The method of assembly of microinjector and device for implementing the method
(57) Abstract:The proposed method and device for assembling microinjector, in which the plate with the heating elements, which formed lots of heating elements, fixed mounting on the vacuum table and the membrane made regardless inkjet element, set so that it was located at a specified distance from the plate with heating elements, and the membrane is fixed on the plate with the heating elements so that it is possible to prevent frequent displacement of the membrane in the process of placing and Assembly, thereby pre-prevents damage to the membrane and eliminates the need of placing a membrane on each heating element, thus reducing the time, required for Assembly. These features will help to reduce the build time microinjector, to prevent damage to the membrane during Assembly and to improve the performance of microinjector. 2 C. and 10 C.p. f-crystals, 7 Il. The invention relates to microinjector, suited for use in an inkjet printer, Micronase used in medical Ohm membrane can be glued to the set of heating elements. The present invention also relates to a device for assembling such microinjector.In General, microinjector is a device that is designed to submit the paper for printing, the human body or vehicle of a certain amount of liquid such as ink injected fluid or oil, using a method in which the aforementioned liquid applied electrical or thermal energy to the specified value so that you can cause volumetric transformation of such liquid. Therefore, a specific object can be made a specified number of such liquid.Recently, the development of electric and electronic technology has enabled rapid progress in the development of such microinjection. As a consequence, microinjector widely used by the person at home and at work. As an example application of microinjector in a person's life can lead to an inkjet printer.Unlike conventional dot-matrix printer ink-jet printer, that is one of the types of microinjector capable of printing different colors by using chartrier gaining popularity.Currently, the inkjet printer is usually provided with a printhead having orifices (nozzles) with the smallest diameter. In such a printhead of an inkjet printer inks, which are in the liquid state, is converted and expanded to the state of bubbles by switching on or off of the electric signal received from an external device. After that, the ink is transformed into bubbles in such a way, forced to perform printing on the printing paper.Various design and operation of an inkjet printhead according to the prior art has been disclosed in U.S. patent N 4490728, entitled "Thermal inkjet printer" ("Inkjet printer with a heated printing elements"), U.S. patent N 4809428, entitled "Thin film device for an inkjet printhead and process for manufacturing the same" ("thin-film device for an inkjet printhead and method of fabrication"), in U.S. patent N 5140345 "Method of manufacturing a substrate for a liquid jet recording head and substrate manufactured by the method (the Method of manufacturing a substrate for ink-jet recording head and the substrate produced by this method"), U.S. patent N 5274400 "Ink path geometry for high temperature operation of the inkjet printheads" ("the Geometry of the trajectory of ink for viscotester the LASS="ptx2">In such a conventional ink-jet printhead for extrusion of ink used outside high temperature, which creates a resistive heating layer. In this case, if such a high temperature for a long period of time affects the ink contained in the ink chamber for thermal changes in the components of the ink can significantly reduce the durability of the device.Recently, to overcome the above problems has been proposed a technique in which between the resistive heating layer and the ink chamber for inserting the membrane in the form of the substrate, the three-dimensional transformation of the membrane is called the vapor pressure of the working fluid, for example liquid heptane, which fills the chamber for heating. Thus, the ink contained in the ink chamber for smoothly out of her.In this case, it is possible to avoid direct contact between the ink and the resistive heating layer, as between chamber for ink and the resistive heating layer is inserted membrane. Thereby, it is possible to minimize thermal changes in the ink.In U.S. patent N 5681152 "Membrane type fluid pump (membrane Pump for the fluid) and the matrix is applied above the diaphragm.Typically, such a membrane is precipitated on the jet element consisting of a plate of the nozzle and of the barrier layer camera for ink, via a given deposition method, for example, by a method of chemical deposition from the vapor phase.After this inkjet element, which precipitated membrane gather in one piece (integrally) with the heating element comprising a resistive heating layer and barrier layer chamber for heating, to thereby obtain completely ready inkjet printhead. In this case, the inkjet element, which precipitated the membrane, place independently on each heating element.The above method of forming the membrane and the placement of the jet element on the heating element disclosed in U.S. patent N 5752303 "Method for manufacturing a face shooter ink-jet printing head" ("Method of manufacturing an inkjet printhead directed action") and in U.S. patent N 5703622 "Inkjet head orifice plate mounting arrangement" ("Fixture mounting plate with holes for inkjet heads").However, such a conventional method of manufacturing an inkjet printhead has a number of drawbacks. As described above, the inkjet element, which serenaded, being made in one piece with jet element, it also independently placed on the respective heating element.If the membrane is independently at each heating element, the time required to complete the Assembly of an inkjet printhead, increases substantially.Thus, the production system as a whole can flexibly respond to emerging need for mass production of such devices.Meanwhile, as described above, the inkjet element, which precipitated the membrane is placed integrally with the heating element to obtain completely ready inkjet printhead. In this case, in order to install the jet element in the corresponding location of the heating element, an absolutely necessary process of putting in a specific position, serves to properly regulate the positions of the two elements relative to each other.However, the membrane is inserted between the jet element and the heating element, usually made in the form of extremely thin films. Therefore, in the case where the operations of placing and placing performed with a jet of elementar damaged due to contact with various peripheral auxiliary tools, for example, instruments for the transfer or pressing.In this case, the operational characteristics of the membrane is significantly reduced, and consequently its function of injection of ink can not be done quickly.In addition, if the Assembly is not yet completed, the membrane is inserted between the jet element and the heating element so that it was not open to influence (from the environment). Therefore, the worker is not able to quickly identify any damage that occurs on a given area of the membrane.If the electronic device has a print head that are in the same condition in which any damage to the membrane is not detected, the electronic device, for example an inkjet printer equipped with such a print head, is not able to provide excellent print quality.In the result due to these problems, performance, and other characteristics of the print as a whole is significantly reduced.Therefore, the aim of the present invention is to develop a method of assembling microinjector, in which the membrane and the heating element is set independently from each other (together), so the purpose of the present invention is to develop a method of assembling microinjector for a shorter time, thus, the production system can flexibly respond to the demands of mass production.Another objective of the present invention is to develop a method of assembling microinjector, in which the diaphragm displacement during the placing or Assembly is limited, in order thereby to prevent damage that can occur on the membrane.The next objective of the present invention is to develop a method of assembling microinjector to implementing the functions of the injection of the ink is carried out by membrane can be improved by such prevent damage.Another objective of the present invention is to develop a method of assembling microinjector at which the membrane can be opened (exposed) when the Assembly is not yet completed, so that any damage to the membrane can be quickly identified.Another objective of the present invention is to develop a method of assembling microinjector that any damage to the membrane can be quickly identified, so that could be significantly improved by the implementation of all print microinjector.To achieve the above objectives, according to the first especiallyi elements, which formed many of heating elements, vacuum pasteboard;
placing the membrane deposited on the glue with its separation from the plate with heating elements at a specified distance;
fixation of the membrane on the plate with the heating elements; and
bonding plate with heating elements and membranes to each other.It is advisable that the distance between the plate with the heating elements and the membrane on the operation of placing ranged from 4 to 6 microns.Preferably, the plate with the heating elements and the membrane was exposed to the operations of billing to match their Central points.It is desirable that the operation of the bonding plate with heating elements and membranes to each other contained operation initial heating plate with heating elements and membranes by radiation heating tool, and re-heating plate with heating elements and membranes in the furnace with high temperature and high pressure.It is possible that the radiation of the heating tool, represented infrared radiation.Added and the temperature from 200 to 280oC for 15-30 sec.Preferably, the operation of reheating the plate with heating elements and the membrane was performed at a temperature of from 150 to 400oC and a pressure of from 1 to 15 kg/cm2.It is desirable that the operation of reheating the plate with heating elements and the membrane was performed at a temperature of from 200 to 350oC and a pressure of from 2 to 10 kg/cm2.It is possible that the method contained operation education through holes for the ink in the plate with the heating elements and in the membrane after surgery bonding plate with heating elements and membranes to each other.It is advisable that the through holes of the ink is formed by using a gas laser, carbon dioxide (CO2-laser).To achieve the above objectives, according to further aspect of the invention, an apparatus for Assembly of microinjector containing:
vacuum mounting table fixing plate with heating elements using vacuum;
fixing the membrane ring, located above the vacuum mounting table and is designed to clamp the periphery of the membrane with regular davleniya to create a support for fixing the membrane ring;
the coordinate table for placing a membrane that is designed for fixing of the supporting holder for the clamping ring and to position the center of the membrane by means of its movement in either direction, according to the center of the membrane to the center of the plate with heating elements by placing the membrane on a plate with the heating elements; and
heating instrument is placed on a coordinate table for placing the membrane and is designed for the emission of infrared radiation acting on the membrane and on the plate with heating elements for heating and bonding of the membrane and plate with heating elements to each other.It is advisable to coordinate table for placing the membrane contained a penetrating hole for passing infrared radiation generated by the heating tool, through the membrane and the plate with the heating elements.To achieve the above objectives and other advantages of the present invention the membrane is not precipitated integrally on the jet element, and thus, it is made as a separate item. In this case, the membrane may be mounted on the heat when the process of installation of microinjector not yet completed. In the result, it is possible to prevent frequent displacement of the membrane in the process of placing or mounting in order to prevent damage that can occur on the membrane. In addition, since the membrane is mounted in a state in which it is separated from the inkjet element, the membrane is not inserted between the jet element and the heating element during the Assembly process. Thus, the membrane can be opened, so that the worker can easily identify any damage to the membrane, allowing you to quickly take action.In addition, in accordance with the present invention the membrane attach simultaneously to the multiple heating elements, forming a block of semiconductor wafers, instead of the bonding of the membrane to each heating element one by one. In this case, the membrane can be set relative to the set of heating elements simultaneously (once). In the result there is no need for setting the diaphragm relative to each heating element, and thus, the time required to complete the entire build process microinjector, is significantly reduced. Through the BRP to respond to the demands of mass production, who appeared for the last time.With this purpose in accordance with the present invention (semiconductor) wafer with heating elements, which formed lots of heating elements, rigidly fixed on the vacuum pasteboard. Then the membrane, which is made in the form of individual parts, put to shift it from the heating element at a specified distance, for example from 4 to 6 μm. After that, the membrane is fixed on the plate with the heating elements, and the plate with the heating elements and the membrane are glued to each other. Thus, the membrane is aligned with many heating elements and is mounted infections.Meanwhile, for the purposes of the present invention, in accordance with another aspect of the present invention developed an additional mounting device.This mounting device includes a vacuum mounting table fixing plate with heating elements in a vacuum environment, fixing the membrane ring, designed to clamp the periphery of the diaphragm on the vacuum pasteboard and fixation of the membrane on the plate with the heating element coordinate table for placing the membrane, designed for fixing the supporting holder retaining ring and for placing the membrane on a plate with the heating elements and the heating tool designed to create infrared radiation acting on the membrane and on the plate with heating elements for heating and bonding of the membrane and plate with heating elements to each other. The membrane can simultaneously attach to multiple heating elements thanks to the work mounting device described above.As described above, in accordance with the present invention the membrane is served in the Assembly process, regardless of the jet element, and many heating elements are attached to the membrane at the same time. As a result, the time required to build microinjector, is significantly reduced.The above objective and other advantages of the present invention will become more apparent when studying the detailed description of preferred embodiments of the present invention with reference to the accompanying drawings, where
Fig. 1 is a block diagram illustrating the method of Assembly of microinjector in accordance with this ISO is for microinjector in accordance with another aspect of the present invention;
Fig. 3 - cross microinjector shown in Fig. 2;
Fig. 4 is an image showing an implementation option furnace, high temperature and high pressure, in accordance with the method of Assembly according to the present invention;
Fig. 5 is an image showing an implementation option of microinjector collected in accordance with the present invention; and
Fig. 6 and 7 are views illustrating operation of microinjector depicted in Fig. 5.Hereinafter the present invention will be described in more detail with reference to the accompanying drawings showing preferred embodiments of the invention.Provided that all terms mentioned in the description, based on the operation of the present invention, and they can be changed in accordance with the intentions of the specialist in the art or with the usual practice, and the terms should be defined taking into account consideration of the total content of the description of the present invention.First, the device for assembling microinjector according to the present invention is implemented as follows.As shown in Fig. 2 and 3, in Assembly of the device is the th air holes 205 fixes the plate 100 with multiple heating elements 101. In this case, each vacuum air hole 205 is connected with a vacuum pump 208 to maintain a very good effort suction.Over vacuum mounting table 201 set secures the membrane ring 202. Fixing the membrane ring 202 is used for manipulation and clamping the periphery of the diaphragm 20 so that the membrane 20 can be fixed in a predetermined position at a specified distance from the plate 100 with the heating elements. In this case, the membrane 20 to be fixing with clamping the membrane ring 202, has the structure of a wide thin-film layer, so that it can completely cover plate 100 with heating elements.While fixing the membrane ring 202 rests on the supporting holder 204 for the locking ring, which, in turn, is inserted for a certain length under the lower surface of the membrane 20, the membrane 20 can be maintained at a specified distance from the plate 100 with the heating elements.At this time, the reference holder 204 retainer ring is fixed, passing through holes in the coordinate table 203 for placing the membrane. In addition, the coordinate table 203 for submitting member the direction. If the membrane 20 is put on plate 100 with heating elements, the coordinate table 203 for placing the membrane quickly moved in either direction by operation of the drive cylinder. Therefore, the movement of the coordinate table 203 for placing the membrane can be properly transferred to the membrane 20 by the supporting holder 204 retainer rings. In the result, the membrane 20 can be quickly displayed in the appropriate position relative to the plate 100 with the heating elements.Meanwhile, the heating tool 207, which is designed to generate infrared radiation, is mounted above the XY table 203 for placing the membrane. The heating tool 207 generates infrared radiation acting on the membrane 20 and the plate 100 with the heating elements in such a way that the membrane 20 can be firmly glued to the plate 100 with the heating elements. At this point, the adhesive 21 is deposited to a predetermined thickness, for example 1 μm, on the lower surface of the membrane 20. The adhesive 21 is melted under the action of infrared radiation emitted by the heating element 207, so that the membrane 20 can be more securely attached to plates which are additionally formed penetrating hole 206, through which the infrared radiation produced by heating tool 207 passes and reaches the membrane 20 and the plate 100 with the heating elements. Therefore, infrared radiation produced by heating tool 207, can quickly reach the membrane 20 and the plate 100 with the heating elements, while on his way there are no obstacles.Further detail will be described by way of the Assembly of membranes and plates with heating elements using the above-described mounting arrangement.As shown in Fig. 1, a work first moves the plate 100 with heating elements to the mounting device 200 via a transmission device (not shown), and at step S1 records transferred thus the plate 100 with heating elements for vacuum mounting table 201. In this case, as described above, many of the heating elements 101 are arranged in a certain order on the plate 100 with the heating elements. Vacuum mounting table 201 provides the suction of the lower surface of the plate 100 with heating elements using a vacuum pump 208 is connected to the vacuum air hole 205, so that the 201.In this membrane 20 is pressed fixing the membrane ring 202 and is held by the supporting holder 204 retainer rings. Thus, the membrane 20 is fixed in a position in which it is located at a specified distance from the plate 100 with heating elements, preferably at a distance of 4 to 6 μm. In this case, the membrane 20 has the structure of a wide layer of a thin film in order to provide the possibility of mounting it simultaneously to multiple heating elements 101 formed on the plate 100 with the heating elements.Preferably in accordance with the present invention for the installation process is applied membrane 20 and each heating element 101, in which some configurations, for example a through hole for ink, not educated. That is, in accordance with the present invention, the mounting is performed before formation of through holes for ink in the membrane 20 and each heating element 101.According to the present invention, the way in which the Assembly process is performed before formation of through holes for ink in the membrane 20 and each heating element 101, is used to track the th operation education through holes for ink can be performed simultaneously in the membrane 20 and the heating elements 101. In this case, eliminated any need of education through holes for ink separately in the membrane 20 and each of the heating elements 101, thereby allowing you to reduce the total time to complete the process.Then the coordinate table 203 for placing the membrane moves in all directions by operation of the drive cylinder in order to expose the membrane 20 in position relative to plate 100 with heating elements in step S2. In this case, preferably, the setting plate 100 with heating elements and membrane 20 should be made so that the center point of each of these objects are aligned properly.Thus, according to the present invention due to the fact that the membrane 20 at the same time glued to the set of heating elements 101, only the operation of combining the respective Central points of the plate 100 with the heating elements and the membrane 20 can quickly lead to the end of a complex process of billing.When the above process of billing is completed, the XY table 203 billing membrane stops p is 0 with heating elements in step S3. Accordingly, the membrane is fixed on the plate 100 with the heating elements without changing position, and thus it is ready for its connection integral with the plate 100 with the heating elements. In addition, between the membrane 20 and the plate 100 with heating elements introduced adhesive 21, which quickly melted in the process of gluing, which will be described below. Thus, the membrane 20 and the plate 100 with the heating elements can be more firmly bonded to each other.When the operation is executed in step S3 is completed, in step S4 is in the process of bonding the membrane to the plate 100 with the heating elements.On operation of the first bonding heating tool 207 emits radiation, preferably infrared radiation, in the direction of the membrane 20 and the plate 100 with heating elements placed on the vacuum mounting table 201, to thereby rapidly melt adhesive 21 is deposited on the lower surface of the membrane 20 in step S5. Thus, the membrane 20 can be firmly glued to the whole wafer 100 with heating elements due to the heating effect of the heating tool 207.
FIELD: jet printing.
SUBSTANCE: device 100 has three column matrices 61 of drop emitters, configured for multi-pass color printing with printing resolution, having a step of carrier axis points, which is less, than step of columnar nozzles of ink drop emitters. Jet printing head has resistors of high resistance heater and effective control circuits, which are configured to compensate alteration of parasite resistance, caused by power routes (86a, 86b, 86c, 86d).
EFFECT: compactness of jet printing head with large number of ink drop emitters.
20 cl, 11 dwg
FIELD: printing devices.
SUBSTANCE: cartridge comprises compact structure of electrical connections, which includes a number pairs of matrix-columns of electrical contact areas arranged over the back side of the cartridge and connected with the droplet generators.
EFFECT: enhanced reliability.
13 cl, 18 dwg
FIELD: typewriters, printing devices; drop precipitation components, drop precipitation plates with nozzles.
SUBSTANCE: the method for forming a component of plate contains operations: forming of the body using first material, where aforementioned body has periphery, forming of the cover using second material, around the aforementioned body, in such a way that the cover extends at least across a part of the periphery of aforementioned body, and forming of the nozzle, which passes through aforementioned body. The method for forming a plate, when the plate with nozzles is limited to the plane of plate with nozzles and contains a plate, which has at least one layer of plate with nozzles and a set of nozzles, where each nozzles passes through plastic placed within an aperture in the plate with nozzles, contains operations for forming a set of individual bodies of polymeric material, distributed across the plane of plate with nozzles, and forming of at least one metallic layer of plate with nozzles by galvanoplastic application around aforementioned bodies of polymeric material. The method for forming a component of the plate contains following operations: creation of a layer of first photo-resistive material on a substrate, selective development and removal of photo-resistive material on the substrate to form a mesh of separate bodies of first material on the substrate, creation of first metallic cover around aforementioned bodies to form metallic plate with nozzles, having apertures, each one of which contains a body of aforementioned first material, and creation of a nozzle, which passes through each body.
EFFECT: an improved method is suggested for manufacturing the component meant for usage in a device for drop precipitation.
3 cl, 12 dwg
FIELD: power engineering.
SUBSTANCE: device comprises housing structure that defines the central plane, a number of passages for discharging droplets that pass through the housing structure parallel to the central plane, nozzle for discharging droplets, means for generating sound wave within the passage, and collector that is extended throughout the housing structure parallel to the central plane and perpendicular to the passages. The passages passing through the central plane are shifted perpendicular to the central plane with respect to the adjacent passages. Each nozzle is in communication with the appropriate passage. The collector crosses the passage so that the reflection coefficient of the sound wave of the boundary between each passage and collector is the same for all passages. According to the second version, the device has first group of passages shifted with respect to the central plane in the first direction perpendicular to the central plane, second group of passages shifted with respect to the central plane in the second direction perpendicular to the central plane, and drives. According to the third version, the device has additional means for generation of sound wave and discharging droplet through the nozzle. The collector intersects each passage of the first group whose reflection coefficient differs from that of the second group of passages, first circuit for generating first exciting signal that excite the passages of the first group, and second exciting circuit for generating the second exciting signal that excites the passages of the second group. The first and second group of passages are excited alternatively.
EFFECT: improved design.
21 cl, 21 dwg
FIELD: production methods; jet printing.
SUBSTANCE: method of high speed creating of multicolor printings during steam processing is foreseen: providing as minimum two steam printings heads, working on high operational frequency, and the printing heads, working on high operational frequency, allow to process the ink with phase changing; providing as minimum two kinds of oil going trough them, and the passing of the base under the printing heads with the speed of 1000 foots per minute; where on the base is formed as minimum one illustration during the process of steam processing. The method of providing high speed, resistant to coloring and other surfaces under the touching of print during the process of material steam processing with using of inks with phase changing is overseen: the providing as minimum one set of printing heads, allowing to use ink with phase changing, with frequency 20kHz, the material providing; the providing of the system for transporting of the material, which allows to transportate the material under the printing heads; providing of great amount of inks with phase changing; transportation of material over the printing head sets with the speed 1000 foots/minute, ejection of ink as minimum from two printing heads to the material, for illustration forming. The method of providing high speed, resistant to coloring and other surfaces under the touching of print during the process of material steam processing with using of inks with phase changing is overseen: the providing as minimum one set of printing heads, allowing to use ink with phase changing, with frequency 20kHz, providing of porous material; providing of transportational system of material, which allows to transportate the material under the printing heads; providing of great amount of inks with phase changing; transportation of material over the printing head sets with the speed 1000 foots/minute, ejection of ink as minimum from two printing heads to the material, for illustration forming; on the stage of ejecting of inks its formed the illustration, which has up to 200 points/printing head/ liner inch.
EFFECT: under the decreasing of the costs it is decreasing the amount of trash and increased the efficiency.
33 cl, 1 dwg
FIELD: technological processes, typography.
SUBSTANCE: method for making components for jet printing head consists of the following stages: making case, with upper surface, making several apertures in the indicated upper surface, passing into the case, and an actuating structure inside each of the apertures. Each actuating structure remains fixed to the body frame during operation. The actuating component for the jet printer with formation of drops under request, has a case with an upper surface, an aperture in the upper surface, passing into the case along the axis of the aperture, a convex actuating structure inside the aperture, and electrodes, which are positioned such that, they can apply a field to the actuating structure in such a way that, the actuating structure is deformed. Electrical voltages applied to the walls do not give rise to deviation of the walls and emission of drops through the nozzle.
EFFECT: fast propulsion, without loss of accuracy and piezoelectric material settles uniformly, actuating mechanisms have same channel separation along matrix.
36 cl, 69 dwg
SUBSTANCE: invention related to flowing media ejection device and to the device control electrical chain. Half-conductor system contains an undercoat, which has first surface, first insulation material, located on at least the first surface segment, and first insulation material contains many holes, which forms a route to the first surface, a first conducting material, located on the first insulation material, in a way that many holes basically are free of the first conduction material, a second insulation material, located on the first conduction material and partly on the first insulation material, in a way that many holes basically are free of the second insulation material, and second conduction material, located on the second insulation material and inside of the many holes, in a way that some part of the second conduction material, located on the second insulation material, has electrical contact with the undercoat.
EFFECT: invention has higher technical requirements at manufacturing cost decrease.
60 cl, 9 dwg
FIELD: printing industry.
SUBSTANCE: head for jet printing device comprises base, having inlet channel for ink, ejection outlet hole to eject ink supplied through inlet channel, flow area, which provides for fluid medium communication between inlet channel and ejection outlet hole. Additionally flow area includes the first flow formed near base and the second flow formed along the first flow at side opposite to base relative to the first flow. Width of the first flow differs from width of the second flow in plane of section perpendicular to direction of ink flow. Besides, between the first flow and the second flow there is a stepped section.
EFFECT: invention provides for structural design of head, in which channels are suitable in resistance to flow of ink, have satisfactory thickness of side walls, making it possible for neighbouring channels to eject various amounts of ink.
7 cl, 19 dwg
SUBSTANCE: reference element is formed of a material which contains a mixture of first resin and second resin, which structural formula is different from the first resin, and is moulded between the feeding element and the substrate of the ejecting element, so that is an integral part of the feeding element.
EFFECT: head for ejecting fluid and method of its manufacture provide the ability to compound the reference element and an element for supplying ink with high impermeability and low probability of delamination, ie with high affinity to each other.
19 cl, 17 dwg, 2 tbl
FIELD: process engineering.
SUBSTANCE: ink-jet printer ink ejection head has power supply conductor, hear conductor and excitation circuit conductor arranged to the left of ink feed port. Said conductors may be arranged using a portion of jumper located to separate feed ports. Besides, multiple feed ports are configured to feed ink and pressure chambers and separated by means of jumpers. Thus, ejection opening may be located on both sides of said feed ports. Conductor connected heater with poser supply conductor or excitation circuit is also located in jumper portion making a separation baffle for feed ports.
EFFECT: dense configuration of pressure chambers and ejection openings, optimum sizes of heaters.
12 cl, 49 dwg
SUBSTANCE: manufacturing method of head substrate for fluid ejection represents provision of silicon substrate containing on its surface layer of etching mask, which has opening, the formation of the first deepening in surface of the silicon substrate by means of anisotropic etching, the formation of the second deepening containing opening in the surface of the first deepening, thereby opening goes in the direction of the other surface of the silicon substrate, being inverse surface to the surface of a silicon substrate and the formation of the inlet channel by anisotropic etching of silicon substrate from surface having the second deepening. Fluid ejection head contains silicon substrate having element of energy generation on its surface that is configured with possibility to generate energy for liquid ejection and the inlet channel for liquid supply to the element of energy generation.
EFFECT: invention provides stable manufacturing of substrate for fluid ejection heads with form accuracy and high efficiency of technological process.
7 cl, 17 dwg
FIELD: technological processes.
SUBSTANCE: invention is related to head that ejects liquid, which carries out printing by means of drops ejection onto carrier, device that ejects liquid and method of liquid ejection. Liquid-ejecting head, in which liquid is ejected from ejection channel due to application of energy to liquid, besides ejection channel comprises one ledge having convex shape and arranged inside ejection channel, the first area for maintenance of liquid surface, which must be related to liquid in the form of column stretched outside from ejection channel, when liquid is ejected from it, and, in condition when the first area is created, the second area, to which liquid must be sucked in ejection channel in direction opposite to direction of liquid ejection, and which has hydraulic resistance that is lower than hydraulic resistance of the first area, at the same time the first area is created in direction, in which ledge shape convexity is inverted from distal end of ledge, and the second area is created on both sides from ledge.
EFFECT: possibility to arrange moment of ejected liquid separation as occurring earlier and to reduce tail of flying drop of liquid.
19 cl, 37 dwg
FIELD: printing industry.
SUBSTANCE: in method for arrangement of slot for supply of ink into semiconducting substrate for jet printing head, the first structural element is formed by means of multiple application of electric energy discharge to the first side of semiconducting substrate or by means of abrasive material application on the first side of semiconducting substrate, vibration is imparted to tool opposite to the first side, besides tool vibrates with a certain frequency and at a certain distance from the first side for formation of the first structural element, material of semiconducting substrate is removed from the second side for formation of the second structural element, besides at least part of the first and second structural elements crosses for formation of slot for ink feed, which passes through semiconducting substrate, and for removal method is used, which has been selected from group, including wet etching, dry etching, laser treatment, sand drilling, treatment with abrasive jet, rotary-vibration drilling, cutting with saws and mechanical treatment in machines.
EFFECT: fast formation of slot for ink feed in semiconducting substrate for jet printing head with low costs.
19 cl, 14 dwg
FIELD: printing industry.
SUBSTANCE: invention relates to method for liquid ejection to eject liquid from ejection channel by application of energy to liquid. Method includes the following stages: liquid is put in motion along ejection channel, which comprises, in cross section, relative to direction of ejection, two ledges inside the channel, then liquid surface that is arranged on both sides of two ledges and in area between two ledges in channel in direction opposite to direction of liquid ejection is pulled so that liquid arranged in specified area is joined to liquid in the form of column and is in contact with distal ends of two ledges, and them liquid in the form of column is separated from liquid arranged in specified area to eject liquid from ejection channel, so that liquid arranged in specified area is in contact with distal ends of two ledges.
EFFECT: invention makes it possible to reduce formation of satellites (secondary drops) and to accordingly improve quality of printing.
6 cl, 37 dwg
FIELD: printing industry.
SUBSTANCE: method to make a silicon substrate for a liquid-ejecting head, having the first surface, opposite to the second surface, includes the following stages: provision of a layer on the second surface of the silicon substrate, besides, this layer has a lower etching speed compared to silicon, when exposed to the silicon etchant; partial removal of the layer to open a part of the second surface of the silicon substrate, besides, this opened part surrounds at least one part of the layer; and moist etching of the specified layer and opened part of the second surface of the silicon substrate with application of the silicon etchant, in order to form a channel of liquid supply, stretching from the second surface to the first surface of the silicon substrate.
EFFECT: simplified formation of ink supply channel and reduced time of substrate making.
12 cl, 22 dwg
FIELD: process engineering.
SUBSTANCE: method of producing said head including silicon substrate and inlet channel comprises: producing silicon substrate including isolating layers on first surface and mask layers with etching holes substrate other surface. Note here that said insulating layer is located in section extending from position opposite section between adjacent mask layer holes, and producing holes by etching section of silicon substrate so that etched section extends to insulated layer section opposite aforesaid hole. Silicon substrate located between adjacent holes is subjected to etching so that secintion on its first surface may be thinner than that on its second surface.
EFFECT: higher hardness of thus produced head and higher efficiency.
5 cl, 35 dwg