Recording device

Abstract

In a configuration where ink ejected towards the platen and landed during borderless printing is captured by ink grooves, there is room for improvement in terms of reducing ink mist generation. [Solution] The liquid receiving section of the recording device has a first region and a second region located on both sides of the width direction relative to the first region. Multiple ribs provided in the first region are designated as the first upstream rib, the first midstream rib, and the first downstream rib from upstream to downstream of the transport path, and multiple ribs provided in the second region are designated as the second upstream rib, the second midstream rib, and the second downstream rib from upstream to downstream of the transport path, with the height of the first upstream rib being greater than or equal to the height of the first midstream rib and greater than the height of the first downstream rib, and the height of the second upstream rib being greater than or equal to the height of the second midstream rib and greater than the height of the second downstream rib.

Description

Technical Field

[0001] The present invention relates to a recording apparatus that records on a medium.

Background Art

[0002] Patent Document 1 discloses an inkjet printing apparatus capable of performing borderless printing. On a platen that supports a sheet, a plurality of ink grooves are formed by a large number of ribs provided along the sheet conveyance direction. Ink ejected and landed toward the platen during borderless printing is captured by the ink grooves, guided to an ink absorber, and absorbed by the ink absorber.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the configuration described in Patent Document 1, there is room for improvement from the viewpoint of reducing the generation of ink mist.

Means for Solving the Problems

[0005] To solve the above problems, the present invention provides a recording device comprising: a liquid discharge head that performs recording by discharging liquid onto a medium in a transport path for transporting the medium; a support part that supports the medium at a position opposite to the liquid discharge head; a liquid receiving part provided on the support part that receives the liquid discharged from the liquid discharge head; and a transport part located upstream of the support part in the transport path for transporting the medium, wherein the liquid receiving part has a plurality of ribs extending along the width direction, which is a direction intersecting the medium transport direction, spaced apart along the medium transport direction, and the liquid receiving part has a liquid receiving area, a first area and a second area located on both sides of the width direction relative to the first area, the second area is an area that receives liquid discharged at a position away from the edge of the medium in the width direction, and the plurality of ribs provided in the first area The first rib is defined as one rib, a plurality of ribs provided in the second region are defined as second ribs, the rib located furthest upstream of the plurality of first ribs in the transport path is defined as the first upstream rib, the rib located downstream of the transport path relative to the first upstream rib is defined as the first midstream rib, the rib located downstream of the transport path relative to the first midstream rib is defined as the first downstream rib, the rib located furthest upstream of the plurality of second ribs in the transport path is defined as the second upstream rib, the rib located downstream of the transport path relative to the second upstream rib is defined as the second midstream rib, and the rib located downstream of the transport path relative to the second midstream rib is defined as the second downstream rib, and the height of the first upstream rib is greater than or equal to the height of the first midstream rib and greater than the height of the first downstream rib, and the height of the second upstream rib is greater than or equal to the height of the second midstream rib and greater than the height of the second downstream rib. [Brief explanation of the drawing]

[0006] [Figure 1] External perspective view of the printer. [Figure 2] External perspective view of the printer with the document cover open. [Figure 3] External perspective view of a printer with the scanner unit open. [Figure 4]A perspective view of a printer with the scanner section open, omitting the illustration of the control panel. [Figure 5] A perspective view of the recording unit with the casing removed. [Figure 6] A diagram showing the media transport path in the recording unit. [Figure 7] A perspective view of the liquid receiving section provided on the support member. [Figure 8A] A plan view of the liquid receiving section provided on the support member. [Figure 8B] A plan view of the liquid receiving section provided on the support member, with the ribs omitted from the illustration. [Figure 9] Cross-sectional view AA in Figure 7. [Figure 10] A plan view of the head surface of the recording head. [Modes for carrying out the invention]

[0007] The present invention will be described in general terms below. A recording device according to the first embodiment includes a liquid discharge head that performs recording by discharging liquid onto a medium in a transport path for transporting the medium, a support part that supports the medium at a position opposite to the liquid discharge head, a liquid receiving part provided on the support part that receives the liquid discharged from the liquid discharge head, and a transport part located upstream of the support part in the transport path for transporting the medium, wherein the liquid receiving part has a plurality of ribs extending along the width direction which is a direction intersecting the medium transport direction, spaced apart along the medium transport direction, and the liquid receiving part has a liquid receiving area, a first area and second areas located on both sides of the width direction relative to the first area, the second area is an area that receives liquid discharged at a position away from the end of the medium in the width direction, and the plurality of ribs provided in the first area are the first ribs and The present invention relates to a system in which a plurality of ribs provided in the second region are designated as second ribs, the rib located furthest upstream of the plurality of first ribs in the transport path is designated as the first upstream rib, the rib located downstream of the transport path relative to the first upstream rib is designated as the first midstream rib, the rib located downstream of the transport path relative to the first midstream rib is designated as the first downstream rib, the rib located furthest upstream of the plurality of second ribs in the transport path is designated as the second upstream rib, the rib located downstream of the transport path relative to the second upstream rib is designated as the second midstream rib, and the rib located downstream of the transport path relative to the second midstream rib is designated as the second downstream rib, wherein the height of the first upstream rib is greater than or equal to the height of the first midstream rib and greater than the height of the first downstream rib, and the height of the second upstream rib is greater than or equal to the height of the second midstream rib and greater than the height of the second downstream rib.

[0008] As the leading edge of the medium moves further downstream from the conveying section along the conveying path, the influence of the conveying section on its restraint decreases, and it becomes more likely to hang downwards. As a result, there is a risk that the leading edge of the medium may come into contact with the ribs and become contaminated, or that the leading edge of the medium may get caught on the ribs and cause a jam. Furthermore, as the transport progresses, the rear end of the medium absorbs more liquid and tends to sag downwards. As a result, there is a risk that the front end of the medium may come into contact with the ribs and become contaminated. Therefore, it is preferable that the height of the rib located downstream of the transport path among the multiple ribs be as low as possible in order to avoid contact with the leading or trailing end of the medium. However, if the height of the ribs is uniformly lowered, the gap between the liquid discharge head and the ribs widens, making it easier for mist to be generated.

[0009] According to this embodiment, the height of the first upstream rib is greater than or equal to the height of the first midstream rib and greater than the height of the first downstream rib, and the height of the second upstream rib is greater than or equal to the height of the second midstream rib and greater than the height of the second downstream rib. This suppresses contact between the leading or trailing end of the medium and the ribs downstream of the first upstream rib or the ribs downstream of the second upstream rib, while suppressing the generation of mist caused by the widening of the gap between the first upstream rib and the liquid discharge head and the gap between the second upstream rib and the liquid discharge head.

[0010] The second embodiment is an embodiment dependent on the first embodiment, characterized in that the height of the second upstream rib is greater than the height of the second midstream rib, and the height of the second midstream rib is greater than the height of the second downstream rib.

[0011] According to this embodiment, the height of the second upstream rib is higher than the height of the second midstream rib, and the height of the second midstream rib is higher than the height of the second downstream rib. This suppresses the generation of mist caused by an increase in the distance between the second upstream rib and the liquid discharge head, while preventing the leading or trailing end of the medium from contacting the second midstream rib or the second downstream rib.

[0012] A third embodiment is an embodiment dependent on the first embodiment, characterized in that the height of the first upstream rib and the height of the first midstream rib are the same. According to this aspect, since the height of the first upstream rib is the same as the height of the first middle stream rib, while suppressing the contact of the tip or the rear end of the medium with the first downstream rib, the generation of mist caused by the expansion of the distance between the first upstream rib and the liquid ejection head and the distance between the first middle stream rib and the liquid ejection head can be suppressed. Note that this aspect is not limited to the above first aspect, and may also be subordinate to the above second aspect.

[0013] The fourth aspect is an aspect subordinate to the first aspect, characterized in that the height of the second upstream rib is not more than the height of the first downstream rib. Since the medium curls upward by absorbing the liquid, the end portions in the width direction are likely to droop. According to this aspect, since the height of the second upstream ribs provided in the second regions located on both sides in the width direction with respect to the first region is not more than the height of the first downstream rib, it is possible to suppress the contact of both end portions in the width direction of the medium with the ribs provided in the second region. Note that this aspect is not limited to the above first aspect, and may also be subordinate to the above second or third aspect.

[0014] The fifth aspect is an aspect dependent on the first aspect, wherein the support portion includes, as portions for supporting the medium, a plurality of first support portions arranged at intervals along the width direction, a plurality of second support portions located downstream of the first support portions in the conveyance path and arranged at intervals along the width direction, a plurality of third support portions located downstream of the second support portions in the conveyance path and arranged at intervals along the width direction, and a plurality of fourth support portions located downstream of the third support portions in the conveyance path and arranged at intervals along the width direction. The second support portion and the third support portion are located within the first region. Among the plurality of first upstream ribs, at least a part is located between the first support portion and the second support portion in the conveyance path. Among the plurality of first middle ribs, at least a part is located between the second support portion and the third support portion in the conveyance path. Among the plurality of first downstream ribs, at least a part is located between the third support portion and the fourth support portion in the conveyance path. At least one of the first upstream rib and the first middle rib is arranged between two adjacent second support portions in the width direction. At least one of the first middle rib and the first downstream rib is arranged between two adjacent third support portions in the width direction.

[0015] According to this aspect, the second support portion and the third support portion can support the medium within the first region, and can suppress the sagging of the medium. And since at least one of the first upstream rib and the first middle rib is arranged between two adjacent second support portions in the width direction, liquid can be received between two adjacent second support portions. Also, since at least one of the first middle rib and the first downstream rib is arranged between two adjacent third support portions in the width direction, liquid can be received between two adjacent third support portions. Note that this aspect is not limited to the first aspect, and may be dependent on any of the second to fourth aspects.

[0016] The sixth aspect is an aspect dependent on the first aspect, characterized in that the length of the first rib in the width direction is longer than the length of the second rib. According to this embodiment, the effects and advantages of the fourth embodiment described above can be obtained in a configuration where the length of the first rib in the width direction is longer than the length of the second rib. Furthermore, this embodiment is not limited to the first embodiment described above, but may be dependent on any of the second to fifth embodiments described above.

[0017] The seventh aspect is an aspect dependent on the first aspect, characterized in that the height positions of the base end of the first rib and the base end of the second rib are aligned. According to this embodiment, since the height positions of the base end of the first rib and the base end of the second rib are aligned, the height positions of the bottom of the groove formed between two adjacent first ribs and the bottom of the groove formed between two adjacent second ribs are aligned. As a result, the height dimension of the support portion can be reduced compared to a configuration in which the height positions of the base end of the first rib and the base end of the second rib are not aligned. Furthermore, this embodiment is not limited to the first embodiment described above, but may be dependent on any of the second to sixth embodiments described above.

[0018] The eighth aspect is an aspect dependent on any of the first to seventh aspects, wherein the liquid discharge head has a plurality of nozzles for discharging liquid, and the plurality of nozzles include a first nozzle for discharging a liquid of a first color, a second nozzle for discharging a liquid of a second color which is darker than the first color and is located upstream of the transport path relative to the first nozzle, and a third nozzle for discharging a liquid of a third color which is darker than the second color and is located upstream of the transport path relative to the second nozzle, wherein at least a portion of the plurality of third nozzles is capable of facing the first upstream rib and the second upstream rib, at least a portion of the plurality of second nozzles is capable of facing the first midstream rib and the second midstream rib, and at least a portion of the plurality of first nozzles is capable of facing the first downstream rib and the second downstream rib.

[0019] The darker the color of the liquid, the more noticeable any mist that is generated and adheres to it becomes. In this embodiment, the nozzles that discharge the darker colored liquids face the ribs that are taller. Specifically, at least some of the third nozzles that discharge the liquid of the third color, which is the darkest of the first, second, and third colors, face the first upstream rib, which is the tallest of the first ribs, and also face the second upstream rib, which is the tallest of the second ribs. This makes it possible to suppress the generation of mist when discharging the liquid of the third color, which is the darkest color, and makes the areas to which the mist adheres less noticeable. The same applies to the liquid of the second color; compared to the first color, the generation of mist can be suppressed, and the areas to which the mist adheres less noticeable. Furthermore, the statement that the second color is darker than the first color means that the lightness of the second color is lower than the lightness of the first color, and at least one of the saturation of the second color is lower than the saturation of the first color. The same applies to the relationship between the second color and the third color.

[0020] The ninth aspect is an aspect dependent on the eighth aspect, characterized in that the third color is cyan, the second color is magenta, and the first color is yellow. According to this embodiment, in a configuration in which the third color is cyan, the second color is magenta, and the first color is yellow, the effects and advantages of the eighth embodiment described above can be obtained.

[0021] A recording device according to the tenth embodiment comprises a liquid discharge head that performs recording by discharging liquid onto a medium in a transport path for transporting the medium, a support portion that supports the medium at a position opposite to the liquid discharge head, a liquid receiving portion provided on the support portion that receives the liquid discharged from the liquid discharge head, and a transport portion located upstream of the support portion in the transport path for transporting the medium, wherein the liquid receiving portion has a plurality of ribs extending along the width direction which is a direction intersecting the medium transport direction, spaced apart along the medium transport direction, and the liquid receiving portion comprises an upstream liquid receiving region as a region for receiving liquid and a downstream liquid receiving region located downstream of the transport path relative to the upstream liquid receiving region, wherein the ribs provided in the upstream liquid receiving region are called upstream ribs and the ribs provided in the downstream liquid receiving region are called downstream ribs, and the height of the upstream ribs is higher than the height of the downstream ribs.

[0022] As the leading edge of the medium moves further downstream from the conveying section along the conveying path, the influence of the conveying section on its restraint decreases, and it becomes more likely to hang downwards. As a result, there is a risk that the leading edge of the medium may come into contact with the ribs and become contaminated, or that the leading edge of the medium may get caught on the ribs and cause a jam. Furthermore, as the transport progresses, the rear end of the medium absorbs more liquid and tends to sag downwards. As a result, there is a risk that the front end of the medium may come into contact with the ribs and become contaminated. Therefore, it is preferable that the height of the rib located downstream of the transport path among the multiple ribs be as low as possible in order to avoid contact with the leading or trailing end of the medium. However, if the height of the ribs is uniformly lowered, the gap between the liquid discharge head and the ribs widens, making it easier for mist to be generated.

[0023] In view of the above, in this embodiment, the height of the upstream rib is made higher than the height of the downstream rib. This suppresses the generation of mist caused by an increase in the distance between the upstream rib and the liquid discharge head, while preventing the leading or trailing end of the medium from contacting the downstream rib. In this specification, the height of the rib may be rephrased as the amount of protrusion of the rib toward the liquid discharge head. The higher the height of the rib, the smaller the distance between the rib and the liquid discharge head, and conversely, the lower the height of the rib, the larger the distance between the rib and the liquid discharge head.

[0024] The eleventh aspect is an aspect dependent on the tenth aspect, characterized in that the liquid receiving portion receives the liquid inward from both ends of the medium in the width direction. According to this embodiment, the effects and advantages of the first embodiment described above can be obtained in a configuration in which the liquid receiving portion receives the liquid inside the ends of the medium in the width direction.

[0025] The twelfth aspect is an aspect dependent on the tenth aspect, characterized in that the liquid receiving portion receives the liquid outside of both ends of the medium in the width direction. According to this embodiment, the effects and advantages of the tenth embodiment described above can be obtained in a configuration in which the liquid receiving portion receives the liquid outside of both ends of the medium in the width direction. Furthermore, this embodiment is not limited to the tenth embodiment described above, but may also be dependent on the eleventh embodiment described above.

[0026] The present invention will be described in detail below. In the following description, an inkjet printer 1, which records data by ejecting ink onto a medium such as recording paper, will be described as an example of a recording device. Hereafter, the inkjet printer 1 will be abbreviated as printer 1. In this embodiment, the term "liquid" refers to ink, but liquids are not limited to ink. Examples of liquids include, in addition to ink, pre-treatment liquids used to pre-treat the medium, and post-treatment liquids used to post-treat the medium.

[0027] The XYZ coordinate system shown in each figure is a Cartesian coordinate system, where the direction indicated by the arrow on the X, Y, and Z axes is considered the + direction, and the opposite direction is considered the - direction. The Y-axis direction is the direction along which the medium is transported during recording, and is also the depth direction of the device. Hereafter, when simply referred to as the transport direction, it means the +Y direction. In this embodiment, of the sides that make up the perimeter of the printer 1, the side in the +Y direction is the front, and the side in the -Y direction is the back. The X-axis direction corresponds to the width of the device; from the perspective of the printer 1 operator, the +X direction is to the left and the -X direction is to the right. The X-axis direction is also the width direction, intersecting the transport direction. In the following, the X-axis direction may simply be referred to as the width direction. The Z-axis direction is the vertical direction, i.e., the device height direction, with the +Z direction being upward and the -Z direction being downward.

[0028] As shown in Figure 1, the printer 1 is configured as a multifunction device comprising a recording unit 2 and a scanner unit 3 located above the recording unit 2. The scanner unit 3, which is an example of an image reading device that reads images from a document, comprises a reading unit 4 and a document cover 5 provided above the reading unit 4. The document cover 5 is rotatably mounted relative to the reading unit 4, and when opened, the document tray 6 that constitutes the reading unit 4 is exposed as shown in Figure 2. The document tray 6 is made of, for example, a glass plate. A reading unit (not shown) is provided on the underside of the document tray 6.

[0029] The scanner unit 3 is rotatably connected to the recording unit 2 via a pivot shaft 60g (see Figure 6), and by rotating, it can assume a closed state as shown in Figure 1 and an open state as shown in Figure 3. The pivot shaft 60g is supported by the bearing portion 39a (see Figures 5 and 6) of the base frame 39 that constitutes the base of the recording unit 2. In Figure 3, reference numeral 13 denotes a support arm, which holds the scanner unit 3 in the open position. When the scanner unit 3 is opened, the inside of the recording unit 2 is exposed.

[0030] In Figure 1, an operation panel 10 is provided on the front side of the scanner unit 3. The operation panel 10 is tiltable and can be positioned with the panel surface aligned vertically, as shown in Figure 1, or with the panel surface facing upwards (not shown). An outlet 11 is formed on the front side of the recording unit 2. A media receiving tray 12 is provided at the outlet 11. The media receiving tray 12 is configured to be switchable between a stored state as shown in Figure 1 and a pulled-out state as shown in Figure 5 relative to the recording unit 2.

[0031] Furthermore, the front side of the recording unit 2 is provided with an ink storage section 7 for storing ink, which is an example of a liquid. The ink storage section 7 can store multiple colors of ink, such as yellow, magenta, cyan, and black ink. The front side of the ink storage section 7 is provided with an ink level viewing window 7a for visually checking the remaining amount of ink. A cover 8 is provided on the upper part of the ink storage section 7. The cover 8 is integrally provided with the scanner section 3, and when the scanner section 3 is opened, the upper part of the ink storage section 7 is exposed as shown in Figure 3. In Figure 3, reference numeral 9 denotes the cap lever. The cap lever 9 is openable and closable, and by opening the cap lever 9, an ink filler port (not shown) can be exposed. Ink can then be refilled through this ink filler port.

[0032] As shown in Figures 5 and 6, a media support section 14 is provided on the rear side of the recording unit 2 to support the media in an inclined position before feeding. The media support section 14 comprises a support section 15 and a swinging support section 16. The swinging support section 16 is capable of swinging around a swing axis 16a (see Figure 6) and swings by receiving power from a motor (not shown), thereby bringing the supported media into contact with the feed roller 23.

[0033] As shown in Figure 5, the rocking support section 16 is provided with edge guides 17A and 17B that guide the edges of the medium in the width direction. The edge guides 17A and 17B are arranged to be close to or far apart from each other along the width direction of the medium by a rack and pinion mechanism (not shown).

[0034] The support section 15 can be in the deployed state shown in Figures 5 and 6, and the retracted state shown in Figure 1. In the deployed state shown in Figures 5 and 6, the support section 15 is in an inclined position. In the retracted state shown in Figure 1, the support section 15 is in a vertical position and is stored on the rear side of the base frame 39. As shown in Figure 6, a guide section 39b extending vertically is formed on the rear side of the base frame 39. A pivot shaft 15b is formed in the support section 15, and the pivot shaft 15b is provided to be movable vertically within the guide section 39b.

[0035] When the support section 15 is in its retracted state, the pivot shaft 15b is located at the lower end of the guide section 39b. When the user pulls up the support section 15 from this state and tilts it, the pivot shaft 15b enters into the holding section 39c provided on the upper part of the guide section 39b. The rear side of the support section 15 then contacts the contact section 39d of the base frame 39, and the tilted position is maintained.

[0036] As shown in Figure 5, a curved support portion 15a is formed on the upper part of the support portion 15. The medium supported by the support portion 15 is curved downward along the width direction by the curved support portion 15a, thereby preventing the upper end of the medium from sagging backward.

[0037] The transport path 20 for the media in the recording unit 2 will be described below with reference to Figure 6. In the following, the direction in which the media is sent will be referred to as "downstream," and the opposite direction as "upstream." In Figure 7, the transport path 20 for the media is shown as a dashed line. In the printer 1, the media is transported through the transport path 20.

[0038] The media support section 14 described above is located at the very upstream end of the transport path 20. The media supported by the media support section 14 is nipped and separated by a feeding roller 23 driven by a motor (not shown) and a separation roller 24 with rotational resistance, and then sent toward a pair of transport rollers 26 which constitute the "transport section". Reference numeral 23a denotes the rotation axis of the feed roller 23. Reference numeral 25 denotes a support member that supports one end of the rotation axis 23a. The support member 25 is fixed to the main frame 40.

[0039] The transport roller pair 26 comprises a transport drive roller 27 driven by a transport motor (not shown) and a transport driven roller 28 that nip the medium between itself and the transport drive roller 27. The transport driven roller 28 is rotatably supported by a roller support member 29. In this embodiment, the transport drive roller 27 is a shaft extending in the width direction. In this embodiment, multiple transport driven rollers 28 are provided relative to the transport drive roller 27 at appropriate intervals along the width direction.

[0040] The roller support member 29 is pivotably mounted to the main frame 40 via a pivot shaft (not shown), and by pivoting, the transport driven roller 28 moves forward and backward relative to the transport drive roller 27. The roller support member 29 is pressed by a pressing member (not shown), such as a torsion spring or tension spring, in the direction that the transport driven roller 28 advances relative to the transport drive roller 27.

[0041] The recording unit 35 comprises a carriage 36 and a recording head 37, which is an example of a liquid discharge head. The carriage 36 is supported by the main frame 40 and guided in the width direction. The carriage 36 reciprocates in the width direction with power from the carriage motor 49 (see Figure 5). A recording head 37 is located at the bottom of the carriage 36. The recording head 37 is equipped with multiple nozzles capable of ejecting ink in the -Z direction (see Figure 10).

[0042] Now, with reference to Figure 10, the nozzle arrangement in the recording head 37 will be explained. Multiple nozzles for ejecting ink are provided on the lower surface of the recording head 37, i.e., the head surface 37a. These nozzles, Na1, ..., Na180, are arranged at intervals along the Y-axis to form nozzle row Na. Similarly, these nozzles, Nb1, ..., Nb180, are arranged at intervals along the Y-axis to form nozzle row Nb. Nozzle row Na and nozzle row Nb are arranged at a predetermined distance in the width direction. Furthermore, nozzle row Nb is positioned slightly upstream of nozzle row Na. It should be noted that this nozzle arrangement is just one example, and the nozzle arrangement is not limited to this.

[0043] In this embodiment, nozzle row Na ejects black ink as an example. In this embodiment, nozzle row Nb ejects color ink as an example. Of nozzle row Nb, nozzles Nb1 to Nb60 eject yellow ink as an example. The area indicated by symbol Y1 is the arrangement area of ​​nozzles Nb1 to Nb60. Of nozzle row Nb, nozzles Nb61 to Nb120 eject magenta ink as an example. The area indicated by symbol Y2 is the arrangement area of ​​nozzles Nb61 to Nb120. Of nozzle row Nb, nozzles Nb121 to Nb180 eject cyan ink as an example. The area indicated by symbol Y3 is the arrangement area of ​​nozzles Nb121 to Nb180. Yellow is an example of the first color, and nozzles Nb1 to Nb60 are examples of the first nozzle. Magenta is an example of the second color, which is darker than the first color, and nozzles Nb61 to Nb120 are examples of the second nozzle. Cyan is an example of the third color, which is darker than the second color, and nozzles Nb121 to Nb180 are examples of the third nozzle.

[0044] The ink storage unit 7 (see Figures 1 to 4), which contains ink of each of the above colors, and the recording head 37 are connected by an ink tube 47 (see Figure 5), and ink is supplied from the ink storage unit 7 through the ink tube 47. In this embodiment, the printer 1 has an ink storage unit 7 that is separate from the carriage 36, but the ink storage unit 7 may also be provided on the carriage 36. Also, in this embodiment, the recording unit 35 is configured such that the recording head 37 moves in the width direction while ejecting ink, i.e., it is a serial type, but it is not limited to this, and may also be configured such that the ink ejection nozzles are arranged to cover the entire width direction and recording is possible without movement in the width direction, i.e., it is a line head.

[0045] Next, returning to Figure 6, a support member 38, which is an example of a support part for supporting the medium, is provided at a position that can face the recording head 37. The support member 38 defines the distance between the medium and the recording head 37. The recording head 37 then ejects ink onto the medium supported by the support member 38 and performs recording on the recording surface of the medium. The recorded medium is sent to a pair of discharge rollers 32 located downstream of the recording head 37 in the transport path 20.

[0046] The discharge roller pair 32 comprises a discharge drive roller 33 driven by a transport motor (not shown) and a discharge driven roller 34 that nip the medium between itself and the discharge drive roller 33. In this embodiment, multiple discharge roller pairs 32 are provided at appropriate intervals along the width direction. In this embodiment, the discharge driven roller 34 is a toothed roller having teeth on its outer circumference. The discharge driven roller 34 is movable back and forth relative to the discharge drive roller 33, and by using a rod spring as the axis of rotation, it nips the medium between itself and the discharge drive roller 33. This pair of discharge rollers 32 ejects the recorded media towards the media receiving tray 12. The above describes the configuration of the transport path 20.

[0047] Furthermore, a maintenance section 90 is provided at the -X end of the carriage 36 in the reciprocating motion region, as shown in Figure 5. The maintenance section 90 is equipped with a cap (not shown) capable of sealing the ink ejection surface of the recording head 37. A suction pump 45 is provided adjacent to the maintenance section 90, as shown in Figure 5, and the suction pump 45 and the cap (not shown) are connected by a tube 92. As a result, when the suction pump 45 is operated, negative pressure is supplied into the cap (not shown), and waste ink is sucked out from the cap (not shown).

[0048] The waste ink sucked up by the suction pump 45 is sent to the waste liquid storage section 46 via the tube 93 and collected. The suction pump 45 is driven by a transport motor (not shown). When the transport motor rotates in the forward direction when transporting the medium downstream, the suction pump 45 operates only when the transport motor rotates in the reverse direction. The waste liquid storage section 46 is located at the top of the front side of the device. The waste liquid storage section 46 is detachably installed. The waste liquid container 46 is held in place by a retaining member 44 that can be opened and closed. The retaining member 44 can be opened from the closed state shown in Figures 3 and 5 to the state shown in Figure 4 by operating the attachment / detachment operation part 44a. When the retaining member 44 is opened, the waste liquid container 46 can be attached and detached.

[0049] Furthermore, the attachment / detachment operation section 44a and the cap lever 9 shown in Figure 3 are parts operated by the user, but because they are close to the reciprocating motion area of ​​the recording head 37, ink mist is likely to adhere to them, potentially soiling the user's fingers. For this reason, walls 41a, 41b, and 41c are provided at the bottom of the scanner section 3, as shown in Figure 4. Wall 41a is positioned to separate the attachment / detachment operation section 44a from the reciprocating motion area of ​​the recording head 37 when the scanner section 3 is closed, thereby suppressing the adhesion of ink mist to the attachment / detachment operation section 44a. Similarly, walls 41b and 41c are positioned to separate the cap lever 9 from the reciprocating motion area of ​​the recording head 37 when the scanner section 3 is closed, thereby suppressing the adhesion of ink mist to the cap lever 9.

[0050] Next, in Figures 5 and 6, reference numeral 40 denotes the main frame that constitutes the base of the recording unit 2. The main frame 40 is located between the media support section 14 and the recording section 35. On the rear side of the main frame 40, the main circuit board 50 is mounted horizontally. The main board 50 constitutes the control unit that manages the overall control of the printer 1, and various electronic components and connectors are mounted on it.

[0051] A carriage motor 49 is provided on the rear side of the main frame 40, as shown in Figure 5. A carriage belt 48 for pulling the carriage 36 is provided on the front side of the main frame 40. A drive pulley 52 is provided at the -X end of the main frame 40. A driven pulley 53 is provided at the +X end of the main frame 40. The carriage belt 48 is routed around the drive pulley 52 and the driven pulley 53. The drive pulley 52 is provided on the rotation shaft of the carriage motor 49. The driven pulley 53 is supported by a holder 54. The holder 54 is mounted on the main frame 40 so as to be displaceable in the X-axis direction and is pressed in the +X direction by a compression coil spring 55, which is an example of a pressing member. This applies tension to the carriage belt 48 along the X-axis direction.

[0052] Next, the liquid receiving portion 60 provided on the support member 38 will be described with reference to Figure 7 and subsequent figures. The liquid receiving section 60 is a part for performing borderless printing on all four sides of the medium, and is used as a waste area when discarding ink in areas away from the leading edge, trailing edge, and both sides of the medium. The liquid receiving section 60 has multiple ribs extending along the width direction, spaced apart along the conveying direction. These ribs are indicated by reference numerals 61A, 61B, 61C, 62A, 62B, and 62C in Figures 7 and later. When these ribs are not distinguished, they are simply referred to as ribs. The ribs indicated by reference numerals 61A, 61B, and 61C may be collectively referred to as the first rib 61. The ribs indicated by reference numerals 62A, 62B, and 62C may be collectively referred to as the second rib 62. Multiple ribs are provided along the transport direction, with a groove between two adjacent ribs in the transport direction. Ink ejected from the recording head 37 is captured by the ribs, falls to the bottom of the groove between two adjacent ribs, and flows in the width direction.

[0053] Further details are provided below. Figure 8B omits the illustration of the ribs shown in Figure 8A to avoid complexity. The liquid receiving section 60 has a first region A1 and a second region A2 located on both sides of the width direction relative to the first region A1, as areas for receiving liquid, i.e., ink. A third region A3 is provided further outside of the second region A2. The second region A2 is the region that receives ink ejected at a position away from the edge, i.e., the side edge, of the medium in the width direction. The first region A1 is the region that receives ink ejected at a position away from the leading or trailing edge of the medium.

[0054] The support member 38 also has a first support portion 63, a second support portion 64, a third support portion 65, and a fourth support portion 66 as parts that support the medium. Multiple support portions are arranged at intervals along the width direction. Each support portion is also formed to protrude from the support member 38 in the +Z direction, i.e., toward the recording head 37. Of the support portions, the second support portion 64 and the third support portion 65 are provided within the first region A1. The first support section 63 is positioned upstream of the second region A2. The second support section 64 is positioned downstream of the first support section 63. The third support section 65 is positioned downstream of the second support section 64. The fourth support section 66 is positioned downstream of the second region A2.

[0055] The upstream end of the first region A1 is located downstream in the transport direction from the upstream end of the second region A2. The symbol T1 indicates the amount of displacement in the transport direction between the upstream end of the first region A1 and the upstream end of the second region A2. This configuration can be rephrased as the first support portion 63 located within the range of the first region A1 in the width direction being extended downstream from the other first support portions 63.

[0056] Here, the medium P1 shown in Figure 8B is an L-size medium with a short side of 89 mm and a long side of 127 mm, and the example shows it being transported with the short side aligned along the width direction. In Figure 8B, the leading edge of the medium P1 is located between the first support part 63 and the second support part 64. In this state, cyan ink is ejected from the nozzles Nb121 to Nb180 shown in Figure 10, resulting in borderless printing with cyan ink on the leading edge and both ends of the medium. In this case, the first support part 63, which is located within the range of the first region A1 in the width direction, extends further downstream than the other first support parts 63, so that the medium is supported further downstream, and consequently, the sagging of the leading edge of the medium can be suppressed.

[0057] In Figure 8B, the position indicated by the symbol S1 is the position of nozzle Nb180 in the transport direction among the multiple nozzles described with reference to Figure 10. Furthermore, position E1 is the position of the media-side edge when transporting a KGL-size medium with a short side of 102 mm and a long side of 152 mm, with the short side aligned along the width direction. In this embodiment, when transporting an L-size medium or a KGL-size medium, the media-side edge passes through the second region A2. Furthermore, a liquid absorbent material (not shown) is provided in the third region A3. The ink discarded in the first region A1 and the second region A2 falls to the bottom of the groove between two adjacent ribs, flows in the width direction, and is absorbed by the liquid absorbent material.

[0058] Furthermore, when the leading edge of the media is positioned between the second support portion 64 and the third support portion 65, magenta ink is ejected from nozzles Nb61 to Nb120 shown in Figure 10, resulting in borderless printing with magenta ink on the leading edge and both sides of the media. Furthermore, when the leading edge of the medium is positioned between the third support portion 65 and the fourth support portion 66, yellow ink is ejected from nozzles Nb1 to Nb60 shown in Figure 10, resulting in borderless printing with yellow ink on the leading edge and both sides of the medium. Similarly, when performing borderless printing on the rear edge of the media, when the rear edge of the media is located between the first support portion 63 and the second support portion 64, borderless printing with cyan ink is performed on the rear edge and both sides of the media. When the rear edge of the media is located between the second support portion 64 and the third support portion 65, borderless printing with magenta ink is performed on the rear edge and both sides of the media. When the rear edge of the media is located between the third support portion 65 and the fourth support portion 66, borderless printing with yellow ink is performed on the rear edge and both sides of the media.

[0059] A first rib 61 is provided in the first region A1, and a second rib 62 is provided in the second region A2. These ribs will be described in more detail below. In Figures 7, 8A, and 9, the first rib 61 is composed of a first upstream rib 61A, a first midstream rib 61B, and a first downstream rib 61C. The first upstream rib 61A is the rib located furthest upstream of the first rib 61 in the transport path 20. The first midstream rib 61B is the rib located downstream of the first upstream rib 61A in the transport path 20. The first downstream rib 61C is the rib located downstream of the first midstream rib 61B in the transport path 20. The second rib 62 is composed of a second upstream rib 62A, a second midstream rib 62B, and a second downstream rib 62C. The second upstream rib 62A is the rib located furthest upstream of the second rib 62 in the transport path 20. The second midstream rib 62B is located downstream of the second upstream rib 62A in the transport path 20. The second downstream rib 62C is located downstream of the second midstream rib 62B in the transport path 20.

[0060] Here, as the leading edge of the medium moves further downstream from the transport roller pair 26 along the transport path 20, the effect of restraint by the transport roller pair 26 decreases, and it becomes more likely to hang downwards. As a result, there is a risk that the leading edge of the medium may come into contact with the rib and become contaminated, or that the leading edge of the medium may get caught on the rib and cause a jam. Furthermore, as the media is transported, the trailing end absorbs more ink and tends to sag downwards. This can cause the leading edge of the media to come into contact with the ribs, potentially leading to contamination. Therefore, it is preferable that the height of the rib located downstream of the conveying path 20 is kept as low as possible in order to avoid contact with the leading or trailing end of the medium. However, if the height of the ribs is uniformly lowered, the gap between the recording head 37 and the ribs widens, making it easier for mist to be generated.

[0061] In view of the above, the first rib 61 and the second rib 62 in this embodiment are configured as follows. First, with respect to the first rib 61, the height of the first upstream rib 61A is greater than or equal to the height of the first midstream rib 61B, and is also greater than the height of the first downstream rib 61C. Furthermore, with respect to the second rib 62, the height of the second upstream rib 62A is greater than or equal to the height of the second midstream rib 62B, and is also greater than the height of the second downstream rib 62C. This prevents the leading or trailing end of the media from contacting the ribs downstream of the first upstream rib 61A or the ribs downstream of the second upstream rib 62A, while suppressing the generation of mist caused by the widening of the gap between the first upstream rib 61A and the recording head 37, and between the second upstream rib 62A and the recording head 37.

[0062] In this embodiment, the height of the second upstream rib 62A is higher than the height of the second midstream rib 62B, and the height of the second midstream rib 62B is higher than the height of the second downstream rib 62C. This suppresses the generation of mist caused by an increased gap between the second upstream rib 62A and the recording head 37, while preventing the leading or trailing end of the medium from contacting the second midstream rib 62B or the second downstream rib 62C.

[0063] Furthermore, in this embodiment, since the height of the first upstream rib 61A and the height of the first midstream rib 61B are the same, it is possible to suppress the generation of mist caused by the widening of the gap between the first upstream rib 61A and the recording head 37, and the gap between the first midstream rib 61B and the recording head 37, while suppressing contact between the leading or trailing end of the medium and the first downstream rib 61C.

[0064] Furthermore, because the medium curls upwards as it absorbs ink, its edges in the width direction tend to droop. In this embodiment, since the height of the second upstream rib 62A provided in the second region A2 located on both sides in the width direction relative to the first region A1 is less than or equal to the height of the first downstream rib 61C, it is possible to suppress contact between the ends of the medium in the width direction and the second rib 62 provided in the second region A2. In this embodiment, the height of the second upstream rib 62A is lower than the height of the first downstream rib 61C, but the heights of the second upstream rib 62A and the first downstream rib 61C may be the same.

[0065] In Figure 9, the height indicated by the symbol Z3, i.e., the position in the Z-axis direction, is the height of the top of the first upstream rib 61A. The height indicated by the symbol Z2 is the height of the top of the second upstream rib 62A. The height indicated by the symbol Z1 is the height of the top of the second downstream rib 62C. The height indicated by the symbol Z0 is the height in the direction of the base end of the first rib 61 and the base end of the second rib 62. In this embodiment, the height of the first downstream rib 61C is slightly higher than the height position Z2, which is the height position of the second upstream rib 62A.

[0066] Furthermore, the above structure can be rephrased as follows. The liquid receiving section 60 includes an upstream liquid receiving area and a downstream liquid receiving area located downstream of the transport path 20 relative to the upstream liquid receiving area. For example, the first area A1 can be designated as the liquid receiving section, the area where the first upstream rib 61A is located can be designated as the upstream liquid receiving area, and the area where the first downstream rib 61C is located can be designated as the downstream liquid receiving area. If the first upstream rib 61A is designated as the upstream rib and the first downstream rib 61C as the downstream rib, the height of the upstream rib is higher than the height of the downstream rib. With this configuration, it is possible to suppress the generation of mist caused by the widening of the gap between the upstream rib and the recording head 37, while suppressing contact between the leading or trailing end of the medium and the downstream rib. As described above, the upstream liquid receiving region and the downstream liquid receiving region, and the upstream ribs and the downstream ribs are in a relative relationship. This relationship is not limited to the relationship between the first upstream rib 61A and the first downstream rib 61C given as an example above, but can be applied to the relationship between any two ribs among the first upstream rib 61A, the first midstream rib 61B, and the first downstream rib 61C. Similarly, by using the second region A2 as a liquid receiving section, the relationship between the upstream rib and the downstream rib described above can also be applied to the relationship between any two ribs among the second upstream rib 62A, the second midstream rib 62B, and the second downstream rib 62C.

[0067] In this embodiment, the height of the first upstream rib 61A and the height of the first midstream rib 61B are the same, but the height of the first upstream rib 61A may be higher than the height of the first midstream rib 61B. Also, in this embodiment, the height of the first midstream rib 61B is higher than the height of the first downstream rib 61C, but the height of the first midstream rib 61B may be the same as the height of the first downstream rib 61C. Alternatively, the height of the first midstream rib 61B may be higher than the height of the first downstream rib 61C. Alternatively, the height of the first midstream rib 61B may be lower than the height of the first downstream rib 61C.

[0068] In this embodiment, the height of the second upstream rib 62A is higher than the height of the second midstream rib 62B, but the height of the second upstream rib 62A may be the same as the height of the second midstream rib 62B. Also in this embodiment, the height of the second midstream rib 62B is higher than the height of the second downstream rib 62C, but the height of the second midstream rib 62B may be the same as the height of the second downstream rib 62C. Alternatively, the height of the second midstream rib 62B may be lower than the height of the second downstream rib 62C.

[0069] In this embodiment, the support member 38 has a first support portion 63, a second support portion 64, a third support portion 65, and a fourth support portion 66 as parts that support the medium. The second support portion 64 and the third support portion 65 are located within the first region A1. In the transport path 20, at least a portion of the multiple first upstream ribs 61A is located between the first support portion 63 and the second support portion 64. Furthermore, in the transport path 20, at least a portion of the multiple first midstream ribs 61B is located between the second support section 64 and the third support section 65. Furthermore, in the transport path 20, at least a portion of the multiple first downstream ribs 61C are located between the third support portion 65 and the fourth support portion 66. Furthermore, a first upstream rib 61A or a first midstream rib 61B is positioned between two adjacent second support portions 64 in the width direction. Furthermore, a first midstream rib 61B or a first downstream rib 61C is positioned between two adjacent third support portions 65 in the width direction.

[0070] With the above configuration, the second support portion 64 and the third support portion 65 can support the medium within the first region A1, thereby suppressing the sagging of the medium. Furthermore, since at least one of the first upstream rib 61A and the first midstream rib 61B is positioned between two adjacent second support portions 64 in the width direction, ink can be received between the two adjacent second support portions 64. Furthermore, since at least one of the first midstream rib 61B and the first downstream rib 61C is positioned between two adjacent third support portions 65 in the width direction, ink can be received between the two adjacent third support portions 65.

[0071] In this embodiment, a portion of the first upstream rib 61A and a portion of the first midstream rib 61B are arranged between two adjacent second support portions 64 in the width direction. In Figure 9, reference numeral R1a indicates the arrangement area of ​​the first upstream rib 61A in the conveying direction, and reference numeral R1b indicates the arrangement area of ​​the first midstream rib 61B in the conveying direction. In this embodiment, a portion of the first midstream rib 61B and a portion of the first downstream rib 61C are arranged between two adjacent third support portions 65 in the width direction. In Figure 9, the reference numeral R1c indicates the arrangement region of the first downstream rib 61C in the conveying direction. In Figure 9, the symbol R2a indicates the location of the second upstream rib 62A in the conveying direction, the symbol R2b indicates the location of the second midstream rib 62B in the conveying direction, and the symbol R2c indicates the location of the second downstream rib 62C in the conveying direction.

[0072] The features of this embodiment will be described further below. In this embodiment, the length of the first rib 61 in the width direction is longer than the length of the second rib 62. However, the first rib 61 provided between two adjacent second support portions 64 and between two adjacent third support portions 65 in the width direction is excluded.

[0073] Furthermore, in this embodiment, as shown at position Z0 in Figure 9, the height positions of the base end of the first rib 61 and the base end of the second rib 62 are aligned. That is, the height positions of the bottom of the groove formed between two adjacent first ribs 61 and the bottom of the groove formed between two adjacent second ribs 62 are aligned. As a result, the height dimension of the support member 38 can be suppressed compared to a configuration in which the height positions of the base end of the first rib 61 and the base end of the second rib 62 are misaligned.

[0074] In this embodiment, at least a portion of the nozzles Nb121 to Nb180 (see Figure 10) that eject cyan ink can face the first upstream rib 61A and the second upstream rib 62A. Furthermore, at least a portion of the nozzles Nb61 to Nb120 (see Figure 10) that eject magenta ink can face the first midstream rib 61B and the second midstream rib 62B. Furthermore, at least a portion of the nozzles Nb1 to Nb60 (see Figure 10) that eject yellow ink can face the first downstream rib 61C and the second downstream rib 62C. As described above, region Y3 shown in Figure 9 is the location of nozzles Nb121 to Nb180 that eject cyan ink, region Y2 is the location of nozzles Nb61 to Nb120 that eject magenta ink, and region Y1 is the location of nozzles Nb1 to Nb60 that eject yellow ink.

[0075] The darker the ink, the more noticeable any mist that forms and adheres to the surface becomes. Therefore, in this embodiment, the nozzles dispensing darker inks are positioned opposite taller ribs, as described above. This suppresses the generation of mist when dispensing cyan ink, the darkest ink, making areas where mist adheres less noticeable. The same applies when dispensing magenta ink; compared to yellow, mist generation is suppressed, making areas where mist adheres less noticeable.

[0076] In this embodiment, as shown in Figure 9, some of the nozzles Nb121 to Nb180 that eject cyan ink can face the first upstream rib 61A and the second upstream rib 62A, but it is also possible for all of the nozzles Nb121 to Nb180 to face either the first upstream rib 61A or the second upstream rib 62A. In this embodiment, some of the nozzles Nb61 to Nb120 that eject magenta ink can face the first midstream rib 61B and the second midstream rib 62B, but all of the nozzles Nb61 to Nb120 may also be able to face either the first midstream rib 61B or the second midstream rib 62B. In this embodiment, some of the nozzles Nb1 to Nb60 that eject yellow ink can face the first downstream rib 61C and the second downstream rib 62C, but all of the nozzles Nb1 to Nb60 may also be able to face either the first downstream rib 61C or the second downstream rib 62C.

[0077] The present invention is not limited to the embodiments and modifications 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 are also included within the scope of the present invention. [Explanation of Symbols]

[0078] 1...Printer, 2...Recording unit, 3...Scanner unit, 4...Reading unit, 5...Document cover, 6...Platen, 7...Ink reservoir, 7a...Ink level indicator window, 8...Cover, 9...Cap lever, 10...Operation panel, 11...Outlet, 12...Media receiving tray, 13...Support arm, 14...Media support unit, 15...Support unit, 15a...Bent support unit, 15b...Oscillating shaft, 16...Oscillating support unit, 17A, 17B...Edge guide, 20...Transport path, 23...Feeding roller, 23a...Rotating shaft, 24...Separation roller, 25...Support member, 26...Transport roller pair, 27...Transport drive roller, 28...Transport driven roller, 29...Roller support member, 32...Outlet roller pair, 33...Outlet drive roller, 34...Outlet driven roller, 35...Recording unit, 36...Carriage, 37...Recording head, 37a...Head surface, 38 ...support member, 39...base frame, 39a...bearing section, 40...main frame, 41a, 41b, 41c...wall section, 44...holding member, 44a...attachment / detachment operation section, 45...suction pump, 46...waste liquid storage section, 47...ink tube, 48...carriage belt, 49...carriage motor, 50...main circuit board, 52...drive pulley, 53...driven pulley, 54...holder, 55...compression coil spring, 60...Liquid receiving section, 61...First rib, 61A...First upstream rib, 61B...First midstream rib, 61C...First downstream rib, 62...Second rib, 62A...Second upstream rib, 62B...Second midstream rib, 62C...Second downstream rib, 63...First support section, 64...Second support section, 65...Third support section, 66...Fourth support section, 90...Maintenance section, 92, 93...Tube, A1...First region, A2...Second region, A3...Third region

Claims

1. A liquid dispensing head that performs recording by dispensing liquid onto a medium in a transport path that transports the medium, A support portion that supports the medium at a position opposite the liquid dispensing head, A portion provided on the support portion, comprising a liquid receiving portion that receives the liquid discharged from the liquid discharge head, A transport unit located upstream of the support unit in the transport path, which transports the medium, Equipped with, The liquid receiving section is provided with multiple ribs extending along the width direction, which is a direction intersecting the medium transport direction, spaced apart along the medium transport direction. The liquid receiving portion has a first region and a second region located on both sides of the width direction relative to the first region, as a region for receiving liquid. The second region is a region that receives liquid discharged at a position away from the edge of the medium in the width direction, The plurality of ribs provided in the first region are referred to as first ribs, and the plurality of ribs provided in the second region are referred to as second ribs. Of the plurality of first ribs, the rib located furthest upstream in the conveying path is designated as the first upstream rib, the rib located downstream of the first upstream rib in the conveying path is designated as the first midstream rib, and the rib located downstream of the first midstream rib in the conveying path is designated as the first downstream rib. Of the multiple second ribs, the rib located furthest upstream in the transport path is designated as the second upstream rib, the rib located downstream of the second upstream rib in the transport path is designated as the second midstream rib, and the rib located downstream of the second midstream rib in the transport path is designated as the second downstream rib. The height of the first upstream rib is greater than or equal to the height of the first midstream rib, and greater than the height of the first downstream rib. The height of the second upstream rib is greater than or equal to the height of the second midstream rib, and greater than the height of the second downstream rib. A recording device characterized by the following features.

2. In the recording device according to claim 1, The height of the second upstream rib is higher than the height of the second midstream rib. The height of the second midstream rib is higher than the height of the second downstream rib. A recording device characterized by the following features.

3. In the recording device according to claim 1, The height of the first upstream rib and the height of the first midstream rib are the same. A recording device characterized by the following features.

4. In the recording device according to claim 1, The height of the second upstream rib is less than or equal to the height of the first downstream rib. A recording device characterized by the following features.

5. In the recording device according to claim 1, The aforementioned support portion is a part that supports the medium, Multiple first support parts are arranged at intervals along the width direction, A plurality of second support parts are located downstream of the first support part in the transport path and are arranged at intervals along the width direction, A third support portion is located downstream of the transport path relative to the second support portion and is arranged in multiple locations at intervals along the width direction, A fourth support portion is located downstream of the transport path relative to the third support portion and is arranged at intervals along the width direction, It has, The second support portion and the third support portion are located within the first region, In the transport path, at least a portion of the plurality of first upstream ribs is located between the first support portion and the second support portion. In the transport path, at least a portion of the plurality of first midstream ribs is located between the second support portion and the third support portion. In the transport path, at least a portion of the plurality of first downstream ribs is located between the third support portion and the fourth support portion. Between two adjacent second support portions in the width direction, at least one of the first upstream rib and the first midstream rib is positioned. Between two adjacent third support portions in the width direction, at least one of the first midstream rib and the first downstream rib is positioned. A recording device characterized by the following features.

6. In the recording device according to claim 1, The length of the first rib in the width direction is longer than the length of the second rib, A recording device characterized by the following features.

7. In the recording device according to claim 1, The base end of the first rib and the base end of the second rib are at the same height. A recording device characterized by the following features.

8. In a recording device according to any one of claims 1 to 7, The liquid dispensing head has multiple nozzles for dispensing liquid, Multiple nozzles include: A first nozzle that dispenses a liquid of a first color, A nozzle for dispensing a liquid of a second color which is darker than the first color, wherein the second nozzle is located upstream of the first nozzle in the transport path, A nozzle for dispensing a liquid of a third color which is darker than the second color, wherein the third nozzle is located upstream of the second nozzle in the transport path, It includes, At least a portion of the plurality of third nozzles is capable of facing the first upstream rib and the second upstream rib, At least a portion of the plurality of second nozzles is capable of facing the first midstream rib and the second midstream rib, At least a portion of the plurality of first nozzles is capable of facing the first downstream rib and the second downstream rib. A recording device characterized by the following features.

9. In the recording device according to claim 8, The third color is cyan, The second color is magenta. The first color is yellow. A recording device characterized by the following features.

10. A liquid dispensing head that performs recording by dispensing liquid onto a medium in a transport path that transports the medium, A support portion that supports the medium at a position opposite the liquid dispensing head, A portion provided on the support portion, comprising a liquid receiving portion that receives the liquid discharged from the liquid discharge head, A transport unit located upstream of the support unit in the transport path, which transports the medium, Equipped with, The liquid receiving section is provided with multiple ribs extending along the width direction, which is a direction intersecting the medium transport direction, spaced apart along the medium transport direction. The liquid receiving section comprises an upstream liquid receiving region and a downstream liquid receiving region located downstream of the transport path relative to the upstream liquid receiving region. The rib provided in the upstream liquid receiving region is designated as the upstream rib, and the rib provided in the downstream liquid receiving region is designated as the downstream rib, and the height of the upstream rib is greater than the height of the downstream rib. A recording device characterized by the following features.

11. In the recording device according to claim 10, the liquid receiving portion receives liquid inward from both ends of the medium in the width direction. A recording device characterized by the following features.

12. In the recording device according to claim 10, the liquid receiving portion receives liquid outside of both ends of the medium in the width direction. A recording device characterized by the following features.

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