Liquid ejecting device

Abstract

The present invention relates to a liquid ejection device. In a configuration where a wiping member moves in a direction along the ink ejection surface of an ink head, it is necessary to ensure a moving area for the wiping member even outside the ink ejection area, and thus the device tends to be enlarged in the moving direction of the wiping member. The liquid ejection device includes: a liquid head that ejects a liquid onto a medium; a wiping mechanism that wipes the liquid ejection surface of the liquid head and has a wiper unit that wipes the liquid ejection surface by moving in a direction along the liquid ejection surface; an electrical component unit that is a part related to the control of the device and includes a substrate; and a power supply unit that is a power supply source. The moving direction of the wiper unit is a direction crossing the surface of the substrate, and in the moving direction of the wiper unit, at least a part of the electrical component unit, at least a part of the power supply unit, and a part of the wiping mechanism overlap.

Description

Technical Field

[0001] The present invention relates to a liquid ejection device that ejects liquid onto a medium. Background Art

[0002] In an inkjet printer, which is an example of a liquid ejection device, a wiping mechanism for wiping the ink ejection surface of an ink head is provided. In the inkjet printer described in Patent Document 1, a wiper is referred to as a wiping member, and the wiping member is provided in a wiping unit. The wiping unit obtains power from a motor to move in a direction along the ink ejection surface of the ink head, and wipes the ink ejection surface of the ink head during this movement.

[0003] A cover is provided on the back surface of the inkjet printer, and by opening this cover, the wiping member can be accessed. The wiping member is fixed to the wiping unit with screws, and by removing the screws, the wiping member can be taken out of the device.

[0004] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2016 - 175275.

[0005] As described above, in a configuration where the wiping member moves in a direction along the ink ejection surface of the ink head, it is necessary to ensure a movement area for the wiping member even outside the ink ejection area. Therefore, the device tends to be large in the moving direction of the wiping member. Summary of the Invention

[0006] The liquid ejection device of the present invention for solving the above - mentioned technical problems is characterized by including: a liquid head that ejects liquid onto a medium; a wiping mechanism that wipes the liquid ejection surface of the liquid head and has a wiper part that wipes the liquid ejection surface by moving in a direction along the liquid ejection surface; an electrical component part that is a part related to the control of the device and includes a substrate; and a power supply part that is a power supply source. The moving direction of the wiper part is a direction crossing the surface of the substrate. In the moving direction of the wiper part, at least a part of the electrical component part overlaps at least a part of the power supply part, and in the moving direction of the wiper part, at least a part of the electrical component part and at least a part of the power supply part overlap with a part of the wiping mechanism. Brief Description of the Drawings

[0007] Figure 1 A diagram showing a medium conveyance path in a printer.

[0008] Figure 2 A diagram showing the positional relationship of a head unit, a cover carriage, and a wiper carriage.

[0009] Figure 3 A perspective view showing the back surface, which is one of the sides, of a printer.

[0010] Figure 4 A perspective view showing the state where the back cover and side covers are removed from the Figure 3 state.

[0011] Figure 5 A perspective view showing the state where the electrical component unit and power supply unit are opened from the Figure 4 state.

[0012] Figure 6 A perspective view of the main body connection part.

[0013] Figure 7 A diagram briefly showing the positional relationship of each component part when observing the back side of the device from the front.

[0014] Figure 8 A diagram briefly showing the positional relationship of each component part when observing the device from above.

[0015] Figure 9 A diagram showing the media conveyance path in a printer according to another embodiment.

[0016] Figure 10 A diagram briefly showing the positional relationship of each component part when observing a printer according to another embodiment from above.

[0017] Figure 11 A diagram briefly showing the positional relationship of each component part when observing a printer according to another embodiment from the +X direction.

[0018] Explanation of reference numerals

[0019] 1, 1A: Inkjet printer; 2: Device main body; 2b: Recess; 3: First media cassette; 4: Second media cassette; 5: Ink storage section; 6: Belt unit; 7: Conveyor belt; 8a, 8b: Pulleys; 9, 10: Pickup rollers; 11, 12: Feed roller pair; 13, 14, 15, 16, 17, 18, 19, 20, 21, 22: Conveyor roller pair; 23, 24: Baffles; 25A, 25B: Rear covers; 26: Side covers; 27: Head lift motor; 29: Operation panel; 30: Scanner unit; 31: Cover carriage; 32: Cover; 33: Head unit; 34: Line head; 35: Ink ejection surface; 36: Main body connection part; 37: Additional unit; 37a: Unit connection part; 38: Discharge tray; 40: Cleaning mechanism; 41: Wiper part; 42: Wiper; 43: Connection unit; 46: Wiper drive motor; 50: Electrical unit; 50a: Notch; 51, 52: Hinge parts; 53: Main substrate; 54: Substrate; 56: Communication unit; 60: Power supply unit; 61: Inlet unit; 61a: Inlet; 62: Support frame; 63, 64: Hinge parts; 65: Power supply substrate; 70: High voltage unit; 71: High voltage substrate; 73: Ink supply unit; 74: Ink storage section; 74a, 74b, 74c, 74d: Ink cartridges; 75: Mounting part; 76: Liquid storage tank; 77: Maintenance box; 79: Maintenance unit; 80: Conveying unit; 81: Cover unit; 82: Ink pipe; 90: Front frame; 91: Rear frame. Detailed implementation mode

[0020] The present invention will be briefly described below.

[0021] The liquid ejection device according to the first mode is characterized by including: a liquid ejector that ejects liquid onto a medium; a cleaning mechanism that cleans the liquid ejection surface of the liquid ejector and has a wiper part that moves in a direction along the liquid ejection surface to clean the liquid ejection surface; an electrical component part that is a part related to the control of the device and includes a substrate; and a power supply part that is a power supply source. The moving direction of the wiper part is a direction intersecting the surface of the substrate. In the moving direction of the wiper part, at least a part of the electrical component part overlaps at least a part of the power supply part, and in the moving direction of the wiper part, at least a part of the electrical component part and at least a part of the power supply part overlap with a part of the cleaning mechanism.

[0022] According to this mode, since at least a part of the electrical component part overlaps at least a part of the power supply part in the moving direction of the wiper part, and at least a part of the electrical component part and at least a part of the power supply part overlap with a part of the cleaning mechanism, it is possible to suppress the device size in the moving direction of the wiper part and achieve miniaturization of the device.

[0023] The second mode is characterized in that, in the first mode, the wiper unit can move to the original position and the wiping area for wiping the liquid ejection surface. When the wiper unit is located at the original position, at least a part of the electrical component unit overlaps at least a part of the wiper unit in the moving direction of the wiper unit, or at least a part of the power supply unit overlaps at least a part of the wiper unit in the moving direction of the wiper unit, or at least a part of the electrical component unit and at least a part of the power supply unit overlap at least a part of the wiper unit in the moving direction of the wiper unit.

[0024] According to this mode, in the following configuration, the effects of the above first mode can be obtained. The configuration is that when the wiper unit is located at the original position, at least a part of the electrical component unit overlaps at least a part of the wiper unit in the moving direction of the wiper unit, or at least a part of the power supply unit overlaps at least a part of the wiper unit in the moving direction of the wiper unit, or at least a part of the electrical component unit and at least a part of the power supply unit overlap at least a part of the wiper unit in the moving direction of the wiper unit.

[0025] The third mode is characterized in that, in the first or second mode, the moving direction of the wiper unit is the device depth direction.

[0026] According to this mode, since the moving direction of the wiper unit is the device depth direction, the device size in the device depth direction can be suppressed.

[0027] The fourth mode is characterized in that, in the third mode, the back cover forming the back surface of the device is provided to be detachable or openable with respect to the device main body. By detaching or opening the back cover, the electrical component unit and the power supply unit are exposed.

[0028] According to this mode, since the back cover forming the back surface of the device is provided to be detachable or openable with respect to the device main body and the electrical component unit and the power supply unit are exposed by detaching or opening the back cover, the maintainability of the electrical component unit and the power supply unit is improved.

[0029] The fifth mode is characterized in that, in the fourth mode, the electrical component unit and the power supply unit are provided to be openable and closable with respect to the device main body.

[0030] According to this mode, since the electrical component unit and the power supply unit are provided to be openable and closable with respect to the device main body, compared with the configuration of detaching the electrical component unit or the power supply unit, the storage space for the electrical component unit or the power supply unit is not required during maintenance work, and the workability during maintenance is improved.

[0031] The sixth mode is characterized in that in any one of the first to fifth modes, there are provided: a conveyor belt for conveying a medium, which is arranged at a position facing the liquid spray head; and a high-voltage part, which is a part for controlling the electrification of the conveyor belt and processes a voltage higher than that of the electrical component part. In the moving direction of the wiper part, at least a part of the high-voltage part overlaps with a part of the wiping mechanism.

[0032] According to this mode, since at least a part of the high-voltage part overlaps with a part of the wiping mechanism in the moving direction of the wiper part, the device size in the moving direction of the wiper part can be suppressed, and miniaturization of the device can be achieved.

[0033] The seventh mode is characterized in that in any one of the first to sixth modes, the electrical component part is provided with a communication part for communicating with an external device.

[0034] According to this mode, in the configuration where the electrical component part is provided with a communication part for communicating with an external device, the effects of any one of the first to sixth modes can be obtained.

[0035] The eighth mode is characterized in that in any one of the first to seventh modes, there is provided a wiper drive motor as a power source for the movement of the wiper part. When observed from the moving direction of the wiper part, a notch part is formed in the electrical component part, and the wiper drive motor is arranged in the notch part.

[0036] According to this mode, since a notch part is formed in the electrical component part when observed from the moving direction of the wiper part and the wiper drive motor is arranged in the notch part, the enlargement of the device due to the arrangement of the wiper drive motor can be suppressed.

[0037] The ninth mode is characterized in that in any one of the first to eighth modes, there are provided: a conveying unit for conveying a medium; and a waste liquid recovery part for recovering the waste liquid ejected from the liquid spray head.

[0038] According to this mode, in the configuration where there is a conveying unit for conveying a medium and a waste liquid recovery part for recovering the waste liquid ejected from the liquid spray head, the effects of any one of the first to eighth modes can be obtained.

[0039] The tenth mode is characterized in that in the ninth mode, in the moving direction of the wiper part, at least a part of the conveying unit overlaps with at least a part of the waste liquid recovery part.

[0040] According to this mode, since at least a part of the conveying unit and at least a part of the waste liquid recovery unit overlap in the moving direction of the wiper unit, the device size in the moving direction of the wiper unit can be suppressed, and miniaturization of the device can be achieved.

[0041] An eleventh mode is characterized in that in the ninth or tenth mode, there is provided a mounting portion for detachably mounting a liquid storage container that stores the liquid supplied to the liquid ejector head, and in the moving direction of the wiper unit, the entire mounting portion and the entire waste liquid recovery unit are within the range of the conveying unit.

[0042] According to this mode, since the entire mounting portion and the entire waste liquid recovery unit are within the range of the conveying unit in the moving direction of the wiper unit, the device size in the moving direction of the wiper unit can be suppressed, and miniaturization of the device can be achieved.

[0043] A twelfth mode is characterized in that in the ninth or tenth mode, there is provided a liquid supply unit that supplies liquid to the liquid ejector head, and the liquid supply unit has: a mounting portion for detachably mounting a liquid storage container that stores the liquid supplied to the liquid ejector head; and a liquid storage portion that is a portion located between the liquid storage container and the liquid ejector head in the flow path of the liquid and stores the liquid supplied from the liquid storage container. In the moving direction of the wiper unit, at least a part of the liquid supply unit and at least a part of the waste liquid recovery unit overlap with at least a part of the conveying unit, and the liquid supply unit and the waste liquid recovery unit are arranged along the moving direction of the wiper unit.

[0044] According to this mode, since at least a part of the liquid supply unit and at least a part of the waste liquid recovery unit overlap with at least a part of the conveying unit in the moving direction of the wiper unit, the device size in the moving direction of the wiper unit can be suppressed, and miniaturization of the device can be achieved.

[0045] Moreover, since the liquid supply unit and the waste liquid recovery unit are arranged along the moving direction of the wiper unit, the device size in the direction crossing the moving direction of the wiper unit can be suppressed, and miniaturization of the device can be achieved.

[0046] A thirteenth mode is characterized in that in any one of the ninth to twelfth modes, there is provided a pair of frames that support the conveying unit and are arranged opposite to each other with the conveying unit interposed therebetween in the moving direction of the wiper unit, and the entire waste liquid recovery unit is provided inside the pair of frames.

[0047] According to this embodiment, since the entire waste liquid recovery unit is provided inside the pair of frames, there is no need to provide holes in the pair of frames for the waste liquid recovery unit to pass through, and it is possible to avoid a reduction in the rigidity of the pair of frames.

[0048] A fourteenth embodiment is characterized in that in any one of the first to eighth embodiments, it includes: a conveying unit that conveys a medium; and a liquid supply unit that supplies liquid to the liquid nozzle. The liquid supply unit has: a mounting portion capable of detaching and attaching a liquid storage container that stores the liquid supplied to the liquid nozzle; and a liquid storage portion that is located between the liquid storage container and the liquid nozzle in the flow path of the liquid and stores the liquid supplied from the liquid storage container. In the moving direction of the wiper unit, at least a part of the conveying unit overlaps with at least a part of the liquid supply unit.

[0049] According to this embodiment, since at least a part of the conveying unit overlaps with at least a part of the liquid supply unit in the moving direction of the wiper unit, it is possible to suppress the device size in the moving direction of the wiper unit and achieve miniaturization of the device.

[0050] The present invention will be specifically described below.

[0051] Hereinafter, the inkjet printer 1 will be described as an example of a liquid ejecting device. The inkjet printer 1 performs recording by ejecting a liquid represented by ink onto a medium represented by a recording sheet. Hereinafter, the inkjet printer 1 will be simply referred to as the printer 1.

[0052] The X - Y - Z coordinate system shown in each figure is an orthogonal coordinate system. The Y - axis direction is the width direction intersecting the conveying direction of the medium, the device depth direction, and also the moving direction of the wiper unit 41 described later. The direction of the arrow in the Y - axis direction, that is, the +Y direction, is the direction from the front surface of the device toward the back surface of the device, and the -Y direction opposite to the +Y direction is the direction from the back surface of the device toward the front surface of the device.

[0053] In addition, the X - axis direction is the device width direction. When observed from the operator of the printer 1, the direction of the arrow, that is, the +X direction, becomes the left side, and the opposite -X direction becomes the right side. The Z - axis direction is the vertical direction, that is, the device height direction. The direction of the arrow, that is, the +Z direction, becomes the upper side, and the opposite -Z direction becomes the lower side. Hereinafter, when using the term "upper", it means the +Z direction, and when using the term "lower", it means the -Z direction.

[0054] In addition, the G-axis direction is the normal direction with respect to the ink ejection surface 35 of the line head 34 described later. The direction of the arrow, that is, the +G direction, is the direction in which the head unit 33 described later separates from the conveyor belt 7, and the opposite -G direction is the direction in which the head unit 33 approaches the conveyor belt 7.

[0055] In addition, the F-axis direction is the direction parallel to the ink ejection surface 35 and is the medium conveyance direction at the position opposed to the ink ejection surface 35. The direction of the arrow, that is, the +F direction, becomes the downstream of the conveyance direction, and the opposite -F direction becomes the upstream of the conveyance direction. It should be noted that hereinafter, the direction in which the medium is sent may sometimes be referred to as "downstream", and the opposite direction may be referred to as "upstream". In addition, the F-axis direction becomes the moving direction of the cover carriage 31 described later.

[0056] In addition, in some of the drawings, the F-G-Y coordinate system is used instead of the X-Y-Z coordinate system.

[0057] In Figure 1 the medium conveyance path is shown by a dashed line. The medium is conveyed in the printer 1 through the medium conveyance path shown by the dashed line.

[0058] The apparatus main body 2 of the printer 1 includes a first medium cassette 3 and a second medium cassette 4 for storing the medium before feeding. The reference numeral P indicates the medium stored in each medium cassette. The first medium cassette 3 and the second medium cassette 4 are provided so as to be detachable from the front side of the apparatus with respect to the apparatus main body 2.

[0059] A pickup roller 9 for sending out the stored medium is provided for the first medium cassette 3, and a pickup roller 10 for sending out the stored medium is provided for the second medium cassette 4.

[0060] In addition, a pair of feed rollers 11 for feeding the sent-out medium obliquely upward is provided for the first medium cassette 3. In addition, a pair of feed rollers 12 for feeding the sent-out medium obliquely upward and a pair of conveying rollers 13 for conveying the medium upward are provided for the second medium cassette 4.

[0061] It should be noted that hereinafter, unless otherwise specified, a "pair of rollers" is composed of a driving roller driven by a motor (not shown) and a driven roller that is in contact with the driving roller and rotates in a driven manner.

[0062] The medium sent out from each medium cassette is sent to the pair of conveying rollers 16 by the pair of conveying rollers 14 and the pair of conveying rollers 15. The medium receiving the conveying force from the pair of conveying rollers 16 is sent between the line head 34 and the conveyor belt 7, that is, to the position opposed to the line head 34.

[0063] The line head 34 ejects ink onto the surface of the medium to perform recording. The line head 34 is an ink jet head configured such that nozzles (not shown) for ejecting ink cover the entire range in the width direction of the medium, and is an ink jet head configured to be able to record over the entire width of the medium without moving in the width direction of the medium. The line head 34 is an example of a liquid jet head that ejects liquid.

[0064] Reference numeral 5 denotes an ink storage section that stores ink. The ink ejected from the line head 34 is supplied from the ink storage section 5 to the line head 34 through a tube (not shown). The ink storage section 5 is composed of a plurality of ink cartridges arranged in the X-axis direction.

[0065] The conveyor belt 7, pulleys 8a, 8b constitute a belt unit 6. The conveyor belt 7 is an endless belt wound around the pulleys 8a and 8b arranged in the medium conveyance direction. The conveyor belt 7 is rotated by a motor (not shown) through at least one of the pulleys 8a and 8b.

[0066] The medium is conveyed at a position opposed to the line head 34 while being adsorbed on the belt surface of the conveyor belt 7.

[0067] The conveyor belt 7 is an endless belt containing a conductive material in a base material made of polyurethane, rubber, etc., and is given a predetermined tension by a tensioner (not shown).

[0068] An unillustrated charging roller is provided at a position opposed to the pulley 8a with the conveyor belt 7 interposed therebetween. The charging roller is in contact with the outer surface of the conveyor belt 7 and rotates idly corresponding to the rotation of the conveyor belt 7. A DC voltage is applied to the charging roller from a high voltage unit 70 (see Figure 4 ), whereby the charging roller supplies electric charges to the portion in contact with the conveyor belt 7. For example, the charging roller supplies positive charges to the conveyor belt 7 and makes the outer surface of the conveyor belt 7 positively charged. Thus, the outer surface of the conveyor belt 7 becomes an adsorption surface for adsorbing the medium.

[0069] The medium conveyance path passing through the position opposed to the line head 34 is configured to cross both the horizontal direction and the vertical direction and convey the medium obliquely upward. This obliquely upward conveyance direction is Figure 1 a direction including an -X direction component and a +Z direction component in

[0070] Note that, in the present embodiment, the inclination angle of the medium conveyance path passing through the position opposed to the line head 34 is set in the range of 50° to 70° with respect to the horizontal direction, and more specifically, is set to an inclination angle of 60°.

[0071] The medium on which recording has been performed on the first surface by the line head 34 is further sent obliquely upward by a conveying roller pair 17 located downstream of the conveyor belt 7.

[0072] A baffle 23 is provided downstream of the conveying roller pair 17, and the conveying direction of the medium is switched by this baffle 23. In the case of directly discharging the medium, the conveying path of the medium is switched from the baffle 23 to the upward conveying roller pair 20. A baffle 24 is also provided downstream of the conveying roller pair 20, and the conveying path is switched by this baffle 24 to determine whether to discharge from the discharge position A1 or further convey to the conveying roller pair 21 located directly above. When the medium is sent to the conveying roller pair 21, it is discharged from the discharge position A2.

[0073] The medium discharged from the discharge position A1 is received by a discharge tray 38 that is inclined obliquely upward including a +X direction component and a +Z direction component. The medium discharged from the discharge position A2 is received by a selection tray (not shown).

[0074] In the case of recording on the second side in addition to the first side of the medium, the medium is sent obliquely upward including a -X direction component and a +Z direction component through the baffle 23, and passes through the branch position K1 and is sent from the branch position K1 to the upper turning path. A conveying roller pair 22 is provided in this turning path, and the medium that has entered the turning path is conveyed upward by the conveying roller pair 22, and then if the rear end of the medium passes through the branch position K1, the rotation direction of the conveying roller pair 22 is switched, whereby the medium is conveyed downward.

[0075] The medium conveyed downward by the conveying roller pair 22 receives the conveying force from the conveying roller pair 18, the conveying roller pair 19, and the conveying roller pair 15 and reaches the conveying roller pair 16, and is sent again to the position facing the line head 34 by the conveying roller pair 16.

[0076] The medium that is sent again to the position facing the line head 34 faces the line head 34 with the second side on the side opposite to the first side on which recording has already been performed. Thus, the second side of the medium can be recorded by the line head 34. The medium on which recording has been performed on the second side is discharged from the above-mentioned discharge position A1 or discharge position A2.

[0077] Next, with reference to Figure 2 The relationship among the head unit 33, the cover carriage 31, and the wiper unit 41 will be described.

[0078] The head unit 33 is a unit including the line head 34, and is provided so as to be drivable in the G-axis direction by a head lifting motor 27 (refer to Figure 4 ).

[0079] The cover carriage 31 is an example of a cover unit having a cover 32 that covers the line head 34, and is provided so as to be drivable in the F-axis direction by a motor (not shown).

[0080] The wiper unit 41 is a unit provided with a wiper 42 for wiping the ink ejection surface 35 of the line head 34, and is arranged to be movable in the Y-axis direction, which is an example of the direction along the ink ejection surface 35. The wiper unit 41 is arranged to be driven in the Y-axis direction by a wiper drive motor 46 (see Figure 4 , Figure 5 ). The end position in the +Y direction in the moving area is set as the original position, and the wiper unit 41 is located at the original position except during wiping.

[0081] The wiper 42 is formed of an elastic material such as rubber or an elastomer, and can be pressed against the ink ejection surface 35 by its elasticity.

[0082] Based on the above, the head unit 33, the cover carriage 31, and the wiper unit 41 are arranged to be driven by respective motors in directions orthogonal to each other.

[0083] Figure 2 The positions of the respective units when recording on the medium by the line head 34 are shown. The position G1 is the position of the ink ejection surface 35 in the G-axis direction in this state. In this state, the cover carriage 31 is in a position retracted to the -F direction with respect to the head unit 33, and the wiper unit 41 is located at the original position set in the +Y direction.

[0084] When covering the ink ejection surface 35 from this state using the cover 32 provided on the cover carriage 31, the head unit 33 moves from the Figure 2 position in the +G direction, and the cover carriage 31 moves in the +F direction. As a result, the ink ejection surface 35 faces the cover 32. When the ink ejection surface 35 faces the cover 32, the head unit 33 moves in the -G direction, and thus the cover 32 covers the ink ejection surface 35. The position G2 is the position of the ink ejection surface 35 in the G-axis direction when the cover 32 covers the ink ejection surface 35.

[0085] When wiping the ink ejection surface 35 using the wiper 42 provided in the wiper unit 41, the head unit 33 moves from the Figure 2 state in the +G direction. Then, the wiper unit 41 moves from the original position in the +Y direction to the end position in the -Y direction. Then, the head unit 33 moves slightly in the -G direction, and in a state where the ink ejection surface 35 is at the position G3, the wiper unit 41 moves in the +Y direction, and thus the ink ejection surface 35 is wiped using the wiper 42.

[0086] It should be noted that a connection unit 43 is arranged at the original position of the wiper unit 41 (see Figure 4 , Figure 7)。The connection unit 43 and the wiper unit 41 together constitute a wiping mechanism 40. It should be noted that the apparatus main body 2 is provided with a moving member (not shown) for moving the wiper unit 41 in the Y-axis direction. The moving member (not shown) is constituted by, for example, a guide rail.

[0087] The connection unit 43 is different from the wiper unit 41 and is provided in a fixed state. A suction pin (not shown) is provided in the connection unit 43, and once the wiper unit 41 moves to the original position, the suction pin enters a suction hole (not shown) on the side of the wiper unit 41. A storage unit (not shown) for storing ink is provided in the wiper unit 41. The suction pin is communicated with a pump (not shown), and thus, once the wiper unit 41 moves to the original position, the ink accumulated inside the wiper unit 41 can be absorbed and recovered by the above pump.

[0088] Next, Figure 3 and the following figures will be referred to for describing the electrical system provided on the back side of the apparatus.

[0089] As Figure 3 shown, a back cover 25A is provided on the back which is one of the sides of the apparatus main body 2, and in addition, a back cover 25B is provided below the back cover 25A.

[0090] In addition, a side cover 26A is provided on the +X direction side which is one of the sides of the apparatus main body 2, and in addition, a side cover 26B is provided below the side cover 26A.

[0091] The back covers 25A, 25B and the side covers 26A, 26B are part of the housing constituting the outer shell of the apparatus main body 2. It should be noted that in Figure 3 , reference numeral 30 is a scanner unit provided on the upper part of the apparatus main body 2, and reference numeral 29 is an operation panel provided on the upper part of the front surface of the apparatus main body 2.

[0092] The back covers 25A, 25B and the side covers 26A, 26B are fixed to the apparatus main body 2 by screws (not shown), and by removing the above screws, the back covers 25A, 25B and the side covers 26A, 26B can be removed from the apparatus main body 2. That is, the back covers 25A, 25B and the side covers 26A, 26B are provided so as to be detachable with respect to the apparatus main body 2.

[0093] In the back of the apparatus main body 2, a recess 2b is formed in the lower part. An inlet 61a is provided in the recess 2b, and a power cable (not shown) is connected to the inlet 61a. The inlet 61a is provided in a box-shaped inlet unit 61 (refer to Figure 4 ).

[0094] Next, Figure 4The state in which the back covers 25A and 25B and the side covers 26A and 26B are removed is shown. When the back cover 25A is removed, the electrical component unit 50 which is a part related to the control of the device, the connection unit 43 constituting the wiping mechanism 40, the wiper drive motor 46, and the head lifting motor 27 are exposed. In addition, when the back cover 25B is removed, the power supply unit 60, the high-voltage unit 70, and the main body connection portion 36 are exposed.

[0095] The electrical component unit 50 is an example of an electrical component part which is a part related to the control of the device and has a substrate. The power supply unit 60 is an example of a power supply part which is a power supply source of the device. The high-voltage unit 70 is an example of a high-voltage part which is a part for controlling the electrification of the conveyor belt 7 and processes a voltage higher than that of the electrical component unit 50.

[0096] The housing of the electrical component unit 50 is formed of a metal case, and as Figure 7 shown, it has a main substrate 53 and a sub-substrate 54 inside.

[0097] The housing of the power supply unit 60 is formed of a metal case, and as Figure 7 shown, it has a power supply substrate 65 inside.

[0098] The housing of the high-voltage unit 70 is formed of a metal case, and as Figure 7 shown, it has a high-voltage substrate 71 inside.

[0099] All of the above substrates are arranged such that the substrate surfaces are parallel to the back covers 25A and 25B, that is, parallel to the X-Z plane. That is, all the substrates are orthogonal to the moving direction of the wiper part 41, that is, the Y-axis direction. However, each substrate does not necessarily need to be orthogonal to the Y-axis direction, as long as they intersect.

[0100] It should be noted that the above-mentioned each substrate is located at the center position in the Y-axis direction or at a position closer to the -Y direction than the center position in each unit.

[0101] The main substrate 53 included in the electrical component unit 50 has a microcontroller and a memory (not shown) and is responsible for the overall control of the printer 1. The sub-substrate 54 included in the electrical component unit 50 has a drive circuit for driving each motor and is electrically connected to the main substrate 53 through a connection member (not shown).

[0102] In addition, the electrical component unit 50 includes a communication unit 56 (refer to Figure 7 ), and the communication unit 56 has various modules for performing facsimile communication and communication with an external network. The communication unit 56 is electrically connected to the main substrate 53 through a connection member (not shown).

[0103] The power supply board 65 included in the power supply unit 60 includes electronic components (not shown) that adjust the voltage of the power supplied to each component part of the printer 1, and a heat sink (not shown) that promotes heat dissipation.

[0104] In addition, the high-voltage board 71 included in the high-voltage unit 70 includes electronic components (not shown) for controlling the charging of the conveyor belt 7.

[0105] As Figure 7 shown, the main body connection part 36 exposed by removing the back cover 25B is a part for electrically connecting to the unit connection part 37a provided in the additional unit 37. The additional unit 37 can be detachably attached to the lower part of the apparatus main body 2, and includes a media cassette (not shown) and a feeding mechanism for feeding the media from the media cassette.

[0106] When viewed from the back side of the apparatus towards the front, the main body connection part 36 is arranged in the space on the left side of the inlet unit 61. Thus, by removing the back cover 25B, maintenance such as replacing the main body connection part 36 can be performed without removing other parts.

[0107] Next, returning to Figure 4 , the electrical unit 50 is rotatably provided on the apparatus main body 2 by means of hinge parts 51, 52, and opens and closes by rotation. In the present embodiment, at the +X direction end of the back side of the apparatus, two hinge parts 51, 52 are provided at intervals in the Z-axis direction. The rotation axis center of the electrical unit 50 based on the hinge parts 51, 52 is parallel to the Z-axis direction. And when the electrical unit 50 is opened from the closed state, as shown by the change from Figures 4 to 5 , when viewed from the user facing the back side of the apparatus, the electrical unit 50 opens to the right.

[0108] The closed state of the electrical unit 50 is maintained by screws (not shown).

[0109] It should be noted that the rotation axis center of the electrical unit 50 is not limited to being parallel to the Z-axis direction, and for example, it can also be set to be parallel to the X-axis direction. In addition, instead of setting the electrical unit 50 to be detachable from the apparatus main body 2, the electrical unit 50 can be set to be openable and closable with respect to the apparatus main body 2.

[0110] A support frame 62 is provided below the electrical unit 50. The support frame 62 is set to be rotatable with respect to the apparatus main body 2 by means of a hinge part 63 provided at the +X direction end, and opens and closes by rotation.

[0111] The power supply unit 60 is connected to the support frame 62 at the upper part. In the apparatus main body 2, a hinge portion 64 is provided at the +X direction end, and the power supply unit 60 is connected to the hinge portion 64. The power supply unit 60 and the support frame 62 are integrated and can rotate by means of the hinge portions 63 and 64. When the power supply unit 60 and the support frame 62 are opened from the closed state, as shown by the change from Figures 4 to 5 , when observed from a user facing the back of the apparatus, the power supply unit 60 and the support frame 62 open to the right. The center of the rotation axis of the power supply unit 60 and the support frame 62 based on the hinge portions 63 and 64 is parallel to the Z-axis direction.

[0112] The closed state of the power supply unit 60 and the support frame 62 is maintained by screws (not shown).

[0113] It should be noted that the center of the rotation axis of the power supply unit 60 and the support frame 62 is not limited to being parallel to the Z-axis direction. For example, it can also be set parallel to the X-axis direction. In addition, the power supply unit 60 and the support frame 62 can be configured to be detachable from the apparatus main body 2 instead of being configured to be openable and closable with respect to the apparatus main body 2.

[0114] In addition, the power supply unit 60 and the support frame 62 can also be configured not to be connected.

[0115] The high-voltage unit 70 is attached to the apparatus main body 2 by screws (not shown). However, similar to the electrical component unit 50 and the power supply unit 60, the high-voltage unit 70 can also be configured to be rotatable with respect to the apparatus main body 2. The center of the rotation axis at this time can be parallel to the Z-axis direction similar to the electrical component unit 50, or can also be parallel to the X-axis direction. When the high-voltage unit 70 is configured to be rotatable with respect to the apparatus main body 2, the following configuration can be considered: the center of the rotation axis is set parallel to the Z-axis direction, and when observed from a user facing the back of the apparatus, the high-voltage unit 70 opens to the left.

[0116] As Figure 7 shown, when observed from the front of the back side of the apparatus, the lower right corner portion of the electrical component unit 50 has a notch shape, and this portion will be hereinafter referred to as the notch portion 50a. And as Figure 4 shown, the wiping mechanism 40 is disposed in the notch portion 50a. In addition, at least a part of the wiper drive motor 46 and at least a part of the head lift motor 27 are disposed in the notch portion 50a. Thereby, it is possible to suppress the enlargement of the apparatus due to the setting of the wiper drive motor 46 and the head lift motor 27.

[0117] Then, by removing the back cover 25A, the wiping mechanism 40, the wiper drive motor 46, and the head lift motor 27 are exposed. Thus, by removing the back cover 25A, the replacement operation of the wiper drive motor 46 or the head lift motor 27 can be performed without removing other components.

[0118] By removing the back cover 25A, the connection unit 43 of the wiping mechanism 40 is first exposed. By removing the screws (not shown), the connection unit 43 can be detached from the device main body 2. By removing the connection unit 43, the wiper unit 41 is exposed. By removing the screws (not shown), the wiper unit 41 can be detached from the device main body 2. Thus, the wiper 42 can be replaced.

[0119] It should be noted that, in the present embodiment, the connection unit 43 can be removed while keeping the electrical component unit 50 and the power supply unit 60 closed, and then the wiper unit 41 can be removed. However, for example, it can also be configured such that the connection unit 43 and the wiper unit 41 can be removed by opening the electrical component unit 50.

[0120] Next, mainly with reference to Figure 7 and Figure 8 a configuration for suppressing the device size in the moving direction of the wiper unit 41 will be described. It should be noted that, in Figure 8 the electrical component unit 50 is shown by a solid line, and the power supply unit 60 is shown by a dashed-dotted line. In addition, the wiper unit 41 and the connection unit 43, that is, the wiping mechanism 40 are shown by a single-dotted line. In addition, the high-voltage unit 70 is shown by a dashed line.

[0121] As Figure 8 shown, in the moving direction of the wiper unit 41, a part of the electrical component unit 50 overlaps with a part of the power supply unit 60. And, a part of the electrical component unit 50 and a part of the power supply unit 60 overlap with a part of the wiping mechanism 40.

[0122] Thus, the device size in the moving direction of the wiper unit 41 can be suppressed, and miniaturization of the device can be achieved.

[0123] In the present embodiment, since the moving direction of the wiper unit 41 is the Y-axis direction, that is, the device depth direction, the depth direction size of the device can be suppressed.

[0124] More specifically, Figure 8The shown range La shows the range occupied by the wiping mechanism 40 in the Y-axis direction. The range Lb, which is included in the range La, is the range occupied by the wiper part 41 as the wiper part 41 moves. In other words, the range Lb corresponds to the moving area of the wiper part 41. In addition, the range Lc is the range occupied by the wiper part 41 in the Y-axis direction when the wiper part 41 is in the original position. In addition, the range Ld is the range occupied by the connection unit 43 that constitutes the wiping mechanism 40 in the Y-axis direction.

[0125] In addition, the range Le shows the range occupied by the electrical equipment unit 50 in the Y-axis direction, and the range Lf shows the range occupied by the power supply unit 60 in the Y-axis direction.

[0126] As shown in the figure, a part of the range Le overlaps with a part of the range Lf. That is, in the moving direction of the wiper part 41, a part of the electrical equipment unit 50 overlaps with a part of the power supply unit 60.

[0127] Moreover, a part of the range Le and a part of the range Lf overlap with a part of the range La. That is, a part of the electrical equipment unit 50 and a part of the power supply unit 60 overlap with a part of the wiping mechanism 40. The overlapping range of the wiping mechanism 40, the electrical equipment unit 50, and the power supply unit 60 in the Y-axis direction is shown by the reference numeral M1.

[0128] Although in this embodiment, in the moving direction of the wiper part 41, a part of the electrical equipment unit 50 overlaps with a part of the power supply unit 60, it is sufficient that at least a part of the electrical equipment unit 50 overlaps with at least a part of the power supply unit 60.

[0129] For example, it may be that a part of the electrical equipment unit 50 overlaps with all of the power supply unit 60, or it may be that all of the electrical equipment unit 50 overlaps with a part of the power supply unit 60.

[0130] In addition, alternatively, it may be that, in the moving direction of the wiper part 41, when the sizes of the electrical equipment unit 50 and the power supply unit 60 are the same, all of the electrical equipment unit 50 overlaps with all of the power supply unit 60.

[0131] In addition, although in this embodiment it is configured as follows: in the moving direction of the wiper part 41, a part of the electrical equipment unit 50 and a part of the power supply unit 60 overlap with a part of the wiping mechanism 40, it may also be configured as follows: in the moving direction of the wiper part 41, at least a part of the electrical equipment unit 50 and at least a part of the power supply unit 60 overlap with a part of the wiping mechanism 40.

[0132] For example, it may also be that all of the electrical equipment unit 50 and a part of the power supply unit 60 overlap with a part of the wiping mechanism 40.

[0133] Alternatively, it is also possible that a part of the electrical component unit 50 and the entire power supply unit 60 overlap with a part of the wiping mechanism 40.

[0134] Alternatively, it is also possible that the entire electrical component unit 50 and the entire power supply unit 60 overlap with a part of the wiping mechanism 40.

[0135] In addition, the wiper unit 41 can move to the end in the +Y direction, that is, the original position which is the position connected to the connection unit 43, and the wiping area of the wiping ink ejection surface 35. The wiping area corresponds to the range occupied by the line head 34 in the Y-axis direction and is indicated by the reference numeral Lg in Figure 7 the figure.

[0136] Moreover, in the present embodiment, when the wiper unit 41 is located at the original position, a part of the electrical component unit 50 and a part of the power supply unit 60 overlap with a part of the wiper unit 41. The range where a part of the electrical component unit 50 and a part of the power supply unit 60 overlap with a part of the wiper unit 41 when the wiper unit 41 is located at the original position is indicated by the reference numeral M2.

[0137] However, it is not limited thereto, and any configuration in which at least a part of the electrical component unit 50 overlaps with at least a part of the wiper unit 41 when the wiper unit 41 is located at the original position is acceptable. In this case, "at least a part" can also be either "a part" or "the entire part".

[0138] Or, any configuration in which at least a part of the power supply unit 60 overlaps with at least a part of the wiper unit 41 when the wiper unit 41 is located at the original position is acceptable. Even in this case, "at least a part" can also be either "a part" or "the entire part".

[0139] Or, any configuration in which at least a part of the electrical component unit 50 and at least a part of the power supply unit 60 overlap with at least a part of the wiper unit 41 when the wiper unit 41 is located at the original position is acceptable. Even in this case, "at least a part" can also be either "a part" or "the entire part".

[0140] In addition, the back covers 25A and 25B forming the back surface of the forming device are provided to be detachable from the device main body 2. By detaching or opening the back covers 25A and 25B, the electrical component unit 50 and the power supply unit 60 are exposed. Thereby, the maintainability of the electrical component unit 50 and the power supply unit 60 is improved.

[0141] It should be noted that the back covers 25A and 25B can also be provided to be openable and closable with respect to the device main body 2.

[0142] In addition, since the electrical component unit 50 and the power supply unit 60 are configured to be openable and closable with respect to the apparatus main body 2 in the present embodiment, compared with the configuration in which the electrical component unit 50 or the power supply unit 60 is disassembled, a storage space for the electrical component unit 50 or the power supply unit 60 is not required during maintenance work, and the workability during maintenance is improved.

[0143] In addition, in the present embodiment, a part of the high-voltage unit 70 overlaps with a part of the wiper mechanism 40 in the moving direction of the wiper unit 41. In the present embodiment, the range in which a part of the high-voltage unit 70 overlaps with a part of the wiper mechanism 40 in the moving direction of the wiper unit 41 is shown as range M3 in Figure 7 this figure.

[0144] Accordingly, it is possible to suppress an increase in the apparatus size in the moving direction of the wiper unit 41 due to the arrangement of the high-voltage unit 70, and in the present embodiment, it is possible to suppress the size in the depth direction of the apparatus.

[0145] It should be noted that, in the present embodiment, a part of the high-voltage unit 70 overlaps with a part of the wiper mechanism 40 in the moving direction of the wiper unit 41, but the configuration may be such that the entire high-voltage unit 70 overlaps with a part of the wiper mechanism 40 in the moving direction of the wiper unit 41.

[0146] Next, with reference to Figure 9 、 Figure 10 、 Figure 11 the configuration of the printer 1A according to other embodiments will be described. It should be noted that, in Figure 9 、 Figure 10 、 Figure 11 components that are the same as those already described are denoted by the same reference numerals, and redundant descriptions will be avoided hereinafter. It should be noted that, although in Figure 10 、 Figure 11 the electrical component unit 50, the power supply unit 60, and other components described with reference to Figure 7 、 Figure 8 are not shown, the printer 1A in the present embodiment also includes the components described with reference to Figure 7 、 Figure 8 and their arrangements are the same as those in Figure 7 、 Figure 8 . However, the components described with reference to Figure 7 、 Figure 8 are not necessarily essential in the present embodiment.

[0147] In Figure 9Reference numeral 80 in the drawings shows a conveyance unit. The conveyance unit 80 is a unit including a head unit 33, a belt unit 6, and a cover carriage 31, and is configured to be detachable from a front frame 90 and a rear frame 91 that form a base of the apparatus main body 2 (see Figure 10 , Figure 11 ).

[0148] Figure 10 , Figure 11 The front frame 90 and the rear frame 91 shown are a pair of frames, having frame surfaces parallel to the X-Z plane, and are disposed opposite to each other across the conveyance unit 80 in the moving direction (Y-axis direction) of the wiper unit 41.

[0149] Returning to Figure 9 , an ink supply unit 73, a maintenance box 77, and a maintenance unit 79 are disposed in the +X direction with respect to the conveyance unit 80 (see Figure 10 ).

[0150] The ink supply unit 73 includes an ink storage portion 74 that stores ink, a mounting portion 75 capable of detaching and attaching the ink storage portion 74, and a liquid storage tank 76. The liquid storage tank 76 is a portion in the ink flow path located between the ink storage portion 74 and the line head 34, and stores the ink supplied from the ink storage portion 74. The liquid storage tank 76 is an example of a liquid storage portion. As shown by reference numerals 74a, 74b, 74c, and 74d, the ink storage portion 74 is composed of a plurality of ink cartridges. Each ink cartridge is an example of a liquid storage container. The mounting portion 75 and the liquid storage tank 76 are provided corresponding to each of the plurality of ink cartridges. Each ink cartridge can be detached and attached from the front side (-Y direction) of the apparatus.

[0151] The ink stored in the liquid storage tank 76 is supplied to the line head 34 through an ink tube 82. The ink tube 82 is also provided corresponding to each of the plurality of ink cartridges. Thus, by disposing the ink supply unit 73 adjacent to the conveyance unit 80, the length of the ink tube 82 can be shortened.

[0152] A maintenance box 77 is disposed below the ink supply unit 73. The maintenance box 77 is connected to the cover carriage 31 through an ink tube (not shown), and the ink (waste ink) ejected from the line head 34 to the cover carriage 31 is sent to and stored in the maintenance box 77. In addition, distilled water is stored in the maintenance box 77, and at a required timing, the distilled water is sent to the cover carriage 31 for moisturizing.

[0153] The maintenance box 77 can be detached and attached from the front side (-Y direction) of the apparatus.

[0154] It should be noted that the ink storage portion 74 and the maintenance box 77 protrude more toward the front side (-Y direction) of the apparatus than the mounting portion 75 and the liquid storage tank 76. Thereby, the detachment and attachment operations of each ink cartridge constituting the ink storage portion 74 and the maintenance box 77 are facilitated.

[0155] As shown in Figure 10 , Figure 11 Fig. , the maintenance unit 79 is arranged on the +Y direction, i.e., the rear side of the device, relative to the ink supply unit 73. The maintenance unit 79 is a part that recovers the ink (waste ink) ejected from the line head 34 to the cover carriage 31 and sends the ink to the maintenance box 77, or a part that sends the above-mentioned distilled water from the maintenance box 77 to the cover carriage 31, and is provided with a pump (not shown). The maintenance unit 79 is an example of a waste liquid recovery unit.

[0156] The maintenance unit 79 is configured to be accessible by opening an opening / closing cover (not shown) provided on the side surface of the device main body 2 in the +X direction. Thus, even when the side surface of the device main body 2 in the +Y direction is arranged close to the wall, the maintenance unit 79 can be easily accessed.

[0157] In the above configuration, as shown in Figure 10 Fig. , a part of the conveying unit 80 overlaps with the entire maintenance unit 79 in the moving direction (Y-axis direction) of the wiper unit 41. In Figure 10 Fig. , the range Da shows the range occupied by the conveying unit 80 in the Y-axis direction, and the range Db shows the range occupied by the maintenance unit 79 in the Y-axis direction. In the present embodiment, the entire range of the range Db is included in the range Da. Thus, the device size in the Y-axis direction, i.e., the moving direction of the wiper unit 41, can be suppressed, and miniaturization of the device can be achieved.

[0158] It should be noted that it is sufficient that at least a part of the conveying unit 80 overlaps with at least a part of the maintenance unit 79. In this case, the "at least a part" can be either "a part" or "the whole".

[0159] In addition, in Figure 10 Fig. , the range Dd shows the range occupied by the mounting portion 75 in the Y-axis direction. As shown in the figure, in the Y-axis direction, the entire mounting portion 75 and the entire maintenance unit 79 are within the range of the conveying unit 80. Thus, the device size in the Y-axis direction, i.e., the moving direction of the wiper unit 41, can be suppressed, and miniaturization of the device can be achieved.

[0160] In addition, in Figure 10 Fig. , the range Dc shows the range occupied by the ink supply unit 73 in the Y-axis direction. As shown in the figure, in the Y-axis direction, a part of the ink supply unit 73 and the entire maintenance unit 79 overlap with a part of the conveying unit 80. Thus, the device size in the Y-axis direction, i.e., the moving direction of the wiper unit 41, can be suppressed, and miniaturization of the device can be achieved.

[0161] Moreover, since the ink supply unit 73 and the maintenance unit 79 are arranged side by side in the Y-axis direction (also refer toFigure 11 ), so it is possible to suppress the device size in the direction intersecting the Y-axis direction, that is, the X-axis direction, and miniaturization of the device can be achieved.

[0162] It should be noted that as long as at least a part of the ink supply unit 73 and at least a part of the maintenance unit 79 overlap with at least a part of the conveying unit 80, the "at least a part" in this case can also be either "a part" or "all".

[0163] In addition, the device main body 2 includes a front frame 90 and a rear frame 91 that support the conveying unit 80. As Figure 10 shown, the entire maintenance unit 79 is disposed inside the front frame 90 and the rear frame 91. Therefore, there is no need to provide holes for the maintenance unit 79 to pass through the front frame 90 and the rear frame 91, especially the rear frame 91, and a reduction in the rigidity of the front frame 90 and the rear frame 91 can be avoided.

[0164] In addition, as Figure 10 shown, a part of the conveying unit 80 overlaps with a part of the ink supply unit 73 in the Y-axis direction. Thereby, it is possible to suppress the device size in the Y-axis direction, that is, the moving direction of the wiper unit 41, and miniaturization of the device can be achieved.

[0165] It should be noted that as long as at least a part of the conveying unit 80 overlaps with at least a part of the ink supply unit 73, the "at least a part" in this case can also be either "a part" or "all".

[0166] The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims. Of course, these are also included within the scope of the present invention.

Claims

1. A liquid ejection device, characterized in that: The liquid ejection device includes: A liquid nozzle that ejects liquid onto a medium; A wiping mechanism that wipes the liquid ejection surface of the liquid nozzle and has: a wiper part that wipes the liquid ejection surface by moving in a direction along the liquid ejection surface; An electrical component part that is a part related to the control of the liquid ejection device and includes a substrate; and A power supply part that is a power supply source, The moving direction of the wiper part is a direction crossing the surface of the substrate, In the moving direction of the wiper part, at least a part of the electrical component part overlaps at least a part of the power supply part, In the moving direction of the wiper part, at least a part of the electrical component part and at least a part of the power supply part overlap a part of the wiping mechanism.

2. The liquid ejection device according to claim 1, characterized in that: The wiper part can move to an original position and a wiping area for wiping the liquid ejection surface, When the wiper part is located at the original position, In the moving direction of the wiper part, at least a part of the electrical component part overlaps at least a part of the wiper part, or, In the moving direction of the wiper part, at least a part of the power supply part overlaps at least a part of the wiper part, or, In the moving direction of the wiper part, at least a part of the electrical component part and at least a part of the power supply part overlap at least a part of the wiper part.

3. The liquid ejection device according to claim 1, characterized in that: The moving direction of the wiper part is the device depth direction.

4. The liquid ejection device according to claim 3, characterized in that: A back cover forming the back surface of the liquid ejection device is provided to be detachable or openable with respect to the device main body, By detaching or opening the back cover, the electrical component part and the power supply part are exposed.

5. The liquid ejection device according to claim 4, characterized in that: The electrical component part and the power supply part are provided to be openable and closable with respect to the device main body.

6. The liquid ejection device according to any one of claims 1 to 5, characterized in that: The liquid ejection device includes: A conveyor belt that conveys a medium and is provided at a position opposite to the liquid nozzle; and A high voltage part that controls the charging of the conveyor belt and processes a voltage higher than that of the electrical component part, In the moving direction of the wiper part, at least a part of the high voltage part overlaps a part of the wiping mechanism.

7. The liquid ejection device according to any one of claims 1 to 5, characterized in that: The electrical component part includes: a communication part for communicating with an external device.

8. The liquid ejection device according to any one of claims 1 to 5, characterized in that: The liquid ejection device includes: a wiper drive motor as a power source for the movement of the wiper part, When viewed from the moving direction of the wiper part, a notch part is formed in the electrical component part, At least a part of the wiper drive motor is arranged in the notch part.

9. The liquid ejecting device according to any one of claims 1 to 5, wherein: The liquid ejecting device includes: A conveying unit that conveys a medium; and A waste liquid recovery unit that recovers waste liquid ejected from the liquid ejector head.

10. The liquid ejecting device according to claim 9, wherein: In the moving direction of the wiper unit, at least a part of the conveying unit overlaps with at least a part of the waste liquid recovery unit.

11. The liquid ejecting device according to claim 9, wherein: The liquid ejecting device includes: a mounting portion capable of detaching and attaching a liquid storage container that stores the liquid supplied to the liquid ejector head, In the moving direction of the wiper unit, the entire mounting portion and the entire waste liquid recovery unit are within the range of the conveying unit.

12. The liquid ejecting device according to claim 9, wherein: The liquid ejecting device includes: a liquid supply unit that supplies liquid to the liquid ejector head, The liquid supply unit has: A mounting portion capable of detaching and attaching a liquid storage container that stores the liquid supplied to the liquid ejector head; and A liquid storage portion that is a portion in the liquid flow path between the liquid storage container and the liquid ejector head and stores the liquid supplied from the liquid storage container, In the moving direction of the wiper unit, at least a part of the liquid supply unit and at least a part of the waste liquid recovery unit overlap with at least a part of the conveying unit, The liquid supply unit and the waste liquid recovery unit are arranged along the moving direction of the wiper unit.

13. The liquid ejecting device according to claim 9, wherein: The liquid ejecting device includes: a pair of frames that support the conveying unit and are arranged opposite to each other with the conveying unit interposed therebetween in the moving direction of the wiper unit, The entire waste liquid recovery unit is provided inside the pair of frames.

14. The liquid ejecting device according to any one of claims 1 to 5, wherein: The liquid ejecting device includes: A conveying unit that conveys a medium; and A liquid supply unit that supplies liquid to the liquid ejector head, The liquid supply unit has: A mounting portion capable of detaching and attaching a liquid storage container that stores the liquid supplied to the liquid ejector head; and A liquid storage portion that is a portion in the liquid flow path between the liquid storage container and the liquid ejector head and stores the liquid supplied from the liquid storage container, In the moving direction of the wiper unit, at least a part of the conveying unit overlaps with at least a part of the liquid supply unit.

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