CN102101386A - Circulating ink supply device - Google Patents
Circulating ink supply device Download PDFInfo
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- CN102101386A CN102101386A CN2009102419517A CN200910241951A CN102101386A CN 102101386 A CN102101386 A CN 102101386A CN 2009102419517 A CN2009102419517 A CN 2009102419517A CN 200910241951 A CN200910241951 A CN 200910241951A CN 102101386 A CN102101386 A CN 102101386A
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Abstract
The invention discloses a circulating ink supply device relating to the technical field of ink supply and preventing ink leakage and bubble generation. The circulating ink supply device comprises a printer head, an outlet of the printer head is connected to an ink box which is connected to a main ink bucket, the main ink bucket is connected to an ink feeding device, an ink inlet of the ink feeding device is connected to the main ink bucket, and an ink outlet is connected with an inlet of the printer head; a normally-closed ink path electromagnetic valve is connected between the main ink bucket and the ink box which is connected to a first negative pressure device or a normally-open ink path electromagnetic valve is arranged between the ink box and the main ink bucket and connected with the bottom of the main ink bucket, and the ink box is connected to the first negative pressure device. The circulating ink supply device can be used for circularly supplying ink.
Description
Technical field
The present invention relates to the ink feed techniques field, relate in particular to a kind of cyclic ink supply device.
Background technology
In the ink-jet printing technology field, adopt the ink jet-print head of crossfire (through-flow) working method in the ink-jet printer usually.By this crossfire working method, ink can be taken away impurity to prevent its plug nozzle, can also promote thermal cycle simultaneously, guarantees higher accuracy of temperature control.
Prior art one provides a kind of cyclic ink supply system of crossfire working method, as shown in Figure 1, the China ink part of returning of this cyclic ink supply system comprises shower nozzle 5, the outlet of shower nozzle 5 links to each other with the inlet of backflow pool 6, the outlet of backflow pool 6 links to each other with the China ink end that advances of backflow pump 11, and the ink-outtake end of backflow pump then links to each other with print cartridge 1.When closing ink-jet printer, the Hui Mo in 11 pairs of shower nozzles 5 of backflow pump aspirates, and Hui Mo at first enters in the backflash 6, and then enters backflow pump 11, and is withdrawn in the print cartridge 1 through backflow pump 11, thereby finishes back black process to avoid shower nozzle 5 place's ink leaks.
Prior art two provides another kind of ink feeding system, as shown in Figure 2, the China ink part of returning of this ink feeding system comprises printhead 20, printhead 20 is provided with back China ink outlet 26, return China ink outlet 26 and link to each other by pipeline 66 and outlet China ink jars 42, outlet China ink jars 42 passes through pipeline 14 and links to each other with ink housing tube (not shown).Like this, return China ink and can at first flow back to outlet China ink jar 42, and then return ink reservoir from exporting black jar 42 from printhead 20.Wherein, also be provided with float valve 54 in outlet China ink jar 42, float valve 54 is used to keep the inlet that the liquid level that exports in black jar is higher than pipeline 14, prevents that air enters ink feeding system and can't keep vacuum state when liquid level descends, and finally causes bubble.
Yet also there is certain shortcoming in ink feeding system of the prior art.For example, utilize the black mode of returning of prior art one to return China ink and need the regular hour, if run into the situation of unexpected outage, can not finish the black process of this time if having time, thereby will cause shower nozzle 5 place's ink leaks.And the scheme of utilizing float valve 54 to avoid causing bubble in the prior art two is difficult to grasp and realize.
Summary of the invention
In order to solve above-mentioned the problems of the prior art, the invention provides a kind of cyclic ink supply device, can prevent ink leak and prevent to produce bubble.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of cyclic ink supply device, comprise shower nozzle, the outlet of described shower nozzle is connected with print cartridge, described print cartridge is connected with main China ink bucket, described main China ink bucket is connected with ink feed arrangement, and the ink entrance of described ink feed arrangement links to each other with described main China ink bucket, ink outlet port links to each other with the inlet of described shower nozzle, is connected with normally closed black way solenoid valve between described print cartridge and described main China ink bucket, and described print cartridge is connected with first negative pressure device, and described first negative pressure device is used for forming first negative pressure in described print cartridge.
Wherein for eliminating bubble, be provided with overflow baffle in described main China ink bucket, described overflow baffle is divided into overflow launder and main chamber with described main China ink bucket, and described overflow launder links to each other with described normally closed black way solenoid valve, and described main chamber links to each other with described ink feed arrangement.
And in order to avoid producing bubble better, described print cartridge also is connected with automatic liquid level control module, and described automatic liquid level control module comprises:
Liquid level sensor is located in the described print cartridge, is used to detect the liquid level information of ink in the described print cartridge;
Controller is used to receive the liquid level information of described liquid level sensor feedback, and controls described normally closed black way solenoid valve according to this liquid level information and open or close, with the ink level in the described print cartridge of automatic control.
And described main China ink bucket is connected with second negative pressure device, and described second negative pressure device is used for forming second negative pressure in described main China ink bucket.
Wherein, described second negative pressure is greater than described first negative pressure.
Particularly, the difference between described second negative pressure and described first negative pressure is greater than 100 millibars.
In order to produce the first stable negative pressure and/or second negative pressure, between described print cartridge and described first negative pressure device, be provided with first electromagnetic valve of gas circuit; And/or, between described main China ink bucket and described second negative pressure device, be provided with second electromagnetic valve of gas circuit.
Cyclic ink supply device provided by the invention, owing between described print cartridge and described main China ink bucket, be connected with normally closed black way solenoid valve, and described print cartridge is connected with first negative pressure device, therefore can be by opening or closing described normally closed black way solenoid valve, so that the ink level in the described print cartridge maintains in the suitable scope, thereby avoid causing air to enter described main China ink bucket and produce bubble owing to the China ink amount is very few, and described first negative pressure device can form subnormal ambient in described print cartridge, in the outage suddenly of described cyclic ink supply device or normally close under the situation, described normally closed black way solenoid valve is in closed condition, thereby with first negative-pressure sealing in the described print cartridge, this first negative pressure can prevent that to the swabbing action of described shower nozzle ink inside the ink leakage at described shower nozzle place, described thus cyclic ink supply device from can prevent ink leak and preventing to produce bubble.
The present invention also provides another kind of cyclic ink supply device, describedly can prevent ink leak and prevent to produce bubble.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of cyclic ink supply device, comprise shower nozzle, the outlet of described shower nozzle is connected with print cartridge, described print cartridge is connected with main China ink bucket, described main China ink bucket is connected with ink feed arrangement, the ink entrance of described ink feed arrangement links to each other with described main China ink bucket, ink outlet port links to each other with the inlet of described shower nozzle, between described print cartridge and described main China ink bucket, be connected with the Chang Kaimo way solenoid valve, described Chang Kaimo way solenoid valve one end links to each other with described print cartridge, the other end links to each other with the bottom of described main China ink bucket, and described print cartridge is connected with first negative pressure device, and described first negative pressure device is used for formation first negative pressure in described print cartridge.
Wherein for eliminating bubble, be provided with overflow baffle in described main China ink bucket, described overflow baffle is divided into overflow launder and main chamber with described main China ink bucket, and described overflow launder links to each other with described normally closed black way solenoid valve, and described main chamber links to each other with described ink feed arrangement.
And, be provided with automatic liquid level control module in the described print cartridge in order to prevent to produce bubble better, described automatic liquid level control module comprises:
Liquid level sensor is used to detect the liquid level information of ink in the described print cartridge;
Controller is used to receive the liquid level information of described liquid level sensor feedback, and controls described normally closed black way solenoid valve according to this liquid level information and open or close, with the ink level in the described print cartridge of automatic control.
Cyclic ink supply device provided by the invention, owing between described print cartridge and described main China ink bucket, be connected with the Chang Kaimo way solenoid valve, described Chang Kaimo way solenoid valve one end links to each other with described print cartridge, the other end links to each other with the bottom of described main China ink bucket, and described print cartridge is connected with first negative pressure device, therefore can be by opening or closing described Chang Kaimo way solenoid valve, so that the ink level in the described print cartridge maintains in the suitable scope, thereby avoid causing air to enter described main China ink bucket and produce bubble owing to the China ink amount is very few, and described first negative pressure device can form subnormal ambient in described print cartridge, in the outage suddenly of described cyclic ink supply device or normally close under the situation, because described normally open solenoid valve links to each other with the bottom of described main China ink bucket, and the ink level in the described main China ink bucket is higher than the bottom of described main China ink bucket, so just can be with first negative-pressure sealing in the described print cartridge, this first negative pressure can prevent that to the swabbing action of described shower nozzle ink inside the ink leakage at described shower nozzle place, described thus cyclic ink supply device from can prevent ink leak and preventing to produce bubble.
Description of drawings
Fig. 1 forms schematic diagram for the cyclic ink supply system that prior art one provides;
Fig. 2 forms schematic diagram for the ink feeding system that prior art provides;
Fig. 3 forms schematic diagram for the system of an embodiment of cyclic ink supply device of the present invention;
Fig. 4 is that the system after cyclic ink supply device shown in Figure 3 is improved forms schematic diagram;
Fig. 5 is the perspective view of main China ink bucket shown in Figure 4;
Fig. 6 forms schematic diagram for the system of another embodiment of cyclic ink supply device of the present invention.
The specific embodiment
The present invention aims to provide a kind of cyclic ink supply device, can prevent ink leak and prevent to produce bubble.Describe the present invention below in conjunction with accompanying drawing.
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, below in conjunction with accompanying drawing embodiments of the invention are described in detail, following description only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other embodiment of the present invention according to these embodiment.
Embodiment one
As shown in Figure 3, be a specific embodiment of cyclic ink supply device of the present invention.In the present embodiment, described cyclic ink supply device comprises shower nozzle 101, the outlet of shower nozzle 101 is connected with print cartridge 102, print cartridge 102 is connected with main China ink bucket 103, main China ink bucket 103 is connected with ink feed arrangement 104, the ink entrance of ink feed arrangement 104 links to each other with main China ink bucket 103, ink outlet port links to each other with the inlet of shower nozzle 101, wherein between print cartridge 102 and main China ink bucket 103, be connected with normally closed black way solenoid valve 105, and print cartridge 102 is connected with first negative pressure device, 106, the first negative pressure devices 106 and is used for forming first negative pressure in print cartridge 102.
Cyclic ink supply device in the present embodiment, owing between print cartridge 102 and main China ink bucket 103, be connected with normally closed black way solenoid valve 105, and print cartridge 102 is connected with first negative pressure device 106, therefore can be by opening or closing this normally closed black way solenoid valve 105, so that the ink level in the print cartridge 102 maintains in the suitable scope, thereby avoid causing air to enter main China ink bucket 103 and produce bubble owing to the China ink amount is very few, and first negative pressure device 106 can in print cartridge 102, form subnormal ambient, in the outage suddenly of this cyclic ink supply device or normally close under the situation, normally closed black way solenoid valve 105 is in closed condition, thereby with first negative-pressure sealing in the print cartridge 102, this first negative pressure can prevent the ink leakage at shower nozzle 101 places to the swabbing action of shower nozzle 101 ink inside, and the cyclic ink supply device in the present embodiment can prevent ink leak and prevent to produce bubble thus.
Need to prove, between print cartridge 102 and main China ink bucket 103, be connected with normally closed black way solenoid valve 105 in the present embodiment, owing to cutting off the power supply suddenly at this cyclic ink supply device and normally closing under the situation, normally closed black way solenoid valve 105 is in closed condition, this closed condition can be with first negative-pressure sealing in the print cartridge 102, therefore this normally closed black way solenoid valve 105 and main China ink bucket 103 positions that link to each other both can be arranged on the bottom of main China ink bucket 103, also can be arranged on main black barrel 103 other and highly locate.And, be arranged on the bottom of main China ink bucket 103 usually for for the purpose of the further insurance, can play further sealing function to first negative pressure in the print cartridge 102 by the ink level in the main China ink bucket 103 like this.
Wherein in conjunction with Fig. 4 and shown in Figure 5, in main China ink bucket 103, be provided with overflow baffle 1031, overflow baffle 1031 will be led China ink bucket 103 and be divided into overflow launder 1032 and main chamber 1033, and overflow launder 1032 links to each other with normally closed black way solenoid valve 105, and main chamber 1033 links to each other with ink feed arrangement 104.The ink that flows through from normally closed black way solenoid valve 105 at first flows into main black barrel 103 overflow launder 1032, cross the overflow baffle 1031 of overflow launder 1032 then and flow into main chamber 1033, enter ink feed arrangement 104 by main chamber 1033 at last, and be input in the shower nozzle 101 by ink feed arrangement 104.In the flow process of ink, produced like this under the situation of bubble, by ink this reversed process, can squeeze the relieving stagnant Qi bubble well, thereby reach the purpose of eliminating bubble from overflow launder 1032 to main chamber 1033.
And as can be seen from Figure 4, print cartridge 102 also is connected with automatic liquid level control module 107, and this automatic liquid level control module 107 comprises:
By this automatic liquid level control module 107, do not need manual monitoring, the ink level in the print cartridge 102 is maintained in the suitable scope, produce bubble thereby avoid causing air to enter owing to China ink amount in the print cartridge 102 is very few.
As can be seen from Figure 4, main China ink bucket 103 is connected with second negative pressure device 108 in the present embodiment, this second negative pressure device 108 is used for forming second negative pressure in main China ink bucket 103, like this when being doped with bubble in the ink in the main China ink bucket 103, this second negative pressure can absorb bubble, thereby reach the purpose of eliminating bubble to a certain extent, guarantee to be input to the cleaning of the ink in the shower nozzle 101.
And in the present embodiment, first negative pressure that second negative pressure that second negative pressure device 108 forms in main China ink bucket 103 forms in print cartridge 102 greater than first negative pressure device 106, so just make the atmospheric density in winner's China ink bucket 103 be lower than the interior atmospheric density of print cartridge, thereby make this second negative pressure to play swabbing action to the ink in the print cartridge 102, ink in the print cartridge 102 can be flowed in the main China ink bucket 103 continuously to realize Hui Mo, be a continuous process owing to the inks in the print cartridge 102 flow in the main China ink bucket 103 simultaneously, so this also can prevent the generation of bubble to a certain extent.
Particularly, in the present embodiment difference between second negative pressure and described first negative pressure greater than 100 millibars (mbar).This is because use observation to learn by reality, when second negative pressure during than big 100 millibars of described first negative pressure, the process that ink in the print cartridge 102 flow in the main black bucket 103 is mild, and speed is moderate, is easy to keep the balance of print cartridge 102 and main China ink barrel 103 China and Mexico amount.
Further, between the print cartridge 102 and first negative pressure device 106, be provided with first electromagnetic valve of gas circuit 109, by opening or closing first electromagnetic valve of gas circuit 109 first negative pressure in the print cartridge 102 is remained in certain pressure range, so that the subnormal ambient in the print cartridge 102 tends towards stability.And between main China ink bucket 103 and second negative pressure device 108, be provided with second electromagnetic valve of gas circuit 110, by opening or closing 110 of second electromagnetic valve of gas circuit second negative pressure in the main China ink bucket 103 is remained in certain pressure range, thereby the subnormal ambient in the main China ink bucket 103 is tended towards stability.
It should be noted that the present invention is not limited thereto, in other embodiments of the invention, also can only between the print cartridge 102 and first negative pressure device 106, be provided with first electromagnetic valve of gas circuit 109.
Similarly, also can be by pressure detecting sensor and controller correspondingly, automatically control opening or closing of first electromagnetic valve of gas circuit 109 and second electromagnetic valve of gas circuit 110, to realize automatic adjusting and control to print cartridge 102 interior and main China ink bucket 103 interior subnormal ambients.
Embodiment two
As shown in Figure 6, be another specific embodiment of cyclic ink supply device of the present invention, the cyclic ink supply device described in the present embodiment is substantially the same with the cyclic ink supply device described in the embodiment one, does not repeat them here, and only describes its difference below.
In the present embodiment, described cyclic ink supply device comprises shower nozzle 101, the outlet of described shower nozzle is connected with print cartridge 102, print cartridge 102 is connected with main China ink bucket 103, main China ink bucket 103 is connected with ink feed arrangement 104, the ink entrance of ink feed arrangement 104 links to each other with main China ink bucket 103, ink outlet port links to each other with the inlet of shower nozzle 101, between print cartridge 102 and main China ink bucket 103, be connected with Chang Kaimo way solenoid valve 111, Chang Kaimo way solenoid valve 111 1 ends link to each other with print cartridge 102, the other end links to each other with the bottom of main China ink bucket 103, and print cartridge 102 is connected with first negative pressure device, 106, the first negative pressure devices 106 and is used for formation first negative pressure in print cartridge 102.
Cyclic ink supply device in the present embodiment, owing between print cartridge 102 and main China ink bucket 103, be connected with Chang Kaimo way solenoid valve 111, Chang Kaimo way solenoid valve 111 1 ends link to each other with print cartridge 102, the other end links to each other with the bottom of main China ink bucket 103, and print cartridge 102 is connected with first negative pressure device 106, therefore can be by opening or closing Chang Kaimo way solenoid valve 111, so that the ink level in the print cartridge 102 maintains in the suitable scope, thereby avoid causing air to enter main China ink bucket 103 and produce bubble owing to the China ink amount is very few, and first negative pressure device 106 can in print cartridge 102, form subnormal ambient, in the outage suddenly of this cyclic ink supply device or normally close under the situation, though opening black way solenoid valve 111 often, this is in open mode, but because normally open solenoid valve 111 links to each other with the bottom of main China ink bucket 103, and the ink level in the main China ink bucket 103 is higher than the bottom of main China ink bucket 103, therefore so also can be with first negative-pressure sealing in the print cartridge 102, this first negative pressure can prevent the ink leakage at shower nozzle 101 places to the swabbing action of shower nozzle 101 ink inside, and this cyclic ink supply device can prevent ink leak and prevent to produce bubble thus.
Wherein need to prove, because long-time energising can cause magnetic valve overheated, thereby influence the life-span of magnetic valve,, can select to use normally closed solenoid valve or normally open solenoid valve according to the ratio of electromagnetic valve switch time therefore in order to prolong the service life of magnetic valve.For example when the time that needs closed electromagnetic valve is longer relatively, can select the normally closed black way solenoid valve among the embodiment one, and time that needs magnetic valve to open when longer relatively can be selected the Chang Kaimo way solenoid valve among the embodiment two.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection domain of claim.
Claims (10)
1. cyclic ink supply device, comprise shower nozzle, the outlet of described shower nozzle is connected with print cartridge, and described print cartridge is connected with main China ink bucket, and described main China ink bucket is connected with ink feed arrangement, the ink entrance of described ink feed arrangement links to each other with described main China ink bucket, ink outlet port links to each other with the inlet of described shower nozzle, it is characterized in that, is connected with normally closed black way solenoid valve between described print cartridge and described main China ink bucket, and described print cartridge is connected with first negative pressure device, and described first negative pressure device is used for forming first negative pressure in described print cartridge.
2. cyclic ink supply device according to claim 1, it is characterized in that be provided with overflow baffle in described main China ink bucket, described overflow baffle is divided into overflow launder and main chamber with described main China ink bucket, described overflow launder links to each other with described normally closed black way solenoid valve, and described main chamber links to each other with described ink feed arrangement.
3. cyclic ink supply device according to claim 1 and 2 is characterized in that, described print cartridge also is connected with automatic liquid level control module, and described automatic liquid level control module comprises:
Liquid level sensor is located in the described print cartridge, is used to detect the liquid level information of ink in the described print cartridge;
Controller is used to receive the liquid level information of described liquid level sensor feedback, and controls described normally closed black way solenoid valve according to this liquid level information and open or close, with the ink level in the described print cartridge of automatic control.
4. cyclic ink supply device according to claim 3 is characterized in that, described main China ink bucket is connected with second negative pressure device, and described second negative pressure device is used for forming second negative pressure in described main China ink bucket.
5. cyclic ink supply device according to claim 4 is characterized in that, described second negative pressure is greater than described first negative pressure.
6. cyclic ink supply device according to claim 5 is characterized in that, the difference between described second negative pressure and described first negative pressure is greater than 100 millibars.
7. cyclic ink supply device according to claim 6 is characterized in that, is provided with first electromagnetic valve of gas circuit between described print cartridge and described first negative pressure device; Between described main China ink bucket and described second negative pressure device, be provided with second electromagnetic valve of gas circuit.
8. cyclic ink supply device, comprise shower nozzle, the outlet of described shower nozzle is connected with print cartridge, described print cartridge is connected with main China ink bucket, described main China ink bucket is connected with ink feed arrangement, the ink entrance of described ink feed arrangement links to each other with described main China ink bucket, ink outlet port links to each other with the inlet of described shower nozzle, it is characterized in that, be connected with the Chang Kaimo way solenoid valve between described print cartridge and described main China ink bucket, described Chang Kaimo way solenoid valve one end links to each other with described print cartridge, and the other end links to each other with the bottom of described main China ink bucket, and described print cartridge is connected with first negative pressure device, and described first negative pressure device is used for forming first negative pressure in described print cartridge.
9. cyclic ink supply device according to claim 8, it is characterized in that be provided with overflow baffle in described main China ink bucket, described overflow baffle is divided into overflow launder and main chamber with described main China ink bucket, described overflow launder links to each other with described normally closed black way solenoid valve, and described main chamber links to each other with described ink feed arrangement.
10. according to Claim 8 or 9 described cyclic ink supply devices, it is characterized in that be provided with automatic liquid level control module in the described print cartridge, described automatic liquid level control module comprises:
Liquid level sensor is used to detect the liquid level information of ink in the described print cartridge;
Controller is used to receive the liquid level information of described liquid level sensor feedback, and controls described normally closed black way solenoid valve according to this liquid level information and open or close, with the ink level in the described print cartridge of automatic control.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102419517A CN102101386A (en) | 2009-12-16 | 2009-12-16 | Circulating ink supply device |
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| CN2009102419517A CN102101386A (en) | 2009-12-16 | 2009-12-16 | Circulating ink supply device |
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| CN102101386A true CN102101386A (en) | 2011-06-22 |
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| CN102862393A (en) * | 2012-10-17 | 2013-01-09 | 廖永红 | Double-negative-pressure circular side-spray anti-sedimentation electroluminescent (EL) jet printing ink way system |
| CN103182851A (en) * | 2011-12-31 | 2013-07-03 | 北大方正集团有限公司 | Method and device for stirring ink |
| CN104275937A (en) * | 2013-07-05 | 2015-01-14 | 北大方正集团有限公司 | Overflowing protection device for working ink box and circulating ink supply system |
| CN104290455A (en) * | 2013-07-18 | 2015-01-21 | 北大方正集团有限公司 | Ink feeding device and printing ink head surface meniscus forming method |
| CN105082770A (en) * | 2014-05-09 | 2015-11-25 | 北大方正集团有限公司 | Cyclic ink supply device and ink-jet printer |
| CN106515221A (en) * | 2016-09-29 | 2017-03-22 | 深圳市汉拓数码有限公司 | Intelligent ink supply device with multi-protection function and implementation method thereof |
| CN108099462A (en) * | 2018-01-22 | 2018-06-01 | 徐裕良 | It is a kind of can Hui Mo out of ink automatically inkstone |
| CN109664618A (en) * | 2017-10-16 | 2019-04-23 | 北大方正集团有限公司 | Ink-providing control system, printing machine, ink supply control method |
| CN114211883A (en) * | 2021-11-29 | 2022-03-22 | 安徽微通流体控制系统有限公司 | Negative pressure adjusting type two-stage ink box |
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| CN106515221A (en) * | 2016-09-29 | 2017-03-22 | 深圳市汉拓数码有限公司 | Intelligent ink supply device with multi-protection function and implementation method thereof |
| CN109664618A (en) * | 2017-10-16 | 2019-04-23 | 北大方正集团有限公司 | Ink-providing control system, printing machine, ink supply control method |
| CN108099462A (en) * | 2018-01-22 | 2018-06-01 | 徐裕良 | It is a kind of can Hui Mo out of ink automatically inkstone |
| CN114211883A (en) * | 2021-11-29 | 2022-03-22 | 安徽微通流体控制系统有限公司 | Negative pressure adjusting type two-stage ink box |
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