JPH09150519A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a printer in which an adhesive layer is bonded sufficiently to a matter to be bonded and the reliability is enhanced by reducing defective print while enhancing the yield of manufacture. SOLUTION: Protrusions 78, lower than the thickness of an adhesive layer 76, are formed at least a part of the periphery of a nozzle and a pressure chamber on at least one opposing face of a base member 71 or a cover member 77, the peripheral part of a delivery port on at least one opposing face of a print head or an orifice plate, or the peripheral part of pressure chamber on at least one opposing face of base member or orifice plate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer device provided with a print chamber having a pressure chamber into which a recording liquid is introduced and a nozzle communicating with the pressure chamber. Specifically, when adhering the members constituting the printer device, it is possible to improve the degree of adhesion between the adhesive layer and the adherend by providing the adherend with a convex portion having a height lower than the thickness of the adhesive layer. The present invention relates to a printer device having high reliability and good manufacturing yield.

[0002]

2. Description of the Related Art In recent years, especially in offices and the like, document creation using a computer called desktop publishing has become popular, and recently, not only letters and figures but also a natural color like a photograph is displayed. There is also an increasing demand for outputting images together with characters and figures. Along with this, it is required to print a high-quality natural image, and reproducing halftones is becoming important.

Further, a so-called on-demand type printer device, in which ink droplets are ejected from nozzles to print on a print medium such as paper or film only when necessary in accordance with a print signal, is small in size and low in cost. Since it can be made into a new material, it is rapidly spreading in recent years.

Various methods have been proposed for discharging ink droplets as described above, and a method using a piezo element or a method using a heating element is generally used.
The former is a method in which pressure is applied to ink to discharge it by deformation of a piezo element. The latter is a method in which the ink is ejected at a pressure of bubbles generated by heating and boiling the ink by the heating element.

Various methods have been proposed as a method for reproducing the above-mentioned halftone with the above-mentioned on-demand type printer device for ejecting ink droplets. That is, the first method is to control the size of a droplet to be ejected by changing the voltage or the pulse width of the voltage pulse applied to the piezo element or the heating element, and to express the gradation by changing the diameter of the print dot. To be

However, according to this method, if the voltage or pulse width applied to the piezo element or the heating element is too low, ink cannot be ejected, so that the minimum droplet diameter is limited, and the number of gradation stages that can be expressed is small. Expression of low density is difficult, and it is not enough to print out a natural image.

As a second method, one pixel is constituted by a matrix of, for example, 4 × 4 dots without changing the dot diameter, and gradation expression is performed in a unit of this matrix using a so-called dither method. Method. In this case, expression of 17 gradations is possible.

However, in this method, for example, when printing is performed at the same dot density as in the first method, the resolution becomes the first.
And the roughness is conspicuous, which is insufficient for printing out a natural image.

[0009]

Therefore, the inventors of the present invention control the density of printed dots by changing the density of the discharged ink droplets by discharging the diluted liquid and the ink while mixing them. It has been proposed to provide a printer device of a system that enables to achieve the above, expresses gradation without causing deterioration of resolution, and prints out a natural image.

An example of a print head of such a printer device is shown in FIG. Here, an example of a so-called carrier jet type printer device that ejects while mixing ink with a diluting liquid will be described.

That is, in the main body 121, the first pressure chamber 122 into which the diluting liquid is introduced, the first nozzle 123 communicating with the first pressure chamber 122, and the second pressure chamber 124 into which the ink is introduced are connected to the first pressure chamber 122. The second nozzle 125 is the first nozzle 12
3 and the opening tip of the second nozzle 125 are formed adjacent to each other.

In order to print with this print head, first, pressure is applied to the second pressure chamber 124 by a pressure applying means (not shown), and a predetermined amount of ink is formed to form dots of a predetermined density. The second nozzle 12
No. 5 toward the first nozzle 123, and then pressure is applied to the first pressure chamber 122 by a pressure applying unit (not shown) to mix the diluent and the ink discharged from the first nozzle 123. Then, a mixed solution is prepared, and the mixed solution is discharged toward a printing medium such as paper, and the mixed solution is adhered to perform printing.

By the way, such a print head is
Usually, it is configured as shown in FIG. That is, the first pressure chamber (not shown) and the first nozzle 123 that communicates with the first pressure chamber (not shown) and the second pressure chamber (not shown) that communicates with the second pressure chamber (not shown) so as to face the one main surface 126a of the plate-shaped base member 126. Recess 12 for forming nozzle 125
7, 128 are formed respectively. A lid member 130 such as a diaphragm is arranged on the recess forming surface 126a with an adhesive layer 129 interposed therebetween. Therefore, the recess 127,
By the space surrounded by 128 and the lid member 130, the first
The pressure chamber and the first nozzle 123 are formed, and the second pressure chamber and the second nozzle 125 are formed.

The adhesive layer 129 is often formed of a dry film resist, and the dry film resist, the base member 126 and the lid member 130 are used.
Adhesion between the layers is usually performed by means of a combination of thermal lamination and hot pressing.

However, if the thermal laminating conditions are not appropriate, the dry film resist will not adhere well to the base member 126 and the lid member 130.

In particular, when the adhesion between the partition wall portion 131 between the first nozzle 123 and the second nozzle 125 and the adhesive layer 129 shown by the thick line portion in FIG.
There is a possibility that the diluting liquid in the nozzle 123 and the ink in the second nozzle 125 may be mixed with each other in a portion other than the mixing portion while being transmitted through the gap portion in the partition wall portion 131, and thus the concentration control accuracy during printing may be reduced. This causes a decrease in printing quality and causes a print failure. Further, if such a defective print head is manufactured, the manufacturing yield is reduced, which causes a decrease in productivity.

Since the print head of the printer device that ejects ink droplets of only the conventionally used ink is manufactured in substantially the same manner as the above-mentioned print head, the adhesion between the base member and the lid member is defective. Could be. If the adhesion is poor in this way, the pressure chamber and the nozzle are not tightly sealed, and when pressure is applied to the ink chamber to eject ink, pressure relief or liquid leakage from the pressure chamber occurs. It may cause print failure. Further, it causes a decrease in manufacturing yield, which causes a decrease in productivity.

Therefore, the present invention has been proposed in view of the conventional circumstances, and the adhesive layer and the object to be adhered are sufficiently adhered to each other, and printing defects are less likely to occur, and the reliability is high.
An object of the present invention is to provide a printer device having a good manufacturing yield and a good productivity.

[0019]

As a result of intensive studies made by the present inventors in order to achieve the above-mentioned object, as a result, in a printer, a portion of an adherend, such as a pressure chamber or a nozzle, which is required to be hermetically sealed, is required. By forming a convex part whose height is lower than the thickness of the adhesive layer at a position corresponding to the surroundings, the adhesion between the adhesive layer and the adherend is sufficient, and printing defects etc. are less likely to occur and reliable. It has been found that it is possible to obtain a printer device having high productivity, good manufacturing yield and good productivity.

As the printer device, in addition to the printer unit constituted by only the print head as described above, an orifice plate having a discharge port which is a through hole communicating with the nozzle is disposed on the nozzle opening surface side of the print head. There are also those including an orifice plate having a nozzle and a base member.

In such a printer device, the orifice plate and the print head or the base member are adhered to each other by an adhesive layer such as a dry film resist, and it is required that the ejection port of the orifice plate or the vicinity of the nozzle be hermetically sealed. There is. Therefore, even in such a printer device, a convex portion whose height is lower than the thickness of the adhesive layer is provided at a position corresponding to the periphery of a portion of the adherend to be sealed, such as a discharge port or a nozzle. If it is formed, it seems that the adhesion between the adhesive layer and the adherend can be made sufficient.

That is, according to the present invention, at least one concave portion forming a pressure chamber into which a recording liquid is introduced and a nozzle communicating with the pressure chamber is formed so as to face one main surface, and the concave portion forming surface of the base member is formed. At least one of a base member and a lid member of a printer device having a print head in which a lid member is disposed on the side with an adhesive layer, and a space surrounded by the recess and the lid member serves as a pressure chamber and a nozzle. The convex portion whose height is lower than the thickness of the adhesive layer is formed on at least a part of the position corresponding to the peripheral portion of the concave portion on the facing surface side.

Further, according to the present invention, an adhesive layer having at least one penetrating portion forming a set of a pressure chamber into which the recording liquid is introduced and a nozzle communicating with the pressure chamber is arranged on the base member. A base member or a lid of a printer having a print head in which a space formed by closing the top and bottom of the penetrating portion with the base member and the lid member is a pressure chamber and a nozzle. At least a part of the position corresponding to the peripheral portion of the penetrating portion on the opposing surface side of at least one of the members, a convex portion whose height is lower than the thickness of the adhesive layer is formed. is there.

Further, according to the present invention, at least one set of a pressure chamber into which the recording liquid is introduced and a nozzle communicating with the pressure chamber is provided.
At least a print head or an orifice plate of a printer apparatus in which an orifice plate having discharge ports communicating with the nozzles is disposed on a nozzle opening surface side of a print head having two nozzles through an adhesive layer. It is characterized in that a convex portion whose height is lower than the thickness of the adhesive layer is formed at a position corresponding to the periphery of the ejection port on one of the facing surfaces.

Furthermore, according to the present invention, an adhesive layer having at least one penetrating portion that forms a pressure chamber into which the recording liquid is introduced is arranged on the base member, and is further disposed at a position corresponding to the penetrating portion. At least one of a base member and an orifice plate of a printer device having a print head in which an orifice plate having nozzles is arranged, and a space formed by closing the top and bottom of a penetrating portion with the base member and the orifice plate is a pressure chamber. The convex portion whose height is lower than the thickness of the adhesive layer is formed on at least a part of the position corresponding to the peripheral portion of the through portion on the facing surface side.

In these printers of the present invention, the first pressure chamber into which the ejection medium is introduced, the first nozzle communicating with the first pressure chamber, and the second nozzle into which the metering medium is introduced. There is at least one nozzle set of a pressure chamber and a second nozzle that communicates with the second pressure chamber, and a position corresponding to an adjacent concave portion or penetrating portion, or a first nozzle and a second nozzle are provided. A convex portion may be formed at a position corresponding to the periphery of at least one of the corresponding ejection ports.

In the printer device of the present invention, a convex portion having a height lower than the thickness of the adhesive layer is formed on at least a part of a portion of the opposing surface of at least one of the base member and the lid member, which is the periphery of the pressure chamber and the nozzle. Therefore, when the base member and the lid member are laminated with the adhesive layer interposed between the base member and the lid member, the pressure between the base member and the lid member is stronger than in other portions in this convex portion forming portion. The degree of adhesion between the adhesive layer and the base member and the lid member becomes high, the adhesive strength between the adhesive layer and the base member and the lid member becomes good, and the pressure chamber and the nozzle are sufficiently sealed.

In the printer of the present invention,
Since the convex portion having a height lower than the thickness of the adhesive layer is formed in a portion around the discharge port on at least one of the facing surfaces of the print head or the orifice plate, the orifice plate and the print head are provided with the adhesive layer. When laminated via, in this convex portion forming portion, the pressure between the orifice plate and the print head is stronger than in other portions, and the adhesiveness between the adhesive layer and the orifice plate and the print head becomes high, The adhesive strength between the adhesive layer, the orifice plate and the print head becomes good, and the ejection port is sufficiently sealed.

Further, in the printer apparatus of the present invention, when the adhesive layer having the penetrating portion forming the pressure chamber is arranged on the base member, and the orifice plate having the nozzle is further arranged thereon. Since a convex portion having a height lower than the thickness of the adhesive layer is formed in at least a part of a position corresponding to the peripheral portion of the penetrating portion on the opposing surface side of at least one of the base member or the orifice plate, In this convex portion forming portion, the pressure between the base member and the orifice plate is stronger than that in the other portions, the adhesion between the adhesive layer and the base member and the orifice plate becomes higher, and the adhesive layer, the base member and the orifice plate become stronger. The plate has good adhesive strength and the pressure chamber is sufficiently sealed.

In the printer device of the present invention, the first pressure chamber into which the ejection medium is introduced, the first nozzle communicating with the first pressure chamber, and the second pressure chamber into which the metering medium is introduced. And a second nozzle that communicates with the second pressure chamber, and if a convex portion is formed at a position corresponding to an adjacent concave portion or penetrating portion, the space between the first and second pressure chambers is increased. ,
There is sufficient isolation between the first and second nozzles.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, the liquid jet recording apparatus equipped with the printer device of the present invention constitutes a printer 2 of the present invention, and a drum 2 for supporting a print paper 1 which is an object to be printed. It is mainly configured by the print head unit 3 for recording on the print paper 1.

At this time, the print paper 1 is the drum 2
The paper is pressed and held on the drum 2 by a paper pressure roller 4 provided in parallel to the axial direction. A feed screw 5 is provided near the outer periphery of the drum 2 in parallel with the axial direction of the drum 2. The print screw 3 holds the feed screw 5. That is, the print head unit 3 is moved in the axial direction of the drum 2 by the rotation of the feed screw 5, as indicated by the arrow M in the figure.

On the other hand, the drum 2 includes a pulley 6, a belt 7,
It is rotationally driven by a motor 9 via a pulley 8 as indicated by an arrow m in the figure. Further, the rotation of the feed screw 5 and the motor 9 and the print head unit 3 are driven and controlled by a head drive, a head feed control, and a drum rotation control 10 based on print data and a control signal 11.

In the above arrangement, when the print head unit 3 moves to print one line, the drum 2 is rotated by one line to print the next line. When the head 3 moves and prints, there is a case of one direction and a case of a reciprocating direction.

A block diagram of a printing and control system in such a liquid jet recording apparatus is shown in FIG. The signal input 21 such as print data is input to the signal processing control circuit 22,
The signal processing control circuit 22 arranges them in the printing order and sends them to the head 24 via the driver 23. The printing order differs depending on the configuration of the head 24 and the printing unit, and also has a relationship with the input order of the printing data. If necessary, the printing order is temporarily recorded in a memory 25 such as a line buffer memory or a one-screen memory and then taken out. To the head 24, a gradation signal and an ejection signal are input.

When the number of nozzles is very large in a multi-head, an IC is mounted on the head 24 to reduce the number of wirings connected to the head 24. Further, a correction 26 is connected to the signal processing control circuit 22 so that γ correction,
Color correction in the case of color, variation correction of each head, and the like are performed. In the correction 26, the predetermined correction data is
It is generally stored in the M map format and taken out in accordance with external conditions such as nozzle number, temperature, and input signal.

The signal processing control circuit 22 is a CPU or DSP.
Generally, the processing is performed by software, and the processed signal is sent to various control motor drives and the like 27. In various control motor drive and others 27, control such as drive of a motor for rotatingly driving a drum and a feed screw, synchronization, cleaning of a head, supply and discharge of print paper, and the like are performed. Further, it goes without saying that the signals include an operation unit signal other than print data and an external control signal.

Next, the structure of the print head unit 3 which constitutes the printer of this embodiment will be described. However, here, an example in which the print head unit 3 is configured by a so-called carrier jet type print head that ejects a mixture of ink and diluent is described. As shown in FIG. 3, the print head mixes and ejects ink and diluent, and has a pressure chamber unit 31 having two pressure chambers, a first piezo unit 32 and a second pressure chamber 32 corresponding to the two pressure chambers. The piezo unit 33 of FIG.

The pressure chamber unit 31 mixes and ejects the ink and the diluting liquid as described above, and as shown in an enlarged view in FIG. 34 and the first inlet 3 communicating with this
5, a second nozzle 36 serving as, for example, an ink ejection port, and a plate-shaped orifice plate 38 in which a second introduction port 37 communicating with the second nozzle 36 is formed substantially in the center, and a pressure chamber as shown in FIG. The side walls 39a, 39b, 39c, 39d, 39e are formed as partition walls to form, for example, a diluting liquid flow path.
The pressure chamber 40, the second pressure chamber 41 serving as an ink flow path, and the vibration plate 42.

In the orifice plate 38, one end of each of the first and second nozzles 34 and 36 faces one main surface 38a serving as a printing surface, as shown in an enlarged view in FIG. One end of each of the first and second inlets 35 and 37 communicating with the second nozzles 34 and 36 has the one main surface 38.
The one main surface 38b facing a is exposed.
Therefore, the first inlet 35 and the first nozzle 34 penetrate the orifice plate 38 as a whole, and the second inlet 3
The seventh and second nozzles 36 also penetrate the orifice plate 38 as a whole. The first and second nozzles 34, 36 are formed such that the angle between the opening directions indicated by θ in FIG. 4 is, for example, 45 °.

Further, in the orifice plate 38, as shown in FIG. 3, the first and second nozzles 3 are provided.
4, 36, the first and second inlets 35, 37 are sandwiched, for example, a first supply chamber 43 having a substantially U-shaped cross section serving as a diluting liquid reservoir and a first supply chamber 43 having a substantially U-shaped cross section serving as an ink reservoir, for example. Two
The supply chamber 44 of the first main surface 38 whose opening is the printing surface
It is formed so as to face the one main surface 38b facing a.

At this time, pressure chamber side walls 39a, 39b, 39c, 39d, 39e are formed as a partition wall on the one main surface 38b side of the orifice plate 38 as described above, and the pressure chamber side walls 39a, 39b are formed. , 39c, 3
Connect the opening of the first supply chamber 43 and the opening of the first inlet 35 by the portions where 9d and 39e are not formed,
A first pressure chamber 40 that serves as a flow path is formed, and a second pressure chamber 41 that serves as a flow path is formed by connecting the opening of the second supply chamber 44 and the opening of the second introduction 37. The Rukoto. The pressure chamber side walls 39a, 39b, 3
9c, 39d and 39e are composed of a dry film resist which also functions as an adhesive layer for the orifice plate 38 and the diaphragm 42. This pressure chamber side wall 39a,
39b, 39c, 39d and 39e may be made of an epoxy-based sheet adhesive.

Further, the pressure chamber side walls 39a, 39b,
A vibration plate 42 is laminated on 39c, 39d and 39e to close the first and second pressure chambers 40 and 41.

At this time, in the print head portion 3 of the printer device of this example, as shown in FIG. 4, the first inlet port 3 on the one main surface 38b side of the orifice plate 38 is provided.
5 and the second inlet 37, the side wall 39 having a height lower than the thickness of the side wall 39c which also functions as an adhesive layer is used.
The convex portion 53 having a height half the thickness of c is provided.

Further, the first piezo unit 32 is
A first laminated piezo element 45 in the form of a plate in which piezoelectric materials and conductive materials are alternately laminated, a first support 46 for fixing one end of the first laminated piezo element 45, And a first holder 47 for fixing the first support 46 to which the laminated piezo element 45 is fixed to the pressure chamber unit 31. The same applies to the second piezo unit 33, in which one end of a second laminated piezo element 48 is fixed to a second support 49, and these are attached to the pressure chamber unit 31 by a second holder 50. Fixed.

The first and second laminated piezo elements 45,
Reference numeral 48 denotes a layer obtained by laminating a piezoelectric material and a conductive material in a direction orthogonal to the longitudinal direction of the first and second pressure chambers 40 and 41;
Alternatively, either one laminated in a direction parallel to the longitudinal direction may be used. The laminated piezo element has a characteristic of extending in the laminating direction when a voltage is applied.

Therefore, the former laminated piezo element expands in the longitudinal direction of the first and second pressure chambers 40 and 41 by the application of a voltage, but contracts in the direction orthogonal thereto. Therefore, this laminated piezo element does not apply pressure to the pressure chamber. Such a piezo element is called a d ₃₁ mode.

On the other hand, in the latter laminated piezoelectric element,
When a voltage is applied, the first and second pressure chambers 40 and 41 extend in a direction orthogonal to the longitudinal direction and apply pressure to the pressure chambers. Such a piezo element is called a d ₃₃ mode.

The first laminated piezo element 45 is arranged so as to face the first pressure chamber 40 via the diaphragm 42, and the second laminated piezo element 48 is also arranged in the diaphragm 42.
It is arranged so as to face the second pressure chamber 41 via.

Therefore, in the print head unit 3 having the above-described structure, for example, the diluent is supplied from the diluent tank (not shown) through the supply pipe (not shown) and the supply groove (not shown).
To the first nozzle 34 communicating with the first inlet port 35 through the first pressure chamber 40 as shown in FIG. A first meniscus D ₁ is formed at the tip of the nozzle 34.

The same applies to one of the inks, and is supplied from the ink tank (not shown) to the second supply chamber 44 through the supply pipe and the supply groove (not shown), and from there, the second pressure chamber is supplied as shown in FIG. The second inlet 37 through 41
The second meniscus D _{2 at} the tip of the second nozzle 36 filled with the second nozzle 36 communicating with the second nozzle 36.
Is formed.

When printing is performed by the liquid jet recording apparatus having such a structure, for example, when the so-called d ₃₃ mode laminated piezo elements are used as the first and second laminated piezo elements 45 and 48, the driving voltage Figure 5 shows the application timing
Shown in

That is, as shown in FIG. 5 (a), at the time of standby before printing, at the time point shown in FIG.
For example, 10 [V] is applied to the laminated piezo element 45.

At the time of printing, based on the signals from the head drive, head feed control, and drum rotation control 10, the diluent 51 is drawn into the first nozzle 34 first (B) in the figure. At the time point indicated by, the applied voltage to the first laminated piezo element 45 is set to 0 [V]. As a result, the first laminated piezo element 45 shrinks and the first pressure chamber 4
The volume of 0 increases and the internal pressure becomes negative, and the diluent 51
Is drawn into the nozzle 34.

At the same time as this, or with a slight delay, FIG.
As shown in (b), the ink 52 is discharged from the second nozzle 36.
In order to extrude and extrude, the second laminated piezoelectric element 48 is driven with a driving voltage, for example, 10
[V] is given for 150 [μsec], the second laminated piezoelectric element 48 is elongated in the longitudinal direction, and the second laminated piezoelectric element 48 is expanded through the diaphragm 42.
The pressure chamber 41 is pressurized to apply the internal pressure to the second nozzle 36. Then, the ink 52 seeps out from the outside of the second nozzle 36 to the vicinity of the opening of the first nozzle 34, and a fixed amount is performed.

Thereafter, the ink 52 is placed in the second nozzle 36.
When the drive voltage of the second piezo element 48 is lowered to 0 [V] at the time point shown by (D) in the figure in order to draw in the ink, the ink remaining on the one main surface 38a of the orifice plate 38 is
Is drawn into the nozzle 36 to form the _second meniscus D ₂ . It should be noted that the ink quantitative pulse width shown by T in FIG. 5B and between the time point shown by (C) in the figure and the time point shown by (D) in the figure is variable.

Further, in this state, in order to discharge the diluting liquid 51 refilled in the first nozzle 34, as shown in FIG.
As shown in the inside, the first laminated piezo element 45 is changed from the time point indicated by (E) in the refilled state to the time point indicated by (F) in the figure.
As the drive voltage, for example, 20 [V] is set to 100 [μse
c] In addition, pressure is applied to the first pressure chamber 40 via the vibration plate 42, and internal pressure is applied to the first nozzle 34. As a result, at the time indicated by (G) in the figure, the diluent 51 is pushed out by the internal pressure in the first nozzle 34, and the quantified ink described above is integrated with the diluent 51 to form a droplet having a predetermined concentration. Is ejected as, and is deposited on the above-mentioned print paper 1 for printing.

Thereafter, when the voltage of the first laminated piezo element 45 is lowered to 10 [V] at the time indicated by (H) in the drawing in order to draw the diluting liquid 51 into the first nozzle 34, the first laminated layer is formed. Due to the contraction of the piezo element 45, the internal pressure of the first pressure chamber 40 and the first nozzle 34 becomes a negative pressure, whereby the diluent 51 is drawn into the first nozzle 34. After this,
The internal pressures of the first pressure chamber 40 and the first nozzle 34 return to their original values, and at the time points indicated by (I) and (J) in the figure, the diluent 51 is refilled in the first nozzle 34 due to a capillary phenomenon. To form a _first meniscus D ₁ .

Then, as shown in FIGS. 5 (a) and 5 (b), printing is performed by repeating the above operation at a cycle of, for example, 1 [msec].

On the other hand, the first and second laminated piezoelectric elements 4
5 and 48, the drive voltage application timing when the so-called d ₃₁ mode laminated piezo element is used is the same as the drive voltage application timing when the d ₃₃ mode laminated piezo element shown in FIG. 5 is used. It will be shown by the figure. This d ₃₁ -mode laminated piezo element shrinks in the direction orthogonal to the longitudinal direction of the first and second pressure chambers 40 and 41 when a voltage is applied. Therefore, when the aforementioned so-called d ₃₃ -mode laminated piezo element is used This is because the behavior is opposite to that of.

In the print head portion of the printer device of this embodiment, as described above, an adhesive layer is formed between the first introduction port 35 and the second introduction port 37 on the one main surface 38b side of the orifice plate 38. The convex portion 53 having a height half the thickness of the side wall 39c that also functions is provided.

In manufacturing such a print head portion, a dry film resist is thermally laminated on one of the facing surfaces of the orifice plate 38 or the vibrating plate 42, and then the dry film resist is exposed and developed. Then, a through-hole having a predetermined shape is formed to form each side wall. Further, the remaining one of the orifice plate 38 and the vibrating plate 42 is laminated on this dry film, and hot pressing or the like is applied to these so that the orifice plate 38 and the vibrating plate 42 are made of a dry film resist, and the pressure chamber is formed. A side wall 39a forming a penetrating portion to be formed,
It adheres via 39b, 39c, 39d, and 39e.

Therefore, in the process of thermal lamination or hot pressing, the convex portion 53 provided on the orifice plate 38 is embedded in the dry film resist, and the portion where the convex portion 53 is formed is hot. In the pressing process, the space between the diaphragm 42, which is the base member, and the orifice plate 38 is pressed more strongly than other portions, and the side wall 39 made of a dry film resist is used.
The degree of adhesion between a, 39b, 39c, 39d, 39e and the diaphragm 42 and the orifice plate 38 is increased, and the side wall 3
9a, 39b, 39c, 39d, 39e and the vibrating plate 42 and the orifice plate 38 have good adhesive strength, the first and second pressure chambers 40, 41 are sufficiently sealed, and the spaces between them are sufficiently isolated. To be done.

In other words, in the printer device of this embodiment, there is no inconvenience that the dilution liquid 51 in the first pressure chamber 40 and the ink 52 in the second pressure chamber 41 are mixed during printing standby. , It is difficult for print defects to occur. In addition, since it becomes difficult to manufacture a defective product, the manufacturing yield is unlikely to decrease, and the productivity is improved.

In the above example, the projection 53 is formed on the orifice plate 38.
The convex portion 53 may be provided on the diaphragm 42, or may be provided on both the orifice plate 38 and the diaphragm 42. However, in the case of providing both the orifice plate 38 and the vibration plate 42, it is necessary to sufficiently consider the formation position and height so that they do not come into contact with each other.

As the print head portion of the printer device of this embodiment, in addition to the above-mentioned one, a heating element is used as the diluting liquid ejecting means and the ink quantifying means.

That is, as shown in an enlarged manner in FIG. 6, penetrating portions 62, 63 having shapes corresponding to the first and second pressure chambers are provided at predetermined positions on the one main surface 61a side of the base member 61. The first and second nozzles 65 through the adhesive layer 64,
An example is a stack of orifice plates 67 having 66. Then, at this time, the opening of the penetrating portion 62 forming the first pressure chamber and the opening of the first nozzle 65 are made to coincide with each other, and the penetrating portion 63 forming the second pressure chamber is formed.
And the opening of the second nozzle 66 are aligned with each other,
The first pressure chamber and the first nozzle 65 communicate with each other, and the second pressure chamber and the second nozzle 66 communicate with each other.

Further, on the one main surface 61a side of the base member 61, the heating element 68 located inside the penetrating portion 62 forming the first pressure chamber and the penetrating portion 63 forming the second pressure chamber are located. The heating element 69 is formed.

Also in the print head portion of this example, one main surface 67 which is the surface facing the orifice plate 67.
The adhesive layer 6 is provided at a position corresponding to between the first and second penetrating portions 62 and 63 forming the first pressure chamber and the second pressure chamber of a.
The convex portion 70 having a height lower than the thickness of No. 4 is formed and embedded inside the side wall portion 64 a which is a part of the adhesive layer 64.

That is, also in the print head portion of the present example, the first and second pressure chambers are sufficiently sealed and the spaces between them are sufficiently isolated, as in the above-mentioned print head portion, and printing defects are caused. Hard to occur. In addition, since it becomes difficult to manufacture a defective product, the manufacturing yield is unlikely to decrease, and the productivity is improved.

In the above example, the example in which the convex portion 70 is formed on the orifice plate 67 has been described.
The convex portion 70 may be provided on the base member 61, or may be provided on both the orifice plate 67 and the base member 61. However, the orifice plate 6
7 and the base member 61, it is necessary to sufficiently consider the formation position and height so that they do not come into contact with each other.

Further, as the print head portion of the printer device of this embodiment, a type having no orifice plate and a type of mixing a diluting liquid and ink may be used.

That is, as shown in FIG. 7, a first pressure chamber (not shown) formed on the back side of the paper and a recess 73 for forming the first nozzle 72 communicating with the first pressure chamber, and a recess 73 on the back side of the paper. The second pressure chamber (not shown) to be formed and the recessed portion 75 for forming the second nozzle 74 communicating with the second pressure chamber are formed so as to face the one main surface 71a. A lid member 77, which is a vibrating plate, is laminated on the main surface 71a side via an adhesive layer 76, and the space surrounded by the recesses 73, 75 and the lid member 77 is the first and second pressure chambers and the first and second pressure chambers. The nozzles are second nozzles 72 and 74. At this time, the first and second nozzles 72, 73 side of the recesses 73, 75 are open facing the front side of the drawing. The adhesive layer 76 is preferably formed by a dry film resist or an epoxy-based sheet adhesive layer.

In the print head of the printer apparatus of this example, the thickness of the adhesive layer 76 is at least part of the periphery of the recesses 73, 75 on the one main surface 71a side of the base member 71, here the entire periphery. Low height projections 78,7
9 are formed.

The print head of the printer device of this example is
It is manufactured as follows. Here, an example in which the adhesive layer 76 is formed of a dry film resist will be described.

First, as shown in FIG. 8, a dry film resist 80 is thermally laminated on a lid member 77 made of glass or the like. At this time, recesses 73 and 75 for forming the pressure chambers and nozzles are formed so as to face the one main surface 71a, and a height of half the thickness of the dry film resist 80 is formed around the recesses 73 and 75. The base member 71 having the convex portions 78 and 79 is prepared.

Then, as shown by an arrow M ₁ in the figure, the lid member 77 is placed on the one main surface 71a side of the base member 71 so as to sandwich the dry film resist 80 therebetween. Subsequently, these are heated in a laminated state by means such as a hot press, and the base member 71, the adhesive layer 76, and the lid member 7 are heated.
7 are bonded together to complete the print head portion as shown in FIG.

Therefore, in the hot pressing process, the protrusions 78 and 79 provided on the base member 71 are embedded in the dry film resist 80, and the portions where the protrusions 78 and 79 are formed are formed. In the hot pressing process, the pressure between the base member 71 and the lid member 77, which is the vibration plate, is stronger than in other portions, and the adhesive layer 76 is pressed.
The adhesion between the cover member 77 and the base member 71 is high, the adhesive strength between the adhesive layer 76 and the cover member 77 and the base member 71 is good, and the first and second pressure chambers and the first and second pressure chambers are While the nozzles 72 and 74 are fully sealed,
There is sufficient isolation between these.

That is, in the printer apparatus of this example, there is no inconvenience that, for example, the diluent in the first nozzle 72 and the ink in the second nozzle 74 are mixed during printing standby, and printing is performed. It is difficult for defects to occur. In addition, since it becomes difficult to manufacture a defective product, the manufacturing yield is unlikely to decrease, and the productivity is improved.

In the above example, the base member 7
Although the example in which the convex portions 78 and 79 are formed in 1 is described, the convex portions 78 and 79 may be provided in the lid member 77, or may be provided in both the base member 71 and the lid member 77. . However, when it is provided on both the base member 71 and the lid member 77, it is necessary to sufficiently consider the formation position and height so that they do not come into contact with each other.

In the above examples, the example of the carrier jet type print head has been described as the print head portion, but the present invention uses the diluent as the quantitative medium,
It goes without saying that the present invention can also be applied to a printer device having a so-called density modulation type inkjet print head that uses ink as an ejection medium.

Further, as the print head portion of the printer device of this example, in addition to the above-described mixture and discharge of the diluting liquid and the ink, the one for discharging only the ink as ink droplets can be mentioned. An example of using a piezo element as the pressure applying means will be described here.

That is, as shown in FIG. 9, a pressure chamber (not shown) formed on the back side of the paper and a recess 83 for forming a nozzle 82 communicating with the pressure chamber are formed so as to face the one main surface 81a. A lid member 85 which is a vibrating plate is laminated on the one main surface 81a side of the plate-shaped base member 81 which is formed through an adhesive layer 84. At this time, the recess 8
The nozzle 82 side of No. 3 is open and faces the front side of the drawing. The adhesive layer 84 is preferably formed of a dry film resist or an epoxy-based sheet-shaped adhesive layer.

In the print head portion of the printer device of this embodiment, at least a part of the periphery of the concave portion 83 on the one main surface 81a side of the base member 81, here, the entire periphery is higher than the thickness of the adhesive layer 84. A convex portion 86 having a low height is formed.

The print head portion of this example is manufactured as follows. Here, an example in which the adhesive layer 84 is formed of a dry film resist will be described.

First, as shown in FIG. 10, a dry film resist 87 is thermally laminated on a lid member 85 made of glass or the like. At this time, a concave portion 83 for forming a pressure chamber and a nozzle is formed facing the one main surface 81a, and a convex portion 86 having a height half the thickness of the dry film resist 87 is formed around the concave portion 83. A base member 81 to be formed is prepared.

Then, as shown by an arrow M ₂ in the figure, the lid member 85 is placed on the one main surface 81a side of the base member 81 so as to sandwich the dry film resist 87 therebetween. Subsequently, these layers are heated in a laminated state by means such as a hot press to make the base member 81, the adhesive layer 84, and the lid member 85.
The spaces are adhered to complete the print head portion as shown in FIG.

Therefore, in the hot pressing process, the convex portion 86 provided on the base member 81 is embedded in the dry film resist 87, and the portion where the convex portion 86 is formed is subjected to hot pressing. In the process, the space between the base member 81 and the lid member 85, which is the vibrating plate, is pressed more strongly than other portions, and the adhesive layer 84 and the lid member 85 are pressed.
The adhesion between the base member 81 and the base member 81 is increased, and the adhesive layer 8
4, the lid member 85 and the base member 81 have good adhesive strength, and the pressure chamber and the nozzle 82 are sufficiently sealed.

That is, in such a printer device of this example, when pressure is applied to the pressure chamber to eject ink, pressure relief and liquid leakage from the pressure chamber are less likely to occur, and printing defects occur. Hard to occur. Further, the production yield is unlikely to be lowered and the productivity is improved.

In the above example, the base member 8
Although the example in which the convex portion 86 is formed in 1 is described, the convex portion 86 may be provided in the lid member 85, or may be provided in both the base member 81 and the lid member 85. However, when it is provided on both the base member 81 and the lid member 85, it is necessary to sufficiently consider the formation position and the height so that they do not come into contact with each other.

As the print head section for ejecting only ink as ink droplets as described above, the following ones are also included.

That is, as shown in FIG. 11, a penetrating portion 92 is formed on one main surface 91a side of the base member 91 at a position corresponding to a pressure chamber (not shown) formed on the back side of the paper and a nozzle communicating with the pressure chamber. A lid member 94, which is a diaphragm, is arranged with an adhesive layer 93 formed therebetween. A nozzle 95 that communicates with the pressure chamber is formed by closing the top and bottom of the penetrating portion 92 with the base member 91 and the lid member 94. At this time, the nozzle 95 side of the penetrating portion 92 faces the front side of the drawing and is open. The adhesive layer 93 is preferably formed of a dry film resist or an epoxy-based sheet-shaped adhesive layer.

In the print head portion of the printer device of this embodiment, the thickness of the adhesive layer 93 is at least part of the circumference of the penetrating portion 92 on the one main surface 91a side of the base member 91, here the entire circumference. The convex portion 96 having a low height is formed.

The print head portion of this example is manufactured as follows. Here, an example in which the adhesive layer 93 is formed of a dry film resist will be described.

First, as shown in FIG. 12, a dry film resist 97 is thermally laminated on a lid member 94 made of glass or the like. After that, this dry film resist 97
Is exposed and developed to form a penetrating portion 92 having a predetermined shape for forming a pressure chamber and a nozzle. At this time,
A base member 91 having a convex portion 96 having a height half the thickness of the dry film resist 97 is prepared at a position corresponding to the periphery of the penetrating portion 92 of the one main surface 91a. In addition,
The dry film resist 97 may be thermally laminated on the base member 91 first.

Then, as shown by an arrow M ₃ in the figure, the lid member 94 is placed on the one main surface 91a side of the base member 91 so as to sandwich the dry film resist 97 therebetween. Subsequently, these are heated in a laminated state by means such as hot pressing, and the base member 91, the adhesive layer 93, and the lid member 9 are heated.
The four are bonded together to complete the print head portion as shown in FIG.

Therefore, in the hot pressing process, the convex portion 96 provided on the base member 91 is embedded in the dry film resist 97, and the portion where the convex portion 96 is formed is hot-pressed. In the process, the space between the base member 91 and the lid member 94, which is the vibrating plate, is pressed more strongly than other portions, so that the adhesive layer 93 and the lid member 94.
And the degree of adhesion between the base member 91 and the adhesive layer 9 increases.
3, the adhesive strength between the lid member 94 and the base member 91 becomes good, and the pressure chamber and the nozzle 95 are sufficiently sealed.

That is, in such a printer device of the present embodiment, when pressure is applied to the pressure chamber to eject ink, pressure relief and liquid leakage from the pressure chamber are less likely to occur, and printing defects occur. Hard to occur. Further, the production yield is unlikely to be lowered and the productivity is improved.

In the above example, the base member 9
Although the example in which the convex portion 96 is formed in 1 is described, the convex portion 96 may be provided in the lid member 94, or may be provided in both the base member 91 and the lid member 94. However, when it is provided on both the base member 91 and the lid member 94, it is necessary to sufficiently consider the formation position and height so that they do not come into contact with each other.

As the print head section for ejecting only ink as ink droplets as described above, the following ones can also be mentioned.

That is, as shown in FIG. 13, a pressure chamber into which ink is introduced is formed, and a nozzle 102 communicating with the pressure chamber is located in one of the print heads 101 facing the one main surface 101a. On the main surface 101a side, the ejection port 1 is provided at a position corresponding to the nozzle 102 via the adhesive layer 103.
The orifice plate 105 having 04 is indicated by an arrow M _{4 in the} drawing.
As shown in FIG. The adhesive layer 103 is preferably formed of a dry film resist or an epoxy-based sheet adhesive layer.

In the print head portion of this example, the convex portion 106 having a height lower than the thickness of the adhesive layer 103 is formed at a position corresponding to the periphery of the ejection port 104 on the one main surface 101a side of the print head 101. Has been done.

In order to manufacture such a print head portion, first, a pressure chamber is formed inside by the integral molding or the method described above, and the nozzle 102 communicating with this pressure chamber faces the one main surface 101a. The print head 101 in which the convex portion 106 is formed at a position corresponding to the periphery of the ejection port 104 of the orifice plate 105 is manufactured. At this time, the adhesive layer 103 is thermally laminated on the orifice plate 105 having the ejection port 104 at a position corresponding to the nozzle 102. Then, the orifice plate 105 is placed on the print head 101 so that the ejection port 104 and the opening of the nozzle 102 are aligned and the adhesive layer 103 is sandwiched, and these are heated by means such as hot pressing. . As a result, the printhead 101 and the orifice plate 105 are separated by the adhesive layer 103.
Will be bonded through.

Therefore, in the print head portion of the present example, the print head 10 is used in the hot pressing process.
1 is embedded in the adhesive layer 103. In the portion where the protrusion 106 is formed, the print head 101 and the orifice plate in the hot pressing process are more than those in other portions. Pressure is strongly applied between the adhesive layers 105, the adhesion between the adhesive layer 103 and the orifice plate 105 and the print head 101 is increased, the adhesive strength between the adhesive layer 103, the orifice plate 105 and the print head 101 is improved, and the ejection port 1
04 is fully sealed.

That is, in such a print head portion, the orifice plate 105 is used when ink is ejected.
Ink leakage or pressure escape from the ejection port 104 is unlikely to occur, and printing failure is unlikely to occur. Furthermore, since the production yield is unlikely to decrease, the productivity becomes good.

In the example described above, the convex portion 106 is formed on the print head 101.
The convex portion 106 may be provided on the orifice plate 105, or may be provided on both the print head 101 and the orifice plate 105. However,
When it is provided on both the print head 101 and the orifice plate 105, it is necessary to sufficiently consider the formation position and height so that they do not come into contact with each other.

In the above examples, the example of the print head section which mainly uses the piezo element as the pressurizing means for the ink in the pressure chamber has been described, but as the print head section of the printer apparatus of this example, It is also possible to use a heating element as the pressing means.

This print head portion is a so-called thermal type print head, and for example, as shown in FIG. 14, a penetrating portion 112 for forming a pressure chamber is formed on one main surface 111a of the base member 111. Adhesive layer 11
3 is laminated, and an orifice plate 115 having a nozzle 114 is further laminated thereon.
Then, by aligning the positions of the penetrating portion 112 and the nozzle 114, and sandwiching the penetrating portion 112 between the base member 111 and the orifice plate 115 from the vertical direction, the pressure chamber 116 is formed.
And the pressure chamber 116 and the nozzle 114.
Is in communication.

Further, one main surface 1 of the base member 111.
On the 11a side, the heating element 117 is arranged so as to be located inside the penetrating portion 116.

In the print head portion of this example, one main surface 1 which is the surface facing the orifice plate 115.
A convex portion 118 having a height lower than the thickness of the adhesive layer 113 is formed at a position corresponding to the periphery of the penetrating portion 112 on the 15a side.

In order to manufacture such a print head portion, first, as shown in FIG. 15, the base member 1 having the heating element 117 formed at a predetermined position on the one main surface 111a side.
The dry film resist 11 is formed on the one main surface 111a side of
9 is heat-laminated, and thereafter, exposure and development are performed to form a penetrating portion 112 having a predetermined shape to form a pressure chamber.
Are formed so as to expose.

At this time, the orifice plate 115 in which the nozzle 114 is formed at a predetermined position and the convex portion 118 is formed at a position corresponding to the periphery of the penetrating portion 112 of the one main surface 115a serving as the facing surface is also prepared.

Subsequently, the orifice plate 115 is placed on the one main surface 111a side of the base member 111 via the dry film resist 119 so that the nozzle 114 and the penetrating portion 112 are aligned with each other, and means such as hot pressing is performed. The orifice plate 115, the adhesive layer 113, and the base member 111 are bonded together by heating.

Therefore, in the print head portion of this example, the convex portion 118 provided on the orifice plate 115 is embedded in the dry film resist 119 in the hot pressing process, and the convex portion 118 is formed. In the hot pressing step, the pressure between the base member 111 and the orifice plate 115 is stronger than in the other parts in the hot pressing process, and the adhesiveness between the adhesive layer 113 and the orifice plate 115 and the base member 111 becomes higher. Adhesive layer 113 and orifice plate 11
5 and the base member 111 have good adhesive strength, and the pressure chamber 116 is sufficiently sealed.

That is, in such a print head portion, ink leakage or pressure escape from the pressure chamber is unlikely to occur when ink is ejected, and print defects are unlikely to occur. Furthermore, since the production yield is unlikely to decrease, the productivity becomes good.

In the above example, the convex portion 118 is formed on the orifice plate 115. However, the convex portion 118 may be provided on the base member 111, and the orifice plate 115 and the base member 1 may be provided.
You may make it provided in both 11 of them. However, when it is provided on both the orifice plate 115 and the base member 111, it is necessary to sufficiently consider the formation position and height so that they do not come into contact with each other.

[0118]

As is apparent from the above description, in the printer device of the present invention, at least a part of the pressure chamber on the opposing surface of at least one of the base member and the lid member and the portion around the nozzle are bonded. Since the convex portion having a height lower than the thickness of the agent layer is formed, when the base member and the lid member are laminated via the adhesive layer, this convex portion forming portion is more likely to be formed than other portions. The base member and the lid member are strongly pressed, the adhesiveness between the adhesive layer and the base member and the lid member is increased, the adhesive strength between the adhesive layer and the base member and the lid member is improved, and the pressure chamber and the nozzle are Well sealed.

In the printer device of the present invention,
Since the convex portion having a height lower than the thickness of the adhesive layer is formed in a portion around the discharge port on at least one of the facing surfaces of the print head or the orifice plate, the orifice plate and the print head are provided with the adhesive layer. When laminated via, in this convex portion forming portion, the pressure between the orifice plate and the print head is stronger than in other portions, and the adhesiveness between the adhesive layer and the orifice plate and the print head becomes high, The adhesive strength between the adhesive layer, the orifice plate and the print head becomes good, and the ejection port is sufficiently sealed.

Further, in the printer apparatus of the present invention, even when the adhesive layer having the penetrating portion forming the pressure chamber is arranged on the base member, and the orifice plate having the nozzle is further arranged thereon. Since a convex portion having a height lower than the thickness of the adhesive layer is formed in at least a part of a position corresponding to the peripheral portion of the penetrating portion on the opposing surface side of at least one of the base member or the orifice plate, In this convex portion forming portion, the pressure between the base member and the orifice plate is stronger than that in the other portions, the adhesion between the adhesive layer and the base member and the orifice plate becomes higher, and the adhesive layer, the base member and the orifice plate become stronger. The plate has good adhesive strength and the pressure chamber is sufficiently sealed.

In the printer device of the present invention, the first pressure chamber into which the ejection medium is introduced, the first nozzle communicating with the first pressure chamber, and the second pressure chamber into which the quantitative medium is introduced. And a second nozzle that communicates with the second pressure chamber, and if a convex portion is formed at a position corresponding to an adjacent concave portion or penetrating portion, the space between the first and second pressure chambers is increased. ,
There is sufficient isolation between the first and second nozzles.

Therefore, in these printers of the present invention, the pressure chambers, nozzles, discharge ports, etc. are sufficiently sealed, and ink leakage and pressure escape during printing are less likely to occur, and printing defects are less likely to occur, resulting in reliability. It is highly likely. Furthermore, since the production yield is unlikely to decrease, the productivity becomes good.

Further, when the printer of the present invention mixes and ejects the ejection medium and the quantitative medium, the nozzles ejecting these are sufficiently isolated from each other, so that the ejection medium and the quantitative medium are quantified at the time of printing standby or the like. Mixing of media is unlikely to occur, and this also prevents print defects from occurring.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a main part schematically showing an example of a liquid jet recording apparatus equipped with a printer device to which the invention is applied.

FIG. 2 is a block diagram of a printing and control system of an example of a liquid jet recording apparatus equipped with a printer device to which the present invention is applied.

FIG. 3 is a schematic cross-sectional view of an essential part showing an example of a print head part of a printer device to which the present invention is applied.

FIG. 4 is a schematic cross-sectional view of a main part showing an enlarged vicinity of an orifice plate of an example of a print head part of a printer to which the present invention is applied.

FIG. 5 is a chart showing an example of drive voltage application timings of an example of a print head unit of a printer to which the present invention is applied.

FIG. 6 is a schematic cross-sectional view of an essential part showing another example of the print head part of the printer device to which the invention is applied.

FIG. 7 is a schematic front view of a main part showing still another example of the print head unit of the printer device to which the present invention is applied.

FIG. 8 is a schematic front view of a main part of another example of the print head unit of the printer to which the invention is applied.

FIG. 9 is a schematic front view of a main part showing still another example of the print head unit of the printer device to which the present invention is applied.

FIG. 10 is a schematic front view of a main part of another example of the print head unit of the printer to which the invention is applied.

FIG. 11 is a schematic front view of a main part showing still another example of the print head part of the printer device to which the present invention is applied.

FIG. 12 is a schematic front view of a main part of another example of the print head unit of the printer to which the invention is applied.

FIG. 13 is an exploded perspective view showing still another example of the print head portion of the printer device to which the present invention is applied.

FIG. 14 is a schematic cross-sectional view of a main part showing still another example of the print head part of the printer device to which the present invention is applied.

FIG. 15 is a schematic cross-sectional view of a main part of another example of the print head unit of the printer to which the invention is applied, in an exploded manner.

FIG. 16 is a cross-sectional view schematically showing an example of a print head of the printer device.

FIG. 17 is a schematic cross-sectional view of an essential part schematically showing an example of the print head of the printer device.

[Explanation of symbols]

34, 65, 72 1st nozzle 36, 66, 74 2nd nozzle 38, 67, 105, 115 Orifice plate 38b, 67a, 71a, 81a, 91a, 101a,
115a One main surface 39c, 64a Side wall part 40 First pressure chamber 41 Second pressure chamber 42 Vibration plate 53, 70, 78, 79, 86, 96, 106, 118
Convex part 61,71,81,91,111 Base member 62,63,92,112 Penetrating part 73,75,83 Recessed part 76,84,93,103,113 Adhesive layer 77,85,94 Lid member 82,95 , 102, 114 nozzle 101 print head 104 ejection port 116 pressure chamber

Claims (8)

[Claims] 1. A base member in which at least one concave portion is formed facing a main surface, the concave portion forming a pressure chamber into which a recording liquid is introduced and a nozzle communicating with the pressure chamber. In a printer device having a print head in which a lid member is arranged via an adhesive layer, and a space surrounded by the recess and the lid member serves as a pressure chamber and a nozzle, at least one of a base member and a lid member faces each other. At least a part of the position corresponding to the peripheral portion of the concave portion on the surface side,
A printer device, wherein a convex portion having a height lower than the thickness of the adhesive layer is formed. 2. A first pressure chamber into which a discharge medium is introduced, a first nozzle communicating with the first pressure chamber, a second pressure chamber into which a metering medium is introduced, and the second pressure chamber. 2. The printer device according to claim 1, wherein at least one set of nozzles including a second nozzle communicating with the second nozzle is provided, and convex portions are formed at positions corresponding to adjacent concave portions. 3. An adhesive layer having at least one penetrating portion forming a set of a pressure chamber into which a recording liquid is introduced and a nozzle communicating with the pressure chamber is arranged on a base member,
Further, a lid member is arranged on the lid member, and a space formed by closing the upper and lower sides of the penetrating portion with the base member and the lid member is a printer having a print head having a pressure chamber and a nozzle. A printer device in which a convex portion having a height lower than the thickness of the adhesive layer is formed at least at a part of a position corresponding to the peripheral portion of the penetrating portion on at least one opposing surface side of the member. .. 4. A first pressure chamber into which a discharge medium is introduced, a first nozzle communicating with the first pressure chamber, a second pressure chamber into which a metering medium is introduced, and the second pressure chamber. 4. The printer device according to claim 3, wherein at least one nozzle set including a second nozzle communicating with the second nozzle is provided, and a convex portion is formed at a position corresponding to a space between adjacent penetrating portions. 5. A nozzle opening surface side of a print head having at least one set of a pressure chamber into which a recording liquid is introduced and a nozzle communicating with the pressure chamber, and communicated with the nozzle at a position corresponding to each nozzle. In a printer device in which an orifice plate having a discharge port is disposed via an adhesive layer, at a position corresponding to the periphery of the discharge port on the facing surface side of at least one of the print head or the orifice plate,
A printer device, wherein a convex portion having a height lower than the thickness of the adhesive layer is formed. 6. A first pressure chamber into which a discharge medium is introduced, a first nozzle communicating with the first pressure chamber, a second pressure chamber into which a metering medium is introduced, and the second pressure chamber. At least one nozzle set with a second nozzle communicating with the first nozzle,
6. The printer device according to claim 5, wherein a convex portion is formed at a position corresponding to the periphery of at least one of the ejection ports corresponding to each of the nozzle and the second nozzle. 7. An orifice having an adhesive layer having at least one penetrating portion forming a pressure chamber into which a recording liquid is introduced, disposed on a base member, and further having an nozzle having a nozzle at a position corresponding to the penetrating portion. In a printer device having a print head in which plates are arranged, and a space formed by closing the upper and lower sides of a penetrating portion with a base member and an orifice plate serves as a pressure chamber, at least one opposing surface of the base member and the orifice plate A printer device, wherein a convex portion having a height lower than a thickness of the adhesive layer is formed at least at a part of a position corresponding to a peripheral portion of the penetrating portion on the side. 8. At least one pair of penetrating portions that respectively form a first pressure chamber into which a discharge medium is introduced and a second pressure chamber into which a metering medium is introduced are provided, and between the adjacent penetrating portions. The printer device according to claim 7, wherein a convex portion is formed at a corresponding position.