Ink container and printing device

FIELD: printing industry.

SUBSTANCE: invention refers to ink-jet printers, namely to ink container with possibility of detection of ink residue in container and to printing devices. Ink container includes part (5, 25, 35) containing ink (6) and optic detection device for detection of presence or absence of ink (6) in ink-containing part (5, 25, 35); at that, optic detection device includes: light-reflecting part (3) located so that light (12) which is emitted on the outside of ink-containing part (5, 25, 35) is transmitted through ink-containing part (5, 25, 35) when ink is available in ink-containing part (5, 25, 35), and emitted light (12) is reflected with light-reflecting part (3) when ink is not available in ink-containing part (5, 25, 35), and luminescent material (4) located so that luminescent material (4) is excited with light (17) which was reflected with light-reflecting part (3) when ink is not available in ink-containing part (5, 25, 35), and emits light (18) having wave length (λ2) which is different from wave length (λ1) of emitted light (12).

EFFECT: higher reliability and accuracy of control of residual ink in container with the use of optic ink detection method.

10 cl, 16 dwg

 

Background of invention

The technical field to which the invention relates.

The present invention relates to a reservoir for ink and the printer, which can detect the residual quantity of ink in the ink tank, and also to a method of detecting the residual quantity of ink.

Prior art

In General, as a source of ink supply for a variety of printing devices, including printers inkjet, adapted the ink tank (hereinafter referred to as a cartridge for ink). There are many known cartridges for ink, which is configured to detach from the respective printing devices.

When the ink in the cartridge ink is used, a problem may arise, namely, that the printing operation may be stopped halfway. To overcome this problem, proposed various mechanisms for detecting the residual amount of ink in the cartridge for ink, therefore you can refill the ink or replace ink cartridge for ink before the ink will be consumed, and/or between printing operations. There are several mechanisms proposed as detecting mechanisms for detecting the residual amount of ink in the ink cartridge for Example, there is a mechanism for detecting the residual amount of the ink by controlling the state of conduction between the electrodes provided in the cartridge for ink. Also has a mechanism for detecting the residual amount of ink by optical means, etc. As a means to detect the presence or absence of ink by the optical method is simple in configuration and does not require a large device, it is used in many cartridges for ink.

As a mechanism for detecting the residual amount of ink optically, for example, in Japanese laid patent application No. N-318321 (1995) proposed a mechanism that uses a prism. Detecting mechanism for the residual amount of ink, involving the use of prism-equipped light-emitting part and svetoprinimayuschego part on a printing device containing a cartridge for ink, and is equipped with the reflecting surface of the prism, which is made from a material transparent to light, such as polypropylene, or a cartridge for ink. When the ink cartridge for ink consumed, and the surface section of the reflective surface of the prism is changed, turning from the surface section propylene - ink in the boundary surface propylene - air, it causes a change otnositelnoj the refractive index, and the light from the light emitting part on the side of the printing device is subjected to total reflection at the reflecting surface of the prism and detected svetoprinimayuschego part on the side of the printing device. Thus, the presence or absence of ink in the cartridge ink is detected on the basis of such changes in reflective optical intensity.

In mechanism to detect the presence and absence of ink in the ink tank on the basis of such changes in reflective optical intensity occurs for the case when, in addition to the reflected light, svetoprinimayuschego part can reach the irregularly reflected light and scattered light formed by light coming from the light-emitting part. Irregularly reflected light and scattered light may not always be distinguishable from the reflected light coming from the prism, which may cause incorrect detection of the presence or absence of ink.

To overcome this problem, in Japanese laid patent application No. N10-323993 (1998) describes a method to more accurately detect the presence and absence of ink by providing a concave polyhedron in part to the basal plane of the prism and thereby reduce the reflected light in this part of the basal plane of the prism. Another way to more accurately detect when Ustia and absence of ink involves the application of polarizing plates in front of the light-emitting part and svetoprinimayuschego part, and means for changing the oscillating direction of light directly in front of the prism, and hence to reduce light, not reflected light which is reflected on the boundary surface between the prism and ink. However, the implementation of these methods there is a risk that the reflected light reaches svetoprinimayuschego parts can be reduced, thereby leading to a result, they are less resistant to errors.

In Japanese laid patent application No. 2006-159789 described method of detecting the residual amount of ink on the basis of the light emitted by the luminescent material. In particular, this ink contains a fluorescent material. This method can solve the problem of irregularly reflected light and scattered light generated by the light from the light emitting part, because the wavelength of light emitted from the light emitting part, and the wavelength of light received svetoprinimayuschego part, differ from each other. However, this method is associated with a limitation in that the ink you want to add a fluorescent material.

Summary of the invention

It is desirable to solve the above problems existing in the known techniques. That is, it is desirable to solve the problem of incorrect detection of the residual amount of ink, abuse is by irregularly reflected light and scattered light, formed by the light from the light emitting part, and hence the embodiment of the ink tank and a printing device which detects the residual quantity of ink in the ink containing part of the printing device optically with high accuracy. It is desirable to develop a system for the detection of the residual quantity of ink and a method of detecting the residual quantity of ink.

The present invention proposed a reservoir for ink, designed for printing device. The invention in its first aspect provides a reservoir for ink, is described in items 1-5 claims. The invention in the second aspect provides a printing device described in PP-8 claims. In accordance with a third aspect, a method for detecting ink in the ink tank described in PP and 10 claims.

In accordance with this invention an ink tank provided with a fluorescent material which is excited by the emitted light, which is radiated from the outside and which is reflected in the reflective part, becoming reflected light. Fluorescent material is irradiated by the reflected light and emits light of a wavelength different from the wavelength of emitted light. Due to this, there is a possibility to solve the problem the solution the CSO detection of the residual quantity of ink, due to irregularly reflected light and scattered light generated by the light from the light emitting part, and providing a reservoir for ink, which can detect the residual quantity of ink in the ink containing part of the optically with high accuracy.

In addition, in accordance with this invention, printing device equipped with a light emitting means for emitting light on svetoprinimayuschego of the reservoir for ink. Printing device is also equipped svetoprinimayuschego tool that can receive the light emitted by the luminescent material, and which is itself capable of receiving reflected light from the reflective part. Further, the wavelength of light emitted by the light reflecting means is provided which differs from the wavelength of the light received svetoprinimayuschego part. Due to this, there is a possibility to solve the problem of incorrect detection of the residual amount of ink, due to irregularly reflected light and scattered light generated by the light from the light emitting part, and to provide a printing device which is arranged to detect the residual amount of ink in the ink containing part of the optically with high accuracy.

Additional characteristics of this invention will become I the tion of the following description of possible embodiments (given with reference to the accompanying drawings).

Brief description of drawings

On figa presents a contour functional drawing of the detection of the residual amount of ink in accordance with the first embodiment;

on FIGU presents a drawing explaining the operation of detection of the residual quantity of ink according figa when it contains ink;

on figs presents a drawing explaining the operation of detection of the residual quantity of ink according figa, when ink no;

on figa presents a promising image block configuration printhead and cartridge;

on FIGU presents perspective representation illustrating the state in which both components are shown in figa, United;

figure 3 presents the block diagram of the control system of the printing device inkjet;

on figa presents a schematic drawing illustrating the carriage before the detection of the residual quantity of ink;

on FIGU presents a schematic drawing illustrating the carriage after the detection of the residual quantity of ink;

figure 5 presents a flowchart of the sequence of operations illustrating a printing process;

on figa presents a contour functional drawing of the detection of the residual amount of ink in accordance the second embodiment;

on FIGU presents contour perspective representation of the detection of the residual quantity of ink according figa;

on figs presents a drawing explaining the operation of detection of the residual quantity of ink according figa in the presence of ink;

on fig.6D presents a drawing explaining the operation of detection of the residual quantity of ink according figa in the absence of ink;

on figa presents a contour functional drawing of the detection of the residual amount of ink in accordance with the third embodiment;

on FIGU presents a drawing explaining the operation of detection of the residual quantity of ink according figa in the presence of ink; and

on figs presents a drawing explaining the operation of detection of the residual quantity of ink according figa in the absence of ink.

Description of embodiments

The first option exercise

Below, with reference to the accompanying drawings, will be explained first variant implementation of the invention.

On figa presents a contour functional drawing illustrating a reservoir 5 for the ink and the detector 10 for detecting the residual amount of ink in this embodiment. On FIGU presents a drawing explaining the operation device is istwa according figa in the presence of ink inside and figs presents a drawing explaining the operation in the absence of ink inside. The tank 5 to the ink made with the possibility of imprisonment inside the ink 6 and has on its bottom surface 3 of the optical prism 11, which changes the refraction of light depending on the presence or absence of ink, svetozarnuyu part 7 for shielding light from the outside and fluorescent material 4, which receives the light having the first wavelength and emits light having the second characteristic wavelength. In addition, the detector 10, in which the light source 1 and svetoprinimayuschego part 2 have been combined in a single part, made in the lower part (or even below it) of the tank 5 to the ink. The method of detecting the residual amount of ink using this detector 10 will be further explained below. On figa presents an example of the configuration of the block 405 printheads, which receives a portion of ink from a variety of reservoirs for ink (each corresponding to a different color ink) and carries out a printing operation. This drawing also shows a perspective representation of the carriage 415, which concluded this unit. Figure 2 presents a perspective representation illustrating the state in which both elements (the print head and the carriage, shown in figa, combined with each other.

Print their heads, corresponding to different colors of ink tanks for ink with block 405 printheads. For each printhead unit 405 printhead has an outlet 107 for ink which is connected to the ink supply channel in the bottom of each tank for ink, the first locking portion 155 on the front surface of the rear section of the block 405 printheads designed to lock reservoir for ink of the respective colors in the block 405 printhead, and an electrical contact (not shown) for transmitting signals on the rear face of the rear section of the block 405 printheads.

The carriage 415 moved on the shaft 417, equipped with a holding part, which form the design of the front section of the reservoir for ink. The front section of the ink tank is the area which is opposite the rear section, not in the locking part 155 block 405 printheads. For installation and mounting block 405 printhead includes a lever 419. To connect with electric contact part of the side of the print head is also provided as shown in FIGU - electric contact portion 418. In a given position on the carriage 415 are the second locking portion 156 corresponding to each node of the printhead/ink tank, soy is Intel 152, corresponding to each node of the printhead/ink tank, and a mounting portion 159, connected by wires with connectors 152. Printing device as a whole becomes ready to print due to the installation of the cartridge 5 with the corresponding ink on the corresponding block 405 printheads and equipment carriage block 415 405 printheads. In this state, the print head is capable of throwing out ink from the print head, when the carriage 415 moves across the surface of the carrier printed information (such as paper), and thus is printed on the print media information.

Configuration management system

Figure 3 presents the block diagram of the control system of the printing device inkjet described above. Circuit 300 performs control processing of the data and the operation of the printing device. In particular, the Central processing unit (CPU) 301 performs processing in accordance with the program stored in permanent memory (ROM) 303. When the CPU 301 performs processing as workspace uses random access memory (RAM) 302.

As conventionally shown in figure 3, block 405 printheads mounted on the carriage 415, equipped with print heads K, 105Y, 105M, and 105C, which made the centre of the throwing in of holes for black ink (K), yellow (Y), Magenta (M) and cyan (C) color. In addition, the holder block 405 printhead according to these print heads are installed with removable tanks 5K, 5Y, 5M and 5C for ink (corresponding to each color of ink). The unit 405 printheads and carriage 415 is connected to the circuit 300 control by means of an electrical connector 216, although the system of connection may also be wireless. The detector 10, which is used to determine the residual amount of ink tanks for ink, as mentioned above, is also connected to system 300 of the control.

On figa presents a schematic drawing illustrating the carriage 415 before the detection of the residual quantity of ink; figv presents a schematic drawing illustrating the carriage 415 after detection of the residual quantity of ink. When the user starts the printing process, the carriage 415 begins to move in the direction of α, denoted by the arrow on figa (i.e. to the left, as seen in the drawing). Then, when each tank 5 (5K, 5Y, 5M and 5C) for ink comes to the position detector 10, the detector 10 performs detection of the residual quantity of ink for each tank 5 for ink.

In this embodiment, light emitted from the light source 1 (see figa), which provided the detector 10, accepted svetoprinimayuschego part 2 after its wavelength changes luminescent material 4. That is, the detector 10 is arranged to detect through svetoprinimayuschego part 2 only the wavelength of light emitted by the luminescent material 4 (and not the wavelength of the light originally emitted by the light source), and therefore prevent incorrect detection (due to detection of light from the light source) of the residual quantity of ink. However, it is possible to use detectors that measure and the wavelength of the emitted light, and the wavelength of light emitted from the fluorescent material, and the quantity of light emitted from each wavelength can be compared to determine the relative value of the light output. The residual quantity of ink can be determined by comparing the relative quantities of outgoing light with each wavelength. This method will be described in detail below.

The luminescent material 4 is such a material as a luminescent material or a fluorescence material which emits light due to the optical excitation, and among them is desirable that at which the absorption wavelength and the wavelength of the luminescence differ from each other. As raw materials such luminescent materials can be listed derivatives kind of the ins, derivatives of perylene, pyrene derivatives, derivatives of fluorescein, etc, all of which have an absorption band and the emission band in the ultraviolet and visible regions of the spectrum. In addition, it is possible to use inorganic phosphors that emit in the infrared light and containing neodymium (Nd), ytterbium (Yb) or erbium (Er), each of which has an absorption band and the emission band in the visible and infrared spectral regions, and similar substances. In addition, you can use substances that emit in the infrared region of the spectrum and containing a complex of the polyester, a substance that emits in the infrared region of the spectrum and containing phthalocyanine, or similar substances. You can also use other substances, but in the scope of claims of this invention.

You can use any light source 1, for which the emission band of the light overlaps with the absorption band of the fluorescent material 4, and suitable for this purpose are light-emitting diodes (LEDs)operating in the visible spectrum, and LEDs operating in the infrared region of the spectrum, etc. you Can use any light sources that differ from those specified, provided that it is not beyond the scope of claims of this invention.

The table shows the combination of fluorescent materials, light-emitting elements is svetoprinimayuschego elements, which can be used in this invention.

In this embodiment, the optical prism 11 for detecting the presence or absence of ink optically molded as a single unit with the tank 5 for ink and is provided at the bottom of the tank 5 to the ink. As shown in figv, when the ink 6 is present, the incident light 12 having the wavelength λ1 and coming from the source 1 of light is refracted on the surface 3 of the optical prism 11, becoming refracted light 13 having a wavelength λ1. Then, the refracted light 13 is reflected on the surface of the ink and becomes a reflected light 15, and the reflected light reaches 15 svetakudrya part 7; therefore, it does not reach the luminescent material 4. Although possible case, when the light 14 generated by scattering of the incident light 12 (and the light generated by reflection on the other surface of the partition), reaches svetoprinimayuschego part 2 directly, svetoprinimayuschego part 2 does not recognize the light 14 having the wavelength λ1, because it recognizes only the light that has wavelength λ2 and can radiate fluorescent material 4.

There is a probability that the light 16 having the wavelength λ1 and dissipated inside the optical prism 11 and on the surface 3 of section, t is the t to reach the luminescent material 4. If the light 16 reaches the fluorescent material 4 and excites the fluorescent material 4, this material will emit light having a wavelength λ2, and svetoprinimayuschego part 2 will recognize this light, which will cause incorrect detection. However, because the light 16 is very low light, the quantity of luminescent material 4, which is excited, a little. Even if the luminescent material 4 is excited and emits light having the wavelength λ2, it is possible to avoid incorrect detection, setting the threshold amount of light in svetoprinimayuschego part 2.

Therefore, when the ink 6 contained in the tank 5 to the ink, svetoprinimayuschego part 2 does not recognize the light, and the judgment that the ink 6 is missing, not made (i.e. the misconception does not occur).

As shown in figs, when the ink 6 is missing in the tank 5 to the ink, the incident light 12 having the wavelength λ1, is subjected to total reflection (total internal reflection) on the surface 3 of the section becomes totally internally reflected light 17 having the wavelength λ1, and irradiates the fluorescent material 4. The luminescent material 4 is excited totally reflected light 17 and 18 emits light having a wavelength λ2 different from the wavelength λ1. Because the light 18 emitted by a luminescent mother of the scrap 4, is emitted isotropically, he reaches svetoprinimayuschego part 2, and svetoprinimayuschego part 2 recognizes that the ink 6 is missing in the tank 5 to the ink. Therefore, when the ink 6 is not contained in the tank 5 to the ink, svetoprinimayuschego part 2 detects light, and the misconception arising from the judgement that in the tank 5 to the ink present in the ink does not occur.

Figure 5 presents a flowchart illustrating the printing process in accordance with this embodiment. In this process, first in step S401 is in the process of checking the residual amount of ink. During this process, the volume of print jobs to be printed, find on the basis of its print data and verify whether the ink tanks for a sufficient amount of ink for the print job, comparing the amount needed for printing, and the residual quantity in the tanks for the respective ink. During this process, as the residual amount of ink can be used, which is obtained by using the circuit 300 controls, measuring the residual quantity of ink at this point.

At step S402, the judgment about whether or not the amount of ink enough to print, decide on the basis of the above review process. When you have access to the exact amount of ink at step S403 carry out a printing operation, light is illuminated at step S404, indicating that the operating part is functioning (for example, green), and carry out the normal ending. On the other hand, if at step S402 make the judgment that a sufficient amount of ink is no indicator of the operating part indicates that, for example, a flickering orange color at steps S405 and S406 and step S407 perform an abnormal termination.

So, to recap, in a printing device provided by the light source 1, which is designed to emit light having a first wavelength, and svetoprinimayuschego part 2 intended to receive light having the second wavelength. Then, if the ink present in the reservoir 5 to the ink, svetakudrya part 7 prevents irradiation of the fluorescent material 4 by the light emitted from the light source 1 and received through the optical prism 11. Then configuration provides the irradiation of light having the first wavelength and emitted from the light source 1, the luminescent material 4, which is provided in the ink tank and emits light having the second wavelength, only when the ink 6 is missing in the tank 5 to the ink. Thus, the fluorescent material 4 emits light having the second wavelength, and svetoprinimayuschego part it takes the light, having the second wavelength, and therefore recognizes that the reservoir for ink no ink. Therefore the opportunity to provide a reservoir for ink and printing device that is capable of detecting the residual quantity of ink in the ink tank optically with high accuracy.

Although fluorescent material 4 in this embodiment is provided in the tank 5 to the ink, it may be located in the main body of the printing device and not in the tank 5 to the ink. However, it is assumed that the operating characteristic of the light radiation will deteriorate due to repeated sequence detection. It is therefore desirable to provide a fluorescent material exactly the reservoir 5 to the ink, while providing the possibility of easy replacement.

Printing device according to this invention may be tank 5 for the ink used in the above-mentioned detection of the residual quantity of ink, and actually borrows the above-mentioned detection of the residual quantity of ink.

The tank 5 to the ink cartridge for ink) can be produced through the following stages, which are:

form the space (storage space of ink)designed for the storage and ink 6 and the optical prism 11, which prednaznachendlya optical detection of the presence or absence of ink in the ink storage space;

attach the luminescent material 4 is excited by external light, the irradiation of which is performed outside of the tank 5 to the ink, and capable of emitting light in the tank 5 for ink;

form the storage space of the ink and the ink feed part to ensure that the message space of the ink storage space outside.

Consider the following way of attaching fluorescent material 4 to the container 5 for the ink. The storage space of the ink, the optical prism 11 and the section of luminescent material 4 is formed by using a two-color process forms using the first polymer not containing a fluorescent material 4, and a second polymer containing a luminescent material 4. In this case, there arises a problem that the polymer is first formed until then, until it forms the desired shape. The first polymer and the second polymer can be the same polymer or may be different polymers.

The part containing the fluorescent material 4, the reservoir 5 to the ink and the part not containing it, can be molded separately, and then you can attach both elements by melting by means of ultrasonic waves or heat and glued to each other with glue. The following steps describe how the introduction of the fluorescent material 4 in the part intended for the content l is minascentro material 4. First fluorescent material 4 is applied on the molded polymer. This polymer becomes containing fluorescent material 4. Using this polymer molded part, which should contain a fluorescent material 4, and a sheet containing a fluorescent material 4, glued to the molded polymer. A qualified technician will be able to represent any suitable for this method.

The second option exercise

Below, with reference to the accompanying drawings, explanation will be given of the second variant implementation of the invention. Since the fundamental configuration of this option is the same as the configuration of the first variant of implementation, will be explained only part of the configuration specific to this variant implementation. On figa-6D presents drawings of the detection of the residual quantity of ink according to this variant implementation. On figa presents a contour functional drawing of the detection of the residual quantity of ink, figv represented by its contour perspective image pigs presents a drawing explaining the operation in the presence of ink, and fig.6D presents a drawing explaining the operation in the absence of ink. Note that the same components as figa-1C are denoted by the same position is I.

In contrast to the first variant implementation, svetakudrya part 7 in this embodiment is not provided. In addition, the optical prism 26 to detect the presence or absence of ink by the optical method has the surface 3 of the section and the surface 8 of the partition, and the luminescent material 4 is provided between the surface 3 of the section and the surface 8 of the section. As shown in figs, when the ink 6 is present in the ink tank 25, the incident light 12 having the wavelength λ1 and coming from the source 1 of light is refracted on the surface 3 of the section becomes refracted light 13 having a wavelength λ1, and does not reach svetoprinimayuschego part 2.

Although possible case, when the light 14 formed by scattering of the incident light 12 and the light 15 formed by reflection mentioned light on the surface of the ink 6 (including light reflected at the other surface of the partition), reaches svetoprinimayuschego part 2, svetoprinimayuschego part 2 does not recognize these light rays due to the fact that they have a wavelength λ1. Moreover, although there is a probability that the light 16 having the wavelength λ1 and dissipated inside the prism 26 and on the surface 3 of the section will be able to reach the luminescent material 4, the excited portion of luminescent material 4 is small, because the aforementioned light is very weak. Therefore, mo is but to avoid wrong detection, due to the radiation of light, setting the threshold amount of light properly.

As shown in fig.6D, when the ink 6 is missing in the tank 25 to the ink, the incident light 12 is subjected to total reflection on the surface of the section 3 and becomes a reflected light 17 having the wavelength λ1, which irradiates the fluorescent material 4. When this happens, the luminescent material 4 is excited totally reflected light 17 and 18 emits light having a wavelength λ2 different from the length of the wavelength λ1. Light 18 emitted by the luminescent material 4, and the light 19 (including both light wavelength is λ1 and λ2), which was subjected to total reflection on the surface 8 of the section, reach svetoprinimayuschego part 2. Svetoprinimayuschego part 2 selectively detects light 18 (having the wavelength λ2) and the component of light 19 having the wavelength λ2, and recognizes that the ink 6 is missing in the tank 25 to the ink.

Thus, provided by the light source 1, which emits light having a first wavelength, and svetoprinimayuschego part 2 intended to receive light having the second wavelength. Then configuration provides the irradiation of light having the first wavelength and emitted from the light source 1, the luminescent material 4, which is provided in the ink tank and emits light having the second DL is well wave, only when the ink 6 is missing in the tank 25 to the ink. Due to this, the fluorescent material 4 emits light having the second wavelength, and svetoprinimayuschego part receives the light having the second wavelength. As a result, she recognizes that in the tank for ink no ink. Therefore the opportunity to realize a reservoir for ink and printing device that is capable of detecting the residual quantity of ink in the ink tank optically with high accuracy.

A third option exercise

Below, with reference to the accompanying drawings, explanation will be given of the third variant of implementation of the present invention. Since the fundamental configuration of this option is the same as the configuration of the first and second embodiments, will be explained only part of the configuration specific to this variant implementation.

On figa-7C presents drawings of the detection of the residual quantity of ink according to this variant implementation, figa presents a contour functional drawing of the detection of the residual quantity of ink, figv presents a drawing illustrating the operation thereof in the presence of ink, and figs presents a drawing explaining operation in the case otsutstvijem. Note that in these drawings, the same components as figa-6D, also on figa-1C are denoted by the same positions.

In the tank 35 to the ink according to this variant implementation of the surface 9 of the partition provided between the luminescent material 4 and an optical prism 33 for detecting the presence or absence of ink 6. As shown in figv, when the ink 6 is present in the tank 35 to the ink, the incident light 12 having the wavelength λ1 and coming from the source 1 of light is refracted on the surface 3 of the section becomes refracted light 13 having a wavelength λ1, and does not reach svetoprinimayuschego part 2.

Although possible case, when the light 14 formed by scattering of the incident light 12 and the light 15 formed by reflection mentioned light on the surface of the ink 6 (including light reflected at the other surface of the partition), reaches svetoprinimayuschego part 2, svetoprinimayuschego part 2 does not recognize these light rays due to the fact that they have a wavelength λ1. Moreover, there is a probability that the light 16 (having the wavelength λ1), the dissipated inside the prism 33 and the surface 3 of the section will be able to reach the luminescent material 4. However, this light is refracted or scattered by the surface 9 of the partition and hardly excites the fluorescent material 4. Even if the fluorescent material is 4 is excited and emits light, having the wavelength λ2, it is possible to avoid incorrect detection, setting the threshold amount of light in svetoprinimayuschego part 2 properly. Moreover, since the excited part of the luminescent material 4 is small, it becomes possible to make the threshold value smaller than the threshold values in the first and second versions of the implementation.

As shown in figs, when the ink 6 is missing in the tank 35 to the ink, the incident light 12 is subjected to total reflection on the surface of the section 3 and becomes a reflected light 17 having the wavelength λ1, which irradiates the fluorescent material 4. Because fully reflected light 17 becomes incident on the surface 9 of the section at right angles to it, he irradiates the fluorescent material 4 almost without scattering or refraction, since the boundary surface between the prism and the environment on the outside, has the ability to maintain a straight line of light. When this happens, the luminescent material 4 is excited totally reflected light 17 (having a wavelength λ1 and emits light 18 having a length of the wavelength λ2 different from the wavelength λ1. Light 18 emitted by the luminescent material 4, and a fully-reflected light 17 reach svetoprinimayuschego part 2. Svetoprinimayuschego part 2 selectively detects light 18 having the wavelength λ2,and recognizes that the ink 6 is missing in the tank 35 to the ink.

As described above, is provided by the light source 1, which emits light having a first wavelength, and svetoprinimayuschego part 2 intended to receive light having the second wavelength. Then configuration provides the irradiation of light having the first wavelength and emitted from the light source 1, the luminescent material 4, which is provided in the tank 35 to the ink and emits using optical prism 33, the light having the second wavelength, only when the ink 6 is missing in the tank 35 to the ink. In this configuration, the fluorescent material 4 emits light having the second wavelength, and svetoprinimayuschego part receives the light having the second wavelength, and therefore, it recognizes that in the tank for ink no ink. Thus, it becomes possible to realize an ink tank and a printing device that is capable of detecting the residual quantity of ink in the ink tank optically with high accuracy.

Although this invention is described with reference to possible embodiments of, it should be understood that the invention is not limited to the described possible ways of implementation. The volume of claims the following claims should be interpreted in the W the rock sense, as encompassing all such modifications and equivalent structures and functions, as they are within the scope of the claims of the claims.

1. A reservoir for ink, comprising: ink containing portion (5, 25, 35) to contain ink (6) and an optical detecting means for optically detecting the presence or absence of ink (6) in the ink containing part (5, 25, 35), and the optical detecting means includes: a reflective part (3)located so that the light (12), which is radiated outside of the ink containing part (5, 25, 35), is transmitted through the ink containing portion (5, 25, 35), when the ink present in the ink containing part (5, 25, 35), and the emitted light (12) is reflective part (3), when no ink in the ink containing part (5, 25, 35), and a fluorescent material (4)located so that the fluorescent material (4) is excited by light (17), which was reflected reflective part (3), when no ink in the ink containing part (5, 25, 35), and emits light (18)having a wavelength (λ2)that differs from the wavelength (λ1) of light (12).

2. The tank of claim 1, wherein the optical detecting means includes svetozarnuyu part (7), while the optical detecting means is located so that, when the ink present in the ink containing part (5, 25, 35), a fluorescent material (4) shielded St. thecranium part (7) from the light (15), different from light (17), which was reflected reflective part (3).

3. The tank according to claim 1 or 2, in which the reflective portion (3) formed on the boundary surface between the ink containing part (5, 25, 35) and prism (11, 26, 33) and is located with the option of refraction of light (12) in such a way that the emitted light (12) is not reflected in the fluorescent material (4), when the ink (6) present in the ink containing part(5, 25, 35).

4. The tank according to claim 3, in which the fluorescent material (4) is provided inside the prism(11, 26, 33).

5. The tank according to claim 3, in which the fluorescent material (4) is provided on the outside of the prism(11, 26, 33).

6. Printing device which has a capability to carry the ink tank according to any one of claims 1 to 5, containing the light emitting means (1) for emitting light with the first wavelength (λ1) at the reflective part (3) of the reservoir for ink, svetoprinimayuschego means (2) for receiving light (18)emitted from an ink tank, a detector (10) for detecting the received light (18) with the second wavelength (λ2)emitted by the fluorescent material (4) in the ink tank, and a determining means (300) for determining residual amount of ink in the ink tank based on the amount of light with the second wavelength (λ2)detected by the detector (10).

7. Printer condition the device according to claim 6, containing the caret (415) to install the ink tank together with the printhead (405) to eject the ink (6) from the reservoir for ink.

8. Printing device according to claim 6 or 7, containing processing means (301) for determining whether to perform printing based on the result obtained from the determining means (300).

9. The method of detecting the presence or absence of ink in the ink tank, comprising: a radiation light (12) with a first wavelength (λ1) of light source (1), the direction of the emitted light in the prism (11, 26, 33) in the ink tank, and the prism has a refractive index selected in such a way that if the prism has a surface section with ink (6), then the emitted light is refracted (13) through this interface, and if there is a boundary surface with air, the light emitted (12) undergoes total internal reflection (17) from this surface section, and the prism contains a fluorescent material (4)which emits light with a second wavelength (λ2), when the emitted light (12) with a first wavelength (λ1) is absorbed by the fluorescent material (4), the detection light (13, 17), emerging from the prism, and determining, on the basis of the above-mentioned outgoing light (13, 17), refracted (13) whether light, and whether ink (6) ink tank, the sludge is light underwent a complete internal reflection (17) from the fluorescent material (4), and no ink in the ink tank.

10. The method according to claim 9, further comprising displaying a notification indicating whether present or missing ink in the ink tank on the basis of the detection phase.



 

Same patents:

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

FIELD: printing industry.

SUBSTANCE: ink contains a liquid carrier, which includes water, an organic dissolvent and an organic amine, selected from 2-amino-2-methyl-1-propanol, 2-dimethylamino-2-methyl-1-propanol, diethanolamine and their mixtures; and a dye of an acid-sensitive pigment, encapsulated into a polymer, which is a copolymer of sterol, acrylic acid and methacrylic acid or its ether, dispersed in the liquid carrier. Also an ink set is described for jet printing, as well as a method to print images with application of the specified ink.

EFFECT: improved quality of images both on glossy surface and on plain paper.

14 cl, 6 tbl, 6 ex

FIELD: printing industry.

SUBSTANCE: dye composition for jet recording is proposed, containing a ground pigment, a surfactant and a system of non-aqueous dissolvents. The system of non-aqueous dissolvents includes 1) from around 50 wt % to around 95 wt % of the main system of co-solvents, selected from a group of ethers of propylene glycol, acetates of glycol ether, ketones and esters, having surface tension of less than 32 dyne/cm (32x10-5 N/cm) at 25°C; 2) from around 1 wt % to around 30 wt % of the second system of co-solvents selected from a group of n-ethyl pyrrolidone, propylene carbonate, N-methyl pyrrolidone, methyl ester of lactic acid, 1,3-butanediol and glyceryl acetate, having surface tension of more than 32 dyne/cm (32x10-5 N/cm) at 25°C; 3) from around 1 wt % to around 10 wt % gamma-butyrolacton; 4) at least 2 wt % of resin dissolved in the dye composition. Also a group of dyes is proposed, containing the specified dye composition, as well as a method of images printing.

EFFECT: higher speed of dye drying, its stability to fading and improved spreading of a raster dot.

13 cl, 7 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to ink systems for jet printing, containing a fixing composition with low corrosion activity. The invention discloses a fixing composition for jet printing, containing water or a mixture of water and at least one water-miscible organic solvent, and a polycationic fixing agent whose counterion is not a halogen, where the counterion is selected such that it reduces availability of the halogen in the fixing agent. The invention also discloses a method of applying an essentially noncorrosive ink composition and a jet system for providing ink with low corrosion activity.

EFFECT: invention reduces the negative effect of the fixing agent on components of the printing head while preserving all its useful properties.

10 cl, 2 dwg

Container for fluid // 2417934

FIELD: transport, package.

SUBSTANCE: invention relates to containers for fluids, e.g. inks, to be used in jet printers. Proposed container comprises top, front, bottom, rear and two lateral walls. Ink feed orifice is arranged on bottom wall, while electric contact for connection with electric connector is arranged in mounting section. Container incorporates storage of data used by main unit connected to said electric contact arranged nearby bottom and front walls and inclined thereto.

EFFECT: reliable operation and protection of electric contact against spillage of ink.

8 cl, 22 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: printing industry.

SUBSTANCE: invention relates to transportation of sheets in a printing device. The device comprises a mechanism causing an object motion, a unit for collecting information related to value of mechanism excitation, a sensor to grip an object surface with the purpose to collect data of an image, a processing module to process the first data of the image and the second data of the image collected by the sensor at various moments of time, and a control unit to control the mechanism on the basis of information on motion received with the help of the processing module. At the same time the processing module cuts a template of the image of the area of the first data of the image, limits the range of searching in the second data of image, within which such information is sought for on the basis of information collected by the unit of information collection, searches for a similar area within the limited range of searching in the second data of the image and receives information on the object movement on the basis of the position link between the image template in the first data of the image and the similar area in the second data of the image.

EFFECT: invention makes it possible to move a sheet with higher speed and also to receive information on its movement for a short period of time.

15 cl, 22 dwg

FIELD: printing industry.

SUBSTANCE: invention relates to a jet recording device, which records by using driving transmission gear. The driving transmission gear by means of unit to switch condition of rotation switches between the condition of the limited rotation and the condition of the free rotation. In the limited rotation condition the planetary gear is engaged with the master inlet gear, and a pressing device is not able to transmit rotary moving force. In the free rotation condition the planetary gear is disengaged from the master inlet gear, and a pressing device is able to transmit rotary moving force. The mechanism of the movement transmission switching comprises the first and the second support sections, which are engaged with the planetary lever turned in the free rotation condition to set the initial condition of the planetary gear rotation position. The mechanism of movement transmission switching is able to select, which one of the first and the second support sections gets engaged with the planetary lever in compliance with the position of the master inlet gear, which transmits rotary moving force, from multiple master inlet gears.

EFFECT: increased reliability of the invention due to simplification of mechanisms.

19 cl, 21 dwg

FIELD: printing industry.

SUBSTANCE: container with liquid. Two side surfaces 15 and 25 of a rectangular flat ink container 100 cross short sides of its front surface 11 towards an insert. A printed circuit board 17 and a structure 40 for fixation of the container 100 are shaped on its side surface 15, which is the upper surface, and on the side 25, which is the lower surface.

EFFECT: invention provides for the possibility to locate the container with high tightness in the holder for containers of the liquid consumption device without deterioration of electric contact between contact points of contact output of the liquid consumption device and container printed circuit board.

26 cl, 19 dwg

FIELD: printing industry.

SUBSTANCE: invention relates to method to manufacture a silicon substrate of a liquid ejection head, which is equipped with an element of energy generation to eject liquid and a hole passing through silicon substrate, to supply liquid to the generation element. Method of the substrate manufacturing includes the following stages: formation of multiple concave sections at the back surface of the silicon substrate with plane orientation {100}, besides, the concave sections are oriented towards the first surface and are aligned in rows in direction <100> of the first surface; and formation of multiple holes for liquid ejection by axial crystalline anisotropic etching at the silicon substrate via concave sections with the help of the etching fluid, etching speed of which on the plane {100} of the silicon substrate is less than the etching speed on the plane {110} of the silicon substrate.

EFFECT: improved accuracy of silicon sections manufacturing between holes along width.

6 cl, 38 dwg

FIELD: printing engineering, in particular, printing devices (printers) with a thermo-jet printing head.

SUBSTANCE: the cartridge has a reservoir for ink, in which a stable negative pressure is maintained. For maintaining of a stable negative pressure in the reservoir use is made of a single component fulfilling simultaneously the functions of the reservoir walls and the regulator of negative pressure in the reservoir. A bag of film material is used as such a component.

EFFECT: provided a high-quality printing due to a uniform feed of ink during the whole service life, minimized number of components for fabrication process.

3 cl, 4 dwg

FIELD: jet printers.

SUBSTANCE: ink feed system has writing jet printing element, having low shape coefficient of height and having a resource of ink for applying to carrier, receiving ink. Onto writing element, having low shape coefficient of height, an adapter 50 is placed, allowing to mount this printing element with possible removal from shoe for printing element. Dimensions of shoe provide for placement of printing element, having large shape coefficient of height. Cartridge 20 for jet printing includes body, printing head on the body, base surfaces on body for precise positioning of body in fixed reproducible position in first construction of carriage, and group of electric contacts of cartridge, mounted on body of cartridge and electrically connected to printing head. Group of electric contacts is placed on body to provide for electric contact to appropriate group of electric contacts of first construction of carriage, when a cartridge is mounted in first construction of carriage. Construction of adapter is mounted on body of cartridge to produce assembly of construction of adapter or cartridge, while this assembly is meant for placement in second construction of carriage, configuration of which provides for placement of jet printing cartridge of other dimension in fixed reproducible position. Second construction of cartridge has second set of electric contacts of carriage. This provides for use of cartridge of one dimension and configuration in printer with shoe of carriage, meant for use with cartridge of other dimension of configuration.

EFFECT: higher efficiency.

4 cl, 13 dwg

Image creator // 2249241

FIELD: forming of labels to protect against forging, copying of information.

SUBSTANCE: device can also be used for direct transformation of properties of materials and production of micron and sub-micron size functional structures without using resistive masks. Device has vacuumed camera inside which accelerated electron beam source is placed with divergence angle of 20 degrees. Device also has spatial modulator and unit for registering images; both last members are placed on the way of the beam. Spatial modulator is made in form of plate provided with holes. Side walls of all the holes are provided with pair of electrodes disposed opposite to each other. One of electrode of each pair is connected with power source through common wire and the other one - through controlled commutator. Micron and sub-micron sizes of elements of images are provided as well as increase in carrying capacity of any hole, simultaneous and independent control of carrying capacity of all the holes and creation of multi-layer images without spatial modulator and means for fixing images getting used .

EFFECT: improved efficiency of operation.

11 cl, 3 dwg

FIELD: ink-jet printers, cartridges with ink and a holder for the cartridges with ink.

SUBSTANCE: the invention concerns to a cartridge with ink and a holder of cartridges with ink used for an ink-jet printer. The cartridge with ink contains: a main body having the first wall and a front side wall, which intersects with the first wall of the main body; a sector of connecting electrodes located on a part of the first wall of the main body of the cartridge with ink and containing at least one connecting electrode electrically linked with a storage element; a sector of ink delivery located on the front side wall; a positioning sector for direction of a cartridge with ink on a positioning element of the printing device, at that the position sector directs the positioning element of the printing device to turn the sector of the connecting electrodes in the direction, in essence, in parallel to the mentioned sector of the connecting electrodes. Such solution improves reliability of the electrical connection of the cartridge and its holder.

EFFECT: the invention improves reliability of the electrical connection of the cartridge and its holder.

21 cl, 23 dwg

FIELD: jet printing cartridges.

SUBSTANCE: universal body of jet printing cartridge has several ink reservoirs, which can be used for applications utilizing monochromatic and polychromatic printing. Direction of ink flow is implemented by simple alternation of compaction of printing head mounted on body, while this compaction can be a configuration of glue. Such implementation allows mixing of ink contained in all reservoirs, in the head with same cartridge configuration, or to direct appropriate ink to different portions of printing head for polychromatic printing applications. Same construction of body can be utilized for two or more cartridge configurations. Construction of nose piece forms several ink channels, passing from respective ink reservoirs to area of printing head assemblage. For mounting printing head and finishing configuration of slits for ink, flowing from reservoirs to matrix (matrices) of printing head nozzles, a compaction is applied.

EFFECT: higher efficiency.

4 cl, 8 dwg

FIELD: production of a replaceable ink container for the ink feeding in an ink-jet printing system.

SUBSTANCE: the invention is pertaining to the field of production of a replaceable ink container for the ink feeding in an ink-jet printing system. At that the printing system has its site mounted on the scanning carriage. At the site has an inlet opening for a liquid and the electrical contacts electrically connected to a section of control of the printing system work. At that the replaceable container has a tank for ink, and the lower butt surface perpendicular to a leading butt surface. At that the lower butt surface forms an outlet opening for a liquid and has a form to couple with the liquid inlet opening located on the site. Besides the replaceable ink container also has a keeping information electric device coupled to the ink container connected for storage of information on the replaceable ink container and the electric contacts mounted on the leading butt surface and electrically connected with the electric device for information storage. At that each of electric contacts located on the ink container has the form to interact with each of the electric contacts on the site for a working connection with the electric device for the information storage and with a part of the printing system control and a means of a catcher located on the leading butt surface in immediate proximity to the butt surface. At that the catcher has a means of catching for engagement of a corresponding means of catching located on the mounting surface to fasten the leading butt surface of the ink to the site. The offered development also concerns to the method ensuring the electrical connection and the liquid communication between the replaceable ink container and the site. The offered method and the device ensure production of the replaceable ink containers, which one easily mounted and removed. At that an ink container installation ensures the reliable liquid and electric coupling with the printing system. At that the ink containers should be simple in production and so reducing the cost of the ink feeding, and consequently also reducing the cost of one page print.

EFFECT: the invention ensures production of the replaceable ink containers easily mounted and removed, providing the reliable liquid and electric connection with the printing system, simplification of their production, reduction of cost and consequently reducing the cost of one page print.

8 cl, 21 dwg

Printing device // 2256560

FIELD: printing devices.

SUBSTANCE: device has feeding section, meant for feeding paper for printing one sheet after another separately, and transporting route, passing, actually, linearly for transporting printed data carrier, having high rigidity. A portion of feeding section is overlapped with transporting route in vertical transverse direction, but does not in direction, perpendicular to direction of transporting of carrier of printed information.

EFFECT: simplified construction, lower costs, higher reliability, broader functional capabilities.

18 cl, 22 dwg

FIELD: optics.

SUBSTANCE: device has light radiation source, deflecting device and optical image generation circuit, including optical element for forming an image, position so that when aligned to direction of additional scanning main beam of deflected light beam passes portion excepting optical axis. In first variant optical element has surface with alternating grade of sagittal non-sphericity, which changes along direction of main scanning of said optical element. In range of effective scanning of surface value of displacement of position of falling light beam in direction of additional scanning is made the same. In second variant of scanning device optical element is made so that on surface for scanning position of images of two light beams, falling in a slanting manner on surface, perpendicular to rotation axis of said deflecting device, at angles γ and γ' (0≠γ<γ'), almost coinciding with each other.

EFFECT: broader functional capabilities, higher efficiency.

8 cl, 30 dwg

FIELD: correct distribution of ink points of the respective colors on printing environment on printing on it of the color image within a wide range of natural colors.

SUBSTANCE: the printing system has a printer that produces points of a great number of various inks for various inks for image printing, and a printer controller that fed control information to the mentioned printer for control of production of points of a great number of various inks. The printing controller has an assembly for determination of the conditions of ejection of drops of a great number of the main colored and dark inks making use of the input video data, area of the additional length of the light absorption wave, and a unit of output of control information, which produces information for the printer. The printer has an input unit of control information, which obtains control information for determination of the conditions of ejection of the drops of the great number of the main colored black an inks and dark inks, as well as a unit for formation of points, which produces points of a great number of the main colored and dark inks.

EFFECT: enhanced degree of freedom at determination of the conditions of ejection of drops of the respective ink, reduced amount of consumed ink, provided high quality of final printed image.

51 cl, 52 dwg

FIELD: ink cartridges.

SUBSTANCE: one-sided valve is placed in chamber for ink of ink cartridge and includes support part of substrate, support part of wall, projecting at angle from inner side of support portion of substrate, support portion of clamp, bending towards inner side of support portion of wall and support portion of head, projecting from support portion of clamp and made with through opening. Compacting assembly for valve is kept in contact with through opening of supporting portion of head due to pressure difference. This compacting assembly is made as a single whole with block portion and placed in outlet channel for ink.

EFFECT: higher efficiency.

4 cl, 48 dwg

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