Printer

Abstract

To provide a printer which can be formed with high quality.SOLUTION: A printer includes: a head that is housed in a housing and that ejects a liquid onto a medium; an opening and closing cover 200 that has a first partition wall 210 forming a part of a top surface of the housing, and a second partition wall 220 forming a part of a front side A of the housing, and that opens and closes the housing; a suction section configured to suck a gas in the housing; an outer duct 231 fixed to the second partition wall 220 and communicating with the suction section; and mist filters 311 arranged in the outer duct 231. The outer duct 231 has the opening and closing sections 310A, 310B, and the mist filters 311 are detachably attached to the outer duct 231 through the opening and closing sections 310A, 310B.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a printing device. [Background technology]

[0002] Patent Document 1 discloses a liquid ejection device equipped with a suction mechanism that sucks up ink mist that does not adhere to paper and floats among ink droplets ejected from an inkjet head, and deposits it on a filter. The filter is inserted into a filter insertion port provided on the side of the device. When the amount of mist adhering to the filter exceeds a predetermined amount, the user is notified based on data on the amount of ink mist adhering, read from an IC chip attached to the filter. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-80495 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the method described in Patent Document 1 has the problem that it requires a complex configuration, such as providing multiple contact terminals that contact and conduct electricity to the IC chip at the inner end of the filter receiving portion connected to the filter insertion port. [Means for solving the problem]

[0005] The printing device is housed in a housing and has a head that ejects liquid onto a medium, a first partition that forms part of the top surface of the housing, and a second partition that forms part of the front surface of the housing, and is also equipped with an opening / closing cover that opens and closes the housing, a suction unit that sucks in gas inside the housing, a duct that is fixed to the second partition and communicates with the suction unit, and a mist filter that is arranged in the duct, the duct has an opening / closing unit, and the mist filter is arranged to be attachable and detachable via the opening / closing unit. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a schematic diagram illustrating the configuration of a printing apparatus. [Figure 2] FIG. 1 is a perspective view showing the appearance of a printing apparatus. [Figure 3] 3 is a perspective view showing the printing device shown in FIG. 2 with the access cover open. FIG. [Figure 4] FIG. 4 is a perspective view showing the configuration when the opening / closing cover is closed. [Figure 5] FIG. 2 is a perspective view showing the configuration when the opening / closing cover is open. [Figure 6] FIG. 2 is a perspective view showing the configuration of an inner duct and a vertical duct. [Figure 7] FIG. 2 is a perspective view showing the configuration of an opening / closing cover and an opening / closing unit. [Figure 8] FIG. [Figure 9] FIG. 4 is a perspective view showing the configuration of a suction section and an outer duct. [Figure 10] FIG. 4 is a cross-sectional view showing the configuration of an inner duct and a vertical duct. [Figure 11] FIG. 10 is a perspective view of the configuration around the suction unit seen through the window on the top surface. DETAILED DESCRIPTION OF THE INVENTION

[0007] The configuration of the printing device 1 will be described below with reference to the drawings. In the following drawings, three mutually perpendicular axes will be referred to as the X-axis, Y-axis, and Z-axis. The direction along the X-axis will be referred to as the "X-direction," the direction along the Y-axis will be referred to as the "Y-direction," and the direction along the Z-axis will be referred to as the "Z-direction." The direction of the arrow is the + direction, and the direction opposite to the + direction is referred to as the - direction. Note that a view from the +Z direction or the -Z direction is also referred to as a planar view or planar.

[0008] First, the configuration of a printing device 1 will be described with reference to FIG.

[0009] As shown in FIG. 1, the printing device 1 includes a printing unit 3 and a control unit 13. The printing unit 3 performs printing by depositing ink on a medium 2. The control unit 13 is a controller that controls the printing device 1. The printing device 1 is an inkjet printer that prints images such as text and photographs on a medium 2, such as paper, by ejecting ink, which is an example of a liquid, onto the medium 2 as it is transported. The printing unit 3 is a serial type that performs printing while moving back and forth across the width of the medium 2. The printing unit 3 may also be configured as a line type that is provided across the width of the medium 2.

[0010] The printing device 1 includes a printing unit 3, a payout spindle 5, an upstream support unit 6, an upstream transport unit 7, a platen 8, a downstream transport unit 9, a downstream support unit 10, a take-up spindle 12, and a control unit 13. The upstream support unit 6, the upstream transport unit 7, the platen 8, the downstream transport unit 9, and the downstream support unit 10 are located on the transport path along which the medium 2 is transported.

[0011] The payout spindle 5 is a rod-shaped member extending along the X-axis. The payout spindle 5 is supported at both ends in the ±X directions by a frame or the like (not shown). The payout spindle 5 rotatably supports a roll 15 in which a long medium 2 is wound in a cylindrical shape. As the payout spindle 5 rotates, it pays out the medium 2 from the roll 15 toward the upstream support part 6.

[0012] The upstream support unit 6, platen 8, and downstream support unit 10 are members that support the long medium 2 transported in the transport direction. The medium 2 is transported along the surfaces of the upstream support unit 6, platen 8, and downstream support unit 10. The direction along the surfaces of the upstream support unit 6, platen 8, and downstream support unit 10 is the transport direction of the medium 2. The transport direction intersects with the X-axis. The upstream support unit 6, platen 8, and downstream support unit 10 are fixed to a frame (not shown) or the like that supports the entire printing device 1.

[0013] The upstream support unit 6 includes an upstream heating support unit 61, an upstream guide support unit 62, and an upstream heating unit 40. The upstream support unit 6 supports a portion of the medium 2 that is upstream in the transport direction of the portion facing the printing unit 3. The platen 8 is located downstream in the transport direction of the upstream support unit 6. The medium 2 supported by the upstream support unit 6 is transported to the platen 8 by an upstream transport unit 7. The upstream transport unit 7 is located downstream in the transport direction of the upstream support unit 6. The upstream transport unit 7 is also located upstream in the transport direction of the platen 8.

[0014] The upstream transport unit 7 has a first roller 71 and a second roller 72. The first roller 71 and the second roller 72 each extend along the X-axis. The upstream transport unit 7 has a motor (not shown). Power from the motor is transmitted to the second roller 72. The second roller 72 can be rotated by the power from the motor. The medium 2 is sandwiched between the first roller 71 and the second roller 72. The medium 2 can be transported by rotating the second roller 72 while the medium 2 is sandwiched between the first roller 71 and the second roller 72. The upstream transport unit 7 transports the medium 2 toward the platen 8.

[0015] In the printing device 1, the second roller 72 is a drive roller, and the first roller 71 is a driven roller. The drive roller is driven to rotate by power from a motor. The driven roller is driven by the rotation of the drive roller. However, either the first roller 71 or the second roller 72 may be a drive roller or a driven roller. Note that holding the medium 2 between the first roller 71 and the second roller 72 is also expressed as nipping. In the printing device 1, the nip of the medium 2 between the first roller 71 and the second roller 72 can be released by moving the first roller 71 away from the second roller 72.

[0016] In the printing device 1, the nip can be released by raising the first roller 71 relative to the second roller 72. The nip can be changed from the released state to the nipped state by lowering the first roller 71. The presence or absence of the medium 2 does not affect the nipped state and the nipped released state. In other words, the state in which the first roller 71 is raised relative to the second roller 72 is the nipped released state, regardless of whether the medium 2 is present. Similarly, the state in which the first roller 71 is lowered from the released nip state is the nipped state, regardless of whether the medium 2 is present. For example, when a new roll 15 is set on the supply spindle 5, the nip is released so that the leading edge of the medium 2 unwound from the roll 15 can pass between the first roller 71 and the second roller 72.

[0017] The platen 8 is located in the -Z direction of the printing unit 3. The platen 8 faces the printing unit 3 across the transport path. The platen 8 supports the portion of the medium 2 that is printed on by the printing unit 3. The support surface 8A of the platen 8, which faces the +Z direction, is the surface that supports the medium 2. The support surface 8A is approximately horizontal. The platen 8 can apply a suction force to the medium 2. The surface of the platen 8 that faces the printing unit 3 is flat. The support surface 8A of the platen 8 extends over a range where printing by the printing unit 3 is possible. A suction fan may be used to suck air through multiple suction holes formed in the support surface 8A of the platen 8, and the medium 2 may be sucked onto the support surface 8A of the platen 8.

[0018] The printing unit 3 includes a head 25, a carriage 26, and a guide shaft 27. The head 25 has a plurality of nozzles 28 formed therein that eject ink. The plurality of nozzles 28 are open on a nozzle surface 25A of the head 25. The guide shaft 27 is a rod-shaped member that extends along the X-axis. The guide shaft 27 is supported at both ends in the ±X directions by a frame or the like (not shown). The guide shaft 27 guides the movement of the carriage 26.

[0019] The carriage 26 holds the head 25, and is driven by a drive mechanism (not shown) to move the head 25 back and forth in the ±X directions along a guide shaft 27. The head 25 prints on the medium 2 by ejecting ink toward the medium 2 while moving. In the printing device 1, printing is performed by ejecting ink from the head 25 toward an area of ​​the medium 2 that overlaps with the platen 8.

[0020] The medium 2 supported by the platen 8 is transported to the downstream support unit 10 by the downstream transport unit 9. The medium 2 is transported in the +Y direction while being supported on the support surface 8A of the platen 8. The downstream transport unit 9 is located downstream of the platen 8 in the transport direction. The downstream transport unit 9 is also located upstream of the downstream support unit 10 in the transport direction.

[0021] The downstream transport unit 9 has a third roller 91 and a fourth roller 92. The third roller 91 and the fourth roller 92 each extend along the X-axis. The downstream transport unit 9 has a motor (not shown). Power from the motor is transmitted to the fourth roller 92. The fourth roller 92 can be rotated by the power from the motor. The medium 2 is sandwiched between the third roller 91 and the fourth roller 92. The downstream transport unit 9 can transport the medium 2 by rotating the fourth roller 92 with the medium 2 sandwiched between the third roller 91 and the fourth roller 92. The downstream transport unit 9 transports the medium 2 toward the downstream support unit 10.

[0022] The downstream support section 10 is located downstream in the transport direction from the platen 8. The downstream support section 10 supports a portion of the medium 2 that is downstream in the transport direction from a portion that faces the printing section 3.

[0023] The winding shaft 12 is located downstream of the printing unit 3 in the transport direction. The winding shaft 12 winds up the transported medium 2. The winding shaft 12 is located downstream of the downstream support unit 10 in the transport direction. After the medium 2 is transported along the downstream support unit 10, it is wound up by the winding shaft 12.

[0024] The printing device 1 includes an upstream heating section 40, a printing heating section 41, and a downstream heating section 42. The upstream heating section 40 is provided on the upstream support section 6. The upstream heating section 40 heats the medium 2 supported on the first support surface 61A via the upstream support section 6. The printing heating section 41 is provided on the platen 8. The printing heating section 41 heats the medium 2 supported on the support surface 8A via the platen 8. The downstream heating section 42 is provided on the downstream support section 10. The downstream heating section 42 heats the medium 2 supported on the downstream support surface 10A via the downstream support section 10.

[0025] Next, the configuration of the printing device 1 will be described with reference to FIGS.

[0026] As shown in Figures 2 and 3, the printing device 1 includes a housing 100. Leg frames 110 are attached to the housing 100 near both ends in the X direction. Casters 111 and adjusters 112 are provided below the leg frames 110. Using the casters 111, the printing device 1 can be easily moved. Using the adjusters 112, the height can be adjusted at multiple points, allowing the printing device 1 to be appropriately installed on the installation surface.

[0027] As described above, the housing 100 includes the printing unit 3, the upstream transport unit 7, the platen 8, the downstream transport unit 9, and the control unit 13. As described above, the printing device 1 also includes the payout spindle 5, the upstream support unit 6, the downstream support unit 10, and the take-up spindle 12 (see FIG. 1).

[0028] The printing device 1 is equipped with a head 25 (see FIG. 1) that ejects ink. The head 25 is housed in a housing 100. The printing device 1 is equipped with a liquid supply unit 120 that supplies ink to the head 25. The liquid supply unit 120 and the head 25 are configured so that ink can be supplied via a liquid supply path (not shown).

[0029] The printing device 1 performs printing by ejecting ink onto the transported medium 2 while moving the head 25 back and forth in the X direction. A blower 130 that blows air onto the medium 2 is provided in a portion of the printing device 1 facing the downstream support unit 10. By blowing air onto the medium 2, the ink ejected onto the medium 2 can be dried.

[0030] On the front side A of the housing 100, there is provided an opening / closing cover 200 having a first partition 210 that forms part of the top surface 100a of the housing 100 and a second partition 220 that forms part of the front side A of the housing 100. The front side A is the state when the printing device 1 is viewed from the +Y direction to the -Y direction. The back side B is the state when the printing device 1 is viewed from the -Y direction to the +Y direction. The opening / closing cover 200 opens and closes part of the housing 100 around a rotation axis (not shown) (see FIG. 3).

[0031] Next, the configurations of the opening / closing cover 200, the ducts 231 and 232, and the mist filter 311 will be described with reference to FIGS.

[0032] FIG. 4 shows the configuration of the housing 100 when the opening / closing cover 200 is closed. FIG. 5 shows the configuration of the opening / closing cover 200 and the inner duct 232 when the opening / closing cover 200 is open. FIG. 6 shows the configuration of the inner duct 232, including the vertical duct 233. FIG. 7 shows the configuration of the first opening / closing section 310A, the second opening / closing section 310B, and the mist filter 311 arranged on the opening / closing cover 200. FIG. 8 shows the configuration of the opening / closing cover 200 as viewed from the inner duct 232 side, i.e., from the rear side B. FIG. 9 shows the configuration of the opening / closing cover 200 when the first partition wall 210 is removed. FIG. 10 shows the cross-sectional configuration of the inner duct 232 and the vertical duct 233. FIG. 11 shows the internal configuration of the housing 100 as viewed through the window 320 provided in the first partition wall 210.

[0033] 4, opening / closing cover 200 has, as described above, first partition 210 that constitutes part of top surface 100a of housing 100, and second partition 220 that constitutes part of front side A (see FIG. 3) of housing 100. When opening / closing cover 200 is closed, the transport path is located in the -Z direction of second partition 220, and a gap necessary for ejecting medium 2 from housing 100 is provided. Second partition 220 may be formed of a transparent material.

[0034] The first partition wall 210 is provided with a window 320 through which the inside of the housing 100 can be seen from the outside of the housing 100. The window 320 is made of, for example, transparent glass or transparent synthetic resin.

[0035] An outer duct 231 serving as a duct is fixed to the outer side of the second partition wall 220, i.e., on the +Y direction side (see FIG. 9). Specifically, a right duct 231A is provided on the right side of the second partition wall 220, i.e., on the -X direction. A left duct 231B is provided on the left side of the second partition wall 220, i.e., on the +X direction.

[0036] Furthermore, a first opening / closing unit 310A and a second opening / closing unit 310B for opening and closing the outer duct 231 are provided on the front side of the outer duct 231. When the first opening / closing unit 310A and the second opening / closing unit 310B are opened, a mist filter 311 for absorbing mist inside the housing 100 is detachably arranged inside the outer duct 231 (see FIGS. 7 and 9).

[0037] The mist filter 311 arranged inside the outer duct 231 corresponding to the open / close position of the first opening / closing unit 310A and the mist filter 311 arranged inside the outer duct 231 corresponding to the open / close position of the second opening / closing unit 310B have the same shape. Because the mist filters 311 have the same shape, they can be used in common even when replaced. Because a common mist filter 311 is used, it can be attached to either the left or right duct 231A, 231B. Furthermore, for example, if the state of mist adhesion differs depending on the scanning range of the head 25, by replacing the mist filters 311, it is possible to equalize the usage state and extend the life of the mist filters 311.

[0038] 5, an inner duct 232 communicating with an outer duct 231 is fixed to the housing 100. Connection portions 230 connecting the outer duct 231 and the inner duct 232 are provided at both ends of the second partition wall 220 in the X direction (see FIG. 4).

[0039] 9, the second partition 220 of the open / close cover 200 is provided with a suction unit 330 that sucks in gas 300 inside the housing 100. The gas 300 includes mist that accumulates inside the housing 100 when ink is ejected from the nozzles 28 onto the medium 2. The suction unit 330 and the outer duct 231 are in communication with each other via a mist filter 311.

[0040] Specifically, gas 300 sucked through suction unit 330 passes through mist filter 311, which adsorbs mist contained in gas 300. Gas 300 that has passed through mist filter 311 passes through outer duct 231 and enters inner duct 232 via connection unit 230. Gas 300 that has entered inner duct 232 passes through vertical duct 233 (see FIG. 6) and is discharged to the outside of housing 100 via airflow generating unit 234, such as an exhaust fan.

[0041] As shown in Fig. 5, the inner duct 232 has an inner connection opening 230A that opens toward the front side A and is connected to the outer duct 231. Specifically, the inner connection opening 230A is inclined so as to face the front side A and upward, i.e., in the +Z direction. In other words, the inner connection opening 230A is inclined obliquely upward. As shown in Fig. 8, the outer duct 231 has an outer connection opening 230B that is configured to be able to move toward and away from the inner connection opening 230A as the opening and closing cover 200 is opened and closed.

[0042] 6, the inner duct 232 has a vertical duct 233. The vertical duct 233 is in communication with the airflow generation unit 234. In other words, the vertical duct 233 is disposed closer to the airflow generation unit 234 than the inner connection opening 230A. In other words, the vertical duct 233 is disposed midway in the flow path connecting the inner connection opening 230A and the airflow generation unit 234.

[0043] The vertical duct 233 is made of, for example, a hollow angular member. The vertical duct 233 also functions as a frame that constitutes the housing 100.

[0044] In this way, since vertical duct 233 is provided, gas 300 that has passed through opening / closing cover 200 from suction section 330 can be discharged to the lower outside of housing 100 via vertical duct 233. Therefore, gas 300 containing mist that remains inside housing 100 can be removed.

[0045] Moreover, since the vertical duct 233 is made of a hollow angular member, it can be used as a frame for the housing 100 and can discharge the gas 300 below the housing 100. Furthermore, since the vertical duct 233 functions as a frame, it is possible to reduce the amount of material used and the associated costs.

[0046] 5 and 6, the vertical duct 233 made of a rectangular member has an upper opening 233a that opens across multiple surfaces, and a lower opening 233b that is formed below the upper opening 233a and also opens across multiple surfaces. Specifically, the upper opening 233a opens across, for example, two side surfaces of the rectangular member extending along the Z direction. The lower opening 233b opens across, for example, two side surfaces of the rectangular member extending along the Z direction. By providing openings across multiple surfaces, the opening area can be made larger than when an opening is provided on a single surface.

[0047] The upper opening 233a receives the gas 300 flowing from the inner connection opening 230A. The lower opening 233b discharges the gas 300 toward the airflow generating section 234. The lower opening 233b is formed above the lower end 233b1 of the horn-shaped member.

[0048] In this manner, the use of a square-shaped member having the upper opening 233a and the lower opening 233b allows the gas 300 inside the housing 100 to be discharged toward the airflow generating unit 234 while changing its flow direction. The lower opening 233b is formed above the lower end 233b1. In other words, the vertical duct 233 extends below the lower opening 233b. Therefore, a light object such as the gas 300 changes direction and flows out from the lower opening 233b provided midway through the vertical duct 233 toward the airflow generating unit 234, whereas a heavy solid object falls within the vertical duct 233 below the lower opening 233b due to gravity. In this embodiment, the inner connection opening 230A is inclined obliquely upward, and therefore, foreign matter may enter through the inner connection opening 230A. However, as the foreign matter passes through the vertical duct 233, it falls below the lower opening 233b and does not flow toward the airflow generating unit 234. That is, foreign matter can be captured below the lower opening 233b in the vertical duct 233. This reduces the chance of the foreign matter coming into contact with the airflow generating part 234, thereby reducing the occurrence of breakdowns.

[0049] Next, the configuration of the suction part 330 and the mist filter 311 as viewed from the window 320 of the first partition wall 210 will be described with reference to FIG.

[0050] 11, the first partition 210 of the housing 100 is provided with a transparent window 320 through which the inside of the housing 100 can be seen. The second partition 220 is provided with a suction section 330 on the inside (see FIG. 9). The suction section 330 is provided with a plurality of suction holes 331 that suck in the gas 300 inside the housing 100.

[0051] A mist filter 311 is disposed between the suction unit 330 and the outer duct 231. By disposing it in this manner, the mist filter 311 can be seen from inside the housing 100 through the suction holes 331. That is, the suction holes 331 can also be seen through the transparent window 320 of the first partition wall 210, and the degree of dirt on the mist filter 311, i.e., the state of mist adhesion, can be confirmed through the suction holes 331.

[0052] As described above, the printing device 1 of this embodiment is housed in the housing 100 and has a head 25 that ejects liquid onto the medium 2, a first partition 210 that forms part of the top surface 100a of the housing 100, and a second partition 220 that forms part of the front side A of the housing 100, and is also provided with an opening / closing cover 200 that opens and closes the housing 100, a suction unit 330 that sucks in gas 300 inside the housing 100, an outer duct 231 that is fixed to the second partition 220 and communicates with the suction unit 330, and a mist filter 311 that is arranged in the outer duct 231, the outer duct 231 having opening / closing units 310A and 310B, and the mist filter 311 is arranged to be detachable via the opening / closing units 310A and 310B.

[0053] According to this configuration, the outer duct 231 of the second partition wall 220 has the opening / closing sections 310A, 310B, and the mist filter 311 is disposed inside the opening / closing sections 310A, 310B, so that the mist filter 311 can be replaced on the front side A of the housing 100. Also, the amount of mist adhering to the mist filter 311 can be checked simply by opening the opening / closing sections 310A, 310B on the front side A. Therefore, a complex configuration is not required, the state of mist adhesion can be grasped relatively easily, and further, the mist filter 311 can be easily replaced.

[0054] Furthermore, in the printing device 1 of this embodiment, a plurality of outer ducts 231 are provided, and it is preferable that the mist filters 311 arranged in the outer ducts 231 have the same shape. With this configuration, since the mist filters 311 arranged in the plurality of outer ducts 231 have the same shape, even when replacing the mist filters 311, they can be used in common for the plurality of outer ducts 231, and can be easily replaced. Furthermore, even if the degree of dirtiness varies depending on the location where the mist filters 311 are arranged, they can be replaced between the plurality of ducts.

[0055] Furthermore, in the printing device 1 of this embodiment, it is preferable that the outer duct 231 includes a right duct 231A fixed to the right side when facing the front, and a left duct 231B fixed to the left side. With this configuration, the right duct 231A and the left duct 231B are provided, and a common mist filter 311 is used for each, so it can be attached to either the left or right duct 231A, 231B. Furthermore, for example, if the state of mist adhesion differs depending on the scanning range of the head 25, by replacing the mist filters 311 with each other, it is possible to equalize the usage state and extend the life of the mist filters 311.

[0056] Furthermore, in the printing device 1 of this embodiment, the first partition 210 preferably has a window 320 through which the inside of the housing 100 can be seen, and the suction unit 330 can be seen through the window 320. With this configuration, for example, the window 320 is made of a transparent material, so that the suction unit 330 can be seen from a part of the top surface 100a of the housing 100, i.e., the window 320, and therefore the amount of mist adhering to the mist filter 311 can be checked without opening the opening / closing units 310A and 310B. Therefore, for example, the degree of contamination of the mist filter 311 can be checked even during printing.

[0057] Furthermore, in the printing device 1 of this embodiment, the suction unit 330 preferably has suction holes 331, and is provided so that the mist filter 311 can be seen through the window 320 and the suction holes 331. With this configuration, for example, since the mist filter 311 is disposed adjacent to the suction holes 331, it is possible to ascertain the degree of dirt on the mist filter 311 by checking the inside of the housing 100 from a part of the top surface 100a. [Explanation of symbols]

[0058] 1...printing device, 2...medium, 3...printing unit, 5...feeding spindle, 6...upstream support unit, 7...upstream transport unit, 8...platen, 8A...support surface, 9...downstream transport unit, 10...downstream support unit, 10A...downstream support surface, 12...winding spindle, 13...control unit, 15...roll, 25...head, 25A...nozzle surface, 26...carriage, 27...guide shaft, 28...nozzle, 40...upstream heating unit, 41...print heating unit, 42...downstream heating unit, 61...upstream heating support unit, 61A...first support surface, 62...upstream guide support unit, 71...first roller, 72...second roller, 91...third roller, 92...fourth roller, 100...casing, 100a...top surface, 110...leg frame frame, 111...caster, 112...adjuster, 120...liquid supply section, 130...air blowing section, 200...opening / closing cover, 210...first partition wall, 220...second partition wall, 230...connection section, 230A...inner connection opening, 230B...outer connection opening, 231...outer duct as duct, 231A...right side duct, 231B...left side duct, 232...inner duct, 233...vertical duct, 233a...upper opening, 233b...lower opening, 233b1...lower end, 234...airflow generating section, 300...gas, 310A...first opening / closing section, 310B...second opening / closing section, 311...mist filter, 320...window, 330...suction section, 331...suction hole.

Claims

1. a head housed in a housing and configured to eject liquid onto a medium; an opening / closing cover for opening and closing the housing, the opening / closing cover having a first partition wall constituting a part of the top surface of the housing and a second partition wall constituting a part of the front surface of the housing; a suction unit that sucks gas inside the housing; a duct fixed to the second partition wall and communicating with the suction portion; a mist filter disposed in the duct; Equipped with The duct has an opening and closing portion, The mist filter is disposed in a detachable manner via the opening / closing portion.

2. 2. The printing device according to claim 1, The duct is provided in plurality, The mist filters disposed in the ducts have the same shape.

3. 3. The printing device according to claim 2, The printing device, wherein the duct includes a right duct fixed to the right side and a left duct fixed to the left side when facing the front.

4. 2. The printing device according to claim 1, The printing device, wherein the first partition has a window through which the inside of the housing can be seen, and the suction unit can be seen through the window.

5. 5. The printing device according to claim 4, The suction unit has a suction hole, The printing device is provided so that the mist filter can be seen through the window and the suction hole.

Images