Housing unit and recording apparatus

Abstract

To provide a housing unit and a recording device capable of reducing the possibility that a harness interferes with other members.SOLUTION: The housing unit includes a frame, a blower unit (51) attached to the frame, a control board configured to control the blower unit, and a harness (71) extending along the frame and connected to the control board and the blower unit, the blower unit includes a fan (52) and a duct (53) configured to house the fan, and the duct includes a forming portion (61) configured to form a housing space (62) for housing a part of the harness together with the frame.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a housing unit and a recording device. [Background technology]

[0002] Patent Document 1 describes a recording device that includes a harness that extends from an electrical component along a frame. In this recording device, the harness is aligned with the frame to reduce the risk of the harness coming into contact with other components. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-119080 Summary of the Invention [Problem to be solved by the invention]

[0004] In such recording devices, the harness may have slack. By leaving slack in the harness, it becomes easier for the operator to pull the harness out of the housing. This improves the ease of maintenance of the harness. However, leaving slack in the harness makes it more likely to lift up from the frame. Therefore, leaving slack in the harness may make it more likely to interfere with other components. [Means for solving the problem]

[0005] A housing unit that solves the above problem comprises a frame, a blower unit attached to the frame, a control board that controls the blower unit, and a harness that extends along the frame and is connected to the control board and the blower unit, wherein the blower unit has a fan and a duct that houses the fan, and the duct has a formed portion that, together with the frame, forms a storage space that houses part of the harness.

[0006] A recording device that solves the above problem includes the above housing unit and a recording section that is housed in the housing unit and records an image on a medium. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view showing an example of a recording apparatus. [Figure 2] FIG. 2 is a perspective view of the recording device with the reading unit removed. [Figure 3] FIG. 3 is a perspective view of the recording apparatus shown in FIG. 2 with the first cover removed. [Figure 4] FIG. 4 is a perspective view schematically showing the housing unit. [Figure 5] FIG. 5 is a view of the housing unit as seen from the second direction. [Figure 6] FIG. 6 is a diagram of the duct. [Figure 7] FIG. 7 is an enlarged view of FIG. [Figure 8] FIG. 8 is a view of the housing unit as seen from the opposite direction to the first direction. [Figure 9] FIG. 9 is a view showing the harness separated from the state shown in FIG. [Figure 10] FIG. 10 is a view showing the harness separated from the state shown in FIG. [Figure 11] FIG. 11 shows a modified example of the duct. [Figure 12] FIG. 12 is a perspective view of a housing unit including the duct shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of a recording device including a housing unit will be described below with reference to the drawings. The recording device is, for example, an inkjet printer that records images such as characters and photographs by ejecting ink, which is an example of a liquid, onto a medium such as paper or fabric.

[0009] <Recording device> 1, the recording device 11 includes a device main body 12. The device main body 12 is configured to record an image on a medium M1. The device main body 12 will be described later. The recording device 11 may be a multifunction device that has functions other than just recording an image on a medium M1.

[0010] The recording device 11 may include a processing unit 13. The processing unit 13 may be a processing device that is detachable from the recording device 11. The processing unit 13 is configured to process the medium M1 recorded by the device main body 12. The processing unit 13 performs, for example, stapling, punching, etc. on the recorded medium M1. The processing unit 13 is mounted on the device main body 12. The processing unit 13 is mounted on the top of the device main body 12. The processing unit 13 may hold or eject the processed medium M1. The recording device 11 or the processing unit 13 may include an ejection tray that receives the processed medium M1.

[0011] The recording device 11 may include a reading unit 14. The reading unit 14 is configured to read an image recorded on a document. The reading unit 14 is a scanner. The reading unit 14 sequentially reads images from a set document by automatically feeding the document. The reading unit 14 is mounted on the device main body 12. The reading unit 14 is mounted on the top of the device main body 12. The reading unit 14 is located above the processing unit 13. The reading unit 14 overlaps with the device main body 12 when viewed from the vertical direction D3.

[0012] The recording device 11 includes an operation unit 15. The operation unit 15 is an interface that allows the user to operate the recording device 11. The operation unit 15 is, for example, a touch panel. The operation unit 15 may include buttons, levers, switches, etc. The operation unit 15 is located in front of the device main body 12, the processing unit 13, and the reading unit 14.

[0013] <Device body> The device main body 12 has a housing unit 16. The housing unit 16 houses various components of the device main body 12. The housing unit 16 is rectangular parallelepiped-shaped. The housing unit 16 has a depth, width, and height. The depth of the housing unit 16 is the length of the housing unit 16 in a first direction D1. The width of the housing unit 16 is the length of the housing unit 16 in a second direction D2. The height of the housing unit 16 is the length of the housing unit 16 in a vertical direction D3. The first direction D1 is a direction different from the second direction D2 and the vertical direction D3. The first direction D1 is a direction from the front of the housing unit 16 to the back. The second direction D2 is a direction different from the vertical direction D3. The second direction D2 is a direction from left to right when the housing unit 16 is viewed from the first direction D1. The first direction D1 and the second direction D2 indicate directions in which the installation surface on which the device main body 12 is installed extends.

[0014] The housing unit 16 has multiple surfaces. The housing unit 16 has a front surface 17, a rear surface 18, a first side surface 19, and a second side surface 20. The front surface 17 is a surface of the housing unit 16 that faces the opposite direction to the first direction D1. In one example, the front surface 17 faces the same direction as the operation unit 15. The front surface 17 faces a user who operates the recording device 11. The rear surface 18 is a surface of the housing unit 16 that faces the first direction D1. The rear surface 18 is a surface opposite to the front surface 17. The front surface 17 and the rear surface 18 extend in the second direction D2 and the vertical direction D3. The first side surface 19 is a surface of the housing unit 16 that faces the opposite direction to the second direction D2. The second side surface 20 is a surface of the housing unit 16 that faces the second direction D2. The second side surface 20 faces opposite the first side surface 19. The second side surface 20 faces in a direction different from the front surface 17, the rear surface 18, and the first side surface 19. The first side surface 19 and the second side surface 20 extend in a first direction D1 and a vertical direction D3.

[0015] The device main body 12 has a recording unit 21. The recording unit 21 is configured to record an image on the medium M1. The recording unit 21 records the image on the medium M1, for example, by ejecting a liquid onto the medium M1. In one example, the recording unit 21 includes a line head that is long in the first direction D1. The recording unit 21 is housed in the housing unit 16.

[0016] The device main body 12 may have a stacking section 22. The stacking section 22 is configured to receive media M1. For example, multiple sheets of media M1 are stacked on the stacking section 22. Pre-recorded media M1 are loaded on the stacking section 22. The stacking section 22 is attached to the housing unit 16. The stacking section 22 is located at the bottom within the housing unit 16. In one example, the stacking section 22 is configured to be insertable into and removable from the housing unit 16. The stacking section 22 is, for example, a cassette. The stacking section 22 is insertable and removable from the front surface 17. A user can refill the stacking section 22 with media M1 by pulling the stacking section 22 out of the housing unit 16. The stacking section 22 is not limited to a cassette, and may also be a tray. In addition to the recording section 21 and the stacking section 22, the device main body 12 may also have a storage section for storing liquid, a transport section for transporting the media M1, and the like.

[0017] <Housing unit> 2 and 3, the housing unit 16 may have one or more covers. In one example, the housing unit 16 has multiple covers. The covers form the exterior of the housing unit 16.

[0018] The housing unit 16 has a first cover 23. In one example, the first cover 23 forms a first side surface 19. The first cover 23 may form a rear surface 18 in addition to the first side surface 19. The first cover 23 is configured to be removable from the housing unit 16. When the first cover 23 is removed from the housing unit 16, the inside of the housing unit 16 is exposed. An operator performs maintenance on the inside of the housing unit 16 by removing the first cover 23.

[0019] The first cover 23 has a cover member 24. The cover member 24 is a part of the first cover 23 that forms the rear surface 18. A ventilation hole 25 is opened in the cover member 24. More specifically, the ventilation hole 25 is opened in the cover member 24. Through the ventilation hole 25, air can flow from inside the housing unit 16 to outside the housing unit 16, and air can flow from outside the housing unit 16 to inside the housing unit 16.

[0020] The first cover 23 has an opposing member 26. The opposing member 26 is a portion of the first cover 23 that is not exposed to the outside. The opposing member 26 extends from the cover member 24. More specifically, the opposing member 26 extends from the cover member 24 in the direction opposite to the first direction D1. The opposing member 26 is, for example, an air duct. The opposing member 26 communicates with a portion of the ventilation opening 25. The opposing member 26 guides air from outside the housing unit 16 to inside the housing unit 16, and guides air from inside the housing unit 16 to outside the housing unit 16. The opposing member 26 is not limited to an air duct, and may be a member that simply protrudes from the cover member 24.

[0021] The housing unit 16 may have a second cover 27A. In one example, the second cover 27A forms the rear surface 18. Specifically, the second cover 27A forms the rear surface 18 with a larger area than the first cover 23. The second cover 27A is positioned adjacent to the first cover 23. The second cover 27A is configured to be removable from the housing unit 16. When the second cover 27A is removed from the housing unit 16, the inside of the housing unit 16 is exposed. An operator performs maintenance on the housing unit 16 by removing the second cover 27A.

[0022] The housing unit 16 may have a third cover 27B. In one example, the third cover 27B forms the first side surface 19 together with the first cover 23. More specifically, the third cover 27B forms the first side surface 19 with an area larger than that of the first cover 23. The third cover 27B is positioned adjacent to the first cover 23. The third cover 27B is configured to be removable from the housing unit 16. When the third cover 27B is removed from the housing unit 16, the inside of the housing unit 16 is exposed. An operator performs maintenance on the housing unit 16 by removing the third cover 27B.

[0023] The housing unit 16 may have a cover in addition to the first cover 23, the second cover 27A, and the third cover 27B. For example, the housing unit 16 may have a cover that forms the front surface 17, or may have a cover that forms the second side surface 20. The housing unit 16 may be configured so that an operator can access the inside of the housing unit 16 from the front, the side, etc.

[0024] As shown in FIG. 4, the housing unit 16 has a frame section 28. The frame section 28 forms the skeleton of the housing unit 16. The frame section 28 is configured so that covers such as the first cover 23, the second cover 27A, and the third cover 27B can be attached and detached. The frame section 28 houses various components of the device main body 12. In one example, the frame section 28 houses the recording section 21. The frame section 28 may also house the loading section 22. The frame section 28 has a rectangular parallelepiped shape. The frame section 28 is made of, for example, metal. This ensures the rigidity of the housing unit 16.

[0025] The frame section 28 defines a frame space A1. The frame space A1 is a space surrounded by the frame section 28. The frame space A1 is a space inside the frame section 28. The recording section 21 is located in the frame space A1. The loading section 22 may also be located in the frame space A1.

[0026] The frame unit 28 has one or more frames. In one example, the frame unit 28 has a plurality of frames. Covers such as the first cover 23, the second cover 27A, and the third cover 27B are attached to the frames. When the covers are attached, the frames are covered by the covers.

[0027] The frame portion 28 has a first frame 29. The first frame 29 defines a frame space A1. The first frame 29 is, for example, a metal plate. The first frame 29 is a plate that extends in the first direction D1 and the vertical direction D3. In one example, the first frame 29 forms the left wall of the frame portion 28 when the housing unit 16 is viewed from the first direction D1.

[0028] The first frame 29 has a mounting surface 30. The mounting surface 30 is a surface of the first frame 29 that faces outward from the housing unit 16. More specifically, the mounting surface 30 is a surface of the first frame 29 that faces the opposite direction to the second direction D2.

[0029] A through hole 31 opens in the first frame 29. More specifically, the through hole 31 opens in the mounting surface 30. The through hole 31 is a groove, a hole, or the like. The through hole 31 communicates with the frame space A1. Therefore, the through hole 31 communicates the frame space A1 with the outside of the frame portion 28. Through the through hole 31, air can flow from inside the frame portion 28 to outside the frame portion 28, and air can flow from inside the frame portion 28 to outside the frame portion 28.

[0030] A passage opening 32 may be opened in the first frame 29. The passage opening 32 may be opened in the mounting surface 30. The passage opening 32 is a groove, a hole, or the like. The passage opening 32 is formed, for example, so as not to communicate with the frame space A1. The passage opening 32 is positioned so as to face the opposing member 26. More specifically, the passage opening 32 is positioned so as to overlap with the opposing member 26 when viewed from the second direction D2 with the first cover 23 attached. In one example, the passage opening 32 is positioned below the through opening 31. The passage opening 32 is formed at the lower end of the first frame 29.

[0031] The first frame 29 is covered by the first cover 23 and the third cover 27B. More specifically, when the first cover 23 and the third cover 27B are attached to the first frame 29, the first frame 29 is covered by the first cover 23 and the third cover 27B. When the first cover 23 and the third cover 27B are removed from the first frame 29, at least a portion of the first frame 29 is exposed. The first frame 29 may be configured to hold the first cover 23 and the third cover 27B. The first frame 29 may be configured to hold the second cover 27A. Note that the first cover 23 and the third cover 27B are not limited to being directly attached to the first frame 29, and may be indirectly attached via sheet metal or the like.

[0032] The frame portion 28 may have a second frame 33. The first frame 29 and the second frame 33 are joined to each other. The first frame 29 is attached to the second frame 33. The first frame 29 and the second frame 33 define a frame space A1. The second frame 33 is, for example, a metal plate. The second frame 33 is a plate that extends in the second direction D2 and the vertical direction D3. The second frame 33 extends perpendicular to the first frame 29. In one example, the second frame 33 forms a rear wall of the frame portion 28 when the housing unit 16 is viewed from the first direction D1.

[0033] The second frame 33 has a holding surface 34. The holding surface 34 is a surface of the second frame 33 that faces outward from the housing unit 16. More specifically, the holding surface 34 is a surface of the second frame 33 that faces the first direction D1.

[0034] The second frame 33 is covered by the second cover 27A. More specifically, when the second cover 27A is attached to the second frame 33, the second frame 33 is covered by the second cover 27A. When the second cover 27A is removed from the second frame 33, the second frame 33 is exposed. The second frame 33 may be configured to hold the second cover 27A. The second frame 33 may be configured to hold the first cover 23.

[0035] The frame portion 28 may have a third frame 35. The first frame 29, the second frame 33, and the third frame 35 are joined to one another. The third frame 35 is attached to the first frame 29. The third frame 35 is attached to the second frame 33. The third frame 35 connects the first frame 29 and the second frame 33. The third frame 35 is, for example, a metal plate.

[0036] The third frame 35 has a first portion 36 and a second portion 37. The first portion 36 is a portion that faces the first frame 29. The second portion 37 is a portion that faces the second frame 33. The first portion 36 forms a right side wall when the housing unit 16 is viewed from the first direction D1. The second portion 37 forms a front wall when the housing unit 16 is viewed from the first direction D1. The first portion 36 is a portion that extends in the first direction D1 and the vertical direction D3. The second portion 37 is a portion that extends in the second direction D2 and the vertical direction D3. The first portion 36 is attached to the second frame 33. The second portion 37 is attached to the first frame 29. The first portion 36 and the second portion 37 are fixed to each other.

[0037] The frame portion 28 may have a frame in addition to the first frame 29, the second frame 33, and the third frame 35. The housing unit 16 may have, for example, a frame attached to the second frame 33 and the third frame 35 in addition to the first frame 29.

[0038] The housing unit 16 has one or more board units. In one example, the housing unit 16 has a plurality of board units. Specifically, the housing unit 16 has two board units.

[0039] The housing unit 16 has a first board unit 41. The first board unit 41 is attached to the frame portion 28. In one example, the first board unit 41 is attached to a first frame 29. The first board unit 41 may also be attached to another frame.

[0040] The first substrate unit 41 is located outside the frame portion 28. The first substrate unit 41 is located so as to face the first frame 29. The first substrate unit 41 is located so as to face the mounting surface 30. The first substrate unit 41 faces the mounting surface 30 so as to form a flow space S1. The flow space S1 is a space in which air can flow between the first substrate unit 41 and the first frame 29. In other words, the first substrate unit 41 is attached to the frame portion 28 with a gap between it and the mounting surface 30.

[0041] The first substrate unit 41 is covered by the first cover 23 and the third cover 27B. More specifically, when the first cover 23 and the third cover 27B are attached to the first frame 29, the first substrate unit 41 is covered by the first cover 23 and the third cover 27B. When the first cover 23 and the third cover 27B are removed from the first frame 29, at least a portion of the first substrate unit 41 is exposed.

[0042] The first substrate unit 41 has a power supply substrate 42. The power supply substrate 42 is a substrate that supplies power to the electrical components provided in the housing unit 16. In one example, the power supply substrate 42 supplies power to the electrical components provided in the recording device 11. The power supply substrate 42 supplies power to, for example, the processing unit 13, the reading unit 14, the operation unit 15, the recording unit 21, etc. The power supply substrate 42 handles a large amount of power and therefore is prone to becoming hot.

[0043] The power supply board 42 faces the first frame 29. The power supply board 42 is positioned to form a flow space S1. Air flows through the flow space S1, making it difficult for heat generated from the power supply board 42 to reach the frame space A1.

[0044] The first substrate unit 41 has a power supply case 43. The power supply case 43 houses the power supply substrate 42. The power supply case 43 protects the power supply substrate 42. The power supply case 43 is, for example, in the shape of a rectangular parallelepiped. The power supply case 43 is attached to the frame portion 28 so as to form a flow space S1.

[0045] The first board unit 41 may have one or more power supply fans 44. The power supply fans 44 are attached to the power supply case 43. More specifically, the power supply fans 44 are attached to a surface of the power supply case 43 that is exposed when the first cover 23 is removed. In one example, the power supply fans 44 are attached to a surface of the power supply case 43 that faces the first direction D1.

[0046] The power supply fan 44 may be configured to exhaust air from the power supply case 43, or may be configured to draw air into the power supply case 43. The power supply fan 44 is configured to circulate air inside and outside the power supply case 43. In one example, the power supply fan 44 is configured to blow air from inside the power supply case 43 to outside the power supply case 43. This suppresses a temperature rise inside the power supply case 43. As a result, a temperature rise in the power supply board 42 is suppressed.

[0047] As shown in FIG. 5 , the power supply fan 44 is attached to the opposing member 26. More specifically, when the first cover 23 is attached to the first frame 29, the power supply fan 44 fits into the opposing member 26. When the first cover 23 is attached to the first frame 29, the opposing member 26 faces the mounting surface 30. When the first cover 23 is attached to the first frame 29, the power supply fan 44 is inserted into the opposing member 26. Therefore, the power supply fan 44 causes air to flow between the inside of the power supply case 43 and the outside of the housing unit 16 through the opposing member 26. In one example, the power supply fan 44 blows air from the inside of the power supply case 43 to the outside of the housing unit 16 through the opposing member 26. When the first cover 23 is removed, the power supply fan 44 is removed from the opposing member 26.

[0048] 4, the housing unit 16 has a second board unit 45. The second board unit 45 is attached to the frame portion 28. In one example, the second board unit 45 is attached to the second frame 33. The second board unit 45 may also be attached to another frame.

[0049] The second substrate unit 45 is located outside the frame portion 28. The second substrate unit 45 is located so as to face the second frame 33. The second substrate unit 45 is located so as to face the holding surface 34. The second substrate unit 45 may face the holding surface 34 so as to form an air space S2. The air space S2 is a space in which air is present between the second substrate unit 45 and the second frame 33. The air space S2 is a space in which air can flow between the second substrate unit 45 and the second frame 33. In other words, the second substrate unit 45 may be attached to the frame portion 28 with a gap between it and the holding surface 34. The second substrate unit 45 may be attached to the frame portion 28 so as to be in contact with the holding surface 34.

[0050] The second substrate unit 45 is covered by the second cover 27A. More specifically, the second cover 27A is attached to the second frame 33. The second substrate unit 45 is covered by the second cover 27A. When the second cover 27A is removed from the second frame 33, the second substrate unit 45 is exposed.

[0051] The second board unit 45 has a control board 46. The control board 46 is a board that controls the electrical components provided in the housing unit 16. In one example, the control board 46 supplies power to the electrical components provided in the recording device 11. The control board 46 controls, for example, the processing unit 13, the reading unit 14, the operation unit 15, the recording unit 21, etc. The control board 46 is connected to the power supply board 42. The control board 46 controls various components based on the power supplied from the power supply board 42. The control board 46 is also prone to becoming hot due to heat generation. However, since the control board 46 handles less power than the power supply board 42, it may be less likely to become hot than the power supply board 42.

[0052] The control board 46 faces the second frame 33. The control board 46 is positioned so as to form an air space S2 between it and the holding surface 34. The presence of air in the air space S2 makes it difficult for heat generated from the control board 46 to reach the frame space A1.

[0053] The second board unit 45 has a control case 47. The control case 47 houses the control board 46. The control case 47 protects the control board 46. In one example, the control case 47 has a rectangular parallelepiped shape. The control case 47 is attached to the frame portion 28 so as to form an air space S2.

[0054] The housing unit 16 has a blower unit 51. The blower unit 51 is configured to circulate air in the frame space A1. The blower unit 51 is controlled by the control board 46. The blower unit 51 is configured to blow air from outside the frame space A1 into the frame space A1, or to blow air from the frame space A1 to outside the frame space A1. This ventilates the frame space A1. The blower unit 51 reduces the risk of the frame space A1 becoming too hot. For example, the risk of the frame space A1 becoming too hot due to heat generated from the board unit is reduced.

[0055] The air blowing unit 51 is attached to the frame portion 28. More specifically, the air blowing unit 51 is attached to the first frame 29. The air blowing unit 51 is attached to the mounting surface 30. The air blowing unit 51 is attached to the mounting surface 30 so as to cover the through-hole 31. The air blowing unit 51 is configured to cause air to flow between the frame space A1 and the outside of the frame space A1 through the through-hole 31. The air blowing unit 51 may be configured to blow air from the frame space A1 to the outside of the frame space A1 through the through-hole 31, or may be configured to blow air from the outside of the frame space A1 to the frame space A1.

[0056] 5, the air blowing unit 51 is attached to the first frame 29 so as to face the first cover 23. More specifically, the air blowing unit 51 is attached to the first frame 29 so as to face the cover member 24. The air blowing unit 51 causes air to flow between the frame space A1 and the outside of the housing unit 16 through the ventilation openings 25 and the through openings 31. The air blowing unit 51 may blow air from the frame space A1 to the outside of the housing unit 16 through the ventilation openings 25 and the through openings 31, or may blow air from the outside of the housing unit 16 to the frame space A1.

[0057] The blower unit 51 is positioned adjacent to the opposing member 26. In one example, the blower unit 51 is positioned adjacent to the opposing member 26 in the vertical direction D3. For example, when the first cover 23 is attached to the first frame 29, the blower unit 51 is positioned directly above the opposing member 26.

[0058] The blower unit 51 has a fan 52. The fan 52 rotates when driven. This causes air to flow between the frame space A1 and the outside of the housing unit 16 through the ventilation opening 25. In one example, the fan 52 is driven to exhaust air from the frame space A1 to the outside of the housing unit 16. The fan 52 is controlled by the control board 46. For example, the rotation amount of the fan 52 is controlled by duty-controlling the voltage applied to the fan 52.

[0059] The blower unit 51 has a duct 53. The duct 53 houses a fan 52. The duct 53 is attached to the first frame 29. The duct 53 is attached to the mounting surface 30. The duct 53 communicates with the frame space A1. The duct 53 guides air circulated by the fan 52. The duct 53 guides air between the first frame 29 and the first cover 23. The duct 53 guides air between the through opening 31 and the ventilation opening 25. In one example, the duct 53 guides air from the through opening 31 toward the ventilation opening 25.

[0060] The duct 53 is positioned adjacent to the opposing member 26. More specifically, the duct 53 is positioned adjacent to the opposing member 26 by attaching the first cover 23 to the first frame 29. In one example, the duct 53 is positioned adjacent to the opposing member 26 in the vertical direction D3. The duct 53 is positioned directly above the opposing member 26, for example.

[0061] 6 and 7, the duct 53 has a housing portion 54. The housing portion 54 is a portion that houses the fan 52 therein. The housing portion 54 is attached to the first frame 29. More specifically, the housing portion 54 is attached to the mounting surface 30. The housing portion 54 is attached so as to face the through opening 31. The housing portion 54 is attached so as to cover the through opening 31 when viewed from the second direction D2.

[0062] The accommodation portion 54 defines a flow path 55. The fan 52 is located midway along the flow path 55. The flow path 55 guides the air moved by the fan 52. The flow path 55 extends from the through-hole 31 toward the ventilation opening 25.

[0063] A plurality of openings are formed in the storage portion 54. More specifically, a first opening 56 and a second opening 57 are formed in the storage portion 54. The first opening 56 and the second opening 57 communicate with the flow path 55. The first opening 56 is an opening that communicates with the ventilation opening 25. The first opening 56 is open in the storage portion 54 in a first direction D1. The second opening 57 is an opening that communicates with the through-hole 31. The second opening 57 is open in the storage portion 54 in a second direction D2.

[0064] A third opening 58 may be formed in the storage portion 54. The third opening 58 communicates with the flow path 55. The third opening 58 communicates with the second opening 57. The third opening 58 opens in the storage portion 54 in the direction opposite to the first direction D1. The third opening 58 communicates with the flow space S1. Therefore, when the fan 52 is driven, air flows through the flow space S1. In one example, when the fan 52 is driven, air flows from the flow space S1 to the duct 53.

[0065] The accommodation portion 54 has an opposing wall 59. The opposing wall 59 is a wall of the accommodation portion 54 that faces the first frame 29. The opposing wall 59 faces the mounting surface 30. The opposing wall 59 is a wall that defines the flow path 55.

[0066] A connection port 60 opens in the opposing wall 59. The connection port 60 communicates with the flow path 55. The connection port 60 allows the inside of the accommodation portion 54 to communicate with the outside of the accommodation portion 54. The connection port 60 is, for example, a slit. The fan 52 is connected to the control board 46 through the connection port 60.

[0067] The duct 53 has a formed portion 61. The formed portion 61 is provided outside the accommodating portion 54. In one example, the formed portion 61 is adjacent to the first frame 29. More specifically, the formed portion 61 is located between the first frame 29 and the accommodating portion 54. The formed portion 61 is adjacent to the accommodating portion 54. The formed portion 61 extends from the accommodating portion 54 to approach the first frame 29. The formed portion 61 extends from the opposing wall 59 to approach the mounting surface 30.

[0068] The forming portion 61 is a portion that forms the accommodation space 62. The accommodation space 62 is a space formed between the first frame 29 and the accommodation portion 54. In other words, the accommodation space 62 is a space outside the accommodation portion 54. Therefore, the accommodation space 62 is less likely to interfere with the air flow in the flow path 55. The accommodation space 62 communicates with the flow path 55 via the connection port 60.

[0069] The forming portion 61 has a plurality of side walls. The forming portion 61 has a first side wall 63 and a second side wall 64. The first side wall 63 extends from the opposing wall 59 to approach the first frame 29. In one example, the first side wall 63 extends to contact the mounting surface 30. The first side wall 63 extends so as not to form a gap between the mounting surface 30 and the second side wall 64. The second side wall 64 extends from the opposing wall 59 to approach the first frame 29. In one example, the protrusion amount of the second side wall 64 is smaller than the protrusion amount of the first side wall 63. The second side wall 64 includes a portion that does not contact the mounting surface 30. The second side wall 64 extends so as to form a gap between the mounting surface 30 and the second side wall 64. As a result, the second side wall 64 forms an adjacent opening 65 between the mounting surface 30 and the second side wall 64. The adjacent opening 65 is an opening that communicates with the storage space 62. The protrusion amount of the entire second side wall 64 does not have to be smaller than the protrusion amount of the first side wall 63. At least, the protrusion amount of the portion where the adjacent opening 65 is formed needs to be smaller than the protrusion amount of the first side wall 63.

[0070] The first side wall 63 and the second side wall 64 are side walls that face each other. In one example, the first side wall 63 and the second side wall 64 face each other in the vertical direction D3. The first side wall 63 is located higher than the second side wall 64. The first side wall 63 and the second side wall 64 define the storage space 62.

[0071] The forming portion 61 may have a third side wall 66 and a fourth side wall 67. The third side wall 66 extends from the opposing wall 59 to approach the first frame 29. In one example, the third side wall 66 extends to contact the mounting surface 30. The third side wall 66 extends so as not to form a gap between the third side wall 66 and the mounting surface 30. The third side wall 66 also defines the first opening 56. The fourth side wall 67 extends from the opposing wall 59 to approach the first frame 29. In one example, the protrusion amount of the fourth side wall 67 is smaller than the protrusion amounts of the first side wall 63, the second side wall 64, and the third side wall 66. The fourth side wall 67 includes a portion that does not contact the mounting surface 30. The fourth side wall 67 extends so as to form a gap between the fourth side wall 67 and the mounting surface 30. As a result, the fourth side wall 67 forms an insertion opening 68 between the fourth side wall 67 and the mounting surface 30. The insertion opening 68 is an opening that communicates with the storage space 62. The insertion opening 68 communicates with the adjacent opening 65. The insertion opening 68 is an opening with a larger area than the adjacent opening 65, the connection opening 60, etc. A continuous opening 69 may open in the fourth side wall 67. The continuous opening 69 is a recess in the fourth side wall 67. The continuous opening 69 is formed to communicate with the connection opening 60. The continuous opening 69 is formed to communicate with the insertion opening 68.

[0072] The third side wall 66 and the fourth side wall 67 are side walls facing each other. In one example, the third side wall 66 and the fourth side wall 67 face each other in the first direction D1. The fourth side wall 67 is located further in the first direction D1 than the third side wall 66. The third side wall 66 and the fourth side wall 67 define the storage space 62. The first side wall 63, the second side wall 64, the third side wall 66, and the fourth side wall 67 define the storage space 62.

[0073] 7 and 8, the housing unit 16 has a harness 71. The harness 71 is connected to the control board 46. The harness 71 is connected to the blower unit 51. More specifically, the harness 71 is connected to the fan 52. The harness 71 transmits a control signal output from the control board 46 to the fan 52.

[0074] The harness 71 extends from the control board 46. The harness 71 extends along the second frame 33. More specifically, the harness 71 extends from the control board 46 along the holding surface 34. The harness 71 passes through the passage opening 32. The harness 71 may extend so as to bypass the edge of the first frame 29, for example, without passing through the passage opening 32.

[0075] The harness 71 extends along the first frame 29. More specifically, the harness 71 extends along the mounting surface 30. In one example, the harness 71 extends from the passage opening 32 along the mounting surface 30. The harness 71 extends from the passage opening 32 toward the blower unit 51. More specifically, the harness 71 extends from the passage opening 32 toward the storage space 62.

[0076] A portion of the harness 71 is housed in the housing space 62. The harness 71 extends through the housing space 62. The harness 71 extends from outside the duct 53 to the housing space 62 by passing through the adjacent port 65. The harness 71 extends from the housing space 62 to the flow path 55 by passing through the connection port 60. In this manner, the harness 71 is connected to the fan 52.

[0077] As shown in Figures 8, 9, and 10, the harness 71 has a first cable 72 and a second cable 73. The first cable 72 extends from the fan 52. The first cable 72 may be configured to be detachable from the fan 52. The second cable 73 extends from the control board 46. The second cable 73 may be configured to be detachable from the control board 46. The first cable 72 and the second cable 73 are connected to each other, thereby connecting the fan 52 to the control board 46. The first cable 72 and the second cable 73 each include, for example, a conductor and a terminal.

[0078] The first cable 72 extends from the fan 52 to pass through the connection port 60. As a result, the first cable 72 is held by the opposing wall 59. The first cable 72 is connected to the second cable 73 in the accommodation space 62.

[0079] The second cable 73 extends from the control board 46 to pass through the passage opening 32. The second cable 73 extends from the passage opening 32 along the mounting surface 30. The second cable 73 extends between the first frame 29 and the power supply fan 44. When the first cover 23 is attached to the first frame 29, the second cable 73 extends between the first frame 29 and the opposing member 26.

[0080] The second cable 73 extends to pass through the adjacent opening 65. At this time, the second cable 73 is held down by the second side wall 64. The second cable 73 is held down by the second side wall 64. This makes it difficult for the second cable 73 to lift up from the first frame 29 from the passage opening 32 to the adjacent opening 65. This allows the second cable 73 to extend along the mounting surface 30. As a result, the risk of the second cable 73 interfering with other members, in particular the opposing member 26, the power supply fan 44, etc., is reduced.

[0081] The harness 71 has a relay connector 74. The relay connector 74 is a connector that connects a first cable 72 and a second cable 73 to each other. The relay connector 74 is connected to the first cable 72. The relay connector 74 is connected to the second cable 73. More specifically, the relay connector 74 is connected to a terminal of the first cable 72 and a terminal of the second cable 73, respectively. The first cable 72 and the second cable 73 may be connected directly without going through the relay connector 74. The relay connector 74 is accommodated in the accommodation space 62. The accommodation space 62 has a volume that can accommodate the relay connector 74.

[0082] The first cable 72 and the second cable 73 are separated during maintenance of the blower unit 51. For example, when performing maintenance on the blower unit 51, the worker removes the first cover 23 from the first frame 29. At this time, the worker may also remove the third cover 27B from the first frame 29. The worker separates the first cable 72 and the second cable 73 by accessing the inside of the housing unit 16. In the housing unit 16, the harness 71 is configured to have an excess length so that the worker can easily separate the first cable 72 and the second cable 73. The excess length of the harness 71 allows the worker to pull the harness 71 from inside the housing unit 16 to outside the housing unit 16. In one example, the harness 71 has an excess length so that the relay connector 74 is pulled out outside the housing unit 16.

[0083] If the harness 71 has excess length, it becomes difficult for the harness 71 to fit inside the housing unit 16. In this case, the harness 71 is likely to interfere with other components. For example, the harness 71 is likely to interfere with the opposing member 26. In particular, when the first cover 23 is attached to the first frame 29, the harness 71 is likely to be pinched between the opposing member 26 and the first board unit 41. In this case, there is a risk that the harness 71 will be damaged.

[0084] After connecting the first cable 72 and the second cable 73 to each other, the worker pushes the harness 71 into the accommodation space 62. That is, the worker pushes the excess portion of the harness 71 into the accommodation space 62. More specifically, the worker pushes the relay connector 74, the first cable 72, and the second cable 73 into the accommodation space 62 through the insertion port 68. The worker pushes the first cable 72 into the accommodation space 62 so that the first cable 72 passes through the connection port 60. The worker pushes the second cable 73 into the accommodation space 62 so that the second cable 73 passes through the adjacent port 65. In this way, the excess portion of the harness 71 is accommodated in the accommodation space 62. The excess portion of the harness 71 is accommodated in the accommodation space 62 in a curved state. This reduces the risk of the harness 71 interfering with other components.

[0085] The harness 71 may be deformed and spread out in the accommodation space 62 due to the reaction force. In response to this, the fourth side wall 67 holds down the harness 71. Therefore, the harness 71 is less likely to jump out of the accommodation space 62.

[0086] The housing unit 16 may have a clamp 75. The clamp 75 holds the harness 71. In one example, the clamp 75 holds the second cable 73. The clamp 75 is attached to the first frame 29. The clamp 75 is attached so as to fit within the passage opening 32. This makes it possible to prevent the second cable 73 from rubbing against the passage opening 32. The second cable 73 is less likely to slacken between the control board 46 and the first frame 29. For example, the second cable 73 is more likely to extend along the holding surface 34 from the control board 46 to the passage opening 32.

[0087] The clamp 75 may not necessarily be attached to the first frame 29, and the relay connector 74 may be attached to the first frame 29. For example, the relay connector 74 may be attached so as to fit into the passage opening 32. In this case, the first cable 72 extends along the attachment surface 30 from the adjacent opening 65 to the passage opening 32. The harness 71 is configured so that the first cable 72 has an excess portion. The excess portion of the first cable 72 is accommodated in the accommodation space 62. Also, a relay connector different from the relay connector 74 may be attached to the first frame 29. In this case, the harness 71 may have cables connected to the relay connector and the relay connector 74, in addition to the first cable 72 and the second cable 73.

[0088] The clamp 75 may be provided in a portion other than the passage opening 32. As an example, by providing a clamp between the passage opening 32 and the accommodation space 62, the second cable 73 can be made less likely to slacken between the control board 46 and the first frame 29. For example, the second cable 73 can easily extend along the mounting surface 30 from the passage opening 32 to the adjacent opening 65.

[0089] <Actions and Effects of the Example> Next, the operation and effects of the above embodiment will be described. (1) The forming portion 61 forms the accommodation space 62 that accommodates a portion of the harness 71. According to the above configuration, the excess portion of the harness 71 is accommodated in the accommodation space 62, which makes it easier for the harness 71 to extend along the first frame 29. This reduces the risk of the harness 71 interfering with other components. Furthermore, because the accommodation space 62 is formed by a portion of the duct 53 without using a component such as a clamp, the number of parts can be reduced, resulting in a simple configuration.

[0090] (2) The forming portion 61 is provided outside the housing portion 54. According to the above configuration, the housing space 62 is a space outside the housing portion 54, so the air moved by the fan 52 is less likely to flow into the housing space 62. This reduces the risk that the harness 71 will affect the flow of air.

[0091] (3) The amount of protrusion of the second side wall 64 is smaller than the amount of protrusion of the first side wall 63. According to the above configuration, the harness 71 can enter the accommodation space 62 through the gap between the second side wall 64 and the first frame 29. At this time, the second side wall 64 presses down on the harness 71. By the second side wall 64 pressing down on the harness 71, the harness 71 is less likely to lift up from the first frame 29.

[0092] (4) The facing member 26 faces the mounting surface 30 when the first cover 23 is attached to the first frame 29. According to the above configuration, the harness 71 is less likely to lift up from the first frame 29, reducing the risk of the harness 71 interfering with the facing member 26. In particular, when the first cover 23 is attached to the first frame 29, the risk of the harness 71 coming into contact with the facing member 26 is reduced.

[0093] (5) The opposing member 26 is positioned to face the passage opening 32. According to the above configuration, even when the harness 71 extends between the first frame 29 and the opposing member 26, the worker can easily perform maintenance on the harness 71 by pulling the harness 71 out of the accommodation space 62.

[0094] (6) The forming portion 61 has a fourth side wall 67. According to the above configuration, the fourth side wall 67 reduces the risk of the harness 71 jumping out of the accommodation space 62. Furthermore, the protrusion amount of the fourth side wall 67 is smaller than the protrusion amount of the first side wall 63, the protrusion amount of the second side wall 64, and the protrusion amount of the third side wall 66. According to the above configuration, the harness 71 can be easily accommodated in the accommodation space 62.

[0095] (7) The accommodation space 62 has a volume large enough to accommodate the relay connector 74. According to the above configuration, an operator can easily perform maintenance on the harness 71 by pulling out the relay connector 74 from the accommodation space 62.

[0096] (8) The duct 53 communicates with the frame space A1. According to the above configuration, the risk of the frame space A1 becoming too hot can be reduced. (9) The duct 53 communicates with the flow space S1. According to the above configuration, the fan 52 can circulate the air in the flow space S1.

[0097] <Example of change> The above embodiment can be modified as follows: The above embodiment and the following modifications can be combined with each other within the scope of technical compatibility.

[0098] 11 and 12, the protrusion amount of the second side wall 64 may be equal to the protrusion amount of the first side wall 63. In this modification, the second side wall 64 extends so as to contact the mounting surface 30. An accommodating opening 76 opens in the second side wall 64. The accommodating opening 76 communicates with the accommodating space 62. The accommodating opening 76 is, for example, a groove extending in the first direction D1. The harness 71 extends into the accommodating space 62 through the accommodating opening 76. More specifically, the second cable 73 extends into the accommodating space 62 through the accommodating opening 76. This holds the second cable 73 in place on the second side wall 64. As a result, the second cable 73 is less likely to lift up from the first frame 29.

[0099] The accommodating opening 76 may be formed at the tip of the second side wall 64 that comes into contact with the mounting surface 30. The accommodating opening 76 may be, for example, a groove extending in the second direction D2. When the tip of the second side wall 64 comes into contact with the mounting surface 30, the mounting surface 30 and the second side wall 64 cause the accommodating opening 76 to function as a hole. In this case, the worker passes the harness 71 through the accommodating opening 76 before attaching the duct 53 to the mounting surface 30.

[0100] The accommodation space 62 does not necessarily have to be formed by the duct 53, but may be formed in any object to which the harness 71 is connected. That is, the accommodation space 62 may be applied to an electrical component other than the blower unit 51.

[0101] The liquid ejected by the recording unit 21 is not limited to ink, and may be, for example, a liquid in which particles of a functional material are dispersed or mixed in a liquid. For example, the recording unit 21 may eject a liquid containing, in a dispersed or dissolved form, a material such as an electrode material or a pixel material used in the manufacture of liquid crystal displays, electroluminescent displays, and surface-emitting displays.

[0102] <Technical philosophy> The technical concepts and effects that can be understood from the above-described embodiment and modified examples will be described below.

[0103] (A) A housing unit includes a frame, a blower unit attached to the frame, a control board that controls the blower unit, and a harness that extends along the frame and is connected to the control board and the blower unit. The blower unit has a fan and a duct that houses the fan. The duct has a forming portion that, together with the frame, forms a storage space that houses a portion of the harness. With the above configuration, the excess length of the harness is stored in the storage space, making it easier for the harness to extend along the frame. This reduces the risk of the harness interfering with other components.

[0104] (B) In the above-mentioned housing unit, the duct may have a housing portion that houses the fan therein, and the forming portion may be provided outside the housing portion. With this configuration, the housing space is a space outside the housing portion, so air moved by the fan is less likely to flow into the housing space. This reduces the risk that the harness will affect the flow of air.

[0105] (C) In the above-mentioned housing unit, the storage portion may have an opposing wall facing the frame, and the forming portion may have a first side wall extending from the opposing wall so as to approach the frame, and a second side wall extending from the opposing wall so as to approach the frame, the first side wall and the second side wall facing each other to define the storage space, and the protrusion amount of the second side wall may be smaller than the protrusion amount of the first side wall. According to the above-mentioned configuration, the harness can enter the storage space through a gap between the second side wall and the frame. At this time, the second side wall holds the harness. By the second side wall holding the harness, the harness is less likely to lift up from the frame.

[0106] (D) In ​​the above-mentioned housing unit, the storage portion may have an opposing wall facing the frame, and the forming portion may have a first side wall extending from the opposing wall so as to approach the frame, and a second side wall extending from the opposing wall so as to approach the frame, the first side wall and the second side wall facing each other to form the storage space, and the second side wall may have a storage opening communicating with the storage space. According to the above-mentioned configuration, the harness can enter the storage space through the storage opening. At this time, the second side wall holds the harness. By holding the harness in the second side wall, the harness is less likely to lift up from the frame.

[0107] (E) The housing unit may include a cover attached to the frame, the frame having a mounting surface to which the duct is attached, the harness extending along the mounting surface, and the cover having an opposing member that faces the mounting surface when the cover is attached to the frame. This configuration reduces the likelihood of the harness interfering with the opposing member by making the harness less likely to float up from the frame. In particular, when the cover is attached to the frame, the likelihood of the harness coming into contact with the opposing member is reduced.

[0108] (F) In the above housing unit, the frame may have a passage opening through which the harness passes, the harness extending from the passage opening toward the storage space, and the opposing member may be positioned to face the passage opening. According to the above configuration, even when the harness extends between the frame and the opposing member, an operator can easily perform maintenance on the harness by pulling the harness out of the storage space.

[0109] (G) In the above housing unit, the storage portion has an opposing wall facing the frame, and the forming portion has a first side wall extending from the opposing wall so as to approach the frame, a second side wall extending from the opposing wall so as to approach the frame, a third side wall extending from the opposing wall so as to approach the frame, and a fourth side wall extending from the opposing wall so as to approach the frame, wherein the first side wall and the second side wall face each other, and the third side wall and the fourth side wall face each other, the first side wall, the second side wall, the third side wall, and the fourth side wall define the storage space, and a protrusion amount of the fourth side wall may be smaller than a protrusion amount of the first side wall, a protrusion amount of the second side wall, and a protrusion amount of the third side wall. According to the above configuration, the fourth side wall reduces the risk of the harness jumping out of the storage space.

[0110] (H) In the above housing unit, the harness may include a first cable extending from the fan, a second cable extending from the control board, and a relay connector connected to the first cable and the second cable, and the accommodation space may have a volume large enough to accommodate the relay connector. According to the above configuration, a worker can easily perform maintenance on the harness by pulling out the relay connector from the accommodation space.

[0111] (I) In the above housing unit, the frame may be a first frame, the housing unit may include a second frame, the control board may be attached to the second frame, and the duct may communicate with a space defined by the first frame and the second frame. With the above configuration, it is possible to reduce the risk of the space defined by the first frame and the second frame becoming too hot.

[0112] (J) The housing unit may include a power supply board connected to the control board, the frame may have a mounting surface to which the duct is attached, the power supply board may be positioned to form a flow space through which air flows between the power supply board and the mounting surface, and the duct may communicate with the flow space. According to the above configuration, the fan can circulate the air in the flow space.

[0113] (K) A recording device includes the above-mentioned housing unit and a recording section housed in the housing unit for recording an image on a medium. According to the above-mentioned configuration, the same effects as those of the above-mentioned housing unit can be obtained.

[0114] (L) A recording device includes the above-mentioned housing unit and a recording section housed in the housing unit for recording an image on a medium. According to the above-mentioned configuration, the same effects as those of the above-mentioned housing unit can be obtained. [Explanation of symbols]

[0115] 11...recording device, 12...device main body, 13...processing section, 14...reading section, 15...operation section, 16...casing unit, 17...front surface, 18...rear surface, 19...first side surface, 20...second side surface, 21...recording section, 22...loading section, 23...first cover, 24...cover member, 25...ventilation hole, 26...opposing member, 27A...second cover, 27B...third cover, 28...frame section, 29...first frame, 30...mounting surface, 31...through hole, 32...passage hole, 33...second frame, 34...holding surface, 35...third frame, 36...first part, 37...second part, 41...first board unit, 42...power supply board, 43...power supply case, 44...power supply fan, 45...second board unit , 46...control board, 47...control case, 51...blower unit, 52...fan, 53...duct, 54...accommodation portion, 55...flow path, 56...first opening, 57...second opening, 58...third opening, 59...opposing wall, 60...connection port, 61...forming portion, 62...accommodation space, 63...first side wall, 64...second side wall, 65...adjacent port, 66...third side wall, 67...fourth side wall, 68...insertion port, 69...continuous port, 71...harness, 72...first cable, 73...second cable, 74...relay connector, 75...clamp, 76...accommodation port, A1...frame space, D1...first direction, D2...second direction, D3...vertical direction, M1...medium, S1...flow space, S2...air space.

Claims

1. The frame and a blower unit attached to the frame; a control board for controlling the air blowing unit; a harness extending along the frame and connected to the control board and the blower unit, The blower unit is With fans, a duct that houses the fan, The duct has a forming portion that forms, together with the frame, a housing space for housing a part of the harness.

2. the duct has an accommodation portion that accommodates the fan therein; The housing unit according to claim 1 , wherein the forming portion is provided outside the accommodating portion.

3. the housing portion has an opposing wall that faces the frame, The forming portion is a first side wall extending from the opposing wall so as to approach the frame; a second side wall extending from the opposing wall so as to approach the frame; The first side wall and the second side wall are Opposite each other, defining the receiving space; The housing unit according to claim 2 , wherein the second side wall has a smaller protrusion amount than the first side wall.

4. the housing portion has an opposing wall that faces the frame, The forming portion is a first side wall extending from the opposing wall so as to approach the frame; a second side wall extending from the opposing wall so as to approach the frame; The first side wall and the second side wall are Opposite each other, defining the receiving space; The housing unit according to claim 2 , wherein the second side wall has an opening communicating with the storage space.

5. a cover attached to the frame; the frame has a mounting surface to which the duct is attached; The harness extends along the mounting surface, 4. The housing unit according to claim 3, wherein the cover has an opposing member that faces the mounting surface when the cover is attached to the frame.

6. The frame has a passage opening through which the harness passes, The harness extends from the passage opening toward the accommodation space, The housing unit according to claim 5 , wherein the opposing member is positioned so as to face the passage opening.

7. the housing portion has an opposing wall that faces the frame, The forming portion is a first side wall extending from the opposing wall so as to approach the frame; a second side wall extending from the opposing wall so as to approach the frame; a third side wall extending from the opposing wall so as to approach the frame; a fourth side wall extending from the opposing wall so as to approach the frame; the first side wall and the second side wall face each other, the third side wall and the fourth side wall face each other, the first side wall, the second side wall, the third side wall, and the fourth side wall define the accommodation space; 3. The housing unit according to claim 2, wherein the amount of protrusion of the fourth side wall is smaller than the amount of protrusion of the first side wall, the amount of protrusion of the second side wall, and the amount of protrusion of the third side wall.

8. The harness is a first cable extending from the fan; a second cable extending from the control board; a relay connector connected to the first cable and the second cable, 8. The housing unit according to claim 1, wherein the accommodation space has a volume large enough to accommodate the relay connector.

9. the frame is a first frame, the housing unit includes a second frame; the control board is attached to the second frame, 8. The housing unit according to claim 1, wherein the duct communicates with a space defined by the first frame and the second frame.

10. a power supply board connected to the control board; the frame has a mounting surface to which the duct is attached; the power supply substrate is positioned to form a flow space through which air flows between the power supply substrate and the mounting surface; The housing unit according to any one of claims 1 to 7, wherein the duct communicates with the flow space.

11. The housing unit according to claim 10; a recording unit housed in the housing unit for recording an image on a medium;

12. A housing unit according to any one of claims 1 to 7; a recording unit housed in the housing unit for recording an image on a medium;

Images