CN211617043U - Liquid discharge head and liquid discharge device - Google Patents
Liquid discharge head and liquid discharge device Download PDFInfo
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- CN211617043U CN211617043U CN201921692673.2U CN201921692673U CN211617043U CN 211617043 U CN211617043 U CN 211617043U CN 201921692673 U CN201921692673 U CN 201921692673U CN 211617043 U CN211617043 U CN 211617043U
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- ink
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Abstract
The present invention has been made to solve the above problems, and an object of the present invention is to provide a liquid discharge head and a liquid discharge device that can prevent ink from entering the liquid discharge head. A liquid ejection head according to one embodiment includes: a liquid discharge unit having a nozzle for discharging liquid and an actuator; a circuit board connected with the actuator; a housing accommodating the circuit board; an interface substrate connected with the circuit board and having an external connector exposed outside the housing; and a connector cover covering the external connector. Through the utility model discloses, can prevent that printing ink from soaking in the liquid head of spouting.
Description
Technical Field
Embodiments of the present invention relate to a liquid discharge head and a liquid discharge device.
Background
In a liquid discharge head such as an ink jet head used in various liquid discharge devices such as an ink jet recording device, there is designed a liquid discharge head electrically connected to an external device through a flexible cable. One end side of the flexible cable is connected to a circuit board housed in a housing of the liquid discharge head via a connector. For example, the other end side of the flexible cable is pulled out to the outside of the housing of the inkjet head and connected to an external device. Alternatively, a structure is also known in which the other end side of the flexible cable is connected to an interface substrate having an interface connector for external connection via a cable connector. The interface connector of the interface board is disposed outside the housing and connected to a cable for external connection.
However, there is a problem that the scattered ink enters the inside of the inkjet head through the interface connector outside the housing, causing a failure of the circuit board.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above problems, and an object of the present invention is to provide a liquid discharge head and a liquid discharge device that can prevent ink from entering the liquid discharge head.
A liquid ejection head according to one embodiment includes: a liquid discharge unit having a nozzle for discharging liquid and an actuator; a circuit board connected with the actuator; a housing accommodating the circuit board; an interface substrate connected with the circuit board and having an external connector exposed outside the housing; and a connector cover covering the external connector.
A liquid discharge device according to another embodiment includes: a liquid discharge head having: a liquid discharge portion having an actuator and a nozzle for discharging liquid, a circuit board connected to the actuator, a housing accommodating the circuit board, an interface substrate connected to the circuit board and having an external connector exposed outside the housing, a connector cover covering the external connector, and a flow path pipe having an ink port and forming an ink flow path passing through the inside of the housing and connecting the liquid discharge portion and the outside of the housing; a connection flow path connected to the flow path pipe; and a control substrate connected with the circuit board via the external connector.
Through the utility model discloses, can prevent that printing ink from soaking in the liquid head of spouting.
Drawings
Fig. 1 is a perspective view showing a structure of an ink jet head according to a first embodiment;
FIG. 2 is a perspective view showing a structure of a part of the ink jet head;
FIG. 3 is an explanatory view showing a structure of an ink jet recording apparatus using the ink jet head;
fig. 4 is a perspective view showing a structure of a part of an ink jet head according to another embodiment;
fig. 5 is a perspective view showing a structure of a part of an ink jet head according to another embodiment;
fig. 6 is a cross-sectional view showing a structure of a part of an ink jet head according to another embodiment.
Detailed Description
An ink jet head 1 as a liquid discharge head and an ink jet recording apparatus 100 as a liquid discharge apparatus according to a first embodiment will be described below with reference to fig. 1 to 3. Fig. 1 is a perspective view showing the structure of an ink jet head 1 according to a first embodiment. Fig. 2 is an enlarged perspective view of a part of the ink jet head 1. Fig. 3 is an explanatory diagram showing the structure of the inkjet recording apparatus 100. In the drawings, for convenience of explanation, the structure is shown enlarged, reduced, or omitted as appropriate. In the present embodiment, the ink jet head 1 and the ink jet recording apparatus 100 are disposed in an attitude in which the ink discharge direction is directed downward, but the present invention is not limited to this, and may be modified in accordance with the attitude of the apparatus and the arrangement of each part.
As shown in fig. 1 and 2, the ink jet head 1 includes a liquid discharge portion 10, a housing 20, a substrate unit 30, and an interface substrate 40.
The liquid discharge portion 10 is disposed below the substrate unit 30. The liquid discharge portion 10 includes an actuator 11 and a nozzle plate 12 having a plurality of nozzles. The actuator 11 includes, for example, a plurality of pressure chambers communicating with the respective nozzles, a common chamber communicating with the plurality of pressure chambers, a driving element driving the plurality of pressure chambers, and an electrode connected to the driving element. The drive element has, for example, a piezoelectric element. Nozzle plate 12 has a plurality of nozzles.
A plurality of flow path pipes such as the supply pipe 13a and the recovery pipe 13b are connected to the liquid discharge unit 10. For example, the supply tube 13a and the recovery tube 13b communicate with the common chamber of the liquid discharge unit 10 at one end disposed on the lower side in fig. 1 and the like, and thereby the supply tube 13a and the recovery tube 13b form an ink flow path that passes through the inside of the casing 20 and connects the liquid discharge unit 10 and the outside of the casing 20, and have an ink port 14 at the upper end in the drawing of the supply tube 13a and the recovery tube 13 b. The ink port 14 is disposed adjacent to the connector port 23 e. The connection channel 135 of the inkjet recording apparatus 100 is connected to the ink port 14 (i.e., a channel tube), and the ink channel is connected to a liquid storage portion such as the supply tank 132 via the connection channel 135.
The housing 20 is formed in a rectangular box shape. For example, in the present embodiment, the housing 20 includes a pair of rectangular first walls 20a disposed respectively in front and rear of the substrate unit 30, a pair of side walls 20c disposed respectively on both side portions of the substrate unit 30, and an upper wall 20d having the interface substrate 40. The liquid discharge portion 10 is provided at a lower portion of the casing 20, and the substrate unit 30 is housed in a space sealed by the casing 20 and the actuator 11.
The upper wall 20d is formed with a plurality of tube drawing ports 23d and a plurality of connector ports 23e, wherein the plurality of tube drawing ports 23d are circular through holes for drawing the supply tube 13a and the recovery tube 13b out of the housing 20, and the plurality of connector ports 23e are for leading out the external connector 41 of the interface substrate 40.
The substrate unit 30 has a rectangular plate-shaped circuit board 31 erected in the internal space of the housing 20, and a flexible cable 32 connected to one end side of the circuit board 31.
The circuit board 31 is provided upright on the upper portion of the liquid discharge portion 10. Various electronic components 34 such as a driver IC (integrated circuit) are mounted on the circuit board 31. For example, the circuit board 31 is connected to the actuator 11 of the liquid discharge unit 10 via the flexible substrate 35. A connector base 31a connected to the flexible cable 32 is mounted at a predetermined position near the upper edge of the circuit board 31.
The flexible cable 32 is formed in a band shape having a predetermined width and has a plurality of wires arranged along the longitudinal direction. The flexible cable 32 has cable connectors 32a, 32b at both ends.
The flexible cable 32 is connected to the circuit board 31 by inserting and engaging a cable connector 32b disposed on one end side of the flexible cable 32 into the connector base 31a of the circuit board 31. The cable connector 32a disposed on the other end side of the flexible cable 32 is connected to the connector base 43 of the interface substrate 40. That is, the interface substrate 40 and the circuit board 31 are connected by the flexible cable 32.
The interface substrate 40 is a circuit board on which predetermined wiring is formed, and is disposed inside the case 20. For example, in the present embodiment, the interface board 40 is formed in a rectangular shape smaller than the upper wall 20d, and is disposed below the upper wall 20 d. For example, two external connectors 41 for external connection are provided on one main surface of the interface substrate 40, and a connector base 43 connected to the flexible cable 32 is provided on the other main surface.
Each external connector 41 is exposed to the outside of the housing 20 from the connector port 23 e. Specifically, the external connector 41 protrudes from the connector port 23e to the outside of the housing 20. The wire harness for external connection is connected to the external connector 41. The external connector 41 is disposed on the upper wall 20d, and the upper wall 20d is the same wall surface as the wall surface on which the supply tube 13a and the recovery tube 13b are disposed. For example, the external connector 41 is disposed adjacent to the supply pipe 13a and the recovery pipe 13 b. Each external connector 41 is provided with a connector cover 51. The outer connector 41 is disposed in the connector port 23e, and a gap 23h having a prescribed width is formed between the outer connector 41 and the edge of the connector port 23 e.
The connector cover 51 is formed of a synthetic resin material or a rubber material in a box shape with one side opened. The connector cover 51 is formed in a box shape slightly larger than the external connector 41 and having one open side. The connector cover 51 has a housing hole 51a in which the external connector 41 is disposed (housed). An opening edge (edge) 51b of the housing hole 51a of the connector cover 51 is formed in the same rectangular shape as the gap 23h between the connector port 23e and the external connector 41, and has a thickness equivalent to that of the gap 23 h. When the wire harness is detached from the external connector 41 and the connection of the external interface is disconnected, when the connector cover 51 is mounted on the external connector 41, the external connector 41 is arranged in the receiving hole 51a, and the opening edge of the connector cover 51 is arranged in the gap 23h between the connector opening 23e and the external connector 41. The opening edge 51b of the connector cover 51 is fitted to at least one of the connector port 23e and the external connector 41. For example, the connector cover 51 prevents ink or the like from adhering to the external connector 41 by covering the external connector 41. Further, the connector cover 51 prevents the ink from entering the housing 20 by the opening edge 51b engaging with the connector port 23e and the external connector 41 and blocking the gap 23h of the housing 20. The connector cover 51 has ink resistance so that even if a few drops of ink are attached, the ink does not penetrate into the inside of the ink-jet head 1.
The connector cover 51 is configured to be engageable with the housing 20. Specifically, for example, engaging claws are integrally formed on the connector cover 51, and engaging holes as engaging portions with which the engaging claws are engaged are formed on the outer surface of the housing, for example, whereby the connector cover 51 is held on the housing 20.
In the ink jet head 1 having the above-described configuration, for example, the actuator 11 is driven by applying a driving voltage from a driving IC mounted on the circuit board 31, and droplets are discharged from the nozzles.
The inkjet head 1 is provided in, for example, an inkjet recording apparatus 100 shown in fig. 3. The ink jet head 1 is a circulation type head, and is connected to a supply tank 132 provided in the ink jet recording apparatus 100 as a liquid storage portion, and circulates ink between the ink jet head 1 and the supply tank 132. For example, the inkjet head 1 is disposed in a posture in which the nozzles of the liquid discharge portion 10 face downward.
Hereinafter, the inkjet recording apparatus 100 having the inkjet head 1 will be described with reference to fig. 3. The inkjet recording apparatus 100 includes a casing 111, a medium supply unit 112, an image forming unit 113, a medium discharge unit 114, a conveying device 115 as a support device, and a control board having a control unit 116.
The inkjet recording apparatus 100 is an inkjet printer that ejects a liquid such as ink while conveying a recording medium such as a sheet P as an ejection target along a predetermined conveyance path a1 to perform an image forming process on the sheet P, and the predetermined conveyance path a1 reaches a medium discharge unit 114 from a medium supply unit 112 via an image forming unit 113.
The medium feeding unit 112 includes a plurality of paper feeding cassettes 112 a. The medium discharge portion 114 includes a discharge tray 114 a. The image forming unit 113 includes a support portion 117 that supports the sheet, and a plurality of head units 130 arranged above the support portion 117 so as to face each other. The support 117 includes a conveyor belt 118 provided in a loop in a predetermined region where image formation is performed, a support plate 119 supporting the conveyor belt 118 from the back side, and a plurality of belt rollers 120 provided on the back side of the conveyor belt 118.
The head unit 130 includes a plurality of ink-jet heads 1 as liquid discharge heads, a plurality of supply tanks 132 as liquid tanks mounted on the respective ink-jet heads 1, a connection passage 135 connecting the ink-jet heads 1 and the supply tanks 132, and a circulation pump 134 as a circulation unit. The head unit 130 is a circulation type head unit that circulates liquid.
In the present embodiment, the four head units 130 in the image forming portion 113 have inkjet heads 1 of four colors of cyan, magenta, yellow, and black, respectively; and supply tanks 132 that respectively house inks of each color. The supply tank 132 is connected to the inkjet head 1 through a connection passage 135. The connection channel 135 includes a supply hose 135a and a recovery hose 135 b. The supply hose 135a is an ink hose, and constitutes a supply flow path connected to the supply tube 13a of the inkjet head 1. The recovery hose 135b is an ink hose, and constitutes a recovery flow path connected to the recovery tube 13b of the inkjet head 1.
A negative pressure control device (not shown) such as a pump is connected to the supply tank 132. Then, the negative pressure control means performs negative pressure control on the inside of the supply tank 132 corresponding to the water head value between the inkjet head 1 and the supply tank 132 so that the ink supplied to each nozzle of the inkjet head 1 forms a meniscus having a prescribed shape.
The circulation pump 134 is a liquid feeding pump formed of, for example, a piezoelectric pump. The circulation pump 134 is connected to the control unit 116 through a wire, and is configured to be controllable by control of a cpu (central processing unit) 116 a. The circulation pump 134 circulates the liquid in a circulation flow path including the inkjet head 1 and the supply tank 132.
The conveyance device 115 conveys the sheet P along a conveyance path a1, which is a sheet discharge tray 114a from the sheet feed cassette 112a of the medium supply portion 112 to the medium discharge portion 114 through the image forming portion 113, and the conveyance path a 1. The conveyance device 115 includes a plurality of guide plate pairs 121a to 121h and a plurality of conveyance rollers 122a to 122h arranged along the conveyance path a 1. The transport device 115 supports the sheet P so that the sheet P can move relative to the inkjet head 1.
The control unit 116 includes a CPU116a as an example of a processor, a rom (read only memory) in which various programs are stored, a ram (random Access memory) in which various variable data and image data are temporarily stored, and an interface unit for inputting and outputting data from and to the outside. The control unit 116 is mounted on the control board and connected to the circuit board 31 via the external connector 41.
In the inkjet head 1 and the inkjet recording device 100, when driving is performed to eject liquid from the nozzles, the control section 116 applies a driving voltage to the driving elements of the actuator 11 and operates the actuator 11 to eject ink droplets from the nozzles.
In the ink jet head 1 having the above-described configuration, the ink reaches the pressure chamber of the liquid discharge portion 10 from the supply tank 132 shown in fig. 3 through the supply hose 135a and the supply tube 13a, and is discharged from the nozzle disposed opposite to the pressure chamber. On the other hand, the ink is recovered from the pressure chamber to the supply tank 132 through the recovery tube 13b and the recovery hose 135b and circulated. When the ink-jet head 1 is connected to the ink-jet recording apparatus 100, first, the supply hose 135a and the recovery hose 135b constituted by ink hoses are connected to the ink port 14, and the ink is supplied from the supply tank 132 to the ink-jet head 1 side, and then, the connector cover 51 is detached from the external connector 41, and the wire harness is connected to the external connector 41. On the other hand, when the connection with the inkjet recording apparatus 100 is disconnected, the job is executed by the following steps: first, the harness connected to the external connector 41 is detached and the connector cover 51 is attached, and then the supply hose 135a and the recovery hose 135b are detached from the ink port 14.
As described above, the ink jet head 1 and the ink jet recording apparatus 100 according to the present embodiment can prevent the ink from entering the case 20 from the external connector 41. For example, when mist generated when ink is discharged in an inkjet head adheres to a circuit board for driving the head in the inkjet head, a malfunction is caused. In addition, in the configuration in which the external connector is disposed adjacent to the ink port, when the ink hose connected to the ink port is removed, ink may scatter, and ink may enter the head from the connector portion through the connector and the wire harness. On the other hand, in the ink jet head 1 according to the present embodiment, the connector cover 51 is attached so that even when ink or the like is scattered to the external connector 41 in a state where the wire harness is not connected, the ink can be prevented from entering the external connector 41 or the housing 20. In the inkjet head 1, the possibility of ink intrusion can be further reduced by fitting the connector cover 51 into the gap 23h of the housing 20 and sealing the gap 23 h. Further, by forming the connector cover 51 using a synthetic resin material or a rubber material, the gap 23h can be sealed, and the effect of preventing the ink from being impregnated can be improved. Also, by providing the connector cover 51 with a structure to be held on the housing 20, it is possible to prevent the connector cover 51 from being lost.
The present invention is not limited to the above embodiment, and may be embodied by modifying the components in the implementation stage without departing from the scope of the present invention.
For example, although the interface substrate 40 is disposed in the housing 20 in the above-described embodiment, the present invention is not limited thereto. For example, the interface substrate 40 may be disposed outside the housing 20, and the housing 20 and the interface substrate 40 may be sealed with an adhesive or the like. In this case, by covering the external connector 41 of the interface substrate 40 with the connector cover 51, it is also possible to prevent the ink from infiltrating into the ink-jet head 1 from the external connector 41.
For example, the holding mechanism for holding the connector cover 51 on the housing 20 is not limited to the engaging claws illustrated in the above embodiment. For example, the connector cover 51 may be held on the housing 20 by, for example, a chain mechanism or other locking mechanism.
Fig. 4 and 5 are perspective views showing a structure of a connector cover 151 of an ink jet head 1 according to another embodiment, and fig. 6 is a sectional view. In the present embodiment, the connector cover 151 is held on the housing 20 by the cover tape 153. Further, the connector cover 151 is provided with a cover tape 153 and an engaging blade 152, and a cutout portion is formed in the connector port 23 e. Since other configurations are the same as those in the first embodiment, common descriptions are omitted.
As shown in fig. 4 to 6, in the present embodiment, the inkjet head 1 has an external connector 41, and a connector cover 151 attached to the external connector 41. The connector port 23e formed in the upper wall 20d of the housing 20 is a rectangular opening, and has cutout portions 23i at both ends in the longitudinal direction. The notch 23i is formed in a convex shape, and the notch 23i is formed so that a part of both end portions in the longitudinal direction of the connector port 23e protrudes in the longitudinal direction. A holding portion 24 coupled to a cover tape 153 that holds the connector cover 151 is provided in the vicinity of the connector port 23e of the housing 20. The holding portion 24 is, for example, a bolt-like member fastened to the housing 20, and holds one end of the cover tape 153.
As with the external connector 41 according to the first embodiment, the external connector 41 is provided on one main surface of the interface substrate 40 disposed in the housing 20. The outer connector 41 is disposed in the connector port 23e, and a gap 23h having a prescribed width is formed between the outer connector 41 and the edge of the connector port 23 e. The external connector 41 in the present embodiment is exposed to the outside through the connector port 23e, but the external connector 41 is located inside the outer surface of the housing 20 in the connector port 23 e. In other words, the external connector 41 does not protrude to the outside of the housing 20. Each external connector 41 is provided with a connector cover 151.
The connector cover 151 is made of a synthetic resin material or a rubber material. The connector cover 151 includes a cover 151c formed in a box shape with one side open, a pair of engaging blades 152 provided at both ends in a first direction, which is a longitudinal direction, of the cover 151c, and a cover tape 153.
The lid 151c has a bottom wall and a peripheral wall, and is configured in a box shape slightly larger than the external connector 41 and having one open side. The connector cover 151 has a housing hole 151a in which the external connector 41 is disposed (housed). An opening edge (rim) 151b of the receiving hole 151a of the connector cover 151 is formed in the same rectangular shape as the gap 23h between the connector port 23e and the external connector 41, and has a thickness equivalent to that of the gap 23 h.
The pair of engaging blades 152 has a plate-shaped first engaging piece 152a and a plate-shaped second engaging piece 152b formed integrally, and is configured to have a T-shaped cross section, for example. The first engaging piece 152a overlaps the upper wall 20d, and the second engaging piece 152b is disposed below the first engaging piece 152a in the figure and orthogonal to the first engaging piece 152 a. The first engaging piece 152a is slightly longer than the second engaging piece 152b in the longitudinal direction of the connector cover 151, and an end surface of the first engaging piece 152a protrudes in the longitudinal direction of the connector cover than an end surface of the second engaging piece 152 b. That is, when the second engagement piece 152b is inserted into the convex cutout portion 23i, the first engagement piece 152a of the second engagement piece 152b is placed on the upper surface of the upper wall 20d of the case 20 around the cutout portion 23i in a superposed manner.
The cover tape 153 is made of, for example, a rubber material in a string shape and is configured to be stretchable. One end of the cover tape 153 is coupled to the engaging blade 152. The other end of the cover tape 153 is formed in, for example, a ring shape, and is fastened to the holding portion 24 formed in the housing 20. The connector cover 151 is held on the housing 20 by a cover tape 153.
In the present embodiment, when the connector cover 151 is mounted on the external connector 41 at the time of detaching the wire harness from the external connector 41 and disconnecting the external interface, the external connector 41 is arranged in the receiving hole 151a, and the opening edge 151b of the connector cover 151 is arranged in the gap 23h between the connector port 23e and the external connector 41. At this time, the second engagement piece 152b of the engagement blade 152 is inserted into the notch portion 23i of the connector port 23e, and the first engagement piece 152a is arranged to overlap the surface of the housing 20 in the vicinity of the notch portion 23 i. The opening edge 151b of the connector cover 151 is fitted to at least one of the connector port 23e and the external connector 41. The other structures are the same as those of the external connector 41 and the connector cover 51 according to the first embodiment. Further, since the cover tape 153 is telescopically constructed of a rubber material, the height and position of the external connector 41 can be adjusted.
In the present embodiment, since the connector cover 151 is held on the housing 20 by the cover tape 153, even in a state where the connector cover 151 is detached from the external connector 41, loss can be prevented. In addition, in the present embodiment, an example in which the holding portion 24 for fixing the cover tape 153 is provided is shown as an example, but the cover tape 153 may be attached and fixed to an existing member such as the supply pipe 13a and the recovery pipe 13b or a pipe member for cooling water.
Further, the liquid to be discharged is not limited to ink for printing, and may be, for example, a device that discharges a liquid containing conductive particles to form a wiring pattern of a printed wiring board.
In addition to the above-described structure in which the driving is performed using the piezoelectric element, the inkjet head may be a structure in which the vibration plate is deformed by static electricity to discharge ink droplets, a structure in which ink droplets are discharged from the nozzles by thermal energy of a heat source or the like, for example.
In addition, in the above-described embodiments, the example in which the ink jet head is used in the liquid discharge device such as the ink jet recording device is shown, but the present invention is not limited to this, and for example, the ink jet head may be used in a 3D printer, an industrial manufacturing machine, a medical use, and the like, and a small size, a light weight, and a low cost can be realized.
While several embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various manners, and various omissions, substitutions, combinations, and changes can be made without departing from the gist of the present invention. These embodiments and modifications are included in the scope and gist of the present invention, and are included in the present invention described in the claims and the equivalent scope thereof.
Claims (7)
1. A liquid discharge head comprising:
a liquid discharge unit having a nozzle for discharging liquid and an actuator;
a circuit board connected with the actuator;
a housing accommodating the circuit board;
an interface substrate connected with the circuit board and having an external connector exposed outside the housing; and
a connector cover covering the external connector.
2. The liquid ejection head according to claim 1,
the connector cover has a receiving hole for receiving an external connector,
the interface substrate is disposed inside the housing,
the housing having a connector port with an external connector disposed therein,
the external connector protrudes from the connector port to an outside of the housing,
a gap is formed between the connector port and the external connector, and an edge of the receiving hole of the connector cover is arranged in the gap.
3. The liquid ejection head according to claim 2, further comprising:
and a flow path pipe that forms an ink flow path that passes through the inside of the housing and connects the liquid discharge portion and the outside of the housing, and that has an ink port at a position adjacent to the connector port.
4. The liquid ejection head according to claim 1,
the connector cover is retained on the housing.
5. The liquid ejection head according to claim 2,
the connector cover is retained on the housing.
6. The liquid ejection head according to claim 3,
the connector cover is retained on the housing.
7. A liquid discharge device is characterized by comprising:
a liquid discharge head having: a liquid discharge portion having an actuator and a nozzle for discharging liquid, a circuit board connected to the actuator, a housing accommodating the circuit board, an interface substrate connected to the circuit board and having an external connector exposed outside the housing, a connector cover covering the external connector, and a flow path pipe having an ink port and forming an ink flow path passing through the inside of the housing and connecting the liquid discharge portion and the outside of the housing;
a connection flow path connected to the flow path pipe; and
a control substrate connected with the circuit board via the external connector.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-051184 | 2019-03-19 | ||
| JP2019051184A JP7206138B2 (en) | 2019-03-19 | 2019-03-19 | Liquid ejection head and liquid ejection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211617043U true CN211617043U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921692673.2U Active CN211617043U (en) | 2019-03-19 | 2019-10-11 | Liquid discharge head and liquid discharge device |
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| JP (1) | JP7206138B2 (en) |
| CN (1) | CN211617043U (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009023168A (en) | 2007-07-18 | 2009-02-05 | Seiko Epson Corp | Cover member and recording device |
| JP2010094201A (en) | 2008-10-15 | 2010-04-30 | Canon Inc | Liquid drop discharging device |
| JP5262968B2 (en) | 2009-04-30 | 2013-08-14 | コニカミノルタＩｊ株式会社 | Substrate mounting structure and inkjet head |
| JP5876382B2 (en) | 2012-06-25 | 2016-03-02 | 京セラ株式会社 | Cover member for liquid discharge head, liquid discharge head with cover and recording apparatus using the same |
| JP6436281B2 (en) | 2014-03-31 | 2018-12-12 | セイコーエプソン株式会社 | Liquid ejecting head and liquid ejecting apparatus |
| JP6428301B2 (en) | 2015-01-23 | 2018-11-28 | 株式会社リコー | Liquid discharge head, liquid discharge unit, and apparatus for discharging liquid |
| JP6784133B2 (en) | 2016-02-15 | 2020-11-11 | 株式会社リコー | Liquid discharge head, liquid discharge unit, device that discharges liquid |
| JP2017164917A (en) | 2016-03-14 | 2017-09-21 | 株式会社リコー | Liquid discharge head and liquid discharge device |
| JP7009767B2 (en) | 2016-06-04 | 2022-01-26 | 株式会社リコー | Liquid discharge head, liquid discharge unit, liquid discharge device |
| JP6920848B2 (en) | 2017-03-24 | 2021-08-18 | 東芝テック株式会社 | Liquid discharge head and liquid discharge device |
-
2019
- 2019-03-19 JP JP2019051184A patent/JP7206138B2/en active Active
- 2019-10-11 CN CN201921692673.2U patent/CN211617043U/en active Active
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| JP7206138B2 (en) | 2023-01-17 |
| JP2020151900A (en) | 2020-09-24 |
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