CN103240997A - One-way valve and manufacturing method thereof as well as ink box and manufacturing method thereof - Google Patents
One-way valve and manufacturing method thereof as well as ink box and manufacturing method thereof Download PDFInfo
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- CN103240997A CN103240997A CN 201210023934 CN201210023934A CN103240997A CN 103240997 A CN103240997 A CN 103240997A CN 201210023934 CN201210023934 CN 201210023934 CN 201210023934 A CN201210023934 A CN 201210023934A CN 103240997 A CN103240997 A CN 103240997A
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Abstract
The invention provides a one-way valve and a manufacturing method thereof as well as an ink box and a manufacturing method thereof. The one-way valve comprises a valve body formed by an elastic thin wall, wherein an opening is formed in one end of the valve body; a valve cavity communicated with the opening is arranged inside the valve body, and a cutting opening penetrating the inner surface and the outer surface of a side wall is formed in the side wall of the valve body; and an oxidation layer formed by oxidation of calcium chloride solution is formed on the section of the cutting opening. The manufacturing method for the one-way valve comprises the following steps: hot pressing is performed to form the valve body of the one-way valve, the opening is formed in one end of the valve body, and the valve cavity communicated with the opening is arranged inside the valve body; the cutting opening is formed by cutting in the side wall of the valve body, and penetrates through the inner surface and the outer surface of the side wall; and the one-way valve with the cutting opening is placed in 5% of calcium chloride solution for immersion for the predetermined time, and then the one-way valve is taken out from the solution, and dried in air. According to the invention, bonding of the cutting opening of the one-way valve can be greatly reduced, normal use of the one-way valve can be ensured, production efficiency of the one-way valve is improved, and production cost is reduced.
Description
Technical field
The present invention relates to the printing field, especially relate to a kind of print cartridge on the ink-jet printer and manufacture method of this print cartridge manufacture method, the employed check valve of print cartridge and this check valve of being installed in.
Background technology
Ink-jet printer is common printer, for modern office provides great convenience.Ink-jet printer uses the print cartridge that accommodates ink to spray ink as consumable container to paper, to form literal or the pattern that needs printing at paper.
Referring to Fig. 1, existing a kind of color inkjet printer has casing 11, and ink-jet printer shown in Figure 1 has omitted the supporting plate of casing 11.Be provided with the movement 12 of ink-jet printer in the casing 11, and be provided with a slide bar 20, print word car 14 and under the drive of motor (invisible among Fig. 1), move back and forth along slide bar 20.Print in the word car 14 and be provided with keyset (invisible among Fig. 1), keyset is electrically connected with movement 12 by winding displacement 13.Print word car 14 and have cavity, a plurality of print cartridges 15 removably are installed in the cavity, accommodate the ink of different colours in the different print cartridges 15.
Referring to Fig. 2, print cartridge 15 has housing 16, and housing 16 surrounds the cavity that holds ink, and the lower end of cavity is provided with ink outlet port 17, and the ink in the cavity flows out by ink outlet port 17, and to the ink supply pin ink supply of printing word car 14.On the outer wall of print cartridge 15 housings 16 chip piece 18 is installed, chip 18 has substrate, and a side of substrate is provided with a plurality of electric contacts 19, is used for being electrically connected with keyset.The opposite side of substrate is provided with the electronic module (invisible among Fig. 2) that is electrically connected with electric contact 19.In addition, the top of housing 16 is provided with pore 30, and pore 30 is communicated with cavity, and air outside can enter in the cavity by pore 30.
The cavity of print cartridge 15 is divided into ink storage chamber and ink supply chamber, and the volume of ink storage chamber is bigger, is used for storage ink, and provides ink to ink outlet port 17, and the ink supply chamber is usually located at the lower end of ink storage chamber, and volume is less.Ink in ink outlet port 17 is back in the ink storage chamber, and the control ink flows to the flow of ink outlet port 17 from ink storage chamber, usually between ink storage chamber and ink outlet port 17 check valve is set, ink storage chamber, ink outlet port 17 can be the Chinese invention patent application of CN1459375A and the Chinese invention patent application that publication number is CN101041295A with reference to publication number with the structure of check valve.
The structure of existing a kind of check valve such as Fig. 3 are to shown in Figure 6, this check valve 21 has a roughly cylindrical valve body 22, valve body 22 has valve casing, valve casing is the thin-walled that elastomeric material is made, as the thin-walled of being made by silica gel or rubber, one end of valve casing is uncovered, and this is uncovered to be fluid inlet 23, and the other end of valve body 22 is airtight.Valve body 22 surrounds a valve pocket 24, and valve pocket 24 is communicated with fluid inlet 23.When check valve 21 was installed between ink storage chamber and the ink outlet port 17, fluid inlet 23 was towards the ink storage chamber setting, so the ink in the ink storage chamber can flow in the valve pocket 24 by fluid inlet 23.
Sidewall at valve body 22 is cut open an otch 25, and as shown in Figure 5, otch 25 is parallel to the axis of check valve 21, and runs through valve body 22 inside surface of side wall and outer surface, and otch 25 is positioned at valve body 22 near lower end.
Hydraulic pressure difference is less than predetermined value in ink outlet port 17 and ink storage chamber, during as 0.1 handkerchief, and otch 25 closures, ink can not flow to ink outlet port 17 by otch 25.After ink flowed out from ink outlet port, hydraulic pressure reduced in the ink outlet port 17, and ink storage chamber hydraulic pressure is greater than the hydraulic pressure of ink outlet port 17, in hydraulic pressure difference during greater than predetermined value, otch 25 opens, and ink flows to ink outlet port 17 from valve pocket 24, until the difference of the hydraulic pressure of the hydraulic pressure of ink storage chamber and ink outlet port 17 less than predetermined value.
In addition, the part print cartridge also arranges pressure release passage between ink storage chamber and ink supply chamber, the check valve 21 of a similar structures is installed in pressure release is sensible, as publication number be CN1459375A the Chinese invention patent application third and fourth, the structure that discloses of six embodiment, the fluid inlet 23 of check valve 21 arranges towards the ink supply chamber, and otch 25 is towards the ink storage chamber setting.When ink in the ink supply chamber after ink outlet port flows out, air flows in the ink supply chamber from ink outlet port 17, and check valve 21 two ends air pressure are uneven and produce pressure reduction, and air flows in the valve pocket 24 from the ink supply chamber, otch 25 is pushed open and is flow in the ink storage chamber by air, makes roughly balance of ink storage chamber and ink supply chamber air pressure.
And, between the pore 30 of print cartridge and the ink storage chamber check valve 21 is set also, be the structure that the 5th embodiment of the Chinese invention patent application of CN101041295A discloses as publication number, the fluid inlet of check valve 21 arranges towards pore 30, otch is towards the ink storage chamber setting, when the ink storage chamber internal gas pressure was lower than external pressure, air outside flow to ink storage chamber through check valve 21, to keep roughly balance of print cartridge 15 cavity inner and outer air pressures.
Because check valve 21 is made by materials such as silica gel or rubber, the tangent plane of otch 25 can be at short notice oxidation and bonding again easily, the bonding phenomenon takes place, in case the bonding phenomenon takes place in otch 25, often cause when check valve sidewall inside and outside differential pressure reaches predetermined value, fluid such as ink or air can't be pushed otch 25 open, only ink or air just can be pushed otch 25 open when check valve sidewall inside and outside differential pressure reaches 2 times of predetermined value or 3 times, this has departed from the designing requirement of check valve 21, influence the proper flow of ink or air, and influence the work of print cartridge 15.
Therefore, making check valve 21 is to coat silicone oil at otch 25 places usually after cutting otch 25 and the phenomenon of bonding occurs to prevent otch 25.But this method needs operating personnel manually to smear silicone oil at otch 25 places, and operating efficiency is low, causes production cost higher.And, owing to smear silicone oil and occur easily smearing inhomogeneous phenomenon, causing smearing the phenomenon that otch 25 bondings still can appear in otch behind the silicone oil, product percent of pass is lower.If the silicone oil of smearing is more, then cause silicone oil to dissolve in the ink easily, influence the quality of ink, also have influence on the quality of printing.
Summary of the invention
First purpose of the present invention provides a kind of otch and is difficult for bonding and the higher check valve of production efficiency.
Second purpose of the present invention provides a kind of otch bonding and higher check valve manufacture method of production efficiency effectively avoided.
The 3rd purpose of the present invention provides a kind of print cartridge of avoiding silicone oil to dissolve in the ink and having the check valve of the difficult bonding of otch.
The 4th purpose of the present invention provides a kind of manufacture method of above-mentioned print cartridge.
For realizing the first above-mentioned purpose, check valve provided by the invention has valve body, valve body has the valve casing that elastic thin-wall forms, one end of valve casing is uncovered, be provided with in the valve body and the uncovered valve pocket that is communicated with, and offer the otch that runs through side wall inner surfaces and outer surface on the sidewall of valve body, wherein, the oxide layer that has the calcium chloride solution oxidation to form on the tangent plane of otch.
By such scheme as seen, calcium chloride solution can oxidation form calcium carbonate in air, because calcium carbonate is decorating film matter, can avoid otch to bond because of oxidation like this.And when making check valve, only need be after cutting otch, with check valve be placed on soak certain hour in the calcium chloride solution after, oxidation gets final product in air, do not need a large amount of personnel to smear the silicone oil operation, production efficiency is higher, thereby reduces the production cost of check valve.
For realizing the second above-mentioned purpose, check valve manufacture method provided by the invention comprises that hot pressing forms the valve body of check valve, valve body has the valve casing that elastic thin-wall forms, one end of valve casing is uncovered, is provided with in the valve body and the uncovered valve pocket that is communicated with, and cuts a kerf at the sidewall of valve body, otch runs through side wall inner surfaces and outer surface, and the check valve that will have an otch takes out from solution and handles at air drying after being placed on and soaking the scheduled time in 5% the calcium chloride solution.
By such scheme as seen, after check valve is cut open otch, carry out drying after being immersed in calcium chloride solution in air, the calcium chloride solution oxidation forms calcium carbonate in the dry run, namely form the calcium carbonate of solid shape at the tangent plane place of otch, thereby and avoid the self-closing work that influences check valve of incision.And the manufacturing process of check valve is simple, the production efficiency height, and production cost is low.
A preferred scheme is that the above-mentioned scheduled time is 20 minutes.Like this, check valve in calcium chloride solution soak time can be not long can be not too short yet, guaranteeing has enough calcium chloride solution oxidations to form calcium carbonate in the tangent plane of otch.
Further scheme is, when check valve is immersed in the calcium chloride solution, calcium chloride solution is carried out stir process.
This shows, when soaking check valve, constantly stir calcium chloride solution, be conducive to guarantee that incision can oxidation form calcium carbonate between the tangent plane that calcium chloride solution penetrates into otch.
For realizing the 3rd above-mentioned purpose, print cartridge provided by the invention has housing, and housing surrounds the cavity that holds ink, and the lower end of cavity is provided with ink outlet port, check valve is installed in the cavity, check valve has valve body, and valve body has the valve casing that elastic thin-wall forms, and an end of valve casing is uncovered, be provided with in the valve body and the uncovered valve pocket that is communicated with, and offer the otch that runs through side wall inner surfaces and outer surface on the sidewall of valve body, wherein, the oxide layer that is formed by the calcium chloride solution oxidation is arranged on the tangent plane of otch.
By such scheme as seen, the check valve incision has the oxide layer by calcium chloride solution, and main component is calcium carbonate, because calcium carbonate is the decorating film body, can prevent that otch is because of the oxidation phenomenon that bonds.Because check valve uses the oxide of calcium chloride solution to avoid bonding, therefore need not to smear silicone oil, can avoid silicone oil to dissolve in the ink like this and influence print quality.
For realizing the 4th above-mentioned purpose, print cartridge manufacture method provided by the invention comprises that hot pressing forms the housing of print cartridge, housing surrounds be used to the cavity that holds ink, the lower end of cavity is provided with ink outlet port, hot pressing forms the valve body of check valve, valve body has the valve casing that elastic thin-wall forms, one end of valve casing is uncovered, be provided with in the valve body and the uncovered valve pocket that is communicated with, cut a kerf at the sidewall of valve body, otch runs through side wall inner surfaces and outer surface, and, the check valve that will have an otch takes out from solution and handles at air drying after being placed on and soaking the scheduled time in 5% the calcium chloride solution, at last check valve is installed in the cavity.
This shows, after check valve cuts otch, it is immersed in the scheduled time in the calcium chloride solution, and in air oxidation drying, can form the oxide layer of calcium chloride solution in incision, its main component is calcium carbonate, because calcium carbonate is decorating film matter, can effectively avoid the otch bonding, and the production efficiency height of check valve, production cost is low, thereby reduces the production cost of print cartridge.
Description of drawings
Fig. 1 is the structure chart of existing a kind of ink-jet printer.
Fig. 2 is the structure enlarged drawing of existing print cartridge.
Fig. 3 is the structure enlarged drawing of existing check valve.
Fig. 4 is the structure enlarged drawing at existing another visual angle of check valve.
Fig. 5 be among Fig. 3 A-A to cutaway view Amplified image.
Fig. 6 be among Fig. 4 B-B to cutaway view Amplified image.
Fig. 7 is the flow chart of check valve manufacture method embodiment of the present invention.
The invention will be further described below in conjunction with drawings and Examples.
The specific embodiment
The print cartridge of present embodiment is releasably attached in the ink-jet printer, and ink-jet printer has casing, is provided with movement in the casing, and movement is provided with circuit board, and circuit board is provided with the governor circuit of ink-jet printer, is used for the work of control ink-jet printer.And, also be provided with a slide bar in the casing of printer, printing the word car can move back and forth in casing along slide bar under the drive of motor.
Print the word car and have cavity, a plurality of print cartridges are releasably attached in the cavity.Each print cartridge has a housing, and housing surrounds the cavity that holds ink, and the lower end of cavity is provided with ink outlet port, and the ink in the cavity flows out by ink outlet port.
The cavity of print cartridge is divided into ink storage chamber and ink supply chamber, ink storage chamber is communicated with ink outlet port, between ink storage chamber and ink outlet port, check valve is installed, check valve has cylindrical valve body, valve body has the valve casing that elastic thin-wall forms, and an end of valve casing is uncovered, and is provided with in the valve body and the uncovered valve pocket that is communicated with, be cut open on the sidewall of valve body and form an otch, otch is parallel to the axis setting of valve body.And otch runs through inner surface and the outer surface of body wall, therefore enters the fluid of valve pocket, as ink or air etc., can flow out valve pocket through otch.
In addition, roof or the sidewall of print cartridge are provided with pore, and pore is communicated with by playing with ink storage chamber, is provided with check valve between pore and ink storage chamber, and the structure of this check valve is identical with one-way valve structures between the ink supply chamber with being arranged on ink storage chamber.
And, between ink storage chamber and the ink supply chamber pressure release passage can also be set, in pressure release passage, be provided with check valve, this one-way valve structures is also identical with one-way valve structures between the ink supply chamber with being arranged on ink storage chamber.
Introduce the manufacturing process of check valve below in conjunction with Fig. 7.When making check valve, at first use silica gel or rubber hot pressing to form valve body, an end of valve body is uncovered, and form and the uncovered valve pocket that is communicated with in the valve body, use cutter to cut an otch at the sidewall of valve body then, this otch runs through inside surface of side wall and outer surface, the step that is finished like this S1.
Then, it is to soak predetermined time in 5% the calcium chloride solution that the check valve that will have an otch is placed on concentration ratio, as 20 minutes, and constantly stirs calcium chloride solution in immersion process, so that calcium chloride solution fully infiltrates between the tangent plane of otch, i.e. execution in step S2.Certainly, can also manually rub check valve gently in the immersion process, more be conducive in the tangent plane of calcium chloride solution infiltration otch.
At last, check valve being taken out from calcium chloride solution, and carry out drying and handle in air, for example use hair-dryer that check valve is dried up, or use equipment such as washing machine to carry out processed, is completing steps S3 like this.
Because calcium chloride solution oxidation in air forms the calcium carbonate of solid shape, therefore form the oxide layer that one deck is formed by the calcium chloride solution oxidation on the tangent plane of the check valve otch of present embodiment, the main component of this oxide layer is calcium carbonate, because calcium carbonate is the decorating film body, and be difficult for bonding, thereby can effectively avoid otch that the bonding phenomenon takes place, guarantee that fluids such as air or ink can flow out by otch from valve pocket when the valve body inside and outside differential pressure reaches the predetermined value of design.
Be that check valve is immersed in the experimental data in variable concentrations or the solution below:
Experiment one:
Preparation 10% liquid detergent solution (solution one), place 4 hours at normal temperatures after, check valve is immersed in the solution one 20 minutes, take out the back and at air drying, realize that data are as follows:
| Sample size | Qualified quantity | Defective quantity | Disqualification rate |
| 500 | 296 | 204 | 40.80% |
Table 1
In the table 1, " qualified quantity " refers to can the not bond check valve quantity of phenomenon of otch, and " defective quantity " refers to can the bond check valve quantity of phenomenon of otch.By table 1 as seen, check valve is immersed in 10% the liquid detergent solution, the qualification rate of check valve is lower, can not satisfy production requirement.
Experiment two:
Compound concentration is than the calcium chloride solution (solution two) that is 17%, place 4 hours at normal temperatures after, check valve is immersed in the solution two 20 minutes, take out the back and at air drying, realize that data are as follows:
| Sample size | Qualified quantity | Defective quantity | Disqualification rate |
| 500 | 365 | 135 | 27% |
Table 2
As seen from Table 2, check valve is immersed in the higher calcium chloride solution of concentration, it is still serious that bonding phenomenon situation takes place the otch of check valve, can not satisfy instructions for use.And, because calcium chloride solution concentration is higher, form the calcium chloride crystal on the surface of check valve easily, cause the calcium chloride crystal to dissolve in the ink, cause the obstruction of printhead, influence the work of ink-jet printer.
Experiment three:
Compound concentration is than the calcium chloride solution (solution three) that is 5%, place 4 hours at normal temperatures after, check valve is immersed in the solution three 20 minutes, take out the back and at air drying, realize that data are as follows:
| Sample size | Qualified quantity | Defective quantity | Disqualification rate |
| 500 | 496 | 4 | 0.08% |
Table 3
As seen from Table 3, check valve is immersed in the lower calcium chloride solution of concentration, otch appears in check valve, and that the situation of bonding phenomenon takes place is less, can satisfy the requirement of use.
Certainly, if the lower calcium chloride solution of configuration concentration, then to cross the low amount of the calcium carbonate that oxidation forms that causes too small because of the concentration of solution, can not effectively avoid otch the bonding phenomenon to occur on the contrary.
When making print cartridge, at first hot pressing forms the housing of print cartridge, is formed with cavity in the housing, and cavity comprises ink storage chamber, ink supply chamber etc., and the below of cavity formation ink outlet port, on the roof of housing or the sidewall pore is set.Then, make check valve according to the method described above, check valve is installed in the cavity, between ink storage chamber and ink outlet port, perhaps between ink storage chamber and the pore, perhaps in the pressure release passage between ink storage chamber and the ink supply chamber etc.Certainly, finish above-mentioned steps after, can also be to can ink in the cavity of print cartridge.If can ink in process of production not, can be at before sales or by user's can ink voluntarily in use.
Owing to do not need to smear silicone oil to check valve when making check valve, but a large amount of check valves can be immersed in the calcium chloride solution in the lump, can improve the production efficiency of check valve greatly, reduce the production cost of check valve.And, owing to need not to smear silicone oil, therefore can avoid silicone oil to be added in the ink, thereby avoid print quality is impacted.
Certainly, in above-described embodiment, print cartridge is directly to be installed on the printing word car of ink-jet printer, during practical application, print cartridge of the present invention also comprises and is placed on the ink bottle that ink-jet printer outward is used for holding ink in the continuous ink-supply system, and this ink bottle also has housing, and housing surrounds the cavity that holds ink, and the lower end at cavity is provided with ink outlet port, and the check valve as above-mentioned embodiment is installed between cavity and ink outlet port.
In addition, the valve body of check valve not necessarily is arranged to cylindrical shape, can also be arranged to the shape of revolving bodies such as spheroid or round platform, if valve body is spheroid, then the direction of otch can be any direction, if truncated conical shape, otch should be on the bus of round platform.
It is emphasized that at last; the invention is not restricted to above-mentioned embodiment, also should be included in the protection domain of claim of the present invention as the change of check valve soak time in calcium chloride solution, the change of the concrete shape of check valve, the change of check valve manufactured materials etc.
Claims (10)
1. check valve comprises
Valve body, described valve body have the valve casing that elastic thin-wall forms, and described valve casing one end is uncovered, and described valve casing surrounds and the described uncovered valve pocket that is communicated with, and offers the otch that runs through described side wall inner surfaces and outer surface on the sidewall of described valve body;
It is characterized in that:
The oxide layer that is formed by the calcium chloride solution oxidation is arranged on the tangent plane of described otch.
2. check valve according to claim 1 is characterized in that:
Described valve body is revolving body.
3. check valve according to claim 2 is characterized in that:
Described valve body is cylinder, and described otch is parallel to the axis of described valve body.
4. the manufacture method of check valve comprises
Hot pressing forms the valve body of check valve, and described valve body has the valve casing that elastic thin-wall forms, and an end of described valve casing is uncovered, is provided with in the described valve body and the described uncovered valve pocket that is communicated with;
Sidewall at described valve body cuts a kerf, and described otch runs through described side wall inner surfaces and outer surface;
It is characterized in that:
The check valve that will have a described otch takes out from described solution and handles at air drying after being placed on and soaking the scheduled time in 5% the calcium chloride solution.
5. the manufacture method of check valve according to claim 4 is characterized in that:
The described scheduled time is 20 minutes.
6. according to the manufacture method of claim 4 or 5 described check valves, it is characterized in that:
When described check valve is immersed in the described calcium chloride solution, described calcium chloride solution is carried out stir process.
7. print cartridge comprises
Housing, described housing surrounds the cavity that holds ink, the lower end of described cavity is provided with ink outlet port, in the described cavity check valve is installed, described check valve has valve body, and described valve body has the valve casing that elastic thin-wall forms, and an end of described valve casing is uncovered, be provided with in the described valve body and the described uncovered valve pocket that is communicated with, and offer the otch that runs through described side wall inner surfaces and outer surface on the sidewall of described valve body;
It is characterized in that:
The oxide layer that is formed by the calcium chloride solution oxidation is arranged on the tangent plane of described otch.
8. print cartridge according to claim 7 is characterized in that:
Described valve body is revolving body.
9. the manufacture method of print cartridge comprises
Hot pressing forms the housing of print cartridge, and described housing surrounds be used to the cavity that holds ink, and the lower end of described cavity is provided with ink outlet port;
Hot pressing forms the valve body of check valve, and described valve body has the valve casing that elastic thin-wall forms, and an end of described valve casing is uncovered, is provided with in the described valve body and the described uncovered valve pocket that is communicated with;
Sidewall at described valve body cuts a kerf, and described otch runs through described side wall inner surfaces and outer surface;
It is characterized in that:
The check valve that will have a described otch takes out from described solution and handles at air drying after being placed on and soaking the scheduled time in 5% the calcium chloride solution;
Described check valve is installed in the described cavity.
10. the manufacture method of print cartridge according to claim 9 is characterized in that:
When described check valve is immersed in described calcium chloride solution, described calcium chloride solution is carried out stir process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210023934 CN103240997A (en) | 2012-02-03 | 2012-02-03 | One-way valve and manufacturing method thereof as well as ink box and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210023934 CN103240997A (en) | 2012-02-03 | 2012-02-03 | One-way valve and manufacturing method thereof as well as ink box and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103240997A true CN103240997A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210023934 Pending CN103240997A (en) | 2012-02-03 | 2012-02-03 | One-way valve and manufacturing method thereof as well as ink box and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN103240997A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108556486A (en) * | 2018-03-19 | 2018-09-21 | 刘水源 | It is a kind of that there is the dual integrated continuous ink supply system for preventing ink from flowing back |
| JP2018176503A (en) * | 2017-04-10 | 2018-11-15 | セイコーエプソン株式会社 | Printer and control method for printer |
-
2012
- 2012-02-03 CN CN 201210023934 patent/CN103240997A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018176503A (en) * | 2017-04-10 | 2018-11-15 | セイコーエプソン株式会社 | Printer and control method for printer |
| CN108556486A (en) * | 2018-03-19 | 2018-09-21 | 刘水源 | It is a kind of that there is the dual integrated continuous ink supply system for preventing ink from flowing back |
| CN108556486B (en) * | 2018-03-19 | 2023-07-14 | 刘水源 | Integrated continuous ink supply box with dual ink backflow prevention function |
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Application publication date: 20130814 |