JP2018001525A - Liquid container and liquid jetting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a liquid container in which the ink is less likely to leak to outside.SOLUTION: A liquid container 10 capable of storing an ink 17 comprises: a liquid storage chamber 29; and a liquid pouring part 35 capable of pouring the ink 17 to the liquid storage chamber 29. The liquid pouring part 35 comprises: an outer end 36 which is formed on a first wall 61 for defining a liquid storage chamber 29, and is opened to outside; and an inner end 38 which is opened to inside of the liquid storage chamber 29. When the first wall 61 is projected in a horizontal plane in a use posture, the first wall 61 forms a quadrilateral 61C having a first side 101 and a second side 102 crossing the first side 101, the quadrilateral 61C being defined into four areas 111, 112, 113, 114 by a first center line 101A passing a center of the first side 101 and a second center line 102A passing a center of the second side 102, and the liquid pouring part 35 is configured so that, the inner end 38 is arranged on any of the four areas 111, 112, 113, 114.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a liquid container for storing a liquid and a liquid ejecting apparatus on which the liquid container is mounted.

Conventionally, an inkjet printer is known as an example of a liquid ejecting apparatus. In the ink jet printer, a liquid (ink) stored in a tank which is an example of a liquid storage container (liquid container) is supplied to the liquid ejecting head and discharged from the liquid ejecting head onto the printing medium, whereby the print medium is obtained. Is printed (for example, Patent Document 1).
In the liquid ejecting apparatus described in Patent Literature 1, a tank that stores ink includes a storage unit that stores ink, an ink injection unit that injects ink into the storage unit, an introduction unit that introduces air into the storage unit, and an introduction unit. It has an air introduction valve etc. provided inside. The operator can replenish new ink from the ink injection section into the storage section. The air introduction valve can prevent the movement of the atmosphere from the inside of the housing portion to the outside of the housing portion, and the liquid contained in the housing portion can also be moved from the inside of the housing portion to the outside of the housing portion by the air introduction valve. Be disturbed.
With this configuration, the ink in the storage portion is prevented from leaking outside from the introduction portion.

JP, 2015-131433, A

  However, in the liquid ejecting apparatus described in Patent Document 1, for example, when an operator accidentally overturns the tank when refilling with new ink or when the liquid ejecting apparatus is moved, the ink in the container is not contained. It has been desired to further reduce the risk of leakage from the ink injection portion to the outside of the storage portion.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A liquid container according to this application example is a liquid container that can store a liquid to be supplied to a liquid ejecting head, and includes one liquid storage chamber that can store the liquid, and the liquid storage chamber. A liquid injection part capable of injecting a liquid, wherein the liquid injection part is formed on a first wall defining the liquid storage chamber and is open to the outside, and the liquid storage The first wall has a first side and a second side intersecting with the first side when the first wall is projected onto a horizontal plane in a use posture. The quadrilateral is divided into four regions by a first center line passing through the center of the first side and a second center line passing through the center of the second side, and the liquid injection part is The inner end is provided so as to be disposed in one of the four regions.

By disposing the liquid injection part in any of the four regions defined by the first center line passing through the center of the first side and the second center line passing through the center of the second side, the liquid injection part is It is formed at a position close to one of the first side and the second side, and is formed at a position far from the other side.
Thereby, for example, when the liquid container falls and the posture of the liquid storage chamber changes so that the surface including the side far from the region where the liquid injection portion is formed becomes the bottom surface, the liquid injection portion and the bottom surface Since the distance between them is increased, the liquid is less likely to leak outward from the liquid injection portion (hereinafter, the lowest surface of the liquid storage chamber is referred to as a bottom surface). That is, when the liquid container falls, the liquid injection part is disposed at a position higher than the bottom surface, so that the liquid stored in the liquid storage chamber is unlikely to leak to the outside of the liquid storage chamber.
Furthermore, since each of the liquid injection part and the liquid storage chamber is one, the liquid contained in the liquid container is of one type and does not mix with other types of colors.

  Application Example 2 In the liquid container according to the application example, the liquid storage chamber has a second wall extending in a direction intersecting the first wall, and the first wall is located on the second wall side. It is preferable that the liquid injection part is provided on the second wall side of the first wall.

The first wall defines a liquid storage chamber and becomes the upper surface of the liquid storage chamber in the use posture. The second wall that intersects the first wall serves as a side surface of the liquid storage chamber in the use posture.
When the posture of the liquid storage chamber changes so that the liquid container falls, the second wall becomes the upper surface of the liquid storage chamber, and the first wall becomes the side surface of the liquid storage chamber, Since the distance between the liquid injection part and the bottom surface is increased, the liquid is less likely to leak from the liquid injection part to the outside.

  Further, when the posture of the liquid storage chamber changes so that the second wall becomes the upper surface and the first wall becomes the side surface of the liquid storage chamber, the first wall forming the side surface is the upper surface (second wall). Since the liquid storage chamber is inclined in the direction from the bottom to the bottom, the position of the liquid surface from the bottom can be kept low compared to the case where the first wall forming the side is not inclined, The liquid can be further prevented from leaking outward from the liquid injection part.

  Application Example 3 In the liquid container according to the application example, the liquid storage chamber extends in a direction intersecting the first wall, a second wall extending in a direction intersecting the first wall, and a direction intersecting the second wall; Preferably, the first wall and the bottom wall are opposed to each other, and the bottom wall has an inclined portion that is inclined so that the second wall side becomes higher.

  The posture of the liquid storage chamber is such that the liquid container falls, the second wall becomes the upper surface of the liquid storage chamber, the first wall becomes one side surface of the liquid storage chamber, and the bottom wall becomes the opposite side surface. When changed, the bottom wall forming the other side surface is inclined so that the liquid storage chamber becomes wider in the direction from the upper surface (second wall) to the bottom surface, similarly to the first wall forming one side surface. . Therefore, compared with the case where the bottom wall which makes the other side is not inclined, the position of the liquid surface from the bottom surface can be kept low, and the liquid is less likely to leak outward from the liquid injection portion.

  Application Example 4 In the liquid container according to the application example, the liquid storage chamber further includes a third wall extending in a direction intersecting the first wall, the second wall, and the bottom wall, A fourth wall facing the third wall, wherein the liquid injection part is provided on the first wall closer to the third wall than the fourth wall, and the bottom wall It is preferable to have an inclined portion inclined from the third wall toward the fourth wall so that the fourth wall side is lowered.

  The liquid container falls, the third wall becomes the upper surface of the liquid storage chamber, the first wall becomes one side surface of the liquid storage chamber, the second wall and the bottom wall become the other side surfaces facing each other, and the fourth wall When the posture of the liquid storage chamber changes so that the wall becomes the bottom surface, the bottom wall forming the other side surface has a liquid storage chamber in the direction from the top surface (third wall) to the bottom surface (fourth wall). Inclined to widen. Therefore, compared with the case where the bottom wall which makes the other side is not inclined, the position of the liquid surface from the bottom surface can be kept low, and the liquid is less likely to leak outward from the liquid injection portion.

  Application Example 5 In the liquid container according to the application example, the second wall is provided with an upper limit line indicating an upper limit of the amount of the liquid that can be injected into the liquid storage chamber, and the liquid storage chamber is externally provided. When the viewing wall is viewed from a direction orthogonal to the viewing wall in a use posture, the center line passing through the center of the liquid injection part is the center of the upper limit line. It is preferable to be arranged at a position different from the passing center line.

  If the center line of the upper limit line is arranged at a position different from the center line of the liquid injection part, the upper limit line is arranged at a position away from the liquid injection part, and it becomes easier to visually recognize the upper limit line when injecting liquid from the liquid injection part. Therefore, the liquid is not injected beyond the upper limit line, and the liquid can be prevented from overflowing from the liquid injection portion and leaking outside.

  Application Example 6 It is preferable that the liquid container according to the application example includes a liquid leakage prevention wall that protrudes to a position spaced apart from the liquid injection part on the first wall and surrounds the liquid injection part.

  When injecting liquid into the liquid storage chamber in the use posture of the liquid container, if the liquid leaks from the liquid injection part, the leaked liquid is blocked by the liquid leakage prevention wall, so that the liquid flows out to the outside of the liquid leakage prevention wall. Can be prevented.

  Application Example 7 In the liquid container according to the application example, it is preferable that the liquid injection portion includes a cylindrical portion having a through hole communicating with the opening at the outer end and the opening at the inner end.

  The opening at the outer end of the liquid injection portion is separated (projected) from the first wall by the cylindrical portion and is disposed higher than the first wall. For example, the opening at the outer end of the liquid injection portion is the first wall. The liquid is less likely to leak from the opening at the outer end of the liquid injection portion as compared to the case where the liquid is provided lower.

  Application Example 8 The liquid container according to the application example further includes an atmosphere chamber above the liquid storage chamber, the atmosphere chamber having a wall positioned above the liquid injection portion, and the wall includes: When the liquid is injected into the liquid injection part from the liquid injection container for injecting the liquid into the liquid storage chamber, the liquid storage chamber has a recess that separates from the side wall of the liquid injection container. preferable.

  When injecting liquid from the liquid injection container into the liquid injection part, the liquid injection container does not contact the wall of the atmosphere chamber, so the attitude of the liquid injection container is stable and the liquid is stably injected into the liquid storage chamber. be able to. For example, it is difficult to stably inject the liquid into the liquid storage chamber, and it is possible to prevent a problem that the liquid leaks from the liquid injection portion.

  Application Example 9 In the liquid container according to the application example described above, the liquid storage chamber is located at a position between a fifth wall facing the second wall, and the first wall and the bottom wall. A sixth wall that connects the second wall and the fifth wall; and an inner space that is provided on the sixth wall and is closer to the first wall than the sixth wall of the liquid storage chamber. An opening that communicates with the internal space closer to the bottom wall than the sixth wall, and the opening of the liquid injection part is projected when the sixth wall is projected onto a horizontal plane in a use posture. It is preferable that the inner end is provided in a second region that forms a diagonal with the first region.

  The sixth wall forms an internal space on the first wall side and an internal space on the opposite side to the first wall. When the liquid injected from the liquid injection part is accommodated in the internal space on the side opposite to the first wall, the liquid container falls and the liquid injection part is arranged at a low position (position close to the bottom surface). Since the opening arranged at the diagonal of the liquid injection part is arranged at a high position (a position away from the bottom surface), the liquid accommodated in the internal space on the side opposite to the first wall passes through the opening. It becomes difficult to move to the internal space on the first wall side. Therefore, it is possible to prevent the liquid from moving to the internal space on the first wall side and leaking out from the liquid injection portion. That is, even when the liquid container falls and the liquid injection part is arranged at a low position, the liquid is less likely to leak out from the liquid injection part.

  Application Example 10 A liquid ejecting apparatus according to this application example is a liquid ejecting apparatus including a liquid ejecting head and a liquid container capable of storing a liquid to be supplied to the liquid ejecting head. A liquid storage chamber capable of storing a liquid; and a liquid injection portion capable of injecting the liquid into the liquid storage chamber, wherein the liquid injection portion is formed on a first wall that defines the liquid storage chamber, In addition, when the first wall is projected onto a horizontal plane in a use posture, the first wall has a first side and an outer end that is open to the outside and an inner end that is open to the liquid storage chamber. And a second side intersecting with the first side, the quadrangle being a first center line passing through the center of the first side and a second center line passing through the center of the second side Are divided into four regions, and the liquid injection portion has the inner end at the four regions. The first wall is provided with a liquid leakage prevention wall that protrudes to a position spaced from the liquid injection part and surrounds the liquid injection part. To do.

When the liquid container falls down due to a malfunction in injecting the liquid into the liquid container or due to a malfunction in moving the liquid ejecting apparatus, the liquid injecting portion is arranged at a high position with respect to the bottom surface. It becomes difficult to leak from the liquid injection part to the outside. Even if the liquid leaks to the outside of the liquid container, the leaked liquid is dammed by the liquid leakage prevention wall, so that it is difficult for the liquid to flow out to the outside of the liquid leakage prevention wall.
Therefore, the loss of the liquid leaking outside from the liquid injection part and the waste of the liquid and the adverse effect of the liquid leaking outside from the liquid injection part (for example, a failure due to dirt) are suppressed, and the liquid is wasted. A liquid ejecting apparatus that operates stably while being suppressed can be realized.

FIG. 2 is a schematic diagram illustrating an overview of a printer according to the first embodiment. FIG. 2 is a schematic diagram illustrating an overview of a printer according to the first embodiment. FIG. 2 is a schematic diagram illustrating an overview of a printer according to the first embodiment. Schematic which shows the state of a tank unit. Schematic which shows the state which injects ink into a tank unit. The disassembled perspective view of the liquid container at the time of seeing a visual recognition wall from a high side. The disassembled perspective view of a liquid container at the time of seeing the wall facing a visual recognition wall from a low side. FIG. 4 is a schematic diagram showing a state where ink is injected from a liquid injection container into a liquid storage chamber. The schematic plan view of a 1st wall when a 1st wall is projected on a horizontal surface with a use attitude | position. The schematic diagram of a liquid container at the time of seeing in the direction which goes to a 3rd wall from a 4th wall in a use attitude | position. The schematic diagram of a liquid container at the time of seeing in the direction which goes to a 2nd wall from a 7th wall in a use attitude | position. FIG. 11 is a schematic view of a liquid container when it falls from the state shown in FIG. 10 in a clockwise direction. FIG. 12 is a schematic view of a liquid container when it falls from the state shown in FIG. 11 in a counterclockwise direction. Schematic which shows the preferable arrangement position of a liquid injection | pouring part. FIG. 6 is an exploded perspective view of a liquid container of a printer according to a second embodiment. Schematic which shows the state of a 1st wall and a 6th wall when a 1st wall and a 6th wall are projected on a horizontal surface by a use attitude | position. The schematic diagram of a liquid container at the time of seeing in the direction which goes to a 3rd wall from a 4th wall in a use attitude | position. The schematic diagram of a liquid container at the time of seeing in the direction which goes to a 2nd wall from a 7th wall in a use attitude | position. FIG. 18 is a schematic view of a liquid container when it falls from the state shown in FIG. 17 in a counterclockwise direction. FIG. 19 is a schematic view of a liquid container when it falls from the state shown in FIG. 18 in a clockwise direction. The disassembled perspective view of the liquid container which concerns on the modification 1 at the time of seeing a visual recognition wall from the high side. The disassembled perspective view of the liquid container which concerns on the modification 1 at the time of seeing the wall facing a visual recognition wall from the low side. The disassembled perspective view of the liquid container which concerns on the modification 2 at the time of seeing a visual recognition wall from the high side.

  Embodiments of the present invention will be described below with reference to the drawings. Such an embodiment shows one aspect of the present invention and does not limit the present invention, and can be arbitrarily changed within the scope of the technical idea of the present invention. In each of the following drawings, the scale of each layer or each part is made different from the actual scale so that each layer or each part can be recognized on the drawing.

(Embodiment 1)
"Printer Overview"
1 to 3 are schematic diagrams illustrating an overview of the printer according to the first embodiment. 1 shows a state where the document cover 31 is closed, and FIG. 2 shows a state where the document cover 31 is opened. FIG. 3 is illustrated so that the scanner unit 5 is opened and the state of the printing unit 3 can be seen.
FIG. 4 is a schematic diagram showing a state of the tank unit, and FIG. 5 is a schematic diagram showing a state in which ink is injected into the tank unit. 4 and 5, the tank unit 4 is illustrated with the cover 47 removed in order to facilitate understanding of the internal state.

As shown in FIG. 1, the printer 1 according to the present embodiment includes a printing unit 3 that is an example of a liquid ejecting apparatus, a tank unit 4 that is provided on the side of the printing unit 3, and a scanner unit 5. Yes. The printing unit 3 has a housing 6, and a mechanism unit 41 (see FIG. 3) of the printing unit 3 is accommodated in the housing 6. The tank unit 4 has a housing 7 and a plurality of liquid containers 10 (four in this embodiment). The liquid container 10 is accommodated in the housing 7.
The printer 1 can perform printing on a printing medium P such as printing paper with ink 17 (see FIG. 10) which is an example of “liquid”. As the printer 1, a configuration in which the scanner unit 5 is omitted can be adopted.

The printer 1 has a substantially rectangular parallelepiped shape. Henceforth, let the longitudinal direction of the printer 1 be an X direction, and let the transversal direction of the printer 1 be a Y direction. It is orthogonal to the X direction and the Y direction, and the thickness direction of the printer 1 is the Z direction. In the drawing, the tip side of the arrow indicating the direction is the (+) direction, and the base end side of the arrow indicating the direction is the (−) direction.
In the present application, “high” means being located on the Z (+) direction side. “Low” in the present application means being located on the Z (−) direction side. Hereinafter, the position on the Z (+) direction side is referred to as high, and the position on the Z (−) direction side is referred to as low.

  The printer 1 is used in a state where the XY plane coincides with the horizontal plane, and the printing unit 3 and the scanner unit 5 are sequentially arranged in the Z (+) direction, and this state (the state shown in FIG. 1) is the usage posture of the printer 1. It is. In other words, the posture of the printer 1 when the XY plane coincides with the horizontal plane is the usage posture of the printer 1, and the thickness direction (Z direction) is the weight direction. Further, the posture of each component or unit in the use posture of the printer 1 is the use posture of each component or unit.

The “use posture” in the present application is the posture of the liquid container 10 in the use posture of the printer 1 (use posture of the liquid container 10). Furthermore, the XY plane is an example of a “horizontal plane”, and the X direction is an example of “a direction perpendicular to the viewing wall in the use posture”.
Hereinafter, the usage posture of the liquid container 10 is simply referred to as a usage posture. Further, the description of the printer 1 and the description of the components and units constituting the printer 1 will be made in the respective usage postures.

  The printing unit 3 is provided with a paper discharge unit 21 from which the print medium P is discharged. In the printing unit 3, the surface on which the paper discharge unit 21 is provided is the front surface 22. The front surface 22 of the printing unit 3 and the front surface 22 of the scanner unit 5 are located in the same plane. That is, the front surface 22 of the printer 1 includes the front surface 22 of the printing unit 3 and the front surface 22 of the scanner unit 5.

  In the printer 1, the surface of the scanner unit 5 on the Z (+) direction side is the upper surface 23. The tank unit 4 is provided on a side portion that is located on the X (+) direction side among the side portions that intersect the front surface 22 and the upper surface 23. A cover 47 that can be opened and closed is attached to the side of the tank unit 4 on the X (+) direction side. A window portion 25 is provided in the casing 7 of the tank unit 4. The window portion 25 is provided on a side surface 28 that intersects the front surface 26 and the upper surface 27 of the housing 7.

  The front face 26 of the tank unit 4 faces the same direction as the front face 22 of the printer 1 and is located in the same plane as the front face 22 of the printer 1. Thereby, in the external appearance of the printer 1, the unevenness | corrugation between the printing unit 3 and the tank unit 4 can be reduced, Therefore When it transfers the printer 1, it can make it hard to collide with the surrounding environment.

In the tank unit 4, the window portion 25 is light transmissive. The four liquid containers 10 described above are provided so as to overlap the window portion 25, respectively. The liquid container 10 is provided with a liquid storage chamber 29 for storing the ink 17. The window portion 25 is provided at a position overlapping the liquid storage chamber 29 in the liquid container 10. For this reason, the operator who uses the printer 1 can visually recognize the state of the liquid storage chamber 29 of the liquid container 10 through the window portion 25.
In the present embodiment, the window portion 25 is provided as an opening formed in the housing 7. The operator can visually recognize the state of the liquid container 10 through the window 25 that is an opening. In addition, the window part 25 is not limited to opening, For example, you may be comprised with the member which has a light transmittance.

  At least a part of the wall of the liquid storage chamber 29 facing the window portion 25 is light transmissive. The operator can check the state of the ink 17 in the liquid storage chamber 29 (the amount of ink 17) from the light-transmitting portion of the liquid storage chamber 29 (viewing wall 46 (see FIG. 4)) through the window 25. Can be visually recognized.

  As shown in FIG. 2, the scanner unit 5 is of a flat bed type, and includes a document cover 31 that rotates to be opened and closed, and a document placement surface 32 that is exposed when the document cover 31 is opened. Yes. The scanner unit 5 has an image sensor (not shown) such as an image sensor. The scanner unit 5 can read an image drawn on a document such as a sheet placed on the document placement surface 32 as image data via an image sensor. For this reason, the scanner unit 5 functions as an image reading device.

  As shown in FIG. 3, the scanner unit 5 is configured to be rotatable with respect to the printing unit 3. The scanner unit 5 also has a function as a lid of the printing unit 3. The operator can rotate the scanner unit 5 with respect to the printing unit 3 by lifting the scanner unit 5 in the Z (+) direction. Accordingly, the scanner unit 5 that functions as a lid of the printing unit 3 can be opened with respect to the printing unit 3.

  The printing unit 3 has a mechanism unit 41. The mechanism unit 41 is provided with a printing unit 42. The mechanism unit 41 is housed in the housing 6 and is protected by the housing 6. The printing unit 42 prints images, characters, and the like on the print medium P by ejecting the ink 17 onto the print medium P that is transported in the Y (+) direction by a transport device (not shown). The conveyance device intermittently conveys the print medium P in the Y (+) direction. The printing unit 42 is configured to be able to reciprocate along the X direction by a moving device (not shown). The tank unit 4 supplies the ink 17 to the printing unit 42.

As described above, the tank unit 4 has a plurality of liquid containers 10 (four in this embodiment). The liquid container 10 is located outside the casing 6 of the printing unit 3, is accommodated inside the casing 7 of the tank unit 4, and is protected by the casing 7. The housing 7 is fixed to the housing 6 with screws. That is, the tank unit 4 is fixed to the printing unit 3 with screws.
In addition, the number of the liquid containers 10 is not limited to four, for example, it may be less than four and may be more than four.

  An ink supply tube 43 is connected to each of the plurality of liquid containers 10. The ink 17 in the liquid container 10 is supplied from the tank unit 4 to the printing unit 42 via the ink supply tube 43. The printing unit 42 is provided with a liquid ejecting head 40. The liquid ejecting head 40 has a nozzle opening (not shown) directed to the print medium P side. The liquid ejecting head 40 is a so-called ink jet printing head. The ink 17 supplied from the tank unit 4 to the printing unit 42 via the ink supply tube 43 is supplied to the liquid ejecting head 40. Then, the ink 17 supplied to the printing unit 42 is ejected from the nozzle opening of the liquid ejecting head 40 onto the print medium P, and an image or a character is printed on the print medium P.

In the present embodiment, the printing unit 3 and the tank unit 4 are exemplified as separate structures, and the housing 7 and the housing 6 are separate from each other. A configuration in which the housing 7 and the housing 6 are integrated may be employed. That is, the tank unit 4 can be included in the configuration of the printing unit 3. In this case, the plurality of liquid containers 10 are accommodated in the same casing together with the printing unit 42 and the ink supply tube 43.
Further, the arrangement location of the liquid container 10 is not limited to the side portion side of the housing 6 in the X (+) direction, and may be, for example, the front surface side of the housing 6 in the Y (+) direction.

  As the ink 17, water-based ink, oil-based ink, or the like can be used. The water-based ink may be either an ink having a structure in which a solute such as a dye is dissolved in an aqueous solvent or an ink having a structure in which a dispersoid such as a pigment is dispersed in an aqueous dispersion medium. The oil-based ink may be either one having a configuration in which a solute such as a dye is dissolved in an oil-based solvent, or one having a configuration in which a dispersoid such as a pigment is dispersed in an oil-based dispersion medium.

As shown in FIG. 4, the liquid container 10 can store the ink 17 to be supplied to the liquid ejecting head 40, one liquid storage chamber 29 that can store the ink 17, and the ink 17 is injected into the liquid storage chamber 29. It has one possible liquid injection part 35 and a viewing wall 46 that faces the window part 25 and is arranged on the X (+) direction side.
In the liquid container 10, since there is one liquid injection part 35 and one liquid storage chamber 29, the ink 17 included in the liquid container 10 is also one type and does not coexist with other types of color inks 17. .

The liquid injection part 35 is provided on the first wall 61 (see FIG. 6), and has a cylindrical part 37, an outer end 36 opened to the outside (one end of the cylindrical part 37), and the liquid storage chamber 29. It has an open inner end 38 (the other end of the cylindrical portion 37). In the present embodiment, the inner end 38 is a portion of the liquid injection portion 35 that is in contact with the first inclined portion 61 </ b> A of the first wall 61, and more specifically, the first end that faces the liquid storage chamber 29. This is an inner end portion of the wall 61 (first inclined portion 61A).
The outer end 36 has an opening 36A, the inner end 38 has an opening 38A, and the cylindrical portion 37 has a through hole 37A communicating with the opening 36A and the opening 38A. In other words, the liquid injection part 35 includes a cylindrical part 37 having a through hole 37A communicating with the opening 36A of the outer end 36 and the opening 38A of the inner end 38. The operator can inject the ink 17 into the liquid storage chamber 29 from the liquid injection unit 35.
Further, the opening 36A at the outer end 36 of the liquid injection portion 35 protrudes from the first wall 61 in the Z (+) direction by the cylindrical portion 37 and is disposed higher than the first wall 61. Compared to the case where the opening 36 </ b> A of the outer end 36 of the portion 35 is disposed lower than the first wall 61, the ink 17 is transferred from the opening 36 </ b> A of the outer end 36 of the liquid injection portion 35 to the outside of the liquid injection portion 35. It becomes difficult to leak.

The viewing wall 46 is made of a light transmissive member. An upper limit mark 48 and a lower limit mark 49 are provided on the viewing wall 46. The upper limit mark 48 is an example of an “upper limit line”, and is an indicator that indicates an approximate upper limit of the amount of ink 17 that can be injected into the liquid storage chamber 29. The lower limit mark 49 is a mark for prompting the liquid 17 to be injected into the liquid storage chamber 29.
The operator can correctly grasp the state of the ink 17 in the liquid storage chamber 29 by using the upper limit mark 48 and the lower limit mark 49 and can replenish the liquid storage chamber 29 with the ink 17 appropriately. Specifically, when the liquid level 17A (see FIG. 10) of the ink 17 approaches the lower limit mark 49, the operator applies new ink 17 so as not to exceed the upper limit mark 48 that is a guideline for the upper limit of the amount of ink 17. The liquid storage chamber 29 is replenished.

  In addition to the upper limit mark 48 and the lower limit mark 49, other signs indicating information regarding the ink 17 may be provided on the viewing wall 46. For example, a mark such as a scale indicating the amount of the ink 17 or a symbol indicating the color of the ink 17 may be provided on the visual recognition wall 46.

When the viewing wall 46 is viewed from a direction (X direction) orthogonal to the viewing wall 46 in the use posture, the center line V1 passing through the center of the liquid injection part 35 passes through the centers of the upper limit mark 48 and the lower limit mark 49. It is arranged at a position different from the center line V2.
When the center line V2 of the upper limit mark 48 is arranged at a position different from the center line V1 of the liquid injection part 35, the upper limit mark 48 is arranged at a position away from the liquid injection part 35, and when the ink 17 is injected from the liquid injection part 35. Since the upper limit mark 48 is easily visible, the ink 17 is not injected beyond the upper limit mark 48. For example, the problem that the ink 17 overflows from the liquid injection portion 35 and leaks to the outside can be prevented. .
Further, when the ink 17 overflows from the liquid injection part 35 in the replenishment operation of the ink 17, the overflowed ink 17 hangs down in the Z (−) direction. If the upper limit mark 48 and the lower limit mark 49 are arranged at different positions in the V1 and Y directions, the upper limit mark 48 and the lower limit mark 49 are not easily stained by the leaked ink 17.

A connecting portion 56 is provided on the side wall portion 7 </ b> A of the housing 7, and a cap 53 is attached to the connecting portion 56. The cap 53 is rotatable with the connecting portion 56 as a fulcrum. Further, a tray 54 is attached to the side wall portion 7A.
When the predetermined ink 17 is stored in the liquid storage chamber 29 of the liquid container 10, the cap 53 seals the opening 36 </ b> A at the outer end 36 of the liquid injection portion 35 as indicated by a two-dot chain line in the drawing. Thus, the evaporation of the ink 17 stored in the liquid storage chamber 29 is suppressed. When the ink 17 is injected from the liquid injection portion 35, the cap 53 is moved and placed on the tray 54 as shown by the solid line in the figure.

  In FIG. 4, one cap 53 is illustrated, but the cap 53 is attached so as to correspond to each of the four liquid containers 10. That is, in the present embodiment, the number of caps 53 is four, and the caps 53 seal each of the openings 36 </ b> A of the outer ends 36 of the liquid injection portions 35 of the four liquid containers 10.

As shown in FIG. 5, in the printer 1, the ink 17 is injected (supplemented) into the liquid container 10 by the liquid injection container 58. The liquid injection container 58 is provided with a nozzle portion 59 that can discharge the ink 17. The nozzle part 59 has a tubular structure. The ink 17 in the liquid injection container 58 is discharged out of the liquid injection container 58 through the nozzle portion 59.
The operator inserts the nozzle part 59 of the liquid injection container 58 into the opening 36 </ b> A of the outer end 36 of the liquid injection part 35 with the cap 53 removed from the liquid injection part 35, and accommodates it in the liquid injection container 58. The filled ink 17 is injected (supplemented) into the liquid container 10.

"Overview of liquid containers"
FIG. 6 is an exploded perspective view of the liquid container when the viewing wall is viewed from the high side. FIG. 7 is an exploded perspective view of the liquid container when the wall facing the viewing wall is viewed from the lower side. FIG. 7 is also an exploded perspective view of the liquid container 10 when viewed from the opposite direction to FIG. FIG. 8 is a diagram corresponding to FIG. 6 and is a schematic diagram showing a state in which ink is injected from the liquid injection container into the liquid storage chamber.

As shown in FIGS. 6 and 7, the liquid container 10 includes a first member 11, a second member 12, a third member 13, and a fourth member 14.
The first member 11 constitutes the main body of the liquid container 10, and is a member formed by molding, for example, a thermoplastic resin. An air introduction portion 92 and a cylindrical wall 91 surrounding the air introduction portion 92 are provided on the upper wall of the first member 11 on the Z (+) direction side (see FIG. 6).

  The 2nd member 12 is a resin film, for example, and is joined to the wall of the 1st member 11 by the side of the Y (-) direction, for example by welding (refer to Drawing 6).

  The 3rd member 13 and the 4th member 14 are joined to the wall of the Y (+) direction side of the 1st member 11 by welding, for example (refer to Drawing 7). The third member 13 is disposed between the first member 11 and the fourth member 14 and seals the concave portion 71 of the first member 11 communicated with the air introduction portion 92. The third member 13 is a resin film made of a material having low liquid permeability and high air permeability, and has waterproofness and air permeability. The fourth member 14 is, for example, a resin film.

On the wall on the Y (+) direction side of the first member 11, a concave portion 71 communicated with the air introduction portion 92, a concave portion 72 disposed so as to surround the concave portion 71, and the Z (−) direction side of the concave portion 72. And a recess 73 disposed on the surface (see FIG. 7).
The wall on the Y (−) direction side of the first member 11 is directed from the wall on the Z (−) direction side of the first member 11 toward the wall on the Z (+) direction side of the first member 11 (Z (+ ) Along the direction)), a recess 74 and a recess 75, a recess 76, a recess 77, a recess 78, and a recess 79 are provided (see FIG. 6).

The recess 71 of the first member 11 is sealed with the third member 13 to form a space 71A. The recesses 72 and 73 of the first member 11 are sealed by the fourth member 14 to form spaces 72A and 73A (see FIG. 7).
The recesses 74, 75, 76, 77, 78, 79 of the first member are sealed with the second member 12, and spaces 74A, 75A, 76A, 77A, 78A, 79A are formed (see FIG. 6).

  The space 71A, the space 72A, the space 73A, the space 74A, the space 75A, the space 76A, the space 77A, the space 78A, and the space 79A are respectively communicated to form a single long air flow path. The air flow path formed by the space 71A, the space 72A, the space 73A, the space 74A, the space 75A, the space 76A, the space 77A, the space 78A, and the space 79A is an example of an “atmosphere chamber”. 80.

  The space 71A, the space 72A, the space 73A, the space 74A, the space 75A, the space 76A, the space 77A, the space 78A, and the space 79A may be communicated in this order. For example, the space 71A, the space 79A, the space 72A, space 78A, space 73A, space 77A, space 76A, space 74A, and space 75A may be communicated in this order. That is, the order of communicating the space 71A, the space 72A, the space 73A, the space 74A, the space 75A, the space 76A, the space 77A, the space 78A, and the space 79A is arbitrary.

One of the atmospheric chambers 80 is communicated with the atmospheric introduction part 92, and the other of the atmospheric chambers 80 is communicated with the liquid storage chamber 29 via the communication hole 217 (see FIG. 7). That is, the atmosphere is introduced into the liquid storage chamber 29 via the atmosphere introduction portion 92, the atmosphere chamber 80, and the communication hole 217.
The communication hole 217 that communicates the atmosphere chamber 80 and the liquid storage chamber 29 is provided closer to the fifth wall 67 than the liquid injection portion 35.

  The atmospheric chamber 80 has a role of suppressing evaporation of the ink 17 stored in the liquid storage chamber 29 and suppressing leakage of the ink 17 from the liquid storage chamber 29. Accordingly, it is preferable that the length of the atmospheric flow path in the atmospheric chamber 80 is longer. For this reason, the space 71A, the space 72A, the space 73A, the space 74A, the space 75A, the space 76A, the space 77A, the space 78A, and the space 79A are communicated so that the length of the atmospheric flow path in the atmosphere chamber 80 is increased. It is preferable. Further, the third member 13 provided in the atmospheric chamber 80 prevents the ink 17 stored in the liquid storage chamber 29 from leaking from the atmospheric introduction portion 92.

A liquid storage chamber 29 is provided on the Z (−) direction side of the liquid container 10. Further, the above-described atmospheric chamber 80 is provided on the Z (+) direction side of the liquid container 10. That is, the liquid container 10 includes an air chamber 80 above the liquid storage chamber 29.
The atmospheric chamber 80 has a wall 81 located above the liquid injection part 35 (liquid storage chamber 29). The wall 81 constitutes a part of the wall on the X (+) direction side of the first member 11 and has a recess 82 that is recessed in the X (−) direction. The concave portion 82 is an example of the “concave portion” in the present application.
A tube holding portion 85 that holds the ink supply tube 43 is provided on the X (−) direction side wall of the first member 11 (see FIG. 6). An ink supply unit 87 is provided on the wall (fifth wall 67) on the Z (−) direction side of the first member 11 (see FIG. 7). The ink supply unit 87 is communicated with the printing unit 42 by the ink supply tube 43.

As shown in FIG. 8, when the ink 17 is injected into the liquid injection part 35 from the liquid injection container 58 for injecting the ink 17 into the liquid storage chamber 29, the above-described recess 82 is formed in the liquid injection container 58. It is provided so as to be separated from the side wall 57.
When injecting the ink 17 from the liquid injection container 58 to the liquid injection part 35, the liquid injection container 58 does not contact the wall 81 of the atmospheric chamber 80, so that the posture of the liquid injection container 58 is stabilized and the ink 17 is stabilized. Then, the liquid can be injected into the liquid storage chamber 29. For example, the posture of the liquid injection container 58 is not stable, it becomes difficult to stably inject the ink 17 into the liquid storage chamber 29, and the problem that the ink 17 leaks outside from the liquid injection portion 35 can be prevented. it can.

6 and 7, the liquid storage chamber 29 is shown by a thick solid line or a thick broken line. Further, in FIGS. 6 and 7, in order to make the shapes and positions of the walls 61, 62, 63, 64, 65, 67 and the bottom wall 60 constituting the liquid storage chamber 29 easier to understand, the walls 61, 62, 63, Reference numerals A, B, C, D, E, G, H, and K are attached to portions (vertices) where 64, 65, 67 and sides constituting the contour of the bottom wall 60 intersect. Hereinafter, the vertices of the walls 61, 62, 63, 64, 65, 67 and the bottom wall 60 are referred to as points A, B, C, D, E, G, H, K.
Next, an outline of the liquid storage chamber 29 will be described with reference to FIGS. 6 and 7.

The liquid storage chamber 29 includes a first wall 61, a second wall 62, a third wall 63, a fourth wall 64, a reinforcing wall 65, a fifth wall 67, and a bottom wall 60. (See FIG. 6).
The first wall 61 defines the liquid storage chamber 29 and is disposed on the Z (+) direction side of the liquid storage chamber 29. The second wall 62 is disposed on the X (+) direction side of the liquid storage chamber 29. The third wall 63 is disposed on the Y (+) direction side of the liquid storage chamber 29. The fourth wall 64 is disposed on the Y (−) direction side of the liquid storage chamber 29. The fifth wall 67 is disposed on the X (−) direction side of the liquid storage chamber 29. The bottom wall 60 is disposed on the Z (−) direction side of the liquid storage chamber 29.
In the use posture, the bottom wall 60 becomes the bottom surface (lowest surface) of the liquid storage chamber 29.

  The first wall 61, the second wall 62, the third wall 63, the fifth wall 67, and the bottom wall 60 constitute a part of the first member 11, and the first member 11 It is a component. The fourth wall 64 is a portion where the broken line hatching of the second member 12 is given in the drawing, and is a component of the second member 12. Further, the ink 17 is placed in a space surrounded by the first wall 61, the second wall 62, the third wall 63, the fourth wall 64, the fifth wall 67, and the bottom wall 60. Is housed.

Specifically, the portion surrounded by the points E1, G1, H1, and K1 is the first wall 61. The first wall 61 is disposed on the outer side (X (+) direction side) with respect to the wall 81 and on the inner side (X (−) direction side) with respect to the wall 81. And a flat portion 61B. The first inclined portion 61A is a portion surrounded by the point E1, the point F1, the point J1, and the point K1, and is disposed on the second wall 62 side. The flat portion 61B is a portion surrounded by the point F1, the point G1, the point H1, and the point J1, and is disposed on the fifth wall 67 side.
In the present embodiment, the first wall 61 includes the first inclined portion 61A described above. However, the first wall 61 does not necessarily have an inclined shape (there is no height difference in the Z-axis direction). The whole shape may be flat. In the present embodiment, the first wall 61 includes the first inclined portion 61A and the flat portion 61B. However, the first wall 61 does not include the flat portion 61B, and the entire first wall 61 is in the Z-axis direction. The shape of only the inclined part forming the height difference may be used.

The points E1, K1 of the first inclined portion 61A are lower than the points F1, J1 of the first inclined portion 61A, and the first inclined portion 61A is lower on the second wall 62 side. That is, the first inclined portion 61A is inclined so that the second wall 62 side is lowered. Further, the first inclined portion 61A is provided with a liquid injection portion 35 protruding in the Z (+) direction. The liquid injection part 35 is provided on the second wall 62 side of the first inclined part 61A.
Thus, the liquid storage chamber 29 has the second wall 62 extending in a direction intersecting the first wall 61, and the first wall 61 is inclined so that the second wall 62 side is lowered. The liquid injection part 35 is provided on the second wall 62 side of the first wall 61 (the first inclined part 61A).

Furthermore, a liquid leakage prevention wall 34 surrounding the liquid injection part 35 is provided in the first inclined part 61A. That is, the first wall 61 (first inclined portion 61 </ b> A) is provided with a liquid leakage prevention wall 34 that protrudes to a position separated from the liquid injection portion 35 and prevents the ink 17 from leaking from the liquid injection portion 35. .
For example, if the operator does not properly inject the ink 17 from the liquid injection container 58 into the liquid injection part 35 and the ink 17 leaks outside from the liquid injection part 35, the leaked ink 17 will be the liquid leakage prevention wall. Therefore, the leaked ink 17 can be prevented from flowing out to the outside of the liquid leakage prevention wall 34.
The liquid leakage prevention wall 34 may be provided outside the liquid injection part 35. Further, the liquid leakage prevention wall 34 is lower in height from the first wall 61 than the liquid injection part 35, or is equal in height from the first wall 61, or from the first wall 61. The height may be high. Furthermore, the shape of the liquid leakage prevention wall 34 is a square shape, but may be a donut shape or other shapes, for example.

A portion surrounded by the point A1, the point E1, the point K1, and the point D1 is the second wall 62. The second wall 62 extends in a direction intersecting the first wall 61, the third wall 63, the fourth wall 64, and the bottom wall 60. The 2nd wall 62 is the visual recognition wall 46 which can visually recognize the liquid level in the liquid storage chamber 29 from the exterior, and is comprised with the member which has a light transmittance.
That is, the second wall 62 is provided with an upper limit mark 48 indicating an upper limit of the amount of the ink 17 that can be injected into the liquid storage chamber 29, and the visual confirmation that the liquid level 17A in the liquid storage chamber 29 is visible from the outside. A wall 46 is formed.

  A portion surrounded by the point D1, the point C1, the point H1, and the point K1 is the third wall 63. The third wall 63 extends in a direction intersecting the first wall 61, the second wall 62, the fifth wall 67, and the bottom wall 60 (see FIG. 6). Moreover, the part hatched with the oblique line of the broken line of the 1st member 11 is the 3rd wall 63 (refer FIG. 7).

  A portion surrounded by the points A 1, B 1, G 1, and E 1, that is, a portion where the broken line hatching of the second member 12 is performed is the fourth wall 64. The fourth wall 64 faces the third wall 63 and extends in a direction intersecting the first wall 61, the second wall 62, and the bottom wall 60 (see FIG. 6).

  A portion surrounded by the point B 1, the point G 1, the point H 1, and the point C 1 is the fifth wall 67. The fifth wall 67 faces the second wall 62 and extends in a direction intersecting the first wall 61, the third wall 63, the fourth wall 64, and the bottom wall 60 (FIG. 6). reference). The fifth wall 67 has an opening 67 </ b> A on the Z (−) direction side of the portion intersecting with the fourth wall 64.

  In the use posture, the opening 67 </ b> A is provided at the lowest position of the liquid storage chamber 29. The opening 67A communicates with the ink supply unit 87. That is, the ink 17 stored in the liquid storage chamber 29 is supplied to the printing unit 42 via the opening 67A, the ink supply unit 87, and the ink supply tube 43.

  A portion surrounded by the point L1, the point M1, the point N1, and the point O1 is the reinforcing wall 65. The reinforcing wall 65 faces the second wall 62 and is disposed between the second wall 62 and the fifth wall 67. The reinforcing wall 65 does not contact the second wall 62, the fifth wall 67, and the bottom wall 60, and has a gap between the second wall 62, the fifth wall 67, and the bottom wall 60. Yes. One end of the reinforcing wall 65 is in contact with the third wall 63, and the other end of the reinforcing wall 65 is in contact with the fourth wall 64.

In the first member 11, the reinforcing wall 65 is a wall extending in Y (−) with the third wall 63 as a base point, and a gap is formed between the second wall 62, the fifth wall 67, and the bottom wall 60. Have. When the second member 12 is joined to the first member 11, the other end of the reinforcing wall 65 is disposed so as to contact the fourth wall 64 (second member 12), and the fourth wall 64 (second The member 12) is supported.
In addition, the structure by which the reinforcement wall 65 was abbreviate | omitted may be sufficient.

A portion surrounded by the points A1, B1, C1, and D1 is the bottom wall 60. The bottom wall 60 faces the first wall 61 and extends in a direction intersecting the second wall 62, the third wall 63, the fourth wall 64, and the fifth wall 67 (see FIG. 6). ).
In the bottom wall 60, the point A1, the point C1, and the point D1 are higher than the point B1.

Since the point A1 and the point D1 are disposed on the second wall 62 side and the point B1 is disposed on the fifth wall 67 side, the bottom wall 60 is higher on the second wall 62 side. For this reason, the bottom wall 60 is inclined so that the second wall 62 side becomes higher and the fifth wall 67 side becomes lower. That is, the bottom wall 60 has a second inclined portion that inclines so that the second wall 62 side becomes higher.
In other words, the liquid storage chamber 29 extends in a direction intersecting the first wall 61, extends in the direction intersecting the second wall 62, and faces the first wall 61. The bottom wall 60 has a second inclined portion that inclines so that the second wall 62 side becomes higher.

Since the point C1 and the point D1 are arranged on the third wall 63 side, and the point B1 is arranged on the fourth wall 64 side, the bottom wall 60 becomes higher on the third wall 63 side, Lower on the wall 64 side. That is, the bottom wall 60 has a third inclined portion that is inclined from the third wall 63 toward the fourth wall 64 so that the fourth wall 64 side is lowered.
In other words, the liquid storage chamber 29 includes a third wall 63 that extends in a direction intersecting the first wall 61, the second wall 62, and the bottom wall 60, and a fourth wall that faces the third wall 63. The bottom wall 60 has a third inclined portion that is inclined from the third wall 63 toward the fourth wall 64 so that the fourth wall 64 side is lowered.

The opening 67 </ b> A is an outlet of the ink 17 in the liquid storage chamber 29 that supplies the ink 17 to the ink supply unit 87, and is provided at the lowest position of the liquid storage chamber 29. For this reason, the bottom wall 60 is inclined so as to become lower when approaching the opening 67A and to become higher when moving away from the opening 67A.
If the opening 67A that is the outlet of the ink 17 is arranged at the lowest position in the liquid storage chamber 29, the ink 17 in the liquid storage chamber 29 is easily discharged from the opening 67A. For example, the ink 17 remains in the liquid storage chamber 29. It is possible to prevent waste.

FIG. 9 is a schematic plan view of the first wall when the first wall 61 is projected onto the horizontal plane (XY plane) in the use posture. FIG. 10 is a schematic view of the liquid container when viewed from the fourth wall toward the third wall in the usage posture. FIG. 11 is a schematic view of the liquid container when viewed in a direction from the seventh wall toward the second wall in the use posture. FIG. 12 is a schematic view of the liquid container when it falls from the state shown in FIG. 10 in the clockwise direction. FIG. 13 is a schematic view of the liquid container when it falls from the state shown in FIG. 11 in the counterclockwise direction.
10 and 12, the bottom wall 60 and the walls 61, 62, and 67 are shown, and the other walls 63, 64, and 65 are not shown. 11 and 13, the bottom wall 60 and the walls 61, 63, and 64 are illustrated, and the other walls 62, 65, and 67 are not illustrated. 10 to 13 show a state in which the ink 17 is injected into the liquid storage chamber 29 up to the vicinity of the upper limit mark 48.

  In the following description, the posture of the liquid container 10 when it falls in the state shown in FIG. 12 is referred to as a first fall posture. That is, the first falling posture is the posture of the liquid storage chamber 29 when the fifth wall 67 becomes the bottom surface (the lowest surface). Furthermore, the posture of the liquid container 10 when it falls in the state shown in FIG. 13 is referred to as a second falling posture. That is, the second falling posture is the posture of the liquid storage chamber 29 when the fourth wall 64 becomes the bottom surface (the lowest surface).

As shown in FIG. 9, when the first wall 61 is projected on the horizontal plane (XY plane) in the usage posture, the first wall 61 is crossed with the first side 101 and the first side 101 in detail. A quadrilateral 61 </ b> C having two sides 102, a third side 103 that faces the first side 101, and a fourth side 104 that faces the second side 102 is formed. That is, the first wall 61 forms a quadrilateral 61 </ b> C having a first side 101 and a second side 102 that intersects the first side 101.
The first side 101 is a side where the first wall 61 and the second wall 62 intersect. The second side 102 is a side where the first wall 61 and the third wall 63 intersect. The third side 103 is a side where the first wall 61 and the fifth wall 67 intersect. The fourth side 104 is a side where the first wall 61 and the fourth wall 64 intersect.

The quadrilateral 61C is partitioned into four regions by a first center line 101A passing through the center of the first side 101 and a second center line 102A passing through the center of the second side 102. Note that the first center line 101A and the second center line 102A are indicated by alternate long and short dash lines in the drawing.
That is, the quadrilateral 61C is divided by the first center line 101A and the second center line 102A, the first region 111, the second region 112, the third region 113, and the fourth region Region 114.
The first region 111 is a region surrounded by the first center line 101A, the second center line 102A, the second wall 62, and the third wall 63. The first region 111 is disposed on the first wall 61 on the side closer to the second wall 62 and the third wall 63.
The second region 112 is a region surrounded by the first center line 101 </ b> A, the second center line 102 </ b> A, the fourth wall 64, and the fifth wall 67. The second region 112 is disposed on the first wall 61 on the side closer to the fourth wall 64 and the fifth wall 67.
The third region 113 is a region surrounded by the first center line 101 </ b> A, the second center line 102 </ b> A, the second wall 62, and the fourth wall 64. The third region 113 is arranged on the first wall 61 on the side close to the second wall 62 and the fourth wall 64.
The fourth region 114 is a region surrounded by the first center line 101 </ b> A, the second center line 102 </ b> A, the third wall 63, and the fifth wall 67. The fourth region 114 is arranged on the first wall 61 on the side closer to the third wall 63 and the fifth wall 67.

  The liquid injection part 35 is provided so that the inner end 38 is disposed in any one of the four regions 111, 112, 113, 114. In the present embodiment, the liquid injection part 35 is provided so that the inner end 38 is disposed in the first region 111 among the four regions 111, 112, 113, 114. That is, the liquid injection part 35 is provided on the first wall 61 closer to the third wall 63 than the fourth wall 64, and in the first wall 61 from the fifth wall 67 to the second wall 62. It is provided on the near side.

  As shown in FIGS. 10 and 11, in the use posture, the bottom wall 60 is disposed at the lowest position, and the first wall 61 and the opening 36A of the liquid injection portion 35 are disposed at a high position. The ink 17 in 29 is unlikely to leak from the opening 36 </ b> A of the liquid injection portion 35.

  As shown in FIG. 10, the first wall 61 has the first inclined portion 61A that is inclined so that the second wall 62 side is lowered, so that the first wall 61 becomes lower when approaching the second wall 62, It gets higher when it gets closer to the fifth wall 67. Since the bottom wall 60 facing the first wall 61 has a second inclined portion that inclines so that the second wall 62 side becomes higher, the bottom wall 60 becomes higher when approaching the second wall 62, and the fifth wall As the wall 67 is approached, it becomes lower. For this reason, the distance S1 between the bottom wall 60 and the first wall 61 becomes longer in the direction from the second wall 62 toward the fifth wall 67. Accordingly, the liquid storage chamber 29 becomes wider in the direction from the second wall 62 toward the fifth wall 67.

  As shown in FIG. 11, the bottom wall 60 has a third inclined portion that is inclined in the direction from the third wall 63 to the fourth wall 64 so that the fourth wall 64 side is lowered. The height increases when approaching the wall 63 and decreases when approaching the fourth wall 64. For this reason, the distance S <b> 2 between the bottom wall 60 and the first wall 61 becomes longer in the direction from the third wall 63 toward the fourth wall 64. Accordingly, the liquid storage chamber 29 is widened in the direction from the third wall 63 toward the fourth wall 64.

  If the liquid container 10 falls due to a problem in injecting the ink 17 into the liquid container 10 or a problem in moving the printer 1, the liquid injection part 35 is assumed to be at the center (first center) of the quadrilateral 61 </ b> C. When the ink 17 is injected into the liquid storage chamber 29 near the upper limit mark 48, the liquid surface 17A of the ink 17 is liquid-injected. The ink 17 leaks from the opening 36 </ b> A of the liquid injection part 35 because the height is higher than the opening 36 </ b> A of the part 35.

  As shown in FIG. 12, in the first falling posture, the fifth wall 67 is the bottom surface (lowest surface), and the second wall 62 is the top surface (highest surface). Since the liquid injection part 35 is provided on the side close to the second wall 62, it is arranged at a high position in the same manner as the second wall 62.

Furthermore, since the liquid storage chamber 29 is widened in the direction from the second wall 62 toward the fifth wall 67, compared with the case where the liquid storage chamber 29 is widened in the direction from the fifth wall 67 toward the second wall 62. The liquid surface 17A of the ink 17 is kept low.
Accordingly, the opening 36A of the liquid injection part 35 is disposed at a high position, and the liquid level 17A of the ink 17 is suppressed to a low position, so that the ink 17 is difficult to leak from the opening 36A of the liquid injection part 35.

  As shown in FIG. 13, in the second fall posture, the fourth wall 64 becomes the bottom surface (lowest surface) and the third wall 63 becomes the top surface (highest surface). Since the liquid injection part 35 is disposed on the side close to the third wall 63, it is disposed at a high position in the same manner as the third wall 63.

Furthermore, since the liquid storage chamber 29 is widened in the direction from the third wall 63 toward the fourth wall 64, compared with the case where the liquid storage chamber 29 is widened in the direction from the fourth wall 64 toward the third wall 63. The liquid surface 17A of the ink 17 is kept low.
Accordingly, the opening 36A of the liquid injection part 35 is disposed at a high position, and the liquid level 17A of the ink 17 is suppressed to a low position, so that the ink 17 is difficult to leak from the opening 36A of the liquid injection part 35.

  Further, although not shown, the communication hole 217 that communicates the atmosphere chamber 80 and the liquid storage chamber 29 is provided closer to the fifth wall 67 than the liquid injection portion 35. When the liquid storage chamber 29 falls so that the bottom surface of the liquid storage chamber 29 falls, the ink 17 in the liquid storage chamber 29 moves to the atmospheric chamber 80 through the communication hole 217, and the ink 17 is transferred to the liquid injection unit 35. The risk of leakage from the opening 36A can be reduced.

  As described above, when the liquid injection part 35 is arranged at the center of the quadrilateral 61C, the ink 17 easily leaks from the opening 36A of the liquid injection part 35 in both the first fall posture and the second fall posture. . In the present embodiment, by providing the liquid injection portion 35 in the first region 111 of the quadrilateral 61C, the ink 17 can be discharged from the opening 36A of the liquid injection portion 35 in both the first fall posture and the second fall posture. It becomes difficult to leak.

  FIG. 14 is a diagram corresponding to FIG. 9 and is a schematic diagram illustrating a preferred arrangement position of the liquid injection unit. In FIG. 14, the arrangement position of the liquid injection part 35 in the present embodiment is indicated by a solid line, and the arrangement positions of other preferable liquid injection parts 35A, 35B, and 35C are indicated by a broken line.

  As shown in FIG. 14, the liquid injection part 35 of the present embodiment disposed in the first region 111 is disposed away from the fourth wall 64 and the fifth wall 67, and thus the fifth wall 67. In the first falling posture with the bottom surface as the bottom surface and the second falling posture with the fourth wall 64 as the bottom surface, the liquid injection portion 35 is disposed at a high position, so that the ink 17 is discharged from the liquid injection portion 35. It becomes difficult to leak.

  When the liquid injection part 35A indicated by the broken line in the drawing is arranged in the second region 112, the liquid injection part 35A is arranged away from the second wall 62 and the third wall 63. In a fall posture (referred to as a third fall posture) with the second wall 62 as a bottom surface and a fall posture (referred to as a fourth fall posture) with the third wall 63 as a bottom surface, the liquid injection part 35 is at a high position. Therefore, it is difficult for the ink 17 to leak from the liquid injection portion 35.

  When the liquid injection part 35B indicated by the broken line in the drawing is arranged in the third region 113, the liquid injection part 35B is arranged away from the third wall 63 and the fifth wall 67. In the fourth falling posture with the third wall 63 as the bottom surface and the first falling posture with the fifth wall 67 as the bottom surface, the liquid injecting portion 35 is disposed at a high position. Ink 17 is less likely to leak from 35.

  When the liquid injection part 35C indicated by the broken line in the drawing is arranged in the fourth region 114, the liquid injection part 35C is arranged away from the second wall 62 and the fourth wall 64. In the third falling posture with the second wall 62 as the bottom surface and the second falling posture with the fourth wall 64 as the bottom surface, the liquid injection portion 35 is disposed at a high position. Ink 17 is less likely to leak from 35.

As described above, when the liquid injection unit 35 is disposed in any of the first region 111 to the fourth region 114 of the quadrilateral 61C, the ink 17 is applied in any one of the first falling posture to the fourth falling posture. It becomes difficult to leak.
Therefore, it is preferable that the liquid injection part 35 is provided so that the inner end 38 is disposed in any of the four regions (the first region 111 to the fourth region 114).

As described above, the printing unit 3 includes the liquid ejecting head 40 and the liquid container 10 that can store the ink 17 to be supplied to the liquid ejecting head 40.
Further, the liquid container 10 includes a liquid storage chamber 29 that can store the ink 17, and a liquid injection portion 35 that can inject the ink 17 into the liquid storage chamber 29. The liquid injection portion 35 includes the liquid storage chamber 29. It has an outer end 36 formed on the first wall 61 that delimits and is open to the outside, and an inner end 38 that is open in the liquid storage chamber 29. The first wall 61 forms a quadrilateral 61C having a first side 101 and a second side 102 that intersects the first side 101, and the quadrangle 61C passes through the center of the first side 101. Is divided into four regions 111, 112, 113, 114 by a second center line 102A passing through the center of the second side 102, and the liquid injection portion 35 has an inner end 38 having four regions 111, 112, 113, 114 (Book The facilities embodiment is provided so as to be arranged in the first region 111).
Further, the first wall 61 includes a liquid leakage prevention wall 34 that protrudes to a position spaced from the liquid injection part 35 and surrounds the liquid injection part 35.

With such a configuration, in the printing unit 3, when the liquid container 10 falls due to a problem in injecting the ink 17 into the liquid container 10 or a problem in moving the printer 1, the ink 17 is discharged from the liquid injection unit 35. It is hard to leak. Further, even if the ink 17 leaks from the liquid injection part 35, the leaked ink 17 is blocked by the liquid leakage prevention wall 34, so that the ink 17 may flow out of the liquid leakage prevention wall 34. Is prevented.
Therefore, the loss that the ink 17 leaks to the outside from the liquid injection part 35 and the ink 17 is wasted, and the adverse effect (for example, a failure due to dirt) of the ink 17 leaking to the outside from the liquid injection part 35 is suppressed. The printing unit 3 that operates stably while suppressing waste of the ink 17 can be realized.

(Embodiment 2)
FIG. 15 is a diagram corresponding to FIG. 6 and an exploded perspective view of the liquid container of the printer according to the second embodiment. FIG. 16 is a view corresponding to FIG. 9 and shows the state of the first wall and the sixth wall when the first wall and the sixth wall are projected onto the horizontal plane (XY plane) in the use posture. FIG. FIG. 17 is a diagram corresponding to FIG. 10, and is a schematic view of the liquid container when viewed in the direction from the fourth wall toward the third wall in the usage posture. FIG. 18 is a diagram corresponding to FIG. 11, and is a schematic view of the liquid container when viewed in a direction from the seventh wall toward the second wall in the usage posture. FIG. 19 is a schematic view of the liquid container when it falls in the counterclockwise direction from the state shown in FIG. FIG. 20 is a schematic view of the liquid container when it falls from the state shown in FIG. 18 in the clockwise direction.
17 to 20 show a state in which the ink 17 is injected into the liquid storage chamber 29 up to the vicinity of the upper limit mark 48.

  The posture of the liquid container 10A when it falls in the state shown in FIG. 19 is referred to as a fifth falling posture, and the posture of the liquid container 10A when it falls in the state shown in FIG. 20 is referred to as a sixth falling posture. That is, the fifth falling posture is the posture of the liquid storage chamber 29A when the second wall 62 is the bottom surface (the lowest surface), and the sixth falling posture is the bottom wall (the third wall 63 is the bottom surface). This is the posture of the liquid storage chamber 29A when it becomes the lowest surface.

  Hereinafter, with reference to FIGS. 15 to 20, the liquid storage chamber 29 </ b> A of the liquid container 10 </ b> A according to the present embodiment will be described focusing on differences from the first embodiment. Moreover, about the same component as Embodiment 1, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  As shown in FIG. 15, the liquid storage chamber 29 </ b> A of the liquid container 10 </ b> A according to this embodiment is located at a position between the reinforcing wall 65 facing the second wall 62, and the first wall 61 and the bottom wall 60. A sixth wall 66 connecting the second wall 62 and the fifth wall 67 is provided. That is, the liquid storage chamber 29 </ b> A is newly provided with a sixth wall 66, which is a difference from the liquid storage chamber 29 of the first embodiment. Other configurations are the same between the present embodiment and the first embodiment.

The sixth wall 66 is formed in contact with the second wall 62, the third wall 63, the fifth wall 67, and the fourth wall 64. For this reason, the internal space 30 of the liquid storage chamber 29 </ b> A is divided into two internal spaces 30 </ b> A and 30 </ b> B by the sixth wall 66. The first internal space 30 </ b> A is an internal space 30 surrounded by the sixth wall 66, the second wall 62, the third wall 63, the fourth wall 64, and the first wall 61. Arranged on the Z (+) direction side (first wall 61 side) with respect to the space 30B. The second internal space 30B is an internal space 30 surrounded by the sixth wall 66, the second wall 62, the third wall 63, the fourth wall 64, and the bottom wall 60, and the first internal space 30A. Is disposed on the Z (−) direction side (bottom wall 60 side).
The first internal space 30A is an example of “an internal space closer to the first wall than the sixth wall of the liquid storage chamber”. The second internal space 30B is an example of “an internal space closer to the bottom wall than the sixth wall”.

The reinforcing wall 65 supports the second member 12 and increases the bonding strength of the second member 12 to the first member 11. Further, the reinforcing wall 65 supports the sixth wall 66 and increases the strength of the sixth wall 66.
In addition, the structure by which the reinforcement wall 65 was abbreviate | omitted may be sufficient.

The sixth wall 66 is provided with an opening 66A that connects the first internal space 30A and the second internal space 30B. The opening 66 </ b> A is provided at a corner where the fourth wall 64 and the fifth wall 67 intersect.
Note that, when the opening 66A is formed in the second region 112, the fourth wall 64 is not a so-called corner portion where the fourth wall 64 and the fifth wall 67 intersect, for example, as one side of the opening 66A. Further, the central portion of the second region 112 that does not include the fifth wall 67 may be used.

  As shown in FIG. 16, when the first wall 61 and the sixth wall 66 are projected onto a horizontal plane (XY plane), the first wall 61 and the sixth wall 66 form a quadrilateral 61C, and the quadrilateral 61C. Is divided into four regions (a first region 111, a second region 112, and a second region) by a first center line 101A passing through the center of the first side 101 and a second center line 102A passing through the center of the second side 102. 3 regions 113 and a fourth region 114).

An inner end 38 of the liquid injection part 35 is provided in the first region 111 on the first wall 61.
The sixth wall 66 is provided with an opening 66A that allows the first internal space 30A and the second internal space 30B to communicate with each other. The opening 66 </ b> A is a second region that forms a diagonal with the first region 111 in which the inner end 38 of the liquid injection portion 35 is formed when the sixth wall 66 is projected onto the horizontal plane (XY plane) in the use posture. 112. That is, the opening 66 </ b> A is provided so as to be farthest from the inner end 38 of the liquid injection part 35.
In other words, in other words, the position of the opening 66A is point-symmetric with respect to the first region 111 (where the liquid injection portion 35 is formed) around the center point Q where 101A and 102A intersect. Are formed in the second region 112 in the positional relationship.

As shown in FIGS. 17 and 18, in this embodiment, when the operator injects the ink 17 into the liquid storage chamber 29A with the upper limit mark 48 as the upper limit of the amount of the ink 17, the ink 17 is stored in the liquid storage chamber 29A. In the second internal space 30B. That is, when the operator injects the ink 17 into the liquid storage chamber 29A as the upper limit of the amount of the ink 17, the ink 17 is stored in the second internal space 30B of the liquid storage chamber 29A. Wall 66 is provided.
The ink 17 stored in the second internal space 30B is covered with the sixth wall 66, and the ink 17 is difficult to move from the second internal space 30B to the first internal space 30A. For example, when the liquid surface 17A of the ink 17 swings, the ink 17 is difficult to move to the liquid injection portion 35 side, and therefore, the first internal space 30A is compared with the case where the sixth wall 66 is not provided. It becomes difficult to leak from the liquid injection | pouring part 35 connected to.

As shown in FIG. 19, in the fifth falling posture, the second wall 62 becomes the bottom surface (the lowest surface), so the liquid injection part 35 provided near the second wall 62 is arranged at a low position. Is done. Since the opening 66A is provided so as to be farthest from the inner end 38 of the liquid injection part 35, the opening 66A is disposed at a high position in the fifth falling posture.
That is, in the fifth falling posture, the liquid injection part 35 is disposed at a low position, and the opening 66A is disposed at a high position.

  In the fifth falling posture, since the opening 66A is arranged at a high position, the ink 17 accommodated in the second internal space 30B is difficult to move to the first internal space 30A and communicates with the first internal space 30A. Thus, the ink 17 is less likely to leak from the liquid injection part 35.

As shown in FIG. 20, in the sixth falling posture, the third wall 63 becomes the bottom surface (the lowest surface), so the liquid injection part 35 provided near the third wall 63 is disposed at a low position. Is done. Since the opening 66A is provided so as to be farthest from the inner end 38 of the liquid injection part 35, the opening 66A is disposed at a high position in the sixth falling posture.
That is, in the sixth falling posture, the liquid injection part 35 is disposed at a low position, and the opening 66A is disposed at a high position.

  In the sixth falling posture, since the opening 66A is arranged at a high position, the ink 17 accommodated in the second internal space 30B is difficult to move to the first internal space 30A and communicates with the first internal space 30A. Thus, the ink 17 is less likely to leak from the liquid injection part 35.

  As shown in FIGS. 19 and 20, the sixth wall 66 is parallel to the X axis and the Y axis, but it is not always necessary. For example, in FIG. 19, the sixth wall 66 may be inclined to the left side of the drawing.

In the liquid container 10A according to the present embodiment, since the liquid injection part 35 is provided in the first region 111, the ink 17 leaks from the liquid injection part 35 in both the first falling posture and the second falling posture. The same effect as Embodiment 1 that it is difficult can be produced.
In addition, in the liquid container 10A according to the present embodiment, the ink 17 is unlikely to leak from the liquid injection unit 35 in both the fifth falling posture and the sixth falling posture in which the liquid injection unit 35 is disposed at a low position. A new effect can be produced.

  Note that the opening 66A may be provided in any of the first region 111 to the fourth region 114. However, in the positional relationship between the opening 66A and the liquid injection portion 35, the following configuration is preferable. When the liquid injection part 35 is disposed in the second region 112, the opening 66 </ b> A is preferably disposed in the first region 111 that forms a diagonal with the second region 112. When the liquid injection part 35 is disposed in the third region 113, the opening 66 </ b> A is preferably disposed in the fourth region 114 that forms a diagonal with the third region 113. When the liquid injection part 35 is disposed in the fourth region 114, the opening 66 </ b> A is preferably disposed in the third region 113 that forms a diagonal with the fourth region 114.

  The present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit or idea of the invention that can be read from the claims and the entire specification. Various modifications other than the above-described embodiments are possible. Conceivable. Hereinafter, a modification will be described.

(Modification 1)
FIG. 21 is a diagram corresponding to FIG. 6, and is an exploded perspective view of the liquid container according to Modification 1 when the viewing wall is viewed from the higher side. FIG. 22 is a diagram corresponding to FIG. 7, and is an exploded perspective view of the liquid container according to this modification when the wall facing the viewing wall is viewed from the lower side.
The liquid container 10B according to Modification 1 is different from the liquid container 10 according to Embodiment 1 in the shape of the liquid storage chamber 29B. Other configurations are the same between the first modification and the first embodiment.
Hereinafter, the difference from the first embodiment will be mainly described with reference to FIGS. Moreover, about the same component as Embodiment 1, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

As shown in FIGS. 21 and 22, the liquid storage chamber 29B includes the first wall 61, the second wall 62B, the third wall 63, the fourth wall 64B, the reinforcing wall 65, 5 walls 67 and a bottom wall 60B.
Since the 1st wall 61, the 3rd wall 63, the reinforcement wall 65, and the 5th wall 67 are the same as Embodiment 1, description is abbreviate | omitted.

  A portion surrounded by the point A2, the point E1, the point K1, and the point D1 is the second wall 62B. A portion surrounded by the point A2, the point B1, the point G1, and the point E1, that is, a portion where the broken line hatching is performed is the fourth wall 64B. A portion surrounded by the points A2, B1, C1, and D1 is the bottom wall 60B.

  A point A2 that forms the vertices of the second wall 62B, the fourth wall 64B, and the bottom wall 60B is a point A1 that forms the vertices of the second wall 62, the fourth wall 64, and the bottom wall 60 according to the first embodiment. This corresponds to FIG. The point A2 in this modification is arranged at a position lower than the point A1 in the first embodiment. This is one of the differences between this modification and the first embodiment.

  In this modification, the point A2 is lower than the points C1 and D1 and is arranged at the same height as the point B1. That is, the points A2 and B1, and the points C1 and D1 are arranged at the same height, and the points A2 and B1 are lower than the points C1 and D1.

In the bottom wall 60B, the point D1 disposed on the second wall 62 side is higher than the point B1 disposed on the fourth wall 64 side and the fifth wall 67 side. For this reason, the bottom wall 60B has a second inclined portion that inclines so that the second wall 62 side becomes higher.
In the present application, “the bottom wall has an inclined portion that is inclined so that the second wall side is higher” means that at least a part of the side connecting the point A2 and the point D1 of the bottom wall 60B is in the Z (+) direction. It corresponds to a state in which the bottom wall 60 has an inclined portion that becomes higher and is inclined from the raised portion.

In the bottom wall 60B, the points C1 and D1 arranged on the third wall 63 side are higher than the points A2 and B1 arranged on the fourth wall 64 side. For this reason, the bottom wall 60B has a third inclined portion that is inclined from the third wall 63 toward the fourth wall 64 so that the fourth wall 64 side is lowered.
In the present application, “having an inclined portion inclined in the direction from the third wall to the fourth wall so that the fourth wall side is lowered” means at least a side connecting the point A2 and the point B1 on the bottom wall 60B. This corresponds to a state having an inclined portion inclined in the direction from the third wall 63 to the fourth wall 64 so that a part thereof is lowered in the Z (−) direction.

  In the present modification, since the liquid injection part 35 is provided in the first region 111, the ink 17 is unlikely to leak from the liquid injection part 35 in both the first fall position and the second fall position. The same effect can be achieved.

  Furthermore, since the position of the point A2 that is the apex of the liquid storage chamber 29B of the present modification is disposed at a position lower than the point A1 that is the apex of the liquid storage chamber 29 of the first embodiment, The volume of the chamber 29B is larger than the volume of the liquid storage chamber 29 of the first embodiment. As a result, the liquid storage chamber 29 </ b> B of the present modification can store more ink 17 than the liquid storage chamber 29 of the first embodiment.

(Modification 2)
FIG. 23 is a diagram corresponding to FIG. 6, and is an exploded perspective view of a liquid container according to Modification 2 when the viewing wall is viewed from the higher side.
The liquid storage chamber 29C of the liquid container 10C according to Modification 2 is different from the liquid storage chamber 29B of the liquid container 10B according to Modification 1, and the other configurations are the same in Modification 2 and Modification 1.
Hereinafter, with reference to FIG. 23, it demonstrates centering on difference with the modification 1. FIG. Moreover, about the same component as Embodiment 1, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

As shown in FIG. 23, the liquid storage chamber 29C includes a first wall 61, a second wall 62C, a third wall 63C, a fourth wall 64B, a reinforcing wall 65, and a fifth wall. 67C and a bottom wall 60C.
Since the first wall 61, the fourth wall 64B, and the reinforcing wall 65 have the same shape as that of the first modification, the description thereof is omitted.

  A portion surrounded by the point A2, the point E1, the point K1, and the point D2 is the second wall 62C. A portion surrounded by the point D2, the point C2, the point H1, and the point K1 is the third wall 63C. A portion surrounded by the point B1, the point G1, the point H1, and the point C2 is the fifth wall 67C. A portion surrounded by the point A2, the point B1, the point C2, and the point D2 is the bottom wall 60C.

  The point D2 on the second wall 62C, the third wall 63C, and the bottom wall 60C corresponds to the point D1 (see FIG. 21) on the second wall 62B, the third wall 63, and the bottom wall 60B in the first modification. . The point D2 in the present modification is disposed at a position lower than the point D1 in the first modification. This is one of the differences between this modification and Modification 1.

  The point C2 in the third wall 63C, the fifth wall 67C, and the bottom wall 60C corresponds to the point C1 (see FIG. 21) in the third wall 63, the fifth wall 67, and the bottom wall 60B in the first modification. . The point C2 in this modification is arranged at a position lower than the point C1 in the modification 1. This is also one of the differences between this modification and Modification 1.

  The points C2 and D2 are arranged at the same height as the points A2 and B1. That is, the point A2, the point B1, the point C2, and the point D2 are arranged at the same height. For this reason, the bottom wall 60C surrounded by the point A2, the point B1, the point C2, and the point D2 does not have an inclined portion and is disposed along the XY plane (horizontal plane). As a result, the bottom wall 60C is disposed at a position lower than the bottom wall 60B according to the first modification. For this reason, the liquid storage chamber 29C according to the present modification has a larger volume than the liquid storage chamber 29B according to the modification 1, and can store more ink 17.

(Modification 3)
In the embodiment described above, the plurality of liquid containers 10 are configured separately from each other, and the liquid container that can store the ink to be supplied to the liquid ejecting head 40 includes the one liquid storage chamber 29 that can store the ink 17 and the liquid. One liquid injection portion 35 capable of injecting the ink 17 into the storage chamber 29 was provided.
The configuration of the liquid container may be a configuration in which a plurality of liquid containers 10 are integrated into one liquid container. That is, the liquid container that can store the ink supplied to the liquid ejecting head 40 may have a configuration including a liquid storage chamber that can store ink and a liquid injection portion that can inject ink into the liquid storage chamber. In this case, a plurality of liquid storage chambers are provided in one liquid container, and the plurality of liquid storage chambers are individually partitioned from each other and configured to be able to store different types of liquids.

(Modification 4)
In the above embodiment, the liquid ejecting apparatus in the present application (for example, the printing unit 3 in the first embodiment) is a liquid ejecting apparatus that ejects, discharges, or applies liquid other than the ink 17 and consumes it. Also good. Note that the state of the liquid ejected as a minute amount of liquid droplets from the liquid ejecting apparatus includes a granular shape, a tear shape, and a thread-like shape. The liquid here may be any material that can be consumed by the liquid ejecting apparatus. For example, it may be in a state in which the substance is in a liquid phase, such as a liquid with high or low viscosity, sol, gel water, other inorganic solvents, organic solvents, solutions, liquid resins, liquid metals (metal melts ). Further, not only a liquid as one state of a substance but also a substance in which particles of a functional material made of a solid such as a pigment or metal particles are dissolved, dispersed or mixed in a solvent is included. As a typical example of the liquid, in addition to the ink 17 described in the above embodiments, a liquid crystal or the like can be given.

  Here, the ink 17 includes general water-based inks and oil-based inks, and various liquid compositions such as gel inks and hot-melt inks. Further, a sublimation transfer ink can be used as the ink 17. The sublimation transfer ink is an ink containing a sublimation color material such as a sublimation dye. In the printing method, such a sublimation transfer ink is ejected onto a transfer medium by a liquid ejecting apparatus, the transfer medium is brought into contact with the printing material, heated to sublimate the color material, and transferred to the printing material. The substrate is a T-shirt, a smartphone, or the like. As described above, if the ink includes a sublimable color material, printing can be performed on various printed materials (printing media).

  As a specific example of the liquid ejecting apparatus, for example, a liquid containing a material such as an electrode material or a color material used for manufacturing a liquid crystal display, an EL (electroluminescence) display, a surface emitting display, or a color filter in a dispersed or dissolved form. There is a liquid ejecting apparatus for ejecting the liquid. Further, it may be a liquid ejecting apparatus that ejects a bio-organic matter used for biochip manufacturing, a liquid ejecting apparatus that ejects liquid as a sample that is used as a precision pipette, a printing apparatus, a micro dispenser, or the like. In addition, transparent resin liquids such as UV curable resin to form liquid injection devices that pinpoint lubricant oil onto precision machines such as watches and cameras, and micro hemispherical lenses (optical lenses) used in optical communication elements. May be a liquid ejecting apparatus that ejects the liquid onto the substrate. Further, it may be a liquid ejecting apparatus that ejects an etching solution such as acid or alkali in order to etch a substrate or the like.

  DESCRIPTION OF SYMBOLS 1 ... Printer, 3 ... Printing unit, 4 ... Tank unit, 5 ... Scanner unit, 17 ... Ink, 34 ... Liquid leak prevention wall, 35 ... Liquid injection | pouring part, 36 ... Outer end, 37 ... Tube part, 38 ... Inner end 38A ... Opening, 40 ... Liquid ejecting head, 46 ... Viewing wall, 60 ... Bottom wall, 61 ... First wall, 61C ... Rectangle, 62 ... Second wall, 63 ... Third wall, 64 ... First 4th wall, 65 ... 5th wall, 66 ... 6th wall, 67 ... 7th wall, 101 ... 1st side, 102 ... 2nd side, 103 ... 3rd side, 104 ... 4th side, 101A ... center line of the first side, 102A ... center line of the second side, 111 ... first area, 112 ... second area, 113 ... third area, 114 ... fourth area.

Claims (10)

A liquid container capable of storing a liquid to be supplied to the liquid ejecting head,
One liquid storage chamber capable of storing the liquid;
One liquid injection part capable of injecting the liquid into the liquid storage chamber;
With
The liquid injection part is formed on a first wall that defines the liquid storage chamber, and has an outer end opened to the outside and an inner end opened to the liquid storage chamber,
When the first wall is projected onto a horizontal plane in a use posture,
The first wall has a quadrilateral shape having a first side and a second side intersecting the first side;
The quadrilateral is divided into four regions by a first center line passing through the center of the first side and a second center line passing through the center of the second side,
The liquid container is provided such that the inner end is disposed in any one of the four regions. The liquid container according to claim 1,
The liquid storage chamber has a second wall extending in a direction intersecting with the first wall, the first wall has an inclined portion inclined so that the second wall side is lowered, and the liquid The liquid container, wherein the injection part is provided on the second wall side of the first wall. The liquid container according to claim 1 or 2,
The liquid storage chamber has a second wall extending in a direction crossing the first wall, and a bottom wall extending in a direction crossing the second wall and facing the first wall. The liquid container is characterized in that the bottom wall has an inclined portion that inclines so that the second wall side becomes higher. The liquid container according to claim 3,
The liquid storage chamber further includes a third wall extending in a direction intersecting the first wall, the second wall, and the bottom wall, and a fourth wall facing the third wall; Have
The liquid injection part is provided on the first wall closer to the third wall than the fourth wall;
The liquid container according to claim 1, wherein the bottom wall has an inclined portion that is inclined from the third wall toward the fourth wall so that the fourth wall side is lowered. The liquid container according to any one of claims 2 to 4,
The second wall is provided with an upper limit line indicating an upper limit of the amount of the liquid that can be injected into the liquid storage chamber, and constitutes a visual recognition wall from which the liquid level in the liquid storage chamber can be visually recognized from the outside.
When the viewing wall is viewed from a direction perpendicular to the viewing wall in the use posture,
A liquid container, wherein a center line passing through a center of the liquid injection part is arranged at a position different from a center line passing through a center of the upper limit line. The liquid container according to any one of claims 1 to 5,
A liquid container, comprising: a liquid leakage prevention wall that protrudes to a position spaced apart from the liquid injection part on the first wall and surrounds the liquid injection part. The liquid container according to any one of claims 1 to 6,
The liquid container includes a cylindrical portion having a through hole communicating with the opening at the outer end and the opening at the inner end. The liquid container according to any one of claims 1 to 7,
An air chamber is further provided above the liquid storage chamber,
The atmosphere chamber has a wall located above the liquid injection part,
The wall
When the liquid is injected into the liquid injection part from a liquid injection container for injecting the liquid into the liquid storage chamber,
A liquid container having a recess which is separated from a side wall of the liquid injection container. The liquid container according to claim 4,
The liquid storage chamber is
A fifth wall facing the second wall;
A sixth wall connecting the second wall and the fifth wall at a position between the first wall and the bottom wall;
An opening provided in the sixth wall and communicating the internal space on the first wall side with respect to the sixth wall of the liquid storage chamber and the internal space on the bottom wall side with respect to the sixth wall; ,
Further comprising
The opening is provided in a second region that forms a diagonal with the first region in which the inner end of the liquid injection portion is formed when the sixth wall is projected onto a horizontal plane in a use posture. A liquid container characterized by that. A liquid ejecting apparatus comprising: a liquid ejecting head; and a liquid container capable of storing a liquid to be supplied to the liquid ejecting head,
The liquid container is
A liquid storage chamber capable of storing the liquid;
A liquid injection part capable of injecting the liquid into the liquid storage chamber;
With
The liquid injection part is formed on a first wall that defines the liquid storage chamber, and has an outer end opened to the outside and an inner end opened to the liquid storage chamber,
When the first wall is projected onto a horizontal plane in the use posture,
The first wall has a quadrilateral shape having a first side and a second side intersecting the first side;
The quadrilateral is divided into four regions by a first center line passing through the center of the first side and a second center line passing through the center of the second side,
The liquid injection part is provided so that the inner end is disposed in any of the four regions,
The liquid ejecting apparatus according to claim 1, further comprising: a liquid leakage prevention wall that protrudes to a position spaced apart from the liquid injection unit on the first wall and surrounds the liquid injection unit.

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