Liquid discharge device

Abstract

To properly maintain a position of a liquid supply device with respect to a body while securing conduction between the liquid supply device and the body.SOLUTION: A liquid discharge device 1 includes: a body 9 on which a liquid discharge section 5 is mounted; a liquid supply device 100 which is configured to be movable independently of the body 9 and supplies liquid to the liquid discharge section 5 through a liquid supply passage 12; a body side engaging section 110 which is engaged with the liquid supply device 100; and a liquid supply device side engaging section 110B which is engaged with the body 9. One of the body side engaging section 110A and the liquid supply device side engaging section 110B has an insertion section 111 which is made of a conductive member and is movable in a vertical direction, and the other has a receiving section 112 which receives the insertion section 111. The receiving section 112 is provided with a contact member 112A made of a conductive member and can receive the insertion section 111 in a state that the contact member 112A and the insertion section 111 contact with each other.SELECTED DRAWING: Figure 5

Description

Technical Field

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

Background Art

[0002] Conventionally, various liquid ejection devices have been used. Among them, there is a liquid ejection device in which a main body that ejects liquid and a liquid supply device that supplies liquid to the main body are configured to be movable. For example, Patent Document 1 discloses a printer system that includes a printer that ejects ink for printing and a liquid supply device that supplies ink to the printer, wherein the printer and the liquid supply device are connected by a plurality of tubes and are configured to be movable.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a conventional liquid ejection device in which a main body and a liquid supply device are configured to be movable, such as the printer system of Patent Document 1, for example, when the liquid ejection device is moved, there is a risk that the main body and the liquid supply device are too far apart and a liquid supply path such as a tube is damaged, or that the main body and the liquid supply device are too close and collide. In addition, there may be a case where it is necessary to ensure electrical conduction between the liquid supply device and the main body.

Means for Solving the Problems

[0005] The liquid ejection device of the present invention for solving the above problems includes a liquid ejection unit that ejects liquid, a main body on which the liquid ejection unit is mounted, a liquid supply device that is configured to be movable independently of the main body and supplies the liquid to the liquid ejection unit via a liquid supply path, a main body side engaging portion provided on the main body and engaging with the liquid supply device, and a liquid supply device side engaging portion provided on the liquid supply device and engaging with the main body. One of the main body side engaging portion or the liquid supply device side engaging portion is made of a conductive member and has an insertion portion that can move in the vertical direction, and the other of the main body side engaging portion or the liquid supply device side engaging portion has a receiving portion that receives the insertion portion. The receiving portion is provided with a contact member made of a conductive member, and is configured to be able to receive the insertion portion in a state where the contact member and the insertion portion are in contact with each other.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0007] First, the present invention will be briefly described. The liquid ejection device according to the first aspect of the present invention for solving the above problems includes a printing unit that prints on a medium, and in the axial direction of a paper tube around which the medium is wound, the paper tube liquid ejection device includes a liquid ejection unit that ejects liquid, a main body on which the liquid ejection unit is mounted, a liquid supply device that is configured to be movable independently of the main body and supplies the liquid to the liquid ejection unit via a liquid supply path, a main body side engaging portion provided on the main body and engaging with the liquid supply device, and a liquid supply device side engaging portion provided on the liquid supply device and engaging with the main body. One of the main body side engaging portion or the liquid supply device side engaging portion is made of a conductive member and has an insertion portion movable in the vertical direction, and the other of the main body side engaging portion or the liquid supply device side engaging portion has a receiving portion that receives the insertion portion. The receiving portion is provided with a contact member made of a conductive member, and is configured to be able to receive the insertion portion in a state where the contact member and the insertion portion are in contact with each other.

[0008] According to this aspect, one of the main body side engaging portion or the liquid supply device side engaging portion has an insertion portion made of a conductive member and movable in the vertical direction, and the other of the main body side engaging portion or the liquid supply device side engaging portion has a receiving portion that receives the insertion portion in a state where a contact member made of a conductive member and the insertion portion are in contact with each other. By adopting such a configuration, when the receiving portion receives the insertion portion, the insertion portion can be brought into contact with the contact member according to gravity, so that the contact with the contact member can be maintained and conduction can be easily achieved, and the position of the liquid supply device relative to the main body can be properly maintained while ensuring conduction between the liquid supply device and the main body.

[0009] The liquid ejection device according to the second aspect of the present invention is an aspect subordinate to the first aspect, and is characterized in that the receiving portion is open in the vertical direction, and the insertion portion is inserted into the opening so that the contact member and the insertion portion are in contact with each other.

[0010] According to this aspect, the receiving portion is configured to open in the vertical direction, and the contact member and the insertion portion come into contact with each other when the insertion portion is inserted into the opening. By adopting such a configuration, the receiving portion can be made simple, and while suitably ensuring electrical connection between the liquid supply device and the main body, the position of the liquid supply device with respect to the main body can be properly maintained.

[0011] The liquid ejection device according to the third aspect of the present invention is an aspect dependent on the first or second aspect, characterized in that the main body side engaging portion has the insertion portion, and the liquid supply device side engaging portion has the receiving portion.

[0012] According to this aspect, the main body side engaging portion has the insertion portion, and the liquid supply device side engaging portion has the receiving portion. Although the liquid supply device is often moved more frequently than the main body, by providing the insertion portion in the main body side engaging portion and the receiving portion in the liquid supply device side engaging portion in this way, it becomes easy to reduce the size and weight of the liquid supply device that is frequently moved.

[0013] The liquid ejection device according to the fourth aspect of the present invention is an aspect dependent on the first or second aspect, characterized in that a first locking member is disposed at a distance from the insertion portion on one of the main body side engaging portion or the liquid supply device side engaging portion and extending in the vertical direction, and a second locking member is disposed at a distance from the receiving portion on the other of the main body side engaging portion or the liquid supply device side engaging portion, and the movement with respect to the first locking member is locked.

[0014] According to this aspect, the first locking member and the second locking member are provided at a distance from the insertion portion and the receiving portion. Therefore, the main body and the liquid supply device can be positioned at two spaced locations, and the movement of the liquid supply device in the rotational direction with the vertical direction as the rotation axis with respect to the main body can be suppressed.

[0015] The liquid ejection device according to the fifth aspect of the present invention is an aspect subordinate to the fourth aspect, and is characterized in that a configuration is provided to restrict the separation between the main body and the liquid supply device when the first locking member and the second locking member come into contact with each other.

[0016] According to this aspect, a configuration is provided to restrict the separation between the main body and the liquid supply device when the first locking member and the second locking member come into contact with each other. By adopting such a configuration, it is possible to easily and effectively suppress the movement of the liquid supply device in the rotational direction with respect to the main body.

[0017] The liquid ejection device according to the sixth aspect of the present invention is an aspect subordinate to the fourth aspect, and is characterized in that the insertion portion and the first locking member have different surface treatment methods.

[0018] According to this aspect, the insertion portion and the first locking member have different surface treatment methods. Since the characteristics required for the insertion portion and the first locking member are not necessarily common, by adopting such a configuration, it is possible to perform a suitable surface treatment according to the characteristics required for each of the insertion portion and the first locking member.

[0019] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. First, with reference mainly to FIG. 1, an outline of a liquid ejection device 1 according to an embodiment of the present invention will be described. In FIG. 1, some constituent members are simplified and omitted for easier understanding of the configuration. Here, in FIG. 1, the X-axis direction in the drawing is the horizontal direction and is the extending direction of the support portion of the supply unit 2 that holds the roll body R1 in which the medium M is wound in a roll shape, the Y-axis direction is the horizontal direction and is the front-rear direction of the liquid ejection device 1 and is a direction orthogonal to the X-axis direction, and the Z-axis direction is the vertical direction. Also, hereinafter, the direction in which the arrow points is the + direction, and the direction opposite to the direction in which the arrow points is the - direction. For example, in FIG. 1, the vertically upward direction is the +Z direction, the vertically downward direction is the -Z direction, the front of the liquid ejection device 1 is the +Y direction, and the rear of the liquid ejection device 1 is the -Y direction.

[0020] As shown in FIG. 1, the liquid ejection apparatus 1 of this embodiment includes a main body 9, and leg frames 7 are attached to the vicinity of both ends of the main body 9 in the X-axis direction. Note that the main body 9 can be considered to also include a supply unit 2, leg frames 7, a medium support unit 3, a winding unit 6, and the like, which will be described later. Casters 13 and adjusters 14 are provided below the leg frames 7. The liquid ejection apparatus 1 can be easily moved using the casters 13, and the heights at a plurality of locations can be adjusted using the adjusters 14 so that the liquid ejection apparatus 1 can be suitably installed on the installation surface G. Further, the liquid ejection apparatus 1 of this embodiment includes a supply unit 2 that holds a roll body R1 on the -Y direction side, which is the rear side of the main body 9. The supply unit 2 supports the paper tube of the roll body R1 around which the medium M is wound so as to sandwich it in the X-axis direction, and supplies the medium M to a position facing the head 5 as a liquid ejection unit.

[0021] In the liquid ejection apparatus 1 of this embodiment, when the medium M is conveyed in the conveyance direction A, the supply unit 2 rotates the roll body R1 in the rotation direction C. In FIG. 1, a roll body R1 wound so that the image formation surface M1 on which an image is formed faces outward is used. However, when a roll body R1 wound so that the image formation surface M1 faces inward is used, the supply unit 2 can rotate the roll body R1 in the direction opposite to the rotation direction C to send out the medium M.

[0022] Further, the liquid ejection apparatus 1 of this embodiment includes a conveyance path for the medium M including a medium support unit 3 that supports the medium M on a support surface 30. The liquid ejection apparatus 1 of this embodiment includes, as the medium support unit 3, an upstream medium support unit 3A, a medium support unit 3B, and a downstream medium support unit 3C from the upstream side to the downstream side in the conveyance direction A. The liquid ejection apparatus 1 also includes a pair of rollers 8 including a driving roller and a driven roller as a conveyance unit for conveying the medium M in the conveyance direction A in the conveyance path. However, the configuration of the conveyance unit is not particularly limited.

[0023] In addition, in the liquid ejection device 1 of the present embodiment, at a position facing the medium support portion 3B, a head 5 is provided as a liquid ejection portion that forms an image by ejecting ink, which is a liquid, from a plurality of nozzles, and a carriage 4 that mounts the head 5 and is reciprocally movable in the width direction B. A liquid supply path 12 made of a tube or the like is connected to the head 5, and ink is supplied to the head 5 via the liquid supply path 12 from an ink cartridge mounted on a liquid supply device 100 represented in FIG. 2 and the like, the details of which will be described later. In the liquid ejection device 1 of the present embodiment, the conveyance direction A at the position facing the head 5 on the medium support portion 3B is the +Y direction, the width direction B, which is the moving direction of the head 5, is a direction along the X-axis direction, and the ink ejection direction is the -Z direction.

[0024] With the above configuration, while the head 5 reciprocally moves in the width direction B, which is a direction intersecting the conveyance direction A, it is possible to form an image by ejecting ink from nozzles (not shown) onto the conveyed medium M. The liquid ejection device 1 of the present embodiment can form a desired image on the medium M by repeating conveying the medium M in the conveyance direction A at a predetermined conveyance amount and ejecting ink while moving the head 5 in the width direction B with the medium M stopped.

[0025] Further, a heater 20 is provided as a heating portion for heating the supported surface M2 on the side opposite to the image forming surface M1 of the medium M in the downstream medium support portion 3C of the medium support portion 3. The heater 20 of the present embodiment is configured by a heating wire or the like, but is not limited to such a configuration. Further, not only the downstream medium support portion 3C but also the upstream medium support portion 3A and the medium support portion 3B may be provided with a medium heating portion for heating the supported surface M2 on the side opposite to the image forming surface M1 of the medium M.

[0026] Also, a blowing unit 10 for drying the ink discharged from the head 5 onto the image forming surface M1 of the medium M by blowing the air flow F is provided at a portion facing the downstream-side medium support portion 3C in the conveyance path. The blowing unit 10 of the present embodiment includes a fan 11 that generates the air flow F and is configured to be able to blow the gas as the air flow F onto the image forming surface M1 of the medium M, but is not limited to such a configuration.

[0027] Further, a winding unit 6 for winding the medium M conveyed in the conveyance direction A into a roll shape to form a roll body R2 is provided downstream of the downstream-side medium support portion 3C in the conveyance direction A. In the liquid ejection device 1 of the present embodiment, the supply unit 2 and the winding unit 6 have the same configuration. The medium M conveyed from the supply unit 2 to the winding unit 6 is conveyed in a state where a predetermined tension is applied by the winding unit 6 or the like. The winding unit 6 supports the paper tube, which is the winding core of the roll body R2, so as to sandwich it in the X-axis direction, and winds the medium M into a roll shape by rotating the paper tube. In FIG. 1, the winding unit 6 rotates the roll body R2 in the rotation direction C so that the image forming surface M1 is wound to the outside, but the medium M may be wound so that the image forming surface M1 is on the inside. In that case, the winding unit 6 rotates the roll body R2 in the direction opposite to the rotation direction C.

[0028] Note that a guide bar 200 is provided between the downstream-side medium support portion 3C and the winding unit 6 in the conveyance direction A. The guide bar 200 has an arcuate contact surface 201 when viewed from the width direction B. Then, the guide bar 200 guides the conveyance of the medium M by bringing the contact surface 201 into contact with the supported surface M2 of the medium M wound by the winding unit 6. However, the configuration of the guide bar 200 is not particularly limited, and further, a configuration without the guide bar 200 may be adopted.

[0029] As described above, the liquid ejection device 1 of the present embodiment includes a head 5 that ejects ink, and the head 5 is mounted on the main body 9. And the liquid ejection device 1 of the present embodiment includes a liquid supply device 100 that supplies ink to the head 5. Hereinafter, the details of the liquid supply device 100 and the engagement portion 110 between the main body 9 and the liquid supply device 100 will be mainly described with reference to FIGS. 2 to 6.

[0030] The liquid supply device 100 of the present embodiment is configured to be movable independently of the main body 9 as shown in FIGS. 2 to 4 and the like, and is configured to be able to supply ink to the head 5 via the liquid supply path 12. The liquid supply device 100 can mount a plurality of ink cartridges filled with ink, and can connect each of the plurality of ink cartridges and a plurality of liquid supply paths 12 provided corresponding to each of the ink cartridges. And the liquid ejection device 1 of the present embodiment can eject the ink of each of the plurality of ink cartridges from the head 5 onto the image forming surface M1 of the medium M to be conveyed.

[0031] Also, as shown in FIGS. 2 to 5, the engagement portion 110 has a main body side engagement portion 110A provided on the main body 9 and capable of engaging with the liquid supply device 100, and a liquid supply device side engagement portion 110B provided on the liquid supply device 100 and capable of engaging with the main body 9. And, as shown in FIGS. 3 and 5, the main body side engagement portion 110A has an insertion portion 111 movable in the vertical direction (Z-axis direction), and the liquid supply device side engagement portion 110B has a receiving portion 112 for receiving the insertion portion 111. By configuring the insertion portion 111 to be movable in the vertical direction, even if the vertical positional relationship between the main body 9 and the liquid supply device 100 varies due to a change in the state of the installation surface G or height adjustment by the adjuster 14, etc., it is possible to maintain the engagement state between the main body side engagement portion 110A and the liquid supply device side engagement portion 110B.

[0032] Here, as shown in FIG. 6, the receiving portion 112 includes a leaf spring-like contact member 112A that contacts the insertion portion 111 when receiving the insertion portion 111, and a sheet metal portion 112C that the contact member 112A contacts when the insertion portion 111 is pushed from the vertically upward direction to the vertically downward direction when receiving the insertion portion 111. That is, the receiving portion 112 is configured to be able to receive the insertion portion 111 with the contact member 112A and the insertion portion 111 in contact. Note that the leaf spring-like contact member 112A is in the posture represented by the broken line in FIG. 6 and is not in contact with the sheet metal portion 112C before the insertion portion 111 is inserted into the opening 112B of the receiving portion 112, and becomes the posture represented by the solid line in FIG. 6 and contacts the sheet metal portion 112C when the insertion portion 111 is inserted into the opening 112B.

[0033] Further, the insertion portion 111, the liquid supply device side engaging portion 110B, and the sheet metal portion 112C are made of metal. And the insertion portion 111, the liquid supply device side engaging portion 110B, and the sheet metal portion 112C are all made of a conductive metal and are subjected to metal plating treatment, and are conductive members. Therefore, when the receiving portion 112 receives the insertion portion 111, the liquid supply device 100 and the main body 9 are electrically connected.

[0034] The liquid ejection device 1 is provided with an insertion portion 111 made of a conductive member that is movable in the vertical direction at either the main body side engaging portion 110A or the liquid supply device side engaging portion 110B, and is configured to include a receiving portion 112 made of a conductive member that receives the insertion portion 111 in a state where the contact member 112A made of a conductive member and the insertion portion 111 are in contact with each other at the other of the main body side engaging portion 110A or the liquid supply device side engaging portion 110B. By adopting such a configuration, when the receiving portion 112 receives the insertion portion 111, the insertion portion 111 can be brought into contact with the contact member 112A according to gravity, maintaining the contact with the contact member 112A and facilitating electrical conduction, and ensuring electrical conduction between the liquid supply device 100 and the main body 9 while properly maintaining the position of the liquid supply device 100 relative to the main body 9 of the liquid supply device 100. By properly maintaining the position of the liquid supply device 100 relative to the main body 9 of the liquid supply device 100, for example, even when the liquid ejection device 1 is moved, the liquid supply device 100 can be moved following the main body 9, reducing the risk that the liquid supply path 12 is damaged due to excessive separation between the main body 9 and the liquid supply device 100, or the risk of collision due to excessive proximity between the main body 9 and the liquid supply device 100.

[0035] Here, as described above, the liquid ejection device 1 of this embodiment has the insertion portion 111 at the main body side engaging portion 110A and the receiving portion 112 at the liquid supply device side engaging portion 110B. However, it may also be configured to have the receiving portion 112 at the main body side engaging portion 110A and the insertion portion 111 at the liquid supply device side engaging portion 110B. However, it is particularly preferable that, like the engaging portion 110 of this embodiment, the main body side engaging portion 110A has the insertion portion 111 and the liquid supply device side engaging portion 110B has the receiving portion 112. Since the liquid supply device 100 is often moved more frequently than the main body 9, adopting such a configuration makes it easier to miniaturize and reduce the weight of the liquid supply device 100 that is moved frequently.

[0036] Also, as shown in FIG. 6 and the like, the receiving portion 112 of the engaging portion 110 of the present embodiment has an opening portion 112B that opens in the vertical direction, and the contact member 112A and the insertion portion 111 come into contact with each other when the insertion portion 111 is inserted into the opening portion 112B. The insertion portion 111 is restricted from moving in the horizontal direction when inserted into the opening portion 112B. With such a configuration, the liquid ejection device 1 of the present embodiment can simplify the configuration of the receiving portion 112, and can suitably maintain the position of the liquid supply device 100 with respect to the main body 9 while ensuring electrical connection between the liquid supply device 100 and the main body 9.

[0037] Further, the engaging portion 110 of the liquid ejection device 1 is provided with a rod-shaped first locking member 113 that extends in the vertical direction with a space in the Y-axis direction from the insertion portion 111 and the receiving portion 112, and a wall-shaped second locking member 114 that can restrict the movement of the first locking member 113 in the +X direction. In this way, it is preferably provided with a first locking member 113 that is arranged at a distance from the insertion portion 111 on one of the main body side engaging portion 110A or the liquid supply device side engaging portion 110B and extends in the vertical direction, and a second locking member 114 that is arranged at a distance from the receiving portion 112 on the other of the main body side engaging portion 110A or the liquid supply device side engaging portion 110B and whose movement with respect to the first locking member 113 is locked.

[0038] By adopting such a configuration, the main body 9 and the liquid supply device 100 can be positioned at two spaced locations, and the liquid supply device 100 can be moved in a rotational direction with the vertical direction as the rotation axis with respect to the main body 9. Specifically, it is possible to suppress the rotation of the liquid supply device 100 with respect to the main body 9 about the insertion portion 111 extending in the vertical direction as the rotation axis. In the engaging portion 110 of the present embodiment, a rod-shaped first locking member 113 is provided on the main body side engaging portion 110A and a wall-shaped second locking member 114 is provided on the liquid supply device side engaging portion 110B. However, a configuration in which a wall-shaped second locking member 114 is provided on the main body side engaging portion 110A and a rod-shaped first locking member 113 is provided on the liquid supply device side engaging portion 110B may also be employed. Furthermore, the configurations of the first locking member 113 and the second locking member 114 are not particularly limited, and the first locking member 113 may have a configuration other than rod-shaped, and the second locking member 114 may have a configuration other than wall-shaped.

[0039] Specifically, as shown in FIG. 5 and the like, the first locking member 113 and the second locking member 114 of the present embodiment are configured such that the rod-shaped first locking member 113 extending in the vertical direction (Z-axis direction) and the wall-shaped second locking member 114 positioned on the +X direction side of the first locking member 113 come into contact with each other to restrict the separation between the main body 9 and the liquid supply device 100. By configuring the first locking member 113 and the second locking member 114 in this way, it is possible to easily and effectively suppress the movement of the liquid supply device 100 in the rotational direction with respect to the main body 9.

[0040] In addition, in the engaging portion 110 of the present embodiment, surface treatment is performed on both the insertion portion 111 and the first locking member 113 by metal plating. However, the surface treatment methods of the insertion portion 111 and the first locking member 113 may be different. Since the characteristics required for the insertion portion 111 and the first locking member 113 are not necessarily common, different surface treatments can be performed on the insertion portion 111 and the first locking member 113 to perform suitable surface treatment according to the characteristics required for each of the insertion portion 111 and the first locking member 113.

[0041] As described above, in the engaging portion 110 of the present embodiment, both the insertion portion 111 and the first locking member 113 are surface-treated with metal plating. Although the second locking member 114 is made of metal, its surface is coated with a non-conductive paint. Therefore, while the insertion portion 111 and the receiving portion 112 are electrically conductive, the first locking member 113 and the second locking member 114 are not electrically conductive. However, a configuration may be adopted in which the first locking member 113 and the second locking member 114 are electrically conductive by, for example, surface-treating the second locking member 114 with metal plating. Further, if a configuration is adopted in which the first locking member 113 and the second locking member 114 are not electrically conductive, the first locking member 113 may be surface-treated by coating it with a non-conductive paint or the like.

[0042] The present invention is not limited to the above-described embodiments, and can be implemented in various configurations without departing from the gist thereof. Further, the technical features in the embodiments corresponding to the technical features in each form described in the summary of the invention can be appropriately replaced or combined in order to solve some or all of the above-described problems or to achieve some or all of the above-described effects. Further, if the technical feature is not described as essential in this specification, it can be appropriately deleted.

Explanation of Reference Numerals

[0043] 1... Liquid ejection device, 2... Supply unit, 3... Medium support unit, 3A... Upstream medium support unit, 3B... Medium support unit, 3C... Downstream medium support unit, 4... Carriage, 5... Head (liquid ejection unit), 6... Take-up unit, 7... Leg frame, 8... Roller pair, 9... Main body, 10... Blowing unit, 11... Fan, 12... Liquid supply path, 13... Caster, 14... Adjuster, 20... Heater, 30... Support surface, 100... Liquid supply device, 110... Engaging portion, 110A... Main body side engaging portion, 110B... Liquid supply device side engaging portion, 111... Insertion portion, 112... Receiving portion, 112A... Contact member, 112B... Opening (opening), 112C... Sheet metal portion, 113... First locking member, 114... Second locking member, 200... Guide bar, 201... Contact surface, G... Installation surface, M... Medium, M1... Image formation surface, M2... Supported surface, R1... Roll body, R2... Roll body

Claims

1. A liquid discharge unit that discharges liquid, A main body on which the liquid discharge unit is mounted, A liquid supply device that is configured to be movable independently of the main body and supplies the liquid to the liquid discharge unit via a liquid supply path, A main body side engaging portion provided on the main body and engaging with the liquid supply device, A liquid supply device side engaging portion provided on the liquid supply device and engaging with the main body, Comprising One of the main body side engaging portion or the liquid supply device side engaging portion is made of a conductive member and has an insertion portion that can move in the vertical direction, The other of the main body side engaging portion or the liquid supply device side engaging portion has a receiving portion that receives the insertion portion, The receiving portion is provided with a contact member made of a conductive member, and is configured to be able to receive the insertion portion in a state where the contact member and the insertion portion are in contact with each other. A liquid discharge device characterized by this.

2. In the liquid discharge device according to Claim 1, The receiving portion is open in the vertical direction, and the insertion portion is inserted into the opening so that the contact member and the insertion portion are in contact with each other. A liquid discharge device characterized by this configuration.

3. In the liquid discharge device according to Claim 1 or 2, The main body side engaging portion has the insertion portion, The liquid supply device side engaging portion has the receiving portion. A liquid discharge device characterized by this.

4. In the liquid discharge device according to Claim 1 or 2, A first locking member that is arranged at an interval from the insertion portion on one of the main body side engaging portion or the liquid supply device side engaging portion and extends in the vertical direction, A second locking member that is arranged at an interval from the receiving portion on the other of the main body side engaging portion or the liquid supply device side engaging portion and whose movement with respect to the first locking member is locked. A liquid discharge device characterized by comprising.

5. In the liquid discharge device according to Claim 4, The main body and the liquid supply device are configured to be restricted from separating when the first locking member and the second locking member come into contact with each other. A liquid discharge device characterized by this.

6. In the liquid discharge device according to Claim 4, The insertion portion and the first locking member have different surface treatment methods. A liquid discharge device characterized by this.

Images