JP2005178127A - Liquid ejecting head and liquid ejecting apparatus - Google Patents

Abstract

A liquid ejecting head and a liquid ejecting apparatus that can cope with a change in the position of a discharge opening, do not reduce the reliability of a drive signal supply unit, and do not increase the size of the entire apparatus.
SOLUTION: A head unit portion 330 having a nozzle forming portion 334 having a nozzle opening and an actuator portion 331, and a vibration signal supply means 351 connected to the case portion 320 and the like and the case portion and the head unit portion to supply a vibration signal. A plurality of flexible cable portions formed by connecting to a flexible cable main body 353 having a vibration signal supply means and one end side of the flexible cable main body. Flexible cable connection part 354 to be connected, and a bendable bending part 355 is arranged between the flexible cable main body and the flexible cable connection part, and the bending angle of the bending part is different for each flexible cable part. Liquid ejecting head 320 configured at different angles.
[Selection] Figure 4

Description

  The present invention relates to a liquid ejecting head and a liquid ejecting apparatus that eject liquid.

Conventionally, for example, an ink jet recording apparatus that is a liquid ejecting apparatus is provided with, for example, an ink jet recording head that is a liquid ejecting head for ejecting ink (see, for example, Patent Document 1). The ink jet recording head is provided with a nozzle plate 11 as shown in FIG. 1 and the like of Patent Document 1, and the nozzle plate 11 has a nozzle opening 111 for discharging ink as shown in FIG. Are formed in a nozzle row.
FIGS. 7A and 7B are schematic diagrams illustrating an arrangement example of nozzle rows formed on the nozzle plate 11. That is, FIG. 7A shows a configuration example of a six-color head, and six nozzle rows are formed on the nozzle plate 11. In the drawing, black (Bk), cyan (C), light cyan (Lc), magenta (M), light magenta (Lm), and yellow (Y) ink are applied from the left nozzle row to the right nozzle row. Is formed to discharge.
Specifically, as shown in FIG. 1 of Patent Document 1, the actuator unit 30 performs flexural vibration, and the volume of the pressure chamber connected to the nozzle opening 111 is contracted by the flexural vibration, thereby ejecting ink. It has become. Further, the flexural vibration of the actuator unit 30 is controlled by a drive signal transmitted from a TCP (tape carrier package) 2 shown in FIG. That is, the drive vibration is supplied from the semiconductor integrated circuit 21 such as an IC mounted on the TCP 2 (see FIG. 1 of the document 1).

In recent years, such a six-color ink jet recording head has been changed to a four-color ink jet recording head capable of printing at a higher density. That is, as shown in FIG. 7B, the left three nozzle rows are black (Bk) and the right three rows are cyan (C), magenta (M), and yellow (Y). It becomes a four-color head.
At this time, as shown in FIG. 7B, the black (Bk) nozzle row is arranged slightly shifted in the vertical direction, so that the resolution can be increased.
Japanese Patent Laid-Open No. 11-300956 (FIG. 1 etc.)

However, if the position of the black (Bk) nozzle row changes in this way, not only the nozzle plate 11 but also the position of the actuator unit 30 described above needs to be changed, and the TCP 2 also needs to be changed. For this reason, it is necessary to manufacture the TCP 2 in accordance with the arrangement of the nozzle rows of the ink jet recording head, resulting in an increase in manufacturing cost.
For example, when more than six nozzle rows are formed on the nozzle plate 11 or when the number of nozzle openings 111 in one nozzle row is increased, driving is performed according to the increased nozzle rows or nozzle openings 111. It is necessary to increase the size of the semiconductor integrated circuit 21 such as an IC for supplying signals. However, when a large-sized IC or the like is mounted on TCP2, there is a problem that reliability is lowered.
Also, in order to avoid such an increase in the size of the IC or the like, a configuration in which a plurality of TCPs 2 supply drive signals to the actuator unit 30 instead of one TCP 2 supplying drive signals to the actuator unit 30 is also possible. Conceivable.
However, when a plurality of TCP2s are arranged adjacent to each other, there is a problem that a gap is generated between them, resulting in an increase in size as compared with a single TCP2, thereby increasing the size of the inkjet recording head.

  SUMMARY An advantage of some aspects of the invention is to provide a liquid ejecting head and a liquid ejecting apparatus that can cope with a change in the position of the ejection opening, do not reduce the reliability of the drive signal supply unit, and do not increase the size of the entire apparatus. .

According to the first aspect of the present invention, there is provided a nozzle forming portion having a plurality of nozzle openings for discharging liquid, wherein the plurality of nozzle openings are grouped into at least one or more, and connected to the nozzle openings. A pressure chamber forming section having a plurality of pressure chambers, and an actuator section that is arranged corresponding to the plurality of pressure chambers and has a plurality of actuators that vibrate to discharge the liquid from the nozzle openings. A head unit portion, a case portion for supplying the liquid to the head unit portion, and a vibration signal supply means connected to the case portion and the head unit portion for supplying a vibration signal for the actuator to vibrate. And a flexible cable portion having the flexible cable portion, wherein the flexible cable portions are grouped. A plurality of flexible cable portions are formed so as to be arranged respectively with respect to the actuator, and the flexible cable portion is formed to be connected to one end side of the flexible cable main body and the flexible cable main body having the vibration signal supply means, and the head A flexible cable connecting portion connected to the unit portion, and a bendable bending portion is disposed between the flexible cable main body and the flexible cable connecting portion, and a bending angle of the bending portion is set. This is achieved by the liquid ejecting head, wherein each flexible cable portion is configured at a different angle.

According to the structure of 1st invention, the bending part which can be bent is arrange | positioned between the said flexible cable main body and the said flexible cable connection part, and the bending angle of the said bending part is for every said flexible cable part. Consists of different angles. For this reason, the angle between the flexible cable main body and the flexible cable connecting portion arranged via the bent portion is different.
On the other hand, when each of the plurality of flexible cable portions is disposed in the liquid ejecting head, the flexible cable connecting portions of the respective flexible cable portions are bonded to the same head unit portion, so that they are disposed on substantially the same surface. The For this reason, each said flexible cable main body is not arrange | positioned on a substantially identical surface.
Therefore, even if a part of the flexible cable connecting portions of the plurality of flexible cable portions are arranged so as to contact and overlap each other, the flexible main bodies of the flexible cable portions are arranged apart from each other. Therefore, they do not touch each other.
Normally, when a plurality of flexible main bodies of a plurality of flexible cable portions are in contact with each other, the flexible cable portions interfere with each other, causing TCP to peel off from the actuator portion, and from the nozzle opening. There is an adverse effect of poor discharge of the liquid to be discharged.

However, in the present invention, since the plurality of flexible cable bodies of the plurality of flexible cable portions are configured not to contact each other, it is possible to avoid peeling of the actuator portion and TCP, and discharge from the nozzle openings. It is possible to avoid the adverse effect of poor liquid discharge. Furthermore, in the invention of this claim, since such a harmful effect does not occur, a part of the flexible cable connecting portions of the plurality of flexible cable portions can be arranged so as to be in contact with each other, so that a gap or the like is provided between them. Therefore, it is possible to avoid increasing the size of the liquid jet head.
In addition, when changing the nozzle forming portion to the nozzle forming portion in which the position of the nozzle opening is changed, it is possible to adjust the position of the flexible cable portion according to the position of the nozzle opening after the change. it can. For this reason, even if there is a change in the position of the nozzle opening of the nozzle forming portion, it is not necessary to newly manufacture a flexible cable portion, and therefore an increase in manufacturing cost can be suppressed.
Further, according to the present invention, each flexible cable body has the vibration signal supply means, so that a plurality of vibration signal supply means supply vibration signals to the actuator unit. Therefore, even if the nozzle opening of the nozzle forming portion increases, it is not necessary to increase the size of the vibration signal supply unit accordingly, and thus it is possible to prevent a decrease in the reliability of the vibration signal supply unit. .

  According to the second invention, in the configuration of the first invention, each of the flexible cable connecting portions of the plurality of flexible cable portions is bonded to the actuator portion, and each of the bent portions of the plurality of flexible cable portions includes: Each of the liquid ejecting heads is disposed on a different surface.

According to the configuration of the second invention, the flexible cable connecting portions of the plurality of flexible cable portions are bonded to the actuator portion, and the bent portions of the plurality of flexible cable portions are arranged on different surfaces. Has been.
When the bent portion is disposed close to the flexible cable connecting portion bonded to the actuator portion, in particular, the plurality of bent portions of the plurality of flexible cable portions come into contact with each other, and the stress increases, and the flexible The cable connection is easy to peel off.
However, in the invention of this claim, since each of the bent portions is arranged on a different surface and does not come into contact with each other, it is possible to prevent the flexible cable connecting portion from being peeled off from the actuator portion by vibration. Can be prevented.

According to a third aspect of the present invention, there is provided a nozzle forming portion having a plurality of nozzle openings for discharging liquid, wherein the plurality of nozzle openings are grouped into at least one or more, and connected to the nozzle openings. A pressure chamber forming section having a plurality of pressure chambers, and an actuator section that is arranged corresponding to the plurality of pressure chambers and has a plurality of actuators that vibrate to discharge the liquid from the nozzle openings. A head unit portion, a case portion for supplying the liquid to the head unit portion, and a vibration signal supply means connected to the case portion and the head unit portion for supplying a vibration signal for the actuator to vibrate. A liquid ejecting apparatus comprising: a flexible cable portion having: A plurality of sibling cable portions are formed so as to be arranged with respect to the grouped actuators, and the flexible cable portion includes a flexible cable main body having the vibration signal supply means, and one end side of the flexible cable main body. And a flexible cable connecting portion connected to the head unit portion, and a bendable bending portion is disposed between the flexible cable body and the flexible cable connecting portion. The liquid ejecting apparatus is characterized in that the bending angle of the bent portion is configured to be different for each of the flexible cable portions.

According to the configuration of the third invention, as in the configuration of the first aspect, the plurality of flexible cable bodies of the plurality of flexible cable portions are configured not to contact each other. Peeling can be avoided and the adverse effect of poor discharge of the liquid discharged from the nozzle opening can be avoided.
Furthermore, since such a problem does not occur, a part of the flexible cable connecting portions of the plurality of flexible cable portions can be arranged so as to contact and overlap each other, so that a gap or the like does not occur between them, and the liquid ejecting apparatus An increase in size is avoided.
Moreover, even if there is a change in the position of the nozzle opening of the nozzle forming portion, it is not necessary to newly manufacture a flexible cable portion, so that an increase in manufacturing cost can be suppressed.
Further, even if the nozzle opening of the nozzle forming portion is increased, it is not necessary to increase the size of the vibration signal supply unit accordingly, so that the reliability of the vibration signal supply unit can be prevented from being lowered. .

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
The embodiments described below are preferred specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. Unless otherwise stated, the present invention is not limited to these embodiments.

FIG. 1 is a schematic perspective view showing an ink jet recording apparatus (hereinafter referred to as “recording apparatus”) 100 according to an embodiment of a liquid ejecting apparatus of the invention.
As shown in FIG. 1, the recording apparatus 100 includes a carriage 101. The carriage 101 is guided by a guide member 104 via a timing belt 103 driven by a carriage motor 102 and reciprocally moves in the axial direction of the platen 105. It is configured to be.

For example, an ink jet recording head (hereinafter referred to as “recording head”) 300, which is a liquid ejecting head described later, is mounted on the side of the carriage 101 facing the recording sheet 200 in FIG. For example, an ink cartridge 106 containing ink, which is liquid, is detachably loaded. The ink cartridge 106 is a different cartridge for each color, such as black (Bk), cyan (C), magenta (M), yellow (Y), and the like.
The recording paper 200 in FIG. 1 is arranged in the print area P, and is configured such that ink is ejected by the recording head 300 to perform printing or the like.

FIG. 2 is a schematic exploded perspective view of the recording head 300. As shown in FIG. 2, the recording head 300 includes, for example, an upper case 310 and a lower case 320 that are case portions. A needle 311 that guides ink in the ink cartridge 106 shown in FIG. 1 is formed in the upper case 310, and the guided ink is supplied to the head unit 330, which will be described later, through the lower case 320. It becomes the composition which is done.
A PCB (printed circuit board) substrate 340 is disposed in the upper case 310 and the lower case 320. The PCB substrate 340 is electrically connected to, for example, TCP (tape carrier package) 350 and 360 which are flexible cable portions.
As shown in the figure, a plurality of, for example, two TCPs 350 and 360 are arranged, and are connected to the lower case 320 and the head unit 330 as described later. The TCPs 350 and 360 are formed of a flexible member that can be bent.
Further, ICs 351 and 361 are formed on the back side of TCP 350 and 360 in FIG. The ICs 351 and 361 are an example of a vibration signal supply unit for supplying a vibration signal for causing the actuator 331 to bend and vibrate, for example, which is an actuator unit.

A head unit 330 is disposed below the TCPs 350 and 360 in FIG. The head unit 330 has, for example, a nozzle plate 334 in which nozzles are formed, which are nozzle openings for discharging ink, on the lower side in the drawing. The nozzle plate 334 is an example of a nozzle forming unit. A plurality of nozzles are arranged on the nozzle plate 334, and the plurality of nozzles are grouped into at least one or more.
A supply plate 332 and a reservoir plate 333 for supplying ink and the like to the nozzle plate 334 are disposed on the nozzle plate 334. Accordingly, a pressure chamber forming portion having a plurality of pressure chambers connected to the nozzle is provided.
On the supply plate 332, a plurality of actuators 331 having a piezoelectric body that bends and vibrates when a voltage is applied are arranged. That is, when a voltage is applied to the actuator 331, the piezoelectric body is flexibly vibrated, and ink is ejected from the nozzles of the nozzle plate 334 by the vibration. The actuator 331 is disposed corresponding to the plurality of pressure chambers.
The actuator 331, the supply plate 332, the reservoir plate 333, and the nozzle plate 334 are bonded and integrated to form a head unit 330.
The TCPs 350 and 360 are formed so as to be arranged with respect to the grouped actuators 331, respectively.

The actuator 331 of the head unit 330 is connected to the TCPs 350 and 360 by bonding or the like. In addition, the head unit 330 is configured to receive ink and the like from the lower case 320 by being disposed below the lower case 320 via the TCPs 350 and 360.
Meanwhile, the head unit 330 is configured to be held by a cover 370 as shown in FIG. Further, the upper case 310, the lower case 320, and the like are configured to be fixed by screws 380.

FIG. 3 is a schematic perspective view showing a state in which the upper case 310 is removed from the recording head 300 of FIG. 2, and FIG. 4 is a schematic side view of the recording head 300 of FIG.
As shown in FIG. 3, the two TCPs 350 and 360 are arranged in a bent state at two locations in a crank shape. Specifically, the TCPs 350 and 360 include case fixing portions 352 and 362 that are fixed to the lower case 320 via the PCB substrate 340, as shown in FIG. Further, TCP main bodies 353 and 363 configured to be bent from the case fixing portions 352 and 362 are provided. The TCP main bodies 353 and 363 have ICs 351 and 361 on the back surface thereof as described above.
Further, as shown in FIG. 3, the flexible cable connecting portion is formed to be connected to the lower side which is one end side of the TCP main bodies 353 and 363 and connected to the actuator 331 of FIG. Actuator connection portions 354 and 364 are formed in the TCP 350 and 360, respectively.
4, bending portions 355 and 365 that can be bent are formed between the actuator connection portions 354 and 364 and the TCP main bodies 353 and 363, and these bending portions 355 and 365 connect the TCP 350 and 360 to each other. It is formed by bending.

Also, the bending angles of the bent portions 355 and 365 of the TCPs 350 and 360 shown in FIGS. 3 and 4 are different between the TCP 350 and the TCP 360. For example, as shown in FIG. 4, the bent portion 355 of the TCP 350 is formed at an angle of 5 ° (degrees), whereas the bent portion 365 of the TCP 360 is formed at an angle of 10 ° (degrees).
Further, the bent portion 355 of the TCP 350 and the bent portion 365 of the TCP 360 are disposed on different virtual surfaces. For example, as shown in FIG. 4, the bent portion 355 and the bent portion 365 are arranged such that the distances between the respective bent points 355a and 365a and the right end portions 354a and 364a of the actuator connecting portions 354 and 364 are different. ing. For this reason, the bending parts 355 and 365 are arrange | positioned so that it may not contact mutually.
Similarly, the TCP main bodies 353 and 363 are arranged so as not to contact each other.
In this way, the bending portions 355 and 365 are formed with bending angles so that they do not contact each other, and the TCP main bodies 353 and 363 do not contact each other. Therefore, as shown in FIG. , 362 are also arranged at different positions.

The recording apparatus 100 according to the present embodiment is configured as described above, and an operation example thereof will be described below.
In FIG. 5, nozzle rows 334a to 334f are formed for six colors (black (Bk), cyan (C), light cyan (Lc), magenta (M), light magenta (Lm), and yellow (Y)). It is a schematic explanatory drawing which shows the example which changes the nozzle plate 334 into the nozzle row 434a thru | or 434f for 4 colors (black (Bk), cyan (C), magenta (M), and yellow (Y)). FIG. 5A shows an arrangement example of six colors, and FIG. 5B shows an arrangement example of four colors.
As shown in FIG. 5A, in the case of a nozzle plate 334 that discharges six colors, the upper ends of the nozzle rows 334a to 334f are arranged at the same position (L). Different color inks are ejected.

FIG. 5B shows a nozzle plate 434 having four colors for increasing the resolution.
At this time, the nozzle rows 434b and 434c are changed from cyan (C) and light cyan (Lc) to black (Bk), and the nozzle rows 434a and 434b are different in length from the upper end position (L). Changed to go down.
At this time, if only the ink color is changed, the change can be made only by changing the ink cartridge 106 in FIG. 1. However, since the positions of the nozzle rows 434a and 434b are changed, the actuator 331 for ejecting ink from the nozzles is changed. It is necessary to adjust the position of the corresponding TCP 350, 360.
Conventionally, at this time, it is necessary to prepare a new TCP in accordance with the position of the new nozzle row 434a or the like, which increases the cost. However, in the present embodiment, it is possible to cope with the problem by adjusting the positions of the two TCPs 350 and 360 in accordance with the nozzle row 434a and the like, so that an increase in cost can be avoided.

At this time, in the present embodiment, the end portions of the actuator connecting portions 354 and 364 of the two TCPs 350 and 360 can be arranged so as to contact and overlap each other as shown in FIG.
Conventionally, when two TCPs are arranged, a gap or the like is generated between them, so that the width direction becomes long and the recording head 300 may be enlarged.
However, in this embodiment, since the end portions of the actuator connection portions 354 and 364 of the TCPs 350 and 360 can be arranged so as to overlap with each other, the recording head 300 is prevented from being enlarged.

On the other hand, when the TCPs 350 and 360 are in contact with each other and overlap each other, a harmful effect occurs. That is, when the TCP main bodies 353 and 363 in FIG. 4 come into contact with each other and overlap each other, the TCPs 350 and 360 are peeled off, resulting in defective ink ejection from the nozzles.
Further, when the bent portions 355 and 365 shown in FIG. 4 of the TCP 350 and 360 are in contact with each other and overlap, the positions of the bent portions 355 and 365 are the actuator connection portions 354 bonded to the vibrating actuator 331, If it is close to 364, stress or the like is likely to occur in the direction in which the actuator connecting portions 354 and 364 are separated from the actuator 331.
In particular, when the bent portions 355 and 365 come into contact with each other, the stress increases and the actuator connecting portions 354 and 364 are easily peeled off from the actuator 331.

However, in the present embodiment, as shown in FIG. 4, the angles of the bent portions 355 and 365 are different from 5 ° (degrees) or 10 ° (degrees), so that the TCP bodies 353 and 363 overlap each other. Even if they are arranged, they do not come into contact with each other. Therefore, mutual interference between the TCPs 350 and 360 can be prevented, and ink ejection defects from the nozzles can be prevented.
In the present embodiment, the bent portion 355 and the bent portion 365 are arranged at positions different from the right end portion 354a of the actuator connecting portion 354, etc., as shown in FIG. There is no contact with each other. For this reason, the actuator connection portions 354 and 364 of the TCPs 350 and 360 are configured to be difficult to be separated from the actuator 331 due to stress or the like due to mutual contact between the bent portions 355 and 365.

Further, unlike the example of FIG. 5, when increasing the number of nozzle rows, for example, when the number of nozzle rows is changed from 6 to 8, etc., the number of nozzles increases, so ink is ejected from the nozzles. Therefore, a drive signal for that is required. For this reason, it is necessary to increase the size of the IC 351 in FIG. If the IC 351 or the like is increased in size as described above, there is a risk that reliability may be lowered.
However, in this embodiment, since two TCP 350 and the like are arranged, there is no need to increase the size of the IC 351 or the like compared to the case of one, so even if the number of nozzles increases due to an increase in the number of nozzle rows, the IC 351 or the like. Does not increase in size, and the reliability of the IC 351 or the like does not deteriorate.

FIG. 6 is a schematic explanatory diagram showing an operation example different from FIG. In FIG. 6A, four color ink rows 534a to 534d of black (Bk), cyan (C), magenta (M), and yellow (Y) are arranged in the same row (L1). Nozzle plate 534 is shown.
The nozzle plate 534 is a composite of black (Bk), cyan (C), magenta (M), and yellow (Y) and changed so that black (Bk) forms a thick line as shown in FIG. 6B. This is the nozzle plate 634.
As shown in FIG. 6B, the nozzle rows 634a and 634b are not in the same row (L2), but are arranged so that their positions are lowered so as to move downward in the figure.
At this time, as in the case of FIG. 5, the position can be changed by adjusting the positions of the TCPs 350 and 360.

  The present invention is not limited to the above-described embodiment. Furthermore, the above-described embodiments may be combined with each other. The present invention is not limited to an ink jet recording apparatus, but a recording head used in an image recording apparatus such as a printer, a color material ejecting head used in manufacturing a color filter such as a liquid crystal display, an organic EL display, and an FED (surface emitting). Electrode material ejecting heads used for electrode formation such as displays), liquid ejecting apparatuses using liquid ejecting heads for ejecting liquids such as bioorganic ejecting heads used for biochip manufacturing, sample ejecting apparatuses as precision pipettes, etc. Applicable.

1 is a schematic perspective view illustrating an ink jet recording apparatus according to an embodiment of a liquid ejecting apparatus of the invention. FIG. 2 is a schematic exploded perspective view of a recording head. FIG. 3 is a schematic perspective view showing a state where an upper case is removed from the recording head of FIG. 2. FIG. 4 is a schematic side view of the recording head of FIG. 3 viewed from the direction of an arrow. It is a schematic explanatory drawing which shows the example which changes the nozzle plate in which 6 colors were formed into the nozzle row for 4 colors. It is a schematic explanatory drawing which shows the operation example different from FIG. 3 is a schematic diagram illustrating an arrangement example of nozzle rows formed on a nozzle plate 11. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Inkjet recording apparatus, 101 ... Carriage, 102 ... Carriage motor, 103 ... Timing belt, 104 ... Guide member, 105 ... Platen, 106 ... Ink cartridge, 200 ... Recording paper, 300 ... Inkjet recording head, 310 ... Upper case, 311 ... Needle, 320 ... Head unit, 331 ... Actuator, 332 ... Supply plate, 333 ... .. Reservoir plate, 334, 434, 534, 634 ... Nozzle plate, 334a to 334f, 434a to 434f, 534a to 534d, 634a to 634d ... Nozzle array, 340 ... PCB substrate, 350, 360 ..TCP, 351, 361 ... IC, 352, 362 ... Fixed portion, 353, 363 ... TCP body, 354, 364 ... actuator connecting portion, 354a, 364a ... right end portion, 355, 365 ... bent portion, 355a, 365a ... bent point, 370 ... cover, 380 ... screw.

Claims (3)

A plurality of nozzle openings for discharging liquid, and a nozzle forming portion in which the plurality of nozzle openings are grouped into at least one or more;
A pressure chamber forming portion having a plurality of pressure chambers connected to the nozzle opening;
An actuator unit that is arranged corresponding to the plurality of pressure chambers and has a plurality of actuators that vibrate to discharge the liquid from the nozzle openings;
A case portion for supplying the liquid to the head unit portion;
A liquid ejecting head having a flexible cable part connected to the case part and the head unit part and having a vibration signal supply means for supplying a vibration signal for the actuator to vibrate,
A plurality of the flexible cable portions are formed so as to be arranged for the grouped actuators, respectively, and the flexible cable portion is
A flexible cable body having the vibration signal supply means;
A flexible cable connecting portion formed to be connected to one end of the flexible cable body and connected to the head unit portion;
Between the flexible cable body and the flexible cable connecting portion, a bendable bending portion is disposed,
The liquid ejecting head according to claim 1, wherein a bending angle of the bending portion is different for each of the flexible cable portions. Each flexible cable connecting portion of the plurality of flexible cable portions is bonded to the actuator portion,
The liquid ejecting head according to claim 1, wherein each of the bent portions of the plurality of flexible cable portions is disposed on a different surface. A plurality of nozzle openings for discharging liquid, and a nozzle forming portion in which the plurality of nozzle openings are grouped into at least one or more;
A pressure chamber forming portion having a plurality of pressure chambers connected to the nozzle opening;
An actuator unit that is arranged corresponding to the plurality of pressure chambers and has a plurality of actuators that vibrate to discharge the liquid from the nozzle openings;
A case portion for supplying the liquid to the head unit portion;
A liquid ejecting apparatus comprising: a liquid ejecting head having a flexible cable portion connected to the case portion and the head unit portion and having a vibration signal supply means for supplying a vibration signal for vibrating the actuator. ,
A plurality of the flexible cable portions of the liquid ejecting head are formed so as to be arranged with respect to the grouped actuators, respectively,
A flexible cable body having the vibration signal supply means;
A flexible cable connecting portion formed to be connected to one end of the flexible cable body and connected to the head unit portion;
Between the flexible cable body and the flexible cable connecting portion, a bendable bending portion is disposed,
The liquid ejecting apparatus according to claim 1, wherein a bending angle of the bending portion is different for each of the flexible cable portions.

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