Microinjector

 

(57) Abstract:

The invention is intended for feeding the working fluid in the chamber to heat. In accordance with the embodiment of the present invention in microinjector formed two main channels for feeding the working fluid into the chamber to heat. Even if one of the channels there is an obstacle because of the dust or particles or due to a defective etching, it is possible to supply the working fluid in the chamber for heating, because the flow of the operating fluid can be carried out through another channel which is connected with one (first) channel. In addition, in the embodiment of the present invention to increase the hydraulic resistance of the working fluid can be formed in the auxiliary channel, intended for the supply of the working fluid in the chamber to heat and having a curvilinear shape, or multiple protrusions may be formed on the outer walls of the locking layers chambers for heating, limiting the auxiliary channel for supplying the working fluid in the chamber to heat. Therefore, it is possible to prevent outflow of the working fluid back that leads to a uniform operation of the membranes. 10 C.Ÿ channels for feeding the working fluid in microinjector, which prevents the supply of the working fluid and to prevent movement of the working fluid against the flow.

In General, microinjector may release liquid of different colors when using cartridges and has a low noise during operation. In addition, its advantage lies in the fact that the letter is clear (thin) and clear when you print them on paper using an inkjet printer. As a result there is a tendency of constant increase in the use of inkjet printers.

In an inkjet printer, characterized by the above-mentioned advantage, mounted printhead. Printhead performs spraying ink out after conversion of the ink from a liquid form air bubbles in accordance with electrical signals from a device external to the printer, thus is printing the letters on the paper.

In U.S. patent N 4490728, which is entitled "Thermal inkjet printer" ("Inkjet printer with a heated printing elements"), N 4809428, which is 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"), N 5140345, which is entitled is to define the head and the substrate, made this way"), N 5274400, which is entitled "Ink path geometry for high temperature operation of the micro injecting device" ("the Geometry of the trajectory of ink for high temperature operation microinjector"), and N 54220627, which is entitled "Micro injecting device" ("Microinjector"), specifically disclosed construction and operation of each microinjector in accordance with the prior art.

As a rule, in microinjector uses high temperature heat generated by the heating layer in order to spray ink onto the paper. Therefore, high temperature, which creates a heating layer, affects the ink contained in the ink chamber for, for a long time. Happen as a result of thermal conversion of ink, and this leads to a faster reduction in the life of the device containing the ink.

In the recent past to solve this problem was proposed a new method for smooth spraying ink from the chamber to the ink out by placing the plate-like membrane between the heating layer and Luggage for ink and dynamic deformation of the membrane under the pressure of the working fluid, for example liquid heptane.

In the event that such videopoem, what can prevent direct contact of the ink with a heating layer, the ink itself are negligible thermal transformation.

In the inkjet printhead according to the prior art, the working fluid that is pumped into the inlet channel of the printhead, flowing along the main channel for supplying the working fluid, which is limited to locking layers chamber for heating. After this, the working fluid branches off from the main channel for supplying the working fluid to flow along the auxiliary channel for supplying the working fluid. At the end of the working fluid fills the chamber for heating.

Main channel and auxiliary channel for supplying the working fluid is formed by etching barrier layer, and the chamber for heating is formed so that the barrier layer is subjected to etching.

However, in the case when the barrier layer is not treated sufficiently in order for each channel for supplying the working fluid does not have to face any obstacles from the barrier layer chamber for heating the working fluid, which is introduced into the input channel of the printhead, can not flow in the direction of the camera to heat. Consequently the each channel for supplying the working fluid enters the alien substance, such as dust and particles, and creates an obstacle to the working fluid, the working fluid can not flow in the direction of the camera for heating, as described above. In the chamber for heating is not filled with fluid.

In the case when in the chamber for heating does not receive sufficient amounts of working fluid due to the fact that the barrier layer creates obstacles in the path of movement of the working fluid, the membrane, which is driven by the application thereto of pressure fluid, respectively, is unable to perform its function. Therefore, the print head is generally unhealthy.

As described above, the working fluid that is supplied through the input channel of the printhead, fills the chamber to heat through all the channels for the working fluid. At the moment when the pressure in the chamber to heat increases due to the heating layer, the working fluid introduced into the chamber to heat, moves back under pressure and flows through the auxiliary channel in the opposite direction, which leads to enter it in the other chamber for heating adjacent to the specified one.

In the above case there is excess supply of labor recogidas in the opposite direction, there is a lack of the working fluid. Therefore, in the chamber for heating, in which the working fluid is filed in an excessive amount, creates a pressure in excess of the desired pressure of the working fluid while in the chamber for heating, in which the lack of the working fluid due to its outflow in the opposite direction, creating pressure below the desired pressure of the working fluid.

Therefore, membranes, which are transformed by the application thereto of pressure from the working fluid may not operate uniformly in the corresponding chamber for heating.

As described above, this leads to the fact that the amount of ink, which in the end will be dispersed from the corresponding openings (nozzles), is not permanent (regular), causing a marked deterioration in print quality.

Known microinjector with the layout of the channels for supplying the working fluid into the chamber to heat containing substrate with attached protective film, the heating layers on the upper surface of the protective film is removed at a specified distance from each other, and designed to generate heat, the layer Ales heating layer, and designed to supply an electrical signal to the heating layer, barrier layer chambers for heating, located on the electrode layer and intended to form chambers for heating and the heating layer, the membrane is placed on the blocking layer of the chamber for heating with the possibility of fluctuations in the volume change of the working fluid fills each of the chambers for heating, the locking layer of chambers for fluid located on the membrane and designed together with the membrane to form chambers for liquid, coaxial with the chambers for heating, the nozzle plate having a number of holes, corresponding to the chambers for liquid, and located on the blocking layer of cells in the liquid, and the layout of the channels includes an inlet for introducing the working fluid, a first channel formed locking layers chambers for heating and is connected to the input and auxiliary channels, educated and branched with messages from the first channel, and respectively connected to the multiple chambers for heating, while the first and the additional channels are used to supply the working fluid in the chamber for heating (patent EP N 0816083).

However, this microinjector so bretania is intended to overcome the above problems, typical of the prior art. The first aim of the present invention to provide an ink-jet printhead, in which the working fluid is supplied into the chamber to heat even if there is an obstacle on the path of its movement.

The second objective of the present invention to provide an inkjet printhead, which ensured the supply of a sufficient amount of working fluid with the aim of smooth cast membranes in action.

The third objective of the present invention to provide an inkjet printhead, which prevents the outflow of the working fluid in the opposite direction.

The fourth purpose of the present invention to provide an inkjet printhead capable of preventing outflow of the working fluid in the reverse direction, so that proper operation of the membranes.

The fifth objective of the present invention is to develop a printhead capable of uniformly spraying ink through the holes (nozzles).

The sixth objective of the present invention is a significant improvement in print quality.

To implement the above objectives of the present invention is VA, containing substrate with attached protective film, the heating layers on the upper surface of the protective film is removed at a specified distance from each other and designed to generate heat, a layer of electrode located on the upper surface of the protective film a snug fit to each of the heating layers and designed to supply an electrical signal to the heating layer, barrier layer chambers for heating, located on the electrode layer and intended to form chambers for heating and the heating layer, the membrane is placed on the blocking layer of the chamber for heating with the possibility of fluctuations in the volume change of the working fluid filling each of the chambers for heating, the locking layer of chambers for fluid located on the membrane and designed together with the membrane to form chambers for liquid, coaxial with the chambers for heating, the nozzle plate having a number of holes, corresponding to the chambers for liquid and located on the blocking layer of cells in the liquid, and the layout of the channels includes an inlet for introducing the working fluid, a first channel formed locking slamstu messages with the first channel and respectively connected to the multiple chambers for heating, while the first and the additional channels are used to supply the working fluid in the chamber to heat, which according to the invention has a second channel separated from the first locking channel layer chambers for heating and is connected to the input and channels connecting the first channel with the second channel with the first mentioned and associates it with the second channels are used to supply the working fluid in the chamber to heat.

Preferably, the first channel and the second channel have the same width.

It is advisable that the width of the additional channels was less than the width of the first channel and the second channel.

It is desirable that additional channels were made curved to increase the hydraulic resistance of the working fluid.

It is useful to have additional channels had S-shaped in the plane.

It is possible that additional channels had L-shaped in the plane.

Preferably, microinjector contained numerous protrusions to increase the hydraulic resistance of the working fluid formed on the outer wall of the barrier layer chambers for heating defining additional channel.

It is possible that the tabs had a semi-circular shape in plane.

It is useful that the tabs was rectangular in shape in the plane.

In other words, to implement the above objectives of the present invention proposed printhead having two main channels for the working fluid which is communicated with the input channel of the printhead designed for injecting the working fluid, and one of the main channels for supplying the working fluid forks to create multiple auxiliary channels for feeding the working fluid, which are connected with the chambers for heating.

In this case, the main channels for supplying the working fluid communicated with each other through a set of connecting channels.

Even if one of the two main channels for supplying the working fluid chamber for heating will occur obstacle because of the dust or particles or due to a defective etching, the working fluid can flow through another channel, soobshayem with the first channel for supplying the working fluid in the chamber to heat.

Preferably the auxiliary channel for supplying the working fluid in the chamber for heating has curved the case of the working fluid, which fills the chamber for heating, is in close contact with the locking layers, limiting the auxiliary channel for supplying the working fluid in the chamber to heat, so that it was no outflow back in the direction of the next cell to heat.

More preferably, if the outer walls of the barrier layer chamber for fluid, which limits the auxiliary channel for the fluid in the chamber to heat, will be formed by the multiple protrusions increase the hydraulic resistance of the working fluid. And in this case the working fluid, which fills the chamber for heating, is in close contact with the protrusions, so that no drain back towards the neighbouring cells to heat.

Therefore, using the present invention it is possible to improve the print quality in General.

The above objectives and other advantages of the present invention will become more apparent when studying the detailed description of the preferred alternative implementation of the present invention with reference to the accompanying drawings, in which:

- Fig. 1 is a view in isometric layout of the channels of the inkjet printhead to supply rabigh. 2 is a view in isometric layout of the channels of the inkjet print head for feeding the working fluid in the chamber for heating according to the second variant of implementation of the present invention;

- Fig. 3 is a view in isometric layout of the channels of the inkjet print head for feeding the working fluid in the chamber for heating according to the third variant of implementation of the present invention;

- Fig. 4 is a view in isometric layout of the channels of the inkjet print head for feeding the working fluid in the chamber for heating according to the fourth variant of implementation of the present invention;

- Fig. 5 is a view in isometric layout of the channels of the inkjet print head for feeding the working fluid into the chamber for heating according to the fifth variant of implementation of the present invention;

- Fig. 6 is an illustrative view of an inkjet printhead that incorporates the layout of the channels according to the present invention for feeding the working fluid in the chamber to heat, and this view shows the first operating state of the inkjet printhead; and

- Fig. 7 is an illustrative view of an inkjet printhead that incorporates the layout of the channels really isoba inkjet printhead.

Further detail will be described arrangement of the channels of the inkjet printhead according to a preferred variant implementation of the present invention with reference to the accompanying drawings.

As shown in Fig. 1, the inkjet printhead having a given arrangement of channels for supplying the working fluid chamber for heating according to the present invention, the protective film 2 made of SiO2located in such a way that it is adhesively coupled to the substrate 1 made of silicon. The heating layer 11 is placed in the specified location on the upper surface of the protective film 2, and it is supplied with electricity from an external power source (not shown) to heat the heating layer 11. At the regional area of the heating layer 11 is a layer of electrode (not shown) that provides electrical energy to the heating layer 11 from the power source. Electrical energy, which is supplied from the electrode layer of the heating layer 11, is converted into thermal energy with the formation of high temperature through the heating layer 11.

In addition, the camera 4 for heating limited is th 11. The heat that is generated by a heating layer 11, is passed into the chamber 4 for heating.

Camera 4 for heating is filled with working liquid, which is subjected to a pressure of steam. The working fluid evaporates quickly under the action of heat transferred from the heating layer 11. In addition, vapor pressure, which is created by the evaporation of the working fluid acts on the diaphragm 6 formed on the blocking layer 5.

Camera 9 for ink limited blocking layer 7 camera for ink and is formed over the membrane 6 so that it is coaxial with the chamber 4 for heating. Camera 9 to the ink filled in the specified amount of ink. On the other hand, the locking layer 7 camera for ink and the plate 8 of the nozzle through the perforation holes formed corresponding to the ink chambers 9, and these holes function as the nozzle 10 to release the ink out. These holes 10 that perform the function of nozzles formed in the blocking layer 7 camera for ink, which limits the camera 9 to the ink, and the nozzle plate 8 so that they are coaxial with the chambers 4 for heating and cameras 9 for ink.

In such an inkjet printhead, which is described to enter the bone in the chamber 4 for heating, moreover, these channels are limited blocking layer 5, and limiting the camera to heat, and are communicated with the inlet channel 100, intended for the introduction of the working fluid in the printhead. When the working fluid is supplied into the chamber 4 for heating, the first channel 30 and the second channel 20 for supplying the working fluid in the chamber 4 for heating, are used as the main feed line. Input channel 100 forms an impermeable (tight) connection with introducing tube device, which is located in the cartridge and is used to fill the working fluid, functioning as a feeder for transferring the working fluid supplied from the ink cartridge in the direction of the camera 4 to heat the ink-jet printhead.

The first channel 30 for feeding the working fluid in the chamber 4 for heating the branched into many third channels 40, designed to supply the working fluid, which is limited to a locking layer 5 cameras for heating. Third channels 40 respectively connect the first channels 30 with 4 cameras for heating corresponding to the first channel 30, so that the first channels 30, respectively, are communicated with each camera 4 for heating.

Therefore, the working fluid flowing VDI it in each of the chambers 4 for heating.

Third, the channels 40 are designed so that their width less than the width of the first channel 30 and the second channel 20, it is necessary to increase the flow rate of the working fluid.

On the other hand, the first channel 30 for feeding the working fluid in the chamber 4 for heating, separated using a barrier layer 5' chambers to heat from the second channel 20 for supplying the working fluid in the chamber 4 for heating. The locking layer 5' chambers to heat the formed fourth channels 50 so as to ensure communication between the first channel 30 and the second channel 20, as shown in Fig. 1-5. Fourth channels 50 are used as passages that connect the first channel 30 with the second channel 20.

The working fluid which is supplied through the inlet channel 100 of the ink cartridge can flow through the channels 50 of the first channel 30 in the second channel 20 or the second channel 20 in the first channel 30.

Even if the first channel 30 is partially obstructed by dust or particles or there is an obstruction caused by a defect etching, formed in the manufacturing process of the printhead, the working fluid that flows through the second channel 20, is moved through fourth channels 50 in the direction of the first channel 30, which, in their ofcamera 4 for heating.

When the particles 200 are constantly in zone A of the first channel 30 and thus create, for example, the obstacle in the path of movement of the working fluid flowing through the first channel 20, the working fluid that flows through the second channel 20, is moved through fourth channels 50 in the direction of the zone, remote at some distance from the areas A of the first channel 30, which, in turn branched into many third channels 40, each of which receives the working fluid. Therefore, the working fluid is smoothly fed into each of the chambers 4 for heating.

As for the print head according to the prior art, the penetration of particles in the channel for supplying the working fluid in the chamber for heating or in the presence of a defect arising in the process of etching a channel in the path of movement of the working fluid are formed obstacles, and thus the working fluid cannot move to the chambers for heating, which leads to the impossibility of filling chambers for heating. Thus, the membrane can not work normally.

However, in the printhead according to the present invention, even when the first channel 30 is partially obstructed due to the presence of dust or particles or due to a defective etching, ka is 20 in the direction of the camera 4 for heating. Consequently, it is possible to ensure smooth running of the membranes. As a result, it helps to visibly improve the overall quality print.

Preferably, the first and second channels 30 and 20 were formed with the same width. As the second channel 20 for supplying the working fluid in the chamber to heat, and the first channel 30 is effectively used as the main thoroughfares.

As shown in Fig. 2, in accordance with the present invention the third channel 41 for feeding the working fluid in the chamber for heating has a curved shape in order to increase the hydraulic resistance of the working fluid.

Because the working fluid is in close contact with a sealing layer 5 cells to heat, so that, in General, to increase the hydraulic resistance, not in the outflow of the working fluid back towards the neighbouring cells to heat, when it should be introduced into the chamber 4 for heating.

Each camera 4 for heating, which is connected to the third channel 41 can hold (contain) a specified quantity of the working fluid without drain in the opposite direction.

In the printhead according to the present invention, the heating layer heats the working liquid which leads to the outflow of the working fluid back in the opposite direction to the adjacent chambers for heating. Therefore, uneven flow of the working fluid in the chamber to heat. In the membranes operate properly. This can lead to poor print quality.

However, as described above, because the third channels 41 for feeding the working fluid in the chamber for heating is made with a curved shape to increase the hydraulic resistance of the working fluid creates the possibility that the barrier layer 5 cameras for heating will have a large surface for coming into contact with the working fluid. Therefore, the third channels prevent was easy outflow of the working fluid introduced into the chamber 4 for heating, back in the direction of the neighbouring cells to heat. Accordingly, the camera 4 for heating always contain a specified amount of working fluid. This causes the membrane to work accurately, resulting in improved print quality.

Preferably, if a third channels 41 are S-shaped in the plane. In this case, since the barrier layer 5 cameras for heating has a surface with a fillet, to create a small friction of the working fluid relative to the surface of the barrier layer 5 cells to heat, and that p on the other hand, third channels 41 may be L-shaped in the plane.

In this case, the barrier layer chambers for heating has a wall with corners. This allows you to get the maximum hydraulic resistance of the working fluid relative to the wall of the barrier layer of cells to heat, and this permits the effective prevention of the outflow of the back of the working fluid contained in the chamber to heat.

You can selectively apply an S-shaped or L-shaped channel in the printhead in accordance with the conditions of the manufacture of the printhead.

As described above, in any case, use an S-shaped or L-shaped third channel in the printhead, the third channels 41 for feeding the working fluid in the chamber to heat communicated with the first channel 30 and the second channel 20, which are used for feeding the working fluid in the chamber to heat. Even if one of these channels there is an obstacle, the working fluid can move through other channels. Therefore, the working fluid fills the chamber to heat, causing accurate (proper) membranes. The result is the possibility of considerable improvement tacheometry on the outer wall of the barrier layer of cells to heat formed many tabs 42 to increase the hydraulic resistance of the working fluid at the same time the protrusions 42 restrict third channels 41 for feeding the working fluid in the chamber to heat.

Because the working fluid is in contact with the protrusions 42 so that the total hydraulic resistance of the working fluid increases, it can't happen outflow of the working fluid back to the adjacent chambers for heating, even if the pressure in the chambers for heating increases after the introduction of the working fluid in each of the chambers for heating. Each camera 4 for heating, which is connected with the third channel 41 can hold the specified number of working fluid without drain back. This causes the membrane 6 to work accurately, resulting in improved print quality.

Preferably, if the projections 42 have a semicircular shape in the plane. The working fluid may not be exposed to friction protrusions 42 having a curved surface, thus providing a smooth flow of the working fluid in each of the chambers 4 for heating.

Preferably the protrusions 42 are formed opposite each other. Therefore, the protrusions 42 allows the maximum extent possible to prevent the outflow of the working fluid in the opposite direction.

In addition, preferred is to achieve the working fluid is extended. Therefore, the protrusions 42 may also want the maximum extent possible to prevent the outflow of the working fluid in the reverse direction, as in the case where the protrusions are made opposite to each other.

As shown in Fig. 5, the protrusions 42 may have a rectangular shape in plane. Since the protrusions 42, which differ from the projections with a semicircular shape, have four corners, they can effectively prevent the outflow of the back of the working fluid which fills each of the chambers 4 for heating.

The shape of the protrusions 42, such as a semicircular shape or a quadrangular shape, you can choose in accordance with the conditions of manufacture of the printhead.

In any case, as described above, the third channels 41 for feeding the working fluid in each of the chambers 4 for heating communicated with the first channel 30 and the second channel 20. Therefore, even if one of the two channels in the first channel 30 and the second channel 20 there is an obstacle, the working fluid can move through a different channel 30 or 20. Accordingly, the camera 4 for heating constantly (continuously) filled with working liquid. This leads to the smooth operation of the membrane 6. The result is the possibility of improving print quality.

Neither the I channel according to the present invention.

As shown in Fig. 6, first, when electric power is supplied to the layer of the electrode from the external power source is used to supply electrical energy to the heating layer 11, which is attached to the layer of the electrode. At the same time the heating layer 11 is instantaneously heated to a high temperature, component 500oC. In this state, the electrical energy is converted into thermal energy with a temperature of 500-550oC.

After this thermal energy is transferred into the chamber 4 for heating, connected to the heating layer 11, while the working fluid that fills the chamber 4 for heating, evaporates quickly under the action of thermal energy with the formation of the vapor pressure of a specified value.

The steam pressure is continuously passed in the direction of the membrane 6, which is located on the surface of the barrier layer 5, thereby the membrane 6 applies a force P of the blow-specified value.

In this case, the membrane 6 is rapidly expanding outwards, curving, as shown by the arrows. Therefore, the power P of the shock affects the ink 300, which fill the chamber 5 for ink, bounded by a membrane 6, so that the ink 300 are ready for injection.

In addition, since in accordance with the present invention by using the first and second channels 30 and 20 already possible to avoid stopping the flow of the working fluid, the chamber 4 for heating contains a specified quantity of the working fluid and thereby prevents the termination of the membrane.

In the position shown in Fig. 7, when the electric energy is not supplied to the heating layer 11 from the power source, the heating layer 11 is rapidly cooled, the steam pressure in the chamber 4 for heating is reduced. Then the camera 4 for heating is in a vacuum state. Due to this, the vacuum state, the membrane 6 is subjected to a force In the reaction corresponding to the force P of the blow, and this leads to compression of the membrane to return to its original position.

In this case, the membrane 6 is rapidly compressed by the force transmission In the reaction in the direction of the heating layer 11, as shown by the arrow. Therefore, the ink 300, which are in a state of readiness for injection due to the expansion of the membrane 6, deformity. Printing on paper is like drops of ink subjected to the injection of the printhead.

In accordance with the present invention, there are two main channels for feeding the working fluid in the chamber for heating the working fluid flows through these main channels. In the result, it is possible to prevent the shutdown of the membrane.

In addition, in accordance with the present invention is made of auxiliary channels curvilinear shapes or protrusions formed on the outer surface of the barrier layer that limits the auxiliary channels, in order to prevent the outflow of the working fluid back in the opposite direction. Thereby, it is possible to provide an accurate (proper) membrane. This can result in improved print quality.

Although the present invention has been shown and described specifically with reference to an inkjet printhead, it should be understood that microinjector according to the present invention can be applied in Micronase and device for fuel injection.

As described above, in the printhead for an inkjet printer with the layout of the channels according to the present invention is formed of Dublin obstacle because of the dust or particles or due to a defective etching, the working fluid can move through another channel which communicates with the specified channel so that you can prevent the stop of the working fluid.

In addition, the formed auxiliary channels having a curved shape and intended for feeding the working fluid in the chamber to heat, or on the outer surface of the barrier layer, which limits the subsidiary channels in the printhead, formed protrusions in order to significantly increase the hydraulic resistance of the working fluid. Auxiliary channels, which are made curved or have educated them protrusions prevent the outflow of the working fluid back towards the neighbouring cells to heat. The result can be ensured accurate working of the membrane.

Although the present invention was particularly shown and described with reference to a specific variant of its implementation, specialists in this field should understand that can be made various changes in form and details of construction according to the invention, without departing from the scope of the invention defined in the attached claims.

1. Microinjector having a circuit including the safety film the heating layers on the upper surface of the protective film is removed at a specified distance from each other and designed to generate heat, a layer of electrode located on the upper surface of the protective film a snug fit to each of the heating layers and designed to supply an electrical signal to the heating layer, barrier layer chambers for heating, located on the electrode layer and intended to form chambers for heating and the heating layer, the membrane is placed on the blocking layer of the chamber for heating with the possibility of fluctuations in the volume change of the working fluid fills each of the chambers for heating, locking a layer of chambers for fluid located on the membrane and designed together with the membrane to form chambers for liquid, coaxial with the chambers for heating, the nozzle plate having a number of holes, corresponding to the chambers for liquid and located on the blocking layer of cells in the liquid, and the layout of the channels includes an inlet for introducing the working fluid, a first channel formed locking layers chambers for heating and reported to the entrance, and dopolnitelnye with multiple chambers for heating, while the first and the additional channels are used to supply the working fluid in the chamber to heat, characterized in that it has a second channel separated from the first locking channel layer chambers for heating and is connected to the input and channels connecting the first channel with the second channel with the first mentioned and associates it with the second channels are used to supply the working fluid in the chamber to heat.

2. Microinjector under item 1, characterized in that the first channel and the second channel are of the same width.

3. Microinjector under item 1, characterized in that the width of the additional channels is less than the width of the first channel and the second channel.

4. Microinjector under item 1, characterized in that the additional channels are curved to increase the hydraulic resistance of the working fluid.

5. Microinjector under item 4, characterized in that the additional channels are S-shaped in the plane.

6. Microinjector under item 4, characterized in that the additional channels are L-shaped in the plane.

7. Microinjector under item 1, characterized in that it contains many tabs to increase the hydraulic resistance of the work has gidal.

8. Microinjector under item 7, characterized in that the protrusions are placed opposite each other.

9. Microinjector under item 7, characterized in that the protrusions are made interleaved relative to each other.

10. Microinjector under item 7, characterized in that the projections have a semi-circular shape in plane.

11. Microinjector under item 7, characterized in that the projections have a rectangular shape in plane.

 

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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

FIELD: machine-building.

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

FIELD: printing.

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

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