 . A guide shaft  24  that extends in the left-right direction is provided at a position inside the housing  22  above the support base  23 . A carriage  26  that includes, on an under surface side thereof, a recording head  25  that ejects ink is supported by the guide shaft  24 . The guide shaft  24  is inserted through a support hole  27  that penetrates through the carriage  26  in the left-right direction. The carriage  26  is configured to reciprocate in the left-right direction relative to the guide shaft  24 . 
     A driving pulley  28  and a driven pulley  29  are supported in a rotatable manner at positions inside the housing  22  near two ends of the guide shaft  24 . An output shaft of a carriage motor  30  is coupled to the driving pulley  28 . An endless timing belt  31 , a portion of which is coupled to the carriage  26 , is wound around the driving pulley  28  and the driven pulley  29 . When the carriage  26  is reciprocated in the left-right direction, which is a direction in which scanning is performed on the sheet of paper P, through the timing belt  31  with the drive of the carriage motor  30  while being guided by the guide shaft  24 , the ink is ejected onto the sheet of paper P, which is transported in the forward direction on the support base  23 , from the recording head  25  on the under surface side of the carriage  26 . 
     A rectangular discharge port  32  that discharges the sheet of paper P, on which recording has been performed by ejection of ink, towards the front side is open on a front surface side of the housing  22  at a position in front of the support base  23 . A rectangular plate-shaped discharge tray  33  configured to support the sheet of paper P discharged from the housing  22  is provided in the discharge port  32 . The discharge tray  33  can be pulled out towards the front side. A sheet feeding cassette  34  configured to store a plurality of sheets of paper P stacked on each other is mounted inside the discharge port  32  and below the discharge tray  33 . The sheet feeding cassette  34  is detectable in the front-rear direction. 
     An opening/closing door  35  is provided in the front surface of the housing  22  and on an end portion side of the housing  22  in the left-right direction with respect to the discharge port  32 . In  FIG. 1 , the opening/closing door  35  is provided on the right end portion side in the front surface of the housing  22 . A front surface and an upper surface of the opening/closing door  35  have a rectangular shape and a right surface has a right-angle triangle shape. The opening/closing door  35  is opened/closed by being pivoted in the front-rear direction about a rotation shaft  36  that is provided at a lower end of the opening/closing door  35  and that extends in the left-right direction. A window portion  37  formed of a rectangular transparent member is formed in the front surface of the opening/closing door  35 . The user can view the inside of the housing  22  when the opening/closing door  35  is in a closed state. 
     An ink supplying unit  40  that supplies the ink to the recording head  25  is housed inside the housing  22  of the liquid consuming device  21  and behind the opening/closing door  35 . The ink supplying unit  40  includes a plurality of ink tanks  41  to  45 . In the present exemplary embodiment, the ink supplying unit  40  includes five ink tanks  41  to  45 . The ink supplying unit  40  is a structure allowing the ink tanks  41  to  45  to be managed integrally. The user refills the ink from the liquid container  100  to each of the ink tanks  41  to  45 . 
       FIG. 2  is a schematic perspective view illustrating the ink supplying unit  40 .  FIG. 3  is a schematic plan view illustrating the ink supplying unit  40 . The ink supplying unit  40  includes five ink tanks  41  to  45 , five ink supply tubes  46  that extend out from rear surface sides of the ink tanks  41  to  45 , and an ink refill adapter  47  that is mounted on the ink tanks  41  to  45  and that acts to couple the liquid container  100  to the ink tanks  41  to  45 . Each of the ink tanks  41  to  45  is configured as a rectangular box in which the dimension in the left-right direction is the smallest. Each of the ink tanks  41  to  45  is coupled to the recording head  25  held in the carriage  26  illustrated in  FIG. 1  through the corresponding ink supply tube  46 . 
     Level different portions  48  to where the adapter  47  are attached are formed in the ink tanks  41  to  45 . The level different portions  48  are rectangular cutaways in the upper front portions of the ink tanks  41  to  45 . In the ink supplying unit  40 , the ink tanks  41  to  45  are integrated and coupled to each other by having the adapter  47  having a rectangular parallelepiped shape be attached thereto while the ink tanks  41  to  45  are arranged in the left-right direction. As described later, when refilling the ink, the liquid container  100  is engaged and coupled to the adapter  47 . 
     Note that the adapter  47  may be a member constituting a portion of the housing  22  that covers the ink tanks  41  to  45  or may be integrally formed with the ink tanks  41  to  45 . Furthermore, the adapter  47  do not have to include a function of being coupled to the ink tanks  41  to  45  and may be divided so that each adapter is mounted on the corresponding one of the ink tanks  41  to  45 . 
       FIGS. 4 and 5  are schematic and partial cross-sectional views that partially include cross sections of the ink tanks  41  to  45  taken along line IV-IV and V-V in  FIG. 3 .  FIG. 4  illustrates a lateral side of the ink tanks  41  to  45 , and  FIG. 5  illustrates a front side of the ink tanks  41  to  45 . 
     Each ink tanks  41  to  45  includes an ink storage chamber  49  configured to store ink IK therein. Ink of different colors are stored in the ink tanks  41  to  45 . For example, black ink is stored in the ink tank  41  at the right end, and the ink tanks  42  to  45  arranged on the left side of the ink tank  41  store colored ink other than black such as, for example, cyan, magenta, and yellow ink. 
     Viewing portions  50  that enable the user to view liquid levels of the ink IK inside the ink storage chambers  49  through the window portion  37  in the front surface of the housing  22  are provided in front wall portions of the ink tanks  41  to  45 . The viewing portions  50  are configured of a transparent resin, for example. An upper limit mark  51  that indicates a reference for the upper limit of the liquid level of the ink IK stored in the ink storage chamber  49  and a lower limit mark  52  that indicates a reference for the lower limit are marked in each viewing portion  50 . The reference indicated by the upper limit mark  51  is, for example, a reference indicting the amount of ink that can be filled through an ink receiving portion  53  without spilling the ink. The reference indicated by the lower limit mark  52  is, for example, a reference that encourages the user to refill the ink. 
     As illustrated in  FIG. 4 , the ink receiving portion  53  that allows the ink to flow into the ink storage chamber  49  from the outside is provided on the upper side of the horizontal portion of the level different portion  48  in each of the ink tanks  41  to  45 . Each ink receiving portion  53  includes a needle-like ink port  56  that extends vertically upwards. Two parallel flow paths  54  and  55  that communicate the inside and the outside of the ink storage chamber  49  are provided inside each ink port  56 . As illustrated in  FIG. 3 , the first flow paths  54  are provided behind the second flow paths  55 . Sections of the openings of the first and second flow paths  54  and  55  have shapes in which a single circle is compartmented into two fan shapes with wall portions that extend radially from the center of the circle. The first flow path  54  is provided behind the second flow path  55  and a flow-path sectional area of the first flow path  54  is larger than that of the second flow path  55 . Furthermore, as illustrated in  FIG. 4 , the first flow path  54  is formed so that a height of an opening at the distal end thereof is lower than a height of an opening at the distal end of the second flow path  55 . A remaining amount sensor  57  that detects the amount of ink IK remaining inside the ink storage chamber  49  is provided at a rear lower portion inside each ink storage chamber  49 . The remaining amount sensor  57  may be omitted. 
     As illustrated in  FIG. 4 , a through hole that penetrates the adapter  47  in the up-down direction from an upper surface  58  to an under surface  59  is formed in the adapter  47 . As illustrated in  FIGS. 2 and 3 , the opening of the through hole has a shape in which a pair of substantially rectangular hole portions  61 , the openings thereof each having a substantially rectangular section, are coupled to the front and the rear of a circular hole portion  60 , the opening thereof having a substantially circular section. As illustrated in  FIGS. 2 to 5 , in the ink supplying unit  40 , the ink port  56  of the ink receiving portion  53  included in each of the ink tanks  41  to  45  is disposed in the middle of the corresponding circular hole portion  60 . As described later, when the ink is refilled into each of the ink tanks  41  to  45 , a portion of a liquid outlet member  110  of the corresponding liquid container  100  is fitted into the circular hole portion  60  and the rectangular hole portions  61 . Note that colors that are the same as the colored inks stored in the ink tanks  41  to  45  may be applied as references to the rims of the circular hole portions  60  and the rims of the rectangular hole portions  61  in the upper surface  58  of the adapter  47 . 
     In the first exemplary embodiment, discrimination protrusions  62  that protrude from the inner lateral surface of the rectangular hole portion  61  are provided inside each of the rectangular hole portions  61  of the ink tanks  41  to  45  at different positions. As described above, a fitting groove portion  116  configured to fit the discrimination protrusion  62  of one of the ink tanks  41  to  45  that stores the colored ink that matches the colored ink of the liquid container  100  is provided in the liquid outlet member  110  of the liquid container  100 . Since the discrimination protrusion  62  cannot be fitted to the fitting groove portion  116  of the liquid outlet member  110  of the liquid container  100  that stores the colored ink that does not match the colored ink thereof, the liquid outlet member  110  of the liquid container  100  is prevented from being fitted in the rectangular hole portions  61  of the adapter  47 . Note that as illustrated in  FIGS. 2 to 5 , the discrimination protrusions  62  in the pair of rectangular hole portions  61  provided above each of the ink tanks  42  and  45  are provided in a point symmetrical manner with the center of the circular hole portion  60  as the point of symmetry. The reason for the above will be described later. 
     1-3. Configuration of Liquid Container 
     Referring to  FIGS. 6 to 13 , a configuration of the liquid container  100  according to the first exemplary embodiment will be described.  FIG. 6  is a schematic perspective view illustrating a liquid container  100 , and  FIG. 7  is a schematic side view of the liquid container  100  and is a plan view of a lateral surface.  FIGS. 6 and 7  illustrate a state in which a cap  130  is attached to the liquid container  100 .  FIG. 8  is a schematic perspective view illustrating a state in which the cap  130  has been detached from the liquid container  100 .  FIG. 9  is a schematic cross-sectional view of the liquid container  100  cut along IX-IX and through a central axis CX illustrated in  FIG. 7 . In the drawings, the central axis CX of the liquid container  100  is depicted by a dot and dash line. Note that a direction parallel to the central axis CX is, hereinafter, referred to as a “central axis direction”. 
     The liquid container  100  includes a liquid storing chamber  101  that is an internal space that stores a liquid. In the first exemplary embodiment, the liquid stored in the liquid container  100  is the ink refilled into the ink tanks  41  to  45  of the liquid consuming device  21  described above. The liquid container  100  includes a hollow container body  102 , the liquid outlet member  110  attached to the container body  102 , and the cap  130  attached to the liquid outlet member  110  in a detachable manner. 
     Hereinafter, a side of the liquid container  100  in the central axis direction on which the liquid outlet member  110  is provided is referred to as a “front end side”, and a side opposite to the front end side is referred to as a “rear end side”. An end portion of the liquid container  100  on the rear end side is formed flat and is configured to be placeable on a horizontal surface when the liquid container  100  is positioned so that the front end side is oriented upwards and the rear end side is oriented downwards. 
     1-3-1. Container Body 
     As illustrated in  FIGS. 6 to 8 , the container body  102  is configured of a hollow member having a columnar external shape. The container body  102  is fabricated with a resin material such as, for example, polypropylene (PP) or polyethylene terephthalate (PET). The container body  102  is fabricated by mounting a first member  150  on a second member  160  and joining the first member  150  and the second member  160  in the central axis direction. Detailed configurations of the first member  150  and the second member  160  and a joining method of the first member  150  and the second member  160  will be described later. 
     1-3-2. Liquid Outlet Member 
     Referring to  FIG. 8 , the liquid outlet member  110  is a member that functions as a so-called spout and is attached to an end portion of the liquid container  100  on the front end side. The liquid outlet member  110  is a cylindrical member and is fabricated by injection molding a resin material such as, for example, polypropylene or polyethylene terephthalate. 
     The liquid outlet member  110  includes, on the front end side thereof, a tubular pipe portion  111  that is configured to be in communication with the liquid storing chamber  101 . In the first exemplary embodiment, the pipe portion  111  has a cylindrical shape extending along the central axis CX. The pipe portion  111  includes an outlet  112  in the end portion thereof on the front end side. The outlet  112  is an opening through which the liquid stored in the liquid storing chamber  101  flows out. In the first exemplary embodiment, the center of the outlet  112  is on the central axis CX of the liquid container  100 . Furthermore, the pipe portion  111  has a diameter that fits into the circular hole portion  60  of the adapter  47  illustrated in  FIG. 3 . 
     A groove portion  113  is formed in an end surface of the pipe portion  111  on the front end side and along an external circumference of the outlet  112 . By providing the groove portion  113 , the ink adhered to the periphery of the outlet  112  after refilling the ink into one of the ink tanks  41  to  45  can be made to flow into the groove portion  113  and be stored before the ink drips to the lateral surface of the pipe portion  111 . Accordingly, dripping of the ink adhered to the periphery of the outlet  112  to the lateral surface of the pipe portion  111  can be suppressed. 
     An annular protrusion  114  that protrudes in a radial direction of the pipe portion  111  and that is formed along an external circumference of the pipe portion  111  is provided on a lateral surface of the external circumference of the pipe portion  111 . The annular protrusion  114  can stop the liquid that has spilt from the outlet  112  to the lateral surface of the pipe portion  111  from moving along the lateral surface of the pipe portion  111  and dripping to the rear end side. Note that in the present specification, the “radial direction” of the tubular or cylindrical member indicates a direction orthogonal to the central axis of the tubular or cylindrical member. 
     The liquid outlet member  110  further includes a pair of fitting portions  115  on two sides of the pipe portion  111  in the radial direction. Each of the pair of fitting portions  115  is configured to fit into the corresponding rectangular hole portion  61  of the adapter  47  illustrated in  FIGS. 2 to 4 . In the first exemplary embodiment, the fitting portions  115  are formed as rectangular columnar members extending along the pipe portion  111 . The fitting groove portions  116  are provided along the pipe portion  111  and in lateral surfaces of the fitting portions  115 . The fitting groove portions  116  are configured so that the discrimination protrusions  62  provided in the rectangular hole portions  61  illustrated in  FIGS. 2 to 4  fit therein. Note that the pair of fitting portions  115  may be omitted. 
     The liquid outlet member  110  further includes a positioning portion  118  that extends out in the radial direction in the lateral surfaces of the pipe portion  111  and the fitting portions  115 . The positioning portion  118  includes an upper surface that faces the front end side and that extends in the radial direction. As described later, when the liquid container  100  is coupled to the adapter  47 , the upper surface of the positioning portion  118  abuts against the upper surface  58  of the adapter  47  at the peripheries of the circular hole portion  60  and the rectangular hole portions  61 . With the above, the position of the liquid container  100  is set when the ink is refilled into one of the ink tanks  41  to  45 . 
     Referring to  FIGS. 9 and 10 ,  FIG. 10  is a schematic and exploded perspective view illustrating a state in which the liquid outlet member  110  has been detached from the container body  102  and in which a valve member  120  has been taken out from the inside of the liquid outlet member  110 . The valve member  120  is a member that seals the outlet  112  of the liquid outlet member  110  in an openable/closable manner. The valve member  120  in the first exemplary embodiment is configured as a so-called slit valve. A body of the valve member  120  is configured of an elastic member such as a silicon film, and a slit  121  that is opened/closed by being deformed in the thickness direction is provided at the middle. As illustrated by an arrow in  FIG. 10 , the valve member  120  is inserted inside the liquid outlet member  110  from the rear end side and, as illustrated in  FIG. 9 , is attached to the front end of the pipe portion  111  so as to seal the outlet  112 . The valve member  120  is fixed on the front end side with respect to the positioning portion  118 . 
     Referring to  FIGS. 8 and 9 , the liquid outlet member  110  includes, on the rear end side with respect to the positioning portion  118 , a connection portion  125  that fixes the liquid outlet member  110  to the container body  102 . The connection portion  125  is configured as a cylindrical member having a diameter that is larger than that of the pipe portion  111 . A female screw portion  127  that is screwed together with a male screw portion  103  provided in an external circumference of the container body  102  is provided in an internal circumferential surface of the connection portion  125 . A male screw portion  129  that fixes the cap  130  to the liquid container  100  in a detachable manner is provided in an external circumferential surface of the connection portion  125 . 
     1-3-3. Cap 
     Referring to  FIGS. 6 to 9 , the cap  130  is configured of a cylindrical member in which an end portion on the front end side is closed and on which another side is open. The cap  130  is fabricated by injection molding a resin material such as, for example, polypropylene or polyethylene terephthalate. The cap  130  accommodating the liquid outlet member  110  is attached to a front end side of the liquid container  100 . A female screw portion  131  that is screwed together with the male screw portion  129  provided in the connection portion  125  of the liquid outlet member  110  described above is provided in an internal circumferential surface of the cap  130 . As illustrated in  FIG. 9 , a closing portion  133  that closes the outlet  112  in a watertight manner is provided on an inner wall surface of the cap  130  and at a position opposing the outlet  112  of the liquid outlet member  110 . “Watertight” may be rephrased as liquid tight. By attaching the cap  130 , the liquid outlet member  110  is protected and leakage of ink from the outlet  112  is prevented. 
     1-3-4. Refilling Ink into Ink Tank 
     Referring to  FIGS. 11 and 12 , a process of refilling the ink into one of the ink tanks  41  to  45  from the liquid container  100  will be described.  FIG. 11  is a partially cross-sectioned side view that schematically illustrates a state before the liquid container  100  is coupled to the adapter  47 .  FIG. 12  is a partially cross-sectioned side view that schematically illustrates a state after the liquid container  100  has been coupled to the adapter  47 . The refilling of the ink into one of the ink tanks  41  to  45  is performed, for example, when the user confirms that the liquid level of the ink IK is at the lower limit mark  52  or lower through the viewing portion  50 . 
     Referring to  FIG. 11 , the liquid container  100  is positioned so that the front end side is on the lower side and the rear end side is on the upper side and so that the central axis CX coincides with the Z-axis direction. Furthermore, the liquid container  100  is set so that the pair of fitting portions  115  of the liquid outlet member  110  are aligned in the front-rear direction of the ink tanks  41  to  45 . Note that before the liquid container  100  is coupled to the adapter  47 , since the valve member  120  is in a valve closed state in which the slit  121  of the valve member  120  is closed, even when the front end of the liquid container  100  is oriented in the gravitational direction, the ink is suppressed from flowing out from the outlet  112  by the valve member  120 . 
     Subsequently, the outlet  112  of the liquid container  100  is positioned above the ink port  56  of one of the ink tanks  41  to  45  and the liquid container  100  is moved downwards. With the above, as illustrated in  FIG. 12 , the pipe portion  111  of the liquid outlet member  110  fits into the circular hole portion  60  of the adapter  47  and the fitting portions  115  of the liquid outlet member  110  is fitted into the rectangular hole portions  61  of the adapter  47 . Note that in so doing, when the liquid container  100  is about to be coupled to one of the ink tanks  41  to  45  containing colored ink that does not match that of the liquid container  100 , the discrimination protrusions  62  provided in the rectangular hole portions  61  cannot be fitted into the fitting groove portions  116  provided in the fitting portions  115 . Accordingly, the liquid container  100  can be prevented from being erroneously coupled to one of the ink tanks  41  to  45  that contains the colored ink that does not match that of the liquid container  100 . 
     Note that as described above, the ink supplying unit  40  includes pairs of rectangular hole portions  61  in which each pair includes the discrimination protrusions  62  provided in a point symmetrical manner with the center of the circular hole portion  60  as the point of symmetry. By configuring each pair of rectangular hole portions  61  in the above manner, the discrimination protrusions  62  can be fitted into the fitting groove portions  116  of the fitting portions  115  regardless of which of the pair of fitting portions  115  of the matching liquid outlet member  110  is oriented towards the front side. Accordingly, regardless of the orientation of the pair of fitting portions  115  in the front-rear direction, the liquid container  100  containing the matching ink can be coupled and, accordingly, user-friendliness is increased. 
     When the liquid outlet member  110  is fitted into the circular hole portion  60  and the rectangular hole portions  61  of the adapter  47 , the ink port  56  at the middle of the circular hole portion  60  is inserted through the slit  121  of the valve member  120  and into the outlet  112  in the +Z direction. In so doing, since the height of the front end opening of the second flow path  55  is higher than the height of the front end opening of the first flow path  54  in the ink port  56 , the second flow path  55  is inserted first into the outlet  112  and the ink in the liquid storing chamber  101  flows into the second flow path  55 . 
     Subsequently, when the front end opening of the first flow path  54  is inserted into the outlet  112 , the atmospheric air inside the ink storage chamber  49  of the relevant one of the ink tanks  41  to  45  flows into the liquid storing chamber  101  through the first flow path  54 . As described above, the second flow path  55  of the ink port  56  functions as a liquid flow path, and the first flow path  54  functions as an atmospheric air flow path. Accordingly, even when the user does not perform any operation after the above, the ink inside the liquid container  100  and the atmospheric air inside the ink storage chamber  49  are exchanged and the ink is refilled into the ink storage chamber  49 . 
     Note that when the ink port  56  is inserted into the outlet  112  with the liquid outlet member  110  in a tilted position, and the front end opening of the first flow path  54  is inserted inside the outlet  112  before the front end opening of the second flow path  55 , the ink flows into the first flow path  54  and the atmospheric air flows into the second flow path  55 . Accordingly, in the liquid container  100 , the second flow path  55  may function as the atmospheric air flow path and the first flow path  54  may function as the liquid flow path. 
     1-3-5. First Member and Second Member that Constitute Container Body 
     Referring to  FIG. 9 , configurations of the first member  150  and the second member  160  that constitute the container body  102  will be described. The first member  150  includes a cylindrical side wall  151  that surrounds the liquid storing chamber  101  about the central axis CX. In the first exemplary embodiment, the side wall  151  is cylindrical. A central axis of the side wall  151  of the first member  150  coincides with the central axis CX of the liquid container  100 . The first member  150  is fabricated by injection molding. 
     The first member  150  includes a first opening  152  surrounded by an end portion of the side wall  151  on the front end side, and a second opening  153  surrounded by an end portion of the side wall  151  on the rear end side. The liquid outlet member  110  is attached to the first opening  152 . More specifically, an end portion of the pipe portion  111  on the rear end side that protrudes inside the connection portion  125  of the liquid outlet member  110  is fitted to the first opening  152 . 
     In the first exemplary embodiment, the first member  150  includes, at a front end portion thereof, a front end diameter reduced portion  154  to which the liquid outlet member  110  is attached. The front end diameter reduced portion  154  is configured by a portion of the side wall  151  and is a portion in the first member  150  in which the diameter has been reduced with respect to a portion on the rear end side with respect to the front end diameter reduced portion  154 . The first opening  152  is open at the front end portion of the front end diameter reduced portion  154 . The male screw portion  103  described above is provided on the surface of the front end diameter reduced portion  154  on the external circumference side. When the liquid outlet member  110  is attached, the front end diameter reduced portion  154  is covered by the connection portion  125  of the liquid outlet member  110 . 
     The second member  160  in the first exemplary embodiment is configured of a flat plate-shaped member. The second member  160  is configured of a disk-shaped member. The second member  160  is fabricated by injection molding. The second member  160  is joined to a rear end side of the first member  150  and seals the liquid storing chamber  101  from the second opening  153  side. In the first exemplary embodiment, the second member  160  is joined so as to close the second opening  153  of the first member  150 , and forms a bottom wall  162  of the container body  102 . 
       FIG. 13  is a schematic cross-sectional view in which a peripheral portion of a joint  170  between the first member  150  and the second member  160  illustrated in  FIG. 9  has been extracted. In the first exemplary embodiment, the first member  150  includes a peripheral protrusion  155  at the periphery of the second opening  153 . The peripheral protrusion  155  is provided at the periphery of the second opening  153  and extends outwards in the radial direction of the first member  150  from the side wall  151 . An external circumferential edge portion  161  of the second member  160  is formed to oppose the peripheral protrusion  155  in the central axis direction. 
     In the first exemplary embodiment, the joint  170  between the first member  150  and the second member  160  is configured as a portion in which the peripheral protrusion  155  of the first member  150  and the external circumferential edge portion  161  of the second member  160  have been welded to each other. The peripheral protrusion  155  and the external circumferential edge portion  161  of the second member  160  are welded to each other across the entire circumference of the side wall  151  and along a boundary BR between the first member  150  and the second member  160  in the liquid storing chamber  101 . 
     In the liquid container  100  of the first exemplary embodiment, the joint  170  is formed outside an area surrounded by the boundary BR between the first member  150  and the second member  160  when viewed in the central axis direction. When the joint  170  is provided in such a portion, access thereto with a tool or a device used in welding becomes easier and welding between the first member  150  and the second member  160  is facilitated. Accordingly, various joining techniques suitable for joining the first member  150  and the second member  160  can be used, and the sealing property of the liquid storing chamber  101  defined by the first member  150  and the second member  160  can be improved easily. Heat welding, for example, can be employed as the welding method. The welding method is not limited to any particular method and, for example, laser welding may be employed or ultrasonic welding may be employed. 
     Alternatively, solvent bonding that uses a solvent may be employed. 
     When the joint  170  is provided in the portion described above and when the joining between the first member  150  and the second member  160  is facilitated, the sealing property of the liquid storing chamber defined by the first member and the second member can be improved easily. Furthermore, by providing the joint  170  in the portion described above, welding can be performed while a load is applied to the peripheral protrusion  155  and the external circumferential edge portion  161 , which are the welding objects, in the central axis direction, which is the direction in which the peripheral protrusion  155  and the external circumferential edge portion  161  oppose each other, and while the peripheral protrusion  155  and the external circumferential edge portion  161  adhere to each other. Accordingly, by joining the first member  150  and the second member  160  to each other, the second opening  153  of the first member  150  can be sealed in a more watertight manner. Accordingly, leakage of the liquid from the boundary between the first member  150  and the second member  160  can be suppressed. 
     Note that as described above, the first member  150  and the second member  160  can be joined to each other by various welding methods described above with the liquid container  100  of the first exemplary embodiment. While laser welding can be employed to join the first member  150  and the second member  160  to each other, in such a case, either one of the first member  150  and the second member  160  will be formed of a material through which a laser beam can be transmitted, and the other one will be formed of a material that can absorb the laser beam. On the other hand, when a welding method other than laser welding is employed, limitations in the materials of the first member  150  and the second member  160 , which occurs when laser welding is employed, can be suppressed. In other words, there will be no limitations in the selection of the materials of the first member  150  and the second member  160 , and the design freedom will be increased. 
     In the liquid container  100  of the first exemplary embodiment, the container body  102  including a liquid storing chamber  101  therein is formed by joining the first member  150  and the second member  160  that have been fabricated separately by injection molding. Compared with when an integral container body including therein the liquid storing chamber  101  is fabricated by blow molding, the above configuration can reduce the manufacturing time and increase productivity. Accordingly, a reduction in the manufacturing cost can be achieved. 
     2. Second Exemplary Embodiment 
       FIG. 14  is a schematic perspective view illustrating a configuration of a liquid container  100 A according to a second exemplary embodiment.  FIG. 15  is a schematic side view of the liquid container  100 A and is a plan view of a lateral surface.  FIG. 16  is a schematic cross-sectional view of the liquid container  100 A cut along XVI-XVI and through the central axis CX illustrated in  FIG. 15 . A configuration of the liquid container  100 A of the second exemplary embodiment is substantially the same as the configuration of the liquid container  100  of the first exemplary embodiment other than the points described below. Note that in the second exemplary embodiment, for the sake of convenience, the side wall  151  of the first member  150  will be referred to as a “first side wall  151 ”, and the peripheral protrusion  155  will be referred to as a “first peripheral protrusion  155 ”. 
     As illustrated in  FIG. 16 , in the second exemplary embodiment, the second opening  153  of the first member  150  is open in the end portion of the front end diameter reduced portion  154  on the rear end side. Furthermore, as illustrated in  FIGS. 14 to 16 , the first peripheral protrusion  155  is formed in the rear end of the front end diameter reduced portion  154 . 
     As illustrated in  FIG. 16 , the second member  160  includes the bottom wall  162  that opposes the second opening  153  of the first member  150 , and a cylindrical second side wall  163  that extends from the bottom wall  162  towards the first member  150  side and that surrounds a portion of the liquid storing chamber  101 . As illustrated in  FIG. 14 , in the second exemplary embodiment, the second side wall  163  is cylindrical. A central axis of the second side wall  163  coincides with the central axis CX of the liquid container  100 A. As illustrated in  FIGS. 14 to 16 , a second peripheral protrusion  164  that extends outwards in the radial direction is formed at the end portion of the second side wall  163  on the front end side and across the entire periphery of the second side wall  163 . As illustrated in  FIG. 16 , a surface of the second peripheral protrusion  164  on the front end side is formed so as to oppose a surface of the first peripheral protrusion  155  on the rear end side in the central axis direction. In the liquid container  100 A, the first member  150  and the second member  160  are joined to each other at the joint  170  in which the first peripheral protrusion  155  and the second peripheral protrusion  164  are welded to each other. 
     As illustrated in  FIG. 16 , in the liquid container  100 A of the second exemplary embodiment, the joint  170  is formed outside an area surrounded by the boundary BR between the first member  150  and the second member  160  in the liquid storing chamber  101  when viewed in the central axis direction. Accordingly, similar to the liquid container  100  of the first exemplary embodiment described above, joining of the first member  150  and the second member  160  to each other is facilitated. According to the liquid container  100 A of the second exemplary embodiment, the internal space constituting the liquid storing chamber  101  can be provided inside the second member  160  as well. Furthermore, the joint  170  can be provided at a portion other than an external circumferential edge of the bottom wall in the container body  102 . Other than the above, the liquid container  100 A of the second exemplary embodiment can obtain various advantageous effects similar to those described in the first exemplary embodiment. 
     3. Third Exemplary Embodiment 
       FIG. 17  is a schematic perspective view illustrating a configuration of a liquid container  100 B according to a third exemplary embodiment.  FIG. 18  is a schematic side view of the liquid container  100 B and is a plan view of a lateral surface.  FIG. 19A  is a schematic cross-sectional view of the liquid container  100 B cut along XIXA-XIXA and through the central axis CX illustrated in  FIG. 18 .  FIG. 19B  is a schematic cross-sectional view in which a peripheral portion of the joint  170  between the first member  150  and the second member  160  illustrated in  FIG. 19A  has been extracted. A configuration of the liquid container  100 B of the third exemplary embodiment is substantially the same as the configuration of the liquid container  100  of the first exemplary embodiment other than the points described below. Note that in the third exemplary embodiment, for the sake of convenience, the side wall  151  of the first member  150  will be referred to as the “first side wall  151 ”. 
     In the third exemplary embodiment, the first member  150  does not include the peripheral protrusion  155  at an end portion of the first side wall  151  on the rear end side. Furthermore, in the third exemplary embodiment, the second member  160  includes the bottom wall  162  that opposes the second opening  153  of the first member  150 , and a cylindrical second side wall  163 B that extends from a surface of the bottom wall  162  on the front end side towards the first member  150  and that surrounds a portion of the liquid storing chamber  101 . In the third exemplary embodiment, the second side wall  163 B is cylindrical. A central axis of the second side wall  163 B coincides with the central axis CX of the liquid container  100 B. 
     In the third exemplary embodiment, the second side wall  163 B is inserted inside the second opening  153  of the first member  150 . An external circumferential surface of the second side wall  163 B is in contact with the entire periphery of an internal circumferential surface of the first member  150  in a watertight manner. It is only sufficient that the second side wall  163 B has a height tall enough to be in contact with the portion of the first member  150  on the rear end side alone. 
     As illustrated in  FIGS. 19A and 19B , in the third exemplary embodiment, the bottom wall  162  of the second member  160  includes an extension portion  165  that extends outwards in the radial direction of the second side wall  163 B. A surface of the extension portion  165  on the front end side is formed so as to, throughout the entire periphery thereof and in the central axis direction, oppose an end surface  151   t  of the first side wall  151  of the first member  150  on the rear end side. In the liquid container  100 B, the joint  170  joining the first member  150  and the second member  160  to each other is configured as a portion in which the end surface  151   t  of the first side wall  151  on the rear end side and the extension portion  165  of the second member  160  are welded to each other. 
     As illustrated in  FIG. 19B , in the liquid container  100 B of the third exemplary embodiment, the joint  170  is formed outside an area surrounded by the boundary BR between the first member  150  and the second member  160  in the liquid storing chamber  101  when viewed in the central axis direction. Accordingly, similar to the liquid container  100  of the first exemplary embodiment described above, joining of the first member  150  and the second member  160  to each other is facilitated. Furthermore, the joint  170  is not formed in the portion protruding outwards in the radial direction from the first side wall  151 ; accordingly, when the user holds the liquid container  100 B, the portion where the joint  170  is formed is prevented from being in the way. 
     In the liquid container  100 B of the third exemplary embodiment, since the external circumferential surface of the second side wall  163 B of the second member  160  and an internal circumferential surface of the first side wall  151  of the first member  150  are in surface contact with each other and are in contact with each other in a watertight manner, a seal line is formed. In the liquid container  100 B, since the second opening  153  side of the liquid storing chamber  101  is double sealed with the seal line and the joint  170 , leakage of the liquid from the liquid storing chamber  101  is suppressed further. Note that the portion where the external circumferential surface of the second side wall  163 B and the internal circumferential surface of the first side wall  151  are in surface contact with each other may be welded by laser welding. By so doing, the bonding strength between the first member  150  and the second member  160  is further increased and the sealing property of the second opening  153  in the first member  150  is improved further. Other than the above, the liquid container  100 B of the third exemplary embodiment can obtain various advantageous effects similar to those described in the first exemplary embodiment above. 
     4. Fourth Exemplary Embodiment 
       FIG. 20  is a schematic perspective view illustrating a configuration of a liquid container  100 C according to a fourth exemplary embodiment.  FIG. 21  is a schematic side view of the liquid container  100 C and is a plan view of a lateral surface.  FIG. 22A  is a schematic cross-sectional view of the liquid container  100 C cut along XXIIA-XXIIA and through the central axis CX illustrated in  FIG. 21 .  FIG. 22B  is a schematic cross-sectional view in which a peripheral portion of the joint  170  between the first member  150  and the second member  160  illustrated in  FIG. 22A  has been extracted. A configuration of the liquid container  100 C of the fourth exemplary embodiment is substantially the same as the configuration of the liquid container  100 B of the third exemplary embodiment other than the points described below. 
     As illustrated in  FIG. 22A , in the fourth exemplary embodiment, the first member  150  includes a first-member-side external circumferential wall portion  158  outside the first side wall  151 . As illustrated in  FIGS. 20, 21, and 22A , the first-member-side external circumferential wall portion  158  has a cylindrical shape that surrounds an external circumference of the first side wall  151 . The first-member-side external circumferential wall portion  158  is configured to have a rectangular cylindrical shape having a quadrilateral section. An end portion of the first-member-side external circumferential wall portion  158  on the front end side is bent towards the central axis CX and is coupled to a rear end of the front end diameter reduced portion  154 . The first-member-side external circumferential wall portion  158  extends in the central axis direction to a position that comes in contact with the extension portion  165  of the second member  160 . A protrusion  158   e  that protrudes outwards in the radial direction of the first-member-side external circumferential wall portion  158  is provided in an end portion of the first-member-side external circumferential wall portion  158  on the rear end side. In the fourth exemplary embodiment, the protrusion  158   e  is formed across the entire periphery of the first-member-side external circumferential wall portion  158  and the external circumference has a quadrilateral shape. In another exemplary embodiment, the protrusion  158   e  may be provided only in a portion of an external circumference of the first-member-side external circumferential wall portion  158 . 
     As illustrated in  FIG. 20 , in the fourth exemplary embodiment, an external circumference of the bottom wall  162  included in the second member  160  has a quadrilateral shape. As illustrated in  FIGS. 20, 21, 22A, and 22B , in the fourth exemplary embodiment, the extension portion  165  of the bottom wall  162  is formed so as to, in the central axis direction, oppose a surface of the protrusion  158   e  on the rear end side provided in the first-member-side external circumferential wall portion  158 . Referring to  FIGS. 22A and 22B , similar to that described in the third exemplary embodiment, the second side wall  163 B is inserted in the second opening  153 , and the external circumferential surface is in contact with the entire periphery of the internal circumferential surface of the first side wall  151  in a watertight manner. 
     Referring to  FIG. 22B , in the fourth exemplary embodiment, the joint  170  joining the first member  150  and the second member  160  to each other is configured as a portion in which the protrusion  158   e  provided in the end portion of the first-member-side external circumferential wall portion  158  on the rear end side and the bottom wall  162  of the second member  160  have been welded to each other. When viewed in the central axis direction, the joint  170  is positioned outside the boundary BR between the first member  150  and the second member  160  in the liquid storing chamber  101 . Accordingly, similar to the exemplary embodiments described above, joining of the first member  150  and the second member  160  to each other is facilitated in the liquid container  100 C of the fourth exemplary embodiment as well. 
     In the liquid container  100 C of the fourth exemplary embodiment, the second opening  153  side of the liquid storing chamber  101  is double sealed with the seal line formed by the internal circumferential surface of the first side wall  151  and the external circumferential surface of the second side wall  163 B that are in surface contact with each other, and with the joint  170 . Furthermore, in the fourth exemplary embodiment, the seal line formed between the internal circumferential surface of the first side wall  151  and the external circumferential surface of the second side wall  163 B, and the joint  170  are formed so as to be separated from each other in the radial direction. With such a structure, leakage of the liquid from the liquid storing chamber  101  is further suppressed compared with the configuration of the third exemplary embodiment. 
     In the liquid container  100 C of the fourth exemplary embodiment, since the first side wall  151  is covered by the first-member-side external circumferential wall portion  158 , the first side wall  151  is prevented from being damaged. Accordingly, leakage of the liquid from the liquid storing chamber  101  due to damage in the first side wall  151  is prevented. Other than the above, the liquid container  100 C of the fourth exemplary embodiment can obtain various advantageous effects similar to those described in the exemplary embodiments above. 
     5. Fifth Exemplary Embodiment 
       FIG. 23  is a schematic cross-sectional view of a liquid container  100 D of a fifth exemplary embodiment cut along a plane including the central axis CX. A configuration of the liquid container  100 D of the fifth exemplary embodiment is substantially the same as the configuration of the liquid container  100 C of the fourth exemplary embodiment other than that a dimension of the first side wall  151  in the central axis direction is shorter and that the dimension of the second side wall  163 B in the central axis direction is, in accordance with the above, longer. In the liquid container  100 D, the end portion of the first side wall  151  on the rear end side and an end portion of the second side wall  163 B on the front end side are positioned closer to the end portion of the front end diameter reduced portion  154  on the rear end side with respect to an end portion of the container body  102  on the rear end side. A distance between the second opening  153  and the joint  170  in the liquid container  100 D is longer than that in the liquid container  100 C of the fourth exemplary embodiment. Accordingly, even when the liquid in the liquid storing chamber  101  leaks through the boundary BR between the first member  150  and the second member  160  in the second opening  153 , the liquid that has leaked is, compared with the fourth exemplary embodiment, further prevented from leaking to a portion external to the container body  102  through the joint  170 . Other than the above, the liquid container  100 D of the fifth exemplary embodiment can obtain various advantageous effects similar to those described in the exemplary embodiments above. 
     6. Sixth Exemplary Embodiment 
       FIG. 24  is a schematic perspective view illustrating a configuration of a liquid container  100 E according to a sixth exemplary embodiment.  FIG. 25  is a schematic side view of the liquid container  100 E and is a plan view of a lateral surface.  FIG. 26  is a schematic cross-sectional view of the liquid container  100 E cut along XXVI-XXVI and through the central axis CX illustrated in  FIG. 25 . A configuration of the liquid container  100 E of the sixth exemplary embodiment is substantially the same as the configuration of the liquid container  100 D of the fifth exemplary embodiment other than the points described below. 
     As illustrated in  FIG. 26 , the first-member-side external circumferential wall portion  158  is not provided in the first member  150  of the sixth exemplary embodiment. The peripheral protrusion  155  similar to those described in the first exemplary embodiment and the second exemplary embodiment is provided at the periphery of the second opening  153  in the first member  150  of the sixth exemplary embodiment. As illustrated in  FIG. 24 , the peripheral protrusion  155  has a quadrilateral external circumference that corresponds to the shapes of a second-member-side external circumferential wall portion  166  of the second member  160  and a protruding edge portion  166   e  that are described later. 
     As illustrated in  FIG. 26 , the second member  160  includes the second-member-side external circumferential wall portion  166  on the outside of the second side wall  163 B. The second-member-side external circumferential wall portion  166  extends towards the first member  150  side in the central axis direction from an end of the external circumference of the bottom wall  162  to where the second opening  153  of the first member  150  is positioned. As illustrated in  FIGS. 24, 25, and 26 , the second-member-side external circumferential wall portion  166  has a cylindrical shape that surrounds the external circumference of the second side wall  163 B. As illustrated in  FIG. 24 , the second-member-side external circumferential wall portion  166  in the sixth exemplary embodiment has a quadrilateral cross section and is configured to have a rectangular cylindrical shape. 
     As illustrated in  FIGS. 24, 25, and 26 , the protruding edge portion  166   e  that protrudes outwards in the radial direction of the second-member-side external circumferential wall portion  166  is provided at an end portion of the second-member-side external circumferential wall portion  166  on the first member  150  side. In the sixth exemplary embodiment, the protruding edge portion  166   e  is formed across the entire periphery of the second-member-side external circumferential wall portion  166  and has a quadrilateral external circumference. A surface of the protruding edge portion  166   e  on the front end side opposes a surface of the peripheral protrusion  155 , which is included in the first member  150 , on the rear end side in the central axis direction. Note that in the other exemplary embodiments, the protruding edge portion  166   e  may be provided in only a portion of the external circumference of the second-member-side external circumferential wall portion  166 . 
     Referring to  FIG. 26 , in the liquid container  100 E of the sixth exemplary embodiment, the joint  170  joining the first member  150  and the second member  160  to each other is configured as a portion in which the peripheral protrusion  155  of the first member  150  and the protruding edge portion  166   e  provided in the second-member-side external circumferential wall portion  166  of the second member  160  are welded to each other. When viewed in the central axis direction, the joint  170  is positioned outside an area surrounded by the boundary BR between the first member  150  and the second member  160  in the liquid storing chamber  101 . Accordingly, similar to the exemplary embodiments described above, joining of the first member  150  and the second member  160  to each other is facilitated in the liquid container  100 E of the sixth exemplary embodiment as well. 
     In the sixth exemplary embodiment as well, the second side wall  163 B of the second member  160  is, similar to the liquid container  100 D of the fifth exemplary embodiment, inserted in the second opening  153  of the first member  150 , and the external circumferential surface is in contact with the entire periphery of the internal circumferential surface of the first side wall  151  in a watertight manner. Accordingly, in the liquid container  100 E as well, the second opening  153  of the first member  150  is double sealed with the seal line formed by surface contact between the internal circumferential surface of the first side wall  151  and the external circumferential surface of the second side wall  163 B, and the joint  170  formed by welding. 
     In the liquid container  100 E of the sixth exemplary embodiment, since the second side wall  163 B is covered by the second-member-side external circumferential wall portion  166 , the second side wall  163 B is prevented from being damaged. Accordingly, leakage of the liquid from the liquid storing chamber  101  due to damage in the second side wall  163 B is prevented. Other than the above, the liquid container  100 E of the sixth exemplary embodiment can obtain various advantageous effects similar to those described in the exemplary embodiments above. 
     7. Seventh Exemplary Embodiment 
       FIG. 27  is a schematic cross-sectional view of a liquid container  100 F of a seventh exemplary embodiment cut along a plane including the central axis CX. A configuration of the liquid container  100 F of the seventh exemplary embodiment is substantially the same as the configuration of the liquid container  100 E of the sixth exemplary embodiment other than the points described below. In the liquid container  100 F of the seventh exemplary embodiment, the first side wall  151  is extended in the central axis direction to the bottom wall  162  of the second member  160  without changing the position of the peripheral protrusion  155 . Furthermore, the length of the second side wall  163 B in the central axis direction is shortened in accordance with the position of the end portion of the extended first side wall  151  on the rear end side. In the liquid container  100 F of the seventh exemplary embodiment, since the first side wall  151  is covered by the second-member-side external circumferential wall portion  166 , the first side wall  151  is prevented from being damaged. Furthermore, a distance between the second opening  153  and the joint  170  is longer than that in the liquid container  100 E of the sixth exemplary embodiment. Accordingly, even when the liquid in the liquid storing chamber  101  leaks through the boundary BR between the first member  150  and the second member  160  in the second opening  153 , the liquid that has leaked is, compared with the sixth exemplary embodiment, further prevented from leaking to a portion external to the container body  102  through the joint  170 . Other than the above, the liquid container  100 F of the seventh exemplary embodiment can obtain various advantageous effects similar to those described in the exemplary embodiments above. 
     8. Eighth Exemplary Embodiment 
       FIG. 28  is a schematic perspective view illustrating a configuration of a liquid container  100 G according to an eighth exemplary embodiment.  FIG. 29  is a schematic side view of the liquid container  100 G and is a plan view of a lateral surface.  FIG. 30  is a schematic cross-sectional view of the liquid container  100 G cut along XXX-XXX and through the central axis CX illustrated in  FIG. 29 . A configuration of the liquid container  100 G of the eighth exemplary embodiment is substantially the same as the configuration of the liquid container  100 C of the fourth exemplary embodiment illustrated in  FIGS. 20 to 22B  other than that the first member  150  and the second member  160  are, in place of the joint  170 , joined to each other by a joint  171  formed by heat caulking. 
     As illustrated in  FIG. 30 , the joint  171  includes heat caulking portions  171   c  that join the protrusion  158   e  of the first-member-side external circumferential wall portion  158  and the extension portion  165  to each other by heat caulking. As illustrated in  FIG. 28 , a plurality of heat caulking portions  171   c  are arranged in the joint  171  along the external circumference of the first-member-side external circumferential wall portion  158 . Four heat caulking portions  171   c  are provided in the eighth exemplary embodiment. A single heat caulking portion  171   c  is provided at the middle of each side of the external circumference of the first-member-side external circumferential wall portion  158 . 
     As illustrated in  FIG. 30 , the heat caulking portions  171   c  include columnar portions  171   p  that protrude from the protrusion  158   e  in the central axis direction, and through holes  171   h , which penetrate through the extension portion  165  and though which the columnar portions  171   p  are inserted. End portions of the columnar portions  171   p  on the rear end side are widened in the radial direction at positions where the columnar portions  171   p  protrude to the rear end side of the extension portion  165  from the through holes  171   h  and are engaged to peripheral portions of the through holes  171   h.    
     In the liquid container  100 G of the eighth exemplary embodiment, the joint  171  formed by heat caulking can join the first member  150  and the second member  160  to each other more easily compared to when the protrusion  158   e  and the extension portion  165  are welded to each other in the entire circumference of the first-member-side external circumferential wall portion  158 . Furthermore, in the liquid container  100 G of the eighth exemplary embodiment, as illustrated in  FIG. 30  and similar to the liquid container  100 C of the fourth exemplary embodiment, the second opening  153  is sealed by surface contact between the internal circumferential surface of the first side wall  151  and the external circumferential surface of the second side wall  163 B. Accordingly, leakage of the liquid in the liquid storing chamber  101  through the boundary BR between the first member  150  and the second member  160  can be suppressed. Other than the above, the liquid container  100 G of the eighth exemplary embodiment can obtain various advantageous effects similar to those described in the exemplary embodiments above. 
     9. Ninth Exemplary Embodiment 
       FIG. 31  is a schematic perspective view illustrating a configuration of a liquid container  100 H according to a ninth exemplary embodiment.  FIG. 32  is a schematic side view of the liquid container  100 H and is a plan view of a lateral surface.  FIG. 33  is a schematic cross-sectional view of the liquid container  100 H cut along XXXIII-XXXIII and through the central axis CX illustrated in  FIG. 32 . The liquid container  100 H of the ninth exemplary embodiment corresponds to the liquid container  100 E of the sixth exemplary embodiment in which the joint  171  formed by heat caulking described in the eighth exemplary embodiment illustrated in  FIGS. 24 to 26  is adopted in place of the joint  170  formed by welding. In the liquid container  100 H of the ninth exemplary embodiment, the peripheral protrusion  155  of the first member  150  and the protruding edge portion  166   e  of the second member  160  are joined to each other by the heat caulking portions  171   c  provided in plurality of portions. In the liquid container  100 H of the ninth exemplary embodiment, similar to the liquid container  100 G of the eighth exemplary embodiment, the first member  150  and the second member  160  can be easily joined to each other by heat caulking. Furthermore, as illustrated in  FIG. 33 , since the second opening  153  is sealed in a watertight manner by surface contact between the internal circumferential surface of the first side wall  151  and the external circumferential surface of the second side wall  163 B, leakage of the liquid from the liquid storing chamber  101  can be suppressed. Other than the above, the liquid container  100 H of the ninth exemplary embodiment can obtain various advantageous effects similar to those described in the exemplary embodiments above. 
     10. Tenth Exemplary Embodiment 
       FIG. 34  is a schematic perspective view illustrating a configuration of a liquid container  100 I according to a tenth exemplary embodiment.  FIG. 35  is a schematic side view of the liquid container  100 I and is a plan view of a lateral surface.  FIG. 36  is a schematic cross-sectional view of the liquid container  100 I cut along XXXVI-XXXVI and through the central axis CX illustrated in  FIG. 35 . A configuration of the liquid container  100 I of the tenth exemplary embodiment is substantially the same as the configuration of the liquid container  100 B of the third exemplary embodiment illustrated in  FIGS. 17 to 19B  other than the points described below. 
     In the liquid container  100 I of the tenth exemplary embodiment, in place of the joint  170  formed by welding, the joint between the first member  150  and the second member  160  is configured of a screw portion  172  described below. As illustrated in  FIG. 36 , in the second member  160  of the liquid container  100 I, a second-member-side external circumferential wall portion  1661  that extends in the central axis direction towards the first member  150  side is provided in the external circumferential edge of the bottom wall  162 . As illustrated in  FIGS. 34 to 36 , the second-member-side external circumferential wall portion  1661  is cylindrical and surrounds the external circumference of the first side wall  151 . In the tenth exemplary embodiment, the second-member-side external circumferential wall portion  1661  is cylindrical and surrounds the end portion of the first side wall  151  on the rear end side. As illustrated in  FIG. 36 , the screw portion  172  is provided in a portion where an internal circumferential surface of the second-member-side external circumferential wall portion  1661  and an external circumferential surface of the first side wall  151  oppose each other. A female screw portion  172   a  is provided in the internal circumferential surface of the second-member-side external circumferential wall portion  1661 , and a male screw portion  172   b  screwed together with the female screw portion  172   a  is provided in the external circumferential surface of the first side wall  151 . 
     In the liquid container  100 I of the tenth exemplary embodiment, the first member  150  and the second member  160  can be joined to each other easily with the screw portion  172 . Furthermore, in the liquid container  100 I of the tenth exemplary embodiment, as illustrated in  FIG. 36  and similar to the liquid container  100 B of the third exemplary embodiment, a seal line is formed by surface contact between the external circumferential surface of the second side wall  163 B and the internal circumferential surface of the first side wall  151 . With the above, since the second opening  153  of the first member  150  is double sealed with the seal line and the screw portion  172  outside the seal line, leakage of the liquid from the liquid storing chamber  101  can be suppressed in a more effective manner. Furthermore, the liquid container  100 I of the tenth exemplary embodiment can protect the seal line formed between the external circumferential surface of the second side wall  163 B and the internal circumferential surface of the first side wall  151  with the second-member-side external circumferential wall portion  1661 . Other than the above, the liquid container  100 I of the tenth exemplary embodiment can obtain various advantageous effects similar to those described in the exemplary embodiments above. 
     11. Eleventh Exemplary Embodiment 
       FIG. 37  is a schematic perspective view illustrating a configuration of a liquid container  100 J according to an eleventh exemplary embodiment.  FIG. 38  is a schematic side view of the liquid container  100 J and is a plan view of a lateral surface.  FIG. 39  is a schematic cross-sectional view of the liquid container  100 J cut along XXXIX-XXXIX and through the central axis CX illustrated in  FIG. 38 . A configuration of the liquid container  100 J of the eleventh exemplary embodiment is substantially the same as the configuration of the liquid container  100 C of the fourth exemplary embodiment illustrated in  FIGS. 20 to 22B  other than the points described below. 
     The liquid container  100 J of the eleventh exemplary embodiment corresponds to the liquid container  100 C of the fourth exemplary embodiment in which, in place of the joint  170  formed by welding, the screw portion  172  described in the tenth exemplary embodiment is applied as the joint between the first member  150  and the second member  160 . As illustrated in  FIGS. 37 to 39 , in the eleventh exemplary embodiment, the first-member-side external circumferential wall portion  158  is cylindrical and the bottom wall  162  has a circular external circumference. As illustrated in  FIG. 39 , the protrusion  158   e  described in the fourth exemplary embodiment is not provided in the end portion of the first-member-side external circumferential wall portion  158  on the rear end side. As illustrated in  FIGS. 37 to 39 , the second-member-side external circumferential wall portion  1661  similar to that described in the tenth exemplary embodiment is provided at the external circumferential edge of the bottom wall  162  of the second member  160 . The second-member-side external circumferential wall portion  1661  surrounds the end portion of the first-member-side external circumferential wall portion  158  on the rear end side. The screw portion  172  is provided at a portion where the internal circumferential surface of the second-member-side external circumferential wall portion  1661  and an external circumferential surface of the first-member-side external circumferential wall portion  158  oppose each other. The female screw portion  172   a  is provided in the internal circumferential surface of the second-member-side external circumferential wall portion  1661  and the male screw portion  172   b  screwed together with the female screw portion  172   a  is provided in the external circumferential surface of the first-member-side external circumferential wall portion  158 . 
     In the liquid container  100 J of the eleventh exemplary embodiment, the first member  150  and the second member  160  can be joined to each other easily with the screw portion  172 . Other than the above, the liquid container  100 J of the eleventh exemplary embodiment can obtain various advantageous effects similar to those described in the exemplary embodiments above. 
     12. Other Exemplary Embodiments 
     The various configurations described in the exemplary embodiments described above can be changed in the following manner, for example. Other exemplary embodiments described below are, in a similar manner to the exemplary embodiments described above, regarded as examples of configurations that embody the technique of the present disclosure. 
     Another Exemplary Embodiment 1 
     The shapes of the liquid containers  100 , and  100 A to  100 J may be changed from those described in the exemplary embodiments described above. For example, the external shape of the container body  102  is not limited to a columnar shape or a square columnar shape. The container body  102  may have a shape in which the sectional area increases from the front end side towards the rear end side. Furthermore, it is only sufficient that the first side wall  151 , the second side walls  163  and  163 B, the first-member-side external circumferential wall portion  158 , and the second-member-side external circumferential wall portion  166  have a cylindrical shape and may have an elliptical cross-sectional shape or a polygonal cross-sectional shape. 
     Another Exemplary Embodiment 2 
     The configuration of the liquid outlet member  110  is not limited to that described in each of the exemplary embodiments described above. For example, the liquid outlet member  110  does not have to include the valve member  120 . Furthermore, the liquid outlet member  110  may be configured of a tube-shaped member that can be attached to the first opening  152 . 
     Another Exemplary Embodiment 3 
     The configurations of the exemplary embodiments described above can be combined as appropriate. For example, in place of the joint  170 , the joint  171  formed by heat caulking can be applied to the liquid container  100  of the first exemplary embodiment. However, in such a case, it is desirable that a seal portion is provided in the boundary between the first member  150  and the second member  160 . Furthermore, in place of the joint  170 , the joint  171  formed by heat caulking can be applied to the liquid container  100 D of the fifth exemplary embodiment or to the liquid container  100 F of the seventh exemplary embodiment. 
     13. Example Configurations 
     The technique of the present disclosure is not limited to the exemplary embodiments and the examples described above and may be implemented through various configurations that do not depart from the scope of the disclosure. For example, the technique of the present disclosure can be implemented through the following configurations. The technical features of the exemplary embodiments described above that correspond to the technical features of the configurations described below may be appropriately replaced or combined in order to overcome a portion or all of the issues that the technique of the present disclosure is to overcome, or in order to achieve a portion or all of the effects that the technique of the present disclosure is to provide. Furthermore, the technical features that are not described in the present specification as an essential feature may be omitted as appropriate. 
     (1) A first configuration is provided as a liquid container. A liquid container of such a configuration includes a liquid storing chamber in which a liquid is stored, a first member that includes a cylindrical first side wall that surrounds at least a portion of the liquid storing chamber, a first opening surrounded by a first end portion of the first side wall, and a second opening surrounded by a second end portion of the first side wall, a liquid outlet member that includes an outlet through which the liquid flows out, the liquid outlet member being attached to the first opening, and a second member joined to the first member, the second member sealing the liquid storing chamber from a second opening side. When viewed in a central axis direction of the first member, a joint between the first member and the second member is formed outside an area surrounded by a boundary between the first member and the second member in the liquid storing chamber. 
     In the liquid container of such a configuration, since the joint is provided at a position where access thereto with a tool or a device used in joining is facilitated, various appropriate joining techniques can be used in joining the first member and the second member to each other. Furthermore, the joining between the first member and the second member is facilitated and the sealing property of the liquid storing chamber defined by the first member and the second member can be improved easily. 
     (2) In the liquid container having the configuration described above, the second member may include a bottom wall that opposes the second opening of the first member, and a cylindrical second side wall that extends from the bottom wall towards a first member side and that surrounds at least a portion of the liquid storing chamber. 
     With the liquid container of such a configuration, the liquid storing chamber can be easily defined by the first side wall of the first member, the second side wall of the second member, and the bottom wall. 
     (3) In the liquid container having the configuration described above, the first member may include a peripheral protrusion that is provided at a periphery of the second opening and that extends outwards from the first side wall in a radial direction of the first member, and the joint may be a portion in which the peripheral protrusion and the second member are joined to each other. 
     In the liquid container of such a configuration, since the peripheral protrusion in which the joint is formed extends in the radial direction, welding between the first member and the second member is facilitated further. 
     (4) In the liquid container having the configuration described above, the second side wall may be inserted in the second opening and may be in contact with an entire circumference of an internal circumferential surface of the first side wall, the bottom wall may include an extension portion that extends in a radial direction of the second side wall and that opposes an entire circumference of an end surface of the first side wall that surrounds the second opening, and the joint may be a portion in which the extension portion and the end surface of the first side wall are joined to each other. 
     In the liquid container of such a configuration, welding of the bottom wall to the first member is facilitated. 
     (5) In the liquid container having the configuration described above, the second side wall may be inserted in the second opening and may be in contact with an entire circumference of an internal circumferential surface of the first side wall, the first member may further include a cylindrical first-member-side external circumferential wall portion that surrounds an external circumference of the first side wall, and the joint may be a portion in which an end portion of the first-member-side external circumferential wall portion on a second member side and the second member are joined to each other. 
     In the liquid container of such a configuration, the sealing property of the liquid storing chamber can be improved by contact between the external circumferential surface of the second side wall and the internal circumferential surface of the first side wall. 
     Furthermore, the first side wall and the second side wall can be protected with the first-member-side external circumferential wall portion. Moreover, the first member and the second member can be joined to each other easily at the end portion of the first-member-side external circumferential wall portion. 
     (6) In the liquid container having the configuration described above, a protrusion that protrudes outwards in a radial direction of the first-member-side external circumferential wall portion may be provided at the end portion of the first-member-side external circumferential wall portion on the second member side, the bottom wall may include an extension portion that extends in a radial direction of the second side wall from an external circumference of the second side wall and that is in contact with the protrusion, and the joint may be a portion in which the protrusion and the extension portion are joined to each other. 
     In the liquid container of such a configuration, since the protrusion of the first-member-side external circumferential wall portion and the extension portion of the second side wall, in which the joint is formed, protrude in the radial direction, joining of the first member and the second member to each other is further facilitated. 
     (7) In the liquid container having the configuration described above, the joint may include a heat caulking portion that joins the protrusion and the extension portion to each other by heat caulking. 
     In the liquid container of such a configuration, the first member and the second member can be easily joined to each other by heat caulking. 
     (8) In the liquid container having the configuration described above, the second side wall may be inserted in the second opening and may be in contact with an entire circumference of an internal circumferential surface of the first side wall, the first member may include a peripheral protrusion that extends outwards from the first side wall in a radial direction of the first member and that surrounds the first side wall, the second member may further include a cylindrical second-member-side external circumferential wall portion that extends from the bottom wall towards the first member side and that surrounds an external circumference of the second side wall, and the joint may be a portion in which an end portion of the second-member-side external circumferential wall portion on the first member side and peripheral protrusion are joined to each other. 
     In the liquid container of such a configuration, the sealing property of the liquid storing chamber can be improved by contact between the external circumferential surface of the second side wall and the internal circumferential surface of the first side wall. 
     Furthermore, the first side wall and the second side wall can be protected with the second-member-side external circumferential wall portion. Moreover, the first member and the second member can be joined to each other easily at the end portion of the second-member-side external circumferential wall portion. 
     (9) In the liquid container having the configuration described above, a protruding edge portion that protrudes outwards in a radial direction of the second-member-side external circumferential wall portion and that opposes the peripheral protrusion of the first member may be provided at the end portion of the second-member-side external circumferential wall portion on the first member side, and the joint may be a portion in which the protruding edge portion and the peripheral protrusion are joined to each other. 
     In the liquid container of such a configuration, since the peripheral protrusion of the first member and the protruding edge portion of the second-member-side external circumferential wall portion, in which the joint is formed, protrude in the radial direction, joining of the first member and the second member to each other is further facilitated. 
     (10) In the liquid container having the configuration described above, the joint may include a heat caulking portion that joins the protruding edge portion and the peripheral protrusion to each other by heat caulking. 
     In the liquid container of such a configuration, the first member and the second member can be easily joined to each other by heat caulking. 
     (11) In the liquid container having the configuration described above, the second side wall may be inserted in the second opening and may be in contact with an entire circumference of an internal circumferential surface of the first side wall, the second member may further include a cylindrical second-member-side external circumferential wall portion that extends from the bottom wall towards the first member side and that surrounds an external circumference of the first side wall, and the joint may include a screw portion provided at a portion in which an internal circumferential surface of the second-member-side external circumferential wall portion and an external circumferential surface of the first side wall oppose each other. 
     In the liquid container of such a configuration, the first member and the second member can be joined to each other easily with the screw structure. Furthermore, the sealing property of the liquid storing chamber can be improved by contact between the external circumferential surface of the second side wall and the internal circumferential surface of the first side wall. 
     (12) In the liquid container having the configuration described above, the second side wall may be in contact with an entire circumference of an internal circumferential surface of the first side wall, the first member may further include a cylindrical first-member-side external circumferential wall portion that surrounds an external circumference of the first side wall and that extends towards the second member, the second member may further include a cylindrical second-member-side external circumferential wall portion that extends from the bottom wall towards the first member side and that surrounds an external circumference of the first-member-side external circumferential wall portion, and the joint may include a screw portion provided at a portion in which an internal circumferential surface of the second-member-side external circumferential wall portion and an external circumferential surface of the first-member-side external circumferential wall portion oppose each other. 
     In the liquid container of such a configuration, the first member and the second member can be joined to each other easily with the screw structure. Furthermore, the sealing property of the liquid storing chamber can be improved by contact between the external circumferential surface of the second side wall and the internal circumferential surface of the first side wall. 
     Furthermore, the first side wall can be protected with the first-member-side external circumferential wall portion. 
     14. Others 
     The technique of the present disclosure can be implemented in various configurations other than the liquid container. The technique of the present disclosure can be implemented in configurations such as, for example, a method of manufacturing a liquid container, a structure of a liquid container, a liquid consuming system, a liquid refilling system, and a method of refilling a liquid into a liquid consuming device. 
     Furthermore, the configuration of the liquid container of the present disclosure can be applied to liquid containers that are used in any liquid ejecting apparatuses that consume a liquid other than ink. For example, the configuration of the liquid container of the present disclosure can be applied to liquid containers that are used in various liquid ejecting apparatuses described below. 
     (1) An image recording device such as a facsimile machine.
 
(2) A coloring material ejection device used to manufacture a color filter of an image display device such as a liquid crystal display.
 
(3) An electrode material ejection device used to form electrodes of organic electroluminescence (EL) displays and surface emitting displays (field emission display or FED).
 
(4) A liquid ejection device that ejects a liquid containing bio-organic matter to manufacture biochips.
 
(5) A sample ejection device serving as a precision pipette.
 
(6) Lubricating oil injection device.
 
(7) Liquid resin injection device.
 
(8) A liquid ejection device that ejects lubricant oil in a pinpoint manner to precision instruments such as a watch and a camera.
 
(9) A liquid ejection device that sprays transparent liquid resin such as ultraviolet curing resin on a substrate in order to form a hemispherical microlens (optical lens) used in optical communication elements and the like.
 
(10) A liquid ejection device that ejects acid or alkaline etching solution for etching substrates and the like.
 
(11) A liquid ejection device including a liquid consuming head that ejects any micro amount of droplets other than the above.
 
     Note that the liquid contained in the liquid container of the present disclosure may be any material in liquid phase. Accordingly, the “liquid” in the present disclosure includes a material in a liquid state with high or low viscosity, and materials in a liquid state such as sol, gel water, other inorganic solvents, an organic solvent, a solution, liquid resin, and liquid metal (metallic melt). Furthermore, not just liquid as a state of matter, the liquid includes particles of functional material including a solid body such as pigment or metal particle that is dissolved, dispersed, or mixed in a solvent. Other than the above, a representative example of the liquid includes ink, liquid crystal, and others that have been described in the exemplary embodiments described above. Note that “ink” includes various liquid-form compositions such as a typical aqueous ink, solvent ink, gel ink, and a hot melt ink.