CN207955017U - Ink-jet printer - Google Patents
Ink-jet printer Download PDFInfo
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- CN207955017U CN207955017U CN201820221361.2U CN201820221361U CN207955017U CN 207955017 U CN207955017 U CN 207955017U CN 201820221361 U CN201820221361 U CN 201820221361U CN 207955017 U CN207955017 U CN 207955017U
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- ink
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- jet printer
- protruding portion
- groove
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Abstract
The utility model is related to a kind of ink-jet printers, and wherein ink-jet printer includes ink tank, frame section and covering part.Wherein ink tank includes body part, refilling portion and atmosphere portion.Body part is configured to accommodate ink, and refilling portion makes to be connected to outside inside body part, and atmosphere portion has atmosphere connection port, and atmosphere connection port makes inside body part and atmosphere.Frame section surrounds ink tank, and frame section is provided at least part of groove for surrounding atmosphere portion.Covering part is covered on groove, and covering part has the inner surface towards inside grooves, is provided with from inner surface protruding portion closed continuously in a circumferential outstanding on inner surface, protruding portion limits accommodation space, and atmosphere connection port is located in accommodation space.Ink-jet printer according to the present utility model can effectively prevent the foreign matters such as dust, sand to enter atmosphere connection port and influence the normal use of ink-jet printer.
Description
Technical field
The utility model is related to printing device technical fields, and in particular, to a kind of ink-jet printer.
Background technology
Ink-jet printer is printed by spraying ink from record portion to recording medium (such as paper sheet for printing).
Fig. 1 schematically shows an example of existing ink-jet printer 1.Hereinafter, for ease of description, so that
User use ink-jet printer when location on the basis of, by direction of the ink-jet printer towards user be defined as " preceding ",
Direction is defined as " rear " on the other hand, and the left-hand side of user is defined as " left side ", and the right-hand side of user is " right side ".
As shown in Figure 1, ink-jet printer 1 includes printer body 19 and is arranged ink tank in 19 side of printer body
20.Ink tank 20 is fixedly mounted in certain side (for example, forward position shown in FIG. 1 by right end) of printer body 19, and
And it accommodates to be supplied to the ink of printer body 19.
Fig. 2 schematically shows the schematic diagrames of existing ink tank 20.As shown in Fig. 2, ink tank 20 include body part 21 with
And the refilling portion 28 being arranged above body part 21 and atmosphere portion 30.Body part 21 is for accommodating to be supplied to printer sheet
The ink of body 19.Refilling portion 28 includes the ink filling port 29 being connected to the inside of body part 21, with convenient for users to passing through ink filling port
29 inject ink into the inside of body part 21.Atmosphere portion 30 includes atmosphere connection port 31, and atmosphere connection port 31 makes ontology
The inside in portion 21 and atmosphere, so that the pressure in body part 21 is consistent with atmospheric pressure.
As shown in figure 3, ink-jet printer 1 includes four ink tanks 20 arranged in left-right direction.This four ink tanks 20 can be with
Ink for accommodating different colours, can be used for example black, cyan, magenta and yellow (CMYK) four kinds of colors ink
Recording colour image can be used for the ink for accommodating same color (such as black).
Further, ink-jet printer 1 further includes frame section 87, and frame section 87 surrounds ink tank 20.It is provided on frame section 87
Generally rectangular groove 86, groove 86 surround at least part in the atmosphere portion 30 of four ink tanks 20.Inkjet printing
Machine 1 further includes covering part 85, and covering part 85 is covered on groove 86.It is formed in covering part 85 for being connect with groove 86
The joint portion 10 of conjunction portion (not shown) engagement, and form at least part of opening 11 at the joint portion 10.
When ink-jet printer 1 is in dust storm or the more environment of dust, the foreign matters such as dust storm or dust are easily from covering
Opening 11 in portion 85 enters in groove 86, hence into atmosphere connection port 31.And when atmosphere connection port 31 is sealed by foreign matter
When, then on the one hand the ink in black bottle can be caused to be injected into ink tank 20 by ink filling port 29 with can not be successfully, additionally had very much
The ink being likely to result in ink tank 20 can not normally be supplied to the record portion (not shown) of ink-jet printer 1, to cause
Ink-jet printer 1 can not normal use.
Therefore, it is necessary to a kind of ink-jet printer be proposed, to solve to ask more than existing in the prior art at least partly
Topic.
Utility model content
In order to solve the above problems at least partly, the utility model provides a kind of ink-jet printer, and the ink-jet is beaten
Print machine includes body part, refilling portion and atmosphere portion.The body part is configured to accommodate ink.The refilling portion makes institute
It states and is connected to outside inside body part.There is atmosphere connection port, the atmosphere connection port to make the ontology in the atmosphere portion
Portion inside and atmosphere.The frame section surrounds the ink tank, and the frame section, which is provided with, surrounds the atmosphere portion
At least part of groove.The covering part is covered on the groove, and the covering part has towards the inside grooves
Inner surface is provided with from inner surface protruding portion closed continuously in a circumferential outstanding, the protruding portion on the inner surface
Accommodation space is limited, the atmosphere connection port is located in the accommodation space.
Ink-jet printer according to the present utility model, it is closed continuously in a circumferential by being arranged on the inner surface of covering part
Protruding portion, and atmosphere connection port is made to be located in the accommodation space that protruding portion limits, dust, sand etc. can be effectively prevent
Foreign matter enters atmosphere connection port and influences the normal use of ink-jet printer.Ink-jet printer structure letter according to the present utility model
Single, easily manufactured and cost is relatively low.
Optionally, in the state that the covering part covers the groove, the axial length L of the protruding portion is more than described
Inner surface to the atmosphere connection port distance D1 and less than the inner surface to the bottom surface of the groove distance D2.The party
On the one hand case can effectively prevent the foreign matters such as dust, sand to enter atmosphere connection port, on the other hand can connect in order to air
Port and extraneous connection.
Optionally, the ink-jet printer includes that multiple ink tanks and multiple air corresponding with the multiple ink tank connect
Logical portion.The program can realize colour print by being injected separately into the ink of different colours into multiple ink tanks.
Optionally, be provided with multiple protruding portion on the inner surface, the quantity of the multiple protruding portion with it is the multiple big
The quantity of gas interconnecting part corresponds to, and the multiple protruding portion limits multiple accommodation spaces, the multiple atmosphere respectively
Multiple atmosphere connection ports in portion are located in the multiple accommodation space.The program can effectively prevent such as dust, sand
Equal foreign matters enter atmosphere connection port, and the program is simple in structure, be convenient for manufacture and cost is relatively low.
Optionally, multiple protruding portion is provided on the inner surface, the quantity of the multiple protruding portion is less than the multiple
The quantity in atmosphere portion, the multiple protruding portion limit multiple accommodation spaces, the multiple atmosphere portion respectively
Multiple atmosphere connection ports be located in the multiple accommodation space.The program can effectively prevent dust, sand etc.
Foreign matter enters atmosphere connection port, and the program is simple in structure, be convenient for manufacture and cost is relatively low.
Optionally, there are one protruding portions, one protruding portion to limit a receiving for setting on the inner surface
Multiple atmosphere connection ports in space, the multiple atmosphere portion are respectively positioned in one accommodation space.The program can have
Effect prevents the foreign matters such as dust, sand from entering atmosphere connection port, and the program it is simple in structure, convenient for manufacture and cost compared with
It is low.
Optionally, the lower end of the protruding portion is downwardly extending extension, and the extension is formed with recess.The program
It can be in communication with the outside by the recess in order to atmosphere connection port by the way that recess is arranged on extension.
Optionally, in the state that the covering part covers the groove, the lower face of the extension and the groove
Bottom surface contact.The program can further effectively prevent the foreign matters such as dust, sand to enter atmosphere connection port, and
The program is simple in structure, be convenient for manufacture and cost is relatively low.
Optionally, it is provided with ink absorber in the groove.The program can effectively will be unexpectedly from atmosphere connection port
The ink absorption of leakage, and then the accumulation ink that can effectively prevent in groove is excessive and pollute the danger of surrounding enviroment.
Description of the drawings
From below in conjunction with the accompanying drawings in the description of the utility model exemplary embodiment, the utility model above-mentioned and its
Its aspect will become apparent and be easier to understand, in the accompanying drawings:
Fig. 1 is the stereogram of existing ink-jet printer.
Fig. 2 is the stereogram of the ink tank of the ink-jet printer in Fig. 1.
Fig. 3 is the stereogram of the ink tank and frame section of the ink-jet printer in Fig. 1, and wherein covering part is in disassembly status.
Fig. 4 is the front view of covering part shown in Fig. 3.
Fig. 5 is according to the ink tank of preferred embodiments of the present invention and the stereogram of frame section.
The sectional view that Fig. 6 cuts for the line A-A in Fig. 5 is shown first according to the present utility model preferably
A part for the ink-jet printer of embodiment.
Fig. 7 is the close-up schematic view of the part B in Fig. 6.
Fig. 8 is the stereogram according to the covering part of the ink-jet printer of first preferred embodiment of the utility model.
The sectional view that Fig. 9 cuts for the line A-A in Fig. 5 is shown second according to the present utility model preferably
A part for the ink-jet printer of embodiment.
Figure 10 is the stereogram according to the covering part of the ink-jet printer of second preferred embodiment of the utility model.
Third according to the present utility model is shown preferably in the sectional view that Figure 11 cuts for the line A-A in Fig. 5
A part for the ink-jet printer of embodiment.
Figure 12 is the stereogram according to the covering part of the ink-jet printer of the third preferred embodiment of the utility model.
The sectional view that Figure 13 cuts for the line A-A in Fig. 5 is shown 4th according to the present utility model preferably
A part for the ink-jet printer of embodiment.
Figure 14 is the close-up schematic view of the C portion in Figure 13.
Figure 15 is the stereogram according to the covering part of the ink-jet printer of the 4th preferred embodiment of the utility model.
Reference sign
1:Ink-jet printer
19:Printer body
20/120/220/320/420:Ink tank
21/121/221/321/421:Body part
28/128:Refilling portion
29/129:Ink filling port
30/130/230/330/430:Atmosphere portion
31/131/231/331/431:Atmosphere connection port
87/187/287/387/487:Frame section
86/186/286/386/486:Groove
85/185/285/385/485:Covering part
184/284/384/484:Inner surface
183/283/383/483:Protruding portion
182/282/382/482:Accommodation space
181/481:Bottom surface
480:Extension
479:Recess
178:Ink absorber
10:Joint portion
11:Opening
6:Paper feeding cassette
7:Output Tray
8:Operation panel
Specific implementation mode
In the following description, a large amount of concrete details are given more thoroughly to manage in order to provide to the utility model
Solution.It will be apparent, however, to one skilled in the art that the utility model embodiment may not need one or more
These a details and be carried out.In other examples, in order to avoid obscuring with the utility model embodiment, for
Some technical characteristics well known in the art are not described.
Preferred embodiments of the present invention are illustrated referring to the drawings.It should be noted that institute herein
Term "upper", "lower" and the similar statement used for illustrative purposes only, not limits.
Herein, such as ordinal number of " first " and " second " cited in the application is only to identify, without having
There are any other meaning, such as specific sequence etc..Moreover, for example, term " first component " itself does not imply that " second
The presence of part ", term " second component " do not imply that the presence of " first component " in itself.
The ink-jet printer of preferred embodiment according to the present utility model is described more fully below.According to the utility model
Ink-jet printer have with according to the roughly the same construction of the ink-jet printer 1 of background technology.Spray described in the utility model
Black printer can also have the function of the various work(such as image scanner, facsimile function, copy function in addition to printing function
Energy.About printing function, there can be the dual-side image writing function in the double-sided recording modes image of recording medium.Certainly, for
Whether have the function of being arbitrary other than printing function.
As shown in Figure 1, ink-jet printer 1 includes printer body 19 and ink tank 20.
Printer body 19 is generally in rectangular shape.It is provided in printer body 19 for providing recording medium
Paper feeding cassette 6 and Output Tray 7 for recording medium to be discharged.The note for including for example multiple nozzles is additionally provided in printer body 19
Record portion (not shown), record portion can be to recording medium jet inks.Being additionally provided in the front surface of printer body 19 can pivot
The operation panel 8 turned, configured with the display panel for showing various information and setting content and for executing on the operation panel 8
The operation button of various operations or input setting content.
The right front in printer body 19 is arranged in ink tank 20.It will be appreciated, of course, that according to actual needs, ink tank 20
It can also be arranged at the other positions of printer body 19.In addition, according to actual needs, ink tank 20 can be fixedly mount to
Printer body 19 can also be configured to be detachably mounted to printer body 19.
First embodiment
The ink-jet printer of first preferred embodiment according to the present utility model is carried out below in reference to Fig. 5-Fig. 8
Description.Other than the structure of ink tank, beaten according to the ink-jet of the ink-jet printer of first preferred embodiment and the prior art
Print machine 1 has same structure, therefore for simplicity, is only retouched below to ink tank and associated structure
It states.
As shown in Figure 5-Figure 7, in the present invention, ink-jet printer 1 it is (as shown in Figure 1) include four in left-right direction
The ink tank 120 of arrangement.This four ink tanks 120 can be used for accommodate different colours ink, can be used for example black, cyan,
The ink-mist recording coloured image of four kinds of colors of magenta and yellow (CMYK) can be used for accommodating same color (such as black)
Ink.
Ink tank 120 includes body part 121 and the refilling portion 128 being arranged on body part 121 and atmosphere portion 130.
Body part 121 is for accommodating to be supplied to the ink of printer body 19 (as shown in Figure 1).Refilling portion 128 is arranged in body part
It on 121 top surface and projects upwards, refilling portion 128 includes the ink filling port 129 being connected to the inside of body part 121, with convenient
User is injected ink by ink filling port 129 to the inside of body part 121.Atmosphere portion 130 is arranged in body part 121
It on top surface and projects upwards, atmosphere portion 130 includes atmosphere connection port 131, and atmosphere connection port 131 makes body part 121
Internal and atmosphere, so that the pressure in body part 121 is consistent with atmospheric pressure.
Further, ink-jet printer 1 (as shown in Figure 1) further includes frame section 187, and frame section 187 is covered in ink tank 120
It is external.The groove 186 substantially in rectangular shape is provided on frame section 187, groove 186 surrounds the air of four ink tanks 120
At least part of interconnecting part 130.Ink-jet printer 1 (as shown in Figure 1) further includes covering part 185, and covering part 185 is also substantially in
Rectangular shape, covering part 185 can be covered on groove 186.
With reference to Fig. 7 and Fig. 8, covering part 185 has inner surface 184, when covering part 185 is covered on groove 186, interior table
Face 184 towards groove 186 inside.It is provided on inner surface 184 from 184 protruding portion 183 outstanding of inner surface, 183 edge of protruding portion
Circumferentially continuous closing, that is to say, that protruding portion 183 is substantially in ring body shape.Protruding portion 183 limits accommodation space 182, works as covering
When portion 185 is covered on groove 186, atmosphere connection port 131 is located in accommodation space 182.
Preferably, multiple protruding portion 183 corresponding with the quantity in multiple atmosphere portions 130 is provided on inner surface 184,
Multiple protruding portion 183 limits multiple accommodation spaces 182, and multiple atmosphere connection ports 131 in multiple atmosphere portions 130 respectively
It is located in multiple accommodation space 182.For example, as shown in Figure 7 and Figure 8, in first preferred implementation of the utility model
In mode, four protruding portions 183 corresponding with the quantity in four atmosphere portions 130, four protrusions are provided on inner surface 184
Portion 183 limits four accommodation spaces 182 respectively, when covering part 185 is covered on groove 186, four atmosphere connection ports 131
It is located in four accommodation spaces 182.
As shown in fig. 7, in the state that covering part 185 is covered on groove 186, the axial length L of protruding portion 183 is more than
Inner surface 184 to atmosphere connection port 131 distance D1 and less than inner surface 184 to the bottom surface 181 of groove 186 distance D2.
On the one hand the program can effectively make protruding portion 183 cover atmosphere connection port 131, to prevent dust, sand etc. different
Object enters atmosphere connection port 131, on the other hand can also be convenient for atmosphere connection port 131 and extraneous connection.
Preferably, it is provided with ink absorber 178 in groove 186.Ink absorber 178 can be such as water-absorbing resin,
The water-absorbent materials such as sponge so as to the ink absorption for effectively leaking accident from atmosphere connection port 131, and then can effectively be prevented
Only the accumulation ink in groove 186 is excessive and pollute the danger of surrounding enviroment.
Ink-jet printer according to the present utility model, by being arranged continuously in a circumferential on the inner surface 184 of covering part 185
Closed protruding portion 183, and atmosphere connection port 131 is made to be located in the accommodation space 182 that protruding portion 183 limits, it can be effective
It prevents the foreign matters such as dust, sand from entering atmosphere connection port 131 and influences the normal use of ink-jet printer 1.
Second embodiment
Fig. 9 and Figure 10 schematically shows the ink-jet printer of the second preferred embodiment according to the present utility model
Ink tank.Other than the structure of covering part, according to the ink-jet printer of second embodiment have with according to first embodiment
The roughly the same construction of ink-jet printer, wherein the structure with identity function is endowed similar reference numeral.Here, only
Difference is described.
In the second embodiment of the utility model, multiple protruding portion is provided on the inner surface 284 of covering part 285
283, the quantity of multiple protruding portion 283 is less than the quantity in multiple atmosphere portions 230.Multiple protruding portion 283 limits more respectively
Multiple atmosphere connection ports 231 of a accommodation space 282, multiple atmosphere portions 230 are located in multiple accommodation spaces 282.
Specifically, as shown in Figure 9 and Figure 10, it is arranged there are two protruding portion 283 on the inner surface 284 of covering part 285, and four
There are four atmosphere portions 230 for tool altogether for a ink tank 220.Two protruding portions 283 limit two accommodation spaces 282 respectively, four
Four atmosphere connection ports 231 in atmosphere portion 230 are located in two accommodation spaces 282.For example, in illustrated embodiment
In, there are two atmosphere connection ports 231 for receiving in each accommodation space 282.It is appreciated that in other unshowned embodiment party
In formula, an atmosphere connection port 231 can also be accommodated in an accommodation space 282, three are accommodated in another accommodation space 282
Atmosphere connection port 231.Alternatively, in unshowned other embodiment, three protruding portions 283, three protrusions can also be set
Portion 283 limits three accommodation spaces 282 respectively, and four atmosphere connection ports 231 in four atmosphere portions 230 are located at three
In a accommodation space 282, that is, accommodate two atmosphere connection ports 231, other two accommodation space 282 in an accommodation space 282
It is middle to accommodate an atmosphere connection port 231 respectively.The program can effectively prevent the foreign matters such as dust, sand to enter atmosphere
Mouth 231, and the program is simple in structure, be convenient for manufacture and cost is relatively low.
Third embodiment
Figure 11 and Figure 12 schematically shows the ink-jet printer of third preferred embodiment according to the present utility model
Ink tank.Other than the structure of covering part, according to the ink-jet printer of third embodiment have with according to the first embodiment party
The roughly the same construction of the ink-jet printer of formula, wherein the structure with identity function is endowed similar reference numeral.Here,
Only difference is described.
In the third embodiment of the utility model, a protruding portion is provided only on the inner surface 384 of covering part 385
383, a protruding portion 383 limits an accommodation space 382, and multiple atmosphere connection ports 331 in multiple atmosphere portions 330 are equal
In an accommodation space 382.Specifically, in the shown embodiment, four air in four atmosphere portions 330 connect
Port 331 is respectively positioned in an accommodation space 382.It is big that the program can effectively prevent the foreign matters such as dust, sand to enter
Gas communication port 331, and the program is simple in structure, be convenient for manufacture and cost is relatively low.
4th embodiment
Figure 13-Figure 15 schematically shows the ink-jet printer of the 4th preferred embodiment according to the present utility model
Ink tank.Other than the structure of covering part, according to the ink-jet printer of the 4th embodiment have with according to the first embodiment party
The roughly the same construction of the ink-jet printer of formula, wherein the structure with identity function is endowed similar reference numeral.Here,
Only difference is described.
As shown in Figure 14 and Figure 15, the lower end of protruding portion 483 is downwardly extending extension 480.It is covered in covering part 485
In the state of groove 486, the lower face of extension 482 is contacted with the bottom surface 481 of groove 486, and the program can further have
Prevent the foreign matters such as dust, sand from entering atmosphere connection port 431 to effect.Preferably, extension 480 is formed with recess 479, should
The setting of recess 479 can be in communication with the outside convenient for atmosphere connection port 431 by the recess 479.
Unless otherwise defined, the technology of technical and scientific term used herein and the technical field of the utility model
The normally understood meaning of personnel is identical.Term used herein is intended merely to describe specifically to implement purpose, it is not intended that limit
The utility model processed.Terms such as herein presented " components " can both indicate single part, can also indicate multiple
The combination of part.The terms such as herein presented " installation ", " setting " can both indicate that a component was attached directly to separately
One component can also indicate that a component is attached to another component by middleware.Herein in one embodiment
The feature of description can be applied to another embodiment in combination individually or with other feature, unless this feature is another at this
It is not suitable for or is otherwise noted in a embodiment.
The utility model is illustrated by the above embodiment, but it is to be understood that, the above embodiment
It is only intended to the purpose illustrated and illustrated, and is not intended to limit the invention within the scope of described embodiment.This
Outside it will be appreciated by persons skilled in the art that the utility model is not limited to the above embodiment, according to the utility model
Introduction can also make more kinds of variants and modifications, it is claimed that these variants and modifications all fall within the utility model
Within range.
Claims (9)
1. a kind of ink-jet printer, which is characterized in that the ink-jet printer includes:
Ink tank, the ink tank include:
Body part, the body part are configured to accommodate ink;
Refilling portion, the refilling portion make to be connected to outside inside the body part;
Atmosphere portion, the atmosphere portion have an atmosphere connection port, the atmosphere connection port make inside the body part with
Atmosphere;
Frame section, the frame section surround the ink tank, and the frame section, which is provided with, surrounds at least the one of the atmosphere portion
Partial groove;And
Covering part, the covering part are covered on the groove, and the covering part has the inner surface towards the inside grooves,
It is provided on the inner surface from inner surface protruding portion closed continuously in a circumferential outstanding, the protruding portion limits appearance
Receive space, the atmosphere connection port is located in the accommodation space.
2. ink-jet printer according to claim 1, which is characterized in that cover the state of the groove in the covering part
Under, the axial length L of the protruding portion is more than the inner surface to the distance D1 of the atmosphere connection port and is less than the interior table
Face to the bottom surface of the groove distance D2.
3. ink-jet printer according to claim 1, which is characterized in that the ink-jet printer include multiple ink tanks and with
The corresponding multiple atmosphere portions of the multiple ink tank.
4. ink-jet printer according to claim 3, which is characterized in that it is provided with multiple protruding portion on the inner surface,
The quantity of the multiple protruding portion is corresponding with the multiple quantity in atmosphere portion, and the multiple protruding portion limits more respectively
Multiple atmosphere connection ports of a accommodation space, the multiple atmosphere portion are located in the multiple accommodation space.
5. ink-jet printer according to claim 3, which is characterized in that it is provided with multiple protruding portion on the inner surface,
The quantity of the multiple protruding portion is less than the quantity in the multiple atmosphere portion, and the multiple protruding portion limits multiple respectively
Multiple atmosphere connection ports of the accommodation space, the multiple atmosphere portion are located in the multiple accommodation space.
6. ink-jet printer according to claim 3, which is characterized in that protruding portion there are one settings on the inner surface,
One protruding portion limits an accommodation space, and multiple atmosphere connection ports in the multiple atmosphere portion are respectively positioned on
In one accommodation space.
7. ink-jet printer according to claim 1, which is characterized in that the lower end of the protruding portion, which is downwardly extending, prolongs
Extending portion, the extension are formed with recess.
8. ink-jet printer according to claim 7, which is characterized in that cover the state of the groove in the covering part
Under, the lower face of the extension is contacted with the bottom surface of the groove.
9. ink-jet printer according to claim 1, which is characterized in that be provided with ink absorber in the groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201820221361.2U CN207955017U (en) | 2018-02-07 | 2018-02-07 | Ink-jet printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820221361.2U CN207955017U (en) | 2018-02-07 | 2018-02-07 | Ink-jet printer |
Publications (1)
Publication Number | Publication Date |
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CN207955017U true CN207955017U (en) | 2018-10-12 |
Family
ID=63738321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201820221361.2U Active CN207955017U (en) | 2018-02-07 | 2018-02-07 | Ink-jet printer |
Country Status (1)
Country | Link |
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CN (1) | CN207955017U (en) |
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2018
- 2018-02-07 CN CN201820221361.2U patent/CN207955017U/en active Active
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