Liquid ejection device and liquid ejection system

Abstract

To provide a liquid ejection device which enables reduction of a possibility of contamination in a periphery of the liquid ejection device, and to provide a liquid ejection system.SOLUTION: A liquid ejection device is a liquid ejection device to be coupled to a mounting unit 13 on which a liquid accommodation body configured to accommodate a liquid is mounted. The liquid ejection device includes an ejection unit configured to eject the liquid, a device flow path extending from the ejection unit, and a reception unit 43 configured to receive the liquid. The device flow path includes a coupling unit 24 to be coupled to the mounting unit, and the reception unit is positioned vertically below the coupling unit.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a liquid ejection device and a liquid ejection system.

Background Art

[0002] Patent Document 1 describes a liquid ejection device that can be connected to a mounting unit to which a liquid container is mounted. When the mounting unit and the liquid ejection device are connected to each other, liquid is supplied from the liquid container to the liquid ejection device.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In such a liquid ejection device, the mounting unit may be removed. In this case, there is a risk of soiling the surroundings of the liquid ejection device due to liquid dripping from the connection point of the liquid ejection device.

Means for Solving the Problems

[0005] The liquid ejection device for solving the above problems is a liquid ejection device connected to a mounting unit to which a liquid container for storing liquid is mounted, and includes a discharge unit that discharges liquid, a device flow path that extends from the discharge unit, and a receiving unit that receives liquid. The device flow path has a connection portion connected to the mounting unit, and the receiving unit is located vertically below the connection portion.

[0006] The liquid ejection system for solving the above problems includes the liquid ejection device and the mounting unit.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an example of a liquid ejection system including a liquid ejection device will be described with reference to the drawings. The liquid ejection device is, for example, an inkjet printer that prints images such as characters and photographs by ejecting ink, which is an example of a liquid, onto a medium such as paper or fabric.

[0009] As shown in FIG. 1, the liquid ejection system 11 includes a liquid ejection device 12 and a mounting unit 13. The liquid ejection device 12 is configured to eject liquid. The mounting unit 13 is configured to be connectable to the liquid ejection device 12. In FIG. 1, the mounting unit 13 is connected to the liquid ejection device 12. The mounting unit 13 is configured such that a liquid container 63 described later is mounted thereon. When the mounting unit 13 is connected to the liquid ejection device 12, liquid can be supplied from the mounting unit 13 to the liquid ejection device 12.

[0010] <Liquid ejection device> First, the liquid ejection device 12 will be described. The liquid ejection device 12 includes a device housing 14. The device housing 14 is, for example, elongated in one direction. In one example, the device housing 14 is elongated in the scanning direction D1. The device housing 14 has a first housing portion 15, a second housing portion 16, and a central housing portion 17. The first housing portion 15 and the second housing portion 16 are portions located at the ends of the device housing 14 in the scanning direction D1. The central housing portion 17 is a portion adjacent to the first housing portion 15 and the second housing portion 16. The central housing portion 17 is sandwiched between the first housing portion 15 and the second housing portion 16 in the scanning direction D1. The first housing portion 15, the central housing portion 17, and the second housing portion 16 are arranged in this order in the scanning direction D1.

[0011] The liquid ejection device 12 includes legs 18. The legs 18 support the device housing 14. In one example, the legs 18 extend downward from the first housing portion 15 and the second housing portion 16. The legs 18 have a first leg portion 19 and a second leg portion 20. The first leg portion 19 is a portion that extends downward from the first housing portion 15. The second leg portion 20 is a portion that extends downward from the second housing portion 16.

[0012] The liquid ejection device 12 may be configured such that the mounting unit 13 fits within its own footprint space. For example, the liquid ejection device 12 may define a placement space A1. In one example, the device housing 14 and the legs 18 define the placement space A1. The placement space A1 is an area where the mounting unit 13 connected to the liquid ejection device 12 fits. The placement space A1 is an area that overlaps the device housing 14 when viewed in the vertical direction D2. In one example, the placement space A1 is an area vertically below the first housing portion 15. Therefore, when viewed in the vertical direction D2, the device housing 14 overlaps the mounting unit 13. Specifically, when viewed in the vertical direction D2, the first housing portion 15 overlaps the mounting unit 13. By positioning the mounting unit 13 in the placement space A1, the likelihood of increasing the footprint space of the liquid ejection system 11 is reduced.

[0013] As shown in FIG. 2, the liquid ejection device 12 includes a discharge unit 21. The discharge unit 21 is configured to discharge liquid. The discharge unit 21 discharges liquid onto the medium M1. For example, the discharge unit 21 discharges liquid onto the medium M1 conveyed within the device housing 14. In the liquid ejection device 12, the medium M1 is conveyed in the conveyance direction D3. The conveyance direction D3 is a direction different from the vertical direction D2. In one example, the conveyance direction D3 is also a direction different from the scanning direction D1. For example, the conveyance direction D3 is a direction from the rear to the front of the device housing 14. The medium M1 is discharged from the front surface of the device housing 14 after being printed. The discharge unit 21 prints an image on the medium M1 by discharging liquid onto the medium M1.

[0014] The discharge unit 21 is configured to scan the medium M1. The discharge unit 21 is configured to move in the scanning direction D1. Specifically, the discharge unit 21 moves within the device housing 14 in the scanning direction D1 and the opposite direction. Thereby, the discharge unit 21 can discharge liquid over the entire width of the medium M1. Thus, in one example, the discharge unit 21 is a serial head. The discharge unit 21 may also be a line head capable of discharging liquid all at once over the entire width of the medium M1.

[0015] The liquid ejection device 12 includes a device flow path 22. The device flow path 22 is configured such that liquid can flow through it. The device flow path 22 extends from the ejection unit 21. The device flow path 22 is connected to the ejection unit 21 and the mounting unit 13. Liquid is supplied from the mounting unit 13 to the ejection unit 21 through the device flow path 22.

[0016] The device flow path 22 has one or more flow portions 23. The flow portions 23 are the portions through which liquid flows. The flow portions 23 are connected to the ejection unit 21. The flow portions 23 extend within the device housing 14. The flow portions 23 include, for example, tubes. The device flow path 22 has the same number of flow portions 23 as the liquid containers 63. Thus, the device flow path 22 can supply liquid from a plurality of liquid containers 63 to the ejection unit 21.

[0017] The device flow path 22 has a connection portion 24. The connection portion 24 is configured to be connected to the mounting unit 13. In one example, the connection portion 24 is configured to be connected to the mounting unit 13 located vertically below. For example, when the mounting unit 13 is located directly below the connection portion 24, the connection portion 24 can be connected to the mounting unit 13.

[0018] The connection portion 24 constitutes the upstream end of the device flow path 22. Specifically, the connection portion 24 constitutes the upstream end of the device flow path 22 in the direction in which liquid flows. The connection portion 24 is connected to the flow portion 23. The connection portion 24 is, for example, a joint.

[0019] As shown in FIG. 3, the connection portion 24 is positioned so as to be exposed from the device housing 14. In one example, the connection portion 24 is visibly exposed from below the device housing 14. Specifically, the connection portion 24 is visibly exposed from below the first housing portion 15. The connection portion 24 is fixed to the device housing 14.

[0020] The connection part 24 has a connector 25. The connector 25 holds the fluid part 23. The connector 25 is, for example, a resin case. The connector 25 extends in the vertical direction D2. The connector 25 has a connection surface 26. The connection surface 26 is the surface facing the mounting unit 13. In one example, the connection surface 26 faces downward.

[0021] The connector 25 has one or more pressure-receiving parts 27. In one example, the connector 25 has two pressure-receiving parts 27. The pressure-receiving part 27 is the part that receives pressure from the mounting unit 13 when the connection part 24 is removed from the mounting unit 13. The pressure-receiving part 27 protrudes from the connection surface 26. The pressure-receiving part 27 protrudes so as to approach the mounting unit 13. For example, the pressure-receiving part 27 protrudes downward from the connection surface 26.

[0022] One or more guide holes 28 may be open in the connector 25. In one example, two guide holes 28 are open in the connector 25. The guide holes 28 open in the connection surface 26. The guide holes 28 penetrate the connector 25. For example, the guide holes 28 penetrate the connector 25 in the vertical direction D2. The mounting unit 13 is inserted into the guide holes 28. Thereby, the mounting unit 13 is guided with respect to the liquid ejection device 12. When the mounting unit 13 is inserted into the guide holes 28, the position of the mounting unit 13 with respect to the connection part 24 is adjusted. Thus, it becomes easier for the connection part 24 to be connected to the mounting unit 13.

[0023] The connector 25 may have one or more insertion parts 29. In one example, the connector 25 has two insertion parts 29. The insertion part 29 is the part into which the mounting unit 13 is inserted. A part of the mounting unit 13 different from the part inserted into the guide hole 28 is inserted into the insertion part 29. The insertion part 29 protrudes from the connection surface 26. The insertion part 29 protrudes from the connection surface 26 so as to approach the mounting unit 13. For example, the insertion part 29 protrudes downward from the connection surface 26.

[0024] In the insertion portion 29, an insertion opening 30 is formed. The insertion opening 30 opens in a direction different from that of the guide hole 28. The insertion opening 30 opens in a direction parallel to the connection surface 26 in the insertion portion 29. In one example, the insertion opening 30 opens in the conveyance direction D3. The insertion opening 30 penetrates the insertion portion 29 in the conveyance direction D3. When the mounting unit 13 is inserted into the insertion opening 30, the possibility that the connection portion 24 comes off from the mounting unit 13 is reduced.

[0025] The connection portion 24 has one or more connection pipes 31. The connection portion 24 has the same number of connection pipes 31 as the fluid portion 23. In one example, the connection portion 24 has six connection pipes 31. The connection pipes 31 are attached to the connection body 25. The connection pipes 31 are positioned so as to protrude from the connection surface 26. In one example, the connection pipes 31 face downward. The six connection pipes 31 are positioned so as to avoid the pressure receiving portion 27.

[0026] The connection pipes 31 are connected to the fluid portion 23. When the connection pipes 31 are inserted into the mounting unit 13 or the mounting unit 13 is inserted into the connection pipes 31, the connection portion 24 is connected to the mounting unit 13. In one example, the connection pipes 31 are connected to the mounting unit 13 by being inserted into the mounting unit 13. When the connection pipes 31 are connected to the mounting unit 13, liquid flows through the connection pipes 31 into the fluid portion 23.

[0027] As shown in FIGS. 4, 5, 6, and 7, the connection portion 24 may be configured to move between a connection position P1 and a separation position P2. In one example, the connection portion 24 moves between the connection position P1 and the separation position P2 by moving in the vertical direction D2 and the opposite direction thereof.

[0028] The connection position P1 is a position where the connection portion 24 is connected to the mounting unit 13. The connection position P1 is a position close to the mounting unit 13. The connection portion 24 shown in FIGS. 4 and 6 is located at the connection position P1. The connection portion 24 is displaced from the separation position P2 to the connection position P1 by moving in the vertical direction D2.

[0029] The separation position P2 is the position where the connection part 24 separates from the mounting unit 13. The separation position P2 is the position where the connection part 24 moves away from the mounting unit 13. At the separation position P2, the connection part 24 is not connected to the mounting unit 13. The connection part 24 shown in FIGS. 5 and 7 is located at the separation position P2. The separation position P2 is a position above the connection position P1. The connection part 24 is displaced from the connection position P1 to the separation position P2 by moving in the direction opposite to the vertical direction D2.

[0030] The connection part 24 may have a contact member 32. The contact member 32 is a member that contacts the holding part 36 described later. Specifically, the contact member 32 contacts the holding part 36 when the connection part 24 is located at the separation position P2. The contact member 32 is attached to the connection body 25. In one example, the contact member 32 is configured to extend from the rear surface of the connection body 25.

[0031] The contact member 32 has an extension part 33. The extension part 33 is a part that extends along the connection body 25. The extension part 33 extends rearward from the rear surface of the connection body 25 and then extends upward along the rear surface of the connection body 25. The base end of the extension part 33 is attached to the connection body 25.

[0032] The contact member 32 has an operation part 34. The operation part 34 is a part configured to be grippable. The operation part 34 is, for example, gripped by the user. The operation part 34 extends from the extension part 33. Specifically, the operation part 34 extends rearward from the tip of the extension part 33. The user moves the connection part 24 between the connection position P1 and the separation position P2 while gripping the operation part 34.

[0033] The contact member 32 has a protrusion 35. The protrusion 35 is a part that is hooked on the holding part 36. The protrusion 35 protrudes from the extension part 33. Specifically, the protrusion 35 protrudes forward from the tip of the extension part 33. The protrusion 35 is located between the extension part 33 and the connection body 25.

[0034] The liquid ejection device 12 may include a holding portion 36. The holding portion 36 is configured to hold the connection portion 24. Specifically, the holding portion 36 holds the connection portion 24 located at the separation position P2. By the holding portion 36 holding the connection portion 24, the possibility of the connection portion 24 unexpectedly displacing from the separation position P2 to the connection position P1 is reduced. For example, when the mounting unit 13 is arranged in the arrangement space A1 with the connection portion 24 located at the connection position P1, there is a possibility that the connection portion 24 may collide with the mounting unit 13.

[0035] The holding portion 36 has a base member 37. The base member 37 is configured to surround the connection portion 24. The base member 37 surrounds the connection body 25. In one example, the base member 37 surrounds the connection body 25 regardless of the position of the connection body 25. Specifically, when the connection portion 24 is located at the connection position P1, the base member 37 surrounds the upper part of the connection body 25. When the connection portion 24 is located at the separation position P2, the base member 37 surrounds the lower part of the connection body 25. The connection portion 24 is displaced in a state where the connection body 25 is surrounded by the base member 37.

[0036] The base member 37 has a guide surface 38. The guide surface 38 is a surface facing the contact member 32. Specifically, the guide surface 38 faces the extension portion 33 when the connection portion 24 is located at the separation position P2. In one example, the guide surface 38 faces rearward.

[0037] The holding portion 36 has a holding member 39. The holding member 39 is a member that contacts the contact member 32. The holding member 39 extends from the base member 37. The holding member 39 extends from the upper end of the base member 37. The holding member 39 extends rearward from the guide surface 38. The holding member 39 contacts the protrusion 35. Specifically, the protrusion 35 is hooked on the holding member 39. Thereby, the holding member 39 holds the contact member 32. As a result, the holding portion 36 holds the connection portion 24.

[0038] The holding part 36 has one or more guide members 40. In one example, the holding part 36 has two guide members 40. The guide member 40 is a member that guides the contact member 32. Specifically, the guide member 40 guides the extending part 33. The guide member 40 extends from the base member 37. The guide member 40 extends rearward from the guide surface 38. The two guide members 40 are positioned so as to sandwich the contact member 32 in the scanning direction D1.

[0039] The guide member 40 has a first guide piece 41 and a second guide piece 42. The first guide piece 41 extends perpendicularly from the guide surface 38. The two first guide pieces 41 are positioned so as to sandwich the extending part 33 in the scanning direction D1. The second guide piece 42 extends from the first guide piece 41. The second guide piece 42 extends perpendicularly from the tip of the first guide piece 41. The two second guide pieces 42 extend so as to approach each other.

[0040] When the connecting part 24 is displaced from the connection position P1 to the separation position P2, the extending part 33 is inserted between the base member 37 and the second guide piece 42. At this time, the guide member 40 guides the contact member 32. When the connecting part 24 is located at the separation position P2, the protrusion 35 is caught by the holding member 39. Thereby, the holding part 36 holds the connecting part 24 at the separation position P2. When the protrusion 35 is disengaged from the holding member 39 by pulling the operation part 34, the connecting part 24 can be displaced from the separation position P2 to the connection position P1.

[0041] The liquid ejection device 12 includes a receiving part 43. The receiving part 43 is configured to receive liquid. The receiving part 43 receives the liquid dripping from the connecting part 24. When the connecting part 24 is removed from the mounting unit 13, there is a possibility that liquid may drip from the connecting part 24. Specifically, there is a possibility that liquid may drip from the connecting pipe 31. In particular, since the connecting pipe 31 faces downward, it is easy for liquid to drip from the connecting pipe 31. By the receiving part 43 receiving the liquid dripping from the connecting pipe 31, the possibility of the periphery of the liquid ejection device 12 being soiled is reduced.

[0042] The receiving portion 43 is located vertically below the connecting portion 24. That is, the receiving portion 43 is located directly below the connecting portion 24. Thereby, the receiving portion 43 receives the liquid from the connecting portion 24. The receiving portion 43 being located vertically below the connecting portion 24 may impede the connection between the connecting portion 24 and the mounting unit 13. This is because the connecting pipe 31 faces downward. For example, when the connecting pipe 31 faces rearward, the connecting portion 24 can be connected to the mounting unit 13 without being impeded by the receiving portion 43 even if the receiving portion 43 is located below the connecting portion 24.

[0043] The receiving portion 43 is configured to move between a receiving position Q1 and a retracted position Q2. In one example, the receiving portion 43 moves between the receiving position Q1 and the retracted position Q2 by moving in the conveying direction D3 and the opposite direction thereof. The receiving portion 43 may be displaced by moving in the scanning direction D1 or may be displaced by rotating.

[0044] The receiving position Q1 is a position where the receiving portion 43 receives the liquid from the connecting portion 24. The receiving position Q1 is a position vertically below the connecting portion 24. The receiving position Q1 is a position directly below the connecting portion 24. The receiving position Q1 is a position that overlaps the connecting portion 24 when viewed in the vertical direction D2. The receiving portion 43 shown in FIGS. 5 and 7 is located at the receiving position Q1. When the receiving portion 43 is located at the receiving position Q1, it is located on the movement locus of the connecting portion 24 that moves between the connection position P1 and the separation position P2. Therefore, when the connecting portion 24 is displaced from the separation position P2 to the connection position P1 while the receiving portion 43 is located at the receiving position Q1, the receiving portion 43 interferes with the connecting portion 24.

[0045] The retracted position Q2 is the position where the receiving portion 43 retracts from the connecting portion 24. The retracted position Q2 is the position where it retracts from directly below the connecting portion 24 in the vertical direction. The retracted position Q2 is the position where the receiving portion 43 does not receive liquid from the connecting portion 24. The retracted position Q2 is the position where the receiving portion 43 does not overlap the connecting portion 24 when viewed from the vertical direction D2. The receiving portion 43 shown in FIGS. 4 and 6 is located at the retracted position Q2. When the receiving portion 43 is located at the retracted position Q2, it is located outside the movement locus of the connecting portion 24 that moves between the connection position P1 and the separation position P2. Therefore, when the receiving portion 43 is located at the retracted position Q2, it does not interfere with the connecting portion 24. When the receiving portion 43 is located at the retracted position Q2, it does not obstruct the connection between the connecting portion 24 and the mounting unit 13.

[0046] The receiving portion 43 has a receiving part 44. The receiving part 44 is, for example, a tray. The receiving part 44 is located directly below the connecting portion 24 in the vertical direction at the receiving position Q1. The receiving part 44 has a receiving surface 45. The receiving surface 45 is the surface that receives liquid from the connecting portion 24. The receiving surface 45 faces the connecting portion 24 at the receiving position Q1. In one example, the receiving surface 45 faces the connecting surface 26 at the receiving position Q1. The receiving portion 43 may have an absorbent material. The absorbent material may be disposed on the receiving surface 45.

[0047] The receiving part 44 has one or more bosses 46. In one example, the receiving part 44 has four bosses 46. The bosses 46 protrude from the side surface of the receiving part 44. Of the four bosses 46, two bosses 46 protrude from the receiving part 44 in the scanning direction D1. Of the four bosses 46, the other two bosses 46 protrude from the receiving part 44 in the direction opposite to the scanning direction D1. The four bosses 46 are, for example, symmetrically located in the scanning direction D1.

[0048] The boss 46 fits into a housing portion 48 described later. When the boss 46 fits into the housing portion 48, the receiving part 44 is held at the receiving position Q1 or the receiving part 44 is held at the retracted position Q2.

[0049] The receiving portion 43 has a gripping portion 47. The gripping portion 47 is configured to be grippable. The gripping portion 47 is, for example, gripped by a user. The gripping portion 47 extends from the receiving portion 44. Specifically, the gripping portion 47 extends rearward from the tip of the receiving portion 44. The user moves the receiving portion 43 between the receiving position Q1 and the retracted position Q2 while gripping the gripping portion 47.

[0050] The liquid ejection device 12 includes a housing portion 48. The housing portion 48 is configured to house the receiving portion 43. The housing portion 48 is, for example, configured to be insertable and removable with respect to the receiving portion 43. The housing portion 48 is positioned so as not to overlap with the connecting portion 24 when viewed from the vertical direction D2. The receiving portion 43 is displaced to the receiving position Q1 by being pulled out from the housing portion 48. The receiving position Q1 is a position where the receiving portion 43 protrudes from the housing portion 48. The receiving portion 43 is displaced to the retracted position Q2 by being pushed into the housing portion 48. The retracted position Q2 is a position where the receiving portion 43 is housed in the housing portion 48.

[0051] The housing portion 48 has a housing frame 49. The housing frame 49 is a frame that houses the receiving portion 43 positioned at the retracted position Q2. Specifically, the housing frame 49 houses the receiving portion 44. In a state where the receiving portion 44 is housed in the housing frame 49, the gripping portion 47 protrudes from the housing frame 49. Therefore, it is easy for the user to grip the gripping portion 47.

[0052] The liquid ejection device 12 may include a guide frame 50. The guide frame 50 is a frame that guides the receiving portion 43. Specifically, the guide frame 50 guides the receiving portion 43 protruding from the housing portion 48. A guide slit 51 is formed in the guide frame 50. The edge of the receiving portion 44 is inserted into the guide slit 51. The receiving portion 44 moves along the guide slit 51. Thereby, it is easy for the receiving portion 44 to move between the receiving position Q1 and the retracted position Q2.

[0053] The accommodating portion 48 and the guide frame 50 may have one or more accommodation openings 52. In one example, a plurality of accommodation openings 52 open in the accommodating portion 48. A plurality of accommodation openings 52 open in the guide frame 50. The accommodation opening 52 is an opening into which the boss 46 is inserted. By inserting the boss 46 into the accommodation opening 52, the receiving portion 43 is held. Thereby, the posture of the receiving portion 43 is stabilized.

[0054] The accommodation opening 52 opens in the accommodation frame 49. In one example, four accommodation openings 52 open in the accommodation frame 49. The four accommodation openings 52 are positioned so as to correspond to the four bosses 46 when the receiving portion 43 is located at the retracted position Q2. Therefore, by fitting the four bosses 46 into the four accommodation openings 52 that open in the accommodation frame 49 respectively, the receiving portion 43 is held at the retracted position Q2.

[0055] In one example, two accommodation openings 52 open in the guide frame 50. The two accommodation openings 52 are positioned so as to correspond to the two bosses 46 when the receiving portion 43 is located at the receiving position Q1. When the receiving portion 43 is located at the receiving position Q1, the four bosses 46 fit into the two accommodation openings 52 that open in the accommodation frame 49 and the two accommodation openings 52 that open in the guide frame 50. Thereby, the receiving portion 43 is held at the receiving position Q1.

[0056] <Mounting unit> Next, the mounting unit 13 will be described. As shown in FIG. 1, the mounting unit 13 is connected to the liquid ejection device 12. The mounting unit 13 is positioned adjacent to the liquid ejection device 12. Specifically, the mounting unit 13 is positioned adjacent to the connection portion 24. In one example, the mounting unit 13 is positioned below the connection portion 24.

[0057] The mounting unit 13 includes a unit housing 61. The mounting unit 13 is connected to the liquid ejection device 12 by being positioned in the placement space A1. When the mounting unit 13 is connected to the liquid ejection device 12, it is positioned such that the surface of the unit housing 61 is flush with the surface of the device housing 14. For example, the front surface of the unit housing 61 is flush with the front surface of the device housing 14. The side surface of the unit housing 61 is flush with the side surface of the device housing 14. The rear surface of the unit housing 61 is flush with the rear surface of the device housing 14. Thereby, the mounting unit 13 fits into the foot space of the liquid ejection device 12.

[0058] The mounting unit 13 includes one or more mountings 62. In one example, the mounting unit 13 includes a plurality of mountings 62. The mountings 62 are mounted on the unit housing 61. The plurality of mountings 62 are mounted on the unit housing 61 so as to be stacked in the vertical direction D2. The mounting 62 is, for example, a cassette.

[0059] A liquid container 63 is mounted on the mounting 62. The mounting 62 houses the liquid container 63. The liquid container 63 stores liquid. The liquid container 63 is, for example, an ink pack. The liquid container 63 is detachable from the mounting 62. When the mounting 62 is mounted on the unit housing 61, the liquid container 63 is mounted on the mounting unit 13. Thereby, the mounting unit 13 can supply liquid from the liquid container 63. The plurality of liquid containers 63 may each store the same type of liquid or may each store different types of liquid.

[0060] As shown in FIG. 2, the mounting unit 13 includes a unit flow path 64. The unit flow path 64 is configured such that liquid can flow through it. The unit flow path 64 is connected to the liquid container 63. Specifically, the unit flow path 64 is connected to the liquid container 63 through the mounting 62. The unit flow path 64 is connected to the mounting 62 and the liquid ejection device 12. The unit flow path 64 is connected to the connection portion 24. Through the unit flow path 64, liquid is supplied from the liquid container 63 to the ejection portion 21.

[0061] The unit flow path 64 has one or more supply portions 65. The supply portion 65 is a portion through which the liquid flows. The supply portion 65 is connected to the mounting body 62. The supply portion 65 extends within the unit housing 61. The supply portion 65 includes, for example, a tube. The unit flow path 64 has the same number of supply portions 65 as the liquid containers 63. Thereby, the unit flow path 64 can supply the liquid from the plurality of liquid containers 63 to the discharge portion 21.

[0062] The unit flow path 64 has a connecting portion 66. The connecting portion 66 is configured to be connected to the liquid discharge device 12. The connecting portion 66 is connected to the connecting portion 24. The connecting portion 66 constitutes the downstream end of the unit flow path 64. Specifically, the connecting portion 66 constitutes the downstream end of the unit flow path 64 in the direction in which the liquid flows. The connecting portion 66 is connected to the supply portion 65. The connecting portion 66 is, for example, a joint.

[0063] As shown in FIG. 8, the connecting portion 66 is positioned so as to be exposed from the unit housing 61. In one example, the connecting portion 66 is visibly exposed from above the unit housing 61. The connecting portion 66 faces the connecting portion 24. In one example, the connecting portion 66 faces the connecting portion 24 vertically when the mounting unit 13 is disposed in the arrangement space A1. The connecting portion 66 is fixed to the unit housing 61.

[0064] As shown in FIGS. 8, 9, and 10, the connecting portion 66 has a connecting body 67. The connecting body 67 holds the supply portion 65. The connecting body 67 is, for example, a resin case. The connecting body 67 contacts the connecting portion 24 by being connected to the connecting portion 24. Specifically, the connecting body 67 contacts the connecting body 25.

[0065] The connecting body 67 has a connecting surface 68. The connecting surface 68 is a surface facing the liquid discharge device 12. The connecting surface 68 faces the connecting portion 24. Specifically, the connecting surface 68 faces the connecting surface 26 when the connecting portion 66 is connected to the connecting portion 24. In one example, the connecting surface 68 faces upward.

[0066] The connecting body 67 may have one or more guide pins 69. In one example, the connecting body 67 has two guide pins 69. The guide pins 69 extend vertically from the connecting surface 68. For example, the guide pins 69 extend upward. The guide pins 69 are inserted into the guide holes 28. Specifically, the guide pins 69 are inserted into the guide holes 28 when the connecting portion 24 is displaced to the connection position P1.

[0067] The connecting portion 66 has one or more connecting pipes 70. The connecting portion 66 has the same number of connecting pipes 70 as the supply portion 65. In one example, the connecting portion 66 has six connecting pipes 70. The connecting pipes 70 are attached to the connecting body 67. The connecting pipes 70 are positioned so as to protrude from the connecting surface 68. In one example, the connecting pipes 70 face upward.

[0068] The connecting pipes 70 are connected to the supply portion 65. The connecting portion 66 is connected to the connecting portion 24 when the connecting pipes 70 are inserted into the connecting pipes 31 or the connecting pipes 31 are inserted into the connecting pipes 70. In one example, the connecting pipes 31 are inserted into the connecting pipes 70. The connecting pipes 70 have, for example, a sealing rubber for sealing the connecting pipes 31. Therefore, when the connecting portion 24 is connected to the connecting portion 66, the connecting pipes 31 are sealed with respect to the connecting pipes 70. When the connecting portion 66 is connected to the connecting portion 24, the liquid flows through the connecting pipes 70 to the connecting portion 24.

[0069] As shown in FIGS. 10, 11, and 12, the connecting portion 66 has a locking member 71. The locking member 71 is a member that maintains the connecting portion 24 and the connecting portion 66 in a connected state. The locking member 71 is attached to the connecting body 67. The locking member 71 is attached to the connecting body 67 so as to be displaceable with respect to the connecting body 67. The locking member 71 is configured to move in one direction with respect to the connecting body 67.

[0070] The locking member 71 is configured to move between a locking position R1 and a release position R2. In one example, the locking member 71 moves between the locking position R1 and the release position R2 by moving in the conveying direction D3 and the opposite direction thereof. The locking member 71 may be displaced by moving in the scanning direction D1.

[0071] The lock position R1 is a position where the connection between the connecting portion 24 and the coupling portion 66 is locked. The locking member 71 is displaced to the lock position R1 by moving in the conveying direction D3. The release position R2 is a position where the connection between the connecting portion 24 and the coupling portion 66 is released. The locking member 71 is displaced to the release position R2 by moving in the direction opposite to the conveying direction D3. The locking member 71 shown in FIGS. 10 and 11 is located at the release position R2. The locking member 71 shown in FIG. 12 is located at the lock position R1.

[0072] The locking member 71 has a lock cover 72. The lock cover 72 is configured to be grippable. For example, the lock cover 72 is gripped by a user. The user displaces the locking member 71 while gripping the lock cover 72.

[0073] The lock cover 72 is positioned to cover a lever 75, which will be described later, at the lock position R1. Therefore, when the lock cover 72 is located at the lock position R1, it is difficult for the user to access the lever 75. When the lock cover 72 is displaced to the release position R2, the lock cover 72 moves away from the lever 75. As a result, it becomes easier for the user to access the lever 75. By covering the lever 75, the lock cover 72 can guide the user to operate the lever 75 after operating the locking member 71.

[0074] The locking member 71 has one or more lock pins 73. The locking member 71 has the same number of lock pins 73 as the insertion portion 29. In one example, the locking member 71 has two lock pins 73. The lock pins 73 extend from the lock cover 72. The lock pins 73 extend in one direction. The lock pins 73 extend in the direction in which the locking member 71 moves. In one example, the lock pins 73 extend in the conveying direction D3. The lock pins 73 are inserted into the connecting body 67.

[0075] As shown in FIG. 13, the lock pin 73 is inserted into the insertion portion 29. Specifically, the lock pin 73 is inserted into the insertion port 30. The lock pin 73 is positioned coaxially with the insertion port 30 when the connecting portion 66 is connected to the connection portion 24. In other words, the insertion portion 29 is positioned on the extension line of the lock pin 73 when the connection portion 24 is connected to the connecting portion 66. Therefore, the lock pin 73 is inserted into the insertion port 30 by moving in the conveyance direction D3 in a state where the connecting portion 66 is connected to the connection portion 24. When the lock pin 73 is inserted into the insertion port 30, the connection between the connection portion 24 and the connecting portion 66 is locked.

[0076] When the lock member 71 is located at the lock position R1 before the connection portion 24 is connected to the connecting portion 66, the lock pin 73 inhibits the connection between the connection portion 24 and the connecting portion 66. The lock pin 73 interferes with the insertion portion 29 when the connection portion 24 is displaced to the connection position P1. Therefore, the connection portion 24 cannot be displaced to the connection position P1. The lock pin 73 can guide the user to displace the connection portion 24 to the connection position P1 in a state where the lock member 71 is located at the release position R2 by interfering with the insertion portion 29.

[0077] The connecting portion 66 has a shaft 74. The shaft 74 is attached to the connecting body 67. The shaft 74 extends, for example, in the scanning direction D1. The shaft 74 extends in the scanning direction D1 between the connecting pipe 70 and the guide pin 69, for example, in the conveyance direction D3. The shaft 74 supports the lever 75.

[0078] As shown in FIGS. 14 and 15, the connecting portion 66 has a lever 75. The lever 75 is attached to the connecting body 67. Specifically, the lever 75 is attached to the shaft 74. The lever 75 is attached to the connecting body 67 by being attached to the shaft 74.

[0079] The lever 75 rotates about the axis 74. The lever 75 is sandwiched between the connection part 24 and the connecting body 67 when the connection part 24 is connected to the connecting part 66. By rotating, the lever 75 contacts the connection part 24 so as to separate the connection part 24 and the connecting body 67 from each other. Specifically, by rotating, the lever 75 contacts the connection body 25 so as to separate the connection body 25 and the connecting body 67 from each other. In one example, by rotating, the lever 75 applies a force to displace the connection body 25 upward so as to separate the connection body 25 from the connecting body 67. When the connection body 25 and the connecting body 67 are separated from each other, the connection between the connection part 24 and the connecting part 66 is released.

[0080] The lever 75 has a first end portion 76 and a second end portion 77. The first end portion 76 is located between the connection part 24 and the connecting body 67. Specifically, the first end portion 76 is located between the connection body 25 and the connecting body 67. The first end portion 76 is a portion sandwiched between the connection part 24 and the connecting body 67. Specifically, the first end portion 76 is a portion sandwiched between the connection body 25 and the connecting body 67. In one example, the first end portion 76 contacts the pressure-receiving portion 27. The first end portion 76 extends so as to avoid the connecting pipe 70. The second end portion 77 is a portion protruding from between the connection part 24 and the connecting body 67. The second end portion 77 is a portion not sandwiched between the connection body 25 and the connecting body 67. Therefore, the second end portion 77 is easily gripped by the user. The second end portion 77 is covered by a lock cover 72 located at the lock position R1.

[0081] The user rotates the lever 75 while gripping the second end portion 77. In one example, the user presses down the second end portion 77. As a result, the first end portion 76 is lifted. The first end portion 76 pushes up the pressure-receiving portion 27 upward. The lever 75 pushes up the connection part 24 so as to separate the connection part 24 from the connecting part 66. As a result, the connection between the connection part 24 and the connecting part 66 is released.

[0082] When disconnecting the connection between the connection part 24 and the coupling part 66, the connection part 24 may be difficult to be detached from the coupling part 66. This is because, for example, the sealing rubber of the connecting pipe 70 may adhere to the connecting pipe 31. In this regard, the lever 75 makes it easy to detach the connection part 24 from the coupling part 66.

[0083] As shown in FIG. 10, the mounting unit 13 may include a detection unit 80. The detection unit 80 is configured to detect the connection between the connection part 24 and the coupling part 66. The detection unit 80 is, for example, a contact sensor. The detection unit 80 is attached to the connecting body 67. When the connection part 24 and the coupling part 66 are connected, the detection unit 80 is pressed against the connection body 25. Thereby, the detection unit 80 detects the connection between the connection part 24 and the coupling part 66. The detection unit 80 may transmit a signal indicating that the connection part 24 and the coupling part 66 are connected to the liquid ejection device 12 by detecting the connection between the connection part 24 and the coupling part 66. The detection unit 80 may light a display indicating that the connection part 24 and the coupling part 66 are connected by detecting the connection between the connection part 24 and the coupling part 66.

[0084] <Actions and effects of the embodiment> Next, the actions and effects of the above embodiment will be described. (1) The receiving part 43 is located vertically below the connection part 24. When the mounting unit 13 is removed from the connection part 24, there is a possibility that liquid may drip from the connection part 24. According to the above configuration, the receiving part 43 receives the liquid dripping from the connection part 24. Thereby, the possibility of soiling the periphery of the liquid ejection device 12 is reduced.

[0085] (2) The receiving part 43 is configured to move between the receiving position Q1 and the retracted position Q2. According to the above configuration, when the receiving part 43 is displaced to the retracted position Q2, it becomes easier for the connection part 24 to be connected to the mounting unit 13.

[0086] (3) The housing part 48 is positioned so as not to overlap with the connection part 24 when viewed from the vertical direction D2. The receiving position Q1 is the position where the receiving part 43 protrudes from the housing part 48. The retracted position Q2 is the position where the receiving part 43 is housed in the housing part 48. According to the above configuration, when the receiving part 43 is housed in the housing part 48, the risk that the user accidentally touches the liquid received by the receiving part 43 is reduced.

[0087] (4) The connection part 24 is configured to be connected to the mounting unit 13 positioned vertically below. When the receiving part 43 is in the retracted position Q2, the receiving part 43 retracts from directly below the connection part 24, so it does not obstruct the connection between the mounting unit 13 and the connection part 24. When the receiving part 43 is in the receiving position Q1, since it is positioned directly below the connection part 24, it obstructs the connection between the mounting unit 13 and the connection part 24. According to the above configuration, when the mounting unit 13 and the connection part 24 are connected, the user can be prompted to displace the receiving part 43 to the retracted position Q2.

[0088] (5) The receiving part 43 has a grippable gripping portion 47. According to the above configuration, it is easy for the user to move the receiving part 43. (6) The holding part 36 holds the connection part 24 positioned at the separation position P2. According to the above configuration, the risk that the connection part 24 is unexpectedly displaced from the separation position P2 to the connection position P1 due to vibration, impact, etc. is reduced. The risk that the connection part 24 collides with the mounting unit 13 is reduced.

[0089] (7) The lever 75 contacts the connection part 24 so as to separate the connection part 24 and the connecting body 67 from each other by rotating. According to the above configuration, the user can easily release the connection between the connection part 24 and the connecting part 66 by rotating the lever 75.

[0090] (8) The first end portion 76 is positioned between the connection part 24 and the connecting body 67. The second end portion 77 protrudes from between the connection part 24 and the connecting body 67. According to the above configuration, it is easy for the user to grip the second end portion 77. Therefore, it is easy for the user to release the connection between the connection part 24 and the connecting part 66.

[0091] (9) The connection part 24 has a connector 25 in which an insertion port 30 into which the lock pin 73 is inserted is open. According to the above configuration, when the lock pin 73 is inserted into the insertion port 30, the connection part 24 and the connecting part 66 are maintained in a connected state. Thereby, the possibility that the connection between the connection part 24 and the connecting part 66 is unexpectedly released is reduced.

[0092] (10) The liquid discharge system 11 includes a detection part 80 that detects the connection between the connection part 24 and the connecting part 66. According to the above configuration, the possibility that a defect occurs in the connection between the connection part 24 and the connecting part 66 is reduced.

[0093] <Modification example> The above embodiment can be implemented with the following modifications. The above embodiment and the following modification examples can be implemented in combination with each other within a technically non - conflicting range.

[0094] · The connection part 24 may have a locking member 71. In this case, the locking member 71 is attached to the connector 25. In this modification example, the connecting body 67 has an insertion portion 29. The locking member 71 is displaced between a locking position R1 and a release position R2 by moving with respect to the connector 25.

[0095] · The connection part 24 may have a lever 75. In this case, the lever 75 is attached to the connector 25. In this modification example, the connecting body 67 has a pressure - receiving portion 27. The lever 75 presses down the connecting part 66 with respect to the connection part 24 by rotating.

[0096] · The lever 75 may release the connection between the connection part 24 and the connecting part 66 by rotating so that the second end portion 77 is lifted. For example, as the second end portion 77 of the lever 75 is lifted, the lever 75 may push up the connection part 24 with respect to the connecting part 66.

[0097] · Instead of the connecting portion 24 being displaced between the connection position P1 and the separation position P2, the connecting portion 66 may be configured to be displaced between the connection position P1 and the separation position P2. For example, the connecting portion 66 may be configured to move in the vertical direction D2 and the opposite direction thereof. In this case, the mounting unit 13 may include the holding portion 36.

[0098] · The detection unit 80 is not limited to being provided in the mounting unit 13, and may be provided in the liquid ejection device 12, for example. In this case, the detection unit 80 is attached to the connector 25. The detection unit 80 detects the connection between the connecting portion 24 and the connecting portion 66 by being pressed against the connecting body 67.

[0099] · The liquid ejected by the ejection unit 21 is not limited to ink, and may be, for example, a liquid in which particles of a functional material are dispersed or mixed in a liquid. For example, the ejection unit 21 may eject a liquid containing a material such as an electrode material or a pixel material used in the manufacture of a liquid crystal display, an electroluminescence display, and a surface emission display in a dispersed or dissolved form.

[0100] <Technical idea> The technical idea and its operational effects grasped from the above-described embodiments and modified examples will be described below.

[0101] (A) The liquid ejection device is a liquid ejection device connected to a mounting unit on which a liquid container for storing a liquid is mounted, and includes an ejection unit that ejects a liquid, a device flow path that extends from the ejection unit, and a receiving unit that receives the liquid. The device flow path has a connecting portion connected to the mounting unit, and the receiving unit is located vertically below the connecting portion. When the mounting unit is removed from the connecting portion, there is a risk that the liquid will drip from the connecting portion. According to the above configuration, the receiving unit receives the liquid dripping from the connecting portion. Thereby, the risk of soiling the periphery of the liquid ejection device is reduced.

[0102] (B) In the liquid ejection device, the receiving portion may be configured to move between a receiving position vertically below the connecting portion and a retracted position retracting from vertically below the connecting portion. According to the above configuration, when the receiving portion is displaced to the retracted position, it becomes easier for the connecting portion to connect with the mounting unit.

[0103] (C) The liquid ejection device includes a housing portion that houses the receiving portion. The housing portion is positioned so as not to overlap the connecting portion when viewed in the vertical direction. The receiving position is a position where the receiving portion protrudes from the housing portion, and the retracted position may be a position where the receiving portion is housed in the housing portion. According to the above configuration, when the receiving portion is housed in the housing portion, the risk that the user accidentally touches the liquid received by the receiving portion is reduced.

[0104] (D) In the liquid ejection device, the connecting portion may be configured to be connected to the mounting unit positioned vertically below. According to the above configuration, when the receiving portion is in the retracted position, it does not hinder the connection between the mounting unit and the connecting portion. When the receiving portion is in the receiving position, it hinders the connection between the mounting unit and the connecting portion. Therefore, when the mounting unit and the connecting portion are connected, the user can be prompted to displace the receiving portion to the retracted position.

[0105] (E) In the liquid ejection device, the receiving portion may have a grippable gripping portion. According to the above configuration, it is easy for the user to move the receiving portion. (F) The liquid ejection device includes a holding portion that holds the connecting portion. The connecting portion is configured to move between a connecting position connected to the mounting unit and a separating position away from the mounting unit. The holding portion may hold the connecting portion in the separating position. According to the above configuration, the risk that the connecting portion is unexpectedly displaced from the separating position to the connecting position due to vibration, impact, etc. is reduced. The risk that the connecting portion collides with the mounting unit is reduced.

[0106] (G) The liquid ejection system includes the above-described liquid ejection device and the mounting unit. According to the above configuration, the same effects as those of the above-described liquid ejection device can be obtained. (H) In the above liquid ejection system, the mounting unit includes a mounting body on which the liquid container is mounted, and a unit flow path extending from the liquid container. The unit flow path has a connecting portion connected to the connecting portion. The connecting portion has a connecting body that contacts the connecting portion by being connected to the connecting portion, and a lever attached to the connecting body. The lever may contact the connecting portion so as to separate the connecting portion and the connecting body from each other by rotating. According to the above configuration, the user can easily release the connection between the connecting portion and the connecting portion by rotating the lever.

[0107] (I) In the above liquid ejection system, the lever has a first end portion and a second end portion. The first end portion is located between the connecting portion and the connecting body, and the second end portion may protrude from between the connecting portion and the connecting body. According to the above configuration, it is easy for the user to grip the second end portion. Therefore, it is easy for the user to release the connection between the connecting portion and the connecting portion.

[0108] (J) In the above liquid ejection system, the connecting portion is attached to the connecting body and has a locking member that maintains the connecting portion and the connecting portion in a connected state. The locking member has a locking pin extending in one direction and is configured to move in the one direction with respect to the connecting body. The connecting portion may have a connecting body in which an insertion port into which the locking pin is inserted is opened. According to the above configuration, when the locking pin is inserted into the insertion port, the connecting portion and the connecting portion are maintained in a connected state. Thereby, the possibility that the connection between the connecting portion and the connecting portion is unexpectedly released is reduced.

[0109] (K) The above liquid ejection system may include a detection unit that detects the connection between the connection portion and the connection portion. According to the above configuration, the possibility that a defect occurs in the connection between the connection portion and the connection portion is reduced.

Explanation of Reference Numerals

[0110] 11…Liquid ejection system, 12…Liquid ejection device, 13…Mounting unit, 14…Device housing, 15…First housing part, 16…Second housing part, 17…Central housing part, 18…Legs, 19…First leg part, 20…Second leg part, 21…Ejection part, 22…Device flow path, 23…Fluid part, 24…Connection part, 25…Connector, 26…Connection surface, 27…Pressure receiving part, 28…Guide hole, 29…Insertion part, 30…Insertion port, 31…Connection pipe, 32…Contact member, 33…Extension part, 34…Operation part, 35…Protrusion, 36…Holding part, 37…Base member, 38…Guide surface, 39…Holding member, 40…Guide member, 41…First guide piece, 42…Second guide piece, 43…Receiving part, 44…Receiving portion, 45…Receiving surface, 46…Boss, 47…Gripping part, 48…Storage part, 49…Storage frame, 50…Guide frame, 51…Guide slit, 52…Storage opening, 61…Unit housing, 62…Mounting body, 63…Liquid container, 64…Unit flow path, 65…Supply part, 66…Link part, 67…Link body, 68…Link surface, 69…Guide pin, 70…Link pipe, 71…Lock member, 72…Lock cover, 73…Lock pin, 74…Axis, 75…Lever, 76…First end part, 77…Second end part, 80…Detection part, A1…Arrangement space, D1…Scanning direction, D2…Vertical direction, D3…Conveying direction, M1…Medium, P1…Connection position, P2…Separation position, Q1…Receiving position, Q2…Retreat position, R1…Lock position, R2…Release position.

Claims

1. A liquid ejection device connected to a mounting unit on which a liquid container for containing a liquid is mounted, comprising: a discharge unit for discharging the liquid; a device flow path extending from the discharge unit; a receiving unit for receiving the liquid, wherein the device flow path has a connection portion connected to the mounting unit, and the receiving unit is located vertically below the connection portion.

2. The liquid ejection device according to claim 1, wherein the receiving unit is configured to move between a receiving position vertically below the connection portion and a retracted position retracted from vertically below the connection portion.

3. The liquid ejection device according to claim 2, further comprising a housing unit for housing the receiving unit, wherein the housing unit is positioned so as not to overlap the connection portion when viewed in the vertical direction, the receiving position is a position where the receiving unit protrudes from the housing unit, and the retracted position is a position where the receiving unit is housed in the housing unit.

4. The liquid ejection device according to claim 2, wherein the connection portion is configured to be connected to the mounting unit located vertically below.

5. The liquid ejection device according to claim 2, wherein the receiving unit has a grip portion that can be gripped.

6. The liquid ejection device according to claim 1, further comprising a holding unit for holding the connection portion, wherein the connection portion is configured to move between a connection position connected to the mounting unit and a separation position away from the mounting unit, and the holding unit holds the connection portion located at the separation position.

7. A liquid ejection system comprising the liquid ejection device according to any one of claims 1 to 6 and the mounting unit.

8. The mounting unit includes a mounting body on which the liquid container is mounted, and a unit flow path extending from the liquid container, wherein the unit flow path has a connecting portion connected to the connection portion, and the connecting portion includes a connecting body that contacts the connection portion by being connected to the connection portion, and a lever attached to the connecting body, and the liquid ejection system according to claim 7, wherein the lever rotates to contact the connection portion so as to separate the connection portion and the connecting body from each other.

9. The lever has a first end portion and a second end portion, and the first end portion is located between the connection portion and the connecting body. The liquid discharge system according to claim 8, wherein the second end portion protrudes from between the connection portion and the connector.

10. The connection portion is attached to the connector and has a locking member that maintains the connection portion and the connector in a connected state. The locking member has a locking pin extending in one direction and is configured to move in the one direction with respect to the connector. The liquid discharge system according to claim 8, wherein the connection portion has a connector in which an insertion port into which the locking pin is inserted is open.

11. The liquid discharge system according to claim 8, further comprising a detection unit that detects connection of the connection portion and the connector.

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