Cartridge

Abstract

Provided is a cartridge capable of suppressing the enlargement of a liquid consumption device in the width direction. A cartridge (100) is provided with: a first storage chamber (111C) and a second storage chamber (111D) defined by a first surface and a second surface facing each other in the width direction of a liquid consumption device (10); a cylindrical first communication part (113C) for communicating the inside and the outside of the first storage chamber (111C); and a cylindrical second communication section (113D) that communicates the inside and the outside of the second storage chamber (111D). The center (C3) of the first communication section (113C) in the width direction is offset in the width direction with respect to the center (D3) of the first storage chamber (111C) in the width direction. The center (C4) of the second communication section (113D) in the width direction is offset in the width direction with respect to the center (D4) of the second storage chamber (111D) in the width direction.

Description

Technical Field

[0001] The invention relates to a box connected with a liquid bottle. Background Art

[0002] Patent document 1 discloses a three-color box. The three-color box has three storage chambers for storing any one of the three colors of ink, cyan, magenta, and yellow. The three storage chambers are arranged along the width direction of the liquid consumption device provided with the three-color box. An injection port connecting the inside and outside of the storage chamber is provided on the upper wall of the three-color box. There are three injection ports. The three injection ports are connected to any one of the three storage chambers. The three injection ports are arranged at intervals in the width direction. The three injection ports are covered by a cover arranged on the upper wall of the three-color box. Three covers for closing any one of the three injection ports are fixed on the lower surface of the cover. The cover can be rotated to a closed position in which the three injection ports are closed by the three covers and an open position in which all the three injection ports are open.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2023-99716

[0006] Technical problem to be solved by the invention

[0007] In the three-color cartridge of Patent Document 1, for example, from the viewpoint of the ease of ink injection using the liquid bottle and the ease of mounting the cover, the inner diameter of each injection port needs to be large to a certain extent. Therefore, the cover covering the three injection ports is likely to be large in the width direction, or since each injection port is arranged on the upper wall of the three-color cartridge, each storage chamber is likely to be large in the width direction. As a result, there is a problem that the liquid consuming device equipped with the cartridge is large in the width direction. Summary of the invention

[0008] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a cartridge capable of suppressing an increase in size of a liquid consuming device in a width direction.

[0009] Technical means for solving technical problems

[0010] (1) The present invention relates to a box that can be connected to a liquid bottle that stores liquid and is provided in a liquid consumption device that consumes liquid. The box includes: a first storage chamber and a second storage chamber that are arranged in the width direction of the liquid consumption device and are respectively defined by a first surface and a second surface that are opposite to each other in the width direction; a first connecting portion that can be connected to the liquid bottle to connect the inside and outside of the first storage chamber; and a second connecting portion that can be connected to the liquid bottle to connect the inside and outside of the second storage chamber. The center of the first connecting portion in the width direction is offset in the width direction relative to the center of the first storage chamber in the width direction. The center of the second connecting portion in the width direction is offset in the width direction relative to the center of the second storage chamber in the width direction.

[0011] Compared to the case where the center of the first connecting portion coincides with the center of the first storage chamber in the width direction, and the center of the second connecting portion coincides with the center of the second storage chamber in the width direction, the interval in the width direction between the center of the first connecting portion in the width direction and the center of the second connecting portion in the width direction can be shortened. Therefore, for example, in the case where a cover for covering the first connecting portion and the second connecting portion is provided, the length of the cover in the width direction can be shortened. Therefore, it is possible to suppress the liquid consumption device from being enlarged in the width direction.

[0012] (2) It may be that in the direction from the first storage chamber toward the second storage chamber along the width direction, the offset of the center of the first communicating portion relative to the center of the first storage chamber is different from the offset of the center of the second communicating portion relative to the center of the second storage chamber.

[0013] Compared with the case where the center of the first communicating portion is offset relative to the center of the first storage chamber in the direction from the second storage chamber toward the first storage chamber, and the center of the second communicating portion is offset relative to the center of the second storage chamber in the direction from the first storage chamber toward the second storage chamber, the distance along the width direction between the center of the first communicating portion and the center of the second communicating portion can be shortened.

[0014] (3) The length of the second storage chamber along the width direction may be longer than the length of the first storage chamber along the width direction.

[0015] Even if a portion of the first communicating portion is located across from the first storage chamber to the second storage chamber in the width direction, it is easy to restrict the second communicating portion to within the width range of the second storage chamber in the width direction.

[0016] (4) The first storage chamber may store color ink, and the second storage chamber may store black ink.

[0017] Since the black ink, which is consumed in large quantities, is stored in the second storage chamber having a large capacity, the number of times the ink is replenished to the cartridge can be reduced.

[0018] (5) The first communicating portion may include a first injection port for injecting liquid. The second communicating portion may include a second injection port for injecting liquid.

[0019] (6) Alternatively, the first communicating portion may include a first barrel wall that surrounds the first injection port and to which a cover that closes the opening of the first barrel wall can be mounted. Alternatively, the second communicating portion may include a second barrel wall that surrounds the second injection port and to which a cover that closes the opening of the second barrel wall can be mounted. Alternatively, the distance along the width direction from the first surface of the first storage chamber to the center of the width direction of the first barrel wall may be different from the distance along the width direction from the first surface of the second storage chamber to the center of the width direction of the second barrel wall. Alternatively, the position of a portion of the first barrel wall may coincide with the position of the second storage chamber in the width direction.

[0020] Since the first barrel wall surrounds the first injection port, the length of the first communicating portion in the width direction is easy to be lengthened. Since the second barrel wall surrounds the second injection port, the length of the second communicating portion in the width direction is easy to be lengthened. In the above structure, since the position of a part of the first barrel wall coincides with the position of the second storage chamber in the width direction, it is located at a position spanning from the first storage chamber to the second storage chamber. Therefore, even if the length of the first communicating portion in the width direction is lengthened, the first communicating portion can be easily configured. Even if the length of the second communicating portion in the width direction is lengthened, the second communicating portion can be easily limited to the width range of the second storage chamber in the width direction.

[0021] (7) Alternatively, the first communicating portion may include a first nozzle that communicates the inside and outside of the first storage chamber. Alternatively, the second communicating portion may include a second nozzle that communicates the inside and outside of the second storage chamber. Alternatively, the first barrel wall may surround the first nozzle and the first injection port. Alternatively, the second barrel wall may surround the second nozzle and the second injection port.

[0022] Since the first barrel wall surrounds the first nozzle and the first injection port, the length of the first barrel wall in the width direction is easier to be lengthened. Since the second barrel wall surrounds the second nozzle and the second injection port, the length of the second barrel wall in the width direction is easier to be lengthened. In the above structure, even if the length of the first communicating part in the width direction is lengthened, the first communicating part can be easily configured. Even if the length of the second communicating part in the width direction is lengthened, the second communicating part can be easily limited to the width range of the second storage chamber in the width direction.

[0023] (8) Alternatively, in the direction in which the first nozzle and the first injection port are arranged, the center of the opening of the first barrel wall is offset toward the first injection port relative to the center of the opening of the first nozzle. Alternatively, in the direction in which the second nozzle and the second injection port are arranged, the center of the opening of the second barrel wall is offset toward the second injection port relative to the center of the opening of the second nozzle.

[0024] In the direction in which the first nozzle and the first injection port are arranged, since the space for arranging the first injection port between the outer circumferential surface of the first nozzle and the inner circumferential surface of the first barrel wall becomes larger, the first injection port can be arranged between the outer circumferential surface of the first nozzle and the inner circumferential surface of the first barrel wall even if the opening of the first barrel wall is reduced. Similarly, the second injection port can be arranged between the outer circumferential surface of the second nozzle and the inner circumferential surface of the second barrel wall even if the opening of the second barrel wall is reduced.

[0025] (9) Alternatively, the box may include a partition wall having the second surface defining the first storage chamber and the first surface defining the second storage chamber, and separating the first storage chamber from the second storage chamber in the width direction. Alternatively, the box may include a visual confirmation surface that enables visual confirmation of the first storage chamber and the second storage chamber from the front in a front-rear direction orthogonal to the width direction and the up-down direction. Alternatively, the visual confirmation surface may include a concave surface that is recessed from a portion that coincides with the partition wall in the width direction. Alternatively, the concave surface may include a first inclined surface that faces the width direction.

[0026] Since the first storage chamber and the second storage chamber are adjacent to each other in the width direction via the partition wall, it is difficult to observe the liquid level heights of both the first storage chamber and the second storage chamber from the width direction. In the above structure, the user can check the inside of the box through the first inclined surface even from the width direction of the box, so the user can easily check the liquid level heights of both the first storage chamber and the second storage chamber.

[0027] (10) It may also be that the box comprises: a second inclined surface, on which the first connecting portion is located, and the second inclined surface is inclined downward relative to the front-to-back direction as it moves forward in the front-to-back direction orthogonal to the width direction and the up-down direction; and a rib, which is located forward of the first connecting portion in the second inclined surface, protrudes upward from the second inclined surface and extends in the width direction.

[0028] When the nozzle of the liquid bottle is pulled out from the first connecting portion, even if the liquid flows down from the nozzle of the liquid bottle, the liquid is blocked by the rib after flowing along the second inclined surface. Even if the liquid blocked by the rib is stored in the rib, it will flow along the rib in the width direction. Therefore, it is possible to prevent the front surface of the liquid bottle from being contaminated by the liquid.

[0029] (11) The box may include a mark located on the visual confirmation surface and indicating the height of the liquid level of the liquid stored in the first storage chamber. The center of the first communication portion in the width direction may be offset in the width direction relative to the center of the mark in the width direction.

[0030] (12) The present invention relates to a box that can be connected to a liquid bottle that stores liquid and is provided in a liquid consumption device that consumes liquid. The box includes: a first storage chamber and a second storage chamber that are arranged in a width direction of the liquid consumption device and are respectively defined by a first surface and a second surface that are opposite to each other in the width direction; a first connecting portion that connects the inside and outside of the first storage chamber; and a second connecting portion that connects the inside and outside of the second storage chamber. The position of a part of the first connecting portion in the width direction coincides with the position of the second storage chamber.

[0031] Since the position of a part of the first connecting portion coincides with the position of the second storage chamber in the width direction, it is located at a position spanning from the first storage chamber to the second storage chamber in the width direction. Therefore, even if the length of the first storage chamber in the width direction does not increase, the first connecting portion can be arranged. Therefore, it is possible to suppress the liquid consumption device from being enlarged in the width direction.

[0032] (13) The present invention relates to a box that can be connected to a liquid bottle that stores liquid and is provided in a liquid consumption device that consumes liquid. The box includes: a first storage chamber and a second storage chamber that are arranged in a width direction of the liquid consumption device and are respectively defined by a first surface and a second surface that are opposite to each other in the width direction; a third communication portion that connects the inside and the outside of the first storage chamber; and a fourth communication portion that connects the inside and the outside of the second storage chamber. The center of the third communication portion in the width direction is offset from the center of the first storage chamber in the width direction. The center of the fourth communication portion in the width direction is offset from the center of the second storage chamber in the width direction. In the direction from the first storage chamber toward the second storage chamber along the width direction, the offset of the center of the third communication portion with respect to the center of the first storage chamber is different from the offset of the center of the fourth communication portion with respect to the center of the second storage chamber.

[0033] Compared with the case where the center of the first communicating portion is offset from the center of the first storage chamber in the direction from the second storage chamber toward the first storage chamber, and the center of the second communicating portion is offset from the center of the second storage chamber in the direction from the first storage chamber toward the second storage chamber, the interval in the width direction between the center of the first communicating portion in the width direction and the center of the second communicating portion in the width direction can be shortened. Therefore, in the case where a cover for covering the third communicating portion and the fourth communicating portion is provided, the length of the cover in the width direction can be shortened. Therefore, it is possible to suppress the liquid consumption device from being enlarged in the width direction.

[0034] Effects of the Invention

[0035] According to the present invention, it is possible to suppress an increase in size in the width direction of the liquid consuming device provided with the cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a perspective view of the appearance of the multifunction peripheral 10 .

[0037] Figure 2 It is a longitudinal sectional view schematically showing the internal structure of the printing unit 11 .

[0038] Figure 3 It is a plan view showing the arrangement of the carriage 23 and the ink cartridge 100 .

[0039] Figure 4 It is a perspective view of the ink cartridge set 51.

[0040] Figure 5 It is a perspective view of the ink cartridge 100 .

[0041] Figure 6 It is a top view of the box cover 127.

[0042] Figure 7 It is a front view of the box cover 127.

[0043] Figure 8 It is a right side view of the box cover 127.

[0044] Fig. 9 It is a rear view of the box cover 127.

[0045] Fig.10 It is the bottom view of the box cover 127.

[0046] Fig.11 It is a longitudinal sectional view of the box cover 127.

[0047] Fig.12 It is a partial cross-sectional view showing a state where the box cover 127 is attached to the four annular walls 122A, 122B, 122C, and 122D.

[0048] Fig.13 This is a longitudinal section showing a state where the case cover 127 is attached to the annular wall 122A.

[0049] Fig.14 It is a perspective view of the liquid bottle 80 .

[0050] Fig.15 It is a schematic diagram showing the center A1 of the protrusion 94 .

[0051] Fig.16 It is a longitudinal sectional view of the liquid bottle 80 in a state where the valve 161 is located at the closed position.

[0052] Fig.17 It is a longitudinal sectional view of the liquid bottle 80 in a state where the valve 161 is located at the open position.

[0053] Fig.18 It is a cross-sectional view showing the area S1 of the air flow path G and the area S2 of the ink flow path F.

[0054] Fig.19 It is a cross-sectional view showing that the centers C1, C2, C3, C4 of the annular walls 122A, 122B, 122C, 122D are offset to the right relative to the centers D1, D2, D3, D4 of the ink chambers 111A, 111B, 111C, 111D, respectively.

[0055] Fig. 20 1 is a schematic diagram showing the positional relationship between the box tube body 115C and the communication port 119C on the inner side of the annular wall 122C. Fig. 20 (A) is a diagram showing the positional relationship when the center K3 of the annular wall 122C is located forward of the center T3 of the box tube body 115C. Fig. 20 (B) is a diagram showing the positional relationship when the center K3 of the annular wall 122C coincides with the center T3 of the box tube body 115C.

[0056] Fig.21 This is a cross-sectional view of a modified example in which the four annular walls 122A, 122B, 122C, and 122D are omitted.

[0057] Fig. 22 It is a cross-sectional view of a modified example in which the four annular walls 122A, 122B, 122C, and 122D and the four box tube bodies 115A, 115B, 115C, and 115D are omitted.

[0058] Fig.23 It is a cross-sectional view of a modified example in which the four annular walls 122A, 122B, 122C, and 122D and the four communication ports 119A, 119B, 119C, and 119D are omitted.

[0059] Fig.24 This is a cross-sectional view of a modified example in which four ink chambers 111A, 111B, 111C, and 111D are provided at intervals in the left-right direction.

[0060] Fig.25 It is a cross-sectional view showing a case cover 127 according to a modified example.

[0061] Fig.26 This is a cross-sectional view of a modified example in which the center C2 of the annular wall 122B is offset to the left relative to the center D2 of the ink chamber 111B, and the center C3 of the annular wall 122C is offset to the right relative to the center D3 of the ink chamber 111C.

[0062] Fig. 27 It is a cross-sectional view of a modified example in which the left-right centers C15, C16, C17, and C18 of the atmosphere communication ports 112A, 112B, 112C, and 112D are offset from the centers D1, D2, D3, and D4 of the ink chambers 111A, 111B, 111C, and 111D.

[0063] Fig.28 It is a cross-sectional view of a modified example in which the left-right centers C21, C22, C23, and C24 of the outflow tubes 124A, 124B, 124C, and 124D are offset from the centers D1, D2, D3, and D4 of the ink chambers 111A, 111B, 111C, and 111D.

[0064] Fig.29 It is a cross-sectional view of a modified example in which the atmosphere communication ports 112A, 112B, 112C, and 112D are connected to the atmosphere communication passages 181A, 181B, 181C, and 181D.

[0065] Fig.30 It is a cross-sectional view showing a modified example of a method of connecting the ink tube 32 and the outflow tubes 124A, 124B, 124C, and 124D respectively by the connecting member 171.

[0066] Explanation of symbols

[0067] 10…Compound machine (liquid consuming device)

[0068] 80…Liquid bottle

[0069] 100…Ink cartridges (boxes)

[0070] 101A…Front surface (visual confirmation surface)

[0071] 104A ... inclined surface (second inclined surface)

[0072] 107C…Partition wall

[0073] 107CL…Left surface (second surface)

[0074] 107CR…right surface (first side)

[0075] 109…Weir wall (rib)

[0076] 111C…Ink chamber (first storage chamber)

[0077] 111D…Ink chamber (second storage chamber)

[0078] 112B…Atmosphere communication port (third communication portion)

[0079] 112C…Atmosphere communication port (fourth communication portion)

[0080] 113C ... communication portion (first communication portion)

[0081] 113D ... communication portion (second communication portion)

[0082] 115C...Box body (first nozzle)

[0083] 115D...Box body (second nozzle)

[0084] 119C…Communication port (first injection port)

[0085] 119D…Communication port (second injection port)

[0086] 122C…Annular wall (first cylinder wall)

[0087] 122D… annular wall (second cylinder wall)

[0088] 124B...outflow pipe (third connecting portion)

[0089] 124C...outflow pipe (fourth connecting portion)

[0090] 151…Concave

[0091] 151A…Left inclined surface (first inclined surface)

[0092] 152C…on mark (mark). DETAILED DESCRIPTION

[0093] The following describes an embodiment of the present invention. In addition, the embodiment described below is only an example of the present invention, and the embodiment of the present invention can of course be appropriately changed within the scope of not changing the main purpose of the present invention. In addition, in the following description, one direction from the starting point of a single arrow toward the end point represents the direction, and the two directions of a double arrow represent the direction. That is, the direction is a component of the direction. Upward and downward are respectively a component of the up and down direction, and are opposite to each other. Leftward and rightward are respectively a component of the left and right directions, and are opposite to each other. Forward and backward are respectively a component of the front and back directions, and are opposite to each other. In addition, in the present embodiment, the up and down direction is equivalent to the gravity direction, and the front and back direction and the left and right direction are equivalent to the horizontal direction.

[0094] The up-down direction is defined based on the state or posture in which the multifunction device 10 is set to be usable, the front-back direction is defined by taking the side where the opening 13 of the multifunction device 10 is set as the front side, and the left-right direction is defined by observing the multifunction device 10 from the front side. The left-right direction is an example of the width direction. Figure 1 The state is also recorded as "usage state". Figure 1 The posture of the multifunction device 10 is also described as a “use posture.” The front side of the multifunction device 10 where the opening 13 is provided is referred to as the front surface.

[0095] [Overall Structure of the Multifunction Device 10]

[0096] like Figure 1 As shown in FIG. 1 , the multifunction device 10 has a substantially rectangular housing 8. The multifunction device 10 has a scanning unit 9 and a printing unit 11 in the internal space of the housing 8. The scanning unit 9 is located at the upper part of the internal space of the housing 8. The scanning unit 9 has a scanning function. The printing unit 11 is located below the scanning unit 9 in the internal space of the housing 8. The printing unit 11 has a printing function. The printing unit 11 prints to the printer by inkjet recording. Figure 2 The paper 12 shown records the image. Figure 2 As shown, the printing unit 11 includes a supply unit 15, a supply tray 20, a discharge tray 21, a conveyance path 65, a conveyance roller unit 54, a recording unit 24, a discharge roller unit 55, a platen 42, and an ink cartridge set 51. The multifunction device 10 is an example of a liquid consuming device.

[0097] [Supply tray 20, discharge tray 21]

[0098] like Figure 1 As shown in FIG. 1 , the opening 13 is located at the center of the left-right direction on the front surface of the multifunction device 10. The supply tray 20 moves in the front-rear direction through the opening 13 by the user's operation. Figure 2 As shown, the supply tray 20 supports a plurality of stacked sheets of paper 12. The discharge tray 21 is located above the supply tray 20. The discharge tray 21 moves forward and backward together with the supply tray 20. The discharge tray 21 supports the sheets of paper 12 discharged by the discharge roller unit 55.

[0099] [Supply unit 15]

[0100] The supply unit 15 supplies the paper 12 supported by the supply tray 20 to the conveying path 65. Figure 2 As shown in FIG. 1 , the supply unit 15 includes a supply roller 25, a supply arm 26, and a shaft 27. The supply roller 25 is rotatably supported at the top end portion of the supply arm 26. The supply roller 25 is driven by a conveying motor (not shown) to rotate in a direction in which the paper 12 is conveyed in the conveying direction 16. Hereinafter, the rotation of the supply roller 25, the conveying roller 60, and the discharge roller 62 in the direction in which the paper 12 is conveyed in the conveying direction 16 is referred to as "positive rotation". The supply arm 26 is rotatably supported by a shaft 27 supported by a frame of the printing unit 11. The supply arm 26 is urged to rotate toward the supply tray 20 side by its own weight or an elastic force based on a spring or the like.

[0101] [Conveying path 65]

[0102] like Figure 2 As shown, the conveying path 65 is a space defined by, for example, the outer guide member 18 and the inner guide member 19 that face each other at a predetermined interval. The conveying path 65 extends from the rear end of the supply tray 20 to the rear of the printing unit 11. The conveying path 65 extends from the bottom to the top behind the printing unit 11 and makes a U-turn, and reaches the discharge tray 21 via the space between the recording unit 24 and the platen 42. Figure 2 and Figure 3 As shown in FIG. 1 , the conveying path 65 between the conveying roller portion 54 and the discharge roller portion 55 is located in the substantially central portion of the multifunction device 10 in the left-right direction and extends in the front-back direction. The conveying direction 16 of the paper 12 on the conveying path 65 is Figure 2 Indicated by a single-dot dash arrow.

[0103] [Conveyor Roller Section 54]

[0104] like Figure 2As shown, the conveying roller section 54 is located upstream of the recording section 24 in the conveying direction 16. The conveying roller section 54 includes a conveying roller 60 and a pinch roller 61. The conveying roller 60 and the pinch roller 61 are opposite to each other in the up-down direction. The conveying roller 60 is driven by the conveying motor to rotate. The pinch roller 61 rotates along with the rotation of the conveying roller 60. When the conveying roller 60 rotates forwardly due to the forward rotation of the conveying motor, the paper 12 is pinched by the conveying roller 60 and the pinch roller 61 and conveyed in the conveying direction 16.

[0105] [Discharge Roller Section 55]

[0106] like Figure 2 As shown, the discharge roller section 55 is located downstream of the recording section 24 in the conveying direction 16. The discharge roller section 55 includes a discharge roller 62 and a gear 63. The discharge roller 62 and the gear 63 are opposed to each other in the up-down direction. The discharge roller 62 is driven by the conveying motor and rotates. The gear 63 rotates along with the rotation of the discharge roller 62. When the discharge roller 62 rotates forwardly due to the forward rotation of the conveying motor, the paper 12 is sandwiched by the discharge roller 62 and the gear 63 and conveyed in the conveying direction 16.

[0107] [Recording Department 24]

[0108] like Figure 2 As shown, the recording unit 24 is located between the conveying roller unit 54 and the discharge roller unit 55 in the conveying direction 16. The recording unit 24 is vertically opposed to the platen 42 across the conveying path 65. The recording unit 24 is located above the conveying path 65 in the vertical direction. The recording unit 24 includes a carriage 23 and a recording head 39.

[0109] like Figure 3 As shown, the carriage 23 is supported by guide rails 43 and 44. The guide rails 43 and 44 are supported by the frame of the printing unit 11. The guide rails 43 and 44 are separated in the front-rear direction and extend in the left-right direction respectively. The carriage 23 is connected to a well-known belt mechanism provided on the guide rail 44. The belt mechanism is driven by a carriage motor (not shown) to rotate. When the belt mechanism rotates, the carriage 23 moves in the left-right direction. The range of movement of the carriage 23 is Figure 3 The carriage 23 moves to the right and left sides of the conveying path 65 in the left-right direction.

[0110] The ink cartridge 100 is connected to the recording head 39 via an ink tube 32. A control substrate on which a control unit (not shown) is mounted is electrically connected to the recording head 39 via a flexible flat cable 33. The ink tube 32 and the flexible flat cable 33 extend from the carriage 23, respectively. The ink tube 32 supplies the ink stored in the ink cartridge 100 to the recording head 39. The flexible flat cable 33 transmits a control signal output from the control unit to the recording head 39.

[0111] like Figure 2As shown, the carriage 23 carries a recording head 39. A plurality of nozzles 40 are located on the lower surface of the recording head 39. The recording head 39 ejects ink as tiny ink droplets from the nozzles 40. While the carriage 23 is moving, the recording head 39 ejects ink droplets toward the paper 12 supported by the platen 42. Thus, an image is recorded on the paper 12.

[0112] [Plate 42]

[0113] like Figure 2 and Figure 3 As shown, the platen 42 is located between the conveying roller portion 54 and the discharge roller portion 55 in the conveying direction 16. The platen 42 is opposed to the recording portion 24 in the up-down direction. The platen 42 supports the paper 12 conveyed by the conveying roller portion 54 from below.

[0114] [Ink cartridge set 51]

[0115] like Figure 4 As shown in FIG. 1 , the ink cartridge set 51 includes an ink cartridge 100, a cartridge cover 110, and a cartridge cover 127. The ink cartridge 100 is an example of a cartridge. Figure 4 In the embodiment, the box cover 127 is omitted. Figure 1 As shown, the ink cartridge set 51 is located inside the multifunction machine 10. The ink cartridge set 51 is fixed to the multifunction machine 10 so that the user cannot easily remove it from the multifunction machine 10. The opening is located in the front and right end of the housing 8 of the multifunction machine 10 in the left-right direction. The ink cartridge set 51 is located behind the opening of the housing 8.

[0116] The cover 70 is provided on the housing 8 so as to be located in front of the opening of the housing 8. The cover 70 is rotatable about a rotation axis extending in the left-right direction at the lower end side in the vertical direction. Figure 1 The cover 70 can be rotated from the covering position shown to the exposure position where the opening of the housing 8 is exposed to the outside of the multifunction device 10. Figure 1 The cover position shown is rotated to the exposure position where the ink cartridge set 51 is exposed to the outside of the multifunction machine 10. The cover 70 has an opening. Even when the cover 70 is in the cover position, a part of the ink cartridge set 51 is exposed to the outside of the multifunction machine 10 through the opening of the cover 70. In addition, the part of the ink cartridge set 51 is exposed to the outside of the multifunction machine 10 through the opening of the cover 70, which means that the user can visually confirm at least a part of the ink cartridge set 51 from the outside of the multifunction machine 10 through the opening of the cover 70, and does not mean that a part of the ink cartridge set 51 is in a state of flying out of the multifunction machine 10 through the opening of the cover 70.

[0117] like Fig.13 , Fig.19As shown, the ink cartridge 100 has four ink chambers 111A, 111B, 111C, and 111D inside. The four ink chambers 111A, 111B, 111C, and 111D are arranged in the left-right direction. The three ink chambers 111A, 111B, and 111C store any one of yellow, cyan, and magenta inks of different colors. The ink chamber 111D stores black ink. Ink is an example of liquid.

[0118] like Figure 4 , Figure 5 and Fig.19 As shown, the outer shape of the ink cartridge 100 is roughly a rectangular parallelepiped. The ink cartridge 100 has: a front wall 101, a right wall 102, a left wall 103, an upper wall 104, a lower wall 105, a rear wall 106 and three partition walls 107A, 107B, 107C. The ink cartridge 100 is integrally formed by, for example, injection molding a resin material. Among the outer walls of the ink cartridge 100, for example, the lower wall 105 can be another molded product. The front wall 101, the right wall 102, the left wall 103, the upper wall 104, the lower wall 105 and the rear wall 106 have a light transmittance to the extent that the liquid level of the ink inside the ink cartridge 100 can be visually confirmed from the outside. The front surface 101A of the front wall 101 is an example of a visual confirmation surface.

[0119] The three partition walls 107A, 107B, and 107C are arranged at intervals in the left-right direction. Each partition wall 107A, 107B, and 107C is a flat plate extending in the front-back direction and the up-down direction. The front end of each partition wall 107A, 107B, and 107C is connected to the rear surface of the front wall 101. The rear end of each partition wall 107A, 107B, and 107C is connected to the front surface of the rear wall 106. The upper end of each partition wall 107A, 107B, and 107C is connected to the lower surface of the upper wall 104. The lower end of each partition wall 107A, 107B, and 107C is connected to the upper surface of the lower wall 105.

[0120] The partition wall 107A, the front wall 101, the left wall 103, the upper wall 104, the lower wall 105, and the rear wall 106 define an ink chamber 111A. The partition wall 107A, the partition wall 107B, the front wall 101, the upper wall 104, the lower wall 105, and the rear wall 106 define an ink chamber 111B. The partition wall 107B, the partition wall 107C, the front wall 101, the upper wall 104, the lower wall 105, and the rear wall 106 define an ink chamber 111C. The partition wall 107C, the front wall 101, the right wall 102, the upper wall 104, the lower wall 105, and the rear wall 106 define an ink chamber 111D.

[0121] The length L1 in the left-right direction of the ink chamber 111D is longer than the length L2 in the left-right direction of the ink chamber 111C. The ink chamber 111D has a larger capacity than the ink chamber 111C. The length L1 is the distance in the left-right direction between the right surface 107CR of the partition wall 107C and the left surface 102L of the right wall 102. The length L2 is the distance in the left-right direction between the right surface 107BR of the partition wall 107B and the left surface 107CL of the partition wall 107C. The length in the left-right direction of each ink chamber 111A, 111B is equal to the length L2. The ink chamber 111D is an example of the second storage chamber. The ink chamber 111C is an example of the first storage chamber. The right surface 107CR is an example of the first surface.

[0122] The front surface 101A of the front wall 101 has three concave surfaces 151 that are recessed backward. The three concave surfaces 151 are arranged at intervals in the left-right direction. Each concave surface 151 is arranged to span from the upper end to the lower end of the front wall 101. The position of each concave surface 151 in the left-right direction is consistent with the position of any one of the partition walls 107A, the partition walls 107B and the partition walls 107C in the left-right direction. Each concave surface 151 has a left inclined surface 151A, a middle surface 151B and a right inclined surface 151C. The left inclined surface 151A is inclined relative to the left-right direction in a manner extending backward as it extends to the right side. The middle surface 151B is connected to the rear end of the left inclined surface 151A. The middle surface 151B is a forward surface that extends in the left-right direction and the up-down direction. The right inclined surface 151C is connected to the right end of the middle surface 151B. The right inclined surface 151C is inclined relative to the left-right direction in a manner extending forward as it extends to the right side.

[0123] Four upper marks 152A, 152B, 152C, 152D and four lower marks 153A, 153B, 153C, 153D are located on the front surface 101A of the front wall 101. The four upper marks 152A, 152B, 152C, 152D are arranged at intervals in the left-right direction. The four upper marks 152A, 152B, 152C, 152D are located at the upper part of the front surface 101A. Each upper mark 152A, 152B, 152C, 152D has an upper line 231 extending in the left-right direction and an upper arrow 232 located below the upper line 231. The vertex of the upper arrow 232 is located at the center of the upper line 231 in the left-right direction. Each lower mark 153A, 153B, 153C, 153D has a lower line 241 extending in the left-right direction and a lower arrow 242 located above the lower line 241. The vertex of the lower arrow 242 is located at the left-right center of the lower line 241. The four lower marks 153A, 153B, 153C, and 153D are provided at intervals in the left-right direction. The four lower marks 153A, 153B, 153C, and 153D are located at the lower part of the front surface 101A.

[0124] The left-right positions of the upper mark 152A and the lower mark 153A are consistent with the ink chamber 111A. The left-right centers of the upper mark 152A and the lower mark 153A are consistent with the left-right center D1 of the ink chamber 111A. The upper mark 152A indicates that when the liquid level is at the position of the upper line 231, the ink chamber 111A is full of ink. The lower mark 153A indicates that when the liquid level is at the position of the lower line 241, the ink chamber 111A needs to be replenished with ink.

[0125] The left-right positions of the upper mark 152B and the lower mark 153B are consistent with the ink chamber 111B. The left-right centers of the upper mark 152B and the lower mark 153B are consistent with the left-right center D2 of the ink chamber 111B. The upper mark 152B indicates that when the liquid level is at the position of the upper line 231, the ink chamber 111B is full of ink. The lower mark 153B indicates that when the liquid level is at the position of the lower line 241, the ink chamber 111B needs to be replenished with ink.

[0126] The positions of the upper mark 152C and the lower mark 153C in the left-right direction are consistent with the ink chamber 111C. The center of the upper mark 152C and the lower mark 153C in the left-right direction is consistent with the center D3 of the ink chamber 111C in the left-right direction. The upper mark 152C indicates that when the liquid level is at the position of the upper line 231, the ink chamber 111C is full of ink. The lower mark 153C indicates that when the liquid level is at the position of the lower line 241, the ink chamber 111C needs to be replenished with ink. The upper mark 152C is an example of a mark. The lower mark 153C is an example of a mark.

[0127] The positions of the upper mark 152D and the lower mark 153D in the left-right direction are consistent with the ink chamber 111D. The center of the upper mark 152D and the lower mark 153D in the left-right direction is located to the left of the center D4 of the ink chamber 111D in the left-right direction. The upper mark 152D indicates that when the liquid level is at the position of the upper line 231, the ink chamber 111D is full of ink. The lower mark 153D indicates that when the liquid level is at the position of the lower line 241, the ink chamber 111D needs to be replenished with ink.

[0128] The upper surface of the upper wall 104 is composed of a plurality of surfaces extending in the front-back direction and the left-right direction. The upper wall 104 has four air communication ports 112A, 112B, 112C, and 112D. The four air communication ports 112A, 112B, 112C, and 112D are arranged at equal intervals in the left-right direction. Each air communication port 112A, 112B, 112C, and 112D penetrates the upper wall 104 in the up-down direction. Each air communication port 112A, 112B, 112C, and 112D is a long rectangle in the left-right direction. The air communication port 112A connects the ink chamber 111A to the outside. The air communication port 112B connects the ink chamber 111B to the outside. The air communication port 112C connects the ink chamber 111C to the outside. The air communication port 112D connects the ink chamber 111D to the outside.

[0129] The upper surface of the upper wall 104 has an inclined surface 104A. The inclined surface 104A is located at the front end of the upper surface of the upper wall 104. The inclined surface 104A is inclined relative to the front-rear direction in a manner that extends downward as it extends forward. The inclined surface 104A is set to span from the left end to the right end of the ink cartridge 100. Figure 5 and Fig.13 As shown in FIG. 1 , the weir wall 109 is located at the front end of the inclined surface 104A. The weir wall 109 protrudes obliquely upward and forward from the inclined surface 104A. The weir wall 109 extends from the left end to the right end of the ink cartridge 100 in the left-right direction.

[0130] Four outflow pipes 124A, 124B, 124C, and 124D are located on the upper wall 104. The four outflow pipes 124A, 124B, 124C, and 124D are arranged at equal intervals in the left-right direction. The outflow pipe 124A is a circular pipe extending downward from the upper wall 104 in the ink chamber 111A. The outflow pipe 124B is a circular pipe extending downward from the upper wall 104 in the ink chamber 111B. The outflow pipe 124C is a circular pipe extending downward from the upper wall 104 in the ink chamber 111C. The outflow pipe 124D is a circular pipe extending downward from the upper wall 104 in the ink chamber 111D. The lower end of each outflow pipe 124A, 124B, 124C, and 124D is located near the lower wall 105. The openings of the upper ends of the outflow pipes 124A, 124B, 124C, and 124D are located on the upper wall 104 .

[0131] The upper ends of the outflow tubes 124A, 124B, 124C, and 124D are connected to the ink tubes 32. The ink in the ink chambers 111A, 111B, 111C, and 111D flows toward the recording head 39 through the outflow tubes 124A, 124B, 124C, and 124D and the ink tubes 32. When the ink in the ink chambers 111A, 111B, 111C, and 111D is consumed by ejecting ink from the recording head 39, air flows into the ink chambers 111A, 111B, 111C, and 111D through the atmosphere communication ports 112A, 112B, 112C, and 112D.

[0132] like Figure 5 , Fig.19 As shown, four communication parts 113A, 113B, 113C, and 113D are located at the front end of the upper wall 104. The four communication parts 113A, 113B, 113C, and 113D are arranged at equal intervals along the left-right direction. Each communication part 113A, 113B, 113C, and 113D is a part that connects the liquid bottle 80 described later. The communication part 113A has an annular wall 122A, a box tube body 115A, and a communication port 119A. The communication part 113B has an annular wall 122B, a box tube body 115B, and a communication port 119B. The communication part 113C has an annular wall 122C, a box tube body 115C, and a communication port 119C. The communication part 113D has an annular wall 122D, a box tube body 115D, and a communication port 119D. The communication part 113C is an example of a first communication part. The communication portion 113D is an example of a second communication portion.

[0133] The four annular walls 122A, 122B, 122C, and 122D are arranged at equal intervals in the left-right direction. Each of the annular walls 122A, 122B, 122C, and 122D is a cylindrical shape extending obliquely forward and upward from the front end of the upper wall 104 along an extension direction intersecting the gravity direction and the horizontal direction. Fig.19 In order to simplify the illustration, each annular wall 122A, 122B, 122C, 122D extends upward. The outer diameter L3 and the inner diameter of each annular wall 122A, 122B, 122C, 122D are equal to each other. The outer diameter L3 of each annular wall 122A, 122B, 122C, 122D is longer than the length L2 of the ink chamber 111C in the left-right direction. In addition, the inner diameter of each annular wall 122A, 122B, 122C, 122D is longer than the length L2 of the ink chamber 111C in the left-right direction.

[0134] The annular wall 122A is located above the ink chamber 111A. The position of the left end of the annular wall 122A coincides with the position of the left wall 103 in the left-right direction. The right end of the annular wall 122A is slightly located to the right of the partition wall 107A in the left-right direction. Thus, the position of a portion of the annular wall 122A coincides with the position of the ink chamber 111B in the left-right direction. That is, the annular wall 122A is located at a position that spans from the ink chamber 111A to the ink chamber 111B in the left-right direction. The center C1 of the annular wall 122A in the left-right direction is slightly offset to the right relative to the center D1 of the ink chamber 111A in the left-right direction.

[0135] The annular wall 122B is located above the ink chamber 111B. The position of the left end of the annular wall 122B coincides with the position of the ink chamber 111B in the left-right direction. The right end of the annular wall 122B is located on the right side compared to the partition wall 107B. Thus, the position of a portion of the annular wall 122B coincides with the position of the ink chamber 111C in the left-right direction. That is, the annular wall 122B is located at a position spanning from the ink chamber 111B to the ink chamber 111C in the left-right direction. The center C2 of the annular wall 122B in the left-right direction is offset to the right relative to the center D2 of the ink chamber 111B in the left-right direction. The offset B2 of the center C2 of the annular wall 122B relative to the center D2 of the ink chamber 111B is larger than the offset B1 of the center C1 of the annular wall 122A relative to the center D1 of the ink chamber 111A. A distance L4 between the center C2 of the annular wall 122B and the right surface 107AR of the partition wall 107A is longer than a distance L5 between the right surface 103R of the left wall 103 and the center C1 of the annular wall 122A.

[0136] The annular wall 122C is located above the ink chamber 111C. The position of the left end of the annular wall 122C coincides with the position of the ink chamber 111C in the left-right direction. The right end of the annular wall 122C is located significantly to the right compared to the partition wall 107C. Thus, the position of a portion of the annular wall 122C coincides with the position of the ink chamber 111D in the left-right direction. That is, the annular wall 122C is located at a position that spans from the ink chamber 111C to the ink chamber 111D in the left-right direction. The offset B3 of the center C3 of the annular wall 122C relative to the center D3 of the ink chamber 111C is larger than the offset B2 of the center C2 of the annular wall 122B relative to the center D2 of the ink chamber 111B. In addition, in the direction from the ink chamber 111B toward the ink chamber 111C in the left-right direction, that is, in the right direction, the offset of the center C2 of the annular wall 122B relative to the center D2 of the ink chamber 111B is different from the offset of the center C3 of the annular wall 122C relative to the center D3 of the ink chamber 111C. The distance L6 between the center C3 of the annular wall 122C and the right surface 107BR of the partition wall 107B in the left-right direction is longer than the distance L4. The annular wall 122C is an example of the first cylinder wall. The left surface 107CL is an example of the second surface.

[0137] The annular wall 122D is located above the ink chamber 111D. The position of the left end of the annular wall 122D coincides with the position of the ink chamber 111D in the left-right direction. The position of the right end of the annular wall 122D coincides with the position of the right wall 102 in the left-right direction. The center C4 of the annular wall 122D in the left-right direction is greatly offset to the right relative to the center D4 of the ink chamber 111D in the left-right direction. The offset B4 of the center C4 of the annular wall 122D relative to the center D4 of the ink chamber 111D is smaller than the offset B3 and larger than the offset B2. In addition, in the direction from the ink chamber 111C toward the ink chamber 111D along the left-right direction, that is, in the right direction, the offset of the center C3 of the annular wall 122C relative to the center D3 of the ink chamber 111C is different from the offset of the center C4 of the annular wall 122D relative to the center D4 of the ink chamber 111D. A distance L7 between a center C4 of the annular wall 122D and the right surface 107CR of the partition wall 107C in the left-right direction is longer than a distance L6. The annular wall 122D is an example of a second tube wall.

[0138] The box tube body 115A is located on the inner side of the annular wall 122A. The box tube body 115A is surrounded by the annular wall 122A. The box tube body 115A is a circular tube that extends obliquely upward from the upper surface of the upper wall 104 in parallel with the annular wall 122A forward along an extension direction that intersects the gravity direction and the horizontal direction. The box tube body 115A protrudes upward compared to the top of the annular wall 122A. The upper end of the box tube body 115A opens to the outside of the ink chamber 111A. The lower end of the box tube body 115A opens in the ink chamber 111A. The internal space of the box tube body 115A connects the outside and the inside of the ink chamber 111A. The top end of the box tube body 115A is a forked shape that is separated in the left-right direction. The center of the box tube body 115A in the left-right direction coincides with the center C1 of the annular wall 122A in the left-right direction. As shown in FIG. Fig. 20 As shown in (A), the center T1 of the circle of the box tube body 115A is located behind the center K1 of the circle of the annular wall 122A. In other words, when viewed from the extending direction of the box tube body 115A, the axis passing through the center of the box tube body 115A is located behind the axis passing through the center of the annular wall 122A.

[0139] The communication port 119A is located on the inner side of the annular wall 122A. The communication port 119A is located on the inclined surface 104A. The communication port 119A is surrounded by the annular wall 122A. The communication port 119A passes through the upper wall 104 in the up-down direction. The front side of the communication port 119A is circular, and the rear side is a quadrilateral. In other words, the communication port 119A is a shape in which one side of the front side of the quadrilateral is raised in an arc shape. The communication port 119A connects the outside and the inside of the ink chamber 111A. The center of the communication port 119A in the left-right direction coincides with the center C1 of the annular wall 122A in the left-right direction. Fig.13 As shown in FIG. 1 , the communication port 119A is located in front of the box tube body 115A. The communication port 119A is located below the box tube body 115A. In other words, when viewed from the extension direction of the box tube body 115A, a straight line extending in the extension direction through the center of the communication port 119A is located in front of the axis line passing through the center of the box tube body 115A when viewed from the extension direction of the box tube body 115A. Fig. 20 As shown in (A), the communication port 119A is located in front of the center K1 of the circle of the annular wall 122A. In other words, when viewed from the extension direction of the annular wall 122A, the straight line extending in the extension direction through the center of the communication port 119A is located in front of the axis passing through the center of the annular wall 122A when viewed from the extension direction of the annular wall 122A.

[0140] The box tube body 115B is located on the inner side of the annular wall 122B. The box tube body 115B is surrounded by the annular wall 122B. The box tube body 115B is a circular tube that extends obliquely upward from the upper surface of the upper wall 104 in parallel with the annular wall 122B and forward along an extension direction that intersects the gravity direction and the horizontal direction. The box tube body 115B protrudes upward compared to the top of the annular wall 122B. The upper end of the box tube body 115B opens to the outside of the ink chamber 111B. The lower end of the box tube body 115B opens inside the ink chamber 111B. The internal space of the box tube body 115B connects the outside and the inside of the ink chamber 111B. The top end of the box tube body 115B is a forked shape that is separated in the left-right direction. The center of the box tube body 115B in the left-right direction coincides with the center C2 of the annular wall 122B in the left-right direction. As Fig. 20 As shown in (A), the center T2 of the circle of the box tube body 115B is located behind the center K2 of the circle of the annular wall 122B. In other words, when viewed from the extending direction of the box tube body 115B, the axis passing through the center of the box tube body 115B is located behind the axis passing through the center of the annular wall 122B.

[0141] like Figure 5 As shown, the communication port 119B is located on the inner side of the annular wall 122B. The communication port 119B is located on the inclined surface 104A. The communication port 119B is surrounded by the annular wall 122B. The communication port 119B passes through the upper wall 104 in the up-down direction. The front side of the communication port 119B is circular, and the rear side is a quadrilateral. In other words, the communication port 119B is a shape in which one side of the front side of the quadrilateral is raised in an arc shape. The communication port 119B connects the outside and the inside of the ink chamber 111B. The center of the communication port 119B in the left-right direction coincides with the center C2 of the annular wall 122B in the left-right direction. As shown in FIG. Fig.13 As shown in FIG. 1 , the communication port 119B is located in front of the box tube body 115B. The communication port 119B is located below the box tube body 115B. In other words, when viewed from the extension direction of the box tube body 115B, a straight line extending in the extension direction through the center of the communication port 119B is located in front of the axis line passing through the center of the box tube body 115B when viewed from the extension direction of the box tube body 115B. Fig. 20 As shown in (A), the communication port 119B is located in front of the center K2 of the circle of the annular wall 122B. In other words, when viewed from the extension direction of the annular wall 122B, the straight line extending in the extension direction through the center of the communication port 119B is located in front of the axis passing through the center of the annular wall 122B when viewed from the extension direction of the annular wall 122B.

[0142] The box tube body 115C is located on the inner side of the annular wall 122C. The box tube body 115C is surrounded by the annular wall 122C. The box tube body 115C is a circular tube that extends obliquely upward from the upper surface of the upper wall 104 in parallel with the annular wall 122C and forward along an extension direction that intersects the gravity direction and the horizontal direction. The box tube body 115C protrudes upward compared to the top of the annular wall 122C. The upper end of the box tube body 115C opens to the outside of the ink chamber 111C. The lower end of the box tube body 115C opens inside the ink chamber 111C. The internal space of the box tube body 115C connects the outside and the inside of the ink chamber 111C. The top end of the box tube body 115C is a forked shape that is separated in the left-right direction. The center of the box tube body 115C in the left-right direction coincides with the center C3 of the annular wall 122C in the left-right direction. As shown in FIG. Fig. 20 As shown in (A), the center T3 of the circle of the box tube body 115C is located behind the center K3 of the circle of the annular wall 122C. In other words, when viewed from the extending direction of the box tube body 115C, the axis passing through the center of the box tube body 115C is located behind the axis passing through the center of the annular wall 122C. The box tube body 115C is an example of a first nozzle.

[0143] like Figure 5 As shown, the communication port 119C is located on the inner side of the annular wall 122C. The communication port 119C is located on the inclined surface 104A. The communication port 119C is surrounded by the annular wall 122C. The communication port 119C passes through the upper wall 104 in the up-down direction. The front side of the communication port 119C is circular, and the rear side is a quadrilateral. In other words, the communication port 119C is a shape in which one side of the front side of the quadrilateral is raised in an arc shape. The communication port 119C connects the outside and the inside of the ink chamber 111C. The center of the communication port 119C in the left-right direction coincides with the center C3 of the annular wall 122C in the left-right direction. As shown in FIG. Fig.13 As shown in FIG. 1 , the communication port 119C is located in front of the box tube body 115C. The communication port 119C is located below the box tube body 115C. In other words, when viewed from the extension direction of the box tube body 115C, a straight line extending in the extension direction through the center of the communication port 119C is located in front of the axis line passing through the center of the box tube body 115C when viewed from the extension direction of the box tube body 115C. Fig. 20 As shown in (A), the communication port 119C is located in front of the center K3 of the circle of the annular wall 122C. In other words, when viewed from the extension direction of the annular wall 122C, the straight line extending in the extension direction through the center of the communication port 119C is located in front of the axis passing through the center of the annular wall 122C when viewed from the extension direction of the annular wall 122C. The communication port 119C is an example of a first injection port.

[0144] The box tube body 115D is located on the inner side of the annular wall 122D. The box tube body 115D is surrounded by the annular wall 122D. The box tube body 115D is a circular tube that extends obliquely upward from the upper surface of the upper wall 104 in parallel with the annular wall 122D and forward along an extension direction that intersects the gravity direction and the horizontal direction. The box tube body 115D protrudes upward compared to the top of the annular wall 122D. The upper end of the box tube body 115D opens to the outside of the ink chamber 111D. The lower end of the box tube body 115D opens in the ink chamber 111D. The internal space of the box tube body 115D connects the outside and the inside of the ink chamber 111D. The top end of the box tube body 115D is a forked shape that is separated in the left-right direction. The center of the box tube body 115D in the left-right direction coincides with the center C4 of the annular wall 122D in the left-right direction. As shown in FIG. Fig. 20 As shown in (A), the center T4 of the circle of the box tube body 115D is located behind the center K4 of the circle of the annular wall 122D. In other words, when viewed from the extending direction of the box tube body 115D, the axis passing through the center of the box tube body 115D is located behind the axis passing through the center of the annular wall 122D. The box tube body 115D is an example of a second nozzle.

[0145] like Figure 5 As shown, the communication port 119D is located on the inner side of the annular wall 122D. The communication port 119D is located on the inclined surface 104A. The communication port 119D is surrounded by the annular wall 122D. The communication port 119D passes through the upper wall 104 in the up-down direction. The front side of the communication port 119D is circular, and the rear side is a quadrilateral. In other words, the communication port 119D is a shape in which one side of the front side of the quadrilateral is raised in an arc shape. The communication port 119D connects the outside and the inside of the ink chamber 111D. The center of the communication port 119D in the left-right direction coincides with the center C4 of the annular wall 122D in the left-right direction. As shown in FIG. Fig.13 As shown in FIG. 1 , the communication port 119D is located in front of the box tube body 115D. The communication port 119D is located below the box tube body 115D. In other words, when viewed from the extension direction of the box tube body 115D, a straight line extending in the extension direction through the center of the communication port 119D is located in front of the axis line passing through the center of the box tube body 115D when viewed from the extension direction of the box tube body 115D. Fig. 20 As shown in (A), the communication port 119D is located in front of the center K4 of the circle of the annular wall 122D. In other words, when viewed from the extension direction of the annular wall 122D, the straight line extending in the extension direction through the center of the communication port 119D is located in front of the axis passing through the center of the annular wall 122D when viewed from the extension direction of the annular wall 122D. The communication port 119D is an example of a second injection port.

[0146] like Figure 4As shown, the cartridge cover 110 keeps the ink cartridge 100 under the state of covering the front side of the ink cartridge 100 from the front. The cartridge cover 110 has a front wall 201, an upper wall 202, a right wall 203, a left wall 204, a lower wall 205 and an inclined wall 206. The front wall 201 covers the front of the ink cartridge 100. The front wall 201 has an opening 207. Through the opening 207, a part of the front wall 101 of the ink cartridge 100 is exposed to the front of the cartridge cover 110. In addition, the part of the front wall 101 of the ink cartridge 100 is exposed to the front of the cartridge cover 110 through the opening 207, which means that the user can at least visually confirm a part of the front wall 101 of the ink cartridge 100 from the front of the cartridge cover 110 through the opening 207, and is not meant that a part of the front wall 101 of the ink cartridge 100 protrudes to the front of the cartridge cover 110 through the opening 207.

[0147] The upper wall 202 covers a portion of the front side of the upper wall 104 of the ink cartridge 100. The right wall 203 covers a portion of the right wall 102 of the ink cartridge 100. The left wall 204 covers a portion of the left wall 103 of the ink cartridge 100. The lower wall 205 covers the lower wall 105 of the ink cartridge 100.

[0148] The inclined wall 206 is connected to the upper end of the front wall 201 and to the front end of the upper wall 202. The inclined wall 206 is located above the four annular walls 122A, 122B, 122C, and 122D of the ink cartridge 100. The inclined wall 206 is located in front of the four annular walls 122A, 122B, 122C, and 122D of the ink cartridge 100. That is, the inclined wall 206 is located in the direction in which the front end of each annular wall 122A, 122B, 122C, and 122D extends from the front end of the upper wall 104 along the extension direction relative to the four annular walls 122A, 122B, 122C, and 122D. The outer surface of the inclined wall 206 intersects with the gravity direction and the horizontal direction. The outer surface of the inclined wall 206 is inclined relative to the front-rear direction in a manner that extends downward as it extends forward. The inclined wall 206 covers a portion of the inclined surface 104A of the upper wall 104 of the ink cartridge 100.

[0149] The inclined wall 206 has four through holes 72 arranged at intervals in the left-right direction. Each through hole 72 penetrates the inclined wall 206 in the up-down direction. The inner circumference of each through hole 72 is a cylindrical shape extending in a direction orthogonal to the outer surface of the inclined wall 206, that is, obliquely upwardly to the front. That is, each through hole 72 is cylindrical. In addition, the cylindrical shape mentioned here refers to the shape of a closed space formed by the inner circumference, and the shape of the opening formed by the inner circumference is not necessarily circular. In addition, regardless of the length of the inner circumference extending in the direction of the opening formed by the inner circumference, in other words, regardless of the thickness of the through hole 72, it is cylindrical. Observing obliquely upward from the front, the inner circumference of each through hole 72 surrounds any one of the four annular walls 122A, 122B, 122C, and 122D. The four through holes 72 are located at a position corresponding to any one of the four ink chambers 111A, 111B, 111C, and 111D. That is, when viewed obliquely upward from the front, the four through holes 72 overlap with the four ink chambers 111A, 111B, 111C, and 111D, respectively. The annular walls 122A, 122B, 122C, and 122D and the communication ports 119A, 119B, 119C, and 119D are exposed to the outside of the box cover 110 through the through holes 72. The box tubes 115A, 115B, 115C, and 115D protrude to the outside of the box cover 110 through the through holes 72.

[0150] The front side of the through hole 72 is circular, and the rear side is a quadrilateral. In other words, the through hole 72 is a shape in which one side of the front side of the quadrilateral is raised in an arc shape. Specifically, the inner circumference of the through hole 72 has an inner curved surface 72A that is raised obliquely downward to the front, a left inner plane 72B connected to the left end of the inner curved surface 72A, a right inner plane 72C connected to the right end of the inner curved surface 72A, and a rear inner plane 72D connected to the rear end of the left inner plane 72B and the rear end of the right inner plane 72C. The inner curved surface 72A is located at the lower part of the inner circumference of the through hole 72. The rear inner plane 72D has a shape in which the central part of the left-right direction of the rear inner plane 72D is raised obliquely upward to the rear.

[0151] The slit 73 extends rearward from the rear inner plane 72D of the through hole 72 and is spatially continuous with the through hole 72. The slit 73 is spatially continuous with the through hole 72 and is located at the center of the through hole 72 in the left-right direction.

[0152] like Figure 4 and Fig.12 As shown, the key slot 74 is selectively located on the left and right of the slit 73 in the rear inner plane 72D of the through hole 72. The key slot 74 and the through hole 72 are spatially continuous and extend backward from the rear inner plane 72D of the through hole 72. The presence, position, and shape of the key slot 74 are different in each through hole 72. Specifically, in the case of the key slot 74 located on the rear inner plane 72D of the through hole 72, the key slot 74 is located on the rear inner plane 72D of the through hole 72. Figure 4 and Fig.12In the leftmost through hole 72, one key groove 74 is located on the right side of the slit 73, and one key groove 74 is located on the left side of the slit 73. The distance between the key groove 74 on the right and the slit 73 in the left-right direction is the same as the distance between the key groove 74 on the left and the slit 73 in the left-right direction.

[0153] lie in Figure 4 and Fig.12 In the through hole 72 at the second position from the left, one key groove 74 is located on the right side of the slit 73, and one key groove 74 is located on the left side of the slit 73. The length of the key groove 74 and the slit 73 on the right side in the left-right direction is longer than the length of the key groove 74 and the slit 73 on the left side in the left-right direction.

[0154] exist Figure 4 and Fig.12 In the through hole 72 at the third position from the left, one key groove 74 is located on the right side of the slit 73, and the key groove 74 is not located on the left side of the slit 73. The length of the key groove 74 on the right side in the left-right direction is longer than the length of the key groove 74 in the through hole 72 at the second position from the left.

[0155] Located in Figure 4 and Fig.12 In the rightmost through hole 72, one key groove 74 is located on the right side of the slit 73, and one key groove 74 is located on the left side of the slit 73. The right key groove 74 and slit 73 are shorter in the left-right direction than the left key groove 74 and slit 73.

[0156] like Figures 6 to 12 As shown in the figure, the box cover 127 is a cylindrical component with one end closed. The box cover 127 can be removed and installed on each annular wall 122A, 122B, 122C, 122D. When the box cover 127 is removed from each annular wall 122A, 122B, 122C, 122D, it is not connected to the ink cartridge 100 and the box cover 110 and is completely separated. That is, the ink cartridge set 51 does not have a holding member composed of an arm or the like that holds the box cover 127 removed from the annular wall 122 in a state connected to the ink cartridge 100 or the box cover 110.

[0157] The box cover 127 has a main body 128, a rubber member 129 and a handle portion 133. The main body 128 and the handle portion 133 are integrally molded products of synthetic resin. The rubber member 129 is made of rubber. The main body 128 has a cylindrical portion 130, a protruding piece 131 and a flat plate portion 132.

[0158] The cylinder 130 is a cylindrical shape that opens downward when the box cover 127 is attached to any of the four annular walls 122A, 122B, 122C, and 122D. The inner diameter of the inner space of the cylinder 130 is larger than the outer shape of each box tube 115A, 115B, 115C, and 115D.

[0159] The protrusion 131 protrudes from the side of the cylinder 130 to the left side in the left-right direction in the installation posture. In addition, the protrusion 131 protrudes from the side of the cylinder 130 to the right side in the left-right direction in the installation posture. That is, a pair of protrusions 131 protrude from the side of the cylinder 130 in opposite directions. The protrusion 131 is in the shape of a flat plate, and is a straight line shape with the protruding end along the front-back direction in the installation posture.

[0160] The flat plate portion 132 protrudes from the side surface of the cylinder portion 130 to the rear in the front-rear direction in the installation posture. The flat plate portion 132 extends in the vertical direction. By fitting the flat plate portion 132 into the slit 73 of the box cover 110, the outer shape of the box cover 127 becomes a shape that determines the installation posture.

[0161] On the side of the cylinder 130 , the rubber member 129 is located below the protrusion 131 . The rubber member 129 is cylindrical in shape and covers the side of the cylinder 130 located below the protrusion 131 . The upper end of the rubber member 129 abuts against the protrusion 131 .

[0162] The rubber member 129 has a contact portion 136 extending inward from the opening of the tube 130. The contact portion 136 contacts the end surface of the opening of the tube 130. The contact portion 136 contacts the inner peripheral surface 137 of the tube 130 inside the opening of the tube 130.

[0163] like Fig.10 As shown, the flange portion 140 extends from the abutment portion 136 to the inner side of the barrel portion 130. The abutment portion 136 and the flange portion 140 define an opening 138 facing downward. The flange portion 140 extends from the left end of the abutment portion 136 in the left-right direction to the right. The flange portion 140 extends from the right end of the abutment portion 136 in the left-right direction to the left. The flange portion 140 is not located at the upper end and the lower end of the abutment portion 136. The length of the opening 138 in the front-to-back direction is longer than the length in the left-right direction. In other words, the opening 138 is an elliptical shape in which a part of the left-right direction of the circle is a straight line. The length of the opening 138 in the left-right direction is longer than the outer diameter of each cartridge tube body 115A, 115B, 115C, 115D of the ink cartridge 100.

[0164] like Figure 7As shown, the rubber member 129 has a convex portion 139 protruding annularly from the outer peripheral surface of the rubber member 129. The outer diameter of the convex portion 139 is larger than the inner diameter of each annular wall 122A, 122B, 122C, 122D of the ink cartridge 100. The rubber member 129 mounted on the barrel 130 can be inserted into the inner space of each annular wall 122A, 122B, 122C, 122D by being pressed. The barrel 130 and the rubber member 129 cover the upper sides of each communication port 119A, 119B, 119C, 119D and each cartridge tube body 115A, 115B, 115C, 115D in a state of being inserted into the inner space of the annular wall 122A, 122B, 122C, 122D. The convex portion 139 is in fluid-tight contact with the inner peripheral surfaces of the annular walls 122A, 122B, 122C, and 122D.

[0165] The handle portion 133 is located above the cylinder portion 130 and the flat plate portion 132 in the installed position. The handle portion 133 is in the shape of a semicircular plate that protrudes upward from the outer surface of the cylinder portion 130 and the flat plate portion 132 in the installed position. The diameter of the semicircular plate shape is the same as the length of the cylinder portion 130 and the flat plate portion 132 in the front-rear direction. Therefore, the handle portion 133 extends over the cylinder portion 130 and the flat plate portion 132 and has a long and narrow shape in the left-right direction.

[0166] The edge of the handle portion 133, which is a semicircular plate-shaped circumference, is a thick wall portion 134 extending in the left-right direction. A ridge 135 extending in the up-down direction from the lower end of the handle portion 133 toward the thick wall portion 134 is provided. A plurality of ridges 135 are arranged at intervals in the front-back direction. The length of the ridge 135 in the left-right direction gradually increases from the lower end of the handle portion 133 toward the thick wall portion 134. Near the thick wall portion 134, the length of the ridge 135 in the left-right direction is the same as the length of the thick wall portion 134 in the left-right direction. In the handle portion 133, the length of the portion other than the thick wall portion 134 and the ridge 135 in the left-right direction is smaller than the length of the thick wall portion 134.

[0167] The weight of the handle 133 is heavier than the total weight of the body 128 and the rubber member 129. Therefore, when one of the pair of protrusions 131 is brought into contact with the bottom surface, the handle 133 contacts the bottom surface, and the box cover 127 is floated from the bottom surface closer to the rubber member 129 than the protrusion 131.

[0168] [Liquid bottle 80]

[0169] Fig.14 The liquid bottle 80 shown is connected to the ink cartridge group 51. Fig.14 and Fig.16 As shown, the liquid bottle 80 includes a bottle body 81, a bottle cap 82, and a valve 161. The bottle body 81 is cylindrical and has a mouth 87 with a smaller diameter than the lower part. The bottle cap 82 is attached to the mouth 87 to form a container for storing ink in the internal space.

[0170] The bottle cap 82 has a side wall 93, a bottom wall 92, a protrusion 94, an opening 95, a bottle tube body 96, a key member 99, and an annular rib 91. The side wall 93 is a cylindrical wall extending in the up-down direction. The side wall 93 is threadedly connected to the mouth 87. The bottom wall 92 is an annular wall extending from the upper end of the side wall 93 to the inner side in the radial direction.

[0171] The projection 94 is a cylindrical wall extending upward from the bottom wall 92. The projection 94 can be inserted into the through hole 72 of the box cover 110. The outer peripheral surface of the projection 94 has the shape of the inner peripheral surface of the through hole 72 that is suitable for the box cover 110. In other words, the shape and size of the outer peripheral surface of the projection 94 are almost equal to the shape and size of the inner peripheral surface of the through hole 72. The front side of the outer peripheral surface of the projection 94 is a circular shape, and the rear side is a quadrilateral. In other words, the outer peripheral surface of the projection 94 is a shape that one side of the front side of the quadrilateral is raised in an arc shape forward.

[0172] Specifically, the outer peripheral surface of the protrusion 94 has: an outer curved surface 94A that bulges forward, a left outer plane 94B connected to the left end of the outer curved surface 94A, a right outer plane 94C connected to the right end of the outer curved surface 94A, and a rear outer plane 94D that connects the rear ends of the left outer plane 94B and the right outer plane 94C. The outer curved surface 94A is suitable for the inner curved surface 72A of the through hole 72 when the protrusion 94 is inserted into the through hole 72. The left outer plane 94B is suitable for the right inner plane 72C of the through hole 72 when the protrusion 94 is inserted into the through hole 72. The right outer plane 94C is suitable for the left inner plane 72B of the through hole 72 when the protrusion 94 is inserted into the through hole 72. The rear outer plane 94D is located between the outer curved surface 94A and clamps the opening 95 and the bottle tube body 96 described later in the front-to-back direction. As shown Fig.14 and Fig.16 As shown, the rear outer plane 94D has an upper plane 150, a middle inclined surface 152 and a lower arc surface 153. The upper plane 150 is located at a position spanning from the upper end of the protrusion 94 to the approximate center portion in the up-down direction. The middle inclined surface 152 is continuous with the lower end of the upper plane 150. The middle inclined surface 152 is inclined relative to the up-down direction in a manner extending rearward as it goes downward. The lower arc surface 153 is located at a position spanning from the lower end of the middle inclined surface 152 to the upper surface of the bottom wall 92. The lower arc surface 153 is an arc surface that bulges rearward when viewed from above. The rear outer plane 94D is adapted to the rear inner plane 72D of the through hole 72 when the protrusion 94 is inserted into the through hole 72.

[0173] like Fig.15As shown, the outer peripheral surface of the protrusion 94 is not rotationally symmetrical with respect to the center A1 of the protrusion 94. The so-called rotational symmetry means that when a certain object is rotated 360 degrees with the center of the object as the rotation axis, it overlaps more than 2 times. For example, in the case where the outer peripheral surface of the protrusion 94 is an equilateral triangle, when the protrusion 94 is rotated 360 degrees with the center A1 as the rotation axis, the protrusion 94 overlaps 3 times, so the outer peripheral surface of the protrusion 94 is rotationally symmetrical with respect to the center A1 of the protrusion 94. In the present embodiment, when the protrusion 94 is rotated 360 degrees with the center A1 as the rotation axis, the protrusion 94 overlaps only once, so the outer peripheral surface of the protrusion 94 is not rotationally symmetrical with respect to the center A1. As a result, the direction in which the protrusion 94 can be inserted into the through hole 72 is uniquely determined. The center A1 is a point where the midpoint of the line segment that specifies the length of the protrusion 94 in the left-right direction coincides with the midpoint of the line segment that specifies the length of the protrusion 94 in the front-back direction when the protrusion 94 is observed from above. In the present embodiment, the center A1 is a point where the midpoint of the line segment LS1 connecting the left outer plane 94B and the right outer plane 94C coincides with the midpoint of the line segment LS2 connecting the front end of the outer curved surface 94A and the rear outer plane 94D.

[0174] The protrusion 94 has an upper wall 97 located at the upper end. The upper wall 97 is located slightly below the upper end of the protrusion 94. The upper wall 97 has an upper surface that is orthogonal to the up-down direction. The upper wall 97 is a flat plate extending in the front-back direction and the left-right direction. The recess 98 is defined by the upper surface of the upper wall 97 and the inner peripheral surface of the protrusion 94. The inner peripheral surface of the recess 98 is parallel to the outer peripheral surface of the protrusion 94.

[0175] The key member 99 extends backward from the rear outer plane 94D in the outer peripheral surface of the protrusion 94. The position and shape of the key member 99 are consistent with the position and shape of the key groove 74 for connecting the through hole 72 of the liquid bottle 80. In other words, the position and shape of the key member 99 relative to the rear outer plane 94D are different in each of the four liquid bottles 80 storing any one of black, yellow, cyan, and magenta inks. Fig.14 , a key member 99 of the liquid bottle 80 is shown which is aligned with the through hole 72 located at the leftmost side of the box cover 110.

[0176] The opening 95 and the bottle tube body 96 are located on the upper surface of the upper wall 97 of the protrusion 94. The opening 95 is located behind the center A1 of the protrusion 94. The opening 95 is circular. The opening 95 connects the internal space of the liquid bottle 80 with the outside. The bottle tube body 96 is located in front of the opening 95. The bottle tube body 96 is located in front of the center A1 of the protrusion 94. The bottle tube body 96 is a cylinder, and the internal space connects the internal space of the liquid bottle 80 with the outside. The outer shape of the bottle tube body 96 is a polygon that is consistent with the shape of each communication port 119A, 119B, 119C, and 119D of the ink cartridge 100. That is, the front side of the outer shape of the bottle tube body 96 is a circular shape, and the rear side is a quadrilateral. In other words, the outer shape of the bottle tube body 96 is a shape in which one side of the front side of the quadrilateral is raised in an arc shape.

[0177] The annular rib 91 is located at the outer peripheral portion of the upper surface of the bottom wall 92. The annular rib 91 is arranged at intervals outward from the protrusion 94. The annular rib 91 protrudes upward from the upper surface of the bottom wall 92. The annular rib 91 extends in a circular ring shape along the outer peripheral portion of the upper surface of the bottom wall 92. The annular rib 91 surrounds the outer peripheral surface of the protrusion 94. Thus, a circular ink holding space 121 defined by the inner peripheral surface of the annular rib 91, the outer peripheral surface of the protrusion 94, and the upper surface of the bottom wall 92 is formed.

[0178] like Fig.16 As shown in FIG. 1 , the valve 161 is located in the inner space of the protrusion 94. The valve 161 includes a valve core 161A, a valve seat 161B, and a coil spring 161C. The valve core 161A is in the shape of a flat plate extending in the front-rear direction and the left-right direction. When viewed from the top-bottom direction, the valve core 161A is in the shape of an ellipse along the inner surface of the protrusion 94. The upper surface of the valve core 161A closes the opening 95 and the opening on the inner space side of the liquid bottle 80 in the bottle tube body 96.

[0179] The valve seat 161B is located below the valve core 161A. The valve seat 161B is in the shape of a flat plate extending in the front-to-back direction and the left-to-right direction. The valve seat 161B is fixed to the inner surface of the protrusion 94. The coil spring 161C is located between the valve core 161A and the valve seat 161B. The coil spring 161C can be compressed in the up-down direction. The lower end of the coil spring 161C is supported on the upper surface of the valve seat 161B. The upper end of the coil spring 161C applies force to the valve core 161A upward. As a result, the coil spring 161C maintains a state of closing the opening 95 and the opening of the bottle tube body 96 on the upper surface of the valve core 161A.

[0180] The valve 161 can move in the vertical direction between a closed position and an open position. Fig.16 As shown in FIG. 1 , the closed position is a position where the upper surface of the valve core 161A closes the opening 95 and the opening of the bottle tube body 96. Fig.17 As shown, the open position is a position where the valve element 161A moves downward from the closed position against the urging force of the coil spring 161C.

[0181] The valve 161 in the open position defines an air flow path G and an ink flow path F between the valve 161 and the inner surface of the liquid bottle 80. The ink flow path F is a flow path for ink to flow. The ink flow path F is defined by the front end surface of the valve 161 in the open position and the inner surface of the liquid bottle 80. The air flow path G is a flow path for air to flow. The air flow path G is defined by the rear end surface of the valve 161 in the open position and the inner surface of the liquid bottle 80. The area of ​​the air flow path G is larger than the area of ​​the ink flow path F. Specifically, as Fig.18 As shown, in the cross-section of the liquid bottle 80 cut by a horizontal plane including the valve core 161A in the open position, the area S1 surrounded by the rear end surface of the valve core 161A and the inner surface of the liquid bottle 80 is larger than the area S2 surrounded by the front end surface of the valve core 161A and the inner surface of the liquid bottle 80.

[0182] [Connection between Liquid Bottle 80 and Ink Cartridge 100]

[0183] The user first understands the direction in which the protrusion 94 of the liquid bottle 80 can be inserted into the through hole 72 located at the leftmost side of the box cover 110. At this time, since the outer curved surface 94A and the rear outer flat surface 94D of the protrusion 94 are located at the position of clamping the opening 95 and the bottle tube body 96 in the front-to-back direction, the user can easily understand the direction in which the protrusion 94 can be inserted into the through hole 72.

[0184] Next, the user inserts the protrusion 94 into the through hole 72 located at the far left. At this time, the key member 99 is inserted into the key groove 74 in the through hole 72. In addition, at this time, for example, in the case where the user mistakenly inserts the protrusion 94 into the through hole 72 located at the second position from the left, since the key member 99 does not enter the key groove 74, it is possible to prevent the liquid bottle 80 from being installed at the wrong position. In addition, while the key member 99 is inserted into the key groove 74, the bottle tube body 96 is inserted into the communication port 119A of the ink cartridge 100, and the box tube body 115A is inserted into the opening 95 of the liquid bottle 80. At this time, the valve core 161A is pressed obliquely upward and forward by the box tube body 115A, thereby overcoming the force of the coil spring 161C and moving from the closed position to the open position. As a result, the liquid bottle 80 is connected to the ink cartridge 100. In this state, the bottle tube body 96 is located below the box tube body 115A. The air flow path G is located above the ink flow path F and the top of the box tube body 115A. An outer curved surface 94A of the outer peripheral surface of the projection 94 is supported by an inner curved surface 72A of the inner peripheral surface of the through hole 72 .

[0185] When the liquid bottle 80 is connected to the ink cartridge 100, the ink stored in the liquid bottle 80 flows to the ink chamber 111A through the ink flow path F and the internal space of the bottle tube body 96. In addition, when the ink flows, air enters the ink chamber 111A from the atmosphere communication port 112A and flows into the liquid bottle 80 through the cartridge tube body 115A. The air that flows into the liquid bottle 80 moves upward in the liquid bottle 80 through the air flow path G located above the top of the cartridge tube body 115A. In this way, the so-called gas-liquid replacement occurs, and the ink in the liquid bottle 80 is supplied to the ink chamber 111A.

[0186] [Installation of the Cartridge Cover 127 to the Ink Cartridge Set 51]

[0187] When the liquid bottle 80 is not connected to the ink cartridge set 51, the cartridge cover 127 is mounted on the ink cartridge set 51. The user holds the handle 133 of the cartridge cover 127 and holds the cartridge cover 127 in a posture in which the flat plate 132 can be inserted into the slit 73 of the cartridge cover 110.

[0188] The flat plate portion 132 is inserted into the slit 73 of the cartridge cover 110 , and the rubber member 129 of the cartridge cover 127 is inserted into the annular wall 122A of the ink cartridge 100 through the through hole 72 of the cartridge cover 110 .

[0189] like Fig.12 As shown, the flat plate portion 132 of the box cover 127 is inserted into the slit 73 of the box cover 110, so that the box cover 127 is in an installation posture in which the length direction of the opening 138 of the rubber member 129 is along the front-to-back direction and intersects with the horizontal direction. In the installation posture, the flange portion 140 is located on the left and right sides of the opening 138, and is not located below and above the opening 138.

[0190] like Fig.13 As shown in FIG. 1 , in the installed position, the box tube body 115A is inserted into the barrel portion 130 of the box cover 127 through the opening 138 of the rubber member 129. There is a gap between the inner circumferential surface 137 of the barrel portion 130 of the box cover 127 and the box tube body 115A. Thus, the ink attached to the box tube body 115A is difficult to move to the inner circumferential surface 137 of the barrel portion 130 by connecting the liquid bottle 80.

[0191] However, when the ink droplets attached to the outer surface of the box tube body 115A are large, the ink droplets fall from the box tube body 115A, and sometimes the ink droplets adhere to the inner peripheral surface 137 of the barrel 130. The ink droplets attached to the inner peripheral surface 137 of the barrel 130 move downward along the inner peripheral surface 137 due to gravity. The flange 140 is not located below the opening 138, so that the ink droplets attached to the inner peripheral surface 137 easily move to the inner side of the annular wall 122A through the opening 138. The ink droplets moving to the inner side of the annular wall 122A flow into the ink chamber 111A from the communication port 119A. If the flange 140 is located below the opening 138, the ink droplets are blocked by the flange 140, and it is difficult for the ink droplets to move to the inner side of the annular wall 122A through the opening 138.

[0192] In the process of reaching the installation posture, the convex portion 139 of the rubber member 129 slides relative to the inner surface 123 of the annular wall 122A. Since the abutting portion 136 abuts against the end surface of the opening of the barrel 130, the position of the rubber member 129 does not shift relative to the barrel 130. The convex portion 139 of the rubber member 129 abuts against the inner surface 123 of the annular wall 122A in a liquid-tight manner, so that the ink stored in the ink chamber 111A does not flow out to the outside of the ink cartridge 100 through the cartridge tube 115A and the communication port 119A.

[0193] [Effects of the Embodiments]

[0194] In the multifunction device 10, the centers C1, C2, C3, and C4 of the annular walls 122A, 122B, 122C, and 122D are offset to the right relative to the centers D1, D2, D3, and D4 of the ink chambers 111A, 111B, 111C, and 111D, respectively. Therefore, even if the outer diameter L3 of each annular wall 122A, 122B, 122C, and 122D is longer than the length L2 of each ink chamber 111A, 111B, and 111C in the left-right direction, the four annular walls 122A, 122B, 122C, and 122D can be arranged on the upper wall 104. Furthermore, when the centers C1, C2, C3, and C4 of the annular walls 122A, 122B, 122C, and 122D coincide with the centers D1, D2, D3, and D4 of the ink chambers 111A, 111B, 111C, and 111D in the left-right direction, respectively, the length L2 of the ink chambers 111A, 111B, and 111C in the left-right direction needs to be longer than the outer diameter L3 because the adjacent annular walls 122A, 122B, and 122C in the left-right direction are in contact. Therefore, the length of the ink cartridge 100 in the left-right direction becomes longer.

[0195] In the multifunction device 10, the center C1, C2, C3, C4 of each annular wall 122A, 122B, 122C, 122D is offset to the right relative to the center D1, D2, D3, D4 of each ink chamber 111A, 111B, 111C, 111D. The offset amounts B1, B2, B3, B4 of the center C1, C2, C3, C4 of each annular wall 122A, 122B, 122C, 122D relative to the center D1, D2, D3, D4 of each ink chamber 111A, 111B, 111C, 111D are different. Therefore, even if the outer diameter L3 of each annular wall 122A, 122B, 122C, 122D is longer than the length L2 of each ink chamber 111A, 111B, 111C in the left-right direction, the four annular walls 122A, 122B, 122C, 122D can be arranged at equal intervals on the upper wall 104. In addition, for example, compared with the case where the center C2 of the annular wall 122B is offset to the left relative to the center D2 of the ink chamber 111B and the center C3 of the annular wall 122C is offset to the right relative to the center D3 of the ink chamber 111C, the interval in the left-right direction between the center C2 of the annular wall 122B and the center C3 of the annular wall 122C is shorter.

[0196] In the multifunction device 10, the length L1 of the ink chamber 111D in the left-right direction is longer than the length L2 of the ink chamber 111C in the left-right direction. Therefore, even if the right end of the annular wall 122C is located on the right side of the partition wall 107C in the left-right direction, the right end of the annular wall 122D can be prevented from protruding to the right from the right wall 102.

[0197] In the multifunction peripheral 10 , since black ink, which is consumed in large amounts, is stored in the large-capacity ink chamber 111D, the frequency of ink replenishment can be reduced.

[0198] In the multifunction machine 10, since the annular wall 122C surrounds the box tube body 115C and the communication port 119C, the length L3 of the annular wall 122C in the left-right direction is long. Since the annular wall 122D surrounds the box tube body 115D and the communication port 119D, the length L3 of the annular wall 122D in the left-right direction is long. The annular wall 122C is provided to straddle the ink chamber 111C and the ink chamber 111D in the left-right direction, so it can be easily arranged on the upper wall 104. Even if the annular wall 122C is provided to straddle the ink chamber 111C and the ink chamber 111D in the left-right direction, the right end of the annular wall 122D can be prevented from protruding to the right from the right wall 102.

[0199] In the multifunction device 10, as Fig. 20 As shown in (A), the center K3 of the circle of the annular wall 122C is offset forward relative to the center T3 of the circle of the box tube body 115C. Fig. 20As shown in (B), compared with the case where the center K3 of the circle of the annular wall 122C coincides with the center T3 of the circle of the box tube body 115C, even if the diameter of the annular wall 122C is reduced, a space for arranging the communication port 119C can be ensured between the outer circumferential surface of the box tube body 115C and the inner circumferential surface of the annular wall 122C in front of the box tube body 115C. Fig. 20 Compared with the case shown in (B), the diameter of the annular wall 122C is smaller. Similarly, the diameter of the annular wall 122D is also smaller.

[0200] In the multifunction machine 10, the ink chamber 111A and the ink chamber 111B are adjacent to each other in the left-right direction via the partition wall 107A. The ink chamber 111B and the ink chamber 111C are adjacent to each other in the left-right direction via the partition wall 107B. The ink chamber 111C and the ink chamber 111D are adjacent to each other in the left-right direction via the partition wall 107C. Therefore, it is easy to become difficult to simultaneously confirm the height of the liquid level of the four ink chambers 111A, 111B, 111C, and 111D from one side in the left-right direction. In the multifunction machine 10, even if the user is from the right side in the left-right direction of the ink cartridge 100, the liquid level of the ink chambers 111A, 111B, and 111C can be confirmed through the left inclined surfaces 151A of the three concave surfaces 151. On the other hand, even if the user is from the left side in the left-right direction of the ink cartridge 100, the liquid level of the ink chambers 111B, 111C, and 111D can be confirmed through the right inclined surfaces 151C of the three concave surfaces 151. Therefore, the user can simultaneously check the heights of the liquid levels of the four ink chambers 111A, 111B, 111C, and 111D even from one side in the left-right direction of the ink cartridge 100 .

[0201] In the multifunction device 10, for example, when the liquid bottle 80 is pulled out from the ink cartridge set 51, even if the ink flows down from the bottle tube body 96 of the liquid bottle 80, the ink flows obliquely downward in the forward direction along the inclined surface 104A and is then blocked by the weir wall 109. Even if the ink blocked by the weir wall 109 is stored in the weir wall 109, it flows in the left-right direction along the weir wall 109. Therefore, it is possible to suppress the front surface 101A of the front wall 101 of the ink cartridge 100 from being contaminated by the ink.

[0202] [Modifications]

[0203] In the above-mentioned embodiment, the center C1, C2, C3, C4 of each annular wall 122A, 122B, 122C, 122D is offset to the right relative to the center D1, D2, D3, D4 of each ink chamber 111A, 111B, 111C, 111D. Fig.26As shown, the center C2 of the annular wall 122B may be offset to the left relative to the center D2 of the ink chamber 111B, and the center C3 of the annular wall 122C may be offset to the right relative to the center C3 of the ink chamber 111C. The offset amount of the center C2 of the annular wall 122B relative to the center D2 of the ink chamber 111B is equal to the offset amount B3 of the center C3 of the annular wall 122C relative to the center D3 of the ink chamber 111C. In addition, since the center C2 of the annular wall 122B is offset to the left relative to the center D2 of the ink chamber 111B, and the center C3 of the annular wall 122C is offset to the right relative to the center D3 of the ink chamber 111C, the offset of the center C2 of the annular wall 122B relative to the center D2 of the ink chamber 111B and the offset of the center C3 of the annular wall 122C relative to the center D3 of the ink chamber 111C are different in the direction from the ink chamber 111B toward the ink chamber 111C along the left-right direction, that is, in the right direction. Fig.26 In the modified example shown, even if the outer diameter L3 of each annular wall 122B, 122C is longer than the length L2 of each ink chamber 111B, 111C in the left-right direction, each annular wall 122B, 122C can be arranged on the upper wall 104. In other words, even if the length L2 of each ink chamber 111B, 111C in the left-right direction is not lengthened, each annular wall 122B, 122C can be arranged on the upper wall 104.

[0204] In the above embodiment, four annular walls 122A, 122B, 122C, and 122D are provided, but it may also be, for example Fig.21 As shown, the four annular walls 122A, 122B, 122C, and 122D are omitted. In this case, the box tube body 115C and the communication port 119C are examples of the first communication portion. The box tube body 115D and the communication port 119D are examples of the second communication portion.

[0205] In the above-mentioned embodiment, four annular walls 122A, 122B, 122C, 122D and four box tubes 115A, 115B, 115C, 115D are provided, but it may also be, for example Fig. 22 As shown, the four annular walls 122A, 122B, 122C, 122D and the four box tube bodies 115A, 115B, 115C, 115D are omitted. In this case, the opening 95 and the valve 161 of the liquid bottle 80 are omitted. The bottle tube body 96 preferably has two flow paths for the flow of ink and the flow path for the flow of air. Fig. 22 In the illustrated modification, the communication port 119C is an example of a first communication portion, and the communication port 119D is an example of a second communication portion.

[0206] In the above-mentioned implementation mode, it may also be that Fig.23As shown, the four communication ports 119A, 119B, 119C, 119D and the four annular walls 122A, 122B, 122C, 122D are omitted. In this case, the bottle tube body 96 of the liquid bottle 80 is omitted. Each box tube body 115A, 115B, 115C, 115D preferably has two flow paths for ink flow and a flow path for air flow. Fig.23 In the illustrated modification, the box tube body 115C is an example of the first communication portion. The box tube body 115D is an example of the second communication portion. In addition, only the four communication ports 119A, 119B, 119C, and 119D may be omitted.

[0207] In the above-mentioned embodiment, the four ink chambers 111A, 111B, 111C, and 111D are adjacent to each other in the left-right direction via the partition walls 107A, 107B, and 107C, but it may also be possible, for example Fig.24 As shown, the box tube 115A is arranged at intervals in the left-right direction. The center C9 of the box tube 115A in the left-right direction is offset to the right relative to the center D1 of the ink chamber 111A in the left-right direction. The center C10 of the box tube 115B in the left-right direction is offset to the right relative to the center D2 of the ink chamber 111B in the left-right direction. The offset amount E2 of the center C10 of the box tube 115B relative to the center D2 of the ink chamber 111B is smaller than the offset amount E1 of the center C9 of the box tube 115A relative to the center D1 of the ink chamber 111A. The center C11 of the box tube 115C in the left-right direction is offset to the left relative to the center D3 of the ink chamber 111C. The offset amount E3 of the center C11 of the box tube 115C relative to the center D3 of the ink chamber 111C is the same as the offset amount E2 of the center C10 of the box tube 115B relative to the center D2 of the ink chamber 111B. The center C12 of the box tube body 115D in the left-right direction is offset to the left relative to the center D4 of the ink chamber 111D in the left-right direction. The offset amount E4 of the center C12 of the box tube body 115D relative to the center D4 of the ink chamber 111D is larger than the offset amount E1 of the center C9 of the box tube body 115A relative to the center D1 of the ink chamber 111A. In addition, in the right direction, the offset of the center C9 of the box tube body 115A relative to the center D1 of the ink chamber 111A, the offset of the center C10 of the box tube body 115B relative to the center D2 of the ink chamber 111B, the offset of the center C11 of the box tube body 115C relative to the center D3 of the ink chamber 111C, and the offset of the center C12 of the box tube body 115D relative to the center D4 of the ink chamber 111D are different from each other.

[0208] The distance L8 along the left-right direction between the center C9 of the box tube body 115A and the right surface 103R of the left wall 103 is longer than the distance L9 along the left-right direction between the center C10 of the box tube body 115B and the right surface 103R of the left wall 103. The distance L10 along the left-right direction between the center C11 of the box tube body 115C and the right surface 103R of the left wall 103 is longer than the distance L11 along the left-right direction between the center C12 of the box tube body 115D and the right surface 103R of the left wall 103. The distance L9 is longer than the distance L10. The distance L12 along the left-right direction between the center C9 of the box tube body 115A and the center C10 of the box tube body 115B and the distance along the left-right direction between the center C10 of the box tube body 115B and the center C11 of the box tube body 115C are equal. The distance in the left-right direction between the center C11 of the box tube body 115C and the center C12 of the box tube body 115D is equal to the distance L12.

[0209] exist Fig.24 In the modified example shown, the distance between the center C9 of the box tube 115A and the center C12 of the box tube 115D in the left-right direction is shorter than when the center of each box tube 115A, 115B, 115C, 115D in the left-right direction coincides with the center D1 of the ink chamber 111A, the center D2 of the ink chamber 111B, the center D3 of the ink chamber 111C, and the center D4 of the ink chamber 111D in the left-right direction. Therefore, for example, when a cover covering the top of the four box tubes 115A, 115B, 115C, 115D and the four communication ports 119A, 119B, 119C, 119D is provided, the length of the cover in the left-right direction can be shortened.

[0210] In addition, Fig.24 In the embodiment, the four annular walls 122A, 122B, 122C, and 122D are omitted, but they may be provided. In this case, a portion of each annular wall 122A, 122B, and 122C may be located outside each ink chamber 111A, 111B, and 111C in the left-right direction. In addition, a portion of each annular wall 122A, 122B, and 122C may be located in the same position as each ink chamber 111B, 111C, and 111D adjacent to each other in the left-right direction.

[0211] In the above-mentioned embodiment, the center K1, K2, K3, K4 of the circle of each annular wall 122A, 122B, 122C, 122D is offset downward compared to the center T1, T2, T3, T4 of the circle of each box tube body 115A, 115B, 115C, 115D, but it can also be, for example, consistent with the center T1, T2, T3, T4 of the circle of each box tube body 115A, 115B, 115C, 115D.

[0212] In the above-described embodiment, the front surface 101A of the front wall 101 has three concave surfaces 151 that are recessed rearward, but the three concave surfaces 151 may be omitted.

[0213] In the above-mentioned embodiment, the four upper marks 152A, 152B, 152C, 152D and the four lower marks 153A, 153B, 153C, 153D are located on the front surface 101A of the front wall 101, but the four upper marks 152A, 152B, 152C, 152D and the four lower marks 153A, 153B, 153C, 153D may also be omitted.

[0214] In the above embodiment, the upper wall 104 of the ink cartridge 100 may not have the inclined surface 104A that is inclined relative to the front-rear direction so as to extend downward toward the front. In this case, the four communication portions 113A, 113B, 113C, and 113D are provided on a surface along the horizontal plane.

[0215] In the above embodiment, the weir wall 109 is provided to protrude obliquely forward from the inclined surface 104A, but the shape of the weir wall 109 is not limited as long as it can block the ink flowing along the inclined surface 104A.

[0216] In the above-mentioned embodiment, the cartridge cover 110 is provided to hold the ink cartridge 100 in a state of covering the front side of the ink cartridge 100 from the front, but the cartridge cover 110 may be omitted. In this case, four through holes 72 are formed in the ink cartridge 100 in a manner corresponding to any one of the four ink chambers 111A, 111B, 111C, and 111D. Specifically, a cylindrical hole portion extending obliquely upward from the front end portion of the upper surface of the upper wall 104 of the ink cartridge 100 is provided in a manner surrounding the periphery of each annular wall 122A, 122B, 122C, and 122D.

[0217] In the above-mentioned embodiment, the centers C1, C2, C3, and C4 of the annular walls 122A, 122B, 122C, and 122D are offset from the centers D1, D2, D3, and D4 of the ink chambers 111A, 111B, 111C, and 111D, but it is sufficient that a portion of the annular wall 122C is positioned in the left-right direction in accordance with the position of the ink chamber 111D. In other words, the annular wall 122C may be provided so as to span the ink chamber 111C and the ink chamber 111D in the left-right direction.

[0218] In the above-mentioned embodiment, the center C1, C2, C3, C4 of each annular wall 122A, 122B, 122C, 122D is offset to the right relative to the center D1, D2, D3, D4 of each ink chamber 111A, 111B, 111C, 111D, but it may also be, for example Fig. 27As shown, the left-right centers C15, C16, C17, and C18 of the atmosphere communication ports 112A, 112B, 112C, and 112D are offset from the centers D1, D2, D3, and D4 of the ink chambers 111A, 111B, 111C, and 111D.

[0219] Specifically, the center C15 of the atmosphere communication port 112A in the left-right direction is slightly offset to the right relative to the center D1 of the ink chamber 111A. The center C16 of the atmosphere communication port 112B in the left-right direction is offset to the right relative to the center D2 of the ink chamber 111B. The offset amount B12 of the center C16 of the atmosphere communication port 112B relative to the center D2 of the ink chamber 111B is larger than the offset amount B11 of the center C15 of the atmosphere communication port 112A relative to the center D1 of the ink chamber 111A. The center C17 of the atmosphere communication port 112C in the left-right direction is significantly offset to the right relative to the center D3 of the ink chamber 111C. The offset amount B13 of the center C17 of the atmosphere communication port 112C relative to the center D3 of the ink chamber 111C is larger than the offset amount B12 of the center C16 of the atmosphere communication port 112B relative to the center D2 of the ink chamber 111B. The center C18 of the atmosphere communication port 112D in the left-right direction is offset to the left relative to the center D4 of the ink chamber 111D. The offset B14 of the center C18 of the atmosphere communication port 112D relative to the center D4 of the ink chamber 111D is smaller than the offset B13 and larger than the offset B12. In addition, in the right direction, the offset of the center C15 of the atmosphere communication port 112A relative to the center D1 of the ink chamber 111A, the offset of the center C16 of the atmosphere communication port 112B relative to the center D2 of the ink chamber 111B, the offset of the center C17 of the atmosphere communication port 112C relative to the center D3 of the ink chamber 111C, and the offset of the center C18 of the atmosphere communication port 112D relative to the center D4 of the ink chamber 111D are different from each other. The atmosphere communication port 112B is an example of the third communication portion. The atmosphere communication port 112C is an example of the fourth communication portion.

[0220] exist Fig. 27 In the modified example shown, for example, the interval in the left-right direction between the center C16 of the atmosphere communication port 112B and the center C17 of the atmosphere communication port 112C is shorter than when the center C16 of the atmosphere communication port 112B is offset to the left relative to the center D2 of the ink chamber 111B. Therefore, for example, when a cover covering the atmosphere communication port 112B and the atmosphere communication port 112C is provided, the length of the cover in the left-right direction can be shortened.

[0221] Alternatively, it can be, Fig.28As shown, the left-right centers C21, C22, C23, and C24 of the outflow tubes 124A, 124B, 124C, and 124D are offset from the centers D1, D2, D3, and D4 of the ink chambers 111A, 111B, 111C, and 111D.

[0222] Specifically, the center C21 of the outflow tube 124A in the left-right direction is slightly offset to the right relative to the center D1 of the ink chamber 111A. The center C22 of the outflow tube 124B in the left-right direction is offset to the right relative to the center D2 of the ink chamber 111B. The offset amount B22 of the center C22 of the outflow tube 124B relative to the center D2 of the ink chamber 111B is larger than the offset amount B21 of the center C21 of the outflow tube 124A relative to the center D1 of the ink chamber 111A. The center C23 of the outflow tube 124C in the left-right direction is greatly offset to the right relative to the center D3 of the ink chamber 111C. The offset amount B23 of the center C23 of the outflow tube 124C relative to the center D3 of the ink chamber 111C is larger than the offset amount B22 of the center C22 of the outflow tube 124B relative to the center D2 of the ink chamber 111B. The center C24 of the outflow tube 124D in the left-right direction is offset to the right relative to the center D4 of the ink chamber 111D. The offset B24 of the center C24 of the outflow tube 124D relative to the center D4 of the ink chamber 111D is smaller than the offset B23 and larger than the offset B22. In addition, in the right direction, the offset of the center C21 of the outflow tube 124A relative to the center D1 of the ink chamber 111A, the offset of the center C22 of the outflow tube 124B relative to the center D2 of the ink chamber 111B, the offset of the center C23 of the outflow tube 124C relative to the center D3 of the ink chamber 111C, and the offset of the center C24 of the outflow tube 124D relative to the center D4 of the ink chamber 111D are different from each other. The outflow tube 124B is an example of the third connecting portion. The outflow tube 124C is an example of the fourth connecting portion.

[0223] exist Fig.28 In the modified example shown, for example, the interval in the left-right direction between the center C22 of the outflow tube 124B and the center C23 of the outflow tube 124C is shorter than when the center C22 of the outflow tube 124B is offset to the left relative to the center D2 of the ink chamber 111B. Therefore, for example, when a cover covering the outflow tube 124B and the outflow tube 124C is provided, the length of the cover in the left-right direction can be shortened.

[0224] In addition, if Fig.29As shown, each of the atmosphere communication ports 112A, 112B, 112C, 112D may be connected to an atmosphere communication passage 181A, 181B, 181C, 181D, respectively. Atmosphere opening ports 182A, 182B, 182C, 182D opening upward may be provided at the upper end of each of the atmosphere communication passages 181A, 181B, 181C, 181D, respectively. The position of the atmosphere opening port 182A coincides with the position of the ink chamber 111B in the left-right direction. The position of the atmosphere opening port 182B coincides with the position of the ink chamber 111C in the left-right direction. The position of the atmosphere opening port 182C coincides with the position of the ink chamber 111D in the left-right direction. The position of the atmosphere opening port 182D coincides with the position of the ink chamber 111D in the left-right direction.

[0225] The atmospheric communication port 112A, the atmospheric communication passage 181A, and the atmospheric opening port 182A constitute a communication portion 191A that communicates the ink chamber 111A with the outside. The length L31 of the communication portion 191A in the left-right direction is longer than the length L2 of the ink chamber 111A in the left-right direction. The atmospheric communication port 112B, the atmospheric communication passage 181B, and the atmospheric opening port 182B constitute a communication portion 191B that communicates the ink chamber 111B with the outside. The length L32 of the communication portion 191B in the left-right direction is longer than the length L2 of the ink chamber 111B in the left-right direction. The atmospheric communication port 112C, the atmospheric communication passage 181C, and the atmospheric opening port 182C constitute a communication portion 191C that communicates the ink chamber 111C with the outside. The length L32 of the communication portion 191C in the left-right direction is longer than the length L2 of the ink chamber 111C in the left-right direction. The atmosphere communication port 112D, the atmosphere communication passage 181D, and the atmosphere opening port 182D constitute a communication portion 191D that communicates the ink chamber 111D with the outside. The length L32 of the communication portion 191D in the left-right direction is shorter than the length L1 of the ink chamber 111D in the left-right direction.

[0226] The position of a part of the connecting portion 191A coincides with the position of the ink chamber 111B in the left-right direction. That is, the connecting portion 191A is located at a position extending from the ink chamber 111A to the ink chamber 111B in the left-right direction. The position of a part of the connecting portion 191B coincides with the position of the ink chamber 111C in the left-right direction. That is, the connecting portion 191B is located at a position extending from the ink chamber 111B to the ink chamber 111C in the left-right direction. The position of a part of the connecting portion 191C coincides with the position of the ink chamber 111C in the left-right direction. That is, the connecting portion 191C is located at a position extending from the ink chamber 111C to the ink chamber 111D in the left-right direction. The connecting portion 191D coincides with the position of the ink chamber 111D in the left-right direction. The connecting portion 191A is an example of a first connecting portion that connects the inside and outside of the first storage chamber. The connecting portion 191B is an example of a second connecting portion that connects the inside and outside of the second storage chamber.

[0227] exist Fig.29 In the modified example shown, the communication portion 191A is located at a position extending from the ink chamber 111A to the ink chamber 111B in the left-right direction, the communication portion 191B is located at a position extending from the ink chamber 111B to the ink chamber 111C in the left-right direction, and the communication portion 191C is located at a position extending from the ink chamber 111C to the ink chamber 111D in the left-right direction. Therefore, even if the length L2 of each ink chamber 111A, 111B, 111C in the left-right direction is not lengthened, each communication portion 191A, 191B, 191C can be arranged on the upper wall 104. In addition, the communication portion 191D can be arranged within the width range of the ink chamber 111D. In addition, since each of the atmosphere communication paths 181A, 181B, 181C, and 181D can be arranged in a large size in the left-right direction, it is easy to form the atmosphere communication paths 181A, 181B, 181C, and 181D in a complicated shape, and it is possible to suppress the ink stored in each of the ink chambers 111A, 111B, 111C, and 111D from evaporating or flowing out through each of the communication portions 191A, 191B, 191C, and 191D. In addition, since each of the atmosphere openings 182A, 182B, 182C, and 182D can be made larger in the left-right direction, for example, when a cover for closing each of the atmosphere openings 182A, 182B, 182C, and 182D is provided, it is easy to close each of the atmosphere openings 182A, 182B, 182C, and 182D with the cover.

[0228] In the above-mentioned embodiment, the ink cartridge set 51 comprises an ink cartridge 100, a cartridge cover 110 and a cartridge cover 127, but it may also be Fig.30 As shown in FIG. 1 , the ink cartridge 100 further includes a connecting member 171 that connects the four ink tubes 32 to the four outflow tubes 124A, 124B, 124C, and 124D. The connecting member 171 includes four holding portions 171A, 171B, 171C, and 171D that hold the four ink tubes 32 at equal intervals. In this case, four cylindrical insertion walls 175A, 175B, 175C, and 175D into which the holding portions 171A, 171B, 171C, and 171D can be inserted are provided on the upper wall 104 of the ink cartridge 100.

[0229] The insertion wall 175A extends upward from the upper wall 104 so as to surround the upper end of the outflow tube 124A. The center of the insertion wall 175A in the left-right direction coincides with the center C21 of the outflow tube 124A in the left-right direction. The position of the entire insertion wall 175A in the left-right direction coincides with the position of the ink chamber 111A. The length L41 of the insertion wall 175A in the left-right direction is equal to the length L2 of the ink chamber 111A in the left-right direction. The insertion wall 175A and the outflow tube 124A form a connecting portion 211A that connects the ink chamber 111A and the outside.

[0230] The insertion wall 175B extends upward from the upper wall 104 in a manner surrounding the upper end portion of the outflow tube 124B. The center of the insertion wall 175B in the left-right direction coincides with the center C22 of the outflow tube 124B in the left-right direction. The position of a portion of the insertion wall 175B coincides with the position of the ink chamber 111C in the left-right direction. That is, the insertion wall 175B is located at a position spanning from the ink chamber 111B to the ink chamber 111C in the left-right direction. The length L41 of the insertion wall 175B in the left-right direction is equal to the length L2 of the ink chamber 111B in the left-right direction. The connecting portion 211B connecting the ink chamber 111B and the outside is formed by the insertion wall 175B and the outflow tube 124B. The connecting portion 211B is an example of a first connecting portion connecting the inside and the outside of the first storage chamber.

[0231] The insertion wall 175C extends upward from the upper wall 104 in a manner surrounding the upper end portion of the outflow tube 124C. The center of the insertion wall 175C in the left-right direction coincides with the center C23 of the outflow tube 124C in the left-right direction. The position of a portion of the insertion wall 175C coincides with the position of the ink chamber 111D in the left-right direction. That is, the insertion wall 175C is located at a position spanning the ink chamber 111D from the ink chamber 111C in the left-right direction. The length L41 of the insertion wall 175C in the left-right direction is equal to the length L2 of the ink chamber 111C in the left-right direction. A connecting portion 211C connecting the ink chamber 111C and the outside is formed by the insertion wall 175C and the outflow tube 124C. The connecting portion 211C is an example of a second connecting portion connecting the inside and the outside of the second storage chamber.

[0232] The insertion wall 175D extends upward from the upper wall 104 so as to surround the upper end of the outflow tube 124D. The center of the insertion wall 175D in the left-right direction coincides with the center C24 of the outflow tube 124D in the left-right direction. The position of the entire insertion wall 175D in the left-right direction coincides with the position of the ink chamber 111D. The length L41 of the insertion wall 175D in the left-right direction is smaller than the length L1 of the ink chamber 111D in the left-right direction. The insertion wall 175D and the outflow tube 124D form a connecting portion 211D that connects the ink chamber 111D and the outside.

[0233] exist Fig.30 In the modified example shown, the four ink tubes 32 are inserted into the four outflow tubes 124A, 124B, 124C, 124D by inserting the respective holding portions 171A, 171B, 171C, 171D into the respective insertion walls 175A, 175B, 175C, 175D. As a result, the ink tubes 32 are connected to the respective outflow tubes 124A, 124B, 124C, 124D.

[0234] exist Fig.30In the modified example shown, the connecting portion 211B is located at a position extending from the ink chamber 111B to the ink chamber 111C in the left-right direction, and the connecting portion 211C is located at a position extending from the ink chamber 111C to the ink chamber 111D in the left-right direction. Therefore, even if the length L2 of each ink chamber 111A, 111B, 111C in the left-right direction is not lengthened, the interval between each connecting portion 211A, 211B, 211C, 211D adjacent in the left-right direction can be widened, or the length of each connecting portion 211A, 211B, 211C, 211D in the left-right direction can be lengthened. Therefore, it is possible to form a structure that makes it easy to insert each holding portion 171A, 171B, 171C, 171D into each insertion wall 175A, 175B, 175C, 175D. Furthermore, if the ink tubes 32 are connected to the outflow tubes 124A, 124B, 124C, and 124D via the connecting members 171 , the outflow tubes 124A, 124B, 124C, and 124D may not be inserted.

[0235] In the above-mentioned embodiment, each annular wall 122A, 122B, 122C, 122D and each outflow pipe 124A, 124B, 124C, 124D has a cylindrical shape, but it is not particularly limited. For example, each annular wall 122A, 122B, 122C, 122D and each outflow pipe 124A, 124B, 124C, 124D may also be a square cylinder.

[0236] In the above embodiment, each of the air communication openings 112A, 112B, 112C, and 112D is a rectangular shape that is long in the left-right direction, but the shape is not particularly limited. For example, each of the air communication openings 112A, 112B, 112C, and 112D may be circular or square.

[0237] In the above embodiment, the position of the key groove 74 relative to the inner curved surface 72A is different in each through hole 72, but it may be the same in each through hole 72. In addition, the key groove 74 may be omitted. When the key groove 74 is omitted, the key member 99 is omitted.

[0238] In the above-described embodiment, the position of the key member 99 relative to the rear outer plane 94D is different in each liquid bottle 80 storing any one of black, yellow, cyan, and magenta inks, but may be the same in each liquid bottle 80. In addition, the key member 99 may be omitted. In the case where the key member 99 is omitted, the key groove 74 may be omitted.

[0239] In the above-mentioned embodiment, the protrusion 139 of the rubber member 129 of the box cover 127 is in liquid-tight contact with the inner surface 123 of each annular wall 122A, 122B, 122C, and 122D, but it is also possible that the protrusion 139 is in liquid-tight contact with the end surface of each annular wall 122A, 122B, 122C, and 122D.

[0240] like Fig.25 As shown, the rubber member 129 of the cartridge cover 127 has convex portions 141 and 142 protruding in an annular manner from the outer peripheral surface. The convex portion 141 of the convex portions 141 and 142 is located above the convex portion 142. That is, the convex portions 141 and 142 are separated and arranged in the up-down direction. The outer diameter of the convex portion 141 is larger than the outer shape of the through hole 72 of the cartridge cover 110. The outer diameter of the convex portion 142 is larger than the outer diameter of the end surface 143 of each annular wall 122A, 122B, 122C, 122D of the ink cartridge 100.

[0241] When the rubber member 129 of the cartridge cover 127 is inserted into the annular walls 122A, 122B, 122C, and 122D of the ink cartridge 100 through the through hole 72 of the cartridge cover 110, the convex portion 142 of the rubber member 129 abuts against the end faces 143 of the annular walls 122A, 122B, 122C, and 122D through the through hole 72 of the cartridge cover 110. The convex portion 141 of the rubber member 129 abuts against the back face 144 of the cartridge cover 110 through the through hole 72 of the cartridge cover 110. As the convex portion 141 abuts against the back face 144 of the cartridge cover 110, the convex portion 142 is pressed against the end faces 143 of the annular walls 122A, 122B, 122C, and 122D. As a result, the convex portion 142 abuts against the end faces 143 in a liquid-tight manner.

[0242] Even if force is applied to the rubber member 129 when the protrusions 141 and 142 of the rubber member 129 pass through the through hole 72 of the box cover 110, the contact portion 136 of the rubber member 129 contacts the end surface of the opening of the cylinder 130, so the position of the rubber member 129 relative to the outer peripheral surface of the cylinder 130 will not be displaced.

[0243] In the above-described embodiment, the flange portion 140 extends from the left and right ends of the contact portion 136 , but the flange portion 140 may be located only at one of the left or right ends of the contact portion 136 .

[0244] In the above-mentioned embodiment, the outer shape of each communication port 119A, 119B, 119C, 119D of the ink cartridge 100 and the through hole 72 of the box cover 110 is circular at the front side and quadrilateral at the rear side, but the outer shape is not limited to this. For example, the outer shape of each communication port 119A, 119B, 119C, 119D or the through hole 72 can be circular or quadrilateral.

[0245] In addition, the box cover 127 may be connected to the ink cartridge 100 or the box cover 110 when the box cover 127 is not attached to the annular wall 122A, 122B, 122C, 122D. That is, the ink cartridge set 51 may include a holding member composed of an arm or the like that holds the box cover 127 removed from the annular wall 122 in a state connected to the ink cartridge 100 or the box cover 110. In addition, the handle 133 may be omitted in the box cover 127, or may be in another shape.

Claims

1. A box that can be connected to a liquid bottle storing a liquid and is provided in a liquid consuming device that consumes the liquid, characterized in that: have: a first storage chamber and a second storage chamber, the first storage chamber and the second storage chamber being arranged in a width direction of the liquid consumption device and being defined by a first surface and a second surface respectively facing each other in the width direction; a first communicating portion, the first communicating portion being connectable to the liquid bottle to connect the inside and the outside of the first storage chamber; as well as a second connecting portion, which can be connected to the liquid bottle to connect the inside and outside of the second storage chamber, The center of the first communication portion in the width direction is offset in the width direction relative to the center of the first storage chamber in the width direction. A center of the second communication portion in the width direction is offset from a center of the second storage chamber in the width direction.

2. The box according to claim 1, characterized in that The center of the first communicating portion is offset from the center of the first storage chamber in a manner different from the center of the second communicating portion in a manner different from the center of the second storage chamber.

3. The box according to claim 2, characterized in that A length of the second storage chamber in the width direction is longer than a length of the first storage chamber in the width direction.

4. The box according to claim 3, characterized in that The first storage chamber stores colored ink. The second storage chamber stores black ink.

5. The box according to claim 4, characterized in that The first connecting portion has a first injection port for liquid injection, The second communication portion has a second injection port for injecting liquid.

6. The box according to claim 5, characterized in that The first communicating portion has a first tube wall, the first tube wall surrounds the first injection port and can be installed with a cover that closes the opening of the first tube wall. The second communicating portion has a second tube wall, which surrounds the second injection port and can be installed with a cover that closes the opening of the second tube wall. A distance along the width direction from the first surface of the first storage chamber to the center of the first tube wall in the width direction is different from a distance along the width direction from the first surface of the second storage chamber to the center of the second tube wall in the width direction. A position of a portion of the first tube wall coincides with a position of the second storage chamber in the width direction.

7. The box according to claim 6, characterized in that The first communication portion includes a first nozzle for communicating the inside and the outside of the first storage chamber. The second communication portion has a second nozzle for communicating the inside and the outside of the second storage chamber. The first barrel wall surrounds the first nozzle and the first injection port, The second cylinder wall surrounds the second nozzle and the second injection port.

8. The box according to claim 7, characterized in that In the direction in which the first nozzle and the first injection port are arranged, the center of the opening of the first barrel wall is offset toward the first injection port relative to the center of the opening of the first nozzle. In the direction in which the second nozzle and the second injection port are arranged, the center of the opening of the second tube wall is offset toward the second injection port relative to the center of the opening of the second nozzle.

9. The box according to claim 1, characterized in that A partition wall is provided, the partition wall having the second surface defining the first storage chamber and the first surface defining the second storage chamber, and partitioning the first storage chamber and the second storage chamber in the width direction, The first storage chamber and the second storage chamber are provided with a visual confirmation surface that enables visual confirmation of the first storage chamber and the second storage chamber from the front in the front-rear direction orthogonal to the width direction and the up-down direction, The visual confirmation surface has a concave surface that is recessed from a portion that coincides with the partition wall in the width direction. The concave surface has a first inclined surface facing the width direction.

10. The box according to claim 9, characterized in that have: a second inclined surface on which the first connecting portion is located, the second inclined surface being inclined downward relative to the front-rear direction as it moves toward the front in the front-rear direction orthogonal to the width direction and the up-down direction; and A rib is located forward of the first communicating portion in the second inclined surface, protrudes upward from the second inclined surface, and extends in the width direction.

11. The box according to claim 10, characterized in that A mark is provided, the mark being located on the visual confirmation surface and indicating the height of the liquid level of the liquid stored in the first storage chamber, A center of the first communication portion in the width direction is offset from a center of the mark in the width direction in the width direction.

12. A cartridge that can be connected to a liquid bottle storing a liquid and is provided in a liquid consuming device that consumes the liquid, characterized in that: have: a first storage chamber and a second storage chamber, the first storage chamber and the second storage chamber being arranged in a width direction of the liquid consumption device and being defined by a first surface and a second surface respectively facing each other in the width direction; a first communicating portion connecting the inside and the outside of the first storage chamber; as well as a second communicating portion connecting the inside and the outside of the second storage chamber, A position of a portion of the first communication portion coincides with a position of the second storage chamber in the width direction.

13. A cartridge that can be connected to a liquid bottle storing a liquid and is provided in a liquid consuming device that consumes the liquid, characterized in that: have: a first storage chamber and a second storage chamber, the first storage chamber and the second storage chamber being arranged in a width direction of the liquid consumption device and being defined by a first surface and a second surface respectively facing each other in the width direction; a third connecting portion connecting the inside and the outside of the first storage chamber; as well as a fourth connecting portion connecting the inside and the outside of the second storage chamber, The center of the third communication portion in the width direction is offset in the width direction relative to the center of the first storage chamber in the width direction. The center of the fourth communication portion in the width direction is offset in the width direction relative to the center of the second storage chamber in the width direction. The manner in which the center of the third communicating portion is offset from the center of the first storage chamber is different from the manner in which the center of the fourth communicating portion is offset from the center of the second storage chamber.

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