Inkjet printer, ink supply container, and ink filling method

Abstract

The application discloses an inkjet printer, an ink supplement container and an ink filling method. The inkjet printer comprises a processing part and a plurality of ink tanks. The ink tank comprises a tank body, an ink filling part, a light source, a photoelectric conversion device and an opening and closing part. The tank body is provided with a containing chamber for containing printing materials. The ink filling part is connected to the tank body and is used for inserting the ink supplement container. The light source and the photoelectric conversion device are arranged in the ink filling part. During the insertion of the ink supplement container into the ink filling part, the light source irradiates light on the ink supplement container. The photoelectric conversion device detects the light quantity characteristics reflected or transmitted from the ink supplement container. The processing part judges the printing material characteristics of the ink supplement container according to the light quantity characteristics detected by the photoelectric conversion device. The opening and closing part changes the communicability between the ink supplement container and the ink tank, so that the correct color and / or type of printing materials can be added into the printer, and the error filling of the printing materials can be avoided.

Description

Technical Field

[0001] This application relates to the field of inkjet printing technology, specifically to an inkjet printer, an ink refill container, and an ink filling method. Background Technology

[0002] Printers are widely used as one of the important devices for office automation.

[0003] An inkjet printer is available which includes an ink tank containing printing material (such as ink) and a recording head that uses ink supplied from the ink tank to record an image onto a printing medium. The ink tank has an inlet for refilling ink via an ink refill container (such as an ink bottle or ink bag). Compared to printers using removable ink cartridges, this type of printer holds more ink and is easier to refill.

[0004] The ink cartridges of this type of printer are generally not removable from the printer body. Users are prone to filling the ink cartridges incorrectly, such as filling a cartridge containing black ink with yellow ink, or filling a cartridge containing ink of the same color with ink of different compositions. Such situations will result in a large amount of ink mixing, leading to printing defects. In addition, since the ink cartridges cannot be replaced, the printer may become unusable due to ink mixing, resulting in losses for the user. Summary of the Invention

[0005] In order to overcome the problems existing in the prior art, the main objective of this application is to provide an inkjet printer, an ink refill container, and an ink filling method that can avoid printing defects caused by ink mixing.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] This application provides an inkjet printer, including a processing unit and a plurality of ink tanks, wherein the ink tanks include:

[0008] The tank body is equipped with a compartment for holding printing materials;

[0009] An ink filling section, connected to the tank body, is used for inserting an ink refill container so that the ink refill container can fill the tank body with printing material through the ink filling section;

[0010] A light source, disposed in the ink filling section, is used to illuminate the ink filling container with light during the insertion of the ink refill container into the ink filling section;

[0011] A photoelectric conversion device is disposed in the ink filling part for detecting the light quantity characteristics reflected or transmitted from the ink replenishment container. The processing unit is used to determine the printing material characteristics of the ink replenishment container based on the light quantity characteristics detected by the photoelectric conversion device.

[0012] An opening / closing element, disposed in the ink filling section, is used to change the connectivity between the ink replenishment container and the receiving chamber;

[0013] When the processing unit determines that the printing material characteristics of the ink refill container match the preset printing material characteristics of the corresponding ink can based on the light intensity characteristics detected by the photoelectric conversion device, it controls the ink refill container to communicate with the receiving chamber through the opening and closing device.

[0014] In one specific embodiment, the processing unit determines the printing material characteristics of the ink refill container based on the changes in the level signal output by the photoelectric conversion device;

[0015] When the output information of the photoelectric conversion device matches the preset information, the opening and closing element maintains the connectivity between the ink replenishment container and the receiving chamber.

[0016] In one specific implementation, the opening / closing member is movable between a first position and a second position;

[0017] When the opening and closing element is in the first position, the opening and closing element blocks the ink refill container from communicating with the receiving chamber; when the opening and closing element is in the second position, the opening and closing element allows the ink refill container to communicate with the receiving chamber.

[0018] When the processing unit determines, based on the light intensity characteristics detected by the photoelectric conversion device, that the printing material characteristics of the ink refill container match the preset printing material characteristics of the corresponding ink can, the opening / closing member moves from the first position to the second position.

[0019] In one specific embodiment, the ink filling section is provided with a slot for inserting the ink refill container, and the light source and the photoelectric conversion device are disposed in the slot.

[0020] In one specific embodiment, the ink can also include an ink tube that can be inserted into the ink refill container, with the opening and closing element at least partially located above the ink tube.

[0021] In one specific embodiment, the inkjet printer further includes a position control device for controlling the opening and closing member to move between the first position and the second position;

[0022] The position control device is an electromagnetic control device, which includes an adsorption unit and an adsorbed body. The adsorption unit includes an iron core and a coil wound on the outer surface of the iron core. The adsorbed body is connected to the opening and closing member, and the adsorbed body is a magnet or an iron body. The processing unit is also used to control the on and off of the coil current.

[0023] Correspondingly, this application also provides an ink refill container for use in the inkjet printer described in any of the above embodiments, the ink refill container comprising:

[0024] The container body is used to hold printing material for filling the ink can;

[0025] An ink outlet is provided at the end of the container body. The ink outlet has a flow channel cavity that communicates with the container body. An ink outlet is provided at the end of the flow channel cavity. The ink outlet is used to allow printing material inside the container body to flow out.

[0026] The detection unit is located outside the ink outlet and is within the effective range of the light source and the photoelectric conversion device during the insertion of the ink refill container into the ink filling section.

[0027] In one specific embodiment, the ink refill container further includes a positioning part, which is disposed outside the ink outlet and is used to cooperate with the ink filling part for positioning.

[0028] In one specific embodiment, the detection unit is provided with a light-transmitting identification hole for characterizing the printing material properties in the corresponding ink replenishment container.

[0029] In one specific embodiment, the number of light-transmitting identification holes provided on the detection section of the ink refill container that contains printing materials with different characteristics is different, and / or the positions of the light-transmitting identification holes provided on the detection section of the ink refill container that contains printing materials with different characteristics are different.

[0030] In one specific embodiment, the detection unit includes a light-transmitting detection window, and the detection unit has an ink cavity communicating with the flow channel cavity, with the detection window located on the side wall of the ink cavity.

[0031] In one specific embodiment, the detection unit includes two detection windows located on two opposite sidewalls of the ink cavity. The light transmission range of the ink cavity on both sides where the detection windows are located at least partially overlaps. The light source and the photoelectric conversion device are located on both sides of the detection unit where the detection windows are located.

[0032] In one specific embodiment, the detection unit includes a detection window, and the light source and the photoelectric conversion device are both located on the side of the detection unit where the detection window is located.

[0033] Accordingly, this application also provides an ink filling method for an application scenario where ink is filled into an inkjet printer as described in the above embodiments using an ink refill container. The ink filling method includes the following steps:

[0034] S101: Align the ink outlet of the ink refill container with the ink filling part and insert it;

[0035] S102: Detect the light intensity characteristics of the detection unit using the light source and the photoelectric conversion device, and output corresponding information through the photoelectric conversion device;

[0036] S103: After processing the output information of the photoelectric conversion device, the processing unit compares it with the preset ink filling conditions. If the comparison is successful, step S104 is executed; otherwise, step S105 is executed.

[0037] S104: The processing unit controls the opening / closing member to move from the first position to the second position;

[0038] S105: The processing unit controls the opening and closing member to remain in the first position, and outputs an error message at the same time.

[0039] Accordingly, this application also provides an ink filling method for an application scenario where ink is filled into an inkjet printer as described in the above embodiments using an ink refill container. The ink filling method includes the following steps:

[0040] S201: Align the ink outlet of the ink refill container with the ink filling part and insert it;

[0041] S202: Detect the light intensity characteristics at the detection window using the light source and the photoelectric conversion device, and output corresponding information through the photoelectric conversion device;

[0042] S203: After the processing unit processes the output information of the photoelectric conversion device, it compares it with the preset ink filling conditions. If the comparison is successful, step S204 is executed, followed by step S206; otherwise, step S205 is executed.

[0043] S204: The processing unit controls the opening / closing member to move from the first position to the second position;

[0044] S205: The processing unit controls the opening and closing member to remain in the first position, and outputs an error message at the same time;

[0045] S206: At preset intervals, the light intensity characteristics at the detection window are detected once using the light source and the photoelectric conversion device, and the corresponding information is output through the photoelectric conversion device;

[0046] S207: After processing the output information of the photoelectric conversion device, the processing unit compares it with the preset stop conditions. If the comparison is successful, step S208 is executed; otherwise, step S206 is returned.

[0047] S208: The processing unit outputs ink filling completion information.

[0048] Compared to existing technologies, this application incorporates a light source, a photoelectric conversion device, and a switching device in the ink filling section of the inkjet printer. During the insertion of the ink refill container into the ink filling section, light is shone onto the ink refill container by the light source. The photoelectric conversion device detects the light intensity characteristics reflected or transmitted from the ink refill container, enabling the processing unit to determine the printing material characteristics of the ink refill container based on these characteristics. When it is determined that the printing material characteristics of the ink refill container do not match the preset printing material characteristics of the corresponding ink tank, the opening and closing device blocks the connection between the ink refill container and the ink tank, preventing the printing material in the ink refill container from being injected into the ink tank. When it is determined that the printing material characteristics of the ink refill container match the preset printing material characteristics of the corresponding ink tank, the opening and closing device controls the connection between the ink refill container and the ink tank, allowing the printing material in the ink refill container to be injected into the ink tank. This ensures that the ink refill container is filled with the correct color or type of ink, preventing incorrect ink filling. Attached Figure Description

[0049] Figure 1 This is a simplified structural diagram of an inkjet printer provided in Embodiment 1 of this application;

[0050] Figure 2 A simplified structural diagram of the printing material receiving unit provided in Embodiment 1 of this application;

[0051] Figure 3 This is a simplified structural diagram of the printing material receiving unit provided in Embodiment 1 of this application from another angle;

[0052] Figure 4 This is a partial exploded view of the printing material receiving unit provided in Embodiment 1 of this application;

[0053] Figure 5 This is a schematic diagram of the structure behind the hidden cover of the printing material receiving unit provided in Embodiment 1 of this application;

[0054] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0055] Figure 7 This is a cross-sectional view of the printing material receiving unit provided in Embodiment 1 of this application;

[0056] Figure 8 This is a schematic diagram of the structure of the ink refill container provided in Embodiment 1 of this application;

[0057] Figure 9 A diagram showing the positional relationship between the ink refill container, the light source, and the photoelectric conversion device provided in Embodiment 1 of this application;

[0058] Figure 10 A diagram showing the relationship between the ink refill container and the opening / closing element and ink tube in the first position when the ink refill container is inserted into the slot and in the third position according to Embodiment 1 of this application.

[0059] Figure 11 A diagram showing the relationship between the ink refill container and the opening / closing element and ink tube in the second position when the ink refill container is inserted into the slot and is in the fourth position, according to Embodiment 1 of this application.

[0060] Figure 12 This diagram illustrates the relationship between the ink refill container, the opening / closing element, and the ink tube when the opening / closing element is in the first position in the slot of the ink refill container provided in Embodiment 2 of this application.

[0061] Figure 13 This is a diagram showing the positional relationship between the ink refill container, the light source, and the photoelectric conversion device provided in Embodiment 3 of this application.

[0062] Figure 14 This is another ink refill container provided in Embodiment 3 of this application;

[0063] Figure 15 This is a schematic diagram of the structure of the ink refill container according to Embodiment 5 of this application;

[0064] Figure 16-1 This is a diagram showing the relationship between the ink replenishment container, the opening / closing component, and the ink tube when the ink replenishment container is in the third position in the slot of Embodiment 5.

[0065] Figure 16-2 This is a diagram showing the relationship between the ink replenishment container, the opening / closing component, and the ink tube when the ink replenishment container is in the fourth position in the slot of Embodiment 5.

[0066] Figure 17 This is a signal diagram of the sensor output in Embodiment 5 of this application;

[0067] Figure 18 This is a structural deformation diagram of the ink replenishment container and its detection unit according to Embodiment Six of this application;

[0068] Figure 19 This is a schematic diagram showing the interaction between the ink refill container, the opening and closing mechanism, the ink tube, and the sensor in Embodiment Six of this application.

[0069] Figure 20 This is a signal diagram of the sensor output in Embodiment Six of this application;

[0070] Figure 21 This is a structural deformation diagram of the ink replenishment container and its detection unit according to Embodiment 7 of this application;

[0071] Figure 22 This is a signal diagram of the sensor output in Embodiment 7 of this application;

[0072] Figure 23 This is a signal diagram of the sensor output when the ink replenishment container is accidentally inserted in Embodiment 7 of this application. Detailed Implementation

[0073] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0074] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0075] In the description of this specification, it should be understood that the directional terms such as "upper" and "lower" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0076] Example 1

[0077] Reference Figure 1 and Figure 2 As shown, Figure 1 This is a perspective view of the inkjet printer 10 according to this embodiment. Figure 2This is a perspective view of the printing material receiving unit according to this embodiment. In this embodiment, the printer 10 is a multifunction printer including a printer unit 100 and a scanner unit 200. In some embodiments, the printer 10 may have other functions such as faxing in addition to printing and scanning functions, or it may only have printing functions. In addition, the printer 10 also includes a printing material receiving unit 1, which is provided with an ink tank 11, and the printer unit 100 is an inkjet printer that performs printing using ink supplied from the ink tank 11.

[0078] Figure 1 The diagram shows the Y-axis, the X-axis (orthogonal to the Y-axis), and the Z-axis (orthogonal to both the X-axis and Y-axis). In the X, Y, and Z axes, the direction of the arrows indicates the positive direction, and the direction opposite to the arrow indicates the negative direction. Hereinafter, the positive direction of the X-axis will be denoted as +X or "right," and the negative direction as -X or "left." Similarly, the positive direction of the Y-axis will be denoted as +Y or "forward," and the negative direction as -Y or "backward"; the positive direction of the Z-axis will be denoted as +Z or "up," and the negative direction as -Z or "down." In its operating state, the printer 10 is positioned on a horizontal plane defined by the X and Y axes, with the +Y direction representing the front of the printer 10. The Z-axis is an axis orthogonal to the horizontal plane, and the -Z direction is the vertically downward direction.

[0079] Continue to refer to Figure 1 As shown, the printer 10 also includes an operation panel 101 serving as a user interface. The operation panel 101 is equipped with buttons for operations such as turning the printer on / off, printing-related operations using the printing function, and reading originals using the scanning function. Additionally, the operation panel 101 is also equipped with a display unit 150 for displaying the printer's operating status and messages.

[0080] Continue to refer to Figure 2 As shown, Figure 2The diagram illustrates a printing material receiving unit 1 for a printer, which connects to the ink supply tube of the inkjet printer, allowing ink to be supplied from the printing material receiving unit 1 to the print head of the inkjet printer for inkjet printing on a recording medium. In specific configurations, the printing material receiving unit 1 can be located in the front right direction of the inkjet printer. Depending on actual needs, the printing material receiving unit 1 can also be located in other parts of the printer, such as the front left direction. Furthermore, the printing material receiving unit 1 can be detachably connected to the inkjet printer via a snap-fit ​​mechanism, a pressing mechanism, or threaded fasteners, or it can be completely fixed to the inkjet printer body. However, such disassembly is often not permitted for users. In some embodiments, the printing material receiving unit 1 can also be located inside the inkjet printer, surrounded by the printer housing. Therefore, user disassembly may render the inkjet printer unusable due to irreparable damage.

[0081] In this embodiment, the printing material receiving unit 1 has a generally rectangular shape and includes ink tanks 11 for holding printing material, which can be ink, toner, molding material, or other combinations. The following description uses ink as an example. Generally, the printing material receiving unit 1 may have multiple ink tanks 11 for holding ink. In this embodiment, the printing material receiving unit 1 has four ink tanks 11, arranged along the X-axis, for holding black, cyan, red, and yellow inks respectively. It should be understood that the number of ink tanks 11 can be set according to actual conditions. For example, it may include only one ink tank 11 for holding black ink, or it may include other numbers of ink tanks 11, such as two, three, or six.

[0082] When the printer indicates that the ink level in the ink tank is low, the user can inject ink from an ink replenishment container (such as an ink bottle, ink bag, ink reservoir bag, etc.) into the ink tank 11 of the printing material holding unit 1 to replenish the ink in the ink tank 11.

[0083] Simultaneously refer to Figures 2 to 6As shown, the ink tank 11 includes a tank body and an ink filling section 12. The tank body has a receiving chamber for containing ink. The ink filling section 12 is connected to the tank body and is used for inserting an ink refill container so that the ink refill container can fill the tank body with ink through the ink filling section 12. Specifically, the ink filling section 12 includes a cover 129 and multiple slots 121 for inserting ink refill containers, and an ink injection port 13 formed inside each slot 121. The multiple slots 121 are arranged along the X direction, and each slot 121 corresponds to one ink tank 11 in the printing material receiving unit 1. The multiple slots have the same shape and structure, and the following description uses one slot 121 as an example. The slot 121 includes a first groove 122, a second groove 123, and a third groove 124. The third groove 124 is located in the middle of the slot 121 and has a circular structure. The first groove 122 is located on the +Y direction side of the third groove 124 and has a square structure. The second slot 123 is located on the -Y direction side of the third slot 124 and has a square structure. An ink inlet 13 is formed on an ink tube 14, which is formed in the third slot 124 of the slot 121 and protrudes upward from the bottom 125 of the slot 121. The inlet 13 connects to the receiving chamber 111 of the ink tank 11, allowing external ink to be replenished into the ink tank 11 through the inlet 13. Optionally, the shapes and structures of the multiple slots can be different to match ink refill containers 3 of different colors. Specifically, the shapes and structures of the first slot 122 and the second slot 123 of each slot 121 can vary considerably, and the positioning portion (described in detail below) on the ink refill container for matching the slot 121 is matched according to the shapes and structures of the first slot 122 and the second slot 123 to distinguish ink refill containers of different colors. For example, a black ink refill container cannot be inserted into the slot 121 corresponding to a non-black ink tank 11. This design effectively prevents misinsertion of ink refill containers.

[0084] Furthermore, the printer 10 also includes a processing unit, a sensor unit, and an opening / closing device. The sensor unit and the opening / closing device are located in the ink filling section. During the insertion of the ink refill container into the ink filling section, the sensor unit detects the characteristics of the amount of light reflected or transmitted through the ink refill container, and the opening / closing device controls the connection between the ink refill container and the receiving chamber of the ink tank 11. The processing unit controls the operation of the sensor unit and the opening / closing device, and can perform functions such as drive control, ink characteristic determination processing, ink level detection processing, and ink presence / absence determination processing.

[0085] Reference Figure 5 and Figure 6As shown, the sensor unit includes a light source 21 and a photoelectric conversion device 22. In this embodiment, the light source 21 and the photoelectric conversion device 22 are disposed on a substrate. The light source 21 is disposed on the left side wall 126 of the first slot 122 of the slot 121, and can illuminate the inner side of the first slot 122. The light source 21 may include an LED and a light guide for guiding light, and may also be a light-emitting diode with R, G, and B. The light-emitting diodes R, G, and B are switched at high speed and emitted sequentially. The light-emitting diode with R is represented as a red LED, the light-emitting diode with G is represented as a green LED, and the light-emitting diode with B is represented as a blue LED.

[0086] In this embodiment, the photoelectric conversion device 22 is disposed on the right side wall 127 of the first slot 122 of the slot 121 and is positioned opposite to the light source 21 in the X direction. It can receive the light emitted by the light source 21 and output a corresponding signal. The photoelectric conversion device 22 can be, for example, an image sensor or a photoelectric sensor. The processing unit can infer the presence or absence of ink and ink characteristics based on the output signal of the photoelectric conversion device 22. The photoelectric conversion device 22 can be a chip with a photoelectric conversion element. Increasing the number of photoelectric conversion devices 22 can increase the reading range of the incident light, thereby expanding the range of objects that can detect ink levels. The number of photoelectric conversion devices 22 is not strictly limited; there can be one or more. In other embodiments, the photoelectric conversion device 22 and the light source 21 can also be disposed in the second slot 123, the third slot 124, or other positions in the ink filling section.

[0087] Simultaneously refer to Figures 5 to 7 As shown, the opening and closing device is used to control the connection between the receiving chamber 111 inside the ink tank 11 and the ink refill container 3, that is, it can block or allow the connection between the receiving chamber 111 inside the ink tank 11 and the ink refill container 3. For example, it can control whether the ink refill container inserted into the slot 121 can be connected to the inlet 13 of the ink tank 11, or whether ink can enter the ink tank 11 when the ink refill container is already connected to the inlet 13 of the ink tank 11.

[0088] When the ink refill container is inserted into the ink filling section 12, the light source 21 illuminates the ink refill container. The photoelectric conversion device 22 detects the light intensity characteristics reflected or transmitted from the ink refill container, enabling the processing unit to determine the ink characteristics of the ink refill container based on the light intensity characteristics detected by the photoelectric conversion device 22. If it is determined that the ink characteristics of the ink refill container match the preset ink characteristics of the corresponding ink tank, the opening and closing device allows the ink refill container to communicate with the ink tank, allowing the ink in the ink refill container to be replenished into the ink tank. If it is determined that the ink characteristics of the ink refill container do not match the preset ink characteristics of the corresponding ink tank, the opening and closing device blocks the ink refill container from communicating with the ink tank, preventing the ink in the ink refill container from being replenished into the ink tank.

[0089] Specifically, the opening and closing device includes an opening and closing element 4, a reset mechanism 5, and a position control device 6. The opening and closing element 4 is located in the ink filling section 12 and is used to change the connectivity between the ink replenishment container and the receiving chamber 111. That is, the opening and closing element 4 can allow or block the communication between the ink replenishment container and the receiving chamber 111. The opening and closing element 4 can move between a first position and a second position. When the opening and closing element 4 is in the first position, it blocks the communication between the ink replenishment container and the receiving chamber 111 of the ink tank 11. When the opening and closing element 4 is in the second position, it allows the communication between the ink replenishment container and the receiving chamber 111 of the ink tank 11. In this embodiment, the opening and closing element 4 is rotatably mounted on the +Y direction side of the sidewall of the slot 121. It includes a shaft portion 41, a connecting portion 42, and a blocking portion 43. The shaft portion 41 extends along the Z-axis direction and is pivotally fitted onto a protrusion located on the front side of the slot 121, so that the opening and closing element 4 can rotate about an axis parallel to the Z-axis direction.

[0090] The two ends of the connecting portion 42 are respectively connected to the shaft portion 41 and the blocking portion 43, and their shape and structure are not strictly limited. The blocking portion 43 extends from one end of the connecting portion 42 and is flat, including a surface parallel to the XY plane. The surface of the blocking portion 43 is located above the injection port 13 and can block the insertion of the ink refill container. In this embodiment, when the opening and closing member 4 is in the first position, the blocking portion 43 passes through the through hole located on the front side wall 128 of the slot 121 and enters the inner side of the first slot portion 122 to block the insertion of the ink refill container. At this time, the ink refill container is separated from the injection port 13, that is, it can prevent the ink refill container from communicating with the ink tank 11's receiving chamber 111. When the opening and closing member 4 is in the second position, the opening and closing member 4 retracts relative to the front side wall 128 of the slot 121. In this position, the insertion of the ink refill container is not blocked, the ink refill container can be inserted into the slot 121 and can communicate with the injection port 13, that is, the ink refill container is allowed to communicate with the ink tank 11's receiving chamber 111. The movement of the opening / closing member 4 is not limited to rotating between the first and second positions; it can also move between the first and second positions by translation.

[0091] The reset mechanism 5 is used to force the opening / closing member 4 to the first position. In this embodiment, the reset mechanism 5 is a compression spring, one end of which abuts against the side wall of the ink filling part of the ink filling part 12, and the other end abuts against the connecting part 42, and the opening / closing member 4 is forced to the first position by its elastic tension.

[0092] The position control device 6 is used to control the position of the opening / closing member 4. In this embodiment, the position control device 6 is an electromagnetic control mechanism, which includes an adsorption unit 61 and an adsorbed body 64. The adsorption unit 61 includes an iron core 63 and a coil 62 wound around the outer surface of the iron core 63. The coil 62 is connected to a power source through a conductive wire. The adsorbed body 64 is fixedly disposed on the +Y axis side of the blocking part 43, and it can be a magnet or an iron body. The processing unit controls the electromagnetic control mechanism by controlling the on / off state of the current in the coil 62. When energized, the adsorbed body 64 is adsorbed due to the magnetism of the adsorption unit 61, and the opening / closing member 4 rotates from the first position to the second position. During this process, the opening / closing member 4 overcomes the elastic force of the compression spring, and the compression spring is compressed. When de-energized, the opening / closing member 4 returns to the first position from the second position under the action of the elastic restoring force of the compression spring. Alternatively, the position control device 6 can be an electromagnetic control device, or it can be a cam mechanism, gear mechanism, etc. controlled by the processing unit, as long as it can control the way the opening and closing member 4 moves between the first position and the second position.

[0093] Based on the printer described in the above embodiments, this application also discloses an ink refill container, which should be used in the printer of the above embodiments. The following is a detailed description... Figures 7 to 10 The structure of the ink refill container 3 used in the above printer is described in detail.

[0094] Reference Figures 8 to 10 As shown, the ink refill container 3 includes a generally cylindrical container body 31 and an ink outlet 32 ​​located at one end of the container body 31. The container body 31 and the ink outlet 32 ​​can be separate or integrated. The container body 31 is used to contain ink. The end of the ink outlet 32 ​​is adapted to the slot 121 and has a flow channel cavity communicating with the container body 31. An ink outlet 33 is provided at the end of the flow channel cavity for the ink in the container body 31 to flow out. Furthermore, the ink refill container 3 also includes a valve 34, a positioning part 35, and a detection part 36. The valve 34 is located at the ink outlet 33 and is self-sealing. During ink supply, the ink tube 14 of the ink filling part 12 is inserted into the ink outlet 33, so that the ink refill container 3 establishes a communication relationship with the receiving chamber 111 of the ink tank 11, that is, the ink in the ink refill container 3 can enter the ink tank 11.

[0095] In this embodiment, the positioning part 35 and the detection part 36 are located on opposite sides of the ink outlet 33. When the ink refill container 3 is inserted into the slot 121, the detection part 36 is located on the +Y direction side of the ink outlet 33, which is adapted to the first slot 122 and serves a positioning function. The positioning part 35 is located on the -Y direction side of the ink outlet 33, which is adapted to the second slot 123, allowing the ink refill container 3 to be inserted into the slot 121 in a preset posture. Furthermore, the detection part 36 is cuboid in shape and contains an ink cavity 361, which communicates with the container body 31 and the ink outlet 33. When the ink refill container 3 is inserted into the ink filling part 12, ink from the container body 31 can enter the ink cavity 361 and flow out through it, then out through the ink outlet 33.

[0096] For ease of detection, the detection unit 36 ​​includes a rectangular detection window 37 disposed on the side wall of the ink cavity 361. With the ink refill container 3 inserted into the slot 121, detection windows 37 are provided on opposite sides of the ink cavity 361 along the X-axis. One detection window 37 is positioned opposite the light source 21 located on one side of the first slot 122, and the other detection window 37 is positioned opposite the photoelectric conversion device 22 located on the other side of the first slot 122. The detection window 37 is made of a light-transmitting material, allowing light emitted from the light source 21 to enter the ink cavity 361 within the detection unit 36 ​​through one detection window 37, exit through the other detection window 37, and then enter the photoelectric conversion device 22. In other words, the photoelectric conversion device 22 can detect light entering from the other detection window 37. Alternatively, the detection window 37 can also be of other shapes, such as circular or elliptical.

[0097] In some other embodiments, depending on the position of the sensor unit in the slot 121, the detection unit 36 ​​and the detection window 37 may also be located above the ink outlet 33 or at other positions with ink on the ink outlet 32, as long as the light emitted from the light source 21 can pass through the detection window 37 and enter the photoelectric conversion device 22. Alternatively, the positioning unit 35 may be omitted.

[0098] The ink outlet 32 ​​also includes a blocking part 38, which is configured to cooperate with the blocking part 43 and can be blocked by the blocking part 43. In this embodiment, when the ink refill container 3 is inserted into the slot 121, the blocking part 38 is located at the lower end of the detection part 36. During the process of inserting the ink refill container 3 into the slot 121, the blocking part 38 is blocked by the opening and closing member 4 and is in a third position (e.g., Figure 10(As shown in the image) In this position, the ink refill container 3 is not connected to the inside of the ink tank 11. At this time, the ink outlet 33 of the ink refill container 3 is separated from the inlet 13. When the opening / closing member 4 is in the second position, the blocking part 38 is not blocked by the opening / closing member 4, and the ink refill container 3 can move from the third position to the fourth position. In the fourth position (as shown in the image) Figure 11 (As shown in the figure), the ink tube 14 on the ink tank 11 is inserted into the ink outlet 33, the ink refill container 3 is connected to the ink tank 11, and the ink in the ink refill container 3 can enter the ink tank 11.

[0099] In some other embodiments, depending on the position of the opening and closing member 4, the blocking part 38 can also be set in other positions of the ink replenishment container 3, and its shape and structure are not strictly limited. In addition, one or more opening and closing members 4 can be set.

[0100] Simultaneously refer to Figure 10 and Figure 11 As shown, Figure 10 and Figure 11 The diagram illustrates the coordination of various printer components during ink refilling. When the ink refill container 3 is not inserted into the ink refill section 12, the opening / closing member 4 is in the first position, and the blocking part 43 extends into the slot 121. When the ink refill container 3 is inserted into the ink refill section 12, the ink refill container 3 is in the third position due to the obstruction of the blocking part 38 by the blocking part 43. At this time, the sensor unit detects the ink in the ink chamber 361 corresponding to the detection unit 36 ​​and transmits the signal to the processing unit. When the processing unit determines that the ink characteristics in the ink refill container 3 meet the preset characteristics based on the signal output by the sensor unit, the processing unit controls the opening / closing member 4 to move from the first position to the second position. At this time, the blocking part 43 disengages from the blocking part 38, and the ink refill container 3 moves from the third position to the fourth position under its own weight or the force of the operator. The ink tube 14 is inserted into the ink outlet 33 of the ink refill container 3, and the inside of the ink tank 11 is connected to the ink refill container 3, allowing the ink in the ink refill container 3 to enter the receiving chamber 111 of the ink tank 11. After the ink refill container 3 is removed, the opening / closing member 4 returns to the first position under the force of the reset mechanism 5. Furthermore, if the processing unit determines that the ink characteristics in the ink refill container 3 do not meet the preset characteristics, the opening / closing member 4 remains in the first position. In this case, the ink refill container 3 cannot be inserted further, and the printer will display an error message or the display screen will prompt the user to change the type of ink refill container 3.

[0101] Optionally, this application may also include the following configuration: as ink in the ink refill container 3 is continuously added to the ink tank 11, the ink in the ink chamber 361 of the detection unit 36 ​​will gradually decrease and eventually flow out completely. At this time, the signal detected by the photoelectric conversion device 22 will change significantly (such as the difference in brightness when there is ink and when there is no ink). The processing unit can determine that the ink has been fully filled based on the change in the output signal of the photoelectric conversion device 22, and then prompt the printer that the ink has been fully filled. The user can then remove the ink refill container 3.

[0102] The following describes a method for determining ink characteristics based on the output signal of a sensor unit:

[0103] In this embodiment, the processing unit can determine the characteristics of the ink in the ink replenishment container 3 based on the light intensity characteristics detected by the photoelectric conversion device 22.

[0104] Since the amount of light detected by the photoelectric conversion device 22 is different for inks of different colors or inks of the same color with different compositions, information can be preset to ensure that the ink injected into the ink tank 11 conforms to the preset information.

[0105] Assuming the ink refill container 3 containing black ink has a detection value of 1 under the illumination of the red light source 21, a preset value of 1 or 1+X (where X represents the allowable error range) can be established. When the value detected by the ink refill container 3 inserted into the ink canister 11 containing black ink under the illumination of the red light source 21 is within the range of 1 to 1+X, the opening / closing member 4 is driven to move from the first position to the second position; otherwise, it remains in the first position. Similarly, the opening / closing members 4 corresponding to other color ink canisters 11 can be controlled in this manner. This method ensures that only ink in ink refill containers 3 that meet the detection conditions inserted into the slot 121 can be injected into the ink canister 11, effectively preventing incorrect filling.

[0106] To improve the accuracy of the detection, multiple light sources 21 can be used for detection. For example, an ink refill container 3 inserted into the slot 121 of the black ink can 11 is allowed to move from the first position to the second position only if the information output under the illumination of at least two of the red light source 21, blue light source 21, and green light source 21 all meet the preset information.

[0107] The above technical solutions can prevent users from accidentally filling the ink, making the operation more convenient. Compared with the design that distinguishes ink colors by matching the shape of the positioning part 35 with the shape of the slot 121, the ink refill container 3 using the technical solution of this application can eliminate the positioning part, making the structure simpler. The shape of the ink refill container 3 that can accommodate different colors of ink can be the same, which is conducive to the universality of the ink refill container 3.

[0108] Furthermore, the design of distinguishing ink colors by matching the shape of the positioning part 35 with the shape of the slot 121 can effectively prevent such errors from occurring when the ink refill container 3 is filled with the wrong type of ink.

[0109] The technical solution of this application can directly detect the ink in the ink refill container 3, thereby enabling strict control over the ink filled into the ink tank 11 and effectively preventing the incorrect filling of different types of ink or the filling of inferior ink into the ink tank 11. For example, even if the ink refill container, which should be filled with black ink, is filled with ink of other colors or types, it is not a problem, because the sensor unit of this application is designed to detect ink. If the information output by the photoelectric conversion device does not meet the preset conditions, filling is not allowed.

[0110] Furthermore, a switch for controlling the start and stop of the sensor unit can be installed in the slot 121. Correspondingly, a trigger mechanism can be installed on the ink refill container 3. When the ink refill container 3 is inserted into the slot 121, the trigger mechanism activates the switch, thereby starting the sensor unit. This design allows the sensor unit to automatically shut down when the ink refill container 3 is not inserted, reducing the usage time of the sensor unit, increasing its lifespan, and avoiding power consumption.

[0111] Example 2

[0112] The shape, structure, and working principle of the printer, printing material holding unit 1, and ink refill container 3 in this embodiment are basically the same as those in Embodiment 1. The similarities will not be repeated here. The differences between this embodiment and Embodiment 1 will be described below.

[0113] Reference Figure 12 As shown, Figure 12The diagram illustrates the mating relationship between the ink refill container 3 and the ink filling part 12. In this embodiment, the opening / closing member 204 is located below the injection port 13. Specifically, the opening / closing member 204 includes a blocking part 2043 and a connecting part 2042. The blocking part 2043 is located within the flow channel 131 communicating with the injection port 13 and can block the passage of ink. The blocking part 2043 can be a sealing rubber stopper to seal the injection port 13. A chamber 132 is provided on one side of the flow channel 131 communicating with the injection port 13. The chamber 132 is recessed from one side of the flow channel 131. The connecting part 2042 is connected to the blocking part 2043 and is partially located within the chamber 132. An adsorption unit 61 of the position control device 6 is provided below the chamber 132. The adsorbed body 64 is located above the adsorption unit 61 and is connected to the connecting part 2042.

[0114] The reset mechanism 5 is a compression spring. One end of the compression spring is sleeved in a spring mounting part in the flow channel 131, and the other end presses against the opening and closing member 204 to force the blocking part 2043 of the opening and closing member 204 to be in the position of blocking the sealing injection port 13.

[0115] The opening / closing member 204 is movable between a first position and a second position. When the opening / closing member 204 is in the first position, it blocks the ink refill container 3 from communicating with the interior of the ink tank 11. When the opening / closing member 204 is in the second position, it allows the ink refill container 3 to communicate with the receiving chamber 111 of the ink tank 11. Specifically, in this embodiment, the opening / closing member 204 is movable within the flow channel 131 along the Z-axis direction between a first position and a second position. The first position is where the blocking portion 2043 of the opening / closing member 204 seals the injection port 13, and the second position is where the opening / closing member 204 opens the injection port 13.

[0116] When the ink refill container 3 is not inserted into the ink filling part 12, the opening and closing member 204 is in the first position (e.g., Figure 12 (as shown in the figure), the blocking part 2043 seals the injection port 13 to prevent ink in the ink replenisher 3 from flowing into the receiving chamber 111 of the ink tank 11.

[0117] When the ink refill container 3 is inserted into the ink filling section 12, the ink tube 14 is inserted into the ink refill container 3. The ink refill container 3 is fully inserted, but because the injection port 13 is sealed and blocked by the blocking part 2043, the ink in the ink refill container 3 cannot enter the ink tank 11, that is, the ink refill container 3 and the receiving chamber 111 of the ink tank 11 cannot communicate. At this time, the sensor unit detects the ink in the detection section 36. When the detected ink characteristics meet the preset value, the processing unit controls the position control device 6 to operate, causing the opening and closing member 204 to move from the first position to the second position, that is, to move downward to the second position. At this time, the blocking part 2043 opens the injection port 13, and the ink refill container 3 communicates with the receiving chamber 111 inside the ink tank 11. The ink in the ink refill container 3 can enter the receiving chamber 111 of the ink tank 11, thereby completing the ink filling.

[0118] Furthermore, if the processing unit determines that the ink characteristics of the ink refill container do not conform to the preset information, the opening / closing member 204 cannot move from the first position to the second position, and the printer's display or indicator light prompts the user to replace the ink refill container type 3.

[0119] Example 3

[0120] The shape, structure, and working principle of the printer, printing material holding unit 1, and ink refill container 3 in this embodiment are basically the same as those in Embodiment 1 or Embodiment 2. The same parts will not be repeated. The differences between this embodiment and Embodiment 1 or Embodiment 2 are described below.

[0121] Reference Figure 13 As shown, in this embodiment, the light source 21 and the photoelectric conversion device 22 are disposed on the same side of the slot 121. Specifically, the light source 21 and the photoelectric conversion device 22 are disposed on the left side wall 126 of the first slot 122. Correspondingly, the ink refill container 3 can only have a detection window 37 on one side of the ink cavity 361, and both the light source 21 and the photoelectric conversion device 22 are located on the side of the ink cavity 361 where the detection window 37 is provided.

[0122] When the ink refill container 3 is inserted into the ink filling section 12, the light source 21 shines light into the detection window 37. The photoelectric conversion device 22 detects the light intensity characteristics reflected from the detection window 37 and outputs a corresponding signal, enabling the processing unit to determine the ink characteristics of the ink refill container based on the output signal of the photoelectric conversion device 22.

[0123] Optionally, the light source 21 may also include a light guide 211 for guiding light, and the photoelectric conversion device 22 may be a linear sensor. Specifically, the photoelectric conversion device 22 may be a linear image sensor composed of photoelectric conversion elements arranged along a predetermined direction (such as the Z-axis direction). The linear image sensor may be a sensor composed of photoelectric conversion elements arranged in a single column, or it may be a sensor composed of photoelectric conversion elements arranged in two or more columns. By using a linear image sensor, multiple output signals based on multiple photoelectric conversion elements are obtained. Therefore, it is possible not only to infer ink characteristics and the presence or absence of ink IK, but also to infer the position of the interface or whether the ink filling process is complete.

[0124] Alternatively, depending on the location of the sensor unit, the detection window 37 can also be positioned at other locations on the ink outlet section, such as... Figure 14 As shown, the detection window 37 is located above the ink outlet 33 and the positioning part is eliminated. The positions of the corresponding light source 21 and photoelectric conversion device 22 are adjusted accordingly, and can be in positions corresponding to the detection window 37.

[0125] Example 4

[0126] This application also discloses an ink filling method applicable to the printer, printing material holding unit, and ink replenishment container in the foregoing embodiments. The ink filling method provided in this embodiment specifically includes the following steps:

[0127] S101. Align the ink outlet of the ink refill container with the ink filling section and insert it.

[0128] Specifically, align the ink outlet of the ink refill container with the slot of the ink filling section and insert it into the slot.

[0129] S102. Detect the light quantity characteristics of the detection unit using a light source and a photoelectric conversion device, and output the corresponding information through the photoelectric conversion device.

[0130] Specifically, the light emitted by the light source illuminates the detection window of the detection unit, and the photoelectric conversion device receives the light reflected or transmitted from the detection window of the detection unit, and outputs corresponding information based on the characteristics of the received light quantity.

[0131] S103. After processing the information output by the photoelectric conversion device, the processing unit compares it with the preset ink filling conditions. If the comparison is successful, step S104 is executed; otherwise, step S105 is executed.

[0132] S104. The opening and closing parts are controlled by the processing unit to move from the first position to the second position.

[0133] Specifically, the control mechanism moves the opening and closing component from the first position to the second position, so that the ink refill container is connected to the ink tank, and the ink in the ink refill container can be injected into the ink tank.

[0134] S105. The processing unit controls the opening and closing components to remain in the first position, and outputs error information at the same time.

[0135] Specifically, the control opening and closing part remains in the first position, preventing the ink refill container from connecting with the ink tank, and the printer prompts an installation error. At this point, the user needs to reinstall the correct ink refill container and repeat the above steps S102-S103 until step S104 is reached.

[0136] Through the above steps, this application can use an ink refill container to add ink to the printing material holding unit in the printer, and can ensure that when the ink in the ink refill container does not match the ink required by the printer, the connection between the ink tank and the ink refill container is restricted to prevent ink from flowing into the ink tank and to prevent the addition of the wrong ink.

[0137] Furthermore, to determine whether the ink in the ink refill container has been completely filled into the ink canister, the following steps may be included after step S104:

[0138] S106: At preset intervals, the light intensity characteristics at the detection window are detected once using a light source and a photoelectric conversion device, and the corresponding information is output through the photoelectric conversion device.

[0139] S107: After processing the output information of the photoelectric conversion device, the processing unit compares it with the preset stop conditions. If the comparison is successful, step S108 is executed; otherwise, step S106 is returned.

[0140] S108: The processing unit outputs ink filling completion information.

[0141] Specifically, the preset stop-fill condition in step S107 can be a preset value. When the difference between the value output by the photoelectric conversion device and the previous output value is equal to or approximately equal to the preset value, it is determined that the preset stop-fill condition is not met; when it is greater than the preset value, it is determined that the stop-fill condition is met. For example, when the ink in the ink refill container is not completely filled into the ink tank, its brightness is relatively dim. When the ink in the ink refill container is completely filled into the ink tank, its brightness is relatively bright because there is a lack of ink at the detection unit. By comparing the brightness difference between the two measurements, it can be determined whether the ink is completely filled.

[0142] In this embodiment, the ink filling method specifically includes aligning the ink outlet of the ink replenishment container with the injection port of the printer; and then controlling the opening and closing mechanism based on the information detected by the photoelectric conversion device to control whether ink is filled. This ensures that the correct ink is added to the printer, avoiding the mixing of inks of different colors or types.

[0143] Example 5

[0144] The shape and structure of the printer, printing material holding unit 1, and ink refill container 3 in this embodiment are basically the same as those in Embodiment 1. The similarities will not be repeated here. The differences between this embodiment and Embodiment 1 will be described below.

[0145] Reference Figure 15 , Figure 16-1 , Figure 16-2 As shown, the detection unit 5036 in this embodiment omits the detection window 37 compared to the detection unit 36 ​​in Embodiment 1. The detection unit 5036 in this embodiment is opaque and can block light. A light source 21 is provided on the left side wall 126 of the first groove 122, and a photodetector is provided on the right side wall 127 of the first groove 122. The light source 21 illuminates the photodetector (which may be a photoelectric conversion device), and the photodetector outputs a high-level signal.

[0146] When ink needs to be refilled into the ink tank 11, the user inverts the ink refill container 3, aligning the central axis of the ink outlet 33 of the ink refill container 3 with the central axis of the inlet 13 of the ink tank 11. At this point, the user inserts the ink refill container 3, held in hand, into the slot 121. In this state, the ink refill container 3 is in a third position blocked by the blocking part 43 (e.g., ...). Figure 16-1 At this time, the ink outlet 33 of the ink replenishment container 3 is above or just in contact with the injection port 13, and the ink replenishment container 3 cannot communicate with the inside of the ink tank 11.

[0147] During the process of inserting the ink refill container 3 from the outside to the third position, since the light source 21 is blocked by the detection unit 5036, the control unit in the light sensor will detect the change in the output signal (from light to no light), that is, the output signal of the light sensor changes from a high-level signal to a low-level signal (e.g., ...). Figure 17 As shown, the line on the upper side represents a high-level signal, and the line on the lower side represents a low-level signal. At this time, the processing unit determines that it is consistent with the mark in the storage indicator, indicating that an ink replenishment container 3 has been installed.

[0148] Once an ink refill container 3 is installed, the processing unit will receive a signal. At this time, the processing unit controls the electromagnetic control device to make the adsorption unit 61 and the adsorbed body 64 attract each other. The opening and closing member 4 moves from the first position to the second position, the blocking part 43 of the opening and closing member 4 disengages from the ink refill container 3, and the ink refill container 3 moves from the third position to the fourth position. At this time, the ink refill container 3 is successfully installed.

[0149] In the fourth position (e.g.) Figure 16-2 The positioning part of the ink refill container 3 abuts against the bottom 125 of the slot 121 of the ink tank 11, and the detection part 5036 abuts against the bottom 125 of the slot 121 of the ink tank 11 (or it may not abut). The ink tube 14 is inserted into the ink outlet, which opens the valve 34 of the ink refill container 3. As a result, the ink outlet 33 of the ink refill container 3 is connected to the ink tube 14, thereby allowing ink to be replenished from the ink refill container 3 into the ink tank 11. Typically, in this embodiment, the ink tube 14 has two flow paths, one of which functions as an ink flow path for ink circulation, and the other function as an air flow path for air circulation.

[0150] According to the above implementation method, the following effects can also be obtained:

[0151] (1) When the ink refill container 3 refills ink into the ink tank 11, the positioning part abuts against the bottom 125 of the slot 121, which is part of the ink tank 11. At this time, the ink refill container 3 is in a stable position in the direction intersecting the direction of insertion into the ink tank 11. Therefore, the valve 34 is opened in the position relative to the ink tank 11, making it easy to refill ink. Thus, ink can be properly refilled into the ink tank 11.

[0152] (2) The shape of the detection part 5036 on the ink refill container 3 is not strictly limited, as long as it can block the light from the light source 21 from shining on the photodetector during installation. This makes the design of the ink refill container 3 simpler and more versatile.

[0153] (3) By setting a light sensor on the ink tank 11 and a detection unit 5036 on the ink replenishment container 3, it is possible to detect whether the ink replenishment container 3 is installed in place.

[0154] Correspondingly, this application also discloses an ink filling method, which specifically includes the following steps:

[0155] S201. Align the ink outlet of the ink refill container with the ink filling section and insert it.

[0156] Specifically, align the ink outlet of the ink refill container with the slot of the ink filling section and insert it into the slot.

[0157] S202. The installation status of the ink refill container is detected by using a light source and a photodetector, and the corresponding level signal is output by the photodetector.

[0158] Specifically, the light emitted by the light source is detected by a light sensor to determine whether the light is blocked by the detection unit, thereby determining whether the ink refill container is installed correctly.

[0159] S203. After processing the level signal output by the optical sensor, the processing unit compares it with the preset conditions. If the comparison is successful, step S204 is executed; otherwise, step S205 is executed.

[0160] S204, The processing unit controls the opening and closing parts to move from the first position to the second position.

[0161] Specifically, the control mechanism moves the opening and closing element from the first position to the second position, so that the ink replenishment container is connected to the ink tank, and the ink in the ink replenishment container can be injected into the ink tank.

[0162] S205 The processing unit controls the opening and closing parts to remain in the first position, and outputs error information at the same time.

[0163] Specifically, the control opening and closing mechanism remains in the first position, preventing the ink refill container from connecting with the ink tank, and the printer displays an installation error message. At this point, the user needs to reinstall the correct ink refill container and retest according to steps S202-203 as described above until step S204 is reached.

[0164] Through the above steps, this embodiment ensures that the ink refill container can be correctly installed, enabling the ink refill container to refill the printing material receiving unit in the printer.

[0165] In this embodiment, the ink filling method specifically includes aligning the ink outlet of the ink refill container with the ink inlet of the printer; and then controlling the opening and closing mechanism based on the information detected by the light detection sensor to control whether ink is filled, thus ensuring that the ink refill container is correctly installed.

[0166] Example 6

[0167] The shape and structure of the printer, printing material holding unit 1, and ink refill container 3 in this embodiment are basically the same as those in embodiment 5. The similarities will not be repeated. The differences between this embodiment and embodiment 5 will be described below.

[0168] The main difference between this embodiment and Embodiment 5 is that the detection section 6036 of the ink refill container 3 used in the printer described above is provided with a light-transmitting identification hole 6037, which allows light to pass through. In this embodiment, the number of light-transmitting identification holes 6037 on the detection section 6036 of the ink refill container 3 containing inks with different characteristics is different, thereby distinguishing inks with different characteristics. Ink characteristics refer to ink color or type; the following description uses color as an example.

[0169] Reference Figure 18 As shown, 18-a shows that the detection section 6036 of the ink refill container 3 containing black ink has a light-transmitting identification hole 6037; 18-b shows that the detection section 6036 of the ink refill container 3 containing cyan ink has two light-transmitting identification holes 6037, which are arranged at intervals in the insertion direction; 18-c shows that the detection section 6036 of the ink refill container 3 containing red ink has three light-transmitting identification holes 6037, which are arranged at intervals in the insertion direction; 18-d shows that the detection section 6036 of the ink refill container 3 containing yellow ink has four light-transmitting identification holes 6037, which are arranged at intervals in the insertion direction. The ink refill process of the ink refill container 3 containing black ink will be described below as an example.

[0170] Reference Figure 19 As shown, Figure 19 -a is a diagram showing the relationship between the ink refill container 3, the opening / closing component 204, and the ink tube when the ink refill container is inserted into the slot and in the third position. Figure 19 -b is a diagram showing the relationship between the ink refill container, the opening / closing mechanism, and the ink tube when the ink refill container is in the fourth position in the slot. During the insertion of the ink refill container 3 into the slot 121 to the third position, the detection unit 6036 first blocks the light from the light source 21, causing the signal output by the photodetector to change from a high level to a low level. When the light passes through the light-transmitting identification hole 6037, the photodetector receives the light again, causing its output signal to change from a low level to a high level. As the ink refill container 3 is further inserted, the light from the light source 21 is again blocked by the detection unit 6036, causing the photodetector's output signal to change from a high level to a low level. The signal output changes are as follows: Figure 20 As shown in -a, the upper horizontal line represents a high-level signal, and the lower horizontal line represents a low-level signal. Similarly, during the process of inserting the ink refill container containing other colored inks into the slot to the third position, the signal output by the photodetector is referenced... Figure 18 and Figure 20 , Figure 18 -a corresponds to Figure 20 -a, Figure 18 -b corresponds to Figure 20 -b and 18-c correspond to Figure 20 -c, 18-d correspond to Figure 20 -d.

[0171] When the output signal of the optical sensor matches the mark in the storage indicator during the process of inserting the ink refill container 3 into the slot 121 to the third position, the processing unit controls the opening and closing member 4 to move from the first position to the second position, and the ink refill container 3 to move from the third position to the fourth position, thereby completing the ink filling.

[0172] Optionally, the shape and size of the light-transmitting identification hole 6037 are not strictly limited, and its placement is limited by the positions of the light source 21 and the light sensor. There are many variations depending on the positions of the light source 21 and the light sensor. The number of light-transmitting identification holes 6037 can also vary, as long as the difference in the signal output by the light sensor during the insertion of each ink refill container 3 into the slot is sufficient to distinguish ink refill containers containing different colors of ink.

[0173] Optionally, the number of light-transmitting identification holes 6037 can be multiple, or it can be a single hole, such as... Figure 18 As shown, 18-a1 to 18-d1 represent four detection sections 6036 of ink refill containers 3 containing different colored inks, each with a light-transmitting identification hole 6037. However, the length of each light-transmitting identification hole 6037 in the insertion direction is different. For example, 18-a1 has a light-transmitting identification hole 6037 on the detection section 6036 containing black ink, 18-b1 has a light-transmitting identification hole 6037 on the detection section 6036 containing blue ink, 18-c1 has a light-transmitting identification hole 6037 on the detection section 6036 containing red ink, and 18-d1 has a light-transmitting identification hole 6037 on the detection section 6036 containing yellow ink. The length of the light-transmitting identification holes 18-a1 to 18-d1 increases sequentially in the insertion direction. The signal change diagrams output by the corresponding optical sensors during the insertion of the four ink refill containers 3 into the slots are shown below. Figure 20 20-a1 to 20-d1. Specifically, 18-a1 is the detection unit of the ink refill container that holds black ink. During the insertion of the ink refill container into the ink filling section, the signal output by the corresponding light detection sensor is as follows: Figure 20Similarly, 18-b1 corresponds to 20-b1, 18-c1 corresponds to 20-c1, and 18-d1 corresponds to 20-d1. Therefore, ink refill containers 3 of different colors of ink can be distinguished according to the different output signals of the optical sensor. It should be noted that the horizontal line on the upper side represents a high-level signal, and the horizontal line on the lower side represents a low-level signal.

[0174] Because the number of light-transmitting identification holes 6037 on the detection section 6036 of different colored ink refill containers 3 is different, or the size of the light-transmitting identification holes 6037 is different, once an ink refill container 3 of a different color is inserted into a mismatched ink tank 11 slot 121, for example, inserting an ink refill container 3 containing black ink into the ink filling section of an ink tank 11 containing red ink, at this time, the output signal detected by the control unit in the light detection sensor in the slot 121 corresponding to the ink tank 11 containing red ink is inconsistent with the mark in the storage indication (i.e., the preset information), which indicates an installation error. The opening and closing part 4 cannot be opened, the ink refill container 3 will not be able to reach the fourth position, and the ink cannot be filled.

[0175] In addition to achieving the technical effects described in Embodiment 5, the technical solution of this embodiment can also achieve the following effects:

[0176] (1) By providing a light-transmitting identification hole 6037 on the detection unit 6036, it can be ensured that the ink replenishment container 3 is installed in the ink tank 11 in the correct installation posture, preventing reverse insertion.

[0177] (2) By setting different numbers or different sizes of light-transmitting identification holes 6037 on the ink refill container 3 that contains ink of different colors, it can be ensured that the ink refill container 3 is correctly installed into the ink canister 11 of its corresponding color, and misinsertion can be prevented.

[0178] Alternatively, the ink refill container 3 of this embodiment can be applied to the printer of embodiment two. The main difference is that the position of the opening and closing part 4 is different. The ink refill container 3 can be installed into the bottom of the slot 121 at once.

[0179] Example 7

[0180] The shape and structure of the printer, printing material holding unit 1, and ink refill container 3 in this embodiment are basically the same as those in Embodiments 5 and 6. The similarities will not be repeated. The differences between this embodiment and Embodiments 5 and 6 will be described below.

[0181] Reference Figure 21As shown, in this embodiment, the light-transmitting identification hole 7037 on the ink refill container 3, which holds inks with different characteristics (including ink color and type; this embodiment uses color as an example for description), is located at different positions on the side of the detection unit 7036. For example, Figure 21 -a The detection section 7036 of the ink refill container 3, which contains black ink, is provided with a light-transmitting identification hole 7037. Figure 21 -b is a light-transmitting identification hole 7037 provided on the detection part 7036 of the ink refill container 3 that contains blue ink. Figure 21 -c indicates that a light-transmitting identification hole 7037 is provided on the detection unit 7036 of the ink refill container 3 that contains red ink. Figure 21 -d indicates that a light-transmitting identification hole 7037 is provided on the detection section 7036 of the ink refill container 3 containing yellow ink. Specifically, assuming that the detection sections 7036 of the ink refill containers 3 containing different colored inks are stacked, the light-transmitting identification holes 7037 do not overlap. Alternatively, the detection sections 7036 of the ink refill containers 3 containing different colored inks are stacked, and the light-transmitting identification holes 7037 are spaced apart along the Y-axis when the ink refill container is inserted into the slot. Correspondingly, the positions of the light sensor and the light source 21 on the ink can 11 containing different colored inks are different; specifically, the positions of the light sensor and the light source 21 correspond to the positions of the light-transmitting identification holes 7037 on the ink refill container 3. When an ink refill container 3 whose ink color does not match that of the ink can 11 is inserted into the slot 121 of the ink can 11, the light-transmitting identification hole 7037 on the ink refill container 3 will not be located in the optical path of the light source 21 and the light sensor. Only when an ink refill container 3 whose ink color matches that of the ink can 11 is inserted into the slot 121 of the ink can 11 will the light-transmitting identification hole 7037 on its detection part 7036 be located in the optical path of the light source 21 and the light sensor.

[0182] For example, in the case of Figure 21 During the process of inserting the ink refill container of -a into the slot 121 of the ink canister 11 containing black ink, refer to Figure 22 As shown, the output signal of the optical sensor changes from a high level signal to a low level signal and then back to a high level signal. When the ink refill container 3 reaches the third position, the light emitted by the light source 21 enters the photoelectric conversion device through the light-transmitting identification hole 7037. The processing unit determines that the output signal of the photoelectric conversion device is consistent with the mark in the storage indication (i.e., it conforms to the preset information), indicating that the inserted ink refill container 3 matches the ink tank 11. The ink refill container 3 is allowed to move from the third position to the fourth position, thereby completing the ink filling.

[0183] Because the positions of the light-transmitting identification holes 7037 on the detection section 7036 of the ink refill containers 3 that hold different colored inks are different, the corresponding positions of the light sensor and the light source 21 are also different. Once an ink refill container 3 holding a different colored ink is inserted into the ink filling section 12 of a non-corresponding ink can 11, for example, when an ink refill container 3 that does not hold black ink is inserted into the slot 121 corresponding to an ink can holding black ink, because its light-transmitting identification hole 7037 does not correspond to the light source 21 and the light sensor, the output signal of the light sensor during insertion will be as follows: Figure 23 As shown, the output signal of the optical sensor changes from a high level to a low level and remains low thereafter. At this time, the processing unit determines that the output signal of the optical sensor does not conform to the preset information, and the opening / closing member 4 cannot move from the first position to the second position, thus preventing the ink refill container 3 from filling. It should be noted that... Figure 22 and Figure 23 The horizontal line at the top represents a high-level signal, and the horizontal line at the bottom represents a low-level signal.

[0184] For example, when the ink refill container 3 containing black ink is inserted into the slot 121 of the ink can 11 containing red ink, the light path of the light source 21 is blocked by the detection unit 7036, and the output signal changes from a high-level signal to a low-level signal, which is inconsistent with the mark in the storage indicator. This indicates that the inserted ink refill container 3 is not the same color as the ink can 11, and the opening and closing part 4 cannot move to the second position, so the ink cannot be filled.

[0185] According to the above embodiments, the beneficial effects are the same as those of Embodiment Six.

[0186] Alternatively, the ink refill container 3 of this embodiment can be applied to the printer of embodiment two. The main difference is that the position of the opening and closing parts is different. The ink refill container 3 can be installed into the bottom 125 of the slot 121 at one time, and the processing unit can easily control the movement of the opening and closing parts.

[0187] When the ink refill container 3 is inserted into the slot 121 of the ink tank 11, the ink refill container 3 is installed into the bottom 125 of the slot 121 in one go. At this time, the positioning part 35 abuts against the bottom 125 of the slot 121, the detection part 7036 is inserted into the ink filling part, and the light-transmitting identification hole 7037 on it corresponds to the position of the light source 21 and the light detection sensor. The ink tube 14 is inserted into the ink outlet 33 and the valve 34 is opened. Because the injection port 13 is blocked by the opening and closing part 204, no ink is filled into the ink tank at this time.

[0188] When the output signal of the optical sensor matches the indicator in the storage indication, it indicates that the inserted ink refill container 3 is compatible with the ink tank 11. The opening / closing member 204 moves from the first position to the second position, the injection port 13 is opened, and the ink in the ink refill container can be normally filled into the ink tank. When the output signal of the optical sensor does not match the indicator in the storage indication, it indicates that the ink refill container 3 is incorrectly installed, and the ink in the ink refill container cannot be filled into the ink tank.

[0189] This embodiment also achieves the following beneficial effects:

[0190] (1) Because the ink refill container 3 is inserted upside down into the ink filling section of the ink tank 11, some ink may flow out from the ink outlet 33 during the inversion process and drip into the ink filling section, contaminating it. In this embodiment, by setting such an opening and closing member 204, the ink refill container 3 can be installed in place in one go. Even if ink flows out from the ink outlet 33, it can directly enter the flow path of the ink tank 11, reducing ink dripping and contamination of the ink filling section.

[0191] (2) The ink refill container 3 is installed in one go, which can reduce the insertion deviation of the ink refill container 3 during the installation process.

[0192] (3) When the ink refill container 3 is inserted into the ink filling part of the ink tank 11, the valve 34 of the ink outlet 33 is directly inserted into the ink tube of the ink tank 11 to prevent the ink outlet 33 from colliding with other components and to prevent the ink outlet 33 from being damaged or ink from adhering to other components.

[0193] Based on embodiments 6 and 7 above, this application also discloses an ink filling method applicable to the aforementioned printer, printing material holding unit, and ink refill container. The ink filling method provided in this embodiment specifically includes the following steps:

[0194] S301. Align the ink outlet of the ink refill container with the ink filling section and insert it.

[0195] Specifically, align the ink outlet of the ink refill container with the slot of the ink filling section and insert it into the slot.

[0196] S302. The light quantity characteristics of the detection unit are detected by using a light source and a light sensor, and the corresponding information is output through the light sensor.

[0197] S303. After processing the output information of the optical sensor, the processing unit compares it with the preset ink filling conditions. If the comparison is successful, step S304 is executed; otherwise, step S305 is executed.

[0198] S304, The processing unit controls the opening and closing member to move from the first position to the second position.

[0199] Specifically, the control mechanism moves the opening and closing element from the first position to the second position, so that the ink replenishment container is connected to the ink tank, and the ink in the ink replenishment container can be injected into the ink tank.

[0200] S305 The processing unit controls the opening and closing parts to remain in the first position, and outputs error information at the same time.

[0201] Specifically, the control opening and closing mechanism remains in the first position, preventing the ink refill container from connecting to the ink tank, and the printer displays an installation error message. At this point, the user needs to reinstall the correct ink refill container and retest according to steps S301-S303 until step S304 is reached.

[0202] Through the above steps, this embodiment ensures that the ink refill container can be correctly installed, enabling the ink refill container to refill the printing material receiving unit in the printer.

[0203] In this embodiment, the ink filling method specifically includes aligning the ink outlet of the ink refill container with the ink inlet of the printer; and then controlling the opening and closing mechanism based on the information detected by the light detection sensor to control whether to fill the ink, thus ensuring the correct installation of the ink refill container and the correct filling of ink.

[0204] Example 8

[0205] The shape and structure of the printer, printing material holding unit, and ink refill container in this embodiment are basically the same as those in Embodiments 1 to 4. The similarities will not be repeated here. The differences between this embodiment and Embodiment 1 will be described below.

[0206] This embodiment of the printer eliminates the sensor unit and the detection unit located on the ink refill container. In this embodiment, a non-electronic, non-traceable barcode is provided on the ink refill container, and a barcode reader is provided in the corresponding slot. The barcode stores fixed value information related to the ink cartridge. When the ink refill container is inserted into the slot, the barcode reader reads the information on the barcode. If it matches the preset information, the opening / closing member moves from the first position to the second position, completing the ink refill; otherwise, the opening / closing member does not move, and the ink cannot be filled.

[0207] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An inkjet printer, comprising a processing unit, a plurality of ink tanks, and an ink refill container, characterized in that, The ink cartridge includes: The tank body is equipped with a compartment for holding printing materials; An ink filling section, connected to the tank body, is used for inserting an ink refill container so that the ink refill container can fill the tank body with printing material through the ink filling section; A light source, disposed in the ink filling section, is used to illuminate the ink filling container with light during the insertion of the ink refill container into the ink filling section; A photoelectric conversion device is disposed in the ink filling part for detecting the light quantity characteristics reflected or transmitted from the ink replenishment container. The processing unit is used to determine the printing material characteristics of the ink replenishment container based on the light quantity characteristics detected by the photoelectric conversion device. An opening / closing element, disposed in the ink filling section, is used to change the connectivity between the ink replenishment container and the receiving chamber; When the processing unit determines that the printing material characteristics of the ink replenishment container match the preset printing material characteristics of the corresponding ink can based on the light quantity characteristics detected by the photoelectric conversion device, it controls the ink replenishment container to communicate with the receiving chamber through the opening and closing component. The ink refill container includes an ink outlet and a detection section. The ink outlet has a flow channel cavity, and the detection section has a light-transmitting identification hole for characterizing the printing material properties in the corresponding ink refill container. Alternatively, the detection section includes a light-transmitting detection window, and the detection section has an ink cavity that communicates with the flow channel cavity. The detection window is located on the side wall of the ink cavity.

2. The inkjet printer according to claim 1, characterized in that, The processing unit determines the printing material characteristics of the ink refill container based on the changes in the level signal output by the photoelectric conversion device. When the output information of the photoelectric conversion device matches the preset information, the opening and closing element maintains the connectivity between the ink replenishment container and the receiving chamber.

3. The inkjet printer according to claim 1 or 2, characterized in that, The opening / closing element is movable between a first position and a second position; When the opening and closing element is in the first position, the opening and closing element blocks the ink refill container from communicating with the receiving chamber; when the opening and closing element is in the second position, the opening and closing element allows the ink refill container to communicate with the receiving chamber. When the processing unit determines, based on the light intensity characteristics detected by the photoelectric conversion device, that the printing material characteristics of the ink refill container match the preset printing material characteristics of the corresponding ink can, the opening / closing member moves from the first position to the second position.

4. The inkjet printer according to claim 3, characterized in that, The ink filling section is provided with a slot for inserting the ink refill container, and the light source and the photoelectric conversion device are disposed in the slot.

5. The inkjet printer according to claim 4, characterized in that, The ink can also include an ink tube that can be inserted into the ink refill container, with the opening and closing element at least partially located above the ink tube.

6. The inkjet printer according to claim 5, characterized in that, The inkjet printer also includes a position control device, which is used to control the opening and closing member to move between the first position and the second position. The position control device is an electromagnetic control device, which includes an adsorption unit and an adsorbed body. The adsorption unit includes an iron core and a coil wound on the outer surface of the iron core. The adsorbed body is connected to the opening and closing member, and the adsorbed body is a magnet or an iron body. The processing unit is also used to control the on and off of the coil current.

7. An ink refill container, used in an inkjet printer as described in any one of claims 1 to 6, characterized in that, The ink refill container includes: The container body is used to hold printing material for filling the ink can; An ink outlet is provided at the end of the container body. The ink outlet has a flow channel cavity that communicates with the container body. An ink outlet is provided at the end of the flow channel cavity. The ink outlet is used to allow printing material inside the container body to flow out. A valve, wherein the valve is disposed at the ink outlet; The detection unit is located outside the ink outlet and is within the effective range of the light source and the photoelectric conversion device during the insertion of the ink refill container into the ink filling section. The detection unit is provided with a light-transmitting identification hole for characterizing the printing material properties in the corresponding ink replenishment container, or the detection unit includes a light-transmitting detection window, and the detection unit is provided with an ink cavity that communicates with the flow channel cavity, and the detection window is located on the side wall of the ink cavity.

8. The ink refill container according to claim 7, characterized in that, The ink refill container also includes a positioning part, which is disposed outside the ink outlet and is used to cooperate with the ink filling part for positioning.

9. The ink refill container according to claim 7, characterized in that, When the detection unit is provided with a light-transmitting identification hole for characterizing the printing material characteristics in the corresponding ink refill container, the number of light-transmitting identification holes provided on the detection unit of the ink refill container containing different printing materials is different, and / or the positions of the light-transmitting identification holes provided on the detection unit of the ink refill container containing different printing materials are different.

10. The ink refill container according to claim 7, characterized in that, When the detection unit includes a light-transmitting detection window, the detection unit includes two detection windows, which are located on two opposite sidewalls of the ink cavity. The light-transmitting ranges of the ink cavity on both sides where the detection windows are located at least partially overlap. The light source and the photoelectric conversion device are respectively located on both sides of the detection unit where the detection windows are located.

11. The ink refill container according to claim 7, characterized in that, When the detection unit includes a light-transmitting detection window, the detection unit includes one detection window, and the light source and the photoelectric conversion device are both located on the side of the detection unit where the detection window is located.

12. An ink filling method, wherein the method is for an application scenario of filling ink into an inkjet printer according to any one of claims 3-6 using an ink refill container as described in claim 9, characterized in that, The ink filling method includes the following steps: S101: Align the ink outlet of the ink refill container with the ink filling part and insert it; S102: Detect the light intensity characteristics of the detection unit using the light source and the photoelectric conversion device, and output corresponding information through the photoelectric conversion device; S103: After processing the output information of the photoelectric conversion device, the processing unit compares it with the preset ink filling conditions. If the comparison is successful, step S104 is executed; otherwise, step S105 is executed. S104: The processing unit controls the opening / closing member to move from the first position to the second position; S105: The processing unit controls the opening and closing member to remain in the first position, and outputs an error message at the same time.

13. An ink filling method, wherein the method is for an application scenario of filling ink into an inkjet printer according to any one of claims 3 to 6 using an ink refill container as described in claim 10 or 11, characterized in that, The method includes the following steps: S201: Align the ink outlet of the ink refill container with the ink filling part and insert it; S202: Detect the light intensity characteristics at the detection window using the light source and the photoelectric conversion device, and output corresponding information through the photoelectric conversion device; S203: After the processing unit processes the output information of the photoelectric conversion device, it compares it with the preset ink filling conditions. If the comparison is successful, step S204 is executed, followed by step S206; otherwise, step S205 is executed. S204: The processing unit controls the opening / closing member to move from the first position to the second position; S205: The processing unit controls the opening and closing member to remain in the first position, and outputs an error message at the same time; S206: At preset intervals, the light intensity characteristics at the detection window are detected once using the light source and the photoelectric conversion device, and the corresponding information is output through the photoelectric conversion device; S207: After processing the output information of the photoelectric conversion device, the processing unit compares it with the preset stop conditions. If the comparison is successful, step S208 is executed; otherwise, step S206 is returned. S208: The processing unit outputs ink filling completion information.

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