The entire disclosure of Japanese Patent Application No. 2016-159898, filed Aug. 17, 2016 is expressly incorporated by reference herein.
The present disclosure relates to a recording apparatus that performs recording on a recording medium.
Hereinafter, an ink jet printer will be described as an example of a recording apparatus. Because ink used in an ink jet printer is a liquid, in some cases, ink may begin to leak out for some reason from an ink supply flow channel extending from an ink housing unit that houses ink to a recording head, an ink flow channel extending from a cap that caps the recording head to a waste liquid tank that stores waste ink via a suction pump or the like. When ink leaks out, there is a concern that the leaked ink may flow to a bottom portion of the apparatus and consequently drip onto a mounting surface of the apparatus thereby contaminating the mounting surface.
In view of such a situation, JP-A-6-278290 discloses an ink jet recording apparatus provided with an ink-receiving container at the bottom of the apparatus.
The bottom surface of the apparatus may be provided with legs that receive the load of the apparatus. The legs are often formed of an elastic material such as rubber and, for example, play a role of protecting the device from vibration and shock.
In the ink jet recording apparatus described in JP-A-6-278290, from the disclosure contents of
When the legs of the bottom portion of the apparatus are provided only at the four corners of the bottom portion of the apparatus, there is a risk that the legs at the bottom portion of the apparatus cannot appropriately bear the weight of the apparatus depending on weight of the apparatus and the size of the apparatus.
However, if an ink-receiving container similar to that described in JP-A--278290 is provided at the bottom portion of the apparatus, the following problems occur when legs are provided at positions other than the four corners of the bottom portion of the apparatus.
For example, if legs are attached to the ink-receiving container, the ink-receiving container may become deformed. In addition, in the case where the ink-receiving container is provided in a plurality so as to avoid the legs, it takes time to install the ink-receiving containers and, at the same time, regions where the ink-receiving containers are not provided are formed thus increasing the risk of ink leakage. Also, if one ink-receiving container is used and holes are formed in the ink-receiving container that allow passage of the legs at the positions where the legs are to be provided, the ink may easily leak out from the holes when the apparatus is tilted.
Since an optional device such as an optional cassette may be provided at the bottom portion of the recording apparatus, the above-mentioned problem is not limited to the case where legs are provided at the bottom portion of the apparatus, but also applies to the case where an engagement portion to be engaged with the optional device is provided at the bottom portion of the apparatus.
An advantage of some aspects of the disclosure is that a recording apparatus is provided with a liquid-receiving tray for receiving a liquid, which secures the degree of freedom of the configuration of the bottom portion of the apparatus and prevents or suppresses leakage of the liquid.
A recording apparatus according to an aspect of the disclosure includes a recording head that ejects a liquid onto a medium, a liquid housing unit that houses the liquid, a supply path of the liquid from the liquid housing unit to the recording head, an assembly body that includes the recording head, a liquid-receiving tray that receives the liquid leaking from the assembly body below the assembly body and that has an opening portion which opens at a position higher than a bottom portion of the liquid-receiving tray.
The liquid-receiving tray can receive the liquid leaking from the assembly body including the recording head. Moreover, because the opening portion is formed in the liquid-receiving tray, the bottom portion of the assembly body can be accessed via the opening portion and, for example, it is possible to provide a leg portion that can receive the load of the apparatus. That is, while providing the ink-receiving tray, the degree of freedom of the configuration of the bottom portion of the apparatus can be secured, and, at the same time, a wide area of the liquid-receiving tray can also be secured.
Because the opening portion opens at a position higher than the bottom portion, even if the liquid staying at the bottom of the tray flows when the apparatus is tilted, the liquid does not leak easily from the opening portion.
As described above, in the configuration providing the liquid-receiving tray that receives the liquid, leakage of the liquid can be prevented or suppressed while securing the degree of freedom of the configuration of the bottom portion of the apparatus.
In this case, the opening portion may be at a position higher than the peripheral portion of the liquid-receiving tray.
Because the opening portion is at a position that is higher than the peripheral portion of the liquid-receiving tray, it is possible to prevent or suppress leakage of liquid from the opening portion in the period until the liquid-receiving tray becomes full with the liquid.
In this case, a housing that covers the assembly body may be included, a leg portion that receives a load of the assembly body is attached, via the opening portion, to a lower frame that forms a lower portion of the assembly body, and the liquid-receiving tray has a peripheral portion that is located between an inner wall of the housing and the leg portion in a direction intersecting the apparatus height direction.
Because the housing that covers the assembly body is included, a leg portion that receives a load of the assembly body is attached to a lower frame that forms a lower portion of the assembly body via the opening portion, and the liquid-receiving tray has a peripheral portion that is located between an inner wall of the housing and the leg portion in a direction intersecting the device height direction, it is possible to secure a wide area of the liquid-receiving tray.
In this case, the peripheral portion of the liquid-receiving tray may extend toward the inner wall of the housing and face the inner wall.
Because the peripheral portion of the liquid-receiving tray may extend toward the inner wall of the housing and face the inner wall, it is possible to delay the timing at which the liquid leaks out from the peripheral portion when the apparatus is tilted.
In this case, a protrusion that protrudes upward and in which the opening portion is formed in an upper portion thereof may be formed in the liquid-receiving tray, and the leg portion may be fixed to the lower frame in a state in which at least one portion of the leg portion is inserted into an inner space of the protrusion.
Because the protrusion that protrudes upward and in which the opening portion is formed in an upper portion thereof may be formed in the liquid-receiving tray, and the leg portion may be fixed to the lower frame in a state in which at least one portion of the leg portion is inserted into an inner space of the protrusion, the height of the apparatus including the leg portion can be reduced.
In this case, a medium housing unit that houses a medium on a lower side of the assembly body and the liquid-receiving tray may be included, and the liquid-receiving tray may be located between the assembly body and the medium housing unit.
Because a medium housing unit that houses a medium on a lower side of the assembly body and the liquid-receiving tray may be included, and the liquid-receiving tray may be located between the assembly body and the medium housing unit, it is possible to prevent or suppress the adhesion of a liquid to the medium housing unit.
In this case, a protrusion that protrudes upward and in which the opening portion is formed in an upper portion thereof may be formed in the liquid-receiving tray, a positioning portion protruding toward the assembly body and engaging with the assembly body so as to set a position of the assembly body may be formed in the medium housing portion, and the positioning portion may engage with the assembly body through the opening portion with at least a portion of the positioning portion entering the internal space of the protrusion.
Because the positioning portion may engage with the assembly body through the opening portion with at least a portion of the positioning portion entering the internal space of the protrusion, it is possible to suppress the height of the apparatus including the medium housing unit.
In this case, a protrusion that protrudes upward and in which the opening portion is formed in an upper portion thereof may be formed in the liquid-receiving tray, a connecting portion that protrudes toward the assembly body and that is connected to the assembly body may be provided in the medium housing unit, and the connecting portion may come into contact with the assembly body through the opening portion with at least a portion of the connecting portion entering the internal space of the protrusion.
In the configuration in which the medium housing unit and the assembly body are connected to each other, the above-described operational effect can be obtained.
In this case, the liquid-receiving tray may be provided with a liquid absorber that absorbs liquid.
Because the liquid-receiving tray may be provided with a liquid absorber that absorbs the liquid, it is possible to suppress the flow of the liquid inside the liquid-receiving tray and suppress the leakage of the liquid from the liquid-receiving tray.
In this case, an intermediate unit that includes a check valve may be provided in the supply path from the liquid housing unit to the recording head, and a liquid storage capacity of the liquid may be equal to or larger than a capacity of the liquid when the liquid fills at least the supply path of the liquid between the intermediate unit and the recording head.
Because an intermediate unit that includes a check valve may be provided in the supply path from the liquid housing unit to the recording head, and a liquid storage capacity of the liquid is equal to or larger than a capacity of the liquid when the liquid fills at least the supply path of the liquid between the intermediate unit and the recording head, even if the leakage capacity of the liquid is the maximum (worst), this can be dealt with.
In this case, the liquid-receiving tray need not bear the load of the assembly body.
Because the liquid-receiving tray need not bear the load of the assembly body, deformation of the liquid-receiving tray can be prevented.
The disclosure will be described with reference to the accompanying drawings, wherein like numbers reference like elements.
Hereinafter, embodiments of the disclosure will be described with reference to the drawings. In addition, the same reference signs will be used to refer to similar structures in the embodiments, and these structures will only be described in the first embodiment and description thereof will be omitted in subsequent embodiments.
Moreover, in the X-Y-Z coordinate system illustrated in each diagram, the X direction corresponds to a main scanning direction of a carriage (movement direction), that is, a width direction of a recording apparatus, the Y direction corresponds to a depth direction of the recording apparatus, and the Z direction corresponds to an apparatus height direction. In addition, in each diagram, the +X direction side corresponds to the left side of the apparatus, the −X direction corresponds to the right side of the apparatus, the −Y direction side corresponds to the front surface side of the apparatus, the +Y direction side corresponds to the rear surface side of the apparatus, the +Z direction side corresponds to the upper side of the apparatus, and the −Z direction side corresponds to the lower side of the apparatus.
Referring to
The housing 14 is, for example, a cover that covers the periphery of the assembly body 12. The housing 14 may be formed of, for example, a resin material.
A first medium housing unit 18 that is detachable from the assembly body 12 is provided in a lower portion of the printer 10. The first medium housing unit 18 is capable of being inserted into and removed from the assembly body 12 from the apparatus-depth-direction front surface side.
On the apparatus-depth-direction front surface side of the printer 10, a discharge opening 20 and a discharge tray 22 are provided on an apparatus-height-direction upper side of the first medium housing unit 18. Moreover, on the apparatus-depth-direction front surface side of the printer 10, an operation unit 24 is provided above the discharge opening 20 and the discharge tray 22. As illustrated in
Moreover, as illustrated in
Next, as illustrated in
Here, a recording operation performed on a medium in the printer 10 will be described. A medium housed in the first medium housing unit 18 is sent to a region facing the recording head 32 of the carriage 30 by a feeder (not illustrated). The medium receives the ink ejected from the recording head 32 and recording is performed in the region facing the recording head 32. Then, the medium on which recording has been performed is discharged toward the discharge tray 22 through the discharge opening 20.
Next, an ink supply path 34 that extends to the recording head 32 in the printer 10 will be described with reference to
Referring to
As illustrated in
As illustrated in
Specifically, ink tubes 44A, 44B, 44C, and 44D extending from the ink tanks 36A and 36B are respectively connected to the plurality of ink connectors 40a of the intermediate unit 40. The ink supply path 34 supplies ink from the ink tanks 36A and 36B to the recording head 32 via the ink tubes 44A, 44B, 44C, and 44D, the intermediate unit 40 and the ink tubes 42. In addition, for example, black ink is housed in the ink tank 36A and magenta, cyan, and yellow color inks are housed in the ink tank 36B.
In addition, in the above-described embodiment, the ink tanks 36A and 36B are used; however, it is possible to adopt a configuration in which an optional ink tank is not provided. For example, it is also possible to adopt a configuration in which an ink cartridge housing unit (not illustrated) is provided instead of the intermediate unit 40, and a plurality of ink cartridges (not illustrated), which are examples of the “liquid housing unit”, are detachable from the apparatus-depth-direction front surface side of this ink cartridge housing unit. In such a case, the ink contained in the ink cartridges installed in the ink cartridge housing unit is supplied to the recording head 32 via the ink tubes 42. In addition, for example, inks such as black, magenta, cyan, and yellow inks are housed in the ink cartridges (not illustrated).
Next, the configuration of the ink-receiving tray 26 and the leg portions 28 will be described with reference to
As illustrated in
Even if the ink tube 42 is detached from the ink tube connecting portion 40b of the intermediate unit 40, ink can be prevented from leaking out from the intermediate unit 40 side by the check valve. Similarly, even if an ink cartridge (not illustrated) or the ink tubes 44A, 44B, 44C, and 44D are detached from the ink connectors 40a, it is possible to prevent the leakage of ink from the intermediate unit 40 side by the check valve.
Moreover, for example, as illustrated in
Moreover, a plurality of protrusions 48 (raised portions) are formed on the bottom portion 26a of the ink-receiving tray 26 so as to protrude upward in the apparatus height direction. Top portions 48a of the protrusions 48 are set so as to be higher than the top of the peripheral portion 26b in the apparatus height direction. Opening portions 48b are formed in the top portions 48a of the protrusions 48.
Furthermore, a plurality of protrusions 50 (raised portions) and at least one protrusion 52 (raised portion) are formed on the bottom portion 26a so as to project upward in the device height direction. The top portions of the protrusions 50 and the protrusion 52 are also set to be higher than the top portion of the peripheral portion 26b, and opening portions 50a and 52a are respectively formed in the top portions of the protrusions 50 and the protrusion 52.
Here, referring to
Because the top portions 48a of the protrusions 48 and the top portions of the protrusions 50 and the protrusion 52 are set higher than the top portion of the peripheral portion 26b in the apparatus height direction, the liquid surface (refer to imaginary line S) when the maximum capacity of ink is housed does not reach the top portions 48a of the protrusions 48 and the top of the protrusions 50 and the protrusion 52, and the ink housed in the ink-receiving tray 26 can be prevented from leaking out from the opening portions 48b, 50a, and 52a.
Next, attachment of the ink-receiving tray 26 and the leg portions 28 to the assembly body 12 will be described with reference to
Here, also in the lower frames 56, protrusions 58 (refer to
Here, the leg portions 28 are, for example, formed of a material having both high friction and elasticity such as rubber, or a high friction material or an elastic material. Through holes 28a are formed in the leg portions 28. In a state where at least a part of the leg portions 28 has entered the internal space of the protrusions 48, by tightening fastening members 60 into the threaded holes 58b of the protrusions 58 of the lower frames 56 via the through holes 28a and the opening portions 48b of the protrusions 48, the leg portions 28 are attached to the lower frames 56. Screw members are given as an example of the fastening members 60.
Here, the leg portions 28 are arranged below the top portions 58a of the protrusions 58 of the lower frames 56 with the top portions 48a of the protrusions 48 of the ink-receiving tray 26 interposed therebetween. The weight of the assembly body 12 is borne by the leg portions 28 through the top portions 58a of the protrusions 58 of the lower frames 56 and the top portions 48a of the protrusions 48 of the ink-receiving tray 26. Here, because the top portions 48a of the ink-receiving tray 26 are only interposed between the top portions 58a of the protrusions 58 of the lower frames 56 and the leg portions 28, the assembly body 12 is supported by the leg portions 28. In other words, in the region surrounded by the peripheral portion 26b of the ink-receiving tray 26, because the leg portions 28 support the assembly body 12 via the lower frames 56, the ink-receiving tray 26 does not receive the load of the assembly body 12 to support the assembly body 12, and thus there is no risk of the ink-receiving tray 26 becoming deformed, or even if the ink-receiving tray 26 is deformed, the amount of deformation can be suppressed.
Moreover, the peripheral portion 26b of the ink-receiving tray 26 is arranged between an inner wall 14a of the housing 14 and the leg portions 28. Therefore, because the peripheral portion 26b of the ink-receiving tray 26 can be arranged outside the positions where the leg portions 28 are arranged, the size of the ink-receiving tray 26 can be increased, and ink can be received over a wide region with respect to the bottom portion of the assembly body 12 and, moreover, the maximum ink housing capacity in the ink-receiving tray 26 can be increased.
Moreover, the peripheral portion 26b of the ink-receiving tray 26 as illustrated in
In the printer 10, for example, as shown in
As illustrated in
Moreover, in the assembly body 12, in a state in which the ink-receiving tray 26 is attached to the assembly body 12, a connector portion 64 that protrudes from the opening portion 52a of the protrusion 52 toward the apparatus height direction lower side is provided. The connector portion 64 is connected to a cable 66 that extends up to a control unit (not illustrated) provided in the assembly body 12.
As illustrated in
In the second medium housing unit 38, a connecting portion 70 is provided at a position corresponding to the protrusion 52 in a state in which the second medium housing unit 38 is attached to the assembly body 12. The connecting portion 70 protrudes from the second medium housing unit 38 toward the assembly body 12. When the second medium housing unit 38 is installed in the assembly body 12, at least one portion of the connecting portion 70 is inserted into the inner space of the protrusion 52. At least one portion of the connecting portion 70 is connected to the connector portion 64 via the opening portion 52a. The information of the second medium housing unit 38 is transmitted to the control unit (not illustrated) inside the assembly body 12 via the connector portion 64 and the cable 66.
For example, when the second medium housing unit 38 is attached to the assembly body 12, the second medium housing unit 38 supports the assembly body 12 at positions (not illustrated) different from the positioning portions 68 and the leg portions 28. That is, in a state in which the second medium housing unit 38 is attached to the assembly body 12, for example, the leg portions 28 and an upper surface 38a of the second medium housing unit 38 are separate from each other. Therefore, in a state in which the second medium housing unit 38 is attached to the assembly body 12, the weight of the assembly body 12 is not borne by the leg portions 28.
(1) Although the leg portions 28 are attached to the lower frames 56 by the fastening members 60, instead of this configuration, as shown in
Moreover, in the top portions 58a of the protrusions 58 of the lower frames 56, opening portions 58c are formed instead of the threaded holes 58b. The snap-fit portions 72a of the leg portions 72 are made to pass through the opening portions 48b of the protrusions 48 of the ink-receiving tray 26 and the opening portions 58c of the protrusions 58 of the lower frames 56 to fix the leg portions 72 to the lower frames 56. Even with such a configuration, since the opening portions 48b and 58c are positioned further toward the upper side in the apparatus height direction than the peripheral portion 26b of the ink-receiving tray 26, it is possible to prevent ink from leaking out through the opening portions 48b and 58c. In addition, the imaginary line denoted by reference sign S in
(2) Although the ink absorber 46 is provided on the bottom portion 26a of the ink-receiving tray 26, instead of this configuration, a configuration in which the ink absorber 46 is not provided may be used.
(3) The leg portions 28 are attached to the lower frames 56 via the ink-receiving tray 26; however, instead of this configuration, a configuration in which the leg portions 28 are attached to the bottom frame 54 via the ink-receiving tray 26 may be used.
In summary, the printer 10 includes the recording head 32 that ejects ink onto a medium, the ink tanks 36A and 36B that house ink, the ink supply path 34 from the ink tanks 36A and 36B to the recording head 32, the assembly body 12 including the recording head 32, and, below the assembly body 12, the ink-receiving tray 26 for receiving ink leaking from the assembly body 12, the ink-receiving tray 26 having the opening portions 48b, 50a, and 52a which open at positions higher than the bottom portion 26a.
According to the above configuration, the ink-receiving tray 26 can receive ink leaking from the assembly body 12 including the recording head 32. Moreover, because the opening portions 48b, 50a, 52a are formed in the ink-receiving tray 26, it is possible to access the bottom of the assembly body 12 via the opening portions 48b, 50a, and 52a, and it is possible to provide the leg portions 28 and the like that, for example, receive the load of the apparatus. That is, while providing the ink-receiving tray 26, the degree of freedom of the configuration of the bottom portion of the apparatus can be secured, and, at the same time, a wide area of the ink-receiving tray 26 can also be secured. Because the opening portions 48b, 50a, and 52a open at positions higher than the bottom portion 26a, even when the ink staying at the bottom of the tray flows when the apparatus is tilted, ink does not easily flow from the opening portions 48b, 50a, and 52a. As described above, in the configuration providing the ink-receiving tray 26 that receives ink, leakage of ink can be avoided or suppressed while securing the degree of freedom of the configuration of the bottom of the apparatus.
The opening portions 48b, 50a, and 52a are located higher than the peripheral portion 26b of the ink-receiving tray 26. According to this configuration, it is possible to prevent or suppress the leakage of ink from the opening portions 48b, 50a, and 52a in the period until the ink-receiving tray 26 becomes full with the liquid.
The leg portions 28 for receiving the load of the assembly body 12 are attached to the lower frames 56 forming the lower portion of the assembly body 12 through the opening portions 48b and the peripheral portion 26b of the ink-receiving tray 26 is positioned between the inner wall 14a of the housing 14 and the leg portions 28 in directions intersecting the device height direction, that is, in the device width direction and the device depth direction. According to this configuration, a wide area of the ink-receiving tray 26 can be secured.
The peripheral portion 26b of the ink-receiving tray 26 extends toward the inner wall 14a of the housing 14 and faces the inner wall 14a. According to this configuration, it is possible to delay the timing at which the ink leaks out from the peripheral portion 26b when the apparatus is tilted.
The protrusions 48 protruding upward and having the opening portions 48b formed in the upper portion thereof are formed in the ink-receiving tray 26 and the leg portions 28 are attached to the lower frames 56 in a state where at least a portion of the leg portions 28 is inserted into the internal space of the protrusions 48. According to this configuration, the height of the apparatus including the leg portions 28 can be reduced.
The second medium housing unit 38 for housing the medium is provided on the lower side of the assembly body 12 and the ink-receiving tray 26, and the ink-receiving tray 26 is positioned between the assembly body 12 and the second medium housing unit 38. According to this configuration, it is possible to prevent or suppress the adhesion of ink to the second medium housing unit 38.
The protrusions 50 protruding upward and having the opening portions 50a formed in the upper portion thereof are formed in the ink-receiving tray 26. The positioning portions 68 that protrude toward the assembly body 12, that engage with the assembly body 12 and that set the position of the assembly body 12 are formed in the second medium housing unit 38 and the positioning portions 68 engage with the assembly body 12 via the opening portions 50a in a state in which at least a portion of the positioning portions 68 enters the internal space of the protrusions 50. According to this configuration, the height of the apparatus including the second medium housing unit 38 can be reduced.
The protrusion 52 protruding upward and having the opening portion 52a formed in the upper portion thereof is formed in the ink-receiving tray 26. The connecting portion 70 that protrudes toward the assembly body 12 and that connects to the assembly body 12 is formed in the second medium housing unit 38 and the connecting portion 70 connects to the assembly body 12 via the opening portion 52a in a state in which at least a portion of the connecting portion 70 enters the internal space of the protrusion 52.
The ink-receiving tray 26 is provided with the ink absorber 46. According to this configuration, it is possible to suppress the flow of ink inside the ink-receiving tray 26 and to suppress the leakage of ink from the ink-receiving tray 26.
The intermediate unit 40 which includes a check valve is provided in the ink supply path 34 from the ink tanks 36A and 36B to the recording head 32, and the liquid housing capacity of the ink-receiving tray 26 is equal to or larger than the capacity of ink in the case where the ink supply path 34 is filled with ink at least between the intermediate unit 40 and the recording head 32. According to this configuration, even a situation where the ink leakage capacity is maximum (worst) can be dealt with.
The ink-receiving tray 26 does not bear the load of the assembly body 12. According to this configuration, it is possible to prevent deformation of the ink-receiving tray 26.
Moreover, in this embodiment, even though the ink-receiving tray 26 according to the disclosure is applied in an ink jet printer as an example of a recording apparatus, it is possible to generally apply this to other liquid ejecting apparatuses.
Here, a liquid ejecting apparatus uses an ink jet type recording head, is not limited to a recording apparatus such as a printer that performs recording on a recording medium by discharging ink from a recording head, a photocopier or a facsimile machine, and may be a device that attaches a liquid to a target ejecting medium by ejecting, instead of ink, a liquid corresponding to the purpose to the target ejecting medium corresponding to the target recording medium from a liquid ejecting head corresponding to the ink jet type recording head.
Examples of a liquid ejecting head other than the recording head include a color material ejecting head used for the manufacture of color filters such as those of liquid crystal displays, an ejecting head used for ejecting electrode materials (conductive paste) used for the formation of electrodes such as those of an organic electroluminescence (EL) display or a field effect display (FED), a bioorganic substance ejecting head used in the manufacture of biochips, and a specimen ejecting head as a precision pipette.
In addition, the disclosure is not limited to the above described embodiments, and it goes without saying that it is possible to make various modifications within the scope of the disclosure described in the claims and that these are included in the scope of the disclosure.
Number | Date | Country | Kind |
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2016-159898 | Aug 2016 | JP | national |