Recording device

Abstract

To solve a problem that a time for moving a shutter may be needed when flushing is performed.SOLUTION: An recording device 1 includes: a recording head 40 which discharges an ink to a medium P from a plurality of nozzles 44 provided on a discharge surface 42a to perform recording; a cap part 61 capable of covering the discharge surface 42a; and a shutter 51 which may be displaced between a shield position where the shutter 51 covers the cap part 61 separated from the discharge surface 42a and an open position where the shutter 51 opens the cap part 61. The shutter 51 has: a facing surface 51a facing the discharge surface 42a in the shield position; and a discharged area DA where the ink is discharged from the nozzles 44 as flushing and which is provided on the facing surface 51a.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present disclosure relates to a recording device. [Background technology]

[0002] Patent Document 1 discloses a printing device having an inkjet head, a cap, a shutter, and a medium transport path. The inkjet head is an example of a recording head, and the printing device is an example of a recording device. The inkjet head prints by ejecting ink from nozzles provided on a nozzle face onto a medium. The cap is movable between a capping position where the nozzle face of the inkjet head is covered to moisturize the nozzle face, and a retreated position where the cap faces the nozzle face across the medium transport path. The shutter is movable between an abutting position where the cap closes an opening of the cap to moisturize the inside of the cap, and a non-abutting position where the shutter does not abut the opening of the cap. It is also disclosed that the shutter functions as a medium guide for guiding the medium in the abutting position along the transport direction of the medium in the medium transport path at the abutting position. It is also disclosed that flushing, in which ink is ejected from the nozzle for the purpose of maintaining a defective state of the nozzle, is performed during a printing operation. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-153132 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the printing device of Patent Document 1, the ink is ejected from the nozzles during flushing toward the cap. In this case, for example, when flushing is performed during a printing operation, the shutter needs to be moved from the contact position to the non-contact position. Also, when printing on the medium is resumed, the shutter needs to be moved from the non-contact position to the contact position. For this reason, in the printing device of Patent Document 1, there is a risk that the time required for nozzle maintenance operations, printing operations, etc. will increase by the time required for the shutter to move when flushing is performed. [Means for solving the problem]

[0005] The recording device includes a recording head that performs recording by ejecting liquid onto a medium from multiple nozzles provided on an ejection surface, a cap portion capable of covering the ejection surface, and a shutter that is movable between a covering position that covers the cap portion away from the ejection surface and an opening position that opens the cap portion, and the shutter has an opposing surface that faces the ejection surface in the covering position, and an ejected area into which the liquid is ejected from the nozzles as flushing, the ejected area being provided on the opposing surface. [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a schematic side view showing an embodiment of a recording apparatus. [Diagram 2] 13 is a perspective view showing the opposing portion when the shutter is in the open position and the cap portion of the cap unit is in the cap position. FIG. [Diagram 3] 13 is a plan view showing the opposing portion and the wiper when the shutter is in the open position and the cap portion of the cap unit is in the cap position. FIG. [Figure 4] FIG. [Diagram 5] FIG. 2 is a diagram showing a drive mechanism that drives a recording head. [Figure 6] FIG. [Figure 7] FIG. 4 is a diagram showing a drive mechanism that drives the cap unit. [Figure 8A] FIG. 4 is a schematic side view showing the print head at the print position and the wiper at the standby position. [Figure 8B] FIG. 4 is a schematic side view showing a wiper wiping the recording head at a wiping position. [Figure 9] FIG. 4 is a schematic cross-sectional view showing the recording head and the opposing portion at the recording position. [Figure 10] FIG. 4 is a schematic cross-sectional view showing the recording head and the opposing portion at the recording position. [Figure 11] FIG. 4 is a schematic cross-sectional view showing the recording head and the opposing portion at the recording position. [Figure 12A] FIG. 4 is a schematic side view showing a drive mechanism that drives the shutter. [Figure 12B] FIG. 4 is a schematic side view showing a drive mechanism that drives the shutter. [Figure 13] FIG. 11 is a plan view showing another embodiment of the shutter. [Figure 14] FIG. 11 is a plan view showing another embodiment of the shutter. [Figure 15] FIG. 11 is a plan view showing another embodiment of the shutter. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Hereinafter, the present disclosure will be described based on the embodiment. In each drawing, the same members are given the same reference numerals, and duplicated descriptions are omitted. In this specification, "same", "same", and "simultaneous" do not only mean that they are completely the same. For example, in this specification, "same", "same", and "simultaneous" include cases where they are the same taking into account measurement errors. Also, for example, in this specification, "same", "same", and "simultaneous" include cases where they are the same taking into account manufacturing variations of the members. Also, for example, in this specification, "same", "same", and "simultaneous" include cases where they are the same to the extent that their functions are not impaired. Therefore, for example, "the dimensions of both are the same" refers to the difference in dimensions between the two being within ±5% of the other dimension, particularly preferably within ±3%, taking into account measurement errors and manufacturing variations of the members.

[0008] 1. Embodiment 1 The recording device 1 is, for example, an inkjet printer capable of recording on sheets of recording paper, which is an example of the medium P.

[0009] In each figure, X, Y, and Z represent three spatial axes that are mutually orthogonal. In this specification, the directions along these axes are defined as the X-axis direction, the Y-axis direction, and the Z-axis direction. When specifying a direction, the positive direction is defined as "+" and the negative direction as "-", and the direction is expressed using both positive and negative signs, with the direction indicated by the arrow in each figure being the + direction and the opposite direction of the arrow being the - direction.

[0010] The Z-axis direction indicates the direction of gravity, the +Z direction indicates the vertical upward direction, and the -Z direction indicates the vertical downward direction. A plane including the X-axis and Y-axis is described as the XY plane, a plane including the X-axis and Z-axis is described as the XZ plane, and a plane including the Y-axis and Z-axis is described as the YZ plane. The XY plane is a horizontal plane. Furthermore, the three spatial axes X, Y, and Z, which are not limited to positive and negative directions, are described as the X-axis, Y-axis, and Z-axis.

[0011] The X-axis direction is the width direction of the recording device 1, which is the width direction of the medium P on which recording is performed. When viewed from an operator positioned in front of the recording device 1, the +X direction is the left side, and the -X direction is the right side.

[0012] The Y axis direction is the depth direction of the recording device 1 and is the direction along the transport direction of the medium P during recording. The +Y direction is the direction from the rear surface of the recording device 1 to the front surface, and the -Y direction is the direction from the front surface to the rear surface of the recording device 1. In this embodiment, of the side surfaces that make up the periphery of the recording device 1, the side surface in the +Y direction is the front surface of the recording device 1, and the side surface in the -Y direction is the rear surface of the recording device 1.

[0013] In the following description, the direction in which the medium P is transported may be referred to as "downstream," and the opposite direction may be referred to as "upstream."

[0014] The medium transport path of the recording device 1 will be described below with reference to Fig. 1. As shown in Fig. 1, the recording device 1 has a medium storage cassette 2 at the bottom of the device. The medium storage cassette 2 stores media P. The medium storage cassette 2 is provided so as to be detachable from the front side of the device.

[0015] A pick roller 3 driven by a motor (not shown) is provided above the medium storage cassette 2. The pick roller 3 is capable of moving forward and backward relative to the medium P stored in the medium storage cassette 2. The pick roller 3 rotates in contact with the medium P stored in the medium storage cassette 2, thereby sending the medium P out of the medium storage cassette 2 in the +Y direction.

[0016] A feed roller 5 driven by a motor (not shown) and a separation roller 6 to which a rotational torque is applied by a torque limiter (not shown) are provided downstream of the medium storage cassette 2. The medium P sent out from the medium storage cassette 2 is separated by being nipped between the feed roller 5 and the separation roller 6, and is sent further downstream.

[0017] A reversing roller 8 driven by a motor (not shown) is provided downstream of the feed roller 5 and the separation roller 6. A first nip roller 9 and a second nip roller 10 are provided around the reversing roller 8. The medium P is nipped between the reversing roller 8 and the first nip roller 9, and is further nipped between the reversing roller 8 and the second nip roller 10 and transported. The transport direction of the medium P is reversed from the +Y direction to the -Y direction by the reversing roller 8, and the medium P is transported downstream.

[0018] A first transport roller pair 15 including a drive roller 16 driven by a motor (not shown) and a driven roller 17 that can rotate by the drive roller 16 is provided downstream of the reversing roller 8. The medium P is transported by the first transport roller pair 15 to a position facing the recording head 40.

[0019] Incidentally, in addition to the medium feeding path from the medium containing cassette 2, the recording device 1 also has a medium feeding path from a medium support unit 12. The medium support unit 12 supports the medium P in an inclined position. The medium P supported by the medium support unit 12 is transported to a first transport roller pair 15 by a feed roller 13 driven by a motor (not shown). A rotational torque is applied to the separation roller 14 by a torque limiter (not shown).

[0020] A medium detection unit 22 is provided upstream of the first transport roller pair 15. A control unit 80 (see FIG. 5), which will be described later, can determine the position of the leading edge of the medium P relative to the recording head 40 based on detection information from the medium detection unit 22. Furthermore, for example, the control unit 80 can position the medium P at a recording start position.

[0021] The recording head 40 performs recording by ejecting ink onto the medium P from multiple nozzles 44 provided on the ejection surface 42a. Ink is an example of a liquid. The recording head 40 is a so-called line head in which multiple nozzles 44 that eject ink are arranged to cover the entire area in the medium width direction. The recording head 40 is configured as a liquid ejection head that is long in the medium width direction and can perform recording over the entire medium width without moving in the medium width direction.

[0022] The ejection surface 42a is a surface facing the medium P. The ejection surface 42a can also be called a liquid ejection surface or a nozzle surface. The ejection surface 42a is formed by a plate member 42 (see FIG. 6), which will be described later.

[0023] The recording apparatus 1 includes a liquid storage unit (not shown). Ink to be ejected from the recording head 40 is supplied from the liquid storage unit to the recording head 40 via a supply tube (not shown).

[0024] A facing portion 50 is provided at a position facing the ejection surface 42a of the recording head 40. The facing portion 50 of this embodiment includes a shutter 51 (see FIG. 2), which will be described later. The shutter 51 supports the medium P. By the shutter 51 supporting the medium P, the facing portion 50 defines a gap between the medium P and the ejection surface 42a. Hereinafter, the gap between the medium P and the ejection surface 42a may be referred to as a platen gap.

[0025] The recording head 40 is provided so as to be movable toward and away from the facing part 50, i.e., in the platen gap adjustment direction. In this embodiment, the platen gap adjustment direction is along the Z-axis direction. Hereinafter, movement of the recording head 40 in the +Z-axis direction may be referred to as "ascending," and movement in the -Z direction may be referred to as "descending."

[0026] 5, the recording apparatus 1 includes a control unit 80. The control unit 80 controls the entire recording apparatus 1. The control unit 80 adjusts the platen gap, for example, by controlling a head movement motor 81. The head movement motor 81 is a drive source for raising and lowering the recording head 40 in the platen gap adjustment mechanism shown in FIG.

[0027] A motor gear 82 is provided on the motor shaft of the head moving motor 81. The motor gear 82 transmits driving force to a pinion gear 85 via gears 83 and 84 and a rotating shaft 86. The pinion gear 85 is fixed to the rotating shaft 86.

[0028] The recording head 40 is held by a guide member (not shown) so as to be displaceable in the Z-axis direction. A rack portion 41d is formed on the recording head 40 along the Z-axis direction. A pinion gear 85 meshes with the rack portion 41d to form a rack-and-pinion mechanism. The pinion gear 85 is provided on a rotation shaft 86.

[0029] Rotation of the head moving motor 81 rotates the pinion gear 85, thereby lifting and lowering the recording head 40. The rack and pinion mechanism, which is made up of the rack portion 41d and the pinion gear 85, is provided near both ends of the recording head 40 in the medium width direction.

[0030] When the recording head 40 rises, it comes into contact with a rise regulating portion (not shown), and further rise is regulated. The control portion 80 detects an increase in the motor drive current value when the recording head 40 comes into contact with the rise regulating portion, and thereby can determine that the recording head 40 is at the upper limit position.

[0031] In addition, the head movement motor 81 is provided with an encoder sensor (not shown), and the control unit 80 can detect the amount of rotation of the head movement motor 81. This allows the control unit 80 to detect the amount of movement of the recording head 40 from the upper limit position, i.e., to grasp the current position of the recording head 40.

[0032] The control unit 80 adjusts the platen gap by raising and lowering the recording head 40 according to the thickness of the medium P based on the medium type included in the received print data. For example, the position of the recording head 40 when recording on plain paper is set to a first recording position. When recording on special paper that is thicker than plain paper, the recording head 40 is positioned at a second recording position that is higher than the first recording position.

[0033] In addition to the multiple recording positions as described above, the movement area of ​​the recording head 40 includes a wiping position where the ejection surface 42a is wiped by a wiper 36 (see FIG. 8A), which will be described later. In this embodiment, the above-mentioned positions of the recording head 40 are, in order in the +Z direction, a first recording position, a second recording position, and a wiping position.

[0034] Returning to Fig. 1, a second transport roller pair 19 is provided downstream of the recording head 40. The second transport roller pair 19 includes a drive roller 20 driven by a motor (not shown), and a driven roller 21 that can rotate following the drive roller 20. The medium P on which recording has been performed is sent downstream by the second transport roller pair 19.

[0035] A third transport roller pair 27 is provided downstream of the second transport roller pair 19, and a discharge roller pair 28 is provided further downstream of the third transport roller pair 27. The path between the third transport roller pair 27 and the discharge roller pair 28 constitutes a face-down discharge path. The medium P on which recording has been performed is discharged by the discharge roller pair 28 to a discharge tray 29 with the most recently recorded surface facing down.

[0036] Next, the cap unit 60 will be described with reference to Fig. 2 and subsequent figures. The cap unit 60 covers the head chip 43 of the recording head 40. Since the head chip 43 is provided on the ejection surface 42a, the cap unit 60 can also be called a member that covers a part of the ejection surface 42a. Furthermore, since the head chip 43 is provided with the nozzles 44, the cap unit 60 can also be called a member that covers the nozzles 44. The head chip 43 will be described later.

[0037] As shown in Fig. 3, an opening 50a is formed in the facing portion 50. A cap unit 60 is provided inside the opening 50a. As shown in Fig. 4, the cap unit 60 includes a base portion 62 and a plurality of cap portions 61. The cap portions 61 are elongated in the X-axis direction. The cap portions 61 include a cap main body portion 61b formed of a resin material or the like, and a recessed portion 61a including a portion that contacts the ejection surface 42a. The recessed portion 61a is formed of an elastic material such as rubber.

[0038] The cap body 61b is held displaceably in the Z-axis direction by a guide portion (not shown) formed on the base portion 62. The cap body 61b has a movement limit in the +Z direction regulated by a restricting portion (not shown) formed on the base portion 62. The cap body 61b is pressed in the +Z direction by a cap spring 63, which is an example of a pressing member. In this embodiment, two cap springs 63 are provided for one cap body 61b.

[0039] A cap tube 73 is connected to each cap body portion 61b. As shown in Fig. 1, the cap tube 73 is connected to a feed pump 76 via a switching portion 75 and a waste liquid tube 72. When the feed pump 76 is operated with the cap portion 61 covering the ejection surface 42a, a negative pressure is generated in the recess 61a of the cap portion 61. As a result, ink is sucked from the nozzles 44 of the recording head 40.

[0040] Ink sucked from the nozzle 44 is stored as waste liquid in the waste liquid storage unit 71 via the cap unit 61, the cap tube 73, the switching unit 75, the waste liquid tube 72, and the feed pump 76. The waste liquid storage unit 71 is provided at a position between the facing unit 50 and the medium storage cassette 2 in the Z-axis direction. The waste liquid storage unit 71 may have an air communication unit so that the waste liquid can be stored in the case, or may have a flexible bag body so that the waste liquid can be stored in the case.

[0041] The switching unit 75 is, for example, a switching valve that switches the connection state between the cap tube 73 and the shutter tube 74 (described later) and the waste liquid tube 72. For example, when ink is discharged from the nozzles 44 of the recording head 40, the switching unit 75 connects the cap tube 73 and the waste liquid tube 72. Also, for example, when ink is collected in the waste liquid storage unit 71 from a receiving chamber 51f (see FIG. 9) of the shutter 51 (described later), the switching unit 75 connects the shutter tube 74 and the waste liquid tube 72.

[0042] 2 to 4, the cap portions 61 are alternately arranged at upstream and downstream positions along the X-axis direction, i.e., the width direction of the medium P. In this embodiment, three cap portions 61 are provided at the upstream position, i.e., in the +Y direction, and four cap portions 61 are provided at the downstream position, i.e., in the -Y direction. Such an arrangement of the cap portions 61 corresponds to the arrangement of the head chips 43 in the recording head 40.

[0043] As shown in Fig. 4, the base portion 62 is held by a guide member (not shown) so as to be displaceable in the Z-axis direction. As shown in Fig. 7, a rack portion 62a is formed on the base portion 62 along the Z-axis direction. A pinion gear 65 meshes with the rack portion 62a to form a rack and pinion mechanism. The pinion gear 65 is driven by the rotation of a cap drive motor 89. This causes the cap unit 60 to rise and fall.

[0044] In addition, in FIG. 7, cross sections of the cap portion 61 at the upstream position and the cap portion 61 at the downstream position are shown in order to show the positions of the cap portion 61 at the upstream position and the cap portion 61 at the downstream position in the Y-axis direction.

[0045] When the cap unit 60 rises, the cap portion 61 comes into contact with the ejection surface 42a of the recording head 40 and covers the ejection surface 42a where the nozzles 44 are open. The position where the cap portion 61 comes into contact with the ejection surface 42a of the recording head 40 and covers the ejection surface 42a where the nozzles 44 are open is referred to as the cap position of the cap portion 61. When the cap portion 61 moves to the cap position, the cap portion 61 is pushed down slightly in the -Z direction against the pressing force of the cap spring 63. This brings the recess 61a into close contact with the ejection surface 42a. When the cap portion 61 moves to the cap position, the recording head 40 is positioned at the lowest position of the multiple recording positions, for example.

[0046] The cap portion 61 is displaced between a cap position and a separate position away from the ejection surface 42a by raising and lowering the cap unit 60. When the cap portion 61 is in the separate position, the cap portion 61 does not protrude from the opposing portion 50 described later (the state in FIG. 10).

[0047] When the cap portion 61 is in the separated position, the cap unit 60 comes into contact with a descent restriction portion (not shown) and is restricted from further descent. The control portion 80 detects an increase in the motor drive current value when the cap unit 60 comes into contact with the descent restriction portion, thereby being able to know that the cap portion 61 is in the separated position.

[0048] Further, the cap drive motor 89 is provided with an encoder sensor (not shown) capable of detecting the amount of rotation of the cap drive motor 89. The encoder sensor enables the control unit 80 to detect the amount of rotation of the cap drive motor 89. This enables the control unit 80 to detect the amount of movement of the cap unit 60 from the separated position, i.e., to grasp the current position of the cap unit 60.

[0049] The cap unit 60 may be configured to be raised and lowered by an actuator such as a solenoid, instead of the motor drive described above.

[0050] When the recording device 1 is in a recording standby state with the power turned off or on, the control unit 80 raises the cap unit 60 to place the cap portion 61 in the cap position. When the control unit 80 receives recording data and performs recording, the control unit 80 lowers the cap unit 60 to move the cap portion 61 from the cap position to the separate position. When the control unit 80 raises and lowers the cap unit 60, the control unit 80 also opens and closes the shutter 51, which will be described later, as will be described later.

[0051] 6, the recording head 40 includes a plate member 42 on a base portion 41. The base portion 41 is a structure in which a flow path is provided therein for supplying ink, which is supplied from a liquid storage portion (not shown), to a head chip 43.

[0052] Plate member 42 is a metal plate and forms ejection surface 42a. A plurality of openings 42d are formed in plate member 42, and head chips 43 are provided in each opening 42d. A plurality of nozzles 44 (see FIG. 1) are provided in head chip 43 along the medium width direction. Plate member 42 and head chip 43 are provided so as to be flush with each other.

[0053] The head tips 43 are arranged alternately at upstream and downstream positions along the X-axis direction, i.e., the medium width direction. In this embodiment, three head tips 43 are provided at upstream positions along the medium width direction, and four head tips 43 are provided at downstream positions along the medium width direction. Corresponding to this arrangement, cap portions 61 covering the head tips 43 are arranged alternately at upstream and downstream positions along the medium width direction (see FIG. 4). The head tips 43 are elongated in the medium width direction, and have a plurality of nozzles 44 (see FIG. 1) along the medium width direction.

[0054] Next, the wiper 36 will be described. As shown in Fig. 3, the recording device 1 includes a wiper frame 30 extending along the medium width direction. A wiper drive motor 31 is provided at the end of the wiper frame 30 in the +X direction. A drive pulley 33 is provided on the motor shaft of the wiper drive motor 31. A driven pulley 34 is provided at the end of the wiper frame 30 in the -X direction. An endless belt 32 is wound around the drive pulley 33 and the driven pulley 34. A wiper carriage 35 is fixed to a part of the endless belt 32.

[0055] When the endless belt 32 rotates due to the rotation of the wiper drive motor 31, the wiper carriage 35 moves along the X-axis direction. In this embodiment, the wiper carriage 35 has the position shown in FIG. 3, i.e., the end position in the +X direction, as its home position. When the device is turned off or in a recording standby state, the wiper carriage 35 is positioned at the home position. The position of the wiper 36 when the wiper carriage 35 is located at the home position is the standby position.

[0056] When the wiper carriage 35 moves in the +X direction from the end in the -X direction to the home position, it comes into contact with a movement restricting portion (not shown), and further movement in the +X direction is restricted. The control portion 80 detects an increase in the motor drive current value when the wiper carriage 35 comes into contact with the movement restricting portion, and thereby can know that the wiper carriage 35 is located at the home position.

[0057] An encoder sensor (not shown) is provided on the wiper drive motor 31. This encoder sensor enables the control unit 80 to detect the amount of rotation of the wiper drive motor 31. This enables the control unit 80 to detect the amount of movement of the wiper carriage 35 from the home position, i.e., to grasp the current position of the wiper carriage 35.

[0058] The wiper carriage 35 is provided with a wiper 36. The wiper 36 is made of an elastic material such as rubber. The wiper carriage 35 moves in the medium width direction while in elastic contact with the ejection surface 42a, whereby the wiper 36 wipes the ejection surface 42a, particularly the head chip 43. The ink removed by wiping is stored in the wiper carriage 35.

[0059] The wiper carriage 35 may be formed in a box shape with an open top, or may be in a semi-closed shape with only the wiper 36 portion open.

[0060] 8A and 8B show the movement of the recording head 40 when the wiper 36 wipes the ejection surface 42a. Fig. 8A shows a state in which the recording head 40 is at the recording position. When the wiper 36 wipes the ejection surface 42a from this state, the control unit 80 raises the recording head 40 to the wiping position, as shown by the change from Fig. 8A to Fig. 8B.

[0061] This forms a gap between the recording head 40 and the facing portion 50, allowing the wiper carriage 35 to enter and contact the ejection surface 42a. In this state, as shown by the arrow Wm, the control unit 80 moves the wiper carriage 35, causing the wiper 36 to wipe the ejection surface 42a.

[0062] When the wiper 36 moves to the end in the -X direction, that is, when the wiper 36 wipes the ejection surface 42a, the wiper carriage 35 moves in the +X direction to return to the home position at the end in the +X direction. Prior to this operation, the control unit 80 may slightly raise the recording head 40 so that the wiper 36 does not come into contact with the ejection surface 42a.

[0063] 8A and 8B, a fitting hole 35a is provided at the end of the wiper carriage 35 in the -X direction. A check valve (not shown) is provided in the fitting hole 35a, and the check valve prevents ink stored in the wiper carriage 35 from leaking out.

[0064] A liquid collection unit 37 is provided at the end in the -X direction in the movement area of ​​the wiper carriage 35. The liquid collection unit 37 has a suction unit 37a, which can be fitted into a fitting hole 35a of the wiper carriage 35. When the wiper carriage 35 moves to the end in the -X direction, the suction unit 37a fits into the fitting hole 35a. When the suction unit 37a fits into the fitting hole 35a, the check valve opens.

[0065] In this state, a pump (not shown) provided in the liquid collection unit 37 is driven to suck up the ink stored in the wiper carriage 35. The liquid collection unit 37 sucks up the ink, for example, when the device is turned off or when the number of times the wiper 36 has wiped the ejection surface 42a reaches a predetermined number.

[0066] Incidentally, instead of installing the liquid collection unit 37 at the end in the -X direction, it may be provided at the end in the +X direction, i.e., on the home position side of the wiper carriage 35. In this case, the suction unit 37a may be configured to fit into the fitting hole 35a when the wiper carriage 35 is located at the home position.

[0067] Next, the facing portion 50 will be described. As shown in Figs. 2, 3, 9 to 11, a second rib 50b extending in the Y-axis direction, i.e., the transport direction of the medium P during recording, is provided at the end of the facing portion 50 in the +Y direction. A plurality of second ribs 50b are formed at appropriate intervals along the X-axis direction, i.e., the width direction of the medium P. An opening 50a is formed in the facing portion 50 on the -Y direction side of the second rib 50b. A cap unit 60 is disposed inside the opening 50a.

[0068] 9 to 11, cross sections of each nozzle 44 of head chip 43 at the upstream and downstream positions are shown in order to show the positions of each nozzle 44 of head chip 43 at the upstream and downstream positions in the Y-axis direction. Also, in FIG. 9 to 11, cross sections of cap part 61 at the upstream position and cross sections of cap part 61 at the downstream position are shown in order to show the positions of cap part 61 at the upstream position and cap part 61 at the downstream position in the Y-axis direction. Also, in FIG. 9 to 11, cross sections of hole 51h at the upstream position and cross sections of hole 51h at the downstream position are shown in order to show the positions of hole 51h at the upstream position and hole 51h at the downstream position in the Y-axis direction.

[0069] The facing part 50 is supported at both ends in the X-axis direction by a main frame (not shown) that constitutes the base of the recording device 1. In this embodiment, each member constituting the facing part 50, such as the shutter 51, is grounded. This prevents static electricity, for example, generated by contact between the second rib 50b and a first rib 51b of the shutter 51 (described later) and the medium P from accumulating on the medium P, the second rib 50b, the first rib 51b, etc.

[0070] Moreover, each member constituting the facing portion 50, such as the shutter 51, is desirably conductive. For example, the shutter 51 in this embodiment is formed of a conductive resin material, but may be formed by casting a metal material. Also, for example, each member constituting the facing portion 50 may be formed of a composite material that is made conductive by adding an inorganic conductor such as carbon fiber to a resin material or by forming a thin conductive film on the surface.

[0071] Next, the shutter 51 will be described. As shown in Figures 2 and 3, the shutter 51 is provided on the facing portion 50. Figures 2 and 3 show a state in which the shutter 51 is located in the open position and the cap portion 61 is located in the cap position.

[0072] The shutter 51 is provided between guide walls 50g provided at both ends in the X-axis direction of the facing portion 50 to be slidable along the transport direction of the medium P during recording. The shutter 51 is provided on the facing portion 50 to be displaceable between a covering position (see FIG. 11) that covers the cap portion 61 that is separated from the ejection surface 42a in the separated position, and an opening position (see FIG. 9) that opens the cap portion 61.

[0073] 11, the shutter 51 in the shielding position is located vertically above, in the +Z direction, the cap portion 61 in the separated position. Also, the shutter 51 in the shielding position is located vertically below, in the -Z direction, the ejection surface 42a of the recording head 40 in the recording position. Therefore, the shutter 51 in the shielding position is located between the cap portion 61 in the separated position and the ejection surface 42a of the recording head 40 in the recording position.

[0074] 9 and 10, the shutter 51 in the open position is located on the -Y side with respect to the cap portion 61 and the recording head 40. Moreover, the shutter 51 in the open position is located on the -Z side with respect to the recording head 40. Moreover, the shutter 51 in the open position is located vertically below the second transport roller pair 19, which is in the -Z direction.

[0075] 2, bosses 51c are provided at both ends of the shutter 51 in the X-axis direction with a gap in the Y-axis direction. A guide hole 50h is formed in the guide wall 50g. The guide hole 50h extends along the Y-axis direction from the upstream end in the transport direction of the medium P during recording toward the downstream, then slopes downward toward the downstream, and then extends along the Y-axis direction again.

[0076] The boss 51c formed on the shutter 51 fits into the guide hole 50h. This guides the shutter 51 in the transport direction of the medium P. This also defines the movement limit of the shutter 51 in the +Y direction, i.e., the upstream direction, and the movement limit of the shutter 51 in the -Y direction, i.e., the downstream direction.

[0077] When the shutter 51 moves from the open position (see FIG. 9) to the blocking position (see FIG. 11), the boss 51c comes into contact with the +Y end of the guide hole 50h, thereby restricting further movement. The control unit 80 can determine that the shutter 51 is in the blocking position by detecting an increase in the motor drive current value when the boss 51c comes into contact with the +Y end of the guide hole 50h.

[0078] Similarly, when the shutter 51 moves from the closed position to the open position, the boss 51c comes into contact with the -Y end of the guide hole 50h, thereby restricting further movement. The control unit 80 can determine that the shutter 51 is in the open position by detecting an increase in the motor drive current value when the boss 51c comes into contact with the -Y end of the guide hole 50h.

[0079] 12A and 12B, at positions on both sides of the facing portion 50 in the X-axis direction, rack members 54 are provided so as to be displaceable in the transport direction of the medium P. The pinion gear 52 that displaces the shutter 51 meshes with a rack portion 54a formed on the rack member 54. When the pinion gear 52 is rotated by the power of the shutter drive motor 88, the rack member 54 is displaced in the Y-axis direction.

[0080] An oblong hole 54b extending in the Z-axis direction is formed in the rack member 54. One of the bosses 51c formed in the shutter 51 has a length in the Y-axis direction longer than the other bosses 51c and fits into the oblong hole 54b. Therefore, when the rack member 54 is displaced in the Y-axis direction, the boss 51c that fits into the oblong hole 54b, i.e., the shutter 51, is displaced in the transport direction of the medium P.

[0081] When the boss 51c passes through the inclined portion of the guide hole 50h, the boss 51c is displaced in the Z-axis direction, but the elongated hole 54b of the rack member 54 extends in the Z-axis direction. This allows the boss 51c to be displaced in the Z-axis direction within the elongated hole 54b. With this configuration, as shown by the change from Fig. 12A to Fig. 12B or the change from Fig. 12B to Fig. 12A, the shutter 51 can be displaced along the guide hole 50h by the rack member 54.

[0082] The shutter 51 has an opposing surface 51a, a first rib 51b, a discharged area DA, and a receiving chamber 51f. The shutter 51 has a rectangular parallelepiped shape that is long in the X-axis direction.

[0083] The facing surface 51a is the upper surface, which is the outer surface in the +Z direction, of the outer surfaces that define the outline of the shutter 51. As shown in Fig. 11, the facing surface 51a faces the ejection surface 42a of the recording head 40 when the shutter 51 is in the blocking position.

[0084] On the facing surface 51a of the shutter 51, a plurality of first ribs 51b extending in the Y-axis direction, i.e., the transport direction of the medium P during recording, are formed at appropriate intervals along the X-axis direction. The first ribs 51b are protrusions that protrude in the +Z direction from the facing surface 51a and extend in the Y-axis direction. When the shutter 51 is in the shielding position, each first rib 51b is provided at a position that continues in the -Y direction from each second rib 50b formed on the facing portion 50. When the shutter 51 is in the shielding position, the first rib 51b supports the medium P together with the second rib 50b. The first rib 51b is an example of a support portion provided on the facing surface 51a.

[0085] Furthermore, a plurality of ejection receiving areas DA (see FIG. 15) into which ink is ejected as flushing from the nozzles 44 of the recording head 40 at the recording position are provided on the opposing surface 51a of the shutter 51. As shown in FIG. 11, in the ejection receiving areas DA (not shown) of this embodiment, a plurality of holes 51h that open toward the ejection surface 42a are provided at positions on the opposing surface 51a that face the nozzles 44 when the shutter 51 is at the blocking position.

[0086] In this embodiment, the holes 51h are through holes that penetrate the upper wall of the shutter 51 including the facing surface 51a. The contour of each hole 51h in this embodiment is the same as the contour of each discharged area DA. Therefore, the holes 51h can be said to be an example of the discharged area DA.

[0087] 2 and 3, the holes 51h are alternately arranged at upstream and downstream positions along the X-axis direction, i.e., the width direction of the medium P. In this embodiment, three holes 51h are provided at the upstream position, i.e., in the +Y direction, and four holes 51h are provided at the downstream position, i.e., in the -Y direction. Such an arrangement of the holes 51h corresponds to the arrangement of the head chips 43 in the recording head 40, on which the nozzles 44 are provided.

[0088] Furthermore, due to the arrangement of the holes 51h, each first rib 51b is divided at a position on the -Y direction side of the +Y direction end of the first rib 51b. As shown in FIG. 11, a chamfered portion 51e is provided at the corner of the +Y direction end of each divided first rib 51b. This makes it possible to prevent the medium P from getting caught on the first rib 51b when the medium P is transported in the downstream direction. Note that the chamfered portion 51e in this embodiment is a C-chamfer, but may be an R-chamfer instead of the C-chamfer.

[0089] The shutter 51 has a receiving chamber 51f capable of receiving ink discharged from the nozzle 44 of the recording head 40 through a hole 51h. The receiving chamber 51f is provided inside the shutter 51. The receiving chamber 51f is provided with an absorber 51g capable of absorbing and holding the ink. For example, a nonwoven fabric or sponge made of polyolefin resin, or paper such as waste paper formed into a plate shape can be used as the absorber 51g. When the shutter 51 is in the shielding position, the upper surface of the absorber 51g disposed in the receiving chamber 51f, which is the surface in the +Z direction, faces the discharge surface 42a of the recording head 40. In addition, a space is formed between the upper surface of the absorber 51g disposed in the receiving chamber 51f and the upper wall of the shutter 51.

[0090] The receiving chamber 51f is also in communication with the waste liquid storage section 71. The receiving chamber 51f is connected to the feed pump 76 via a shutter tube 74 attached to the shutter 51, a switching section 75, and a waste liquid tube 72. When the feed pump 76 is operated, ink is sucked from the receiving chamber 51f. The ink sucked from the receiving chamber 51f is stored as waste liquid in the waste liquid storage section 71 via the shutter tube 74, the switching section 75, the waste liquid tube 72, and the feed pump 76.

[0091] Fig. 9 shows a state in which the cap portion 61 is in the cap position and the shutter 51 is in the open position. Fig. 10 shows a state in which the cap portion 61 is in the remote position and the shutter 51 is in the open position. Fig. 11 shows a state in which the cap portion 61 is in the remote position and the shutter 51 is in the closed position.

[0092] When the recording device 1 is in a recording standby state, such as when the power is turned off or on, the control unit 80 sets the cap unit 60 and the shutter 51 to the state shown in Fig. 9. When recording data is received and recorded in this state, the control unit 80 first moves the cap unit 61 from the cap position to the remote position, as shown by the change from Fig. 9 to Fig. 10. Next, the control unit 80 moves the shutter 51 from the open position to the closed position, as shown by the change from Fig. 10 to Fig. 11.

[0093] This allows the shutter 51 to support the medium P by the first rib 51b provided on the facing surface 51a at a position facing the recording head 40. In other words, the platen gap is defined by the first rib 51b of the shutter 51. When the shutter 51 is located at the blocking position, the shutter 51 covers the opening 50a and the cap portion 61 of the facing portion 50.

[0094] The control unit 80 performs recording by discharging ink from the nozzles 44 of the recording head 40 at the recording position onto the medium P transported between the ejection surface 42a and the first rib 51b of the facing surface 51a. When recording is performed on the surface of the medium P on the ejection surface 42a side, the surface of the medium P on the facing surface 51a side faces the upper surface of the receiving chamber 51f via the hole 51h. Moisture volatilized from the ink in the receiving chamber 51f is supplied to the surface of the medium P on the facing surface 51a side.

[0095] For example, when recording, the difference between the moisture supplied to the medium P from the surface on the ejection surface 42a side and the moisture supplied to the surface on the opposing surface 51a side is defined as the moisture amount difference DM. In this case, the moisture amount difference DM in this embodiment is smaller than when the ejection receiving area DA is not provided on the opposing surface 51a. This can reduce the degree of curling of the medium P caused by the moisture amount difference DM.

[0096] In addition, the atmosphere of the space formed between the surface of the medium P on the opposing surface 51a side and the opposing surface 51a is humidified by moisture supplied from the receiving chamber 51f. This prevents static electricity generated by contact between the second rib 50b and the first rib 51b of the shutter 51 and the medium P from accumulating in the medium P, the second rib 50b, and the first rib 51b.

[0097] Furthermore, between recordings on the medium P, the control unit 80 causes the nozzles 44 of the recording head 40 at the recording position to eject ink toward the holes 51h of the shutter 51 at the blocking position as flushing. Flushing is a maintenance operation of the recording head 40 performed for the purpose of maintaining normal ejection of ink from the nozzles 44. Flushing is performed when the medium P on which recording has been performed is transported in the -Y direction of the holes 51h, and before the leading end, which is the end in the -Y direction of the medium P to be next recorded on, reaches the holes 51h of the shutter 51.

[0098] When the recording job is completed, as shown by the change from Fig. 11 to Fig. 10, the control unit 80 moves the shutter 51 from the blocking position to the open position. Next, as shown by the change from Fig. 10 to Fig. 9, the control unit 80 moves the cap portion 61 from the remote position to the cap position. Note that the cap portion 61 may cover the ejection surface 42a in a configuration in which the cap unit 60 is fixedly provided and the recording head 40 descends from the recording position. In this case, the shutter 51 covers the cap portion 61, which is separated from the ejection surface 42a of the recording head 40, in the blocking position.

[0099] As described above, the recording device 1 according to the first embodiment has the following advantages.

[0100] The recording device 1 includes a recording head 40 that performs recording by ejecting ink from a plurality of nozzles 44 provided on an ejection surface 42a onto a medium P. The recording device 1 also includes a cap portion 61 that can cover the ejection surface 42a. The recording device 1 also includes a shutter 51 that can be displaced between a covering position that covers the cap portion 61 away from the ejection surface 42a and an opening position that opens the cap portion 61. The shutter 51 has an opposing surface 51a that faces the ejection surface 42a in the covering position. The shutter 51 also has an ejection target area DA, where ink is ejected from the nozzles 44 as flushing, that is provided on the opposing surface 51a.

[0101] According to this, flushing can be performed without moving the shutter 51. As a result, the time required to move the shutter 51 when performing flushing can be reduced.

[0102] In the discharged area DA, holes 51h that open toward the discharge surface 42a are provided at positions on the facing surface 51a that face the nozzles 44 when the shutter 51 is in the blocking position. This allows the shutter 51 to receive the ink discharged toward the discharged area DA as flushing on the back side of the facing surface 51a. This makes it possible to prevent, for example, the ink discharged as flushing from adhering to the surface of the medium P on the facing surface 51a side.

[0103] The shutter 51 has a receiving chamber 51f capable of receiving the ink ejected from the nozzle 44 through the hole 51h. This allows the ink ejected from the nozzle 44 to be stored in a position of the shutter 51 different from the ejection receiving area DA. Furthermore, the shutter 51 can store a larger amount of ink ejected from the nozzle 44 than when the ink ejected from the nozzle 44 is stored in the ejection receiving area DA.

[0104] The recording device 1 includes a waste liquid storage section 71 capable of storing ink as waste liquid. The receiving chamber 51f communicates with the waste liquid storage section 71. This allows the volume of the receiving chamber 51f to be smaller than in a case where the waste liquid storage section 71 is not provided, and the shutter 51 can be made smaller in size.

[0105] The ink receiving chamber 51f is provided with an absorber 51g, which can prevent the ink received in the ink receiving chamber 51f from leaking out of the ink receiving chamber 51f due to a change in the position of the recording device 1 when it is moving.

[0106] The facing surface 51a is provided with a first rib 51b that supports the medium P. This allows the shutter 51 to support the medium P with good positional accuracy. Therefore, for example, by performing recording with the recording head 40 on the medium P supported by the first rib 51b, good recording quality can be obtained.

[0107] The recording head 40 records on the medium P located between the ejection surface 42a and the facing surface 51a, and performs flushing at the position where recording is performed. According to this, when recording is performed on the surface of the medium P on the ejection surface 42a side, the surface of the medium P on the facing surface 51a side faces the ejected area DA. Moisture volatilized from the ink ejected to the ejected area DA is supplied to the surface of the medium P on the facing surface 51a side. Note that, when the shutter 51 has the hole 51h and the receiving chamber 51f, moisture volatilized from the ink stored in the receiving chamber 51f is supplied to the surface of the medium P on the facing surface 51a side.

[0108] As a result, the moisture amount difference DM in this embodiment is smaller than when the ejection receiving area DA is not provided on the facing surface 51a. This reduces the degree of curling of the medium P caused by the moisture amount difference DM. This also reduces poor transport of the medium P and deterioration of the quality of recording on the medium P caused by the curling of the medium P.

[0109] Furthermore, in a state where there is no medium P between the ejection surface 42a of the recording head 40 and the opposing surface 51a of the shutter 51, moisture volatilized from the ink ejected to the ejection-receiving area DA is supplied between the ejection surface 42a and the opposing surface 51a. This reduces the amount of moisture contained in the ink volatilizing from the openings of the nozzles 44 during recording, compared to a case where the opposing surface 51a does not have the ejection-receiving area DA. This also makes it possible to expect a reduction in the time required for maintenance of the recording head 40 by reducing the frequency of flushing, and a reduction in the amount of ink consumed and waste liquid by reducing the amount of ink ejected during flushing.

[0110] Also, for example, assume that ink is ejected from the nozzles 44 for recording in a state where the medium P is not between the ejection surface 42a and the opposing surface 51a due to erroneous detection by the medium detection unit 22 or the like. In this case, too, recording by the recording head 40 is performed at a position where flushing is performed, so that ink is ejected from the nozzles 44 during recording toward the ejected area DA. This makes it possible to prevent the inside of the recording device 1 and the medium P from being contaminated by ink ejected from the nozzles 44 in a state where the medium P is not between the ejection surface 42a and the opposing surface 51a.

[0111] The recording device 1 according to the above embodiment of the present disclosure is basically configured as described above, but it is of course possible to modify or omit a part of the configuration without departing from the scope of the present disclosure. In addition, the above embodiment and other embodiments described below can be combined with each other within a technically compatible range. Other embodiments will be described below.

[0112] In the above embodiment, the shutter 51 may have a hole 51v in a position on the facing surface 51a different from the discharged area DA, in addition to the hole 51h. The hole 51v is a through hole penetrating the upper wall of the shutter 51 including the facing surface 51a. For example, as shown in Fig. 13, a plurality of holes 51v may be provided on the facing surface 51a on the -Y direction side of the hole 51h in an area where the first rib 51b is not arranged.

[0113] According to this, when recording is performed on the surface of the medium P on the ejection surface 42a side, the surface of the medium P on the facing surface 51a side faces the holes 51h and the holes 51v. Moisture volatilized from the ink contained in the receiving chamber 51f is supplied to the surface of the medium P on the facing surface 51a side through the holes 51h and the holes 51v. This may reduce the moisture difference DM described above compared to the above embodiment having the hole 51h on the facing surface 51a. This also reduces the degree of curling of the medium P caused by the moisture difference DM described above. This also makes it possible to suppress poor transport of the medium P and deterioration of the quality of recording on the medium P caused by curling of the medium P.

[0114] In the above embodiment, the hole 51h does not have to be a through hole. For example, the hole 51h may be a recess that faces the nozzle 44 on the facing surface 51a and opens toward the ejection surface 42a when the shutter 51 is in the blocking position. The contour of this recess may be the same as the contour of each ejection-receiving area DA. In this case, the recess as the hole 51h can be said to be an example of the ejection-receiving area DA.

[0115] In this case, as shown by cross-hatching in Fig. 14, an absorber 51s capable of absorbing and holding ink may be provided on the bottom surface, which is the surface in the -Z direction of the depression as the hole 51h. In this case, the contour of the absorber 51s may be the same as the contour of each ejection-receiving area DA. In this case, the absorber 51s can be said to be an example of the ejection-receiving area DA. The surface in the +Z direction of the absorber 51s is located on the -Z direction side with respect to the opposing surface 51a.

[0116] In this embodiment, when recording is performed on the surface of the medium P on the ejection surface 42a side, the surface of the medium P on the facing surface 51a side faces the bottom surface of the depression as the hole 51h or the absorber 51s. Moisture volatilized from the ink ejected to the bottom surface of the depression as the hole 51h or the absorber 51s is supplied to the surface of the medium P on the facing surface 51a side. This also reduces the aforementioned moisture amount difference DM compared to the case where the ejection receiving area DA is not provided on the facing surface 51a. This reduces the degree of curling of the medium P caused by the moisture amount difference DM, as in the above embodiment. This also prevents poor transport of the medium P and deterioration of the quality of recording on the medium P caused by curling of the medium P.

[0117] Furthermore, in a state where there is no medium P between the ejection surface 42a of the recording head 40 and the opposing surface 51a of the shutter 51, moisture volatilized from the ink ejected to the bottom surface of the recess as the hole 51h or the absorber 51s is supplied between the ejection surface 42a and the opposing surface 51a. This reduces the amount of moisture contained in the ink volatilizing from the opening of the nozzle 44 during recording, compared to a case where the ejection area DA is not provided on the opposing surface 51a. This also makes it possible to expect a reduction in the time required for maintenance of the recording head 40 by reducing the frequency of flushing, and a reduction in the amount of ink consumed and waste liquid by reducing the amount of ink ejected during flushing.

[0118] In the above embodiment, the hole 51h may not be provided. In this case, the shutter 51 may have an absorber 51r capable of absorbing and holding ink in an area of ​​the facing surface 51a including the discharged area DA and where the first rib 51b is not arranged. For example, as shown in FIG. 15, the absorber 51r is provided in an area of ​​the facing surface 51a indicated by hatching including the discharged area DA outlined by a two-dot chain line. In this case, since the absorber 51r includes each discharged area DA, the absorber 51r can be said to be an example of the discharged area DA. The surface of the absorber 51r in the +Z direction is located on the -Z direction side with respect to the surface of the first rib 51b in the +Z direction.

[0119] In this embodiment, the ink ejected toward the ejected area DA as flushing is diffused toward the area of ​​the absorber 51r that is not the ejected area DA. Then, when recording is performed on the surface of the medium P on the ejection surface 42a side, the surface of the medium P on the facing surface 51a side faces the absorber 51r including the ejected area DA. Moisture volatilized from the ink diffused in the absorber 51r is supplied to the surface of the medium P on the facing surface 51a side. This also makes it possible to reduce the degree of curling of the medium P caused by the moisture difference DM described above, as in the above embodiment. This also makes it possible to suppress poor transport of the medium P and deterioration of the quality of recording on the medium P caused by curling of the medium P.

[0120] Furthermore, in a state where there is no medium P between the ejection surface 42a of the recording head 40 and the opposing surface 51a of the shutter 51, moisture volatilized from the ink diffused in the absorber 51r is supplied between the ejection surface 42a and the opposing surface 51a. This reduces the amount of moisture contained in the ink volatilizing from the openings of the nozzles 44 during recording, compared to a case where the opposing surface 51a is not provided with an ejection receiving area DA. This also makes it possible to expect a reduction in the time required for maintenance of the recording head 40 by reducing the frequency of flushing, and a reduction in the amount of ink consumed and waste liquid by reducing the amount of ink ejected during flushing.

[0121] In the above embodiment, the recording head 40 does not have to be a line head. In this case, the recording head 40 may perform recording by ejecting ink from the nozzles 44 onto the transported medium P while moving in the X-axis direction, which is the width direction of the medium P. In this case, the cap unit 60 may be provided at a position adjacent to the medium transport path along which the medium P is transported in the X-axis direction. The shutter 51 may be provided to be displaceable between a covering position that covers the cap portion 61 in the separated position and an opening position that opens the cap portion 61.

[0122] In this embodiment, for example, when flushing is performed during recording, the recording head 40 moves from the recording position to a position where the ejection surface 42a faces the opposing surface 51a of the shutter 51 in the shielding position. Then, the recording head 40 ejects ink from the nozzles 44 toward the ejection target area DA as flushing. This also makes it possible to perform flushing without moving the shutter 51 while moisturizing the inside of the cap portion 61 with the shutter 51, as in the above embodiment. As a result, the time required to move the shutter 51 when performing flushing can be reduced.

[0123] In the above embodiment, the control unit 80 may cause the recording head 40 to eject ink from the nozzle 44 as flushing in a state in which the receiving chamber 51f is communicated with the atmosphere at a location other than the hole 51h. For example, the control unit 80 may control the switching unit 75 and the feed pump 76 to communicate the receiving chamber 51f with the waste liquid storage unit 71 that is communicated with the atmosphere. Alternatively, an atmosphere communication pipe connected to the switching unit 75 may be provided, and the control unit 80 may control the switching unit 75 to communicate the shutter tube 74 connected to the receiving chamber 51f with the atmosphere communication pipe. According to this, the ink is ejected from the nozzle 44 as flushing toward the receiving chamber 51f, thereby suppressing an increase in pressure in the receiving chamber 51f. This prevents ink droplets that reach the receiving chamber 51f from floating in the space on the recording head 40 side through the hole 51h.

[0124] In the above embodiment, the control unit 80 may supply ink in the waste liquid storage unit 71 to the receiving chamber 51f by controlling the switching unit 75 and the feed pump 76. This may promote the supply of moisture from inside the receiving chamber 51f to the surface of the medium P on the opposing surface 51a side when recording is performed on the surface of the medium P on the ejection surface 42a side.

[0125] In the above embodiment, the recording device 1 may include a cover member that covers the opposing surface 51a of the shutter 51 in the open position. This may prevent moisture volatilized from the ink in the receiving chamber 51f from being discharged to the outside of the receiving chamber 51f through the hole 51h when the shutter 51 is in the open position.

[0126] In the above embodiment, the shutter 51 does not necessarily have to include the absorber 51g in the receiving chamber 51f.

[0127] In the above embodiment, the recording device 1 may include a pump for collecting the ink contained in the receiving chamber 51f in the waste liquid container 71, separate from the feed pump 76. In this case, the recording device 1 does not need to include the switching unit 75.

[0128] In the above embodiment, the ink contained in the receiving chamber 51f does not have to be collected in the waste liquid container 71. In this case, the recording apparatus 1 does not have to include the shutter tube 74 and the switching unit 75. [Explanation of symbols]

[0129] 1...recording device, 2...media storage cassette, 3...pick roller, 5...feed roller, 6...separation roller, 8...reversal roller, 9...first nip roller, 10...second nip roller, 12...media support section, 13...feed roller, 14...separation roller, 15...first conveying roller pair, 16, 20...driving roller, 17, 21...driven roller, 19...second conveying roller pair, 22...media detection section, 27...third conveying roller pair, 28...discharge roller roller pair, 29... discharge tray, 30... wiper frame, 31... wiper drive motor, 32... endless belt, 33... drive pulley, 34... driven pulley, 35... wiper carriage, 35a... engagement hole, 36... wiper, 37... liquid collection section, 37a... suction section, 40... recording head, 41... base section, 41d... rack section, 42... plate member, 42a... ejection surface, 42d... opening, 43... head tip, 44... nozzle, 50... opposing section , 50a...opening, 50b...second rib, 50g...guide wall, 50h...guide hole, 51...shutter, 51a...opposing surface, 51b...first rib, 51c...boss, 51e...chamfered portion, 51f...receiving chamber, 51g, 51r, 51s...absorber, 51h...hole, 51v...hole, 52...pinion gear, 54...rack member, 54a...rack portion, 54b...long hole, 60...cap unit, 61...cap portion, 61a...recess, 61b...cap main body portion, 6 2...base portion, 62a...rack portion, 65...pinion gear, 71...waste liquid storage portion, 72...waste liquid tube, 73...cap tube, 74...shutter tube, 75...switching portion, 76...feed pump, 80...control portion, 81...head moving motor, 82...motor gear, 83...gear, 85...pinion gear, 86...rotating shaft, 88...shutter drive motor, 89...cap drive motor, DA...discharged area, DM...moisture difference, P...medium.

Claims

1. a recording head that performs recording by discharging liquid onto a medium from a plurality of nozzles provided on a discharge surface; A cap portion capable of covering the ejection surface; a shutter that is displaceable between a covering position that covers the cap portion away from the ejection surface and an opening position that opens the cap portion; Equipped with The shutter is an opposing surface that faces the ejection surface in the blocking position; a discharged area onto which the liquid is discharged from the nozzle as flushing, the discharged area being provided on the opposing surface; having A recording apparatus comprising:

2. a hole that opens toward the ejection surface is provided in the ejection area at a position on the opposing surface that faces the nozzle when the shutter is in the blocking position; 2. The recording apparatus according to claim 1,

3. the shutter has a receiving chamber capable of receiving the liquid ejected from the nozzle through the hole; 3. The recording apparatus according to claim 2.

4. a waste liquid storage section capable of storing the liquid as waste liquid, The receiving chamber communicates with the waste liquid storage section.

4. The recording apparatus according to claim 3.

5. The receiving chamber is provided with an absorbent body.

4. The recording apparatus according to claim 3.

6. A support portion for supporting the medium is provided on the facing surface.

2. The recording apparatus according to claim 1,

7. the recording head performs the recording on the medium located between the ejection surface and the facing surface, and performs the flushing at a position where the recording is performed; 7. The recording apparatus according to claim 1, wherein the recording apparatus comprises: a recording unit;

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