Constitution member for liquid discharge device, and liquid discharge device

Abstract

To reduce an area of a pattern to be formed on a member used in a liquid discharge device.SOLUTION: A constitution member, which is stacked in multiple pieces to form a liquid chamber of a liquid discharge device, comprises: a joint surface which brings another member into contact with the constitution member; and a pattern which is formed on a first side forming the joint surface or a second side which is orthogonal to the first side and forms the joint surface. The pattern has an acute formation angle which is formed at an intersection point between a contour of the joint surface constituting the pattern and the first side or the second side.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a component for a liquid ejection device, and to a liquid ejection device. [Background technology]

[0002] A technique is known for an inkjet type liquid ejection device that uses a bonding material to bond a plurality of overlapping members together, and a technique is also known for inspecting misalignment that occurs between the members when bonding the members together.

[0003] Specifically, in order to inspect the misalignment, a pattern is formed in advance on a member constituting each layer. The patterns formed on each layer are a first annular pattern and a second annular pattern, and the distance between the first annular pattern and the second annular pattern is measured. A technique for calculating the amount of misalignment from the measurement results is known (for example, see Patent Document 1, etc.). Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional technology, when the detection accuracy is to be increased, the area of ​​the pattern formed on the member used in the liquid ejection device becomes so large that it fills the area of ​​the member. In particular, the conventional technology has a problem that the area of ​​the pattern becomes larger as the number of members increases.

[0005] In view of the above problems, an object of the present invention is to reduce the area of ​​a pattern formed on a member used in a liquid ejection device. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the object, a component member that constitutes a liquid chamber of a liquid ejection device by stacking a plurality of sheets is a joining surface for bringing another member into contact with the component member; a pattern formed on a first side that forms the bonding surface, or a second side that is perpendicular to the first side and forms the bonding surface; The pattern is The angle formed at the intersection of the contour of the joining surface constituting the pattern and the first side or the second side is an acute angle. Effect of the Invention

[0007] According to the present invention, it is possible to reduce the area of ​​a pattern formed on a member used in a liquid ejection device. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 illustrates an example of a liquid ejection device. [Diagram 2] FIG. 1 is a diagram (side view) illustrating an example of a liquid ejection device. [Diagram 3] FIG. 1 is a diagram (top view) illustrating an example of a liquid ejection device. [Figure 4] FIG. 2 is a cross-sectional view of a head portion of the inkjet recording device. [Diagram 5] FIG. 2 is a diagram showing examples of components. [Figure 6] This is an example of overlapping components. [Figure 7] FIG. 13 is a diagram showing an example of a pattern. [Figure 8] FIG. 13 is a diagram showing a measurement example. [Figure 9] FIG. [Figure 10] 3A to 3C are diagrams illustrating examples of a first component member, a second component member, and a third component member. [Figure 11] FIG. 2 is a diagram showing an example in which a first component member, a second component member, and a third component member are overlapped. [Figure 12] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, specific examples will be described with reference to the accompanying drawings. Note that the embodiment is not limited to the specific examples described below.

[0010] [Example of liquid ejection device configuration] In the following, an example of an inkjet recording device in which a liquid ejection device forms an image by an inkjet method will be described. In this example, the liquid is ink. The ink is stored in a liquid chamber in advance. Next, the liquid ejection device controls the ejection of the ink from the liquid chamber based on image data.

[0011] 1 is a diagram showing an example of a liquid ejection device. Specifically, the inkjet recording device has a device main body 101, a paper feed tray 102, a paper discharge tray 103, and an ink cartridge loading device 104.

[0012] A paper feed tray 102 is used to load paper into the device body 101 .

[0013] A paper discharge tray 103 stores the paper on which an image has been formed.

[0014] The ink cartridge loading device 104 has an openable and closable front cover 115 for installing and removing the ink cartridge 201 .

[0015] FIG. 2 is a diagram (side view) showing an example of a liquid ejection device.

[0016] FIG. 3 is a diagram (top view) illustrating an example of a liquid ejection device.

[0017] 2 and 3, inside the device body 101, a carriage 133 is held slidably in the main scanning direction by a guide rod 131, which is a guide member that is hung between the left and right side plates, and a stay 132, and scans by a main scanning motor. The scanning direction is the "carriage scanning direction" in FIG. 3.

[0018] The carriage 133 is equipped with four inkjet recording heads (hereinafter referred to as "recording heads 134") that eject ink of each color. The recording heads 134 have a plurality of ink ejection ports arranged in a direction intersecting the main scanning direction. The recording heads 134 are disposed so that the direction in which they eject ink droplets faces downward.

[0019] The colors are, for example, four colors: yellow (Y), cyan (C), magenta (M), and black (Bk). However, the colors may be other than the above four colors by changing the type of ink.

[0020] The recording head 134 includes a piezoelectric actuator, a thermal actuator, a shape memory alloy actuator, an electrostatic actuator, or the like.

[0021] The carriage 133 also carries a sub-tank 135 that supplies ink to the recording head 134. The sub-tank 135 is supplied with ink from an ink cartridge 201 loaded in the ink cartridge loading device 104 via an ink supply tube.

[0022] Meanwhile, papers 142 are stacked on a paper stacking plate 141 of the paper feed tray 102. A paper feed roller 143 separates the papers 142 from the paper stacking plate 141 one by one and feeds them.

[0023] Further, a separation pad 144 is provided at a position facing the paper feed roller 143. The separation pad 144 is made of a material having a large coefficient of friction. The separation pad 144 is provided on the paper feed roller 143 side.

[0024] The paper 142 is conveyed below the recording head 134. A conveyor belt 151 conveys the paper 142 by electrostatically adsorbing it. A counter roller 152 conveys the paper 142 conveyed via a guide 145 by pinching it between the conveyor belt 151.

[0025] The conveying guide 153 turns the paper 142 conveyed vertically upward by 90 degrees so that the paper 142 follows the conveying belt 151 .

[0026] The leading end pressure roller 155 is disposed on the conveyor belt 151 side by a pressing member 154. A charging roller 156 charges the surface of the conveyor belt 151 with electricity.

[0027] The conveyor belt 151 is an endless belt. The conveyor belt 151 is stretched between a conveyor roller 157 and a tension roller 158, and can rotate in the conveying direction.

[0028] The conveyor belt 151 is, for example, a resin material with a thickness of about 40 μm that is not subjected to resistance control. Specifically, the conveyor belt 151 has a surface layer that serves as an adsorption surface formed of a copolymer of tetrafluoroethylene and ethylene (ETFE), and a back layer (medium resistance layer, earth layer) made of the same material as the surface layer and subjected to resistance control with carbon.

[0029] A guide member 161 is disposed on the rear side of the conveyor belt 151, corresponding to the printing area by the recording head 134. A separation claw 171 separates the paper 142 from the conveyor belt 151. Then, a paper discharge roller 172 and a paper discharge roller 173 discharge the paper 142. In addition, a paper discharge tray 103 is disposed below the paper discharge roller 172.

[0030] A duplex paper feed unit 181 is detachably attached to the rear of the device body 101. The duplex paper feed unit 181 takes in and inverts the paper 142 returned by the reverse rotation of the conveyor belt 151. The paper 142 is then conveyed between the counter roller 152 and the conveyor belt 151. A manual paper feed device 182 is installed on the upper surface of the duplex paper feed unit 181.

[0031] The sheets 142 are separated and fed one by one. Then, the sheets 142 fed upward are guided by a guide 145, and are conveyed while being sandwiched between a conveyor belt 151 and a counter roller 152. Furthermore, the leading edge of the sheet 142 is guided by a conveyor guide 153, and the leading edge pressure roller 155 presses the sheet against the conveyor belt 151, changing the conveying direction by 90°.

[0032] The charging roller 156 charges the conveyor belt 151. Therefore, the paper 142 is electrostatically attracted to the conveyor belt 151 and conveyed. In response to this, the carriage 133 is moved, and the recording head 134 is driven in response to an image signal. Next, the recording head 134 ejects ink onto the paper 142 to record one line. After conveying the paper 142 a predetermined distance, the recording head 134 records the next line.

[0033] When a signal indicating the end of recording is received or when the rear end of the paper 142 reaches the recording area, the recording head 134 ends image formation. Then, the paper 142 is discharged onto the paper discharge tray 103.

[0034] When the remaining amount of ink in the subtank 135 becomes low (sometimes referred to as "low ink level is detected"), ink is replenished from the ink cartridge 201 to the subtank 135. Also, when the ink in the ink cartridge 201 is used up, only the internal ink bag in the ink cartridge 201 can be replaced.

[0035] The ink cartridge 201 can supply ink even when placed vertically. Therefore, even if the top of the device body 101 is blocked (for example, when stored in a rack or when an object is placed on the top surface of the device body 101), the ink cartridge 201 can be easily replaced.

[0036] Although the above description has been given taking as an example a serial type in which the carriage 133 scans, the inkjet recording apparatus may be a line type equipped with a line head.

[0037] The inkjet recording device may be, for example, an inkjet recording printer, a facsimile machine, a copying machine, or a multifunction machine.

[0038] 4 is a cross-sectional view of a head portion of an inkjet recording device. Hereinafter, the head portion of an inkjet recording device that ejects ink will be simply referred to as the "head".

[0039] The head includes a frame 10, a fluid resistor 2a, a flow path plate 20, a nozzle plate 32, a vibration plate 60, a laminated piezoelectric element 50, and a base 40.

[0040] The frame 10 has an ink supply port and a liquid chamber 1b formed therein.

[0041] The flow passage plate 20 is formed with a communication port 2c that communicates with the pressurized liquid chamber 2b and the nozzle 3a.

[0042] In the nozzle plate 32, the nozzles 3a are formed.

[0043] The diaphragm 60 is formed with a protrusion 6a, a diaphragm 6b, and an ink inlet 6c.

[0044] The multilayered piezoelectric element 50 is bonded to the vibration plate 60 via an adhesive layer 70. The multilayered piezoelectric element 50 is also fixed to the base 40.

[0045] The base 40 is made of barium titanate ceramics, etc. For example, the base 40 is bonded to the laminated piezoelectric elements 50 arranged in two rows.

[0046] The multilayer piezoelectric element 50 is configured by alternately laminating piezoelectric layers of lead zirconate titanate (PZT) with a thickness of 10 to 50 μm per layer and internal electrode layers made of silver-palladium (AgPd) or the like with a thickness of several μm per layer, for example. The internal electrode layers are connected to external electrodes at both ends.

[0047] The multilayer piezoelectric element 50 is formed into a comb-like shape by dicing etc. The multilayer piezoelectric element 50 also includes a driving device 5f and a support mechanism 5g (the support mechanism 5g is not driven).

[0048] The outside of the external electrode is divided by, for example, dicing and the length is limited by processing such as notching. One of these becomes a plurality of individual electrodes, while the other is not divided by dicing and is conductive, becoming a common electrode.

[0049] An FPC is connected to the individual electrodes of the driving device 5f by soldering or the like. The common electrode is provided with an electrode layer at the end of the laminated piezoelectric element and is connected to the ground of the FPC. A driver IC is mounted on the FPC and applies a driving voltage to the driving device 5f.

[0050] The protrusion 6 a is bonded to the multilayer piezoelectric element 50 .

[0051] The diaphragm 6b is a thin film having a thickness of, for example, 3 μm and a width of 35 μm on one side.

[0052] The driver 5f is formed in the center of the diaphragm 6b.

[0053] The ink inlet 6c is an opening portion, and is formed by stacking two layers of Ni plating film by electroforming.

[0054] The projection 6a, the driving device 5f, the diaphragm 60 and the frame 10 are bonded together by patterning an adhesive layer 70 containing a gap material.

[0055] The flow path plate 20 is formed, for example, by patterning a silicon single crystal substrate with an etching method to form engraved portions that will become the fluid resistors 2a and the pressurized liquid chambers 2b, and through holes that will become the communication ports 2c at the positions of the nozzles 3a.

[0056] The portion that remains after etching becomes the partition wall 2d of the pressurized liquid chamber 2b. In addition, a portion where the etching width is narrowed is provided, and this becomes the fluid resistance 2a.

[0057] The nozzle plate 30 is made of a metal or a resin material. The nozzles 3a are minute ejection ports for ejecting ink. A plurality of nozzles 3a are formed. The internal shape of the nozzles 3a is, for example, a horn shape (which may be a substantially cylindrical shape or a substantially truncated cone shape). The diameter of the nozzles 3a is the diameter of the outlet side from which the ink is ejected. For example, the diameter of the nozzles 3a is about 20 to 35 μm. The nozzle pitch of each row is, for example, 150 dpi.

[0058] The ink ejection surface (also referred to as the "nozzle surface side") of the nozzle plate 30 has an ink-repellent layer 31 that has been subjected to an ink-repellent surface treatment. The ink-repellent layer 31 is formed on the ink ejection surface side of the nozzle plate 30.

[0059] The ink-repellent layer 31 may be formed, for example, by masking the inside of the nozzle hole with a water-soluble resin, applying the ink-repellent layer 31, and then peeling off the water-soluble resin.

[0060] The ink-repellent layer 31 is an ink-repellent layer to which hydrophobically treated inorganic pigments do not adhere or adsorb, and is made of a compound layer containing a perfluoropolyether (PFPE) skeleton in its molecules.

[0061] An inorganic oxide layer may be provided between the nozzle substrate and the ink-repellent layer to improve adhesion by providing a large number of hydroxyl groups that serve as bonding points with compounds that contain a PFPE skeleton in their molecules.

[0062] The inorganic oxide layer is made of SiO2, TiO2, etc. The thickness of the inorganic oxide layer is preferably 0.001 to 0.2 μm, and more preferably 0.01 to 0.1 μm.

[0063] The compound containing a PFPE skeleton in the molecule is a low molecular weight substance, a resin, etc. For example, the compound containing a PFPE skeleton in the molecule is disclosed in JP-B-3-43065, JP-A-6-210857, JP-A-10-32984, JP-A-2000-94567, JP-A-2002-145645, JP-A-2003-341070, JP-A-2007-106024, or JP-A-2007-125849.

[0064] Specific examples thereof include krytoxFSL (manufactured by Dupont), krytoxFSH (manufactured by Dupont), FomblinZ (manufactured by Solvay Solexis), FLUOROLINKS10 (manufactured by Solvay Solexis), Optool DSX (manufactured by Daikin Industries, Ltd.), FLUOROLINKC10 (manufactured by Solvay Solexis), MORESCO PHOSPHOROL A20H (manufactured by Matsumura Oil Research Institute Co., Ltd.), MORESCO PHOSPHOROL ADOH (manufactured by Matsumura Oil Research Institute Co., Ltd.), MORESCO PHOSPHOROL DDOH (manufactured by Matsumura Oil Research Institute Co., Ltd.), Fluorosurf FG5010 (manufactured by Fluorotechnology Co., Ltd.), Fluorosurf FG5020 (manufactured by Fluorotechnology Co., Ltd.), Fluorosurf FG5060 (manufactured by Fluorotechnology Co., Ltd.), and Fluorosurf FG5070 (manufactured by Fluorotechnology Co., Ltd.).

[0065] A preferred example is modified perfluoropolyoxetane (Optool DSX manufactured by Daikin Industries, Ltd.) The thickness of the ink repellent layer is preferably 0.0001 to 0.02 μm, and more preferably 0.001 to 0.01 μm.

[0066] Examples of methods for forming an ink-repellent layer using a compound containing a PFPE skeleton in its molecule include coating such as spin coating, roll coating, and dipping using a fluorine-based solvent, printing, and vacuum deposition, etc. Examples of fluorine-based solvents include Novec (manufactured by Sumitomo 3M), Vertrel (manufactured by DuPont), and Galden (manufactured by Solvay Solexis).

[0067] When a drive waveform (for example, a pulse voltage of 10 to 50 V) is applied to the drive unit 5f in response to a recording signal, the drive unit 5f is displaced in the stacking direction. Then, the pressurized liquid chamber 2b is pressurized via the vibration plate 60, the pressure increases, and ink is ejected from the nozzle 3a.

[0068] After that, when the ink is ejected, the ink pressure in the pressurized liquid chamber 2b decreases, and negative pressure is generated in the pressurized liquid chamber 2b due to the inertia of the ink flow and the discharge process of the drive pulse. This causes a transition to the ink filling process.

[0069] Ink supplied from an ink tank flows into the liquid chamber 1b, then flows from the liquid chamber 1b through the ink inlet 6c, passes through the fluid resistor 2a, and fills the pressurized liquid chamber 2b.

[0070] While the fluid resistance 2a is effective in damping residual pressure vibrations after ejection, it also acts as a resistance to refilling caused by surface tension. By appropriately selecting the fluid resistance, it is possible to achieve a balance between the damping of residual pressure and the refill time, and shorten the time until the next ink droplet ejection operation (also called the "drive cycle").

[0071] [Examples of components] Hereinafter, the component 300 is used by stacking multiple sheets in the vertical direction (the "Z-axis direction" in the figure). The directions perpendicular to the vertical direction are referred to as the "first direction" and the "second direction". The first direction is referred to as the "X-axis direction" and the second direction is referred to as the "Y-axis direction".

[0072] The XY plane becomes a "joint surface 303" when stacking the components 300. The joint surface 303 will be described in detail later.

[0073] Fig. 5 is a diagram showing an example of a component member, specifically, Fig. 5 shows a component member 300 in a front view, a side view, and a top view.

[0074] 5, for example. Hereinafter, component 300 comes into contact with another component at joint surface 303. Note that joint surface 303 may be both sides of component 300, and other components may come into contact with both sides of component 300, or only one side of component 300 may come into contact with other components.

[0075] 4, the components 300 are stacked to form a space in the Z-axis direction from the vibration plate 60 to the nozzle plate 30. However, the components 300 may form spaces other than these.

[0076] The joint surface 303 is formed by a side in the X-axis direction (hereinafter referred to as "first side 301") and a side in the Y-axis direction (hereinafter referred to as "second side 302").

[0077] Hereinafter, the pattern formed on the first side 301 for inspection will be referred to as a "first pattern 310." Similarly, the pattern formed on the second side 302 will be referred to as a "second pattern 320." In the following example, a description will be given of an example in which one pattern is formed on the first side 301 and one on the second side 302. Note that the number of patterns may be three or more.

[0078] However, it is desirable that the total area of ​​the patterns be small. Therefore, it is desirable that the number of patterns be one on the first side 301 and one on the second side 302, that is, two in total.

[0079] Fig. 6 shows an example of a case where components are stacked. For example, the components 300 are used by stacking them in the Z-axis direction. Specifically, Fig. 6 shows an example of a case where three components 300 are stacked.

[0080] All three constituent members 300 have the shape shown in Fig. 5, that is, the shape in which the second pattern 320 is formed in each constituent member 300. Therefore, as shown in Fig. 6, by measuring the second pattern 320 in the constituent member 300 from the side (from a viewpoint in which the ZY plane is the front), the deviation of the second pattern 320 can be measured.

[0081] For example, the pattern is detected by a filter process that detects edges, etc. Then, by calculating the positional relationship of the edges, the deviation of the second pattern 320 can be measured.

[0082] [Pattern example] 7 is a diagram showing an example of a pattern. In the following, an example in which the pattern is a "second pattern 320" will be described.

[0083] In second pattern 320, line segment 304 and the like form a contour on joining surface 303. Hereinafter, the angle formed at intersection 305 between the contour and second side 302 will be referred to as "formed angle θ."

[0084] The second pattern 320 has a formed angle θ of less than 90°, that is, an acute angle. When the formed angle θ is an acute angle, the edge formed at the intersection 305 can be easily detected by a measuring device.

[0085] When measuring with a measuring instrument, it is preferable to use so-called "incident light" illumination, which is projected from the measuring instrument onto the pattern. Incident light illumination makes edges stand out more, improving edge detection accuracy. Therefore, even for patterns with small areas, it is possible to improve the positional accuracy of overlapping the component 300.

[0086] Fig. 8 is a diagram showing a measurement example. For example, from a state in which the second side 302 coincides with the Y-axis direction as shown in Fig. 8(A), the component 300 is rotated around the Z-axis as the center of rotation so as to form a rotation angle α with respect to the Y-axis as shown in Fig. 8(B) (this is the so-called "Yaw rotation").

[0087] When an edge formed at intersection 305 is detected based on an image captured by a measuring device in the state shown in FIG. 8A, the distance between the edges (hereinafter referred to as "first edge distance L1") is measured.

[0088] In contrast, after component 300 rotates by the rotation angle α as shown in FIG. 8B, when the edges are detected in the same manner as before the rotation, the distance between the edges (hereinafter referred to as "second edge distance L2") is measured.

[0089] The rotation angle α is calculated based on the first edge distance L1 and the second edge distance L2 by the following formula (1). Rotation angle α = arccos(second edge distance L2 / first edge distance L1) (1) As shown in the above formula (1), the rotation angle α is found by calculating the arc cosine of the result of dividing the second edge distance L2 by the first edge distance L1. Therefore, by measuring the first edge distance L1 and the second edge distance L2, it is possible to calculate the rotation angle α, that is, that the component 300 has rotated and a deviation of the rotation angle α has occurred.

[0090] In addition, when the constituent members 300 are superimposed, the misalignment in the X-axis direction or Y-axis direction that occurs between each of the constituent members 300 can also be calculated from the edge positions.

[0091] The component 300 is made of a material such as metal, resin, silicon, etc. The pattern is formed by, for example, etching, laser processing, wire cutting, electric discharge processing, mechanical processing, or the like.

[0092] It is desirable for the pattern dimensions to be small. For example, the pattern dimensions are formed to be on the order of several centimeters to several micrometers. However, the pattern dimensions depend on the size of the component 300, the accuracy of the measuring device, and the like.

[0093] [Variations] Fig. 9 is a diagram showing a modified example, in which the shape of the pattern formed at the intersection of the first side 301 and the second side 302 is different from that of Fig. 5.

[0094] For example, the pattern may be a shape such as an outline including a part of a circle (hereinafter referred to as a "circle 330") In the following, a circle 330 formed on the second side 302 will be described as an example.

[0095] The pattern of circle 330 can be manufactured by forming a perfectly circular through hole so that the center point 331 of circle 330 is located inside the second side 302, and the angle θ formed at the intersection of circle 330 and second side 302 is an acute angle.

[0096] Thus, the pattern may be a shape such as a circle, etc. Alternatively, the pattern may be a polygon.

[0097] In addition, the pattern may have its edge portions processed. For example, the edges, i.e., the portions detected by the measuring instrument, may be colored or chamfered. In this way, when the edge portions are colored or the like, the contrast with other portions can be increased. Therefore, the accuracy of edge detection by the measuring instrument can be improved.

[0098] [Examples of the first component, the second component, and the third component] 10 is a diagram showing an example of a first component member, a second component member, and a third component member. For example, a case where a first component member 401, a second component member 402, and a third component member 403 are stacked is taken as an example.

[0099] Fig. 11 is a diagram showing an example in which a first component member, a second component member, and a third component member are stacked. As shown in Fig. 11, the first component member 401, the second component member 402, and the third component member 403 are stacked in this order. In this order, it is preferable that the first component member 401 and the second component member 402, which are in contact with each other, have different patterns. Similarly, it is preferable that the second component member 402 and the third component member 403, which are in contact with each other, have different patterns.

[0100] The first component member 401 and the third component member 403 are the same as those in Fig. 5. In contrast, the second component member 402 has a first pattern (hereinafter referred to as "41st pattern 410") formed on the first side 301 and a second pattern (hereinafter referred to as "42nd pattern 420") formed on the second side 302 that are different.

[0101] The first pattern and the second pattern formed on the first component member 401, the second component member 402, and the third component member 403 respectively have different sides and opening directions, but have the same shape.

[0102] For example, the 41st pattern 410 has a longer opening, i.e., a wider space between the edges, than the first pattern 310. The patterns of the first component member 401 and the second component member 402 may have different shapes other than the size of the opening.

[0103] As shown in Figure 11, if the patterns of the components that come into contact with each other are different during measurement, it becomes easier to distinguish them, and the efficiency of the measurement can be improved. Also, if the patterns of the components that come into contact with each other are different, the risk of making a mistake in distinguishing layers during measurement can be reduced. Furthermore, it is possible to prevent the order of the components from being confused during measurement.

[0104] [Comparative Example] 12 is a diagram showing a comparative example. The structural member of the comparative example (hereinafter simply referred to as "Comparative Example 150") is an example of an "obtuse angle γ" in which the angle formed between the outline of the pattern and second side 302 is 90° or more.

[0105] When the angle γ is obtuse as in Comparative Example 150, the edge detection accuracy often deteriorates.

[0106] [Other embodiments] The liquid ejection device may perform processes other than image formation. For example, the processes may be semiconductor manufacturing, surface treatment, formation of an electronic circuit resist pattern, or three-dimensional modeling. Specifically, the liquid ejection device may be a three-dimensional modeling device (also called a "three-dimensional modeling device") that ejects modeling liquid onto a powder layer formed by forming a layer of powder in order to form a three-dimensional object (also called a "three-dimensional object"). Therefore, the liquid may be something other than ink depending on the process.

[0107] A pre-processing device may be provided near the liquid ejection device, or the pre-processing device may be integrated with the liquid ejection device.

[0108] There may be a plurality of liquid ejection devices, preprocessing devices, or information processing devices, that is, each process may be performed in a distributed, parallel, or redundant manner by a plurality of devices.

[0109] For example, aspects of the present invention are as follows.

[0110] <1> A component that constitutes a liquid chamber of a liquid ejection device by stacking a plurality of sheets, a joining surface for bringing another member into contact with the component member; a pattern formed on a first side that forms the bonding surface, or a second side that is perpendicular to the first side and forms the bonding surface; The pattern is An angle formed at an intersection of a contour of the joining surface constituting the pattern and the first side or the second side is an acute angle. It is a component.

[0111] <2> The pattern is A groove is formed through the component in a direction perpendicular to the overlapping of the component. the above <1> It is a component described in.

[0112] <3> The pattern is A plurality of patterns including at least a first pattern and a second pattern are formed, Among the plurality of patterns, the first pattern is: formed on the first side, Among the plurality of patterns, the second pattern is: The second side is formed the above <1> or <2> It is a component described in.

[0113] <4> The first component, the second component, and the third component are stacked together, The first component and the second component are in contact with each other, The second component and the third component are in contact with each other, The first component, the second component, and the third component include: A plurality of patterns having the same contour shape are formed. the above <1> ~ <3> The component according to any one of claims 1 to 5.

[0114] <5> The contour portion includes: Colored or processed the above <1> ~ <4> The component according to any one of claims 1 to 5.

[0115] <6> The joining surface is A surface defined by a first direction perpendicular to the vertical direction in which the components are stacked, and a second direction perpendicular to the first direction, The contour is The shape is a part of a circle or a polygon. the above <1> ~ <5> The component according to any one of claims 1 to 5.

[0116] <7> the above <1> ~ <6> The liquid chamber is configured with the component member according to any one of claims 1 to 5. A liquid ejection device.

[0117] The present invention is not limited to the above-mentioned embodiments. Therefore, the present invention can be modified or modified without departing from the technical gist of the invention. Therefore, all technical matters included in the technical ideas described in the claims are the subject of the present invention. The above-mentioned embodiments are preferred examples. Those skilled in the art can realize various modifications from the disclosed contents, and such modifications are included in the technical scope described in the claims. [Explanation of symbols]

[0118] 1b:Liquid chamber 101: Device body 300: Components 301: Side 1 302: Side 2 303: Joint surface 304: Line segment 305: Intersection 310: First pattern 320: Second pattern 330:Circular 331: Center point 401: First component 402: Second component 403: Third component 410: 41st pattern 420: 42nd pattern L1: First edge distance L2: Second edge distance α: Rotation angle γ: obtuse angle θ: Formation angle [Prior art documents] [Patent documents]

[0119] [Patent Document 1] JP 2010-050148 A

Claims

1. A component that constitutes a liquid chamber of a liquid ejection device by stacking a plurality of sheets, a joining surface for bringing another member into contact with the component member; a pattern formed on a first side that forms the bonding surface or a second side that is perpendicular to the first side and forms the bonding surface; The pattern is An angle formed at an intersection of a contour of the joining surface constituting the pattern and the first side or the second side is an acute angle. Constituent material.

2. The pattern is A groove is formed through the component in a direction perpendicular to the overlapping of the component.

2. The component of claim 1.

3. The pattern is A plurality of patterns including at least a first pattern and a second pattern are formed, Among the plurality of patterns, the first pattern is formed on the first side, Among the plurality of patterns, the second pattern is The second side is formed 2. The component of claim 1.

4. A configuration in which the first component, the second component, and the third component are overlapped, The first component and the second component are in contact with each other, The second component and the third component are in contact with each other, The first component, the second component, and the third component include: A plurality of patterns having the same contour shape are formed.

2. The component of claim 1.

5. The contour portion includes: Colored or processed 2. The component of claim 1.

6. The joining surface is a surface including a first direction perpendicular to the direction perpendicular to which the components are stacked, and a second direction perpendicular to the first direction; The contour is The shape is a part of a circle or a polygon.

2. The component of claim 1.

7. The liquid chamber is formed of the component according to claim 1. Liquid discharge device.

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