JPH11268303A - Waste ink discharge process module of ink-jet printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure thereby facilitating installation and enabling speedy, easy and correct recovery including tracking down of causes of an abnormality, etc., and exchanging of parts. SOLUTION: A first waste ink tank 42 which can temporarily store waste ink from a nozzle 10, a second waste ink tank 62 which can temporarily store waste ink from an ink tank 22, a waste ink bottle 50, a first discharge pipe 44 as a first discharge means for discharging the waste ink in the first waste ink tank 42 to the waste ink bottle 50, a first discharge valve 45, a second discharge pipe 63 as a second discharge means for discharging the waste ink in the second waste ink tank 62 to the waste ink bottle 50 and a second discharge valve 64 are formed into an integral structure module 2 installed in a main body detachable to an ink-jet printer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet printer formed so as to be capable of supplying ink to a nozzle head having a plurality of ink jet nozzles from an ink tank and ejecting ink from selected ink jet nozzles while printing on a medium. The present invention relates to a waste ink discharge processing module.

[0002]

2. Description of the Related Art A nozzle head for each color, in which an ink cassette is mounted, is reciprocated over the entire length in a row direction, and printing is performed during each forward movement to print one line (or 1 / N line). Compared to a so-called serial type inkjet printer, after printing one line (or 1 / N line), a printing medium (medium: plain paper, OHP paper, etc.) is fed one line in the column direction and repeated. The applicant of the present invention has proposed an ink-jet printer capable of achieving high speed and capable of continuous printing operation over a large number of sheets and capable of achieving a significant reduction in size as compared with a so-called laser printer of an electrophotographic system (for example, Japanese Patent Application No. No. 8-296959).

That is, the nozzles for each color which are integrated (or integrated with a plurality of nozzle head elements arranged in the row direction) over the entire length in the row direction are rotated while being reciprocated by, for example, the pitch between the ink jet nozzles. Ink can be ejected from the ink jet nozzles for each color onto the print medium to perform row printing, and column printing can be performed while utilizing the rotation of the drum during forward movement of the pitch between the ink jet nozzles. That is, since the row-direction printing and the column-direction printing can proceed at the same time, the printing speed can be significantly increased.

Further, since the nozzle head for each color and the ink tank for each color can be arranged at a distance from each other, the nozzle head for each color can be made lighter, and the reciprocating speed in the row direction can be greatly increased. Since the speeding up is promoted and the capacity of the ink tank for each color can be greatly increased, a continuous printing operation of, for example, 500 or more sheets can be performed.

In order to perform continuous printing operation on such a large number of printing media, it is not possible to increase the size due to the reciprocating movement in the line direction as in a conventional serial type ink jet printer, that is, only to consume ink in a small ink cassette. Insufficient ink amount.

Therefore, an ink supply means is provided so that printing is possible while supplying ink from an ink tank to a nozzle head having a plurality of ink jet nozzles.
The ink is supplied to the ink tank from a detachable ink bottle. Therefore, it is not necessary to frequently replace the small ink cassette in the related art, and a continuous printing operation can be performed for a long time.

In addition, the waste ink discharged from the nozzle head during maintenance of the nozzle head is formed so as to be dischargeable to a detachable waste ink bottle at a fixed position by using the ink discharge means, thereby preventing surrounding ink contamination. In addition, the number of replacements of the waste ink bottle is reduced.

[0008]

By the way, in such an ink discharging means, if a tank capable of temporarily storing waste ink is provided in front of the waste ink bottle, surrounding ink stains can be more reliably prevented.

[0009] However, the installation of individual tanks and the like and the arrangement of piping are complicated, the assembly is complicated, and the number of steps is increased.

Moreover, in addition to such a manufacturing aspect, it is difficult to determine the cause when an abnormality or failure occurs in the ink discharging means, and it is complicated and time-consuming to disassemble and reassemble for replacing each part. It cannot be denied that the problem described above easily occurs. This becomes more remarkable when the ink tank is of an overflow type or the ink color used is large. As a result, the handling of the ink jet printer becomes difficult and the cost increases.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an ink-jet printer which has a simple structure, is easy to assemble, can quickly and easily and accurately recover the cause of an abnormality or the like, including component replacement, and can reduce the size and cost of the entire printer. An object of the present invention is to provide a waste ink discharge processing module of a printer.

[0012]

According to a first aspect of the present invention, ink is supplied from an ink tank to a nozzle head having a plurality of ink jet nozzles, and is formed to be printable on a medium while spraying ink from a selected ink jet nozzle. A first waste ink tank capable of temporarily storing waste ink from the nozzle head and a second waste ink tank capable of temporarily storing waste ink from the ink tank. An ink tank, a waste ink bottle, and first discharging means for discharging waste ink in the first waste ink tank to the waste ink bottle;
A second discharging means for discharging the waste ink in the second waste ink tank to the waste ink bottle; and a waste ink discharge of the inkjet printer formed in an integral structure which is incorporated in a main body detachable from the inkjet printer. Processing module.

In this invention, when the main body is mounted on the ink jet printer and the printing operation is started, the waste ink from the ink tank due to, for example, overflow is temporarily held in the second waste ink tank. The waste ink does not stain the surroundings. Further, during the maintenance of the nozzle head during printing or at the initial stage, the waste ink discharged from the nozzle head is temporarily held in the first waste ink tank. Also in this case, no ink smear occurs.

The first discharging means is operated at an appropriate time to discharge the waste ink in the first waste ink tank to the waste ink bottle. Further, the second discharging means is operated to discharge the waste ink in the second waste ink tank to the waste ink bottle. That is, since each waste ink can be collected in a closed waste ink bottle, ink contamination can be completely prevented and the waste ink bottle can be replaced even during the printing operation.

Here, since these tank and discharge means are a module integrated into the main body, they are low-cost and compact, and consequently the size and size of the ink jet printer.
In addition to reducing costs, simplifying the structure and facilitating handling, when an error or failure occurs in the ink discharge means, the cause of the problem can be investigated compared to the case of individually arranging and piping. It is easy and continuous printing operation can be performed by replacing the module. That is, the structure is simple and easy to assemble, and the cause of an abnormality or the like can be quickly and easily and accurately recovered, including the replacement of parts, and the size and cost of the entire printer can be reduced.

Further, according to a second aspect of the present invention, the first discharge valve forming the first discharge means and the second discharge valve forming the second discharge means are provided with the first waste ink. A waste ink discharge processing module of an ink jet printer comprising a common discharge valve having a pump function capable of forcibly discharging waste ink in a tank and waste ink in the second waste ink tank to the waste ink bottle. .

In this invention, the discharge valve having a pump function common to the first discharge valve forming the first discharge means and the second discharge valve forming the second discharge means is opened (pump activation). For example, each waste ink temporarily held in the first waste ink tank and the second waste ink tank can be forcibly discharged to the waste ink bottle.

Therefore, in addition to providing the same operation and effect as the case of the first aspect of the present invention, the layout of the first waste ink tank, the second waste ink tank, and the vertical relation of the waste ink bottle is free. The degree can be greatly increased, and further downsizing and cost reduction can be achieved.

In a third aspect of the present invention, there is provided a third discharging means having a pump function capable of forcibly discharging waste ink containing air in the first waste ink tank to the waste ink bottle. Is a waste ink discharge processing module of an inkjet printer.

In this invention, the waste ink containing air in the first waste ink tank is forcibly discharged to the waste ink bottle by the third discharge means having a pump function.
Therefore, in addition to providing the same operation and effect as in the first and second aspects of the present invention, it is possible to further prevent the vapor-like ink from scattering around, so that the surrounding ink stain is more reliably removed. Can be prevented.

Further, according to the present invention, the waste ink bottle is detachably formed at a predetermined position of the main body and can detect whether the waste ink bottle is mounted at a predetermined position of the main body. 9 is a waste ink discharge processing module of an ink jet printer provided with a position detecting unit.

According to this invention, the fixed position detecting means can detect whether or not the waste ink bottle is mounted at a predetermined position of the main body. By using this detection signal, it is possible to forcibly prohibit the opening (starting) state of each valve (pump) forming each discharging means when the waste ink bottle is not mounted at a predetermined position in the main body. It becomes possible. Therefore, in addition to providing the same operation and effect as the inventions of claims 1 to 3, it is possible to more reliably prevent ink contamination even when the waste ink bottle is forgotten to be mounted. Can be.

Further, the invention according to claim 5 is characterized in that, in the main body, the first waste ink tank, the second waste ink tank, the waste ink bottle, the first discharge means and the first waste ink tank for a plurality of colors are provided. This is a waste ink discharge processing module of the ink jet printer in which the second discharge means and the like are incorporated.

In this invention, the ink discharging means for a plurality of colors (for example, yellow, magenta, cyan, and black) is integrated into one module. Therefore, in addition to providing the same operational effects as the inventions of the first to fourth aspects, a large number of pipes and the like can be neatly assembled, and the size and cost of the color inkjet printer can be further promoted. it can.

[0025]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the waste ink discharge processing module 2 includes a first waste ink tank (42) capable of temporarily storing waste ink from the nozzle head 10 and a waste ink from the ink tank 22. A second waste ink tank (62) that can be temporarily stored, a waste ink bottle 50, and a first discharge unit (4) that discharges waste ink in the first waste ink tank (42) to the waste ink bottle 50.
4, 45) and second discharging means (63, 64) for discharging the waste ink in the second waste ink tank (62) to the waste ink bottle 50 in the main body 2B detachable from the ink jet printer. It is an integrated structure.

First, the ink jet printer and the ink supply means 20 which are premised on the waste ink discharging process will be described.

In FIG. 1, the ink jet printer is provided with an ink tank 22 in the same manner as in the above-mentioned prior proposal.
Supplies ink to a nozzle head 10 having a plurality of ink jet nozzles 12 from the medium, and ejects ink from the selected ink jet nozzles 12 to a medium (print medium ...
Paper or the like).

In this embodiment, the nozzle head 10
It has four colors (cyan, yellow, magenta, and black) and is capable of color printing on A4 paper at a high speed of 20 PPM, for example. Note that the present invention is also applied to the case of one color (for example, black). FIG. 1 shows one color.

Next, the ink supply means 20 includes an ink tank 22, a supply pipe 24, a supply valve (supply pump) 25 and the like, and supplies ink from the ink tank 22 to the ink chamber 11 of the nozzle head 10. Ink tank 22
Is supplied with ink from the ink bottle 21, and the ink level can be adjusted to be constant. 23 is an air intake.

The ink return means 30 includes a return pipe 31 and a return valve (return pump) 32, and can return the ink from the ink chamber 11 to the ink tank 22. That is, ink circulation by cooperation with the ink supply means 20,
Used alone when the ink chamber 11 is drained.

The ink supply means 20 and the ink return means 30 include a main body 1 which can be attached to and detached from an ink jet printer, as in FIGS.
B is formed in an integrated structure, that is, the module 1. That is, since a plurality of (4) ink colors (cyan, yellow, magenta, and black) are integrated, the simplification of the structure of the color inkjet printer can be further achieved with the use of the waste ink discharge processing module 2. It is valid.

When the module 1 (main body 1B) is mounted on a printer (nozzle head 10), one ends of the supply pipe 24 and the return pipe 31 communicate with the ink chamber 11 via an automatic opening / closing cap structure (not shown). It is formed to be possible.

That is, since one end of the supply pipe 24 and one end of the return pipe 31 can be connected to the nozzle head 10 by the mounting operation of the main body 1B to the ink jet printer and can be separated by the detaching operation, the replacement can be performed more quickly and accurately. Handling is easier.

The supply pipe 24 and the return pipe 31 are formed of tubes having high elasticity, and the supply valve (supply pump) 25 and the return valve (return pump) 32
Is formed from a tube type pump having a valve function capable of selecting either the open state or the closed state of each of the pipes (24, 31).

For example, the rotary roller has a plurality of pressing rollers, and the ink can be sent in a closed state by pressing the tube with each pressing roller, and in an open state by rotating while pressing. Therefore, each switching can be quickly performed, the ink supply and the ink return can be accurately performed, the piping for manufacturing the module is simple, and the cost can be effectively reduced.

Further, since the supply pump (25) and the return pump (32) have the same structure, the work of disposing and attaching the pump to the main body 1B can be speeded up and the assembly is easy.
In this embodiment, the specifications are the same.

When the module 1 (main body 1B) is mounted on the printer (nozzle head 10), the supply pipe 24
The return pipe 31 is connected to a corresponding position on the nozzle head 10 (11) side. Then, the ink bottle 21 is mounted on the ink tank 22, and the ink tank 22 is filled with ink.

When the supply pump (25) is activated to supply ink to the nozzle head 10 and the return pump (32) is activated to perform ink circulation operation for returning ink from the nozzle head 10 to the ink tank 22, warming is achieved. And so on.

When the return pump (32) is stopped and the supply pump (25) is started to supply the ink continuously or intermittently, the printing operation and the maintenance of the nozzle head 10 can be performed.

As described above, each tank, piping, etc.
Since the structure of the module 1 is integrated into the ink jet printer, the size and the structure of the ink jet printer can be reduced and the structure can be simplified. Compared to the case of a layout in which individual arrangements and piping are provided, it is easier to find the cause and continuous operation can be performed by replacing the module.

Further, the ink supply means 20 is provided in the main body 1B.
And an impact purging mechanism 27 for cleaning the nozzle head 10 (inkjet nozzle 12) including the ink cleaning filter 26 and the front and rear valves 28 and 29, which are interposed in the middle of the supply pipe 24. . Therefore, it is effective for further miniaturization of the entire printer.

An air bleeder 70 for bleeding air from the filter 26 after the maintenance for smooth and quick maintenance of the filter 26 is incorporated in the main body 1B.

The air release means 70 includes an air release pipe 71 and an air release valve 72 shown in FIG. 1, and is formed so that the ink discharged from the filter 26 when the air in the filter 26 is released can be collected in the ink tank 22. I have.

That is, when the air vent valve 72 is opened with the front valve 28 closed, the air in the filter 26 is released to the ink tank 22 through the air vent tube 71. Therefore, the filter performance can be stabilized, and the ink mixed in the air can be prevented from scattering around.

Here, the components of the ink discharging means 40 are integrated into the waste ink discharging module 2 shown in FIGS.

In FIG. 1, an ink discharging means 40 receives ink discharged from the ink jet nozzle 12 by an ink receiver 41 and temporarily stores the ink in a receiving tank (first waste ink tank) 42 which is connected to the ink receiver 41 by a communication pipe 43. Means for discharging the retained waste ink to the waste ink bottle 50 side,
Basically, the first discharging means (the first discharging pipe 44, the first discharging means 44,
Discharge valve 45). The ink is discharged to the waste ink bottle 50 through the total discharge pipe 49.

An overflow tank (second waste ink tank) 62 capable of temporarily storing waste ink overflowing from the ink tank 22, and second discharge means (second discharge pipe 63, second discharge valve 64). ), So that the waste ink temporarily held in the overflow tank 62 can also be discharged to the waste ink bottle 50 through the total discharge pipe 49.

That is, the second discharge means overflows from the ink tank 22 and the overflow pipe 6
The waste ink discharged through 1 and temporarily stored in a second waste ink tank (overflow tank 62) is discharged to a waste ink bottle 50. When the second discharge valve 64 is closed, the second discharge pipe 63 is closed, so that the waste ink in the second waste ink tank (62) cannot be forcibly discharged to the waste ink bottle 50 side and the waste ink cannot be discharged. The natural flow of the ink can be prevented.

Thus, the first discharging means (4
5) is operated to discharge the waste ink in the first waste ink tank (42) to the waste ink bottle 50. In addition, the second discharge means (64) is operated, and the second waste ink tank (6
The waste ink in 2) is discharged to the waste ink bottle 50. That is, since each waste ink can be collected in the closed waste ink bottle 50, surrounding ink contamination can be completely prevented, and the waste ink bottle 50 can be replaced even during the printing operation.

The ink discharge means 40 has a third discharge means having a pump function capable of forcibly discharging waste ink containing air in the first waste ink tank (42) to the waste ink bottle 50. (Third discharge pipe 47, third discharge valve 48) are provided. Therefore, it is possible to prevent the vapor-like (fog-like) ink from being scattered to the surroundings, so that it is possible to more reliably prevent ink contamination.

The connecting pipe 43, the first discharge pipe 44, the second discharge pipe 63, the third discharge pipe 47 and the total discharge pipe 49.
Are formed of a tube rich in elasticity, and are provided with a first discharge valve (first discharge pump) 45, a second discharge valve (second discharge pump) 64, and a third discharge valve (third discharge pump). The pump (48) is connected to each of the pipes (44, 63, 4).
7) is formed of a tube type pump similar to the pumps 25 and 32 having a valve function capable of selecting either the open state or the closed state.

Thus, the overflow tank (second waste ink tank) 62 is located at a position lower than the position of the waste ink bottle 50 as shown in FIGS. 2 and 3 (indicated by a two-dot chain line in FIG. 1). It is arranged in. The waste ink can be forcibly discharged to an upper waste ink bottle 50 by a pump function.

Therefore, the height difference between the ink tank 22 disposed at the upper position and the overflow tank 62 disposed at the lower position can be made larger,
The overflow from the ink tank 22 can be more smoothly and stabilized. Also, the first waste ink tank (42),
Second waste ink tank (62) and waste ink bottle 5
The degree of freedom of the layout regarding the vertical relationship of 0 can be greatly increased, and further downsizing and cost reduction can be achieved.

Further, the first discharge valve 45 and the second discharge valve 64 serve to discharge each waste ink in the first waste ink tank (42) and the second waste ink tank (62) to the waste ink bottle 50. One discharge valve (discharge pump) [first discharge valve (first discharge pump) 45] that can be forcibly discharged to the air is commonly used. Therefore, the apparatus can be effectively used both during the stop of the printing operation and during the printing operation, the cost can be reduced, and the congestion of the layout can be alleviated.

2 and 3, a first waste ink tank (42), a second waste ink tank (62), a waste ink bottle 50, first discharging means (44, 45),
The second discharging means (63, 64 = 45) and the like are integrated into the main body 2B detachable from the ink jet printer to form the module 2.

More specifically, as shown in FIG.
From the top to the bottom of the third discharge valve (third discharge means) 4
8, first discharge valve (first discharge means) 45, first waste ink tank (42), waste ink bottle case 100
(A waste ink bottle 50) and a second waste ink tank (62). These are connected by each tube (44, 47, 49, 63). In addition,
The uppermost 101 is a printed circuit board (PCB).

Therefore, it is possible to reduce the cost and size of the ink-jet printer, thereby reducing the size and cost of the ink jet printer, simplifying the structure and facilitating the handling. Compared to the case of the layout of disposing and piping, it is easier to find the cause and continuous operation can be performed by replacing the module. That is, the structure is simple and easy to assemble, and the cause of the abnormality or the like and the recovery including the replacement of parts can be quickly, easily and accurately performed, and the size and cost of the entire printer can be reduced.

FIG. 2 (FIG. 1)
Can be attached to the main body 2B (waste ink bottle case 100) by pushing in the direction of arrow A shown in FIG. 4 and can be removed by pulling out in the direction of arrow B. It is performed with the handle 51. Therefore, even if the user forgets to attach the waste ink bottle 50, it is possible to reliably prevent the surroundings from being stained with ink.

When the waste ink bottle 50 is attached to a predetermined position of the waste ink bottle case 100, the waste ink bottle 50
The cap structure incorporated on the side is automatically opened, and one end of the total discharge pipe 49 connected to the waste ink bottle case 100 side and the recovery port of the waste ink bottle 50 communicate with each other.

Further, a fixed position detecting means (bottle sensor 54) shown in FIG. 2 for detecting whether the waste ink bottle 50 is mounted at a predetermined position of the main body 1B (waste ink bottle case 100) is provided. Using signal, body 1
When the waste ink bottle 50 is not mounted at the predetermined position of B (101), the open (start) state of each of the pumps 45 (= 64) and 48 forming each ink discharging means is forcibly prevented (prohibited). ) It is formed as possible. The printed circuit board 101 controls.

Further, similarly to the case of the ink supply processing module 1 described above, the waste ink discharge processing module 2 is provided with the first waste ink for a plurality of (4) ink colors (cyan, yellow, magenta and black). Tank (4
2), the second waste ink tank (62), the waste ink bottle 50, the first discharge means, the second discharge means and the like can be integrated. In this way, a large number of pipes and the like can be installed neatly, and the size and cost of the color inkjet printer can be further promoted.

[0062]

According to the first aspect of the present invention, the first waste ink tank, the second waste ink tank, the waste ink bottle, and the waste ink in the first waste ink tank are transferred to the waste ink bottle. The first discharging means for discharging and the second discharging means for discharging the waste ink in the second waste ink tank to the waste ink bottle are formed in an integral structure incorporated in a main body detachable from the ink jet printer. Is a waste ink discharge processing module, which is low cost and compact, which can reduce the size and cost of the inkjet printer, simplify the structure and facilitate handling, and cause abnormalities and failures in the ink discharge means. In this case, it is easier to investigate the cause than in the case of a layout in which the components are individually arranged and piped, and a continuous printing operation can be performed by replacing the module. That is, the structure is simple and easy to assemble, and the cause of an abnormality or the like can be quickly and easily and accurately recovered, including the replacement of parts, and the size and cost of the entire printer can be reduced.

According to the second aspect of the present invention, the first discharge valve and the second discharge valve serve to discharge each waste ink in the first waste ink tank and the second waste ink tank. Since it is formed of one common discharge valve having a pump function capable of forcibly discharging the waste ink to the bottle, the same effect as that of the invention of claim 1 can be obtained, and further, the first waste ink can be obtained. The degree of freedom in the layout of the vertical relationship between the tank, the second waste ink tank and the waste ink bottle can be greatly increased, and further downsizing and cost reduction can be achieved.

According to the third aspect of the present invention, there is provided the third discharging means having a pump function capable of forcibly discharging the waste ink containing air in the first waste ink tank to the waste ink bottle. Therefore, in addition to providing the same effects as in the case of the first and second aspects of the invention,
Further, the vapor-like (fog-like) ink can be prevented from scattering to the surroundings, so that the surrounding ink stains can be more reliably prevented.

Further, according to the present invention, when the fixed position detecting means detects that the waste ink bottle is not mounted at the predetermined position of the main body, the open state of each valve is forcibly prevented. Since it is formed so as to be able to provide the same effects as those of the inventions according to the first to third aspects of the present invention, even if the waste ink bottle is forgotten to be attached, the ink stains can be reduced. It can be reliably prevented.

Further, in the invention of claim 5, the first waste ink tank, the second waste ink tank, the waste ink bottle and the like for a plurality of colors are incorporated in the main body.
In addition to the effects similar to those of the inventions according to the fourth to fourth aspects of the present invention, a large number of pipes and the like can be arranged in an orderly manner, and the size and cost of the color inkjet printer can be further promoted.

[Brief description of the drawings]

FIG. 1 is an overall system diagram showing an embodiment of the present invention.

FIG. 2 is a front view of the waste ink discharge processing module.

FIG. 3 is a side view of the waste ink discharging module.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ink supply processing module 1B main body 2 Waste ink discharge processing module 2B main body 10 Nozzle head 11 Ink chamber 12 Ink jet nozzle 20 Ink supply means 21 Ink bottle 22 Ink tank 30 Ink return means 40 Ink discharge means 41 Ink receiver 42 Receiving tank (No. 1 waste ink tank) 43 communication pipe 44 first discharge pipe (first discharge means) 45 first discharge valve (first discharge means) 47 third discharge pipe (third discharge means) 48th 3 discharge valve (third discharge means) 49 total discharge pipe 50 waste ink bottle 54 bottle sensor (fixed position detection means) 60 overflow discharge means 61 overflow pipe 62 overflow tank (second waste ink tank) 63 second Discharge pipe (second discharge means) 64 Second discharge valve ( 2 of the discharge means) 70 air vent means 100 waste ink bottle case

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hitoshi Shioki 6-78 Minami-cho, Mishima-shi, Shizuoka Inside Tec Mishima Plant

Claims (5)

[Claims] A waste ink discharging module of an ink jet printer formed so as to supply ink from an ink tank to a nozzle head having a plurality of ink jet nozzles, and to print on a medium while discharging ink from a selected ink jet nozzle. The first capable of temporarily storing waste ink from the nozzle head;
Waste ink tank, a second waste ink tank capable of temporarily holding waste ink from the ink tank, a waste ink bottle, and a first waste ink tank for discharging waste ink in the first waste ink tank to the waste ink bottle. And a second discharging means for discharging the waste ink in the second waste ink tank to a waste ink bottle are formed in an integral structure in which the main body is detachable from the ink jet printer. , Waste ink discharge processing module of inkjet printer. 2. A first discharge valve forming the first discharge means and a second discharge valve forming the second discharge means, wherein the first discharge valve and the second discharge valve form a waste ink in the first waste ink tank and the second discharge valve. 2. The waste ink discharge processing module of an ink jet printer according to claim 1, further comprising a common discharge valve having a pump function capable of forcibly discharging waste ink in the waste ink tank into the waste ink bottle. 3. A discharge means having a pump function capable of forcibly discharging waste ink containing air in the first waste ink tank to the waste ink bottle is provided. Item 3. A waste ink discharging module of the ink jet printer according to Item 2. 4. A fixed position detecting means, wherein the waste ink bottle is detachably formed at a predetermined position of the main body and which can detect whether or not the waste ink bottle is mounted at a predetermined position of the main body. A waste ink discharging module for an ink jet printer according to any one of claims 1 to 3. 5. The main body incorporates the first waste ink tank, the second waste ink tank, the waste ink bottle, the first discharge unit, the second discharge unit, and the like for a plurality of colors. A waste ink discharging module for an ink jet printer according to any one of claims 1 to 4, wherein the module is a waste ink discharging module.