JP2024130171A - Recording device - Google Patents

Abstract

[Problem] To prevent application of a pretreatment liquid to a medium that is to be pretreated before recording from being in a wrinkled state. [Solution] A recording device 1 including a transport unit 20 for a medium M having a transport belt 5, an ink ejection unit 101 that ejects ink onto the medium M, a pretreatment liquid application unit 101 that applies a pretreatment liquid to the medium M prior to ejecting ink from the ink ejection unit 101 onto the medium M, a pressure roller 6 that is disposed upstream of the pretreatment liquid application unit 101 in the transport direction A and presses the medium M against the transport belt 5, and an anti-wrinkle roller 30 that is disposed upstream of the pressure roller 6 in the transport direction A and smooths out wrinkles in the medium M. [Selected Figure] Figure 1

Description

The present invention relates to a recording device.

Conventionally, media has been pretreated for the purpose of improving the fixation of ink, and recording devices are used that record on pretreated media. Meanwhile, in recent years, recording devices capable of pretreatment have been disclosed to eliminate the need to perform such pretreatment in a separate device. For example, Patent Document 1 discloses an inkjet recording device equipped with a pretreatment head that ejects a pretreatment liquid onto a carriage that can move back and forth.

JP 2022-183384 A

However, in conventional recording devices capable of performing pretreatment, the process known as gumming, which has been performed in a separate device similar to pretreatment to remove wrinkles at the edges of the medium in the width direction by gluing the edges, was not performed, and the pretreatment liquid was sometimes applied when the medium was in a wrinkled state. If the pretreatment liquid is applied when wrinkles have occurred, uneven application of the pretreatment liquid may occur, and there is a risk that the desired recorded matter may not be obtained.

The recording device of the present invention for solving the above problem is characterized by comprising a medium transport unit having a transport belt, an ink ejection unit that ejects ink onto the medium, a pretreatment liquid application unit that applies a pretreatment liquid to the medium prior to ejecting the ink from the ink ejection unit onto the medium, a pressure roller that is arranged upstream of the pretreatment liquid application unit in the transport direction of the medium and presses the medium against the transport belt, and a wrinkle-smoothing roller that is arranged upstream of the pressure roller in the transport direction and smooths out wrinkles in the medium.

FIG. 1 is a side view of a recording apparatus according to a first embodiment of the present invention. FIG. 2 is a plan view showing a region between an anti-wrinkle roller and a carriage in the recording apparatus of FIG. 1, and shows the arrangement of nozzle rows as seen through the inside of a head. FIG. 2 is a front view showing a wrinkle-smoothing roller in the recording apparatus of FIG. 1 . 2 is a front cross-sectional view showing the periphery of a hook portion of the anti-crease roller in the recording apparatus of FIG. 1 ; FIG. 11 is a side view of a recording apparatus according to a second embodiment of the present invention. FIG. 11 is a side view of a recording apparatus according to a third embodiment of the present invention.

First, the present invention will be briefly described.
In order to solve the above problem, a recording device of a first aspect of the present invention is characterized in that it comprises a medium transport unit having a transport belt, an ink ejection unit that ejects ink onto the medium, a pretreatment liquid application unit that applies a pretreatment liquid to the medium prior to ejecting the ink from the ink ejection unit onto the medium, a pressure roller that is arranged upstream of the pretreatment liquid application unit in the transport direction of the medium and presses the medium against the transport belt, and a wrinkle-smoothing roller that is arranged upstream of the pressure roller in the transport direction and smoothes out wrinkles in the medium.

According to this aspect, an anti-wrinkle roller that smooths out wrinkles in the medium is provided upstream of the ink ejection unit and the pretreatment liquid application unit in the transport direction. Therefore, even if wrinkles occur in the medium that is pretreated before recording, the anti-wrinkle roller can smooth out the wrinkles before applying the pretreatment liquid or recording, and it is possible to prevent the application of the pretreatment liquid or recording from being performed in a wrinkled state.

The recording device of the second aspect of the present invention is an aspect dependent on the first aspect, and is characterized in that it includes a control unit, and the control unit controls the rotation of the anti-crease roller based on the transport speed of the medium by the transport unit.

According to this aspect, the control unit controls the rotation of the anti-crease roller based on the transport speed of the medium by the transport unit. If the anti-crease roller were to continue rotating at a high rotation speed regardless of the transport speed of the medium, there is a risk of damaging the medium, but by controlling in this way, it is possible to reduce the risk of damage to the medium.

A recording device according to a third aspect of the present invention is an aspect dependent on the second aspect, characterized in that the transport unit is configured to transport the medium intermittently by repeating a transport operation for transporting the medium and a stop operation for stopping the transport of the medium, and the control unit controls the rotation of the smoothing roller so that the rotation speed of the smoothing roller during the stop operation of the intermittent transport is slower than the rotation speed of the smoothing roller during the transport operation.

According to this aspect, the control unit controls the rotation of the anti-crease roller so that the rotation speed of the anti-crease roller when the intermittent transport is stopped is slower than the rotation speed of the anti-crease roller during the transport operation. By controlling in this way, friction between the anti-crease roller and the medium can be reduced, and the risk of damage to the medium can be particularly effectively reduced.

The recording device of the fourth aspect of the present invention is an aspect dependent on the first aspect, and is characterized in that it includes a control unit and a detection unit that detects the state of wrinkles in the medium, and the control unit controls the rotation of the wrinkle-smoothing roller according to the detection result of the detection unit.

According to this aspect, the control unit controls the rotation of the wrinkle-smoothing roller in response to the detection result of the detection unit. By controlling in this manner, the control unit can effectively suppress wrinkles by speeding up the rotation of the wrinkle-smoothing roller in cases where there are large wrinkles, for example, and can effectively reduce friction between the wrinkle-smoothing roller and the medium M by slowing down the rotation of the wrinkle-smoothing roller in cases where there are no wrinkles or only small wrinkles, thereby effectively suppressing the risk of damage to the medium M.

The recording device of the fifth aspect of the present invention is an aspect dependent on any one of the first to fourth aspects, characterized in that the surface of the anti-crease roller is provided with a spiral hook portion that hooks onto the medium.

According to this embodiment, the surface of the wrinkle-smoothing roller is provided with a spiral hook portion that hooks onto the medium. By using a wrinkle-smoothing roller with this configuration, wrinkles can be effectively smoothed out.

The sixth aspect of the recording device of the present invention is an aspect dependent on any one of the first to fourth aspects, characterized in that it includes a brake roller that applies tension to the medium, and the anti-wrinkle roller is connected to the brake roller so as to rotate by rotating the brake roller.

According to this embodiment, the anti-crease roller is connected to the brake roller so that it rotates by rotating the brake roller. This eliminates the need to provide a separate drive source for rotating the anti-crease roller, simplifying the device configuration and enabling the device to be made smaller.

The seventh aspect of the recording device of the present invention is an aspect dependent on any one of the first to fourth aspects, characterized in that the wrinkle-smoothing rollers are arranged in a line in a width direction intersecting the conveying direction.

According to this embodiment, multiple anti-crease rollers are arranged side by side in the width direction. Wrinkles in the medium are likely to occur at the width direction ends of the medium, but by providing anti-crease rollers only in the areas corresponding to the width direction ends of the medium, for example, it is possible to eliminate the need to extend the anti-crease rollers in the width direction to cover the entire width of the medium, and the anti-crease rollers can be made smaller, which in turn makes it possible to make the device more compact.

The eighth aspect of the recording device of the present invention is a dependent aspect of the seventh aspect, characterized in that at least one of the wrinkle-smoothing rollers is configured to be able to change its position in the width direction.

According to this aspect, at least one of the crease-smoothing rollers is configured to be able to change its position in the width direction. With this configuration, even when media of different widths are used, the position of the crease-smoothing roller in the width direction can be changed according to the media width, and creases in the media can be appropriately removed according to the media width.

[Example 1]
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
First, an overview of a recording apparatus 1A according to a first embodiment of the present invention will be described with reference to Fig. 1 and Fig. 2. As shown in Fig. 1, the recording apparatus 1A according to the first embodiment includes a transport unit 20 capable of transporting a medium M in a transport direction A.

The transport unit 20 includes a payout unit 2 that can set a roll of medium M and rotate in a rotation direction C1 to pay out the medium M. The transport unit 20 also includes a transport belt 5 that can transport the medium M paid out from the payout unit 2 in a transport direction A. The transport unit 20 includes a driven roller 3 located upstream in the transport direction A, a drive roller 4 located downstream in the transport direction A, and a transport belt 5 that is an endless belt stretched across the driven roller 3 and the drive roller 4.

Here, the conveyor belt 5 is an adhesive belt having an outer peripheral surface 5a on which an adhesive is applied to the support surface for the medium M, which is the outer surface. As shown in FIG. 1, the medium M is supported by the conveyor belt 5 and conveyed with the medium M affixed to the outer peripheral surface 5a. In the recording device 1 of this embodiment, the support area for the medium M on the conveyor belt 5 is the upper area bridged by the driven roller 3 and the driving roller 4. The driving roller 4 is a roller that rotates by the driving force of the motor 15, and the driven roller 3 is a roller that rotates by following the rotation of the conveyor belt 5 that accompanies the rotation of the driving roller 4.

The recording device 1A of this embodiment is provided with a driven roller 8 and a driven roller 18 between the payout unit 2 and the conveyor belt 5 in the conveying direction A, which rotate in response to the conveyance of the medium M. A brake roller 7 is provided between the driven roller 8 and the driven roller 18. The brake roller 7 rotates by the driving force of the motor 15, like the driving roller 4, but rotates so that the conveying speed at which the medium M is conveyed by the brake roller 7 as the brake roller 7 rotates in the rotation direction C1 is slower than the conveying speed of the medium M supported and conveyed by the conveyor belt 5. By rotating the brake roller 7 in this manner, tension is applied to the medium M in the conveying direction A between the brake roller 7 and the conveyor belt 5, and the medium M is supported by the conveyor belt 5 in a state where tension is applied in the conveying direction A. In this way, the brake roller 7 is a rotating roller that can apply tension to the medium M. Note that the configuration of the brake roller 7 is not limited to this, and may be configured to rotate by the rotation force of a motor provided separately from the motor 15 that drives the driving roller 4, for example.

As shown in Figs. 1 and 2, the recording device 1A of this embodiment is provided with a pressure roller 6 that presses the medium M against the conveyor belt 5 in the area facing the conveyor belt 5. The recording device 1A of this embodiment is also provided with an anti-wrinkle roller 30 that smooths out wrinkles in the medium M between the brake roller 7 and the pressure roller 6 in the conveyor direction A. Details of the anti-wrinkle roller 30 will be described later.

The recording device 1A of this embodiment also includes a carriage 100 capable of reciprocating in the width direction B of the conveyor belt 5, and a head 101 attached to the carriage 100. The head 101 functions as a recording unit capable of recording an image on a medium M conveyed in the conveying direction A, or in other words, as an ink ejection unit that ejects ink onto the medium M. Furthermore, the head 101 is configured to be capable of ejecting a pretreatment liquid prior to ejecting ink onto the medium M. The head 101 is provided at a position facing the support area of the medium M on the conveyor belt 5, and is capable of ejecting ink and pretreatment liquid.

2, the head 101 includes nozzle array R1, nozzle array R2, nozzle array R3, nozzle array R4, nozzle array R5, nozzle array R6, nozzle array R7, nozzle array R8, and nozzle array R9. Nozzle array R1 and nozzle array R9 are nozzle arrays capable of ejecting pretreatment liquid, nozzle array R2 and nozzle array R8 are nozzle arrays capable of ejecting cyan ink, nozzle array R3 and nozzle array R7 are nozzle arrays capable of ejecting magenta ink, nozzle array R4 and nozzle array R6 are nozzle arrays capable of ejecting yellow ink, and nozzle array R5 is a nozzle array capable of ejecting black ink.

The recording device 1A of this embodiment is capable of ejecting pretreatment liquid from the head 101 onto the transported medium M while moving the carriage 100 back and forth in the width direction B intersecting the transport direction A, and ejecting ink from the head 101 onto the transported medium M to form an image. By being equipped with a carriage 100 configured in this way, the recording device 1A of this embodiment is capable of forming a desired image on the medium M by repeatedly transporting the medium M in the transport direction A by a predetermined transport amount, and ejecting pretreatment liquid and ink while moving the carriage 100 in the width direction B with the medium M stopped.

The nozzle rows R1 to R9 are arranged in the arrangement shown in FIG. 2. When the carriage 100 is moved in the forward direction B1 of the width direction B, the pretreatment liquid is ejected from the nozzle row R1, the cyan ink is ejected from the nozzle row R2, the magenta ink is ejected from the nozzle row R3, the yellow ink is ejected from the nozzle row R4, and the black ink is ejected from the nozzle row R5. On the other hand, when the carriage 100 is moved in the return direction B2 of the width direction B, the pretreatment liquid is ejected from the nozzle row R9, the cyan ink is ejected from the nozzle row R8, the magenta ink is ejected from the nozzle row R7, the yellow ink is ejected from the nozzle row R6, and the black ink is ejected from the nozzle row R5. That is, when the carriage 100 is moved in the forward direction B1 and when it is moved in the return direction B2, the pretreatment liquid is ejected before the ink, and the ejection order of each ink is also the same.

When the medium M on which an image is formed by ejecting ink from the head 101 is ejected from the recording device 1A of this embodiment, it is sent to a drying device that volatilizes the ink components ejected onto the medium M, or a winding device that winds up the medium M on which the image is formed, which are provided downstream of the recording device 1A of this embodiment.

Here, a printable material can be preferably used as the medium M. The printable material refers to the fabric, clothing, and other clothing products that are the subject of printing. Fabrics include woven fabrics, knitted fabrics, and nonwoven fabrics made of natural fibers such as cotton, silk, and wool, chemical fibers such as nylon, and composite fibers that are a mixture of these. Clothes and other clothing products also include sewn T-shirts, handkerchiefs, scarves, towels, carrier bags, cloth bags, curtains, sheets, bed covers, and other furniture, as well as fabrics that exist as parts before and after cutting before sewing. However, in addition to the above-mentioned printable materials, ordinary paper, fine paper, and paper specially designed for inkjet printing such as glossy paper can also be used.

When a printable material is used as the medium M, the printable material is prone to ink bleed-through, a phenomenon in which ink ejected onto the medium M seeps through to the back surface, and the transport belt 5 may become dirty with ink. Therefore, the recording device 1A of this embodiment is equipped with a cleaning unit 9 for cleaning ink that has bled through and adhered to the transport belt 5. The cleaning unit 9 of this embodiment is equipped with a storage unit 14 in which cleaning liquid is stored, a cleaning roller 10 that is soaked in the cleaning liquid and comes into contact with the transport belt 5, and a blade unit 11 that wipes the cleaning liquid that has adhered to the transport belt 5.

The recording device 1A of this embodiment can transport the medium M in the transport direction A by rotating the drive roller 4 in the rotation direction C1. The recording device 1A of this embodiment can also transport the medium M in the opposite direction to the transport direction A by rotating the drive roller 4 in the rotation direction C2, which is the opposite direction to the rotation direction C1. As shown in FIG. 1, the recording device 1A of this embodiment is also equipped with a control unit 40, which controls all of the components of the recording device 1A of this embodiment.

As described above, the recording device 1A of this embodiment includes a transport unit 20 for the medium M having a transport belt 5, and a head 101 as an ink ejection unit that ejects ink onto the medium M. Here, the head 101 also serves as a pretreatment liquid application unit that applies a pretreatment liquid to the medium M prior to ejecting ink onto the medium M. As shown in Figures 1 and 2, the recording device 1A of this embodiment includes a pressure roller 6 that is disposed upstream of the head 101 in the transport direction A and presses the medium M against the transport belt 5, and an anti-wrinkle roller 30 that is disposed upstream of the pressure roller 6 in the transport direction A and smooths out wrinkles in the medium M.

In this way, the recording device 1A of this embodiment is equipped with an anti-wrinkle roller 30 that smooths out wrinkles on the medium M upstream of the head 101 in the transport direction A, so that even if wrinkles occur on the medium M that is pre-treated before recording, the anti-wrinkle roller 30 can smooth out the wrinkles before applying the pretreatment liquid or recording. Therefore, the recording device 1A of this embodiment is configured to prevent the application of the pretreatment liquid or recording from being performed in a wrinkled state.

Next, the wrinkle-smoothing roller 30, which is a main part of the recording device 1A of this embodiment, will be described in detail. As described above, the recording device 1A of this embodiment is equipped with the control unit 40. Here, the control unit 40 can grasp the transport speed of the medium M by the transport unit 20 based on the rotation speed of the drive roller 4, etc., and can control the rotation of the wrinkle-smoothing roller 30 based on the transport speed of the medium M. For example, if the transport speed of the medium M is fast, the rotation of the wrinkle-smoothing roller 30 can be made faster, and if the transport speed of the medium M is slow, the rotation of the wrinkle-smoothing roller 30 can be made slower. If the wrinkle-smoothing roller 30 continues to rotate at a high rotation speed regardless of the transport speed of the medium M, there is a risk of damaging the medium M, but the recording device 1A of this embodiment can suppress the risk of damaging the medium M by performing such control. The rotation direction of the wrinkle-smoothing roller 30 in the recording device 1A of this embodiment is the rotation direction C2.

In the recording device 1A of this embodiment, the transport unit 20 is configured to be able to transport the medium M intermittently by repeating a transport operation for transporting the medium M and a stop operation for stopping the transport of the medium M. When performing such intermittent transport, the control unit 40 can control the rotation of the anti-crease roller 30 so that the rotation speed of the anti-crease roller 30 at the time of the stop operation of the intermittent transport is slower than the rotation speed of the anti-crease roller 30 at the time of the transport operation. By controlling in this way by the control unit 40, it is possible to reduce friction between the anti-crease roller 30 and the medium M, and it is possible to particularly effectively suppress the risk of damage to the medium M. Note that slowing down the rotation speed of the anti-crease roller 30 at the time of the stop operation of the intermittent transport also includes stopping the rotation of the anti-crease roller 30, and in this embodiment, the rotation of the anti-crease roller 30 is stopped at the time of the stop operation of the intermittent transport.

The recording device 1A of this embodiment is also equipped with a motor 15, which is a drive source for moving the conveyor belt 5, and as described above, the brake roller 7 is a rotating roller that rotates due to the rotational force of the motor 15. As shown in FIG. 1, the anti-crease roller 30 has a rotating shaft 31, which is connected to the rotating shaft 71 of the brake roller 7 by the endless belt 12. In other words, the anti-crease roller 30 is connected to the brake roller 7 so as to rotate by rotating the brake roller 7. Therefore, the recording device 1A of this embodiment does not need to provide a new drive source for rotating the anti-crease roller 30 in addition to the motor 15, and the device configuration can be simplified and made smaller. Furthermore, even if the motor for driving the brake roller 7 is provided separately from the motor 15, the anti-wrinkle roller 30 and the brake roller 7 can be rotated by a single common motor, eliminating the need to provide a new drive source for rotating the anti-wrinkle roller 30, simplifying the device configuration and making the device more compact.

In addition, in the recording device 1A of this embodiment, as shown in FIG. 2, the wrinkle-smoothing rollers 30 are arranged side by side in the width direction B intersecting the transport direction, the first wrinkle-smoothing roller 30A and the second wrinkle-smoothing roller 30B. Wrinkles in the medium M are likely to occur at the ends of the medium M in the width direction B, but by providing the wrinkle-smoothing roller 30 only in the area corresponding to the ends of the medium M in the width direction B, as in the recording device 1A of this embodiment, it is possible to eliminate the need to extend the wrinkle-smoothing roller 30 in the width direction B to cover the entire width of the medium, and the wrinkle-smoothing roller 30 can be made smaller, which in turn makes it possible to make the device more compact.

In addition, in the recording device 1A of this embodiment, each of the first wrinkle-smoothing roller 30A and the second wrinkle-smoothing roller 30B is configured to be movable in the width direction B along the rotation axis 31. In this manner, it is preferable that at least one of the multiple wrinkle-smoothing rollers 30 is configured to be able to change its position in the width direction B. With this configuration, even when media M with different media widths are used, the position of the wrinkle-smoothing roller 30 in the width direction B can be changed according to the media width, and wrinkles in the media M can be suitably removed according to the media width.

In addition, as shown in FIG. 3, the recording device 1A of this embodiment has a spiral hook portion 33 on the surface 32 of the wrinkle-smoothing roller 30 that hooks onto the medium M when it comes into contact with the medium M. By using a wrinkle-smoothing roller 30 with such a configuration, wrinkles can be effectively removed. Note that FIG. 3 shows the first wrinkle-smoothing roller 30A of the wrinkle-smoothing rollers 30, but the second wrinkle-smoothing roller 30B has a similar configuration except that the spiral direction is reversed. In addition, each wrinkle-smoothing roller 30 has a hole portion 34 through which the rotating shaft 31 passes. The wrinkle-smoothing roller 30 of this embodiment is configured so that the hook portion 33 comes into contact with the medium M so as to hook onto it, and as the roller 30 rotates in the rotation direction C2, a force toward the end in the width direction B is applied from the hook portion 33 to the medium M, thereby smoothing out wrinkles.

In particular, in the crease-smoothing roller 30 of the recording device 1A of this embodiment, as shown in FIG. 4, the catch portion 33 has an overhang portion 331 that protrudes like an eave from the surface 32 so that it can be appropriately caught by the medium M when it comes into contact with the medium M. By using a crease-smoothing roller 30 with this configuration, wrinkles can be particularly effectively smoothed out.

[Example 2]
Next, the recording device 1B of the second embodiment will be described with reference to FIG. 5. FIG. 5 is a diagram corresponding to FIG. 1 showing the recording device 1A of the first embodiment. In FIG. 5, components common to the first embodiment are indicated by the same reference numerals, and detailed description will be omitted. Here, the recording device 1B of this embodiment has the same configuration as the recording device 1A of the first embodiment, except for the configuration of the parts described below. Therefore, the recording device 1B of this embodiment has the same characteristics as the recording device 1A of the first embodiment, except for the parts described below.

As described above, in the recording device 1A of the first embodiment, the head 101 also serves as a pretreatment liquid application unit. On the other hand, in the recording device 1B of the present embodiment, as shown in FIG. 5, a pretreatment liquid application unit 50 is provided between the pressure roller 6 and the head 101 as an ink ejection unit, which applies a shower of pretreatment liquid to the medium M prior to ejecting ink from the head 101 onto the medium M. For this reason, in the recording device 1B of the present embodiment, the head 101 does not have the nozzle rows R1 and R9 that eject the pretreatment liquid. In this way, by providing the pretreatment liquid application unit separately from the ink ejection unit, it is possible to prevent the pretreatment liquid from adhering to the nozzle rows that eject ink from the ink ejection unit.

As shown in FIG. 5, the recording device 1A of this embodiment has a configuration in which the wrinkle-smoothing roller 30 is not connected to the brake roller 7, and can rotate using a motor 13 other than the motor 15 as a drive source. As shown in FIG. 5, the recording device 1A of this embodiment also has a detection unit 51 that detects the state of wrinkles on the medium M. The detection unit 51 is provided at a position where it can detect the state of wrinkles at the end of the width direction B of the medium M. The control unit 40 can control the drive of the motor 13 and the rotation of the wrinkle-smoothing roller 30 according to the detection result of the detection unit 51. By controlling in this way, the control unit 40 can effectively suppress wrinkles by speeding up the rotation of the wrinkle-smoothing roller 30 in cases where there are large wrinkles, for example, and can effectively reduce friction between the wrinkle-smoothing roller 30 and the medium M in cases where there are no wrinkles or only small wrinkles, and can particularly effectively suppress the risk of damage to the medium M.

[Example 3]
Next, the recording device 1C of the third embodiment will be described with reference to FIG. 6. FIG. 6 corresponds to FIG. 1 showing the recording device 1A of the first embodiment. In FIG. 6, components common to the first and second embodiments are indicated by the same reference numerals, and detailed description will be omitted. Here, the recording device 1C of this embodiment has the same configuration as the recording device 1 of the first and second embodiments, except for the configuration of the parts described below. Therefore, the recording device 1C of this embodiment has the same characteristics as the recording device 1 of the first and second embodiments, except for the parts described below.

As described above, in the recording device 1A of the first embodiment, the head 101 also serves as the pretreatment liquid application unit. The recording device 1B of the second embodiment has a pretreatment liquid application unit 50 that applies the liquid in a shower-like manner. On the other hand, as shown in FIG. 6, the recording device 1C of the present embodiment has a roller-shaped pretreatment liquid application unit 52 between the pressure roller 6 and the head 101 as an ink ejection unit, which is connected to the pretreatment liquid storage unit 53 and applies the pretreatment liquid to the medium M prior to ejecting the ink from the head 101 onto the medium M. For this reason, in the recording device 1C of the present embodiment, as in the recording device 1B of the second embodiment, the head 101 does not have the nozzle rows R1 and R9 that eject the pretreatment liquid. In this way, there is no particular limitation on the configuration of the pretreatment liquid application unit. It is also possible to make the pretreatment liquid application unit roller-shaped so that the pretreatment liquid application unit plays the role of a pressure roller.

The present invention is not limited to the above examples, and various modifications are possible within the scope of the invention described in the claims, and it goes without saying that these are also included within the scope of the present invention.

1...recording device, 1A...recording device, 1B...recording device, 1C...recording device, 2...feed-out section, 3...driven roller, 4...driving roller, 5...conveyor belt, 5a...outer periphery, 6...pressurizing roller, 7...brake roller, 8...driven roller, 9...cleaning section, 10...cleaning roller, 11...blade section, 12...endless belt, 13...motor, 14...storage section, 15...motor (driving source), 18...driven roller, 20...conveyor section, 30...smoothing roller, 30A...first smoothing roller, 30B...second Straightening roller, 31...rotating shaft, 32...surface, 33...hook portion, 34...hole portion, 40...control portion, 50...pretreatment liquid application portion, 51...detection portion, 52...pretreatment liquid application portion, 53...pretreatment liquid storage portion, 71...rotating shaft, 100...carriage, 101...head (ink ejection portion, pretreatment liquid application portion), 331...overhang portion, M...medium, R1...nozzle row, R2...nozzle row, R3...nozzle row, R4...nozzle row, R5...nozzle row, R6...nozzle row, R7...nozzle row, R8...nozzle row, R9...nozzle row

Claims (8)

a medium conveying section having a conveying belt;
an ink ejection unit that ejects ink onto the medium;
a pretreatment liquid application unit that applies a pretreatment liquid to the medium prior to the ink being ejected from the ink ejection unit onto the medium;
a pressure roller that is disposed upstream of the pretreatment liquid application unit in a transport direction of the medium and presses the medium against the transport belt;
a wrinkle-smoothing roller disposed upstream of the pressure roller in the transport direction and configured to remove wrinkles from the medium;
A recording device comprising: 2. The recording apparatus according to claim 1,
A control unit is provided,
The recording apparatus according to claim 1, wherein the control unit controls rotation of the anti-crease roller based on a transport speed of the medium by the transport unit. 3. The recording apparatus according to claim 2,
the transport unit is configured to be capable of intermittently transporting the medium by repeating a transport operation of transporting the medium and a stopping operation of stopping the transport of the medium,
the control unit controls the rotation of the wrinkle-smoothing roller so that a rotation speed of the wrinkle-smoothing roller during the stopping operation of the intermittent transport is slower than a rotation speed of the wrinkle-smoothing roller during the transport operation. 2. The recording apparatus according to claim 1,
A control unit and a detection unit that detects a wrinkle state of the medium,
The control unit controls rotation of the wrinkle-smoothing roller in response to a detection result of the detection unit. 5. The recording apparatus according to claim 1,
a surface of the anti-crease roller having a spiral hook portion for hooking onto the medium; 5. The recording apparatus according to claim 1,
A brake roller is provided to apply tension to the medium.
13. A recording apparatus, comprising: a first roller for pressing the first anti-crease roller against the first brake roller; 5. The recording apparatus according to claim 1,
The recording apparatus is characterized in that a plurality of the anti-crease rollers are arranged side by side in a width direction intersecting with the transport direction. 8. The recording apparatus according to claim 7,
4. The recording apparatus according to claim 1, wherein at least one of the anti-crease rollers is configured so that its position in the width direction can be changed.

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