JP3327046B2 - Ink tank for recording apparatus and ink supply method for ink tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge type ink tank for supplying ink to a recording head such as an ink jet recording apparatus, and a method for refilling ink in the ink tank.

[0002]

2. Description of the Related Art Conventionally, various types of ink tanks of this type have been proposed. For example, as disclosed in Japanese Patent Application Laid-Open No. 63-87242 (known example 1), an ink absorbing material made of a foam material is housed in a plurality of partition chambers. And Japanese Patent Application Laid-Open No. 6-40043
As described in Japanese Unexamined Patent Application Publication No. 2000-163, a storage chamber in which a sealed container is partitioned by partition walls to store an ink absorber, and an ink tank in which an ink chamber that stores only ink is provided.

[0003]

The above-mentioned known example (1)
According to the method (2), since a large amount of ink is stored in the ink tank, it is possible to supply ink to the recording head for a long period of time. In such a case, it is necessary to replace the ink tank with a new one, so that the replacement operation is not only complicated, but also contamination during the operation is cited as a problem, and furthermore, disposal of the used ink tank is costly. It was pointed out that this could cause environmental pollution.

In such a situation, a user of a printer or the like has been requested to provide an ink tank that can be used for a longer period of time by refilling the used ink tank with ink. An ink tank that can perform the refill process cleanly and promptly has been requested.

An object of the present invention is to provide a device which can meet the above-mentioned user needs, and a first object of the present invention is to provide an ink tank which can be used for a long time by replenishing the ink tank. In addition, it is an object of the present invention to provide a device that can prevent environmental pollution because a used ink tank is not disposed of.

A second object of the present invention is to maintain and maintain the ink occluding body by opening only the accommodating chamber accommodating the ink occluding body.
An object of the present invention is to provide an ink tank capable of supplying ink by performing a replacement process.

[0007] A third object of the present invention is to provide an ink tank in which the ink occluding bodies are housed in a plurality of accommodating chambers of the ink tank, and the ink occluding bodies can be replenished by maintenance / replacement processing. .

A fourth object of the present invention is to provide an ink tank in which a partition wall of the ink tank can be detached so that the amount of absorbed ink can be controlled.

[0009] A fifth object of the present invention is to provide an ink tank.
Circle the ink occluder or ink only in multiple storage chambers
An object of the present invention is to provide an ink tank replenishing method that enables smooth replenishment .

[0010]

In order to achieve the above object,
The structural features of the present invention are as follows.

(1) Recording with an ink jet recording device or the like
Cartridge type ink that supplies ink to the head
A tank, wherein the interior of the container is separated by a partition wall into a first storage chamber
And a second accommodating chamber.
Ink is stored in the second storage chamber.
And a lid formed at the top of the container.
Only the area facing the first storage chamber is opened and closed
Ink tank for recording device .

(2) The first housing is provided at a side wall of the container.
Closing the hole for the ink and the injection available-in a region corresponding to the chamber
The ink tank for a recording device according to (1), which is freely opened.
H.

(3) The first storage chamber is formed on a plurality of partition walls.
Therefore, compartmentalize to form multiple compartments,
Each ink occluding body is housed in a compartment.
At the top of the container.
A lid that can be opened and closed is attached to the part corresponding to the
The recording apparatus ink tank according to the above (1).

(4) Recording with an ink jet recording device or the like
Cartridge type ink that supplies ink to the head
A tank, wherein the interior of the container is separated by a partition wall into a first storage chamber
And a second accommodating chamber.
Ink is stored in the second storage chamber.
And a lid formed at the top of the container.
Is openable and closable, and the partition wall is removed from the container.
The first storage chamber and the second storage chamber.
A recording device in which the ink occluding body can be stored in the storage chamber.
Kutank.

(5) An ink supply method for supplying ink to a cartridge type ink tank for supplying ink to a recording head such as an ink jet recording apparatus ,
Partially connected by a through hole and separated by a partition wall
Of an ink tank with multiple compartments
Only the lid of the first storage chamber containing the ink occlusion body is opened.
And remove the used ink occluding material, and rotate the container.
And rotate the first storage chamber to the upper side, and position it to the lower side.
With the air in the second storage chamber containing only the ink to be placed.
In a state in which it is replaced, the injection device inserts into the second accommodation chamber.
To fill the first storage chamber with an ink occluding material.
After pouring the ink into the ink storage body,
Ink tank for closing the first storage chamber.
How to refill ink.

[0016]

[Operation] Based on the above-described structure of the present invention,
What is the procedure for refilling ink?
It is as follows.

That is, regarding (1) and (5), the communication hole
Partitioned by partition walls in a more partially communicating state
Ink in an ink tank with multiple storage chambers
Open the lid of the first storage chamber containing the storage
Take out the ink container and turn the container
The first accommodating chamber is arranged on the upper side, and the second accommodating chamber is located on the lower side.
In a state where the air is exchanged with the air in the
Injecting ink into the second storage chamber, the first storage chamber
Is loaded with an ink occluding body, and the ink occluding body is
And then closing the first storage chamber with the lid
It is to make it.

Regarding the above (2), from the through hole to the injection tool etc.
This is to supply more ink.

Regarding the above (3), the communication holes partially
Of containers separated by a partition wall in communication with
The lids for closing the number of storage chambers are opened, and the plurality of storage chambers are closed.
Chambers containing the ink occluding bodies, and each ink occluding body is provided with a filling device.
After adding ink, close each storage chamber with the lid.
It is to stop.

Regarding (4), the partition wall is removed.
This is for loading the ink occluding body.

In the above (5), the supply needle is passed through the ventilation hole.
Through, and through the ink occluding body, removing the peeling seal
To open the ventilation holes and supply ink from the supply tank.
Things.

[0022]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
I do.

[0023] (Example 1) Ink Tank IT ₁ of this embodiment, FIG. 1 and FIG. 2
As shown, a partition wall 10 is provided in the container 1 to provide a first housing.
A first chamber 1 and a second chamber 12 are formed.
1 includes two partitions so as to be orthogonal to the partition wall 10.
The picture walls 13, 13 are juxtaposed at equal intervals and are adjacent to each other.
Prepares three compartments 11A, 11B, 11C
are doing.

Further, each compartment 11A, 11
B, 11C, for example, a polyurethane material is foamed.
Yellow and maze in the porous body
Ink occlusion body 1 that occludes ink of cyan, cyan, etc.
5A, 15B and 15C are accommodated. In addition, ink
The volume of the porous body that occludes the first storage chamber 11
Is larger than the volume of the
Shrink and house. The porous body is placed in the first accommodation chamber 11.
After being housed, pressers 34a, 34 of the lid 30 described later
b toward the bottom surface where the ink supply port member 20 is located.
It is.

Each compartment 11A (hereinafter referred to as 11)
B and 11C are common to the recording head ink (not shown).
An ink supply port member 20 capable of penetratingly engaging a supply needle is provided.
The ink supply port member 20 has a cylindrical shape.
The top portion 22 covering the filter 21 is
Press up the occlusion body 15A (the same applies to 15B and 15C below)
And distribute the ink by crushing it somewhat
The capillary force is improved. Also, this ink supply port
The ink supply needle described above is liquid-tight in the through hole 23 of the material 20.
The sealing body 24 having the opening 24 ′
Configuration. In addition, the lower part of the partition wall 10 is
The first collecting hole is formed by the communication hole 10 ′ formed in a slot shape.
The second storage room 12 communicated with the storage room 11 is used for replenishment.
Can be stored.

Next, looking at the open top of the container 1,
The second accommodation room 12 is sealed and its weak portion 31
And a lid 30 which can be bent freely from
The inward locking portion 32 formed around the periphery of the container 1
The outer rib 14 provided on the top of the
Closes the top opening of compartment 11A
It is possible.

Further, a ventilation hole 33 is opened in the lid 30.
And an equal amount of outside air according to the ink consumption.
It is configured to be able to flow into the vessel 1.

In the figure, reference numerals 34a and 34b denote the aforementioned
A pusher suspended from the inner surface of the lid 30,
When the top opening of the container 1 is closed by the
A configuration in which the body 15A is biased so as to be partially pressed down;
Have been. Further, the side facing the ink supply port member 20
The pressing element 34a is the pressing element 3 on the side remote from the ink supply port.
4b so as to protrude longer than the ink supply port.
The ink supply port of the ink storage body 15A in cooperation with the material 20
The compression effect on the side is enhanced.

[0029] The use itself of the ink tank IT ₁ is,
Although there is no particular difference from the conventional product, the print operation
Consumes the ink in the container 1 and needs to be replenished
In the case of
This is for refilling the ink in the container 1.

That is, when performing refill processing,
The finger is put on the lid 30 by the manual operation,
The outward rib of the container 1
14 is disengaged from the inward locking portion 32 of the lid 30 as shown in FIG.
At the compartment by the lid 30 as shown by a virtual line.
3A (indicated by an arrow a in FIG. 3A).
_The lid 30 is rotated in _one direction).

This opens compartment 11A.
Arrow b ₁ hand the used ink absorbing member 15A because it is
From the compartment 11A (FIG. 3 (b)
reference).

[0032] In the following, 90 degrees vessel 1 in the arrow _{c 1} direction turning
So that the first storage chamber 11 is located on the upper side,
For example, partitioning by an injection tool ID as shown in FIG.
Second storage chamber from the communication hole 10 of the wall 10 'of the arrow d ₁ direction
12 is filled with ink (see FIG. 3B).

In this case, the container IDA of the injector ID is transparent.
Injecting ink if there is a clear statement and a scale IDB is attached
It is convenient because the amount can be visually checked.

After that, the ink storage material is stored in the first accommodation chamber 11.
15A is inserted, and the ink occluder 1 is
The ink is poured into 5A (see FIG. 3C).

[0035] Finally, the turning of the lid 30 in the arrow _{f 1} direction
And the inward locking portion 32 is engaged with the outward rib 14.
1 and fill it with the fresh ink
The work is completed.

(Embodiment 2) FIGS. 4 and 5 are common to Embodiment 1.
There are many points that differ, so the following discussion focuses on the differences.
I will tell.

[0037] In other words, the ink tank IT ₂ compartments
A hole 16A is opened in the side wall 16 of the
The feature of the present invention is that the
In the above, the ink occluding body 15A is again compartmented
The process until it is accommodated in 11A is common.

Therefore, as the next step, the lid 30 is used.
To close the open part of the compartment 11A.
You.

Next, the ink is filled in the ink occluding body 15A.
In doing so, the sealing seal 17 is peeled off,
Rotate the link IT ₂ by 90 degrees and seal as shown in Fig. 5.
17 is arranged on the upper side to open the through hole 16A.
The injection needle of the injection tool ID is inserted into the compartment 11 from 16A.
A and replenish the ink.
The second storage chamber with the tip of the needle facing the vicinity of the communication hole 10 '.
After injecting the ink into No. 12, the injection needle is pulled back slightly and
By filling the ink into the ink occlusion body 15A,
The ink is effectively stored in the first and second storage chambers 11 and 12.
Can be replenished.
This is for closing the through hole 16A. In addition, this dense
Use a rubber sheet with a large elastic restoring force in place of the sealing seal 17.
If you adopt it, you can supply ink by letting the injection needle spin
This eliminates the need for peeling and resealing.

In this embodiment, the ink occluding body 1
When the replacement of 5A is unnecessary, for example, the sixth embodiment or
About Example 7, as shown in FIG. 12 or FIG.
The lids 1300 and 2400 are kept closed,
What is necessary is to supply ink from the through hole 16A by D.
Needless to say.

[0041] (Example 3) Ink Tank IT ₃ of this embodiment, in FIGS. 6 and 7
It is shown in FIG.
And the first storage chamber 120 and the second storage chamber 120A.
None, only in both accommodation rooms 120, 120A
Characterized in that the occlusion bodies 200 and 300 are accommodated.
Things.

Note that the ink tank IT1 of the first embodiment is
The description of the configuration to be passed is omitted.

That is, in this embodiment, the container 100
The first and second storage chambers 120 and
130 that can be opened and closed all at once
The container 1 is provided detachably with respect to the container 100.
00 in which the outward rib 140 is provided on the outer periphery of the lid 130.
The structure can be disengaged from the direction locking portion 132.

Therefore, when refilling the ink,
Release the inward locking portion 132 from the outward rib 140.
And remove the lid 130 from the top of the container 100
Used from inside the first and second storage chambers 120 and 120A
Extract the used ink occlusion bodies 200 and 300 ,
The ink occlusion bodies 200 and 300 are returned to the respective accommodation chambers 120 and 12 again.
0A, for example, used in
Occlusion body 200 or 300 is relatively damaged
If it can be reused as it is,
Needless to say, this is not necessary.

[0045] In addition, implementation used ink tank IT ₃
Example second accommodating chamber as the ink tank IT ₁ in 1
12 is a container 1 having no ink occluding body.
However, at the time of refill processing,
It is sufficient to fill the ink storage body 300 with
It is self-explanatory.

Next, the operation procedure of the refilling process will be described.
7 will also be described.

That is, the ink tank I in which the ink has been consumed
In T _3, pull the lid 130 in the arrow _{a 3} directions,
By disengaging the inward engaging portion 132 from the outward rib 140
The lid 130 is removed from the container 100, and the
Open the first and second accommodation chambers 120, 120A
(See FIG. 7A).

[0048] In the following, the ink occlusion body in the arrow _{b 3} directions 20
0, 300 to the first and second accommodation chambers 120, 120, respectively.
A is extracted from A (see FIG. 7A).

Next, fresh ink is applied in the directions of arrows c ₃ and d _3.
The first and second storages are performed by urging the storage bodies 200 and 300.
It is accommodated in the chambers 120 and 120A (FIG. 7B).

Next, each ink occlusion body 2 is determined by the injection tool ID.
00 and 300 are sufficiently injected with ink, and finally an arrow e
_The lid 130 is lowered in _three directions to open the top of the container 100.
And the inward engaging portion 132 is connected to the outward rib 140.
By locking, the refill process is completed.
is there.

(Embodiment 4) This embodiment has a lot in common with Embodiment 3 in the previous section.
The main points are described below.
You.

That is, as shown in FIG. 8 and FIG.
Partition wall 110 ′ provided on container 100 of tank IT ₄
Is detachably mounted on the container 100 as shown by a virtual line.
It was worn.

Therefore, in the refill process, the used
Take out the Mino ink absorber 400 and remove the partition wall 110 ′
Arrow g After extracting and removing in _four directions, the inside of the container 100 is
Load the integrated ink occluding body 500 so that it is full
That's what I did.

In this case, the ink storage body 500
This is a supplement to the fifth embodiment shown in FIGS.
If you use the supply pack PS, the handling is performed in a clean state
It becomes possible.

(Embodiment 5) As shown in FIG. 10 and FIG.
The ink occluding body 500 impregnated with ink is thinned.
Laminated plastic sheet or metal foil
Hollow hollow formed by a material that is not breathable
The supply pack PS is stored in the rectangular storage
The storage body 510 has a top wall 511.
And a peeling seal 513
The through hole 512 can be freely opened, and the bottom wall 514 is also provided.
A through-hole 515 is opened, and this through-hole
The hole 515 is configured to be freely openable.

Therefore, in use, it is shown in Example 4.
In the container 100 from which the partition wall 110 'has been removed.
Remove pack 510 and release seals 513 and 516
It is loaded and used.

It should be noted that the ink occluding body 500 is pressurized in advance.
Compression Direction when to be treated to the reduced state, the whole compressed
In addition to selective compression processing in the vertical and horizontal directions
It is also possible to make it.

Further , an opening is provided in the bottom wall 514 and the opening is formed in the opening.
Filters made of flexible materials such as plastic (for example,
1 (see reference numeral 21 in FIG. 1).
You can do it.

Further , the storage housing the ink occluding body 500
The delivery 510 is not only yellow but also magenta or
Adopted one that absorbs ink of a different color such as cyan,
The compartments 11A and 11B in FIG.
Or use by selectively attaching and detaching to 11C respectively
Needless to say, it is a good thing.

[0060] In the ink tank IT ₅ of Example 6 shown in (Example 6) FIG. 12
Has a lid 1300 fixed to the container 1000,
The ink is supplied from the ventilation hole 1330.
As shown in FIG.
An air supply hole ST _{3 is provided at} the top of the supply tank ST ₂ on which T ₁ is vertically provided.
With opening a, the air supply by the peel seal ST ₄
Be those which closes the hole ST _3, it is hitting the use, subjected
The needle supply ST ₁ is moved to the ink storage body 1 in the first accommodation chamber 1400.
500, and peel seal ST as shown by the imaginary line.
₄ and peel off the air supply hole ST ₄ to supply ink.
It is a good thing. Incidentally, the vent holes 1330 and the supply needle ST ₁
There is also a slight gap between the room and
Alternatively, another air hole may be provided in the other part of the lid 1300.
desirable.

In this case, it is necessary to use deaerated ink.
If the ink drops naturally inside the ink storage body 1500
More effectively inside the container 1000 while eating small air bubbles
To increase the reliability of the recording head.
Ink can be supplied. Also, the ink supply amount
About half or less of the volume of the first accommodation room 1400
It can be said that the degree is desirable.

[0062] In the ink tank IT ₆ of Example 7 shown in (Example 7) 13
Is the second container containing the ink storage body 2100 of the container 2000.
The ink storage body 2100 adjacent to the first accommodation room 2200 is
Apply ink directly to the third storage chamber 2300 that is not installed.
To cover 2400 fixed to container 2000 to supply
A supply hole 2410 is opened, and the supplement
The supply hole 2410 is openably closed and used.
In this case, for example, an injector ID described later (see FIG. 14)
The peeling seal 2420 is peeled off using the
Supply ink by inserting injection needle IN into supply hole 2410
Things. In this case, similarly to the sixth embodiment, the supply hole 24 is provided.
10 and a slight gap or lid 2 between injection needle IN
Providing a ventilation hole on the second accommodation room 2300 side of the 400
Is desirable.

It should be noted that the elastic seal is used instead of the peel seal 2420.
Attach a rubber sheet with a large force and insert the injection needle IN with a rubber sheet.
May be used to allow ink to be supplied
is there.

(Eighth Embodiment) FIGS. 14 and 15 show a syringe-shaped ink injector.
Although the ID is shown, its characteristic point is the container IDA.
A stake IDB is marked, and an eye is placed in the longitudinal direction of the injection needle IN.
Those with Sheng _M 1 ~M ₇ in that the Shimegi設, in use
Adjusts the ink supply amount while visually checking the scale IDB
Come, also, ink absorption of the injection needle IN by the scale _M 1 ~M ₇
Detects the depth of penetration into the body and
Ink can be poured into the ink storage,
It can effectively absorb ink over the entire area of the occluding body
It is. The ink injector ID is aluminum
Wrapped in non-breathable material such as aluminum or aluminum laminate
And then refill it with ink that has been degassed in advance.
Preferably, and if necessary, gas permeation.
Degassed storage pack (not shown) made of non-conductive material
Store ink and set it with an empty filler ID
It is good also as a kit.

(Embodiment 9) This embodiment 9 shown in FIG. 16 and FIG.
In the feed set SS, the ink set shown in the seventh embodiment is used.
Various kinds of different color inks are loaded in the filling tool ID, and the base plate S
S ₁ and ink absorber PA
It is placed on the scan board SS _1, injecting tool ID and the ink occlusion body
Recessed a cavity portion _SS 2 ~ SS ₅ that matches the external shape of the PA
To cover them with a cover sheet SS ₆ that, Lee
This is a supply set SS for the
Withdrawal of the cover sheet SS ₆ from the base plate SS ₁ is me
And take out the injector ID or ink storage PA
It can be used.

[0066]

The present invention is as described above.
The remarkable effects brought about by the formation are as follows .

(1) Recycling of Ink Tank Storage accommodated by a partition wall in the container of the ink tank
Replenish the ink absorber or ink easily in the room
It can be used for a long time,
Prevent environmental pollution by not disposing of used ink tanks
It is highly effective because it can be prevented.

(2) Ink Replenishment Processing in Clean State The ink occluder opens and closes the lid of the ink tank container.
With this, the ink is kept in a clean state without being particularly stained.
Can be replenished, and use ink injecting and replenishing tools.
To supply ink without opening and closing the container lid.
Therefore, there is no possibility that the worker is soiled.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view of an ink tank according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional side view of FIG.

FIG. 3 is an explanatory diagram of an ink supply process of the ink tank of FIG. 1;

FIG. 4 is a vertical sectional front view of an ink tank according to a second embodiment of the present invention.

FIG. 5 is an explanatory diagram of an ink supply step of the ink tank of FIG. 4;

FIG. 6 is a vertical sectional front view of an ink tank according to a third embodiment of the present invention.

FIG. 7 is an explanatory diagram of an ink supply step of the ink tank of FIG. 6;

FIG. 8 is a vertical sectional front view of an ink tank according to a fourth embodiment of the present invention.

FIG. 9 is an explanatory diagram of an ink supply step of the ink tank of FIG. 8;

FIG. 10 is a vertical sectional front view of an ink supply pack used in an ink tank according to a fifth embodiment of the present invention.

11 is an overall perspective view of FIG.

FIG. 12 is a longitudinal sectional front view of an ink supply tool and an ink tank according to a sixth embodiment of the present invention.

FIG. 13 is a vertical sectional front view of an ink tank according to a seventh embodiment of the present invention.

FIG. 14 is a side view of an ink injecting device according to an eighth embodiment of the present invention.

FIG. 15 is a side view of the injection needle of the ink injection device of FIG. 14;

FIG. 16 is a plan view of a supply set according to a ninth embodiment of the present invention.

FIG. 17 is a cross-sectional view of FIG.

[Explanation of symbols]

_{IT 1, IT 2, IT 3} , IT 4, IT 5, IT 6 ink tank 1,100,1000,2000 container 10,110,110 'partition wall 11,12,120,120A, 2200,2300
Housing room 30, 130, 1300, 2400 Lid 16A Through-hole 11A, 11B, 11C Compartment 15A, 15B, 15C, 200, 300, 400, 5
00, 1500, 2100, PA Ink occlusion body 510 Container 20, 515 Ink supply port member PS Supply pack ID Filler ST Supplyer SS Supplyer set

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Eiko Yanagita 2-4-1 Nishi Shinjuku, Shinjuku-ku, Tokyo Inside Seiko Epson Corporation (72) Inventor Yoshinori Miyazawa 2 Nishi-Shinjuku, Shinjuku-ku, Tokyo No.4-1, Seiko Epson Corporation (56) References JP-A-7-101071 (JP, A) JP-A-7-17052 (JP, A) JP-A-4-197646 (JP, A) JP-A-6-246926 (JP, A) JP-A-6-226990 (JP, A) JP-A-8-67012 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B41J 2 / 175

Claims (5)

(57) [Claims] 1. A cartridge type ink tank for supplying ink to a recording head of an ink jet recording apparatus or the like, wherein the inside of the container is separated from a first storage chamber by a partition wall .
Partitioned formed in two of the storage chamber, this first storage chamber is accommodated ink occlusion body, only ink in the second accommodating chamber
Accommodated so Rutotomoni, the top of the vessel to the formed lid your <br/> have only the region facing the first housing chamber openably <br/> recorded device for an ink tank was. 2. The container according to claim 2 , wherein the side wall of the container is connected to the first storage chamber.
2. The ink tank for a recording apparatus according to claim 1, wherein a through-hole through which ink can be injected into a corresponding area is openably closed. 3. A plurality of compartments are formed by partitioning the first storage chamber by a plurality of partition walls, and the ink occluding bodies are respectively stored in the compartments, and the plurality of compartments are provided at the top of the container. 2. The ink tank for a recording apparatus according to claim 1, wherein a lid that can be opened and closed is attached to a corresponding portion. 4. A recording head for an ink jet recording apparatus or the like.
Cartridge type ink tank that supplies ink to the
And a partition wall between the first storage chamber and the first storage chamber.
2 and a first compartment is formed in the first compartment.
The ink is stored in the second storage chamber, and only the ink is stored in the second storage chamber.
At the same time, the lid formed at the top of the container is opened.
A first storage chamber and a second storage chamber that are configured to be able to be closed and that the partition wall is detachably attached to the container;
Can accommodate a is a recording apparatus for an ink tank of the ink occlusion body to. 5. An ink replenishing method for replenishing ink to a cartridge type ink tank for supplying ink to a recording head of an ink jet recording apparatus or the like, wherein the ink is partially defined by a partition wall in a communicating state by a communicating hole. Opening only the lid of the first storage chamber containing the ink occluding body of the ink tank having the plurality of storage chambers of the container,
The used ink storage body is taken out, the container is turned, the first storage chamber is disposed on the upper side, and the first storage chamber is replaced with air in the second storage chamber storing only the ink located on the lower side. Injecting ink into the second storage chamber with the injection tool, loading an ink occluding body into the first storage chamber,
An ink replenishing method for an ink tank, wherein the first storage chamber is closed by a lid after ink is poured into the ink storage body.