This application claims priority based on Japanese Patent Application Serial No. 2016-234266 filed on December 1 Application No. 2016-208865 filed on October 25, 2016 and 2016, their all disclosures are incorporated herein by reference.
Technical field
[0002]
　The present invention relates to an ink container capable of containing ink, and a printer provided with an ink container.
BACKGROUND
[0003]
　Conventionally, the ink supplied from the can accommodate ink container an ink, an inkjet type printer for printing on a medium by ejecting from an ink jet head. Further, in this ink container is an ink cartridge detachably attached to a printer (e.g., see JP 2008-183836).
[0004]
　The ink cartridge, the ink is replenished to that of the used ink is consumed, and reusable. More specifically, the ink cartridge includes an ink inlet hole and the air vent hole is formed. The ink injection needles ink bottle containing ink for supply comprises a (ink injection flow path portion) and an air vent nozzle, by being inserted into each of the ink inlet hole and the air vent hole, via the ink injection needle Ink There had been replenished.
Summary of the Invention
Problems that the Invention is to Solve
[0005]
　Meanwhile, divided ink passage for flowing ink (ink channel) and the air passage deflate when performing amount corresponding gas-liquid exchange venting air inflow ink, air-liquid exchange in the ink passage by the thick ink passage it is performed, and sometimes inflow of the ink becomes unstable.
[0006]
　However, hollow needle-shaped ink injection needle to form a thin ink passage, it is difficult to manufacture integral with the ink bottle and an ink cartridge.
　Note that, these challenges are not limited to printer ink refill ink cartridge and an ink cartridge is detachably mounted in the printer with a refillable ink container and ink container an ink, which generally common It has become.
[0007]
　The present invention has been made in view of these circumstances, and its object is ink container of an elongated ink injection path portion capable air-liquid exchange can be easily manufactured, to provide a printer having an ink container is there.
Means for Solving the Problems
[0008]
　Hereinafter referred to as the means and effects in order to solve the above problems.
　Ink container for solving the above-mentioned problems, the opening and capable of accommodating ink chamber to the ink supply to the ink jet head, in the interior of the first end portion that opens to the outside of the ink chamber wherein the ink accommodating chamber connecting the second end, and an ink injection flow path portion capable injecting the ink into the ink chamber, at least a portion of the ink injection flow path portion, a groove defined by the flow path wall are formed is sealed with a film attached to the channel wall.
[0009]
　According to this configuration, at least a part of ink injection flow path section, since the grooves are formed is sealed with a film, by defining the depth and width of the grooves, the ink injection flow path section thickness It can be defined to. Therefore, an elongated ink injection flow path unit capable air-liquid exchange can be easily manufactured.
[0010]
　In the ink container, the ink injection flow path portion preferably has a plurality of ink flow passage for connecting the second end and the first end portion.
　According to this arrangement, since the ink injection flow path portion has a plurality of ink flow paths, at least one of the ink flow path can be a flow channel for discharging the air. Therefore, it is possible to separate the ink flow path for flowing the ink in the ink chamber, and a flow path for discharging air from the ink chamber, the ink can be stably replenished to the ink chamber.
[0011]
　In the ink container, at least one ink channel of the plurality of ink flow path includes a first flow path part, and a larger second channel part cross-sectional area than the first flow path portion it is preferable.
[0012]
　For example, when flowing a ink in the ink chamber, and pressure ink presses the air in a plurality of ink flow paths, sometimes the pressure air pushes the ink is balanced. Then, the ink remains in these ink flow path, there is the ink does not flow into the ink storage chamber. That respect, according to this configuration, at least one ink passage, since the cross-sectional area has a smaller first flow path part, and a cross-sectional area larger second flow passage portion, the pressure of the air and the ink it is possible to break the equilibrium. Therefore, a plurality of ink flow paths can be easily divided into a flow passage to flow the channel and the ink which air is discharged.
[0013]
　In the ink container, said second end of said plurality of ink flow path is preferably located in the same height in the ink chamber.
　According to this configuration, since the height of the second ends of the plurality of ink flow paths are equal, it can be easily manufactured ink injection flow path portion as compared with the case where the height of the second end are different.
[0014]
　In the ink container, the second end side of the ink injection flow path unit, the located in the upper space of the ink chamber, the ceiling walls defining the ink storage chamber formed projecting downward it is preferable to have.
[0015]
　Ink chamber, the ink is accumulated in the lower, upper is the space of air. Therefore, according to this configuration, by causing the second end to protrude the ink injection flow path portion from the top wall is located in the upper space of the ink chamber, the ink chamber through an ink injection flow path unit air the can be easily discharged.
[0016]
　The ink container has a top wall and side walls defining the ink chamber, said side wall extending in a direction intersecting with the top wall, is erected in the vertical direction in the use state, the ink from an outside having said ink viewable visible face of the chamber, the viewing surface, the upper limit display section that indicates the measure of the upper limit of the replenishing amount of the ink is provided, the ink injection flow path portion, said second end it is preferred that part is positioned at a position corresponding to the upper display portion in the vertical direction.
[0017]
　According to this configuration, when ink is supplied to the ink chamber, the liquid surface of ink stored in the ink chamber by the inflow ink is increased. When the liquid level reaches the upper limit display section, closed second end of the ink injection flow path portion by the ink, air will not enter the ink injection flow path portion from the second end. Therefore, the replenishment of ink to the ink chamber, can be stopped at a position corresponding to the upper limit display section.
[0018]
　The ink container includes a buffer chamber provided along the ink injection flow path portion, and a communicating portion for communicating with the ink storage chamber and the buffer chamber, preferably further comprising a.
[0019]
　According to this configuration, the buffer chamber because it provided along the ink injection flow path unit, the ink injection flow path portion can be reinforced by the buffer chamber. Therefore, it is possible to reduce the possibility that the ink injection flow path portion from being damaged.
[0020]
　The ink container, the buffer chamber further comprising a atmosphere communicating portion for communicating to the atmosphere, in the use state of the ink container, the communicating portion, the ink accommodating chamber in a position above the second end it is preferred that communicates with.
[0021]
　For example, if the ink chamber is sealed, the air expands pushing the liquid surface of the ink under the influence of a temperature change, there is a fear that extruding the ink from the ink accommodating chamber. In this respect, according to this configuration, the buffer chamber is communicated with atmosphere by the atmosphere communicating portion, the communicating portion opening upward position than the second end, is an ink storage chamber and the buffer chamber are communicated. Therefore, even if the ink up to the height of the second end portion is accommodated in the ink chamber, thereby reducing the risk that the ink will be pushed out of the ink chamber.
[0022]
　The ink container is in the used state of the ink container, the space above the second end portion of the ink accommodating chamber, in a first space above the second upper space by said ink injection flow path portion it is divided, preferably further comprises a communication passage for providing communication between said first upper space and the second upper space.
[0023]
　According to this configuration, even when the upper space in the ink chamber is divided into a first upper space and a second space above the ink injection flow path portion, the first upper space communicating with the communication passage and the second upper it is possible to communicate with the space in the buffer chamber.
[0024]
　The ink container is in the used state of the ink container, the volume of the second end the space above in the ink accommodating chamber is preferably larger than the volume of the ink injection flow path unit.
[0025]
　If the ink bottle containing ink for supply connected to the ink injection flow path unit to inject ink into the ink accommodating chamber, the second end a second end of the ink injection flow path portion is closed by the ink If not enter the air from the inflow of the ink into the ink chamber from the ink bottle is stopped. When disconnecting the ink bottle and an ink injection flow path unit, the ink remaining in the ink injection passage portion takes the atmospheric pressure, it flows into the ink chamber. In this respect, according to this configuration, the volume of the space above the ink chamber is larger than the volume of the ink injection flow path portion, even if the ink remaining in the ink injection flow path portion flows into the ink chamber , it is possible to reduce the possibility that the ink in the buffer chamber flows.
[0026]
　In the ink container, the buffer chamber, the recess for one surface is opened buffer, it is preferably formed is sealed by the film.
　According to this configuration, by sealing a buffer recess and the groove in the film, it is possible to form the buffer chamber and the ink injection flow path portion can be easily manufactured ink container.
[0027]
　In the ink container, the film includes a first film forming part of the ink injection flow path portion to seal the portion of the groove, the ink injection seals the portion of said groove and a second film for forming the second end of the flow path portion, wherein the ink storage chamber, one surface opened accommodation chamber recess is sealed by the second film formation it is preferable to have been.
[0028]
　According to this configuration, a housing chamber recesses and grooves by sealing with a second film can be formed and a second end portion of the ink chamber and the ink injection flow path unit. Therefore, it is possible to easily manufacture the ink container.
[0029]
　The ink container is in the used state of the ink container, and located at a position lower than the first end portion, for storing the ink flowing down on the outside of the ink injection flow path portion from the first end further comprising a reservoir, wherein the reservoir includes a top wall defining the ink chamber, erected upward from the top panel wall, a reservoir wall portion of the side is opened, the side of the 該貯 Tomekabe and the film sealing the opening facing is defined by, it is preferable that opens upward.
[0030]
　According to this arrangement, it is possible to store the leakage fallen ink on the outside of the ink injection flow path section into the storage section, it can be reduced the risk that ink spreads around the ink container. Then, such reservoir, by utilizing a film for sealing the ink injection flow path portion can be easily formed.
[0031]
　Printer includes an ink container having the above-described configuration, and the ink jet head for ejecting the ink, a casing for housing and said ink jet head and the ink container, provided in the housing to solve the above problems an operation panel, wherein the operation panel has a display unit, wherein the ink container is disposed so as to at least partly located at the same height as the operation panel, the ink injection flow path portion in injection state of injecting ink into the ink accommodating chamber through said first end of said ink injection flow path portion is positioned higher than the display unit.
[0032]
　According to this arrangement, since the first end is positioned higher than the display unit, compared to the case where the display unit and the first end is positioned below the same height or the first end portion is a display portion, ink can easily an injection operation for injecting the ink injection flow path portion from the first end.
[0033]
　The ink container is further comprising a buffer chamber provided an ink storage chamber in the middle of the air communicating passage that communicates with the atmosphere, said buffer chamber, and the air channel of the ink accommodating chamber side and the buffer chamber it is preferable that the connection port having walls guiding the ink toward the center of the buffer chamber.
[0034]
　According to this configuration, when the ink flows into the buffer chamber, the ink is guided toward the center of the buffer chamber. Therefore, it is possible to keep the ink in the buffer chamber to reduce the possibility that the ink through the atmosphere communication path from leaking to the outside, can be reduced the risk that the periphery of the ink container is soiled with ink.
BRIEF DESCRIPTION OF THE DRAWINGS
[0035]
[1] a perspective view of a multifunction machine having a printer of the first embodiment.
[2] a perspective view of the MFP illustrating a state of supplying ink to the ink container.
[Figure 3] a front view of a multifunction device (not shown) of the housing of the tank unit.
[Figure 4] a perspective view of the first ink container from the right side.
[5] a perspective view of the first ink container from the left side.
[6] a right side view of the first ink container.
[7] a left side view of the first ink container.
[8] a plan view of the first ink container.
[9] 9-9 cross-sectional view taken along line in FIG.
[10] 10-10 cross-sectional view taken along line in FIG.
[11] a perspective view of the second ink container from the right side.
[12] a perspective view of the second ink container from the left side.
[13] a right side view of the second ink container.
[14] a left side view of the second ink container.
[15] a front view of an ink container comprising the printer of the second embodiment.
[16] a left side view of the first ink container.
[17] a left side view of the second ink container.
[18] a right side view of the first ink container.
[19] a right side view of the second ink container.
[20] a perspective view of the first ink container from the left side.
[21] a perspective view of the second ink container from the left side.
[22] a perspective view of the first ink container from the right side.
[23] a perspective view of the second ink container from the right side.
[24] a partial side view of the ink container body posture is changed.
[25] a left side view of the ink container modification.
[26] a right side view of the ink container modification.
[27] a perspective view of an ink container of a modification from the left side.
[Figure 28] schematic diagram of a rear view and the ink jet head of the ink container modification.
[29] a perspective view of an ink container of a modification from the right side.
[30] a perspective view of the multifunction apparatus of modification.
DESCRIPTION OF THE INVENTION
[0036]
　(First Embodiment)
　Hereinafter, a first embodiment of the printer will be described with reference to the accompanying drawings. Incidentally, the printer of the present embodiment prints (records) text or images on a medium by ejecting ink to a medium such as paper.
[0037]
　As shown in FIG. 1, the MFP 11 includes a printer 12, is disposed in the printer 12 on an image reading device 13 for covering the upper side of the printer 12 has a substantially rectangular parallelepiped shape as a whole.
[0038]
　In this embodiment, the anti-gravity direction both say upward, the gravity direction of downward. Then, in FIG. 1, the multifunction device 11 is the direction along the upward and downward direction and the vertical direction Z as being placed on a horizontal plane, illustrating the direction along the horizontal plane width direction X and the depth direction Y. That is, the width direction X, the depth direction Y, and the vertical direction Z are mutually crossing (preferably orthogonal) to. Further, one end side of the front side or the front side in the depth direction Y, refers to the opposite other end and the back side or rear side to the one end, one end side in the width direction X as seen from the front side right, the other end there is also the fact that the left side.
[0039]
　On the front side of the printer 12, an operation unit 15 such as a button for performing various operations of the multifunction device 11, a display unit 16 for displaying the information of the printer 12 and multifunction device 11, an operation panel 17 having a It is provided. Furthermore, on the right side of the operation panel 17, at least one housing body unit 19 for accommodating the ink container 18 (five in this embodiment) (see FIG. 3) is provided. Ink container 18 is provided in the printer 12 of the housing 20, the housing 20, a window portion 21 of at least 1 so as to correspond to the respective ink accommodating body 18 (five in this embodiment) is formed It is.
[0040]
　In addition, the housing 20, the medium supply having a printing unit 23 for printing by applying ink to the (not shown), such as a tube for supplying the ink contained in the ink container 18 to the printing section 23 a Department 24, are provided. Printing unit 23 includes an ink jet head 25 that ejects ink from nozzles (not shown), a carriage 26 reciprocally movable along the ink jet head 25 holds the width direction X (scanning direction), the there. The print unit 23 prints on a medium by ejecting ink toward the medium from the ink jet head 25 to be moved.
[0041]
　Thus, the housing 20, the operation panel 17 is provided, the housing 20, the ink container 18, the supply unit 24, the ink jet head 25, and carriage 26 is accommodated. The supply unit 24 of this embodiment is corresponding individually to the ink container 18 is provided with a plurality of, in FIG. 1 illustrates only one for simplicity in FIG.
[0042]
　2, the image reading device 13 is attached via a rotating mechanism 28 such as a hinge provided on the rear side. The image reading apparatus 13 is openable and closable relative to the printer 12, to pivot between a closed position shown in FIG. 1, and an open position shown in FIG. When positioning the image reading apparatus 13 in the open position, the cap 30 attached is opened and closed to cover 29 and the ink container 18 of the container unit 19 (see FIG. 3). When replenishing the ink in the ink container 18, as shown in FIG. 2, the image reading apparatus 13, a cover 29, and to position the cap 30 in the open position, the ink bottle 31 which ink accommodating the replenishment ink connected to the housing body 18.
[0043]
　Next, structure for mounting the ink container 18 to the printer 12, and the arrangement of the ink container 18 will be described.
　As shown in FIG. 3, the housing body unit 19 includes a mounting portion 33 mountable to the ink container 18. The mounting portion 33, the amount that can accommodate inks different first ink container 18A and the second ink container 18B is mounted side by side in the width direction X. Each ink container 18, different kinds respectively (e.g., cyan, magenta, yellow, and colors such as black, colorants such as pigments and dyes) of ink are accommodated.
[0044]
　In the present embodiment, storage capacity is large first ink container 18A for black are provided one on the operation panel 17 side, the second ink container 18B for color less storage capacity than the first ink container 18A There has been provided with four. The structure of the second ink container 18B which is plurality is the same, components common also in the first ink container 18A and the second ink container 18B omit duplicated description by the same reference numerals to.
[0045]
　As shown in FIGS. 3 and 4, the ink container 18 includes a claw portion 34 which engages with the mounting portion 33, an engagement portion 36 which the mounting screw 35 is screwed, is formed. Further, the mounting portion 33, the mounting screws 35 engaging portion 37 is formed for locking (only one in Fig. 3 shown).
[0046]
　As shown in FIG. 3, the ink container 18 is in a state of engaging the pawl portions 34 on the mounting portion 33, mounting screw 35 is screwed to the threaded portion 36 while being engaged with the engaging portion 37 It is secured to the mounting portion 33 by. Thus the ink container 18 is arranged so as to at least partly located at the same height as the operation panel 17.
[0047]
　Ink container 18, by being fixed to the mounting portion 33, the printer 12 into a usable use, and the ink bottle 31 is connected via the ink injection flow path portion 39 which ink is injected ink chamber the injection state of injecting ink into 40. In this injection state, the first end portion 39a of the ink injection flow path unit 39 is located above the operating section 15 and a display unit 16.
[0048]
　Next, the configuration of the first ink container 18A.
　4, as shown in FIG. 5, the first ink container 18A has an ink storage chamber 40 capable of accommodating ink supplied to the ink jet head 25, at least one provided above the ink chamber 40 ( in the present embodiment and a buffer chamber 41a ~ 41c of the three). Further, the first ink container 18A is in the use state of the first ink container 18A, located in a position lower than the first end portion 39a of the ink injection flow path portion 39, the ink injected from the first end portion 39a and a reservoir 42 for storing the run down of ink on the outside of the flow path portion 39.
[0049]
　The first buffer chamber 41a and the second buffer chamber 41b (in the present embodiment each side) on at least one side of the ink injection flow path portion 39 in the depth direction Y in, is provided along the ink injection flow path section 39. Further, the ink injection flow path 39 connects the second end portion 39b which opens into the first end portion 39a and the ink storage chamber 40 which is open to the outside of the ink chamber 40, the ink chamber 40 ink can be injected.
[0050]
　The first ink container 18A has one face a buffer recess 43 of at least one (right side) is opened (three in this embodiment), one surface recess accommodating chamber (left side) is opened 44, and a container case 45 having a. Then, the buffer chambers 41a ~ 41c are formed is sealed by the first film 46a buffer recess 43 is an example of a film. Furthermore, the ink chamber 40 is formed is sealed with a second film 46b is accommodating chamber recess 44 which is an example of a film.
[0051]
　Reservoir 42 has a top wall 47 which defines the ink chamber 40, is erected from the top wall 47 upwardly, and the reservoir wall 48a ~ 48c a portion of the lateral (left) is opened, the reservoir walls 48a ~ a second film 46b for sealing the opening facing the side of the 48c (the left), is defined by, and is formed so as to open upward. That is, the reservoir walls 48a ~ 48c is configured first reservoir wall 48a located in front, the second storage wall 48b located to the right, the third reservoir wall 48c positioned behind. The third reservoir wall 48c is partitioning the reservoir 42 and the first buffer chamber 41a.
[0052]
　Next, a description will be given buffer chambers 41a ~ 41c.
　4, as shown in FIG. 6, the first ink container 18A has a first buffer chamber 41a provided on the front side of the ink injection flow path portion 39, provided on the rear side of the ink injection flow path portion 39 and a second buffer chamber 41b and the third buffer chamber 41c. Further, the first ink container 18A has a third buffer chamber 41c equipped with air communication part 50 that communicates with the atmosphere.
[0053]
　6 and 7, the first ink container 18A is provided with a communicating portion 51 for communicating the upper end of the lower end and the ink accommodating chamber 40 of the first buffer chamber 41a, communicate with each other buffer chambers 41a ~ 41c and a, a connecting portion 52a ~ 52c to connect to. Communicating portion 51 in the used state of the first ink container 18A, it communicates with the ink chamber 40 at a position above the second end 39b of the ink injection flow path section 39.
[0054]
　The first connecting portion 52a is connected to the first buffer chamber 41a and a second buffer chamber 41b. The second connecting portion 52b connects the second buffer chamber 41b and a third buffer chamber 41c. The third connection portion 52c is formed in a narrow tortuous snake road shape, and connects the third buffer chamber 41c and the atmosphere communicating portion 50.
[0055]
　Specifically, the first connecting portion 52a has a first through-hole 53a which is formed above the communicating portion 51 in the lower portion of the first buffer chamber 41a, formed at the lower end portion of the second buffer chamber 41b connecting the second through-hole 53b. The second connecting portion 52b includes a third through-hole 53c formed in the upper side of the second through-hole 53b in the lower portion of the second buffer chamber 41b, the formed at the lower end portion of the third buffer chamber 41c 4 connecting the through hole 53d.
[0056]
　The through-holes 53a ~ 53d are formed to penetrate the left wall 54 defining the buffer chamber 41a ~ 41c. The first connecting portion 52a and the second connecting portion 52b is provided on the outer surface (left surface) of the left wall 54, a groove which is open towards the left, a second film 46b for sealing the groove, by It is formed. The third connecting portion 52c includes a groove that opens toward the right side, is formed by a first film 46a for sealing the groove.
[0057]
　Therefore, the ink chamber 40, the communicating portion 51, the first buffer chamber 41a, the first connecting portion 52a, a second buffer chamber 41b, the second connecting portion 52 b, the third buffer chamber 41c, through the third connecting portion 52c It communicates with the atmosphere communicating portion 50.
[0058]
　It will be described the ink chamber 40.
　As shown in FIGS. 5 and 7, the first ink container 18A is a top wall 47 that defines an ink storage chamber 40, a bottom wall 56 facing the top wall 47 in the vertical direction Z, a top wall 47 and bottom wall 56 before crossing the wall 57, a rear wall 58, and a right wall 59. Then, the side wall of the ink chamber 40 is constituted by a front wall 57, rear wall 58, right wall 59. That is, the side wall is provided so as to extend in a direction intersecting the top wall 47 is erected in the vertical direction Z in the use state. By a top wall 47 of the ink chamber 40, an ink storage chamber 40 and the buffer chamber 41a ~ 41c are partitioned. Further, a portion front wall 57 of the right wall 59 are formed by stretching above the ink chamber 40, the upper portion being a first reservoir wall 48a and the second reservoir wall 48b than the top wall 47 ing.
[0059]
　Figure 4 As shown in, the storage body case 45 constituting a first ink container 18A is made of transparent or translucent resin, visible liquid level of ink stored in the ink chamber 40 from the outside it is. Then, before the wall 57 (an example of a side wall), a region corresponding to the window portion 21 of the housing 20 (see FIG. 1), the function of the ink in the ink chamber 40 from outside as the viewing surface 61 visible there. The viewing surface 61, a lower display portion 62 showing a criterion for replenishing the ink in the ink chamber 40, and the upper display unit 63 indicating the measure of the upper limit of the amount of supply ink. Incidentally, the viewing surface 61 is in the used state of the first ink container 18A, are provided along the vertical direction Z. The reservoir 42 is in the depth direction Y and vertical direction Z, is positioned between the viewing surface 61 and the first end portion 39a of the ink injection flow path section 39.
[0060]
　The upper limit display section 63 may not be provided on the first ink container 18A. For example, the housing 20 of the printer 12, to form a viewing surface 61 facing the window portion 21 as a wall which transmits light through a transparent or semitransparent member, the upper display unit 63 may be provided in the window portion 21. It is also possible to prevent an upper limit display section 63. That is, since the automatic ink injection when injected ink during ink injection to the second end portion 39b is stopped, the ink can be injected without confirmed upper display unit 63.
[0061]
　As shown in FIGS. 5 and 7, the top wall 47, the supply unit 24 ink outlet portion 65 (see FIG. 1) is connected ink it is derived is provided. Further, the bottom wall 56, in the depth direction Y, are inclined to the front wall 57 side is higher. In the bottom wall 56, the wall 58 of the side position after the lower sloped side is recessed filter mounting portion 66 is formed. The first ink container 18A is provided with an ink outlet path 67 to be connected to the ink outlet portion 65 through a filter (not shown) of the filter mounting portion 66. The filter attachment portion 66 is provided to be filtered, for example, thermal welding. Then, ink contained in the ink chamber 40, via the ink is consumed in the ink jet head 25, ink outlet passage 67 through the filter of the filter mounting portion 66, ink outlet portion 65, and the supply portion 24 It is supplied to the printing section 23 and.
[0062]
　In the ink chamber 40, a position below the ink injection flow path portion 39, longitudinal ribs 68 of at least one (one in this embodiment) is formed. Vertical ribs 68 are formed with a gap and a top wall 47 and bottom wall 56 in the vertical direction Z. Further, in the depth direction Y, a position between the vertical ribs 68 and the ink outlet section 65, at least one intersecting the bottom wall 56, the cross ribs 69a ~ 69c of (three in this embodiment) It is provided. Intersecting ribs 69a ~ 69c are protruded from the bottom wall 56 upward at a distance from one another in the depth direction Y. Further, cross ribs 69a ~ 69c are provided so as to extend along the width direction X.
[0063]
　Intersecting ribs 69a ~ 69c are different from each other protruding height from the bottom wall 56 upward. That is, of the cross ribs 69a ~ 69c, the largest projecting height of the first cross-rib section 69a located at the ink outlet section 65 side. Moreover, the projecting height of the second cross-rib section 69b is larger than the protruding height of the third intersecting rib portion 69c. Narrow In other words, the distance between the second intersection rib portion 69b and the top wall 47, wider than the distance between the first intersection rib portion 69a and the top wall 47, than the distance between the third intersecting rib portion 69c and the top wall 47 .
[0064]
　Further, the front and rear sides of the longitudinal ribs 68, as the front side of the cross ribs 69a ~ 69c, the width in the depth direction Y is gradually wider toward the right wall 59 side from the opening side of the accommodation chamber recess 44 extending portion 70 having a substantially right-angled triangular shape in a top view is formed perpendicular to the right wall 59.
[0065]
　Width in the width direction X and the vertical rib portion 68 intersecting ribs 69a ~ 69c is substantially equal to the width of the housing chamber recesses 44. Therefore, when the second film 46b in the accommodation chamber recess 44 is bonded, the second film 46b also vertical ribs 68 and the bonding surface which is a left end of the cross ribs 69a ~ 69c are bonded. The lower end of each intersection rib portion 69a ~ 69c are formed recessed toward the right wall 59 side from the adhesive surface. Therefore, when the second film 46b is bonded to cross ribs 69a ~ 69c, indentation formed part of the cross-rib portions 69a ~ 69c is communicating regions on both sides of the crossing ribs 69a ~ 69c in the depth direction Y.
[0066]
　Further, on both sides of the position of the longitudinal ribs 68 in the depth direction Y is first protrusion 71a that protrudes from the bottom wall 56 upward is formed. Further, at a position between the vertical ribs 68 and the ink outlet section 65, the second projecting portion 71b projecting from the top wall 47 downward it is formed. The first protruding portion 71a and the second protrusion 71b is substantially perpendicular triangular in front view so as to gradually width in the vertical direction Z toward the opening side of the accommodation chamber recess 44 from the right wall 59 (left) is narrowed It has a shape.
[0067]
　It will now be described ink injection flow path section 39.
　As shown in FIG. 7, the second end 39b side of the ink injection flow path unit 39 is located in the upper space of the ink storage chamber 40, protrudes downward from the top wall 47 which partitions the ink chamber 40 It is. That is, in the use state of the first ink container 18A, the first end portion 39a of the ink injection flow path unit 39 (in the present embodiment vertically upward) above the second end portion 39b located. Then, it positions the first end portion 39a above the top wall 47, a second end 39b is positioned below the top wall 47. Further, the upper space of the ink storage chamber 40, an upper space than the center of the ink chamber 40, the upper end of the vertical ribs 68, the upper end of the first cross-rib section 69a, of the lower end of the second protrusion 71b among them, than at least one is upper space.
[0068]
　Ink injection flow path unit 39 has a cylindrical portion 73 provided along the vertical direction Z, at least connecting the first end portion 39a and a second end 39b which is the tip of the cylindrical portion 73 (upper end) one (in this embodiment a plurality) has a first ink flow path 74a and the second ink channel 74b of. Incidentally, the cylindrical portion 73 is provided so as to protrude upward from the upper surface 75 of the first ink container 18A intersecting the third reservoir wall 48c.
[0069]
　The second end 39b of the first ink flow passage 74a and the second ink channel 74b is located equal height in the ink chamber 40. Then, the ink injection flow path unit 39 is located at a position where the second end portion 39b corresponds to the upper limit display section 63 in the vertical direction Z. Specifically, the second end portion 39b has the same height as the upper limit display section 63 in the vertical direction Z, or located near the upper display unit 63.
[0070]
　As shown in FIG. 8, the cylindrical tubular portion 73, in a central position in the depth direction Y, it is provided first channel wall 76a along the width direction X and the vertical direction Z. The first ink flow passage 74a and the second ink channel 74b is substantially the same cross-sectional area in the horizontal direction in the cylindrical portion 73.
[0071]
　6 and 7, the first flow path wall 76a which partitions the first ink flow passage 74a and the second ink channel 74b is continuous from the first end portion 39a to the second end 39b It is provided. Further, on both sides of the position of the first flow path wall 76a in the depth direction Y is a second flow path wall 76b partitioning the first buffer chamber 41a and the ink injection flow path portion 39, the second buffer chamber 41b and the ink a third channel wall 76c partitioning the injection channel portion 39 is provided. That is, by the present embodiment, a pair of channel walls (first passage wall 76a and the second channel wall 76 b, a first flow path wall 76a and the third flow path wall 76c), a groove 77 extending from the cylindrical portion 73 There has been defined. Further, in this embodiment, two grooves 77 along the vertical direction Z are arranged in the depth direction Y.
[0072]
　At least a part of ink injection flow path 39, a flow path wall 76a ~ 76c, is constituted by a first film 46a and a second film 46b attached to the passage wall 76a ~ 76c, a groove 77 first film It is formed by sealing at 46a and a second film 46b. Specifically, the grooves 77 are respectively open to both sides in the width direction X, the first film 46a is one groove 77 is a portion formed between the first buffer chamber 41a and the second buffer chamber 41b by sealing the parts, forming part of the ink injection flow path section 39. The second film 46b, by sealing the part of the groove 77 is a portion formed in the accommodating chamber recess 44, a part of ink injection flow path portion 39 and the second end 39b Form.
[0073]
　As shown in FIG. 7, in the use state of the first ink container 18A, the space above the second end 39b of the ink chamber 40 includes a first upper space 78a of the front by the ink injection flow path portion 39 It is divided into a second upper space 78b of the rear side. That is, in the ink chamber 40, a first upper space 78a and the second upper space 78b is provided to sandwich the ink injection flow path section 39.
[0074]
　As shown in FIG. 6, FIG. 7, the first ink container 18A is provided with a communication passage 79 which communicates with the first upper space 78a and a second upper space 78b. That is, the communication passage 79, a groove with communicating the first communication hole 80a and the second communication hole 80b which is formed to penetrate the right wall 59 of the ink chamber 40, opened toward the right, It is formed by a first film 46a for sealing the groove. The first communication hole 80a is open to the first upper space 78a of the communicating section 51 is opened, the second communication hole 80b is opposite to the first upper space 78a to sandwich the ink injection flow path portion 39 It opens to the second upper space 78b located.
[0075]
　Incidentally, in the usage state of the first ink container 18A, the volume of the space above the second end 39b of the ink chamber 40 is greater than the volume of the ink injection flow path section 39. That is, the sum of the volume of the first upper space 78a and the second upper space 78b is greater than the sum of the volume of the first ink flow passage 74a and the second ink channel 74b.
[0076]
　As shown in FIG. 9, the second ink channel 74b includes a first channel portion 81a, and a sectional area horizontal than the first flow path portion 81a is larger second passage portion 81b. That is, among the plurality of ink flow paths, at least one ink passage comprises a first passage portion 81a and a second flow path part 81b. In the present embodiment, unlike the depth of the groove 77 of the first flow path portion 81a and the second flow path part 81b, the groove depth 77 of the second flow path portion 81b, the groove 77 of the first channel part 81a of deeper than the depth. Further, in the vertical direction Z, the first flow path portion 81a, rather than the second channel portion 81b located above, the length of the first flow path portion 81a is longer than the length of the second channel portion 81b .
[0077]
　As shown in FIG. 6, the upper end of the second channel portion 81b is located above the reservoir walls 48a ~ 48c, located above the air communicating portion 50 and the ink outlet section 65. Further, the upper end of the second channel portion 81b is communicating portion 51, the first connecting portion 52a, the second connecting portions 52 b, located above the through holes 53a ~ 53d, below the upper end of the buffer chambers 41a ~ 41c located in.
[0078]
　9, as shown in FIG. 10, the first ink flow passage 74a, out of the groove 77 is sealed by the first film 46a, the first flow path portion 81a and the second flow path of the second ink channel 74b It has the same depth of the part corresponding to the part 81b. Then, the first ink flow passage 74a, the cross-sectional area in the horizontal direction is the same portion as the horizontal sectional area of ​​the first flow path portion 81a in the second ink channel 74b is the first channel part 81a . In other words, in the second ink channel 74b, the horizontal cross-sectional area at the same position in the vertical direction Z is, portions different from the first ink flow passage 74a is a second flow path portion 81b.
[0079]
　Incidentally, FIG. 9, as shown in FIG. 10, the first ink flow passage 74a, the second ink channel 74b, (the side to be connected to the cylindrical portion 73) also above the first flow path portion 81a, the ink receiving unit sectional area horizontal as 82 is formed larger than the first channel part 81a. The bottom surface of the ink receiving portion 82 is formed to be inclined downward, and easily draw ink into the first flow path portion 81a that follows.
[0080]
　The following describes the second ink container 18B.
　11, as shown in FIG. 12, the second ink container 18B is at least one connection and the buffer chamber 41a ~ 41i of (nine in this embodiment), each buffer chambers 41a ~ 41i and the atmosphere communicating portion 50 It includes a connecting portion 52a ~ 52 g of the. The first buffer chamber 41a ~ fourth buffer chamber 41d, and the seventh buffer chamber 41 g, ninth buffer chamber 41i, the buffer recess 43 which opens toward the right side is sealed by the first film 46a formed It is. The fifth buffer chamber 41e, a sixth buffer chamber 41f, eighth buffer chamber 41h, the buffer recess 43 which opens towards the left are formed is sealed with a second film 46b. Also, the atmosphere communicating portion 50 is a position above the top wall 47, is formed on the upper side of the third buffer chamber 41c.
[0081]
　The third connecting part 52c is connected to the third buffer chamber 41c and the fourth buffer chamber 41d. The fourth connecting portion 52d is connected to the fourth buffer chamber 41d and a fifth buffer chamber 41e. Fifth connection portion 52e is connected to the fifth buffer chamber 41e and a sixth buffer chamber 41f. Sixth connection portion 52f is connected to the sixth buffer chamber 41f and the seventh buffer chamber 41 g. Seventh connection portion 52g connects the ninth buffer chamber 41i and the atmosphere communicating portion 50.
[0082]
　13, as shown in FIG. 14, the left wall 54, the third through-hole 53c ~ 10th through hole 53j is formed. Specifically, the second buffer chamber 41b, the third through-hole 53c is formed, the third buffer chamber 41c, a fourth through hole 53d and the fifth through hole 53e is formed, a fourth buffer chamber 41d the sixth through hole 53f is formed. Further, the fifth buffer chamber 41e, a seventh through hole 53g is formed, the sixth buffer chamber 41f, eighth through hole 53h is formed. A seventh buffer chamber 41g and the ninth buffer chamber 41i, the eighth buffer chamber 41h is provided at a left wall 54, and a ninth through hole 53i formed in the seventh buffer chamber 41g, the ninth buffer 10 through holes 53j formed in the chamber 41i is also open to the eighth buffer chamber 41h. Further, in the eighth buffer chamber 41h, the gas together with transmitting the ink liquid separation membrane which does not transmit (not shown) is provided.
[0083]
　The first connecting portion 52a, the fourth connection portion 52 d, the sixth connecting portion 52f, seventh connection portion 52g includes a groove that opens toward the right, a first film 46a for sealing the groove, it is formed by ing. The second connecting portion 52 b, a third connecting portion 52c, the fifth connecting portion 52e is formed a groove which opens toward the left, a second film 46b for sealing the groove, by.
[0084]
　Further, the lower end of the partition wall 83 for partitioning the second buffer chamber 41b and a third buffer chamber 41c, cutout portions 84 are formed. That is, in the state in which the first film 46a is adhered to the partition wall 83, the second buffer chamber 41b and the third buffer chamber 41c includes a second connecting portion 52b formed on the left wall 54 side, forming the partition walls 83 communicating the notch 84.
[0085]
　Next, the configuration of the ink containing chamber 40 in the second ink container 18B. 12, as shown in FIG. 14, the communication passage 79 for communicating the first upper space 78a of the ink chamber 40 and the second upper space 78b has an upper end and the upper end of the second upper space 78b of the first upper space 78a connect the door, is groove open toward the left side are formed is sealed with a second film 46b.
[0086]
　Next, the ink bottle 31 is connected to the ink injection flow path portion 39, the ink contained in the ink bottle 31 will be described operation when replenishing the ink chamber 40. Incidentally, the action in the case of replenishing the ink in the first ink container 18A and the second ink container 18B is the same.
[0087]
　As shown in FIG. 6, when connecting the ink bottle 31 to the cylindrical portion 73 serving as a first end portion 39a side of the ink injection flow path portion 39, ink is the first ink flow passage 74a and second ink flow paths 74b It flows as drops toward the ink chamber 40 side. The air in the ink chamber 40, the pressure rises pushed by the ink.
[0088]
　Ink flowing through the first ink flow passage 74a flows into the ink chamber 40. Meanwhile, ink flowing through the second ink channel 74b is in the middle position of the second ink channel 74b, is pushed by the air pressure in the ink chamber 40 drops stops. Then, the ink in the second ink channel 74b is the air pressure in the ink chamber 40 ink is flowed, is pushed back into the ink bottle 31. For example, ink flowing through the second ink flow path 74b is a drop stops boundary between the second channel portion 81b moves down the first flow path portion 81a, being pushed back through the first flow passage portion 81a.
[0089]
　Thus, the first ink flow passage 74a, the ink becomes the flow to flow path in the ink chamber 40 from the ink bottle 31, the second ink channel 74b causes air to flow in the ink containing chamber 40 to the ink bottle 31 as a flow path. That is, in between the ink bottle 31 and the ink container 18, the air amount corresponding ink chamber 40 of the ink injected into the ink chamber 40 from the ink bottle 31 to flow into the ink bottle 31, Tokoroiki liquid exchange It is carried out.
[0090]
　Then, rising the liquid surface of the ink to the second end 39b, the second end 39b of the second ink channel 74b is blocked by the ink, air in the ink bottle 31 through the second ink flow path 74b There is no longer flows. Then, reduces the pressure on the liquid surface of ink in the ink bottle 31, the inflow of ink from the ink bottle 31 to the ink chamber 40 is stopped.
[0091]
　Removing the ink bottle 31 from the ink injection flow path portion 39, the ink in the first ink flow passage 74a is atmospheric pressure takes. Therefore, the ink in the first ink flow passage 74a flows into the ink chamber 40, the liquid level of ink are aligned in the ink injection flow path portion 39 and the ink storage chamber 40.
[0092]
　According to the first embodiment has the advantages described below.
　(1) at least a portion of the ink injection flow path unit 39, since the grooves 77 are formed is sealed by the first film 46a and a second film 46b, by defining the depth and width of the groove 77, it defines the thickness of the ink injection flow path section 39. Therefore, an elongated ink injection flow path portion 39 capable of air-liquid exchange can be easily manufactured.
[0093]
　(2) Since the ink injection flow path portion 39 has a plurality of ink flow paths 74a, a 74b, at least one ink channel can be a channel for discharging the air. Therefore, it is possible to separate the ink flow path for flowing the ink in the ink chamber 40, and a flow path for discharging air from the ink chamber 40, ink can be stably replenished to the ink chamber 40.
[0094]
　(3) For example, when flowing a ink in the ink chamber 40, a plurality of ink flow paths 74a, and pressure ink presses the air in 74b, and the pressure at which air presses the ink balanced. Then, these ink flow passages 74a, the ink remains in the 74b, there is the ink does not flow into the ink storage chamber 40. In that respect, the second ink channel 74b is breaking a small first channel part 81a is a cross-sectional area, because the cross-sectional area and a larger second passage portion 81b, a balance of pressure air and the ink be able to. Therefore, it plurality of ink flow paths 74a, 74b of the channel and the ink which air is discharged easily divided into a flow passage to flow.
[0095]
　(4) for a plurality of ink flow paths 74a, the height of the second end portion 39b of 74b equal, can be easily manufactured ink injection flow path portion 39 as compared with the case where the height of the second end portion 39b is different.
　(5) the ink chamber 40, ink reservoir downward, upward is the space of air. Therefore, by the second end 39b is positioned in the upper space of the ink storage chamber 40 is protruded ink injection flow path portion 39 from the top wall 47, through the ink injection flow path unit 39 ink chamber within 40 air can be easily discharged.
[0096]
　(6) when the ink in the ink chamber 40 is replenished, the liquid level of the ink stored in the ink chamber 40 by the inflow ink is increased. When the liquid level reaches the upper limit display section 63, the second end 39b of the ink injection flow path portion 39 is closed by the ink, air can not enter into the ink injection flow path portion 39 from the second end 39b . Therefore, the replenishment of ink to the ink chamber 40 can be stopped at a position corresponding to the upper limit display section 63.
[0097]
　(7) the first buffer chamber 41a and the second buffer chamber 41b because they provided along the ink injection flow path portion 39, the ink injection flow path portion 39 can be reinforced by the buffer chambers 41a, 41b. Therefore, it is possible to reduce the possibility that the ink injection flow path portion 39 may be damaged.
[0098]
　(8) For example, if the ink chamber 40 is sealed, air is expanded pressing the surface of the ink under the influence of a temperature change, there is a fear that extruding the ink from the ink chamber 40. In that respect, the buffer chambers 41a ~ 41i are communicated with the atmosphere by the atmosphere communication unit 50, the communicating portion 51 opening upward position than the second end portion 39 b, communicating with the ink chamber 40 and the first buffer chamber 41a It is. Therefore, even if the ink chamber 40 ink up to the height of the second end portion 39b is accommodated, it can be reduced the risk that the ink will be pushed out of the ink chamber 40.
[0099]
　(9) even when the upper space in the ink chamber 40 is partitioned by the ink injection flow path portion 39 to the first upper space 78a and the second upper space 78b, a first upper space 78a which communicates with the communication passage 79 it is possible to communicate with the second upper space 78b into the first buffer chamber 41a.
[0100]
　(10) When the ink bottle 31 containing ink for replenishing connected to the ink injection flow path portion 39 for injecting ink into the ink chamber 40, the second end 39b of the ink injection flow path portion 39 by the ink When air from the occluded by the second end portion 39b can not enter, the flow of ink from the ink bottle 31 to the ink chamber 40 is stopped. When disconnecting the ink bottle 31 and the ink injection flow path portion 39, the ink remaining in the ink injection flow path portion 39 takes the atmospheric pressure, flows into the ink chamber 40. In that respect, the volume of the space above the ink chamber 40 is larger than the volume of the ink injection flow path portion 39, even if the ink remaining in the ink injection flow path portion 39 flows into the ink chamber 40, the ink can be reduced the risk that flows into the 1 buffer chamber 41a.
[0101]
　(11) by sealing a buffer recess 43 and the groove 77 in the first film 46a, (in the second ink container 18B, the buffer chambers 41a ~ 41d, 41g, 41h) buffer chambers 41a ~ 41c and ink injection because it can form the flow path unit 39, the ink container 18 can be easily manufactured.
[0102]
　(12) and the accommodation chamber recess 44 a groove 77 followed by sealing with a second film 46b, may be formed and a second end 39b of the ink chamber 40 and the ink injection flow path section 39. Therefore, the ink container 18 can be easily manufactured.
[0103]
　(13) for leakage fallen ink on the outside of the ink injection flow path unit 39 can be stored in the storage unit 42, thereby reducing the possibility that the ink spreads around the ink container 18. Then, such reservoir 42, by using the second film 46b for sealing the ink injection flow path portion 39 can be easily formed.
[0104]
　(14) Since the first end portion 39a is positioned higher than the display unit 16, when the display unit 16 and the first end portion 39a is the same height or the first end portion 39a is positioned below the display unit 16 compared to, ink can easily an injection operation for injecting the ink injection flow path portion 39 from the first end portion 39a.
[0105]
　(15) for forming side by side a first ink flow passage 74a and the second ink channel 74b, compared with the case of forming apart a first ink flow passage 74a and the second ink channel 74b, an ink injection channel strength parts 39 can be increased.
[0106]
　(16) an ink injection channel portion 39, which is formed so as to protrude from the top wall 47 of the ink chamber 40, the ink chamber 40, the space between the second end portion 39b and the top wall 47 a can be formed.
[0107]
　(17) a first buffer chamber 41a and the second buffer chamber 41b, by providing along the ink injection flow path portion 39 can be formed by effectively utilizing the lateral space of the ink injection flow path section 39. Further, since the provided buffer chambers 41a ~ 41i, ink flowing from the ink chamber 40 can turn accommodated in the buffer chamber 41a ~ 41i, thereby reducing the possibility that ink leaks from the ink container 18.
[0108]
　(18) a second ink container 18B, since provided for the second connecting portion 52b and the surface different from the cut-out portion 84 for connecting the second buffer chamber 41b and a third buffer chamber 41c, ink third buffer even if you've flows into the chamber 41c, it can be easily returned to the ink in the second buffer chamber 41b.
[0109]
　(Second Embodiment)
　will now be described with reference to the drawings a second embodiment of the printer. In this second embodiment, a portion of the shape of the ink container 18 is different from the case of the first embodiment. Since in other respects is substantially the same as the first embodiment, and redundant description by the same reference numerals are used for the same configuration is omitted.
[0110]
　As shown in FIG. 15, the first ink container 18A and the second ink container 18B has a viewing surface 61 visible through the window portion 21 (see FIG. 1). That is, an example in which the front wall 57 of the second wall defines an ink storage chamber 40, the ink in the ink chamber 40 functions as visible wall visible from the outside the ink chamber 40.
[0111]
　Then, the viewing surface 61, between the lower limit display section 62 and the upper display unit 63, the scale 89 of at least one (three in Fig. 15) is provided. Incidentally, when providing a plurality of graduations 89 is preferably provided with graduations 89 at regular intervals, including a lower display portion 62 and the upper display unit 63. The lower limit display section 62 provided on the first ink container 18A, the upper display unit 63, and the scale 89, be displaced to the center line A passing through the center of the cylindrical portion 73 is formed in the width direction X preferable. Incidentally, the center line A, is also a line passing through the center of the engagement portion 36.
[0112]
　The inner surface comprising an ink accommodating chamber 40 side of the front wall 57, a hydrophobic treatment is applied. For example, on the inner surface of the front wall 57, a silicon-based water repellent agent is applied. Thus, the ink is easily pull attached to the front wall 57 can easily recognize the liquid level of the ink stored in the ink chamber 40.
[0113]
　As shown in FIGS. 16 and 17, the communicating portion 51 formed in the ink chamber 40 is formed in a cylindrical shape. Furthermore, tubular communicating portion 51 is preferably formed at a position away from the top wall 47 and a second channel wall 76 b. This reduces the possibility that the ink along the edge of the top wall 47 and the second flow path wall 76b flows into the communicating portion 51.
[0114]
　Further, an eighth through hole 53h formed in the sixth buffer chamber 41f is formed in a cylindrical shape. Furthermore, tubular eighth through hole 53h is preferably formed away from the wall of the sixth buffer chamber 41f. Thereby reducing the possibility that ink along the wall of the edge of the sixth buffer chamber 41f eighth through hole 53h flows.
[0115]
　As shown in FIGS. 18 and 19, the first buffer chamber 41a, the partition wall 90 is provided for partitioning the the communicating portion 51 and the first connecting portion 52a. Partition wall 90, in the first buffer chamber 41a, from the lower end of the communicating portion 51 is formed, is formed so as to extend upward. An upper end of the partition wall 90 is positioned below the upper end of the first buffer chamber 41a. Therefore, a portion of the first buffer chamber 41a functions as a flow path leading from the communicating portion 51 can be less likely to occur the air-liquid exchange due to vibration.
[0116]
　The cylindrical portion 73, the ink in the ink chamber 40 has a pourable opening (inlet) is formed in a first wall of which is an example cylindrical portion forming wall 75a that defines the upper end of the ink container 18 . Further, the cylindrical portion forming wall 75a, the air communication portion 50 for communicating with the atmosphere is provided an ink storage chamber 40.
[0117]
　It is preferable atmosphere communication portion 50 and the cylindrical portion 73 is a direction (upward) protruding from the cylindrical portion forming wall 75a are the same. By forming the air communication portion 50 and the cylindrical portion 73 in the cylindrical portion forming wall 75a, it is possible to easily vent inspection venting from the other with closing either one of the cylindrical portion 73 and the atmosphere communicating portion 50 . The ventilation test, the ink chamber 40 is a test to see if there are no leaks in such an atmosphere communication path 93 connecting the ink storage chamber 40 and the atmosphere communication portion 50.
[0118]
　20, as shown in FIG. 21, reservoir 42 includes a reservoir bottom wall 48d which is provided above the top wall 47, a first reservoir wall 48a ~ third reservoir wall erected upward from the reservoir bottom wall 48d 48c, and are defined by a second film 46b. Further, the reservoir bottom wall 48d are partitioned to the reservoir 42 and the second connecting portion 52b.
[0119]
　Between the front wall 57 and the cylindrical portion formed wall 75a, a plurality (in this embodiment two) and the first corner 91 of the second corner 92 is provided. In other words, the cylindrical portion formed wall 75a and front wall 57 is connected via a first corner portion 91 of the second corner 92.
[0120]
　Specifically, the front wall 57 is provided along the vertical direction Z, defining the front end of the ink container 18. Then, the tubular portion forming the wall 75a is provided along the depth direction Y intersecting the vertical direction Z. The front wall 57 is located on the front side and lower side of the cylindrical portion forming wall 75a, the cylindrical portion forming the wall 75a is located on the rear side and the upper side of the front wall 57. That is, the upper end of the cylindrical portion forming the wall 75a side in the front wall 57 is positioned below the cylinder portion forming wall 75a, after the front end of the front wall 57 side in the cylinder portion forming wall 75a, rather than the front wall 57 It is located on the side.
[0121]
　Then, the front end of the cylindrical portion forming wall 75a there is a first corner 91, the upper end of the front wall 57 there is a second corner 92. Therefore, first corner portion 91, and a cylindrical portion formed wall 75a and the third reservoir wall 48c is the angle of intersection. The second corner portion 92 is a corner of the reservoir 42. A first corner 91 second corner section 92, the depth direction Y and vertical direction Z are located in different positions.
[0122]
　As shown in FIGS. 16 to 19, the ink container 18 is provided with an atmosphere communication path 93 for communicating the atmosphere with the ink chamber. Atmosphere communication path 93 of the present embodiment, the communicating portion 51, the first buffer chamber 41a ~ 9 buffer chamber 41i, the first connecting portion 52a ~ seventh connection portion 52 g, the third through-hole 53c ~ 10 through hole 53 j, notch 84 is constituted by air communication portion 50.
[0123]
　In the middle of the air channel 93, a fourth buffer chamber 41d is provided. Then, the atmosphere communication path 93 has a first atmosphere communication path 93a of the ink chamber 40 side than the fourth buffer chamber 41d, and a second atmosphere communication path 93b of the air side of the fourth buffer chamber 41d, the ing. The fourth buffer chamber 41d is a left wall 54, bottom wall 94, rear wall 95, front wall 96, is defined by the top wall 97, and the first film 46a.
[0124]
　The first atmosphere communication path 93a is communicating portion 51, the first buffer chamber 41a ~ third buffer chamber 41c, the first connection portion 52a ~ third connecting portion 52c, the third through-hole 53c ~ sixth through hole 53f, the notch portion and it is made of 84. The first atmosphere communication path 93a is a sixth through-hole 53f is an example of a connection port of the fourth buffer chamber 41d is connected to the fourth buffer chamber 41d. That is, the first atmosphere communication path 93a, at the left wall 54 of the fourth buffer chamber 41d, are connected to the position of the front wall 96 and the lower wall 94 close.
[0125]
　The second atmosphere communication path 93b includes a fifth buffer chamber 41e ~ 9 buffer chamber 41i, a fourth connection portion 52 d ~ seventh connection portion 52 g, seventh through hole 53 g ~ 10 holes 53 j, constituted by air communication portion 50 It is. The second atmosphere communication path 93b, in the lower wall 94 are connected to the position of the side wall 95 closer after leaving the front wall 96 than the sixth through hole 53f.
[0126]
　22, as shown in FIG. 23, the rear wall 95, as one end intersecting the bottom wall 94 (bottom) side is positioned on the side wall 96 side before the other end (upper end) side that intersects the top wall 97, intersect at an angle and the lower wall 94. That is, the rear wall 95, closed and inclined wall 95a which intersect obliquely and the lower wall 94, and a vertical wall 95b which intersects the top wall 97, and a transverse wall 95c positioned between the inclined wall 95a and the vertical wall 95b doing.
[0127]
　Therefore, the inclined wall 95a defining a fourth buffer chamber 41d, the ink from the sixth through hole 53f is connection port between the first atmosphere communication path 93a and the fourth buffer chamber 41d in the center direction of the fourth buffer chamber 41d It is functioning as a wall to induce. Then, the inclined wall 95a has a width in the depth direction Y of the fourth buffer chamber 41d is, the width of the upper widens toward the center portion than the lower width toward the second atmosphere communication path 93b fourth buffer chamber 41d I am inclined to. In other words, the inclined wall 95a is provided to be inclined away from the front wall 96 as the distance from the lower wall 94.
[0128]
　Next, the operation of the ink container 18.
　As shown in FIG. 24, for example, when moving the multifunction device 11, which may pose of the ink container 18 is changed. In this case, the ink from the sixth through hole 53f to the fourth buffer chamber 41d flows, ink flows in a direction away from the fourth connecting portion 52d along the inclined wall 95a of the rear wall 95. Further, the ink, the vertical walls 95b, lateral walls 95c, a top wall 97, left wall 54, is stored in the space defined by the first film 46a.
[0129]
　According to the second embodiment, the above first embodiment (1) below in addition to the effects of ~ (18)
has the advantages such as.
　(19) when the ink flows into the fourth buffer chamber 41d, the ink is guided toward the center of the fourth buffer chamber 41d. Therefore, the ink can be kept to a fourth buffer chamber 41d, it can be reduced the risk that the ink leaks to the outside through the air channel 93. Therefore, it is possible to reduce the possibility that the periphery of the ink container 18 is soiled with ink.
[0130]
　(20) canted 95a is because it is provided obliquely toward the center side of the fourth buffer chamber 41d, can be suppressed ink from flowing to the fourth connection portion 52 d. Therefore, it is possible to effectively utilize the buffer function of the fourth buffer chamber 41d.
[0131]
　(21) because it can induce ink by the inclined wall 95a defining a fourth buffer chamber 41d, compared with the case of providing a wall to induce walls and ink defining a fourth buffer chamber 41d separately, the ink container 18 It can be easily manufactured.
[0132]
　(22) Since the cylinder portion forming wall 75a and front wall 57 are connected to the first corner portion 91 via a second corner 92, even if the ink is leaked around the cylindrical portion 73, the leaked ink reduces the possibility of reducing the visibility flows to viewing surface 61, it is possible to reduce the possibility that the periphery of the ink container 18 is soiled with ink.
[0133]
　(23) Since the the atmosphere communicating portion 50 and the cylindrical portion 73 is provided in the cylindrical portion forming wall 75a, vent inspection venting from the other with closing either one of the opening of the atmosphere communication portion 50 and the cylindrical portion 73 it can be carried out easily.
[0134]
　The above embodiment may be modified as modification below. Further, the above embodiment and the following modifications may be combined arbitrarily.
　- Figure 25, as shown in FIG. 26, air communication portion 50 may be formed so as to extend along the depth direction Y.
[0135]
　- Figure 27, as shown in FIG. 28, may be provided with an ink outlet portion 65 (two in this modification) more for a single ink container 18. The two ink outlet portion 65, different supply unit 24 are connected respectively. The ink jet head 25 includes a large nozzle array 86 than the number of ink container 18 provided in the printer 12. The supply unit 24 connects one of the ink outlet portion 65 and one nozzle array 86.
[0136]
　· As shown in Figure 29, around the cylindrical portion 73 of the ink container 18, ink may be capable of absorbing absorbing portion 87 provided. Absorbing portion 87 may be provided so as to extend from the top surface 75 of the cylindrical portion 73 is formed to reservoir 42 side.
[0137]
　· As shown in Figure 29, the locking portion 37 for locking the mounting screws 35 to the ink container 18 is provided, provided with a threaded portion which mounting screw 35 is screwed to the mounting portion 33 of the ink container 18 is mounted it may be.
[0138]
　· As shown in FIG. 30, the window portion 21 may be provided on the decorative panel 99 attached to the front surface of the housing 20. That is, in the decorative panel 99, the portion facing the viewing surface 61 transparent form, may be a window portion 21 (transparent window). In this case, the lower limit display section 62 on the window portion 21 (transparent window) which the decorative panel 99 has an upper limit display section 63 may be formed at least one of the scale 89. The a case difficult to see the ink through the transparent window, the decorative panel 99 and a through hole to penetrate the housing 20 and the window portion 21, the lower limit display section 62 on the ink container 18 as shown in FIG. 15, the upper limit display section 63 may be formed at least one of the scale 89. When the through-hole and the window portion 21, it is possible to visually recognize the front wall 57 of the ink container 18 directly, easily visually recognize the amount of ink compared with the case of the transparent window and the window portion 21.
[0139]
　· Tubular portion forming the wall 75a and front wall 57 may be connected through three or more corners.
　- The fourth buffer chamber 41d, may be provided separately from the inclined wall 95a and the side wall 95 after defining a fourth buffer chamber 41d.
[0140]
　Inc. induces canted 95a may not be inclined. That is, the rear wall 95 may intersect perpendicularly to the lower wall 94. Then, the rear wall 95, or a groove, the ink may be induced by or adjust the hydrophilic or hydrophobic.
[0141]
　Ink injection flow path portion 39 may not include the cylindrical portion 73. For example, the ink injection flow path portion 39 may be formed by sealing a groove formed from the first end portion 39a to the second end 39b in the film. That is, the first end portion 39a may be formed by a groove and the film.
[0142]
　And operation panel 17 may include a touch panel capable of displaying the operation and as a display unit 16.
　Ink container 18 may be located below the first end portion 39a is a display unit 16.
[0143]
　Ink container 18, may not include the reservoir 42. Also, the storage unit 42, an opening formed in the two directions of the lateral (e.g. right and leftward), may be formed by sealing the first film 46a and a second film 46b.
[0144]
　Buffer recess 43 and the accommodation chamber recess 44, it may be opened in the same direction. Then, the accommodation chamber recess 44 and the buffer recess 43 may be sealed by a single film. Further, the ink injection flow path portion 39, a groove formed in one direction may be formed by sealing one film.
[0145]
　- first upper space 78a and the sum of the volume of the second upper space 78b may be larger than the volume of the ink flow path of one of the first ink flow passage 74a and the second ink channel 74b. Incidentally, the total volume of the first upper space 78a and the second upper space 78b is preferably larger than the volume of the first ink flow passage 74a comprising an ink flow path.
[0146]
　Ink injection flow path portion 39 may be provided at the end of the ink chamber 40. That is, the space above the ink chamber 40 may not be divided into a first upper space 78a and the second upper space 78b.
[0147]
　Ink container 18 may be configured not to include a buffer chamber 41a ~ 41i and the communication unit 51.
　Ink container 18 may be configured not to include the viewing surface 61. The viewing surface 61 may not be provided an upper limit display section 63. In addition, the viewing surface 61 may not be provided the lower display unit 62. Viewing surface 61 may be a surface that intersects the vertical direction Z.
[0148]
　- the second end 39b side of the ink injection flow path portion 39 may be formed at a position different from the top wall 47. For example, it may form a second end portion 39b so as to open the right wall 59.
　- a second end portion 39b of the first ink flow passage 74a, the second end 39b of the second ink channel 74b may be located at different positions in the vertical direction Z. In this case, preferably the second end portion 39b of the second end a second ink channel 74b than 39b of the first ink flow passage 74a is located above.
[0149]
　· First ink flow passage 74a may be configured to include a first flow path portion 81a as in the second ink channel 74b a second channel portion 81b. At this time, the lower end of the first flow path portion 81a provided in the first ink flow passage 74a, by varying the position of the lower end of the first channel part 81a provided in the second ink channel 74b in the vertical direction Z, the ink There possibility to remain in equilibrium flow path portion 81a, within 81b
can be reduced. At least one of the ink flow path of the first ink flow passage 74a and the second ink channel 74b is also provided with a plurality of at least one flow passage portion of the first flow path portion 81a and the second channel portion 81b good. The second ink channel 74b may be configured not to include the second flow path portion 81b as in the first ink flow passage 74a. First ink flow passage 74a and the second ink channel 74b may be the thickness (cross-sectional area) are different from each other.
[0150]
　Ink injection flow path portion 39 may be configured to have a single ink channel. Further, the ink injection flow path portion 39 may be configured to have three or more ink flow passages.
　Inc., by adhering to the medium, can be arbitrarily selected as long as it can be printed on the medium. For example, the ink particles are dissolved in a solvent of a functional material made of a solid material such as pigment or metal particles, also include such as those distributed or mixed aqueous ink, oil-based ink, gel ink, various compositions such as a hot melt ink It is intended to encompass things.
[0151]
　The medium can be paper, resin, metal, cloth, ceramic, rubber, natural materials (such as wood and stone) or may be a composite thereof. The thickness of the medium, plates, sheets, film, or the like foil. Furthermore, the shape of the medium may be of any shape such as a rectangle or a circle. That is, for example, paper and resin composite film (resin-impregnated paper, a resin coated paper), the complex between the resin and the metal
film (laminate film), woven, nonwoven, disc, may be such as a circuit board.
[0152]
　Printer is an apparatus for printing characters or pictures, images such as photographs by attaching a liquid such as ink to a medium, a serial printer, a lateral type printer, a line printer, or the like page printers. Moreover, offset printing apparatus may be such as textile printing apparatus. Further, the printer has only to have a printing function for printing on at least medium, or as an MFP which combines a function other than the printing function. Further, the printer may be an apparatus for printing on a medium having a three-dimensional curved surface is not limited to a two-dimensional medium.
[0153]
　Next, the write-once below technical idea understood from the embodiment and modified example.
　Meanwhile, some of the ink cartridge as described in Patent Document 1, there is one in communication with the atmosphere by the atmosphere communication passage. However, in such an ink cartridge, for example, by the posture change or temperature change, ink contained in the ink cartridge was sometimes leaks to the outside entering the air channel. Furthermore, when injecting ink into the ink cartridge, it was possible soiling the surrounding spill the ink. The purpose of this technical idea is to provide a printer having an ink container capable of reducing the possibility that the ink container and the ambient is soiled with ink, the ink container.
[0154]
　- technical idea 1
　and the ink jet head capable of accommodating the ink supply of the ink chamber, said ink containing an ink injection flow path unit printing apparatuses injected into chamber air communicating passage communicating the ink storage chamber to the atmosphere of a buffer chamber provided in the middle, wherein the buffer chamber, a wall that induces ink toward the center of the buffer chamber and the atmosphere communication passage of the ink accommodating chamber side from the connection port of the buffer chamber ink container characterized by having a.
[0155]
　According to this configuration, when the ink flows into the buffer chamber, the ink is guided toward the center of the buffer chamber. Therefore, it is possible to keep the ink in the buffer chamber, thereby reducing the possibility that the ink through the atmosphere communication path from leaking to the outside. Therefore, it is possible to reduce the possibility that the periphery of the ink container is soiled with ink.
[0156]
　- technical idea 2
　the wall is that the width of the buffer chamber is inclined so that the width of the side toward the center portion of the buffer chamber than the width of the side toward the atmosphere communication path of the air side becomes wider the ink container according to the technical idea 1 wherein.
[0157]
　According to this arrangement, the walls, because it is provided obliquely toward the center side of the buffer chamber can be suppressed from flowing ink into the atmosphere communication path on the atmosphere side. Therefore, it is possible to effectively utilize the buffer function of the buffer chamber.
[0158]
　- technical idea 3
　the wall, the ink container according to the technical idea 1 or spirit 2, characterized in that a wall defining the buffer chamber.
[0159]
　According to this arrangement, since the ink can induce a wall defining a buffer chamber, compared with the case of providing a wall to induce walls and ink defining a buffer chamber separately, may be easily prepared ink container.
[0160]
　- technical idea 4
　and the ink jet head capable of accommodating the ink supply of the ink chamber, and a tubular portion having a pourable opening ink to the ink chamber, a first wall wherein the tubular portion is formed, defining the ink chamber, the ink of the ink chamber and a second wall visible from the ink accommodating outdoor, the first wall and the second wall, connected through a plurality of corners ink container, characterized in the that the.
[0161]
　According to this arrangement, since the first wall and the second wall is connected via a plurality of corners, even when the leaked ink around the cylindrical portion and leaked ink flows to the viewing surface reducing the possibility of reducing the visibility, it is possible to reduce the possibility that the periphery of the ink container is soiled with ink.
[0162]
　- technical idea 5
　The first wall, the ink container according to the ink chamber on the technical idea 4, characterized in that atmosphere communicating portion for communicating with the atmosphere is provided.
[0163]
　According to this arrangement, since the the atmosphere communicating portion and the cylindrical portion is provided on the first wall, easily vent inspection venting from the other with closing either one of the opening of the atmosphere communication portion and the cylindrical portion It can be carried out.
DESCRIPTION OF SYMBOLS
[0164]
　11 ... MFP, 12 ... printer, 13 ... image reading apparatus, 15 ... operation unit, 16 ... display unit, 17 ... operation panel, 18 ... ink container, 18A ... first ink container, 18B ... second ink storage body, 19 ... accommodation body unit, 20 ... housing, 21 ... window, 23 ... printing section, 24 ... supply portion, 25 ... ink jet head, 26 ... carriage, 28 ... rotating mechanism, 29 ... cover, 30 ... cap , 31 ... ink bottle, 33 ... attaching portion, 34 ... claw portion, 35 ... mounting screw, 36 ... engagement portion, 37 ... locking portion, 39 ... ink injection flow path section, 39a ... first end, 39 b ... a second end, 40 ... ink receiving chamber, 41a ~ 41i ... buffer chamber, 42 ... storage part, 43 ... recess buffer recess for 44 ... accommodating chamber, 45 ... storage body case, 46a ... first film (film one example), 46b ... second Fi Beam (an example of the film), 47 ... top wall, 48a ~ 48c ... reservoir walls, 48d ... reservoir bottom wall 50 ... air communicating portion, 51 ... communicating portion, 52a ~ 52 g ... connecting portion, 53a ~ 53 j ... through hole, 54 ... left wall, 56 ... bottom wall 57 ... (an example of a side wall and a second wall) front wall, (an example of a side wall) 58 ... rear wall (an example of a side wall) 59 ... right wall, 61 ... viewing surface, 62 ... lower display unit 63 ... upper display unit, 65 ... ink outlet section, 66 ... filter mounting portion, 67 ... ink outlet passage, 68 ... vertical ribs, 69a ~ 69c ... intersecting ribs, 70 ... extending portion, 71a , 71b ... protruding portion, 73 ... cylindrical portion, 74a, 74b ... ink flow path, 75 ... upper surface (an example of the first wall) 75a ... cylindrical portion forming the wall, 76a ~ 76c ... channel wall, 77 ... groove, 78a ... first upper space, 78b ... second upper space, 79 ... communicating passage, 80a, 80b ... communication , 81a ... first flow path portion, 81b ... second flow passage portion, 82 ... ink receiving unit, 83 ... partition wall, 84 ... notch, 86 ... nozzle array, 87 ... absorber, 89 ... graduation, 90 ... partition wall, 91 ... first corner portion, 92 ... second corner, 93 ... air channel, 93a ... first air communicating passage, 93 b ... second atmosphere communication path, 94 ... bottom wall, 95 ... rear wall, 95a ... canted, 95b ... vertical wall, 95c ... lateral wall, 96 ... front wall, 97 ... upper wall, 99 ... decorative panel, A ... center line, X ... width direction, Y ...

we claims

[Requested item 1]
　And capable of accommodating ink chamber to the ink supply to the ink jet head,
　connects a second end opened to the inside of the first end portion that opens to the outside of the ink chamber wherein the ink chamber, the ink an ink injection flow path portion capable injecting the ink into the housing chamber
　provided with,
　at least a portion of the ink injection flow path unit, the film defined a groove is attached to the channel wall by the flow path wall ink container, characterized in that is sealed is formed.
[Requested item 2]
　The ink injection flow path unit, the ink container according to claim 1, characterized in that it comprises a plurality of ink flow paths connected to said first end and said second end.
[Requested item 3]
　At least one ink channel of the plurality of ink flow paths,
　a first flow path part,
　and a larger second channel part cross-sectional area than the first flow path portion
　claims, characterized in that it comprises a the ink container according to claim 2.
[Requested item 4]
　Wherein the second ends of the plurality of ink flow paths, ink container according to claim 2 or claim 3, characterized in that located in the same height in the ink chamber.
[Requested item 5]
　The second end side of the ink injection flow path unit is located in the upper space of the ink chamber, characterized in that it is protruded downward from the ceiling walls defining the ink storage chamber the ink container according to any one of claims 1 to 4.
[Requested item 6]
　And a ceiling wall and side walls defining the ink chamber,
　said side wall extending in a direction intersecting with the top wall, is erected in the vertical direction in the use state, viewing the ink of the ink accommodating chamber from the outside a possible viewing surface,
　said viewing surface, the upper limit display section that indicates the measure of the upper limit of the replenishing amount of the ink is provided,
　the ink injection flow path portion, said second end in the vertical direction the ink container according to any one of claims 1 to 5, characterized in that located at a position corresponding to the upper limit display section.
[Requested item 7]
　A buffer chamber provided along the ink injection flow path portion,
　and a communicating portion for communicating with the ink storage chamber and the buffer chamber,
　one of claims 1 to 6, further comprising a the ink container according to any one.
[Requested item 8]
　The buffer chamber further comprising a atmosphere communicating portion for communicating to the atmosphere,
　in the use state of the ink container, the communicating portion, characterized in that communicating with the ink storage chamber above the position than said second end the ink container according to claim 7,.
[Requested item 9]
　In the use state of the ink container, wherein the space above the second end of the ink accommodating chamber by the ink injection flow path portion is divided into a first upper space and a second upper space,
　the first the ink container according to claim 8, further comprising a communication passage for communicating the upper space and the second upper space.
[Requested item 10]
　In the use state of the ink container, the volume of the second end the space above in the ink storage chamber, according to claim 8 or claim being larger than the volume of the ink injection flow path portion the ink container according to 9.
[Requested item 11]
　The buffer chamber, the recess for one surface is opened buffer, ink according to any one of claims 7 to claim 10, characterized in that it is formed is sealed by the film container.
[Requested item 12]
　The film,
　a first film forming part of the ink injection flow path portion to seal the portion of the groove,
　the said ink injection flow path portion to seal the portion of the groove first a second film forming the second end,
　has,
　the ink storage chamber, characterized in that the recess accommodating chamber which one surface is opened is formed is sealed by the second film the ink container according to any one of claims 1 to 11,.
[Requested item 13]
　In the use state of the ink container, and located at a position lower than the first end, further comprising a reservoir for storing ink flowing down the outside of the ink injection flow path portion from said first end,
　the reservoir includes
　a top wall defining the ink chamber,
　erected upward from the top panel wall, a reservoir wall portion of the side is opened,
　sealed the opening facing the side of the該貯Tomekabe the film and, for stop
　defined by the ink container according to any one of claims 1 to 12, characterized in that opens upward.
[Requested item 14]
　An ink container according to any one of claims 1 to 13,
　and the ink jet head for ejecting the ink,
　a casing for housing and said ink jet head and the ink container,
　wherein an operation panel provided in the housing,
　provided with,
　the operation panel includes a display unit,
　wherein the ink container is disposed so as to at least partly located at the same height as the operation panel,
　the in injection state of injecting ink into the ink chamber through an ink injection flow path portion, the first end of the ink injection flow path unit may be positioned above the display unit printer .
[Requested item 15]
　Further comprising a buffer chamber provided with the ink storage chamber in the middle of the air communicating passage that communicates with the atmosphere,
　said buffer chamber, the buffer from the connection port of the buffer chamber and the atmosphere communication passage of the ink accommodating chamber side the ink container according to any one of claims 1 to 13, characterized in that it comprises a wall of inducing the ink toward the center of the chamber.