Liquid ejecting apparatus

Abstract

The invention provides a liquid ejecting apparatus capable of improving convenience of a worker. The liquid ejecting apparatus includes: a head having a nozzle surface in which a plurality of nozzles that eject liquid are opened; a carriage that moves in a first direction intersecting the vertical direction in a state in which the head is supported; a cover that covers the nozzle surface; and a moving unit that moves the cap in the vertical direction to a cap pressing position at which the cap covers the nozzle surface and a separation position at which the cap is separated from the nozzle surface, the moving unit being capable of being operated by a worker from the front, and the moving unit being capable of being operated by the worker from the rear. The front is a direction along a second direction intersecting the vertical direction and the first direction.

Description

Technical Field

[0001] This invention relates to a liquid ejection device. Background Technology

[0002] For example, as disclosed in Patent Document 1, a recording device is provided with a recording head that sprays liquid. As an example of such a liquid spraying device, the recording device includes a cover that seals the nozzle of the recording head and a cover lifting section that raises and lowers the cover. As an example of a moving section, the cover lifting section is capable of moving the cover to a raised position and a lowered position, wherein the raised position is a position where the cover is pressed down and the lowered position is a position where the cover is not pressed down.

[0003] The lid lifting unit includes a horizontal axis extending in the left-right direction when viewed from the front, and a cam plate fixed to the horizontal axis. By rotating the horizontal axis with the cam plate abutting against the lower surface of the lid, the cam plate can raise the lid.

[0004] However, in such liquid dispensing devices, operators need to work from the side of the device, which extends from the horizontal axis, when adjusting the moving part. Therefore, sufficient working space needs to be ensured on the side of the device. Thus, it is desirable to improve operator convenience.

[0005] Patent Document 1: Japanese Patent Application Publication No. 2013-154587 Summary of the Invention

[0006] A liquid ejection device for solving the above-mentioned problem includes: a head having a nozzle surface with multiple nozzles for ejecting liquid; a carriage that moves along a first direction intersecting the vertical direction while supporting the head; a cover that covers the nozzle surface; and a moving part that moves the cover along the vertical direction to a pressing position and a separating position, wherein the pressing position is the position where the cover covers the nozzle surface, and the separating position is the position where the cover separates from the nozzle surface, and the moving part can be operated by an operator from the front, the front being a direction intersecting the vertical direction and the first direction. Attached Figure Description

[0007] Figure 1 This is a perspective view of the liquid ejection device according to the first embodiment.

[0008] Figure 2 This is a top view showing the liquid ejection device of the first embodiment.

[0009] Figure 3 This is a perspective view of the liquid ejection device according to the first embodiment.

[0010] Figure 4 This is a perspective view of the liquid ejection device according to the first embodiment.

[0011] Figure 5 This is a front view showing the media support portion of the first embodiment.

[0012] Figure 6 This is a perspective view showing the medium support portion of the first embodiment.

[0013] Figure 7 This is a perspective view showing the rotating shaft and the moving part of the first embodiment.

[0014] Figure 8 This is a perspective view showing the rotating shaft and the moving part of the first embodiment.

[0015] Figure 9 This is a front view showing the media support portion of the second embodiment. Detailed Implementation

[0016] First Implementation Method

[0017] Hereinafter, an embodiment of the liquid ejection device will be described with reference to the accompanying drawings. In the following description, the direction intersecting the vertical direction Z is defined as the width direction X, and the direction intersecting both the vertical direction Z and the width direction X is defined as the front-back direction Y. One of the width directions X is defined as the first width direction X1, and the other of the width directions X is defined as the second width direction X2. One of the front-back directions Y is defined as the front Y1, and the other of the front-back directions Y is defined as the rear Y2. The upper part of the vertical direction Z is defined as the upper Z1, and the lower part of the vertical direction Z is defined as the lower Z2. The width direction X corresponds to an example of the first direction, and the front-back direction Y corresponds to an example of the second direction.

[0018] Structure of liquid ejection device 11

[0019] like Figure 1 As shown, the liquid ejection device 11 is configured to perform printing on a medium by ejecting liquid onto the medium. The liquid may include, for example, ink. The liquid may also be of multiple colors. The liquid ejection device 11 may also be an inkjet printer.

[0020] The liquid dispensing device 11 includes a frame 12. The frame 12 is configured to house the various components constituting the liquid dispensing device 11. The frame 12 is configured as an external component of the liquid dispensing device 11. The frame 12 may also be supported by legs (not shown).

[0021] The frame 12 has a front surface 12A. The front surface 12A is the surface on the front Y1 of the frame 12. The frame 12 has a top surface 12B. The top surface 12B is the surface on the top Z1 of the frame 12.

[0022] The frame 12 has a first side surface 12C and a second side surface 12D. The first side surface 12C is the surface of the frame 12 in the first width direction X1. The second side surface 12D is the surface of the frame 12 in the second width direction X2.

[0023] The first side surface 12C and the second side surface 12D are surfaces that include the vertical direction Z and the front-rear direction Y.

[0024] Thus, the liquid ejection device 11 can be configured to be in contact with the wall on either the first side 12C or the second side 12D. The liquid ejection device 11 is envisioned as a device accessible from the front surface 12A side. The liquid ejection device 11 can also be configured to be in contact with the wall on the back side (not shown). Here, "configured in contact" also includes the case where the liquid ejection device 11 is configured such that a gap exists between the liquid ejection device 11 and the wall, preventing personnel from entering.

[0025] The liquid dispensing device 11 includes an operation panel 13. The operation panel 13 is mounted on a top surface 12B. The operation panel 13 is located on the front Y1 side of the top surface 12B. The operation panel 13 includes an operating section that can be operated by a user. The operation panel 13 also includes a display section for displaying various information. The operation panel 13 may also be a touch panel integrated into the display section.

[0026] The liquid ejection device 11 includes an outlet 14 and a media support 15. The outlet 14 is an opening for discharging the printed media. The outlet 14 is provided on the front surface 12A. The outlet 14 is provided to extend in the width direction X.

[0027] A media support portion 15 is provided on the front surface 12A. The media support portion 15 may also be configured to extend rearward Y2 from the front surface 12A. The media support portion 15 may also be configured to protrude forward Y1 from the front surface 12A. The media support portion 15 is provided in a manner that extends in the width direction X.

[0028] The medium support 15 is configured to support the medium discharged from the outlet 14. The medium discharged from the outlet 14 is a liquid medium. Thus, the medium support 15 is configured to support the liquid medium.

[0029] The liquid ejection device 11 includes a cover 16. The cover 16 is provided in a detachable manner at the front Y1 of the medium support portion 15. The cover 16 is provided at the end of the medium support portion 15 in the second width direction X2.

[0030] Area of ​​liquid ejection device 11

[0031] like Figure 2 As shown, the liquid ejection device 11 includes a printing area 20 and a maintenance area 30. The printing area 20 is used for printing on the medium. The maintenance area 30 is used for maintaining the head 23, which will be described later.

[0032] The printing area 20 is located at the center of the liquid ejection device 11. The maintenance area 30 is located at a distance x2 in the second width direction relative to the center of the liquid ejection device 11. That is, the maintenance area 30 is located at a distance x2 in the second width direction relative to the printing area 20.

[0033] Structure of liquid ejection section 21

[0034] The liquid ejection device 11 includes a liquid ejection section 21 and a support section 22. The liquid ejection device 11 also includes a conveying section (not shown). The conveying section is configured to convey a medium. The conveying section is configured to convey the medium forward Y1 within the printing area 20.

[0035] The liquid ejection section 21 is configured to eject liquid onto the medium. The liquid ejection section 21 is configured to eject liquid onto the area of ​​the medium supported by the support section 22 in the printing area 20. The liquid ejection section 21 is configured to eject liquid onto the medium being conveyed forward Y1 in the printing area 20.

[0036] The liquid ejection section 21 includes a head 23, a carriage 24, and a carriage guide 25. In other words, the liquid ejection device 11 includes a head 23, a carriage 24, and a carriage guide 25.

[0037] The head 23 is configured to spray liquid. In this embodiment, the head 23 sprays liquid downwards Z2. The head 23 is configured to be supported on the bottom surface of the carriage 24.

[0038] The head 23 has a nozzle surface 23A. The nozzle surface 23A is a surface with multiple nozzles (not shown) that are open and from which liquid is ejected. The nozzle surface 23A is arranged such that it faces downward Z2 in the bottom surface of the head 23. The head 23 is configured to eject liquid from the multiple nozzles.

[0039] The carriage 24 is configured to support the head 23. The carriage 24 is supported on the carriage guide 25. The carriage guide 25 is configured to extend in the width direction X. The carriage guide 25 is configured to extend in the width direction X, spanning the printing area 20 and the maintenance area 30. The carriage 24 is configured to reciprocate along the carriage guide 25 in the width direction X by a driving force from a carriage drive unit (not shown).

[0040] Thus, the carriage 24 is configured to move along the width direction X while supported by the head 23. The carriage 24 is configured to move along the width direction X within the printing area 20 and the maintenance area 30.

[0041] The carriage 24 moves back and forth along the width direction X within the printing area 20, thus passing through a position opposite to the medium supported by the support portion 22. The head 23 is configured to eject liquid into the printing area 20 along the width direction X. By ejecting liquid onto the medium, the head 23 prints an image on the medium.

[0042] The support portion 22 is configured to support the medium. The support portion 22 is provided to extend along the width direction X in the printing area 20. The support portion 22 is configured to support the medium conveyed in the printing area 20 by the conveying portion. The support portion 22 is provided in the printing area 20 at a position opposite to the head 23.

[0043] Structure of Maintenance Section 31

[0044] The liquid ejection device 11 includes a maintenance section 31. The maintenance section 31 is provided in a maintenance area 30. The maintenance section 31 is located in the maintenance area 30 at a position opposite to the head 23. The maintenance section 31 is configured to perform maintenance on the head 23.

[0045] The maintenance unit 31 includes a moisturizing cover 32, a rinsing unit 33, a suction cover 34, a degassing unit 35, and a wiping unit 36. In the maintenance area 30, the moisturizing cover 32, the rinsing unit 33, the suction cover 34, the degassing unit 35, and the wiping unit 36 ​​are arranged sequentially in the second width direction X2.

[0046] The moisturizing cover 32 is positioned in the maintenance area 30 opposite to the head 23. The moisturizing cover 32 is located on the side closer to the first width direction X1 compared to the suction cover 34 in the width direction X.

[0047] The moisturizing cap 32 forms a space communicating with the nozzle by contacting the head 23. The moisturizing cap 32 presses against the head 23, thereby moisturizing the nozzle. In other words, the moisturizing cap 32 moisturizes the head 23 by covering the nozzle surface 23A while facing the head 23.

[0048] The moisturizing cap 32, through the operation of the second moving part 52 (described later), can move along the vertical direction Z to a second pressing position and a second separation position. The second pressing position is the position where the moisturizing cap 32 covers the nozzle surface 23A when the moisturizing cap 32 is facing the head 23. The second separation position is the position where the moisturizing cap 32 is separated from the nozzle surface 23A when the moisturizing cap 32 is facing the head 23.

[0049] The rinsing section 33 is disposed in the maintenance area 30 at a position opposite to the head 23. The rinsing section 33 is located on the second width direction X2 side, which is outward compared to the moisturizing cover 32, in the width direction X. The rinsing section 33 is located on the first width direction X1 side, which is inward compared to the suction cover 34, in the width direction X.

[0050] The rinsing section 33 is configured to receive the liquid discharged from the head 23. The rinsing section 33 can also contain the liquid discharged from the head 23 under pressure. That is, the rinsing section 33 can also contain the liquid discharged during pressurized cleaning.

[0051] Pressurized cleaning involves pressurizing the liquid inside the head 23 to force the liquid out of the head 23. Pressurized cleaning is a maintenance procedure that forces liquid out of the nozzle, thereby expelling air bubbles, foreign matter, etc., along with the liquid inside the head 23.

[0052] The flushing section 33 can also contain the liquid ejected during air jetting. Air jetting is the action of ejecting liquid from the nozzle to suppress nozzle clogging. Air jetting is also known as flushing. Through air jetting, for example, viscous liquid is discharged from the nozzle. The flushing section 33 receives the liquid discharged from the head 23 opposite to the flushing section 33.

[0053] The suction cap 34 is positioned in the maintenance area 30 opposite to the head 23. The suction cap 34 is located on the side further in the second width direction X2 compared to the moisturizing cap 32. Although in Figure 2 In the original configuration, the suction cap 34 is covered by a cover, but in actual use, the cover is removed. Thus, the suction cap 34 becomes open.

[0054] The suction cap 34 forms a space communicating with the nozzle by contacting the head 23. The suction cap 34 presses against the head 23, thus sealing it. With the suction cap 34 sealing the nozzle surface 23A, liquid is drawn from the head 23 by suction performed by a suction pump (not shown). In other words, the suction cap 34 is a cap that draws liquid from the head 23 by covering the nozzle surface 23A while facing the head 23.

[0055] Thus, by suctioning the space communicating with the multiple nozzles formed by the suction cap 34 and the head 23, a negative pressure is created in the space communicating with the multiple nozzles, thereby performing suction cleaning of the head 23. When suction cleaning is performed on the head 23 that is not filled with liquid, liquid can be filled into the head 23. When suction cleaning is performed on the head 23 that is filled with liquid, air bubbles, foreign matter, etc., inside the head 23 can be expelled. Thus, the suction cap 34 is configured to contain the liquid discharged from the head 23 during suction cleaning.

[0056] The suction cap 34, through the operation of the first moving part 51 (described later), can move along the vertical direction Z to a first capping position and a first separation position. The first capping position is the position where the suction cap 34 covers the nozzle surface 23A when the suction cap 34 is facing the head 23. The first separation position is the position where the suction cap 34 is separated from the nozzle surface 23A when the suction cap 34 is facing the head 23.

[0057] A degassing section 35 is provided in the maintenance area 30 at a position opposite to the head 23. The degassing section 35 is located on the side further in the second width direction X2 compared to the moisturizing cover 32 and the suction cover 34. The degassing section 35 is configured to degas the head 23 or the flow channel up to the head 23. The degassing section 35 can also remove air bubbles and the like contained in the liquid from the head 23 or the flow channel up to the head 23.

[0058] The wiping section 36 is configured to wipe liquid from the head 23. The wiping section 36 is configured to wipe the nozzle surface 23A at a position opposite to the head 23. The wiping section 36 performs maintenance on the head 23 by wiping waste liquid from the nozzle surface 23A.

[0059] The wiping section 36 performs wiping of the nozzle surface 23A. The wiping section 36 may also be configured to move in the front-back direction Y. The wiping section 36 can also wipe the nozzle surface 23A by moving in the front-back direction Y. The wiping section 36 is located on the side of the second width direction X2 compared to the moisturizing cover 32 and the suction cover 34 in the width direction X.

[0060] Lid position adjustment

[0061] Here, refer to Figures 3 to 8 The position adjustment of the moisturizing cap 32 and the suction cap 34 will be described in detail below. Hereinafter, at least one of the moisturizing cap 32 and the suction cap 34 may be referred to simply as a cap. Cap position adjustment, for example, is the operation of adjusting the position of the cap in the vertical Z direction when the power is not turned on or when an error occurs.

[0062] like Figure 3 As shown, when the cover 16 is mounted on the media support 15, the operating area 17 is not exposed. That is, the cover 16 is configured to cover a portion of the media support 15 by being mounted on it. Thus, the operating area 17 is covered.

[0063] like Figure 4 As shown, there are instances where the position of the cover is manually adjusted by the operator. In such cases, the cover 16 is removed from the medium support 15. This exposes the operating area 17. The operating area 17 is used for adjusting the position of the moisturizing cover 32 and the suction cover 34.

[0064] The media support portion 15 includes an operating area 17. The operating area 17 is provided on the front surface 15A of the media support portion 15. The operating area 17 may also have a recess formed in the front surface 15A of the media support portion 15. The operating area 17 can be accessed by an operator from the front surface 12A side.

[0065] like Figure 5 As shown, the medium support portion 15 has one or more insertion holes 40. The insertion hole 40 is a hole that penetrates the medium support portion 15 along the front-rear direction Y. Although the insertion hole 40 is circular, it is not limited to this shape. The insertion hole 40 is a hole for adjusting the position of the cap. The insertion hole 40 is a hole for inserting a tool to perform the cap position adjustment. The tool may be, for example, a screwdriver.

[0066] The medium support portion 15 may also have a first insertion hole 41 and a second insertion hole 42, to form one or more insertion holes 40. The first insertion hole 41 is a hole for adjusting the position of the suction cap 34. The second insertion hole 42 is a hole for adjusting the position of the moisturizing cap 32.

[0067] The insertion hole 40 is covered by the cover 16 when it is mounted on the medium support portion 15. The insertion hole 40 is exposed when the cover 16 is removed from the medium support portion 15.

[0068] The media support 15 includes one or more operation display units 43. The operation display unit 43 is provided on the front surface 15A of the media support 15. The operation display unit 43 is positioned corresponding to the insertion hole 40. The operation display unit 43 can be visually confirmed by an operator from the front Y1 side of the liquid dispensing device 11.

[0069] The operation display unit 43 indicates the operating direction for adjusting the position of the lid. The operation display unit 43 includes an upward image and a downward image. The upward image indicates the operating direction in which the lid is raised. The downward image indicates the operating direction in which the lid is lowered. The upward image may, for example, be a plus sign image. The downward image may, for example, be a minus sign image.

[0070] The medium support portion 15 may also include a first operation display portion 44 and a second operation display portion 45, to form one or more operation display portions 43. The first operation display portion 44 is provided at a position corresponding to the first insertion hole 41. The second operation display portion 45 is provided at a position corresponding to the second insertion hole 42.

[0071] like Figure 6 As shown, the media support portion 15 includes one or more guide cylinders 46. The guide cylinder 46 is disposed on the back surface 15B of the media support portion 15. The guide cylinder 46 is configured to extend rearward Y2 from the back surface 15B of the media support portion 15. The inner diameter of the guide cylinder 46 may also decrease as it extends rearward Y2. The guide cylinder 46 is configured to communicate with the insertion hole 40 at its front Y1 end. The guide cylinder 46 is configured to guide a tool inserted from the front Y1 into the insertion hole 40 towards the rearward Y2.

[0072] The medium support portion 15 may also include a first guide tube 47 and a second guide tube 48, to serve as one or more guide tubes 46. The first guide tube 47 is provided in communication with the first insertion hole 41. The second guide tube 48 is provided in communication with the second insertion hole 42.

[0073] like Figure 7 As shown, the liquid dispensing device 11 includes one or more moving parts 50, one or more operating shafts 60, and one or more power transmission parts 70. The moving part 50 is a mechanism for moving the cap along the vertical direction Z. Specifically, the moving part 50 moves the cap along the vertical direction Z to a capping position and a disengaged position.

[0074] The moving part 50 includes a drive gear 53. The drive gear 53 is a gear for raising and lowering the cover. The drive gear 53 is rotatable about a drive shaft 53A. The drive shaft 53A is arranged to extend in the width direction X. The drive gear 53 may also be a gear for rotating a cam used to raise and lower the cover.

[0075] The moving part 50 includes a gear 54 and a gear 55. Gear 54 is supported by a drive shaft 53A. Gear 54 is configured to mesh with gear 55. Gear 55 can rotate about the rotation shaft 55A. Gear 55 can also be connected to a lifting drive source (not shown) for raising and lowering the cover. The lifting drive source can also be an electric motor. Thus, as gear 55 rotates, its power is transmitted to the drive gear 53 via gear 54. This causes the cover to rise and fall.

[0076] The liquid dispensing device 11 may also include a first moving part 51 and a second moving part 52, so as to have one or more moving parts 50. The first moving part 51 moves the suction cap 34 along the vertical direction Z to the first capping position and the first separation position. The second moving part 52 moves the moisturizing cap 32 along the vertical direction Z to the second capping position and the second separation position.

[0077] The operating shaft 60 is located Y2 behind the insertion hole 40. The operating shaft 60 is also located Y2 behind the guide tube 46. The operating shaft 60 is arranged to extend along the longitudinal direction Y. The operating shaft 60 is capable of rotating about an axis along the longitudinal direction Y. The operating shaft 60 is a mechanism for manually moving the cover along the vertical direction Z according to the operator's operation.

[0078] The operating shaft 60 includes a shaft portion 63, a drive portion 64, a guide portion 65, and an operating gear 66. The shaft portion 63 is provided to extend along the longitudinal direction Y. The drive portion 64, the guide portion 65, and the operating gear 66 are supported on the shaft portion 63.

[0079] The drive unit 64 is located at the end of the operating shaft 60 at the front Y1 position. The drive unit 64 is located at the rear Y2 position of the insertion hole 40. The drive unit 64 is located at the rear Y2 position of the guide cylinder 46. The drive unit 64 may also be, for example, a hole for inserting a tool. When a tool is inserted, the drive unit 64 transmits the driving force from the tool to the operating shaft 60.

[0080] A guide portion 65 is provided at the end of the front Y1 of the operating shaft 60. The guide portion 65 is cylindrical in shape. The guide portion 65 may also have a smaller inner diameter as it becomes rear Y2. The guide portion 65 is located rear Y2 of the insertion hole 40. The guide portion 65 is located rear Y2 of the guide tube 46.

[0081] The front Y1 end of the guide section 65 is open. The rear Y2 end of the guide section 65 communicates with the drive section 64. The guide section 65 guides the tool inserted into the insertion hole 40 and the guide tube 46 to the drive section 64.

[0082] The operating gear 66 is located on the rear Y2 side of the operating shaft 60. The operating gear 66 is supported by the shaft portion 63. The operating gear 66 rotates according to the driving force from the tool. The operating gear 66 is a gear used to transmit power to the power transmission unit 70.

[0083] Thus, by opening the cover 16, the operating shaft 60 can be operated by an operator from the front Y1 via the insertion hole 40, the guide tube 46, the guide part 65, and the drive part 64.

[0084] The liquid dispensing device 11 may also include a first operating shaft 61 and a second operating shaft 62, thus forming one or more operating shafts 60. The first operating shaft 61 is a mechanism for manually moving the suction cap 34 along the vertical direction Z according to the operator's operation. The second operating shaft 62 is a mechanism for manually moving the moisturizing cap 32 along the vertical direction Z according to the operator's operation.

[0085] The power transmission unit 70 is a mechanism for transmitting power from the operating shaft 60 to the moving part 50. The power transmission unit 70 includes gears 73 and 74, and a bevel gear 75. Gear 73 is rotatable about a rotating shaft 73A, which extends in the longitudinal direction Y. Gear 74 is rotatable about a rotating shaft 74A, which also extends in the longitudinal direction Y. Gear 74 meshes with gear 73.

[0086] The bevel gear 75 is supported by the rotating shaft 74A. The bevel gear 75 can rotate around the rotating shaft 74A. The bevel gear 75 meshes with the gear 55. The bevel gear 75 transmits the power of rotation around the rotating shaft 74A as the power of rotation around the rotating shaft 55A.

[0087] The liquid ejection device 11 may also include a first power transmission unit 71 and a second power transmission unit 72, to form one or more power transmission units 70. The first power transmission unit 71 is a mechanism for transmitting power from the first operating shaft 61 to the first moving part 51. The second power transmission unit 72 is a mechanism for transmitting power from the second operating shaft 62 to the second moving part 52.

[0088] The operating axis 60 can move in the forward and backward direction Y. The operating axis 60 can move in the following directions... Figure 7 The initial position P1 shown is... Figure 8 The transmission position P2 is moved as shown. The initial position P1 is when the operating gear 66 and gear 73 are not engaged. The initial position P1 is when the operating gear 66 is positioned Y1 forward of gear 73 in the forward-backward direction Y. The transmission position P2 is when the operating gear 66 and gear 73 are engaged.

[0089] The operating shaft 60 is positioned at the initial position P1 by force applied from a force-applying part (not shown). The operating shaft 60 moves from the initial position P1 to the transmission position P2 by being pressed in from the front Y1 to the rear Y2, thereby overcoming the force applied from the force-applying part (not shown).

[0090] The operating shaft 60 can also be positioned at the initial position P1 by applying force from a force-applying part (not shown) to abut against a first abutting part (not shown). The operating shaft 60 can also be positioned at the transmission position P2 by being pressed from the front Y1 to the rear Y2, thereby overcoming the force from the force-applying part (not shown) to abut against a second abutting part (not shown).

[0091] Thus, the operating shaft 60 can engage with the moving part 50 via the power transmission part 70. That is, the moving part 50 can be operated by an operator from the front Y1. In particular, the operating shaft 60 can engage with the moving part 50 by pressing it from the front Y1 to the rear Y2.

[0092] The function and effects of the first implementation method

[0093] The function and effects of the first embodiment will be explained.

[0094] (1-1) The moving part 50 moves the cap along the vertical direction Z towards the capping position and the separation position. The moving part 50 can be operated from the front Y1 of the liquid dispensing device 11. According to this structure, it is not necessary to ensure working space on the side of the liquid dispensing device 11, so the operator can operate the moving part 50 from the front Y1 of the liquid dispensing device 11. Therefore, the convenience of the operator is improved.

[0095] (1-2) The operating shaft 60 extends along the longitudinal direction Y and can be operated by an operator from the front Y1, and can engage with the moving part 50. According to this structure, even when the moving part 50 is positioned apart from the front Y1 of the liquid dispensing device 11, the operator can still operate the moving part 50 from the front Y1 of the liquid dispensing device 11 by using the operating shaft 60 extending along the longitudinal direction Y. Therefore, operator convenience is improved.

[0096] (1-3) By opening the cover 16 that covers a portion of the medium support 15, the operating shaft 60 can be operated by a worker. According to this structure, by opening the cover 16, a worker can operate the moving part 50 from the front Y1 of the liquid dispensing device 11. Furthermore, by not opening the cover 16 when not operating the moving part 50, the appearance of the liquid dispensing device 11 can be improved, and the intrusion of foreign matter into the interior of the liquid dispensing device 11 can be suppressed.

[0097] (1-4) When the cover 16 is mounted on the media support 15, the insertion hole 40 is covered by the cover 16. The operating shaft 60 can be operated by an operator from the front Y1 of the liquid dispensing device 11 via the insertion hole 40. According to this structure, by opening the cover 16, the operator can operate the moving part 50 from the front Y1 of the liquid dispensing device 11 via the insertion hole 40. Furthermore, even when the moving part 50 is being operated, although the insertion hole 40 is formed on the media support 15, the intrusion of foreign matter into the interior of the liquid dispensing device 11 can be suppressed by the media support 15.

[0098] (1-5) The operating shaft 60 can engage with the moving part 50 by being pressed in from the front Y1 to the rear Y2. According to this structure, by having an operator press the operating shaft 60 in from the front Y1 to the rear Y2, the operator can operate the moving part 50 from the front Y1 of the liquid dispensing device 11. Furthermore, operator error can be suppressed. Therefore, operator convenience is improved. In addition, when the moving part 50 is not operated, the power load on the moving part 50 can be reduced.

[0099] (1-6) The liquid dispensing device 11 includes a first moving part 51 and a second moving part 52. The first moving part 51 moves the suction cap 34 along the vertical direction Z to a first pressing position and a first separation position, and the second moving part 52 moves the moisturizing cap 32 along the vertical direction Z to a second pressing position and a second separation position. The first moving part 51 and the second moving part 52 can be operated by an operator from the front Y1 of the liquid dispensing device 11. According to this structure, it is not necessary to ensure working space on the side of the liquid dispensing device 11, so the operator can operate both the first moving part 51 and the second moving part 52 from the front Y1 of the liquid dispensing device 11. Therefore, the convenience of the operator is improved.

[0100] (1-7) The wiping part 36 is located on the side closer to the second width direction X2 compared to the cover in the width direction X. According to this structure, even when the wiping part 36 is located on the side closer to the second width direction X2 compared to the cover in the width direction X, the operator can still operate the moving part 50 from the front Y1 of the liquid dispensing device 11. Therefore, the convenience of the operator can be improved.

[0101] Second Implementation Method

[0102] Next, the second embodiment will be described. In the following description, structures that are the same as those in the previously described embodiments will be omitted or simplified, while structures that are different from those in the previously described embodiments will be described.

[0103] like Figure 9 As shown, in the second embodiment, the liquid dispensing device 11 may also have one or more handles 49. The handle 49 is held in a state where it is inserted into the insertion hole 40. The handle 49 can be operated by an operator. The handle 49 can be rotated while it is inserted into the insertion hole 40.

[0104] The handle 49 is provided to extend in the longitudinal direction Y. The handle 49 is configured such that its rear end in the rear Y2 engages with the operating shaft 60. More specifically, the handle 49 is configured such that its rear end in the rear Y2 engages with the drive unit 64. Alternatively, the handle 49 may be configured such that its rear end in the rear Y2 engages with the drive unit 64 via the insertion hole 40 and the guide tube 46. The handle 49 may also be configured to be movable in the longitudinal direction Y. Thus, the operating shaft 60 can be operated by the operator by rotating the handle 49. When the cover 16 is mounted on the media support 15, the handle 49 is covered by the cover 16. Alternatively, the handle 49 may be directly connected to the shaft 63.

[0105] The liquid dispensing device 11 may also include a first handle 49A and a second handle 49B, so as to have one or more handles 49. The first handle 49A is a component for operating the first moving part 51 by rotating the first operating shaft 61. The second handle 49B is a component for operating the second moving part 52 by rotating the second operating shaft 62.

[0106] The function and effects of the second embodiment

[0107] The function and effects of the second embodiment will be explained.

[0108] (2-1) The handle 49 can be rotated while being inserted into the insertion hole 40. The operating shaft 60 can be operated by a worker by rotating the handle 49. When the cover 16 is mounted on the medium support 15, the handle 49 is covered by the cover 16. According to this structure, by opening the cover 16, the worker can operate the moving part 50 from the front Y1 of the liquid dispensing device 11 via the insertion hole 40 and using the handle 49. Thus, the moving part 50 can be operated without using any tool other than the handle 49. Therefore, the convenience of the operator is improved.

[0109] Change Example

[0110] This embodiment can be modified and implemented in the following ways. This embodiment and the following modifications can be combined with each other within the scope of technical inconsistency.

[0111] ●The cover 16 can also be provided in a manner that allows it to be opened and closed while supported by the medium support 15. The cover 16 can also be provided in a manner that allows it to be opened and closed by rotating relative to the medium support 15. The cover 16 can also be provided in a manner that allows it to be opened and closed by sliding relative to the medium support 15 in a predetermined direction.

[0112] ●Although the operating area 17 is located in the area of ​​the front surface 15A of the media support portion 15 where the outlet 14 is not provided in the width direction X, it can also be located in the area where the outlet 14 is provided in the width direction X. Alternatively, the operating area 17 may not be located on the media support portion 15, but in another area such as the front surface 12A of the frame 12. Thus, the operating area 17 only needs to be located in an area accessible to workers from the front surface 12A side.

[0113] ●The maintenance area 30 may also be located at a position X1 in the first width direction relative to the center of the liquid dispensing device 11. That is, the maintenance area 30 may also be located at a position X1 in the first width direction relative to the printing area 20.

[0114] ●Alternatively, the moving part 50 may have a bevel gear 75, while the power transmission part 70 may not have a bevel gear 75. The moving part 50, the operating shaft 60, and the power transmission part 70 may also be configured to rotate around the same center. In this case, the moving part 50 and the power transmission part 70 may also not have a bevel gear 75.

[0115] ●The lifting drive source may not be a drive source that rotates the rotation shaft 55A, but rather a drive source that rotates any one of the drive shaft 53A and the rotation shafts 73A and 74A. The lifting drive source may also be a drive source that rotates a rotation shaft other than the drive shaft 53A and the rotation shafts 55A, 73A, and 74A. The moving part 50 may also be equipped with a lifting drive source.

[0116] ●The maintenance unit 31 may also be provided with a moisturizing cover 32, a rinsing unit 33, a suction cover 34, a degassing unit 35, and a wiping unit 36 ​​in any order in the maintenance area 30 facing the second width direction X2. The maintenance unit 31 may also be without any one of the moisturizing cover 32, rinsing unit 33, suction cover 34, degassing unit 35, and wiping unit 36.

[0117] ●The medium can also be paper, resin film or sheet, resin and metal composite film, laminated film, fabric, non-woven fabric, metal foil, metal film, ceramic sheet, and clothing, etc.

[0118] ■The liquid can be selected arbitrarily as long as it is a substance that can be printed on a medium by adhering to it. For example, ink may also include substances that are composed of functional material particles such as pigments or metal particles dissolved, dispersed or mixed in a solvent, including various compositions such as water-based inks, oil-based inks, gel inks, and hot-melt inks.

[0119] ■The expression "at least one" as used in this specification means one or more of the desired options. As an example, "at least one" as used in this specification means that if there are two options, it refers to only one option or both of the two options. As another example, "at least one" as used in this specification means that if there are three or more options, it refers to only one option or any combination of two or more options.

[0120] Postscript

[0121] The following describes the technical concept and its effects based on the above-described embodiments and modifications. This technical concept and its effects can be combined with each other within a technically compatible framework.

[0122] [1] The liquid ejection device comprises: a head having a nozzle surface with a plurality of nozzles for ejecting liquid; a carriage that moves along a first direction intersecting the vertical direction while the head is supported; a cover that covers the nozzle surface; and a moving part that moves the cover along the vertical direction to a capping position and a separation position, wherein the capping position is the position where the cover covers the nozzle surface, and the separation position is the position where the cover is separated from the nozzle surface, and the moving part can be operated by an operator from the front, wherein the front is a direction along a second direction intersecting the vertical direction and the first direction.

[0123] This structure eliminates the need for working space on the side of the liquid dispensing device, allowing operators to access the moving part from the front. This improves operator convenience.

[0124] [2] The liquid ejection device described above may also be configured to have an operating shaft that extends along the second direction, and the operating shaft can be operated by an operator from the front and can engage with the moving part.

[0125] According to this structure, even when the moving part is positioned separately from the front of the liquid dispensing device, the operator can operate the moving part from the front of the liquid dispensing device by using an operating shaft extending along the second direction. Therefore, operator convenience is improved.

[0126] [3] The above-mentioned liquid ejection device may also be configured to include: a medium support portion that supports the medium from which liquid is ejected from the head; a cover that covers a portion of the medium support portion, and the operating shaft can be operated by an operator by opening the cover.

[0127] According to this structure, by opening the cover, the operator can operate the moving part from the front of the liquid dispensing device. Furthermore, by not opening the cover when not operating the moving part, the appearance of the liquid dispensing device can be improved, and the intrusion of foreign matter into the liquid dispensing device can be suppressed.

[0128] [4] In the above-mentioned liquid ejection device, the medium support part may also be provided with an insertion hole, the insertion hole being covered by the cover, and the operating shaft can be operated by the operator from the front through the insertion hole.

[0129] According to this structure, by opening the cover, the operator can operate the moving part from the front of the liquid dispensing device through the insertion hole. Furthermore, even when operating the moving part, although the insertion hole is formed on the medium support, the intrusion of foreign matter into the interior of the liquid dispensing device can be suppressed through the medium support.

[0130] [5] The above-mentioned liquid ejection device may also be configured to have a handle, which engages with the operating shaft, the medium support portion having an insertion hole, the handle being able to rotate while being inserted into the insertion hole, the handle being covered by the cover, and the operating shaft being able to be operated by the operator by rotating the handle.

[0131] According to this structure, by opening the cover, the operator can operate the moving part 50 from the front of the liquid dispensing device via the insertion hole and using the handle. This allows operation of the moving part without the use of tools other than the handle, thus improving operator convenience. Furthermore, even when operating the moving part, although the insertion hole is formed in the medium support, the intrusion of foreign matter into the liquid dispensing device can be suppressed through the medium support.

[0132] [6] In the above-mentioned liquid ejection device, the operating shaft can also be configured to engage with the moving part by pressing it from the front to the rear.

[0133] According to this structure, by having an operator press the operating shaft from front to rear, the operator can operate the moving part from the front of the liquid dispensing device. This improves operator convenience. Furthermore, when the moving part is not being operated, the power load on it is reduced.

[0134] [7] In the above-mentioned liquid ejection device, the cover may also be configured as a suction cover that draws liquid from the head while covering the nozzle surface.

[0135] Based on this structure, the same effect as [1] can be achieved.

[0136] [8] In the above-mentioned liquid spraying device, the cover may also be a moisturizing cover that moisturizes the head by covering the nozzle surface.

[0137] Based on this structure, the same effect as [1] can be achieved.

[0138] [9] In the above-described liquid ejection device, the cover may also be configured to have: a suction cover that draws liquid from the head while covering the nozzle surface; and a moisturizing cover that moisturizes the head by covering the nozzle surface. The moving part may have: a first moving part that moves the suction cover along the vertical direction to a first pressing position and a first separation position, wherein the first pressing position is the position where the suction cover covers the nozzle surface, and the first separation position is the position where the suction cover is separated from the nozzle surface; and a second moving part that moves the moisturizing cover along the vertical direction to a second pressing position and a second separation position, wherein the second pressing position is the position where the moisturizing cover covers the nozzle surface, and the second separation position is the position where the moisturizing cover is separated from the nozzle surface. The first moving part and the second moving part may be operated by an operator from the front.

[0139] This structure eliminates the need for working space on the side of the liquid dispensing device, allowing operators to access both the first and second moving parts from the front. This improves operator convenience.

[0140]

[10] The above-mentioned liquid ejection device may also be configured to include a wiping part, which wipes the nozzle surface and is located on the outer side of the cover in the first direction.

[0141] According to this structure, even when the wiping part is located further outward than the cover in the first direction, the operator can still operate the moving part that moves the cover from the front of the liquid dispensing device. Therefore, the convenience for the operator is improved.

[0142] Symbol Explanation

[0143] 11…Liquid ejection device; 12…Frame; 12A…Front surface; 12B…Top surface; 12C…First side surface; 12D…Second side surface; 13…Operation panel; 14…Outlet; 15…Media support; 15A…Front surface; 15B…Back surface; 16…Cover; 17…Operation area; 20…Printing area; 21…Liquid ejection part; 22…Support part; 23…Head; 23A…Nozzle surface; 24…Slide carriage; 25…Slide carriage guide; 30…Maintenance area; 31…Maintenance part; 32…Moisturizing cover; 33…Rinsing part; 34…Suction cover; 35…Degassing part; 36…Wiping part; 40…Intercepting hole; 41…First intercepting hole; 42…Second intercepting hole; 43…Operation display part; 44…First operation display part; 45…Second operation display part; 46…Guide tube; 47…First guide tube; 48…Second guide tube; 49…Handle; 49A…First handle; 49B…Second handle; 50…Moving part; 51…First moving part; 52…Second moving part; 53…Drive gear; 53A…Drive shaft; 54…Gear; 55…Gear; 55A…Rotating shaft; 60…Operating shaft; 61…First operating shaft; 62…Second operating shaft; 63…Shaft; 64…Drive part; 65…Guide part; 66…Operating gear; 70…Power transmission part; 71…First power transmission part; 72…Second power transmission part; 73…Gear; 73A…Rotating shaft; 74…Gear; 74A…Rotating shaft; 75…Bevel gear; P1…Initial position; P2…Transmission position; X…Width direction; X1…First width direction; X2…Second width direction; Y…Front-back direction; Y1…Front; Y2…Rear; Z…Vertical direction; Z1…Above; Z2…Below.

Claims

1. A liquid discharge apparatus characterized by comprising: Possessing: a head having a nozzle face with a plurality of nozzles that eject liquid; a carriage that moves along a first direction that intersects with a vertical direction while supporting the head; a cover that covers the nozzle face; a moving section that moves the cover along the vertical direction to a cover position where the cover covers the nozzle face and a separation position where the cover is separated from the nozzle face, the moving section is operable by a worker from a front direction that is a direction along a second direction that intersects with the vertical direction and the first direction.

2. The liquid ejecting apparatus according to claim 1, wherein an operation shaft that extends along the second direction is provided, the operation shaft is operable by the worker from the front direction and is engageable with the moving section.

3. The liquid ejection device of claim 2, wherein, Possessing: a medium support section that supports a medium from which liquid is ejected by the head; a cover that covers a portion of the medium support section, the operation shaft is operable by the worker by opening the cover.

4. The liquid ejecting apparatus according to claim 3, wherein the medium support section has an insertion hole, the insertion hole is covered by the cover, the operation shaft is operable by the worker from the front direction through the insertion hole.

5. The liquid ejecting apparatus according to claim 3, wherein a handle that engages with the operation shaft is provided, the medium support section has an insertion hole, the handle is rotatable in a state of being inserted into the insertion hole, the handle is covered by the cover, the operation shaft is operable by the worker by rotating the handle.

6. The liquid ejecting apparatus according to claim 2, wherein the operation shaft is engageable with the moving section by being pressed from the front direction to the rear direction.

7. The liquid ejecting apparatus according to any one of claims 1 to 6, wherein the cover is a suction cover that suctions liquid from the head in a state of covering the nozzle face.

8. The liquid ejecting apparatus according to any one of claims 1 to 6, wherein the cover is a moisturizing cover that moisturizes the head by covering the nozzle face.

9. The liquid ejecting apparatus according to any one of claims 1 to 6, wherein the cover has: a suction cover that suctions liquid from the head in a state of covering the nozzle face; a moisturizing cover that moisturizes the head by covering the nozzle face, the moving section has: a first moving section that moves the suction cover along the vertical direction to a first cover position where the suction cover covers the nozzle face and a first separation position where the suction cover is separated from the nozzle face; a second moving section that moves the moisturizing cover along the vertical direction to a second cover position in which the moisturizing cover covers the nozzle surface and a second separation position in which the moisturizing cover is separated from the nozzle surface, The first moving section and the second moving section are operable by a worker from the front.

10. The liquid discharge apparatus according to any one of claims 1 to 6, wherein a wiping section that wipes the nozzle surface is provided, The wiping section is located outward of the cover in the first direction.

Images