Patent Grant
9643423
The present invention relates to a liquid container and a liquid ejection apparatus.
An inkjet printer that is one type of a liquid ejection apparatus performs printing on a printing medium such as printing paper by ejecting ink that is one example of a liquid from a record head onto the printing medium. A conventionally known configuration of this inkjet printer includes an ink tank as one example of a liquid container (see, for example, Patent Literature 1). In the inkjet printer provided with the ink tank, ink contained in the ink tank is supplied to the record head.
PTL 1: JP 2003-205624A
Patent Literature 1 mentioned above discloses a configuration that part of the ink tank is transparent in one side face of the inkjet printer. In the inkjet printer disclosed in Patent Literature 1, the remaining amount of ink in the ink tank is visible from the side face of the inkjet printer. In this ink tank, however, in some attitude, while the remaining amount is visually recognizable through an area ST that allows for visual recognition of the remaining amount of ink (hereinafter called visual recognition area), ink may not reach a supply port EX on an opposite side to the visual recognition area ST, as shown in
In this ink tank, in some attitude, while the remaining amount is not visually recognizable through the visual recognition area ST and is thus determined to be insufficient, ink may be actually left on the side of the supply port EX, as shown in
In order to solve at least part of the problems described above, the invention may be implemented by the following aspects or embodiments.
[Aspect 1]
A liquid container comprises a casing that has a side wall surrounding a container portion configured to contain a liquid; a projecting portion that is provided inside of the container portion to be protruded vertically upward from a bottom of the container portion; and an outlet port that is provided in the casing, that is communicated with outside of the casing through an outer area outside of an overlapping area which overlaps the projecting portion in the container portion in a planar view and that discharges the liquid from the container portion. An area of the side wall, including at least part of an opposed area that is opposed to the projecting portion across a space, has optical transparency.
In the liquid container of this aspect, the projecting portion is provided in the container portion to be protruded from the bottom. This projecting portion raises the liquid in the container portion. This is likely to heighten the position of liquid level of the liquid in the container portion. In this liquid container, the outlet port provided to discharge the liquid from the container portion to outside of the casing communicates with outside of the casing through the outer area outside of the overlapping area that overlaps the projecting portion in the container portion in the planar view. This configuration causes the raised liquid to be discharged out of the casing. In this liquid container, the area of the side wall including at least part of the opposed area that is opposed to the projecting portion across the space has optical transparency, so that the raised liquid is visible through the area having optical transparency. This facilitates recognition of the remaining amount of the liquid in the container portion. More specifically, the configuration of the liquid container raises the liquid in the container portion and is thus likely to discharge the raised liquid out of the casing and to make the remaining amount of the raised liquid readily recognizable from outside of the casing.
[Aspect 2]
In the liquid container of the above aspect, the outlet port may be provided on a side of the bottom to be below a top of the projecting portion.
In this aspect, the outlet port is provided on the side of the bottom to be below the top of the projecting portion and is thus likely to discharge the liquid remaining in the container portion to outside of the casing.
[Aspect 3]
In the liquid container of the above aspect, the side wall may comprise a first side wall that is provided with the outlet port, and a second side wall that is arranged to face the first side wall across the projecting portion. An area of the second side wall including at least part of an opposed area that is opposed to the projecting portion across a space may have optical transparency.
This aspect provides the liquid container having the projecting portion that is placed between the first side wall and the second side wall opposed to each other. This configuration enables the remaining amount of the liquid accumulated in the space between the second side wall and the projecting portion to be visually recognized through the second side wall.
[Aspect 4]
In the liquid container of the above aspect, the first side wall may be continuous with the projecting portion.
In this aspect, the first side wall and the projecting portion are continuous with each other. This is likely to increase the ratio of the area of the projecting portion to the area of the bottom in the planar view and is thus more likely to raise the liquid in the container portion.
[Aspect 5]
In the liquid container of the above aspect, the first side wall may have a clearance from the projecting portion.
In this aspect, the first side wall has a clearance from the projecting portion. This configuration is likely to accumulate the liquid between the first side wall and the projecting portion.
[Aspect 6]
According to another aspect, there is provided a liquid ejection apparatus. The liquid ejection apparatus may comprise a tank that is configured to contain a liquid; a liquid ejection head that is configured to be communicable with the tank via a supply tube; and a housing that is provided to place the tank inside thereof. The tank may comprise a container portion configured to contain the liquid, an inlet port provided to pour the liquid into the container portion and an outlet port provided to supply the liquid through the supply tube to the liquid ejection head. The container portion may comprise a side wall, a bottom and a projecting portion that is provided inside of the container portion to be protruded vertically upward from the bottom. At least part of the side wall may form a visual recognition portion that overlaps a window of the housing. A first portion of the bottom may form a first liquid reservoir that is visible from the visual recognition portion.
In the liquid ejection apparatus of this aspect, the projecting portion is provided in the container portion to be protruded from the bottom. Providing the projecting portion decreases the surface area of the bottom in the container portion. This configuration accordingly raises the liquid in the first liquid reservoir that is a portion of the bottom. Even when the liquid ejection apparatus is inclined to cause the liquid to slightly flow out of the first liquid reservoir, this configuration leaves the liquid in the first liquid reservoir at a visually recognizable level.
[Aspect 7]
In the liquid ejection apparatus of the above aspect, a second portion of the bottom may form a second liquid reservoir that communicates with the outlet port. The first liquid reservoir and the second liquid reservoir may communicate with each other via a communication path that is provided inside of the container portion to be located vertically below a top of the projecting portion.
In this aspect, the projecting portion is provided in the container portion to be protruded from the bottom. Providing the projecting portion decreases the surface area of the bottom in the container portion. This configuration accordingly raises the liquid in the second liquid reservoir that is a portion of the bottom. Even when the liquid ejection apparatus is inclined to cause the liquid to slightly flow out of the second liquid reservoir, this configuration leaves some liquid in the second liquid reservoir. Even a small amount of remaining liquid is thus dischargeable from the outlet port to outside of the container portion.
[Aspect 8]
According to another aspect, there is provided a liquid ejection apparatus. The liquid ejection apparatus may comprise a tank that is configured to contain a liquid; a liquid ejection head that is configured to be communicable with the tank via a supply tube; and a housing that is provided to place the tank inside thereof. The tank may comprise a container portion configured to contain the liquid, an inlet port provided to pour the liquid into the container portion and an outlet port provided to supply the liquid through the supply tube to the liquid ejection head. The container portion may comprise a side wall, a bottom and a projecting portion that is provided inside of the container portion to be protruded vertically upward from the bottom. At least part of the bottom may form a liquid reservoir that communicates with the outlet port.
In this aspect, the projecting portion is provided in the container portion to be protruded from the bottom. Providing the projecting portion decreases the surface area of the bottom in the container portion. This configuration accordingly raises the liquid in the second liquid reservoir that is a portion of the bottom. Even when the liquid ejection apparatus is inclined to cause the liquid to slightly flow out of the second liquid reservoir, this configuration leaves some liquid in the second liquid reservoir. Even a small amount of remaining liquid is thus dischargeable from the outlet port to outside of the container portion.
[Aspect 9]
In the liquid ejection apparatus of the above aspect, the housing may be provided to place the liquid ejection head inside thereof.
This aspect provides the arrangement that both the liquid ejection head and the tank are placed in the housing and thereby enhances the attachment strength of the tank.
The following describes a multifunction printer as one example of a liquid ejection apparatus according to an embodiment with reference to drawings. The multifunction printer 1 of the embodiment includes a printer 3 and a scanner unit 5 as shown in
The scanner unit 5 is flatbed type having an imaging element (not shown) such as an image sensor, a platen and a cover. The scanner unit 5 is capable of reading an image or the like recorded on a medium such as paper via the imaging element in the form of image data. The scanner unit 5 accordingly serves as a reader of the image or the like. As shown in
The printer 3 performs printing on a printing medium P such as printing paper with ink as one example of liquid. As shown in
According to this embodiment, four tanks 9 are provided. The four tanks 9 respectively contain different inks. This embodiment employs four different inks, i.e., black, yellow, magenta and cyan. Each of the four tanks 9 is provided to contain a different ink.
The printer 3 also has an operation panel 12. The operation panel 12 is provided with a power button 13A and other operation buttons 13B. An operator who operates the printer 3 faces the operation panel 12 to operate the power button 13A and the operation buttons 13B. A front face of the printer 3 is a surface where the operation panel 12 is provided. The housing 7 has a window 14 provided on the front face of the printer 3. The window 14 has optical transparency. The four tanks 9 described above are placed at a position overlapping the window 14. This configuration enables the operator to visually check the four tanks 9 through the window 14.
According to this embodiment, a region of each of the tank 9 facing the window 9 has optical transparency and serves as the visual recognition portion. Ink contained in the tank 9 is visible through the region of the tank 9 having optical transparency. This enables the operator to observe the four tanks 9 through the window 14 and thereby visually check the amounts of inks remaining in the respective tanks 9. According to this embodiment, the window 14 is provided on the front surface of the printer 3. This configuration enables the operator facing the operation panel 12 to visually recognize the respective tanks 9 through the window 14. This accordingly enables the operator to check the remaining amounts of inks in the respective tanks 9 while operating the printer 3.
As shown in
The printer 3 also has a medium feeding mechanism (not shown) and a head carrying mechanism (not shown). The medium feeding mechanism drives a feed roller 22 by the power from a motor (not shown), so as to feed a printing medium P in the Y-axis direction. The head carrying mechanism transmits the power from a motor 23 via a timing belt 25 to the carriage 17, so as to carry the carriage 17 along the X-axis direction. As described above, the liquid ejection head 19 is mounted on the carriage 17. The liquid ejection head 19 is thus movable in the X-axis direction via the carriage 17 by the head carrying mechanism. The medium feeding mechanism and the head carrying mechanism cause ink to be ejected from the liquid ejection head 19 while changing the position of the liquid ejection head 19 relative to the printing medium P, so as to complete printing on the printing medium P.
The tank 9 has a casing 31 and a sheet member 33 as shown in
The container portion 35 includes first wall 41, a second wall 42, a third wall 43, a fourth wall 44 and a fifth wall 45. The second wall 42, the third wall 43, the fourth wall 44 and the fifth wall 45 are arranged to intersect with the first wall 41 respectively. The second wall 42 and the third wall 43 are located to face each other across the first wall 41 in the Y-axis direction. The fourth wall 44 and the fifth wall 45 are located to face each other across the first wall 41 in the Z-axis direction. The second wall 42 intersects with both the fourth wall 44 and the fifth wall 45. The third wall 43 also intersects with both the fourth wall 44 and the fifth wall 45. In the use state of the printer 3, the fourth wall 44 corresponds to a bottom of the tank 9.
In the printer 3 shown in
In the planar view, the first wall 41 shown in
The air chamber 37 is provided on an opposite side to the recess 35A-side of the fifth wall 45. The air chamber 37 is protruded from the fifth wall 45 on an opposite side to the fourth wall 44-side of the fifth wall 45, i.e., on the +Z-axis direction side of the fifth wall 45. The air chamber 37 includes a first wall 41, the fifth wall 45, a sixth wall 46, a seventh wall 47 and an eighth wall 48. The first wall 41 of the container portion 35 is identical with the first wall 41 of the air chamber 37. In other words, according to this embodiment, the container portion 35 and the air chamber 37 share the first wall 41. The container portion 35 and the air chamber 37 also hare part of the fifth wall 45.
The sixth wall 46 is protruded from the fifth wall 45 on the opposite side to the fourth wall 44-side of the fifth wall 45, i.e., on the +Z-axis direction side of the fifth wall 45. The seventh wall 47 is protruded from the fifth wall 45 on the opposite side to the fourth wall 44-side of the fifth wall 45, i.e., on the +Z-axis direction side of the fifth wall 45. The sixth wall 46 and the seventh wall 47 are located to face each other across the first wall 41 of the air chamber 37 in the Y-axis direction. The eighth wall 48 is located to face the fifth wall 45 across the first wall 41 of the air chamber 37 in the Z-axis direction. The sixth wall 46 intersects both the fifth wall 45 and the eighth wall 48. The seventh wall 47 also intersects both the fifth wall 45 and the eighth wall 48.
In the planar view, the first wall 41 of the air chamber 37 is surrounded by the fifth wall 45, the sixth wall 46, the seventh wall 47 and the eighth wall 48. The fifth wall 45, the sixth wall 46, the seventh wall 47 and the eighth wall 48 are protruded from the first wall 41 in the +X-axis direction. Accordingly, the air chamber 37 is formed in a recessed shape by the first wall 41 as bottom and the fifth wall 45, the sixth wall 46, the seventh wall 47 and the eighth wall 48. A recess 37A of the air chamber 37 is formed by the first wall 41, the fifth wall 45, the sixth wall 46, the seventh wall 47 and the eighth wall 48. The recess 37A is formed to be concave in the −X-axis direction. The recess 37A is open in the +X-axis direction, i.e., on the sheet member 33-side. The recess 35A and the recess 37A are separated from each other by the fifth wall 45. The amounts of protrusion of the second wall 42 to the eighth wall 48 from the first wall 41 are set to an identical protrusion amount, except a cutout 45A of the fifth wall 45. The cutout 45A of the fifth wall 45 is located on the first wall 41-side of a sheet member 33-side end of the fifth wall 45.
The second wall 42 and the sixth wall 46 form a step in the Y-axis direction. The sixth wall 46 is located on the third wall 43-side of the second wall 42, i.e., on the +Y-axis direction side of the second wall 42. The third wall 43 and the seventh wall 47 form a step in the Y-axis direction. The seventh wall 47 is located on the second wall 42-side of the third wall 43, i.e., on the −Y-axis direction side of the third wall 43. In the planar view of the first wall 41, an inlet port 51 is provided in the fifth wall 45 between the second wall 42 and the sixth wall 46. A supply port 53 is provided in the third wall 43. An air communication port 55 is provided in the seventh wall 47. The inlet port 51 and the supply port 53 are respectively arranged to make outside of the casing 31 communicate with inside of the recess 35A. The air communication port 55 is arranged to make outside of the casing 31 communicate with inside of the recess 37A.
A projecting portion 59 is provided inside of the recess 35A. The projecting portion 59 is provided on the fifth wall 45-side of the fourth wall 44. The projecting portion 59 is protruded vertically upward to be convex from the fourth wall 44 as the bottom of the tank 9 toward the fifth wall 45. The projecting portion 59 is extended along the fourth wall 44, i.e., in the Y-axis direction. According to this embodiment, the projecting portion 59 is continuous with the first wall 41. In other words, according to this embodiment, the projecting portion 59 is regarded to be protruded from the first wall 41 toward the sheet member 33, i.e., from the first wall 41 in the +X-axis direction. The amount of protrusion of the projecting portion 59 in the X-axis direction from the first wall 41 is smaller than the protrusion amounts of the second wall 42 to the eighth wall 48.
The projecting portion 59 has a first surface 61, a second surface 62, a third surface 63, a fourth surface 64 and a fifth surface 65. The first surface 61 faces the +X-axis direction to be opposed to the sheet member 33. The first surface 61 intersects with the fourth wall 44. The second wall 62 faces the +Z-axis direction to be opposed to the fifth wall 45. The second surface 62 intersects with the first wall 41, the third wall 43 and the first surface 61. There is a space between the second surface 62 and the fifth wall 45. The third surface 63 faces the −Y-axis direction to be opposed to the second wall 42. The third surface 63 intersects the first wall 41, the fourth wall 44, the first surface 61 and the second surface 62. There is a space between the third surface 63 and the second wall 42.
The fourth surface 64 faces the +Y-axis direction to be opposed to the third wall 43. The fourth surface 64 intersects with the fourth wall 44, the first surface 61 and the second surface 62. There is a space between the fourth surface 64 and the third wall 43. The fifth surface 65 faces the +X-axis direction to be opposed to the sheet member 33. The fifth surface 65 intersects with the third wall 43, the fourth wall 44, the second surface 62 and the fourth surface 64. The fifth surface 65 and the first surface 61 form a step. The fifth surface 65 is located on the first wall 41-side of the first surface 61 in the X-axis direction. In the use state of the printer 3, the second surface 62 located on the fifth wall 45-side of the fourth wall 44 as the bottom of the tank 9 corresponds to the top of the projecting portion 59.
A space in which the third surface 63 overlaps the second wall 42 is provided between the projecting portion 59 and the second wall 42, as a first liquid reservoir 67. According to this embodiment, the second wall 42 opposed to the projecting portion 59 across the first liquid reservoir 67 serves as a visual recognition area to allow for visual recognition of the remaining amount of ink. A space in which the fourth surface 64 overlaps the third wall 43 is provided between the projecting portion 59 and the third wall 43, as a second liquid reservoir 68. The supply port 53 is arranged to make the second liquid reservoir 68 communicate with outside of the casing 31. The supply port 53 is provided in an area of the third wall 43 that overlaps the fourth wall 64. Accordingly, the supply port 53 makes outside of the casing 31 communicate with the second liquid reservoir 68. In other words, the container portion 35 communicates with outside of the casing 31 via the supply port 53 through an outer area outside of an overlapping area that overlaps the projecting portion 59 in the container portion 35 in the planar view of the fourth wall 44. Additionally, the supply port 53 is located on the fourth wall 44-side of the second surface 62 which corresponds to the top of the projecting portion 59.
The first liquid reservoir 67 and the second liquid reservoir 68 are terms representing the spaces placed in the container portion 35 as described above. Even when no liquid is present in the container portion 35, these spaces are called first liquid reservoir 67 and second liquid reservoir 68.
As shown in
In the state that the sheet member 33 is joined with the casing 31, there is a clearance between the sheet member 33 and the cutout 45A. The clearance between the sheet member 33 and the cutout 45A makes the recess 37A and the recess 35A communicate with each other. In the state that the sheet member 33 is joined with the casing 31, there is a clearance between the sheet member 33 and the projecting portion 59. The clearance between the sheet member 33 and the projecting portion 59 connects the first liquid reservoir 57 with the second liquid reservoir 68. In the description below, an area surrounded by the first surface 61 of the projecting portion 59, the fourth wall 44 and the sheet member 33 is called a communication path 69. The communication path 69 is located vertically below the top of the projecting portion 59. The first liquid reservoir 67 and the second liquid reservoir 68 communicate with each other by the communication path 69. A sectional area of the communication path 69 in an XZ plane is smaller than a sectional area of the first liquid reservoir 67 in the XZ plane and a sectional area of the second liquid reservoir 68 in the XZ plane.
In the tank 9, as shown in
The ink 75 in the tank 9 is supplied to the liquid ejection head 19 as described above. When the ink 75 in the recess 35A of the tank 9 is consumed and the remaining amount of the ink 75 reaches a lower limit, the operator is allowed to refill the tank 9 with ink newly supplied from the inlet port 51. According to this embodiment, as shown in
The configuration of refilling the ink 75 is, however, not limited to this configuration, but the window 14 may be configured to be openable and closable relative to the tank 9 in
According to this embodiment, the supply port 53 corresponds to the outlet port, the third wall 43 corresponds to the first side wall, and the second wall 42 corresponds to the second side wall.
According to this embodiment, the ink 75 in the container portion 35 is visible through the second wall 42 of the tank 9. The window 14 provided in the housing 7 of the printer 3 overlaps the second wall 42 of the tank 9, so that the liquid level 75A of the ink 75 in the container portion 35 is visible from outside of the housing 7. Accordingly, the configuration of this printer 3 enables the remaining amount of the ink 75 in the tank 9 to be visually recognized from outside of the housing 7.
According to this embodiment, the projecting portion 59 protruded from the fourth wall 44 that is the bottom of the tank 9 is provided in the container portion 35. The projecting portion 59 raises the ink 75 in the container portion 35 and is thus likely to heighten the position of the liquid level 75A of the ink 75 in the container portion 35. For example, even when the attitude of the tank 9 is inclined such that the second wall 42 is lower than the third wall 43 in the vertical direction as shown in
In this tank 9, the supply port 53 provided to discharge the ink 75 from the container portion 35 to outside of the casing 31 communicates with outside of the casing 31 through the outer area outside of the overlapping area that overlaps the projecting portion 59 in the container portion 35 in the planar view of the fourth wall 44. This configuration causes the ink 75 raised by the projecting portion 59 to be discharged out of the casing 31.
In this tank 9, the second wall 42 has optical transparency, so that the raised ink 75 is visible through an area having optical transparency. This facilitates recognition of the remaining amount of the ink 75 in the container portion 35. More specifically, the configuration of this tank 9 raises the ink 75 in the container portion 35 and is thus likely to discharge the raised ink 75 out of the casing 31 and to make the remaining amount of the raised ink 75 readily recognizable from outside of the casing 31. As a result, this enables the remaining amount of the ink 75 in the tank 9 to be recognized accurately.
According to this embodiment, the supply port 53 is located on the fourth wall 44-side of the second surface 62 that corresponds to the top of the projecting portion 59. In other words, the supply port 53 is located on the side of the bottom to be below the top of the projecting portion 59. This configuration is more likely to discharge the ink 75 remaining in the container portion 35 to outside of the casing 31.
According to this embodiment, the projecting portion 59 is continuous with the third wall 43. This configuration is likely to increase the ratio of the area of the projecting portion 59 to the area of the fourth wall 44 in the planar view of the fourth wall 44 and is thus more likely to raise the ink 75 in the container portion 35.
According to this embodiment, the first liquid reservoir 67 is provided between the projecting portion 59 and the second wall 42, and the second liquid reservoir 68 is provided between the projecting portion 59 and the third wall 43. The ink 75 is thus likely to be accumulated in the first liquid reservoir 67 and the second liquid reservoir 68. This configuration enables the ink 75 accumulated in the first liquid reservoir 67 to be visible from the visual recognition portion of the liquid ejection apparatus through the second wall 42, while enabling the ink 75 accumulated in the second liquid reservoir 68 to be discharged from the supply port 53.
The joint position at which the supply port 53 is connected with the supply tube 16 is located on the bottom side to be lower than the top of the projecting portion 59 in
The following describes a tank 9 according to a second embodiment. The tank 9 of the second embodiment includes a casing 81 and a sheet member 82 as shown in
The casing 81 has a ninth wall 49 and a tenth wall 50, in addition to the first wall 41 to the eighth wall 48. In the casing 81, the fourth wall 44 extended in the Y-axis direction starts from the second wall 42 and ends at a position on the second wall 42-side of the third wall 43. In other words, the length of the fourth wall 44 in the Y-axis direction is shorter in the casing 81 than that in the casing 31. Accordingly, the length of the third wall 43 in the Z-axis direction is shorter in the casing 81 than that in the casing 31.
The ninth wall 49 is protruded from the first wall 41 toward the sheet member 82, i.e., from the first wall 41 in the +X-axis direction. The ninth wall 49 is located between the fifth wall 45 and the fourth wall 44 in the Z-axis direction. The ninth wall 49 is arranged to face the fifth wall 45. The ninth wall 49 and the fifth wall 45 are located to be opposed to each other across the first wall 41 in the Z-axis direction. The ninth wall 49 intersects with the first wall 41 and the third wall 43. The ninth wall 49 and the fourth wall 44 form a step in the Z-axis direction. The ninth wall 49 is located on the fifth wall 45-side of the fourth wall 44 in the Z-axis direction.
The tenth wall 50 is protruded from the fifth surface 65 of the projecting portion 59 toward the sheet member 82, i.e., from the fifth surface 65 in the +X-axis direction. The tenth wall 50 is located to face the second wall 42 across the projecting portion 59 in the Y-axis direction. The supply port 53 is provided in the tenth wall 50. The tenth wall 50 intersects with the fourth wall 44 and the ninth wall 49. In the casing 81, in the planar view, a recess 35A is surrounded by the second wall 42, the third wall 43, the fourth wall 44, the fifth wall 45, the ninth wall 49 and the tenth wall 50. A container portion 35 is formed in a recessed shape by the first wall 41 as bottom and the second wall 42, the third wall 43, the fourth wall 44, the fifth wall 45, the ninth wall 49 and the tenth wall 50. In the casing 81, the recess 35A is formed by the first wall 41, the second wall 42, the third wall 43, the fourth wall 44, the fifth wall 45, the ninth wall 49 and the tenth wall 50. In the casing 81, the second liquid reservoir 68 is provided between the projecting portion 59 and the tenth wall 50.
The second embodiment has the similar advantageous effects to those of the first embodiment. Additionally, the distance between the second liquid reservoir 68 and the first liquid reservoir 67 in the Y-axis direction is shorter in the tank 9 of the second embodiment having the above configuration than in the tank 9 of the first embodiment. The shorter length between the second liquid reservoir 68 and the first liquid reservoir 67 is likely to reduce a height difference in the vertical direction between the first liquid reservoir 67 and the second liquid reservoir 68 accompanied with a change in attitude of the tank 9. Reduction of the height difference in the vertical direction between the first liquid reservoir 67 and the second liquid reservoir 68 enables the remaining amount of the ink 75 in the tank 9 to be more accurately recognized.
For example, even when the attitude of the tank 9 is inclined such that the second wall 42 is lower than the tenth wall 50 in the vertical direction as shown in
[Modification 1]
In each of the first embodiment and the second embodiment described above, the projecting portion 59 may include an inclined surface 91 that is inclined to the first wall 41 and the fourth wall 44 as shown in
[Modification 2]
In each of the first embodiment and the second embodiment described above, the projecting portion 59 may include a curved surface 92 as shown in
[Modification 3]
In each of the first embodiment and the second embodiment described above, the projecting portion 59 may be separated from the first wall 41 as shown in
In the respective embodiments described above, the liquid ejection apparatus may be a liquid ejection apparatus that sprays, ejects or applies and thereby consumes a liquid other than ink. The liquid ejected in the form of very small amounts of droplets from the liquid ejection apparatus may be in a granular shape, a teardrop shape or a tapered threadlike shape. The liquid herein may be any material consumed in the liquid ejection apparatus. The liquid may be any material in the liquid phase and may include liquid-state materials of high viscosity or low viscosity, sols, aqueous gels and other liquid-state materials including inorganic solvents, organic solvents, solutions, liquid resins and liquid metals (metal melts). The liquid is not limited to the liquid state as one of the three states of matter but includes solutions, dispersions and mixtures of the functional solid material particles, such as pigment particles or metal particles, solved in, dispersed in or mixed with a solvent. Typical examples of the liquid include ink described in the above embodiments and liquid crystal. The ink herein includes general water-based inks and oil-based inks, as well as various liquid compositions, such as gel inks and hot-melt inks. A concrete example of the liquid ejection apparatus may be a liquid ejection apparatus that ejects a liquid in the form of a dispersion or a solution containing a material such as an electrode material or a color material used for production of liquid crystal displays, EL (electroluminescent) displays, surface emission displays and color filters. The liquid ejection apparatus may also be a liquid ejection apparatus that ejects a bioorganic material used for manufacturing biochips, a liquid ejection apparatus that is used as a precision pipette and ejects a liquid as a sample, a printing apparatus or a microdispenser. Additionally, the liquid ejection apparatus may be a liquid ejection apparatus for pinpoint ejection of lubricating oil on precision machines such as machines and cameras or a liquid ejection apparatus that ejects a transparent resin solution of, for example, an ultraviolet curable resin, onto a substrate to manufacture a hemispherical microlens (optical lens) used for optical communication elements and the like. As another example, the liquid ejection apparatus may be a liquid ejection apparatus that ejects an acidic or alkaline etching solution to etch a substrate or the like.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2013-010925 | Jan 2013 | JP | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2014/000151 | 1/15/2014 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2014/115506 | 7/31/2014 | WO | A |
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