CN211493309U - Ink cartridge and ink jet printer - Google Patents

Abstract

The utility model provides an ink horn and ink jet printer, the ink horn include that casing, ink hold chamber, deformable chamber, play black mouth, inflation inlet, gas guide port and the intercommunication chamber, buffering passageway and the chamber of hindering that communicate each other, and the ink holds chamber and deformable chamber and all sets up in the casing, goes out black mouth, inflation inlet and gas guide port and all sets up on the lateral wall of casing, goes out black mouth and ink and holds the chamber intercommunication, inflation inlet and deformable chamber intercommunication. The ink containing cavity is separated from the communicating cavity through a partition wall, and a communicating opening is formed in the bottom of the partition wall. The communicating cavity is communicated with the slow resistance cavity through a buffer channel, the buffer channel is provided with an ink inlet end and an ink outlet end, the buffer channel extends from the ink inlet end to the ink outlet end from bottom to top, the ink inlet end is communicated with the communicating cavity, and the ink outlet end is communicated with the slow resistance cavity. The number of the slow-blocking cavities is more than two, and porous materials are filled in at least two slow-blocking cavities. The slow-blocking cavity is communicated with the air guide port, and the air guide port is communicated with the outside atmosphere. The ink box has simple structure and can improve the efficiency of removing bubbles in the printing head.

Description

Ink cartridge and ink jet printer

Technical Field

The utility model belongs to the technical field of the printing consumables technique and specifically relates to an ink horn and ink jet printer are related to.

Background

European patent document EP2010392B1 discloses an ink cartridge comprising a deformable chamber located in an ink reservoir, the deformable chamber being formed by a flexible membrane, and a side wall of the ink cartridge being provided with a gas filling port connected to a pump of the printer, the gas filling port communicating with the deformable chamber. When printing starts, the pump pressurizes the deformable cavity through the air charging port under the action of the controller, the deformable cavity expands to enable ink in the ink storage cavity to be extruded out of the ink supply port, and the ink flows into the printing head so as to discharge air gathered in the printing head, so that air bubbles in the printing head are removed.

However, since the deformable chamber is accommodated in the middle of the ink storage chamber, when the deformable chamber is pressurized, ink in the ink storage chamber spreads around, and only a small amount of ink is discharged through the ink supply port, so that a pump is required to pressurize the deformable chamber many times.

Patent document No. CN203157372U discloses an ink cartridge, which comprises a one-way valve, wherein the one-way valve comprises a valve cavity arranged on a housing, a spring located in the valve cavity, a deformable elastic component, a valve cover and other parts, the number of the parts is too large, the sealing performance is difficult to ensure during assembly, and due to the existence of a partition plate, the following problems can occur in the ink cartridge during use: when the gasbag expanded, compress liquid in the twinkling of an eye, because the check valve closes, the circulation of liquid between two adjacent storage ink chambers is prevented to the baffle simultaneously, and the pressure of liquid can be acted on the casing, makes face lid and casing welded junction appear the fracture to lead to the ink horn to break and leak the china ink, liquid can extrude the gasbag simultaneously, lead to the gasbag in the twinkling of an eye atress too big and break. Therefore, the ink box structure has high requirement on the welding process, high processing difficulty and easy breakage of the welding part, thereby causing the problems of higher processing cost and the like.

Disclosure of Invention

The utility model mainly aims at providing an ink horn of simple structure and can improve and beat the bubble clearance efficiency in the printer head.

Another object of the present invention is to provide an ink jet printer having the above ink cartridge.

In order to realize the main purpose, the utility model provides an ink box, hold chamber, deformable chamber, play black mouth, inflation inlet and lead the gas port including casing, ink, the ink holds the chamber and all sets up in the casing with the deformable chamber, goes out black mouth, inflation inlet and leads the gas port and all sets up on the lateral wall of casing, goes out black mouth and ink and holds the chamber intercommunication, inflation inlet and deformable chamber intercommunication. The ink box further comprises a communicating cavity, a buffering channel and a buffering cavity which are communicated with each other, the ink containing cavity and the buffering cavity are respectively arranged on two sides of the communicating cavity, the ink containing cavity and the communicating cavity are separated through a partition wall, and a communicating opening is formed in the bottom of the partition wall. The communicating cavity is communicated with the slow resistance cavity through the buffer channel, the buffer channel is provided with a first ink inlet end and a first ink outlet end, the buffer channel extends from the first ink inlet end to the first ink outlet end from bottom to top, the first ink inlet end is communicated with the communicating cavity, and the first ink outlet end is communicated with the slow resistance cavity. The number of the slow-blocking cavities is more than two, and porous materials are filled in at least two slow-blocking cavities. The slow-blocking cavity is communicated with the air guide port, and the air guide port is communicated with the outside atmosphere.

It is visible by above-mentioned scheme, before the printing begins, the pump of printer aerifys to the deformable intracavity from the charging port, and the expansion of deformable chamber, the pressure increase of intracavity is held to the ink, and partly ink is followed ink outlet flow direction and is beaten printer head, and partly ink gets into the intercommunication intracavity from the intercommunication mouth simultaneously, and when the ink in the intercommunication intracavity was full of, the ink got into from buffering passageway and hinders the intracavity, and the porous material that hinders the intracavity can adsorb the ink to avoid leaking black. When the ink flows to the printing head, the pump stops working, the deformable cavity is contracted, the air in the deformable cavity is discharged through the air charging port, and a certain negative pressure is maintained in the ink accommodating cavity, so that the air bubbles in the printing head are sucked into the ink box to remove the air bubbles in the printing head.

Because the gravity work needs to be overcome to the ink that gets into the intercommunication intracavity from the intercommunication mouth, slowly hinder chamber and porous material's setting and make slowly hinder intracavity ink flow resistance increase, consequently only a small part of ink gets into the intercommunication intracavity from the intercommunication mouth, and most ink flows to beating printer head from the ink outlet to can improve and beat printer head bubble and clear away efficiency, consequently the pump need not to pressurize the variable chamber many times. And because the communication port is arranged on the partition wall, when the pressure in the ink accommodating cavity is increased, a part of ink can enter the communication cavity from the communication port to reduce the pressure in the shell, so that the problem that the pressure of liquid acts on the shell in the prior art, the welding part of the face cover and the shell is cracked, and the ink box and the air bag are cracked and leak ink is avoided.

During printing, the pump is out of work, and the ink that the ink held the intracavity is constantly consumed, leads to the ink to hold the negative pressure crescent of intracavity, and at this moment, outside gas gets into in the casing from leading the gas port, and the ink holds the atmospheric pressure of intracavity and realizes balancing with outside atmospheric pressure, hinders the ink backward flow of chamber, buffer passage and intercommunication intracavity and holds the intracavity to the ink slowly.

One preferred scheme is that the slow-blocking cavity comprises a first slow-blocking cavity and a second slow-blocking cavity, and the first slow-blocking cavity is located above the second slow-blocking cavity. The first slowly-blocking cavity and the second slowly-blocking cavity are filled with porous materials. The ink inlet hole of the first slow resistance cavity is connected with the first ink outlet end of the buffer channel, the ink outlet hole of the first slow resistance cavity is communicated with the second slow resistance cavity through the air guide groove, and the air guide groove is formed in the outer surface of the shell. The air guide port is communicated with the second slow-blocking cavity.

Therefore, the air guide groove is machined on the plane with the larger area, the production process is simpler, the length of the air guide groove can be longer, and the leakage-proof reliability is enhanced. The first slowly hinder porous materials such as the sponge that fills in chamber and the second slowly hinders, forms the absorption chamber, and the absorption part permeates the first slowly hinders the intracavity with the second slowly hinders the ink of intracavity, further improves the leak protection nature.

In a further embodiment, the air guide groove has at least one U-shaped bend.

Therefore, the length of the air guide groove is increased, and the U-shaped bend can further improve the leakage resistance.

Still further, the quantity of first slowly hinder the chamber is more than two, and a plurality of first slowly hinder the chamber intercommunication each other.

Therefore, the first slow-blocking cavities are sequentially communicated, the time that ink enters the second slow-blocking cavity can be effectively delayed, and the leak resistance is improved.

The other scheme is that the two first buffer cavities are communicated through a buffer groove, the buffer groove is provided with a second ink inlet end and a second ink outlet end, and the buffer groove extends from the second ink inlet end to the second ink outlet end from bottom to top.

Therefore, the buffer groove extends from bottom to top, the flow resistance of the ink can be increased, and the ink amount flowing into the second buffer cavity is reduced.

Still further, the buffer slots are arranged in a step shape.

Therefore, the length of the buffer groove is increased, the flow channel of the ink is prolonged, and the quantity of the ink flowing into the second buffer cavity is reduced.

Preferably, the porous material is filled in the first resistance-reducing cavities at intervals along the flow direction of the ink.

In a preferred embodiment, the housing includes a top wall, a bottom wall, a front wall and a rear wall, and the air-filling port and the ink-discharging port are provided in the front wall. The partition wall includes a vertical extension portion and an inclined extension portion, the vertical extension portion extends vertically downward from the top wall, a first end of the inclined extension portion is connected with the vertical extension portion, a second end of the inclined extension portion is connected with the bottom wall, and the second end of the inclined extension portion is closer to the rear wall than the first end of the inclined extension portion.

Therefore, the volume of the ink accommodating cavity can be increased due to the arrangement of the inclined extending part, and on the other hand, ink can conveniently enter the communicating cavity from the communicating port.

Preferably, the ink cartridge further includes a piston and a restoring member. The casing includes the right wall, still is provided with in the casing from the protruding annular arch of right wall to the casing, and the annular arch is located the ink and holds the intracavity, and the piston can move along the bellied extending direction of annular, and right wall, annular arch and piston enclose into the deformable chamber. The restoring force of the restoring member urges the piston toward the right wall.

Therefore, when the pump inflates the variable cavity, the piston moves in the direction away from the right wall of the shell against the acting force of the reset piece, and the variable cavity expands. When the pump does not inflate the deformable cavity any more, the piston moves under the action of the restoring force of the resetting piece, the volume in the deformable cavity is reduced, the deformable cavity is in a contracted state, and the contracted state is maintained in the deformable cavity all the time in the printing process.

In order to achieve the above another object, the present invention provides an inkjet printer, which includes a main unit, an ink cartridge mounting location is disposed on the main unit, the ink cartridge is detachably mounted on the ink cartridge mounting location, the inkjet printer further includes a pump which can be connected to the ink cartridge and can inflate the ink cartridge to a pressure, and the pump inflates the deformable chamber through an inflation inlet.

Drawings

Fig. 1 is a perspective view of the internal structure of a first embodiment of the ink cartridge of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a structural diagram of a communicating chamber, a first slow-blocking chamber and a second slow-blocking chamber in the first embodiment of the ink cartridge of the present invention.

Fig. 4 is a right side view of fig. 1 with the sealing membrane removed.

Fig. 5 is an exploded view of a second embodiment of the ink cartridge of the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Ink cartridge and ink jet printer first embodiment

The ink jet printer of this embodiment includes the host computer, is provided with ink horn installation position on the host computer, and ink horn detachably installs on ink horn installation position, and ink jet printer still includes can be connected with the ink horn and to the pump of ink horn inflation pressurization.

Referring to fig. 1 and 2, the ink cartridge includes a housing 1, an ink accommodating chamber 2, a deformable chamber 3, an ink outlet 131, a gas filling port 132, a gas guide port 151 (shown in fig. 3), an elastic membrane (not shown), a reset member 31, a communicating chamber 4, a buffer passage 5, and a buffer chamber 6.

The casing 1 includes a top wall 11, a bottom wall 12, a front wall 13, a rear wall 14 and a right wall 15, the ink outlet 131 is located at the lower portion of the front wall 13, the air charging port 132 is located on the front wall 13 and is disposed above the ink outlet 131, the ink accommodating chamber 2 and the deformable chamber 3 are both disposed in the casing 1, the air guide port 151 is disposed on the right wall 15, the ink outlet 131 is communicated with the ink accommodating chamber 2, and the air charging port 132 is communicated with the deformable chamber 3.

The ink accommodating cavity 2 and the buffer resistance cavity 6 are respectively arranged at two sides of the communication cavity 4, the ink accommodating cavity 2 and the communication cavity 4 are separated by a partition wall 41, and a communication opening 42 is formed in the bottom of the partition wall 41. Partition wall 41 includes a vertical extension 43 and an inclined extension 44, vertical extension 43 extending vertically downward from top wall 11, inclined extension 44 having a first end connected to vertical extension 43, second end connected to bottom wall 12, and second end of inclined extension 44 closer to rear wall 14 than the first end of inclined extension 44.

The communication chamber 4 and the retard chamber 6 are partitioned by a partition wall 45, and a communication port 451 is opened at the bottom of the partition wall 45. The communicating cavity 4 is communicated with the buffer resistance cavity 6 through the buffer channel 5, the buffer channel 5 is provided with an ink inlet end 51 and an ink outlet end 52, the buffer channel 5 extends from bottom to top from the ink inlet end 51 to the ink outlet end 52, the ink inlet end 51 is communicated with the communicating cavity 4 through a communicating port 451, and the ink outlet end 52 is communicated with the buffer resistance cavity 6. The buffer chamber 6 communicates with the air guide port 151, and the air guide port 151 communicates with the outside atmosphere.

Referring to fig. 2 to 4, the slow blocking cavity 6 includes a first slow blocking cavity 61 and a second slow blocking cavity 62, and the first slow blocking cavity 61 is located above the second slow blocking cavity 62. The number of the first slow-blocking cavities 61 is five, and the first slow-blocking cavities include a slow-blocking cavity 611, a slow-blocking cavity 612, a slow-blocking cavity 613, a slow-blocking cavity 614 and a slow-blocking cavity 615 which are sequentially communicated.

The ink inlet 6111 of the buffer chamber 611 is connected with the first ink outlet 52 of the buffer channel 5, the buffer chamber 611 is communicated with the buffer chamber 612 through the buffer groove 616, the buffer groove 616 has an ink inlet 6161 and an ink outlet 6162, and the buffer groove 616 extends from the ink inlet 6161 to the ink outlet 6162 in a step shape from bottom to top. The ink inlet port 6161 is connected with the ink outlet port 6112 of the buffer chamber 611, and the ink outlet port 6162 is communicated with the ink inlet port 6121 of the buffer chamber 612 through the buffer groove 617. The slow resistance cavity 612 is communicated with the slow resistance cavity 613 through a communication port 6122, the slow resistance cavity 613 is communicated with the slow resistance cavity 614 through a buffer groove 618, an ink outlet port 6131 of the slow resistance cavity 613 is connected with an ink inlet end 6181 of the buffer groove 618, and an ink inlet port 6141 of the slow resistance cavity 614 is connected with an ink outlet end 6182 of the buffer groove 618. The slow impedance cavity 614 is communicated with the slow impedance cavity 615 through a communication port 6142. The ink inlet and the ink outlet of each slow resistance cavity are arranged at the opposite corners of the slow resistance cavity as much as possible, so that the distance between the ink inlet and the ink outlet is maximized to prolong the path of ink flowing in each slow resistance cavity.

The ink outlet 6151 of the buffer chamber 615 is communicated with the second buffer chamber 62 through the air guide groove 63, and the buffer groove 617, the buffer groove 618 and the air guide groove 63 are formed on the outer surface of the right wall 15 of the shell 1. The air guide opening 151 is located on a side wall of the second slow blocking cavity 62, and an air inlet 152 is further formed on the side wall, and the air inlet 152 is connected with the air guide groove 63. The air guide groove is provided with at least one U-shaped bend. In this embodiment, the number of the U-shaped bends is five, and the five U-shaped bends are connected end to end in sequence.

The second buffer chamber 62 communicates with the outside atmosphere through the air guide port 151. The air guide 151 is sealed by a sealing membrane 60 which is torn off before the ink cartridge is mounted to the ink jet printer when the ink cartridge is not mounted to the ink jet printer.

The air guide groove 63, the buffer groove 617 and the buffer groove 618 are processed on a plane with a larger area, the production process is simpler, the lengths of the air guide groove 63, the buffer groove 617 and the buffer groove 618 can be longer, and the leakage-proof reliability is enhanced.

At least one of the five slow-blocking cavities of the first slow-blocking cavity 61 is filled with porous materials 60 such as sponge, and meanwhile, the second slow-blocking cavity 62 is also filled with the porous materials 60 such as sponge. In this embodiment, the buffer cavities 612 and 614 are filled with sponge, and the buffer cavities 611, 613 and 615 are not filled with sponge, that is, the porous materials 60 are filled in the first buffer cavities 61 at intervals along the flowing direction of the ink. The slow-blocking cavity filled with the sponge forms an absorption cavity which absorbs ink partially permeating into the absorption cavity, and the leakage resistance is further improved.

Still be provided with in the casing 1 from right wall 15 to the protruding annular bulge 16 in the ink holds chamber 2, the elastic membrane setting is in the one end of annular bulge 16, and the right wall 15 of casing 1, annular bulge 16 enclose into deformable cavity 3 with the elastic membrane, resets 31 and is located deformable cavity 3, and the both ends of resetting 31 are connected respectively on casing 1 and elastic membrane, and the restoring force of resetting 31 forces the elastic membrane to remove towards the right wall 15 of casing 1. Preferably, the restoring member 31 is a spring.

Before printing begins, a pump of the printer inflates air into the deformable cavity 3 from the air inflation port 132, the deformable cavity 3 expands, the pressure in the ink accommodating cavity 2 increases, a part of ink flows to the printing head from the ink outlet 131, meanwhile, a part of ink enters the communication cavity 4 from the communication port 42, when the ink in the communication cavity 4 is full of ink, the ink enters the buffer cavity 6 from the buffer channel 5, and the porous material 60 in the buffer cavity 6 can adsorb the ink, so that ink leakage is avoided. When ink flows to the printing head, the pump stops working, the deformable cavity 3 contracts, the gas in the deformable cavity 3 is discharged through the gas charging port 132, and a certain negative pressure is maintained in the ink accommodating cavity 2, so that bubbles in the printing head are sucked into the ink box to remove the bubbles in the printing head.

Because the ink entering the communicating cavity 4 from the communicating port 42 needs to overcome gravity to do work, the arrangement of the slow blocking cavity 6 and the porous material 60 increases the ink flow resistance in the slow blocking cavity 6, so that only a small part of the ink enters the communicating cavity 4 from the communicating port 42, and most of the ink flows to the printing head from the ink outlet 131, thereby improving the bubble removing efficiency in the printing head, and the pump does not need to pressurize the variable cavity 3 for many times. Moreover, as the communication port 42 is formed on the partition wall 41, when the pressure in the ink accommodating chamber 2 is increased, a part of ink can enter the communication chamber 4 from the communication port 42 to reduce the pressure inside the housing 1, so that the problem that the pressure of the liquid acts on the housing 1 in the prior art, and the welding part of the face cover and the housing 1 is cracked to cause ink leakage of the ink box and the air bag is solved.

During printing, the pump is out of work, and the ink that the ink held in chamber 2 is constantly consumed, leads to the ink to hold the negative pressure crescent in chamber 2, and at this moment, in the outside gas got into casing 1 from leading gas port 151, the ink held the atmospheric pressure in chamber 2 and outside atmospheric pressure realization balance, and the ink that hinders in chamber 6, buffer passage 5 and the intercommunication chamber 4 flows back to the ink and holds in chamber 2.

In addition, the number of the first slow-blocking cavities can be one or more than two, and the first slow-blocking cavities are communicated with each other. The partition wall may also include only a vertical extension, and both ends of the vertical extension are connected to the top wall and the bottom wall, respectively. The number of the U-shaped bends of the air guide groove can be changed according to requirements. Porous materials such as sponge can be filled in each first slow-stopping cavity. The above changes also enable the object of the present invention to be achieved.

Ink cartridge and ink jet printer second embodiment

As a description of the second embodiment of the ink cartridge and the ink jet printer of the present invention, only the differences from the above-described ink cartridge and the first embodiment of the ink jet printer will be described below.

Referring to fig. 5, the deformable cavity 230 of the present embodiment is defined by a right wall 231 of the housing, an annular protrusion 232, and a piston 233, and the piston 233 is engaged with an inner circumferential wall of the annular protrusion 232 and is movable along an extending direction of the annular protrusion 232. The restoring force of the restoring member 234 urges the piston 233 to move toward the right wall 231 of the housing. The piston 233 is made of an elastic material such as rubber.

The ink cartridge further comprises a limiting member 235, the limiting member 235 is fixedly mounted at one end of the annular protrusion 232, which is opposite to the right wall 231 of the casing, and two ends of the resetting member 234 are respectively abutted against the piston 233 and the limiting member 235.

Furthermore, the deformable chamber may also be a flexible bag made of a flexible material. The annular protrusion can also extend to the left wall of the shell and be abutted with the left wall or fixedly connected with the left wall by adopting a bonding and welding mode. The above changes also achieve the object of the present invention.

Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, and are not intended to limit the scope of the present invention, as those skilled in the art will appreciate that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended to cover all such modifications, equivalents, and improvements as fall within the true spirit and scope of the invention.

Claims (10)

1. The ink box comprises a shell, an ink accommodating cavity, a deformable cavity, an ink outlet, an inflation inlet and an air guide opening, wherein the ink accommodating cavity and the deformable cavity are arranged in the shell, the ink outlet, the inflation inlet and the air guide opening are arranged on the side wall of the shell, the ink outlet is communicated with the ink accommodating cavity, and the inflation inlet is communicated with the deformable cavity;

the method is characterized in that:

the ink box also comprises a communicating cavity, a buffer channel and a buffer cavity which are communicated with each other;

the ink accommodating cavity and the slow resistance cavity are respectively arranged at two sides of the communicating cavity;

the ink accommodating cavity and the communication cavity are separated by a partition wall, and a communication port is formed in the bottom of the partition wall;

the communicating cavity is communicated with the resistance buffering cavity through the buffering channel, the buffering channel is provided with a first ink inlet end and a first ink outlet end, the buffering channel extends from the first ink inlet end to the first ink outlet end from bottom to top, the first ink inlet end is communicated with the communicating cavity, and the first ink outlet end is communicated with the resistance buffering cavity;

the number of the slow blocking cavities is more than two, and porous materials are filled in at least two slow blocking cavities;

the slow-blocking cavity is communicated with the air guide port, and the air guide port is communicated with the outside atmosphere.

2. The ink cartridge according to claim 1, wherein:

the slow blocking cavity comprises a first slow blocking cavity and a second slow blocking cavity, and the first slow blocking cavity is positioned above the second slow blocking cavity;

the first slow resistance cavity and the second slow resistance cavity are filled with the porous material;

the ink inlet hole of the first slow blocking cavity is connected with the first ink outlet end of the buffer channel, the ink outlet hole of the first slow blocking cavity is communicated with the second slow blocking cavity through an air guide groove, and the air guide groove is formed in the outer surface of the shell;

the air guide port is communicated with the second slow resistance cavity.

3. The ink cartridge according to claim 2, wherein:

the air guide groove is provided with at least one U-shaped bend.

4. The ink cartridge according to claim 2, wherein:

the number of the first slow blocking cavities is more than two, and the first slow blocking cavities are communicated with one another.

5. The ink cartridge according to claim 4, wherein:

wherein two first slowly hinder the chamber and pass through the dashpot intercommunication, the dashpot has the second and advances black end and second play black end, from the second advances black end to second play black end the dashpot extends from bottom to top.

6. The ink cartridge according to claim 5, wherein:

the buffer grooves are arranged in a step shape.

7. The ink cartridge according to any one of claims 4 to 6, wherein:

along the flowing direction of the ink, the porous material is filled in the first slow-resistance cavities at intervals.

8. The ink cartridge according to any one of claims 1 to 5, wherein:

the shell comprises a top wall, a bottom wall, a front wall and a rear wall, and the air inflation port and the ink outlet are arranged on the front wall;

the partition wall includes a vertical extension portion and an inclined extension portion, the vertical extension portion vertically extends downward from the top wall, a first end of the inclined extension portion is connected with the vertical extension portion, a second end of the inclined extension portion is connected with the bottom wall, and the second end of the inclined extension portion is closer to the rear wall than the first end of the inclined extension portion.

9. The ink cartridge according to any one of claims 1 to 5, wherein:

the ink box also comprises a piston and a resetting piece;

the shell comprises a right wall, an annular bulge protruding inwards from the right wall is further arranged in the shell, the annular bulge is located in the ink accommodating cavity, the piston can move along the extending direction of the annular bulge, and the right wall, the annular bulge and the piston enclose a variable cavity;

the restoring force of the restoring member urges the piston to move toward the right wall.

10. An ink-jet printer, comprising a host, wherein the host is provided with an ink box installation position, the ink box is detachably installed on the ink box installation position, the ink-jet printer further comprises a pump which can be connected with the ink box and can inflate and pressurize the ink box, the ink box is the ink box according to any one of claims 1 to 9, and the pump inflates the deformable cavity through the inflation inlet.

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