JP2011126152A - Cooling device and fluid jetting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooling device which can maintain a cooling capacity favorable by suppressing the block of an air suction port, and to provide a fluid jetting apparatus equipped with the cooling device. <P>SOLUTION: The cooling device 16 equipped in a printer includes the air suction port 30a arranged at a position opposed to a light irradiation device 15 which irradiates light for promoting the curing of an ink adhering to paper S, a suction chamber 30b which communicates with an atmosphere via the air suction port 30a, a cooling fan 31 which is driven for sucking the air in the suction chamber 30b, a ventilation member 32 which covers the air suction port 30a, and a cleaning roller 33 which is arranged in the suction chamber 30b and slides in contact with the ventilation member 32. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cooling device and a fluid ejection device including the cooling device.

  2. Description of the Related Art Conventionally, fluid ejecting apparatuses such as an ink jet printer include a fluid ejecting head (recording head) that ejects a so-called ultraviolet curable ink, and a light irradiation apparatus that irradiates light containing ultraviolet rays to promote the curing of the landed ink. There was one provided with (ultraviolet irradiation device) and a cooling device arranged at a position facing the light irradiation device. (For example, patent document 1).

  The cooling device provided in the ink jet printer of Patent Document 1 introduces the outside air into the housing through the air inlet and exhausts the air in the housing with a fan, so that the housing serving as the light irradiation device and the light receiving unit is provided. I was trying to cool.

JP 2008-173848 A

  By the way, in Patent Document 1, since a medium such as paper with ink attached passes between the light irradiation device and the cooling device, it is usual to prevent such a medium from entering the casing through the vent hole. A ventilation member such as a mesh is fitted into the intake port. When floating substances such as paper dust and ink mist are sucked into the housing along with outside air as the fan is driven, the floating substances adhere to the ventilation member of the intake port, thereby blocking the intake port. As a result, there is a problem that the cooling capacity is lowered.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a cooling device capable of suppressing the blockage of the intake port and maintaining a good cooling capacity, and a fluid ejecting apparatus including the cooling device. It is to provide.

  In order to achieve the above object, a cooling device of the present invention includes an air intake port disposed at a position facing a light irradiation device that irradiates light that promotes hardening of a fluid attached to a medium, and the air intake port. A suction chamber that communicates with the atmosphere; a suction mechanism that is driven to suck air in the suction chamber; a ventilation member that covers the intake port; and a cleaning member that is disposed in the suction chamber and is in sliding contact with the ventilation member And comprising.

  According to this configuration, even when floating substances such as paper dust and ink mist are sucked together with air and adhere to the ventilation member of the intake port, the cleaning member arranged in the suction chamber is attached by sliding contact with the ventilation member. The kimono can be removed. Therefore, it is possible to maintain the cooling capacity satisfactorily by suppressing the blockage of the intake port.

  In the cooling device of the present invention, the cleaning member is a cleaning roller in which a plurality of vent holes are provided on a peripheral surface and a cavity communicating with the vent hole is provided inside, and a suction fan that sucks the inside of the cavity is provided. Further prepare.

  According to this configuration, since the cleaning member is a cleaning roller, cleaning can be performed efficiently with rotation. Further, when the suction fan sucks the inside of the cavity, the attached matter removed from the ventilation member at the intake port can be discharged, or the floating substance near the ventilation hole can be sucked. Thereby, while maintaining the cleaning function of a cleaning roller, adhesion of the floating substance with respect to a suction mechanism can be suppressed.

In the cooling device according to the aspect of the invention, the cleaning roller is disposed such that an axis is along a conveyance direction of the medium.
According to this configuration, since the cleaning roller is arranged so that the axis line is along the conveyance direction of the medium, it is possible to suppress the entrainment of the medium.

In the cooling device of the present invention, the opening area of the vent hole is larger on the upstream side than on the downstream side in the conveyance direction of the medium.
According to this configuration, in the medium transport direction, there is a tendency that the upstream side has a larger amount of suspended solids floating in the air than the downstream side, but the opening area of the vent is downstream in the medium transport direction. Since the upstream side is larger than the floating side, suspended solids can be sucked efficiently.

  The cooling device according to the present invention includes a fluid ejecting head that ejects a fluid onto a medium, a transport path of the medium, and the fluid ejecting head facing the transport path on one side in the width direction of the transport path. A fluid ejecting apparatus having a supporting plate for supporting and a light irradiating device for irradiating light that promotes curing of the fluid attached to the medium, wherein the opening area of the vent hole is in the width direction of the transport path; The other side is larger than the one side.

  According to this configuration, since the fluid ejecting head is cantilevered by the support plate, in the width direction of the transport path, the air flow rate and flow velocity are larger on the other side than the one side closer to the support plate. There is a tendency that the amount of suspended solids is large. And since the opening area of a ventilation hole is larger on the other side than the one side in the width direction of a conveyance path, a floating substance can be attracted | sucked efficiently.

  In order to achieve the above object, a fluid ejecting apparatus of the present invention includes a fluid ejecting head that ejects a fluid onto a medium, a light irradiating device that irradiates light that promotes hardening of the fluid attached to the medium, and the light irradiation. And the above cooling device in which the air inlet is disposed at a position facing the device.

  According to this structure, the same effect as the cooling device can be obtained.

1 is a front view illustrating a schematic configuration of a printer according to a first embodiment. FIG. 2 is an end view taken along line AA in FIG. 1. Sectional drawing for demonstrating schematic structure of the cooling device of 1st Embodiment. FIG. 4 is a cross-sectional view taken along line BB in FIG. 3. Sectional drawing for demonstrating schematic structure of the cooling device of 2nd Embodiment. Sectional drawing for demonstrating schematic structure of the cooling device of 3rd Embodiment. Sectional drawing for demonstrating schematic structure of the cooling device of 4th Embodiment. Sectional drawing for demonstrating schematic structure of the cooling device of 5th Embodiment. FIG. 9 is a sectional view taken along the line CC in FIG.

(First embodiment)
First, a first embodiment in which the present invention is embodied in an ink jet printer (hereinafter simply referred to as “printer”) which is a kind of fluid ejecting apparatus will be described with reference to FIGS. In the following description, when referring to “front-rear direction”, “left-right direction”, and “up-down direction”, the direction indicated by an arrow in each figure is used as a reference.

  The printer 11 shown in FIG. 1 includes a support plate 12, a transport mechanism 13, a head unit 14, a light irradiation device 15, and a cooling device 16. The transport mechanism 13 includes a platen drum 20, a rotation shaft 21, a paper feed roller 22, a first roller 23, a second roller 24, and a take-up roller 25 that constitute a transport path. The paper S as a medium is a long paper, is unwound from the paper supply roller 22, is wound around the first roller 23, the platen drum 20, and the second roller 24, and is taken up by the take-up roller 25.

  As shown in FIG. 2, the platen drum 20 has a cylindrical shape whose axis extends along the width direction Y that coincides with the front-rear direction, and can be integrally rotated with a rotary shaft 21 that rotates in accordance with driving of a conveyance motor (not shown). It is supported by. Further, the platen drum 20 is cantilevered on the support plate 12 on one side (rear side) in the width direction Y via the rotation shaft 21. The paper S is wound around the platen drum 20 with a predetermined tension, and is conveyed along with the rotation of the paper feed roller 22, the platen drum 20, and the take-up roller 25.

  As shown in FIG. 1, a plurality (six in this embodiment) of head units 14 are arranged so as to surround the platen drum 20. The number of head units 14 can be set arbitrarily. Each head unit 14 includes a fluid ejecting head 26 that ejects ultraviolet curable ink (hereinafter simply referred to as “ink”) as a fluid that cures by reacting with ultraviolet rays to a portion facing the platen drum 20. I have.

  That is, the support plate 12 has a mode in which the fluid ejecting head 26 is cantilevered on the one side (rear side) in the width direction Y via the head unit 14 so as to face the platen drum 20. Then, the sheet S having the back surface wound around the platen drum 20 receives the ink ejected from the fluid ejecting head 26 on the front surface side, and the second roller 24 moves along the transport direction X indicated by an arrow in FIG. It is conveyed toward.

  As shown in FIG. 3, the light irradiation device 15 is arranged on the downstream side of the head unit 14 in the transport direction X so as to face the surface that receives the ink of the paper S, and the ink In adhering to the paper S is cured. Irradiate light that promotes. The light irradiation device 15 includes a light source 27 that emits light including ultraviolet rays, and a reflecting mirror 28 that adjusts the light irradiation direction so that light emitted from the light source 27 is emitted toward the surface of the paper S. ing. As the light source 27, for example, a metal halide lamp is used.

  The cooling device 16 is disposed on the back side of the paper S so as to face the light irradiation device 15 via the paper S in the thickness direction Z of the paper S. The light irradiation device 15 and the cooling device 16 are fixed to the support plate 12 with a predetermined separation distance so as not to contact the paper S.

  The cooling device 16 includes a housing 30 and a cooling fan 31. An intake port 30a is disposed at a position of the housing 30 facing the light irradiation device 15, and the inside of the housing 30 is a suction chamber 30b communicating with the atmosphere via the intake port 30a. The cooling fan 31 constitutes a suction mechanism that is driven to suck the air in the suction chamber 30b. The intake port 30a is covered with a mesh-like ventilation member 32.

  A cleaning roller 33 as a cleaning member that is in sliding contact with the ventilation member 32 is disposed in the suction chamber 30b. The axis of the cleaning roller 33 is arranged along the transport direction X of the paper S, and the cleaning roller 33 is provided with a plurality of vent holes 33a on the peripheral surface. The opening area of the vent hole 33a is larger on the upstream side in the transport direction X than on the downstream side.

  As shown in FIG. 4, the cleaning roller 33 is provided with a cavity communicating with the vent hole 33 a inside, and a plurality of the cleaning rollers 33 are arranged along the width direction Y. The diameter and the number of the cleaning rollers 33 are set such that the installation width of the cleaning roller 33 in the width direction Y is larger than the width of the paper S. Further, a cleaning roller 33 is disposed near the end of the paper S in the width direction Y. The opening area of the vent hole 33a of each cleaning roller 33 is larger in the width direction Y on the other side (front side) than on one side (rear side).

  As shown in FIG. 3, a suction fan 34 that sucks the inside of the cavity of the cleaning roller 33 is provided on the upstream side in the transport direction X of the cleaning roller 33. A motor 35 for rotating the cleaning roller 33 is provided on the downstream side of the cleaning roller 33 in the transport direction X.

  The suction force of each suction fan 34 can be adjusted individually, so that the vicinity of the edge of the sheet S located between the light irradiation device 15 and the ventilation member 32 in the width direction Y is sucked more strongly than the center of the sheet S. The suction force is adjusted as follows. Further, the suction force of the suction fan 34 is set to be weaker than the suction force of the cooling fan 31, and the suction force of the suction fan 34 and the cooling fan 31 is suppressed to the extent that the sheet S is not sucked.

Next, the operation of the cooling device 16 will be described.
When the paper S is conveyed from the paper supply roller 22 toward the take-up roller 25, ink is sequentially ejected from each fluid ejecting head 26 onto the surface of the paper S wound around the platen drum 20. Thereafter, the sheet S transported in the transport direction X is irradiated with light at the light receiving position where the light irradiating device 15 receives light, and drying of the attached ink In is promoted. At this time, since the light emitted from the light source 27 such as a metal halide lamp includes components other than ultraviolet rays, the temperature of the sheet S and the cooling device 16 that are irradiated with light in addition to the light irradiation device 15 is increased. End up.

  Therefore, when the cooling fan 31 is driven, air in the suction chamber 30 b is exhausted through an exhaust duct (not shown), and outside air is sucked into the suction chamber 30 b through the ventilation member 32. Then, the sucked air takes heat from the light irradiation device 15, the paper S, and the ventilation member 32, and is exhausted (exhaust heat) from the suction chamber 30 b to the outside of the housing 30. The device 16 is cooled. In particular, when the width of the sheet S is narrow, the ventilation member 32 directly receives light without the sheet S interposed therebetween, but the suction fan 34 strongly increases the vicinity of the end of the sheet S in the width direction Y. Since the suction force is adjusted so as to suck, the end portion side of the ventilation member 32 having a large temperature rise due to light reception is efficiently cooled.

  Further, when the motor 35 is driven, the cleaning roller 33 rotates and comes into sliding contact with the ventilation member 32. Then, since the cleaning roller 33 is sucked together with the outside air and the floating substances such as paper dust and ink mist adhering to the ventilation member 32 are scraped off, the ventilation member 32 is cleaned.

  Further, when the suction fan 34 is driven, the scraped deposit is peeled off from the cleaning roller 33 by the wind pressure and discharged through the cavity. Note that a filter for collecting deposits may be provided in the suction fan 34 so as to be replaceable. Further, since the suction force of the suction fan 34 is weaker than the suction force of the cooling fan 31, it does not prevent the outside air from being sucked through the vent hole 33a.

According to the first embodiment described above, the following effects can be obtained.
(1) Even when floating substances such as paper dust and ink mist are sucked together with air and adhere to the ventilation member 32 of the intake port 30a, the cleaning roller 33 disposed in the suction chamber 30b is in sliding contact with the ventilation member 32. Thus, the deposits can be removed. Therefore, it is possible to suppress the blockage of the intake port 30a and maintain a good cooling capacity.

  (2) The ventilation member 32 can be efficiently cleaned as the cleaning roller 33 rotates. In addition, the suction fan 34 sucks the inside of the cavity of the cleaning roller 33, so that the deposits removed from the ventilation member 32 of the intake port 30a can be discharged, or the suspended matter near the ventilation hole 33a can be sucked. . Thereby, while maintaining the cleaning function of the cleaning roller, adhesion of floating substances to the cooling fan 31 can be suppressed.

(3) Since the cleaning roller 33 is arranged so that the axis line is along the transport direction X of the paper S, the entrainment of the paper S can be suppressed.
(4) In the transport direction X of the paper S, the upstream side tends to have a larger amount of suspended matter floating in the air than the downstream side, but the cleaning roller 33 has a suction fan upstream in the transport direction X. 34 is provided, and the opening area of the air vent 33a is larger on the upstream side than on the downstream side in the transport direction X of the paper S. Therefore, the floating substance can be sucked efficiently.

  (5) Since the fluid ejecting head 26 and the platen drum 20 are cantilevered by the support plate 12, in the width direction Y, the other side (front side) opened from the one side (rear side) close to the support plate 12. ) Tends to have a higher air flow rate and flow velocity, and more suspended solids. And since the opening area of the vent hole 33a is larger on the front side than on the rear side in the width direction Y, the floating substance can be sucked efficiently.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. Although the second embodiment is different from the first embodiment in that the configuration of the cooling device 16 is changed, the other configurations are the same, and thus the differences will be mainly described below. .

  As shown in FIG. 5, the cooling device 16 of the present embodiment is provided with a plurality of cleaning rollers 40 having different opening areas of the vent holes 40a. The opening area of the ventilation hole 40a in each cleaning roller 40 is equal in the transport direction X. On the other hand, in the cleaning rollers 40 arranged in the width direction Y, the opening area of the vent hole 40a is larger in the cleaning roller 40 on the other side (front side) than on the cleaning roller 40 on one side (rear side). .

  On the peripheral surface of each cleaning roller 40, a brush portion 40b arranged in a spiral shape is erected. And since the brush part 40b is slidably contacted with the ventilation member 32 with rotation of the cleaning roller 40, the deposit | attachment of the ventilation member 32 can be scraped off efficiently. Further, the deposits scraped off by the brush part 40b are sucked through the air holes 40a. At this time, since the brush portion 40b is arranged in a spiral shape, the adhering matter is swept away from the upstream side in the transport direction X toward the downstream side. Since it is provided, the adhered matter scraped off can be sucked smoothly.

According to 2nd Embodiment described above, in addition to the effect similar to said (1)-(3) and (5), the following effects can be acquired.
(6) In the transport direction X of the paper S, the upstream side tends to have a larger amount of suspended matter floating in the air than the downstream side, but the suction fan 34 is upstream in the transport direction X of the cleaning roller 40. Therefore, it is possible to increase the suction force on the upstream side and efficiently suck floating substances.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. Although the third embodiment is different from the first embodiment in that the configuration of the cooling device 16 is changed, the other configurations are the same, and thus the differences will be mainly described below. .

As shown in FIG. 6, the cleaning rollers 50 to 54 provided in the cooling device 16 of the present embodiment are arranged so that the axis thereof obliquely intersects the transport direction X and the width direction Y, and with respect to the ventilation member 32. The length is different depending on the sliding contact range. The cleaning rollers 50 to 54 have ventilation holes 50a to 54a having different opening areas, respectively, and the opening areas of the ventilation holes 50a to 54a are larger in the transport direction X on the upstream side than on the downstream side. Moreover, in the width direction Y, it arrange | positions so that the other side (front side) may become larger than one side (rear side).
According to the third embodiment described above, the same effects as in the above (1), (2), (4), and (5) can be obtained.
(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIG. Although the fourth embodiment is different from the first embodiment in that the configuration of the cooling device 16 is changed, the other configurations are common, and thus the differences will be mainly described below. .

  As shown in FIG. 7, the cooling device 16 constitutes an endless cleaning belt 60 as a cleaning member, a driving roller 61, a driven roller 62, a motor 63 that is a driving source for rotating the driving roller 61, and a suction mechanism. Suction fans 64 and 65 are provided.

  The cleaning belt 60 is wound around the driving roller 61 and the driven roller 62. The driving roller 61 and the driven roller 62 are arranged so that the axes thereof are along the transport direction X, and the driving roller 61 and the driven roller 62 are provided in the vicinity of the end portion of the paper S in the width direction Y. The suction fans 64 and 65 are provided upstream of the drive roller 61 and the driven roller 62 in the transport direction X.

  The cleaning belt 60 is provided with a plurality of ventilation holes 60 a, and the driving roller 61 and the driven roller 62 are also provided with a plurality of ventilation holes (not shown). The vent holes of the driving roller 61 and the driven roller 62 are provided at positions corresponding to the cleaning belt 60, and the vent holes of the driving roller 61 and the driven roller 62 and the vent hole 60 a of the cleaning belt 60 are upstream in the transport direction X. The opening area becomes larger.

  The cleaning belt 60 is provided with a plurality of brush portions 60b. Therefore, as the motor 63 is driven and the drive roller 61 rotates, the cleaning belt 60 rotates and the brush portion 60b is in sliding contact with the ventilation member 32.

  Cavities communicating with the respective air holes are provided inside the drive roller 61 and the driven roller 62, and the suction fans 64 and 65 suck air in the cavities of the drive roller 61 and the driven roller 62. Therefore, when the suction fans 64 and 65 are driven, air near the edge of the sheet S is sucked through the vent holes of the driving roller 61 and the driven roller 62 and the vent hole 60a of the cleaning belt 60.

  Thereby, the edge part vicinity of the paper S is attracted | sucked to the cooling device 16 side, and the contact with respect to the light irradiation apparatus 15 of the paper S is suppressed. Further, when the width of the sheet S is narrow, the ventilation member 32 directly receives light without the sheet S interposed therebetween, but the temperature rise due to light reception is large by driving the suction fans 64 and 65. The end side of the ventilation member 32 is efficiently cooled. Further, in order to make the suction force on the other side (front side) in the width direction Y larger than that on one side (rear side), the suction amount of the suction fan 64 is set larger than the suction amount of the suction fan 65.

According to 3rd Embodiment described above, in addition to the effect similar to (1) and (4), the following effects can be acquired.
(7) Since the driving roller 61 and the driven roller 62 are arranged so that the axes thereof are along the transport direction X of the paper S, the entrainment of the paper S can be suppressed.

(8) Since the fluid ejecting head 26 and the platen drum 20 are cantilevered by the support plate 12, in the width direction Y, the other side (front side) opened from the one side (rear side) close to the support plate 12. ) Tends to have a higher air flow rate and flow velocity, and more suspended solids. Since the suction amount of the suction fan 64 is larger than the suction amount of the suction fan 65, the suspended matter can be sucked efficiently.
(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described with reference to FIGS. Although the fifth embodiment is different from the first embodiment in that the configuration of the cooling device 16 is changed, the other configurations are common, and thus the differences will be mainly described below. .

  As shown in FIG. 8, the cooling device 16 includes a housing 70, a cooling fan 71, a ventilation member 72, a cleaning member 73, a rotating shaft 74 that supports the cleaning member 73, and a drive for rotating the rotating shaft 74 together with the cleaning member 73. A motor 75 as a source is provided. The cooling fan 71 that sucks the air in the suction chamber 70b is disposed at a position on the upstream side in the transport direction X of the housing 70 and at the position on the other side (front side) in the width direction Y. .

  As shown in FIG. 9, the ventilation member 72 and the intake port 70 a of the housing 70 are formed in a circular shape when viewed from the front. The cleaning member 73 is formed so as to extend radially from the rotating shaft 74, and a brush portion 73a is provided upright on the ventilation member 72 side. Therefore, for example, when the cleaning member 73 rotates in the clockwise direction in FIG. 9 as the motor 75 is driven, the brush portion 73a is brought into sliding contact with the ventilation member 72 and scrapes off the deposits.

According to the fifth embodiment described above, in addition to the same effect as the above (1), the following effect can be obtained.
(9) In the transport direction X of the paper S, the upstream side tends to have a larger amount of suspended solids floating in the air than the downstream side, but the cooling fan 71 is upstream of the casing 70 in the transport direction X. Therefore, the floating force can be efficiently sucked by increasing the suction force on the upstream side.

  (10) Since the cooling fan 71 is disposed at a position on the other side (front side) of the housing 70 in the width direction Y, the suction force on the front side with a large amount of suspended matter is increased to remove suspended matter. Efficient suction is possible.

In addition, you may change each said embodiment as follows.
The cleaning rollers 33 and 50 to 54 may include a brush portion, and the brush portion may be in sliding contact with the ventilation member 32.

-The number of cleaning rollers 33, 40, and 50 to 54 can be set arbitrarily.
The axes of the cleaning rollers 33 and 40 may be arranged along the width direction Y, and the axes of the driving roller 61 and the driven roller 62 may be arranged along the width direction Y.

  The support plate 12 may be a back plate that does not support the head unit 14, the platen drum 20, the light irradiation device 15, and the cooling device 16. In this case as well, if the front side is open, the air flow rate and flow velocity of the open front side tends to increase and the amount of suspended solids tends to increase. If the suction amount on the front side is increased by making it larger than the face plate side, the suspended matter can be sucked efficiently.

  A partition is provided in the cleaning rollers 33, 40, 50 to 54 or the driving roller 61 and the driven roller 62 so as to increase the suction force on the upstream side in the transport direction X so as to generate a pressure difference in the cavity. Also good.

The medium that receives the fluid may be a film made of a material that does not allow ink to permeate, such as resin, metal, glass, or ceramic, or paper that penetrates ink using dietary fiber as a raw material.
The medium is not limited to a long sheet, and a sheet-like medium cut into a predetermined length such as a cut sheet may be used.

-You may comprise a conveyance path from the plate-shaped platen which has a planar support surface.
The light source 27 is not limited to a metal halide lamp, and any light source such as a mercury lamp can be used depending on the fluid to be cured.

  In the above embodiment, the fluid ejecting apparatus is embodied as an ink jet printer, but a liquid ejecting apparatus that ejects or discharges liquid other than ink may be employed. The present invention can be used for various liquid ejecting apparatuses including a liquid ejecting head that ejects a minute amount of liquid droplets. In addition, a droplet means the state of the liquid discharged from the said liquid ejecting apparatus, and shall also include what pulls a tail in granular shape, tear shape, and thread shape. The liquid here may be any material that can be ejected by the liquid ejecting apparatus. For example, it may be in a state in which the substance is in a liquid phase, and a flow state such as a liquid material having high or low viscosity, sol, gel water, other solution, liquid resin, or liquid metal (metal melt). In addition, not only a liquid as one state of a substance but also a substance in which particles of a functional material made of a solid such as a pigment or a metal particle are dissolved, dispersed or mixed in a solvent. Further, a liquid ejecting apparatus that ejects a transparent resin liquid such as an ultraviolet curable resin onto a substrate may be employed to form a micro hemispherical lens (optical lens) used for an optical communication element or the like.

  DESCRIPTION OF SYMBOLS 11 ... Printer as fluid ejecting device, 12 ... Support plate, 15 ... Light irradiation device, 16 ... Cooling device, 20 ... Platen drum which comprises conveyance path, 26 ... Fluid ejecting head, 30a, 70a ... Intake port, 30b, 70b ... suction chamber, 31, 71 ... cooling fan constituting suction mechanism, 32, 72 ... ventilation member, 33, 40, 50-54 ... cleaning roller as cleaning member, 33a, 40a, 50a, 51a, 52a, 53a , 54a, 60a ... vent hole, 34, 64, 65 ... suction fan, 60 ... cleaning belt as a cleaning member, 73 ... cleaning member, In ... ink as fluid adhering to the medium, S ... paper as medium, X ... transport direction, Y ... width direction.

Claims (6)

An air intake port disposed at a position facing a light irradiation device that irradiates light that promotes hardening of the fluid attached to the medium;
A suction chamber communicating with the atmosphere via the air inlet;
A suction mechanism driven to suck air in the suction chamber;
A ventilation member that covers the air inlet;
A cleaning member disposed in the suction chamber and in sliding contact with the ventilation member;
A cooling device comprising: The cleaning member is a cleaning roller in which a plurality of vent holes are provided on a peripheral surface and a cavity communicating with the vent hole is provided in the inside.
The cooling device according to claim 1, further comprising a suction fan that sucks the inside of the cavity. The cooling device according to claim 2, wherein the cleaning roller is disposed such that an axis thereof is along a conveyance direction of the medium. 4. The cooling device according to claim 2, wherein an opening area of the vent hole is larger on the upstream side than on the downstream side in the conveyance direction of the medium. 5. A fluid ejecting head that ejects a fluid onto a medium; a transport path of the medium; a support plate that cantilever-supports the fluid ejecting head so as to face the transport path on one side in the width direction of the transport path; and the medium A fluid ejection device having a light irradiation device for irradiating light that promotes the curing of the fluid attached to the fluid,
The cooling device according to any one of claims 2 to 4, wherein an opening area of the vent hole is larger on the other side than the one side in the width direction of the transport path. . A fluid ejecting head that ejects fluid onto a medium;
A light irradiation device for irradiating light that promotes hardening of the fluid attached to the medium;
A fluid ejecting apparatus comprising: the cooling device according to any one of claims 1 to 5, wherein an air inlet is disposed at a position facing the light irradiation device.

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