JP2004351761A - Ink-jet printer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ink-jet printer which can form high-definition images to textiles. <P>SOLUTION: The ink-jet printer 1 forms the image by discharging an ultraviolet curing ink by ink-jet system recording heads 5, 6, 7 and 8 onto a recording medium 99, and then hardens and fixes the ink impacting on the recording medium by irradiating ultraviolet rays from ultraviolet irradiation devices 9 and 10. The recording medium is the textile, and the ink includes a pigment. A control part 50 is set which controls a minimum liquid droplet amount of the ink discharged from each nozzle of the recording heads to be 2-10 pl per discharge, and a printing resolution on the recording medium to be 600 dpi or higher. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an inkjet printer, and more particularly, to an inkjet printer for forming an image on a fabric.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as an apparatus for forming an image on a textile, there is an ink jet printing apparatus that discharges a dye from an ink jet recording head to the textile to perform printing on the textile (for example, see Patent Document 1).
[0003]
However, since the inkjet printing apparatus forms an image by printing using a dye, a high-definition image cannot be formed. Further, in printing using a dye, a pre-treatment is necessary for the fabric forming an image, and a post-treatment such as heating after printing is also required, which is very troublesome. Furthermore, the fabric that can be printed by the inkjet printing apparatus is limited to a specific type, and there is a problem that the ink used must be changed for each type.
[0004]
On the other hand, an ink jet printer that forms an image on a woven fabric using an ultraviolet curable ink has also been proposed (for example, see Patent Document 2). In an ink jet printer using this ultraviolet curable ink, unlike the ink jet printing apparatus, the ink is cured by irradiation with ultraviolet light, so that an image can be formed on various fabrics. There is an advantage that it is not necessary to change. Further, there is an advantage that an image can be formed on a woven fabric in a small number of steps without performing pre-treatment or post-treatment on the woven fabric.
[0005]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 8-311782 [Patent Document 2]
JP 2003-508277 A
[Problems to be solved by the invention]
However, a conventional inkjet printer that forms an image on a fabric using the above-described ultraviolet curable ink is for performing pattern printing on a fabric used for quilting, and forms a high-definition image. That was impossible.
[0007]
Therefore, an object of the present invention is to provide an ink jet printer capable of forming a high-definition image on a fabric.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 is
An ink jet recording head ejects an ultraviolet curable ink onto a recording medium to form an image, and then irradiates ultraviolet rays from an ultraviolet irradiation device to cure and fix the ink that has landed on the recording medium. A printer,
The recording medium is a woven fabric,
The ink contains a pigment,
The minimum amount of ink ejected from each nozzle of the recording head is controlled to be 2 pl to 10 pl per ejection,
It is characterized by including a control unit for controlling the printing resolution on the recording medium to be 600 dpi or more.
[0009]
According to the first aspect of the present invention, it is possible to form an image on various fabrics, there is no need to change the ink for each type of fabric, and the fabric is reduced in steps without performing pre-processing and post-processing. In addition to the advantage of using an ultraviolet curable ink that an image can be formed, since the ink contains a pigment, the fabric after image formation can have high weather resistance. Since the minimum amount of ink ejected from the nozzles is as small as 2 pl to 10 pl per ejection, an image can be formed while suppressing the deterioration of the texture of the fabric, and the printing resolution is 600 dpi or more. Therefore, an effect that a high-definition image can be formed can be obtained.
[0010]
The invention according to claim 2 is the ink jet printer according to claim 1,
Within one second after the ink discharged from the recording head lands on the recording medium, the ink is irradiated with ultraviolet rays from the ultraviolet irradiation device.
[0011]
According to the invention as set forth in claim 2, since the ink ejected from the recording head is irradiated with ultraviolet rays from the ultraviolet irradiation device at a timing as fast as 1 second after the ink lands on the recording medium, Can be cured quickly and sufficiently, and, despite the fact that the recording medium is a fragile material such as a woven fabric, it is possible to prevent bleeding and form a good image.
[0012]
The invention according to claim 3 is the inkjet printer according to claim 1 or 2,
The ultraviolet curable ink is a cationic polymerization ink.
[0013]
According to the third aspect of the present invention, since the ultraviolet curable ink used for forming an image is a cationic polymerization ink containing a highly reactive cationic polymerizable compound, the illuminance of ultraviolet light is relatively low. Even if it is present, the curing reaction proceeds promptly to sufficiently cure, and it is possible to suppress a decrease in image quality. At the same time, there is also an effect that the odor of the ink is small and the fixability to the fabric is good.
[0014]
The invention according to claim 4 is the inkjet printer according to any one of claims 1 to 3,
It is a serial printer.
[0015]
According to the fourth aspect of the present invention, a higher effect can be obtained by applying the configuration of the present invention to a serial printer.
[0016]
The invention according to claim 5 is an inkjet printer according to any one of claims 1 to 3,
It is characterized by being a line printer.
[0017]
According to the fifth aspect of the present invention, a higher effect can be obtained by applying the configuration of the present invention to a line printer.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an inkjet printer according to an embodiment of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated example.
[0019]
FIG. 1 is a perspective view showing a schematic configuration of the inkjet printer 1, and FIG. 2 is a block diagram showing a schematic control configuration of the inkjet printer 1.
[0020]
As shown in FIG. 1, the ink jet printer 1 is a serial ink jet printer, and has a flat platen 2 that supports a non-recording surface opposite to a recording surface of a recording medium 99 made of a fabric. Before and after, transport rollers 3a and 3b as a transport mechanism are disposed, respectively. The transport rollers 3a and 3b rotate in a predetermined direction around the axis before and after the platen 2, respectively, and the recording medium 99 is transported in the transport direction A with the rotation of the transport rollers 3a and 3b. It has become so.
[0021]
As the recording medium 99 made of the above-described woven fabric, various woven fabrics made of cellulose fibers such as cotton, hemp, rayon, and tencel, protein fibers such as silk and wool, polyester, and nylon can be used. As a form of the recording medium 99, a roll shape, a cut sheet shape, a plate shape, or the like can be applied. In this embodiment, a long woven fabric wound in a roll shape is used as the recording medium 99.
[0022]
Above the platen 2, an image recording unit 4 for recording an image on the recording surface of the recording medium 99 is provided. The image recording unit 4 has a guide member 12 extending in a direction perpendicular to the transport direction A (hereinafter, referred to as “scanning direction B”), and the guide member 12 supports a carriage 11. The carriage 11 is reciprocally movable in the scanning direction B while being guided by the guide member 12.
[0023]
The carriage 11 directs the ultraviolet curable ink of each process color of yellow (Y), magenta (M), cyan (C), and black (K) to which a pigment is added as a colorant toward the recording surface of the recording medium 99. And four recording heads 5, 6, 7, and 8, which respectively eject the recording heads. The four recording heads 5, 6, 7, and 8 can be simultaneously moved by the reciprocating movement of the carriage 11. A plurality of nozzles (not shown) for ejecting ink as droplets are provided below each of the recording heads 5, 6, 7, and 8, and 2 pl to 10 pl per ejection from each nozzle. The ink is ejected. The minimum amount of droplets ejected from each nozzle per ejection is 2 pl to 10 pl, and a larger amount of droplets may be ejected.
[0024]
The plurality of nozzles are arranged along the transport direction A of the recording medium 99 for each of the recording heads 5, 6, 7, and 8 to form a nozzle surface (not shown). In this embodiment, the printing resolution of the ink ejected from the nozzle surface onto the recording medium is a high resolution of 600 dpi or more. The printing resolution is not fixed to, for example, 600 dpi, but it is more preferable that the printing resolution can be switched to, for example, any of 600 dpi, 1200 dpi, and 2400 dpi.
[0025]
Further, two ultraviolet irradiators 9 and 10 for irradiating ultraviolet rays are mounted on both right and left sides of the carriage 11, respectively. The ultraviolet irradiators 9 and 10 are also mounted on the carriage 11 similarly to the recording heads 5, 6, 7, and 8. Can be moved by the reciprocating movement of. Each of the ultraviolet irradiation devices 9 and 10 is provided with an ultraviolet light source 9a and 10a (shown in FIG. 2), respectively. The ultraviolet irradiation devices 9 and 10 are turned on by the ultraviolet light sources 9a and 10a, respectively. UV light can be directed toward the recording surface of each. As the ultraviolet light source, a high-pressure mercury lamp, a metal halide lamp, a black light, a cold cathode tube, an LED (Light Emitting Diode), or the like is applied.
[0026]
In the present embodiment, the ink ejection speed, the carriage moving speed, and the like are adjusted so that the ultraviolet curable ink ejected from the recording heads 5, 6, 7, and 8 lands on the recording medium 99 once. Within a second, the ink is irradiated with ultraviolet rays from the ultraviolet irradiation device 9 or the ultraviolet irradiation device 10.
As specific examples of the ultraviolet irradiation devices 9 and 10, the ultraviolet light sources 9a and 10a are fluorescent lamps (special product manufactured by Nippo Electric Co., power consumption less than 1 kW / hour), and the irradiation method is a linear light source from both right and left ends of the carriage 11. Irradiation, irradiation timing is 0.1 seconds after ink landing, the maximum illuminance is 8.0 mW / cm ² , and the irradiation energy is mJ / cm ² .
[0027]
Here, the “ultraviolet curable ink” used in the present embodiment will be described.
As the ink used in the present embodiment, in particular, the “photo-curing technology (selection of resin / initiator and measurement / evaluation of blending conditions and curing degree- (Technical Society information)”) described in “Photo-curing System (No. Ink applicable to “Curing system using photoacid / base generator (Chapter 4)”, “Photoinduced alternating copolymerization (Chapter 2)”, etc. It may be cured by radical polymerization.
[0028]
Specifically, the ink used in the present embodiment is an ultraviolet-curable ink having a property of being cured by being irradiated with ultraviolet light, and as a main component, a polymerizable compound (including a known polymerizable compound. ), A photoinitiator, and a colorant. However, when the ink used in the present embodiment is an ink conforming to the “light-induced alternating copolymerization (Second Section)”, the photoinitiator may be omitted.
[0029]
The ultraviolet curable ink is roughly classified into a radical polymerizable ink containing a radical polymerizable compound and a cationic polymerizable ink containing a cationic polymerizable compound as a polymerizable compound. Each of the inks can be applied as an ink used in the embodiment, and a hybrid ink in which a radical polymerization ink and a cation polymerization ink are combined may be applied as the ink used in the present embodiment. In this embodiment, a cationic polymerization ink is used.
[0030]
As described above, in the present embodiment, a pigment is used as the colorant. Examples of the pigment include various chromatic organic pigments such as phthalocyanine-based, azo-based, quinacridone-based, dioxazine-based, and diketopyrrolopyrrole-based pigments, and inorganic pigments such as carbon black, titanium white, silica, mica, and zinc oxide. Is mentioned.
[0031]
When a pigment is used as the colorant, it is preferable to use an aqueous pigment dispersion in which the pigment is uniformly dispersed in an aqueous medium, and to mix it with the aqueous photocurable resin composition. As the aqueous pigment dispersion, it is particularly preferable to use an aqueous pigment dispersion in which a pigment is stably dispersed in water by an anionic functional group. For example, a nonionic or anionic stable aqueous gravure ink, an aqueous pigment dispersion for a writing instrument, a conventionally known pigment dispersion for an inkjet ink, or the like can be applied as it is.
[0032]
Pigment dispersions having an anionic dissociating group and dispersed using an alkali-soluble water-soluble polymer are disclosed, for example, in JP-A-5-247392 and JP-A-8-143802. A pigment dispersion dispersed by a surfactant having an anionic dissociating group is disclosed in JP-A-8-209048. Examples of pigment dispersions which are encapsulated by a polymer and dispersed by providing an anionic dissociating group on the surface thereof include JP-A-10-140065, JP-A-9-316353, and JP-A-9-151342. And Japanese Patent Application Laid-Open Nos. 9-104834 and 9-31360. Further, pigment dispersions in which a pigment is dispersed by bonding an anionic dissociating group to a pigment surface by a chemical reaction are disclosed in US Pat. Nos. 5,837,045 and 5,851,280. There are such dispersions.
[0033]
In particular, as a basic element of a pigment dispersion that can be suitably used for an ink jet recording ink, the pigment is dispersed in an aqueous medium, and the particle size distribution of the dispersion is in the range of 25 nm to 350 nm in average particle diameter. Yes, it is necessary that the viscosity of the final ink can be adjusted to a range that does not affect the ejection, and further, it is necessary that the compatibility with the compound, which is essential for making the ink ultraviolet curable, is satisfied. .
[0034]
Specific examples of the ink used in the present embodiment include an ink composition set shown in the table of FIG.
The details of each abbreviation described in the table are as follows.
K: black ink C: cyan ink M: magenta ink Y: yellow ink W: white ink coloring material 1: C.I. I. pigment Black-7
Coloring material 2: C.I. I. pigment Blue-15: 3
Coloring material 3: C.I. I. pigment Red-57: 1
Coloring material 4: C.I. I. pigment Yellow-13
Coloring material 5: titanium oxide (anatase type average particle size 0.20 μm)
SY Glister: Sakamoto Yakuhin Kogyo Co., Ltd. [0035]
In addition, the exemplary compound A described in the table is a polymerizable compound represented by the chemical formula in FIG.
Further, the exemplified compound TX described in the table is a photopolymerization initiator (constituting the aqueous photocurable resin composition) represented by the chemical formula in FIG. Note that R ₂ in the chemical formula represents — (CH ₂ ) _x — (x = 0 or 1), —O— (CH ₂ ) _y — (y = 1 or 2), and a substituted or unsubstituted phenylene group. When R ₂ is a phenylene group, at least one of the hydrogen atoms in the benzene ring is, for example, a carboxyl group or a salt thereof, a sulfonic acid or a salt thereof, a linear or branched chain having 1 to 4 carbon atoms. Even when substituted with one or more groups or atoms selected from an alkyl group, a halogen atom (fluorine, chlorine, bromine and the like), an alkoxyl group having 1 to 4 carbon atoms, an aryloxy group such as a phenoxy group, and the like. Good. M represents a hydrogen atom or an alkali metal (for example, Li, Na, K, etc.). Further, R ₃ and R ₄ each independently represent a hydrogen atom or a substituted or unsubstituted alkyl group. Here, examples of the alkyl group include, for example, a linear or branched alkyl group having about 1 to 10 carbon atoms, particularly about 1 to 3 carbon atoms. Examples of the substituent of these alkyl groups include, for example, a halogen atom (such as a fluorine atom, a chlorine atom, and an oxidized atom), a hydroxyl group, and an alkoxyl group (having about 1 to 3 carbon atoms).
Thioxanthone substituted with these hydrophilic atomic groups is water-soluble, has co-solubility with an anionic aqueous pigment dispersion, and has little influence on the absorption of the organic pigment itself, so as a highly sensitive catalyst in a pigment-based composition. Works.
[0036]
Next, a control unit in the inkjet printer 1 will be described with reference to FIG. FIG. 2 is a block diagram showing a schematic control configuration of the ink jet printer 1.
[0037]
As shown in FIG. 2, the inkjet printer 1 is provided with a control unit 50 for controlling each drive unit. The control unit 50 includes a drive source 3 for the transport device, recording heads 5, 6, 7, and 8; ultraviolet light sources 9a and 10a for the ultraviolet irradiation devices 9 and 10; a carriage drive source 11a for the carriage 11; A storage unit 51 for storing important information, an input unit 52 for inputting an instruction at the time of image formation such as the type of the recording medium 99, and the like are electrically connected. In addition, other than these, each drive unit of the inkjet printer 1 is connected to the control unit 50.
[0038]
With such a configuration, the control unit 50 controls various devices in accordance with a control program and control data written in the storage unit 51 based on an instruction from the input unit 52.
[0039]
In particular, the control unit 50 adjusts the pressure in the recording heads 5, 6, 7, and 8 to reduce the minimum droplet amount of ink ejected from each nozzle of the recording heads 5, 6, 7, and 8. The control is performed such that the discharge is 2 pl to 10 pl per discharge.
Further, the printing speed on the recording medium 99 is controlled to be 600 dpi or more by adjusting the moving speed of the carriage 11, the ink ejection timing, and the like.
Further, by controlling the ink ejection speed, the carriage moving speed, and the like, control is performed such that ultraviolet rays are irradiated from the ultraviolet irradiation devices 9 and 10 to the ink landing portions within one second after the ink has landed on the recording medium 99. ing.
[0040]
Next, the operation of the inkjet printer 1 according to the present embodiment will be described.
First, when an instruction at the time of image formation such as the type of the recording medium 99 in the inkjet printer 1 is input from the input unit 52, the control unit 50 extracts information necessary for the image formation from the storage unit 51, and The image forming operation is performed.
[0041]
During the image forming operation of the inkjet printer 1, on the other hand, each of the transport rollers 3 a and 3 b operates and rotates, and the recording medium 99 is transported from back to front while the non-recording surface is supported by the platen 2. It is transported along the direction A. On the other hand, the carriage 11 operates to reciprocate just above the recording medium 99 along the scanning direction B, and the four recording heads 5, 6, 7, 8 and the two ultraviolet irradiation devices 9 mounted on the carriage 11 , 10 are also moved by the reciprocating movement of the carriage 11.
[0042]
While the carriage 11 is moving, the four recording heads 5, 6, 7, 8 eject ink from each nozzle toward the recording surface of the recording medium 99, and the two ultraviolet irradiation devices 9, 10 Ultraviolet rays are irradiated to the recording surface of the recording medium 99. In particular, while the carriage 11 is moving from left to right in FIG. 1, the ultraviolet light source 9a of the ultraviolet irradiation device 9 on the left is turned on, and the carriage 11 moves from right to left in FIG. During this operation, the ultraviolet light source 10a of the ultraviolet irradiation device 10 is turned on. That is, the ultraviolet light source 9a of the ultraviolet irradiation device 9 or the ultraviolet light source 10a of the ultraviolet irradiation device 10 on the downstream side of the recording heads 5, 6, 7, and 8 in the moving direction of the carriage 11 is turned on to emit ultraviolet light.
[0043]
Further, by controlling the pressure in the recording heads 5, 6, 7, 8 under the control of the control unit 50, the moving speed of the carriage 11, the ejection timing of the ink, and the like, the recording heads 5, 6, 7, 8 The minimum amount of ink ejected from the nozzle is 2 pl to 10 pl per ejection, and the printing resolution on the recording medium is 600 dpi or more.
Further, under the control of the control unit 50, the ink ejection speed, the carriage moving speed, and the like are adjusted, and the ultraviolet irradiation devices 9 and 10 apply ultraviolet light to the spot within one second after the ink lands on the recording medium 99. Irradiation. As a result, the ink ejected from each of the recording heads 5, 6, 7, and 8 is irradiated with ultraviolet rays immediately after landing on the recording medium 99, is immediately cured, and is fixed on the recording surface of the recording medium 99.
[0044]
Thereafter, the ink jet printer 1 repeats the above operations, and a desired image composed of a plurality of dots of each process color is sequentially recorded on the recording surface of the recording medium 99. Thereafter, the recording medium 99 is transported by the transport device and is discharged to a discharge tray (not shown).
[0045]
Although the present embodiment has been described using a serial type inkjet printer, the present invention is not limited to this. For example, the present invention can be applied to a line type inkjet printer.
[0046]
As described above, according to the inkjet printer of the present embodiment, it is possible to form an image on various fabrics, it is not necessary to change the ink for each type of fabric, and to perform pre-processing and post-processing. In addition to the advantage of using an ultraviolet-curable ink that can form an image on a fabric in a small number of steps, the fabric after image formation has high weather resistance because the ink contains a pigment. Since the minimum amount of ink discharged from the nozzle is a small droplet of 2 pl to 10 pl per discharge, it is possible to form an image while suppressing the deterioration of the texture of the fabric, Since the printing resolution is 600 dpi or more, an effect that a high-definition image can be formed can be obtained.
[0047]
Further, in the present embodiment, the ultraviolet light is irradiated from the ultraviolet irradiation device to the ink at a timing as fast as one second or less after the ink ejected from the recording head lands on the recording medium. It is possible to sufficiently cure and, even though the recording medium is a material that is easily bleeding, such as a fabric, it is possible to prevent bleeding and form a good image.
[0048]
Furthermore, in the present embodiment, since the ultraviolet curable ink used for forming an image is a cationic polymerization ink containing a highly reactive cationic polymerizable compound, even if the illuminance of ultraviolet rays is relatively low, The curing reaction proceeds promptly to cure sufficiently, and it is possible to suppress a decrease in image quality. At the same time, there is also an effect that the odor of the ink is small and the fixability to the fabric is good.
[0049]
Further, in the present embodiment, a higher effect can be obtained by applying the configuration of the present invention to a serial printer.
[0050]
Further, even when the configuration of the present invention is applied to a line printer, higher effects can be obtained.
[0051]
The present invention is not limited to the above embodiments, and various improvements and design changes may be made without departing from the spirit of the present invention.
[0052]
【The invention's effect】
According to the first aspect of the present invention, it is possible to form an image on various fabrics, there is no need to change the ink for each type of fabric, and the fabric is reduced in steps without performing pre-processing and post-processing. In addition to the advantage of using an ultraviolet curable ink that an image can be formed, since the ink contains a pigment, the fabric after image formation can have high weather resistance. Since the minimum amount of ink ejected from the nozzles is as small as 2 pl to 10 pl per ejection, an image can be formed while suppressing the deterioration of the texture of the fabric, and the printing resolution is 600 dpi or more. Therefore, an effect that a high-definition image can be formed can be obtained.
[0053]
According to the invention as set forth in claim 2, since the ink ejected from the recording head is irradiated with ultraviolet rays from the ultraviolet irradiation device at a timing as fast as 1 second after the ink lands on the recording medium, Can be cured quickly and sufficiently, and, despite the fact that the recording medium is a fragile material such as a woven fabric, it is possible to prevent bleeding and form a good image.
[0054]
According to the third aspect of the present invention, since the ultraviolet curable ink used for forming an image is a cationic polymerization ink containing a highly reactive cationic polymerizable compound, the illuminance of ultraviolet light is relatively low. Even if it is present, the curing reaction proceeds promptly to sufficiently cure, and it is possible to suppress a decrease in image quality. At the same time, there is also an effect that the odor of the ink is small and the fixability to the fabric is good.
[0055]
According to the fourth aspect of the present invention, a higher effect can be obtained by applying the configuration of the present invention to a serial printer.
[0056]
According to the fifth aspect of the present invention, a higher effect can be obtained by applying the configuration of the present invention to a line printer.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a schematic configuration of an inkjet printer according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a schematic control configuration of the inkjet printer of FIG. 1;
FIG. 3 is a table showing a specific example of an ink composition set.
4 is a view showing a chemical formula of an exemplary compound A in the ink composition set of FIG.
FIG. 5 is a view showing a chemical formula of an exemplary compound TX in the ink composition set of FIG. 3;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Inkjet printer 2 Platen 3 Driving source 3a, 3b of conveyance device 4 Conveying roller 4 Image recording parts 5, 6, 7, 8 Recording head 9, 10 Ultraviolet irradiation device 9a, 10a Ultraviolet light source 11 Carriage 11a Carriage driving source 12 Guide member 50 Control unit 51 Storage unit 52 Input unit 99 Recording medium (textile)
A Transport direction B Scanning direction

Claims (5)

An ink jet recording head ejects an ultraviolet curable ink onto a recording medium to form an image, and then irradiates ultraviolet rays from an ultraviolet irradiation device to cure and fix the ink that has landed on the recording medium. A printer,
The recording medium is a woven fabric,
The ink contains a pigment,
The minimum amount of ink ejected from each nozzle of the recording head is controlled to be 2 pl to 10 pl per ejection,
An ink jet printer, comprising: a control unit for controlling a printing resolution on the recording medium to be 600 dpi or more. The inkjet printer according to claim 1,
An ink jet printer, wherein the ink is irradiated with ultraviolet rays from the ultraviolet irradiation device within one second after the ink discharged from the recording head lands on a recording medium. The inkjet printer according to claim 1 or 2,
An ink jet printer, wherein the ultraviolet curable ink is a cationic polymerization ink. The inkjet printer according to any one of claims 1 to 3,
An ink jet printer, which is a serial printer. The inkjet printer according to any one of claims 1 to 3,
An ink jet printer, being a line printer.

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