Ink-jet printer

Abstract

The utility model discloses an ink-jet printer. The ink-jet printer comprises a shell, an ink-jet assembly, an air blowing fan, an air guiding piece, a filtering piece and a fixing assembly. The air guide part is fixedly connected with the shell, an air guide space is formed in the air guide part, an air inlet is formed in the air guide part, the air guide space communicates with the internal space through the air inlet, an air outlet of the air blowing fan faces the air inlet, and the filter part is arranged in the air guide space; the air blowing fan introduces air in the inner space of the shell into the air guiding space, the air flow entering the air guiding space is filtered through the filtering piece, and the filtered air flow can circularly flow in the inner space and the air guiding space or circularly flow among the inner space, the air guiding space and the outside according to the assembling state of the fixing assembly. According to the ink-jet printer, the airflow containing the volatile compounds is uniformly blown to the filtering piece through high air pressure formed by the air blowing fan, the volatile compounds are filtered and absorbed through the filtering piece, and the VOC level of the ink-jet printer is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of gas filtration technology, and in particular to an inkjet printer. Background Art

[0002] With the advancement of science and technology and the rise of industry, the chemical industry, manufacturing, pharmaceutical factories, electronics factories, hospitals and other fields have generated a certain concentration of waste gas or air pollutants. Direct discharge will cause varying degrees of environmental pollution, with PM2.5 and even more dangerous bacteria or microorganisms permeating the air. If these emissions are not treated in a timely manner, long-term emissions will have a significant impact on the surrounding environment. Therefore, environmental protection has become one of the focuses of human life today. Environmental protection generally refers to the various actions taken by humans to solve current or potential environmental problems, coordinate the relationship between humans and the environment, protect the human living environment, and ensure the sustainable development of the economy and society. Among them, the treatment of VOC waste gas is particularly important.

[0003] In my country, VOCs are defined as organic compounds with a saturated vapor pressure greater than 70.91 Pa at room temperature, a boiling point between 50°C and 260°C at a standard atmospheric pressure of 101.3 kPa, and an initial boiling point of 250°C. These gases, or any volatile organic solid or liquid at room temperature and pressure, pose a health risk. Existing VOC filter boxes utilize simple axial fans and filters, resulting in slow purification and incomplete filtration. Utility Model Content

[0004] The present application provides an inkjet printer that can solve the problem of poor filtering effect of existing VOC gas filter boxes.

[0005] The present application provides an inkjet printer, comprising:

[0006] A shell is formed with an internal space and an opening connecting the external space and the internal space;

[0007] An inkjet assembly is disposed in the housing and located in the internal space;

[0008] An air guide member is disposed in the internal space and is fixedly connected to the housing. The air guide member extends in a direction away from the inkjet assembly to form an air guide space. The air guide member is provided with an air inlet, and the air guide space is connected to the internal space through the air inlet.

[0009] The blast fan is arranged on the air guide member, and the air outlet of the blast fan is arranged toward the air inlet;

[0010] The filter element is arranged in the air guide space;

[0011] The fixing component is arranged at the opening and can be detachably assembled with the air guide member; wherein,

[0012] The blower fan is used to pass the gas in the internal space into the air guide space, and the filter element is used to filter the air flow entering the air guide space; when the fixed component and the shell are in an assembled state, the gas circulates in the internal space and the air guide space; when the fixed component and the shell are in a disassembled state, the gas circulates between the internal space, the air guide space and the outside.

[0013] Furthermore, the air guide is arranged at the top of the internal space, and the air blowing fan is arranged close to the air outlet of the inkjet assembly, so that the air inlet is arranged close to the air outlet of the inkjet assembly.

[0014] Furthermore, there are two groups of blower fans, which are relatively arranged on both sides of the air guide space, so that the air outlets of the two groups of blower fans are relatively arranged on both sides of the air guide space and are connected to each other through the air guide space.

[0015] Furthermore, the two groups of blower fans are mirror-imaged relative to the central axis of the air guide space.

[0016] Furthermore, a first air duct and a second air duct are arranged in the air guide member, and the first air duct and the second air duct are mirror-arranged relative to the central axis; wherein the first air inlet of the first air duct and the second air inlet of the second air duct are respectively arranged on both sides of the air guide space along a direction perpendicular to the central axis.

[0017] Furthermore, the fixing assembly includes a first fixing plate, the first fixing plate and the air guide member are assembled through a locking structure, and a guide gap is formed between the first fixing plate and the filter member, and the guide gap changes the flow direction of the airflow.

[0018] Furthermore, a support bar is provided on one side of the first fixing plate close to the air guide member, and the support bar abuts against the filter member to form a flow guide gap between the first fixing plate and the filter member.

[0019] Furthermore, the fixing assembly further includes a second fixing plate, which is assembled with the first fixing plate. A guide opening is provided on a side of the second fixing plate close to the first fixing plate, and the guide opening is connected to the guide gap.

[0020] Furthermore, the filter element includes activated carbon and filter cotton, and the ratio of the area of the activated carbon to the area of the filter cotton is greater than or equal to 90%.

[0021] Furthermore, the shell includes a top plate, a bottom plate and side plates, the top plate and the bottom plate are arranged opposite to each other, the fixing components are arranged opposite to the side plates, and the fixing components are assembled with the top plate and the bottom plate respectively, and the side plates are assembled with the top plate and the bottom plate respectively.

[0022] Different from the prior art, the present application sets a blower fan to be used in conjunction with an air guide and a filter. The high wind pressure generated by the blower fan is used to evenly blow the airflow containing volatile compounds into the air guide space of the air guide. Since the filter is set in the air guide space, the airflow flowing into the air duct can also be evenly blown to the filter. The filter is further used to filter and absorb the volatile compounds, thereby improving the filtering effect and effectively reducing the VOC level of the inkjet printer. At the same time, the detachable assembly of the fixed component and the air guide can meet the needs of the inkjet printer in different application scenarios. For example, when the inkjet printer is used indoors, the fixed component can be assembled with the air guide to realize the control of the gas generated by the inkjet component to circulate inside the inkjet printer, that is, the gas circulates in the air guide space of the air guide and the internal space of the shell; or, when the inkjet printer is used outdoors, the fixed component can be disassembled so that the gas filtered by the filter can flow to the outside atmosphere, realizing the filtered external circulation between the inkjet printer and the outside atmosphere, that is, the gas circulates between the internal space of the shell, the air guide space of the air guide and the outside.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 This is a schematic structural diagram of the first embodiment of the inkjet printer of the present application;

[0026] Figure 2 is a schematic structural diagram of a second embodiment of the inkjet printer of the present application;

[0027] Figure 3 is a schematic structural diagram of a third embodiment of the inkjet printer of the present application;

[0028] Figure 4 yes Figure 1 Schematic diagram of the cross section of the inkjet printer along the AA direction;

[0029] Figure 5 yes Figure 1 A schematic diagram of the first specific structure of the middle air guide;

[0030] Figure 6 yes Figure 1 A second specific structural diagram of the middle air guide;

[0031] Figure 7 yes Figure 1 Schematic diagram of the specific structure of the fixed component;

[0032] Figure 8 yes Figure 7 A schematic diagram of the specific structure of the second fixed plate;

[0033] Figure 9 is a schematic structural diagram of a fourth embodiment of the inkjet printer of the present application;

[0034] Figure 10 yes Figure 9 Schematic diagram of the cross section of the inkjet printer along the BB direction. DETAILED DESCRIPTION

[0035] To help those skilled in the art better understand the technical solutions of this application, the inkjet printer provided by this application is described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments described are only some of the embodiments of this application, and not all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0036] The terms "first," "second," and the like in this application are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0037] Since VOC gases have an impact on human health, it is necessary to treat the VOC exhaust gas generated by different equipment and devices. However, existing VOC gas filter boxes usually only use a simple axial flow fan and a filter mesh structure to absorb exhaust gas, which cannot effectively filter and adsorb volatile substances.

[0038] At the same time, existing VOC gas filter boxes typically feature a one-way airflow path, which doesn't allow for recirculated air filtration. Therefore, when used indoors, VOC gas filter boxes fail to effectively filter and adsorb volatile organic compounds, resulting in indoor air failing to meet VOC level requirements. VOC levels are assessed based on the presence of odor, with higher levels indicating a higher VOC content in the air.

[0039] Among them, the limit value of VOC in indoor air is 0.6mg / m3 The VOC rating standard can be divided into six levels, and the first to sixth levels are no smell, barely smell, weak smell, very easy to smell, strong smell and extremely strong smell.

[0040] This application provides an inkjet printer that can effectively filter and absorb VOC exhaust gases, ensuring that the air in the inkjet printer's application environment meets a certain VOC level. The inkjet printer of this application can reduce the VOC level of indoor air from level 5 or 6 to level 3 or 4.

[0041] Specifically, the inkjet printer of the present application is internally provided with a blower fan and an air guide member used in conjunction with each other, which can evenly blow the volatile compounds generated by the inkjet printer to the filter member abutting the air guide member, wherein the active filtering components in the filter member adsorb and filter the volatile compounds, so that the gas blown out through the filter member meets the VOC level, thereby achieving the effect of air filtration.

[0042] See also Figures 1-10 , Figure 1 This is a schematic structural diagram of the first embodiment of the inkjet printer of the present application. Figure 2 This is a schematic structural diagram of the second embodiment of the inkjet printer of the present application. Figure 3 This is a schematic structural diagram of the third embodiment of the inkjet printer of the present application. Figure 4 yes Figure 1 Schematic diagram of the cross section of the inkjet printer along the AA direction, Figure 5 yes Figure 1 The first specific structural diagram of the middle air guide, Figure 6 yes Figure 1 The second specific structural diagram of the middle air guide, Figure 7 yes Figure 1 Schematic diagram of the specific structure of the fixed components, Figure 8 yes Figure 7 Specific structural diagram of the second fixed plate, Figure 9 This is a schematic structural diagram of the fourth embodiment of the inkjet printer of the present application. Figure 10 yes Figure 9 Schematic diagram of the cross section of the inkjet printer along the BB direction.

[0043] like Figure 1 and Figure 10 As shown, the inkjet printer 1 of this embodiment includes a blower fan 10, an air guide 20, a fixing assembly 30, a filter 40 and a housing 50, wherein the inkjet printer 1 also includes an inkjet assembly (not shown).

[0044] Specifically, if Figure 9 and Figure 10As shown, the housing 50 of this embodiment includes a top plate 51, a bottom plate 52, and a side plate 53, wherein the top plate 51 and the bottom plate 52 are arranged opposite each other, and the side plate 53 is assembled and arranged on the same side of the top plate 51 and the bottom plate 52. Optionally, the assembly between the top plate 51, the bottom plate 52, and the side plate 53 of this embodiment can be arranged by a snap-fit slot arrangement structure, or any other detachable assembly method.

[0045] The housing 50 defines an internal space 501, which is a hollow structure formed between multiple panels, such as the top panel 51, the bottom panel 52, and the side panels 53. Alternatively, the housing 50 of this embodiment may be the chassis of the inkjet printer 1, with the internal space 501 being the internal space within the chassis for arranging various components. The shape of the internal space 501 is related to the shape of the housing 50. In this embodiment, the housing 50 is generally rectangular, and the internal space 501 is the rectangular space within the housing 50.

[0046] In one embodiment, an opening is formed on the other side of the top plate 51 and the bottom plate 52, and the internal space 501 of the inkjet printer 1 is connected to the outside through the opening. Figure 10 The locking assembly 60 shown can further secure the multiple panels of the housing 50 .

[0047] The inkjet assembly of this embodiment is disposed within the interior space 501 of the housing 50, specifically at the top of the interior space 501 of the housing 50, or fixedly connected to the housing 50 via a locking assembly 60. Specifically, the top plate 51, inkjet assembly, and bottom plate 52 are sequentially arranged along the direction of gravity. The inkjet assembly of this embodiment can be a nozzle for producing liquid ink. When the inkjet assembly produces liquid ink, it simultaneously generates airflow, which drives the liquid ink to flow in the air. The liquid ink is a volatile compound.

[0048] like Figure 1 and Figure 10As shown, the blast fan 10 and the air guide 20 are arranged in the internal space 501 of the shell 50, wherein the blast fan 10 of this embodiment includes an outer shell and a rotating blade channel, and the air flow flows axially into the rotating blade channel and is thrown to the outer edge of the impeller under the action of centrifugal force, and is discharged from the air outlet to form a high wind pressure. Specifically, the air guide 20 is fixedly connected to the shell 50, and the blast fan 10 and the air guide 20 are assembled and arranged to output the air flow sucked in by the blast fan 10 to the air guide 20. Optionally, the blast fan 10 and the air guide 20 of this embodiment can be disassembled and assembled by the matching arrangement of studs and nuts. The studs can be arranged at multiple top corners of the air guide 20. Optionally, in other embodiments, the blast fan 10 and the air guide 20 can also be disassembled and assembled by the matching arrangement of snaps and slots, or the blast fan 10 and the air guide 20 can also be assembled by other detachable structures, which are not limited here.

[0049] Specifically, in this embodiment, there are two groups of air blowing fans 10 , and the two groups of air blowing fans 10 are symmetrically arranged on both sides of the air guide 20 .

[0050] like Figure 5 and Figure 6 As shown, the air guide member 20 extends in a direction away from the fixed assembly 30 to form an air guide space 21. The air guide space 21 of this embodiment and the internal space 501 mentioned above are two spaces. The blower fan 10 of this embodiment connects the air guide space 21 and the internal space 501 of the shell. The blower fan 10 is used to pass the gas in the internal space 501 into the air guide space 21.

[0051] In this embodiment, the two sets of blower fans 10 are disposed on opposite sides of the air guide space 21. Specifically, the two sets of blower fans 10 are mirror-imaged relative to the central axis of the air guide space 21. The blower fans 10 are disposed on the air guide 20, with the air outlets of the blower fans 20 facing the air inlet 201 of the air guide 20.

[0052] Specifically, an air duct 22 is provided in the air guide 20, and the area of the air guide space 21 close to the blower fan 10 forms an air inlet of the air duct 22, which is the air inlet 201 of the air guide 20. The air outlet of the blower fan 10 is set toward the air inlet 201, and can be specifically set in contact with the air inlet 201.

[0053] like Figure 6 As shown, a first air duct 221 and a second air duct 222 are provided in the air guide member 20 , and the first air duct 221 and the second air duct 222 are mirror-imaged relative to the central axis of the air guide space 21 .

[0054] Specifically, the first air duct 221 and the second air duct 222 are each composed of a plurality of U-shaped runways arranged in sequence, and the openings of the plurality of U-shaped runways constitute the first air inlet 201(a) of the first air duct 221 and the second air inlet 201(b) of the second air duct 222. The first air inlet 201(a) and the second air inlet 201(b) are respectively arranged on either side of the air guide space 21 in a direction perpendicular to the central axis of the air guide space 21.

[0055] At the same time, the two groups of blower fans 10 of this embodiment are relatively arranged on both sides of the wind guide space 21, so that the air outlets of the two groups of blower fans 10 are relatively arranged on both sides of the wind guide space 21, respectively abutting the first air inlet 201 (a) and the second air inlet 201 (b), and the air outlets of the two groups of blower fans 10 are connected to each other through the wind guide space 21.

[0056] Furthermore, the air duct 22 of this embodiment is a runway-type air guide channel. The wind blown out by the circumferential wind pressure of the air outlet of the blower fan 10 passes through the air guide 20 so that the blown wind is diverted to pass through each different annular runway cavity, that is, flows through different U-shaped runways to form a uniform wind pressure.

[0057] Optionally, in other embodiments, a partition may be provided in the air duct 22 to increase the distance of the wind flow so that the airflow flowing through the air duct 22 to the filter element 30 is uniform. The present application does not limit the specific shape of the air duct 22 as long as it can make the airflow through the air duct 22 smoother.

[0058] like Figure 3 As shown, the filter element 40 is arranged in the air guide space 21 and is arranged in contact with the air duct 22. The air flow generated by the inkjet assembly is sucked in by the blower fan 10 and guided to the filter element 40 through the air duct 22. The filter element 40 is used to filter the air flow entering the air guide space 21, specifically to filter and absorb the volatile compounds contained in the air flow.

[0059] Specifically, the filter element 40 of this embodiment includes activated carbon and filter cotton, with the ratio of the activated carbon area to the filter cotton area being greater than or equal to 90%. By evenly distributing the activated carbon throughout the filter cotton, this embodiment effectively adsorbs volatile compounds in the airflow passing through the filter element 40 onto the activated carbon, thereby enhancing air filtration effectiveness.

[0060] like Figure 10As shown, the fixing assembly 30 of this embodiment is arranged at the opening of the shell 50 and is detachably assembled with the air guide 20. The air guide 20 is arranged on the side of the fixing assembly 30 close to the inkjet assembly. Optionally, the air guide 20 and the fixing assembly 30 of this embodiment can be disassembled and assembled by the matching arrangement of studs and nuts. The studs can be arranged at multiple top corners of the air guide 20. Optionally, in other embodiments, the air guide 20 and the fixing assembly 30 can also be disassembled and assembled by the matching arrangement of buckles and slots, or the air guide 20 and the fixing assembly 30 can also be assembled by other detachable structures, which are not limited here.

[0061] When the fixing component 30 and the shell 50 are in an assembled state, the fixing component 30 is arranged on the side of the filter element 40 away from the air duct 22, and the fixing component 30 changes the direction of the airflow after filtering treatment to control the circulation of the airflow in the internal space 501 of the shell 50; when the fixing component 30 and the shell 50 are in a disassembled state, the airflow after filtering treatment flows to the outside.

[0062] like Figure 7 As shown, the fixing assembly 30 of this embodiment includes a first fixing plate 31 and a second fixing plate 32 , and the second fixing plate 32 and the first fixing plate 31 are assembled.

[0063] like Figure 4 As shown, the first fixing plate 31 and the air guide member 20 are assembled and arranged through a locking structure, and a guide gap 33 is formed between the first fixing plate 31 and the filter member 40, and the guide gap 33 changes the flow direction of the airflow.

[0064] like Figure 7 As shown, a support bar 311 is provided on one side of the first fixing plate 31 close to the air guide 20, and the support bar 311 abuts against the filter 40 to form a guide gap 33 between the first fixing plate 31 and the filter 40. Figure 8 As shown, a guide opening 321 is provided on one side of the second fixing plate 32 close to the first fixing plate 31 , and the guide opening 321 is connected to the guide gap 33 .

[0065] Specifically, the first fixing plate 31 and the second fixing plate 32 of this embodiment are both removable. When the first fixing plate 31 and the second fixing plate 32 are assembled with the air guide 20 and the housing 50, a sealed space is formed inside the inkjet printer 1. Liquid ink produced by the inkjet assembly circulates within the inkjet printer 1 along with the airflow. Specifically, the airflow circulates within the interior space 501 of the housing 50 and the air guide space 21 of the air guide 20. The blower fan 10, the air guide 20, and the filter 40 filter the airflow containing volatile compounds within the inkjet printer 1, thereby reducing the VOC value of the air inside the inkjet printer 1.

[0066] When at least one of the first fixing plate 31 or the second fixing plate 32 is in a disassembled state, the interior of the inkjet printer 1 forms an open air circulation connection with the external environment. In this embodiment, by adding a blower fan 10, an air guide 20 and a filter 40 to the air circulation, the air flow containing volatile compounds can be filtered through the filter 40, so that the VOC value of the internal gas of the inkjet printer 1 is reduced and then diffused into the air of the external environment. At the same time, the internal gas of the inkjet printer 1 will diffuse into the external air to form an external circulation, that is, the gas completes the circulation flow between the internal space 501 of the shell 50, the air guide space 21 of the air guide 20 and the outside.

[0067] Specifically, the air guide 20 of this embodiment is arranged at the top of the internal space 501 of the housing 50, and the blower fan 10 is arranged near the air outlet of the inkjet assembly. Since the air outlet of the blower fan 10 abuts the air inlet 201 of the air duct 22, the air inlet 201 of the air duct 22 can be arranged near the air outlet of the inkjet assembly. At the same time, this embodiment arranges the inkjet assembly at the top of the internal space 501 of the housing 50. Since the liquid ink produced by the inkjet assembly has a certain mass and falls due to gravity during the spraying process, this embodiment arranges the inkjet assembly near the top plate 51, or is fixed to the top plate 51, and the air inlet 201 of the air duct 22 is arranged near the inkjet assembly, so that most of the gas just sprayed can be sucked in by the blower fan 10, effectively improving the air filtration effect, and the inkjet falls with gravity and will not be deposited on the inkjet assembly, affecting the inkjet effect.

[0068] Optionally, in one embodiment, the air guide 20 and the inkjet assembly of this embodiment can be arranged in the same plane perpendicular to the fixed assembly 30, which can ensure that when the inkjet assembly sprays liquid ink, the blower fan 10 can receive the corresponding airflow to the greatest extent, thereby improving the suction of the airflow and improving the filtering effect of the airflow.

[0069] This application utilizes a blower fan 10 for use with an air guide 20 and a filter 40. The high wind pressure generated by the blower fan 10 evenly blows the airflow containing volatile compounds into the air duct 22 of the air guide 20. Because the air duct 22 is positioned in contact with the filter 40, the airflow flowing into the air duct 22 is also evenly blown toward the filter 40. This further filters and absorbs the volatile compounds, improving the filtration effect and effectively reducing the VOC level in the inkjet printer 1. Furthermore, this application utilizes the detachable first and second fixing plates 31, 32 to form internal or external circulation in the inkjet printer 1, adapting to the varying requirements of different environments.

[0070] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An inkjet printer, characterized in that: include: a housing, wherein the housing is formed with an interior space and an opening communicating between the exterior and the interior space; an inkjet assembly, the inkjet assembly being disposed in the housing and located in the internal space; an air guide member disposed in the internal space and fixedly connected to the housing, the air guide member extending in a direction away from the inkjet assembly to form an air guide space, the air guide member being provided with an air inlet, the air guide space being in communication with the internal space through the air inlet; an air blast fan, the air blast fan being arranged on the air guide member, and the air outlet of the air blast fan being arranged toward the air inlet; A filter element is arranged in the air guide space; A fixing assembly is provided at the opening and is detachably assembled with the air guide member; wherein, The blower fan is used to pass the gas in the internal space into the wind guide space, and the filter element is used to filter the airflow entering the wind guide space; when the fixing component and the shell are in an assembled state, the gas circulates in the internal space and the wind guide space; when the fixing component and the shell are in a disassembled state, the gas circulates between the internal space, the wind guide space and the outside.

2. The inkjet printer according to claim 1, wherein The air guide is arranged at the top of the internal space, and the air blowing fan is arranged close to the air outlet of the inkjet assembly, so that the air inlet is arranged close to the air outlet of the inkjet assembly.

3. The inkjet printer according to claim 1, wherein There are two groups of blower fans, which are relatively arranged on both sides of the air guide space, so that the air outlets of the two groups of blower fans are relatively arranged on both sides of the air guide space and are connected to each other through the air guide space.

4. The inkjet printer according to claim 3, wherein: The two groups of blower fans are mirror-imaged relative to the central axis of the air guide space.

5. The inkjet printer according to claim 4, wherein A first air duct and a second air duct are arranged in the air guide member, and the first air duct and the second air duct are mirror-imaged relative to the central axis; wherein the first air inlet of the first air duct and the second air inlet of the second air duct are respectively arranged on both sides of the air guide space along a direction perpendicular to the central axis.

6. The inkjet printer according to claim 1, wherein The fixing assembly includes a first fixing plate, the first fixing plate and the air guide member are assembled through a locking structure, a guide gap is formed between the first fixing plate and the filter member, and the guide gap changes the flow direction of the airflow.

7. The inkjet printer according to claim 6, wherein: A support bar is provided on one side of the first fixing plate close to the air guide member, and the support bar abuts against the filter member to form the flow guide gap between the first fixing plate and the filter member.

8. The inkjet printer according to claim 6, wherein: The fixing assembly further includes a second fixing plate, which is assembled with the first fixing plate. A guide opening is provided on a side of the second fixing plate close to the first fixing plate, and the guide opening is connected to the guide gap.

9. The inkjet printer according to claim 1, wherein The filter element comprises activated carbon and filter cotton, and the ratio of the area of the activated carbon to the area of the filter cotton is greater than or equal to 90%.

10. The inkjet printer according to claim 1, wherein The shell includes a top plate, a bottom plate and a side plate, the top plate and the bottom plate are arranged opposite to each other, the fixing assembly is arranged opposite to the side plate, and the fixing assembly is assembled with the top plate and the bottom plate respectively, and the side plate is assembled with the top plate and the bottom plate respectively.

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