WO2022172615A1

WO2022172615A1 - Recording device

Info

Publication number: WO2022172615A1
Application number: PCT/JP2021/047687
Authority: WO
Inventors: 隆二野上
Original assignee: キヤノン株式会社
Priority date: 2021-02-10
Filing date: 2021-12-22
Publication date: 2022-08-18
Also published as: JP2022122548A

Abstract

The present invention is characterized in that: a housing and a main tank include first engagement parts that can mutually engage when the main tank is attached to the housing; an engine unit and the main tank include second engagement parts that can mutually engage; the second engagement part is configured to engage at least in a removal operation in which the engine unit is removed from the housing; and in the removal operation, the first engagement part is configured to disengage upon receiving a force from the main tank that has engaged with the engine unit via the second engagement parts.

Description

recording device

The present invention relates to a liquid ink tank holding mechanism provided in a recording apparatus.

2. Description of the Related Art Conventionally, in a recording apparatus such as an inkjet printer that records an image by ejecting a liquid typified by ink onto a recording medium such as a sheet, an engine section having an image recording unit and a main tank are combined into a body of the recording apparatus. are known to be detachable from each other. In such a configuration, ink is supplied from the main tank to the engine section through a tube that connects the sub-tank and the main tank in the recording unit provided in the engine section. Therefore, when removing only the engine section from the housing section, care must be taken in handling the tube that connects the sub-tank and the main tank of the engine section. For example, if only the main tank is removed from the housing while the sub-tank is connected to the tube, the tube will be pulled and the connection with the main tank or sub-tank will be broken, and the ink in the tube will leak out and contaminate the surroundings. It may get lost. In view of such problems, Patent Literature 1 discloses a technique in which an engine section and a main tank are unitized so that they can be attached and detached integrally with respect to a housing section.

JP 2006-231654 A

Here, in a recording apparatus in which the main tank is detachably attached to the housing, there are cases where the amount of ink remaining in the main tank can be displayed outside the apparatus. In such a configuration, the main tank is engaged with the housing so that the liquid level indicator of the main tank is positioned at a predetermined position exposed to the outside of the apparatus. Considering the application of the technology disclosed in Patent Document 1 to such a configuration, when the unit in which the main tank and the engine are integrated is attached or detached, the engagement between the main tank and the housing is released. The operation is required, and there is a possibility that the attachment/detachment work of the unit will be complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a recording apparatus in which a main tank is engaged with a housing, and when the engine is replaced, the engine and the main tank can be integrated as a unit that can be easily attached to and detached from the housing. It is to provide the technology to

a housing;
an engine section that has a recording unit that includes a recording head that ejects liquid onto a recording medium and that is attachable to and detachable from the casing;
a main tank that stores a liquid and is detachable from the casing;
a supply tube for supplying the liquid from the main tank to the recording unit,
a first engaging portion that allows the housing portion and the main tank to engage with each other when the main tank is attached to the housing portion;
a second engaging portion that allows the engine portion and the main tank to engage with each other at least when the engine portion is removed from the housing portion,
The recording apparatus according to claim 1, wherein the first engaging portion releases the engagement between the housing portion and the main tank during the removing operation.

According to the present invention, in a recording apparatus in which the main tank is engaged with the housing, when the engine is replaced, the engine and the main tank can be integrated as a unit, which can be easily attached and detached from the housing. becomes.

FIG. 1 is a perspective view showing the appearance of the recording apparatus. FIG. 2 is a diagram of a state in which exterior parts of the recording apparatus are removed. FIG. 3 is a bottom view of the recording unit. FIG. 4 is a perspective view of the housing. FIG. 5 is a bottom view of the engine section. FIG. 6 is a bottom view of the main tank. FIG. 7 is a cross-sectional view when only the main tank is attached to the housing. 8A to 8C are cross-sectional views showing the operation of removing the main tank from the housing. 9A and 9B are sectional views when the engine section is attached to the housing section. FIG. 10 is a sectional view when the engine section is lifted. FIG. 11 is a perspective view when the engine section is lifted. FIG. 12 is a perspective view when the engine section is lifted.

Embodiments for carrying out the present invention will be exemplarily described in detail below based on embodiments with reference to the drawings. However, the dimensions, materials, shapes and relative arrangement of the components described in this embodiment should be appropriately changed according to the configuration of the device to which the invention is applied and various conditions. That is, it is not intended to limit the scope of the present invention to the following embodiments.

(Example)
FIG. 1 is a perspective view showing the configuration of a recording apparatus 1 according to an embodiment of the invention. The recording apparatus 1 has a rectangular parallelepiped main body 2 as a whole, a scanner unit 3 which can be freely opened and closed on the upper part of the main body 2, a touch panel display device 4 for accepting user's operations on the front, and a recording medium holding device on the lower part. A cassette feeding unit 7 for feeding paper is provided respectively.

The recording apparatus 1 is a serial type inkjet recording apparatus that records an image by ejecting ink supplied from four main tanks 20A to 20D provided on the left and right sides of the cassette feeding unit 7 in front of the apparatus onto a recording medium. is. However, the present invention can also be applied to other types of serial type recording apparatuses, and can be applied to cases where the number of main tanks is one or plural. "Recording" includes not only the formation of meaningful information such as characters and figures, but also the formation of images, patterns, patterns, etc. on recording media, or the processing of media, regardless of significance or insignificance. The case is also included, regardless of whether or not it is materialized so that humans can perceive it visually. Also, in this embodiment, sheet-like paper is assumed as the recording medium, but cloth, plastic film, or the like may be used.

The outer cover 30 of the recording apparatus 1 shown in FIG. 1 has openings 31a to 31e on the front and side surfaces thereof for displaying the liquid levels of the main tanks 20A to 20D that contain and hold the ink as the liquid used for recording. is provided. The main tank 20 and the outer cover 30 are detachable from the housing 10 of the recording apparatus 1. The main tank 20 is provided with a liquid level display section that allows the liquid level to be confirmed from the appearance. is provided with an opening through which the liquid surface is visible. Since the liquid surface of the main tank can be visually recognized by positioning each with respect to the housing part 10, the remaining amount of ink can be easily confirmed, and the appearance of the entire apparatus is improved.

FIG. 2 is a perspective view of the recording apparatus 1 according to the present embodiment, with exterior parts including the exterior cover 30, the scanner unit 3, and the display device 4 removed.

The recording apparatus 1 further detachably includes an engine section 60 and a cassette feeding unit 7 . The engine section 60 includes a feed unit 8, a transport unit 80, a recovery unit 90, a recording unit 50, and the like. A supply tube 40 is connected between the main tank 20 and the recording unit 50, and the supply tube 40 supplies ink from the main tank 20 to the recording unit 50 along a route indicated by a dotted line in the figure.

The recording apparatus 1 has two feeding routes for the recording medium, one of which is configured by the cassette feeding unit 7 and the other is configured by the feeding unit 8 . The cassette feed unit 7, the feed unit 8, and the transport unit 80 constitute a mechanism for transporting the recording medium. is sometimes called.

The cassette feeding unit 7 includes a feeding cassette 75 that is detachably attached to the bottom of the recording apparatus 1 from the front. Then, it is fed to the transport unit 80 .

The transport unit 80 is arranged downstream of the feeding unit 8 . The transport unit 80 includes transport rollers 82 extending in a direction orthogonal to the transport direction. The conveying roller 82 is rotated by the driving force of a drive source (not shown, motor in this embodiment), and conveys the recording medium conveyed from the cassette feeding unit 7 or the feeding unit 8 . A driven roller is pressed against the transport roller 82, and the recording medium is transported while being sandwiched between the transport roller 82 and the driven roller.

The recovery unit 90 is a mechanism that maintains and recovers the ink ejection performance of the recording head 52 (see FIG. 3). Recovery unit 90 includes a cap and a wiper. In the case of this embodiment, preliminary ejection and cleaning can be performed as maintenance and recovery of the ink ejection performance of the recording head 52 . Preliminary ejection is an operation of ejecting ink from the recording head 52 . The cleaning includes capping the recording head 52 with a cap and sucking ink from the recording head 52 provided in the recording unit 50 under negative pressure, and wiping the ink ejection surface of the recording head 52 with a wiper (wiping). including.

The recording unit 50 includes a drive mechanism that reciprocates the carriage 51 in a predetermined direction in order to record an image on the recording medium. The reciprocating direction of the carriage 51 is called the main scanning direction, which is perpendicular to the conveying direction of the recording medium in this embodiment. The movement of the carriage 51 is called scanning, and the recording of an image by the recording head 52 while moving the carriage 51 is sometimes called recording scanning.

The drive mechanism for reciprocating the carriage 51 includes guide rails 58 that guide the movement of the carriage 51 in the main scanning direction, and a drive source 59 (a motor in this embodiment) that transmits a driving force to the carriage 51 for main scanning. It includes a belt transmission mechanism that moves in a direction.

FIG. 3 is a perspective view of the recording unit 50 as seen from the bottom side. The carriage 51 has a recording head 52 on its bottom. A recording head 52 that ejects ink onto a recording medium includes an ink holding portion and is detachably mounted on the recording unit 50 . The recording head 52 has a plurality of ejection openings for ejecting ink, and ejects ink supplied from the main tank 20 through the supply tube 40 onto the recording medium conveyed by the conveying unit 80 to form an image. Record.

In the case of this embodiment, the recording head 52 includes a recording head 52A and a recording head 52B arranged in parallel, and the recording heads 52A and 52B eject different types of ink. For example, the recording head 52A ejects black pigment ink injected into the main tank 20A, and the recording head 52B ejects each color of dye ink injected into the

main tanks

20B, 20C, and 20D. A surface on which ink ejection ports are formed may be called an ink ejection surface, and in the case of this embodiment, the lower surfaces of the recording heads 52A and 52B are the ink ejection surfaces.

4 is a perspective view of the housing unit 10. FIG. The housing portion 10 includes housing hole portions 11a to 11d engaged with the main tanks 20A to 20D, first retaining portions 12a to 12d, and second retaining portions 13a to 13d on the front side of the recording apparatus 1. . Furthermore, housing shafts 15a to 15f for positioning the engine section 60 are provided on the right and left sides of the recording apparatus 1 from the center. In this embodiment, the housing shaft 15 has a cylindrical shape, faces the vertical direction of the housing section 10, and has a tapered portion whose tip gradually becomes thinner. Further, the housing hole portion 11 abuts on the main tank 20 vertically upward and also serves as a support portion.

FIG. 5 is a perspective view of the engine section 60 as seen from the bottom side. The engine section 60 has a printer chassis section 60R fixed on the right side of the guide rail 58 and a printer chassis section 60L fixed on the left side. Printer chassis portion 60R has engine holes 65a-c that engage housing shafts 15a-c. Printer chassis portion 60L has engine holes 65d-f, respectively, which engage housing shafts 15d-f. In this embodiment, the engine holes 65 are each formed in a circular shape or an elongated hole shape.

Further, the engine section 60 has hook engaging sections 66a-d for engaging with the main tank. A hook engaging hole portion 661 having a rectangular shape penetrates vertically through the hook engaging portions 66a to 66d.

When the engine part 60 is incorporated into the housing part 10 , the tip of the housing shaft 15 enters the engine hole 65 . When the lower surface of the engine portion 60 is in contact with the upper surface of the housing portion 10, the housing shaft 15 and the engine hole 65 are engaged and positioned.

The engine section 60 is fixed to the housing section 10 with screws (not shown) in a state where the housing shaft 15 of the housing section 10 and the engine hole 65 are engaged.

6 shows the bottom side of the main tank 20. FIG. The main tanks 20A to 20D are provided with main tank shafts 21a to 21d, first locking portions 22a to 22d, and second locking portions 23a to 23d for engaging with the housing portion 10. As shown in FIG. The main tank shaft portion 21 is arranged to protrude downward from the lower surface of the main tank 20, has a cylindrical shape extending in the vertical direction, and has a tapered portion at the tip.

Further, the main tanks 20A-D are provided with hook portions 26a-26d for engaging with the engine portion 60. The hook portion 26 has a hook shape formed by forming a prism into an L shape. Configured. The hook tip portion 261 has a tapered portion at its tip.

The first engaging portion 22 and the hook portion 26 are provided on the side facing the engine portion 60 in the main tank 20, and the second engaging portion 23 is provided on the opposite side.

FIG. 7 is a cross-sectional view of the recording apparatus 1 when the main tank 20D is attached to the housing section 10. FIG. The cross section is taken so as to pass through the center of the main tank shaft portion 21d, and the

main tanks

20A, 20B and 20C also have a similar mounting configuration.

In this embodiment, the main tank shaft portion 21 and the housing hole portion 11, the first locking portion 22 and the first retaining portion 12, the second locking portion 23 and the second retaining portion 13 are Each is engageable with each other. These engaging portions that engage the main tank 20 and the housing portion 10 are collectively referred to as first engaging portions.

Here, the first locking portion 22 and the first retainer portion 12 have a so-called snap-fit structure that can be elastically deformed, and can be deformed from the non-restricted position to the restricted position by elastic deformation. On the other hand, the second locking portion 23 has a projection shape, and when engaged with the second retaining portion 13, the engagement is not released even if force is applied to the engaging portion. Both the first retaining portion 12 and the second retaining portion 13 contact (support) the main tank 20 in the vertically downward direction, and the housing hole portion 11 in the vertically upward direction. is vertically clamped.

8A to 8C are cross-sectional views of the recording apparatus 1 showing step by step the movement when the main tank 20 is removed from the housing 10. FIG. The cross section is taken through the center of the main tank shaft portion 21d as in FIG.

First, as shown in FIG. 8A, the main tank 20 is positioned and fixed with respect to the housing 10 by engagement of the first engagement portion. That is, the main tank shaft portion 21 and the housing hole portion 11 are vertically fitted between the main tank 20 and the housing portion 10 . In addition, the first locking portion 22 and the first retaining portion 12 provided on the side closer to the engine portion 60 (second engaging portion), and the The second retaining portion 23 and the second retaining portion 13 provided on the side are respectively retained.

When the replacement operator lifts (pulls up) the engine section 60 from the housing section 10 , a force acts on the main tank 20 so that the main tank 20 engaged with the engine section 60 is also lifted from the housing section 10 . do. The first retaining portion 12 is elastically deformed from a regulating position that restricts the removal of the main tank 20 to a non-restricting position that does not restrict the removal of the main tank 20 under the force received from the lifted main tank 20 . That is, the first retaining portion 12 has an elastically deforming portion extending upward in the vertical direction with the lower end side being a fixed end fixed to the housing portion 10, and a main tank and a restricting portion provided to protrude toward the mounting space side of 20 . The elastically deformable portion has a cantilever structure that extends upward in the vertical direction in the housing portion 10, and when the restricting portion receives force from the main tank 20, the tip side recedes from the installation space of the main tank 20. side, and changes from the regulated state to the non-regulated state. On the other hand, the second retaining portion 13 is firmly provided with respect to the first retaining portion 12 so that the restrained state is maintained even when receiving force from the main tank 20 . Therefore, the main tank 20 is deformed so that the first locking portion 22 pushes away the first locking portion 12 with the second locking portion 23 locked to the second locking portion 13 as a fulcrum. is released from the restricted position by the first retaining portion 12 (disengagement). Then, a posture change occurs in which the first engaging portion 22 side is inclined to be positioned higher than the second engaging portion 23 side.

FIG. 8B shows the state after the disengagement described above. Here, since the tip of the main tank shaft portion 21 has a tapered shape, the attitude change of the main tank 20 described above is allowed.

After that, as shown in FIG. 8C, the engagement of the first locking portion 22 with the first retainer portion 12 is released, so that the main tank shaft portion moves along with the movement to be lifted. 21 is completely removed from the housing hole portion 11 . Then, the posture is further changed so that the second locking portion 23 is pulled out of the second retaining portion 13 . As a result, the main tank 20 is removed from the housing 10 .

Although the details will be described later, the engagement structure of the second locking portion 23 is a loose fit structure that allows the posture change of the main tank 20 described above. Also, when the main tank 20 is attached to the housing portion 10, it is possible to engage the respective engaging portions in the order opposite to that described above.

The specific engagement configuration of the first engagement portion is not limited to the configuration described above. For example, the second retaining portion 13 may be a snap-fit type retaining portion similar to the first retaining portion 12 . In addition, the structure for releasing the restriction by elastic deformation may not be a snap-fit type. It may be configured such that it is elastically retracted.

9A and 9B are cross-sectional views of the recording device 1 when the engine section 60 is attached to the housing section 10. FIG. The cross section is taken through the center of the hook portion 26d and the hook engaging portion 66d, and the

main tanks

20A, 20B and 20C also have a similar mounting structure.

FIG. 9A shows a cross-sectional view of the recording apparatus 1 when only the engine section 60 is attached to the housing section 10. FIG. The engine section 60 is fixed to the housing section 10 with screws (not shown) in a state where the housing shaft 15 of the housing section 10 and the engine hole 65 are engaged.

FIG. 9B shows a sectional view of the recording apparatus 1 when the engine section 60, the main tank 20 and the supply tube 40 are attached to the housing section 10. FIG. The main tank 20 and the engine section 60 are arranged horizontally with respect to the housing section 10 .

A second engaging portion that engages the main tank 20 and the engine portion 60 is composed of the hook portion 26 provided on the main tank 20 and the hook engaging portion 66 provided on the engine portion 60. . The hook portion 26 has a hook body portion 262 that extends substantially horizontally toward the engine portion 60 side, and a hook tip portion 261 that bends and protrudes downward from the tip of the hook body portion 262 in a hook shape. The hook engaging portion 66 has a hook engaging hole portion 661 into which the hook tip portion 261 is inserted from above. In a state in which the main tank 20 and the engine section 60 are attached to the housing section 10, the hook tip section 261 is configured to be accommodated inside the hook engaging hole section 661 so as not to come into contact with the inner peripheral surface thereof. . Further, in the same state, the hook body portion 262 is configured to be separated (separated upward) from the peripheral edge portion 662 of the upward opening of the hook engaging hole portion 661 in the hook engaging portion 66 .

When the engine portion 60 is lifted from the housing portion 10, the hook tip portion 261 engages with the inner peripheral surface of the hook engagement hole portion 661, the hook body portion 262 engages with the peripheral edge portion 662, and the second engagement is achieved. A joint engagement is formed. The hook tip portion 261 and the hook engaging hole portion 661 form a first restricting portion that restricts the relative position between the main tank 20 and the engine portion 60 in the substantially horizontal direction in the second engaging portion. Further, the hook body portion 262 and the peripheral edge portion 662 form a second restricting portion that restricts the relative position between the main tank 20 and the engine portion 60 in the substantially vertical direction at the second engaging portion.

Here, a predetermined gap is provided between the hook tip portion 261 and the hook engaging hole portion 661 so as to allow a change in posture of the main tank 20 when the first engaging portion is disengaged. They are fitted (loosely fitted), and the tip of the hook tip portion 261 is tapered.

Although the hook engaging hole portion 661 is configured as a through hole in this embodiment, it may be a hole shape with a closed opening on the lower side.

When the main tank 20 and the engine section 60 are attached to the housing section 10, the second engaging section is not engaged. That is, as shown in FIG. 9B, both the first restricting portion and the second restricting portion have a gap and are not in contact with each other. Depending on this configuration, since there is a gap between the surfaces facing each other in the vertical direction, the load due to the weight of the main tank 20 is not applied to the engine section 60, and deformation of the engine section 60, and thus the performance of the recording apparatus 1, is prevented. The effect of preventing deterioration is also expected.

When the exterior cover 30, the scanner unit 3 and the display device 4 are assembled in this state, the recording device 1 shown in FIG. 1 is in a product state.

In this embodiment, when the main tank 20 and the engine section 60 are attached to the housing section 10, the second engaging section is in a non-contact, non-engaging state. is not limited to For example, when the main tank 20 and the engine section 60 are attached to the housing section 10, there is no problem even if the first restricting section is in contact with the engine section 60. Any configuration that does not apply a load due to the weight of the main tank 20 may be employed.

FIG. 10 is a cross-sectional view of the recording apparatus 1 when the engine section 60 is removed from the housing section 10 and lifted. 11 is a perspective view of the recording apparatus 1 when the engine section 60 is removed from the housing section 10 and lifted.

For removal, first remove the screws (not shown) that secure the engine section 60 to the housing section 10 .

After that, by lifting the engine section 60 in the direction of the arrow Z, the gap of the first restricting section is filled, the vertical position is restricted, and the main tank 20 is moved by its own weight around the second locking section 23 as a fulcrum. Posture changes. Then, the hook tip portion 261, which is the second restricting portion, and the hook engaging hole portion 661 are brought into contact with each other to restrict the position in the horizontal direction. With this configuration, the position of the main tank 20 with respect to the engine section 60 is regulated by engaging the second engaging portion. Since the force received from the engine section 60 induces the attitude change of the main tank 20, the first engagement section is released in the order shown in FIGS. 8A to 8C.

Further, the housing shaft 15 is also removed from the engine hole 65, and the engine section 60 and the main tank 20 can be removed from the housing section 10 together.

With this mechanism, the engine section 60 and the main tank 20 can be removed together from the housing section 10 while the supply tube 40 is connected.

In this embodiment, after disengaging the first engaging portion in advance, the engine portion 60 is lifted, the second engaging portion is engaged, and the engine portion 60 and the main tank 20 are separated. It is also possible to take a working procedure to remove them all together.

With the above-described configuration, the main tank 20 and the housing 10 are engaged with each other in the product state, so that the liquid level display provided in the main tank 20 is accurately positioned in the housing, and the aesthetic appearance is maintained. Assembled in condition. Furthermore, when the engine part 60 is replaced, if the main tank 20 is released from the housing part 10, the main tank 20 and the engine part 60 can be removed integrally with the supply tube 40 connected, so that the ease of replacement is enhanced.

FIG. 12 is a perspective view of another embodiment of the recording device 1. FIG. A specific configuration of the engine section 60 is not limited to the configuration of the embodiment described above. For example, as shown in the perspective view of FIG. 12, an example in which the engine section 60 has a minimum configuration of only parts around the recording unit 50 is given.

The present disclosure is not limited to the embodiments described above, and various modifications and variations are possible without departing from the spirit and scope of the present disclosure. Accordingly, the following claims are appended to publicize the scope of the disclosure.
This application claims priority based on Japanese Patent Application No. 2021-019854 filed on February 10, 2021, the entire contents of which are incorporated herein.

DESCRIPTION OF SYMBOLS 10... Case part 11... Case hole 12... First retaining part 13... Second retaining part 15... Case shaft 20... Main tank 21... Main tank shaft 22... Second 1 locking portion 23 second locking portion 26 hook portion 40 supply tube 50 recording unit 60 engine portion 65 engine hole 66 hook engaging portion

Claims

a housing;
an engine section that has a recording unit that includes a recording head that ejects liquid onto a recording medium and that is attachable to and detachable from the casing;
a main tank that stores a liquid and is detachable from the casing;
a supply tube for supplying the liquid from the main tank to the recording unit,
a first engaging portion that allows the housing portion and the main tank to engage with each other when the main tank is attached to the housing portion;
a second engaging portion that allows the engine portion and the main tank to engage with each other at least when the engine portion is removed from the housing portion,
The recording apparatus according to claim 1, wherein the first engaging portion releases the engagement between the housing portion and the main tank during the removing operation.
The first engaging portion is disengaged by receiving force from the main tank engaged with the engine portion by the second engaging portion during the removal operation. 2. The recording apparatus according to claim 1, wherein:
3. The recording apparatus according to claim 1, wherein the second engaging portion does not engage when the engine portion and the main tank are attached to the housing portion.
The second engaging portion is in an engaged state in which the engine portion does not receive a vertical load from the main tank when the engine portion and the main tank are attached to the housing portion. 3. The recording apparatus according to claim 1 or 2, characterized by:
5. The recording apparatus according to claim 3, wherein the engine section and the main tank are arranged horizontally with respect to the housing section via the second engaging section.
The second engaging portion is
a hook portion provided in the main tank and configured by a hook body portion extending in the horizontal direction and a hook tip portion extending vertically downward from the tip of the hook body portion;
a hook engaging portion that engages with the hook portion provided in the engine portion;
The hook engaging portion has a hook engaging hole formed in a vertical direction in which the tip of the hook is accommodated when the main tank and the engine are attached to the housing,
The hook tip portion and the hook engaging hole portion constitute a first restricting portion that restricts the horizontal position of the main tank with respect to the engine portion,
The surfaces of the hook body portion and the hook engaging portion that face each other in the vertical direction constitute a second restricting portion that restricts the position in the vertical direction,
In a state where the main tank and the engine section are attached to the housing section, the second restricting section has a configuration in which a gap is formed,
6. A recording apparatus according to claim 5, wherein said gap is filled in said removing operation for removing said engine portion from said housing portion.
The second engaging portion functions as the first restricting portion in a state where the main tank and the engine portion are attached to the housing portion, and forms a gap in the extending direction of the hook body portion. have
7. A recording apparatus according to claim 6, wherein a gap of said first restricting portion is filled by changing the posture of said main tank during said removing operation.
the first engaging portion includes a plurality of retaining portions provided on the housing portion for regulating the vertical position of the main tank with respect to the housing portion;
The plurality of retainer portions are configured to be elastically deformable from a restricted position to a non-restricted position by force received from the main tank engaged with the engine portion by the second engaging portion during the removal operation. 8. The recording apparatus according to any one of claims 5 to 7, further comprising a first retaining portion that is formed with a tapered portion.
The plurality of retaining portions further include a second retaining portion that guides a change in posture of the main tank in a direction that elastically deforms the first retaining portion from the restricted position to the non-restricted position,
9. A recording apparatus according to claim 8, wherein said second retaining portion is provided at a position farther from said second engaging portion than said first retaining portion.
The first engaging portion further includes a support portion provided in the housing portion, abutting upward in the vertical direction with respect to the main tank, and having a housing hole portion opening upward,
The plurality of retainer portions provided in the housing portion are in contact with the main tank downward in the vertical direction,
10. A recording apparatus according to claim 8, wherein said plurality of retaining portions and said supporting portion are engaged so as to sandwich said main tank in the vertical direction.
The first engagement portion includes the support portion, and a shaft portion that is provided in the main tank and engages with the housing hole and protrudes downward in the vertical direction,
11. A recording apparatus according to claim 10, wherein said shaft portion has a tapered tip so as to allow a change in attitude of said main tank.
having an exterior cover positioned on the housing and having an opening through which the main tank can be viewed;
The main tank has a liquid level display section that allows the liquid level to be confirmed on the outside,
When the main tank is attached to the housing, the liquid surface can be confirmed through the opening, and the first engaging portion is engaged so that the liquid surface of the main tank is horizontal. 12. The recording apparatus according to any one of claims 1 to 11, characterized in that: