JPH05212876A - Substrate for recording head, recording head, and recorder - Google Patents

Abstract

PURPOSE:To enable a recorder of a plurality of colors to color print without arranging a printer on a carriage by a method wherein same signals of a plurality of colors are serially inputted to an image data signal terminal of a driving integrated circuit mounted on a recorder to arrange each color so as to correspond to each color recording element. CONSTITUTION:For a semiconductor chip 1003, a plurality recording elements and function elements, and a driving integrated circuit are structurally provided inside a surface of a same substrate. Recording elements 1005M, 1005Y, 1005C corresponding to each color, signal terminals of the driving integrated circuit, and power source terminal pads 1004 are arranged on the surface. An ink supply part 1006 which supplies ink to a heat operating chamber part interconnected to an orifice, since it is required to supply the ink by separating each color content, is constructed by being divided into 1006M, 1006Y, 1006C. The each color ink supply part 6, since it is respectively interconnected to 1007M, 1007Y, 1007C provided for each color, can form a small sized low price color liquid jet recorder, and can easily cope with coloring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording head plate, a recording head, and a recording device which are provided with a driving integrated circuit for arranging a plurality of recording elements and selectively supplying a recording current.

[0002]

2. Description of the Related Art Heretofore, various recording apparatuses are known in which a plurality of recording elements are arranged in a line. In this type of recording apparatus, several or several tens of driving integrated circuits capable of driving several tens of recording elements as one block are mounted on the same substrate, and image data is aligned corresponding to each recording element. Thus, it is possible to perform arbitrary recording on a recording material such as paper. While these recording devices are highly desired as printers for modern business offices and other office processing departments, as well as personal use in that they are capable of high-density recording at high density, further cost reduction, or Development and improvements such as colorization are being made.

In such a recording apparatus, a liquid jet recording apparatus for recording by ejecting ink from a discharge port arranged on a recording element as low noise non-impact recording, is high density because of its structural characteristics. Therefore, it is eagerly desired to realize a low cost color printer or the like, which is capable of sufficiently high-speed recording.

[0004]

However, in order to realize the colorization of the liquid jet recording apparatus, since ink is used as the recording material, the recording apparatus is divided into cartridges of a plurality of colors because of the necessity of separating the ink tanks. Under the present circumstances, the recording apparatus becomes large in size and the driving circuit and the like become complicated. FIG. 14 is a lock diagram showing a circuit configuration of a conventional liquid jet recording apparatus which is color compatible. Reference numerals 1005C, 1005Y, and 1005M are recording elements for recording cyan, yellow, and magenta, respectively, and are arranged in the order of several tens. 101
Reference numerals 5 and 1016 are functional elements that control the energization of the recording elements and correspond to the number of recording elements. Then, the area shown by the dotted line is formed in the recording head substrate. 10
Reference numeral 25 denotes a shift register circuit that aligns image data corresponding to printing elements, and holds data for printing elements 102.
It is directly connected to the 4th latch circuit. The output of this latch circuit and the signal lines 1033, 1 for controlling the energization time of the recording element
By further ANDing the AND output of 034, the recording element can be energized for the output time.

However, with this configuration, when a cartridge of a plurality of colors is mounted on a carriage of a printer or the like, the connection between the substrate side and the head or the apparatus becomes complicated, so that the printer becomes large in size and the number of contacts of the carriage increases. There are many factors that increase costs, such as the complexity of the drive circuit, and there are many points that can be solved in the design and production of the recording device, which is directly related to the recording accuracy and the reliability and durability of the recording.

Further, a large number of recording elements as means for generating heat acting on ink to form flying droplets are arranged according to the pixel density, and a functional element array for selectively driving these, for example, , Transistor array,
Alternatively, the characteristics of the recording apparatus described above can be maximized by integrating a diode array to which signal amplification means is added, and by reliably mounting an integrated circuit for driving, etc., and efficiently producing it. In the above, the functional element array is individually made into a chip for the sake of yield and ease of manufacturing, or a driving IC including the functional element is mounted on a substrate on which a recording element is arranged, and then,
A recording apparatus is manufactured by adhesively bonding a constituent member for forming a space filled with ink, such as a discharge orifice that discharges ink for forming flying droplets and a thermal action chamber communicating with the orifice. Therefore, it is inevitable that the complexity and the mass production efficiency are low. Further, with the increase in the density, integration and length of the recording apparatus, the above points need to be solved further, and the certainty and reproducibility in manufacturing for obtaining the desired characteristics as designed. It is necessary to consider it and improve it.

[0007]

In view of the above points, the present invention can provide a color printer without arranging a plurality of color recording devices on a carriage such as a printer. The recording apparatus having the constitution of the present invention has a remarkable advantage in reliability in production, stable productivity and reproducibility in characteristics.

In the recording apparatus of the present invention, image data signals of a plurality of colors are serially input to an image data signal terminal which is one terminal of a driving integrated circuit mounted in the recording apparatus, and each color data is recorded in a recording element of each color. Arrange to correspond. Also,
It is also possible to sequentially drive the recording elements for each color by dividing and arranging each color as one block for a plurality of colors. In order to provide a highly reliable recording device, a plurality of recording elements, functional elements, and driving integrated circuits are structurally provided inside the surface of the same substrate, so that the heat dissipation effect of the recording elements is significantly improved, and the yield is improved. Will be high. It is also possible to provide a recording device capable of high-density and high-speed printing by cascade-connecting such recording devices.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an example in which the present invention is applied to a liquid jet recording apparatus, which is the most effective configuration. 1001
Is an ejection orifice for ejecting ink to form flying droplets, and 1002M, 1002Y, 1002C
Are ink ejection ports for magenta, yellow, and cyan provided on the orifices, respectively. Reference numeral 1003 denotes a semiconductor chip in which a plurality of recording elements, functional elements, and driving integrated circuits are structurally provided inside the same substrate surface,
On the surface, recording elements 1005M, 100
5Y and 1005C and the signal terminal of the driving integrated circuit and the power supply terminal pad 1004 are arranged. In order to supply ink to the thermal action chamber communicating with the orifice 1006, it is necessary to separate and supply each color component.
It is configured separately as 006Y and 1006C. Each color ink supply unit 1006 includes an ink tank 10
07, 1007M, 1007Y, 10 provided for each color
It is possible to provide a small-sized and low-priced color liquid jet recording apparatus by respectively communicating with 07C.

FIG. 3 is a block diagram of a semiconductor chip 1003 which can be realized by the present invention. 1 recording element 1005
They are arranged in the longitudinal direction of 003 and are connected to the common electrode 1014 on the power supply side of the recording element through a through hole. 10
Reference numeral 39 is a power supply (hereinafter referred to as VH) supply pad of the recording element. Reference numerals 1015 and 1016 denote functional element arrays that control the energization of the recording elements, and their arrangement is devised to enable high-density printing. Reference numeral 1017 denotes a recording current common ground (hereinafter referred to as GND) electrode of the recording element, the area of which is determined depending on the value of the current supplied to the recording element. 1038 is the ground pad. The most characteristic configuration of the present invention is that a driving integrated circuit such as a logic gate lodge unit 1023, a latch circuit 1024, shift registers 1025 and 1026 is provided in addition to the functional element array 1003.
Is structurally provided inside the semiconductor chip surface.
A signal series terminal 1004 connected to this driving integrated circuit
Are arranged on both sides of the driving integrated circuit.

FIG. 4 is a structural schematic diagram showing FIG. 3 in more detail. Reference numeral 1005 is a printing element, and 1011 is a second layer wiring from the printing element to VH. Reference numeral 1012 is a second layer wiring from the recording element to the functional element, and 1013 is a second layer wiring connecting the ground terminal of the functional element and GND. The second layer wiring is made of a conductive material such as aluminum. Reference numeral 1014 is a VH wiring, and 1015 and 1016 are functional elements in the first and second columns, respectively. 1012 is
The staggered connections to 1015 and 1016 achieve a high-density array of recording elements. 1017
Is a GND wiring, and 1018 is a base or gate wiring of a functional element, and is made of polysilicon or the like inside the substrate. 1019, 1020, 1021, and 1022 are GN
Similar to the D wiring, the wirings for the enable, latch, serial data, and clock are formed in the first layer, and are made of the same conductive material as the second layer. Reference numeral 1023 is a logic gate logic, and 1024 and 1025 are latch circuits and shift register circuits, respectively. 1027
Is an interlayer insulating film that electrically separates the first layer and the second layer, 1028 is a heat storage layer, and 1029 is a silicon substrate.

FIGS. 5 and 6 are a perspective view and a cross-sectional view showing a noise structure necessary for ink ejection in order to apply the semiconductor chip described in FIGS. 2 and 3 to a liquid jet recording apparatus. The semiconductor chip 1003 is placed on the upper surface of the ink supply unit 1006, and the ejection orifice 1001 constitutes a thermal action chamber of ink, and electrothermal conversion is performed by energization of a recording current.
To occur. Since the liquid chamber 1010 is filled with ink, flying droplets 1008 are ejected from the nozzle 1002 by the pressure of 1009.

In this way, the ink is circulated from the back surface of the substrate (on which the recording elements are arranged) and supplied, whereby the uneven distribution of heat on the substrate is alleviated and stable recording is achieved. Can be done.

Further, since the distance between the position where the recording element is arranged and the ink supply chamber 43 can be made very short, the refill speed can be increased and the high speed response of ink ejection can be achieved. be able to. Further, since the distance from the bubbling position (recording element) to the common liquid chamber 43 is short and the spread at the portion connecting the flow path to the common liquid chamber 43 can be increased, the back wave generated during bubbling is dispersed. Therefore, it is possible to mitigate the influence of the crosstalk of the back wave between the nozzles. In order to produce such an effect, the preferable arrangement of the recording elements is within 1000 μm from the edge of the substrate, and more preferably 3 μm.
It is within 00 μm (however, the arrangement position (distance) of the recording element here means the distance from the common liquid chamber side end of the channel to the center of the recording element along the channel).

As an example of the ink jet recording head using the substrate of the present invention, the type in which ink is ejected in the direction perpendicular to the surface on which the recording elements are arranged is shown in FIGS. 5 and 6, but other recording heads are shown. 18 shows an example of a recording head that ejects ink in the direction along the surface on which the recording elements are arranged. FIG. 18 is a partial sectional view thereof.

In the figure, a top plate 4 having a groove for forming a liquid flow path 47 is joined to a substrate 1. Ink is supplied from the common liquid chamber 43 into the liquid flow path 47, and the ink is filled up to the orifice 5 by the capillary force. The ink is heated and foamed 41 by applying an electric signal to the recording element corresponding to the liquid flow path 47 to generate heat, and the energy due to the foaming ejects the ink from the ejection port 5. still,
An electric signal for recording is supplied from the printed board 46 to the element substrate of the present invention in which the shift register is arranged, through the wire bonding 45.

FIG. 12 is a block diagram showing the circuit arrangement of a recording apparatus capable of color recording to which the present invention is applied. 1
005C, 1005Y, and 1005M are cyan,
It is a recording element for recording yellow and magenta, and is arranged with several tens of elements. Reference numerals 1015 and 1016 denote functional elements that control the energization of the recording elements and correspond to the number of recording elements. Reference numeral 1025 denotes a shift register circuit that aligns image data corresponding to printing elements, and is directly connected to a latch circuit 1024 that holds data for printing elements. The output of the latch circuit, the strobe terminal 1033 for controlling the energization time of the recording element, and the functional element block corresponding to each color can be activated independently. 1
By further ANDing the outputs of the ANDs of 034C, 1034Y, and 1034M, the recording element can be energized for the output time. According to the present invention, a compact and inexpensive recording apparatus can be achieved by arranging recording elements of a plurality of colors on one semiconductor chip.

FIG. 15 is a drive timing chart in the circuit of the recording apparatus capable of color recording to which the present invention is applied. What is most characteristic here is that the image data of a plurality of colors are serially arranged when the image data signal (SI) is input. That is, in the present invention,
Rather than inputting image data of a plurality of colors separately, cyan, yellow,
3 colors (or 4) of magenta (black may be added)
Image data corresponding to (color) is serially input in order. The serial image data of a plurality of colors are sequentially transferred in the shift register by the image data transfer clock (SCK), and the image data of each color is aligned corresponding to the recording elements for one line of each color of the recording head.

The shift register section shown in FIG. 15 is connected to the latch circuit section, and it becomes possible to energize the recording element in accordance with the image data corresponding to the cycle time of the latch pulse signal (LAT).

In practice, the recording element is divided by color for the period of time for which the recording element can be driven. The signal for performing the division is the enable signal (1
034C, 1034Y, 1034M), and the strobe signal 14 for setting the optimum drive time (pulse width suited to the characteristics of the recording element) for recording each color. It is possible to selectively drive the recording element blocks divided into a plurality of colors with a constant pulse width during the pulse cycle time.

Even when recording a plurality of colors with the driving timing as described above, it is not necessary to provide a separate signal line for each color, the number of wirings and pads is reduced, and a compact and inexpensive recording head is provided. A substrate for printing and a recording head can be obtained. In the above description, the case of three colors is shown, but it is also possible to drive in the case of supporting more colors or one color. In the case of monochrome recording, by configuring the same as the color recording device,
It is possible to record in color and monochrome simply by replacing the head on one printer. The color and monochrome of the recording device can be discriminated by, for example, inserting an identification code in the serial data and feeding back the data from the recording device to the printer. The recording device may be provided with a slit and the like, and the detection mechanism of the printer may be used for the determination.

(Other Embodiments) The recording apparatus that can be realized by the present invention can flexibly bring out its advantages without being limited to the color configuration.

FIG. 2 shows a second embodiment of a liquid jet recording apparatus which is constructed assuming that a monochrome cartridge is mounted on a carriage of a printer capable of color recording. The constituent parts are the same as in the case of color, except that there is no member relating to ink supply separation for a plurality of colors.

FIG. 16 is a drive timing chart of the recording apparatus configured as shown in FIG. In the case of color, monochrome image data can be input by serially inputting only black data. Regarding division driving, the array of recording elements is divided into a specific number 1034 (1), 1034
(2) Input as 1034 (3).

By configuring the color and monochrome recording devices in the same manner as described above, it is possible to perform color and monochrome recording simply by mounting them on one printer. For distinguishing color and monochrome of the recording device, for example, enter the identification code in the serial data,
This is possible by feeding back the data output from the recording device to the printer. Alternatively, the recording device may be provided with a slit or the like so as to be discriminated by the detection mechanism of the printer.

FIG. 10 is an external view of a liquid jet recording apparatus IJRA to which the present invention can be applied, showing a lead screw 5005 which rotates via driving force transmission gears 5011 and 5009 in association with forward and reverse rotations of a drive motor 5013. Spiral groove 50
The carriage HC, which is opposed to 04, has a pin (not shown), and is reciprocated in the directions of arrows a and b. 500
A paper pressing plate 2 presses the paper against the platen 5000 in the carriage movement direction. 5007, 50
Reference numeral 08 denotes a photo coupler which is a home position detecting means for confirming the existence of the carriage lever 5006 in this area and switching the rotation direction of the motor 5013. Fifty
16 is a cap member 5 for capping the front surface of the recording head.
Numeral 5015 is a member that supports 022, and suction means for sucking the inside of the cap 5022 to perform suction recovery of the recording head through the opening 5023 in the cap. Reference numeral 5017 is a cleaning blade, and 5019 is a member that allows this blade to move in the front-rear direction, and these are supported by a main body support plate 5018. Needless to say, a known cleaning blade can be applied to this embodiment instead of this form. Reference numeral 5012 denotes a lever for starting suction for suction recovery, which moves in accordance with the movement of a cam 5020 which is coordinated with the carriage, and the driving force from the driving motor is movement-controlled by a known transmission means such as clutch switching. It

The capping, cleaning, and suction recovery are performed so that desired processing can be performed at their corresponding positions by the action of the lead screw 5005 when the carriage comes to the home position side area. Any desired operation can be applied to this embodiment as long as the desired operation is performed.

Further, FIG. 7 shows another embodiment that enables high-speed printing by connecting semiconductor chips that can be realized by the present invention in respective colors or in a cascade connection corresponding to the same colors.

A semiconductor chip 1003M corresponding to each color,
The connection terminal pads 1004 of 1003Y and 1003C are connected in cascade by a connection member (also wire bonding or the like) 1030. FIG. 13 shows a circuit block having such a configuration. Basically, the power supply terminals are shared and the signal series wiring terminals are cascade-connected. When connected in a cascade, the image data corresponding to the total number of recording elements may be serially input in the case of color, and the monochrome data for the total number of recording elements may be serially input in the case of monochrome. FIG. 17 shows a drive timing chart for driving the recording apparatus having this configuration.

By arranging the semiconductor chip recording element array of the present invention in a zigzag pattern, a recording device capable of higher speed and high density printing as shown in FIG. 8 can be constructed. 1
A member or substrate that relays the connecting member 030 is arranged on the member or substrate that holds the semiconductor chip. The recording apparatus having such a configuration has an advantage that when the recording element or the semiconductor chip is destroyed for some reason, the corresponding semiconductor chip can be replaced.

Further, from the viewpoint of being maintenance-free, by providing structurally the recording element and the functional element corresponding to the recording width of one line, and the driving integrated circuit on the upper surface of the same substrate, reliability can be improved. It is possible to provide a high-density, high-density full-line recording device capable of high-speed printing.

Although not a full line in FIG. 9, recording elements, functional elements, and driving integrated circuits corresponding to several tens of semiconductor chips are structurally provided on the surface of the same substrate, and the arrangement of the recording elements is arranged. Liquid chambers 1031M, 1 divided into multiple colors
By making 031Y and 1031C, it is possible to provide a highly reliable, high-density, high-speed printable color liquid jet recording apparatus. 1032M, 1032Y, 1
Reference numeral 032C denotes magenta, yellow, and cyan ink supply tubes, respectively. Although not shown, a monochrome full-line liquid jet recording apparatus can also be configured without dividing the liquid chamber based on this configuration.

FIG. 11 is a full-line liquid jet recording apparatus according to the present invention in which a recording element, a functional element, and a driving integrated circuit corresponding to several tens of semiconductor chips are structurally provided on the upper surface of the same substrate. Is a high-quality full-color recording device in which cyan, yellow, magenta, and black are respectively associated with these four line recording devices. 201A and 201B are rollers as conveying means provided for holding and conveying the recording medium R in a sub-scanning direction V _S. 202BK, 202Y,
Reference numerals 202M and 202C are full-line type recording devices for recording black, yellow, magenta, and cyan, respectively, in which nozzles are arranged over the entire width of the recording medium R, in the order of black, yellow, magenta, and cyan in the recording medium conveying direction. They are arranged from the side to form a recording device assembly. Reference numeral 200 denotes an ejection recovery unit, which is configured to face the recording apparatus assembly instead of the recording medium R in the ejection recovery process, and includes a cap, an ink absorber, a wiping blade, and the like.

Regarding the typical structure and principle thereof, see, for example, US Pat. Nos. 4,723,129 and 4740.
What is done using the basic principles disclosed in 796 is preferred. This method is a so-called on-demand type,
Although it can be applied to any of the continuous type, particularly in the case of the on-demand type, the recorded information is recorded on the sheet holding the liquid (ink) or the electrothermal converter arranged corresponding to the liquid path. By applying at least one drive signal that provides a rapid temperature rise beyond nucleate boiling, causing thermal energy to be generated in the electrothermal converter, causing film boiling on the heat-acting surface of the recording head, resulting in It is effective because bubbles can be formed in the liquid (ink) in a 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 this drive signal into a pulse shape, because the bubble growth and contraction are immediately and appropriately performed, so that the ejection of the liquid (ink) with excellent responsiveness can be achieved. As the pulse-shaped drive signal, U.S. Pat. Nos. 4,463,359 and 4,345 are used.
Those as described in the '262 patent are suitable. If the conditions described in US Pat. No. 4,313,124 of the 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 discharge 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 and US Pat. No. 4, which disclose a configuration in which a heat acting portion is arranged in a bending region.
The structure using the specification of 459600 is also included in the present invention. In addition, for a plurality of electrothermal conversion pairs, a configuration in which a common slit is used as the discharge portion of the electrothermal conversion body is disclosed in Japanese Patent Laid-Open No. 123670/1984, or an opening for absorbing a pressure wave of thermal energy. The present invention is also effective as a configuration based on Japanese Patent Application Laid-Open No. 138461/1984, which discloses a configuration in which the above is associated with the discharge portion.

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. It may have either a structure satisfying the length or a structure as one recording head integrally formed, but the present invention can more effectively exhibit the above-mentioned effects.

In addition, by being mounted in 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. Specifically, the recording head is preheated by a capping means, a cleaning means, a pressurizing or sucking means, an electrothermal converter, a heating element other than this, or a combination thereof. It is also effective to perform stable recording by performing a preliminary discharge mode in which discharge is performed separately from the means and the 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.

[0040]

As described above, according to the recording apparatus of the present invention, the image data signal of a plurality of colors is serially input to the image data signal terminal which is one terminal of the driving integrated circuit mounted in the recording apparatus, By arranging each color data so as to correspond to the recording element of each color, colorization can be easily performed. Further, the recording elements for each color can be sequentially driven by arranging each color as one block for a plurality of colors.

In order to provide a highly reliable recording device which is an object of the present invention, a plurality of recording elements and functional elements and a driving integrated circuit are structurally provided inside the surface of the same substrate. The heat dissipation effect of the recording element is remarkably improved, and a recording apparatus with high yield can be provided. Further, by cascade-connecting such recording devices, it is possible to provide a recording device capable of high-density and high-speed printing, and a low-cost color printer or the like can be realized.

As long as the present invention exhibits the above effects, it is not limited to the use, resolution, etc. of the recording apparatus.
Further, in the colorization described in the embodiment, the constitutional example is shown by using three colors of cyan, magenta and yellow, but the monochrome portion is constituted by four colors of cyan, magenta, yellow and black so as to record only black. However, it goes without saying that the same effect can be obtained.

Also, wiring resistance can be reduced by incorporating a shift register, driver transistor, etc., which were conventionally placed away from the board, on the board. That is, energy loss can be suppressed as compared with the conventional configuration. In particular, in an ink jet using heat, a large current of several hundred milliamperes is required as a driving current for the principle of bubbling the liquid, which is very effective. In addition, the effect is particularly great in a battery-driven device.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a color liquid jet recording apparatus to which the present invention can be applied.

FIG. 2 is a schematic configuration diagram of a monochrome liquid jet recording apparatus to which the present invention can be applied.

FIG. 3 is a semiconductor chip configuration diagram of a recording apparatus to which the present invention can be applied.

FIG. 4 is a schematic diagram of a semiconductor chip configuration of a recording device to which the present invention can be applied.

FIG. 5 is a schematic configuration diagram around an ink ejection port of a liquid jet recording apparatus to which the present invention can be applied.

FIG. 6 is a sectional view of the vicinity of an ink ejection port of a liquid jet recording apparatus to which the present invention can be applied.

FIG. 7 is a configuration diagram in which semiconductor chips of a recording apparatus to which the present invention is applicable are cascade-connected.

FIG. 8 is a configuration diagram in which semiconductor chips of a recording apparatus to which the present invention is applicable are connected in a staggered cascade.

FIG. 9 is a configuration diagram in which a semiconductor chip portion of a recording apparatus to which the present invention is applicable is elongated.

FIG. 10 is a schematic configuration diagram of a serial printer in which a liquid jet recording head to which the present invention is applicable can be mounted.

FIG. 11 is a schematic configuration diagram of a line printer in which a liquid jet recording head to which the present invention is applicable can be mounted.

FIG. 12 is a circuit block diagram of a color recording apparatus to which the present invention can be applied.

FIG. 13 is a circuit block diagram when the color recording apparatuses to which the present invention is applicable are cascade-connected.

FIG. 14 is a circuit block diagram showing a conventional color recording apparatus.

FIG. 15 is a drive timing chart of a color recording apparatus to which the present invention can be applied.

FIG. 16 is a drive timing chart of a monochrome recording apparatus to which the present invention can be applied.

FIG. 17 is a drive timing chart when the color recording apparatuses to which the present invention is applicable are connected in cascade.

FIG. 18 is a partial cross-sectional view of a recording head to which the recording head substrate of the present invention can be applied.

[Explanation of symbols]

1001 orifice plate 1002 ejection port 1003 semiconductor chip 1004 connection pad 1005 recording element 1006 ink supply member 1007 ink tank 1008 flying droplets 1009 bubbles 1010 ink liquid chamber 1011 VH-recording element wiring (A12) 1012 VH-functional element wiring (A12) 1013 Functional element-GND wiring (A12) 1014 VH wiring (A11) 1015 Functional element (first column) 1016 Functional element (second column) 1017 GND wiring (A11) 1018 Functional element base (gate) wiring (polysilicon) 1019 Enable wiring (A11) 1020 Latch wiring (A11) 1021 Serial data wiring (A11) 1022 Clock wiring (A11) 1023 Logic gate logic 1024 Latch circuit 1025 Shift Register 1 1026 Shift register 2 1027 Interlayer insulating film 1028 Heat storage layer 1029 Silicon layer 1030 Connection member 1031 Common liquid chamber 1032 Ink supply pipe 1033 Strobe input terminal 1034 Enable input terminal 1035 Latch input terminal 1036 Serial data input terminal 1037 Clock input terminal 1038 GND Terminal 1039 VH terminal 1040 Strobe output terminal 1041 Enable output terminal 1042 Latch output terminal 1043 Serial data output terminal 1044 Clock output terminal

Continuation of front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI Technical indication location 8804-2C B41J 29/00 C (72) Inventor Shuichi Murakami 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Incorporated (72) Inventor Hiroto Matsuda 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (9)

[Claims] 1. A printhead substrate having a plurality of recording elements and a plurality of functional elements electrically connected to the recording elements, wherein the substrate selectively selects the recording elements corresponding to image data. A driving integrated circuit for supplying a recording current is provided, and the driving integrated circuit has a function of converting serially input image data into a parallel signal supplied to the recording element side. 2. A recording head having the recording head substrate according to claim 1 and a flow path for supplying ink to the recording element. 3. A recording apparatus having a plurality of recording elements and a plurality of functional elements electrically connected to the recording elements, wherein a recording current is selectively applied to the recording elements corresponding to image data. A recording apparatus, comprising: a driving integrated circuit for driving a plurality of color image data signals serially input to an image data signal terminal which is one end of the driving integrated circuit mounted on the recording apparatus. 4. The plurality of recording elements and the driving integrated circuit are arranged such that recording elements corresponding to recording of respective colors and respective color data included in the image data signals of the plurality of colors have a one-to-one correspondence. The recording apparatus according to claim 3, wherein: 5. The recording apparatus according to claim 1, wherein the plurality of recording elements are arranged by dividing each color into a plurality of colors, with each block as one block. 6. The recording apparatus according to claim 1, wherein the plurality of recording elements, functional elements, and driving integrated circuits are structurally provided inside the surface of the same substrate. 7. A recording apparatus comprising a plurality of the recording apparatuses connected in cascade. 8. The recording device is made to correspond to each color,
A recording device comprising a plurality of cascade-connected devices. 9. A recording apparatus, wherein the recording element is used as an electrothermal conversion element for ejecting ink.