JP2006137126A - Inkjet recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inkjet recording device which permits easy change of a light source. <P>SOLUTION: The inkjet recording device 1 comprises recording heads 7a to 7d to discharge ultraviolet setting inks to a recording medium K, an irradiator 8 to irradiate the inks impacted on the surface of the recording medium K with light and a hinge portion 8d to support the irradiator 8. The hinge portion 8d supports the irradiator 8 rotatably around a straight line parallel with the surface of the recording medium K. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an inkjet recording apparatus that records an image on a recording medium.

  Conventionally, as an apparatus for recording an image even on a recording medium having poor ink absorbability, a photo-curing inkjet recording apparatus has been used. A photo-curable ink jet recording apparatus includes a recording head and an irradiation device above a recording medium. After the photo-curable ink is ejected from the recording head and landed on the surface of the recording medium, the irradiation apparatus Light is irradiated to fix the ink on the surface of the recording medium.

  In recent years, as such an ink jet recording apparatus, there is one in which an irradiation apparatus is disposed on a rail so as to be retractable from a recording medium (see, for example, Patent Document 1). According to this ink jet recording apparatus, even when a jam (abnormal conveyance) occurs in the recording medium, it is possible to prevent the recording medium from receiving heat and being deformed due to excessive light.

By the way, since the irradiation device is provided close to the recording medium, when the light source of the irradiation device is consumed, the light source is replaced after the irradiation device is removed from the support member.
JP 2004-114580 A

  However, when the light source is replaced after the irradiation device is removed from the support member, the recording is performed with the irradiation device when the irradiation device is attached again from the viewpoint of maintaining the quality of the output image and preventing jamming of the recording medium. Since it is necessary to accurately reproduce the distance from the medium, it takes time and effort.

  In addition, it is conceivable to replace the light source after the irradiation device is retracted from the recording medium in the same manner as in the above-mentioned Patent Document 1, but the irradiation device remains facing downward even after the retraction, and therefore workability at the time of replacement Is not good. In addition, from the viewpoint of securing a retracting area for the irradiation device, it is necessary to increase the mounting space for the inkjet recording device.

  The subject of this invention is providing the inkjet recording device which can replace | exchange light sources easily.

The invention according to claim 1 is an inkjet recording apparatus,
A recording head that ejects photocurable ink toward the recording medium;
An irradiation device for irradiating light on the ink landed on the surface of the recording medium;
A support member for supporting the irradiation device,
The support member rotatably supports the irradiation device with a straight line parallel to the surface of the recording medium as a rotation axis.

According to the first aspect of the present invention, since the straight line parallel to the surface of the recording medium is supported so as to be rotatable, the lower surface of the irradiation device can be obtained by rotating the irradiation device toward the side or upward. The space between the recording medium and the recording medium can be widened to secure a work area, and the light source can be exchanged. Therefore, since the light source can be exchanged in a state where it is directed to the side or upward without attaching or detaching the irradiation device, the light source can be easily exchanged as compared with the conventional case.
In addition, unlike the case where the irradiation apparatus is retracted from the recording medium, it is not necessary to secure a retracting area for the irradiation apparatus, so that the mounting space for the ink jet recording apparatus can be reduced accordingly.

The invention described in claim 2 is the ink jet recording apparatus according to claim 1,
The support member rotatably supports the irradiation device about a straight line parallel to the longitudinal direction of the irradiation device as a rotation axis.

  According to the second aspect of the present invention, the irradiation device rotates using a straight line parallel to the longitudinal direction as a rotation axis, and therefore, compared with a case where the irradiation device rotates using a straight line parallel to the short direction as a rotation axis. The passing distance on the outer peripheral side of the irradiation device is reduced. Therefore, the work area required for rotating the irradiation device can be reduced.

The invention described in claim 3 is the ink jet recording apparatus according to claim 1 or 2,
A transport device for transporting the recording medium;
A jam detection device for detecting a jam of a recording medium;
The support member is a biasing member that biases the irradiation device in a rotation direction;
A fixing member that fixes the irradiation device to face the recording medium,
The fixing member releases the irradiation device when a jam is detected by the jam detection device.

  According to the third aspect of the present invention, when the jam of the recording medium is detected, the fixing member releases the irradiation device. Therefore, the irradiation device is rotated by the urging member, and the distance between the lower surface of the irradiation device and the recording medium is increased. spread. Therefore, it is possible to prevent a partial area of the recording medium from being heated by the irradiation device and causing ignition or deformation of the recording medium.

Invention of Claim 4 is an inkjet recording device as described in any one of Claims 1-3,
A holding member that holds the irradiation device in a state of being rotated by a predetermined angle is provided.

  According to the fourth aspect of the invention, since the irradiation device is held in a state rotated by a predetermined angle, the light source can be replaced more easily than when the irradiation device remains in a rotatable state. be able to.

Invention of Claim 5 is an inkjet recording device as described in any one of Claims 1-4,
A first control device for controlling the irradiation device;
The first control device turns off the irradiation device when the irradiation device rotates from a state facing the recording medium.

  According to the fifth aspect of the present invention, since the light is turned off when the irradiation device rotates from the state facing the recording medium, it is possible to prevent the worker from being exposed to irradiation light such as ultraviolet rays and to waste power. Can be reduced.

Invention of Claim 6 is an inkjet recording device as described in any one of Claims 1-5,
A carriage that supports the recording head and the irradiation device and scans on a recording medium;
A second control device for controlling the carriage drive device;
The second control device is characterized in that energization of the driving device is interrupted when the irradiation device rotates from a state facing the recording medium.

  Here, when the energization to the carriage driving device is interrupted, the control mechanism for controlling the position of the carriage is not operated, so that the carriage can be freely moved.

  According to the sixth aspect of the present invention, when the irradiation device rotates from the state facing the recording medium, the energization to the drive device of the carriage is cut off, so that the carriage is moved in the scanning direction and the workability is good. Can be placed in position. Therefore, the light source can be replaced more easily.

The invention according to claim 7 is the ink jet recording apparatus according to any one of claims 1 to 6,
The recording head can rotate integrally with the irradiation device.

  According to the seventh aspect of the invention, since the recording head can be rotated integrally with the irradiation device, the maintenance of the recording head can be performed together with the replacement of the light source.

The invention according to claim 8 is the ink jet recording apparatus according to claim 7,
The support member is a carriage that supports the recording head and the irradiation device and scans on a recording medium.

  According to the eighth aspect of the invention, the same effect as that of the seventh aspect of the invention can be obtained.

The invention according to claim 9 is the ink jet recording apparatus according to claim 7 or 8,
A third control device for controlling the recording head;
The third control device is characterized in that the ejection of ink is stopped when the recording head rotates from a state facing the recording medium.

  According to the ninth aspect of the invention, since the ejection of ink is stopped when the recording head is rotated from the state facing the recording medium, it is possible to prevent contamination due to the scattering of ink and to waste ink and power. Can be reduced.

The invention according to claim 10 is the ink jet recording apparatus according to any one of claims 1 to 9,
The irradiation device has at least one of a high pressure mercury lamp, a low pressure mercury lamp, a metal halide lamp, a black light, a hot cathode tube, a cold cathode tube, an LED, an electrodeless lamp, and an excimer lamp as a light source. .

  According to the invention described in claim 10, the same effect as that of the invention described in any one of claims 1-9 can be obtained.

The invention according to claim 11 is the ink jet recording apparatus according to any one of claims 1 to 10,
The recording head ejects ink having a viscosity at 25 ° C. of 10 to 50 [mPa · s] and a surface tension of 20 to 40 [mN / m].

  According to the eleventh aspect of the present invention, it is possible to obtain the same effect as that of the first aspect of the present invention.

The invention according to claim 12 is the ink jet recording apparatus according to any one of claims 1 to 11,
The recording head discharges ink containing an ultraviolet curable compound.

  According to the twelfth aspect of the invention, the same effect as that of the first aspect of the invention can be obtained.

  According to the first aspect of the present invention, since the light source can be exchanged in a state of being directed to the side or upward without attaching or detaching the irradiation device, the light source can be easily exchanged as compared with the conventional case. .

  According to the second aspect of the present invention, the working area for rotating the irradiation apparatus can be reduced as well as the effect of the first aspect of the invention.

  According to the invention described in claim 3, not only the effect of the invention described in claim 1 or 2 can be obtained, but also a part of the area of the recording medium is heated by the irradiation device, and ignition and recording are performed. The deformation of the medium can be prevented.

  According to the invention described in claim 4, the light source can be replaced more easily, as well as the effect of the invention described in any one of claims 1-3.

  According to the invention described in claim 5, it is possible to obtain the effect of the invention described in any one of claims 1 to 4, and to prevent the worker from being exposed to irradiation light such as ultraviolet rays. And waste of electric power can be reduced.

  According to the invention described in claim 6, it is possible to easily replace the light source as well as to obtain the effect of the invention described in any one of claims 1 to 5.

According to the seventh aspect of the invention, it is possible to perform the maintenance of the recording head together with the replacement of the light source as well as the effect of the invention according to any one of the first to sixth aspects. .
According to the eighth aspect of the invention, the same effect as that of the seventh aspect of the invention can be obtained.

  According to the ninth aspect of the invention, not only can the effect of the seventh or eighth aspect of the invention be obtained, but also contamination due to ink scattering can be prevented, and waste of ink and power can be prevented. Can be reduced.

According to the invention described in claim 10, the same effect as that of the invention described in any one of claims 1-9 can be obtained.
According to the eleventh aspect of the present invention, it is possible to obtain the same effect as that of the first aspect of the present invention.
According to the twelfth aspect of the invention, the same effect as that of the first aspect of the invention can be obtained.

  Embodiments of the present invention will be described below with reference to the drawings. In the present embodiment, the inkjet recording apparatus 1 will be described as a serial head type apparatus.

  FIG. 1 is a plan view showing a schematic configuration of an ink jet recording apparatus 1 according to the present invention. As shown in this figure, the ink jet recording apparatus 1 includes rollers 2 and 2 as a conveying apparatus in the present invention.

  The rollers 2 and 2 are configured to transport the recording medium K in the transport direction X by intermittently rotating by a roller drive motor 2a (see FIG. 3). A platen 3 is disposed between the rollers 2 and 2 and supports the recording medium K conveyed between the rollers 2 and 2 from the back side.

  Above the platen 3, a guide member 4 extending in a direction substantially orthogonal to the transport direction X, that is, the scanning direction Y is disposed, and a carriage 5 is supported on the guide member 4.

  The carriage 5 can be reciprocated in the scanning direction Y on the recording medium K by driving of the carriage driving device 5a (see FIG. 3), and this movement is guided by the guide member 4. Four recording heads 7 a to 7 d are mounted on the carriage 5.

  The recording heads 7 a to 7 d eject ultraviolet curable ink from the nozzles on the lower surface toward the recording medium K when the carriage 5 moves in the scanning direction Y, and are arranged in the scanning direction Y. In the present embodiment, the recording heads 7a to 7d eject inks of process colors of yellow (Y), magenta (M), cyan (C), and black (K).

Further, irradiation devices 8 and 8 are disposed on both sides of the carriage 5.
As shown in FIG. 2A, the irradiating devices 8, 8 are internally provided with light sources 8a,... That irradiate ultraviolet rays toward the lower recording medium K. As the light source 8a, at least one of a high pressure mercury lamp, a low pressure mercury lamp, a metal halide lamp, a black light, a hot cathode tube, a cold cathode tube, an LED, an electrodeless lamp, an excimer lamp, or the like is used. In FIG. 2, only one of the two irradiation devices 8 and 8 is illustrated.

  In addition, the irradiation devices 8 and 8 are provided with engaging portions 8b projecting toward the carriage 5 on the side portions. A lock pin 8c extending in the transport direction X is provided at the tip of the engaging portion 8b.

  The irradiation device 8 is connected to the carriage 5 via a hinge portion 8d as a support member in the present invention, and is a straight line parallel to the longitudinal direction of the irradiation device 8, that is, the conveyance direction X, as shown in FIG. Can be rotated in the rotation direction Z about the rotation axis. The hinge portion 8d is provided on the intersection line between the upper surface of the irradiation device 8 and the side surface on the carriage 5 side in a state extending in the transport direction X. The hinge portion 8d is provided with a stopper (not shown) so that the irradiation device 8 is not rotated by a predetermined angle, in this embodiment, about 40 degrees or more. In addition, it is good also as adjusting the rotational speed of the irradiation apparatus 8 by using a rotary damper etc. as the hinge part 8d.

  The irradiation device 8 is connected to the upper portion of the carriage 5 on the upper surface by a tension spring 8e. The tension spring 8e is a biasing member in the present invention, and biases the irradiation device 8 in the rotation direction Z. Further, the tension spring 8e cooperates with the stopper of the hinge portion 8d and functions as a holding member in the present invention. The irradiation device 8 faces the recording medium K (hereinafter referred to as a steady position). 2 (see FIG. 2 (a)) and held at a position rotated by a predetermined angle (hereinafter referred to as a maintenance position; see FIG. 2 (b)).

  Between the irradiation devices 8 and 8 and the carriage 5, a jam detecting plate 6 is disposed as a jam detecting device in the present invention.

  The jam detection plate 6 is a substantially flat plate member connected to the carriage 5 via a rivet 6a. As shown in FIG. 2B, the jam detecting plate 6 contacts the recording medium K at the leading end 6b when the carriage 5 scans in a state where a jam has occurred in the recording medium K, and the rivet 6a is used as the rotation axis. It rotates in the rotation direction W. The rivet 6a is fixed to the side surface of the carriage 5 by a connecting member (not shown).

  The jam detecting plate 6 includes a hook portion 6c on the side opposite to the tip portion 6b. The hook portion 6c is a fixing member in the present invention, and engages with the lock pin 8c to fix the irradiation device 8 at the steady position.

  The jam detection plate 6 is provided with a micro switch 6d (see FIG. 3), and an electric signal is generated when the hook portion 6c opens the lock pin 8c.

  As shown in FIG. 3, a control device 9 is connected to the roller drive motor 2a, carriage drive device 5a, recording heads 7a to 7d, irradiation devices 8 and 8, and microswitch 6d.

  The control device 9 is the first to third control devices in the present invention, and includes a ROM (Read Only Memory), a RAM (Random Access Memory), and a CPU (Central Processing Unit) not shown. Here, the ROM stores various control programs relating to the operation of each unit of the inkjet recording apparatus 1. The RAM includes a work area for the CPU. The CPU expands a program designated from various programs stored in the ROM to a work area in the RAM, and roller driving motor 2a, carriage driving device 5a, recording heads 7a to 7d, and irradiation devices 8, 8 It is designed to control the operation.

Next, “ink” used in the present embodiment will be described.
As the ink used in the present embodiment, in particular, “photocuring system (Chapter 4)”, which is described in “Photocuring technology—selection of resin / initiator and blending conditions and measurement / evaluation of curing degree (technical association information)”. ) ”,“ Curing system using photoacid / base generator (Section 1) ”,“ Photo-induced alternating copolymerization (Section 2) ”, etc. It may be cured by.

  Specifically, the ink used in the present embodiment is an ultraviolet curable ink having a property of being cured by irradiation with ultraviolet rays as light, and a polymerizable compound (known polymerization) as an ultraviolet curable compound in the present invention. An organic compound), a photoinitiator, and a color material as main components. However, as the ink used in the present embodiment, the photoinitiator may be excluded when an ink that conforms to the above “light-induced alternating copolymerization (section 2)” is used.

  The above-mentioned photocurable ink is roughly classified into a radical polymerization type ink containing a radical polymerizable compound and a cationic polymerization type ink containing a cationic polymerizable compound as the polymerizable compound. As the ink used in the present embodiment, a hybrid ink in which a radical polymerization ink and a cation polymerization ink are combined may be used as the ink used in the present embodiment. However, a cationic polymerization ink is particularly used in the present embodiment because a cationic polymerization ink with little or no inhibition of polymerization reaction by oxygen is superior in functionality and versatility.

  The cationic polymerization ink used in the present embodiment is specifically a mixture containing at least a cationically polymerizable compound such as an oxetane compound, an epoxy compound, and a vinyl ether compound, a photocationic initiator, and a coloring material. As described above, it has the property of being cured by irradiation with ultraviolet rays.

  This ink has a viscosity at 25 ° C. of 10 to 50 [mPa · s] and a surface tension of 20 to 40 [mN / m].

Next, the “recording medium K” used in the present embodiment will be described.
The recording medium K used in the present embodiment is made of various papers such as plain paper, recycled paper, glossy paper, etc., various fabrics, various non-woven fabrics, resin, metal, glass and the like applied to a normal ink jet recording apparatus. A recording medium is applicable. As the form of the recording medium K, a roll shape, a cut sheet shape, a plate shape, or the like is applicable. In this embodiment, as the recording medium K, a long resin film wound in a roll shape is used.

  In particular, as the recording medium K used in the present embodiment, a transparent or opaque non-absorbent resin film used for so-called soft packaging can be applied. Specific resin types of resin film include polyethylene terephthalate, polyester, polyolefin, polyamide, polyesteramide, polyether, polyimide, polyamideimide, polystyrene, polycarbonate, poly-ρ-phenylene sulfide, polyether ester, polyvinyl chloride , Poly (meth) acrylic acid ester, polyethylene, polypropylene, nylon and the like are applicable, and further, copolymers of these resins, mixtures of these resins, and those obtained by crosslinking these resins are also applicable. Above all, as the type of resin of the resin film, one of stretched polyethylene terephthalate, polystyrene, polypropylene, and nylon is selected because of the transparency, dimensional stability, rigidity, environmental load, cost, etc. of the resin film. It is preferable to use a resin film having a thickness of 2 to 100 μm (preferably 6 to 50 μm). Moreover, you may perform surface treatments, such as a corona discharge process and an easily bonding process, on the surface of the support body of resin films.

  Further, as the recording medium K used in the present embodiment, known opaque recording media such as various papers whose surfaces are coated with a resin, a film containing a pigment, and a foamed film are also applicable.

Next, the operation of the inkjet recording apparatus 1 during image recording will be described.
First, in a state where conveyance of the recording medium K by the rollers 2 and 2 is stopped, the carriage 5 scans immediately above the recording medium K to one side in the scanning direction Y. As a result, the recording heads 7a to 7d and the irradiation devices 8 and 8 scan following the carriage 5, and images are recorded during the scanning. Specifically, first, the recording heads 7a to 7d discharge ink, and the irradiation device 8 on the rear side, that is, the other side of the recording heads 7a to 7d irradiates the ink on the surface of the recording medium with ultraviolet rays. As a result, the ink ejected from each of the recording heads 7 a to 7 d is immediately cured by the ultraviolet rays after landing on the recording medium K, and is fixed on the surface of the recording medium K.
Next, the rollers 2 and 2 convey the recording medium K along the conveyance direction X.

Next, in a state where the conveyance of the recording medium K by the rollers 2 and 2 is stopped, the carriage 5 scans immediately above the recording medium K in the scanning direction, and at the time of this scanning, the recording heads 7a to 7d and the irradiation device 8 are scanned. , 8 record an image.
Next, the rollers 2 and 2 convey the recording medium K along the conveyance direction X.

  Thereafter, the inkjet recording apparatus 1 repeats the above operations, and a desired image composed of a plurality of dots of each process color is sequentially recorded on the surface of the recording medium K.

  Next, the operation of the inkjet recording apparatus 1 when a jam occurs in the recording medium K will be described.

  First, as shown in FIGS. 2A and 2B, when a jam occurs in the recording medium K, the leading end 6 b of the jam detecting plate 6 comes into contact with the recording medium K. When the carriage 5 scans in this state, the jam detecting plate 6 rotates in the rotation direction W around the rivet 6a, and as a result, the hook portion 6c releases the lock pin 8c.

  When the lock pin 8c is released, the tension spring 8e contracts to rotate the irradiation device 8 in the rotation direction Z. Thereby, the space | interval of the lower surface of the irradiation apparatus 8 and the recording medium K spreads, and the working area for replacing | exchanging the light source 8a is ensured. And since the said stopper of the hinge part 8d stops the irradiation apparatus 8 in the said maintenance position, the irradiation apparatus 8 is hold | maintained in the state which faced the side. Here, since the irradiation device 8 rotates around the hinge portion 8d parallel to the longitudinal direction, the outer periphery of the irradiation device 8 during rotation is compared with a case where the irradiation device 8 rotates around the rotation axis parallel to the short direction. As a result, the working distance required for rotating the irradiation device 8 is reduced.

  When the lock pin 8c is released, the microswitch 6d generates an electrical signal, and the control device 9 that detects this electrical signal turns off the irradiation device 8 and causes the recording heads 7a to 7d to stop ejecting ink. In addition, the power supply to the carriage driving device 5a is cut off. In this way, since the light is turned off when the irradiation device 8 rotates from the steady position, it is possible to prevent the worker from being exposed to ultraviolet rays and to reduce waste of electric power. Further, since the ink ejection is stopped, contamination due to ink scattering is prevented, and waste of ink and power is reduced. Further, since the power supply to the carriage driving device 5a is interrupted, the carriage 5 can be moved in the scanning direction Y. At this time, the control device 9 may stop the roller drive motor 2a.

  According to the ink jet recording apparatus 1 described above, the light source 8a can be exchanged in a state of being directed sideways or upward without attaching or detaching the irradiation apparatus 8, and therefore, the light source 8a can be easily exchanged as compared with the conventional case. be able to.

  Further, since the irradiation device 8 is held in a state rotated by a predetermined angle, the light source 8a can be replaced more easily than in the case where the irradiation device 8 remains in a rotatable state.

  When the irradiation device 8 rotates from the steady position, the carriage 5 can be moved in the scanning direction Y and disposed at a position with good workability, so that the light source 8a can be replaced more easily. .

  Further, when a jam occurs in the recording medium K, the gap between the lower surface of the irradiation device 8 and the recording medium K can be increased, so that a part of the recording medium K is heated by the irradiation device 8, Firing and deformation of the recording medium K can be prevented.

  Further, unlike the case where the irradiation device 8 is retracted from above the recording medium K, it is not necessary to secure a retracting area for the irradiation device 8, so that the mounting space for the inkjet recording device 1 can be reduced accordingly.

  In the above embodiment, the hinge portion 8d has been described as being parallel to the longitudinal direction of the irradiation device 8. However, if the hinge portion 8d is parallel to the surface of the recording medium K, for example, in the short direction of the irradiation device 8. It may be parallel.

  Moreover, although the said stopper of the hinge part 8d was demonstrated as preventing the irradiation apparatus 8 from rotating about 40 degree | times or more, this angle may be smaller than 40 degree | times and may be large.

  Moreover, although demonstrated as urging | biasing the irradiation apparatus 8 to the rotation direction Z with the tension spring 8e, it is good also as urging | biasing the irradiation apparatus 8 with another elastic member, for example, a gas damper.

  Further, the support member in the present invention has been described as being the hinge portion 8d, but it may be a carriage 5A in which the carriage body 52 and the carriage base 50 are connected by the hinge portion 51 as shown in FIG. In this case, since the recording heads 7a to 7d and the irradiation device 8 can be rotated integrally around the hinge portion 51, the recording heads 7a to 7d can be maintained together with the replacement of the light source 8a.

  Furthermore, although the inkjet recording apparatus 1 has been described as being a serial head type, it may be a line head type.

1 is a plan view showing a schematic configuration of an ink jet recording apparatus according to the present invention. It is a diagram for explaining the operation of the ink jet recording apparatus when a jam occurs. 1 is a block diagram showing a schematic configuration of an ink jet recording apparatus according to the present invention. It is a figure which shows the modification of the inkjet recording device which concerns on this invention.

Explanation of symbols

1 Inkjet recording apparatus 5 Carriage 5A Carriage (supporting member)
5a Carriage drive device 6 Jam detection plate (jam detection device)
6c Hook part (fixing member)
7a to 7d Recording head 8 Irradiation device 8a Light source 8d Hinge (supporting member)
8e Tension spring (biasing member, holding member)
9 Control device (first to third control devices)
K recording medium

Claims (12)

A recording head that ejects photocurable ink toward the recording medium;
An irradiation device for irradiating light on the ink landed on the surface of the recording medium;
A support member for supporting the irradiation device,
The inkjet recording apparatus, wherein the support member rotatably supports the irradiation device with a straight line parallel to the surface of the recording medium as a rotation axis. The inkjet recording apparatus according to claim 1, wherein
The ink jet recording apparatus, wherein the support member rotatably supports the irradiation device about a straight line parallel to the longitudinal direction of the irradiation device. The inkjet recording apparatus according to claim 1 or 2,
A transport device for transporting the recording medium;
A jam detection device for detecting a jam of a recording medium;
The support member is a biasing member that biases the irradiation device in a rotation direction;
A fixing member that fixes the irradiation device to face the recording medium,
The inkjet recording apparatus, wherein the fixing member releases the irradiation device when a jam is detected by the jam detection device. In the ink jet recording apparatus according to any one of claims 1 to 3,
An ink jet recording apparatus comprising: a holding member that holds the irradiation device in a state rotated by a predetermined angle. In the ink jet recording apparatus according to any one of claims 1 to 4,
A first control device for controlling the irradiation device;
The first control device turns off the irradiation device when the irradiation device rotates from a state of facing the recording medium. In the ink jet recording apparatus according to any one of claims 1 to 5,
A carriage that supports the recording head and the irradiation device and scans on a recording medium;
A second control device for controlling the carriage drive device;
The second control device cuts off power to the driving device when the irradiation device rotates from a state of facing the recording medium. In the ink jet recording apparatus according to any one of claims 1 to 6,
An ink jet recording apparatus, wherein the recording head is rotatable integrally with the irradiation device. The inkjet recording apparatus according to claim 7, wherein
The inkjet recording apparatus, wherein the support member is a carriage that supports the recording head and the irradiation device and scans on a recording medium. The ink jet recording apparatus according to claim 7 or 8,
A third control device for controlling the recording head;
The third control device stops ink ejection when the recording head rotates from a state facing the recording medium. In the ink jet recording apparatus according to any one of claims 1 to 9,
The irradiation device has at least one of a high pressure mercury lamp, a low pressure mercury lamp, a metal halide lamp, a black light, a hot cathode tube, a cold cathode tube, an LED, an electrodeless lamp, and an excimer lamp as a light source. Inkjet recording device. In the ink jet recording apparatus according to any one of claims 1 to 10,
The ink jet recording apparatus, wherein the recording head ejects ink having a viscosity at 25 ° C. of 10 to 50 [mPa · s] and a surface tension of 20 to 40 [mN / m]. In the ink jet recording apparatus according to any one of claims 1 to 11,
The ink jet recording apparatus, wherein the recording head ejects ink containing an ultraviolet curable compound.

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