KR20170006246A - Eco Continuous Ink Supply Box - Google Patents

Abstract

The present invention relates to a continuous ink supply box. The continuous ink supply box comprises: an ink pack cassette including an ink pack to accommodate ink, and a housing to support the ink pack to detachably be mounted on a continuous ink supply box; a case to support a plurality of the ink pack cassettes having different colors; a connector unit which corresponds to the ink pack cassettes, and detachably mounted on one side of the case to supply ink to an ink cartridge disposed outside the case; and a cushion tank disposed between the connector unit and each ink pack cassette to accommodate an amount of target ink to continuously supply an amount of ink supplied to the ink cartridge. According to the present invention, a means of preventing a flow of ink between the ink cartridge and the ink supply box to maintain cleanliness is included. The ink cartridge and an ink supply line of the ink supply box is able to be detached to continuously use the ink cartridge to be environmentally friendly and to provide an elegant appearance.

Description

Eco Continuous Ink Supply Box [0002]

The present invention relates to a continuous ink supply box, and more particularly to a continuous ink supply box in which the structure of a four-color ink pack cassette device capable of storing color ink and supplying the same to a printer is improved.

A printer or a plotter is generally used for printing images and texts desired by connecting with an IT device such as a computer. In such printers and the like, ink is required as means for forming images and outputs, The image desired to be supplied can be outputted. Therefore, a printer or the like is provided with ancillary devices such as a cartridge for supplying ink.

2. Description of the Related Art [0002] Generally, an ink supply method for a printer includes a method in which a cartridge, which is preliminarily manufactured in a factory, is directly mounted on a printer, and a method in which ink consumed in the printer is directly or indirectly supplied Is known.

The inkjet printer is provided with a cartridge for supplying ink and a nozzle for discharging ink from the printer. When a small amount of ink is filled in the cartridge and the filled ink is completely consumed, the ink cartridge needs to be replaced with a new cartridge .

On the other hand, since the amount of ink stored in the cartridge is extremely small, the use time is not long, and the price is high, so that the used cartridge is used by recharging the used cartridge rather than purchasing a new cartridge. However, The period of use is short, and inconveniences arise in use.

In addition, printers can be divided into black and white printers and color printers. The black-and-white printer usually contains only black powder capable of forming black letters or the like inside a cylindrical cartridge. On the other hand, in order to give a color effect to printed matter in a color printer, inks having four kinds of cyan (C), yellow (Y), magenta (M) A container which is supplied with a cartridge and supplies these four colors of ink, and the like. The present invention relates to a case of supplying ink to a color printer other than a monochrome printer.

That is, although a method of directly attaching the color cartridge to the printer and supplying the color cartridge is an easy and convenient method widely known, when the ink is consumed quickly and the ink of one color is exhausted in the case of the color cartridge, There is a disadvantage that the ink use cost is greatly increased.

In order to reduce the ink usage cost, a continuous ink supply apparatus (SIS, Continuous Ink System, / CISS, etc.), which is a method of continuously supplying ink through an ink supply line containing a tube or the like in an ordinary container or pack, , Continuous Ink Supply System, Continuous Flow System, Automatic Ink Refill System, Bulk Feed Ink System and Off-axis Ink Delivery System.

Such a continuous ink supply device is provided with a set of bottles or packs (hereinafter, referred to as an " ink continuous supply box " or " ink box ") which is an ink storage container having four colors, as in Patent No. 10-1215197 , Such an ink supply box includes an ink pack cassette containing four-color inks and a supply line including a connector capable of connecting the ink supply box and the ink cartridge.

In the prior art, since the ink box and the ink cartridge are directly connected to each other and the ink box and the ink cartridge can not be attached and detached, the ink cartridge and the ink cartridge need to be replaced, or the ink box and the ink cartridge are attached together, Installation is also inconvenient.

Further, there is a possibility that the supply of ink is disconnected when the ink pack or the like is connected to the ink box and the ink cartridge is connected only to the ink supply line.

<Technical Literature>

Patent Publication No. 10-2010-0020090 (Feb. 22, 2010)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a continuous ink supply box having a connector portion having means for preventing the flow of ink between the ink cartridge and the ink supply box.

Another object of the present invention is to provide an environmentally friendly continuous ink supply box in which the ink cartridge and the ink supply line of the ink supply box can be attached and detached, so that the ink cartridge can be continuously used.

It is still another object of the present invention to provide a continuous ink supply box capable of continuously supplying ink without interruption by having a cushion tank capable of storing a certain amount of ink between an ink pack cassette and a connector portion inside an ink supply box .

It is still another object of the present invention to provide a continuous ink supply box capable of holding the ink pack cassette in a stable and precise position.

It is another object of the present invention to provide a continuous ink supply box capable of continuously supplying ink even in the course of replacing the ink by providing a cushion tank in the middle and preventing the ink from flowing back from the print side to the pack side .

A continuous ink supply box, comprising: an ink pack cassette including an ink pack accommodating ink; and a housing detachably connected to the continuous ink supply box by supporting the ink pack; A case provided with a cassette attaching / detaching chamber provided corresponding to the ink pack cassette so as to be able to slideably detach the ink pack cassette having a plurality of different colors to support the ink pack cassette; A connector portion provided on one side of the case so as to be able to supply ink to the ink cartridge provided outside the case, corresponding to the ink pack cassette; And a cushion tank which is provided between each of the connector portions and each of the ink pack cassettes and accommodates a target amount of ink so as to continuously supply a supply amount of ink supplied from the ink pack cassette to the ink cartridge, Wherein the cushion tank is disposed in a cushion tank chamber adjacent to the cassette attachment / detachment chamber, and the connector portion includes a female connector and a male connector engaging with the female connector, Wherein one of the female connector and the male connector is coupled to any one of the ink cartridge and the case, and the other of the female connector and the male connector is coupled to the other of the ink cartridge and the case So that either one of the female connector and the male connector is connected to the other Wherein the ink container cassette is coupled with the cushion tank when the ink pack cassette is attached to and detached from the case, The ink pack cassette or the case is provided with a fastening and retaining portion so that the ink pack cassette or the case can maintain the state. The cushion tank including an enclosed hexahedron, an inflow pipe coupled to the upper side of the cushion tank so as to allow ink to flow from the ink pack cassette to the bottom of the hexahedron, A discharge pipe coupled to an upper side of the cushion tank to supply ink stored in the cushion tank to the print; and a pressure chamber formed inside the cushion tank to maintain a height of ink stored in the space formed in the pressure chamber. Is achieved by the continuous ink supply box.

The apparatus may further include a sensor provided in the ink pack cassette to display a remaining amount of the ink pack, and a receiver provided in the case and capable of sensing the transmitter.

Preferably, the ink cartridge further includes a cassette elastic member coupled to the case and urging the ink cartridge in a direction to separate the ink pack cassette from the case.

It is another object of the present invention to provide a continuous ink supply box which is provided with an ink pack which is provided so as to be capable of accommodating ink and a housing which is provided so as to be detachably coupled to the continuous ink supply box by supporting the ink pack, Wow; A case provided with a cassette attaching / detaching chamber provided corresponding to the ink pack cassette so as to be able to slideably detach the ink pack cassette having a plurality of different colors to support the ink pack cassette; A connector portion provided on one side of the case so as to be able to supply ink to the ink cartridge provided outside the case, corresponding to the ink pack cassette; And a cushion tank which is provided between each of the connector portions and each of the ink pack cassettes and accommodates a target amount of ink so as to continuously supply the ink amount supplied from the ink pack cassette to the ink cartridge, Wherein the cushion tank includes a closed hexahedron and includes an inlet pipe coupled to the upper side of the cushion tank so as to allow ink to flow from the ink pack cassette to the bottom of the hexahedron, A discharge pipe coupled to an upper side of the cushion tank to supply ink stored in the cushion tank to the print; and a pressure chamber formed inside the cushion tank to maintain the height of the ink stored in the space formed in the pressure chamber. In the ink supply box.

The inflow pipe may include an inflow pipe main body; A cylindrical inflow bumper on an end side of the inflow pipe body; A bumper discharge port provided under the inflow bumper; And a check plate for opening and closing the bumper discharge port.

Further, it is preferable that the bumper outer sealing member formed to protrude from the plate surface of the lower side of the inflow bumper to the outside of the bumper discharge port, and the bumper inner sealing member protruding from the lower side plate surface of the inflow bumper to the inside of the bumper discharge port Do.

According to the present invention, it is possible to provide a continuous ink supply box capable of maintaining cleanliness by providing means for preventing the flow of ink between the ink cartridge and the ink supply box.

Further, since the ink cartridge and the ink supply line of the ink supply box can be attached and detached, the ink cartridge can be continuously used, thereby providing a continuous ink supply box that is environmentally friendly and makes the appearance more beautiful.

Further, it is possible to provide a continuous ink supply box which is provided with a cushion tank capable of storing a certain amount of ink between the ink pack cassette and the connector portion inside the ink supply box, so that the ink can be continuously supplied without interruption.

Further, it is possible to provide a continuous ink supply box in which the ink pack cassette can be stably and accurately held in engagement.

Further, a cushion tank may be provided in the middle to provide a continuous ink supply box that can be continuously supplied even when ink is being replaced, and can prevent the ink from flowing back from the print side to the pack side.

1 is a perspective view showing an ink supply box according to an embodiment of the present invention,
Fig. 2 is an exploded perspective view of Fig. 1,
3 is a perspective view of the upper case,
4 is a schematic view for explaining the sensor unit,
5A to 5C are cross-sectional views illustrating a connector according to an embodiment of the present invention,
6 is a partial cutaway perspective view schematically showing an ink supply box according to an embodiment of the present invention,
7A is a perspective view of the cushion tank,
7B and 7C are a cross-sectional view and an enlarged view of the cushion tank,
FIG. 7D is a perspective view of the inlet pipe with the check plate removed,
7E and 7F are sectional views for explaining the operation of the cushion tank.

A continuous ink supply box 100 (hereinafter, referred to as 'ink box') according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6. FIG.

FIG. 1 is a perspective view illustrating an ink supply box according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, FIG. 3 is a perspective view of an upper case, FIGS. 5A to 5C are cross-sectional views illustrating a connector according to an embodiment of the present invention, and FIG. 6 is a partially cutaway perspective view schematically showing an ink supply box according to an embodiment of the present invention Fig. 7A is a perspective view of the cushion tank, Figs. 7B and 7C are a cross-sectional view and a substantial enlarged view of the cushion tank, Fig. 7D is a perspective view of the inflow pipe, Sectional view for explaining the operational process of the tank.

As shown in FIG. 1 for the sake of convenience, as shown in FIG. 1, a rectangular parallelepiped shape having a vertically long rectangular shape with a slightly lower height and a longer left and right length than the front and rear lengths is defined as a 'Z' And the horizontal direction of the 'XZ' plane is defined as a 'Y' axis,

The ink box 100 according to an embodiment of the present invention includes a housing (not shown) provided to be removably coupled to the ink box 100 by supporting an ink pack (not shown) An ink pack cassette (130) having a plurality of ink cartridges A case 110 for supporting the ink pack cassette 130 having the plurality of different colors; A connector unit 200 provided at one side of the case 110 so as to be able to supply ink to the ink cartridge 20 provided outside the case 110 and corresponding to the ink pack cassette 130; The amount of ink to be supplied to the ink cartridge 20 from the ink pack cassette 130 provided between each connector unit 200 and each of the ink pack cassettes 130 can be continuously supplied, And a cushion tank (150) for receiving the cushion.

The case 110 forms an appearance of the ink box 100 and supports the respective components. The case 110 includes a cassette attaching / detaching chamber 117a for detachably receiving the ink pack cassette 130 having four color ink colors on the inside thereof, four cushion tanks 150 (corresponding to the respective ink pack cassettes 130) A cushion tank chamber 117c in which the supply lines 173 and 175 are disposed and a connector chamber 117b in which a connector portion 200 to be coupled with the ink cartridge 20 is disposed, Respectively.

As shown in FIG. 2, the case 110 is vertically separated along the 'Y' axis, and is separated into an upper case 115 and a lower case 113. Here, the upper case 115 and the lower case 113 can be changed in various sizes as long as they can separate from each other and can combine the components. That is, in this embodiment, the partition 117 is formed in the upper case 115, but it is needless to say that the partition 117 is formed in the lower case 113.

The lower case 113 is provided with the ink pack cassette 130 or the case 110 so that the ink pack cassette 130 can be held in an external force even when the ink pack cassette 130 is positioned at a predetermined position and is coupled to the case 110. [ And a fastening / holding part 190 provided on any one of the first and second fastening parts. A stopper 191 coupled to the case 110 so as to protrude and retract by the elastic member 193 and a plug 195 for fixing the elastic member 193, But it is needless to say that the present invention can be variously modified within the scope of the present invention.

Since the ink pack cassette 130 has been described in detail in the applicant's application, a detailed description thereof will be omitted. The ink pack cassette 130 generally includes four types of cyan (C), yellow (Y), magenta (M), and magenta (K) (Not shown) in which the ink packs (not shown) are accommodated, respectively, so as to be detachable to and from the cassette attaching / detaching chamber 117a. When all of the ink accommodated in the ink packs is used, It is possible to use the ink pack cassette 130 by combining it.

In order to easily separate the ink pack cassette 130 from the case 110 during the process of detaching and attaching the ink pack cassette 130, And a cassette spring 130s coupled to the ink pack cassette 110 to elastically press the ink pack cassette 130 outward.

The cushion tank 150 is a place for storing a kind of buffering concept ink in the case 110 so as to continuously supply the ink between the ink pack cassette 130 and the connector unit 200. That is, when ink is temporarily not supplied as in the case of replacing the ink pack cassette 130, ink is supplied to the ink cartridge 20 by utilizing the ink stored in the cushion tank 150 by the ink cartridge 20 .

It is possible to store a certain amount of ink in the cushion tank 150 so that the ink can be continuously supplied to the ink cartridge 20 even when the ink pack cassette 130 is instantly replaced and the ink is not supplied.

In this cushion tank 150, a small floating switch used in a toilet or the like is preferably attached so that a certain amount of ink can be always filled. Therefore, a certain amount of ink can be automatically filled in the cushion tank 150 after the ink pack cassette 130 is exchanged.

The cushion tank 150 has a bottom not shown and is preferably provided with a hexagonal closed shape as in the embodiment, but may be provided in various shapes including a cylindrical shape as required.

The cushion tank 150 has a tank main body 151 made of a synthetic resin containing a transparent material and made of a transparent material so that the appearance of the cushion tank 150 can be easily grasped, It is preferable that the first and second clamps 153a and 153b are formed to protrude outwardly so as to be coupled and fixed so as to have a shape in which a T-shaped cross section to a T-shaped cross-section can be engaged.

The cushion tank 150 is provided with an inflow pipe 155 coupled to the upper side of the cushion tank 150 to supply ink to the inner space and a discharge pipe 159 coupled to the upper side of the cushion tank 150 to discharge the stored ink to the print side. Respectively.

The cushion tank 150 is hermetically sealed by the inflow pipe 155 coupled to the ink pack (not shown) and the discharge pipe 159 coupled to the print side, (See "Fair" in FIGS. 7B, 7E, and 7F) existing in the space inside the cushion tank 150, such as an air pocket formed when the container is inverted into the water without being introduced into the inner space, So that the pressure of the air can act on the stored ink.

Here, the inflow pipe 155 includes: a cylindrical inflow pipe main body 155a having a hollow inner flow path; A cylindrical inflow bumper 155b at the lower end of the inflow pipe body 155a; A bumper discharge port 155b1 opened below the inflow bumper 155b and serving as a passage through which the ink flowing into the inflow bumper 155b flows into the cushion tank 150; A check plate 155c for opening and closing the bumper discharge port 155b1 and a check plate supporting member 155d extending from a lower central region of the inflow pump and having a latching protrusion formed at a lower end thereof to support the check plate 155c .

The inflow bumper 155b is provided with a bumper outer sealing member protruding from the bottom surface of the inflow bumper 155b and surrounding the outside of the bumper discharge port 155b1 from the bottom side of the inflow bumper 155b And a bumper inner sealing member protruding from the inner side of the bumper outlet 155b1.

With this structure, the process of preventing ink from being stored in the cushion tank 150 and preventing backflow will be described in detail with reference to FIGS. 7E and 7F.

7E, when ink flows into the inflow pipe 155, ink flows from the bottom of the cushion tank 150 through the inflow pipe main body 155a to the inflow bumper 155b and the bumper discharge port 155b1, (See 'H1' in FIG. 7E) is equal to the pressure of the air (see 'Fair' in FIG. 7E) stored in the tank pressure chamber 157 and is stored in the discharge pipe 159 The height of the stored ink is lowered and at the same time the air pressure of the tank pressure chamber 157 is lowered so that the ink of the ink pack (not shown) is supplied through the inflow pipe 155 to the cushion tank 150 The height of the stored ink can be kept substantially constant as long as there is ink that can be supplied from the ink pack (not shown).

If the height of the print is much higher than the ink pack cassette 130 or if the ink flows backward in the discharge pipe 159 due to sudden external impact or the like as shown in Fig. 7F, (Refer to 'F2' in FIG. 7F) of the ink stored in the ink container 150 increases, but rises according to the height of the ink of the check plate 155c made of a very light and flexible material (for example, silicone) And closes the outlet 155b1. In this process, the bumper inner and outer sealing members 155b2 and 155b3 protruding from the inner and outer sides of the bumper discharge port 155b1 perform a sealing function like the oil seal and prevent the ink from flowing back to the inflow pipe side.

In other words, it is possible to always store the constant ink in the cushion tank 150 by the simple structure, and to prevent the ink from flowing back in the event of an accident.

The ink of the ink pack cassette 130 is supplied to the ink pack cassette 130 - the cushion tank 150 - the connector portion 200, and the ink supply line 170, through which the ink can flow, Respectively. An upstream supply line 173 is provided between the ink pack cassette 130 and the cushion tank 150 and a downstream supply line 175 is provided between the cushion tank 150 and the connector unit 200.

In the ink pack cassette 130, as shown in Fig. A sensor 183 for sensing the remaining amount of the ink and detecting the remaining amount of the ink is provided in the case 110 for sensing the emitting portion 183, (180). The sensor unit 180 may be provided with various sensors including an optical sensor. The sensor unit 180 may display the remaining amount of ink in terms of%, and may output an alarm (for example, Blinking indicator, pop-up indicator, etc.) may be displayed.

The remaining amount of the ink can be easily grasped by the sensor unit 180.

The connector unit 200 includes a female connector 230 and a male connector 210 engaged with the female connector 230. One of the female connector 230 and the male connector 210 includes a male connector 230, The other one of the female connector 230 and the male connector 210 is coupled to either the cartridge 20 or the case 110 and the other one of the ink cartridge 20 and the case 110 When the female connector 230 and the male connector 210 are separated from each other, the ink contained in the female connector 230 and the male connector 210 is prevented from flowing to the outside, It is preferable to include means 213 and 233.

The female connector (230) and the male connector (210) are provided with flow preventing means (213, 233) for preventing the ink in the supply lines (173, 175) It is preferable that the female connector 230 and the male connector 210 are connected to each other in a state where the female connector 230 and the male connector 210 are engaged with each other to communicate the ink supply line 170.

5A and 5B, the male connector 210 includes a male connector main body 211 having an outer appearance and having a space (not shown) so that ink can flow in the center, A water check ball 213 which is coupled to the center of the water connector main body 211 and interrupts the flow of the ink, and a water check ball 213 A check ball seat 214 coupled to the center of the male connector body 211 so as to intermittently flow the ink, and a check ball 213 which elastically presses the check ball 213 in a direction in which ink does not flow A check spring 218 and an abutment member 214a for preventing sealing of the oil in an area engaged with the female connector 230 and an occasional receiving portion 216 to which the abutting member 214a is engaged, And a male coupling part 215 coupled to the connector 230.

5A and 5C, the female connector 230 includes a female connector body 231 having an outer appearance and a space (not shown) for allowing ink to flow through the center, and a female connector body 231 An arm check valve 233 coupled to the center of the female connector main body 231 to intermit the flow of the ink, A female check valve seat 234 coupled to the center of the female connector body 231 so as to be able to intermittently flow the ink in contact with the female check valve 233, An arm member 234a for preventing sealing of the oil in an area engaged with the male connector 210, an oblique receiving portion 236 to which the yoke member 234a is coupled, And a female body part 235 which is mutually coupled with the male connector 210. One side of the female check valve 233 is in contact with the female check valve seat 234 and is cylindrical in shape extending through the female check valve seat 233 and having a female check through hole 233b penetrating the lower side thereof. Check upper hole 233a is formed so as to penetrate through the check check lower end groove 233a.

Here, each of the fastening portions 215 and 235 can selectively determine various methods such as having male and female stopping hooks.

5A, when the female connector 230 and the male connector 210 are engaged with each other by the female connector portion 235 and the male connector portion 215, the female check valve 233, And the check balls 213 are in contact with each other to push out the respective springs 218 and 238 to form a flow path so that the ink can be supplied. That is, the ink may be supplied to the path of the right arm nozzle 232, the arm check upper hole 233a, the arm check center hole 233b, the arm check lower groove 233c, and the water nozzle 212.

When the user separates the fastening portions 215 and 235 of the female connector 230 and the male connector 210, the respective springs 218 and 238 move the check ball 213 and the female check valve 233 So as to block the ink flow path. In addition, the outer appearance of the connector portion 200 is shown in FIGS. 1 and 2 as a cylindrical shape. In FIG. 6, the outer shape of the connector portion 200 is a hexahedron shape.

In other words, the connector unit 200 is provided so that the ink cartridge 20 and the ink box 100 according to the present invention can be attached to and detached from each other without leakage or flow of ink, Unlike the prior art, the box 100 does not need to have a separate ink supply line exposed to the outside, which not only improves the appearance, but also facilitates the movement, storage and transport of the ink box 100, .

Thus, according to the present invention, it is possible to provide a continuous ink supply box capable of maintaining cleanliness by providing a means for preventing the flow of ink between the ink cartridge and the ink supply box.

Further, since the ink cartridge and the ink supply line of the ink supply box can be attached and detached, the ink cartridge can be continuously used, thereby providing a continuous ink supply box that is environmentally friendly and makes the appearance more beautiful.

Further, it is possible to provide a continuous ink supply box which is provided with a cushion tank capable of storing a certain amount of ink between the ink pack cassette and the connector portion inside the ink supply box, so that the ink can be continuously supplied without interruption.

Further, it is possible to provide a continuous ink supply box in which the ink pack cassette can be stably and accurately held in engagement.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the invention. will be. The scope of the invention will be determined by the appended claims and their equivalents.

100: ink supply box 110: case
113: Lower case 115: Upper case
117: partition wall 117a: cassette attaching / detaching chamber
117b: connector chamber 117c: cushion tank chamber
130: ink pack cassette 130s: cassette spring
150: cushion tank 151: tank body
153a, b: first and second clamps 155: inlet pipe
155a: inlet pipe body 155b: inlet bumper
155b1: bumper outlet 155b2: bumper outer sealing member
155b3: bump inner sealing member 155c: check plate
155d: check plate supporting member 157: tank pressure chamber
159: Exhaust pipe
170: ink supply line 173: upstream supply line
175: downstream supply line 180: sensor section
183: transmitting part 185: receiving part
190: fastening holding portion 191: stopper
193: elastic member 195: plug
200:
210: male connector 211: male connector body
212: water nozzle 213: water check ball
214: number check ball seat 215: water coupling part
216: a part of the occasionally required part 214a:
218: Number check spring
230: female connector 231: female connector body
232: female nozzle 233: female check valve
233a: Female check center hole 233b: Female check upper hole
233c: Cancer check bottom groove
234: Female check valve seat 235:
236: a part of the implied part 234a:
238: Female check spring

Claims (6)

In the continuous ink supply box,
An ink pack cassette including an ink pack provided to be capable of receiving ink, and a housing which is detachably coupled to the continuous ink supply box by supporting the ink pack;
A case provided with a cassette attaching / detaching chamber provided corresponding to the ink pack cassette so as to be able to slideably detach the ink pack cassette having a plurality of different colors to support the ink pack cassette;
A connector portion provided on one side of the case so as to be able to supply ink to the ink cartridge provided outside the case, corresponding to the ink pack cassette;
And a cushion tank which is provided between each of the connector portions and each of the ink pack cassettes and accommodates a target amount of ink so as to continuously supply a supply of ink amount supplied from the ink pack cassette to the ink cartridge,
Wherein a space for accommodating the ink pack cassette and the cushion tank is defined inside the case, the cushion tank is disposed in a cushion tank chamber adjacent to the cassette attachment /
Wherein the connector portion includes a female connector and a male connector engageable with the female connector, wherein any one of the female connector and the male connector is coupled to any one of the ink cartridge and the case, The other one of the ink cartridge and the case is coupled to another one of the case so that when the one of the female connector and the male connector is separated from the other one, the ink accommodated in each of the female connector and the male connector does not flow to the outside And a flow preventing means provided,
Wherein the ink pack cassette or the case has a fastening and retaining portion so that the ink pack cassette can be maintained in a state of being engaged with the cushion tank in the process of attaching / detaching the ink pack cassette to / from the case.
Wherein the cushion tank has an airtight shape having a bottom and is connected to the upper side of the cushion tank so as to allow ink to flow in from the ink pack cassette to the bottom, A discharge pipe connected to the upper side of the cushion tank to supply ink stored in the cushion tank to the cushion tank, and a pressure chamber formed inside the cushion tank, the ink stored in the space formed in the pressure chamber, And the height is maintained. The method according to claim 1,
Further comprising: a sensor provided on the ink pack cassette to display a remaining amount of the ink pack; and a sensor provided in the case and capable of sensing the emitting unit. The method according to claim 1,
Further comprising a cassette elastic member coupled to the case and elastically pressing the ink pack cassette in a direction to separate the ink pack cassette from the case. In the continuous ink supply box,
An ink pack cassette including an ink pack provided to be capable of receiving ink, and a housing which is detachably coupled to the continuous ink supply box by supporting the ink pack;
A case provided with a cassette attaching / detaching chamber provided corresponding to the ink pack cassette so as to be able to slideably detach the ink pack cassette having a plurality of different colors to support the ink pack cassette;
A connector portion provided on one side of the case so as to be able to supply ink to the ink cartridge provided outside the case, corresponding to the ink pack cassette;
And a cushion tank which is provided between each of the connector portions and each of the ink pack cassettes and accommodates a target amount of ink so as to continuously supply a supply of ink amount supplied from the ink pack cassette to the ink cartridge,
Wherein the cushion tank has an airtight shape having a bottom and is connected to the upper side of the cushion tank so as to allow ink to flow in from the ink pack cassette to the bottom, A discharge pipe connected to the upper side of the cushion tank to supply ink stored in the cushion tank to the cushion tank, and a pressure chamber formed inside the cushion tank, the ink stored in the space formed in the pressure chamber, And the height is maintained. 6. The method of claim 5,
The inflow pipe includes an inflow pipe main body; A cylindrical inflow bumper on an end side of the inflow pipe body; A bumper discharge port provided under the inflow bumper; And a check plate for opening and closing the bumper discharge port. 6. The method of claim 5,
Further comprising a bumper outer sealing member formed to protrude from the lower surface of the inflow bumper to the outside of the bumper discharge port and a bumper inner sealing member protruding from the lower surface of the inflow bumper to the inside of the bumper discharge port Continuous ink supply box.

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