JP2012171098A - Liquid jetting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid jetting device for suppressing environmental pollution by volatile organic compounds.SOLUTION: When the volatile organic compound is vaporized by liquid jetted from a jetting head, a supply part supplies the volatile organic compound to a combustion part together with air. The combustion part includes a platinum catalyst, uses the platinum catalyst to make the supplied volatile organic compound react with oxygen, and causes combustion. A drying part dries the liquid jetted from the jetting head by heat generated by the combustion at the combustion part.

Description

The present invention relates to a liquid ejecting apparatus that ejects a liquid such as ink containing a volatile organic compound.

2. Description of the Related Art Printing apparatuses that print an image by ejecting ink onto a print medium are widely used. In this printing apparatus, an image is printed by ejecting ink from an ejection head while reciprocating a carriage provided with the ejection head on a print medium such as paper.

In general, the ink contains a volatile organic compound such as an organic solvent. Therefore, when a large amount of ink is ejected onto the print medium, or when a large amount of ink is discharged during the flushing process or cleaning process, a large amount of volatile organic compounds are vaporized from the ink and air is discharged. May diffuse into the environment and contaminate the environment.

Therefore, conventionally, a technique for avoiding environmental pollution by collecting such vaporized volatile organic compounds with a filter has been proposed (Patent Document 1).

JP 2009-90480 A

However, in the proposed technique described above, there is a limit to the capacity of the volatile organic compound that can be collected by the filter, and thus there is a problem that the filter must be periodically replaced.

The present invention has been made to solve the above-described problems of the prior art,
The purpose is to provide a technology capable of suppressing environmental pollution caused by volatile organic compounds.

In order to solve at least a part of the problems described above, the liquid ejecting apparatus of the present invention employs the following configuration. That is,
A liquid ejecting apparatus that ejects a liquid containing a volatile organic compound from an ejecting head,
A supply unit for supplying the volatile organic compound vaporized from the liquid coming out of the ejection head to the combustion unit together with air;
A platinum catalyst, and using the platinum catalyst, the volatile organic compound reacts with oxygen in the air and burns,
And a drying section that dries the liquid that has come out of the ejection head with heat generated by combustion.

Thus, in the liquid ejecting apparatus of the present invention, when the volatile organic compound is vaporized from the liquid discharged from the ejecting head, the supply unit supplies the volatile organic compound together with air to the combustion unit. The combustion section is equipped with a platinum catalyst, and the supplied volatile organic compound is used with the platinum catalyst.
React with oxygen and burn. The drying unit dries the liquid discharged from the ejection head with the heat generated by the combustion in the combustion unit.

Therefore, according to the liquid ejecting apparatus of the present invention, the vaporized volatile organic compound is burned using the platinum catalyst and converted into a harmless gas, so that environmental pollution due to the volatile organic compound can be suppressed. it can. Moreover, drying of a liquid can be accelerated | stimulated by utilizing the heat | fever generated by combustion for drying of a liquid.

The liquid ejecting apparatus of the present invention described above may include a transport unit that ejects the liquid from the ejecting head toward the medium and transports the medium. Then, the liquid ejected from the ejection head or the volatile organic compound vaporized from the liquid adhering to the medium is supplied to the combustion unit together with air and burned. Furthermore, the heat generated by the combustion may be carried on the air flow and transmitted from the combustion unit to the transport unit to heat the transport unit, thereby drying the liquid attached to the medium.

By doing so, it is possible to suppress environmental contamination due to the volatile organic compound vaporized from the liquid ejected from the ejection head or the liquid adhered to the medium, and the liquid adhered to the medium can be dried quickly.

Further, in the liquid ejecting apparatus of the present invention described above, an air flow may be generated using a fan, and an air flow may be guided from the combustion unit to the transport unit using a duct.

If it carries out like this, the heat which generate | occur | produced in the combustion part can be carried on air, and can be efficiently transmitted to a conveyance part.

In the liquid ejecting apparatus of the present invention described above, a waste liquid tank that stores the liquid sucked from the ejection head as waste liquid may be provided, and a waste liquid absorber that absorbs the waste liquid may be provided inside the waste liquid tank. Good. In such a liquid ejecting apparatus, the volatile organic compound vaporized from the waste liquid absorbed in the waste liquid absorber in the waste liquid tank is supplied to the combustion section together with the air and burned, and the heat generated by the combustion is discharged to the waste liquid tank. The waste liquid absorbed by the waste liquid absorber may be dried by transmitting to the waste liquid absorber and heating the waste liquid absorber.

In this way, environmental pollution by volatile organic compounds vaporized from the waste liquid in the waste liquid tank can be suppressed, and the waste liquid absorbed by the waste liquid absorber can be dried in a short time.

Further, in the liquid ejecting apparatus of the present invention described above, a heater may be provided in a combustion unit that burns a volatile organic compound.

In this way, since the concentration of the volatile organic compound is low, the reaction heat sufficient to maintain the temperature of the platinum catalyst cannot be obtained, and as a result, even if it is difficult to maintain combustion, heating with a heater is required. Thus, the temperature of the platinum catalyst can be maintained. For this reason, even when the concentration of the volatile organic compound is low, combustion can be maintained, and drying of the liquid can be promoted.

Furthermore, the liquid injection apparatus of the present invention described above may further include an auxiliary fuel supply unit for supplying auxiliary fuel from the auxiliary fuel tank to the combustion unit.

In this way, even if it is difficult to generate sufficient reaction heat with the platinum catalyst due to the low concentration of volatile organic compounds in the combustion section, the auxiliary fuel supply section supplies auxiliary fuel to the combustion section. The platinum catalyst can generate sufficient reaction heat to maintain the combustion reaction. For this reason, even when the concentration of the volatile organic compound is low, the liquid can be dried in a short time.

It is sectional drawing which showed typically the principal part in the inkjet printer 100 as a 1st Example of this invention. It is sectional drawing which showed typically the principal part in inkjet printer 100 'as a modification of a 1st Example. It is sectional drawing which showed typically the vicinity part of the cap part 204 and the waste-liquid tank 218 in the inkjet printer 200 as a 2nd Example of this invention.

Hereinafter, in order to clarify the contents of the present invention described above, examples will be described in the following order.
A. First embodiment:
B. Modification of the first embodiment:
C. Second embodiment:

A. First embodiment:
FIG. 1 is a cross-sectional view schematically showing a main part of an ink jet printer 100 as a first embodiment of the present invention. The inkjet printer 100 is a large business printer.

As shown in FIG. 1, an ejection head 102 for ejecting ink downward is provided at the center of the inkjet printer 100. Below the ejection head 102, a paper conveyance device 104 for conveying the paper 110, which is a printing medium, is disposed. The paper transport device 104 includes two rotating rollers 106a and 106b and a transport belt 108 that is spanned between the two rollers 106a and 106b.
A paper feed port 112 for feeding paper 110 is provided in the casing of the inkjet printer 100.
And a paper discharge port 114 for discharging the paper 110 to the outside.

An intake duct 116 is provided in the vicinity of the ejection head 102. The intake duct 116 has an intake port 118 that opens toward the ejection head 102, and an intake fan 120 is attached to the intake port 118. The intake duct 116 is a pipe 1 extending downward.
22, and the other end of the pipe 122 is connected to the combustion unit 126. The combustion unit 126 includes a platinum catalyst (not shown) and a heater (not shown) configured with a heating wire or the like inside. A piping 128 is connected to the combustion unit 126.
The other end of the pipe 128 is exposed to the outside of the inkjet printer 100 as an exhaust port 130.

Further, a blower fan 132 is provided in the vicinity of the combustion unit 126. In addition, a blower duct 134 is attached to the combustion unit 126 on the opposite side of the blower fan 132, and an exhaust port 136 of the 134 is open toward the conveyance belt 108 of the paper conveyance device 104.

In the present embodiment, the intake duct 116, the intake fan 120, the pipe 122, and the like correspond to the “supply section” in the claims. The blower fan 132, the blower duct 134, and the like correspond to a “drying unit” in the claims. The paper 110 corresponds to the medium in the claims, and the paper conveyance device 104 corresponds to the “conveyance unit” in the claims.

Next, the operation of the ink jet printer 100 in the present embodiment will be described. At the time of printing, the paper 110 that is a printing medium is fed from the paper feed port 112 and then placed on the transport belt 108 of the paper transport device 104 and is transported in the direction of the arrow as the transport belt 108 moves. . When the sheet 110 passes below the ejection head 102, the ejection head 1
Ink is ejected from 02 toward the paper 110, whereby an image is printed on the paper 110. The printed paper 110 is further transported by the transport belt 108, and then
The paper is discharged from the paper discharge port 114 to the outside.

In general, the ink contains a volatile organic compound such as an organic solvent. Then, when the ink is ejected from the ejection head 102 or after adhering to the paper 110, the volatile organic compound is vaporized from the ink, diffuses into the air, and becomes united with the air. Therefore, a large amount of volatile organic compounds are contained in the air around the ejection head 102 and the paper 110. Therefore, the environment may be polluted with these volatile organic compounds as they are.

Therefore, in this embodiment, during printing, the intake fan 120 is rotated so that the intake duct 1 is rotated.
The air containing these volatile organic compounds is sucked from 16 intake ports 118. The air collected by the intake air is sent from the intake duct 116 to the combustion unit 126 via the pipe 122. As described above, since the combustion unit 126 includes a platinum catalyst, air containing a volatile organic compound is exposed to the platinum catalyst. As a result, in the platinum catalyst portion, the volatile organic compound reacts with oxygen in the air and burns at a low temperature of about 200 ° C to 400 ° C. Carbon dioxide, water vapor, and the like generated as a result of combustion are discharged from the exhaust port 130 to the outside of the inkjet printer 100 through the pipe 128. When the temperature of the platinum catalyst is 200 ° C. or lower, it becomes difficult to maintain combustion. Therefore, when the temperature of the air supplied to the platinum catalyst is extremely low, it is difficult to maintain the temperature of the platinum catalyst, or because the concentration of volatile organic compounds is low, When it is difficult to maintain the temperature of the catalyst, it is difficult to maintain combustion with the platinum catalyst. However, in normal cases, the temperature of the platinum catalyst is maintained at 200 ° C. or higher by the combustion heat generated by the platinum catalyst.

At this time, when the blower fan 132 is rotated, the conveying belt 108 is moved from the combustion unit 126.
In the air duct 134, an air flow as indicated by an arrow is generated. Thereby, in the combustion part 126, the heat generated by the combustion travels on the air flow,
The air is discharged from the exhaust port 136 together with the air, and the conveying belt 108 is heated. As a result, the paper 110 transported by the transport belt 108 is also heated, so that drying of the ink adhering to the paper 110 is promoted.

As described above, according to the present embodiment, volatile organic compounds diffused in the air are collected, burned using a platinum catalyst, and converted into harmless gases such as carbon dioxide and water vapor. Environmental pollution by volatile organic compounds can be suppressed. In addition, by using a platinum catalyst, it is not necessary to replace the catalyst periodically, so the maintenance load can be reduced. Moreover, since it is made to burn using a platinum catalyst, it is 200 ° C. to 400 ° C. without emitting a flame.
Since combustion at a low temperature is possible, safety can be improved. Furthermore, by using the heat generated by the combustion to dry the ink attached to the paper 110, it is possible to promote the drying of the ink, and as a result, it is possible to prevent the ink from bleeding on the paper 110.

As described above, in order to maintain the combustion reaction using the platinum catalyst in the combustion section 126, the reaction temperature needs to be 200 ° C. or higher. Therefore, when the concentration of the volatile organic compound is lowered, the reaction temperature may be lowered to below 200 ° C., and in this case, the combustion reaction may be stopped.

Therefore, in this example, since the concentration of the volatile organic compound is low, when the reaction temperature is low, the heater provided in the combustion unit 126 is started to heat the platinum catalyst,
The reaction temperature is raised to 200 ° C. or higher. Thereby, even when the density | concentration of a volatile organic compound is low, drying of an ink can be accelerated | stimulated.

B. Modification of the first embodiment:
In the first embodiment described above, when the concentration of the volatile organic compound is low, a heater is used to raise the temperature of the combustion reaction. However, in this modified example, auxiliary fuel is used instead of the heater. I use it.

FIG. 2 is a cross-sectional view schematically showing main parts of an ink jet printer 100 ′ as a modification of the first embodiment. In the following modification, the description will focus on the changes made to the first embodiment described above. Therefore, the configurations not particularly mentioned are the same as those in the first embodiment. Further, the same configurations as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment.

In this modification, the difference from the first embodiment shown in FIG. 1 is that the combustion unit 126 ′ does not include a heater, and instead, an auxiliary fuel tank 138 for storing auxiliary fuel,
One end of the auxiliary fuel tank 138 is connected, and the other end 140 is connected to the pipe 122.
It is a point provided with. Since other configurations are the same as those of the first embodiment, description thereof is omitted. In this modified example, the pipe 140 and the like correspond to an “auxiliary fuel supply unit” in the claims.

In such a configuration, in this modified example, when it is difficult to maintain the temperature of the platinum catalyst due to the low concentration of the volatile organic compound, the auxiliary fuel is supplied from the auxiliary fuel tank 138 through the pipes 140 and 122. And is supplied to the combustion section 126 ′. As a result, in the combustion section 126 ′, the combustion reaction using the platinum catalyst is promoted by the supplied auxiliary fuel, so that the temperature of the platinum catalyst rises and combustion can be maintained. This
Even when the concentration of the volatile organic compound is low, drying of the ink can be promoted.

As the auxiliary fuel, it is preferable to use a combustible gas such as hydrogen, methane, alcohol, or benzene. However, sulfur compounds, phosphine, halogen compound ions, amines, carbon monoxide, etc. cannot be used as auxiliary fuel. This is because these substances are preferentially adsorbed to the active site (the place where the reaction proceeds) in the platinum catalyst, preferentially adsorbing over the substrate, thus greatly reducing (poisoning) the catalytic activity of platinum. is there.

In this modification, the auxiliary fuel tank 138 and the like are used instead of the heater, but the heater and the auxiliary fuel tank 138 and the like may be used together.

C. Second embodiment:
FIG. 3 is a cross-sectional view schematically showing the vicinity of the cap portion 204 and the waste liquid tank 218 in the ink jet printer 200 as the second embodiment of the present invention. The inkjet printer 200 is a household printer. In the second embodiment, the description will focus on the changes made to the first embodiment. Therefore, the configurations not particularly mentioned are the same as those in the first embodiment. Further, the same configurations as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment.

As shown in FIG. 3, a cap unit 204 is provided inside the inkjet printer 200 at a retracted position (home position) of the ejection head 202. The cap portion 204 is made of resin and has a concave shape on the top. A rubber packing 206 is provided inside the concave mold of the cap portion 204, and this packing 206 also forms a concave mold on the top.
A sponge-like absorbent member 208 is provided inside the concave shape of the packing 206. The cap portion 204 is provided with through holes 204a and 204b. Among them, the through hole 204a has one end connected to the pipe 210 and the other end to the packing 206.
And is in contact with the absorbing member 208. The other end of the pipe 210 is connected to an air release valve (not shown). One end of the through hole 204 b is connected to the pipe 212, and the other end penetrates the packing 206 and is in contact with the absorbing member 208. The other end of the pipe 212 is the waste liquid pump 2.
14 and the waste liquid pump 214 is connected to the waste liquid tank 218 via the pipe 216.
It is connected to the.

In the waste liquid tank 218, a waste liquid absorber 220 is provided in the lower part, and the upper part is a space. In addition to the pipe 216 described above connected to the upper part of the waste liquid tank 218, the pipe 222
And a pipe 226 are connected. Among these, the other end of the pipe 222 is open to the atmosphere, and an air intake valve 224 is attached in the middle. Further, the other end of the pipe 226 is connected to the air supply pump 230 via the pipe 228. Furthermore, the air pump 230
It is connected to the combustion section 234 via a pipe 232.

The combustion unit 234 is disposed below and in contact with the waste liquid tank 218 via a partition wall 235, and includes a platinum catalyst (not shown) therein. A pipe 236 is connected to the combustion unit 234, and the other end of the pipe 236 is exposed to the outside of the inkjet printer 200 as an exhaust port 238. In addition, at the junction of the pipe 226 and the pipe 228, the pipe 2
40 is connected. The other end of the pipe 240 is an auxiliary fuel tank for storing auxiliary fuel (
The fuel supply valve 242 is attached to the middle of the pipe 240.

In this embodiment, the pipes 226 and 228, the air supply pump 230, the pipe 232, and the like correspond to the “supply section” in the claims. A partition wall 235 between the combustion unit 234 and the waste liquid tank 218 corresponds to a “drying unit” in the claims. Further, the piping 240, the fuel supply valve 242 and the like correspond to “auxiliary fuel supply unit” in the claims.

Next, the operation of the ink jet printer 200 in the present embodiment will be described. During standby, the ejection head 202 is retracted to the home position. At this time, the cap portion 204 is moved upward, and the packing 206 is moved to the ejection head 20 as shown in FIG.
The ink is prevented from drying in the ejection head 202 by being pressed against the bottom surface of No. 2.

In general, in the case of an ink jet printer, the ink thickens when the ink is dried, so that it is necessary to perform ink maintenance. Typical processes for this ink maintenance include a flushing process and a cleaning process.

In the case of the flushing process, after the ejection head 202 is moved to the home position, the ejection head 202 is driven above the cap portion 204 to inject ink from the ejection head 202 toward the absorbing member 208 in the cap portion 204. Let spray. Thereafter, when a predetermined amount is injected, the flushing process is completed.

On the other hand, in the cleaning process, after the ejection head 202 is moved to the home position, the cap portion 204 is moved upward, and the packing 206 is pressed against the bottom surface of the ejection head 202 as shown in FIG. In this state, the waste liquid pump 214 is driven while the air release valve (not shown) is closed. Then, the bottom surface of the ejection head 202 and the packing 206
Therefore, the ink in the ejection head 202 is sucked out to the absorbing member 208 in the cap portion 204. Thereafter, when a predetermined amount is sucked out, the atmosphere release valve (not shown) is opened while the waste liquid pump 214 is driven. Then, the piping 210, 20 from the air release valve
Since the air is sucked into the gap between the bottom surface of the ejection head 202 and the packing 206 via 4a, the waste ink stored in the absorbing member 208 is sent to the waste liquid tank 218 via the through hole 204b, the waste liquid pump 214, and the pipe 216. And collected in the waste liquid tank 218. The collected waste ink is absorbed by the waste liquid absorber 220. Thereafter, the cap unit 204 is moved downward and detached from the ejection head 202 to complete a series of cleaning processes.

As described above, since the ink contains a volatile organic compound such as an organic solvent, the waste ink absorbed in the waste liquid absorber 220 naturally contains the volatile organic compound. . Accordingly, the volatile organic compound is vaporized from the waste ink and diffuses in the air. Therefore, the environment may be polluted with these volatile organic compounds as they are. Moreover, when a large amount of waste ink is absorbed by the waste liquid absorber 220, in a room temperature environment,
Since it takes a considerable amount of time to vaporize all volatile organic compounds from the waste ink, the vaporized volatile organic compounds are discharged over a long period of time. If the volatile organic compound is flammable, the risk of ignition etc. will be taken for a long time. Therefore,
The waste ink absorbed by the waste liquid absorber 220 needs to quickly vaporize all volatile organic compounds and dry them.

Therefore, in this embodiment, at the timing when the waste ink is absorbed by the waste liquid absorber 220, for example, after the cleaning process is completed, the air suction valve 224 is opened and the air feed pump 2 is opened.
30 is driven. Opening of the atmospheric suction valve 224 causes air to flow into the waste liquid tank 218 from the atmosphere via the pipe 222, and vaporizes from the waste ink absorbed by the waste liquid absorber 220 in the space above the waste liquid tank 218. Mixed with volatile organic compounds. From the space, the air containing the volatile organic compound is supplied with pipes 226 and 228, an air supply pump 230,
It is sent to the combustion section 234 via the pipe 232. Since the combustion unit 234 includes a platinum catalyst therein, when air containing a volatile organic compound is exposed to the platinum catalyst, the volatile organic compound reacts with oxygen in the air in the platinum catalyst portion. And it burns at a low temperature of about 200 ° C to 400 ° C. Carbon dioxide, water vapor, etc. generated as a result of combustion are removed from the pipe 236.
Then, the air is discharged from the exhaust port 238 to the outside of the inkjet printer 200.

At this time, the combustion unit 234 is located below the waste liquid tank 218 and is disposed in the waste liquid tank 218.
And the partition wall 235 are in contact with each other, the heat generated by the combustion in the combustion section 234 is
Propagated to the waste liquid tank 218 through the partition wall 235, and the waste liquid absorber 220 in the waste liquid tank 218.
Heat. As a result, vaporization of the volatile organic compound from the waste ink absorbed by the waste liquid absorber 220 is likely to proceed, and all the volatile organic compounds are vaporized in a shorter time than in a room temperature environment. be able to. Thereby, the waste ink absorbed by the waste liquid absorber 220 can be dried in a short time.

The combustion reaction in the combustion unit 234 continues until all volatile organic compounds are vaporized from the waste ink absorbed by the waste liquid absorber 220. When all the volatile organic compounds are vaporized and the combustion reaction is completed, the air intake valve 224 is closed and the driving of the air supply pump 230 is stopped.

As described above, according to the present embodiment, the volatile organic compound vaporized from the waste ink absorbed by the waste liquid absorber 220 is sent to the combustion unit 234 together with air, and the combustion unit 234 uses the platinum catalyst. Since it is burned and converted into harmless gases such as carbon dioxide and water vapor, environmental pollution by volatile organic compounds can be suppressed. In addition, by using a platinum catalyst, it is not necessary to replace the catalyst periodically, so the maintenance load can be reduced. Also,
Since the platinum catalyst is used for combustion, it is possible to perform combustion at a low temperature without emitting a flame, so that safety can be improved. Furthermore, by using the heat generated by the combustion for drying the waste ink, the waste ink can be dried in a short time, and the risk of ignition and the like can be reduced.

Also in this embodiment, as in the case of the first embodiment, in order to maintain the combustion reaction using the platinum catalyst in the combustion section 234, the reaction temperature needs to be 200 ° C. or higher. Therefore, when the concentration of the volatile organic compound is lowered, the temperature of the platinum catalyst is lower than 200 ° C.,
The combustion reaction may stop.

Therefore, in this embodiment, as in the case of the first modification, when it is difficult to maintain the temperature of the platinum catalyst because the concentration of the volatile organic compound is low, the fuel supply valve 242 is opened, Auxiliary fuel is supplied from an auxiliary fuel tank (not shown) to the combustion unit 234 via pipes 240 and 228. As a result, in the combustion unit 234, the combustion reaction using the platinum catalyst is promoted by the supplied auxiliary fuel, so that the temperature of the platinum catalyst can be maintained.
As a result, even when the concentration of the volatile organic compound is low, the waste ink absorbed by the waste liquid absorber 220 can be quickly dried.

Since the auxiliary fuel is the same as that described in the first modification, the description thereof is omitted.

In this embodiment, an auxiliary fuel tank or the like is used to raise the reaction temperature, but a heater may be used as in the case of the first embodiment. Furthermore, you may make it use both an auxiliary fuel tank etc. and a heater.

Although various embodiments have been described above, the present invention is not limited to all the above embodiments, and can be implemented in various modes without departing from the scope of the invention.

100, 100 '... inkjet printer, 102 ... jetting head,
104: paper transport device, 106a, b ... roller, 108 ... transport belt,
110: paper, 112 ... paper feed port, 114 ... paper discharge port,
116 ... Intake duct, 118 ... Inlet, 120 ... Intake fan,
122 ... pipe, 126 ... combustion part, 128 ... pipe,
130 ... Exhaust port, 132 ... Blower fan, 134 ... Blower duct,
136 ... exhaust port, 138 ... auxiliary fuel tank, 140, 122 ... piping,
140 ... pipe, 200 ... inkjet printer, 202 ... jet head,
204 ... cap part, 204a, b ... through hole, 206 ... packing,
208 ... Absorbing member, 210, 212 ... Piping, 214 ... Waste liquid pump,
216 ... pipe, 218 ... waste liquid tank, 220 ... waste liquid absorber,
222 ... pipe, 224 ... atmospheric intake valve, 226,228 ... pipe,
230 ... Air supply pump, 232 ... Piping, 234 ... Combustion section,
235 ... partition wall, 236 ... piping, 238 ... exhaust port,
240 ... pipe, 242 ... fuel supply valve

Claims (6)

A liquid ejecting apparatus that ejects a liquid containing a volatile organic compound from an ejecting head,
A supply unit for supplying the volatile organic compound vaporized from the liquid coming out of the ejection head to the combustion unit together with air;
A platinum catalyst, and using the platinum catalyst, the volatile organic compound reacts with oxygen in the air and burns,
A liquid ejecting apparatus comprising: a drying unit that dries the liquid that has come out of the ejecting head with heat generated by combustion. The liquid ejecting apparatus according to claim 1,
A transport unit for transporting the medium;
The ejecting head ejects the liquid toward the medium;
The supply unit supplies the volatile organic compound vaporized from the liquid ejected from the ejection head or the liquid attached to the medium together with air to the combustion unit,
The said drying part is a liquid-jet apparatus which dries the said liquid adhering to the said medium by transmitting the said heat which generate | occur | produced by combustion to the said conveyance part from the said combustion part by the flow of air, and heating this conveyance part. The liquid ejecting apparatus according to claim 2,
The drying unit
A fan for generating the air flow;
A liquid ejecting apparatus comprising: a duct for guiding the flow of air from the combustion unit to the transport unit. The liquid ejecting apparatus according to claim 1,
It has a waste liquid absorber inside, and includes a waste liquid tank that absorbs and stores the liquid sucked out from the ejection head as waste liquid in the waste liquid absorber,
The supply unit supplies the volatile organic compound vaporized from the waste liquid absorbed by the waste liquid absorber in the waste liquid tank, together with air, from the waste liquid tank to the combustion unit,
The liquid ejecting apparatus that dries the waste liquid absorbed in the waste liquid absorber by transferring the heat generated by the combustion from the combustion section to the waste liquid tank and heating the waste liquid absorber. The liquid ejecting apparatus according to claim 1,
The combustion unit is a liquid ejecting apparatus including a heater. The liquid ejecting apparatus according to claim 1,
A liquid injection apparatus including an auxiliary fuel supply unit that supplies auxiliary fuel from an auxiliary fuel tank to the combustion unit.

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