JPH0615811A - Ink jet recording head and recording apparatus loaded therewith - Google Patents

Abstract

PURPOSE:To perform highly reliable and stable recording by a small-sized recording apparatus by arranging a contact pad part performing the electrical connection with the recording apparatus and a heater board mounting part on the different surfaces of a support plate by using a metal wiring board and reducing the area of the support plate. CONSTITUTION:A heater board 2 using a base material such as an Si substrate having an energy generating element for emitting ink formed on the surface thereof is arranged to a part of one surface of a support plate 1 composed of a metal such as an aluminum plate and the electric signal sent from a recording apparatus main body is transmitted to the heater board. A wiring board using Al as a base material is arranged on the same surface as the surface on which the heater board 2 is arranged of the surface on which the connection terminal connected to the heater board 2 is arranged comes to the surface on which the contact pad 4 being the connection part with a recording apparatus is arranged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small ink jet recording head which can be detached from a recording apparatus, an ink jet recording head cartridge, and a recording apparatus equipped with the same.

(Description of Related Art) Various recording systems have been developed today. Among them, the inkjet recording system in which ink is ejected from an ejection port in accordance with a recording signal to perform recording has a smaller size and lower noise. It has been widely used in recent years because it is easy to achieve.

Generally, the recording head section used in this ink jet recording apparatus is constructed so that it can be detached from the recording apparatus as a recording head cartridge in view of easiness of maintenance, service life and the like. Further, this recording head cartridge also has a structure in which the ink tank and the recording head can be separated in consideration of the service life of ink. The supply of ink and the supply of electric signals to the recording head are performed via tube joints, connector contact terminals, etc., respectively.

FIG. 8 and FIG. 9 show an example of a related art ink jet recording head. Among the ink jet recording heads, an electrothermal converter is used as an energy generating means, and the heat energy is generated according to the generated heat energy. 1 shows a recording head in which ink droplets are ejected by causing a bubbling phenomenon in ink.

On the upper surface of the support plate 1, a heater board 2 having an electrothermal converter formed on the surface as a base material such as Si, and a glass epoxy for transmitting an electric signal from the main body of the recording apparatus to the heater board 2. A wiring board 9 on which electrical wiring is provided using the above as a base material is adhered, and the heater board 2 and the wiring board 9 are connected by wire bonding 7.

Contact pads 4 are provided on the upper surface of the wiring board 9 so as to be electrically connected by contact with the flexible wiring board of the recording apparatus main body.

The ink is supplied from the ink tank or the recording device side to the common liquid chamber and the nozzle formed by joining the heater board 2 and the top plate 5 through the ink supply member 6, and is ejected from the ejection port 8. It

However, in the construction of the recording head described above, the ink joint portion between the ink supply portion on the ink tank or the apparatus side and the ink supply member 6 and the connector pad 4 on the wiring board are provided on the same surface side of the support plate 1. The part where is arranged is arranged. Therefore, when the recording head is disconnected and connected, a slight amount of ink leaks from the ink joint portion, the connector pad portion is contaminated with the ink, and a contact failure may occur.

On the other hand, in recent years, further miniaturization of the device has been demanded.
It is difficult to reduce the area occupied by the contact pad section because there are restrictions on the pad area, etc.The area of the print head support plate is determined by the total of the heater board section, wire bonding section, and contact pad section. Therefore, miniaturization was not easy.

As a method for solving such a problem to be solved, the inventor 3 has previously formed an element substrate and a wiring substrate provided with energy generating means for generating energy used for ejecting ink. We have proposed a recording head with improved contact on the support and contact pads formed on the side opposite to the surface on which the element substrate is placed.

As a result of further researches conducted by the present inventors after that, by bending the wiring board and further improving the wiring, the element substrate and the device side are electrically connected in a more reliable and reliable manner. It was found that it is possible to make a physical connection.

The present invention is based on the above-disclosed requirements, and is an ink jet recording head which is smaller in size and capable of reliable and stable recording, an ink jet recording head cartridge, and a recording apparatus using the same. The purpose is to provide.

[0013]

In order to achieve such an object, an ink jet recording head of the present invention is an ink jet recording head for recording by ejecting ink from an ejection port, and recording on one surface of a support. A connection terminal for connecting an element substrate having an energy generation unit that applies energy for ejecting ink according to a signal to the ink, and a wiring substrate of a wiring substrate that transmits the recording signal to the element substrate. And a portion provided with a connection terminal for electrically connecting the wiring board to the other side of the support by bending the wiring board. And a part of the supporting plate corresponding to a bent portion of the wiring board has a bending supporting surface, or ejects ink from an ejection port. In an ink jet recording head for performing recording by means of an element substrate having on one surface of a support an energy generating means for causing energy for ejecting ink in accordance with a recording signal to act on the ink, and the recording signal on the element substrate. And a portion provided with a connection terminal for connecting with the wiring board of the wiring board for transmitting, and the other side of the support by bending the wiring board, the device side of the wiring board and And a wiring pattern in a region of the wiring board where the bending is performed is parallel to the bending direction. The head.

Further, in the ink jet recording apparatus of the present invention, the ejected ink is adhered to a non-recording medium to perform recording, and energy for ejecting ink according to a recording signal is applied to one surface of a support. An element substrate having energy generating means for acting on the ink, and a portion provided with a connection terminal for connecting the wiring substrate for transmitting the recording signal to the element substrate,
And a portion provided with a connection terminal for electrically connecting the wiring board to the device side of the wiring board by bending the wiring board and bending the wiring board. An inkjet recording head in which a part of the support plate corresponding to a location has a bending support surface, and a connection terminal arranged on a surface side of the support of the inkjet recording head different from the surface side on which the element substrate is arranged. A recording device having a connection terminal portion for connection, or an ink jet recording device for recording by ejecting the ejected ink on a non-recording medium, and ejecting the ink on one surface of the support according to a recording signal. An element substrate having an energy generating unit that applies energy to generate ink to the ink and a wiring substrate that transmits the recording signal to the element substrate are connected to the wiring substrate. And a portion provided with a connection terminal for electrically connecting to the device side of the wiring board on the other surface of the support by bending the wiring board. An inkjet recording head that is arranged, and a wiring pattern in a region where the bending of the wiring substrate is formed is parallel to the bending direction; and a support of the inkjet recording head,
A recording device having a connection terminal portion for connecting with a connection terminal arranged on a surface side different from a surface side on which the element substrate is arranged.

[0015]

In the present invention described above, a metal wiring board is used as wiring means for transmitting a signal from the recording device side to the heater board, and a contact pad portion and a heater board mounting portion for electrically connecting to the recording device are provided. By arranging them on different surfaces of the support plate, the area of the support plate can be reduced. Further, since the ink joint portion and the contact pad portion are separated into different regions, it is possible to prevent the contact pad portion from being contaminated with ink.

Further, according to the present invention, the wiring board may have a structure in which a bending support surface such as an R shape is formed at an end portion of a support body corresponding to a bending portion of the wiring board, or the wiring board pattern may be parallel to the bending direction. With this arrangement, the contact pads can be arranged on the surface of the support plate opposite to the surface on which the heater board is arranged, without breaking.

Further, the action of the above means is that the bending support surface of the support body is bent so that the wiring board is bent so that the R shape can be maintained and the wiring pattern can be prevented from being damaged. The positioning of the contact pad portion to be arranged can be stabilized.

[0018]

【Example】

(First Embodiment) Next, an embodiment of an ink jet recording head to which the above means is applied will be described with reference to FIGS. 1 is a schematic cross-sectional view of the inkjet recording head according to the embodiment, and FIG. 2 is a schematic top view and bottom perspective view of the inkjet recording head according to the present invention, and the same reference numerals are used for the same members. .

First, the overall construction of the ink jet recording head of this embodiment will be described with reference to FIG.

A Si substrate having a surface on which an electrothermal converter (energy generating element) for generating energy used for ejecting ink is formed on a part of one surface of the support plate 1 made of a metal such as an aluminum plate. A heater board (element substrate) 2 whose base material is, for example, is arranged. The wiring board 3 made of Al as a base material for transmitting an electric signal sent from the recording apparatus main body to the heater board 2 is provided with the heater board 2 on the same surface as the surface of the support 1 on which the heater board 2 is arranged. A contact pad (connecting terminal) 4 which is a connecting portion to the recording apparatus side is arranged on the surface on which the connecting terminals to be connected are arranged and on the surface opposite to the surface on which the heater board 2 of the support 1 is arranged. It is arranged so that the surface will come. The heater board 2 and the wiring board 3 are connected by wire bonding.

Ink is supplied from an ink supply section arranged in the main body of the recording apparatus or an ink tank via an ink supply member 6 to a common liquid chamber and a nozzle formed by joining a heater board and a top plate. .

A signal from the recording signal supply means on the recording device side is supplied to the contact pad (connection terminal portion) of the flexible wiring board on the recording device main body side and the contact pad 4 on the recording head side which comes into contact with the recording head when mounting the recording head. Is supplied from the device side. Along with this, the electrothermal converter is driven, the ink is heated and ejected from the ejection port 8.

Next, the principal part of the manufacturing process of the recording head in this embodiment will be described.

First, an epoxy adhesive or a silicone adhesive such as SE9145 or SE4410 (made by Toray Dow Corning Silicone Co., Ltd.) is adhered to a necessary portion on one surface of the cleaned support by screen printing or the like. Apply the agent. Although ceramics, glass, or the like can be used as the support, it is preferable to use metal such as Al.

Next, at one end of the surface coated with the adhesive,
One of the wiring boards 3 made of a metal base material is arranged such that the heater board 2 is positioned and adhered and the other end of the same surface where the contact pad, which is a connection terminal for the device, is arranged is projected. The parts are positioned and bonded by a positioning part (not shown).

After that, the connection terminals of the heater board 2 and the wiring board 3 are connected by wire bonding 7 or the like.

Then, an ink path and a common liquid chamber are formed by adhering the top plate on the heater board, and the ink supply member 6 is connected to this top plate and sealed with a liquid silicone rubber sealant. To do.

Next, the portion of the wiring board that protrudes from the support (the portion on which the contact pad is provided) is bent by 180 degrees and positioned, and is brought into close contact with the back surface of the support plate 1.

At this time, the end portion of the support plate corresponding to the bending area of the wiring board has a bending support portion 1a having a curved shape (R shape) as shown in FIG. 1, and the wiring can be made to follow this shape. Bend the board.

The base material of the wiring board 3 may be a material that can withstand a large bending of 90 degrees or more, but a metal (including an alloy) is more preferable because of problems such as thermal conductivity. In this case, a metal made of aluminum, copper, or the like is desirable. In addition, when the metal wiring board is bent to have a radius equal to or less than about 2.5 times the thickness of the wiring board, the wiring may be cracked and broken. Therefore, it is desirable that this thickness be as thin as possible from the viewpoint of bending, but a certain thickness is required from the viewpoints of shape retention and contact surface flatness. The preferable thickness range in this example is 0.5 mm or less and 0.1 mm or more.

As described above, in this embodiment, by bending the metal wiring board to arrange the contact pads on the surface different from the heater board 2, both sides of the support plate 1 can be effectively used, and the support plate 1 can be effectively used. Since the area of 1 can be reduced, the recording head can be downsized.

Since the contact pad portion is arranged on the side opposite to the ink joint portion, the contact pad portion can be prevented from being contaminated by ink.

When a metal is used as the base material of the wiring board, static electricity discharged from the human body when the ink jet recording head is attached or replaced is discharged to the ground through the metal part of the wiring board. Is not discharged, and destruction of the inkjet recording head due to static electricity can be prevented.

Further, in this case, since the wiring board is made of metal, heat can be transmitted to the apparatus side through the contact portion, and when the recording head and the ink tank are joined, heat is also applied to the cartridge. As a result, a uniform temperature can be achieved even in the vicinity of the recording head.

Furthermore, since the wiring pattern is not sharply bent by bending the wiring board by following the bending support portion 1a of the support body, there is no fear of damaging the wiring pattern.

Further, since the bending is smoothly performed by the bending support portion, the positioning of the contact pad portion with respect to the support 1 can be stably performed.

Further, in the present embodiment, since the wiring in the area where the wiring board is bent is arranged so as to be parallel to the bending direction as shown in FIG. I don't have to worry about it happening.

(Second Embodiment) In the first embodiment described above,
Although an R-shaped support surface was formed as a bending support region at the end of the support body 1, as another embodiment, the support body 1 is formed.
The chamfered shape 1b is formed so that the bent R shape of the wiring board 3 can be held by the edge supporting region shape of 2 by two ridge lines or a large number of ridge lines.

The effect on the wiring board is almost the same as that of the first embodiment described above, but when forming the above-mentioned bent support region of the support, chamfering of the corner of the support is increased. It can be formed more easily because it only has to be performed.

In the above-mentioned embodiment, among the ink jet recording heads, the recording head of the form in which the ink is foamed and the ink droplets are ejected by utilizing the thermal energy is shown. However, other methods such as an electrostrictive element are used. The present invention can be suitably applied to a recording head in which ink droplets are ejected by using the recording head.

(Other Embodiments) FIG. 4 shows a schematic sectional view in which the ink jet recording head described in the previous embodiment and the detachable ink tank 10 are connected, and is shown in the previous embodiment. As described above, since the recording head can be downsized, the ink tank can be downsized accordingly, and in the ink tank configured such that the ink can be placed directly on the metal wiring board, It is also possible to transfer the heat of the recording head side to the ink tank through.

An example of an ink jet recording apparatus equipped with the ink jet recording head and the ink jet recording head cartridge manufactured by using the above-described embodiments and examples will be described with reference to FIG. Figure 5
FIG. 3 is a schematic perspective view showing a main part of an example of an inkjet recording device.

In FIG. 5, 320 is a platen 324.
An inkjet recording head cartridge of a removable cartridge type having an integral structure of a recording liquid storage part, which has a plurality of ink ejection ports facing a recording surface of a recording paper (not shown) which is a recording medium conveyed above. . Reference numeral 316 denotes a carriage on which the inkjet recording head cartridge 320 is placed, which is connected to a part of a drive belt 318 that transmits the driving force of a drive motor 317, and two guide shafts 329A and 329A arranged in parallel with each other. 329
It is slidable with B. This allows the inkjet recording head cartridge 320 to reciprocate over the entire width of the recording paper.

Reference numeral 326 is a recovery device for recovering and preventing defective ink ejection from the recording head, which is a predetermined position in the moving range of the inkjet recording head cartridge 320.
For example, it is arranged at a position facing the home position.
The recovery device 326 includes a motor 32 via a transmission mechanism 323.
The ejection port of the ink jet recording head is capped by the driving force of 2. In connection with the capping operation of the ejection port of the inkjet recording head by the cap 326A of the recovery device 326, ink is sucked from the ejection port by an appropriate suction means (not shown) provided in the recovery device 326, or ink is ejected from the device side. In an apparatus (not shown) in which the ink is supplied to the recording head, the ink is pressure-fed by an appropriate pressurizing means (not shown) provided in the ink supply path to the inkjet recording head. As a result, a recovery process is performed in which ink is forcibly discharged from the ejection port and foreign matter such as thickened ink inside the ejection port is removed.

A blade 330 is provided on the side surface of the recovery device 326 and is made of silicone rubber and serves as a wiping member. The blade 330 is held by the blade holding member 330A in a cantilever shape, and the recovery device 3
Similar to 26, the motor 322 and the transmission mechanism 323 operate to enable engagement with the ejection opening surface of the inkjet recording head. This allows the blade 330 to protrude into the moving range of the inkjet recording head at an appropriate timing during the recording operation of the inkjet recording head, or after the recovery process using the recovery device 326, and the inkjet recording head moves. With the movement,
It is possible to wipe off foreign matter such as dew condensation, wetness or dust adhering to the ejection port surface.

The driving of the recording paper conveying means, the carriage and the recovery device of the ink jet recording apparatus, the driving of the recording head, etc. are controlled based on commands and signals output from the control means including the CPU of the apparatus main body side. It

Next, the configuration and electric circuit of the information processing apparatus incorporating the recording apparatus according to this embodiment will be described.

FIG. 6 is a schematic perspective view showing the outer appearance of an information processing apparatus 604 incorporating the recording apparatus according to this embodiment. In the figure, 601 is the above-mentioned printer unit, and 60
Reference numeral 2 is a keyboard unit having keys for inputting characters, numbers and other characters, keys for giving various commands, and 603 is a display unit having a display.

FIG. 7 is a block diagram showing the electric circuit configuration of the information processing apparatus according to this embodiment.

In the figure, 501 is a controller for main control, 502 is a CPU in the form of a microcomputer for executing a certain procedure, 503 is an area for expanding text data and image data, an area for work, etc. Is provided in the RAM, 504 is a ROM storing fixed data such as a program corresponding to the above procedure and other font data, and 505 is an execution cycle of the CPU 502 and a timing required for a printing operation by the printer unit 601. Timer, 506 is CPU
An interface unit that connects a signal from 502 and a peripheral device.

Reference numeral 507 is a controller of the printer unit 601, reference numeral 508 is a head driver for sending recording signals and electric power to the head cartridge 101, and 509.
Reference numerals a and b denote motor drivers that send out signals and electric power necessary to drive the carrier motor 402a and the conveyance motor 402b, respectively. A 510 detects the position of the carrier 102 and determines whether the carrier 102 is at the home position, for example. A carrier sensor 511 for detecting the presence / absence of the recording medium 6 in order to prevent recording to a place other than the recording medium 6 when the recording medium 6 is not inserted or the recording is completed up to the end of the page. It is a paper sensor.

Further, 605 is, for example, FDD, HDD,
An external storage device 512 such as a RAM card is an external interface for communicating with another information processing device or for directly connecting to an internal bus to control peripheral devices.

Although not included in the block diagram of FIG. 7, there is another power supply unit for supplying electric power to the above electric circuit, which includes, for example, a rechargeable battery or a disposable dry battery, Alternatively, there is a converter for AC power supply when the information processing apparatus main body is fixed and used.

The present invention brings excellent effects particularly in a recording head and a recording apparatus of the type which ejects ink by utilizing thermal energy among the ink jet recording systems.

With regard to its typical structure and principle, for example, US Pat. Nos. 4,723,129 and 4740 are applicable.
What is done using the basic principles disclosed in 796 is preferred. This method can be applied to both the so-called on-demand type and continuous type, but especially in the case of the on-demand type, liquid (ink)
By applying at least one drive signal to the electrothermal converter arranged corresponding to the sheet or liquid path in which the is held, which corresponds to the recorded information and gives a rapid temperature rise exceeding nucleate boiling, This is effective because heat energy is generated in the electrothermal converter to cause film boiling on the heat acting surface of the recording head, and as a result, bubbles can be formed in the liquid (ink) in one-to-one correspondence with this drive signal. The liquid (ink) is ejected through the ejection openings by the growth and contraction of the bubbles to form at least one droplet. It is more preferable to make the driving signal into a pulse shape because bubbles can be grown and contracted immediately and appropriately, and thus a liquid (ink) with excellent responsiveness can be ejected. This pulse-shaped drive signal is disclosed in U.S. Pat. No. 4,463,359 and No. 43.
Those as described in 45262 are suitable. If the conditions described in US Pat. No. 4,313,124, which is an invention relating to the rate of temperature rise on the heat acting surface, are adopted, more excellent recording can be performed.

As the constitution of the recording head, in addition to the combination constitution of the ejection port, the liquid passage, and the electrothermal converter (the linear liquid passage or the right-angled liquid passage) as disclosed in the above-mentioned respective specifications. US Pat. No. 4,558,333, US Pat. No. 4,558,333, which discloses a configuration in which a heat acting portion is arranged in a bending region.
A configuration using the specification of No. 459600 is also included in the present invention.

Further, as a full line type recording head having a length corresponding to the width of the maximum recording medium which can be recorded by the recording device, a combination of a plurality of recording heads as disclosed in the above-mentioned specification is used. Although the structure may be one that satisfies the length or one recording head integrally formed, the present invention can more effectively exhibit the above-described effects.

In addition, by being attached to the apparatus main body, it can be electrically connected to the apparatus main body and can be supplied with ink from the apparatus main body by a replaceable chip type recording head or the recording head itself. The present invention is also effective when a cartridge-type recording head that is specially provided is used.

Further, it is preferable to add recovery means for the recording head, preliminary auxiliary means, etc., which are provided as a configuration of the recording apparatus of the present invention, because the effects of the present invention can be further stabilized. Specific examples thereof include capping means, cleaning means, pressurizing or suctioning means, electrothermal converters or heating elements other than these, or preheating means for the recording head. ,
It is also effective to perform stable recording by performing a preliminary discharge mode in which discharge is performed separately from recording.

Further, the recording mode of the recording apparatus is not limited to the recording mode of only the mainstream color such as black, but the recording head may be integrally formed or a plurality of combinations may be used. The present invention is also extremely effective for an apparatus provided with at least one of full color by color mixing.

In the embodiments of the present invention described above, the liquid ink is used for explanation. However, in the present invention, even an ink which is solid at room temperature is an ink which is in a softened state at room temperature. Can also be used. In the above-mentioned inkjet device, the temperature of the ink itself is 30 ° C. or higher and 70
The viscosity of the ink is generally controlled to be in a stable ejection range by adjusting the temperature within the range of ℃ or less.
Therefore, in such an ink jet device, a liquid ink may be used when the device to which the recording signal is applied is used. In addition, in order to prevent the head temperature from rising due to thermal energy by positively using thermal energy as energy for changing the state of the ink from the solid state to the liquid state, or by solidifying the ink while it is left standing In order to prevent the evaporation of the ink, heat energy such as that in which the ink is liquefied and ejected in a liquid state by applying heat energy in response to the recording signal, or the one which has already started to solidify when it reaches the recording medium is used. Inks that have the property of liquefying only by energy can also be used in the present invention.

In the above embodiments, among the ink jet recording heads, the recording head of the form in which the ink is foamed by utilizing the thermal energy to eject the ink droplets has been described, but other methods such as an electrostrictive element may be used. The present invention can be suitably applied to a recording head in which ink droplets are ejected by using the recording head.

[0063]

[Effect of the Invention] The aluminum wiring board 3 can be held by the R-shaped portion 1a of the support 1 so as to be bent, so that the R-shaped can be maintained and the wiring pattern is not damaged. Also support 1
The contact pad portion can be positioned stably with respect to the support 1 by closely contacting the back surface of the contact pad portion.

By disposing the contact pad portion on the surface different from that of the heater board 2 as described above, both sides of the support plate 1 can be effectively utilized and the area of the support plate 1 can be reduced, so that the recording head can be made compact. Can be converted.

Since the contact pad portion is arranged on the side opposite to the ink joint portion, the contact pad portion can be prevented from being contaminated by ink.

Furthermore, since the base material of the wiring board is made of metal, static electricity discharged from the human body when the ink jet recording head is attached or replaced is discharged to the ground through the metal part of the wiring board. Is not discharged, and destruction of the inkjet recording head due to static electricity can be prevented.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing a first embodiment of an inkjet recording head according to the present invention.

FIG. 2 is a schematic perspective view showing a first embodiment of an inkjet recording head according to the present invention.

FIG. 3 is a schematic sectional view showing a second embodiment of the ink jet recording head according to the present invention.

FIG. 4 is a schematic cross-sectional view showing an embodiment of an ink jet recording head cartridge according to the present invention.

FIG. 5 is a schematic perspective view showing a main part of an example of an inkjet recording apparatus of the present invention.

FIG. 6 is a perspective view showing a schematic external appearance of an information processing apparatus equipped with the recording apparatus of the present invention.

FIG. 7 is a block diagram showing the main electric circuit configuration of an information processing apparatus equipped with the recording apparatus of the present invention.

FIG. 8 is a cross-sectional view showing an inkjet recording head as a related technique.

FIG. 9 is a perspective view showing an inkjet recording head as a related technique.

[Explanation of symbols]

 1 Support Plate 2 Heater Board 3 Al Wiring Board 4 Contact Pad 5 Top Plate 6 Ink Supply Member 7 Wire Bonding 8 Ejection Port 9 Glass Epoxy Base Wiring Board

Claims (4)

[Claims] 1. An ink jet recording head for recording by ejecting ink from an ejection port, wherein an element having an energy generating means for applying energy for ejecting the ink to the ink according to a recording signal is provided on one surface of a support. A substrate and a portion of the wiring substrate that transmits the recording signal to the element substrate and provided with a connection terminal for connecting the wiring substrate to the wiring substrate are arranged. On one surface, a portion provided with a connection terminal for electrically connecting to the device side of the wiring board is arranged, and a part of the support plate corresponding to the bending portion of the wiring board is a bending support surface. An inkjet recording head characterized by having. 2. An ink jet recording apparatus for recording by ejecting ejected ink onto a non-recording medium, and an energy generating means for applying energy for ejecting ink to the ink on one surface of a support according to a recording signal. And a portion of the wiring substrate that transmits the recording signal to the element substrate and provided with a connection terminal for connecting the wiring substrate to the wiring substrate, and the wiring substrate is bent to support the wiring substrate. On the other surface of the body, a portion provided with a connection terminal for electrically connecting to the device side of the wiring board is arranged, and a part of the support plate corresponding to the bent portion of the wiring board is bent. Connection between an inkjet recording head having a supporting surface and a connection terminal arranged on a surface side of the support of the inkjet recording head different from the surface side on which the element substrate is arranged. A connection terminal portion, an ink jet recording apparatus having a. 3. An ink jet recording head for recording by ejecting ink from an ejection port, wherein an element having energy generating means for applying energy for ejecting ink according to a recording signal to one surface of a support. A substrate and a portion of the wiring substrate that transmits the recording signal to the element substrate and provided with a connection terminal for connecting the wiring substrate to the wiring substrate are arranged. On one surface, a portion provided with connection terminals for electrically connecting to the device side of the wiring board is arranged, and a wiring pattern in a region of the wiring board where the bending is performed is parallel to the bending direction. An ink jet recording head characterized by being formed in. 4. An ink jet recording apparatus for recording by ejecting ejected ink on a non-recording medium, and an energy generating means for applying energy for ejecting ink to one surface of a support according to a recording signal. And a portion of the wiring substrate that transmits the recording signal to the element substrate and provided with a connection terminal for connecting the wiring substrate to the wiring substrate, and the wiring substrate is bent to support the wiring substrate. On the other surface of the body, a portion provided with connection terminals for electrically connecting to the device side of the wiring board is arranged, and the wiring pattern in the region of the wiring board where the bending is performed is the bending. An ink jet recording head formed parallel to the direction, and a contact arranged on a surface side of the support of the ink jet recording head different from the surface side on which the element substrate is arranged. An ink jet recording apparatus having a connection terminal portion for connecting with the terminal.