JP2022015017A - Recording device and recording method - Google Patents

Abstract

To prevent an electric charge charged onto a surface of a medium to be recorded from causing poor ejection.SOLUTION: A recording device 1 comprises: a delivering part 2 that delivers a roll-like medium M to be recorded, while supporting the medium M to be recorded; a head 5 that forms an image by ejecting ink onto a surface Ma of the medium M to be recorded delivered from the delivering part 2; an electric charge removing part 13, arranged between the delivering part 2 and the head 5 on a conveying passage of the medium M to be recorded, and removing electric charge charged onto the surface Ma; and a humidifying part 20, arranged between the delivering part 2 and the electric charge removing part 13 on the conveying passage of the medium M to be recorded, and humidifying the surface Ma.SELECTED DRAWING: Figure 1

Description

The present invention relates to a recording device and a recording method.

Conventionally, recording devices having various configurations have been used. The recording medium may be charged depending on the configuration of the recording device and the conditions of use. If the recording medium is charged, it may cause a malfunction. Therefore, for example, as in the printer disclosed in Patent Document 1, a recording device provided with a static elimination unit for statically eliminating charged charges on the surface of the recording medium is disclosed.

JP-A-2017-196745

The printer described in Patent Document 1 is provided with a corona processor, and the surface of the recording medium is modified by corona irradiation before ejecting ink from the head to form an image to improve recording quality. Can be improved. However, if the recording medium is charged as described above, a problem may occur, and it may not be possible to sufficiently eliminate the charged charge on the surface of the recording medium simply by providing a static elimination unit.

As a result of diligent studies by the present inventors, the following was found. When corona irradiation is performed, positively charged radicals generated by corona irradiation may adhere to the surface of the recording medium. When the positive charge charged on the surface of the recording medium cannot be sufficiently removed by the static elimination unit, the positively charged radical is generated when the portion to which the radical is attached is conveyed to the region facing the head. Along with being attracted to the nozzle forming surface of the negatively charged head, ink components such as ink mist also positively charged are attracted to the nozzle forming surface, and radicals and ink components are polymerized on the nozzle forming surface to generate polymerized foreign matter. In some cases, foreign matter deposits may be formed on the nozzle forming surface. In particular, when PET (polyethylene terephthalate) or the like is used as the recording medium, such a phenomenon is likely to occur. If the foreign matter adheres to the head, the ink ejection direction may deviate from a desired direction, which may cause ejection failure. Therefore, due to the inability to sufficiently eliminate static electricity on the surface of the recording medium, radicals generated by corona irradiation and ink mist generated by ink ejection are polymerized on the nozzle forming surface, resulting in ejection failure. It is required to suppress the cause. Further, even when corona irradiation is not performed, it is required to sufficiently eliminate static electricity on the surface of the recording medium to prevent ink mist from adhering to the nozzle forming surface.

In the recording apparatus of the present invention for solving the above problems, ink is applied to the surface of the feeding unit that feeds out the recorded medium while supporting the roll-shaped recorded medium and the surface of the recorded medium that is fed out from the feeding portion. A head for forming an image by discharging, a static elimination unit arranged between the feeding portion and the head in the transport path of the recorded medium, and a static elimination section for removing electric charges on the surface, and transporting the recorded medium. It is characterized by including a humidifying portion which is arranged between the feeding portion and the static elimination portion in the path and humidifies the surface.

Further, the recording method of the present invention for solving the above-mentioned problems includes a feeding step of feeding out a roll-shaped recorded medium, a humidifying step of humidifying the surface of the recorded medium fed out in the feeding step, and the surface. It is characterized by having a static elimination step of removing electric charges after the humidification step and an image forming step of ejecting ink from a head onto the surface of the statically eliminated surface to form an image.

The schematic side view of the recording apparatus which concerns on one Embodiment of this invention. The block diagram which shows the electric structure of the recording apparatus which concerns on one Embodiment of this invention. The conceptual diagram of the recording apparatus which concerns on one Embodiment of this invention. A conceptual diagram of a recording device according to a reference example.

First, the present invention will be schematically described.
The recording device according to the first aspect of the present invention for solving the above problems includes a feeding unit that feeds out the recorded medium while supporting a roll-shaped recorded medium, and the recorded medium that is fed out from the feeding unit. A head for forming an image by ejecting ink on the surface of the recording medium, a static elimination unit arranged between the feeding portion and the head in the transport path of the recording medium, and a static elimination unit for removing electric charges on the surface. It is characterized by including a humidifying portion which is arranged between the feeding portion and the static elimination portion in the transport path of the recording medium and humidifies the surface.

According to this aspect, the humidifying section is provided on the upstream side of the static elimination section in the transport direction of the recording medium. As a result of diligent studies by the present inventors, the charge charged on the surface of the recording medium is charged on the surface of the recording medium by the static elimination unit by humidifying the surface of the recording medium before the charge is removed by the static elimination unit. It has been found that when the charged charge is removed, the influence of the reverse charge phenomenon in which the charge is charged to the opposite polarity due to the charge removal can be suppressed, and the charge elimination effect is particularly high. Therefore, according to this aspect, it is possible to suppress that the electric charge charged on the surface of the recording medium causes a ejection failure.

In the first aspect, the recording device according to the second aspect of the present invention is arranged between the feeding portion and the humidifying portion in the transport path of the recorded medium, and the surface is modified by corona irradiation. It is characterized by being provided with a quality corona irradiation unit.

According to this aspect, a corona irradiation unit is provided. Therefore, the recording quality can be improved by modifying the surface of the recording medium by corona irradiation before ejecting ink from the head to form an image.

The recording device according to the third aspect of the present invention is characterized in that, in the second aspect, the humidifying intensity adjusting unit for adjusting the humidifying intensity of the humidifying portion according to the corona irradiation intensity in the corona irradiation unit is provided.

Radicals may be generated by irradiating the surface of the recording medium with a corona, and the degree of radical generation changes depending on the corona irradiation intensity. According to this aspect, the humidifying intensity adjusting unit for adjusting the humidifying intensity of the humidifying unit according to the corona irradiation intensity in the corona irradiation unit is provided. Therefore, the humidification intensity can be adjusted according to the degree of generation of radicals corresponding to the corona irradiation intensity. Therefore, even if the degree of radical generation changes according to the corona irradiation intensity, it is possible to appropriately suppress the ejection failure.

In the first or second aspect, the recording device according to the fourth aspect of the present invention has a humidification intensity setting unit for setting the humidification intensity of the humidification unit and a humidification unit according to the setting in the humidification intensity setting unit. It is characterized by including a humidification strength adjusting unit for adjusting the humidification strength.

According to this aspect, a humidification intensity setting unit for setting the humidification intensity of the humidification unit and a humidification intensity adjusting unit for adjusting the humidification intensity of the humidification unit according to the setting in the humidification intensity setting unit are provided. Therefore, the user can easily set an appropriate humidification intensity and can appropriately suppress discharge defects.

The recording method according to the fifth aspect of the present invention includes a feeding step of feeding out a roll-shaped recorded medium, a humidifying step of humidifying the surface of the recorded medium fed out in the feeding step, and a charge charged on the surface. It is characterized by having a static elimination step of static elimination after the humidifying step, and an image forming step of ejecting ink from a head onto the surface of the static elimination step to form an image.

According to this aspect, after humidifying the surface of the recording medium, the electric charge charged on the surface of the recording medium is discharged, and then an image is formed. That is, the reverse charging phenomenon is suppressed, the surface of the recording medium is effectively destatic, and then recording is performed. Therefore, according to this aspect, it is possible to record while suppressing that the electric charge charged on the surface of the recording medium causes a ejection failure.

Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. First, the outline of the recording device 1 of this embodiment will be described with reference to FIG.

The recording device 1 of the present embodiment is a recording device that records an image on a recording medium M such as paper, cloth, or film, and is communicably connected to a computer which is an external device represented by PC46 in FIG. There is. As shown in FIG. 1, the recording device 1 of the present embodiment has a configuration capable of recording on a recording medium M wound in a roll shape, but has a cut sheet or the like as a cut sheet. It may be configured so that it can be recorded on the recording medium M.

As shown in FIG. 1, in the recording device 1 of the present embodiment, a roll-shaped recorded medium M is set and rotated in the rotation direction C to feed the recorded medium M. It is equipped with. The recording medium M is fed to the first transport roller pair 9 by the feeding unit 2. The feeding portion 2 includes a rotating shaft that supports the take-up shaft of the roll-shaped recorded medium M and rotates in the rotation direction C. Then, the recorded medium M fed out from the feeding unit 2 is conveyed in the conveying direction A by the first conveying roller pair 9.

The recorded medium M conveyed by the first transfer roller pair 9 is a corona irradiation unit 6 that modifies the surface Ma of the recorded medium M by irradiating the recorded medium M with a corona, and the surface Ma of the recorded medium M. It reaches the humidifying section 20 for humidifying the recording medium M, the static elimination section 13 for removing the electric charge charged on the surface Ma of the recorded medium M, and the transport drum 3 as the supporting portion of the recorded medium M via the relay roller 10. Then, the recording medium M is conveyed in close contact with the conveying drum 3 rotating in the rotation direction C.

Here, the corona irradiation unit 6 can change the output according to the user's instruction via the operation panel 45, the PC 46, or the like shown in FIG. By changing the output, the degree of modification of the surface Ma of the recording medium M can be changed. Increasing the output increases the degree of modification of the surface Ma of the recorded medium M, and decreasing the output decreases the degree of modification of the surface Ma of the recorded medium M. As described above, the recording device 1 of the present embodiment is configured to include the corona irradiation unit 6, but may be configured not to include the corona irradiation unit 6.

The humidifying portion 20 has a room shape through which the recording medium M passes, and has a mist generator 22 inside. As the recorded medium M passes through the room-shaped humidified portion 20 in which the mist is sprayed by the mist generator 22 and becomes wet, the surface Ma of the recorded medium M is uniformly humidified. However, the configuration of the humidifying portion 20 is not particularly limited, and for example, the mist may be sprayed onto the surface Ma of the recording medium M by the mist generator 22. The humidifying unit 20 can change the amount of mist generated from the mist generator 22 according to the output of the corona irradiation unit 6. By increasing the amount of mist generated, the static elimination effect of the static elimination unit 13 can be enhanced.

The static elimination unit 13 is an ionizer and irradiates the surface Ma of the recording medium M with ions having the opposite polarity to the electric charge generated when the roll-shaped recording medium M is peeled off. However, the static elimination unit 13 is not limited to such a configuration. For example, as a result of corona irradiation from the corona irradiation unit 6, ions having the opposite polarity to those charged on the surface Ma of the recording medium M may be irradiated toward the surface Ma of the recording medium M. good.

At a position facing the transport drum 3, a head unit 21 having a head 5 for ejecting ultraviolet curable ink and a temporary irradiation unit 7 having an ultraviolet irradiation unit for irradiating ultraviolet rays for temporary curing from an LED is provided. Four are formed. Specifically, the head unit 21 includes a head unit 21a composed of a head 5a corresponding to cyan ink and a temporary irradiation unit 7a, a head unit 21b composed of a head 5b corresponding to magenta ink and a temporary irradiation unit 7b, and yellow ink. A head unit 21c composed of a corresponding head 5c and a temporary irradiation unit 7c, and a head unit 21d composed of a head 5d corresponding to black ink and a temporary irradiation unit 7d are formed. Further, a main irradiation unit 8 as an ultraviolet irradiation unit for main curing the ultraviolet curable ink is formed downstream of the four head units 21 in the transfer direction A at a position facing the transfer drum 3. The head unit 21a, the head unit 21b, the head unit 21c, and the head unit 21d all have the same shape.

By modifying the surface Ma by the corona irradiation unit 6, the quality of the image formed on the recording medium M by the head unit 21 is improved. Generally, the higher the degree of modification of the surface Ma of the recording medium M, the better the recording quality. As described above, the corona irradiation unit 6 of this embodiment has a configuration in which the surface state of the recorded medium M can be modified into a plurality of modified states by changing the output, and the recording requested by the user. The surface state of the recording medium M can be modified into a plurality of modified states according to the quality. As the output of the corona irradiation unit 6 is increased and the degree of modification of the surface state of the recorded medium M is increased, the amount of radicals adhering to the surface Ma of the recorded medium M increases, but mist is generated from the mist generator 22. By increasing the amount and humidifying the surface Ma of the recording medium M more, the static elimination effect by the static elimination unit 13 can be enhanced.

An image is formed by the four head units 21 on the recording medium M that is conveyed in close contact with the transfer drum 3. Then, the image formed on the recorded medium M by the four head units 21 is fixed on the recorded medium M by the main curing of the ink forming the image by the irradiation unit 8. In the recording device 1 of the present embodiment, the irradiation intensity of the ultraviolet rays from the main irradiation unit 8 is stronger than the irradiation intensity of the ultraviolet rays from the temporary irradiation unit 7. In other words, in the recording device 1 of the present embodiment, the ink ejected to the recording medium M is temporarily cured by the irradiation of ultraviolet rays from the temporary irradiation unit 7 to prevent the ink from spreading too much. The ink is cured by irradiation with ultraviolet rays from the irradiation unit 8 and fixed on the recording medium M.

The recording device 1 of the present embodiment has a configuration capable of ejecting ultraviolet curable ink, and ejects ultraviolet curable ink to form an image, so that the ink is temporarily cured. The irradiation unit 7 and the main irradiation unit 8 are provided. However, it is not limited to such a configuration. For example, an ink other than the ultraviolet curable ink may be used, and the temporary irradiation unit 7 and the main irradiation unit 8 may not be provided.

Further, a tension roller 11 is provided downstream of the irradiation unit 8 in the transport direction A, and the recording medium M is transported from the transport drum 3 to the second transport roller pair 12 via the tension roller 11. Then, the recorded medium M transported by the second transport roller pair 12 is wound into a roll shape by rotating the winding unit 4 in the rotation direction C.

Here, each of the heads 5 in the recording device 1 of the present embodiment is a line head in which nozzles are formed in a line shape along the width direction B of the recording medium M on the nozzle forming surface. That is, the recording device 1 of this embodiment is a so-called line printer that continuously records while continuously transporting the recording medium M. However, the printer may be provided with a head that ejects ink while reciprocating in a direction intersecting the transport direction A.

Next, the electrical configuration of the recording device 1 of this embodiment will be described with reference to FIG.

The control unit 30 is provided with a CPU 31 that controls the entire recording device 1. The CPU 31 is connected via the system bus 32 to a storage unit 33 having a ROM for storing various control programs and the like executed by the CPU 31, a RAM for temporarily storing data, and an EEPROM. Here, the storage unit 33 stores data representing the relationship between the output of the corona irradiation unit 6 and the amount of water sprayed from the mist generator 22.

Further, the CPU 31 is connected to a head drive unit 34 for driving the head 5 and ejecting ink via the system bus 32.

Further, the CPU 31 is connected to the motor drive unit 35, which is connected to the feeding motor 36, the first transport motor 37, the second transport motor 39, and the take-up motor 40, via the system bus 32. Here, the feeding motor 36 is a rotation mechanism of the rotation shaft of the feeding portion 2, and is a motor that drives the feeding portion 2 in order to feed the recorded medium M to the first transport motor 37. Further, the first transport motor 37 is a motor for driving the first transport roller pair 9. Further, the second transfer motor 39 is a motor for driving the second transfer roller pair 12. The take-up motor 40 is a motor that drives the take-up unit 4 in order to take up the recording medium M in a roll shape.

Further, the CPU 31 is connected to the corona irradiation unit driving unit 41 for driving the corona irradiation unit 6 to modify the surface Ma of the recording medium M via the system bus 32. Further, the CPU 31 is connected to the temporary irradiation unit driving unit 42 for driving the temporary irradiation unit 7 to irradiate the recorded medium M with ultraviolet rays via the system bus 32. Further, the CPU 31 is connected to the main irradiation unit driving unit 43 for driving the main irradiation unit 8 to irradiate the ultraviolet rays of the recording medium M via the system bus 32.

Further, the CPU 31 is connected to the static elimination unit driving unit 14 for driving the static elimination unit 13 to eliminate static electricity on the surface Ma of the recording medium M via the system bus 32. Further, the CPU 31 is connected to the mist generator driving unit 15 for driving the mist generator 22 provided in the humidifying unit 20 to humidify the surface Ma of the recording medium M via the system bus 32. ..

Further, the CPU 31 has an operation panel 45 capable of receiving instructions from the user such as data input by the user via the system bus 32, and the user can manually set the humidification intensity of the humidifying unit 20. It is connected to the humidification intensity setting dial 16 as the humidification intensity setting unit, the PC 46 for transmitting and receiving data such as image data and signals, and the like via the input / output unit 44.

Next, charging and static elimination of the recorded medium M in the recording device 1 of this embodiment will be described with reference to FIGS. 3 and 4. Here, FIG. 3 is a diagram showing a state of charging and static elimination of the recorded medium M in the recording device 1 of the present embodiment including the humidifying unit 20. Note that FIG. 4 is a diagram for comparison with the recording device 1 of the present embodiment, and is a diagram showing the state of charging and static elimination of the recorded medium M in the recording device 100 of the reference example not provided with the humidifying unit 20. ..

In the recording device 1 of the present embodiment, first, as shown in the leftmost state of FIG. 3, the roll-shaped recorded medium M is peeled off when being fed out from the feeding portion 2, and is recorded. The back surface of the medium M is negatively charged, and the front surface of the recorded medium M is positively charged in an attempt to neutralize the negative charge charged on the back surface of the recorded medium M. Then, as shown in the second state from the left in FIG. 3, positively charged ions and positively charged radicals are generated as the corona irradiation unit 6 irradiates the corona, and the recording is performed. The negative charges associated with the peeling of the medium M are neutralized by these positive charges, and then the surface Ma of the recorded medium M is more positively charged, and the radicals adhere to the surface Ma of the recorded medium M. ..

Then, as shown in the third state from the left in FIG. 3, the surface Ma of the recording medium M is humidified in the humidifying section 20. Then, as shown in the fourth state from the left in FIG. 3, when the surface Ma of the recorded medium M is humidified, a negative charge is applied from the static elimination unit 13 to the recorded medium M. The positive charge on the surface Ma is effectively neutralized by the negative charge. Then, as shown in the rightmost state of FIG. 3, the ink droplet I is ejected from the head 5 in a state where the surface Ma of the recording medium M is hardly charged. Here, positively charged ink mist Im is generated as the ink droplet I is ejected from the head 5, but since the surface Ma of the recording medium M is hardly charged, the generated ink mist Im is generated. The positive charge on the surface Ma of the recording medium M prevents the recording medium M from being attracted to the negatively charged nozzle forming surface. Further, since the radicals adhering to the surface Ma of the recording medium M are not charged, they are not attracted to the negatively charged nozzle forming surface.

Next, in the recording device 100 of the reference example, first, as shown in the leftmost state of FIG. 4, the roll-shaped recorded medium M is peeled off when being fed out from the feeding portion 2. The recording medium M is negatively charged, and the front surface of the recording medium M is positively charged in an attempt to neutralize the negative charge charged on the back surface of the recording medium M. Then, as shown in the second state from the left in FIG. 4, positively charged ions and positively charged radicals are generated as the corona irradiation unit 6 irradiates the corona, and the recording is performed. The negative charges associated with the peeling of the medium M are neutralized by these positive charges, and then the surface Ma of the recorded medium M is more positively charged, and the radicals adhere to the surface Ma of the recorded medium M. .. Up to this point, it is the same as the recording device 1 of this embodiment.

However, since the recording device 100 of the reference example does not include the humidifying unit 20, as shown in the third state from the left in FIG. 4, the static elimination unit is in a state where the surface Ma of the recording medium M is not humidified. A negative charge is applied from 13. When the surface Ma of the recording medium M is not humidified, a positive charge remains on the surface Ma of the recording medium M due to the back charge phenomenon, as shown in the third state from the left in FIG. Then, as shown in the rightmost state of FIG. 4, when the ink droplet I is ejected from the head 5 and the ink mist Im is generated, the ink droplet I is negatively charged and the ink mist Im is positively charged. The positively charged ink mist Im repels the positive charge of the surface Ma of the recording medium M, and is attracted to and adheres to the nozzle forming surface of the negatively charged head 5. At the same time, positively charged radicals on the surface Ma of the recording medium M are attracted to and adhere to the nozzle forming surface.

In this way, when ink mist Im or radicals adhere to the nozzle forming surface of the head 5, a polymerization reaction occurs between these ink mist Ims and radicals on the nozzle surface, and this polymerization reaction generates a polymerized foreign substance, and this polymerized foreign substance is generated. Adhesively adheres to the nozzle forming surface, which causes ejection failure. Compared to the recording device 100 of the reference example, the recording device 1 of this embodiment can significantly suppress the adhesion of ink mist Im and radicals to the nozzle forming surface of the head 5, and can significantly suppress ejection defects. can.

Here, once summarized, as shown in FIG. 1, the recording apparatus 1 of the present embodiment has a feeding unit 2 and a feeding unit 2 for feeding out the recorded medium M while supporting the roll-shaped recorded medium M. The head 5 for forming an image by ejecting ink onto the surface Ma of the recorded medium M unwound from the recording medium M, and the head 5 arranged between the feeding portion 2 and the head 5 in the transport path of the recorded medium M to be recorded. A static elimination unit 13 that eliminates the electric charge charged on the surface Ma, and a humidifying portion 20 that is arranged between the feeding unit 2 and the static elimination unit 13 in the transport path of the recorded medium M and humidifies the surface Ma of the recorded medium M. , Is equipped. By humidifying the surface Ma of the recording medium M before the charge charged on the surface Ma of the recording medium M is removed by the static elimination unit 13, the back charge phenomenon is suppressed and the static elimination effect is particularly enhanced. Therefore, in the recording device 1 of the present embodiment provided with the humidifying unit 20 on the upstream side of the static elimination unit 13 in the transport direction of the recorded medium M, the electric charge charged on the surface Ma of the recorded medium M is defective. It is possible to suppress the cause.

Explaining the above from the viewpoint of the recording method, the recording apparatus 1 of the present embodiment is used to humidify the surface Ma of the recorded medium M fed out in the roll-shaped recorded medium M and the feeding process. An image is formed by ejecting ink from the head 5 onto the surface Ma of the recorded medium M, which has been decharged in the humidifying step, the static elimination step of removing the electric charge charged on the surface Ma of the recorded medium M after the humidifying step, and the static elimination step. It is possible to carry out a recording method having an image forming step to be performed. In the recording method, the surface Ma of the recording medium M is humidified, the electric charge charged on the surface Ma of the recording medium M is removed, and then an image is formed. That is, static elimination and recording are performed while effectively suppressing the back charge phenomenon. Therefore, by executing the recording method, it is possible to record while suppressing the charge charged on the surface Ma of the recording medium M from causing a discharge failure.

Further, as shown in FIG. 1, the recording device 1 of the present embodiment is arranged between the feeding portion 2 and the humidifying portion 20 in the transport path of the recorded medium M, and is irradiated with a corona to record the medium. It is provided with a corona irradiation unit 6 that modifies the surface Ma of M. Therefore, the recording device 1 of the present embodiment improves the recording quality by irradiating the recording medium M with corona before ejecting ink from the head 5 to form an image to modify the surface Ma of the recording medium M. Can be done.

However, as described above, by irradiating the surface Ma of the recording medium M with a corona, a radical as an electric charge may be generated. The degree of radical generation changes depending on the corona irradiation intensity. Therefore, the recording device 1 of the present embodiment has a configuration capable of adjusting the amount of mist generated from the mist generator 22 according to the corona irradiation intensity under the control of the control unit 30.

In other words, the recording device 1 of the present embodiment includes a control unit 30 as a humidification intensity adjusting unit that adjusts the humidification intensity of the humidification unit 20 according to the corona irradiation intensity in the corona irradiation unit 6. Therefore, the recording device 1 of the present embodiment can adjust the humidification intensity according to the degree of generation of radicals corresponding to the corona irradiation intensity. Therefore, the recording device 1 of the present embodiment can appropriately suppress ejection defects even if the degree of radical generation changes according to the corona irradiation intensity.

Further, as shown in FIG. 2, the recording device 1 of the present embodiment includes a humidification intensity setting dial 16 as a humidification intensity setting unit for setting the humidification intensity of the humidification unit 20. Then, the control unit 30 as the humidification intensity adjusting unit can adjust the humidification intensity of the humidification unit 20 according to the setting on the humidification intensity setting dial 16. Therefore, by using the recording device 1 of the present embodiment, the user can easily set an appropriate humidification intensity and can appropriately suppress ejection defects.

It should be noted that the present invention is not limited to the above examples, and various modifications can be made within the scope of the invention described in the claims, and it goes without saying that they are also included in the scope of the present invention.

1 ... Recording device, 2 ... Feeding part, 3 ... Conveying drum, 4 ... Winding part, 5 ... Head,
5a ... head, 5b ... head, 5c ... head, 5d ... head, 6 ... corona irradiation unit,
7 ... Temporary irradiation unit, 7a ... Temporary irradiation unit, 7b ... Temporary irradiation unit,
7c ... Temporary irradiation unit, 7d ... Temporary irradiation unit, 8 ... Temporary irradiation unit,
9 ... 1st transport roller pair, 10 ... relay roller, 11 ... tension roller,
12 ... 2nd transport roller pair, 13 ... static elimination unit, 14 ... static elimination unit drive unit,
15 ... Mist generator drive unit, 16 ... Humidification intensity setting dial (humidification intensity setting unit),
20 ... Humidifying section, 22 ... Mist generator, 30 ... Control section (humidifying intensity adjusting section), 31 ... CPU,
32 ... system bus, 33 ... storage unit, 34 ... head drive unit, 35 ... motor drive unit,
36 ... Feeding motor, 37 ... First transport motor,
39 ... 2nd transport motor, 40 ... take-up motor, 41 ... corona irradiation unit drive unit,
42 ... Temporary irradiation unit drive unit, 43 ... Main irradiation unit drive unit, 44 ... Input / output unit,
45 ... Operation panel, 46 ... PC, 100 ... Recording device, M ... Recording medium, Ma ... Surface,
I ... ink droplets, Im ... ink mist

Claims (5)

A feeding unit that feeds out the recorded medium while supporting the roll-shaped recorded medium, and
A head that ejects ink onto the surface of the recording medium fed from the feeding portion to form an image, and a head.
A static elimination unit arranged between the feeding portion and the head in the transport path of the recording medium to eliminate electric charges on the surface thereof.
A humidifying section arranged between the feeding section and the static elimination section in the transport path of the recording medium to humidify the surface, and a humidifying section.
A recording device characterized by being provided with. In the recording apparatus according to claim 1,
A recording device provided with a corona irradiation unit that is arranged between the feeding portion and the humidifying portion in the transport path of the recording medium and that modifies the surface by corona irradiation. In the recording apparatus according to claim 2,
A recording device including a humidifying intensity adjusting unit that adjusts the humidifying intensity of the humidifying unit according to the corona irradiation intensity of the corona irradiation unit. In the recording apparatus according to claim 1 or 2.
A humidification strength setting unit that sets the humidification strength of the humidification unit, and a humidification strength setting unit,
A humidifying intensity adjusting unit that adjusts the humidifying intensity of the humidifying unit according to the setting in the humidifying intensity setting unit, and a humidifying intensity adjusting unit.
A recording device characterized by being provided with. The feeding process of feeding the roll-shaped recording medium and the feeding process
A humidifying step of humidifying the surface of the recording medium fed out in the feeding step, and a humidifying step.
A static elimination step of removing the electric charge charged on the surface after the humidifying step, and a static elimination step.
An image forming step of ejecting ink from a head onto the surface of the statically eliminated surface to form an image,
A recording method characterized by having.

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