JP6264328B2 - Liquid refill container - Google Patents

Description

The present invention relates to a liquid replenishing container, particularly a liquid replenishing container for replenishing a liquid container of an ink jet printer with a liquid such as ink.

An ink jet printer, which is an example of a liquid ejecting apparatus, performs printing by ejecting ink from a recording head onto a recording object (for example, printing paper). As a technique for supplying ink to a recording head, a technique for supplying ink from an ink tank disposed outside a printer to a recording head via a tube is known (for example, Patent Document 1). The ink tank includes an ink inlet, and the user can easily replenish ink from the ink inlet.

JP-A-2005-219383

When refilling ink by inserting the ink bottle replenishment port from the ink bottle containing refilling ink into the ink tank inlet, the user continues to hold the ink bottle. There was a problem that the position of the refill port was not stable.

Further, since the ink bottle replenishment port is inserted to a position deeper than the ink tank as expected, there is a possibility that ink replenishment cannot be performed properly.

Further, the tip portion including the refill port of the ink bottle may be contaminated with ink in the ink tank.

In addition, a label containing information necessary for refilling the ink tank may be attached to the ink bottle as described above, but leaked ink or the like adheres to the label,
There was a possibility that the user could not read the information necessary for replenishment.

The above problems are not limited to ink bottles that replenish ink in an ink tank, but are common to liquid replenishing containers that replenish liquid to liquid containers that supply liquid to a liquid ejecting apparatus.

Therefore, an object of the present invention is to improve the convenience of replenishing liquid into a liquid container in a liquid replenishing container that replenishes liquid into a liquid container that supplies liquid to the liquid ejecting apparatus.

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 replenishing container for replenishing a liquid container for supplying a liquid to a liquid ejecting apparatus,
An accommodating portion for accommodating the liquid for replenishment therein;
A replenishment port that is inserted into the inlet of the liquid container and replenishes the liquid container with the liquid stored in the storage unit;
A liquid replenishing container, comprising: a positioning portion that positions a relative position of the replenishing port and the liquid container with respect to an insertion direction of the liquid container when refilling the liquid container.

According to the liquid refill container described in this application example, when the liquid is refilled into the liquid container, the relative position of the refill port of the liquid refill container and the liquid container with respect to the refill port insertion direction is positioned. The position relative to the liquid container is stabilized.

[Application Example 2] The liquid replenishing container according to the application example,
When the liquid is replenished to the upper limit of the amount of liquid allowed to be accommodated in the liquid container, the positioning unit is configured such that a position where the replenishment port does not contact the liquid in the liquid container is the relative position. Liquid replenishment container provided with.

According to the liquid replenishing container described in this application example, even when the liquid is replenished up to the upper limit of the amount of liquid stored in the liquid container, the replenishing port does not contact the liquid, so that an appropriate amount of ink can be replenished, It is possible to prevent the vicinity of the refill port of the liquid refill container from being contaminated with liquid.

[Application Example 3] The liquid replenishing container according to the above application example,
When the liquid is refilled into the liquid container, the liquid in the container is guided to the refill port, and the liquid guide has a cross section smaller than the cross section of the container,
The liquid replenishing container is a protrusion that projects from the outer wall of the liquid guide part to the outside and is positioned to abut on the tube wall of the inlet of the liquid container when refilling the liquid.

According to the liquid replenishing container described in this application example, the replenishing port can be positioned with respect to the liquid container when the liquid is replenished by the protrusion provided on the outer wall of the liquid guiding unit that guides the liquid from the storage unit to the replenishing port. it can.

Application Example 4 The liquid replenishing container according to the application example,
The liquid replenishing container, wherein the plurality of protrusions are provided at equal intervals in the circumferential direction of the liquid guide portion.

According to the liquid replenishing container described in this application example, the replenishing port can be positioned at the time of liquid replenishment by the plurality of protrusions provided in the circumferential direction of the liquid guide portion, and the replenishing port can be positioned more stably.

[Application Example 5] The liquid replenishing container according to the above application example,
The liquid refill container according to claim 1,
Having a plug member,
The refill port is formed by opening the plug member under shear force,
The liquid replenishing container, wherein the stopper member includes a recess for capping the replenishing port after opening.

According to the liquid replenishing container described in this application example, the replenishing port formed by opening the plug member can be capped by the recess provided in the plug member.

Application Example 6 A liquid replenishing container for replenishing a liquid container that supplies liquid to the liquid ejecting apparatus,
An accommodating portion for accommodating the liquid for replenishment therein;
A replenishment port that is inserted into an inlet of the liquid container and replenishes the liquid container with the liquid stored in a storage unit;
A label on which ID information used for replenishment of the liquid into the liquid container is attached,
A liquid replenishing container, wherein the surface of the label has liquid repellency.

According to the liquid replenishing container described in this application example, it is possible to reduce the leakage ink from continuing to adhere to the label surface on which the ID information used for the liquid replenishing process is described.

Application Example 7 A liquid replenishing container for replenishing a liquid container that supplies a liquid to a liquid ejecting apparatus,
The bottom,
An accommodating portion for accommodating the liquid for replenishment therein;
A replenishment port for replenishing the liquid container with the liquid inserted into the inlet of the liquid container and accommodated in the accommodating portion;
A first label and a second label different from the first label, on which ID information used for replenishment of the liquid into the liquid container is described;
The liquid replenishing container, wherein the bottom of the second label is attached so that the vertical upper end of the second label overlaps the vertical lower end of the first label in a state where the bottom is placed on a horizontal plane.

According to the liquid refill container described in this application example, it is possible to prevent the leaked ink moving between the outer wall of the liquid refill container and the first label from adhering to the surface of the second label. Can do.

The present invention can be realized in various forms, and can be realized in a mode such as a liquid replenishing method using the above-described liquid replenishing container in addition to the above-described liquid replenishing container.

(A) and (B) are diagrams for explaining an ink tank which is a liquid container for supplying a liquid to the liquid ejecting apparatus and the liquid ejecting apparatus. It is a figure for demonstrating the liquid supply from an ink tank to a sub tank. It is an external perspective view of an ink tank. It is an external perspective view of an ink tank. It is an external perspective view of an ink tank. It is the front view which installed the ink bottle which is a liquid replenishment container in the horizontal surface. It is an external appearance perspective view of the cover part connected with the main-body part of an ink bottle. It is sectional drawing of the cover part connected with the main-body part of an ink bottle. (A) and (B) are diagrams for explaining ink replenishment from an ink bottle to an ink tank. It is a figure for demonstrating the label affixed on an ink bottle.

Embodiments of the present invention will be described in the following order.
A. First Embodiment B. Modified example

A. First Example A-1. Configuration of Liquid Ejecting System FIG. 1 is a diagram for explaining a liquid ejecting system 1 including a liquid ejecting apparatus 12 and an ink tank 30 which are closely related to an ink bottle 70 described later. FIG. 1A is a first external perspective view of the liquid ejecting system 1. FIG. 1B is a second external perspective view of the liquid ejecting system 1 and shows the ink tank 30. In FIG. 1, XYZ axes orthogonal to each other are shown in order to specify the direction. It should be noted that the XYZ axes orthogonal to each other are also shown in the subsequent drawings as necessary.

As shown in FIG. 1A, the liquid ejecting system 1 includes an ink jet printer 12 (also simply referred to as “printer 12”) as a liquid ejecting apparatus, and a tank unit 50. The printer 12 includes a paper feed unit 13, a paper discharge unit 14, a carriage (sub tank mounting unit) 16, and four sub tanks 20. The four sub tanks 20 store inks having different colors. Specifically, the four sub tanks 20 include a sub tank 20Bk that stores black ink, a sub tank 20Cn that stores cyan ink, a sub tank 20Ma that stores magenta ink, and a sub tank 20Yw that stores yellow ink.
It is. The four sub tanks 20 are mounted on the carriage 16.

The printing paper set in the paper feeding unit 13 is conveyed into the printer 12, and the printed printing paper is discharged from the paper discharge unit 14.

The carriage 16 is movable in the main scanning direction (paper width direction, X-axis direction). This movement is performed via a timing belt (not shown) by driving a stepping motor (not shown). A recording head (not shown) is provided on the lower surface of the carriage 16.
Printing is performed by ejecting ink from a plurality of nozzles of the recording head onto the printing paper. Various parts constituting the printer such as the timing belt and the carriage 16 are the case 10.
Housed and protected inside.

The tank unit 50 includes a top case 54, a first case 56, a second side case 58, and a bottom case (not shown). The cases 54, 56, and 58 and the bottom case can be molded from a synthetic resin such as polypropylene (PP) or polystyrene (PS). In this embodiment, the cases 54, 56, and 58 and the bottom case are molded using polystyrene. Further, as shown in FIG. 1 (B), the tank unit 50 includes a case (lid member).
The ink tank 30 is provided as four liquid storage containers surrounded by 54, 56, 58 and a bottom case (lid member). The tank unit 50 is more stably installed in a predetermined place (for example, a horizontal surface such as a desk or a shelf) by the cases 54, 56, 58 and the bottom case. As shown in FIG. 1A, the upper case 54 can be opened and closed in the direction of the arrow Yp with the side 54A as a fulcrum.

The four ink tanks 30 store ink corresponding to the colors stored in the four sub tanks 20. That is, the four ink tanks 30 respectively store black ink, cyan ink, magenta ink, and yellow ink. The ink tank 30 can store a larger amount of ink than the sub tank 20.

Ink tanks 30 containing ink of each color are connected to the sub tank 20 by a hose (tube) 24 in order to store ink of the corresponding color. The hose 24 is formed of a flexible member such as synthetic rubber. Ink is ejected from the recording head and the sub tank 2
When 0 ink is consumed, the ink in the ink tank 30 is supplied to the sub tank 20 via the hose 24. Thereby, the liquid ejecting system 1 can continue printing for a long time without interruption. Ink may be directly supplied from the ink tank 30 to the recording head via the hose 24 without providing the sub tank 20.

The principle that ink is supplied from the ink tank 30 to the sub tank 20 using FIG. 2, and
A schematic configuration of the ink tank 30 and the sub tank 20 will be described. FIG. 2 is a schematic cross-sectional view for explaining the liquid supply from the ink tank to the sub tank.

The liquid ejection system 1 is installed on a predetermined installation surface sf that is a horizontal plane. The ink tank 30 includes a liquid outlet 306, a liquid storage chamber 340, an air storage chamber 330, a liquid injection port 304, an ink tank plug member 302, an air introduction port 317, and an air release port 318.

In the usage posture of the ink tank 30 when the ink tank 30 supplies ink to the sub-tank 20, the Z-axis positive direction is the vertically upward direction, and the Z-axis negative direction is the vertically downward direction. Further, in the pouring posture when pouring ink into the ink tank 30, the positive direction of the X axis is the vertical upward direction,
The X axis negative direction is the vertically downward direction. In addition, when ink is injected into one ink tank 30 of a tank unit 50 in which two or more ink tanks 30 are arranged (stacked), all the ink tanks 30 are injected because the posture of the tank unit 50 is changed. Become posture. Also,
When injecting ink into the ink tank 30, the case 54 (see FIG.
A)) is opened.

The liquid storage chamber 340 stores ink. The liquid storage chamber 340 includes a partition wall portion 342 that extends a predetermined length from the inner surface of the first wall portion 370c1 toward the liquid storage chamber 340. The partition wall portion 342 is formed in the liquid storage chamber 340 over the entire Y-axis direction (width direction). That is, the partition wall part 342 partitions the first wall part 370c1 into two regions. 2
Of the regions partitioned into two regions, the region communicating with the liquid outlet 306 is defined as the liquid holding unit 3.
45. The liquid storage chamber 340 has a space portion 341. The space portion 341 has a concave shape formed by a wall portion that forms the liquid storage chamber 340, and opens in the vertically downward direction (X-axis negative direction) of the liquid injection port 304 in the injection posture of the ink tank 30. Yes. Also,
The space portion 341 is the lower end portion 30 of the liquid injection port 304 in the injection posture of the ink tank 30.
It is located above 4m (X-axis positive direction). For easy understanding, the liquid storage chamber 340
Among these, the boundary between the space portion 341 and the other region is indicated by a broken line.

The liquid injection port 304 has a circular channel inside and communicates with the liquid storage chamber 340.
Specifically, the upper end portion 304 p that is one end portion of the liquid inlet 304 opens outward, and the lower end portion 304 m that is the other end portion opens in the liquid storage chamber 340. An ink tank plug member 302 is detachably attached to the liquid inlet 304 to prevent ink from leaking out of the liquid inlet 304. When the ink tank 30 is used, the liquid inlet 30
4 is open toward a direction (horizontal direction, X-axis positive direction in FIG. 2) orthogonal to the vertical direction (Z-axis direction).

A liquid outlet 349 that is one end of the liquid outlet 306 is connected to the liquid storage chamber 340. In other words, the liquid outlet 349 is open in the liquid storage chamber 340. The liquid outlet 349 is located below the X-axis negative direction side of the space 341 in the ink tank 30 injection posture. The liquid outlet 306 of the ink tank 30 and the liquid receiver 202 of the sub tank 20 are connected by a hose 24. As a result, the ink in the liquid storage chamber 340 flows from the liquid outlet 306 to the sub tank 20 via the hose 24.

The air introduction port 317 and the air release port 318 are both ends of a meandering flow channel for introducing the air into the ink tank 30 from the outside. The air opening 318 is in communication with the air accommodating chamber 330. The air storage chamber 330 communicates with the liquid storage chamber 340 through a communication portion 350 that is a narrow channel. The communication part 350 is a channel having a small channel area to the extent that a meniscus can be formed. In the use state of the ink tank 30, which is a state when supplying ink to the printer 12, a meniscus is formed in the communication portion 350.

The air storage chamber 330 has a predetermined capacity, and stores a predetermined amount of ink when the air in the liquid storage chamber 340 expands due to a temperature change or the like and the ink flows backward through the communication portion 350. In other words, the ink tank 30 includes the air storage chamber 330, so that the possibility that the ink leaks out from the air introduction port even when the ink flows backward can be reduced.

When ink is injected from the liquid injection port 304 into the liquid storage chamber 340 in the injection posture and then the liquid injection port 304 is sealed with the ink tank plug member 302 and put into a use posture, the air in the liquid storage chamber 340 expands and the liquid The storage chamber 340 is maintained at a negative pressure. Further, the air accommodating chamber 330 is maintained at atmospheric pressure by communicating with the atmosphere opening port 318.

The sub tank 20 is formed of a synthetic resin such as polystyrene or polyethylene. The sub tank 20 includes an ink storage chamber 204, an ink flow path 208, and a filter 206.
With. An ink supply needle 16 a of the carriage 16 is inserted into the ink flow path 208. The filter 206 prevents inflow of impurities into the recording head 17 by capturing the impurities when impurities such as foreign matters are mixed in the ink. Ink storage chamber 204
The ink of the ink flow path 208 and the ink supply needle 1 are sucked from the recording head 17 by suction.
6a is supplied to the recording head 17. The ink supplied to the recording head 17 is ejected toward the outside (printing paper) through the nozzle.

In the use posture, the communication portion 350 that forms the meniscus is disposed at a position lower than the recording head 17. Thereby, the water head difference d1 occurs. In the use posture, the water head difference d1 in a state where the meniscus is formed in the communication part 350 is expressed as “steady-state water head difference d1”.
Also called.

As the ink in the ink storage chamber 204 is sucked by the recording head 17, the ink storage chamber 204 becomes a predetermined negative pressure or higher. When the ink storage chamber 204 becomes a predetermined negative pressure or higher, the ink in the liquid storage chamber 340 is supplied to the ink storage chamber 204 via the hose 24. That is, the ink storage chamber 204 is automatically replenished with the amount of ink that has flowed out of the recording head 17 from the liquid storage chamber 340. In other words, the air storage chamber 33 in the ink tank 30.
As the suction force (negative pressure) is increased to some extent from the printer 12 side than the water head pressure d1 generated by the vertical height difference between the ink liquid level in contact with 0 and the recording head (specifically, nozzles), the ink Is supplied from the liquid storage chamber 340 to the ink storage chamber 204.

When the ink in the liquid storage chamber 340 is consumed, the air G (also referred to as “bubble G”) in the air storage chamber 330 is introduced into the liquid storage chamber 340 through the communication unit 350. Thereby, the liquid level of the liquid storage chamber 340 is lowered.

A-2. Next, the configuration of the ink tank 30 will be described with reference to FIGS. FIG. 3 shows the ink tank 3
It is the 1st appearance perspective view of 0. FIG. 4 is a second external perspective view of the ink tank 30. FIG. 5 is a third external perspective view of the ink tank 30. 3 to 5, the illustration of the ink tank plug member 302 (FIG. 2) is omitted.

As shown in FIGS. 3 to 5, the ink tank 30 has a substantially columnar shape (specifically, a substantially prismatic shape). As shown in FIG. 3, the ink tank 30 includes a tank body 32 and a first film 34.
And a second film 322.
The tank body 32 is formed of a synthetic resin such as polypropylene. The tank body is translucent. Thereby, the user can confirm the amount of ink inside from the outside.
The shape of the tank body 32 is a concave shape with one side opened. Various shapes of ribs (walls) 362 are formed in the recess of the tank body 32. Here, the open side surface (one side surface including the outer frame of the tank body 32 forming the opening) is also referred to as an open side surface 370 (opening wall portion 370).

The first film 34 is formed of a synthetic resin such as polypropylene and is transparent. The 1st film 34 is affixed on the tank main body 32 so that the opening of the opening side surface 370 may be covered by heat welding. Specifically, the first film is affixed densely so that there is no gap between the end face of the rib 362 and the end face of the outer frame of the tank body 32. Thereby, a plurality of rooms are formed.
Specifically, the air storage chamber 330, the liquid storage chamber 340, and the communication part 350 are mainly formed. That is, the tank body 32 and the first film 34 form an air storage chamber 330, a liquid storage chamber 340, and a communication portion 350. The tank body 3 of the first film 34
The attachment to 2 is not limited to heat welding, and may be performed using, for example, an adhesive.

The liquid storage chamber 340 is formed by a plurality of wall portions. Specifically, mainly the opening wall 370 formed by the first film 34 and the opposing wall 370b (FIG. 4) facing the opening wall 370 across the internal space (for example, the liquid storage chamber 340). And a plurality of connecting wall portions 370c (FIGS. 3 and 5) connected to the opening wall portion 370 and the opposing wall portion 370b. As shown in FIGS. 3 and 4, the outer shape of the opening wall portion 370 and the outer shape of the opposing wall portion 370b are the same shape (convex shape).
It is.

As shown in FIG. 5, the plurality of connection wall portions 370 c include a first wall portion 370 c 1 and a second wall portion 37.
0c2. When the ink tank 30 is assembled as the tank unit 50 (FIG. 1A), the first wall portion 370c1 is visible from the outside. Of the plurality of wall portions forming the liquid storage chamber 340, the opening wall portion 370 (FIG. 3) having a plane perpendicular to the arrangement direction (stacking direction, Y-axis direction) of the plurality of ink tanks 30 and the opposing wall portion. 370b (FIG. 4) cannot be visually recognized from the outside when the ink tank 30 is assembled as the tank unit 50.

The first wall portion 370c1 is a wall portion that stands upright with respect to an installation surface (horizontal plane) on which the ink tank 30 is installed in the use posture of the ink tank 30. That is, the first wall portion 370c1 is a wall portion that extends upward from below when the ink tank 30 is used. In the case of the present embodiment, the first wall portion 370 c 1 is configured in the usage posture of the ink tank 30. The first wall portion 370c1 is in the pouring posture of the ink tank 30.
The bottom surface of the ink tank 30 is configured.

The second wall portion 370c2 is a wall portion that stands upright with respect to an installation surface (horizontal plane) on which the ink tank 30 is installed in the pouring posture of the ink tank 30. That is, the second wall portion 370c2 is a wall portion that extends upward from below in the pouring posture of the ink tank 30. In the case of the present embodiment, the second wall portion 370c2 configures the wall portion of the ink tank 30 so as to have an angle substantially perpendicular to the installation surface (horizontal plane) in the pouring posture of the ink tank 30.

As shown in FIG. 5, the first wall 370c1 is provided with a lower limit line LM1 as a lower limit portion. The second wall portion 370c2 is provided with an upper limit line LM2 as an upper limit portion.
The lower limit line LM1 and the upper limit line LM2 are linear. The lower limit line LM1 is a line that is horizontal (perpendicular to the vertical direction) in the usage posture. The upper limit line LM2 is a line that is horizontal (perpendicular to the vertical direction) in the injection posture. The lower limit line LM1 and the upper limit line LM2 are provided with the first wall portion 37 provided.
0c1 is a protrusion protruding from the outer surface of the second 370c2, and is integrally formed with the tank body 32.

The lower limit line LM1 is the first threshold value that is the lower limit of the ink amount for assuring proper hostile ejection in the liquid ejection system 1 when the ink in the liquid storage chamber 340 is consumed in the usage posture of the ink tank 30. It is provided to indicate to the user. The upper limit line LM2 is
In the injection posture of the ink tank 30, ink is injected from the liquid injection port 304 into the liquid storage chamber 340 by an ink bottle 70, which will be described later as an ink replenishing container, and the ink in the liquid storage chamber 340 is stored in the ink tank 30. It is provided to indicate to the user that the second threshold that is the upper limit has been reached. That is, the lower limit line LM1 and the upper limit line LM2 are used to identify from outside that the amount of liquid (ink) in the liquid storage chamber 340 has reached the first or second threshold.

A-3. Configuration of Ink Bottle FIG. 6 shows an ink bottle 70 which is an example of a liquid replenishing container according to the present invention. Using this ink bottle 70, ink is replenished to the ink tank 30 of the liquid ejecting system 1. The ink bottle 70 has a main body portion 72 for containing ink to be replenished to the ink tank 30 and an ink replenishment port 74b as a replenishing port serving as an outlet for the ink to be replenished to the ink tank 30, and the main body portion 72 is formed. And an ink bottle stopper portion 76 connected to the lid portion 74 at the portion of the ink replenishing port 74b of the lid portion 74 when not in use. The ink bottle 70 can be obtained by molding a synthetic resin such as polyethylene, polypropylene, or polystyrene.

The main body 72 has a substantially cylindrical shape, and the bottom 72e is placed on a flat surface of a desk or shelf during storage. A first label 72a is attached to the outer wall of the main body 72, and a second label 72b is attached to a position closer to the bottom 72e of the main body 72 than the first label 72a. On the first label 72a, a name of a product as an ink bottle 70 that is a container for refilling ink into the ink tank 30 of the liquid ejecting system 1, a design showing an image of the product, and the like are described.

On the other hand, the second label 72b describes ID information, which is information necessary for replenishing ink to the ink tank 30 of the liquid ejecting system 1, information on the expiration date of ink contained therein, and the like. (See FIG. 10). As the second label 72b, it is preferable to use a coated paper or a label whose surface has liquid repellency. As a label having such properties,
Examples include DuraTac (registered trademark) 10PN manufactured by Nitto Denko Corporation. If the surface has liquid repellency, it is possible to reduce the possibility that the leaked ink or the like is maintained on the surface of the second label 72b.

As shown in FIG. 6, in a state where the bottom portion 72e is placed on a predetermined installation surface sf that is a horizontal surface, the second label 72b is stuck on the lower end portion of the first label 72a so as to overlap. ing. By such an aspect, it is possible to prevent the ink leaking from the ink replenishing port 74b and flowing down the gap between the outer wall of the main body and the first label 72a from adhering to the surface of the second label 72b. Accordingly, it is possible to prevent the user from being able to read the ID information and the expiration date information written on the surface of the second label 72b.

FIG. 7 is an external perspective view of the lid portion 74 connected to the main body portion 72 of the ink bottle 70 and the ink bottle stopper portion 76 connected to the lid portion 74. FIG. 8 shows the lid 7 connected to the main body 72.
FIG. As shown in FIG. 8, the main body portion 72 and the lid portion 74 are connected by fitting the connecting portion 72d of the main body portion 72 and the connecting portion 74d of the lid portion 74, which are irregularities formed in a spiral shape. Yes. In addition, by rotating the lid portion 74 relative to the main body portion 72,
The connection between the main body 72 and the lid 74 is released.

The opening opposite to the bottom 72e of the main body 72 is sealed with a film 72f such as an aluminum vapor deposition film before use. When the ink is replenished to the ink tank 30, the user removes the cover 74 from the main body 72 and peels off the film 72f before use.

As shown in FIG. 8, the lid portion 74 and the ink bottle stopper portion 76 are connected by being integrally formed with a synthetic resin before opening (before use). When the user tears off the ink bottle stopper 76 from the lid 74, the ink refill port 74b is formed, and the ink bottle 70 is opened. That is, when the ink bottle 70 is opened, a shearing force acts on the portion of the lid 74 that becomes the ink replenishing port 74b, whereby the lid 74 and the ink bottle stopper 76 are separated to form the ink replenishing port 74b. Will be. As a result, ink can be replenished from the ink replenishment port 74b to the ink tank 30.

The lid 74 has an ink guide 74e (liquid guide) that guides the ink stored in the main body 72 to the ink replenishing port 74b when the ink tank 30 is refilled with ink. The cross section of the ink guide 74e is smaller than the cross section of the main body 72.

As shown in FIGS. 7 and 8, a convex portion (replenishment port) protruding outward from the outer wall of the lid 74 (ink guide portion 74e) at a predetermined distance (D2) from the ink replenishment port 74b. Two positioning portions 74a are provided. The two convex portions 74a are provided so that an angle formed with each other in a plan view is 180 °. In other words, it can be said that the ink guide portions 74e are provided at equal intervals in the circumferential direction.

The ink bottle stopper portion 76 is provided with a recess 76a on the opposite side of the connecting portion with the lid portion 74, and can be used as a cap for protecting the ink replenishing port 74b after the lid portion 74 is opened. The ink bottle stopper portion 76 is provided with a handle portion 76b. The handle portion 76b is provided so that a user or the like can easily remove the ink bottle stopper portion 76 capping the ink replenishing port 74b by the concave portion 76a by hooking a finger on the handle portion 76b.

A-4. Method of replenishing ink to ink tank When ink is refilled to ink tank 30, ID information is displayed on the user interface (not shown) of printer 12 or a host personal computer (not shown) connected to printer 12. The user is prompted to input via a printer driver screen (not shown) displayed on the screen.
When refilling ink from the ink bottle 70 to the ink tank 30, the user is requested to input such ID information because ink of an appropriate type (ink color, pigment ink or dye ink) for the printer 12 is replenished. This is to assure that. This is also for appropriately managing the amount of ink in the ink tank 30. When appropriate ID information is input, the ink tank 30 can be replenished with ink.

The ink tank 30 is tilted from the use posture (see FIG. 1B), and the posture (injection posture) is changed so that the first wall portion 370c1 faces a mounting surface such as a desk or a wall portion. Then, the ink tank plug member 302 that closes the liquid inlet 304 is removed, and the liquid inlet 304 is opened. Next, the ink replenishment port 74 b of the ink bottle 70 is connected to the liquid injection port 304 of the ink tank 30.
Insert the ink into the ink cartridge to replenish ink.

FIG. 9A shows a state where ink is being replenished using the ink bottle 70. FIG. 9B shows a state where ink is replenished using the ink bottle 70 and the water level of the ink in the liquid storage chamber 340 reaches the upper limit line LM2.

As shown in FIG. 9A, when ink is replenished from the ink bottle 70 to the ink tank 30, the upper end 304p of the liquid injection port 304 and one side of the convex portion (replenishment port positioning portion) 74a of the ink bottle 70. (One side). Thereby, the ink replenishment port 74 b of the ink bottle 70 is positioned relative to the ink tank 30.

In the present embodiment, the angle formed between the two convex portions 74a is 180 in plan view.
Are provided at equal intervals in the circumferential direction of the ink guide portion 74e. As a result, the balance of the drag received by the convex portion 74a of the ink bottle 70 coming into contact with the upper end 304p of the liquid injection port 304 is stabilized, and the posture of the ink bottle 70 when ink is replenished is stabilized.

As shown in FIG. 9B, even if the ink level in the liquid storage chamber 340 reaches the upper limit line LM2 as a result of replenishing ink from the ink bottle 70, the ink replenishing port 74b is in contact with the liquid level. Not done. At the time of ink replenishment, if the ink replenishment port 74 b comes into contact with the ink surface of the liquid storage chamber 340 or the ink replenishment port 74 b is immersed in the ink of the liquid storage chamber 340, the air in the ink bottle 70 becomes liquid storage chamber 340. It is blown into the ink inside, causing the generation of bubbles. When the generated bubbles are broken, a part of the ink forming the bubbles may be scattered and the ink tank 30 and the ink bottle 70 may be soiled. According to the present embodiment, such a situation can be prevented in advance. Further, even if the ink level in the liquid storage chamber 340 reaches the upper limit line LM2, it is possible to suppress the vicinity of the ink replenishing port 74b from being stained with ink.

B. Modifications It should be noted that elements other than the elements described in the independent claims of the claims in the constituent elements in the above embodiments are additional elements and can be omitted as appropriate. Further, the present invention is not limited to the above-described examples and embodiments, and can be implemented in various forms without departing from the gist thereof. For example, the following modifications are possible.

B-1. Modification 1
In the above-described embodiment, the two convex portions 74a are provided so that the angle formed with each other in a plan view is 180 °. However, it is sufficient that they are provided at equal intervals in the circumferential direction of the ink guide portion 74e. It is only necessary that the angles formed by the two convex portions 74a are equal. For example, when three convex portions 74a are provided, each of the angles formed by two adjacent convex portions 74a is 120 °.

B-2. Modification 2
In the above embodiment, the first label 72a and the second label 72b are attached to the outer wall of the main body 72 of the ink bottle 70. In addition, the transparent film is attached to the first label 72a. You may affix so that the 2nd label 72b may be covered. Thereby, the first label 72a and the second label 72b can be protected.

DESCRIPTION OF SYMBOLS 1 ... Liquid ejection system, 12 ... Inkjet printer (printer), 30 ... Ink tank as a liquid container, 70 ... Ink bottle as a liquid replenishment container, 72 ... Main-body part, 72a ... 1st label, 72b ... 2nd 72e ... bottom, 74 ... lid, 74a
... convex part (replenishment port positioning part), 76 ... ink bottle stopper, 302 ... ink tank stopper,
304: liquid inlet, 340: liquid storage chamber.

Claims (4)

A liquid replenishment container for replenishing a liquid container for supplying a liquid to a liquid ejecting apparatus,
An accommodating portion for accommodating the liquid for replenishment therein;
A lid part detachably connected to the housing part;
With
The lid is
A replenishment port that is inserted into the inlet of the liquid container and replenishes the liquid container with the liquid stored in the storage unit;
A connecting portion connectable to the housing portion;
A liquid guide for connecting the connecting portion and the replenishing port;
A positioning unit for positioning a relative position of the replenishing port and the liquid container with respect to an insertion direction of the liquid container when refilling the liquid container;
A cap that is connected at a portion of the replenishing port and that opens the replenishing port by receiving a shearing force, and has a recess that seals the replenishing port after opening, and protects the replenishing port When,
With
The positioning part includes a plurality of protrusions that protrude outward from the outer wall of the liquid guide part at a predetermined distance from the replenishing port, and are provided at equal intervals in the circumferential direction of the liquid guide part. Forms a contact surface extending to the outside of the replenishment port when the refill port is inserted into the injection port of the liquid container, and the contact surface forms the injection port of the liquid container when the liquid is replenished In the direction of the abutting portion that abuts against the wall surface that is positioned and the axis that is centered on the axis of the replenishing port, the connecting portion is away from the axis from the accommodating portion side to the abutting portion side. inclined, said abutting portion and the replenishing port of the liquid guide unit and a connecting portion connecting the opposite outer wall,
The cap includes a handle portion on which a user's finger is hooked when the cap is removed from a state of protecting the replenishing port.
Liquid refill container. The liquid refill container according to claim 1,
The liquid container has an upper limit that can be identified from the outside as a guideline of the upper limit of the amount of liquid to be stored,
The liquid replenishing container is positioned at a position where a gap is provided between the liquid replenishing container and the liquid surface located at the upper limit when the replenishing port is positioned when the positioning portion abuts on the inlet. The
Liquid refill container. The liquid refill container according to claim 1 or 2,
The positioning part is provided on the container side of the cap in a state where the cap protects the replenishing port. The liquid refill container according to any one of claims 1 to 3,
The contact portion of the positioning portion is formed in parallel to a direction intersecting the axis of the liquid replenishing container.