JP2006281590A - Device and method for recovering ejection defect, and ink jet recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for recovering ejection defects which is equipped with a full capacity of recovery without hindering cost reduction of an ink jet recorder, and to provide a method for recovering ejection defects. <P>SOLUTION: A cartridge for ejection defect recovery 41 consists of a bag 42 which stores a recovery liquid, a pressuring member 43 which crushes the bag 42 to press and discharge the recovery liquid in the bag 42, and a case 44 which stores these bag and pressuring member. A shape and a size of the case 44 are made nearly equal to a shape and a size of an ink cartridge attached detachably to the ink jet recorder. The cartridge for ejection defect recovery 41 is fitted detachably to a cartridge mounting part where the ink cartridge is mounted. When the pressuring member 43 is manually pressed, the bag 42 is crushed and the recovery liquid inside is sent into a nozzle of a recording head through an ink feeding needle 36 connected to a discharge part 46. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an ejection failure recovery apparatus and method for recovering an ejection failure of an ejection type recording head, and an ink jet recording apparatus.

  2. Description of the Related Art A so-called ink jet recording apparatus is known in which ink is ejected as droplets from a nozzle of a recording head and this is attached to a recording medium, for example, a sheet to record an image. The ink jet recording apparatus is provided with an ink tank which is a liquid storage container for storing ink, and ink is supplied from the ink tank to the recording head. The recording head includes, for example, a vibration plate driven by a piezo element, and draws ink from an ink tank to a nozzle and ejects the ink from an ejection port using a pressure change caused by vibration of the vibration plate.

  If such an ink jet recording apparatus is not used for a long period of time, highly viscous ink adheres to the inside of the nozzle, particularly in the vicinity of the discharge port, and bubbles and dust are likely to clog the nozzle. It is absorbed and causes a decrease in discharge force. Such ejection failure of the nozzle hinders proper ink ejection or causes the ejection direction to change. If this is left unattended, it causes print quality degradation such as streak irregularities and density irregularities. Therefore, in order to recover this ejection failure, the inkjet recording apparatus is provided with various ejection failure recovery devices (for example, see Patent Document 1 and Patent Document 2 below).

The ejection failure recovery devices described in Patent Literature 1 and Patent Literature 2 below recover ejection failures by sucking ink or the like clogged in the nozzles of the recording head or pressurizing and feeding ink to the nozzles.
JP-A-5-84926 Japanese Patent Laid-Open No. 11-286124

  However, in the method for recovering the ejection failure by suction, a suction device such as a suction pump must be provided in the ink jet recording apparatus, which is an obstacle to cost reduction of the ink jet recording apparatus. In addition, in the method in which ink is pressurized and sent to the nozzle for discharge, in addition to wasteful consumption of the ink that should be used for image recording, the recovery process is performed with the ink that caused the discharge failure. There was concern that the ability to recover was not sufficient.

  An object of the present invention is to provide an ejection failure recovery apparatus and method and an ink jet recording apparatus having sufficient recovery capability without hindering cost reduction.

  An ejection failure recovery apparatus according to the present invention includes a recording head having a nozzle for ejecting ink, and a mounting portion on which an ink tank for storing the ink is detachably set, and is supplied from the ink tank through a supply path. Used in an inkjet recording apparatus that records an image by ejecting the ink from the recording head onto a recording medium, and can be mounted on the mounting portion in the ejection failure recovery apparatus that recovers the ejection failure of the recording head. A liquid storage container for storing a liquid for recovering a defect, and connected to the supply path when the liquid storage container is mounted on the mounting portion, and discharges the liquid from the liquid storage container to the supply path. A liquid discharge section, and a pressurizing mechanism that pressurizes the liquid in the liquid storage container and supplies the liquid to the nozzle through the liquid discharge section. And butterflies.

  The liquid storage container includes a flexible bag body that stores the liquid, and a case that accommodates the bag body and can be attached to the mounting portion, and the pressurizing mechanism includes the case It is preferable to have a pressing member that is disposed inside and crushes the bag body by displacement.

  Furthermore, it is preferable to have an operation member that can operate this pressing member from the outside of the case. The pressing member and the operation member may be integrally formed.

  The pressing member and the operating member are formed separately from each other, and further disposed between them to absorb the impact applied to the operating member, and the bag body from the operating member via the pressing member You may provide the damper which reduces the pressing force transmitted to.

  The liquid stored in the liquid storage container is preferably a liquid containing a solvent contained in the ink or a liquid containing alcohol.

  The ejection failure recovery method of the present invention comprises a recording head having a nozzle for ejecting ink, and a mounting portion on which an ink tank for storing the ink is detachably set, and is supplied from the ink tank through a supply path. Used in an ink jet recording apparatus for recording an image by discharging ink from the recording head onto a recording medium, and a liquid for recovering the ejection failure is stored in the ejection failure recovery method for recovering the ejection failure of the recording head. A step of mounting a liquid storage container that can be mounted on the mounting unit on the mounting unit, and pressurizing the liquid in the liquid storage container by a pressurizing mechanism provided on the liquid storage container to remove from the liquid storage container And feeding to the nozzle through the supply path.

  The ink jet recording apparatus of the present invention is an ink jet recording apparatus having an ejection type recording head for ejecting ink to record an image, wherein an ink tank for storing the ink can be detachably mounted, and the ejection failure The recovery device includes a mounting portion on which the recovery device can be mounted.

  According to the present invention, a liquid storage container that stores a liquid for recovering a discharge failure of a recording head provided in an ink jet recording apparatus and that can be attached to an ink cartridge mounting portion provided in the ink jet recording apparatus is provided with the ink cartridge. Since it is mounted on the mounting portion, the liquid in the liquid storage container is pressurized by a pressurizing mechanism provided in the liquid storage container, and is sent from the liquid storage container to the nozzle through the supply path. Sufficient recovery capability can be secured without hindering cost reduction of the apparatus.

  An ink jet recording apparatus 10 shown in FIG. 1 includes a recording head 12 that records an image by ejecting and adhering ink to a paper 11 that is a recording medium. The recording head 12 includes a plurality of nozzles in which ejection openings for ejecting ink are formed, and the ejection surface on which the ejection openings of the plurality of nozzles are arranged faces the recording surface of the paper 11. . The recording head 12 is attached to a carriage 13 that is movable in the width direction (main scanning direction X) of the paper 11, and the ejection surface is exposed from an opening formed on the bottom surface of the carriage 13. The recording head 12 performs line recording of an image while reciprocating along the width direction of the paper 11 as the carriage 13 moves. Each time the recording head 12 reciprocates once, the paper 11 is fed in the sub-scanning direction Y by a conveyance roller (not shown) by the recording width recorded by the reciprocating movement of the recording head 12. These operations are repeated to record an image for one screen.

  The carriage 13 is slidably attached to the guide rods 14 a and 14 b and is driven by a belt mechanism 18 including a belt 16 and a pair of pulleys 17. The carriage 13 is provided with a cartridge mounting portion 20 above the recording head 12. For example, four ink cartridges 21 each containing Y, M, C, and K inks are detachably attached to the cartridge mounting portion 20. The ink cartridge 21 is a cartridge type ink tank that is replaceably attached to the ink jet recording apparatus. Since ink is a consumable item, it needs to be replenished. However, by using the ink cartridge 21 as an ink tank, the ink replenishment operation can be easily performed.

  The cartridge mounting portion 20 is formed with a plurality of slots into which the ink cartridges 21 are inserted. Each of these slots is provided with a hollow ink supply needle 36 (see FIG. 2) in which a flow path for feeding ink to the recording head 12 is formed. When the ink cartridge 21 is inserted into the slot, the ink cartridge 21 is inserted. The ink supply needle 36 is pierced into the ink take-out portion 31 provided at the bottom of the ink supply. The ink stored in the ink cartridge 21 is supplied to the recording head 12 through the ink supply needle 36. The recording head 12 is provided with a vibration plate driven by a piezo element corresponding to each nozzle, and the ink in the ink cartridge 21 is sucked into the nozzle by the pressure change caused by the vibration of the vibration plate, and the ejection port Is injected from.

  Further, the ejection failure recovery cartridge 41 is detachably attached to the cartridge attachment portion 20. The ejection failure recovery cartridge 41 is an ejection failure recovery device that recovers the ejection failure of the nozzles of the recording head. Similarly to the ink supplied from the ink cartridge 21, the ejection failure recovery cartridge 41 passes the ejection failure recovery liquid (hereinafter referred to as recovery liquid) to the recording head 12 through the ink supply path including the ink supply needle 36. Clogging of ink etc. of the nozzle is removed by feeding to the nozzle and discharging from the nozzle.

  As shown in FIG. 2, the ejection failure recovery cartridge 41 includes a bag body 42 that stores the recovery liquid, a pressure member 43 that pressurizes the recovery liquid therein by crushing the bag body 42, and these It consists of a case 44 that accommodates. The case 44 is made of plastic, for example. The shape and size of the case 44 are almost the same as those of the ink cartridge 21 and can be mounted in the slot of the cartridge mounting portion 20. Of course, the case 44 does not have to be the same size and shape as the ink cartridge 21, and may be any shape and size that can be mounted on the cartridge mounting portion 20.

  A discharge portion 46 for discharging the recovery liquid in the bag body 42 to the outside of the ejection failure recovery cartridge 41 is provided at the bottom of the case 44. The discharge portion 46 has a protruding portion that protrudes in a cylindrical shape downward from the bottom of the case 44, and the shape thereof is the same as that of the ink extraction portion 31 of the ink cartridge 21. When the ejection failure recovery cartridge 41 is mounted on the cartridge mounting portion 20, it is fitted with the fitting portion in which the ink supply needle 36 in the slot is disposed. A rubber plug 47 that seals the mouth of the bag body 42 is press-fitted into the opening of the discharge portion 46. The ink supply needle 36 is inserted into the rubber plug 47. The ink supply needle 36 is inserted into the rubber plug 47 and the tip thereof enters the mouth of the bag body 42. In this example, a rubber plug 47 is disposed in the discharge portion 46 and is connected to the ink supply needle 36. However, the shape and configuration of the discharge portion 46 are appropriately changed depending on the configuration of the cartridge mounting portion. Is done.

  In addition, the floor surface of the case 44 is formed so that the portion to which the rubber plug 47 is attached is one step lower. This is a contrivance for preventing the tip of the ink supply needle 36 from protruding from the upper end of the rubber stopper 47 into the bag body 42 and making the hole contact the bag body 42 to make a hole. Further, in this case, since the mouth of the bag body 42 is disposed lower than the bottom thereof, the recovery liquid in the bag body 42 can easily flow toward the mouth when the bag body 42 is crushed. It is done.

  Since the bag body 42 is pressed and crushed by the pressure member 43, the bag body 42 is formed of a flexible material. Further, it is preferable that the material of the bag body 42 has an inner surface in contact with the ink that is insoluble with respect to the ink and that the air tightness is ensured so that the ink does not come into contact with the outside air. Specifically, a multilayer film in which both surfaces of an Al film are sandwiched between polyethylene films, a film in which nylon is coated on a polyethylene film, a polymer film such as a copolymer of vinyl chloride and vinylidene chloride, and the like are used. The mouth of the bag body 42 and the rubber plug 47 are joined by, for example, heat welding, and the recovery liquid is sealed in the bag body 42.

  The pressing member 43 is substantially V-shaped, and presses against the outer surface of the bag body 42 to press, and the pressing portion 51 protrudes to the outside from an opening 44 a formed on the upper surface of the case 44. And an operation unit 52 for operating the. The pressure member 43 is integrally molded, for example. The pressing member 43 has a shaft hole formed in the vicinity of the apex where one end of each of the pressing portion 51 and the operation portion 52 intersects is attached to a pin 53 provided in the case 44 and is held rotatably. The rotation range of the pressing member 43 is regulated by the operation unit 52 coming into contact with the opening 44a.

  When the operation unit 52 is swung clockwise from the initial position shown in FIG. 2 (A), the pressing unit 51 is also swung to push the bag body 42 as shown in FIG. 2 (B). Crush. As a result, the recovery liquid in the bag body 42 is pressurized and discharged from the bag body 42 to the outside through the discharge portion 46. The recovery liquid is sent to the nozzles of the recording head 12 through the ink supply path including the ink supply needle 36 and is discharged from the nozzle outlet. By passing the recovery liquid through the nozzle in this way, the high clay ink, bubbles, dust, and the like clogged in the nozzle are removed by the pressure of the recovery liquid, and are discharged from the discharge port together with the recovery liquid.

  The pressing portion 51 is formed with a curved surface so that the contact surface 51 a that contacts the bag body 42 does not rupture the bag body 42. Further, the contact surface 51a is curved in an arc shape so as to wrap the bottom of the bag body 42 toward the rear end portion that contacts the bottom (right side in the figure) of the bag body 42. Thereby, the recovery liquid in the bag body 42 is sent from the hip toward the mouth. The pressure member 43 of this example is only pivotally attached to the case 44. For example, the pressure member 43 is attached to the initial position shown in FIG. Then, after the manual pressing operation is completed, the pressing member 43 may automatically return to the initial position.

  Since the recovery liquid passes through the same path as the ink, it is preferable that the recovery liquid does not contain any components other than the ink components. Therefore, it is preferable to use a solvent contained in the ink. Specific examples of the solvent are as follows in the case of water-based ink. Alcohol (eg, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, sec-butanol, t-butanol, pentanol, hexanol, cyclohexanol, benzyl alcohol), polyhydric alcohols (eg, ethylene glycol, diethylene glycol, triethanol) Ethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, butylene glycol, hexanediol, pentanediol, glycerin, hexanetriol, thiodiglycol), glycol derivatives (eg, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether) , Ethylene glycol monobutyl ether, diethylene glycol Nomethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, triethylene glycol monomethyl ether, ethylene glycol diacetate, ethylene glycol monomethyl ether acetate, triethylene glycol monomethyl ether, triethylene glycol Ethylene glycol monoethyl ether, ethylene glycol monophenyl ether), amine (for example, ethanolamine, diethanolamine, triethanolamine, N-methyldiethanolamine, N-ethyldiethanolamine, morpholine, N-ethylmorpholine, ethylenediamine, diethylenetriamine, triethylenetetramine) The Ethyleneimine, tetramethylpropylenediamine) and other polar solvents (eg, formamide, N, N-dimethylformamide, N, N-dimethylacetamide, dimethyl sulfoxide, sulfolane, 2-pyrrolidone, N-methyl-2-pyrrolidone, N -Vinyl-2-pyrrolidone, 2-oxazolidone, 1,3-dimethyl-2-imidazolidinone, acetonitrile, acetone). As the solvent used as the recovery liquid, alcohols are particularly preferably used. Two or more kinds of the above solvents may be used in combination. In the case of water-based ink, water is also included, but water should not be used or kept in a small amount because of its low recovery ability.

  Furthermore, it becomes easier to recover by including the following antifoaming agent in the recovery liquid. Here, the antifoaming agent specifically means a compound of fatty acid esters, metal soaps, silicons, and nonionic surfactants. Examples of fatty acid esters include isoamyl stearate, succinic acid diester, diethylene glycol distearate, oxyethylene sorbitan monolauryl ester, and the like, and commercially available products include Nopco KF (trade name) manufactured by NopcoChem. Co. Examples of metal soaps include aluminum stearate and potassium oleate, and commercially available products include Nopco DF122-NS (trade name) manufactured by San Nopco Co., Ltd.

  Examples of silicones include silicone oil, silicone emulsion, and organically modified silicone oil, and commercially available products include SN deformer 5016 (trade name) manufactured by Sannopco, Surfynol DF-58 (trade name) manufactured by Air Products, Surfynol DF-695 (trade name), SM-5513 (trade name) manufactured by Toray Dow Corning Silicone Co., Ltd. and the like can be mentioned.

The following examples are given as nonionic surfactants.
1) Alkyl allyl ether ethylene oxide adduct
2) HO- (C2H4O) n- (C3H6O) m- (C2H4O) n-OH has a molecular weight of 500 to 10,000 and a C2H4O content of 0 to 55%
3) Alkyl ester type: R1 (R2) CHCOO (C2H4O) n R1, R2: C1-C10 alkyl group n: 1-8
4) Acetylene diols and their ethylene oxide 0-8 mol adducts

  Of these, silicon and nonionic surfactants are preferable among the antifoaming agents used in the present invention, and nonionic surfactants having an HLB value of about 1 to 4 are particularly preferable. The antifoaming agent mentioned above can be used individually or in combination of 2 or more types. The addition amount of the antifoaming agent in the recovery liquid is preferably 0.001 to 5% by mass. If the addition amount is too small, the defoaming effect does not sufficiently appear, and if the addition amount is too large, the recovery liquid causes layer separation, which is not preferable. Also, the antifoaming agent described above is preferably used as an ink component as well as the solvent.

  The operation of the above configuration will be described below based on the flowchart shown in FIG. When printing using the inkjet recording apparatus 10, the ink cartridge 21 filled with ink is set in the cartridge mounting unit 20. When a discharge failure of the nozzle of the recording head 12 occurs, the ink cartridge 21 corresponding to the nozzle of the color in which the discharge failure has occurred is removed from the slot of the cartridge mounting portion 20, and instead, the discharge failure recovery cartridge 41 is removed. Install in the slot.

  Then, the operation unit 52 is manually operated, and the pressurized recovery liquid is sent to the nozzles of the recording head 12 and discharged from the discharge ports. Thereby, the ink clogged in the nozzle is discharged from the discharge port together with the recovery liquid, and is removed from the nozzle, thereby recovering the discharge failure. When the discharge failure recovery is not sufficient by one operation, the operation unit 52 is operated again to discharge the recovery liquid a plurality of times. This discharge can be repeated any number of times until the recovery liquid in the bag 42 is exhausted. If one ejection failure recovery cartridge 41 is not sufficient, the same operation is repeated by replacing with another ejection failure recovery cartridge 41 filled with the recovery liquid.

  After the recovery process is thus completed, the ejection failure recovery cartridge 41 is removed from the cartridge mounting portion 20 and the ink cartridge 21 is mounted again. In addition, when there is a nozzle of a color in which ejection failure has occurred, ejection failure recovery processing is executed in the same procedure.

  Since the recovery liquid is pressurized and passed through the nozzle, the recovery is more reliable than the conventional method in which the same ink as the ink to be removed is pressurized and sent. Further, since ink used for image recording is not used, wasteful consumption of ink can be suppressed. Further, since the ejection failure recovery cartridge 41 is mounted on the cartridge mounting unit 20 in the same manner as the ink cartridge 21 and the recovery process is executed by manually operating the operation unit 52, it is simple and quick. Moreover, since it operates manually, sufficient pressurization force with respect to a recovery liquid can be ensured.

  Further, since it is not necessary to provide a suction pump or the like for recovering defective ejection in the ink jet recording apparatus, it contributes to cost reduction of the ink jet recording apparatus. Further, the ejection failure recovery cartridge 41 can execute the ejection failure recovery process individually for each nozzle. For this reason, since it is possible to perform ejection failure recovery processing only for nozzles in which ejection failure has occurred, there is no waste and efficiency.

  In the above embodiment, the example in which the pressing member is formed by one member has been described. However, like the pressing member 61 of the ejection failure recovery cartridge 60 shown in FIG. It may be provided as a separate member. In addition, about the code | symbol of FIG. 4, about the same member as the said embodiment, the same code | symbol is attached | subjected.

  The pressing member 62 and the operation member 63 are rotatably attached to the pin 53. A spring 64 is provided between the pressing member 62 and the operation member 63. One end of the spring 64 is attached to the pressing member 62 and the other end is attached to the operation member 63. As shown in FIG. 4A, the opening angle created by the pressing member 62 and the operation member 63 is predetermined. Energize both so that the angle becomes. As shown in FIG. 4C, when the operating member 63 is operated, the force is transmitted to the pressing member 62 via the spring 64, and the bag body 42 is crushed.

  The spring 64 functions as a damper that absorbs an impact applied to the operation member 63 and reduces a pressing force transmitted from the operation member 63 to the bag body 42 via the pressing member 62. When the operation member 63 is operated from the initial state shown in FIG. 4A, a part of the force applied to the operation member 63 is absorbed by the spring 64 immediately after the operation member 63 swings, as shown in FIG. 4B. Thus, the pressing force transmitted from the pressing member 62 to the bag body 42 is reduced. For this reason, for example, even if the operation member 63 is operated with a relatively strong force, the bag body 42 can be prevented from bursting.

  In the said embodiment, although the pressurization mechanism which pressurizes recovery liquid and sends out to a nozzle was shown by the example comprised with the bag body and the pressurization member which crushes this, it is comprised from a piston and a cylinder other than this, for example. Various modifications are possible. In the above-described embodiment, an example of manual operation has been described. However, for example, a small motor may be used to move the motor electrically.

  In the above-described embodiment, the recovery liquid has been described as an example of the water-based ink. Just choose.

  In addition, there is no limitation on the method of the inkjet recording apparatus to which the ejection failure recovery apparatus of the present invention is applied, and a known system, for example, a charge control system that ejects ink using electrostatic attraction, and the vibration pressure of the piezo element are controlled. Drop-on-demand method (pressure pulse method), an acoustic ink jet method that changes the electrical signal into an acoustic beam, irradiates it with ink and ejects ink using radiation pressure, and heats the ink to create bubbles It is used in a thermal ink jet (Bubble Jet (registered trademark)) system that uses the pressure generated and generated.

It is explanatory drawing which shows schematic structure of an inkjet recording device. It is explanatory drawing of the cartridge for discharge defect recovery. It is a flowchart which shows a discharge failure recovery procedure. It is explanatory drawing of the cartridge for discharge failure recovery with a damper.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Inkjet recording device 12 Recording head 13 Carriage 20 Cartridge mounting part 21 Ink cartridge 41, 61 Ejection failure recovery cartridge 42 Bag body 43 Pressure member 44 Case 46 Discharge part 51 Press part 52 Operation part 62 Press member 63 Operation member 64 Spring

Claims (9)

A recording head having a nozzle for ejecting ink; and a mounting portion in which an ink tank for storing the ink is detachably set. The ink supplied from the ink tank through a supply path is recorded from the recording head to the recording medium. In an ejection failure recovery device that recovers ejection failure of the recording head, which is used in an inkjet recording device that ejects ink to record an image,
A liquid storage container that can be mounted on the mounting section and stores a liquid for recovering the ejection failure, and is connected to the supply path when the liquid storage container is mounted on the mounting section, A liquid discharge unit that discharges the liquid from the liquid storage container to the supply path, and a pressurization mechanism that pressurizes the liquid in the liquid storage container and supplies the liquid to the nozzle through the liquid discharge unit. Discharge failure recovery device.   The liquid storage container includes a flexible bag body that stores the liquid, and a case that accommodates the bag body and can be attached to the mounting portion, and the pressurizing mechanism includes the case The ejection failure recovery device according to claim 1, further comprising a pressing member that is disposed inside and crushes the bag body by displacement.   3. The ejection failure recovery device according to claim 2, further comprising an operation member capable of operating the pressing member from the outside of the case.   The ejection failure recovery device according to claim 3, wherein the pressing member and the operation member are integrally formed.   The pressing member and the operating member are formed separately from each other, and further, disposed between them, absorbs an impact applied to the operating member, and passes through the pressing member from the operating member. 4. The ejection failure recovery device according to claim 3, further comprising a damper that reduces a pressing force transmitted to the bag body.   6. The ejection failure recovery apparatus according to claim 1, wherein the liquid stored in the liquid storage container is a liquid containing a solvent included in the ink.   7. The ejection failure recovery device according to claim 1, wherein the liquid stored in the liquid storage container is a liquid containing alcohol. A recording head having a nozzle for ejecting ink; and a mounting portion in which an ink tank for storing the ink is detachably set. The ink supplied from the ink tank through a supply path is recorded from the recording head to the recording medium. In an ejection failure recovery method for recovering ejection failure of the recording head, which is used in an inkjet recording apparatus that ejects ink to record an image,
A step of mounting a liquid storage container in which a liquid for recovering the ejection failure is stored and which can be mounted on the mounting unit is mounted on the mounting unit, and a pressurizing mechanism provided on the liquid storage container is used. And a step of pressurizing the liquid and feeding the liquid from the liquid storage container to the nozzle through the supply path. In an inkjet recording apparatus provided with a recording head of an ejection method for ejecting ink to record an image,
An ink jet recording apparatus, comprising: an ink tank for storing the ink, wherein the ink tank is detachably mountable, and further includes a mounting portion to which the ejection failure recovery device according to claim 1 can be mounted.

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