JPH08230210A - Ink jet device - Google Patents

Abstract

(57) [Abstract] [Purpose] Even when the head holder is left with the ink container removed, the parts replacement cost is low and the head holder does not become dirty. An ejection head 78 is attached to the front surface of a front wall 90 of a head holder 80, and a manifold section 120 is provided on the rear surface of the front wall 90 so as to project. A mesh filter 126 is fixed to the tip of the manifold portion 120. A rubber support cylinder 130 is detachably supported on the outside of the manifold portion 120, and a porous body 138 is attached to a protruding portion of the support cylinder 130. When the ink container is attached to the head holder 80, the porous body 1
38 is projected into the ink supply port of the ink container to supply the ink to the ejection head 78. Even if the porous body 138 is dried by leaving the ink container removed,
Only the porous body 138 and the support cylinder 130 need to be replaced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet device, and more particularly, to a connection between an ink container and a head holder.

[0002]

2. Description of the Related Art An ink ejecting apparatus is provided in, for example, an ink jet recording apparatus, and ejects ink onto a recording medium to perform recording. For this reason, an ink ejecting apparatus generally includes an ink supply port on the front surface, an ink container that contains ink, an ejection head that ejects ink supplied from the ink container, and the ejection head and the ink container. And a head holder for holding. The head holder has a connecting portion that is connected to the ink supply port of the ink container, a connecting portion holding portion that holds the connecting portion, and a container holding portion that detachably holds the ink container. When the head is held and the ink container is held by the head holder, the connecting part is connected to the ink supply port, and the ink in the ink container is supplied from the ink supply port to the ejection head through the connecting part. .

In a conventional ink ejecting apparatus, a head holder has a container holding wall for holding an ink container, and a connecting portion holding projecting from one end of the container holding wall in a direction parallel to the ink ejecting direction. A wall, a connecting portion is fixed to an opening end of the ink passage of the manifold portion, the manifold portion protruding from the connecting portion holding wall to the ink container side and having an ink passage opening to the protruding end face. And a mesh filter. The manifold portion is fitted into the ink supply port to supply the ink, and the mesh filter prevents foreign matter from entering the ink passage.

Further, the head holder is provided with a container holding wall for holding the ink container, and a connecting part holding wall projecting from one end of the container holding wall in a direction parallel to the ink ejection direction. Is removably fitted to the outside of the manifold part, and the tip part of the manifold part is formed so as to project from the connecting part holding wall to the ink container side and has an ink passage opening to the projecting end face. Inside the support cylinder of the porous body, the support cylinder further projected from the projecting end surface of the portion, the porous body fitted to the projection of the support cylinder, and having one end projected from the support cylinder. There is also an ink ejecting apparatus having a mesh filter fixed to the other end located. The support cylinder, the porous body, and the mesh filter are integrally connected to and detached from the manifold part. The manifold part is fitted to the ink supply port together with the connection part to connect the porous body and the mesh filter. Ink is supplied to the ejection head through the ink.

[0005]

However, in the former ink ejecting apparatus, if the head holder is left with the ink container removed, the mesh filter is exposed to the atmosphere and adheres to the mesh filter. The ink that has set solidifies and blocks the mesh. Therefore, when the ink container is attached to the head holder next time, the flow of ink from the ink container to the ink passage is blocked and the ink is not ejected smoothly. Therefore, the mesh filter must be replaced together with the ejection head. Cost is high.

In the latter ink ejecting apparatus, when the ink container is detached from the head holder, if the connecting member is left attached to the manifold portion, the porous body dries while containing the ink, and then the ink container is contained. When the container is attached to the head holder, the solidified ink prevents the ink in the ink container from flowing into the ink passage. Therefore, it is necessary to replace the porous body, but it is also necessary to replace the support cylinder and the mesh filter that are integrally provided with the porous body, which increases the cost. In addition, if the connecting tool is removed from the manifold part to prevent the porous body from drying, the mesh filter will also come off, and foreign matter will enter the openings of the ink passages, resulting in ink clogging of the ejection head and the ejection head being used. It becomes impossible, and the ejection head must be replaced, which increases the cost. Further, even when the connecting tool is replaced by drying the porous body, or when the connecting tool is removed to avoid the drying of the porous body, the mesh filter also comes off when the connecting tool is removed from the manifold part, so that the ink passage There is also a problem that ink spills from the head holder and stains the head holder.

According to each of the first to third aspects of the present invention, even when the head holder is left with the ink container removed, ink replacement costs are low and ink does not stain the head holder. It is an object of the invention to provide an injection device. The invention of claim 2 further aims to facilitate holding of the porous body on the support cylinder, and the invention of claim 3 facilitates maintaining liquid-tightness between the ink supply port and the connecting portion. The task was to do.

[0008]

According to a first aspect of the present invention, in order to solve the above-mentioned problems, a connecting portion of a head holder is
(a) A manifold part that is provided so as to project from the connecting part holding part of the head holder to the ink container side and has an ink passage opening to the projecting end face, and is fixed to the opening end of the ink passage of the manifold part. A mesh filter,
(b) a support tube having a tubular shape and detachably fitted to the outside of the manifold section; and (c) a porous body held at the tip of the support tube and covering the mesh filter. The summary is that it is included.

According to a second aspect of the present invention, the supporting cylinder is further projected from the projecting end face of the manifold portion in a state of being fitted to the manifold portion, and the porous body is fitted to the protruding portion. It is a summary. A third aspect of the invention is summarized in that the support cylinder has an elastically deformable seal portion that is in close contact with the peripheral edge portion of the opening of the ink supply port to prevent ink leakage. .

[0010]

In the ink ejecting apparatus according to the first aspect of the invention, the connecting portion is fitted in the ink supply port, and the ink in the ink container flows into the ink flow path through the porous body.
At this time, the mesh filter prevents foreign matter in the ink from entering the ink flow path. The mesh filter is fixed to the opening end of the ink passage of the manifold part, and only the support cylinder and the porous body are attached to and detached from the manifold part. Therefore, when the head holder is left with the ink container removed and the porous body is dried, the porous body is replaced with a new one together with the support cylinder.

In the ink ejecting apparatus according to the second aspect of the present invention, the support cylinder is provided with a projecting portion projecting from the manifold portion, and if a porous body is fitted to the projecting portion, the support body is provided with the porous body. Can be held. In the ink ejecting apparatus according to the third aspect of the present invention, when the connector is fitted in the ink supply port, the seal portion is in close contact with the peripheral edge portion of the opening of the ink supply port to prevent ink leakage.

[0012]

As described above, according to the first aspect of the present invention, when the ink container is removed and the head holder is left as it is, the porous body and the support cylinder are left attached to the manifold portion. , The porous body dries,
Drying of the mesh filter is prevented. In addition, when the porous body is dried, the mesh filter is fixed to the manifold part, and only the support cylinder and the porous body can be removed from the manifold part. Therefore, it is necessary to replace only the porous body and the support cylinder. Often, the replacement cost is lower than when replacing the support cylinder, the porous body, and the mesh filter, or when replacing the jet head. Further, even when the porous body and the support cylinder are removed from the manifold portion, the ink passage of the manifold portion is covered with the mesh filter, so that the ink does not spill and the head holder does not get dirty.

According to the invention of claim 2, the same effect as that of the invention of claim 1 can be obtained, and it becomes easy to hold the porous body in the support cylinder, and both the manifold portion and the porous body are provided. Since it is fitted into the support cylinder, the relative positioning between the porous body and the manifold portion can be facilitated. According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the effect of facilitating prevention of ink leakage from the ink supply port is obtained.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The preferred embodiments of the present invention will be listed below, and related explanations will be given if necessary. (1) The seal portion includes a flange portion that extends radially outward from the base end of the support cylinder, and a flare portion that extends from the flange portion toward the ink container while increasing the inner dimension. The ink ejecting apparatus according to claim 1. When the ink container is attached to the head holder, the flare portion is brought into close contact with the peripheral portion of the ink supply port. Since the flare portion has the inner dimension increased toward the ink container side, it can easily come into close contact with the peripheral portion of the ink supply port, and ink leakage can be reliably prevented.

(2) The ink jet apparatus according to any one of claims 1 to 3 and aspect 1, wherein the support cylinder includes a taper cylinder whose outer diameter gradually decreases toward the front end side. In the device of this aspect,
When the support cylinder is fitted into the ink supply port when the ink container is attached to the head holder, interference with the ink supply port is easily avoided by the tapered portion of the support cylinder.

(3) The ink ejecting apparatus according to any one of claims 1 to 3 and aspects 1 and 2, wherein the support cylinder is made of a rubber-like elastic material. The support cylinder is elastically deformable, and when fitted to the ink supply port even if the seal portion is not formed, it can closely contact the opening peripheral edge of the ink supply port and prevent ink leakage. If the seal portion is provided, the seal portion made of the rubber-like elastic material surely prevents the ink from leaking. Further, when the ink container is attached to the head holder, even if it interferes with the ink supply port, it can be elastically deformed and fit into the ink supply port. Further, as described in the embodiment section, the ink container can be biased and positioned in a direction parallel to the ink ejection direction.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An ink jet recording apparatus equipped with an ink ejecting apparatus, which is an embodiment common to the inventions of claims 1 to 3, will be described below in detail with reference to the drawings. In FIG. 1, 1
0 is the platen. The platen 10 has a cylindrical shape extending in the axial direction, and is attached to a casing 12 of the inkjet recording apparatus so as to be rotatable about its own axis by a shaft (not shown) as shown in FIG. The casing 12 is one component of the frame that is the apparatus main body.

The platen 10 is rotated in the direction indicated by the arrow A in FIG. 1 by a rotation driving device (not shown), and the recording paper 28 as a recording medium is fed in the direction indicated by the arrow D.
The recording paper 28 is supplied in the direction of arrow C from a paper supply port (not shown) behind the casing 12, is fed by the rotation of the platen 10, and is discharged from a paper discharge port (not shown).

The ink ejecting device 3 is opposed to the platen 10.
0 is provided. The ink ejecting apparatus 30 is mounted on the carriage 32. As shown in FIG. 2, the carriage 32 has a bottom wall 34, and a front wall 36 and a rear wall 38 that rise from the front end portion and the rear end portion of the bottom wall 34, respectively. At a rear portion thereof, a guide rail 42 slidably fitted to a guide rod 40 arranged parallel to the rotation axis of the platen 10 and arranged at the rear portion parallel to the guide rod 40 (not shown in FIG. 1). Have been engaged).

The front-back direction is a direction parallel to the ink ejection direction, and the downstream side of the ink ejection device 30 and the carriage 32 in the ink ejection direction is the front side, and the upstream side thereof is the rear side. The inkjet recording apparatus is an apparatus for recording by ejecting ink in a horizontal direction, and the front-rear direction is a horizontal direction. However, for the inkjet recording apparatus, the side on which the ink ejecting apparatus 30 is provided from the platen 10, that is, the upstream side in the ink ejecting direction is the front side, which is opposite to the front-back direction of the ink ejecting apparatus 30 and the carriage 32. Further, in the ink jet recording apparatus of this embodiment, since the ink ejection direction is horizontal as described above, the up and down direction is the ink ejection direction and the movement direction of the ink ejection apparatus 30 and the width direction of the ink jet recording apparatus. Is a direction orthogonal to a certain direction.

As shown in FIG. 1, the carriage 32 is engaged with a timing belt 48 wound around a pair of pulleys 44 and 46, and one pulley 44 is rotated by a carriage drive motor 50, The carriage 32 is moved along the platen 10 in the arrow B direction by sending the timing belt 48. These pair of pulleys 44, 46, timing belt 48,
The carriage driving motor 50 constitutes a carriage moving device 52.

Recording is performed by reciprocating the ink ejecting device 30 in a predetermined recording region by the movement of the carriage 32. When recording is completed, one of the recording regions in the ink ejecting device moving direction is moved. It is moved to the non-recording area provided on the side. Incidentally, acceleration / deceleration areas are provided on both sides of the constant speed movement area, which is a recording area, respectively.
When the direction is changed, the carriage 32 is accelerated and decelerated, and the ink ejecting device 30 is moved at a constant speed in the recording area so that recording is uniformly performed. Therefore, the acceleration / deceleration area is a part of the non-recording area.

As shown in FIG. 1, an ink jet head cleaning device 190 and a cap device 19 are provided in a non-recording area provided on one side of the recording area in the holder moving direction.
2 are provided side by side in series with the platen 10 in the holder moving direction. Ink jet head cleaning device 190
Is a device that wipes the ink adhering to the ink ejection surface of the ejection head, which will be described later.The cap device covers the ink ejection surface during non-recording to prevent the nozzle tip from drying and preventing dust from entering the ink flow path. However, since the present invention is not directly related to the device, the description thereof will be omitted.

The carriage 32 is formed with engaging holes 54 penetrating in the front-rear direction at two positions separated from each other in the carriage movement direction of the front wall 36 (only one is shown in FIG. 2). . As shown in FIG. 4, the rear wall 38 is provided with an ink container hook 56 at the center in the carriage movement direction. As shown in FIG. 3, the ink container hook 56 has a U-shape that opens upward, and the upper end of the arm portion 58 on the front side of the U-shape has an inclined surface 60 that inclines downward toward the front. A protrusion 62 is provided. The lower surface of the engagement protrusion 62 is an inclined surface 63 that inclines rearward as it goes downward.

As shown in FIG. 4, the rear wall 38 is also provided with head holder hooks 64 on both sides of the ink container hook 56 in the carriage movement direction. As shown in FIG. 2, the head holder hook 64 has a U-shape that opens upward, and the front arm portion 66 of the U-shape has an engaging projection having an inclined surface 68 that inclines downward toward the front. 70 is provided.

As shown in FIG. 2, the ink ejecting apparatus 30 has an ejecting head 78, a head holder 80, and an ink container 82, and is attached to the carriage 32 at the head holder 80. The head holder 80 is shown in FIG.
As shown in FIG. 6, the bottom wall 86, the side walls 88 rising from both edges of the bottom wall 86 extending in the front-rear direction, and the bottom wall 86.
And a front wall 90 rising from the front part of the.

The front wall 90 is provided with engaging projections 94 projecting forward at two positions separated from each other in the width direction on the lower part of the front surface (only one is shown in FIG. 2). The bottom surface of the engaging protrusion 94 has an inclined surface 9 that inclines upward toward the front.
It is supposed to be 6. Further, as shown in FIG. 5, engaging projections 98 are provided on the rear end surface of the bottom wall 86, which are separated from each other in the width direction, so as to project rearward. As shown in FIG. 2, the protruding end surface of the engagement protrusion 98 is an inclined surface 100 that inclines forward as it goes downward. The engaging projection 98 is also formed with an engaging recess 101 that opens to the upper surface and the rear end surface.

When the head holder 80 is mounted on the carriage 32, the front portion of the head holder 80 is in a tilted position lower than the rear portion, and the front portion of the engaging projection 94 is the carriage 32.
Is fitted in an engagement hole 54 formed in the front wall 36 of the head holder 80, and the rear portion of the head holder 80 is rotated around the engagement position so as to approach the bottom wall 34 of the carriage 32.
With this rotation, the engaging projection 94 moves forward in the engaging hole 54, and the inclined surface 100 of the engaging projection 98 engages with the inclined surface 68 of the engaging projection 70 of the head holder hook 64. The arm portion 66 is bent rearward by the action of the inclined surfaces 100 and 68, the engagement protrusion 98 rides over the engagement protrusion 70, and the head holder 80 is mounted on the carriage 32. The bottom surface of the engaging protrusion 94 is an inclined surface 96, and the protruding end portion is made smaller, so that the engaging hole 5
4 does not increase the vertical dimension of the engaging projection 9
4 can be fitted in the engagement hole 54, and the upper surface of the engagement protrusion 94 can be brought into contact with the inner upper surface of the engagement hole 54 facing the head holder 80 while being supported by the carriage 32.

After the engagement protrusion 98 has passed over the engagement protrusion 70, the engagement protrusion 70 is fitted into the engagement recess 101. Therefore, the head holder 80 is moved from the carriage 32 by the engagement between the upper surface of the engaging protrusion 94 and the inner surface of the engaging hole 54 facing each other and the engagement between the engaging protrusion 70 and the bottom surface of the engaging recess 101. The holder is prevented from being lifted up, and by engaging the two side surfaces of the engaging projection 94 parallel to the front-rear direction with two opposing inner surfaces of the engaging hole 54 and fitting the engaging projection 70 and the engaging recess 101 together. Positional deviation in the moving direction (which is the same as the carriage moving direction) is prevented, and the head holder hook 64 urges it forward to press it against the front wall 36 of the carriage 32, preventing positional deviation in the front-back direction.

When the head holder 80 is to be removed from the carriage 32, the head portion hook of the head holder hook 64 is bent backward to disengage the engagement projection 70 and the engagement projection 98 from each other, and the head is released. The rear portion of the holder 80 is rotated in a direction away from the bottom wall 34 of the carriage 32, and the engagement protrusion 94 is disengaged from the engagement hole 54.

The ejection head 78 is attached to the front wall 90 of the head holder 80. The ejection head 78 has a rectangular parallelepiped shape, and includes a large number of ink flow paths (not shown) and a large number of nozzles provided corresponding to the ink flow paths. These nozzles open on the ink ejection surface (not shown) that is the front surface of the ejection head 78, and are arranged in a straight line. As shown in FIG. 2, a head fitting protrusion 106 is provided on the front surface of the front wall 90, and a fitting recess 108 that opens to the protruding end face is formed. The fitting recess 108 is formed in a posture in which the nozzle row in which the nozzles are arranged is inclined with respect to the holder moving direction.
Is fitted to.

The wall of the ink flow path is formed by a vibrating plate, and when the vibrating plate is deformed by a drive circuit (not shown) based on a command from a control device (not shown), ink is ejected from the nozzles due to a pressure change caused by the deformation. Is jetted. Therefore, as shown in FIG. 2, the ejection head 78 is provided with an FPC (Flexible Printed Circit) substrate 112. The FPC board 112 is a head holder 80.
Rubber holding member 114 disposed on the bottom surface of the bottom wall 86 of the
When the head holder 80 is attached to the carriage 32, the holding member 114 presses the head holder 80 against a circuit board (not shown) arranged on the upper surface of the bottom wall 34 of the carriage 32. The ejection head 78
An FPC retainer 116 is put around the periphery of the so as to protect the FPC board 112.

At the center of the rear surface of the front wall 90 of the head holder 80, as shown in FIG.
20 is projected rearward. In the manifold portion 120, the ink passages 12 that extend parallel to the axis of the manifold portion 120 and open to the projecting end surface of the manifold portion 120.
2 is formed, and the opening end of the ink passage 122 is
A tapered hole 124 having a larger diameter toward the opening end is formed.
Further, a mesh filter 126 made of stainless steel is attached to the protruding end surface of the manifold portion 120.
The mesh filter 126 is a twill weave made of extremely fine stainless steel fibers and has a hole diameter of about 8 microns. For example, a mesh filter manufactured by Mesh Kogyo Co., Ltd. or Manabe Kogyo Co., Ltd. may be used. Used.

A rubber support cylinder 130 is detachably fitted to the outside of the manifold portion 120. Support tube 1
30 is further fitted to the manifold portion 120 so as to further project from the projecting end surface of the manifold portion 120, and the projected portion is a tapered portion 132 whose diameter gradually decreases toward the tip side. The support tube 130 is a tapered tube having a tapered end (the support tube 130 is
The whole may be a tapered cylinder whose diameter gradually decreases toward the tip side). A flange portion 134 extending outward in the radial direction is provided at the base end portion of the support cylinder 130, and the flange portion 13 thereof.
4 and a flare portion 136 that extends rearward while increasing the inner dimension.

A cylindrical porous body 138 is non-detachably fitted to the protruding portion of the support cylinder 130 from the manifold portion 120. One end of the porous body 138 has a support cylinder 130.
And the other end is brought into contact with the mesh filter 126. The porous body 138 is made of felt and has pores having a diameter larger than that of the mesh filter 126. The support cylinder 130 is connected to the manifold section 12
If it is removed from 0, the porous body 138 is also removed, but the mesh filter 126 remains on the manifold section 120 side. The support cylinder 130 and the porous body 138 form a connector 140 that is integral with and can be attached to and detached from the manifold portion 120, and the manifold portion 120 and the mesh filter 126.
At the same time, the ink container 82 is connected to the connecting portion 142. Mesh filter 126, support cylinder 1
30 and the porous body 138 are decomposed | disassembled and shown in FIG.

As shown in FIGS. 3 and 5, a pair of engaging recesses 144 that open to the rear surface of the front wall 90 are formed at positions on both sides of the manifold portion 120 below the front wall 90 of the head holder 80. (Only one is shown in FIGS. 3 and 5). A protrusion 146 is provided so as to protrude rearward from the periphery of the opening of the engaging recess 144. Further, as shown in FIG. 2, the lower inner surface of the engagement recess 144 is continuous with the upper surface 147 of the bottom wall 86, and the inclined inner surface 1 is inclined upward toward the front.
It is said to be 48. The upper inner surface 149 is a horizontal surface. On the rear surface of the front wall 90, first engaging projection receiving portions 150 are provided so as to protrude rearward at positions on both sides of the upper manifold portion 120, respectively. These first engaging projection receiving portions 150
Has a long plate shape in the holder movement direction.

The upper surface 147 of the bottom wall 86 of the head holder 80
A positioning engagement protrusion 154 having a partial disk shape is provided on the base plate in a posture extending in a direction perpendicular to the holder movement direction. The positioning engagement protrusion 154 is at the center of the upper surface 147 in the holder movement direction, and the distance from the engagement recess 144 in the front-rear direction perpendicular to the holder movement direction is the ink container 82.
Is provided at a position larger than the dimension of the holder moving direction. This position is also a position where the distance from the front wall 90 in the direction perpendicular to the holder movement direction is larger than the dimension of the ink container 82 in the holder movement direction.

As shown in FIG. 7, the ink container 82 has a box shape, and an ink supply port 162 having a circular cross section is formed through the center of the front wall 160. Ink container 82
Has an ink supply port 162 on the front surface 165 (see FIG. 3) which is the front surface of the front wall 160. Although not shown, an ink holding member made of urethane foam, in which ink is soaked, is housed in the ink container 82.

As shown in FIG. 7, first engaging protrusions 164 are provided on the upper portion of the front surface 165 of the ink container 82 so as to project at two positions on both sides of the ink supply port 162 in the holder moving direction. ing. First engagement protrusion 164
Has a long plate shape in the holder movement direction. Also, the front wall 160
In the lower part of the front surface 165 of the second front projection 165, the second engagement projections 166 project forward at two positions located on both sides of the ink supply port 162 in the holder moving direction, and as shown in FIGS. 168 is provided so as to be located in the same plane as the bottom surface 169 of the ink container 82.
The upper surface 171 of the second engagement protrusion 166 is a surface parallel to the bottom surface 168.

On the upper portion of the rear surface of the rear wall 170 of the ink container 82, a plate-like operation protrusion 172 extending in the holder moving direction is provided.
And an engaging groove 174 extending in the holder moving direction is formed in the lower portion. The ink container 82 also has
A positioning engagement recess 178 in the shape of a partial disc that opens to the bottom surface 169 is formed. Positioning engagement recess 178
Is provided at a position where the distance from the second engagement protrusion 166 and the ink supply port 162 in the front-rear direction perpendicular to the holder moving direction is larger than the dimension of the ink container 82 in the holder moving direction, and for positioning. The engagement protrusion 154 is accurately formed to have a size that fits without a gap in the holder movement direction.

Further, on the bottom surface 169 of the ink container 82, there are a total of four locations, two locations spaced apart in the holder movement direction and two locations spaced apart from these two locations in the front-back direction perpendicular to the holder movement direction. Hemispherical supported protrusions 180 are provided at the respective positions. The amount of protrusion of the supported protrusion 180, that is, the radius, is such that the second engagement protrusion 16 is in a state where the ink container 82 is placed on the bottom wall 86 of the head holder 80 and the supported protrusion 180 is supported by the upper surface 147.
6 is the inner upper surface 149 of the engaging recess 144.
It is sized to touch.

The casing 12 is provided with a cover 184 as shown in FIG. The cover 184 is attached to the casing 12 so as to be rotatable about an axis parallel to the holder movement direction. The rotation axis is provided on the opposite side of the platen 10 from the ink ejecting apparatus 30, although not shown. Has been. Therefore, the cover 184 is opened and closed above the ink ejecting apparatus 30, and the cover 1 is opened.
When 84 is opened, an opening is formed above the ink ejecting apparatus 30.

When the ink container 82 is attached to the head holder 80, holding the operation protrusion 172, the ink container 82 is paired in a tilted posture with the front part lower than the rear part, as shown by the chain double-dashed line in FIG. The first engaging projections 164 are placed on the first engaging projection receiving portions 150 while fitting between the side walls 88 of the first engaging projections 164. Then, the ink container 82 is moved from the tilted posture to
The connecting portion 142 is projected into the ink supply port 162, and is rotated to the mounting posture mounted on the bottom wall 86 of the head holder 80. At this time, while avoiding interference between the ink supply port 162 and the porous body 138 or the support cylinder 130,
It is necessary to be able to rotate the ink container 82, and therefore, as shown in FIG. 10, the first engagement protrusion 164 and the first engagement protrusion receiving portion 150 have their engagement positions as rotation centers. O, the distance R from the rotation center O to the lowermost end of the porous body 138, the distance R2 to the lowermost edge of the ink supply port 162, the distance R3 to the lower end surface of the second engaging protrusion 166.
Distance R to the upper surface 147 of the bottom wall 86 of the head holder 80
4 is provided at a position where R1 <R2 <R3 <R4.

Therefore, when the ink container 82 is rotated from the position shown by the chain double-dashed line in FIG.
38 and the tapered portion 132 of the support cylinder 130 can project into the ink supply port 162 without interfering with the peripheral edge of the opening of the ink supply port 162. When the ink container 82 is rotated to a position near the mounting posture, the second engagement protrusion 166
Contacts the inclined inner surface 148 of the engaging recess 144, and the first engaging protrusion 164 is disengaged from the engagement with the first engaging protrusion receiving portion 150. After that, the second engagement projection 166 is guided by the inclined inner surface 148, and is slightly raised by the inclination of the inclined inner surface 148, while the bottom surface 169 of the ink container 82 approaches the bottom wall 86 of the head holder 80 and is positioned. The engagement engaging recess 178 and the positioning engagement protrusion 154 are fitted together.
Finally, the supported projection 180 is supported by the upper surface 147 of the bottom wall 86, and the upper surface 171 of the second engaging projection 166 is engaged by the engaging recess 1.
The upper inner surface 149 of 44 is contacted.

The reason why the head holder 80 supports the second engagement projection 166 at the end of the rotation of the ink container 82 is as follows. When the ink container 82 is attached to the head holder 80 by pivoting around the engagement portion between the first engagement protrusion 164 and the first engagement protrusion receiving portion 154, the ink container 82 is replaced by the second engagement protrusion. It is also possible not to support the head holder 80 at 166. In this case, the first engagement protrusion 164 and the first engagement protrusion receiving portion 154 are engaged until the end of the rotation of the ink container 82. Will continue to do. In this case, for example, as in the present embodiment, if the first engagement protrusion 164 is provided at the end portion on the side far from the bottom wall 86 of the ink container 82, the ink supply port of the ink container 82. 162 moves closer to the bottom wall 86 as the rotation for attachment to the head holder 80 progresses. At this time, the edge portion of the ink supply port 162 on the side far from the bottom wall 86 is unilaterally connected from the position separated from the connection portion 142.
Since it only approaches 42, there is no risk of interfering with the connecting portion 142, but the edge near the bottom wall 86 has the connecting portion 142.
From the position opposite to the bottom wall 86,
It is necessary to move beyond the free end of the connecting portion 142 to a position closer to the bottom wall 86 than the connecting portion 142, and there is a risk of interfering with the free end portion of the connecting portion 142. In order to avoid this interference, it is effective to move the positions of the first engagement protrusion and the first engagement protrusion receiving portion to the bottom wall 86 side. At the end of the period, the edge portion of the ink supply port 162 on the side far from the bottom wall 86 may interfere with the connecting portion 142. In order to solve this problem, most of the rotation for attaching the ink container 82 to the head holder 80 is centered on the engaging portion between the first engaging protrusion 164 and the first engaging protrusion receiving portion 150. The ink container 82 is rotated while being supported by the head holder 80 at the second engagement protrusion 166 at the end of the rotation.
The ink supply port 162 generally approaches the bottom wall 86 as the ink is rotated, but the amount of approach to the bottom wall 86 may be reduced or the ink supply port 162 may be actively separated from the bottom wall 86 at the final stage. It is effective.

Further, the inner surface of the engaging recess 144 with which the second engaging projection 166 is engaged, which is continuous with the upper surface 147 of the bottom wall 86 of the head holder 80, rises toward the rear side.
48, and since the dimension of the second engagement protrusion 166 in the direction perpendicular to the width direction of the head holder 80 and the ink ejection direction is constant, the second engagement protrusion 166 is provided.
The deeper the groove is fitted into the engaging recess 144, the smaller the gap in the direction perpendicular to the width direction of both head holders 80 and the ink ejecting direction becomes, and the second engaging protrusion 166 becomes the engaging recess 1.
The gap in the direction perpendicular to the width direction of both head holders 80 and the direction in which the ink is ejected can be made small or substantially zero when completely engaged with 44, and the ink container in the attached state. It is possible to favorably prevent the lifting of 82 from the head holder 80. When the second engagement protrusion 166 is fitted into the engagement recess 144 while rotating the ink container 82, when the second engagement protrusion 166 and the engagement recess 144 are started to be fitted to each other, the two are relatively moved. Since the head holders 80 are inclined, they cannot be fitted together unless the gap between the head holders 80 in the width direction and the direction perpendicular to the ink ejection direction is increased.
If the gap in the direction perpendicular to the width direction and the ink ejection direction is increased, it is impossible to prevent the ink container 82 from rising, but in the present embodiment, this inconvenience can be avoided.

When the ink container 82 is rotated,
The lower end of the rear portion of the ink container 82 engages with the inclined surface 60 of the ink container hook 56, and the arm portion 58 is bent rearward by the action of the inclined surface to get over the engaging protrusion 62. In a state where the ink container 82 is placed on the bottom wall 86 of the head holder 80, the engagement protrusion 62 engages with the engagement groove 174 of the ink container 82 as shown in FIG. 8
2 is prevented from rising from the bottom wall 82 by the arm portion 58.

While the ink container 82 is rotated and attached to the head holder 80 in this way, the ink container 82 is sandwiched by the pair of side walls 88 and is parallel to the rotation center line with respect to the head holder 80. Is fixed, the ink container 82 can be stably rotated, the ink supply port 162 and the connecting portion 142 are not displaced in the width direction, and the mounting work is easy, and The second engaging protrusion 166 can be easily and surely engaged with the engaging recess 1
44 can be fitted.

In the attached state of the ink container 82, as shown by the solid line in FIG. 9, the porous body 138 and the support cylinder 1 are provided.
30 is fitted into the ink container 82, the ink permeates the porous body 138, and is supplied to the ink flow path of the ejection head 78 through the ink passage 122. Further, the flare portion 136 is in close contact with the peripheral portion of the ink supply port 162 on the front surface 165 of the ink container 82, and ink leakage is prevented. The ink container 82 has the flare portion 1 on the front wall 160.
36, and the rear wall 170 contacts the front surface of the rear wall 38 of the carriage 32 to be positioned in the front-rear direction, and is urged rearward by the flare portion 136 so as to be always positioned in the front-rear direction. Be done.

In the state where the ink container 82 is attached to the head holder 80 in this way, the ink container 82 is supported by the supported projection 180 and the bottom wall 86 of the head holder 80.
The first engaging protrusion 164 is slightly lifted from the first engaging protrusion receiving portion 150 while being supported by the second engaging protrusion 166.
The contact between the upper surface 171 and the upper inner surface 149 of the engagement recess 144 and the engagement between the ink container hook 56 and the engagement groove 174 prevent the ink container 82 from rising from the bottom wall 86. Further, the positioning engaging protrusion 154
By the engagement of the positioning engagement recess 178 and the two side surfaces of the second engagement projection 166 parallel to the front-rear direction with the two opposing surfaces of the engagement recess 144. The movement of the holder in the moving direction is prevented. A protrusion 146 is provided rearward from the periphery of the opening of the engagement recess 144, whereby the engagement length of the guide protrusion 166 and the engagement recess 144 in the front-rear direction is long, and both are securely engaged. To be Further, the flare portion 1 of the support cylinder 130
The ink container 82 is brought into contact with the rear wall 38 of the carriage 32 by the bias of 36, and the movement in the front-rear direction is prevented. In this state, the ink supply port 162 and the connecting portion 1
42 are concentric with each other, and a vertical gap remains between the positioning engagement recess 178 and the positioning engagement projection 150.

When removing the ink container 82 from the head holder 80, the cover 184 is opened, and the ink container 82 is rotated such that the rear part thereof is separated from the head holder 80. When the ink container 82 is rotated, the rear end portion of the ink container 82 engages with the inclined surface 63 formed on the engaging protrusion 62 of the ink container hook 56, and the action of the inclined surface causes the ink container 82 to be used. The hook 56 is bent rearward so that the ink container 82 can be removed. After the rear portion of the ink container 82 has passed over the ink container hook 56, the ink container 82 is further rotated to separate the porous body 138 and the support cylinder 130 from the ink supply port 162.

If the head holder 80 is left with the ink container 82 removed, the porous body 138 is dried, but the mesh filter 126 can be prevented from being dried. If the porous body 138 is removed, the mesh filter 126
Is dried and the adhered ink is solidified to obstruct the ink flow, and the mesh filter 126 needs to be replaced together with the ejection head 78, which increases the replacement cost. Therefore, when the head holder 80 is left with the ink container 82 removed, the porous body 138 is left as it is, the porous body 138 is dried, and the ink soaked in the porous body 138 is dried. In that case, the porous body 138 is removed from the manifold section 120 together with the support cylinder 130,
The new porous body 138 held by the support cylinder 130 is replaced. Although the porous body 138 and the support cylinder 130 have to be replaced, the replacement cost can be reduced as compared with the case of replacing the ejection head 78.

Further, when the ink ejecting device 30 is moved in the recording area and recording is performed on the recording paper 28, the head holder 80 is displaced relative to the carriage 32 in the holder moving direction, the positional deviation in the front-rear direction, and the ink is lifted. The displacement of the container 82 relative to the head holder 80 in the holder movement direction, the front-back direction, and the floating are prevented as described above, and the recording position does not shift due to the displacement of the head holder 80. An image is accurately and sharply recorded on the recording paper 28 without causing any inconvenience such as displacement of the ink container 82 and ink leakage. Furthermore, the ink ejecting apparatus 30
It is possible to prevent the ink container 82 from moving relative to the head holder 80 when the movement of the carriage starts or stops and adversely affecting the control of the moving speed of the carriage 32.

Further, the ink container 82 is tilted with respect to the head holder 80 from the posture in which it is tilted with respect to the first engaging protrusion 16.
4 and the first engaging protrusion receiving portion 150 are rotated around the engaging portion between the first engaging protrusion receiving portion 150 and the first engaging protrusion receiving portion 150.
The inclination angle of the ink container 82 at the time of engaging with can be freely selected within a range in which the first engaging protrusion 164 and the first engaging protrusion receiving portion 150 can be engaged,
The degree of freedom in the mounting direction of the ink container 82 is high, the position of the opening of the cover 184 is not limited, and the ink ejecting apparatus 30 having a high degree of freedom in the design of the cover 184 can be obtained.

Further, since the ink container 82 is inclined with respect to the head holder 80 at the start of mounting, the rear wall 38 of the carriage 32 (the side opposite to the front wall 90 holding the connecting portion 142 of the head holder 80). Located in)
Includes an ink container hook 56 as a clamp device that clamps the ink container 82 to the head holder 80.
Is provided in a state of rising from the rear portion of the carriage 32, but the ink container 82 is rotated by the rotation around the engaging portion between the first engaging protrusion receiving portion 150 and the first engaging protrusion 164. Since it is attached to the holder 80, it does not interfere with the attachment of the ink container 82 to the head holder 80. The ink container 82 is connected to the ink supply port 16
When attaching to the head holder 80 from the rear of the head holder 80 in a posture in which the center line of 2 substantially coincides with the axis of the connecting portion 142 of the head holder 80, the clamp device is set to a clamp position for clamping the ink container 82. The head holder 8 of the ink container 82 is retracted from the clamp position.
It is necessary to move the head holder 80 to a retracted position that does not interfere with the mounting of the head holder 80, and the structure is complicated. However, when the head holder 80 is tilted and mounted on the head holder 80, the head holder 80 is connected. Even if the clamp device is provided on the side opposite to the side where the portion 142 is provided, it does not hinder the attachment of the ink container 82, so the clamp device has a simple structure like the ink container hook 56. It is possible. When the ink container 82 is rotated, the ink container hook 56 bends to allow the ink container 82 to be placed on the bottom wall 86, and at the same time when the ink container 82 is attached to the head holder 80. The ink container 82 is held by the carriage 32, and the ink container 82 can be easily attached.

Further, the first engagement protrusion 164 is provided on the front surface 165 of the front wall 160 of the ink container 82, and the width of the ink container 82 can be reduced.
The ink ejecting apparatus 30 can be downsized. Moreover, the first engaging protrusion is the connecting portion 142 of the ink container 82.
It is provided on the surface on the side that is connected to the ink container 82. However, since it is provided so as to project forward from the end of the head holder 80 on the side far from the bottom wall 86, the connection is made when the ink container 82 is tilted. Since the entire surface on the side connected to the portion 142 is separated from the front wall 90 of the head holder 80 and does not interfere with the front wall 90, it is not necessary to take measures for avoiding interference.

Further, the ink container 82 is attached to the head holder 8
0, the ink container 82 and the head holder 8
0 means two first engaging protrusions 16 separated in the width direction.
4 and the first engaging projection receiving portion 150, the ink container 80 does not tilt in the width direction, and the ink container 82 can be attached to and detached from the head holder 80 in a stable posture. it can.

Further, the second engagement protrusion 166 has a bottom surface 16
8 is located in the same plane as the bottom surface 169 of the ink container 82, the second engaging protrusion 1 is attached in the mounting posture.
The second engagement protrusion 1 is located at the position closest to the bottom surface 169 while avoiding that the 66 projects from the bottom surface 169 of the ink container 82.
66 can be provided and the second engagement protrusion 166 can be lengthened to ensure engagement with the engagement recess 144.
The second engagement protrusion 166 is supported by the upper surface 147 of the head holder 86 during the rotation of the ink container 82, so that the edge of the ink supply port 162 on the side far from the bottom wall 86 of the head holder 80 is formed. The second engaging protrusion 166 is effective in avoiding the interference between both the edge portion and the edge portion on the near side and the connecting portion 142.
If the bottom surface 168, which is the surface on the bottom wall 86 side of the ink container 82, is located in the same plane as the bottom surface 169, which is the surface on the bottom wall 86 side of the ink container 82, of the ink container 82. Since the length of the second engagement protrusion 166 suitable for avoiding the interference between the ink supply port 162 and the connecting portion 142 becomes long, the engagement length between the second engagement protrusion 166 and the engagement recess 144 is increased. Is increased and the engagement is ensured. In addition, the upper surface 147 of the bottom wall 86 can be used as a support guide surface that supports the second engagement protrusion 166.

Further, since two second engaging protrusions 166 are provided and engaged with the engaging recesses 144, respectively.
It is possible to more reliably avoid the interference between the ink supply port 162 and the connecting portion 142.

As is clear from the above description, in this embodiment, the front wall 90 of the head holder 80 is connected to the connecting portion 14.
2 and the bottom wall 86 extends in a direction intersecting the connection portion to form an ink container holder that holds the ink container, and the first engagement protrusion 164 is the first rotation protrusion. The engaging portion constitutes the engaging portion, and the first engaging projection receiving portion 150 constitutes the rotating second engaging portion. Further, the pair of side walls 88 allows the head holder 8 of the ink container 82 to rotate when the ink container 82 rotates.
A protrusion, which is a kind of a positioning portion that determines the position in a direction parallel to the rotation center line with respect to 0, is configured.

In the above embodiment, the ink container 82 is
When the positioning engaging recess 178 provided on the bottom surface 169 of the ink container 82 and the positioning engaging projection 154 protruding on the upper surface 147 of the bottom wall 86 of the head holder 80 are fitted, the holder is moved. Although the positional deviation in the direction is prevented, as in the ink container 430 shown in FIG. The bottom wall 438 is attached to the holder 436.
Even if the position shift in the holder movement direction is prevented by engaging the positioning engagement concave portion 442, which extends in the vertical direction and is opened in the front surface and the upper surface, with the engagement wall 440 rising from the rear edge. Good.

On the rear surface of the rear wall 432 of the ink container 430, an engaging groove 444 with which an ink container hook provided on the carriage is engaged with a lower middle portion in the holder moving direction.
Is formed, and a positioning engagement projection 434 is provided at a position adjacent to the engagement groove 444 so as to extend in the vertical direction. A pair of engaging protrusions 448 having engaging recesses 446 that engage with a pair of head holder hooks provided on the carriage are provided at the rear edge of the bottom wall 438 of the head holder 436. An engaging wall 440 is provided so as to project upward at a position adjacent to the engaging protrusion 448. Positioning engagement projection 434 and positioning engagement recess 44
6 is an ink container 430 using an ink container hook.
Holding, head holder 43 by hook for head holder
It is provided at a position where the holding of 6 is not hindered. Other configurations are the same as those of the embodiment shown in FIGS.
Description is omitted.

When the ink container 430 is rotated and attached to the head holder 436, as shown in FIG. 12, the positioning engaging projection 434 is fitted into and engaged with the positioning engaging recess 442. The groove for the ink container is engaged with the groove 444, and the ink container 430 is prevented from being displaced with respect to the head holder 436 in the holder moving direction and in the front-rear direction.

In each of the above embodiments, the ink container 8
In order to attach 2, 430 to the head holders 80, 436, first engaging protrusions 164 protruding forward are provided on the front surfaces of the ink containers 82, 430.
Although the first engagement projection receiving portion 150 was provided on the front wall 90 of 436, as shown in FIGS. 13 to 15, the shaft portions 462 are respectively attached from both side surfaces perpendicular to the holder movement direction of the ink container 460. A pair of side walls 466 of the head holder 464 are projected (only one is shown in FIGS. 13 and 14).
The shaft portion 462 may be supported by providing a bearing portion 468 opening on the upper surface at the upper end portion of the front portion of the.

In this embodiment, the ink container 460 is used.
However, as shown in FIG. 15, the shaft center of the shaft portion 462 received by the bearing portion 468 is rotated about the rotation center O, and the shaft portion 462 and the bearing portion 468 are rotated about the rotation center. A distance R1 from O to the lowermost end of the porous body 138,
The distance R2 to the lowermost edge of the ink supply port 162, the distance R3 to the lower surface of the second engagement protrusion 166, the head holder 464.
The distance R4 to the upper surface of the bottom wall 86 of R is R1 <R2 <R3
It is provided at a position of <R4. Other configurations are the same as those of the embodiment shown in FIGS. 1 to 10, and description thereof will be omitted.

Since the shaft portion 462 and the bearing portion 468 are provided at the positions as described above, when the ink container 460 is attached to the head holder 464, the ink container 4 is not attached.
The shaft portion 462 is supported by the bearing portion 468 in an inclined posture in which the front portion of the 60 is lower than the rear portion, and the ink container 460 is rotated in the direction in which the rear portion approaches the bottom wall 86 of the head holder 464. The particle body 138 and the support cylinder 130 are fitted into the ink supply port 162 without interfering with the peripheral edge of the opening of the ink supply port 162. When the ink container 460 is supported by the engagement of the second engaging projection 166 with the head holder 464, the shaft portion 462 is slightly lifted from the bearing portion 468, and the ink container 460 is the second engaging projection. 1
The engaging projection 470 and the engaging recess 14 that play the same role as 66.
6 is attached to the head holder 464 by being guided by the engagement with the inclined inner surface 148 of 6. The shaft portion 462 is the bearing portion 46.
When the ink container 460 is rotated, there is no risk of disengagement between the ink container 460 and the head holder 464 when the ink container 460 is rotated. The rotation operation of the container 460 can be easily performed. In the present embodiment, the shaft portion 462 constitutes the first rotation engaging portion, and the bearing portion 468 constitutes the second rotation engaging portion.

In each of the above embodiments, the ink container 8
2,430,460 and head holders 80,434,46
4 is provided with a first engagement protrusion 164, a shaft portion 462, a first engagement protrusion receiving portion 150, and a bearing portion 468, respectively, and the ink container is rotated about the engagement position thereof to rotate the head. Although it was supposed to be attached to the holder,
As shown in FIG. 20, guide protrusions 486 are provided on both sides of the lower surface of the front surface 484 of the ink container 480 in which the ink supply port 482 is provided, and guide protrusions 486 are provided to attach the ink container 480 to the head holder. It may be used as a guide when attaching to the 488.

As shown in FIG. 18, the bottom surface 490 of the pair of guide protrusions 486 is the bottom surface 49 of the ink container 480.
It is located in the same plane as 2. Ink container 4
In addition, 80 is provided with four hemispherical supported protrusions 494 on the bottom surface 492. Front wall 4 of head holder 488
On the lower part of the rear surface of 96, engaging recesses 500 are provided at positions on both sides of the connecting portion 498, respectively, and protruding parts 501 project rearward from the periphery of the openings of these engaging recesses 500. The inner surface of the engaging recess 500 that is continuous with the upper surface 504 of the bottom wall 502 of the head holder 488 is an inclined inner surface 506 that rises toward the rear side. The supported protrusion 49
The protrusion amount of 4, ie, the radius, is set to the amount by which the upper surface 508 of the guide protrusion 486 contacts the corresponding upper inner surface 510 of the engagement recess 500 when the supported protrusion 494 is supported by the upper surface 504. . In addition, on the upper portion of the rear surface of the front wall 496, on both sides with the connecting portion 498 interposed therebetween,
A stopper protrusion 512 is provided so as to project. Stopper protrusion 5
12 has a plate shape that is long in the holder movement direction. Other configurations are the same as those of the embodiment shown in FIGS. 1 to 10, and detailed description will be omitted.

The ink container 480 is attached to the head holder 488.
19, the cover 184 is opened as shown in FIG. 19, and the ink container 480 is inserted into the frame 12 in an inclined posture in which the front part is located below the rear part, and
86 is brought into contact with the upper surface 504 of the bottom wall 502 of the head holder 488. In this state, the ink container 480 is advanced, abutted on the stopper projection 512 as shown in FIG. 20, and then rotated in a direction in which the rear portion approaches the bottom wall 502.

When the ink container 480 is tilted so that the front part is located below the rear part, the ink container 480 is
If there is no guide protrusion 486 protruding from the front face 484 of the
The inclination lowers the position of the ink supply port 482, and the upper edge portion of the ink supply port 482 interferes with the support cylinder 130 and the porous body 138 forming the connecting portion 498. However, if there is a guide protrusion 486 and it is supported on the upper surface 504, the structure shown in FIG.
As shown in FIG. 9 by the broken line showing the positional relationship between the ink supply port 482 and the support cylinder 130, the position of the ink supply port 498 rises and interference with the support cylinder 130 and the porous body 138 can be avoided. By providing the guide protrusion 486, when the ink container 82 is tilted, the upper edge portion of the ink supply port 482 is provided at the support cylinder 1.
30 and the distance to the support cylinder 130 increases, while the lower edge portion of the ink supply port 482 is
The distance to 0 becomes smaller. However, in the tilted posture,
The lower edge of the ink supply port 482 is located on the side of the tapered portion 132, which is the tip of the support cylinder 130, and originally the support cylinder 13 is provided.
Since the distance from 0 is large, even if the position of the lower edge of the ink supply port 482 is increased by tilting the ink container 82, it does not interfere with the support cylinder 130.

The ink container 480 is provided with the stopper protrusion 512.
When the ink supply port 482 is rotated toward the bottom wall 502 after coming into contact with the ink cartridge and approaches the mounting posture, the position of the ink supply port 482 is lowered, and the distance between the upper edge portion of the ink supply port 482 and the support cylinder 130 is shortened. However, after the guide protrusion 486 is engaged with the inclined inner surface 506 of the engagement recess 500, the ink container 480 is lifted by being guided by the inclined inner surface 506, and the ink container 480 is finally attached to the head holder 488. Similar to the case where the ink supply port 482 is inserted horizontally from the rear part, the ink supply port 482 and the connection part 498 are fitted with each other with their axes substantially aligned. The ink container 480 is supported by the upper surface 504 of the bottom wall 502 at the supported protrusion 494. In this state, the upper surface 508 of the guide protrusion 486 contacts the upper inner surface 510 of the engagement recess 500, and the ink container 480 is Lifting from the head holder 488 is prevented.

If the inclination angle is the same, the longer the guide protrusion is, the larger the amount of rise of the ink supply port is. Ink container 48
When attaching 0 to the head holder 488, it is convenient to bring the rear portion into contact with the upper surface of the rear wall 38 of the carriage 32 to determine the inclination angle of the ink container 480, as shown in FIG. To contact the upper surface of 38,
With the guide protrusion 486 in contact with the upper surface 508,
The length of the guide protrusion 486 is set such that the ink supply port 482 has a size that allows the ink supply port 482 to rise so as not to interfere with the porous body 138 and the support cylinder 130.

Further, the guide protrusion 486 has the ink container 48.
It is made to project from the front of 0 to the front, and the enlargement of the ink ejecting apparatus is avoided. This is because the ejection head 78 is provided on the front surface of the front wall 90 of the head holder 488 and the dimension of the head holder 488 in the front-rear direction does not become long even if the guide protrusion 486 is provided in a protruding manner.

Furthermore, in this embodiment, the ink container 4
By rotating 80 from the tilted posture and attaching it to the head holder 488, the degree of freedom in designing the cover 184 and the effect of simplifying the configuration of the clamp device can be obtained.
The engagement between the guide protrusion 486 and the engagement recess 500 prevents the ink container 480 from rising and prevents ink leakage, and may adversely affect the control of the moving speed when the ink ejecting apparatus moves. 1 to 1
0 is the same as the embodiment shown in FIG. Further, the guide protrusion 486
Is the ink supply port 16 on the front surface 484 of the ink container 480.
Two pieces are provided protruding from both sides of 2, and
The bottom surface is located in the same plane as the bottom surface of the ink container 480, and even if the ink container is tilted, the posture is stable and the mounting operation can be easily performed. Further, in the mounting posture, the guide protrusion 486 is prevented from protruding from the bottom surface of the ink container 480, and the head holder 4 is moved most.
The guide protrusion 48 is provided at a position on the upper surface 504 side of the bottom wall 502 of 88.
6 can be provided, the guide protrusion 486 can be lengthened to ensure a sufficient engagement length with the engagement recess 500, and the upper surface 504 serves as a support guide surface for guiding the guide protrusion 486. You can

When the guide protrusion 486 is brought into contact with the upper surface 504 of the bottom wall 502, the ink container 480 is positioned in the width direction with respect to the head holder 488 by the pair of side walls 88, and the ink container 480 is attached. At some time, the ink supply port 162 and the connecting portion 498 do not shift in the width direction, which facilitates the mounting work. The pair of side walls 88 form a positioning portion, and the inner surfaces of the side walls facing each other form a positioning surface that is substantially perpendicular to the upper surface 504 that forms a support guide surface that supports the guide protrusion 486. When the ink container 480 is attached to the head holder 488, the guide protrusion 48 is first engaged.
8 and the upper surface 504, if the positioning surface is provided adjacent to the upper surface 504, the guide protrusion 486 is formed on the upper surface 50.
When the ink container 480 is supported on the head holder 488, the ink container 480 is inevitably positioned in the width direction with respect to the head holder 488. After that, the ink container 480 is simply moved in parallel and rotated to be attached to the head holder 488. It can be done reliably, which is convenient. Further, since the guide protrusion 486 and the upper surface 504 continue to be engaged even when the ink container 488 is rotated,
The same positioning surface can be made to function as a positioning means for both parallel movement and rotation of the ink container 480.

As is clear from the above description, in this embodiment, the front wall 496 of the head holder 488 constitutes the head holding portion for holding the jet head 78, and
A connecting portion holding portion that holds the connecting portion 142 is configured, and the bottom wall 5
Reference numeral 02 constitutes a container holding portion extending from the head holding portion in the intersecting direction.

In the above-described embodiment, the guide protrusion 486 is provided such that the bottom surface 490 is located in the same plane as the bottom surface 492 of the ink container 480. However, as in the guide protrusion 520 shown in FIG. You may provide in the intermediate part of the up-down direction of the container 522. The guide protrusion 520 is protruded forward from a vertical intermediate position of both side surfaces of the ink container 522 at right angles to the holder movement direction, beyond the front surface 524 of the ink container 522. On the bottom surface of the ink container 522, four supported protrusions 526 having a hemispherical shape are provided.

The head holder 530 is provided with guide plates 534 parallel to the front-rear direction at the front portions of the inner surfaces of the two side walls 532 that are perpendicular to the holder movement direction.
The upper surface of the element forms a support guide surface 536 that supports the guide protrusion 520. The support guide surface 536 is formed by the ink container 52.
The two rotation axes are provided at positions that match the axis of the connecting portion 542. Engagement concave portions 544 are formed on both sides of the front wall 540 of the head holder 530 with the connecting portion 542 interposed therebetween, which are separated in the holder moving direction. The lower inner surface of the engaging recess 544 is an inclined inner surface 546 that is continuous with the support guide surface 536 and inclines upward toward the rear side. Further, on the rear surface of the front wall 540, stopper projections 548 are provided at two positions on both sides of the connecting portion 542, which are separated from each other in the holder moving direction.

Head holder 530 of ink container 522
When attached to the ink container 522, the ink container 522 is in an inclined posture in which the front portion is located below the rear portion, and the tip end portion of the guide protrusion 520 is brought into contact with the support guide surface 536. In this posture, the ink container 522 is advanced until it comes into contact with the stopper protrusion 548, but at this time, the porous body 138 and the support cylinder 130 do not interfere with the opening peripheral portion of the ink supply port 162, and the ink supply port 162. The position and shape of the lower surface of the guide protrusion 520 are determined so as to be fitted into. The support guide surface 536 of the guide plate 534 is formed at a height (the height is a distance from the bottom wall 550 of the head holder 530) where the rotation axis of the ink container 522 matches the axis of the connecting portion 542. Even when the ink container 522 is tilted, the position of the upper edge of the ink supply port 162 is lowered, but the amount of decrease is such that the guide protrusion 486 is provided at the lower end of the ink container 480. Since the size is smaller than that in the embodiment shown in FIGS. Therefore, the ink container 522 of the guide protrusion 520 is
Although the amount of protrusion from the front surface 524 may be reduced actually, the guide protrusion 520 is engaged with the engagement recess 544 to prevent the ink container 522 from rising from the head holder 530. When it is not desirable to shorten the portion 520, the lower surface of the tip portion of the guide protrusion 520 is shaped so as not to contact the support guide surface 536.

Further, the support guide surface 536 of the guide plate 534.
However, the rotation axis of the ink container 522 is the ink supply port 16
When the ink container 522 is tilted, the position of the upper edge portion of the ink supply port 162 does not lower when the ink container 522 is tilted.
0 does not need to be projected from the front surface 524 of the ink container 522. Therefore, as shown in FIG. 22 later, the shaft-like projections projecting laterally from the front end portions of the two side surfaces perpendicular to the holder movement direction of the ink container are used as guide projections that are supported and guided by the support guide surface. Is also possible.

As described above, the ink container 522 is advanced until it comes into contact with the stopper projection 548, and then is rotated so as to approach the bottom wall 550 of the head holder 530. At this time, the position of the upper edge of the ink supply port 162 lowers, but when the guide protrusion 520 engages with the inclined inner surface 546 of the engaging recess 544, it is guided and lifted by the inclined inner surface 546, and the ink is stored. The container 522 is attached to the head holder 530 in a posture in which the axes of the ink supply port 162 and the connecting portion 142 are substantially aligned with each other, as in the case of being horizontally inserted into the head holder 530 from the rear side. The ink container 522 has a bottom wall 550 at the supported protrusion 526.
Of the guide protrusion 520 while being supported on the upper surface 552 of the
The upper surface of the ink container 522 is brought into contact with the inner surface of the upper side of the engaging recess 544 to prevent the ink container 522 from floating.

As described above, the front wall 540 forming the head holding portion and the connecting portion holding portion of the head holder 530 and the bottom wall 550 forming the ink container holding portion are orthogonal to each other, and the guide protrusion 520 is the bottom wall. If the ink container 522 is tilted, if it is provided at a position that substantially coincides with the center of the ink supply port 162 in the direction perpendicular to 550, the ink supply port 162 can be positioned on the side closer to the edge of the ink supply port 162 farther from the front wall 540. Both of the edges approach the connecting portion 542, and the connecting portion 542
The gap between the ink supply port 162 and the ink supply port 162 is reduced by setting the inclination angle so that a gap can be secured between both edges and the connection portion 542 even in this state. The ink container 522 can be attached to the head holder 530 without interfering with the portion 542.

2 perpendicular to the moving direction of the holder of the ink container
FIG. 22 shows an example in which a shaft-like projection is laterally projected from the front end portion of the side surface to form a guide projection. A shaft-shaped projection 564 protruding laterally is provided at each of front ends of two side surfaces 562 of the ink container 560 which are perpendicular to the holder movement direction. Each of these shaft-shaped projections 564 is provided so that its axis is located at the same height as the upper edge of the ink supply port 566. In addition, engaging projections 568 are provided so as to project forward on both sides of the ink container 560, with the lower ink supply port 566 in between, and the upper ink supply port 56.
Stopper protrusions 569 are provided on both sides with 6 in between. Further, four supported protrusions 570 are provided on the bottom surface of the ink container 560.

The front end portions of the pair of side walls 574 of the head holder 572 are notched in parallel with each other in the front-rear direction and extend in parallel with the front-rear direction to form a horizontal support guide surface 576. The support guide surfaces 574 are formed at a height lower than the axis of the axial protrusion 564 by the radius of the axial protrusion 564. The support guide surface 574 is formed so that the axis of the shaft-shaped projection 564 is at the same height as the upper edge of the ink supply port 566. Head holder 57
Engagement recesses 584 are formed on both sides of the lower connecting portion 580 of the rear surface 582 of the second front wall 578, respectively. The bottom wall 5 of the head holder 572 of the engaging recess 584
A lower inner surface continuous with the upper surface 588 of 86 is an inclined inner surface 590 that inclines upward toward the front.

Head holder 572 of ink container 560
When the ink container 560 is mounted on the support guide surface 576, the ink container 560 is placed in an inclined posture in which the front part is located lower than the rear part, and the shaft-shaped projection 564 is placed on the support guide surface 576. The 569 is advanced until it abuts the rear surface 582 of the front wall 578 of the head holder 572, and then is rotated and placed on the head holder 572. Since the support guide surface 576 is provided so that the axis of the shaft-shaped projection 564 is at the same height as the upper edge of the ink supply port 566, it is porous when the ink container 560 is advanced and rotated. The body 138 and the support cylinder 130 are fitted into the ink supply port 566 without interfering with the peripheral edge of the opening of the ink supply port 566. When the engaging protrusion 568 enters the engaging recess 584 and contacts the inclined inner surface 590, the axial protrusion 564 is disengaged from the support guide surface 576, and thereafter, the engaging protrusion 568 is guided by the inclined inner surface 590. Is
The ink container 560 is moved slightly upward while being moved by the inclination of the inclined inner surface 590, and is placed on the upper surface 588 of the bottom wall 586. The ink container 560 is placed on the upper surface 588 of the supported projection 570, the engaging projection 568 is fitted in the engaging recess 584, and the upper surface of the engaging projection 568 and the upper inner surface of the engaging recess 584 are provided. Are engaged with each other, which prevents the ink container 560 from rising from the head holder 572.

In the embodiment shown in FIG. 22, a vertical surface rising vertically from the front edge of the support guide surface 576 is used as a stopper surface, and the shaft-shaped projection 564 is engaged with the stopper surface to mount the ink container 560. You may stop the advance of. The guide protrusion is brought into contact with the end of the support guide surface to define the movement limit. Further, the stopper protrusion 569 is omitted, and the bottom wall 5 on the front surface of the ink container 560 is omitted.
The portion farther from 86 is the front wall 57 of the head holder 572.
8 may be brought into contact with the rear surface 582 of the ink container 560 to stop the advance of the ink container 560, or the ink container 56.
The front of 0 may be brought into contact with the flange portion 136 of the connecting portion 580 to stop the forward movement.

In addition, in addition, in each of the embodiments shown in FIGS. 1 to 10, 11 and 12, and 13 to 15, the head holders 80, 436 and 464 are constituted by the front wall 90, and the connecting portion 142. The head holder has a connecting portion holding portion that holds the ink holding portion 82 and a connecting portion holding portion that holds the ink holding portion 82 that extends at a right angle from the connecting portion holding portion. The portion and the container holding portion may intersect at an angle other than a right angle, that is, an acute angle or an obtuse angle. The present invention can also be applied to an ink ejecting apparatus in which the connecting portion holding portion also serves as the container holding portion. For example, in an ink ejecting apparatus that ejects ink downward, an ejecting head is provided, and a connecting portion holding portion that holds the connecting portion in an upward protruding direction holds the ink container in a posture that extends in the vertical direction. . Even when the connecting part holding part also serves as the container holding part, the ink container is attached to the head holder by being rotated from an inclined posture.
You may provide the 1st engaging part for rotation, and the 2nd engaging part for rotation.

Further, in each of the embodiments shown in FIGS. 1 to 10, 11, 12, and 13 to 15, the second engagement protrusion 166 and the engagement protrusion 470 are the ink containers 82, 430, respectively. Although it is supposed to project forward from the front face of 460, it projects parallel to the ink ejecting direction of the ink container and laterally projects from two side faces adjacent to the surface of the head holder on the container holding portion side and forward. It may be protruding. In addition, at the end of the rotation around the engagement portion between the first rotation engaging portion and the second rotation engaging portion of the ink container, the head holder is attached to the second engagement protrusion (or the engagement protrusion) at the end of the rotation. When rotated while being supported by, the surface of the container holding portion on the ink container side may serve as a support guide surface that supports the second engaging protrusion (or the engaging protrusion), or the connecting of the container holding portion. You may provide a support guide surface in the side wall projected in the both edge parts of the direction parallel to the axis of a part.

When the ink container 82 is attached to the head holder 80 in the embodiment shown in FIGS. 1 to 10, the ink container 82 is perpendicular to the head holder 80 as shown by the chain double-dashed line in FIG. It is not essential to have the posture, and the first engaging protrusion 164 and the first engaging protrusion receiving portion 1
It suffices that the cover 184 be in an inclined posture in which 50 is engaged.
May be provided at a position where the opening is formed according to the setting of the inclination angle. The degree of freedom in designing the cover is high.

Further, FIGS. 1 to 10, 11 and 1
2, in each of the embodiments shown in FIGS. 13 to 15, the ink containers 82, 430, 460 are attached to the head holders 80, 43.
Ink container 82, 43 when attached to 6, 464.
The positioning of the 0, 460 with respect to the head holders 80, 436, 464 in the direction parallel to the rotation center line is performed by the pair of side walls 88, 466 of the head holders 80, 436, 464. In addition, for example, the pair of first engaging projection receiving portions 150 are provided with recesses that open to the upper surface and the rear surface, respectively, and the first engaging projections 16 are provided in the recesses.
4 may be fitted and the ink container 82 may be positioned by a projection formed by a pair of side walls that define a recess, or the pair of first engaging projection receiving portions 150 may be respectively attached to the upper surface, the rear surface and the ink. The ink container 82 may be positioned by forming notches that open on the surfaces that are parallel to the ejection direction and that face each other, and the protrusions that define the notches. Conversely, a recess or notch may be formed in the first engagement protrusion 164 to form a protrusion that engages with the first engagement protrusion receiver 150 and position the ink container 82. When the ink container 82 is attached to the head holder 80, the first engaging protrusion 164 and the first engaging protrusion receiving portion 150 are first engaged with each other. If the positioning portion is provided, the ink container 82 is inevitably positioned in the width direction with respect to the head holder 80 by engaging them, and thereafter, the ink container 82 is simply rotated. It is convenient that the head holder can be attached. Further, since the first engaging protrusion 164 and the first engaging protrusion receiving portion 150 hardly move relative to each other even when the ink container 82 is rotated, the purpose can be achieved by the small positioning portion. In this way, when the protrusion is provided on the first engaging protrusion or the first engaging protrusion receiving portion to perform the positioning in the direction parallel to the rotation center line of the ink container with respect to the head holder, the head holder has no side wall. As long as it has sufficient strength, the pair of side walls can be omitted or made small, and the structure of the head holder can be made simple and lightweight.

In addition, in each of the embodiments shown in FIGS. 16 to 20, 21 and 22, the ink containers 480, 522 and 5 are used.
When the 60 is attached to the head holders 488, 530, 572, the positions of the ink containers 480, 522, 560 in the width direction are the head holders 488, 530, 572.
Was determined by the pair of side walls 88, 532, and 574, but short ribs that rise from both edges parallel to the front-rear direction of the head holder are provided to determine the position of the ink container in the width direction. Good. Side wall 8
8, 532, 574 are head holders 488, 530,
572 has a height that rises upward from the bottom walls 502, 550, 588 of the 572 and reaches the top of the ink containers 480, 522, 560.
The head holders 488, 530, 572 function as positioning means for positioning the 60 in the width direction.
The head holder also has a pair of short ribs to attach the ink container if the head holder has sufficient strength without the pair of side walls. It can be used as a positioning means at the time. Since the guide protrusion 486 and the upper surface 504 hardly move relative to each other when the ink container 480 is rotated, the purpose can be achieved with a small positioning surface. Also,
It is not essential that the positioning means is provided so as to project on the container holding portion formed by the bottom wall of the head holder. It may have a positioning surface substantially perpendicular to the surface.

In each of the embodiments shown in FIGS. 16 to 20, 21, and 22, the ink holding units 480, 522, 522 are changed from the head holding portion (front wall 496, 540, 578) holding the ejection head 78. Although the container holder for holding 560 is extended at a right angle, the container holder may intersect with the head holder at an angle other than a right angle, that is, at an acute angle or an obtuse angle.

Further, as in the embodiments shown in FIGS. 16 to 20, 21, and 22, the ink container and the head holder are guided by the guide protrusions to the support guide surface, and the ink container is moved. When the head holder is moved to the limit and rotated to be attached to the head holder, the gap between the ink supply port and the joint is relatively large even if the joint has a long shape and is not tapered. Even if the edge of the ink container close to the container holding part formed by the bottom wall of the head holder of the ink supply port approaches the connecting part, the ink supply port and the connecting part are The ink container can be attached to the head holder without any interference. Further, when the connecting portion is short, even if the ink container is tilted, the peripheral portion of the ink supply port near the container holding portion does not interfere with the connecting portion. If the ink container is rotated to a position near the mounting position, the edge of the ink supply port on the side closer to the container holding portion approaches the connecting part. The ink container can be attached to the head holder without tilting, and the ink supply port and the connecting portion do not interfere with each other in a posture close to that of the head holder.

Further, in each of the above embodiments, the inclined inner surface 1
48, 506, 546, and 590 were planes,
It may be a curved surface such as a partially cylindrical surface. Further, a portion of the surface of the connecting portion holding portion forming the head holder on the ink container side, which is continuous with the inclined inner surface of the engaging recess may be an inclined surface which becomes higher as it becomes closer to the engaging recess. On the contrary, only a part of the inner surface of the engagement recess may be an inclined surface that becomes higher toward the back.

Further, when the inner surface of the engagement recess of the head holder, which is continuous with the surface of the container holding portion on the ink container side, is an inclined inner surface which rises toward the rear side, the second engagement protrusion and the engagement protrusion are formed. Alternatively, after the guide protrusion comes into contact with the inclined inner surface, the position of the second engagement protrusion of the support guide surface, the engagement protrusion, or the portion supporting the guide protrusion is accommodated as the ink container is rotated to the mounting posture. Move away from the container holder. By combining this change in position and the change in the positions of the edge of the ink supply port farther from the container holding portion and the edge closer to the ink supply port with the decrease in the inclination angle of the front surface of the ink container, ink supply is performed. It is also possible to avoid interference between the mouth and the connection. By doing so, the supported projections protruding from the surface supported by the head holder of the ink container are not provided at least on the side close to the front surface of the ink container, and the second engagement protrusion This is particularly effective when the projection or the guide projection is supported by the surface of the engagement recess that is continuous with the surface of the container holding portion on the ink container side, but it can also be used in combination with the supported projection. .

The protrusion amount of the supported protrusion is the same as in each of the above-described embodiments when the second engagement protrusion, the engagement protrusion, or the guide protrusion is on the front side of the ink container close to the container holder of the head holder. When it is projected forward from the end of the and is fitted into the engaging recess,
The second engagement projection, the engagement projection, or the guide projection is close to the inner surface of the engagement recess that is far from the container holding portion, with the supported projection being supported by the surface of the container holding portion on the ink container side. However, it is also possible to set the ink container so that it is substantially prevented from being separated from the container holding portion, or the ink container is slightly bent to cause the second engagement protrusion, the engagement protrusion or the guide protrusion. Can be elastically pressed against the inner surface of the engagement recess on the side remote from the container holding portion.

Furthermore, it is not essential to provide a supported projection on the bottom surface of the ink container so that it is supported by the upper surface of the bottom wall of the head holder, and the supported projection is omitted, and the bottom surface of the ink container is directly attached to the head holder. It may be supported on the upper surface of the bottom wall. Further, the second engagement protrusion 166, the engagement protrusion 470, and the second engagement protrusion 166 are provided on the front surface of the ink container having no supported protrusion.
568 or second protrusions similar to the guide protrusions 486, 520, engagement protrusions or guide protrusions (hereinafter, referred to as second engagement protrusions) are provided, and the second engagement protrusions and the second engagement protrusions. The engaging projection and the like are engaged with each other to form an engaging recess accurately, the second engaging projection and the like are fitted into the engaging recess, and the upper surface of the second engaging projection and the upper inner surface of the engaging recess are formed. In contact with
It is also possible to prevent the displacement of the ink container in the vertical direction by preventing the lower surface of the second engagement projection or the like from coming into contact with the lower inner surface of the engagement recess. In this case, the positioning engagement projection 154 of FIG. 5 may be brought into contact with the bottom surface of the positioning engagement recess 178 to support the rear portion of the ink container 82.

Further, the inner dimension of the engaging recess into which the second engaging protrusion, the engaging protrusion and the guide protrusion are fitted in the direction perpendicular to the width direction of the head holder and the ink ejecting direction is The surface of the container holding portion on the side opposite to the surface on the ink container side may be inclined so that it becomes smaller toward the back side.

Further, in the above embodiment, the head holder is attached to and detached from the carriage, but the present invention can also be applied to an ink ejecting apparatus in which the head holder is provided integrally with the carriage. . In this ink ejecting apparatus, the carriage constitutes a part of the head holder in the claims.

Further, the head holder may be provided with a clamp device for clamping the ink container to the head holder.

In the embodiment shown in FIGS. 1 to 10, the first engaging protrusion 164 and the first engaging protrusion receiving portion 150 are provided in pairs, respectively, but in the width direction of the front wall of the front wall of the ink container. A protrusion extending in the width direction may be provided at the center of the first engaging protrusion. Further, a protrusion extending in the width direction may be provided as a first engagement protrusion receiving portion at the center portion of the rear surface of the front wall of the head holder in the width direction. The number of the first engaging projections and the first engaging projection receiving portions may be one, or a plurality of each may be provided, or one of the engaging projection and the engaging projection receiving portion may be provided, and the other may be provided. It is also possible to provide a plurality of them. Similarly, when at least one of the first engaging protrusion and the first engaging protrusion receiving portion is provided, the protruding portion is formed on one of the first engaging protrusion and the positioning portion to form a positioning portion, and At the time of mounting, the ink container can be positioned with respect to the head holder in a direction parallel to the rotation center line. In each of the embodiments shown in FIGS. 16 to 20, 21 and 22, the ink containers 480, 522 and 5 are used.
A pair of stopper protrusions 51 for stopping the forward movement of 60.
2, 548 and 569 may also be one protrusion extending in the width direction of the head holder.

The present invention can also be applied to a thermal ink ejecting apparatus in which air in ink is heated by a heating element provided in the ink flow path to eject ink. Furthermore, the present invention can be applied to an ink ejecting apparatus and an ink ejecting apparatus cartridge in which the ink ejecting direction is not the horizontal direction but the tilting direction is the vertical direction. Further, the present invention can be implemented in a mode in which the combination of the constituent elements of each of the above-described embodiments is changed. Besides, the present invention can be implemented in various modified and improved modes based on the knowledge of those skilled in the art without departing from the scope of the claims.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing an ink jet recording apparatus provided with an ink ejecting apparatus that is an embodiment common to each of the first to third aspects of the invention.

FIG. 2 is a side sectional view showing a state in which the ink ejecting apparatus of the inkjet recording apparatus is mounted on a carriage.

FIG. 3 is a side cross-sectional view of a state where the ink ejecting apparatus of the ink jet recording apparatus is mounted on the carriage, which is cut along a cutting plane different from that in FIG.

FIG. 4 is a rear view showing the ink ejecting apparatus.

FIG. 5 is an exploded perspective view showing an ink container and a head holder of the ink ejecting apparatus.

FIG. 6 is a perspective view showing the head holder by disassembling a connecting portion.

FIG. 7 is a perspective view showing a state of the ink container viewed from the front side.

FIG. 8 is a perspective view showing a state of the ink container viewed from the bottom side.

FIG. 9 is a diagram illustrating how the ink container is attached to the head holder.

FIG. 10 is a diagram for explaining setting of the positions of the first engagement protrusion and the first engagement protrusion receiving portion provided on the ink container and the head holder, respectively.

FIG. 11 is a perspective view showing another example of the first engagement protrusion and the first engagement recess for preventing the displacement of the ink container and the head holder in the holder movement direction.

12 is a front cross-sectional view showing a state in which the positioning engagement projections and the positioning engagement recesses as the first engagement projections and the first engagement recesses shown in FIG. 11 are fitted.

FIG. 13 is a perspective view showing another example of a first rotation engaging portion and a second rotation engaging portion that constitute a rotation center when the ink container is attached to the head holder.

FIG. 14 is a perspective view showing a state where the ink container shown in FIG. 13 is viewed from the front side.

FIG. 15 is a diagram illustrating installation positions of a shaft portion and a bearing portion as the first rotation engaging portion and the second rotation engaging portion shown in FIG. 13;

FIG. 16 is a perspective view showing an example in which an ink container and a head holder are attached by engaging a guide protrusion provided on the ink container and a head holder.

FIG. 17 is a perspective view showing the ink container shown in FIG. 16.

FIG. 18 is a side sectional view showing a state in which the ink container shown in FIG. 16 is attached to the head holder.

FIG. 19 is a diagram illustrating how the ink container shown in FIG. 16 is attached to the head holder.

20 is a diagram showing another state of attachment of the ink container shown in FIG. 16 to the head holder.

FIG. 21 is a perspective view showing an example in which the attachment of the ink container to the head holder is guided by the engagement of the guide protrusion provided on the side surface of the ink container and the guide plate provided on the head holder.

FIG. 22 is a perspective view showing an example in which the attachment of the head holder of the ink container is guided by the engagement of the shaft-shaped protrusion provided on the side surface of the ink container and the support guide surface provided on the head holder.

[Explanation of symbols]

 30 ink ejection device 78 ejection head 80 head holder 82 ink container 102 ink ejection surface 120 manifold part 122 ink passage 126 mesh filter 130 support cylinder 132 taper part 134 flange part 136 flare part 138 porous body 142 connection part 162 ink supply Mouth 430 Ink container 436 Head holder 460 Ink container 464 Head holder 480 Ink container 482 Ink supply port 488 Head holder 522 Ink container 530 Head holder 560 Ink container 566 Ink supply port 572 Head holder

Claims (3)

[Claims] 1. An ink container for accommodating ink, having an ink supply port on a front surface, an ejection head for ejecting ink supplied from the ink container, and a connecting portion connected to the ink supply port. An ink ejecting apparatus, comprising: a connecting part holding part that holds the connecting part; and a container holding part that detachably holds the ink container, and a head holder that holds the ejecting head. And a manifold part projecting from the connecting part holding part of the head holder to the ink container side and having an ink passage opening to a projecting end face, and an opening end of the ink passage of the manifold part. A fixed mesh filter, a support tube that is tubular and is detachably fitted to the outside of the manifold section, and the mesh that is retained at the tip of the support tube. The ink jet apparatus characterized in that shall include a porous body covering the filter. 2. The support cylinder further protrudes from a protruding end surface of the manifold portion in a state of being fitted in the manifold portion, and the porous body is fitted in the protruding portion. Item 2. The ink ejecting apparatus according to Item 1. 3. The support cylinder has an elastically deformable seal portion which is in close contact with the peripheral edge portion of the opening of the ink supply port and prevents ink leakage.
The ink jetting device according to item 1.