Packaging form for liquid discharge head

Abstract

To provide a package form which reduces the attachment of dust onto a discharge surface of a liquid discharge head.SOLUTION: A packaging form for packaging a liquid discharge head including a detachable protection member includes a protection member for covering a discharge port face of the liquid discharge head, a cushioning material which is mounted to opposite ends of the liquid discharge head in a longitudinal direction, and a bag member for packaging the liquid discharge head. The liquid discharge head, the protection member, and the cushioning material are stored in the bag member in a secured state, and hermetically closed in a pressure reduced state.SELECTED DRAWING: Figure 14

Description

[Technical field]

[0001] The present disclosure relates to a packaging form for a liquid ejection head, which is a liquid ejection head used in a liquid ejection device housed in a storage bag. [Background technology]

[0002] There are two types of liquid ejection devices: a serial scan type that performs a recording operation while moving a carriage, and a page wide type that performs a recording operation while fixing the carriage and transporting only the recording medium using a liquid ejection head having a size corresponding to the width of the recording medium. When transporting a liquid ejection head, in order to prevent damage and contamination of the print chip, a protective member that covers the entire surface of the print chip is attached to the liquid ejection head, and the liquid ejection head with the protective member attached is stored in a storage bag and placed in a cardboard box together with a cushioning material. As an example of such a storage bag, Patent Document 1 describes that a toner cartridge is stored in a storage bag with a zipper member when it is transported. After the cartridge of Patent Document 1 is stored in this bag, it is held on both the left and right sides by cushioning materials such as polystyrene foam and packed in a cardboard box. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-72781 Summary of the Invention [Problem to be solved by the invention]

[0004] However, it is required that the protective member attached to the liquid ejection head does not come off from the liquid ejection head during packaging, transportation, etc. The storage bag disclosed in Patent Document 1 does not require a protective member as in the case of a liquid ejection head in the first place, and therefore does not anticipate the protective member coming off from the liquid ejection head.

[0005] An object of the present disclosure is to provide a packaging form capable of preventing the protective member from coming off and thus preventing damage and contamination of the ejection surface of the liquid ejection head. [Means for solving the problem]

[0006] In order to achieve the above-mentioned objective, the present disclosure provides a packaging form for a liquid ejection head that packages a liquid ejection head equipped with a removable protective member, the packaging form comprising a protective member that covers the ejection outlet surface of the liquid ejection head, cushioning material attached to both longitudinal ends of the liquid ejection head, and a bag member that packages the liquid ejection head, the liquid ejection head, the protective member, and the cushioning material being stored in a fixed state within the bag member and sealed under a reduced pressure. Effect of the Invention

[0007] According to the above-mentioned configuration, the protective member is prevented from coming off, and it is possible to prevent damage and contamination of the ejection surface of the liquid ejection head. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view of a liquid ejection head according to an embodiment of the present disclosure, as viewed from below. [Diagram 2] 1 is a perspective view of a liquid ejection head according to an embodiment of the present disclosure, as viewed from above; [Diagram 3] 1 is a schematic cross-sectional view of a liquid ejection head according to an embodiment of the present disclosure. [Figure 4] 1 is a schematic cross-sectional view of a liquid ejection head according to an embodiment of the present disclosure. [Diagram 5] 1 is a schematic cross-sectional view of a liquid ejection head according to an embodiment of the present disclosure. [Figure 6] 10A to 10C are explanatory diagrams showing a procedure for removing a protective member from a liquid ejection head according to an embodiment of the present disclosure. [Figure 7] 1 is a schematic perspective view of a liquid ejection device according to an embodiment of the present disclosure with a liquid ejection head attached thereto; [Figure 8] FIG. 2 is a partial enlarged view showing one end of a liquid ejection head according to an embodiment of the present disclosure. [Figure 9] 4 is a partial enlarged view showing the other end of the liquid ejection head according to an embodiment of the present disclosure. FIG. [Figure 10] 1 is a perspective view of one end of a liquid ejection head according to an embodiment of the present disclosure, as viewed from above. [Figure 11] FIG. 2 is a perspective view of a liquid ejection head according to an embodiment of the present disclosure with cushioning materials attached to one end and the other end. [Figure 12] FIG. 2 is a perspective view of a cushioning material of a liquid ejection head according to an embodiment of the present disclosure. [Figure 13] 1A to 1C are a top view, a side view, and a cross-sectional view of a liquid ejection head 10 according to an embodiment of the present disclosure, with cushioning materials attached to one end and the other end thereof. [Figure 14] 5A and 5B are perspective views of a state in which a liquid ejection head is inserted into a bag member, and explanatory views for explaining a state in which the inside of the bag member is depressurized and sealed. [Figure 15] 1 is a perspective view of a liquid ejection head according to an embodiment of the present disclosure with a pouch member opened; [Figure 16] 11A and 11B are a perspective view and a side view of a liquid ejection head 10 with a cushioning material attached according to a second embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] (First embodiment) Hereinafter, examples of embodiments of the present disclosure will be described with reference to the drawings.

[0010] (Liquid ejection head) Fig. 1 is a perspective view of a liquid ejection head 10 according to an embodiment of the present disclosure as viewed from below, and Fig. 2 is a perspective view of the liquid ejection head 10 according to an embodiment of the present disclosure as viewed from above. Also, Figs. 3 to 5 are each a schematic cross-sectional view of the liquid ejection head 10 according to an embodiment of the present disclosure.

[0011] The liquid ejection head 10 according to an embodiment of the present disclosure is a so-called page-wide type head in which recording element substrates 100 for ejecting liquid are arranged in the longitudinal direction. As shown in Fig. 2, the liquid ejection head 10 is removably equipped with a protective member 200 in order to prevent damage or contamination of the recording element substrates and the like during transportation or when the liquid ejection head 10 is attached to or detached from an apparatus. The details of this will be described later, but with regard to the attachment and detachment of the protective member 200 to and from the liquid ejection head 10, the position where the engagement parts A1 and A2 of the protective member 200 are attached to the liquid ejection head 10 is referred to as an engagement position. Also, the position where the engagement parts A1 and A2 of the protective member 200 are located at the positions of the guide openings C1 and C2 of the liquid ejection head 10 is referred to as a release position.

[0012] As shown in FIG. 1, the liquid ejection head 10 of the present disclosure has a plurality of recording element substrates 100 arranged in a longitudinal direction (first direction X), each of which has an ejection port for ejecting liquid. The ejection surface of the liquid ejection head 10 is formed by the plurality of recording element substrates 100. A cap surface forming member 300 is formed on the ejection surface of the liquid ejection head 10 of the present disclosure so as to surround the periphery of the plurality of recording element substrates 100. The liquid ejection head 10 is provided with a pin 700a at one end of the liquid ejection head 10 in the longitudinal direction, and pins 700b and 700c at the other end. The liquid ejection head 10 is provided with a first positioning member 301 below one end of the liquid ejection head 10 in the vertical direction. The liquid ejection head 10 is further provided with a second positioning member 302 below the other end of the liquid ejection head in the vertical direction.

[0013] As shown in FIGS. 2(a) and 2(b), the protective member 200 is detachably attached to the liquid ejection head 10. With regard to the attachment and detachment of the protective member 200, the liquid ejection head 10 has two guide portions B2 and two guide openings C2 along the first direction X. The liquid ejection head 10 also has two guide portions B1 (see FIG. 3) and two guide openings C1 along the first direction X on a side other than the side shown in FIG. 1. Meanwhile, the protective member 200 has engagement portions A1 and A2 (see FIG. 3) that engage with the guide portions B1 and B2 of the liquid ejection head 10, respectively. The liquid ejection head 10 also has a fixing opening 103 for fixing the protective member 200. In the present embodiment, the liquid ejection head 10 has two guide portions and two guide openings, but is not limited to this, and may have one, or may have three or more.

[0014] In the above-described configuration for attachment and detachment, the guide portion B1 of the liquid ejection head 10 has, at one end in the first direction X, a contact portion with which the engagement portion A1 of the protection member 200 comes into contact. In addition, when the liquid ejection head 10 and the protection member 200 are fixed, the other end of the engagement portion A1 opposite to the one end in the first direction is connected to the guide opening C1 of the liquid ejection head 10.

[0015] (Protective material) The protective member 200, when attached to the liquid ejection head 10, serves to prevent damage and contamination of the recording element substrate and the like during transportation of the liquid ejection head or when the liquid ejection head is attached to and detached from an apparatus. By attaching the liquid ejection head 10 to an apparatus while the protective member 200 is still attached thereto, and then removing the protective member 200, it is possible to prevent damage and contamination of the liquid ejection head 10 during replacement work.

[0016] As shown in FIG. 3, the protective member 200 has a protective portion 200A that covers the ejection surface 100 of the liquid ejection head 10. The protective member 200 has two engagement portions A1 and A2 that can be engaged with the two guide portions B1 and B2 of the liquid ejection head 10 and have a length in the first direction X that is shorter than the length of the two guide openings C1 and C2. The protective member 200 also engages with the fixed opening 103 (see FIG. 4) of the liquid ejection head 10 at an engagement position where the two guide portions B1 and B2 of the liquid ejection head 10 engage with the two engagement portions A1 and A2. Furthermore, the protective member 200 restricts the protective member 200 from moving in the first direction X with respect to the liquid ejection head 10 at an engagement position where the two guide portions B1 and B2 of the liquid ejection head 10 engage with the two engagement portions A1 and A2. Moreover, the protective member 200 has at least one fixing portion 202 (see FIG. 4) that fixes the protective member 200 to the liquid ejection head 10.

[0017] 4, the protective member 200 includes two engagement portions A1 and A2, and a fixing portion 202 disposed in a third direction Z intersecting with the first direction X and the second direction Y. In the present embodiment, the direction intersecting with the first direction X on a plane is defined as the third direction Z, and the vertical direction is defined as the second direction Y.

[0018] As shown in FIG. 4, the fixing portion 202 has a deformable shape and can move from a fixing position (position in FIG. 4) where the fixing portion 202 engages with and fixes the fixing opening 103 to a release position (position in FIG. 5) where the fixing portion 202 is released from the liquid ejection head 10. In this embodiment, the fixing portion 202 has a protrusion 202A (see FIG. 3, etc.) on the upper side and a release portion 202B (see FIG. 3, etc.) on the lower side, and is attached so as to be rotatable (swingable) in the second direction Y. The fixing portion 202 is molded as an integral part with the protective member 200 and is supported by a rotating shaft 202C (see FIG. 6, etc.). The fixing portion 202 may be formed of a resin member such as polypropylene. In this embodiment, the fixing portion 202 is formed as an integral part with the protective member 200, but is not limited to this, and may be formed as a separate part from the protective member 200. In this case, the fixing portion 202 may be formed of a resin or metal containing a filler. Furthermore, the shape of the fixing part may be any shape that allows the protective member and the liquid ejection head to be fixed together, and the fixing part may be formed from an expandable member and have a protrusion at its tip that engages with and fixes the fixing opening 103 of the liquid ejection head.

[0019] The protective member 200 is attached to the liquid ejection head 10 by engaging the guide portion B1 with the engagement portion A1, and the guide portion B2 with the engagement portion A2, respectively, and by fixing the fixed opening 103 with the fixed portion 202 (see FIG. 4). In this embodiment, the fixed opening 103 and the fixed portion 202 are formed at the ends of the liquid ejection head 10 and the protective member 200, but are not limited to this and may be located at any position where the fixed portion 202 and the fixed opening 103 can be engaged / disengaged.

[0020] (How to remove the protective material) A method for removing the protective member 200 from the liquid ejection head 10 having the protective member 200 will be described.

[0021] 6 is a diagram showing a procedure for removing the protective member 200 from the liquid ejection head 10 according to an embodiment of the present disclosure. Regarding removal of the protective member 200 from the liquid ejection head 10, as shown in FIG. 5, the disengagement portion 202B of the fixed portion 202 is pressed and moves (rotates), which causes the protrusion 202A to move (rotate). The movement (rotation) of the protrusion 202A disengages the fixed opening 103 from the protrusion 202A. As a result, as shown in FIG. 6(a), the protective member 200 is configured to be movable in the first direction X.

[0022] Next, the fixing portion 202 is released from the fixing opening 103 by a user operation, and the protective member 200 is moved a predetermined amount in the first direction X from the engagement position to a release position where the engagement between the guide portion B1 and the engagement portion A1 is released (see FIG. 6(a)). By moving the protective member 200 in a second direction Y intersecting the first direction X, the engagement portion A1 is moved to the position of the guide opening C1 as shown in FIG. 6(b), and the protective member 200 is removed from the liquid ejection head 10.

[0023] (Liquid discharge device) FIG. 7 is a schematic perspective view of the liquid ejection head 10 attached to the liquid ejection device according to this embodiment.

[0024] The liquid ejection device includes a frame, a sphere 500 for positioning the liquid ejection head 10, and a holding section (not shown) for holding the pins 700a, 700b, and 700c of the liquid ejection head 10. The liquid ejection head 10 is detachable from the liquid ejection device, and when the liquid ejection head 10 is attached to the liquid ejection device, the pins 700a, 700b, and 700c are each held by the holding section of the liquid ejection device. The liquid ejection head 10 is then lowered onto the sphere 500, and the first positioning member 301 and the second positioning member 302 of the liquid ejection head 10 are positioned and held by the sphere 500. The liquid ejection head 10 of this embodiment ejects liquid from the recording element substrate 100 onto a recording medium transported from the downstream side in the transport direction, thereby performing recording.

[0025] FIG. 8 is a partial enlarged view showing one end of the liquid ejection head 10 according to this embodiment, and FIG. 9 is a partial enlarged view showing the other end of the liquid ejection head 10 according to this embodiment. The first positioning member 301 of the liquid ejection head 10 has a conical recess 401 facing vertically downward. The center of the conical recess of the recess 401 is centered and engaged with the sphere 500a. This allows the three-way translational degree of freedom (X / Y / Z directions in the figure) of one end of the liquid ejection head 10 to be fixed. In addition, as shown in FIG. 9, the second positioning member 302 of the liquid ejection head 10 has two tapered recesses 402 and 403. The recess 402 abuts against the sphere 500b to fix the rotation around the normal to the surface constituting the recording element substrate 100 (rotation around the Z axis) and the rotational degree of freedom around the normal to the longitudinal direction of the liquid ejection head (rotation around the X axis). The recess 403 of the second positioning member 302 engages with the sphere 500c, thereby fixing the degree of rotational freedom about the longitudinal direction of the liquid ejection head 10 (rotation around the Y-axis).

[0026] In this manner, one end and the other end of the liquid ejection head 10 can be fixed by engaging with each of the spheres.

[0027] Fig. 10(a) is a perspective view of one end of the liquid ejection head 10 according to this embodiment, as seen from above. Fig. 10(b) is a schematic cross-sectional view taken along line Xb-Xb in Fig. 10(a). The first positioning member 301 is fixed in a state in which it is disposed relative to the recording element substrate, but if the fixing method is performed by using fixing screws 404 as in this embodiment, it is necessary to restrict the Z direction.

[0028] 10(a), one end of the liquid ejection head 10 is provided with three fixing screws 404 for fixing the liquid ejection head main body 10a and the first positioning member 301, and three adjustment screws 405 for adjusting the height of the liquid ejection head 10 in the Z direction. The liquid ejection head 10 can be regulated in the X and Y directions by fixing with the screws while restricting the first positioning member 301. The liquid ejection head 10 can be regulated in the Z direction by adjusting the adjustment screws 405, and can be attached with high precision by fixing with the screws.

[0029] (Liquid ejection head packaging) Fig. 11 is a perspective view of a liquid ejection head 10 according to an embodiment of the present disclosure with cushioning materials attached to one end and the other end thereof. Fig. 12 is a perspective see-through view of the cushioning material according to an embodiment of the present disclosure.

[0030] In this embodiment, as described above, the liquid ejection head 10 is stored in a storage bag to be packaged. At this time, the protective member 200 is attached to the liquid ejection head 10. Then, the cushioning materials 600a and 600b are attached to the liquid ejection head 10 at positions that sandwich the protective member 200 and restrict removal of the protective member 200. As shown in FIG. 12, the cushioning material 600a is formed by joining a first member 601 and a second member 602 by thermal welding. The first member 601 has a first through-hole 603 having a shape corresponding to the shape of one end of the liquid ejection head 10 so as to be able to receive this one end. On the other hand, the second member 602 has a second through-hole 604 having a shape corresponding to the shape of a pin 700a protruding further from one end of the liquid ejection head 10 so as to be able to receive this pin. The second member 602 also has an abutment surface 605 facing the first through-hole 603, against which one end of the liquid ejection head 10 received in the first through-hole 603 abuts. The cushioning material 600b attached to the opposite end of the liquid ejection head 10 has the same shape as the cushioning material 600a, and is attached to the other end of the liquid ejection head 10.

[0031] The material of the buffer materials 600a and 600b may be, for example, a foam made mainly of polyethylene. This allows the two members to be joined by thermal welding. In this embodiment, a buffer material made by joining two members is used, but a buffer material that is integrally molded and has the above-mentioned through holes formed therein may also be used.

[0032] Fig. 13(a) is a top view of the liquid ejection head 10 according to this embodiment, with cushioning materials 600a and 600b attached to one end and the other end, respectively, and Fig. 13(b) is a side view thereof. Fig. 13(c) is a cross-sectional view taken along line XIIIc-XIIIc in Fig. 13(b), and Fig. 13(d) is a cross-sectional view taken along line XIIId-XIIId in Fig. 13(a).

[0033] The first buffer material 600a and the second buffer material 600b are attached so as to restrict the protection member 200 attached to the liquid ejection head 10. That is, as shown in FIG. 13(b), the buffer materials 600a and 600b are located near both ends of the protection member 200 in the longitudinal direction. Also, as shown in FIGS. 13(a) to 13(d), the range of the buffer materials 600a and 600b in the direction perpendicular to the longitudinal direction of the protection member 200 is larger than the range in which the protection member 200 exists. As a result, even if some external force acts on the liquid ejection head 10 to which the protection member 200 is attached, the external force is absorbed by the buffer materials 600a and 600b, and it is possible to prevent the external force from acting directly on the protection member 200. For example, even if the liquid ejection head 10 is dropped, the impact is absorbed by the first and second buffer materials 600a and 600b, and it is possible to prevent the impact from acting directly on the protection member 200. At the same time, even if the protective member 200 tries to come off the liquid ejection head 10, its movement is restricted by the cushioning material located nearby. Furthermore, since the pins 700a, 700b protruding from the end of the liquid ejection head 10 are stored in the cushioning materials 600a, 600b, it is possible to prevent the storage bag from being ruptured by the pin-like protrusions of the liquid ejection head 10 when it receives an impact such as being dropped. In addition to the shock absorption by the above-mentioned cushioning materials 600a and 600b themselves, this embodiment further has the following shock absorbing structure. As shown in Fig. 13(d), this embodiment is configured to form a space S between the positioning member 302 and the abutment surface 605 of the cushioning material 600b. As a result, even if the liquid ejection head is accidentally dropped in the longitudinal direction, the shock to the member 110 of the liquid ejection head is suppressed by the cushioning material. Meanwhile, since the positioning member does not come into contact with the cushioning material, it is possible to prevent the impact on the installation accuracy.

[0034] In this manner, as shown in Figs. 11 and 13, the cushioning materials 600a and 600b are disposed close to both ends of the protection member 200 in the longitudinal direction. Then, as shown in Fig. 14 described later, the bag member 800 is depressurized to be fixed to the liquid ejection head 10. Therefore, the movement of the protection member 200 in the longitudinal direction is restricted and it cannot be removed. In addition, the cushioning materials 600a and 600b are configured to cover the corners and pins at both ends of the liquid ejection head 10, so that even if an external force such as vibration or dropping is applied during transportation, the corners and pins at both ends suppress damage to the bag member. Therefore, the depressurized state of the bag member 800 is maintained, and the protection member cannot be removed.

[0035] Fig. 14(a) is a perspective view of the liquid ejection head 10 inserted into the bag member 800, and Fig. 14(b) is an explanatory diagram for explaining the state in which the inside of the bag member 800 is depressurized and sealed. Fig. 15 is a perspective view of the liquid ejection head 10 according to this embodiment with the bag member 800 opened.

[0036] The liquid ejection head 10 of this embodiment is housed in a bag member 800 as shown in FIG. 14(a). In this embodiment, the bag member 800 is a three-sided welded bag having an opening 801. The liquid ejection head 10 is inserted into the bag member 800 through the opening 801. Then, the inside of the bag member 800 is depressurized, and the opening 801 is heat-sealed to form a heat-sealed portion 802, thereby sealing the bag member 800. As shown in FIG. 14(b), the inside of the bag member 800 is depressurized to reduce the space inside the bag member 800, and the bag member 800 is in close contact with the liquid ejection head 10 and the cushioning materials 600a and 600b. As a result, the cushioning materials 600a and 600b are pressed against the liquid ejection head 10 and are substantially fixed. The cushioning materials 600a and 600b are attached close to both ends of the protection member 200 in the longitudinal direction, and are fixed to restrict the protection member 200 from sliding in the longitudinal direction. At this time, the pressure is reduced until the bag member 800 presses the cushioning material 600 against the liquid ejection head 10. The cushioning materials 600a, 600b are pressed against the liquid ejection head 10 and are substantially fixed thereto, thereby further restricting the movement of the protection member 200 in the longitudinal direction.

[0037] The protective member 200 is engaged with the liquid ejection head 10 by the fixing portion 202, but there is a risk that the engagement may loosen due to an external force or the like. In this embodiment, even if the engagement between the fixing portion 202 of the protective member 200 and the fixed opening 103 loosens, the protective member 200 can prevent the protective member 200 from falling off during transportation due to the regulation by the cushioning material 600a and the cushioning material 600b. In addition, since the cushioning material 600 has the second through-hole 604 in the longitudinal direction of the liquid ejection head 10, the air on the distal side of the bag member 800, on the opposite side to the opening 801, is also depressurized. This allows the pressure inside the bag member 800 to be reduced.

[0038] 14(b), a force F is applied to the liquid ejection head 10 together with the cushioning materials 600a and 600b due to the reduced pressure. During the reduction in pressure, the bag member 800 of the liquid ejection head 10 is easily brought into close contact with the liquid ejection head 10 and the protective member 200 without forming a large reduced pressure space between the cushioning materials at both ends, making it easier to press and fix the cushioning materials against the liquid ejection head.

[0039] The bag member 800 also has an unsealing means for unsealing at the end in the longitudinal direction. In this embodiment, the unsealing means is a notch 803, which is provided at the end side where the protective member 200 moves in the direction fixed to the liquid ejection head 10 (see FIG. 14(a)). The notch 803 acts as a trigger when opening the bag member 800, and assists in opening the bag member 800. After the bag member 800 is opened, the liquid ejection head 10 in the bag member 800 can be removed by moving the liquid ejection head (arrow C). Specifically, by unsealing the first direction (arrow X) side shown in FIG. 6, the moving direction of the liquid ejection head 10 and the removal direction of the protective member become the same as shown in FIG. 15, and the liquid ejection head can be removed without the protective member coming off. Therefore, the recording element substrate 100 can be protected even during the operation of removing the liquid ejection head 10 from the bag member 800.

[0040] Second embodiment A second embodiment of the present disclosure will be described. Explanations of functions and sequelae similar to those of the first embodiment of the present disclosure will be omitted, and differences will be described.

[0041] FIG. 16 is a perspective view and a side view of the liquid ejection head 10 and the cushioning material according to the second embodiment. In the first embodiment, the cushioning material is formed by thermally welding two members, but the present disclosure is not limited to this. As shown in FIG. 16, the cushioning material 1600 has a first member 601, a second member 602, and a third member 606. The first member 601, the second member 602, and the third member 606 are each thermally welded and joined. The third member 606 is fixed so as to cover the fixing portion 202 of the protective member 200. This allows the fixing portion 202 of the protective member to be reliably pressed against the liquid ejection head 10 in the decompressed bag member 800, and the protective member 200 to be fixed without the fixing portion 202 loosening.

[0042] (Other embodiments) The present disclosure includes configurations represented by the following examples of packaging forms for liquid ejection heads.

[0043] <Configuration 1> A packaging form for a liquid ejection head, which packages a liquid ejection head having a removable protective member, a protective member for covering an ejection port surface of the liquid ejection head; a cushioning material attached to both ends of the liquid ejection head in a longitudinal direction; a bag member for packaging the liquid ejection head; A packaging form for a liquid ejection head, characterized in that the liquid ejection head, the protection member and the cushioning material are housed in the bag member in a fixed state and are sealed under a reduced pressure state.

[0044] <Configuration 2> 2. The packaging form for the liquid ejection head according to configuration 1, wherein the protective member is moved in a longitudinal direction relative to the liquid ejection head and removed.

[0045] <Configuration 3> 3. The packaging form for the liquid ejection head according to configuration 1 or 2, wherein the cushioning material is disposed in an area that limits a movable area of ​​the protective member.

[0046] <Configuration 4> 4. The packaging form for the liquid ejection head according to any one of configurations 1 to 3, wherein the cushioning material has a through hole in the longitudinal direction of the liquid ejection head.

[0047] <Component 5> 5. The packaging form for the liquid ejection head according to configuration 4, wherein the through hole of the cushioning material has a surface that abuts against the liquid ejection head.

[0048] <Component 6> 6. The packaging form for the liquid ejection head according to configuration 4 or 5, wherein the cushioning material accommodates a protrusion portion of the liquid ejection head in the longitudinal direction within the through hole.

[0049] <Component 7> A packaging form of the liquid ejection head according to configuration 5, wherein the liquid ejection head has positioning portions at both ends in the longitudinal direction for positioning the liquid ejection head in the liquid ejection device.

[0050] <Component 8> 8. The packaging form for the liquid ejection head according to configuration 7, wherein the abutment surface of the cushioning material is configured not to abut against the positioning portion at least in the longitudinal direction.

[0051] <Component 9> 5. The packaging form for the liquid ejection head according to configuration 4, wherein the cushioning material is formed by joining at least two cushioning materials having different opening areas of the through hole.

[0052] <Component 10> 10. The packaging form for the liquid ejection head according to configuration 9, wherein the two cushioning materials are joined by thermal welding.

[0053] <Component 11> 11. The packaging form for the liquid ejection head according to any one of configurations 1 to 10, wherein the cushioning material presses an engagement portion with the liquid ejection head that restricts movement of the protective member in the longitudinal direction.

[0054] <Component 12> 12. The packaging form for the liquid ejection head according to any one of configurations 1 to 11, wherein the bag member has an opening means for opening an end portion in the longitudinal direction.

[0055] <Component 13> 13. The packaging form for the liquid ejection head according to configuration 12, wherein the opening means is provided on an end side where the protective member moves in a direction in which the protective member is fixed to the liquid ejection head. [Explanation of symbols]

[0056] 10 Liquid ejection head 200 Protective materials 600a,b buffer material 800 bags of materials

Claims

1. A packaging form for a liquid ejection head, which packages a liquid ejection head having a removable protective member, a protective member for covering an ejection port surface of the liquid ejection head; a cushioning material attached to both ends of the liquid ejection head in a longitudinal direction; a bag member for packaging the liquid ejection head; A packaging form for a liquid ejection head, characterized in that the liquid ejection head, the protection member and the cushioning material are housed in the bag member in a fixed state and are sealed under a reduced pressure state.

2. 2. The packaging method for the liquid ejection head according to claim 1, wherein the protective member is removed by moving it in a longitudinal direction relative to the liquid ejection head.

3. 3. The liquid ejection head packaging method according to claim 1, wherein the cushioning material is disposed in an area that limits a movable area of ​​the protection member.

4. 2. The packaging form for the liquid ejection head according to claim 1, wherein the cushioning material has a through hole in the longitudinal direction of the liquid ejection head.

5. 5. The packaging form for a liquid ejection head according to claim 4, wherein the through hole of the cushioning material has a surface that abuts against the liquid ejection head.

6. 5. The packaging form for the liquid ejection head according to claim 4, wherein the cushioning material accommodates a protrusion in the longitudinal direction of the liquid ejection head within the through hole.

7. 6. The liquid ejection head packaging form according to claim 5, wherein the liquid ejection head has positioning portions at both ends in a longitudinal direction for positioning the liquid ejection head in a liquid ejection device.

8. 8. The liquid ejection head packaging method according to claim 7, wherein the abutment surface of the cushioning material is configured not to abut against the positioning portion at least in the longitudinal direction.

9. 5. The liquid ejection head packaging method according to claim 4, wherein the cushioning material is formed by joining at least two cushioning materials having different opening areas of the through hole.

10. 10. The liquid ejection head packaging method according to claim 9, wherein the two cushioning materials are joined by thermal welding.

11. 2. The liquid ejection head packaging method according to claim 1, wherein the cushioning material presses an engagement portion with the liquid ejection head, the engagement portion restricting movement of the protection member in the longitudinal direction.

12. 2. The packaging form for a liquid discharge head according to claim 1, wherein the bag member has opening means for opening an end portion in the longitudinal direction.

13. 13. The packaging form for the liquid ejection head according to claim 12, wherein the opening means is provided on an end side where the protective member moves in a direction in which the protective member is fixed to the liquid ejection head.

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