JP2000108378A - Ink cartridge insert mechanism of ink jet printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lower the max. load required in mounting when a plurality of ink supply needles or waste ink recovery needles are thrust in a cartridge in cartridge mounting operation in the ink cartridge insert mechanism of an ink jet printer. SOLUTION: In an ink jet printer, by shifting the positional relation of a plurality of an ink supply needle 31 and a waste ink needle 35, the timings of the needles thrust in a plurality of the ink taking-out port 22 and waste ink recovery port 26 of an ink cartridge 20 are not overlapped and the max. load at a time when the ink supply needle 31 is thrust in the ink taking-out port 22 and the max. load when the waste ink needle 35 is thrust in the waste ink recovery port 26 are dispersed to reduce ink cartridge insert max. load.

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 using an ink cartridge as an ink supply source, and more particularly to an ink cartridge insertion mechanism.

[0002]

2. Description of the Related Art As an ink cartridge insertion mechanism for an ink jet printer of this type, an ink needle is disposed in an ink cartridge mounting portion of the ink jet printer, and the ink supply needle is formed on an ink cartridge side. There is known a configuration in which an ink cartridge is slidably mounted so as to be inserted into the ink cartridge.

[0003] Such an ink cartridge insertion mechanism is disclosed, for example, in Japanese Patent Application Laid-Open No. Hei 5-16378 by the present applicant. In the ink cartridge insertion mechanism disclosed in this publication, a flexible ink bag filled with ink, an ink outlet formed in the ink bag, and a rectangular shape containing the ink bag are used as the ink cartridge. A hard plastic case is used. An ink outlet formed in the ink bag is exposed at the front end surface of the plastic case. The ink cartridge is slid horizontally so that the ink supply needle arranged in the ink cartridge mounting portion of the ink jet printer is inserted into the ink outlet.

[0004] Here, when a plurality of ink bags of a plurality of colors are arranged in one ink cartridge, or a collection section capable of collecting waste ink is arranged in addition to the ink supply, an ink supply needle and a waste ink are disposed. Needles need to be arranged for multiple needles. When the ink cartridge is slid and mounted, a plurality of needles must break through a plurality of ink stoppers of an ink outlet or a waste ink recovery port of the ink cartridge, and therefore, a strong force is required for mounting.

[0005]

Generally, one ink cartridge of an ink jet printer has a case where a single color is arranged and a case where a plurality of colors are arranged. In addition, a waste ink collecting absorbent may be provided on the ink cartridge to collect the waste ink. In such a case,
It is necessary to arrange a plurality of protrusions, such as ink supply protrusions or waste ink recovery protrusions. When the ink cartridge is slid and mounted, the plurality of protrusions must break through the plurality of ink stoppers at the outlet of the ink supply protrusion and the outlet of the waste ink recovery protrusion. A heavy load is applied.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an ink-jet printer having an ink cartridge mounting operation in which a plurality of protrusions of an ink supply protrusion or a waste ink recovery protrusion pierce an ink cartridge to reduce the maximum load required for mounting the ink cartridge. It is to propose a cartridge insertion mechanism.

[0007]

According to the present invention, a single ink cartridge has at least two or more connection portions for ink to flow, and is inserted into the connection portion of the ink cartridge on the printer body side. In the ink cartridge insertion mechanism of the ink jet printer which inserts the ink cartridge in the axial direction of the protrusion on the printer body side, when the ink cartridge is inserted, one of the protrusions causes the ink of the ink cartridge to flow. The protrusions and the ink of the printer main body flow at a timing different from the timing at which the protrusions are inserted into the connection portion for inserting the remaining protrusions into the connection portion at which the ink of the ink cartridge flows. Characterized in that the connecting portion is disposed.

In the ink cartridge insertion mechanism of the present invention, in order to shift the timing at which the plurality of protrusions are inserted into the connection portion for flowing the ink of the ink cartridge, the length of the plurality of protrusions on the printer main body side is changed. The position may be changed, the positions of the plurality of connection portions for the ink in the ink cartridge to flow may be changed, or a combination of these may be used.

Here, when a single color or a plurality of colors are arranged in one ink cartridge of an ink jet printer, the ink cartridge is further provided with an absorbent for collecting waste ink so that the waste ink is removed. May be collected. In the present invention, the combination of the plurality of connection portions for the ink of the ink cartridge to flow and the protrusions for insertion into the connection portion on the printer main body side is used for ink supply or waste ink recovery and both. This is true for any configuration.

With this configuration, the maximum insertion load generated when one of the protrusions is inserted into the connection portion for flowing the ink of the ink cartridge, and the remaining protrusion allows the ink of the ink cartridge to flow. Therefore, the maximum insertion load generated when the ink cartridge is inserted into the connection portion can be dispersed, so that the maximum ink cartridge insertion load can be reduced as compared with the related art.

When the ink cartridge is slid and mounted, the plurality of protrusions and the connection portion through which the ink of the ink cartridge flows generally include:
It is composed of metal needles and rubber ink stoppers, and has a structure that prevents ink from leaking.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an ink jet printer having an ink cartridge insertion mechanism according to the present invention will be described with reference to the drawings.

(Overall Configuration of Inkjet Printer) FIGS. 1 and 2 are perspective views of an inkjet printer to which the present invention is applied, as viewed from obliquely forward and obliquely backward, respectively. FIG. FIG.

Referring to these drawings, the ink jet printer 1 has a roll paper loading mechanism 2 and a paper feed port 3 for cut paper of A4 size or the like, slip paper, or the like.
The roll paper 4 supplied from the roll paper loading mechanism 2 and the slip paper 5 inserted from the paper feed port 3 are moved to the printing position 11.
The transport path is configured to be transported through (the area surrounded by the dashed line in FIG. 1). Printing position 11
The ink jet head 8 moves the carriage mechanism 9 so that the inkjet head 8 faces the surfaces of the roll paper 4 and the slip paper 5 passing therethrough.
Is held by

The carriage mechanism 9 includes a guide shaft 6
A carriage 7 held reciprocally along the guide shaft 6 in a direction orthogonal to the direction in which the roll paper 4 and the slip paper 5 are transported, and a carriage driving motor (not shown). .

The carriage 7 is capable of reciprocating in the width direction within a range including the print position 11.
1, a capping mechanism 11B, which is a retracted position of the inkjet head 8, is located on one side in the width direction.
Is disposed. In a state in which the ink jet head 8 waits for a printing operation, the nozzle surface is set to a state in which the nozzle surface is closed by the capping surface 11 </ b> C, so that the ink meniscus of each ink nozzle is prevented from retreating, ink drying, and the like.

Ink is supplied to the inkjet head 8 from an ink supply unit 10 mounted at a position adjacent to the roll paper loading mechanism 2 via an ink tube (not shown). As can be seen from FIG. 2, the ink supply unit 10 includes an ink cartridge mounting unit 30 in which the ink cartridge 20 is removably mounted.

(Ink Supply System and Ink Cartridge) FIG. 4A shows an outline of an ink supply system for supplying ink to the inkjet head 8. In the ink cartridge mounting section 30 of the ink supply section 10,
A metal ink supply needle 31 and a waste ink needle 35 are arranged, and the ink cartridge 20 is mounted so that the ink supply needle 31 and the waste ink needle 35 are completely inserted. The ink supplied from the ink cartridge 20 to the ink supply needle 31 is supplied to the ink jet head 8 via the ink tube 32. By driving the inkjet head 8, ink droplets are ejected from each ink nozzle (not shown) onto the recording paper conveyed at the printing position 11. In a state in which the ink jet head 8 is closed by the capping surface 11C of the capping mechanism 11B, the ink pump 33 is driven to suck ink from the nozzle surface, and the ink is discharged through the waste ink tube 34 and the waste ink needle 35. The waste ink can be collected by a waste ink collecting unit (not shown) arranged in the cartridge 20.

FIG. 4B shows the ink cartridge 20.
The outline of the internal structure of is shown. Ink cartridge 2
Reference numeral 0 denotes a flexible ink bag 21 filled with ink, an ink outlet 22 formed in the ink bag 21, a hard case 23 containing the ink bag 21, and a waste ink The configuration includes an ink recovery unit 25. The case 23 includes a case main body 23a and a case lid 23b. A needle insertion hole 23d through which the ink supply needle 31 can be inserted into the ink outlet 22 from the outside, and a waste ink needle A needle insertion hole 23f into which the ink cartridge 35 can be inserted into the ink recovery port 26 of the ink recovery unit and a hole 23e for positioning the ink cartridge are opened. Note that a detection plate 24 for detecting the remaining amount of ink is attached to a side surface of the ink bag 21.

(Ink Cartridge Insertion Mechanism) Next, the structure of the ink supply unit 10 incorporated in the ink jet printer 1 will be described.

FIGS. 5A and 5B are views showing the state of the ink supply unit 10 before the ink cartridge 20 is mounted. FIGS. 6A and 6B show the state of the ink cartridge 20 by the slide mechanism. FIG. 7 is a diagram showing a state before and after sliding the ink cartridge toward the ink supply needle 31 and the waste ink needle 35. FIG. 7 is a diagram showing an ink absorption / needle protection mechanism.

As shown in these figures, as shown in FIG.
0 is provided with an ink cartridge mounting section 30 to which the ink cartridge 20 is removably mounted. The ink cartridge mounting portion 30 is mounted horizontally at a position where the ink supply needle 31 and the waste ink needle 35 are at the same height,
A hood portion 40 is provided in which the tip ends of the ink supply needle 31 and the waste ink needle 35 are open. A positioning pin 42 projects horizontally from the side surface of the hood 40 in the same direction as the ink supply needle 31 and the waste ink needle 35. Further, the hood section 40 incorporates an ink absorption / needle protection mechanism 70 for collecting ink leaked from the ink supply needle 31 and the waste ink needle 35 when the ink cartridge is not mounted, and for protecting these needles. ing.

Further, the ink cartridge mounting section 30 includes:
A box-shaped ink cartridge receiving portion 50 slidable in the axial direction of the ink supply needle 31 and the waste ink needle 35, that is, in the horizontal direction with respect to the hood portion 40, and the ink cartridge receiving portion 50 is slid in the horizontal direction. The slide mechanism 60 is provided.

First, the box-shaped ink cartridge receiving section 50 will be described. The upper side of the ink cartridge receiving section 50 is an opening 51, and the ink cartridge 20 is moved vertically downward from the upper side of the upper opening 51. It can be mounted inside the receiving section 50. That is, the ink cartridge 20 can be received from a direction orthogonal to the ink supply needle 31. The front end face 52 of the ink cartridge receiving portion 50 has openings 5 at positions corresponding to the needle holes 23d and 23f formed in the front end face 23 of the attached ink cartridge 20.
2d is formed, and a positioning hole 52e is formed at a position corresponding to the positioning hole 23e.

The slide mechanism 60 for sliding the ink cartridge receiving portion 50 includes a guide frame 61 which supports the receiving portion 50 so as to be slidable.
The guide frame 61 has a receiving portion 50
A rail groove 62 is formed in which a guide rail 56 formed along the bottom surface is slidably fitted. On the side surface of the ink cartridge receiving portion 50, a rack 63 is formed to face downward in the sliding direction. On the other hand, a pinion 64 is rotatably attached to the guide frame 61 so as to be engaged with the rack 63. On the side surface of the pinion 64, an operation lever 65 extends substantially radially from a center 66 of rotation of the pinion 64.

(Ink Absorption / Needle Protection Mechanism) The ink absorption / needle protection mechanism 70 will be described mainly with reference to FIGS. The ink absorbing / needle protection mechanism 70 includes a revolving plate 73 that is rotatably mounted on both side walls of the hood portion 40 about pivots 71 and 72, and a revolving plate 7.
3 is provided with a rectangular parallelepiped ink absorbing member 74 attached to the back surface (lower surface) of the third member 3 and a pair of torsion springs 75 and 76 for applying elastic force to the revolving plate 73.

The revolving plate 73 is made of a hard material such as a metal plate or a hard plastic plate. The revolving plate 73 has a horizontal plate portion 731 extending in the horizontal direction when the ink cartridge is not mounted, and a slanted portion inclined downward from the front end of the horizontal portion 731. Inclined plate part 7
32, bearing plates 735 and 736 rotatably supported by the support shafts 71 and 72 are formed on both sides of the rear end portion of the horizontal plate portion 731.

In the horizontal plate portion 731 of the revolving plate 73, slits 733 and 734 having widths sufficiently larger than the outer diameters of the two ink supply needles 31 and waste ink needles 35 are provided at positions corresponding to the two ink supply needles 31 and the waste ink needles 35. Is formed. These slits 7
Recessed grooves 741 and 742 having a substantially semicircular cross section are formed on the upper surface of the ink absorbing material 74 facing 33 and 734. The width and depth of these grooves 741 and 742 are also set to dimensions sufficiently larger than the outer diameters of the ink supply needle 31 and the waste ink needle 35. In the illustrated example, the groove width and the slit width are the same.

Here, the revolving plate 73 is held by a pair of torsion springs 75 and 76 so that the horizontal plate portion 731 is horizontal. To be precise, the horizontal plate portion 731 is held so as to be parallel to the ink supply needle 31 and the waste liquid needle 35. As shown in FIG. 7B, the pivot plate 73 has an ink supply needle 3 in each of the grooves 741 and 742 of the ink absorbing member 74, as shown in FIG.
1. The setting is such that the waste liquid needle 35 is completely received. Further, slits 733, 734
The grooves 741 and 742 are set to have a sufficient length so that the distal end portions of the needles 31 and 35 are completely accommodated.

Therefore, in the state shown in FIG. 7, the ink leaking from the ink supply needle 31 or the waste ink needle 35 is absorbed by the ink absorbing material 74 and collected there. Therefore, the state where the horizontal plate portion 731 of the revolving plate 73 is horizontal is the ink absorption position of the ink absorbing material 74.

On the other hand, as shown in FIG. 8, when the revolving plate 73 is revolved downward against the spring force of the pair of torsion springs 75, 76, the respective grooves 74 of the ink absorbing material 74 are formed.
In this state, the leading end portions of the ink supply needle 31 and the waste ink needle 35 accommodated in 1, 742 are exposed. As a result, the needles 31 and 35 are
Can be inserted into the needle insertion holes 23d and 23f formed on the side of. In other words, the revolving plate 73 and the ink absorbing member 74 can be moved to a retracted position that does not hinder the mounting of the ink cartridge 20.

(Attaching Operation of Ink Cartridge) The inserting operation of the ink cartridge 20 in the ink supply section 10 of the present embodiment configured as described above will be described with reference to FIGS.

First, as shown in FIGS. 5A and 5B,
With the ink cartridge receiving portion 50 pulled out of the hood portion 40, the ink cartridge 20 is pushed into the upper opening 53 thereof from the upper side as indicated by an arrow. In this state, the front end face 2 of the ink cartridge 20
The needle holes 23d and 23f and the positioning hole 23e formed in the hole 3 correspond to the opening 52d and the positioning hole 52e formed in the front end face of the receiving portion 50, respectively.

Thus, the state shown in FIG. 6A is formed. After that, the operation lever 65 in the state of being sideways is operated in a direction to raise upward. By this operation, the receiving section 50 on which the ink cartridge 20 is mounted slides horizontally toward the ink supply needle 31 and the waste ink needle 35.

Here, when the ink cartridge receiving portion 50 on which the ink cartridge 20 is mounted is slid, the front surface 5 of the ink cartridge receiving portion 50 is moved.
2, the tip of the inclined plate portion 732 of the revolving plate 73 of the ink absorbing / needle protection mechanism 70 inclined downward is pushed downward. The revolving plate 73 is held at the ink absorbing position (the position shown in FIG. 7) by the torsion springs 75 and 76. However, when the sliding operation is performed against the spring force, the revolving plate 73 is forcibly rotated downward. Can be

As the swivel plate 73 is swiveled, the horizontal plate portion 731 of the swivel plate 73 and the tips of the ink supply needle 31 and the waste ink needle 35 protected by the ink absorbing material 74 are exposed. (Positions shown in FIG. 8) Therefore, the needles 31 and 35 are provided in the openings 52d formed in the front end face 52 of the ink cartridge receiving portion 50 which slides.
, And is gradually inserted into the needle insertion holes 23 e and 23 f formed in the front end face 23 of the ink cartridge 20.

At this time, as shown in FIG. 9, the positional relationship between the ink supply needle 31 and the waste ink needle 35 corresponding to the two ink stoppers of the ink outlet 22 and the waste ink recovery port 26 of the ink cartridge 20 is shifted. Supply needle 3
1 and the waste ink needle 35 are inserted into the two ink stoppers of the ink outlet 22 and the waste ink recovery port 26 of the ink cartridge 20 so that the piercing timing does not overlap. 9A shows a position where the ink absorbing needle is pierced, FIG. 9B shows a position where the waste ink needle is pierced,
This indicates that the ink supply needle 31 pierces the ink outlet 22 of the ink cartridge first, and then the waste ink needle 35 pierces the waste ink recovery port 26. Therefore, the load of the ink supply needle 31 piercing the ink outlet 22 and the load of the waste ink needle 35 piercing the waste ink recovery port 26 are dispersed, thereby reducing the maximum load for inserting the ink cartridge. Of the ink cartridge 20,
The two ink stoppers of the ink outlet 22 and the waste ink recovery port 26 are made of rubber so that no ink leaks when the needle comes off.

Further, as shown in FIG. 6B, when the operating lever 65 is completely raised, the front end surface 52 of the ink cartridge receiving portion 50 hits the side surface of the hood portion 40, and
The horizontally protruding ink supply needle 31 and waste ink needle 35 also pass through the opening 52d on the front end face of the receiving portion and the needle holes 23d and 23f on the front end face of the ink cartridge 20, and the ink intake port 22 therein and the ink recovery Part 2
Fully plugged into 5. As a result, an ink supply system (see FIG. 4) from the ink cartridge 20 to the ink jet head 8 is formed.

On the other hand, the empty ink cartridge 20
In the case where is replaced with a new one, the operation opposite to the above may be performed. That is, the operation is performed such that the operation lever 65 in the state shown in FIG. 6B is tilted rearward. As a result, the ink cartridge receiving portion 50 slides rearward, and the upper opening 53 is completely pulled out of the hood portion 40. Further, the swivel plate 73 of the ink absorbing / needle protection mechanism 70 is swung upward by the spring force of the torsion springs 75 and 76 in conjunction with the sliding operation of the ink cartridge receiving portion 50, and the ink supply needle 3
1. Return to the protection state of the waste ink needle 35 (ink absorption position). That is, the state shown in FIG. Thereafter, both sides of the ink cartridge 20 that are exposed from the cutout portions 57a and 57b formed on both sides of the ink cartridge receiving section 50 may be grasped by hand and pulled out vertically upward.

As described above, the ink supply unit 10 of the ink jet printer 1 of the present embodiment has the ink absorbing / needle protection mechanism 7.
0 to protect the ink supply needle 31 and the waste ink needle 35 from being directly touched by hands when the ink cartridge is not mounted.
The ink leaking from the needles 31 and 35 can be collected and absorbed by the ink absorbing material. Therefore, it is possible to avoid such a problem that the ink leaking from the ink supply needle when the inkjet printer is shipped stains a portion around the ink supply needle.

The swivel plate 73 of the ink absorbing / protecting mechanism 70 is swung to the retracted position without interfering with the insertion operation of the ink cartridge 20 in accordance with the insertion operation of the ink cartridge 20, so that the swivel plate 73 is moved to the ink absorbing position. Also, there is no need to separately attach a mechanism for turning to the retracted position, and the mechanism 70 can be compactly incorporated.

In the above-described example, the mechanism is such that the ink cartridge is inserted into the ink cartridge receiving portion and the ink cartridge receiving portion is slid in this state. However, the ink cartridge itself is slid and inserted. Needless to say, the present invention can be similarly applied to the ink cartridge insertion mechanism.

Further, in the above example, the length of the needle on the printer main body is changed in order to shift the timing at which the two needles are inserted into the ink stopper of the ink cartridge. Or a combination of these. Furthermore, 3
It goes without saying that a configuration of one or more needles and ink stoppers may be employed.

[0044]

As described above, the ink cartridge insertion mechanism of the ink jet printer according to the present invention shifts the positional relationship between a plurality of ink supply needles or waste ink needles, thereby taking out the ink from the corresponding ink cartridge. The timing of the needles piercing the plurality of ink stoppers in the mouth and the waste ink recovery port is prevented from overlapping, and
The maximum load that one needle pierces the ink outlet or the waste ink recovery port and the maximum load that the remaining needles pierce the other ink outlet or the waste ink recovery port are dispersed, so that the maximum load of ink cartridge insertion is smaller than before. Made it possible. Therefore, the operability of inserting the ink cartridge is very easy.

[Brief description of the drawings]

FIG. 1 is a front perspective view showing an inkjet printer to which the present invention is applied.

FIG. 2 is a rear perspective view showing the inkjet printer of FIG. 1;

FIG. 3 is an explanatory diagram illustrating a paper transport path in the inkjet printer of FIG.

4A is a schematic configuration diagram illustrating an ink supply system in the inkjet printer of FIG. 1, and FIG. 4B is an exploded perspective view illustrating a configuration of an ink cartridge.

FIG. 5A is an explanatory diagram showing a state of an ink cartridge mounting mechanism before mounting an ink cartridge, and FIG. 5B is a partial cross-sectional view thereof.

FIG. 6 is an explanatory diagram for explaining an ink cartridge insertion operation in the ink cartridge insertion mechanism.

FIGS. 7A and 7B are diagrams showing an ink absorption / needle protection mechanism incorporated in the ink cartridge insertion mechanism, wherein FIG. 7A is a perspective view showing the state of the ink absorption position, and FIG.
It is sectional drawing of the part cut | disconnected along the -B line.

FIGS. 8A and 8B are views showing an ink absorbing / needle protection mechanism incorporated in the ink cartridge insertion mechanism, wherein FIG. 8A is a perspective view showing a retracted position, and FIG. 8B is a front view thereof.

9A and 9B are diagrams showing a positional relationship between an ink absorbing needle / waste ink needle and an ink outlet / waste ink collecting port in an ink cartridge inserting operation, wherein FIG. 9A is a cross-sectional view showing a position where the ink absorbing needle is pierced, and FIG. () Is a cross-sectional view showing a position where the waste ink needle is pierced.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ink jet printer 2 Roll paper loading mechanism 3 Paper feed port 4 Roll paper 6 Guide shaft 7 Carriage 8 Ink jet head 9 Carriage mechanism 10 Ink cartridge mounting mechanism 11 Printing position 20 Ink cartridge 22 Ink outlet 23 Front end face 23d Insertion of ink supply needle Hole 23f Insertion hole for waste ink needle 23e Positioning hole 25 Projection 26 Waste ink recovery port 30 Ink cartridge mounting section 31 Ink supply needle 35 Waste ink needle 40 Hood section 42 Positioning pin 50 Ink cartridge receiving section 51 Upper opening 52d Ink supply Needle opening 52e Positioning hole 56 Guide rail 60 Slide mechanism 61 Guide frame 62 Rail groove 63 Rack 64 Pinion 65 Operation lever 70 Ink absorption / needle protection mechanism 71, 72 Support shaft 73 Revolving plate 731 Horizontal plate portion 732 Inclined plate portion 733, 734 Slit 74 Ink absorber 741, 742 Concave groove 75, 76 Torsion spring

Claims (6)

[Claims] 1. A single ink cartridge has at least two or more connection portions for ink to flow, and a protrusion for inserting the connection portion of the ink cartridge is arranged on a printer main body side. In an ink cartridge insertion mechanism of an ink jet printer for inserting the ink cartridge in the axial direction of the protrusion on the printer main body side, when the ink cartridge is inserted, one of the protrusions is inserted into the connection portion through which the ink of the ink cartridge flows. The protrusions of the printer body and the connection portion for the ink to flow are arranged such that the remaining protrusions are inserted into the connection portions for the ink flow of the ink cartridge at a timing different from the timing at which the ink flows. Ink for inkjet printer characterized by Cartridges insertion mechanism. 2. The printer according to claim 1, wherein the length of the plurality of protrusions on the printer main body side is changed to shift the timing at which the protrusions are inserted into the connection portion for the ink of the ink cartridge to flow. An ink cartridge insertion mechanism for an ink jet printer. 3. The method according to claim 1, wherein the timing at which the protrusion is inserted into the connection portion is shifted by changing the positions of the plurality of connection portions through which the ink in the ink cartridge flows. Ink cartridge insertion mechanism for inkjet printer. 4. The ink jet printer according to claim 1, wherein at least one of the connecting portions for flowing ink is:
An ink cartridge insertion mechanism for an ink jet printer, which is for supplying ink. 5. The ink jet printer according to claim 1, wherein at least one of the connection portions for flowing ink is:
An ink cartridge insertion mechanism for an ink jet printer, which is for collecting waste ink. 6. The printer according to claim 1, wherein the protrusion on the printer main body side is a metal needle, and the connection portion through which the ink of the ink cartridge flows is made of rubber. An ink cartridge insertion mechanism for an ink jet printer, characterized in that: