Liquid refill container and liquid refill system

Abstract

To inhibit contamination from being caused by a recording liquid when a liquid storage container is supplied with the recording liquid.SOLUTION: A liquid supplement container supplies a recording liquid to a liquid storage container having a recording liquid injected part. The liquid supplement container includes: a holding part which holds the recording liquid to be supplied to the liquid storage container; and an injection part which has an opening for discharging the recording liquid of the holding part and is inserted into the injected part of the liquid storage container. The opening is open so as to face an inner wall of the injected part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a liquid refill container, and Fluid Refill System Mu Regarding. [Background technology]

[0002] When refilling a liquid storage container with recording liquid (ink) using a liquid refill container, the refilled recording liquid may splash on the liquid surface inside the liquid storage container and contaminate the surrounding area. The ink refill auxiliary device described in Patent Document 1 includes a connection part that can be connected in a liquid-tight manner to an ink inlet member having an axial flow path, and an ink inlet part that allows ink to flow toward the connection part. By refilling ink through these components, the ink refill auxiliary device prevents contamination caused by splashing from the ink liquid surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-161743 Summary of the Invention [Problem to be solved by the invention]

[0004] In a configuration that includes components for refilling ink, when connecting or disconnecting components from the ink supply auxiliary device, ink adhering to the components may splash and contaminate the surrounding area. In addition, an increase in the number of components also leads to an increase in costs.

[0005] SUMMARY OF THE INVENTION An object of the present invention is to prevent contamination caused by recording liquid when refilling a liquid storage container with recording liquid. [Means for solving the problem]

[0006] In order to achieve the above object, the liquid refill container according to the present invention is a liquid refill container for refilling a liquid storage container having a receiving portion for the recording liquid with recording liquid, the liquid refill container comprising: a holding portion for holding the recording liquid to be refilled into the liquid storage container; and an injecting portion having an opening for discharging the recording liquid from the holding portion and inserted into the receiving portion of the liquid storage container, the injection part has a tip part that protrudes in a direction intersecting the insertion direction at the tip of the injection part and toward an inner wall of the injection receiving part, The opening is The tip portion is open in a direction in which the tip portion protrudes, The opening is arranged to face the inner wall of the injection portion. [Effects of the Invention]

[0007] According to the present invention, contamination caused by recording liquid when refilling a liquid storage container with recording liquid can be suppressed. [Brief explanation of the drawings]

[0008] [Figure 1] 10A and 10B are diagrams illustrating how the liquid replenishment system suppresses scattering when replenishing the recording liquid. [Figure 2] 10A and 10B are diagrams illustrating examples of the shape of the tip of a liquid refill container. [Figure 3] 10A and 10B are diagrams illustrating how scattering of recording liquid is suppressed when the recording liquid is replenished in the second embodiment. [Figure 4] 10A and 10B are diagrams illustrating the positions of a recess and a step provided in an injection portion. [Figure 5] 10A and 10B are diagrams illustrating the positioning of a liquid storage container and a liquid refill container. [Figure 6] 10A and 10B are diagrams illustrating an example of refilling a liquid storage container with recording liquid from a liquid refill container. [Figure 7] 10A and 10B are diagrams illustrating scattering of recording liquid that occurs when liquid is replenished. DETAILED DESCRIPTION OF THE INVENTION

[0009] Preferred embodiments of the present invention will be described below with reference to the drawings. The dimensions, materials, shapes, and relative positions of the components described in the embodiments may be changed as appropriate depending on the configuration to which the invention is applied and various conditions, and the scope of the invention is not intended to be limited to the following embodiments.

[0010] <Embodiment 1> The liquid replenishment system is a system that replenishes liquid (recording liquid) from a liquid replenishment container to a liquid storage container. The liquid replenishment container is a container for refilling the liquid storage container with recording liquid. A plurality of liquid storage containers are installed in a liquid ejection device that ejects liquid (recording liquid) using a recording head to perform recording. The liquid replenishment container and liquid storage container according to the first embodiment suppress contamination by recording liquid when refilling the recording liquid. Here, contamination by recording liquid in a comparative example will be described with reference to FIGS. 6 and 7.

[0011] 6 is a diagram showing an example of refilling a liquid storage container 603 with recording liquid from a liquid refill container 601 according to a comparative example. The liquid refill container 601 has an injection part 602 for refilling the liquid storage container 603 with recording liquid. The liquid storage container 603 has an injection opening 604 into which the injection part 602 is inserted and through which the recording liquid is injected from the liquid refill container 601.

[0012] Fig. 7 is a diagram illustrating the scattering of recording liquid that occurs when refilling the liquid, and is an enlarged view of the vicinity of the inlet 604 of the liquid storage container 603 and the inlet part 602 of the liquid refill container 601 according to the comparative example.

[0013] 7, the recording liquid to be replenished is dropped directly from an inlet 602 of a liquid replenishing container 601 onto a liquid surface 605 of the recording liquid stored in a liquid storage container 603. The dropped recording liquid collides with point E on the liquid surface 605 (E1). Upon collision, the recording liquid splashes from the liquid surface 605 (E2, E3), and the splashed recording liquid may splash out from an inlet 604 of the liquid storage container 603 and contaminate the surroundings (E3).

[0014] 1, the suppression of scattering when refilling recording liquid in the liquid refill system 100 will be described. The liquid refill system 100 includes a liquid storage container 101 and a liquid refill container 201.

[0015] The liquid storage container 101 according to the first embodiment has an injection portion 102 into which recording liquid is injected and a storage portion 105 that stores the recording liquid injected in the injection portion 102. The injection portion 102 has an injection port 103 into which the injection portion 202 of the liquid refill container 201 is inserted. The recording liquid is injected into the injection portion 102 from the opening of the injection portion 202. The injection portion 102 has an area on its inner wall 104 that faces the opening of the injection portion 202. The storage portion 105 is replenished with recording liquid via the area that faces the opening of the injection portion 202.

[0016] The liquid refill container 201 has an injecting section 202 that ejects recording liquid horizontally, and a holding section 203 that holds recording liquid to be replenished into the liquid storage container 101. The injecting section 202 has an opening for ejecting the recording liquid from the holding section 203. The opening is open so as to face the inner wall 104 of the injected section 102. The injecting section 202 is inserted into the injected section 102 through the inlet 103 of the liquid storage container 101. Figure 1 enlarges the injected section 102 of the liquid storage container 101 and the vicinity of the injecting section 202 of the liquid refill container 201, and schematically shows the flow of the ejected recording liquid dripping onto the liquid surface 106.

[0017] When recording liquid is injected with the opening of the injection part 202 facing the inner wall 104 of the liquid storage container 101, the recording liquid discharged from the injection part 202 collides with point A on the inner wall 104 of the injection receiving part 102. The recording liquid that collides with point A travels while slowing down to point B where a corner is formed on the inner wall 104 (B1).

[0018] The decelerated recording liquid is dropped from point B and collides with point C on the liquid surface 106 (C1). The recording liquid is dropped onto the liquid surface 106 from point B, which is lower than the injecting portion 202, at a speed slower than when the recording liquid is dropped directly from the injecting portion 202. This prevents the recording liquid discharged from the opening of the injecting portion 202 toward the inner wall 104 of the injected portion 102 from scattering. In addition, the recording liquid discharged toward the inner wall 104 of the injected portion 102 is prevented from scattering to the outside from the injecting port 103.

[0019] If the refilled recording liquid is prone to foaming, the speed at which the recording liquid drips down the inner wall 104 is reduced, thereby reducing the amount of air trapped in the liquid surface 106 and suppressing foaming of the recording liquid. By suppressing foaming, the foamed recording liquid is prevented from overflowing from the inlet 103 and contaminating the surrounding area. This also reduces the time and effort required to refill the recording liquid while waiting for the foamed recording liquid to disappear.

[0020] 2 is a diagram illustrating an example of the tip shape of the injection part 202 of the liquid refill container 201. The tip shape of the injection part 202 is, for example, a hook shape, a slanted and jutting shape, a shape with notches on both sides, an L-shaped curl shape, or an L-shape. The tip shape of the injection part 202 may be any shape that allows the recording liquid to be ejected so as to collide with the inner wall 104 of the injection receiving part 102 of the liquid storage container 101, and is not limited to the shape exemplified in FIG.

[0021] The hook shape, inclined and jutting shape, and double-notched shape are examples in which, when the injection part 202 is inserted into the injection receiving part 102 of the liquid storage container 101, the injection part 202 opens on the side surface at the tip side that faces the inner wall of the injection receiving part 102. The injection part 202 is configured in a cylindrical shape with a bottom at the tip side, has a flow path for the recording liquid inside that extends in the insertion direction, and has an opening provided in part of the cylindrical part.

[0022] The hook shape has a substantially hemispherical bottom at the tip side of the injection part 202, with a notch (opening) formed in the side surface at the tip side. The inclined and jutted shape is a shape in which the notch (opening) of the injection part 202 is formed so that its circumferential width increases toward the tip of the injection part 202. In the inclined and jutted shape, the bottom is formed flat, so the ejection direction of the recording liquid is more easily determined than in the case of the hook shape.

[0023] The double-notched shape is a shape in which a pair of notches (openings) are provided on both sides in a direction perpendicular to the insertion direction of injection section 202. The openings are not limited to being formed on both opposing side surfaces, but may be formed in three or more places, or multiple openings may be formed on one side.

[0024] When a notch (opening) is formed at the tip of injection part 202, such as in a hook shape, a slant + jut shape, or a shape with notches on both sides, there is no protrusion at the tip, making it easy to cap injection part 202. Furthermore, when an opening is formed at the tip of injection part 202, it is less likely to get caught on injection port 103, so injection part 102 can be attached smoothly.

[0025] The L-shaped curl shape is a shape in which the tip of the injecting portion 202 is curved in an L shape. The injecting portion 202 has a curved tip that curves and protrudes from the insertion direction at the tip of the injecting portion 202 toward the inner wall of the injected portion 102. The opening of the injecting portion 202 is open in the direction in which the curved tip protrudes at the curved tip. Note that the tip of the injecting portion 202 need only have an opening for discharging the recording liquid facing the inner wall 104 of the injected portion 102, and is not limited to the L shape shown in FIG. 2 , and may be curved in a gentle arc shape.

[0026] The L-shape is a shape in which the tip of the injection part 202 is L-shaped. The injection part 202 has a tip that protrudes in a direction intersecting the insertion direction at the tip of the injection part 202 and toward the inner wall of the injection part 102. The opening of the injection part 202 is formed by the tip that protrudes at the tip. The shape of the tip is not limited to an L-shape, and may be bent at a predetermined angle to match the shape of the poured portion 102 of the liquid storage container 101.

[0027] When the tip shape of the injection part 202 is a hook shape, a slanted + jut shape, or a double-notched shape, the opening area can be made larger than when it is an L-curl shape or an L-shape. In this case, when the injection part 202 has a hook shape, a slanted + jut shape, or a double-notched shape, and recording liquid is refilled at a constant pressure, the recording liquid is discharged at a slower rate than when it has an L-curl shape or an L-shaped injection part 202. The slower rate of the recording liquid is expected to further suppress scattering.

[0028] When the recording liquid is discharged at a reduced speed, it is desirable to bring the opening of the injection part 202 of the liquid refill container 201 close enough to the inner wall 104 of the liquid storage container 101 so that the recording liquid can collide with it.

[0029] In particular, when the tip of the injection part 202 is shaped like a notch on both sides, the ink is replenished at a slower rate than when it is shaped like a hook or a slant + poke shape. In this case, it is desirable to position the injection part 202 so that the opening is closer to the inner wall 104 of the liquid storage container 101.

[0030] On the other hand, when the tip shape of the injection part 202 is an L-curl shape or an L-shape, the opening area is smaller than when it is a hook shape or a tilted and jutted shape, and the flow of the recording liquid is faster and more linear. Therefore, the opening of the injection part 202 and the inner wall 104 can be configured to be farther apart than when the tip shape is a hook shape or a tilted and jutted shape.

[0031] <Embodiment 2> In the second embodiment, the shape of the injection portion 102 is changed to reduce the speed of the recording liquid more than in the first embodiment, thereby further suppressing scattering of the recording liquid. Figures 3(A) to 3(F) are diagrams for explaining how scattering of the recording liquid is suppressed when refilling the recording liquid in the second embodiment.

[0032] The configurations of the liquid storage container 101 and the liquid replenishment container 201 according to the second embodiment are the same as those of the first embodiment, but the shape of the injection portion 102 of the liquid storage container 101 is different from the example shown in Fig. 1. The shape of the injection portion 102 in the second embodiment includes a shape in which the inner wall against which the recording liquid replenished from the injection portion 202 collides is inclined, a shape in which a recess or step is provided in the inner wall 104, and the like. The shape of the injection portion 102 in the second embodiment also enables the liquid storage container 101 and the liquid replenishment container 201 to achieve the effect of suppressing contamination by the recording liquid when the recording liquid is replenished.

[0033] 3(A) shows an example in which the injection receiving portion 102a includes an inclined surface in the region of the inner wall 104a facing the opening of the injection portion 202. The inclined surface is inclined so that the recording liquid ejected toward the inner wall 104a of the injection receiving portion 102a moves in a direction toward the storage portion 105 after hitting the inner wall 104a. The inclined surface is inclined so that the farther away from the injection receiving port 103 it is, the farther away it is from the injection receiving port 103 in a direction perpendicular to the insertion direction of the injection portion 202. In FIG. 3(A), the injection portion 202 is inserted vertically downward into the injection receiving portion 102.

[0034] When the replenished recording liquid is discharged from the opening of the inlet 202, it collides with point A, which is the opposite position of the inner wall 104a, and flows along the inclined surface of the inner wall 104a to point B. Because the inner wall 104a is inclined, the recording liquid drips onto point C on the liquid surface 106 at point B, which is away from the inlet 103. Therefore, the recording liquid that has splashed at point C on the liquid surface 106 is prevented from flowing out of the inlet 103.

[0035] 3(B) shows an example in which the inner wall 104b of the injection portion 102b includes an inclined surface and a recess is formed on the inclined surface, as in FIG. 3(A). In FIG. 3(B), the injection portion 202 is inserted vertically downward into the injection portion 102b.

[0036] Portion to be injected 102b includes a first wall surface facing injection portion 202 on the side of inner wall 104b closer to injection inlet 103. Portion to be injected 102b also includes a second wall surface (bottom surface of the recess) on the side of inner wall 104b farther from injection inlet 103 than the first wall surface, the second wall surface facing the opening and farther from injection portion 202 than the first wall surface. Portion to be injected 102b has a convex portion on its outer surface at a position corresponding to the second wall surface.

[0037] Like the injection portion 102a shown in FIG. 3(A), the injection portion 102b has an inclined surface, which can prevent the recording liquid from splashing out of the injection port 103.

[0038] Since a recess is formed in the inner wall 104b, even if the recording liquid collides with point A and splashes toward the injection port side (the injection port 103 side), the step D on the injection port 103 side prevents the recording liquid from leaking out of the injection port 103.

[0039] Furthermore, portion to be injected 102b includes a protruding portion (step B) on inner wall 104b that protrudes outward from the region facing the opening, on a side farther from portion to be injected 102b than the region facing the opening. Step B further decelerates the recording liquid being dropped onto liquid surface 106, thereby preventing the recording liquid from scattering when dropped at point C on liquid surface 106.

[0040] In the example of Figure 3(B), the inner wall 104b has a recess formed by a step B on the liquid surface 106 side and a step D on the injection port 103 side, but the step may be on either the liquid surface 106 side or the injection port 103 side.

[0041] 3(C) shows an example in which the inner wall 104c of the injection portion 102c has a step D on the injection port 103 side of point A where the recording liquid ejected from the injection portion 202 collides. In FIG. 3(C), the injection portion 202 is inserted vertically downward into the injection portion 102c.

[0042] The injection portion 102c includes a first wall surface facing the injection portion 202 on the side of the inner wall 104c closer to the injection port 103. The injection portion 102b includes a second wall surface (a region including point A) on the side of the inner wall 104b farther from the injection port 103 than the first wall surface, the second wall surface facing the opening and further from the injection portion 202 than the first wall surface.

[0043] Because the injection portion 102c has a step D on the injection port 103 side, the recording liquid that collides with the inner wall 104c drips from point B, which is away from the injection port 103, to point C on the liquid surface 106. Therefore, the recording liquid that splashes at point C where it collides with the liquid surface 106 is prevented from flowing out of the injection port 103. Furthermore, even if the recording liquid that collides with point A on the inner wall 104c splashes toward the injection port 103, the step D prevents the recording liquid from flowing out of the injection port 103.

[0044] 3(D) shows an example in which the inner wall 104d of the injection portion 102d has a step D and a step D' on the injection port 103 side of point A where the recording liquid collides with the injection portion 202. In FIG. 3(D), the injection portion 202 is inserted vertically downward into the injection portion 102d.

[0045] Of inner wall 104d provided with steps D and D', a region facing injection section 202 on the side closer to injection port 103 corresponds to a first wall surface. Further, a surface of inner wall 104d farther from injection port 103 than the first wall surface and facing the opening farther from injection section 202 than the first wall surface corresponds to a second wall surface.

[0046] When the tip of the injection part 202 has a notched shape on both sides, the steps D and D' may be formed to match the orientation of the opening of the injection part 202. By using an injection part 202 with notches on both sides, the area of the opening through which the recording liquid is ejected increases. This further reduces the speed of the recording liquid, and prevents the recording liquid from splashing.

[0047] When the tip of the injection part 202 has a shape with an opening in one direction, such as a hook shape, the injection part 202 can be inserted into the injection opening 103 with the opening oriented to either the step D or the step D'. By aligning the opening of the injection part 202 with either the step D or the step D', splashing of the recording liquid is suppressed.

[0048] 3(E) shows an example in which the portion to be injected 102e includes an inclined surface in the region of the inner wall 104e facing the opening of the injection portion 202, and the injection portion 202 is inserted obliquely downward relative to the vertical direction into the portion to be injected 102. By having an inclined surface, the portion to be injected 102e can achieve the effect of preventing the recording liquid from splashing and escaping from the injection port 103, similar to the portion to be injected 102a shown in FIG.

[0049] By inserting the injection part 202 obliquely downward relative to the vertical direction, the liquid refill container 201 can be inserted into the injection opening 103 without being in a vertical position when refilling with recording liquid, with the opening not facing horizontally. In the example of Fig. 3(E), dripping of liquid from the injection part 202 is suppressed more than when the liquid refill container 201 is inserted into the injection opening 103 in a vertical position.

[0050] 3(F) shows an example in which the injection portion 102f includes an inclined surface in a region of the inner wall 104f facing the opening of the injection portion 202, and a recess is formed in the inner wall 104f. Furthermore, the injection portion 202 is inserted into the injection portion 102f obliquely downward with respect to the vertical direction.

[0051] In inner wall 104f where the recess is formed, a region facing injection section 202 on the side closer to injection port 103 corresponds to a first wall surface. In addition, a region of inner wall 104d farther from injection port 103 than the first wall surface, and facing the opening farther from injection section 202 than the first wall surface, corresponds to a second wall surface.

[0052] As in Figure 3(E), the injection portion 102f has an inner wall 104f that includes an inclined surface, and the injection portion 202 is inserted into the injection portion 102f diagonally downward relative to the vertical direction, so that the injection portion 102f can achieve the same effect as the injection portion 102e.

[0053] Furthermore, since the inner wall 104f of the portion to be implanted 102f includes an inclined surface and a recess is formed in the inner wall 104f, the portion to be implanted 102f can achieve the same effect as the portion to be implanted 102b in FIG. 3(B).

[0054] <Embodiment 3> Embodiment 3 is an embodiment in which the position where the recess or step is formed in the injection receiving portion 102 of the liquid storage container 101 in Embodiment 2 is limited. Figures 4(A) and 4(B) are diagrams for explaining the position of the recess or step formed in the liquid storage container 101 according to Embodiment 3.

[0055] 3(B) and 3(F) and the step shown in Fig. 2(C) and 3(D), if formed at position 107a on the side surface of the liquid storage container 101 as shown in Fig. 4(A), they may come into contact with other adjacent liquid storage containers 101. In addition, the width in which the liquid storage container 101 is installed becomes large.

[0056] In the liquid storage container 101 according to the third embodiment, the recess or step in the injection portion 102 is formed at position 107b (the top surface side of the liquid storage container 101) or position 107c (the front side) in a direction in which no other liquid storage containers are arranged, as shown in Fig. 4(B). By providing the recess or step on the inner wall 104 of the injection portion 102 in the longitudinal direction of the liquid storage container 101 where no other liquid storage containers are arranged, it is possible to prevent the recess or step from protruding from the width of the main body.

[0057] The recess and step provided on inner wall 104 of injection portion 102, in a region facing the opening of injection portion 202, corresponds to a second wall surface. Also, in inner wall 104 in which the recess is formed, a step that protrudes outward from the region facing the opening on the side farther from injection port 103 than the region facing the opening corresponds to a protrusion.

[0058] The liquid storage container 101 has a convex portion on the outer surface of the injection receiving portion 102 at a position corresponding to the second wall surface. When the liquid refill system 100 includes a plurality of liquid storage containers, the plurality of liquid storage containers are arranged adjacent to each other so that the injection receiving portions 102 face the same direction.

[0059] Fig. 4(A) shows an example in which the convex portion is provided on one side (position 107a) of the outer surface of the injection receiving portion 102 in the direction in which multiple liquid storage containers are adjacent. Fig. 4(B) shows an example in which the convex portion is provided at a position on the outer surface of the injection receiving portion 102 that is outside the area facing the other adjacent injection receiving portion 102. As in Fig. 4(B), by providing the convex portion at a position on the outer surface of the injection receiving portion 102 that is outside the area facing the other adjacent injection receiving portion 102, it is possible to avoid contact with the other adjacent liquid storage containers 101.

[0060] <Embodiment 4> In the fourth embodiment, the liquid storage container 101 and the liquid refill container 201 are provided with an engaged portion and an engaging portion for mutual alignment when the injected portion 102 is inserted into the injecting portion 202. Figures 5(A) and 5(B) are diagrams for explaining the positioning of the liquid storage container 101 and the liquid refill container 201.

[0061] 5(A) is a diagram illustrating a liquid refill container 201 according to embodiment 4. The liquid refill container 201 includes an engagement portion 501 that positions the injecting portion 202 relative to the injected portion 502 so that the opening of the injecting portion 202 faces a predetermined direction relative to the inner wall of the injected portion 502. If an inclined surface, recess, or step is provided on the inner wall of the injected portion 502, the predetermined direction can be the direction in which the inclined surface, recess, or step is provided.

[0062] 5(B) is a diagram illustrating a liquid storage container 101 according to embodiment 4. The liquid storage container 101 has an engaged portion 503 that can engage with the engaging portion 501 of the liquid refill container 201. The engaged portion 503 positions the injection portion 202 relative to the injection portion 502 so that the position of the injection portion 202 of the liquid refill container 201 relative to the injection portion 502 is such that the opening of the injection portion 202 faces a predetermined direction relative to the inner wall of the injection portion 502.

[0063] When refilling the liquid storage container 101 with recording liquid, the effect of suppressing scattering of recording liquid can be obtained by aligning the inner wall 104 of the liquid storage container 101 with the opening of the injection part 202 of the liquid refill container 201. In particular, as described in the second embodiment, if a recess or step is formed in the inner wall 104 of the injection receiving part 102, it is desirable to insert the injection part 202 so that its opening faces the direction in which the recess or step is formed.

[0064] In the example of FIG. 5, the injection part 202 is configured such that the engaging part 501 is aligned with the engaged part 503, and the injected part 502. The injecting portion 202 is inserted up to the position of cross section OO in FIG. 5(A), which is the same size as the injection opening of the injected portion 502. By engaging the engaging portion 501 with the engaged portion 503, the orientation and position of the liquid storage container 101 and the liquid refilling container 201 can be determined relative to each other so that the opening of the injecting portion 202 is oriented in an appropriate position facing the inner wall 104.

[0065] It should be noted that the engaging portion 501 of the liquid refill container 201 and the engaged portion 503 of the liquid storage container 101 only need to be able to determine at least one of their orientations and positions relative to each other, and their respective shapes are not limited to the shapes exemplified in Fig. 5. The engaging portion 501 and the corresponding engaged portion 503 may be provided in multiple locations and may be provided in any orientation.

[0066] The engaging portion 501 and the engaged portion 503 may be configured so as to determine the relative positions of the liquid refill container 201 and the liquid storage container 101, and for example, the cross-sectional shapes of the engaging portion 501 and the engaged portion 503 may be triangular or rectangular, etc.

[0067] In addition, in a liquid refill system 100 having multiple liquid storage containers 101, the engaging portion 503 may be shaped so as to be able to engage with the engaging portion 501 of the corresponding liquid refill container 201, but not to engage with the engaging portion of a liquid refill container corresponding to another liquid storage container.

[0068] By making the shapes of the engaged portions 503 of adjacent liquid storage containers 101 different among the liquid storage containers 101 mounted in the liquid ejection device, it is possible to reduce the risk of the liquid storage containers 101 being erroneously refilled with different types of recording liquid. Also, by making the shapes of the engaged portions 503 of multiple liquid storage containers 101 mounted in the liquid ejection device different from one another, it is possible to prevent the liquid storage containers 101 from being erroneously refilled with different types of recording liquid. [Explanation of symbols]

[0069] 101: liquid storage container, 102: injected portion, 104: inner wall of injected portion, 201: liquid refill container, 202: injection portion, 203: holding portion

Claims

1. A liquid refilling container for refilling a liquid storage container having a receiving portion for the recording liquid, comprising: a holding section for holding recording liquid to be replenished in the liquid storage container; an injection part having an opening for discharging the recording liquid from the holding part and being inserted into the injection part of the liquid storage container; A liquid refill container comprising: the injection part has a tip part that protrudes in a direction intersecting the insertion direction at the tip of the injection part and toward an inner wall of the injection receiving part, The opening is open in the direction in which the tip portion protrudes, and is open so as to face the inner wall of the injection portion. A liquid refill container characterized by:

2. A liquid refilling container for refilling a liquid storage container having a recording liquid receiving portion with recording liquid, a holding section for holding recording liquid to be replenished in the liquid storage container; an injection part having an opening for discharging the recording liquid from the holding part and being inserted into the injection part of the liquid storage container; A liquid refill container comprising: the injection part has a curved tip part at a tip end of the injection part that curves and protrudes from the insertion direction toward an inner wall of the injection receiving part, The opening is open in the curved tip portion in a direction in which the curved tip portion protrudes, and is open so as to face an inner wall of the injection portion. A liquid refill container characterized by:

3. A liquid refilling container for refilling a liquid storage container having a recording liquid receiving portion with recording liquid, a holding section for holding recording liquid to be replenished in the liquid storage container; an injection part having an opening for discharging the recording liquid from the holding part and being inserted into the injection part of the liquid storage container; A liquid refill container comprising: the injection part is configured as a bottomed cylindrical shape at the tip end side, has a substantially hemispherical bottom at the tip end side, has a flow path for the recording liquid therein extending in the insertion direction, and the opening is provided in a part of the cylindrical part, The opening faces the inner wall of the injection portion. A liquid refill container characterized by:

4. A liquid refilling container for refilling a liquid storage container having a recording liquid receiving portion with recording liquid, a holding section for holding recording liquid to be replenished in the liquid storage container; an injection part having an opening for discharging the recording liquid from the holding part and being inserted into the injection part of the liquid storage container; A liquid refill container comprising: the injection part is configured as a cylindrical part with a bottom at the tip end, has a flow path for the recording liquid therein extending in the insertion direction, and the opening is provided in a part of the cylindrical part; The opening is open to face the inner wall of the injection portion, and the width in the circumferential direction becomes wider toward the tip of the injection portion. A liquid refill container characterized by:

5. The injection part is positioned relative to the injection part so that the opening faces a predetermined direction relative to the inner wall of the injection part. The injection part is further provided with an engaging part that can be engaged with the engaged part of the injection part.

5. The liquid refill container according to claim 1, wherein the liquid refill container is a container for refilling a liquid.

6. A liquid refill container according to any one of claims 1 to 5; the liquid storage container including: an injection portion having an injection port into which the injection portion is inserted, the injection portion into which the recording liquid is injected from the opening of the injection portion inserted through the injection port; and a storage portion that stores the recording liquid injected in the injection portion; 1. A liquid replenishment system comprising: the injection portion has an area on its inner wall facing the opening, and the area on the inner wall facing the opening includes an inclined surface that is inclined so that the recording liquid ejected from the opening toward the inner wall of the injection portion hits the inner wall of the injection portion and then moves in a direction toward the storage portion; The inclined surface is inclined so as to move away from the injection port in a direction perpendicular to the insertion direction of the injection part as the inclined surface moves away from the injection port. A liquid replenishment system comprising:

7. A liquid refill container according to any one of claims 1 to 5; the liquid storage container including: an injection portion having an injection port into which the injection portion is inserted, the injection portion into which the recording liquid is injected from the opening of the injection portion inserted through the injection port; and a storage portion that stores the recording liquid injected in the injection portion; 1. A liquid replenishment system comprising: the injection portion has an area on an inner wall facing the opening, a first wall surface facing the injection portion on a side of the inner wall closer to the injection port; a second wall surface on the inner wall farther from the injection port than the first wall surface and facing the opening, the second wall surface being farther from the injection port than the first wall surface; Contains A liquid replenishment system comprising:

8. The liquid storage container has a convex portion on the outer surface of the receiving portion at a position corresponding to the second wall surface.

8. The liquid replenishment system of claim 7.

9. A liquid replenishment system including a plurality of the liquid storage containers, The plurality of liquid storage containers are arranged adjacent to each other so that the injection portions face the same direction, The convex portion is provided on one side of the outer surface of the receiving portion in a direction in which the plurality of liquid storage containers are adjacent to each other.

9. The liquid replenishment system of claim 8.

10. A liquid replenishment system including a plurality of the liquid storage containers, The plurality of liquid storage containers are arranged adjacent to each other so that the injection portions face the same direction, The convex portion is provided at a position on the outer surface of the injection portion that is out of a region facing another adjacent injection portion.

9. The liquid replenishment system of claim 8.

11. The injection part is inserted vertically downward into the injection part. A liquid replenishment system according to any one of claims 6 to 10.

12. 11. The liquid refilling system according to claim 6, wherein the injecting portion is inserted obliquely downward relative to the vertical direction into the receiving portion.

13. The injection portion includes an area on the inner wall facing the opening, the area being inclined along the insertion direction of the injection portion.

13. The liquid replenishment system of claim 12.

14. A liquid refill container according to any one of claims 1 to 5; the liquid storage container including: an injection portion having an injection port into which the injection portion is inserted, the injection portion into which the recording liquid is injected from the opening of the injection portion inserted through the injection port; and a storage portion that stores the recording liquid injected in the injection portion; 1. A liquid replenishment system comprising: The injection portion has an area on an inner wall facing the opening, and includes a protrusion that protrudes from the area facing the opening on the inner wall farther from the injection port than the area facing the opening. A liquid replenishment system comprising:

15. A liquid refill container according to any one of claims 1 to 5; a plurality of the liquid storage containers, each of which has an inlet into which the injection part is inserted, the inlet into which the recording liquid is injected from the opening of the injection part inserted from the inlet, and a storage part that stores the recording liquid injected in the inlet part; 1. A liquid refill system comprising: the plurality of liquid storage containers further include an engaged portion engageable with the engaging portion of the liquid refill container, which positions the injection portion of the liquid refill container relative to the injection portion so that the position of the injection portion of the liquid refill container relative to the injection portion is a position where the opening faces a predetermined direction relative to the inner wall of the injection portion; The engaged portion is shaped so as to be engageable with the engaging portion of the corresponding liquid refill container, but not to be engageable with the engaging portion of the liquid refill container corresponding to another liquid storage container. A liquid replenishment system comprising:

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