JP6155606B2 - Liquid container unit, liquid consuming device - Google Patents

Liquid container unit, liquid consuming device Download PDF

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Publication number
JP6155606B2
JP6155606B2 JP2012252657A JP2012252657A JP6155606B2 JP 6155606 B2 JP6155606 B2 JP 6155606B2 JP 2012252657 A JP2012252657 A JP 2012252657A JP 2012252657 A JP2012252657 A JP 2012252657A JP 6155606 B2 JP6155606 B2 JP 6155606B2
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Japan
Prior art keywords
liquid
ink
liquid container
portion
protective case
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JP2012252657A
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Japanese (ja)
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JP2014054827A5 (en
JP2014054827A (en
Inventor
慶吾 飯澤
慶吾 飯澤
小阿瀬 崇
崇 小阿瀬
聖真 工藤
聖真 工藤
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セイコーエプソン株式会社
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Priority to JP2012178826 priority Critical
Priority to JP2012178826 priority
Application filed by セイコーエプソン株式会社 filed Critical セイコーエプソン株式会社
Priority to JP2012252657A priority patent/JP6155606B2/en
Priority claimed from PCT/JP2013/004712 external-priority patent/WO2014024458A1/en
Priority claimed from CN 201320484652 external-priority patent/CN203567361U/en
Publication of JP2014054827A publication Critical patent/JP2014054827A/en
Publication of JP2014054827A5 publication Critical patent/JP2014054827A5/ja
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Publication of JP6155606B2 publication Critical patent/JP6155606B2/en
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Description

  The present invention relates to a liquid consuming device such as an ink jet printer, and a liquid container unit that contains a liquid consumed by the liquid consuming device.

  2. Description of the Related Art Conventionally, an ink jet printer (liquid consuming device) including an ink tank (liquid container) that stores ink (liquid) consumed by an ejection head (liquid consuming unit) is known (for example, Patent Document 1).

  The ink tank is assembled to the ink jet printer in a state of being accommodated in a tank case (protective case).

JP 2012-71585 A

By the way, since the conventional tank case is configured by combining a plurality of members, it takes time to assemble.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a liquid container unit that can improve assemblability, and a liquid consuming device including the liquid container unit.

  A liquid container unit that solves the above problems includes a liquid storage chamber that stores the liquid supplied to a liquid consumption unit that consumes the liquid via a tube, and the liquid stored in the liquid storage chamber toward the tube. A liquid container including a liquid outlet for deriving; a liquid inlet capable of injecting the liquid into the liquid container; and a protective case capable of protecting the liquid container from the outside; Is an integrally molded product.

According to this structure, the assembly | attachment property of a liquid container unit can be improved by making the protective case which covers a liquid container into an integrally molded product.
In the liquid container unit, the protective case is preferably a five-sided integrally molded product having an opening larger than the liquid container.

According to this configuration, the liquid container can be easily accommodated in the protective case from the opening formed in the protective case.
In the liquid container unit, it is preferable that the liquid container and the protective case are formed with a positioning portion that is unevenly fitted.

According to this configuration, since the liquid container and the protective case are positioned by the positioning portion, it is possible to reduce the possibility that the liquid container and the protective case are displaced.
In the liquid container unit, it is preferable that a plurality of the positioning portions are formed, and at least one of the positioning portions has a long hole in the horizontal direction.

  According to this configuration, since the liquid container and the protective case are positioned by fitting with the elongated holes, the liquid container and the protective case are positioned even when the molding accuracy of the liquid container and the protective case is low. be able to. Furthermore, since the long hole is long in the horizontal direction, it is possible to position the liquid container and the protective case while suppressing the inclination in the horizontal direction.

In the liquid container unit, the protective case preferably has a handle portion.
According to this configuration, since the protective case has the handle portion, the liquid container unit can be easily carried.

  In the liquid container unit, the protective case includes a locking portion that locks a fixing member when the protective case is fixed to an apparatus main body that stores the liquid consumption portion at both side positions of the handle portion. Preferably it is formed.

  According to this configuration, when the liquid container unit is fixed to the apparatus main body, the fixing member is locked by the locking portions formed on both sides of the handle portion, so that the user holds the hand on the handle portion. By applying, the apparatus main body and the liquid container unit can be stably carried.

  In the liquid container unit, the protective case includes a first engaging portion and a second engaging member that are elastically deformed and engaged with at least one of the protective case when the protective case is fixed to an apparatus main body that houses the liquid consuming portion. It is preferable that one of the joint portions is provided, and the other is provided in the apparatus main body.

  According to this configuration, when the protective case is fixed to the apparatus main body, at least one of the first engagement portion provided in one of the first and the second engagement portion provided in the other is elastically deformed, and the first engagement portion and The second engaging portion is in an engaged state. Therefore, the liquid container unit can be easily fixed to the apparatus main body.

  In the liquid container unit, the protective case includes at least one of a first engaging part and a second engaging part that are elastically deformed and engaged, and the other includes another liquid container. It is preferable that the other protective case to cover is provided.

  According to this configuration, by adhering at least one of the first engaging portion included in one protective case and the second engaging portion included in the other protective case to be elastically deformed and engaged with each other, adjacent protective cases are connected to each other. Can be connected and expanded.

A liquid consuming apparatus that solves the above problem includes the liquid consuming unit, the tube, and the liquid container unit having the above-described configuration.
According to this configuration, the same function and effect as those of the invention relating to the liquid container unit can be achieved.

  The liquid container unit includes a liquid storage chamber connected to a liquid consumption unit via a flow path, a liquid outlet port connected to the flow path, and a liquid injection port capable of injecting liquid into the liquid storage chamber. A liquid container unit, and a protective case that covers at least a part of the liquid container and that is fixed to an apparatus main body that accommodates the liquid consumption unit. There is an opening into which the liquid container can be inserted into a surface on the apparatus body side when fixed to the apparatus body, and the liquid container is housed in the protective case by insertion from the opening. In this state, it is fixed to the apparatus main body together with the protective case.

  According to this configuration, the liquid container is fixed to the apparatus main body together with the protective case in a state of being accommodated in the protective case through the opening, so that the assembling property of the liquid container unit can be improved.

In the liquid container unit, the protective case is preferably fixed to the apparatus main body in a state in which one or two or more liquid containers are accommodated.
According to this configuration, for example, the liquid container can be easily added by fixing the protective case containing two or more liquid containers to the apparatus main body.

  In the liquid container unit, two liquid containers adjacent to each other in a direction intersecting the longitudinal direction in a state where two or more liquid containers are accommodated in the protective case, the liquid inlet is in the longitudinal direction. Are preferably provided at positions offset from each other.

  According to this configuration, the liquid inlets in the two adjacent liquid containers are obstructed by the other liquid inlets as compared with the case where the liquid inlets are arranged side by side in the direction intersecting the longitudinal direction. Since it can suppress, the injection | pouring of the liquid to each liquid inlet can be performed easily. Further, since the injection ports are not arranged side by side, it is possible to prevent the liquid from being erroneously injected into another liquid injection port.

  The said liquid container unit WHEREIN: The said protective case has the receiving part cut out and formed from the said opening part side in the position corresponding to the said liquid inlet in the said liquid container accommodated inside. Is preferred.

  According to this configuration, even when the liquid inlet is provided at the tip of the cylindrical portion, for example, when the liquid container is stored in the protective case, the cylindrical portion can be inserted into the receiving portion from the opening side. Therefore, the liquid container can be smoothly accommodated in the protective case.

  In the liquid container unit, the protective case contains liquid other than the liquid container located closest to the opening among the liquid containers in a state where two or more liquid containers are housed therein. It is preferable that the receiving portion at a position corresponding to the liquid inlet in the body is formed to have a size overlapping with another liquid container adjacent to the liquid container on the opening side.

  According to this configuration, even in the case where the cylindrical portions provided with the liquid inlets at the two adjacent liquid containers at the tip end are arranged side by side in the horizontal direction intersecting the longitudinal direction, for example, It is possible to easily insert each cylindrical portion of the two liquid containers adjacent to each other from the opening side.

In the liquid container unit, it is preferable that the liquid container includes a connecting portion that enables connection in a state adjacent to another liquid container.
According to this configuration, two or more liquid containers are connected in advance so as to be adjacent to each other in the direction crossing the longitudinal direction, and then inserted into the protective case in a batch so that two The above liquid container can be easily accommodated in the protective case.

In the liquid container unit, it is preferable that the protective case is formed with a locking portion for locking the fixing member when the protective case is fixed to the apparatus main body.
According to this structure, the latching | locking part is formed in the protective case. Therefore, the liquid container unit can be easily fixed to the apparatus main body by the fixing member.

  In the liquid container unit, the protective case includes a first engaging portion and a second engaging portion that are engaged with each other by elastically deforming at least one of the protective case when the protective case is fixed to an apparatus main body that houses the liquid consuming portion. It is preferable that one of the joint portions is provided, and the other is provided in the apparatus main body.

  According to this configuration, when the protective case is fixed to the apparatus main body, at least one of the first engagement portion provided in one of the first and the second engagement portion provided in the other is elastically deformed, and the first engagement portion and The second engaging portion is in an engaged state. Therefore, the liquid container unit can be easily fixed to the apparatus main body.

  In the liquid container unit, the operation unit of the valve attached to the flow path is provided in the protective case in a state where two or more liquid containers are housed inside the two or more liquid containers. Are provided as a common operation section for the corresponding flow paths.

  According to this configuration, by operating the common operation unit, the valves of the respective flow paths corresponding to the two or more liquid containers can be collectively opened and closed, so that the number of parts can be reduced. .

A liquid consuming apparatus that solves the above problems includes the liquid consuming unit, the flow path, and the liquid container unit having the above-described configuration.
According to this configuration, the same operational effects as the liquid container unit can be obtained.

1 is a perspective view of a multifunction machine according to a first embodiment. The fracture | rupture perspective view of the attachment surface to which the tank unit in an apparatus main body is attached. The perspective view from the right front of a tank unit. The perspective view from the left front of a tank unit. FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. 3. FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. The perspective view from the right front of an ink tank. The perspective view from the right rear of an ink tank. The right side view of an ink tank. The top view of an ink tank. The left view of a tank case and a cover. The right view which fixed the tank case to the attachment surface. The bottom view of a tank case. The perspective view of the trough part in a tank unit. The perspective view from the lower left of a cover. The right view of the tank unit in which a cover is located in a concealment position. The right view of the tank unit in which a cover is located in a non-hiding position. FIG. 18 is a cross-sectional view taken along line 18-18 in FIG. 16. FIG. 19 is a cross-sectional view taken along line 19-19 in FIG. 17. The table | surface which shows the maximum fluctuation range of a liquid level, and the supply state of an ink. The left view of an ink tank. The schematic diagram of an ink tank. The perspective view of the recording device of a 2nd embodiment. The front view of a tank unit. The perspective view from the lower side of a tank unit. Sectional drawing of a tank unit. Sectional drawing of the tank unit of a modification. Sectional drawing of the tank unit of a modification. The fracture | rupture perspective view of the attachment surface in the apparatus main body of a modification. The perspective view from the left front of the tank unit of a modification. The plane sectional view of the tank unit of a modification.

(First embodiment)
Hereinafter, a first embodiment of a recording apparatus which is an example of a liquid consuming apparatus will be described with reference to the drawings.

As shown in FIG. 1, the multifunction machine 11 includes a recording device 12 and a scanner unit 14 mounted on an apparatus main body 13 of the recording device 12.
The recording device 12 can record on the paper P, while the scanner unit 14 can read an image or the like recorded on the document. In the present specification, the antigravity direction is referred to as an upward direction, and the gravity direction is referred to as a downward direction. In addition, a direction along the upward direction and the downward direction is illustrated as a vertical direction Z as an example of a vertical direction.

  The scanner unit 14 includes a scanner main body 15 that is partly rotatably connected to the apparatus main body 13 of the recording apparatus 12, and a transport unit 16 that is disposed above the scanner main body 15. The scanner main body 15 has a closed position that covers the upper side of the apparatus main body 13 with respect to the recording apparatus 12 and an open position that opens the upper side of the apparatus main body 13 via a rotation mechanism 17 such as a hinge provided on one end thereof. It is attached to be displaceable between. Further, the transport unit 16 is displaced between a position where the scanner body 15 is covered and a position where it is opened with respect to the scanner body 15 via a rotation mechanism 18 such as a hinge provided on one end thereof. It is attached as possible.

  In the following description, in the multifunction machine 11, the side on which the rotation mechanisms 17 and 18 are provided is referred to as a rear side or a back side, and the opposite side is referred to as a front side. A direction along the front direction and the rear direction is illustrated as a front-rear direction Y. The front end side of the scanner unit 14, the scanner main body 15, and the transport unit 16 can be turned upward.

  Furthermore, the direction along the right direction and the left direction when the rear direction is viewed from the front side (front view) is illustrated as the left-right direction X. Note that the left-right direction X, the front-rear direction Y, and the up-down direction Z intersect with each other (in the present embodiment, orthogonal). Therefore, the left-right direction X and the front-back direction Y in the present embodiment are directions along the horizontal direction.

  An operation panel 19 is disposed on the front side of the multifunction machine 11. The operation panel 19 includes a display unit (for example, a liquid crystal display) 20 for displaying a menu screen and the like, and various operation buttons 21 provided around the display unit 20.

  At the position below the operation panel 19 in the recording apparatus 12, a discharge port 22 for discharging the paper P from the inside of the apparatus main body 13 is opened. Further, a discharge tray 23 that can be pulled out is accommodated below the discharge port 22 in the recording apparatus 12.

  On the back side of the recording apparatus 12, a drawer-type medium support 24 having a substantially rectangular plate shape on which a plurality of sheets P can be stacked is attached. In addition, an inlet cover 25 is attached to the rear portion of the scanner main body 15 so as to be rotatable around a base end side (front end side in the present embodiment).

  A tank unit 27 as an example of a liquid container unit that stores ink (an example of liquid) is fixed to an attachment surface 13 a that is the right side surface outside the apparatus main body 13. Further, a scale accommodating portion 28 for accommodating the scale 28a is provided at a position between the apparatus main body 13 and the tank unit 27 and at a position behind the attachment surface 13a. The scale housing portion 28 has a mounting surface so as to form a rectangular groove shape that is long in the vertical direction Z with a depth in the left-right direction X corresponding to the thickness of the scale 28a and a width in the front-rear direction Y corresponding to the width of the scale 28a. A recess 13a is formed.

  On the other hand, inside the apparatus main body 13, there are provided a carriage 29 that is held so as to be capable of reciprocating in the left-right direction X, which is the main scanning direction, and a relay adapter 30 attached to the carriage 29. The relay adapter 30 is connected to the other end of a tube 31 as an example of a flexible flow path having one end connected to the tank unit 27. A liquid ejecting head 32 as an example of a liquid consuming unit capable of ejecting ink supplied from the tank unit 27 is supported on the lower surface side of the carriage 29.

  Accordingly, the ink stored in the tank unit 27 is supplied to the liquid ejecting head 32 via the tube 31 by utilizing the water head difference. Note that the tube 31 includes any of soft materials, hard materials, or both. The ink supplied to the liquid ejecting head 32 is ejected onto the paper P transported by a transport mechanism (not shown) to perform recording (an example of liquid consumption).

  As shown in FIG. 2, the 1st rib 34 and the 2nd rib 35 are formed in the attachment position which attaches the tank unit 27 in the attachment surface 13a so that it may protrude from the attachment surface 13a. The first rib 34 is formed along the outer shape of the tank unit 27. The second rib 35 is formed along the edge of the scale housing portion 28.

  The first rib 34 is positioned on the upper end side of the mounting surface 13a and extends along the front-rear direction Y. The first rib 34 is positioned on the front side of the upper rib portion 34a and extends along the vertical direction Z. The rib portion 34b has a curved rib portion 34c that connects the front end of the upper rib portion 34a and the upper end of the front rib portion 34b. Further, the first rib 34 is positioned on the rear side of the upper rib portion 34a and extends along the vertical direction Z, and is positioned on the lower end side of the mounting surface 13a and extends along the front-rear direction Y. And a lower rib portion 34e.

  The upper rib portion 34 a is formed in a shape in which a plurality of portions are bent so that the front side portion thereof is positioned below the rear side portion, and the rear end thereof is along the vertical direction Z of the second rib 35. It connects with the upper end of the extended front part. On the other hand, the end portion of the rear side portion extending along the vertical direction Z of the second rib 35 is spaced apart from the scale housing portion 28 and extends rearward and between the upper end of the rear rib portion 34d in the vertical direction Z. It is formed to have. Further, the first rib 34 is connected to the lower end of the rear rib portion 34d and the rear end of the lower rib portion 34e, whereas between the lower end of the front rib portion 34b and the front end of the lower rib portion 34e. It has an interval in the front-rear direction Y. Further, reinforcing rib portions 34f that protrude largely from the mounting surface 13a are formed at the front side position and the rear side position in the lower rib portion 34e, respectively, compared to the intermediate position of the lower rib portion 34e.

  Further, the first rib 34 includes at least one (five in the present embodiment) screw boss portion 37 into which a screw (see FIG. 12) 36 as an example of a fixing member can be screwed, and an upper rib portion 34a and The lower rib portion 34e is formed so as to protrude from the mounting surface 13a. That is, the screw boss portion 37 is formed at a front position, a rear position, and an intermediate position between the front position and the rear position of the upper rib portion 34a. Furthermore, the screw boss part 37 is formed in the reinforcing rib part 34f in the lower rib part 34e. Further, a boss portion 38 protruding from the mounting surface 13a is formed at a position on the rear side of the front rib portion 34b so as to have a space in the front-rear direction Y between the lower end of the front rib portion 34b.

  As shown in FIG. 2, an absorbent material 39 that is adjacent to the upper rib portion 34 a from the lower side and has a greater thickness in the left-right direction X than the upper rib portion 34 a is attached to the mounting surface 13 a. Yes. Furthermore, a substantially rectangular communication hole 40 for communicating the inside and outside of the apparatus main body 13 is formed at a position above the front end portion of the upper rib portion 34a on the mounting surface 13a. The tube 31 is inserted through the communication hole 40.

Hereinafter, the tank unit 27 shown in FIG. 3 will be described.
The left-right direction X, the front-rear direction Y, and the up-down direction Z in the tank unit 27 are based on the respective directions when the tank unit 27 is attached to the apparatus main body 13. That is, the tank unit 27 has a substantially rectangular parallelepiped shape larger in the front-rear direction Y than in the left-right direction X and the up-down direction Z.

  As shown in FIG. 3, the tank unit 27 includes a tank case 42 as an example of a protective case and an ink tank 43 as an example of a liquid container accommodated in the tank case 42. A substantially rectangular window portion 42 a that communicates the inside and outside of the tank case 42 is formed on a wall portion that forms an outer surface (in this case, a right side surface) along the front-rear direction Y and the vertical direction Z in the tank case 42. Therefore, when the ink tank 43 is accommodated in the tank case 42, a part of the ink tank 43 is visible from the outside of the tank case 42 through the window 42 a. The tank case 42 is chamfered around the window portion 42a. Furthermore, the tank unit 27 includes a cover 44 that slides in the front-rear direction Y with respect to the tank case 42 and a choke valve 45 that is accommodated in the tank case 42.

  A recess 46 is formed in the front surface of the tank case 42, and a valve lever 47 for operating the choke valve 45 is provided in the recess 46. The choke valve 45 crushes the tube 31 as the user operates the valve lever 47 and blocks the supply of ink from the ink tank 43 to the liquid ejecting head 32.

Next, the ink tank 43 will be described.
As shown in FIGS. 4 and 5, the ink tank 43 is a five-sided integral molded product, and the film 49 is attached to the tank opening 43 b, thereby providing an example of a liquid storage chamber that stores ink. An ink chamber 50 is formed. The ink chamber 50 has a substantially rectangular parallelepiped shape in which the width in the front-rear direction Y is larger than the height in the vertical direction Z and the depth in the left-right direction X.

  The ink tank 43 is made of a transparent or translucent resin, and the ink contained in the ink chamber 50 and the ink liquid level 51 are visible from the outside of the ink tank 43. Therefore, when the ink tank 43 is attached to the tank case 42, the ink stored in the ink chamber 50 can be visually recognized from the outside through the window portion 42a of the tank case 42.

  That is, as shown in FIGS. 3 and 5, the region corresponding to the window portion 42 a on the right side surface of the ink tank 43 is formed facing rightward (one direction) and accommodated in the ink chamber 50 from the rightward direction. It functions as a visual recognition surface 43a through which the liquid level 51 of the applied ink can be visually recognized. Note that the visual recognition surface 43a has a width in the front-rear direction Y larger than the height in the vertical direction Z.

  As shown in FIG. 6, an injection port 52 as an example of a liquid injection port capable of injecting ink into the ink chamber 50 is formed in the upper portion of the ink tank 43. The injection port 52 is located on one side (front side in the present embodiment) of the ink tank 43 from the midway position in the front-rear direction Y, and is one side (front side in the present embodiment) of the visual recognition surface 43a. ). Further, the injection port 52 protrudes toward the outer side of the ink chamber 50 and at the tip of the cylindrical portion 53 that protrudes in the upper right direction that is not orthogonal to the vertical direction Z and is higher than the horizontal direction. It is formed to open. Therefore, the end surface 52 a of the injection port 52 is non-orthogonal with respect to the vertical direction Z.

  Further, the direction in which the cylindrical portion 53 is inclined is a direction in which the tip (end surface 52a) of the cylindrical portion 53 is separated from the mounting surface 13a when the tank unit 27 is attached to the apparatus main body 13, and is a direction in which the visual recognition surface 43a is approached. It is.

  As shown in FIGS. 5 and 7, the injection port forming surface 54 in which the injection port 52 and the cylindrical portion 53 are formed in the upper part of the ink tank 43 is formed facing the upper right direction (one direction) intersecting the vertical direction Z. Has been. That is, the injection port forming surface 54 is inclined so as to be non-orthogonal with respect to the vertical direction Z so that the viewing surface 43a side is positioned lower than the position where the base end portion of the cylindrical portion 53 is formed. .

  In the present embodiment, the inclination of the inlet forming surface 54 with respect to the vertical direction Z and the inclination of the cylindrical portion 53 are the same. Further, at a position above the viewing surface 43a and between the injection port 52 and the viewing surface 43a, a damming convex portion 55 as an example of a plate-like damming portion and a protruding portion is formed at the inlet. It protrudes from the formation surface 54. The damming convex portion 55 is inclined in the same direction as the cylindrical portion 53 (injection port 52) and is orthogonal to the injection port forming surface 54. Further, the blocking convex portion 55 is formed so as to protrude from a position closer to the cylindrical portion 53 than the right end on the viewing surface 43a side of the injection port forming surface 54, and the right end of the injection port forming surface 54 is formed on the viewing surface 43a. The stepped portion 54a is located above the damming convex portion 55 and the viewing surface 43a.

  As shown in FIGS. 7 and 8, the injection port forming surfaces 54 formed in a downward slope shape from the injection port 52 toward the dam projections 55 in the upper part of the ink tank 43 are on both sides in the front-rear direction Y. It is in a lower position in the up-down direction Z than the adjacent part. That is, the injection port forming surface 54 is sandwiched between the front and rear sides. Therefore, when ink leaks from the injection port 52, leaked ink as an example of the leaked liquid flows so as to travel along the injection port forming surface 54. Therefore, the inlet forming surface 54 functions as a flow path for leaked ink, and the damming projection 55 is positioned on the flow path for leaked ink.

  In addition, rib portions 56 extending along the left-right direction X on the left side and the right side of the cylindrical portion 53 are formed on the injection port forming surface 54 so as to sandwich the cylindrical portion 53 from both sides in the left-right direction X. Has been. Therefore, the injection port forming surface 54 is divided into front and rear by the rib portion 56.

  Further, as shown in FIGS. 9 and 10, the blocking protrusion 55 and the stepped portion 54a have a width in the front-rear direction Y that intersects the lower right direction (an example of the leakage direction) that is the direction in which the leakage ink flows. 52 and the width of the cylindrical portion 53 are larger.

  As shown in FIGS. 5 and 6, a closing member 58 capable of closing the injection port 52 is detachably attached to the tip of the cylindrical portion 53. The closing member 58 is connected to the other end side of a tether 58 a having one end connected to the tank case 42. Further, the closing member 58 is formed with a knob 58b on the upper side and a tubular fitting part 58c for fitting with the injection port 52 on the lower side.

  As shown in FIG. 9, a discharge port as an example of a liquid discharge port for discharging the ink stored in the ink chamber 50 to the tube 31 side is located below the front surface (left side in FIG. 9) of the ink tank 43. 59 is formed. The outlet port 59 is a position on one side (front side in the present embodiment) of the ink tank 43 relative to the middle position in the front-rear direction Y, and is one side (front side in the present embodiment) of the visual recognition surface 43a. ). Further, the ink tank 43 is formed with an air intake port 60 for taking air into the ink chamber 50 from a position above the ink level 51 when ink is stored in the ink chamber 50. That is, the air intake 60 takes in the outside air from the position above the liquid level 51 into the ink chamber 50 when the ink stored in the ink chamber 50 is reduced as the ink is consumed by the liquid ejecting head 32.

  The ink tank 43 is formed with at least one (two in this embodiment) tank locking portion 62 that locks mounting screws 61 (see FIG. 4) that are mounted when the ink tank 43 is fixed to the tank case 42. Yes. The right side surface of the ink tank 43 is formed with positioning recesses 63a and 63b as an example of at least one (two in the present embodiment) positioning portions. Of the positioning recesses 63a and 63b, one (positioned in the front side in this embodiment) positioning recess 63a is formed in a long hole shape in the front-rear direction Y.

  Moreover, the lower limit scale 64a as an example of a scale and the upper limit scale 64b as an example of a scale are protrudingly formed by the front side position in the visual recognition surface 43a. The lower limit scale 64a and the upper limit scale 64b are formed on one side (the front side in the present embodiment) from the midway position in the front-rear direction Y on the viewing surface 43a. By the way, since the window part 42a does not conceal the upper limit scale 64b, the width in the vertical direction Z on the front side is larger than the width in the vertical direction Z on the rear side (see FIG. 3). Therefore, similarly to the window portion 42a, the visual recognition surface 43a also has a larger width in the vertical direction Z on the front side than the width in the vertical direction Z on the rear side.

  The lower limit scale 64 a is formed on the outlet 59 side of the midway position in the front-rear direction Y and on the upper side of the outlet 59. On the other hand, the upper limit scale 64 b is formed on the inlet 52 side of the midway position in the front-rear direction Y and below the inlet 52 and the air intake 60. The outlet 59 and the inlet 52 are formed on the same side (front side) in the front-rear direction Y. Therefore, the lower limit scale 64a is formed on the injection port 52 side with respect to the midway position in the front-rear direction Y and below the injection port 52 and the upper limit scale 64b. Therefore, a plurality of scales are formed on the viewing surface 43a on the same side in the front-rear direction Y with an interval in the vertical direction Z.

  The lower limit scale 64a is a scale indicating a lower limit amount that serves as a guide for injecting ink into the ink chamber 50. The upper limit scale 64 b is a scale indicating the upper limit amount of ink that is injected from the injection port 52 and accommodated in the ink chamber 50.

Next, the tank case 42 will be described.
As shown in FIGS. 4 and 11, the tank case 42 is a five-surface integral molded product having a case opening 42 b as an example of an opening on the left side which is the apparatus main body 13 side when fixed to the recording apparatus 12. is there. The tank case 42 is formed larger than the ink tank 43, and the case opening 42 b is larger than the ink tank 43 in the front-rear direction Y and the vertical direction Z.

  In addition, at least one of the mounting screws 61 can be screwed into a position corresponding to the tank locking portion 62 of the ink tank 43 inside the right wall portion of the tank case 42 where the window portion 42a is formed. Two (two in this embodiment) screwing portions 66 are formed. Further, at least one positioning convex portion 67a, 67b as an example of a positioning portion (two in this embodiment) is formed at a position corresponding to the positioning concave portions 63a, 63b of the ink tank 43.

  The tank case 42 includes at least case locking portions 68a to 68e as examples of locking portions for locking a screw 36 (see FIG. 12) inserted when the tank case 42 is fixed to the apparatus main body 13. One (five in this embodiment) is formed. That is, each of the first to fifth case locking portions 68a to 68e is formed corresponding to the screw boss portion 37 formed on the mounting surface 13a. An engaging portion 69 that can engage with the boss portion 38 is formed at a position corresponding to the boss portion 38 of the apparatus main body 13 in the tank case 42.

  Further, as shown in FIGS. 12 and 13, the tank case 42 is positioned below the window 42a and between the fourth case locking portion 68d and the fifth case locking portion 68e. The handle portion 71 is formed. Further, at the position where the fourth case locking portion 68d and the fifth case locking portion 68e are formed on the lower surface of the tank case 42, there is an engagement recess 72 that engages with the reinforcing rib portion 34f on the mounting surface 13a side. It is formed on the opening 42b side.

  As shown in FIGS. 12 and 14, a trough 42 c whose height in the vertical direction Z is one step lower than the upper surface is formed at the front position on the upper surface of the tank case 42. The first case locking portion 68a is formed so as to be located in the valley portion 42c. A covering portion 73 is formed around the first case locking portion 68a. The covering portion 73 covers the first case locking portion 68a from the rear and above and opens on the right side. Therefore, the screw 36 screwed into the first case locking portion 68 a is hidden by the covering portion 73 from the user who looks down on the tank unit 27.

  Furthermore, as shown in FIG. 14, the trough portion 42 c accepts the entry of the cylindrical portion 53 from the left side, which is the case opening 42 b side, when the ink tank 43 is attached to the tank case 42 into the trough portion 42 c. A receiving portion 74 having a U-shape in top view is formed. Further, in the valley portion 42c, the rear of the receiving portion 74 is formed one step higher than the position where the receiving portion 74 is formed, and a mounting portion 75 on which the closing member 58 can be mounted is formed. Yes. Therefore, the length of the anchoring portion 58a is set to such a length that the closing member 58 can be positioned alternatively to the cylindrical portion 53 and the placement portion 75.

  The mounting portion 75 includes a ring portion 75a formed in an annular shape whose inner peripheral shape is slightly larger than the outer peripheral shape of the fitting portion 58c of the closing member 58, and a fitting portion 58c positioned inside the ring portion 75a. The crus part 75b is slightly smaller than the inner peripheral shape. The crucible portion 75b has a shape in which vertical plate portions extending in the front-rear direction Y and the left-right direction X intersect each other in a cross shape, and on each side surface in the front-rear direction Y and the left-right direction X of each vertical plate portion. A projection 75 c having a substantially triangular shape in top view and extending along the vertical direction Z is formed so as to protrude from the side surface. Therefore, when the closing member 58 is placed on the placement portion 75, the fitting portion 58c is positioned inside the ring portion 75a, and the inner peripheral surface thereof is brought into contact with the protrusion 75c of the cruise portion 75b. Supported in state.

  As shown in FIGS. 12 and 14, the tank case 42 is formed with a pair of rail portions 76 a and 76 b as examples of support portions that support the cover 44 so as to be slidable in the front-rear direction Y. Has been. Further, a plurality of (three in the present embodiment) ridges 77 extending along the front-rear direction Y are formed between the pair of rail portions 76a and 76b. Of the pair of rail portions 76a and 76b, the rear end upper surface of the first rail portion 76a located on the right side and the rear end upper surface (not shown) of the second rail portion 76b located on the left side are chamfered.

  As shown in FIG. 12, a pair of stopper recesses 78a and 78b are formed in the first rail portion 76a with a space in the front-rear direction. The pair of stopper recesses 78a and 78b are chamfered on the inner side surface which is the other side of the front and rear inner surfaces. That is, the front first stopper recess 78a has a chamfered rear inner surface, and the rear second stopper recess 78b has a chamfered front inner surface.

  As shown in FIG. 15, the cover 44 includes an upper wall 44a, and a right wall 44b, a left wall 44c, and a rear wall 44d that are continuous with the upper wall 44a. The height of the right wall 44b and the rear wall 44d in the vertical direction Z is substantially the same, whereas the height of the left wall 44c is lower than the right wall 44b and the rear wall 44d.

  A pair of slidable contact portions 80 that engage with and slide in contact with the first rail portion 76a are formed on the inner surface, which is the surface on the left wall 44c side of the right wall 44b, with an interval in the front-rear direction Y. In addition, a pair of sliding contact portions 80 that engage with and slide in contact with the second rail portion 76b are formed on the inner surface of the left wall 44c on the right wall 44b side with an interval in the front-rear direction Y. . Note that the sliding contact portions 80 are alternately formed with their positions shifted in the front-rear direction Y. Further, of the pair of sliding contact portions 80 formed on the right wall 44b, a stopper convex portion 80a that can be engaged with the stopper concave portions 78a and 78b is formed on the sliding contact portion 80 positioned on the front side.

  The cover 44 is between the concealment position A shown in FIG. 16 where the stopper convex portion 80a engages with the stopper concave portion 78a and the non-concealment position B shown in FIG. 17 where the stopper convex portion 80a engages with the stopper concave portion 78b. Is slid in the front-rear direction Y.

  Specifically, as shown in FIGS. 16 and 18, when the stopper convex portion 80a is engaged with the first stopper concave portion 78a, the cover 44 is placed on the cylinder portion 53 in which the injection port 52 is formed. It is located at the concealment position A where the part 75 is concealed.

  On the other hand, as shown in FIGS. 17 and 19, when the stopper convex portion 80 a is engaged with the second stopper concave portion 78 b, the cover 44 is positioned at the non-hiding position B different from the hiding position A, and the injection port 52. The cylindrical part 53 and the mounting part 75 in which are formed appear.

  As shown in FIGS. 16 and 18, the size of the cover 44 in the front-rear direction Y is smaller than the size of the tank case 42, and when the cover 44 is positioned at the concealment position A, the cover 44 is above the tank case 42. Fits in. Further, when the ink tank 43 is fixed to the tank case 42, the cylindrical portion 53 is positioned so that the end surface 52 a of the injection port 52 is higher than the receiving portion 74 of the tank case 42, and the closed portion fitted to the cylindrical portion 53. The member 58 is formed so that the height thereof is lower than that of the cover 44 positioned at the concealment position A.

  Further, as shown in FIGS. 12, 16, and 17, the screws 36 screwed into the second case locking portion 68b and the third case locking portion 68c are concealed by the cover 44 attached to the tank case 42. It is. Further, the screw 36 screwed into the fourth case locking portion 68d and the fifth case locking portion 68e is hidden from the user who looks down on the unit by the tank unit 27 itself.

  Further, as shown in FIG. 3, the upper wall 44a of the cover 44 is formed with a non-slip portion 82 that protrudes upward so that the overall shape is substantially triangular. Further, at the position behind the anti-slip portion 82 in the cover 44, characters, diagrams, and the like indicating the type of ink stored in the tank unit 27, a warning for injecting different types of ink, etc., an ink injection method A label 83 on which is written or a caution is attached. A similar label 83 is concealed by the cover 44 when the cover 44 is located at the concealment position A on the right side surface and front concave portion 46 of the tank case 42 and the attachment surface 13a, while the cover 44 is not concealed. It is also attached to the part that appears when it is located at B.

Next, the maximum fluctuation range of the ink liquid level 51 and the state of ink supply from the ink tank 43 to the liquid ejecting head 32 will be described.
By the way, the recording apparatus 12 according to the present embodiment supplies the ink contained in the ink chamber 50 to the liquid ejecting head 32 using the water head difference. Therefore, if the liquid level 51 fluctuates greatly in the vertical direction Z, ink cannot be supplied satisfactorily from the ink tank 43 to the liquid ejecting head 32. Specifically, when the liquid ejecting head 32 is located at a position considerably lower than the liquid level 51, there is a possibility that ink leaks from the liquid ejecting head 32, whereas the liquid ejecting head 32 is located above the liquid level 51. If it is at a considerably high position, ink may not be supplied to the liquid ejecting head 32.

  As shown in FIG. 20, in the recording apparatus 12 according to the present embodiment, when the maximum fluctuation width in the vertical direction Z of the ink liquid surface 51 is 75 mm or more, the ink can be satisfactorily supplied to the liquid ejecting head 32. There wasn't. That is, for example, when the liquid ejecting head 32 is arranged in accordance with the case where the maximum amount of ink is accommodated in the ink chamber 50, when the ink is consumed and the liquid level 51 is lowered, the ink remains in the ink chamber 50. Also, the ink could not be supplied to the liquid ejecting head 32. Further, for example, if the liquid ejecting head 32 is arranged in accordance with the consumption of the ink in the ink chamber 50 and the liquid level 51 is lowered, the ink leaks from the liquid ejecting head 32 when the maximum amount of ink is accommodated. It was.

  On the other hand, if the maximum fluctuation width in the vertical direction Z of the ink liquid surface 51 is 70 mm or less, even when the maximum amount of ink is stored in the ink chamber 50, or when the ink liquid surface 51 in the ink chamber 50 is lowered. However, the ink could be supplied to the liquid ejecting head 32.

  However, when the maximum fluctuation range of the liquid level 51 is 70 mm, good supply may not be possible due to an assembly error or a manufacturing error between the liquid ejecting head 32 and the ink tank 43. Therefore, when the maximum fluctuation width is 55 mm or less, the ink can be satisfactorily supplied to the liquid ejecting head 32 even when there are some assembly errors and manufacturing errors. Further, when the maximum fluctuation width is 40 mm or less, for example, even when the installation surface of the recording apparatus 12 is slightly inclined, the ink can be satisfactorily supplied from the ink tank 43 to the liquid ejecting head 32.

  Therefore, as shown in FIG. 21, in the present embodiment, the height h1 in the vertical direction Z from the lower limit scale 64a to the upper limit scale 64b is set to 40 mm or less. That is, the user injects ink from the inlet 52 so that the ink level 51 rises to the upper limit scale 64b when the ink level 51 drops to the lower limit scale 64a. Accordingly, since the fluctuation range of the ink liquid level 51 when the liquid ejecting head 32 is normally used is equal to the height h1, the ink in the ink chamber 50 is good for the liquid ejecting head 32 when the height h1 is 40 mm or less. To be supplied.

  Further, the height h2 in the vertical direction Z from the lower end (an example of the bottom surface) of the opening of the outlet 59 formed in the ink chamber 50 to the upper limit scale 64b is set to 55 mm or less. Therefore, for example, even when the user continues printing without noticing that the ink level 51 has decreased to the lower limit scale 64a, the liquid ejecting head 32 remains when ink remains in the ink chamber 50. Ink is supplied.

  Furthermore, the height h3 in the vertical direction Z from the lower end of the opening of the outlet port 59 formed in the ink chamber 50 to the end surface 52a of the injection port 52 is set to 70 mm or less. That is, the height h3 corresponds to the maximum fluctuation range of the ink stored in the ink tank 43. Therefore, for example, even when the user overflows the ink from the injection port 52 with the injection of the ink into the ink chamber 50, the leakage of the ink from the liquid ejecting head 32 is suppressed.

Next, the shape of the ink chamber 50 will be described.
If the height of the ink chamber 50 in the vertical direction Z is limited, ink can be supplied satisfactorily to the liquid ejecting head 32, but the amount of ink that can be stored in the ink chamber 50 is reduced. Therefore, the ink tank 43 of the present embodiment secures an amount of ink that can be accommodated in the ink chamber 50 by increasing the width in the front-rear direction Y and increasing the horizontal sectional area.

  Specifically, as shown in FIG. 22, the size of the ink chamber 50 in the left-right direction X is the depth D, the size in the front-rear direction Y is the width W, and the size in the up-down direction Z is the height H. In the ink chamber 50, when the ink corresponding to 5% of the amount that can be stored in the ink chamber 50 is derived from the outlet 59, the fluctuation range of the ink liquid level 51 in the ink chamber 50 is changed to the ink chamber 50. It has a region (for example, a region having at least a height h1 in FIG. 21) that is 5% or less of the cube root of the accommodation amount. In the following description, the condition relating to the shape of the ink chamber 50 is referred to as a shape condition, and the capacity that can be accommodated in the ink chamber 50 is referred to as a maximum capacity.

For example, when the ink chamber 50 has a cubic shape in which the depth D in the left-right direction X, the width W in the front-rear direction Y, and the height H in the up-down direction Z are equal (D = W = H), the ink liquid surface 51. Satisfies the shape condition in any position. Specifically, in the case of a cubic shape, the fluctuation range (0.05 × D × W × H / (D × W)) of the liquid level 51 when 5% of the maximum capacity is derived is the maximum. It becomes equal to 5% (0.05 × (D × W × H) 1/3 ) of the cube root of the accommodation amount.

  Therefore, the shape condition is satisfied if the shape is a rectangular parallelepiped longer in the front-rear direction Y or the left-right direction X than the cubic shape. That is, when the height H of the ink chamber 50 is smaller than the depth D and the width W, the shape condition is satisfied. Specifically, the shape condition is satisfied if the bottom area (D × W) of the ink chamber or the area of the liquid surface 51 (horizontal cross-sectional area of the ink chamber 50) is equal to or higher than the square of the height H. However, the shape condition may be satisfied even when the height H is larger than either the depth D or the width W. For example, even when the depth D is half of the height H, the shape condition is satisfied if the width W is twice or more the height H.

Next, the fluctuation range of the ink liquid level 51 in the ink chamber 50 when ink equivalent to 5% of the maximum capacity is derived will be described.
The minimum fluctuation width (hereinafter simply referred to as “minimum fluctuation width”) of the ink liquid level 51 in the ink chamber 50 when ink equivalent to 5% of the maximum storage capacity is derived is the third root of the maximum storage capacity. If it is 6% or more, it is not possible to ensure a sufficient amount of ink that can be stored in the ink chamber 50.

  On the other hand, when the minimum fluctuation range is 5% or less of the third root of the maximum capacity, the ink can be sufficiently stored in the ink chamber 50, but the minimum fluctuation width is the third root of the maximum capacity. Is more preferably 4% or less.

Hereinafter, an operation when the ink tank 43 is fixed to the apparatus main body 13 will be described.
As shown in FIG. 4, first, the ink tank 43 is inserted from the case opening 42b of the tank case 42, and the positioning convex portions 67a and 67b and the positioning concave portions 63a and 63b are fitted into the concave and convex portions for alignment. Further, the mounting screw 61 is screwed into the tank locking portion 62 and the screwing portion 66 to fix the ink tank 43 to the tank case 42. In other words, the tank case 42 covers the ink tank 43 from the outside to accommodate the ink tank 43 and protect the ink tank 43.

  Subsequently, as shown in FIG. 12, the tank case 42 to which the ink tank 43 is fixed is aligned with the mounting surface 13a. That is, the tank case 42 surrounds the first rib 34, engages the boss portion 38 and the engaging portion 69, and further engages the reinforcing rib portion 34 f and the engaging recess 72.

  As shown in FIG. 6, when the tank case 42 to which the ink tank 43 is attached is aligned with the attachment surface 13 a, the absorbent 39 is located at a position between the injection port 52 and the apparatus main body 13. The absorbent 39 has a greater thickness in the left-right direction X than the upper rib portion 34a. Therefore, the absorber 39 interposed between the apparatus main body 13 and the ink tank 43 is compressed by being sandwiched between the apparatus main body 13 and the ink tank 43.

  Furthermore, as shown in FIG. 12, in the state where the tank case 42 is aligned with the mounting surface 13a, the case locking portions 68a to 68e and the screw boss portion 37 are aligned. Therefore, when the screws 36 are screwed into the case locking portions 68a to 68e, the case locking portions 68a to 68e and the screw boss portions 37 are screwed, and the tank case 42 and the apparatus main body 13 are fixed.

  When the tank case 42 is attached to the apparatus main body 13, the case opening 42 b of the tank case 42 is covered with the apparatus main body 13. Therefore, the apparatus main body 13 and the tank case 42 function as an example of a protective member that covers and protects the ink tank 43 from the outside, and the liquid supply system includes the apparatus main body 13, the tank case 42, the ink tank 43, and the absorbent 39. An example is configured.

  Subsequently, in a state where the tank case 42 is fixed to the apparatus main body 13, the cover 44 is mounted from the rear of the tank case 42 so that the rail portions 76 a and 76 b and the sliding contact portion 80 are engaged.

  As shown in FIGS. 17 and 19, the cover 44 is positioned at the non-hiding position B with the stopper convex portion 80 a first engaging with the second stopper concave portion 78 b located on the rear side. When the cover 44 positioned at the non-hiding position B is further pushed forward, the stopper convex portion 80a and the second stopper are arranged so that the stopper convex portion 80a rides on the chamfered front side surface of the second stopper concave portion 78b. The engagement of the recess 78b is released, and the cover 44 moves forward.

  Then, as shown in FIGS. 16 and 18, the cover 44 is positioned at the concealment position A with the stopper convex portion 80 a engaging the first stopper concave portion 78 a. The first stopper recess 78a has a chamfered rear inner surface, and therefore, when the cover 44 positioned at the concealment position A is pushed rearward, the stopper protrusion 80a becomes the first stopper recess 78a. The stopper convex portion 80a and the first stopper concave portion 78a are disengaged so as to ride on the chamfered rear inner surface, and the cover 44 moves rearward.

Next, the operation when ink is injected into the ink tank 43 will be described.
Now, when the liquid level 51 of the ink accommodated in the ink tank 43 falls to the lower limit scale 64a, the user slides the cover 44 backward from the concealment position A to the non-concealment position B (see FIG. 17). Then, the closing member 58 and the placement portion 75 that are hidden by the cover 44 located at the hidden position A appear.

  Further, the user moves the closing member 58 fitted to the tip of the cylindrical portion 53 to the placement portion 75 and injects ink from the injection port 52. The injected ink can be confirmed from the window 42 a of the tank case 42.

  By the way, when ink is spilled as the ink is injected, the leaked ink flows along the injection port forming surface 54 in the direction away from the apparatus main body 13 and is blocked by the blocking protrusion 55. Even if the amount of leaked ink is large and should exceed the blocking protrusion 55, the leaked ink spreads along the stepped portion 54a to change the leaking direction. Further, for example, even when the ink has flown toward the apparatus main body 13, the leaked ink is absorbed by the absorbent material 39 interposed between the apparatus main body 13 and the tank unit 27.

  When the liquid level 51 rises to the upper limit scale 64b as the ink is injected, the user finishes the ink injection, returns the closing member 58 placed on the placement portion 75 to the cylindrical portion 53, and covers the cover. 44 is slid forward and moved to the concealment position A.

According to the first embodiment, the following effects can be obtained.
(1) Ink can be injected into the ink chamber 50 from the injection port 52 formed in the ink tank 43. Further, since the tank unit 27 is fixed to the apparatus main body 13, it is possible to reduce the possibility that the tank unit 27 is detached from the apparatus main body 13 when the user carries the recording device 12. Therefore, the transportability of the recording apparatus 12 including the tank unit 27 that can inject ink can be improved.

  (2) Since the cover 44 is provided so as to be slidable, for example, the space area in which the cover 44 is displaced is made smaller than when the cover is rotated about the axis to displace the concealment position and the non-concealment position. Can do. Therefore, the cover 44 can be opened and closed even when the recording apparatus 12 is installed in a narrow place.

  (3) When the ink is injected into the ink chamber 50 through the injection port 52, the closing member 58 can be placed on the placement portion 75. Therefore, even when ink adheres to the closing member 58, the possibility of ink adhering to portions other than the placement portion 75 can be reduced.

  (4) Since the injection port 52 is formed in the cylindrical portion 53 protruding toward the outside of the ink chamber 50, when the ink is injected into the ink chamber 50, members located around the cylindrical portion 53 are injected. It is possible to reduce the possibility of impinging on the ink injection by contacting an ink container (such as a large ink container). Furthermore, since the cylinder part 53 protrudes toward the upper right direction that is not orthogonal to the vertical direction Z, the user can easily confirm the state of injecting ink.

(5) The ink leaking from the injection port 52 can be blocked by the blocking convex portion 55 provided on the injection port forming surface 54 that becomes the flow path of the leaked ink.
(6) By suppressing the fluctuation range of the liquid level 51 with respect to the amount of ink derived from the ink chamber 50, the change in pressure applied to the ink supplied to the liquid ejecting head 32 can be reduced. Therefore, the ink stored in the ink chamber 50 can be stably supplied to the liquid ejecting head 32 side.

  (7) Since the ink chamber 50 has a width in the front-rear direction Y that intersects the vertical direction Z larger than the height in the vertical direction Z, the ink chamber 50 is derived as compared with the case where the width in the front-rear direction Y is smaller than the height in the vertical direction Z. The fluctuation of the liquid level 51 with respect to the amount of ink to be performed can be reduced.

  (8) By setting the height h3 from the outlet 59 to the inlet 52 to 70 mm or less, the height from the outlet 59 to the inlet 52 can be suppressed. Therefore, fluctuations in the vertical direction Z of the liquid level 51 of the ink stored in the ink chamber 50 can be reduced.

  (9) By setting the height h2 from the outlet 59 to the upper limit scale 64b to 55 mm or less, the range in which the liquid level 51 is located in the ink chamber 50 can be 55 mm or less. Therefore, the fluctuation in the vertical direction Z of the liquid level 51 of the ink stored in the ink chamber 50 can be further reduced.

  (10) The user can use the lower limit scale 64 a as a guide for injecting ink into the ink chamber 50. Furthermore, by setting the height h1 from the lower limit scale 64a to the upper limit scale 64b to 40 mm or less, the range in which the liquid level 51 is positioned in the ink chamber 50 can be set to 40 mm or less. Therefore, the fluctuation in the vertical direction Z of the liquid level 51 of the ink stored in the ink chamber 50 can be further reduced.

  (11) The lower limit scale 64a and the upper limit scale 64b are formed on the front side, that is, one side of the visual recognition surface 43a with respect to the midway position in the front-rear direction Y. Therefore, unlike the case where the ink tanks 43 are inclined, the scales 64a, 64a, 64b in the up-down direction Z are determined for each position at a plurality of different positions in the front-rear direction Y, even when the ink tank 43 is installed inclined. The possibility that the position of the liquid surface 51 with respect to 64b is different can be reduced. Therefore, the user can easily visually recognize the amount of ink stored in the ink tank 43.

  (12) By forming the lower limit scale 64a on the outlet 59 side, the ink level 51 located near the outlet 59 and the lower limit 64a can be compared. Therefore, when the user uses the lower limit scale 64 a as a guide for injecting ink into the ink chamber 50, the ink liquid level 51 is positioned below the outlet port 59 in the vertical direction Z, and air is supplied from the outlet port 59. It is possible to reduce the risk of being damaged.

  (13) Since the lower limit scale 64a is formed on the same side as the injection port 52 and is formed at a position below the injection port 52, the ink injected when the ink is injected from the injection port 52. Can be easily confirmed.

  (14) In the ink tank 43 having the viewing surface 43a whose width in the front-rear direction Y is larger than the height in the up-down direction Z, when the ink tank 43 is installed in an inclined state, the ink tank 43 is at a position different from the front-rear direction Y. The difference in the position of the liquid surface 51 with respect to the scales 64a and 64b in the vertical direction Z tends to be large. In this respect, since the scales 64a and 64b are formed in front of the intermediate position in the horizontal direction, the amount of ink can be easily visually recognized even when the ink tank 43 is installed at an inclination.

  (15) Since the upper limit scale 64b is formed on the injection port 52 side, the liquid level 51 of the injected ink and the upper limit scale 64b are compared even when, for example, the ink tank 43 is inclined. As a result, the possibility of ink overflowing from the injection port 52 can be reduced.

(16) Since the viewing surface 43a is formed facing the right direction intersecting with the vertical direction Z, the ink liquid surface 51 and the scales 64a and 64b can be visually recognized and compared from one direction.
(17) Since the plurality of scales 64a and 64b are formed on the same side, the remaining amount of ink stored in the ink chamber 50 can be easily obtained by comparing the ink liquid level 51 with the scales 64a and 64b. Can be visually recognized.

  (18) Since the end surface 52a of the injection port 52 is non-orthogonal with respect to the vertical direction Z, ink can be injected more easily than when the end surface 52a of the injection port 52 is orthogonal to the vertical direction Z. .

  (19) When the ink tank 43 is fixed to the apparatus main body 13, the cylinder portion 53 is formed so as to be inclined in a direction away from the apparatus main body 13, so that ink can be injected more easily.

  (20) Since the injection port forming surface 54 is non-orthogonal with respect to the vertical direction Z, even if ink leaks from the injection port 52, the ink is allowed to flow along the injection port forming surface 54. Can do. Therefore, it is possible to reduce the possibility of ink flowing in a direction not intended by the user.

  (21) Since the inclination of the cylindrical portion 53 and the injection port forming surface 54 with respect to the vertical direction Z is the same, for example, when the ink tank 43 is injection-molded, the cylindrical portion 53 and the injection port forming surface 54 are the same. Can be molded with a mold.

  (22) The leaked ink leaked from the injection port 52 is blocked by the blocking convex portion 55 located on the injection port forming surface 54 that becomes the flow path of the leaked ink. Therefore, it is possible to reduce the risk of the surroundings being contaminated by the leaked ink.

(23) Since the damming convex portion 55 is positioned above the viewing surface 43a, the possibility that the viewing surface 43a is contaminated by the leaked ink can be reduced.
(24) Even when the leaked ink exceeds the damming convex portion 55, the possibility that the leaked ink flows to the viewing surface 43a by the stepped portion 54a can be reduced.

  (25) Since the width in the front-rear direction Y of the blocking projection 55 is larger than the width of the injection port 52, the blocking projection 55 blocks the ink injected from the injection port 52 in any direction. be able to.

  (26) The injection port forming surface 54 can be used as a flow path for leaked ink. Therefore, by receiving the leaked ink at the injection port forming surface 54, it is possible to reduce the possibility that the portion other than the injection port forming surface 54 is contaminated with ink.

(27) The leakage ink can be blocked by the blocking protrusion 55 protruding from the injection port forming surface 54.
(28) Since the injection port 52 and the blocking protrusion 55 are formed on the injection port formation surface 54 facing in one direction, the direction of leakage ink flow can be set in one direction.

  (29) Since the respective inclinations of the injection port 52 and the blocking projection 55 with respect to the vertical direction Z are the same, for example, when the ink tank 43 is injection-molded, the injection port 52 and the blocking projection 55 are the same. Can be molded with a mold.

  (30) By interposing the absorbent 39 between the apparatus main body 13 and the ink tank 43, even if leaked ink leaking from the injection port 52 enters between the apparatus main body 13 and the ink tank 43, the leakage occurs. Ink can be absorbed by the absorbent 39. Therefore, it is possible to reduce the risk of the surroundings being contaminated by the leaked ink.

  (31) By providing the absorbent 39 between the injection port 52 where the ink may leak and the apparatus main body 13, the leaked ink leaking from the injection port 52 can be efficiently absorbed by the absorbent 39.

  (32) The gap between the apparatus main body 13 and the ink tank 43 can be filled with the absorber 39. Accordingly, it is possible to reduce the possibility of foreign matter entering the gap between the apparatus main body 13 and the ink tank 43.

(33) By making the tank case 42 covering the ink tank 43 into an integrally molded product, the assembling property of the tank unit 27 can be improved.
(34) The ink tank 43 can be easily accommodated in the tank case 42 from the case opening 42b formed in the tank case 42.

  (35) Since the ink tank 43 and the tank case 42 are positioned by the positioning concave portions 63a and 63b and the positioning convex portions 67a and 67b, the possibility that the ink tank 43 and the tank case 42 are displaced can be reduced.

  (36) Since the ink tank 43 and the tank case 42 are positioned by fitting the concave and convex portions 63a with the elongated holes, the ink tank 43 and the tank case are formed even when the molding accuracy of the ink tank 43 and the tank case 42 is low. 42 can be positioned. Furthermore, since the positioning recess 63a is long in the front-rear direction Y, it is possible to position the ink tank 43 and the tank case 42 while suppressing the horizontal inclination.

(37) Since the tank case 42 has the handle portion 71, the tank unit 27 can be easily carried.
(38) When the tank unit 27 is fixed to the apparatus main body 13, the screw 36 is locked by the fourth case locking portion 68d and the fifth case locking portion 68e formed on both sides of the handle portion 71. Therefore, the user can carry the apparatus main body 13 and the tank unit 27 stably by placing a hand on the handle portion 71.

  (39) Since the size of the cover 44 is smaller than the size of the tank case 42, the cover 44 can be stored on the tank case 42. Therefore, even when the tank unit 27 includes the cover 44, the possibility of the cover 44 being caught during transportation can be reduced.

  (40) By increasing the horizontal sectional area of the ink chamber 50, the fluctuation range of the liquid level 51 with respect to the amount of ink derived from the outlet 59 can be reduced. In other words, since more ink can be derived by the small fluctuation of the liquid level 51, the ink stored in the ink chamber 50 can be stably supplied to the liquid ejecting head 32 side.

  (41) Since the tank unit 27 is fixed to the apparatus main body 13, the tank unit 27 can be reduced in size as compared with a self-standing tank unit that is detachably provided to the apparatus main body 13. Furthermore, the tank unit 27 and the apparatus main body 13 can have a sense of unity.

  (42) Since the cover 44 moves between the concealment position A and the non-concealment position B while being supported by the tank case 42, the possibility of the cover 44 being detached during the transportation of the multifunction machine 11 is reduced. Can do.

  (43) The upper ends of the rear ends of the rail portions 76a and 76b are chamfered, and the sliding contact portions 80 of the cover 44 are alternately formed in the front-rear direction. Therefore, the cover 44 can be easily attached to the tank case 42.

  (44) Since the tank case 42 is chamfered around the window portion 42a, the entire viewing surface 43a can be easily visually recognized from the outside through the window portion 42a even in a lateral direction not facing the window portion 42a. can do.

  (45) Since the valve lever 47 is provided in the recess 46, when carrying the multifunction machine 11 to which the tank unit 27 is fixed, an erroneous operation due to the valve lever 47 hitting a surrounding object can be suppressed.

(46) Since the tank case 42 is an integrally molded product and has no seam, it is possible to reduce the risk that an ink leakage channel may be inadvertently formed.
(47) By interposing the absorbing material 39 between the apparatus main body 13 and the ink tank 43, the film 49 can be protected by the absorbing material 39.

  (48) Even when ink is attached to the closing member 58 placed on the placing portion 75, the ink has dripped from the closing member 58 because the closing member 58 is placed inside the ring portion 75a. Even in this case, the ring portion 75a can be prevented from spreading to the surroundings.

(49) By covering the air intake port 60 with the tank case 42, it is possible to reduce the possibility that the user will inadvertently pour ink into the air intake port 60.
(50) It is necessary to manage the water head position of the liquid surface 51 of the ink in the ink tank 43 with respect to the nozzle surface of the liquid ejecting head 32 on which the nozzle for ejecting ink is formed. In that respect, the ink tank 43 is attached to the apparatus main body 13 via a tank case 42 that is integrally formed including the positioning convex portions 67a and 67b. That is, the ink tank 43 can be attached to the apparatus main body 13 while maintaining the positional relationship between the ink tank 43 and the liquid ejecting head 32 with higher accuracy than when the tank case 42 is formed of a combination of a plurality of members.

  (51) Since the ink tank 43 is fixed to the apparatus main body 13 together with the tank case 42 while being accommodated in the tank case 42 through the case opening 42b, the assembling property of the tank unit 27 can be improved. .

(52) Since the tank case 42 is formed with the case locking portions 68 a to 68 e, the tank unit 27 can be easily fixed to the apparatus main body 13 with the screw 36.
(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to the drawings. The second embodiment is different from the first embodiment in that the scanner unit 14 is not provided. And since it is substantially the same as 1st Embodiment in another point, the overlapping description is abbreviate | omitted by attaching | subjecting the same code | symbol about the same structure.

  As shown in FIG. 23, a recording apparatus 85 as an example of a liquid consuming apparatus includes an operation button 86 on the front side. A discharge port 88 for discharging the paper P from the apparatus main body 87 is opened at a position below the operation button 86 in the recording apparatus 85. Further, below the discharge port 88 in the recording apparatus 12, a discharge tray 89 that can be pulled out is accommodated. Further, on the back side of the recording apparatus 85, a rotating medium support 90 capable of stacking a plurality of sheets P is attached.

  Further, as shown in FIGS. 23 and 24, a wedge-shaped projecting portion 87b as viewed from above is integrally formed at the front side position of the attachment surface 87a to which the tank unit 27 is attached in the apparatus main body 87. The overhang portion 87b is curved from the top to the front so as to fill the gap between the apparatus main body 87 and the tank unit 27, and the front surface of the overhang portion 87b and the front surface of the tank unit 27 face each other. Become one.

  Further, as shown in FIGS. 25 and 26, the tank unit 27 is fixed to the apparatus main body 87 via a spacer 91 having an L-shaped cross section that fills a gap between the apparatus main body 87 and the lower portion. The spacer 91 is provided in the front-rear direction Y from the overhanging portion 87b to the engaging recess 72 corresponding to the fourth case locking portion 68d. The spacer 91 engages with the engagement recess 72 in which the fourth case locking portion 68d is formed.

Next, an operation when the tank unit 27 is attached to the recording device 85 will be described.
As shown in FIG. 25, first, the tank case 42 to which the ink tank 43 is fixed is aligned with the mounting surface 87a with the spacer 91 interposed. At this time, the spacer 91 is aligned by engaging the engaging portion (not shown) with the boss portion 38 and engaging with the engaging recess 72 formed with the fourth case locking portion 68d.

Then, with the tank case 42 aligned with the mounting surface 87a, the screws 36 are screwed onto the case locking portions 68a to 68e to fix the tank case 42 and the apparatus main body 87 together.
Subsequently, in a state where the tank case 42 is fixed to the apparatus main body 87, the cover 44 is mounted from the rear side of the tank case 42 so that the rail portions 76 a and 76 b and the sliding contact portion 80 are engaged.

According to the second embodiment, the following effects can be obtained.
(53) The tank unit 27 can be attached to different recording devices 12 and 85. That is, the tank unit 27 can be shared by a plurality of types of recording devices 12 and 85.

In addition, you may change the said embodiment as follows.
In each of the above embodiments, the size of the cover 44 may be smaller than the size of the ink tank 43. By reducing the cover 44, the cover 44 can be accommodated on the ink tank 43. Therefore, even when the tank unit 27 includes the cover 44, the possibility of the cover 44 being caught during transportation can be reduced.

-In each said embodiment, it is good also as a structure which does not provide the blocking convex part 55. FIG.
In each of the above embodiments, the cylinder portion 53 may not be provided. That is, the end surface 52a of the injection port 52 and the injection port formation surface 54 may be made to coincide.

  In each of the above embodiments, the cylindrical portion 53 may be formed so as to protrude upward along the vertical direction Z. In this case, as shown in FIG. 27, for example, it is preferable to attach a cylindrical attachment 93 having a curved middle position in the vertical direction Z to the cylindrical portion 94. By mounting the attachment 93, the hole formed in the attachment 93 can be used as the injection port 52, and the end surface 52a of the injection port 52 can be made non-orthogonal with respect to the vertical direction Z (modified example). . Further, the attachment 93 may be deformable.

  In each of the above embodiments, the direction in which the cylindrical portion 53 protrudes can be arbitrarily set. For example, the cylindrical portion 53 may be protruded in the upper left direction on the apparatus main body 13 side when fixed to the apparatus main body 13. Moreover, you may make the cylinder part 53 protrude toward the front upper direction.

  In each of the above embodiments, the tank case 42 may be configured without the placement portion 75. Further, the mounting portion 75 may be provided not on the tank case 42 but on the ink tank 43 and the cover 44. Further, since the tank unit 27 is fixed to the apparatus main body 13, for example, a mounting portion 75 may be provided on the mounting surface 13a so that the closing member 58 can be mounted. Further, the placement portion 75 may be formed at a position that can be seen by a user who looks down regardless of the position of the cover 44.

  In each of the above embodiments, the cover 44 may be moved between a concealment position that convolves around the axis to conceal the injection port 52 and a non-concealment position different from the concealment position. For example, the shaft may be provided along the left-right direction X or the front-back direction Y, and the cover 44 positioned at the concealment position may be rotated upward to be positioned at the non-concealment position. Further, the shaft may be provided along the up-down direction Z, and the cover 44 may be rotated along the left-right direction X and the front-rear direction Y.

In each of the above embodiments, the tank unit 27 may be configured without the cover 44.
In each of the above embodiments, the height h1 in the vertical direction Z from the lower limit scale 64a to the upper limit scale 64b may be greater than 40 mm. If the tank unit 27 is manufactured and assembled with high accuracy, the recording devices 12 and 85 are installed horizontally, and the fluctuation of the liquid level 51 is kept between the lower limit scale 64a and the upper limit scale 64b, the liquid can be liquid even if the height h1 is 70 mm. Ink can be satisfactorily supplied to the ejection head 32.

  In each of the above embodiments, the height h2 in the vertical direction Z from the outlet 59 to the upper limit scale 64b may be greater than 55 mm. If the tank unit 27 is manufactured and assembled with high accuracy, the recording devices 12 and 85 are installed horizontally, and the fluctuation of the liquid level 51 is kept between the outlet 59 and the upper limit scale 64b, the liquid can be liquid even if the height h2 is 70 mm. Ink can be satisfactorily supplied to the ejection head 32.

  In each of the above embodiments, the height h3 in the vertical direction Z from the outlet 59 to the inlet 52 may be greater than 70 mm. In this case, for example, it is preferable to arrange the liquid jet head 32 in accordance with the position of the injection port 52 and to form the lower limit scale 64a at a position 70 mm or less from the injection port 52 in the vertical direction Z. That is, when the liquid ejecting head 32 is arranged in accordance with the position of the injection port 52, even when the ink is injected until the ink overflows from the injection port 52, the leakage of the ink from the liquid ejecting head 32 is suppressed. Can do. On the other hand, when ink is consumed and the liquid level 51 is lowered, there is a possibility that ink cannot be supplied to the liquid ejecting head 32 even if ink remains in the ink chamber 50. In this regard, by forming the lower limit scale 64a at a position of 70 mm or less from the injection port 52, it is possible to prompt ink injection before ink supply cannot be performed.

  In each of the above-described embodiments, the width of the ink chamber 50 may be smaller in the left-right direction X than the height in the up-down direction Z. Further, the width in the front-rear direction Y may be smaller than the height in the vertical direction Z.

  -In each said embodiment, it is good also as a structure which provides any one scale among the lower limit scale 64a and the upper limit scale 64b. In addition to the lower limit scale 64a and the upper limit scale 64b, a scale may be formed.

  In each of the above embodiments, the viewing surface 43a may be formed to face a plurality of directions. For example, the lower limit scale 64a may be formed on the viewing surface 43a by causing the inlet forming surface 54 to function as the viewing surface, and the upper limit scale 64b may be formed on the inlet forming surface 54. Further, a window portion may be formed on the front surface or the rear surface of the tank case 42, and the front surface and the rear surface of the ink tank 43 visible from the window portion may function as a visual recognition surface.

In each of the above embodiments, the upper limit scale 64b may be formed on the side opposite to the side where the injection port 52 is formed in the front-rear direction Y.
In each of the above embodiments, the visual recognition surface 43a may have a width in the front-rear direction Y that is smaller than the height in the vertical direction Z.

  In each of the above embodiments, the lower limit scale 64a may be formed on the side opposite to the side where the injection port 52 is formed in the front-rear direction Y. Further, the lower limit scale 64a may be formed on the side opposite to the side where the outlet 59 is formed in the front-rear direction Y.

  In each of the above embodiments, the lower limit scale 64a and the upper limit scale 64b may be formed by shifting the position in the front-rear direction Y even when they are formed on the same side in the front-rear direction Y. Furthermore, the lower limit scale 64a and the upper limit scale 64b may be formed by shifting the position from the injection port 52 in the front-rear direction Y.

In each of the above embodiments, the inlet 52 and the outlet 59 may be formed on different sides of the ink tank 43 in the front-rear direction Y.
In each of the above embodiments, the inclination of the cylindrical portion 53 with respect to the vertical direction Z and the inclination of the injection port forming surface 54 with respect to the vertical direction Z may be different.

In each of the above embodiments, the injection port forming surface 95 may be formed so as to be orthogonal to the vertical direction Z as shown in FIG.
In each of the above embodiments, the injection port 52 may be formed on the injection port forming surface 54 without forming the cylindrical portion 53. Since the injection port forming surface 54 is non-orthogonal with respect to the vertical direction Z, the end surface 52a of the injection port 52 is also non-orthogonal with respect to the vertical direction Z. Further, a dam protrusion convex portion 55 may be provided at the same position or in an upper position in the vertical direction Z with respect to the injection port 52.

  In the above embodiment, the cylindrical portion 53 is formed so as to protrude upward, and the end surface of the injection port 52 is formed by forming the distal end surface of the cylindrical portion 53 so as not to be orthogonal to the vertical direction Z. 52a may be non-orthogonal with respect to the vertical direction Z.

  In each of the above embodiments, the inclinations of the injection port 52 and the damming projection 55 with respect to the vertical direction Z may be different. That is, the inclination with respect to the up-down direction Z of the cylinder part 53 in which the injection port 52 was formed, and the damming convex part 55 may be varied.

  In each of the above embodiments, the inlet forming surface 54 may be formed so as to face a plurality of directions. For example, the injection port forming surface 54 may be formed in a mountain shape or a valley shape from walls located on both sides in the front-rear direction Y toward the rib portion 56.

  In each of the above-described embodiments, as shown in FIG. 28, a blocking recess 96 as an example of a blocking portion and a groove may be formed in the inlet forming surface 54 (modified example). The leaked ink can be blocked by capturing the leaked ink by the blocking recess 96 formed in the inlet forming surface 54. Further, the blocking recess 96 and the blocking projection 55 may be formed side by side.

  In each of the above embodiments, the inlet forming surface 54 may be a slope that climbs toward the viewing surface 43a. And the damming convex part 55 may be located above the injection port 52. An absorbent material 39 is interposed between the apparatus main body 13 and the tank unit 27. Therefore, the ink that leaks from the injection port 52 and travels through the injection port formation surface 54 is absorbed by the absorbent 39. Therefore, the absorbing material 39 is provided in the flow path of the leaked ink. By attaching the absorbent 39 on the leaked ink flow path, the leaked ink can be absorbed by the absorbent 39. Therefore, it is possible to reduce the risk of the surroundings being contaminated by the leaked ink.

  In each of the above embodiments, the width in the front-rear direction Y of the blocking projection 55 may be smaller than the width of the injection port 52 or the cylindrical portion 53. In addition, the shape of the blocking protrusion 55 may be a U shape, a V shape, a W shape, or the like. Further, the damming convex portion 55 may be formed in a ring shape surrounding the injection port 52 or a C shape with a part separated.

  In each of the above embodiments, the blocking convex portion 55 may be formed at the end portion of the inlet forming surface 54 and the stepped portion 54a may not be provided. Further, the stepped portion 54a may be formed to have a surface orthogonal to the vertical direction Z or a surface inclined toward the damming convex portion 55.

-In each said embodiment, it is good also as a structure which does not provide the visual recognition surface 43a. Moreover, it is good also as a structure which does not provide the lower limit scale 64a and the upper limit scale 64b.
In each of the above embodiments, as shown in FIG. 28, an absorbent material 97 may be interposed between the ink tank 43 and the tank case 42. In this case, the tank case 42 functions as an example of a protective member.

  In each of the above embodiments, as shown in FIG. 28, an absorbent material 98 interposed between the apparatus main body 13 and the ink tank 43 may be extended to the injection port forming surface 54. That is, the absorber 98 is continuously arranged from the injection port 52 to between the apparatus main body 13 and the ink tank 43, and is provided in the flow path of the leaked ink. According to this configuration, it is possible to absorb leaked ink leaked from the injection port 52 and leaked ink flowing between the ink tank 43 and the apparatus main body 13 by one absorbent material 98. Further, an absorbent material may be provided on the injection port forming surface 54 separately from the absorbent material 39 to absorb ink leaked from the cylindrical portion 53. By attaching the absorbent material on the inlet forming surface 54 that becomes the flow path of the leaked ink, the leaked ink can be absorbed by the absorbent material. Therefore, it is possible to reduce the risk of the surroundings being contaminated by the leaked ink. Then, at least one absorbent material among the absorbent material and the absorbent materials 39, 97, and 98 may be attached to the ink tank 43 by being attached or placed thereon. That is, the ink tank 43 may include the absorber 39.

  In each of the above embodiments, the thickness of the absorbent 39 in the left-right direction may be smaller than the width of the gap between the apparatus main body 13 and the ink tank 43. That is, when the tank unit 27 is fixed to the apparatus main body 13, the absorbent 39 may be interposed without being compressed and deformed.

  In each of the above embodiments, the absorbent material 39 may be sandwiched between the apparatus main body 13 and the tank unit 27 without being attached to the apparatus main body 13. Further, the absorbent 39 may be inserted into the gap between the apparatus main body 13 and the tank unit 27 in a state where the tank unit 27 is fixed to the apparatus main body 13.

  In each of the above embodiments, as shown in FIGS. 29 and 30, the hole 101 as an example of the first engaging portion and the claw portion 102 as an example of the second engaging portion are attached to the apparatus main body 13. You may provide in the surface 13a and the tank case 42 (modification). That is, as shown in FIG. 29, at least one (two in this modification) hole portion 101 may be provided at the front position of the front rib portion 34b and the upper position of the rear rib portion 34d of the mounting surface 13a. Good. Furthermore, as shown in FIG. 30, at least one (two in this modification) claw portion 102 is placed on the left and right sides of the front end position and the rear end position of the case opening 42 b corresponding to the hole 101. You may form so that it may protrude toward. In this way, when the tank case 42 is brought close to the apparatus main body 13 in a state where the hole 101 and the claw 102 are in positional correspondence, the claw 102 becomes the hole 101 (specifically, After the elastic deformation by contact with the edge portion of the hole, the shape is elastically restored, and the hole 101 and the claw 102 are brought into the engaged state from the non-engaged state so far. Therefore, the tank unit 27 can be easily fixed to the apparatus main body 13 without using a special fixing member.

  In addition, the claw portion 102 may be provided in the apparatus main body 13 and the tank case 42 may be provided with an engaging portion such as a hole portion that engages with the claw portion 102. Further, the claw portions 102 may be provided on both the apparatus main body 13 and the tank case 42, and the claw portions 102 may be engaged with each other. In this case, the claw portion 102 functions as an example of the first engagement portion and the second engagement portion.

  Furthermore, when providing the hole part 101 and the nail | claw part 102, it is good also as a structure which does not equip the tank case 42 with case latching | locking part 68a-68e. Further, the tank case 42 may be provided with a claw portion 102 or an engaging portion that can be engaged with the engaging portion on the apparatus main body 13 side instead of the case locking portions 68a to 68e.

  In each of the above embodiments, two or more tank cases 42 as an example of a protective case are provided, and an ink tank 43 is accommodated in each tank case 42 and fixed to the mounting surface 13 a of the apparatus main body 13. Another tank case 42 may be connected to the side surface of one tank case 42 so as to be adjacent in the left-right direction X. In this case, a hole as an example of the first engagement portion is provided on the side surface of one tank case 42, while a claw portion as an example of the second engagement portion is provided on the opposite side surface of the other tank case 42. Good. That is, the tank case containing the ink tank is provided with one of the first engaging portion and the second engaging portion that are engaged by elastic deformation at least one, and the other covers the other ink tank. What is necessary is just the structure with which this tank case is provided. According to this configuration, by adhering at least one of the first engaging portion provided in one tank case and the second engaging portion provided in the other tank case to be elastically deformed and engaged with each other, adjacent tank cases are connected to each other. Can be connected and expanded.

  As shown in FIG. 31, a tank case 42 as an example of a protective case is fixed to the mounting surface 13a of the apparatus main body in a state where two or more (two in FIG. 31) ink tanks 43A and 43B are accommodated. It may be a configuration. According to this configuration, an ink tank which is an example of a liquid container can be easily added. Note that the number of ink tanks accommodated in the tank case 42 may be two or more, such as three or four, depending on the size of the tank case 42.

  Further, as shown in FIG. 31, in a state where two or more ink tanks 43A and 43B are accommodated in the tank case 42, the two adjacent in the horizontal direction (left-right direction X) intersecting the longitudinal direction (front-rear direction Y). The individual ink tanks 43A and 43B may be provided at positions where the respective injection ports 52A and 52B are offset from each other in the longitudinal direction. According to this configuration, as compared with the case where the injection ports 52A and 52B in the two or more adjacent ink tanks 43A and 43B are arranged side by side in the horizontal direction intersecting the longitudinal direction, other adjacent notes are used. Since the entrance can be prevented from interfering, ink can be easily injected into the injection ports 52A and 52B. Moreover, erroneous injection into another injection port is prevented as compared with the case where the liquid injection ports are in a side-by-side state.

  Further, as shown in FIG. 31, the tank case 42 opens above the respective inlets at positions corresponding to the inlets 52A and 52B in the two or more ink tanks 43A and 43B accommodated therein. The tank case 42 may include receiving portions 74A and 74B that are cut out in a U shape from the case opening 42b side. According to this configuration, as shown in FIG. 31, for example, even when the injection ports 52A and 52B are provided at the distal ends of the cylindrical portions 53A and 53B, the ink tanks 43A and 43B are stored in the tank case 42. The cylindrical portions 53A and 53B can be inserted into the receiving portions 74A and 74B from the case opening 42b side. Therefore, the ink tanks 43A and 43B can be accommodated in the tank case 42 smoothly.

  Further, as shown in FIG. 31, the tank case 42 has a receiving portion 74B corresponding to the inlet 52B of the ink tank 43B above the ink tank 43A in a state where two or more ink tanks 43A and 43B are accommodated therein. May be formed so as to overlap in the left-right direction X. That is, among the ink tanks, the receiving portion 74B at a position corresponding to the injection port 52B in the ink tank 43B other than the ink tank 43A located closest to the case opening 42b is another ink tank adjacent to the case opening 42b. It may be formed in a size overlapping with 43A. According to this configuration, the cylindrical portions 53A and 53B provided with the inlets in the two adjacent ink tanks at the tip end are arranged side by side in the horizontal direction (left-right direction X) intersecting the longitudinal direction (front-rear direction Y), for example. Even in such a case, it is possible to easily insert the respective cylindrical portions of the two ink tanks adjacent in one receiving portion from the case opening 42b side.

  In addition, as shown by a two-dot chain line in FIG. 31, each of the ink tanks 43A and 43B includes a hole 101 and a claw 102 as an example of a connecting portion that can be connected to another ink tank. The ink tanks 43A and 43B may be provided with each other. According to this configuration, two or more ink tanks are connected in advance so as to be adjacent to each other in the horizontal direction (left-right direction X) intersecting the longitudinal direction (front-back direction Y), and then the tanks are collectively collected. By inserting it into the case 42, two or more ink tanks can be easily accommodated in the tank case.

  Further, as shown in FIG. 31, a valve lever 47 serving as an operation portion of a choke valve 45 attached to a tube 31 as an example of a flow path extending from the ink tank is accommodated in two or more ink tanks 43A and 43B. The tank case 42 may be provided as a common operation unit for each tube 31 corresponding to each ink tank. According to this configuration, the choke valve 45 of each tube 31 corresponding to two or more ink tanks can be collectively opened and closed by operating one valve lever 47 serving as a common operation unit. The number of parts can be reduced.

  In each of the above embodiments, the handle portion 71 may be provided at a position different from between the fourth case locking portion 68d and the fifth case locking portion 68e. Further, the tank case 42 may not be provided with the handle 71.

  In each of the above-described embodiments, the positioning recesses 63a and 63b and the positioning protrusions 67a and 67b may be either one set that is unevenly fitted to each other. Moreover, you may provide 3 or more sets of a positioning recessed part and a positioning convex part. Furthermore, even when a plurality of positioning recesses and positioning protrusions are provided, a configuration without an elongated hole may be employed.

In each of the above embodiments, the positioning concave portions 63a and 63b and the positioning convex portions 67a and 67b may not be provided.
In each of the above embodiments, the case opening 42b does not need to be larger than the right side surface of the ink tank 43. If the case opening 42b is larger than the front surface or the rear surface of the ink tank 43, the ink tank 43 is placed in the tank case. Can be accommodated.

  In each of the above embodiments, the tank case 42 may be a four-surface integral molded product or a three-surface integral molded product. For example, the tank case 42 may be configured such that the front surface, the rear surface, the right surface, and the upper surface are integrally formed and has no bottom surface. The tank case 42 may not be integrally formed as long as it covers at least a part of the ink tank 43.

  In each of the above embodiments, the ink chamber 50 only needs to satisfy a shape condition in a part in the vertical direction Z. That is, for example, a rectangular parallelepiped-shaped portion that satisfies the shape condition may have a shape in which a portion that does not satisfy the shape condition is continuously provided in the vertical direction Z. Further, the shape of the ink chamber 50 can be arbitrarily changed as long as the shape condition is satisfied. For example, the horizontal cross-sectional view shape may be a circle, an ellipse, a rectangle, a polygon, or a shape having a partially uneven portion, a curved portion, a bent portion, a bow portion, or an arc portion. Further, the ink chamber 50 may have a shape whose horizontal step view shape changes at each position in the vertical direction Z.

In each of the above embodiments, the air intake 60 can be provided at any position as long as it is above the upper limit scale 64b. For example, the ink tank 43 may be provided on the right side surface.
In each of the above embodiments, as shown in FIG. 1, when determining whether or not to inject ink or when injecting ink, the scale 28a is formed along the window 42a and formed on the scale 28a. The scale may be used as a guide.

In each of the above embodiments, the lower limit scale 64a and the upper limit scale 64b may be formed by sticking a seal or the like on which the scale is written to the visual recognition surface 43a of the ink tank 43.
In each of the above embodiments, the lower limit scale 64a and the upper limit scale 64b may be only triangular marks without forming a line extending in the front-rear direction. Moreover, it is good also as only the line extended in the front-back direction, without forming a triangle-shaped mark.

  -In each above-mentioned embodiment, the number of case latching | locking parts 68a-68e and the number of the screw boss | hub parts 37 may differ. If the screw 36 is screwed into at least one of the case locking portions 68 a to 68 e and the screw boss portion 37, the tank unit 27 can be fixed to the apparatus main body 13. Note that the tank unit 27 is fixed in a state in which the tank unit 27 is not detached from the apparatus main body 13 and includes a state in which there is rattling.

  In each of the above embodiments, the tank unit 27 may be fixed to the apparatus main body 13 by a fixing member such as a bolt, a double-sided tape, an adhesive, an adhesive tape, a caulking, a string, and a binding band.

In each of the above embodiments, the ink tank 43 may be provided in the apparatus main body 13.
In each of the above embodiments, the liquid consuming apparatus may be a liquid consuming apparatus that consumes by ejecting, discharging, or applying a liquid other than ink. In addition, the state of the liquid ejected as a minute amount of liquid droplets from the liquid consuming device includes those that are tailed in a granular shape, a tear shape, or a thread shape. Moreover, the liquid here should just be a material which can be consumed with a liquid consumption 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 a metal particle are dissolved, dispersed or mixed in a solvent is included. Typical examples of the liquid include ink and liquid crystal as described in the above embodiment. Here, the ink includes general water-based inks and oil-based inks, and various liquid compositions such as gel inks and hot melt inks. Specific examples of the liquid consuming device include, 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 light emitting display, a color filter, or the like in a dispersed or dissolved state. 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.

  The liquid container, the liquid container unit, and the liquid supply system may be a liquid container, a liquid container unit, and a liquid supply system that store the liquid supplied to these liquid consuming devices.

  12, 85... Recording device (an example of liquid consumption device), 13, 87... Device main body (an example of protective member), 27... Tank unit (an example of liquid container unit), 31. 32... Liquid ejecting head (an example of a liquid consuming part), 36... Screw (an example of a fixing member), 39, 97, 98. Part (an example of an opening), 43, 43A, 43B ... an ink tank (an example of a liquid container), 43a ... a viewing surface, 44 ... a cover, 50 ... an ink chamber (an example of a liquid container), 51 ... a liquid surface, 52, 52A, 52B ... inlet (an example of liquid inlet), 52a ... end face, 53, 53A, 53B, 94 ... cylindrical part, 54, 95 ... inlet forming surface (an example of flow path), 54a ... step part 55 ... Damping convex part (damming block , A projecting portion), 58... Closing member, 59... Outlet port (an example of liquid outlet port), 60... Air intake port, 63 a and 63 b ... positioning recess (an example of positioning portion), 64 a. (Example), 64b ... Upper limit scale (Example of scale), 67a, 67b ... Positioning convex part (Example of positioning part), 68a-68e ... Case locking part (Example of locking part), 71 ... Hand part, 74 74A, 74B ... receiving part, 75 ... mounting part, 76a, 76b ... rail part (an example of a support part), 96 ... damming recess (an example of a damming part, a groove part), 97, 98 ... absorbent material, 101 ... Hole part (an example of a first engaging part and a connecting part), 102 ... A claw part (an example of a second engaging part and a connecting part), A ... A concealment position, B ... A non-concealment position, H ... A height, h1 , H2, h3 ... height, W ... width, X ... left-right direction (an example of horizontal direction), Y ... front-rear (An example of the horizontal direction), Z ... vertical direction (an example of a vertical direction).

Claims (16)

  1. A liquid storage chamber for storing the liquid supplied via a tube to a liquid consumption unit that consumes the liquid;
    A liquid outlet for guiding the liquid stored in the liquid storage chamber to the tube;
    A liquid container comprising: a liquid injection port capable of injecting the liquid into the liquid storage chamber;
    A protective case covering the liquid container,
    The protective case, Ri integrally molded product der,
    The liquid container and the protective case are formed with a plurality of positioning portions that are unevenly fitted,
    At least one positioning part among the positioning parts has a long slot in the horizontal direction .
  2. The liquid container unit according to claim 1, wherein the protective case is a five-sided integrally molded product having an opening larger than the liquid container.
  3. The liquid container unit according to claim 1, wherein the protective case has a handle portion.
  4. The protective case is formed with a locking portion for locking the fixing member when the protective case is fixed to the main body of the device containing the liquid consumption portion at both side positions of the handle portion. The liquid container unit according to claim 3.
  5. The protective case is one of a first engaging portion and a second engaging portion that are engaged with at least one elastically deformed when the protective case is fixed to the apparatus main body that houses the liquid consuming portion. The liquid container unit according to any one of claims 1 to 4, wherein the apparatus main body includes the other side.
  6. The protective case includes at least one of a first engaging portion and a second engaging portion that are engaged with each other by elastic deformation, and the other is provided with another protective case that covers another liquid container. The liquid container unit according to claim 1, wherein the liquid container unit is a liquid container unit.
  7. The liquid consumption part;
      The tube;
      The liquid container unit according to any one of claims 1 to 6 and
      A liquid consuming apparatus comprising:
  8. A liquid storage chamber connected to the liquid consumption part via a flow path;
      A liquid outlet connected to the flow path;
      A liquid inlet capable of injecting liquid into the liquid storage chamber;
      A liquid container comprising:
      A protective case that covers at least a part of the liquid container and is fixed to an apparatus main body that houses the liquid consumption unit;
      A liquid container unit comprising:
      The protective case has an opening through which the liquid container can be inserted in a surface that becomes the apparatus main body side when being fixed to the apparatus main body.
      The liquid container is fixed to the apparatus main body together with the protective case in a state of being accommodated in the protective case by insertion from the opening,
      In the state where two or more of the liquid containers are accommodated in the protective case, the two liquid containers adjacent to each other in the direction intersecting the longitudinal direction are at positions where the liquid injection ports are offset from each other in the longitudinal direction. A liquid container unit which is provided.
  9. The said protective case has the receiving part cut out and formed from the said opening part side in the position corresponding to the said liquid inlet in the said liquid container accommodated inside. The liquid container unit according to the above.
  10. The protective case corresponds to a liquid inlet in a liquid container other than the liquid container located closest to the opening among the liquid containers in a state where two or more liquid containers are housed therein. 10. The liquid container unit according to claim 9, wherein the receiving part at a position to be overlapped with another liquid container adjacent to the liquid container on the opening side is formed. .
  11. A liquid storage chamber connected to the liquid consumption part via a flow path;
      A liquid outlet connected to the flow path;
      A liquid inlet capable of injecting liquid into the liquid storage chamber;
      A liquid container comprising:
      A protective case that covers at least a part of the liquid container and is fixed to an apparatus main body that houses the liquid consumption unit;
      A liquid container unit comprising:
      The protective case has an opening through which the liquid container can be inserted in a surface that becomes the apparatus main body side when being fixed to the apparatus main body.
      The liquid container is fixed to the apparatus main body together with the protective case in a state of being accommodated in the protective case by insertion from the opening,
      The protective case is fixed to the apparatus main body in a state where two or more liquid containers are accommodated therein, and the opening is provided at a position corresponding to the liquid inlet in the liquid container accommodated therein. A receiving portion formed by cutting out from a portion side, and the receiving portion at a position corresponding to a liquid inlet in a liquid container other than the liquid container located closest to the opening among the liquid containers. The liquid container unit is formed to have a size overlapping with another liquid container adjacent to the liquid container on the opening side.
  12. The liquid container according to any one of claims 8 to 11, wherein the liquid container includes a connecting portion that enables connection in a state adjacent to another liquid container. unit.
  13. 13. The locking case for locking the fixing member when the protective case is fixed to the apparatus main body is formed in the protective case. The liquid container unit according to the above.
  14. The protective case is one of a first engaging portion and a second engaging portion that are engaged with at least one elastically deformed when the protective case is fixed to the apparatus main body that houses the liquid consuming portion. The liquid container unit according to any one of claims 8 to 13, wherein the apparatus main body includes the other side.
  15. An operation portion of a valve attached to the flow path is provided in the protective case in which two or more liquid containers are accommodated, and in each flow path corresponding to the two or more liquid containers. The liquid container unit according to claim 8, wherein the liquid container unit is provided as a common operation unit.
  16. The liquid consumption part;
      The flow path;
      The liquid container unit according to any one of claims 8 to 15 and
      A liquid consuming apparatus comprising:
JP2012252657A 2012-08-10 2012-11-16 Liquid container unit, liquid consuming device Active JP6155606B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012178826 2012-08-10
JP2012178826 2012-08-10
JP2012252657A JP6155606B2 (en) 2012-08-10 2012-11-16 Liquid container unit, liquid consuming device

Applications Claiming Priority (26)

Application Number Priority Date Filing Date Title
JP2012252657A JP6155606B2 (en) 2012-08-10 2012-11-16 Liquid container unit, liquid consuming device
PCT/JP2013/004712 WO2014024458A1 (en) 2012-08-10 2013-08-02 Liquid container, liquid-consuming device, liquid supply system, and liquid container unit
KR1020157005222A KR101953429B1 (en) 2012-08-10 2013-08-02 Liquid container, liquid-consuming device, liquid supply system, and liquid container unit
BR112015002857A BR112015002857A2 (en) 2012-08-10 2013-08-02 liquid container, liquid consuming apparatus, liquid supply system and liquid container unit.
RU2018105185A RU2018105185A (en) 2012-08-10 2013-08-02 Liquid container, liquid consumption device, liquid feeding system and liquid container unit
MYPI2015700372A MY166230A (en) 2012-08-10 2013-08-02 Liquid container, liquid consuming apparatus, liquid supply system and liquid container unit
EP13827659.7A EP2883704B1 (en) 2012-08-10 2013-08-02 Liquid supply system
RU2015107752A RU2647099C2 (en) 2012-08-10 2013-08-02 Liquid container, liquid-consuming device, liquid supply system and liquid container unit
MX2015001738A MX2015001738A (en) 2012-08-10 2013-08-02 Liquid container, liquid-consuming device, liquid supply system, and liquid container unit.
TW106144284A TWI655104B (en) 2012-08-10 2013-08-06 Liquid container
TW106144281A TWI663072B (en) 2012-08-10 2013-08-06 Ink tank, liquid consuming apparatus, ink injection system
TW106144283A TW201811575A (en) 2012-08-10 2013-08-06 Liquid container
TW102128160A TWI613097B (en) 2012-08-10 2013-08-06 Liquid container, liquid consuming apparatus
TW106144271A TWI649217B (en) 2012-08-10 2013-08-06 Liquid supply system, liquid container, a liquid consuming apparatus
US13/962,172 US9079413B2 (en) 2012-08-10 2013-08-08 Liquid conatiner, liquid consuming apparatus, liquid supply system and liquid container unit
CN 201320484652 CN203567361U (en) 2012-08-10 2013-08-09 Liquid-containing body unit and liquid consumption device
CN201711117779.5A CN107867076B (en) 2012-08-10 2013-08-09 Liquid container
CN201610884068.XA CN106626784A (en) 2012-08-10 2013-08-09 Liquid jet apparatus, liquid container and liquid injection bottle combined body
CN201610884314.1A CN106476443A (en) 2012-08-10 2013-08-09 Liquid consuming device
CN201310344939.5A CN103568581B (en) 2012-08-10 2013-08-09 The ink tank and the liquid consuming apparatus
CN201610884707.2A CN106626785B (en) 2012-08-10 2013-08-09 Liquid-supplying system, liquid consuming device and liquid container
CN201610884751.3A CN106427223B (en) 2012-08-10 2013-08-09 Liquid container
CN201610244910.3A CN105856851B (en) 2012-08-10 2013-08-09 The liquid container and the liquid consuming apparatus
CN201610884380.9A CN106427222B (en) 2012-08-10 2013-08-09 Liquid container
US14/735,453 US9290001B2 (en) 2012-08-10 2015-06-10 Liquid container, liquid consuming apparatus, liquid supply system and liquid container unit
US15/011,038 US10112399B2 (en) 2012-08-10 2016-01-29 Liquid container, liquid consuming apparatus, liquid supply system and liquid container unit

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JP6460303B2 (en) * 2014-06-12 2019-01-30 ブラザー工業株式会社 Image forming apparatus
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US7088459B1 (en) * 1999-05-25 2006-08-08 Silverbrook Research Pty Ltd Method and system for providing a copy of a printed page
JP5104548B2 (en) * 2008-05-27 2012-12-19 セイコーエプソン株式会社 Liquid supply system and manufacturing method thereof
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