JP6954058B2 - Liquid discharge head protection member, liquid discharge head and liquid discharge unit - Google Patents

Description

The present invention relates to a liquid discharge head protection member, a liquid discharge head provided with the liquid discharge head protection member, and a liquid discharge unit.

As an image forming apparatus such as a printer, for example, an apparatus having a liquid ejection head or a liquid ejection unit and driving the liquid ejection head to eject a liquid (for example, an inkjet recording apparatus) is known.

The liquid discharge head includes a nozzle that discharges a liquid, a flow path plate provided with an individual liquid chamber that communicates with the nozzle and stores the liquid, and a pressure generating means (driving means or energy generating means) that pressurizes the liquid in the individual liquid chamber. Means) and a common liquid chamber substrate provided with a common liquid chamber for storing the liquid until it flows through the flow path plate, and by driving the pressure generating means, the ink in the individual liquid chambers is pressurized and discharged from the nozzle. Ink droplets are ejected and landed on a recording medium.

In the liquid ejection head of an inkjet recording device, ink droplets are ejected from fine nozzle holes (hereinafter referred to as "ejection ports"), which is caused by thickening or sticking of ink due to drying, or air bubbles generated in the ink. As a result, the discharge port may be clogged, resulting in poor discharge.

On the other hand, in order to prevent the discharge port from drying out and dust from adhering to the discharge port, a technique of covering the discharge surface (nozzle surface) with a cap or the like to moisturize and protect the discharge port is already known.

In addition, when the liquid discharge head is removed from the inkjet recording device for primary storage, when the stored product is reattached for use, or when the liquid is transported in the removed state, contamination by foreign matter such as dust is contaminated. In addition, the discharge quality may deteriorate due to damage caused by impact.

On the other hand, a storage container for an inkjet recording head has been proposed to prevent the printing performance of the recording head from deteriorating during temporary storage or storage during market distribution (see, for example, Patent Document 1).

Patent Document 1 provides a liquid discharge head protection assembly capable of protecting the discharge port and a method for protecting the liquid discharge head, and a seal made of an acrylic adhesive on the face surface (discharge surface) of the liquid discharge port. The liquid discharge head is stored in a storage box made of conductive polystyrene after being brought into close contact with the liquid, and further placed in an aluminum bag and sealed to store the liquid discharge head.

However, when the discharge surface (nozzle surface) is covered with a member such as a seal, there is a problem that the seal member is immediately peeled off due to the water-repellent finish applied to the discharge surface.
When another protective member is used in combination in order to ensure the ease of peeling of the seal member, there is a problem that the number of parts is increased.
Further, when stored as a liquid discharge unit, it is preferable to protect other openings (for example, ink supply ports) that communicate with the discharge port, but in order to protect these, a plurality of openings corresponding to different protection targets are used. It is necessary to prepare a protective member, which also has a problem of increasing the number of parts.

Therefore, the present invention provides a liquid discharge head protection member capable of reliably protecting at least a plurality of protection targets including the discharge port of the liquid discharge head with a single member and preventing the occurrence of discharge defects during use. The purpose is to provide.

In order to achieve such an object, the liquid discharge head protection member according to the present invention includes a plurality of discharge ports for discharging liquid, a liquid chamber communicating with the plurality of discharge ports, and a supply of liquid to the liquid chamber or the above. A liquid discharge head protection member mounted on a liquid discharge head including at least a connecting member for recovering liquid from the liquid chamber, wherein the liquid discharge head protection member protects the discharge port. It has a portion, a connecting member protecting portion that protects the connecting member, and a connecting portion that integrally connects the discharge port protecting portion and the connecting member protecting portion, and the connecting portion has flexibility. The connecting portion is bent and attached to the liquid discharge head to protect the discharge port and the connecting member, and the discharge port protection portion is at least a side surface and a discharge surface having the discharge port of the liquid discharge head. A liquid discharge head protection member which is a cap-shaped member that partially covers the liquid discharge head, has at least one pair of protrusions facing each other on the inner side surface, and sandwiches the side surface of the liquid discharge head by the protrusions. Is.

According to the present invention, a plurality of protected objects including at least the discharge port of the liquid discharge head can be reliably protected by a single member, and a liquid discharge head protection member capable of preventing the occurrence of discharge defects during use. Can be provided.

It is a plane explanatory view of the main part which shows an example of the liquid discharge apparatus provided with the liquid discharge head of this embodiment. It is a side side explanatory drawing of the main part which shows an example of the liquid discharge apparatus provided with the liquid discharge head of this embodiment. It is a perspective view which shows an example of a liquid discharge unit. It is explanatory drawing which shows an example of protection of the conventional liquid discharge head. It is explanatory drawing which shows an example of protection of the conventional liquid discharge head. It is a figure which shows an example of the liquid discharge head protection member of this embodiment, (A) and (B) are the side view of the mounted state, (C) is the side view, (D) is the top view, (E). Is a partial perspective view of the mounted state. It is a figure which shows an example of the liquid discharge head protection member of this embodiment, (A) and (B) are the side view of the mounted state, (C) is the side view, (D) is the top view, (E). Is a partial perspective view of the mounted state. It is a figure which shows an example of the liquid discharge head protection member of this embodiment, (A) and (B) are the side view of the mounted state, (C) is the top view. It is a figure which shows an example of the liquid discharge head protection member of this embodiment, (A) and (B) are the side view of the mounted state, (C) is the top view, (D) is the part in the mounted state. It is a perspective view. It is explanatory drawing which shows an example of the state which the liquid discharge unit which attached the liquid discharge head protection member of this embodiment is housed in a storage container. It is explanatory drawing which shows an example of the packaging form of the liquid discharge unit housed in a storage container.

Hereinafter, the liquid discharge head protection member, the liquid discharge head, and the liquid discharge unit according to the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments shown below, and can be modified within the range conceivable by those skilled in the art, such as other embodiments, additions, modifications, and deletions. However, as long as the action and effect of the present invention are exhibited, it is included in the scope of the present invention.

The liquid discharge head to which the liquid discharge head protection member of the present embodiment is mounted includes a plurality of discharge ports for discharging liquid, a liquid chamber communicating with the plurality of discharge ports, and supply of liquid to the liquid chamber or the above. At least a connecting member for recovering the liquid from the liquid chamber is provided.
The liquid discharge head protective member is removable and is removed when the liquid discharge head is used.

A device including the liquid discharge head in a state where the liquid discharge head protection member is removed will be described.
1 and 2 show a serial-type inkjet recording device (printer) as an example of a device for discharging a liquid, FIG. 1 is a side explanatory view of a mechanism portion, and FIG. 2 is a main part plane of the mechanism portion. It is explanatory drawing.

In the printer of the present embodiment, the carriage 433 is held reciprocally in the main scanning direction (arrow direction) by the master-slave guide rods 431 and 432 laid horizontally on the left and right side plates 421A and 421B. The carriage 433 has two liquid discharge units 430A and 430B in which a liquid discharge head 434 as a liquid discharge member and a head tank 435 which is a sub tank for supplying liquid ink to the liquid discharge head 434 are integrated. It is installed. The liquid discharge head 434 is mounted with the nozzle arrangement direction of the nozzle array consisting of a plurality of nozzles (discharge holes) set to the sub-scanning direction (longitudinal direction of the liquid discharge head) orthogonal to the main scanning direction, and the liquid discharge direction is directed downward. Has been done.

The liquid discharge head 434 of the present embodiment has two nozzle rows. One nozzle row of the liquid discharge head 434 of one liquid discharge unit 430A ejects black (K) ink, and the other nozzle row ejects cyan (C) ink. Further, one nozzle row of the liquid discharge head 434 of the other liquid discharge unit 430B ejects magenta (M) ink, and the other nozzle row ejects yellow (Y) ink. Here, although the configuration is such that two liquid ejection heads are used to eject four colors of ink (liquid), four nozzle rows are arranged on one liquid ejection head, and one liquid ejection head is used. It is also possible to eject four colors of ink from the ink.

The main tanks 410k, 410c, 410m, 410y, which are liquid cartridges of each color, are detachably attached to the cartridge holder 404 on the apparatus main body side. Then, ink of each color is sent from the main tank 410 of each color to the head tank 435 of each liquid discharge unit 430A and 430B by the liquid feeding unit 424 including the liquid feeding pump via the supply tube 436 of each color.

Further, in the printer according to the present embodiment, as a paper feeding unit for feeding the paper 442, which is a discharge member loaded on the paper loading unit 441 of the paper feeding tray 402, the paper 442 is 1 from the paper loading unit 441. It is provided with a paper feed roller 443 that separates and feeds sheets one by one and a separation pad 444 that faces the paper feed roller 443. Further, the printer according to the present embodiment also includes a guide 445 for transporting and guiding the fed paper 442, a counter roller 446, a transport guide member 447, and a pressing member 448 having a tip pressure roller 449. Further, the printer according to the present embodiment is provided with a transport belt 451 which is a transport means for sucking the transported paper 442 and transporting it at a position facing the liquid discharge head 434 of the liquid discharge unit 430.

The transport belt 451 is an endless belt, which is hung between the transport roller 452 and the tension roller 453 and is configured to circulate in the belt transport direction (sub-scanning direction). As the transport belt 451, an electrostatic transport belt charged by a charging roller 456, which is a charging means, is used. However, the transport belt 451 may be a transport belt that is adsorbed by air suction. Further, as the conveying means, the conveying means may be one that is conveyed by a roller without using a conveying belt.

On the downstream side of the tension roller 453 around which the transport belt 451 is hung, a separation claw 461 for separating the paper 442 from the transport belt 451, a paper ejection roller 462 and a paper ejection roller 463 are provided, and the paper ejection roller 462 is provided. A paper ejection tray 403 is provided below. Further, a double-sided unit 471 is detachably attached to the back surface of the apparatus main body. The double-sided unit 471 takes in the paper 442 returned by the reverse rotation of the transport belt 451, reverses it, and feeds it again between the counter roller 446 and the transport belt 451. Further, the upper surface of the double-sided unit 471 is a manual feed tray 472. Further, in the non-printing area on one side of the carriage 433 in the scanning direction, a maintenance / recovery mechanism 481 for maintaining and recovering the state of the nozzles of the liquid discharge heads 434 of the liquid discharge units 430A and 430B is arranged.

The maintenance / recovery mechanism 481 includes caps 482a and 482b for capping the discharge surface (nozzle surface) of the liquid discharge head 434. Further, the maintenance / recovery mechanism 481 includes a blade member 483 for wiping the discharge surface (nozzle surface). Further, the maintenance / recovery mechanism 481 includes an empty ejection receiver 484 that receives ink when performing blank ejection to eject ink that does not contribute to image formation in order to eject thickened ink. Further, in the non-printing area on the other side of the carriage 433 in the scanning direction, an empty ejection receiver 488 that receives ink when blank ejection is performed during image formation or the like is arranged. The empty discharge receiver 488 is provided with an opening 489 or the like along the nozzle arrangement direction of the liquid discharge head 434.

In the printer according to the present embodiment, the paper 442 is separately fed from the paper feed tray 402 one by one, and the paper 442 fed substantially vertically upward is guided by the guide 445, and the transport belt 451 and the counter roller 446 It is sandwiched between the two and transported. Further, the tip of the paper 442 is guided by the transport guide 437 and pressed against the transport belt 451 by the tip pressurizing roller 449, and the transport direction is changed by approximately 90 °. Then, when the paper 442 is fed onto the charged transport belt 451, the paper 442 is attracted to the transport belt 451 and the paper 442 is transported in the sub-scanning direction by the orbital movement of the transport belt 451. Therefore, by driving the liquid discharge heads 434 of the liquid discharge units 430A and 430B in response to the image signal while moving the carriage 433, ink is discharged to the stopped paper 442 and an image for one line is recorded. .. Then, after the predetermined amount of the paper 442 is conveyed, the image of the next line is formed. When the recording end signal or the signal that the rear end of the paper 442 reaches the recording area is received, the recording operation is ended and the paper 442 is discharged to the paper output tray 403.

The device for discharging the liquid is not limited to the above-mentioned printer, and is not particularly limited as long as it is a device including a liquid discharge head or a liquid discharge unit and driving the liquid discharge head to discharge the liquid. Further, the device for discharging the liquid includes not only a device capable of discharging the liquid to a device to which the liquid can adhere, but also a device for discharging the liquid toward the air or the liquid.
The "material to which the liquid can adhere" means a material to which the liquid can adhere at least temporarily, such as one that adheres and adheres, and one that adheres and permeates. Specific examples include paper, recording paper, recording paper, film, recording media such as cloth, electronic substrates, electronic components such as piezoelectric elements, powder layers (powder layers), organ models, and media such as inspection cells. Yes, including anything to which the liquid adheres, unless otherwise specified.
The materials of "materials to which liquid can adhere" are paper, thread, fiber, cloth, leather, metal, plastic, glass, wood, ceramics, building materials such as wallpaper and flooring, and textiles for clothing, even if the liquid is temporary. Anything that can be attached may be used.
The "liquid" also includes inks, treatment liquids, DNA samples, resists, pattern materials, binders, modeling liquids, or solutions and dispersions containing amino acids, proteins, and calcium.

The liquid discharge unit 430 includes a head tank for storing the liquid to be supplied to the liquid discharge head 434, a carriage for mounting the liquid discharge head 434, a supply mechanism for supplying the liquid to the liquid discharge head 434, and maintenance and recovery of the liquid discharge head 434. There is a maintenance / recovery mechanism to be performed, at least one of the main scanning movement mechanisms for moving the liquid discharge head 434 in the main scanning direction, and a liquid discharge head 434 integrated.
In addition, the integration with the supply mechanism can be realized in the state where the liquid discharge head protection member 16 is removed in the present embodiment.

A perspective view of the liquid discharge unit 430 in the printers of FIGS. 1 and 2 is shown in FIG.
The liquid discharge units 430A and 430B shown in FIG. 2 have the same structure, and both of them are hereinafter simply referred to as “liquid discharge unit 430”.

A supply tube 436 connected to the main tank 410 on the printer main body side is connected to a connecting member 439 of the liquid discharge head 434 constituting the liquid discharge unit 430 with the liquid supply mechanism.
The ink supplied from the connection port of the connecting member 439 via the supply tube 436 is supplied to the liquid chamber communicating with each discharge port 11a of the discharge surface 11 through the flow path in the flow path component. ..

As shown in FIG. 3, a head connector portion 438 to which a relay cable for transmitting a drive signal or the like from the printer main body side to the liquid discharge head 434 is connected is provided above the liquid discharge unit 430.

The liquid discharge head 434 includes a discharge port, a flow path plate provided with an individual liquid chamber communicating with the discharge port, a pressure generating means for pressurizing the liquid in the individual liquid chamber, and until the liquid flows through the flow path plate. It is provided with a common liquid chamber substrate provided with a common liquid chamber for storage. By driving the pressure generating means, the liquid in the individual liquid chamber is pressurized, and the droplets are discharged from the discharge port.

Examples of the pressure generating means include a piezoelectric element. Specifically, the diaphragm in the liquid discharge head 434 is displaced by driving the piezoelectric element in response to the drive signal input from the printer main body side via the relay cable connected to the head connector portion 438. .. As a result, the pressure in the liquid chamber rises, and ink is ejected through the discharge port communicating with the liquid chamber.

The pressure generating means of the liquid discharge head 434 is not limited. For example, in addition to the piezoelectric actuator (which may use a laminated piezoelectric element) as described in the above embodiment, it is composed of a thermal actuator using an electrothermal conversion element such as a heat generating resistor, a vibrating plate, and a counter electrode. An electrostatic actuator or the like may be used.

[Protection of liquid discharge head]
In the liquid discharge head 434, a plurality of discharge ports 11a are arranged on the discharge surface 11. Since the plurality of discharge ports 11a and the connection ports of the connecting member 439 communicate with each other via the liquid chamber, the liquid flow path in the liquid discharge head 434 becomes dusty when the liquid discharge unit 430 is transported, stored, and mounted. Deterioration may occur due to contamination by foreign matter such as, or damage to the liquid discharge head 434. In particular, damage to the discharge surface 11 causes chipping of the discharge port and peeling of the water repellent agent, leading to deterioration of discharge quality during use.

The conventional method of protecting the liquid discharge head is shown in FIGS. 4 and 5.
FIG. 4 shows a method of bringing the seal 12 into close contact with the discharge surface 11 of the liquid discharge head 434 constituting the liquid discharge unit 430. A pressure-sensitive adhesive (for example, an acrylic pressure-sensitive adhesive) is applied to the surface of the seal 12 that comes into contact with the discharge surface 11.
In this method, there is a problem that the adhesive of the seal 12 is transferred to the discharge surface 11 by bringing the seal 12 into close contact with the discharge surface 11, and the transferred adhesive closes the discharge port 11a. As a result, a discharge defect may occur when the liquid discharge head is used.

FIG. 5 shows a method of covering the discharge surface 11 of the liquid discharge head 434 constituting the liquid discharge unit 430 with the cover member 14 and sealing the connection port of the connection member 439 with the tube 13. As shown in the side view of FIG. 5B, the cover member 14 has a portion protruding inward and is fixed so as to sandwich the housing 15.
However, since the cover member 14 is easily removed, sufficient protection may not be obtained. Further, the tube 13 is a separate member, and a plurality of protective members corresponding to different protection targets are used, which causes complexity in manufacturing, management, and operation.

On the other hand, in the present embodiment, the liquid discharge head 434 is protected by the liquid discharge head protection member 16 shown in FIGS. 6 to 9. Hereinafter, each embodiment will be described.
6A and 6B are views showing a first example of the liquid discharge head protection member 16 of the present embodiment, where (A) and (B) are side views in a mounted state, (C) is a side view, and (D). Is a top view, and (E) is a partial perspective view of the mounted state.
As shown in FIG. 6, the liquid discharge head protection member 16 includes a discharge port protection unit 16c that protects the discharge port, a connection member protection unit 16a that protects the connection member 439, a discharge port protection unit 16c, and a connection member protection unit. It has a connecting portion 16b that integrally connects the 16a.
The liquid discharge head protection member 16 has flexibility, and the connecting portion 16b is bent and mounted.

The liquid discharge head protective member 16 is not particularly limited as long as the connecting portion 16b is made of a bendable and flexible material.
Further, it is preferable that at least the discharge port protection portion 16c is composed of an elastic member, and examples of the material constituting the elastic member include silicon.
Further, in protecting the liquid discharge protection unit filled with ink in advance, it may be made of PP material from the viewpoint of liquid contact resistance.

As shown in FIGS. 6 (A), 6 (B) and 6 (E), the liquid discharge head protection member 16 has a connecting portion 16b bent approximately 180 degrees and is connected to the opening surface of the discharge port protection portion 16c. It is mounted in a direction in which the opening surface of the member protection portion 16a faces the opening surface.

Further, it is preferable that the connecting portion 16b of the liquid discharge head protecting member 16 has a slack at the crease portion in the mounted state.
By designing the connecting portion 16b so as to have a slack when mounted, the operation for covering the connecting member 439 with the connecting member protecting portion 16a becomes easy.

The liquid discharge head protection member 16 may be a member in which the discharge port protection portion 16c and the connection member protection portion 16a are integrally connected by the connecting portion 16b, depending on the form of the liquid discharge unit 430 to be mounted. It can be designed as appropriate.
In the example of FIG. 6, the connection member protection portions 16a of the liquid discharge head protection member 16 are provided at both ends in the longitudinal direction of the liquid discharge head protection member 16 so as to cover the openings of the connection members 439 provided on both sides in the longitudinal direction. It is not limited to such a shape.
Depending on the arrangement position and the number of arrangements of the connection members 439 of the liquid discharge unit 430, the connection member protection portion 16a can be appropriately designed so as to have a shape capable of covering and protecting them.

7A and 7B are views showing a second example of the liquid discharge head protection member 16 of the present embodiment, where (A) and (B) are side views in a mounted state, (C) is a side view, and (D). ) Is a top view, and (E) is a partial perspective view of the mounted state.
The liquid discharge head protection member 16 is a connecting portion that integrally connects the discharge port protection portion 16c that protects the discharge port, the connection member protection portion 16a that protects the connection member, the discharge port protection portion 16c, and the connection member protection portion 16a. It has 16b and.
The liquid discharge head protection member 16 has flexibility, and the connecting portion 16b is bent and mounted.

In the example of FIG. 6, the connecting member protection portion 16a is provided as two cap-shaped members that individually cover the two connecting members 439, but in the present embodiment shown in FIG. 7, the two connecting members 439 are integrated. It is configured to be housed in the cap of. This improves the ease of mounting.

FIG. 8 is a view showing a third example of the liquid discharge head protection member 16 of the present embodiment, (A) and (B) are side views in a mounted state, and (C) is a top view.
The liquid discharge head protection member 16 is a connection that integrally connects the discharge port protection portion 16c that protects the discharge port, the connection member protection portion 16a that protects the connection member 439, the discharge port protection portion 16c, and the connection member protection portion 16a. It has a part 16b and.
The liquid discharge head protection member 16 has flexibility, and the connecting portion 16b is bent and mounted.

The discharge port protection unit 16c is a cap-shaped member that covers at least a part of the discharge surface 11 having the discharge port 11a of the liquid discharge head 434 and the side surface of the liquid discharge head 434, as in the other examples described above.
The discharge port protection portion 16c of the present embodiment shown in FIG. 8 has at least one pair of protrusions 17 facing each other on the inner side surface, and the side surfaces of the liquid discharge head 434 are sandwiched by the protrusions 17. Since this structure is more reliably fixed, the discharge port protection portion 16c is less likely to come off even when the connection member protection portion 16a is removed.

Further, when arranging the liquid discharge unit 430 in the above-mentioned liquid discharge device (printer shown in FIGS. 1 and 2), while the work of connecting the supply tube 436 to the connection member 439 of the liquid supply mechanism is being performed. Also, the discharge surface 11 of the liquid discharge head 434 can be protected.

9A and 9B are views showing a fourth example of the liquid discharge head protection member 16 of the present embodiment, where (A) and (B) are side views in a mounted state, (C) is a top view, and (D). ) Is a partial perspective view of the mounted state.
The liquid discharge head protection member 16 is a connection that integrally connects the discharge port protection portion 16c that protects the discharge port, the connection member protection portion 16a that protects the connection member 439, the discharge port protection portion 16c, and the connection member protection portion 16a. It has a part 16b and.
The liquid discharge head protection member 16 has flexibility, and the connecting portion 16b is bent and mounted.

The connecting portion 16b of the present embodiment shown in FIG. 9 has a breaking portion 18 formed so as to be breakable. By breaking the broken portion 18, the discharge port protection portion 16c and the connecting member protection portion 16a are separated.
With this structure, it is possible to remove only one of the discharge port protection portion 16c and the connection member protection portion 16a while the other is attached. If only one protection is needed, the other removed member will not get in the way.

As described above, according to the liquid discharge head protection member 16 of the present embodiment, at least a plurality of protection targets including the discharge port 11a of the liquid discharge head 434 can be reliably protected by a single member, and during use. It is possible to prevent the occurrence of defective discharge.

Next, the packaging form of the liquid discharge unit 430 of the present embodiment will be described with reference to FIGS. 10 and 11.
10A and 10B are explanatory views showing an example of a state in which the liquid discharge unit 430 of the present embodiment is housed in the storage container 21, FIG. 10A is a top view, and FIG. 10B is a storage container 21. A side view and FIG. 10C is a side view of the storage container 22 in which the liquid discharge unit 430 is housed.
The liquid discharge unit 430 is housed in a state where the liquid discharge head protection member 16 is attached to the liquid discharge head 434.
The storage container 21 is fixed by an engaging portion 21a of the lid portion provided so that the unevenness meshes with each other and an engaging portion 21b of the main body portion.

FIG. 11 is an explanatory view showing an example of a packaging form of the liquid discharge unit housed in the storage container.
FIG. 11A shows a storage container 22 in which the liquid discharge unit 430 is housed, and a bag-shaped member 23 that houses the storage container 22. The storage container 22 is stored in the bag-shaped member 23 and then sealed. Examples of the bag-shaped member 23 include a polyethylene bag member and the like.
FIG. 11 (B) is an explanatory view showing that what is sealed in FIG. 11 (A) is further wrapped in a bag-shaped member 24 having a buffering function. The bag-shaped member 24 is not particularly limited, but is preferably a material that can avoid damage due to an impact during transportation, and examples thereof include a bag-shaped member made of a bubble wrap sheet.

11 Discharge surface 11a Discharge port 16 Liquid discharge head protection member 16a Connection member protection part 16b Connecting part 16c Discharge port protection part 17 Protrusion part 18 Breaking part 430 Liquid discharge unit 434 Liquid discharge head 439 Connection member

Japanese Unexamined Patent Publication No. 7-89085

Claims (9)

With multiple discharge ports to discharge liquid,
A liquid chamber that communicates with the plurality of discharge ports and
A liquid discharge head protection member mounted on a liquid discharge head including at least a connecting member for supplying a liquid to the liquid chamber or recovering the liquid from the liquid chamber.
The liquid discharge head protection member is
A discharge port protection unit that protects the discharge port and
A connection member protection unit that protects the connection member,
It has a discharge port protection portion and a connecting portion that integrally connects the connection member protection portion.
The connecting portion has flexibility, and the connecting portion is bent and attached to the liquid discharge head to protect the discharge port and the connecting member .
The discharge port protection portion is a cap-shaped member that covers at least a part of the discharge surface of the liquid discharge head having the discharge port and the side surface thereof.
A liquid discharge head protection member having at least one pair of protrusions facing each other on the inner side surface, and sandwiching the side surface of the liquid discharge head by the protrusions. With multiple discharge ports to discharge liquid,
A liquid chamber that communicates with the plurality of discharge ports and
A liquid discharge head protection member mounted on a liquid discharge head including at least a connecting member for supplying a liquid to the liquid chamber or recovering the liquid from the liquid chamber.
The liquid discharge head protection member is
A discharge port protection unit that protects the discharge port and
A connection member protection unit that protects the connection member,
It has a discharge port protection portion and a connecting portion that integrally connects the connection member protection portion.
The connecting portion has flexibility, and the connecting portion is bent and attached to the liquid discharge head to protect the discharge port and the connecting member.
A liquid discharge head protecting member, wherein the connecting portion has a breaking portion formed so as to be breakable, and the discharge port protecting portion and the connecting member protecting portion are divided by the breaking portion. 2 . Liquid discharge head protection member. The liquid discharge head protective member according to any one of claims 1 to 3 , wherein the connecting portion has a slack at a fold portion in the mounted state. The liquid discharge head protection member according to any one of claims 1 to 4, wherein at least the discharge port protection portion is made of an elastic member. At least a plurality of discharge ports for discharging a liquid, a liquid chamber communicating with the plurality of the discharge ports, and a connecting member for supplying the liquid to the liquid chamber or recovering the liquid from the liquid chamber are provided.
It has a discharge port protection portion that protects the discharge port, a connection member protection portion that protects the connection member, and a connection portion that integrally connects the discharge port protection portion and the connection member protection portion. parts are flexible, the connecting portion is attached to the bent in the liquid discharge head provided with a liquid discharge head protecting member for protecting said discharge port and said connecting member,
The discharge port protection portion is a cap-shaped member that covers at least a part of the discharge surface of the liquid discharge head having the discharge port and the side surface thereof.
A liquid discharge head having at least one pair of protrusions facing each other on the inner side surface, and sandwiching the side surface of the liquid discharge head by the protrusions . At least a plurality of discharge ports for discharging a liquid, a liquid chamber communicating with the plurality of the discharge ports, and a connecting member for supplying the liquid to the liquid chamber or recovering the liquid from the liquid chamber are provided.
It has a discharge port protection portion that protects the discharge port, a connection member protection portion that protects the connection member, and a connection portion that integrally connects the discharge port protection portion and the connection member protection portion. The portion is flexible, the connecting portion is bent and attached to the liquid discharge head, and includes a liquid discharge head protection member that protects the discharge port and the connection member.
A liquid discharge head characterized in that the connecting portion has a breaking portion formed so as to be breakable, and the discharge port protecting portion and the connecting member protecting portion are divided by the breaking portion. A common flow board provided with the discharge port and an individual liquid chamber communicating with the discharge port, a pressure generating means for pressurizing the liquid in the individual liquid chamber, and a common for storing the liquid until it flows through the flow path plate. 6. A claim 6 comprising a common liquid chamber substrate provided with a liquid chamber, pressurizing the liquid in the individual liquid chambers by driving the pressure generating means, and discharging liquid droplets from the discharge port. Or the liquid discharge head according to 7. A liquid discharge unit comprising the liquid discharge head according to any one of claims 6 to 8.

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