Recording device

Abstract

Shorten the cable routing within the device. [Solution] A recording device 10 comprising a recording unit 18 for recording on a medium, a head control unit 90 for controlling the recording unit 18, a frame 101 located between the recording unit 18 and the head control unit 90 and demarcating the area where the recording unit 18 is located from the area where the head control unit 90 is located, and a first cable 111 for electrically connecting the recording unit 18 and the head control unit 90, wherein the head control unit 90 is mounted on the frame 101, and the head control unit 90 has a first substrate 91 and a second substrate 92, and at least a portion of the surface 93 of the first substrate 91 and the surface 93 of the second substrate 92 face each other.

Description

Technical Field

[0001] The present invention relates to a recording apparatus.

Background Art

[0002] Conventionally, various recording apparatuses have been used, which include a recording unit that records on a medium, a head control unit that controls the recording unit, and a cable that electrically connects the recording unit and the head control unit. Among these, there is a recording apparatus that includes a frame that partitions an arrangement area of the recording unit and an arrangement area of the head control unit. For example, Patent Document 1 discloses a recording apparatus including a recording head, a control unit that controls the recording head, a flat cable that electrically connects the recording head and the control unit, and a frame that partitions an arrangement area of the recording head and an arrangement area of the control unit.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the recording apparatus of Patent Document 1, the control unit is provided on a rotatable door with respect to the frame, and since it is necessary to route the flat cable near the rotation axis of the door and then further route it from near the rotation axis inside the apparatus, the flat cable is long. When a cable that electrically connects a recording unit and a head control unit, such as the flat cable of the recording apparatus of Patent Document 1, becomes long, noise is likely to occur and the cost may increase.

Means for Solving the Problems

[0005] To solve the above problems, the present invention provides a recording device comprising: a recording unit having a head for discharging liquid and recording on a medium; a head control unit for controlling the recording unit; a frame located between the recording unit and the head control unit and demarcating the area where the recording unit is located from the area where the head control unit is located; and a first cable for electrically connecting the recording unit and the head control unit, wherein the head control unit is mounted on the frame, and the head control unit has a first substrate and a second substrate, and at least a portion of the surfaces of the first substrate and the second substrate face each other in opposing directions. [Brief explanation of the drawing]

[0006] [Figure 1] A perspective view of a recording device according to one embodiment of the present invention, viewed from the front. [Figure 2] A schematic diagram, viewed from the front, showing the transport path of the recording device in Figure 1. [Figure 3] Figure 1 is a perspective view of the recording device as seen from the rear. [Figure 4] Rear view of the control unit of the recording device shown in Figure 1. [Figure 5] Figure 1 is a plan view of the control unit of the recording device. [Figure 6] A side view of the control unit of the recording device shown in Figure 1. [Figure 7] Front view of the control unit of the recording device shown in Figure 1. [Figure 8] Figure 1 is a bottom view of the control unit of the recording device. [Figure 9] Rear view of the area around the mounting area of ​​the control unit of the recording device shown in Figure 1. [Figure 10] Figure 1 is a perspective view of the area around the mounting region of the control unit on the back side of the frame of the recording device. [Figure 11] A perspective view of the area surrounding the mounting region of the control unit of the recording device shown in Figure 1. [Figure 12] A perspective view of the area surrounding the mounting region of the control unit of the recording device shown in Figure 1, viewed from a different angle than Figure 11. [Figure 13] A side view of the area surrounding the mounting area of ​​the control unit of the recording device shown in Figure 1. [Figure 14]Rear view of the area around the cooling section of the recording device shown in Figure 1. [Figure 15] Figure 1 is a perspective view showing the internal configuration of the recording device. [Figure 16] Figure 1 is a perspective view showing the area around the mounting region for the media storage cassette of the recording device. [Figure 17] Figure 1 is a rear view showing the area around the mounting area for the media storage cassette of the recording device. [Figure 18] Figure 1 is a perspective view showing the area around the sheet holding section of the recording device. [Figure 19] A perspective view showing the area around the sheet holding section of the recording device in Figure 1, viewed from a different angle than Figure 18. [Figure 20] A perspective view showing the area around the sheet holding section of the recording device in Figure 1, viewed from a different angle than Figures 18 and 19. [Figure 21] A rear view showing the lower part of the ink cartridge of the recording device in Figure 1. [Figure 22] Figure 1 is a perspective view of the area around the mounting region of the control unit on the frame of the recording device, showing the clamps that hold the tubes and cables. [Figure 23] Figure 22 is a perspective view showing a clamp that holds the tube and cable, and a cover that covers the tube and cable. [Modes for carrying out the invention]

[0007] The present invention will be described in general terms below. A recording device according to a first aspect of the present invention comprises a recording unit having a head for discharging liquid and recording on a medium, a head control unit for controlling the recording unit, a frame located between the recording unit and the head control unit and demarcating the area where the recording unit is located from the area where the head control unit is located, and a first cable for electrically connecting the recording unit and the head control unit, wherein the head control unit is mounted on the frame, and the head control unit has a first substrate and a second substrate, and at least a portion of the surfaces of the first substrate and the second substrate face each other in opposing directions.

[0008] According to this aspect, the head control unit is attached to the frame. Thus, by attaching the head control unit to the frame, the cable wiring within the device can be shortened. Therefore, the generation of noise can be suppressed, and the increase in cost can be suppressed.

[0009] The recording apparatus according to the second aspect of the present invention is an aspect subordinate to the first aspect, wherein the surfaces of the first substrate and the second substrate extend in a direction intersecting the frame.

[0010] According to this aspect, the surfaces of the first substrate and the second substrate extend in a direction intersecting the frame. By adopting such a configuration, on both the first substrate and the second substrate, both sides are easily visible and accessible to the user.

[0011] The recording apparatus according to the third aspect of the present invention is an aspect subordinate to the first or second aspect, wherein the first substrate and the second substrate are connected by a board-to-board connector.

[0012] According to this aspect, the first substrate and the second substrate are connected by a board-to-board connector. By adopting such a configuration, the first substrate and the second substrate can be easily connected, and communication, power supply, etc. between the first substrate and the second substrate become possible. Also, the distance between the first substrate and the second substrate can be suppressed, and the enlargement of the device can be suppressed.

[0013] The recording apparatus according to the fourth aspect of the present invention is an aspect subordinate to the third aspect, wherein the length of the electrical component disposed between the first substrate and the second substrate and mounted on the first substrate or the second substrate in the facing direction is smaller than the length of the board-to-board connector in the facing direction.

[0014] According to this embodiment, the length of the electrical components arranged between the first and second substrates in the opposing direction is smaller than the length of the substrate-to-substrate connector in the opposing direction. With this configuration, even when electrical components are arranged between the first and second substrates, the length between the first and second substrates can be suppressed.

[0015] A recording device according to a fifth aspect of the present invention is characterized in that, in an embodiment dependent on any one of the first to fourth aspects, the first substrate has a first region that does not overlap with the second substrate when viewed in the opposing direction, and a connector is provided in the first region.

[0016] According to this embodiment, the first substrate has a first region that does not overlap with the second substrate when viewed in the opposing direction, and a connector is provided in the first region. By providing the connector in the region of the first substrate that does not overlap with the second substrate in this way, it becomes easier to connect a cable to the connector.

[0017] A recording device according to a sixth aspect of the present invention, in an aspect dependent on the fifth aspect, is characterized in that the first substrate has the first region at its end in a first direction, and the first substrate and the second substrate have at least a portion of their ends aligned in a second direction opposite to the first direction.

[0018] According to this embodiment, the first substrate has a first region at its end in a first direction, and the first substrate and the second substrate have at least a portion of their ends aligned in a second direction. This configuration makes it possible to reduce the area occupied by the first substrate and the second substrate within the device, thereby preventing the device from becoming larger.

[0019] A recording device according to a seventh aspect of the present invention is characterized in that, in an embodiment dependent on any one of the first to third aspects, the first substrate has a first region that does not overlap with the second substrate when viewed in the opposing direction, the second substrate has a second region that does not overlap with the first substrate when viewed in the opposing direction, and connectors are provided in the first region and the second region.

[0020] According to this embodiment, the first substrate has a first region that does not overlap with the second substrate when viewed in the opposing direction, and the second substrate has a second region that does not overlap with the first substrate when viewed in the opposing direction, and connectors are provided in the first region and the second region. By providing connectors in the region of the first substrate that does not overlap with the second substrate in this way, it becomes easier to connect cables to the connectors.

[0021] A recording device according to the eighth aspect of the present invention, in an aspect dependent on any one of the first to seventh aspects, is characterized in that the first substrate and the second substrate each have a first surface on which electrical components are mounted and a second surface opposite to the first surface, the second surface of the first substrate and the first surface of the second substrate face each other, the first substrate has a first region that does not overlap with the second substrate when viewed in the opposing direction, and a connector is provided on the second surface of the first region to which the first cable is connected.

[0022] According to this embodiment, both the first and second substrates have a first surface and a second surface on which electrical components are mounted, the second surface of the first substrate and the first surface of the second substrate face each other, the first substrate has a first region that does not overlap with the second substrate when viewed in the opposing direction, and a connector to which the first cable is connected is provided on the second surface of the first region. With this configuration, the recording unit and the first substrate of the head control unit can be connected. In addition, by providing the connector in a region where the first substrate and the second substrate do not overlap (face each other), it becomes easier to connect the cable to the connector.

[0023] A recording device according to a ninth aspect of the present invention, in an aspect dependent on the eighth aspect, is characterized in that the second substrate has a second region that overlaps with the first substrate when viewed in the opposing direction, and a connector to which the first cable is connected is provided on the second surface of the second region.

[0024] According to this embodiment, the second substrate has a second region that overlaps with the first substrate when viewed in the opposing direction, and a connector to which the first cable is connected is provided on the second surface of the second region. With this configuration, the recording unit and the second substrate of the head control unit can be connected. Since the connector is provided on the second surface of the second substrate that does not face the first substrate, even if the connector is provided on the second region of the second substrate that overlaps with the first substrate, the connection of the first cable becomes easy.

[0025] A recording device according to a tenth aspect of the present invention is characterized in that, in an aspect dependent on the eighth or ninth aspect, the first cable is a flexible flat cable.

[0026] In this embodiment, the first cable is a flexible flat cable. Information transmission between the recording unit and the head control unit has a significant impact on recording accuracy, but connecting them with a flexible flat cable makes it more resistant to noise. Furthermore, this configuration allows the first cable to be shortened, which in turn makes it particularly resistant to noise.

[0027] A recording device according to an eleventh aspect of the present invention is characterized in that, in an embodiment dependent on the eighth or ninth aspect, the first cable has a connecting board connected to the first substrate, and the first substrate and the connecting board are connected by a substrate-to-substrate connector.

[0028] According to this embodiment, the first cable has a connecting board that is connected to the first board, and the first board and the connecting board are connected by a board-to-board connector. This configuration improves maintainability.

[0029] A recording device according to a twelfth aspect of the present invention, in an aspect dependent on any one of the first to eleventh aspects, comprises a main unit control for controlling the main unit of the device, and a second cable for electrically connecting the head unit control and the main unit control, wherein the first substrate and the second substrate each have a first surface on which electrical components are mounted and a second surface opposite to the first surface, the second surface of the first substrate and the first surface of the second substrate face each other, the second substrate has a third region that does not overlap with the first substrate when viewed in the opposing direction, and a connector to which the second cable is connected is provided on the first surface of the third region.

[0030] In this embodiment, the second surface of the first substrate and the first surface of the second substrate face each other, the second substrate has a third region that does not overlap with the first substrate when viewed in the opposing direction, and a connector is provided on the first surface of the third region to which a second cable that electrically connects the head control unit and the main unit control unit is connected. With this configuration, the second substrate and the main unit control unit can be connected. Furthermore, by providing the connector in the region of the second substrate that does not overlap with the first substrate, it becomes easier to connect the second cable to the connector.

[0031] A recording device according to a thirteenth aspect of the present invention is characterized in that, in an aspect dependent on the twelfth aspect, the second cable is a USB communication cable.

[0032] In this embodiment, the second cable is a USB communication cable. Information transmission between the second board and the recording unit has a significant impact on recording accuracy, but communication between the first board and the second board has a smaller impact on recording accuracy. Therefore, by connecting the first board and the second board with a USB communication cable, costs can be reduced without degrading recording accuracy.

[0033] A recording device according to a fourteenth aspect of the present invention, in an aspect dependent on any one of the first to thirteenth aspects, comprises a third cable for supplying power to the head control unit, wherein both the first substrate and the second substrate have a first surface on which electrical components are mounted and a second surface opposite to the first surface, the second surface of the first substrate and the first surface of the second substrate face each other, the second substrate has a second region that overlaps with the first substrate when viewed in the opposing direction, and a connector is provided on the second surface of the second region to which the third cable is connected.

[0034] According to this embodiment, the second substrate has a second region that overlaps with the first substrate when viewed in the opposing direction, and a connector is provided on the second surface of the second region to which a third cable that supplies power to the head control unit is connected. With this configuration, power can be supplied. Furthermore, since the connector is provided on the second surface of the second substrate that does not face the first substrate, even if the connector is provided in the region that overlaps with the first substrate, the connection of the third cable becomes easy.

[0035] A recording device according to a 15th aspect of the present invention, in an aspect dependent on any one of the first to 14th aspects, is characterized in that the first substrate and the second substrate each have a first surface on which electrical components are mounted and a second surface opposite to the first surface, and the second surface of the first substrate and the second surface of the second substrate face each other.

[0036] In this embodiment, both the first substrate and the second substrate have a first surface and a second surface on which electrical components are mounted, and the second surface of the first substrate and the second surface of the second substrate face each other. By arranging both the first substrate and the second substrate so that the first surface on which electrical components are mounted faces outwards, it is possible to suppress an increase in the distance between the first substrate and the second substrate.

[0037] A recording device according to the sixteenth aspect of the present invention, in an aspect dependent on any one of the first to fifteenth aspects, is equipped with a substrate mounting section attached to the frame, to which the first substrate and the second substrate are mounted, and is characterized in that a third substrate can be mounted in place of the first substrate in the substrate mounting section.

[0038] According to this embodiment, the frame is equipped with a board mounting section to which a first board and a second board are mounted, and a third board can be mounted in place of the first board in the board mounting section. This configuration makes it easy to replace the boards.

[0039] A recording device according to the 17th aspect of the present invention is characterized in that, in an embodiment dependent on any one of the first to 16th aspects, it comprises a cooling unit attached to the frame for cooling the head control unit, the head control unit has a housing section for housing the first substrate and the second substrate, and the cooling unit cools the inside of the housing section.

[0040] According to this embodiment, the head control unit is provided with a cooling unit attached to the frame for cooling, the head control unit has a housing section for housing a first substrate and a second substrate, and the cooling unit cools the inside of the housing section. With this configuration, the head control unit can be cooled. Furthermore, since the cooling unit and the head control unit are attached to the same frame, the cooling efficiency can be improved compared to when the cooling unit and the head control unit are located in separate positions.

[0041] A recording device according to the 18th aspect of the present invention, in an aspect dependent on the 17th aspect, is characterized in that the cooling unit has an intake section, an exhaust section, and a duct for flowing gas between the intake section and the exhaust section, wherein the intake section is located below the housing section, and the exhaust section is located above the housing section.

[0042] In this embodiment, the cooling unit has an intake section located below the containment section and an exhaust section located above the containment section. With this configuration, by drawing in air from below and exhausting it upward, the gas can be flowed while utilizing the rising airflow, thereby efficiently cooling the head control unit.

[0043] A recording device according to a 19th aspect of the present invention, in an aspect dependent on the sixth aspect, comprises a cooling unit attached to the frame for cooling the head control unit, the head control unit having a housing for housing the first substrate and the second substrate, the cooling unit having an intake section, an exhaust section, and a duct for flowing gas from the intake section through the housing section to the exhaust section, the duct being configured to allow gas to flow into the housing section from the second end of the housing section and to allow gas to flow out from the first end of the housing section.

[0044] According to this embodiment, the cooling duct allows gas to flow into the housing from the end in the second direction of the housing and discharges the gas from the end in the first direction of the housing. With this configuration, the first and second substrates can be cooled more effectively by allowing gas to flow in from the second direction where they are aligned.

[0045] The present invention will now be described in detail. First, an overview of a recording device according to one embodiment of the present invention will be described with reference to Figures 1 to 3. As an example of the recording device of this embodiment, an inkjet printer 10 (hereinafter sometimes simply referred to as printer 10) will be given. In each figure, the XYZ coordinate system indicates that the X-axis direction is the width direction of the medium P in the transport path within the recording device, the Y-axis direction is the length direction of the medium P recorded by the recording unit described later, and the Z-axis direction is the height direction of the device.

[0046] As shown in Figures 1 and 3, the printer 10 is configured as a multifunction device comprising a main unit 12 and a scanner unit 14. The main unit 12 is equipped with a plurality of media storage cassettes 16 for storing media P. Each media storage cassette 16 is detachably attached to the front side of the main unit 12, which is the -X axis side. In this specification, media P refers to paper such as plain paper, cardboard, or photographic paper, as an example.

[0047] Furthermore, in the device body 12, in the device height direction, recording is performed in the recording unit 18 between the scanner unit 14 and the media storage cassette 16. After recording, the media P is discharged from the outlet 23a of the discharge unit 23. A media placement unit 20 is also provided to receive the media P discharged from the outlet 23a.

[0048] As shown in Figure 2, the printer 10 has a media transport path 21 inside the housing 13. The media transport path 21 includes a straight path 22, a face-down ejection path 28, and a feed path 30 connected from the media storage cassette 16 to the straight path 22. Furthermore, the media transport path 21 includes a switchback path 24 and a reversal path 26, enabling so-called double-sided recording, where recording is performed on the second side of the media P after recording on the first side. As shown in Figure 3, a removable lid 80 is provided on the +X side of the housing 13 of the printer 10.

[0049] The feeding path 30 is provided with a feeding roller 32, a pair of separation rollers 33, and a pair of transport rollers 34, in order along the transport direction of the medium P. The feeding roller 32 is driven by a drive source (not shown). The pair of separation rollers 33 separates the medium P by nipping it between the drive roller 33a and the driven roller 33b.

[0050] The transport roller pair 34 consists of a drive roller and a driven roller. Each drive roller is controlled by a main unit control unit 100 located within the main unit 12 via a drive source (not shown). As will be described in detail later, the printer 10 is also equipped with a head control unit 90 that controls the line head 48, and the head control unit 90 is mounted on a frame 101 located on the -X side of the lid 80 shown in Figure 3. In the printer 10 of this embodiment, the main unit control unit 100 and the head control unit 90 are configured to perform the control necessary for the recording operation.

[0051] In the following description, in each pair of conveying rollers described herein, one roller is configured as a driven roller, and the other roller is configured as a driven roller that is rotated by a drive source (not shown). In this embodiment, unless otherwise specified, one roller is configured as a spur having multiple teeth on its outer circumference, and the other roller, the driven roller, is configured as a rubber roller, for example.

[0052] The media P contained in the media storage cassette 16 is supported on a hopper 17 provided inside the media storage cassette 16. The hopper 17 rotates on a pivot shaft 17a provided in the hopper 17, lifting the media P upward. At this time, the feeding roller 32 comes into contact with the uppermost media P supported by the hopper 17, and transports the media P downstream in the transport direction. In this case, the media P below the uppermost media P may also be transported together, but the separation roller pair 33 separates the uppermost media P from the media P below, so that only the uppermost media P is transported downstream in the transport direction.

[0053] A pair of transport rollers 36 is provided downstream of the transport roller pair 34 in the transport direction. In this embodiment, the supply path 30 and the straight path 22 are connected at the position of the transport roller pair 36. In other words, the supply path 30 is set as the path from the media storage cassette 16 to the transport roller pair 36.

[0054] The straight path 22 is configured as a straight-line path, and along the conveying direction, it is provided with a conveying roller pair 36, a conveying mechanism 40 consisting of a drive roller 38, a driven roller 42, and an endless belt 41, a recording unit 18, and a first flap 46. In this embodiment, the straight path 22 is set as the path from the conveying roller pair 36 to the first flap 46.

[0055] The recording unit 18 is equipped with a line head 48. A transport mechanism 40 is provided below the line head 48. In this embodiment, the line head 48 is configured to eject ink onto the recording surface of the medium P when the medium P is transported to a position opposite the line head 48 on the transport mechanism 40, thereby performing recording. The line head 48 is a recording head in which the nozzles that eject ink cover the entire width of the medium P, and is configured as a recording head that can record across the entire width of the medium without movement in the medium width direction. The printer 10 in this embodiment is equipped with a line head 48, but it may also be equipped with a serial type recording head mounted on a carriage that ejects liquid onto the medium while reciprocating in a direction intersecting the medium transport direction to perform recording.

[0056] A conveying mechanism 40, consisting of a drive roller 38, a driven roller 42, and an endless belt 41, is provided opposite the line head 48. A first flap 46 is located downstream in the conveying direction. The first flap 46 is configured to be switchable by a drive mechanism (not shown) to connect the straight path 22 and the switchback path 24, or to connect the straight path 22 and the face-down discharge path 28.

[0057] A second flap 50 is provided above the first flap 46 in the height direction (Z-axis direction) of the device. The second flap 50 is driven by an interlocking mechanism (not shown) in conjunction with the movement of the first flap 46. The posture of the first flap 46 and the second flap 50 is changed by the control of the main unit control unit 100.

[0058] The face-down discharge path 28 extends upward from the straight path 22 in the height direction of the device, while curving and inverting. The face-down discharge path 28 is equipped with a transport roller pair 52, a transport roller pair 54, a transport roller pair 56, a transport roller pair 58, a transport roller pair 60, and a transport roller pair 62 that constitutes the discharge section 23. The face-down discharge path 28 is a path from the first flap 46 to the outlet 23a located downstream in the transport direction of the transport roller pair 62. In other words, the face-down discharge path 28 is a medium transport path 21 connected to the straight path 22, and is a path that sends the medium P that has passed through the recording section 18 to the discharge section 23 with the recording surface of the medium P inverted between the recording section 18 and the discharge section 23.

[0059] The medium P, on which recording has been performed on the recording surface in the recording unit 18, is sequentially nipped by the transport roller pair 52, transport roller pair 54, transport roller pair 56, transport roller pair 58, transport roller pair 60, and transport roller pair 62 in the face-down discharge path 28, starting from the first flap 46 and proceeding in the transport direction, and is transported along the face-down discharge path 28. The medium P is then discharged from the outlet 23a toward the medium placement unit 20.

[0060] The inversion path 26 is a path for inverting the medium P and is equipped with transport roller pairs 70, 72, and 74. After passing through the straight path 22, which is the medium transport path 21 facing the recording unit 18, the medium P passes through the inversion path 26, which inverts the side facing the recording unit 18, and then passes through the straight path 22 again. By passing through the inversion path 26, recording can be performed on both sides of the medium P.

[0061] Here, the specific configuration of the head control unit 90, which is the main part of the printer 10 of this embodiment, will be described with reference to Figures 4 to 14. As described above, the printer 10 of this embodiment includes a recording unit 18 that has a line head 48 for ejecting liquid ink and records on a medium P, and a head control unit 90 that controls the recording unit 18.

[0062] In this embodiment, the printer 10 is equipped with a frame 101, as shown in Figures 9 to 14. The frame 101 is located between the recording unit 18 and the head control unit 90 in the X-axis direction, and separates the area where the recording unit 18 is located from the area where the head control unit 90 is located. Specifically, the +X-direction side surface 101a of the frame 101 is the surface to which the head control unit 90 is attached, and the -X-direction side surface of the frame 101 is the surface opposite to surface 101a and faces the recording unit 18.

[0063] Furthermore, the printer 10 of this embodiment is equipped with a head communication FFC 111 as a first cable, as shown in Figure 4. The head communication FFC 111 electrically connects the recording unit 18 and the head control unit 90. Because the head control unit 90 is mounted on the frame 101, as shown in Figures 9 to 12, it is not necessary to route the flat cable (head communication FFC) for example near the pivot axis of the door and then route it further within the device from near the pivot axis. As a result, the cable wiring within the device can be shortened.

[0064] Here, the head control unit 90, as shown in Figures 4 to 8, has a head drive board 91 as a first board and a head main board 92 as a second board. There are no particular limitations on the first and second boards; the head drive board 91 can be considered as the second board and the head main board 92 as the first board. As shown in Figures 4 to 8, the head drive board 91 and the head main board 92 face each other in opposing directions corresponding to the Z-axis direction, with their respective surfaces 93 facing each other.

[0065] As in the printer 10 of this embodiment, the head control unit 90 is mounted on the frame 101, which shortens the cable wiring within the device. Therefore, noise generation can be suppressed, and costs can be kept down. Furthermore, as in the printer 10 of this embodiment, it is preferable that the head control unit 90 has a first substrate and a second substrate, and that at least a portion of the surfaces of the first substrate and the second substrate face each other in the opposing direction. This is because by configuring the head control unit 90 with multiple substrates and overlapping these substrates, the occupied area of ​​the head control unit 90 can be reduced. Moreover, by configuring the head control unit 90 with multiple substrates, partial replacement of the head control unit 90 becomes easier, for example, by replacing only the first substrate.

[0066] Furthermore, in the printer 10 of this embodiment, as shown in Figure 9 and Figures 11 to 14, the surface 93 of the head drive board 91 and the surface 93 of the head main board 92 extend in the horizontal direction (planar direction extending in the X-axis and Y-axis directions), which is the direction that intersects with the frame 101. With this configuration, both sides of both the first and second boards are easily visible and easily accessible to the user. In this embodiment, the first and second boards are laid out extending in the horizontal direction (the direction that intersects with the frame 101), but the configuration is not limited to this. The first and second boards may also be laid out extending in the vertical direction (the direction along the frame).

[0067] Furthermore, in the printer 10 of this embodiment, as shown in Figure 7, the head drive board 91 and the head main board 92 are connected by a board-to-board connector 94. This configuration allows for easy connection between the first board and the second board, and enables communication and power supply between the first and second boards. In addition, the distance between the first and second boards can be reduced, thereby preventing the device from becoming larger.

[0068] Furthermore, in the printer 10 of this embodiment, as shown in Figure 7, each electrical component of the head main board 92, which is located in the region facing the head drive board 91, is located in the gap between the head drive board 91 and the head main board 92, which are connected in the Z-axis direction via a board-to-board connector 94. In other words, in the printer 10 of this embodiment, the length in the Z-axis direction of an electrical component (for example, L1) that is located between the first board and the second board and mounted on the first board or the second board is smaller than the length L2 of the board-to-board connector 94 in the Z-axis direction. Note that the length L2 of the board-to-board connector 94 in the Z-axis direction can also be expressed as the distance between the head drive board 91 and the head main board 92. With this configuration, even when electrical components are located between the first board and the second board, the length between the first board and the second board in their opposing direction can be suppressed. Examples of electrical components include capacitors, memory, and system-on-a-chip (SOC).

[0069] Furthermore, in the printer 10 of this embodiment, as shown in Figure 8, the head drive board 91 has a region S1 that does not overlap with the head main board 92 when viewed in the Z-axis direction, and a head communication FFC connector 112A, which is a connector for the cable (head communication FFC 111) connected to the recording unit 18, is provided in region S1. If the head drive board 91 is considered as the first board and the head main board 92 as the second board, then the first board has a first region that does not overlap with the second board when viewed in the opposite direction, and the connector is provided in the first region.

[0070] On the other hand, in the printer 10 of this embodiment, as shown in Figures 4, 5, and 7, the head main board 92 has a region S2 that does not overlap with the head drive board 91 when viewed in the Z-axis direction, and a USB communication cable connector 114, which is the connector for the USB communication cable 113 connected to the main unit control unit 100, is provided in region S2. If we consider the head main board 92 as the first board and the head drive board 91 as the second board, then the first board can be described as having a first region that does not overlap with the second board when viewed in the opposite direction, and a connector is provided in the first region.

[0071] In this way, by providing a connector in an area of ​​the first substrate that does not overlap with the second substrate, it becomes easier to connect a cable to the connector. There are no particular limitations on the cable connected to the connector in the area of ​​the first substrate that does not overlap with the second substrate. A different cable from the cable in this embodiment may be connected. In addition, another connector may be provided in an area of ​​the first substrate other than the area that does not overlap with the second substrate. Furthermore, the connector may be provided on either the surface 93 of the first substrate or the second substrate.

[0072] To put the above in other words, in the printer 10 of this embodiment, the first substrate has a first region (for example, regions S1 and S2) that does not overlap with the second substrate when viewed in the Z-axis direction, and the second substrate has a second region (region S3 shown in Figures 5 and 8) that does not overlap with the first substrate when viewed in the Z-axis direction, and a connector is provided in at least one of the first region and the second region. By providing the connector in the region of the first substrate that does not overlap with the second substrate in this way, it becomes easier to connect a cable to the connector.

[0073] To put the above in other words, in the printer 10 of this embodiment, the first substrate has a first region (for example, regions S1 and S2) that does not overlap with the second substrate when viewed in the Z-axis direction, and the second substrate has a second region (region S3 shown in Figures 5 and 8) that does not overlap with the first substrate when viewed in the Z-axis direction, and connectors are provided in the first region and the second region. By providing connectors in the region of the first substrate that does not overlap with the second substrate in this way, it becomes easier to connect cables to the connectors.

[0074] Furthermore, in the printer 10 of this embodiment, as shown in Figures 4, 5, 7, and 8, the head drive board 91 and the head main board 92 are aligned in the -Y direction. In other words, in the printer 10 of this embodiment, the head main board 92, as the first board, has a region S2 as the first region at its end in the first direction corresponding to the +Y direction, and the head drive board 91 and the head main board 92 are aligned at their ends in the second direction corresponding to the -Y direction. By configuring the first board to have a first region at its end in the first direction, and the first and second boards to have at least a portion of their ends aligned in the second direction, the area occupied by the first and second boards within the device can be reduced, and the size of the device can be suppressed. In this embodiment, the ends are aligned in the -Y direction, but configurations in which the ends are aligned in the +Y direction or in the X-axis direction are also possible. Furthermore, it is preferable that the entire edge of the end in the second direction is aligned, but a configuration in which only a portion of the end in the second direction is aligned is also possible.

[0075] The head drive board 91 and the head main board 92 both have a surface 93, as shown in Figures 4 to 8, which includes a first surface 93A on which electrical components are mounted, and a second surface 93B opposite to the first surface 93A. Here, the second surface 93B of the head drive board 91 and the first surface 93A of the head main board 92 face each other. If we consider the head drive board 91 as the first board and the head main board 92 as the second board, as shown in Figure 8, the head drive board 91 as the first board has a first region (region S1) that does not overlap with the head main board 92 when viewed in the Z-axis direction, and a head communication FFC connector 112A is provided on the second surface 93B of region S1 to which the head communication FFC 111A, which serves as the first cable, is connected. With this configuration, the printer 10 of this embodiment can connect the recording unit 18 and the first board (head drive board 91) of the head control unit 90. Furthermore, by providing a connector (head communication FFC connector 112A) in region S1 where the first and second boards do not overlap (face each other), it becomes easier to connect cables to the connector.

[0076] Furthermore, in the printer 10 of this embodiment, as shown in Figures 5 and 8, the second board (head main board 92) has a second region (region S3) that overlaps with the first board (head drive board 91) when viewed in the Z-axis direction, and a connector (head communication FFC connector 112B) to which the head communication FFC 111B as the first cable is connected is provided on the second surface 93B of region S3. With this configuration, the printer 10 of this embodiment can connect the recording unit 18 and the second board (head main board 92) of the head control unit 90. Since the connector (head communication FFC connector 112B) is provided on the second surface 93B of the second board (head main board 92) that does not face the first board (head drive board 91), even if the connector (head communication FFC connector 112B) is provided on the region S3 of the second board that overlaps with the first board, the connection of the first cable (head communication FFC 111B) becomes easy.

[0077] Furthermore, in the printer 10 of this embodiment, the head communication FFC111A and head communication FFC111B, which are the first cables for head communication, are both flexible flat cables. Information transmission between the recording unit 18 and the head control unit 90 has a significant impact on recording accuracy, but connecting them with a flexible flat cable makes it more resistant to noise. In addition, this configuration allows the first cable to be shortened, which further enhances its resistance to noise.

[0078] Furthermore, in the printer 10 of this embodiment, as shown in Figures 9, 11, and 12, when the head main board 92 is considered as the first board, the head communication FFC 111A, which is the first cable, has a connection board 150 that is connected to the head main board 92, which is the first board. The head main board 92 and the connection board 150 are connected by a head communication FFC connector 112A, which is also a board-to-board connector.

[0079] Thus, by having a connecting board to which the first cable is connected to the first board, and by connecting the first board and the connecting board via a board-to-board connector, maintainability can be improved. Furthermore, it is possible to avoid inserting cables such as FFCs at an angle. This is particularly effective when the connector is located on a downward-facing surface.

[0080] Furthermore, as described above, the printer 10 of this embodiment includes a main unit control unit 100 that controls the main unit of the device, and a USB communication cable 113 as a second cable that electrically connects the head control unit 90 and the main unit control unit 100. As shown in Figures 4 and 7, a USB communication cable connector 114 is provided in area S2 of the head main board 92. That is, both the head drive board 91 and the head main board 92 have a first surface 93A on which electrical components are mounted, and a second surface 93B which is the surface opposite to the first surface 93A, with the second surface 93B of the head drive board 91 and the first surface 93A of the head main board 92 facing each other. The head main board 92 has an area S2 as a third area that does not overlap with the head drive board 91 when viewed in the Z-axis direction, and a connector (USB communication cable connector 114) to which the USB communication cable 113 is connected is provided on the first surface 93A of area S2. With this configuration, the second board and the main unit control unit 100 can be connected. Furthermore, by providing a connector in the area of ​​the second board that does not overlap with the first board, it becomes easier to connect the second cable to the connector. Note that a connector may also be provided in the area of ​​the second board that overlaps with the first board.

[0081] Here, information transmission between the second board and the recording unit 18 has a significant impact on recording accuracy, but communication between the first board and the second board has a smaller impact on recording accuracy. Therefore, by using a low-cost USB communication cable 113 for the second cable and connecting the first board and the second board with the USB communication cable 113, costs can be reduced without degrading recording accuracy.

[0082] Furthermore, as shown in Figure 4, the printer 10 of this embodiment is equipped with a power cable 115 as a third cable that supplies power to the head control unit 90. As shown in Figures 4 and 8, a power cable connector 116 to which the power cable 115 is connected is provided on the second surface 93B of region S3 of the head main board 92. The printer 10 of this embodiment can be supplied with power with this configuration. In addition, since the power cable connector 116 is provided on the second surface 93B of the head main board 92 that does not face the head drive board 91, even if the power cable connector 116 is provided in a region that overlaps with the head drive board 91, the connection of the power cable 115 becomes easy.

[0083] In this embodiment, the printer 10, as shown in Figures 4 to 8, has a configuration in which the second surface 93B of the head drive board 91 and the first surface 93A of the head main board 92 face each other in region S3. In other words, the first surface 93A of the first board on which electrical components are mounted faces the second surface 93B of the second board. However, the configuration is not limited to this. That is, both the first board and the second board have a first surface 93A on which electrical components are mounted and a second surface 93B which is the surface opposite to the first surface 93A, and the second surface 93B of the first board faces the second surface 93B of the second board. In this way, by having the first surface 93A on which electrical components are mounted face outwards on both the first and second boards, it is possible to suppress the increase in the distance between the first board and the second board. Note that the side on which the main electrical components are mounted is designated as the first side 93A, but electrical components may also be mounted on the second side. In that case, the side on which taller components are mounted can be considered the first side. Alternatively, the side with the largest number of mounted electrical components may be considered the first side. Or, the side on which the electrical components that play the primary role are mounted may be considered the first side.

[0084] Furthermore, as shown in Figure 13, the printer 10 of this embodiment includes a board mounting sheet metal 121 attached to the frame 101, which serves as a board mounting section to which the head drive board 91 and head main board 92, representing the first and second boards, are mounted. The board mounting sheet metal 121 can be used to mount a new third board consisting of a head drive board 91 and a head main board 92 in place of the originally mounted head drive board 91 and head main board 92. For example, if the first board is the head drive board 91, the control of the line head 48 can be changed by replacing the head drive board 91. This configuration reduces the number of new parts. The printer 10 of this embodiment has such a configuration that makes it easy to replace boards. Note that the replaceable board must be provided with a connector that can connect to the same cable as the board before replacement. In this case, the third board may have different electrical components mounted on it than the first and second boards.

[0085] As shown in Figure 13, the head drive board 91 and the head main board 92, which are the first and second boards, are fixed to the board mounting sheet metal 121 with screws 122. The board mounting sheet metal 121 is fixed to the frame 101 with screws 123. However, there are no particular limitations on the method of fixing the first and second boards to the frame 101.

[0086] Furthermore, as shown in Figure 14, the printer 10 of this embodiment includes a cooling unit 130 attached to the frame 101 for cooling the head control unit 90. The head control unit 90 also has a housing section 131 that houses the head drive board 91 and the head main board 92. The housing section 131 does not need to completely enclose the head drive board 91 and the head main board 92. The cooling unit 130 is configured to cool the inside of the housing section 131. With this configuration, the printer 10 of this embodiment can cool the head control unit 90. In addition, since the cooling unit 130 and the head control unit 90 are attached to the same frame 101, the cooling efficiency can be improved compared to when the cooling unit 130 and the head control unit 90 are located in separate positions.

[0087] In detail, the cooling unit 130, as shown in Figure 14, has an intake unit 132, an exhaust unit 133, and a duct 134 for circulating gas between the intake unit 132 and the exhaust unit 133. The intake unit 132 is located below the housing unit 131, and the exhaust unit 133 is located above the housing unit 131. The printer 10 in this embodiment has this configuration, and by drawing in air from below and exhausting it upward, the gas can be circulated while utilizing the rising airflow caused by the heated gas, so the head control unit 90 can be cooled efficiently.

[0088] To explain the above from a different perspective, as shown in Figure 14, the duct 134 is configured to allow gas to flow into the housing 131 from the end in the second direction corresponding to the -Y direction of the housing 131, and to allow gas to flow out from the end in the first direction corresponding to the +Y direction of the housing 131. In other words, the inlet is on the second direction side of the housing 131 and the outlet is on the first direction side. The printer 10 of this embodiment has such a configuration, and by allowing gas to flow in from the second direction where the first and second substrates are aligned, these substrates can be cooled more effectively. That is, with such a configuration, the distance between the inlet into which the cold gas flows and the first and second substrates can be shortened, and these substrates can be cooled more effectively. Note that the surface of the housing 13 on which the inlet and outlet are provided is not limited to the side, but may also be the top or bottom surface.

[0089] Furthermore, with reference to Figures 15 to 23, a feature of the printer 10 of this embodiment, distinct from the head control unit 90, will be described below. The printer 10 of this embodiment includes a media storage cassette 16 and a plurality of harnesses 151 in area S4 of Figure 15. The legs 16A of the media storage cassette 16 are configured to move along the X-axis in area S4, but if the media storage cassette 16 and the harnesses 151 are close together, there is a risk that the media storage cassette 16 and the harnesses 151 may get caught when the media storage cassette 16 is moved.

[0090] Therefore, as shown in Figures 16 and 17, the printer 10 of this embodiment is equipped with a PET (polyethylene terephthalate) sheet member 161 to prevent the media storage cassette 16 from getting caught on the cable harness 151 when the media storage cassette 16 is moved. The sheet member 161 is attached to the fixing plate 163 with double-sided tape 164 and is fastened together with the fixing plate 163 to the back plate 166 with a single screw 165. The sheet member 161 is also held in contact with a plurality of clamps 162 in the Z-axis direction. The harness 151 is located below the upper surface 162A of the clamps 162.

[0091] In detail, the sheet member 161 is fixed in a taut state on the underside of the upper surface 162A of multiple clamps 162. Therefore, the sheet member 161 and harness 151 do not protrude above the upper surface 162A of the clamps 162. Consequently, the media storage cassette 16 and the sheet member 161 do not interfere with each other.

[0092] Furthermore, since the sheet member 161 is sandwiched between the screws 165, the fixing plate 163, the back plate 166, and the clamp 162, even if the double-sided tape 164 peels off, the sheet member 161 will not move inside the printer 10. It is preferable that the sheet member 161 be made of a transparent material. This configuration makes it possible to visually check the wiring status without removing the sheet member 161.

[0093] As shown in Figures 18 to 20, the method of fastening with screws 165 is designed so that the sheet member 161 is not pinched in an unintended location, and the back sheet metal 166 is provided with a relief and hook shape 166A. As a result, the torque of the screws 165 does not loosen due to the crushing of the sheet member 161. In other words, the printer 10 of this embodiment is designed to hold down the harness 151 with a PET sheet member 161, and is devised to secure the necessary rigidity by bending both ends of the thin material while holding down the harness 151 in a space-saving manner.

[0094] Furthermore, in this embodiment, the printer 10 can be fitted with a unit having an ink cartridge 170 in area S5 of Figure 15. Within area S5, specifically in area S51 shown in Figure 21, a hole 171A is formed in the lower part 171 of the flow path of the ink cartridge 170. The formation of the hole 171A makes it possible to screw the unit having the ink cartridge 170 to area S5. Although a motor and gears 173 (not shown) are provided in area S5, the formation of the hole 171A means that ink may leak from the hole 171A to the gears 173, etc. Ink leakage can be suppressed by placing an absorbent material 172 in the lower part 171 of the flow path of the ink cartridge 170 so as to block the hole 171A, but in the Z-axis direction the hole 171A is close to the gears 173 and the absorbent material 172 is thick, so it is difficult to place the absorbent material 172 in a position to block the hole 171A near the gears 173.

[0095] Therefore, in the printer 10 of this embodiment, as shown in Figure 21, a thin PET sheet 174 is attached to the hole 171A instead of the absorbent material 172. In the printer 10 of this embodiment, the sheet 174 is attached to the sheet metal 175, but there are no particular limitations on the method of attaching the sheet 174. In other words, in the printer 10 of this embodiment, the absorbent material 172 is positioned to avoid the motor and gears 173, and a thin PET sheet 174 is attached to the hole 171A to prevent ink leakage. In addition, the absorbent material 172 is placed on the outside of the sheet 174 to draw out the ink accumulated in the hole 171A.

[0096] Furthermore, when replacing the line head 48, the ink flow tube 181 and the head communication FFC 111 may get in the way. As shown in Figure 22, the tube 181 and the head communication FFC 111 connected to the line head 48 are located on the surface 101b side of the frame 101. For example, when replacing the line head 48, the tube 181 and the head communication FFC 111 may get in the way, making it difficult to access the screw 183 shown in Figures 10 and 22. Therefore, in the printer 10 of this embodiment, as shown in Figures 22 and 23, multiple fixing clamps 182 are provided to temporarily hold the tube 181 and the head communication FFC 111. Note that in Figure 22, the line head 48 is removed, and therefore the head communication FFC 111 is shown disconnected from the connector (not shown) on the line head 48 side.

[0097] Furthermore, the printer 10 in this embodiment is equipped with a cover portion 184 that covers the surface 101b side of the frame 101. The cover portion 184 covers the surface 101b side of the frame 101 except when the line head 48 is being replaced, and is hidden by various exterior parts on the surface 101b side of the frame 101. When the line head 48 is being replaced, the cover portion 184 is removed, but this does not increase the amount of work required to use the fixing clamp 182. In other words, the printer 10 in this embodiment is configured to allow for easy replacement of the line head 48.

[0098] The present invention is not limited to the embodiments described above, and it goes without saying that various modifications are possible within the scope of the invention as described in the claims, and these modifications are also included within the scope of the present invention. [Explanation of Symbols]

[0099] 10...Printer (recording device), 12...Main unit, 13...Housing, 14...Scanner unit, 16...Media storage cassette, 16A...Legs, 17...Hopper, 17a...Rotating shaft, 18...Recording section, 20...Media placement section, 21...Media transport path, 22...Straight path, 23...Discharge section, 23a...Outlet, 24...Switchback path, 26...Reversal path, 28...Face-down discharge path, 30...Feeding path, 32...Feeding roller, 33...Separation roller pair, 33a...Drive roller, 33b...Driven roller, 34...Transport roller pair, 36...Transport roller pair, 38...Drive Roller, 40...Conveying mechanism, 41...Endless belt, 42...Driven roller, 46...First flap, 48...Line head, 52...Conveying roller pair, 54...Conveying roller pair, 56...Conveying roller pair, 58...Conveying roller pair, 60...Conveying roller pair, 62...Conveying roller pair, 70...Conveying roller pair, 72...Conveying roller pair, 74...Conveying roller pair, 80...Lid, 90...Head control unit, 91...Head drive board (first board, second board), 92...Head main board (first board, second board), 93...Surface, 93A...First surface, 93B...Second surface, 94...Board pair Board connector, 100...Main unit control, 101...Frame, 101a...Surface, 101b...Surface, 111...Head communication FFC (1st cable), 111A...Head communication FFC, 111B...Head communication FFC, 112...Head communication FFC connector (2nd cable), 112A...Head communication FFC connector, 112B...Head communication FFC connector, 113...USB communication cable, 114...USB communication cable connector, 115...Power cable (3rd cable), 116...Power cable connector, 121...Board mounting sheet metal, 122...Screw, 1 23...Screw, 130...Cooling section, 131...Housing section, 132...Intake section, 133...Exhaust section, 134...Duct, 150...Connection board, 151...Harness, 161...Sheet material, 162...Clamp, 162A...Top section, 163...Fixing sheet metal, 164...Double-sided tape, 165...Screw, 166...Back sheet metal, 166A...Relief and hook shape, 170...Ink cartridge, 171...Bottom section, 171A...Hole section, 172...Absorbing material, 173...Gear, 174...Sheet, 175...Sheet metal, 181...Tube, 182...Fixing clamp, 183...Screw, 184...Cover section, P...Media

Claims

1. It has a head that dispenses liquid and a recording unit that records onto a medium, A head control unit that controls the recording unit, A frame located between the recording unit and the head control unit, which demarcates the area where the recording unit is located and the area where the head control unit is located, A first cable electrically connects the recording unit and the head control unit, Equipped with, The head control unit is attached to the frame, The head control unit has a first substrate and a second substrate, The first substrate and the second substrate are such that at least a portion of the surface of the first substrate and the surface of the second substrate face each other in opposing directions. A recording device characterized by the following features.

2. In the recording device according to claim 1, The surface of the first substrate and the surface of the second substrate extend in a direction intersecting the frame, A recording device characterized by the following features.

3. In the recording device according to claim 1, The first board and the second board are connected by a board-to-board connector. A recording device characterized by the following features.

4. In the recording device according to claim 3, The length of an electrical component positioned between the first and second substrates and mounted on the first or second substrate in the opposing direction is smaller than the length of the substrate-to-substrate connector in the opposing direction. A recording device characterized by the following features.

5. In the recording device according to claim 1, The first substrate has a first region that does not overlap with the second substrate when viewed in the opposing direction, A connector is provided in the first region. A recording device characterized by the following features.

6. In the recording device according to claim 5, The first substrate has a first region at the end in a first direction along the first substrate, The first substrate and the second substrate have at least a portion of their edges aligned in a second direction opposite to the first direction. A recording device characterized by the following features.

7. In the recording device according to claim 1, The first substrate has a first region that does not overlap with the second substrate when viewed in the opposing direction, The second substrate has a second region that does not overlap with the first substrate when viewed in the opposing direction. Connectors are provided in the first region and the second region. A recording device characterized by the following features.

8. In a recording device according to any one of claims 1 to 7, Both the first substrate and the second substrate have a first surface on which electrical components are mounted, and a second surface that is opposite to the first surface. The second surface of the first substrate and the first surface of the second substrate face each other, The first substrate has a first region that does not overlap with the second substrate when viewed in the opposing direction, A connector is provided on the second surface of the first region to which the first cable is connected. A recording device characterized by the following features.

9. In the recording device according to claim 8, The second substrate has a second region that overlaps with the first substrate when viewed in the opposing direction, A connector is provided on the second surface of the second region to which the first cable is connected. A recording device characterized by the following features.

10. In the recording device according to claim 8, The first cable is a flexible flat cable. A recording device characterized by the following features.

11. In the recording device according to claim 8, The first cable has a connecting board that is connected to the first substrate, The first substrate and the connecting substrate are connected by a substrate-to-substrate connector. A recording device characterized by the following features.

12. In a recording device according to any one of claims 1 to 7, A main control unit that controls the main body of the device, A second cable electrically connects the head control unit and the main unit control unit, Equipped with, Both the first substrate and the second substrate have a first surface on which electrical components are mounted, and a second surface that is opposite to the first surface. The second surface of the first substrate and the first surface of the second substrate face each other, The second substrate has a third region that does not overlap with the first substrate when viewed in the opposing direction. A connector is provided on the first surface of the third region to which the second cable is connected. A recording device characterized by the following features.

13. In the recording device according to claim 12, The second cable is a USB communication cable. A recording device characterized by the following features.

14. In a recording device according to any one of claims 1 to 7, The head control unit is equipped with a third cable that supplies power to it. Both the first substrate and the second substrate have a first surface on which electrical components are mounted, and a second surface that is opposite to the first surface. The second surface of the first substrate and the first surface of the second substrate face each other, The second substrate has a second region that overlaps with the first substrate when viewed in the opposing direction, A connector is provided on the second surface of the second region to which the third cable is connected. A recording device characterized by the following features.

15. In a recording device according to any one of claims 1 to 7, Both the first substrate and the second substrate have a first surface on which electrical components are mounted, and a second surface that is opposite to the first surface. The second surface of the first substrate and the second surface of the second substrate face each other, A recording device characterized by the following features.

16. In a recording device according to any one of claims 1 to 7, The frame is attached and includes a substrate mounting section to which the first substrate and the second substrate are attached, The aforementioned substrate mounting section allows for the attachment of a third substrate in place of the first substrate. A recording device characterized by the following features.

17. In a recording device according to any one of claims 1 to 7, Attached to the frame, and comprising a cooling unit for cooling the head control unit, The head control unit has a housing section for housing the first substrate and the second substrate, The cooling unit cools the inside of the housing unit. A recording device characterized by the following features.

18. In the recording device according to claim 17, The cooling unit is Intake section and, Exhaust section and A duct for circulating gas between the intake and exhaust sections, It has, The intake section is located below the housing section. The exhaust section is located above the housing section. A recording device characterized by the following features.

19. In the recording device according to claim 6, Attached to the frame, and comprising a cooling unit for cooling the head control unit, The head control unit has a housing section for housing the first substrate and the second substrate, The cooling unit is Intake section and, Exhaust section and A duct that allows gas to flow from the intake section through the containment section to the exhaust section, It has, The aforementioned duct is, Gas is introduced into the housing from the end of the housing in the second direction. The gas is discharged from the end of the housing in the first direction. A recording device characterized by the following features.

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