Fee nozzle for an inkjet printer
(57) Abstract:Fee nozzle is designed to spray liquid. Fee nozzle for an inkjet printer having a nozzle aperture, which includes many elements positioned across the aperture and thus podrazdelami aperture into many smaller apertures, these elements are obtained by the deposition of the foam structure in or near the aperture of the nozzle or the elements are in the form of filaments perpendicular to the main axis of the aperture, and said aperture comprises an elongated slot. These characteristics prevent possible fluid flowing away. 1 C.p. f-crystals, 5 Il. The present invention relates to the Board of nozzles for ink-jet printer having a nozzle aperture through which napylyaetsya ink.From hydrodynamics and technology of inkjet printers, it is known that if the liquid contained within the container, and this container has a hole below the surface of the liquid, the liquid will not necessarily flow from the container depending on the parameters of the liquid and holes. The parameters that determine whether to flow the liquid from the container or not, are: the size of the hole, powernote liquid above the hole and the force of gravity. In systems inkjet printers, such as the so-called "BubbleJet" use additional means to control the pressure that the fluid creates a hole, usually in the form of patterns of foam with open pores. The surface tension of the liquid acting on the capillary foam on the border of the liquid/air on the outer surface of the foam, can produce back pressure, which is able to balance the weight of the liquid in the foam.There may be times when it is useful to have a large hole or crack in an inkjet printer, but where it is impossible to use the device for the deposition of the foam to produce back pressure.From the patent EP N 0426473 A2, publ. 08.05.1991 known charge nozzle for an inkjet printer having a nozzle aperture, which includes many elements positioned across the aperture and thus podrazdelami aperture into many smaller apertures.However, the known charge does not provide sufficient surface tension to prevent possible fluid flowing away under the action of gravity.The technical task of the present invention is to provide a card nozzle inkjet printer, running on liquid near to the place of ejection, improving the flow of liquid to the ejection seat and the flow of charged particles to the place of ejection.This technical problem is solved due to the fact that the Board of a nozzle for an inkjet printer having a nozzle aperture, which includes many elements positioned across the aperture and thus podrazdelami aperture into many smaller apertures, according to the invention mentioned elements obtained by the deposition of the foam structure in or near the aperture of the nozzle or the elements are in the form of filaments perpendicular to the main axis of the aperture.These aperture may include an elongated slit.Hereinafter the invention will be explained on the example Board of the nozzle with reference to the drawings, in which:
Fig. 1 represents a section of an inkjet printhead,
Fig. 2 is a view closeup of the aperture card nozzle
Fig. 3 and 4 represent sections through alternative embodiments of the, and
Fig. 5 is a partial perspective view of part of the continuation of the printhead containing the ejection device according to the present invention.The figures illustrate the printers of the type generally disclosed in the description of the above-mentioned patent.Between each of the electrodes 7 are nylon thread 9, which subdivide the gap 8 between the two components 5, 6 boards nozzle segments, corresponding to each of the electrodes 7.In Fig. 2 shows, as under the action of surface tension of liquid formed many meniscus of the liquid, which is sprayed ink, as described in the above descriptions to patents.In the example shown in Fig. 3 and 4, there is a gap 8, which is partially subdivided by walls 10, which are held across the side of the crack. Fig. 4 illustrates the internal structure of the foam 11, shown in General in Fig. 3. Between each pair of walls - electrode 7 and the space between the free edges of the walls 10 and the other side of the slit 8 has a foam Basotect 11. Foam 11 prevents leakage and creates a lot of elements 12, which together with the walls, divide the slit into multiple apertures 13. F. the same to the surface of the cut they are.In a modification of this design, the foam could be replaced by separate elements of this type, for example, as shown in Fig. 2.Another example is illustrated in Fig. 5. Fig. 5 illustrates a portion of the print head 1 spray-type, consisting of a body 2 of a dielectric material, such as synthetic plastic or ceramics. The number of grooves 3 are held on the housing 2, leaving gaps on the plate 4 sites. Grooves 3, each has an input and an output hole for ink (not shown, but indicated by the arrows 1 and 0) that are located on opposite ends of the grooves 3 so that liquid ink bearing material, which must be ejection (as described in our earlier applications), could take place within the grooves and depleted liquid to come out.Each pair of adjacent grooves 3 forms the cell 5, plate pad or separator 4 between the pairs of grooves 3, forming a seat ejection of material and having ejection electrode 6, 6'. The drawing shows two cells 5, left cell 5 with ejection electrode 6, which has a generally triangular shape and right cell 5 with a shortened ejection electrode. Each of the cells 5 are separated by the separator 7 cells, the image is about, to ensure that the surface 8, which allows ejection electrodes extend to the outside of the cell beyond thus, as defined by the rounded surfaces 8. Shortened ejection electrode 6' is used in the target cell 5 in order to reduce the impact from changes in electric fields, which in turn are the result of changes in the voltages applied to the ejection electrodes 9 made as a metallized surface on the front sides of plastino-similar sites 4 face-to-ejection electrode 6, 6' (i.e., the internal sides of each separator cell). Ejection electrodes 9 are at the side surface of the pads 4 and the bottom surface of the grooves 3. The exact size of the ejection electrodes 9 will depend on the specific design and purpose of the printer.Fig.5 illustrates two alternative forms for the side cover of the printer, the first of which is simple with straight edges of the cover 11, which closes the side grooves 3 in a straight line, as shown in the upper part of the figure. The second type of cover 12 is shown in the lower part of the figure, where the cover still covers the grooves 3, but has a series of boundary holes 13 passing along the grooves. Design krysta when using, and cover any shape can be used to create a surface on which the ejection electrode and/or the secondary or additional electrodes may be formed to improve the process of ejection. In addition, the fingers 15 boundary between holes 13 serve to reduce the overall size of the aperture between the opposing lids 11, 12, thus acting in accordance with the invention to divide the aperture into smaller aperture.In all the examples mentioned above, the division of the primary aperture into many smaller allows you to use a large primary aperture (without the risk of leakage), which in turn allows you to increase the migration of material inside the liquid ejection device. 1. Fee nozzle for an inkjet printer having a nozzle aperture, which includes many elements positioned across the aperture and thus podrazdelami aperture into many smaller apertures, characterized in that the said elements obtained by the deposition of the foam structure in or near the aperture of the nozzle or the elements are in the form of filaments perpendicular to the main axis of the aperture.2. Fee under item 1, characterized in, th is
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