EP2524810A1 - Ink cartridge for inkjet printer - Google Patents
Ink cartridge for inkjet printer Download PDFInfo
- Publication number
- EP2524810A1 EP2524810A1 EP10826122A EP10826122A EP2524810A1 EP 2524810 A1 EP2524810 A1 EP 2524810A1 EP 10826122 A EP10826122 A EP 10826122A EP 10826122 A EP10826122 A EP 10826122A EP 2524810 A1 EP2524810 A1 EP 2524810A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ink
- cartridge
- negative pressure
- ink cartridge
- elastic component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/1752—Mounting within the printer
- B41J2/17523—Ink connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17513—Inner structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17553—Outer structure
Definitions
- the present invention relates to an ink cartridge for an ink jet printer.
- the ink cartridges of conventional ink jet printers are all provided with a negative pressure mechanism which can generate negative pressure inside the ink cartridge.
- negative pressure is generated from the beginning when the ink cartridge is used for printing and is constantly maintained until the ink is used up.
- the ink cartridge is under the state of negative pressure for a long time, the ink of a printing head can be easily sucked out to damage the printing head and further affect printing quality.
- a replaceable ink cartridge of such an ink jet printer is positioned below a printing head.
- the ink is pumped by a suction pump into an irreplaceable ink cartridge above the printing head, which is connected with a nozzle, and the ink is maintained by a negative pressure mechanism.
- the replaceable ink cartridge of such an ink jet printer only plays a role of accommodating the ink.
- this replaceable ink cartridge is a constant pressure structure, the quantity of ink is detected by a buoy inside the replaceable ink cartridge, and the buoy, due to its own weight, is incapable to detect the quantity of ink accurately when the quantity of ink is small. Therefore, the following function is configured in the program of the printer: when a sheltering part on the other side of the buoy can no longer be detected, the printer prompts the depletion of the ink after printing another 2-3ML of ink according to an internal counting device.
- a replaceable ink cartridge with an ink bag (as shown in Figure 1 ) has been invented for use with such printer.
- Such an ink cartridge has no air-conducting passage so as not to contact with the air.
- the ink bag of the ink cartridge is divided into two parts with one being used cooperatively for detection and the other one being used for accommodating the ink, and the two parts communicate with each other.
- the ink bag for detection is sealed by a silica gel film.
- the reflection for suction force is difficult to control, thereby often resulting in that the ink bag for accommodating the ink firstly shrivels and the ink bag for detection then shrivels.
- the quantity of ink inside the ink cartridge is less than 2ml when the detection component detects the depletion of the ink.
- the invention provides an ink cartridge for an ink jet printer, in order to solve the technical problem that constant negative pressure in the process of using the ink cartridge leads to the damage and deformation of the parts inside the ink cartridge which affects printing quality.
- the ink cartridge comprises a cartridge body and a detection mechanism for detecting the ink cartridge and the residual quantity of ink
- the cartridge body comprises an ink tank for storing ink, an ink outlet for supplying ink to a printing head of the printer and an air inlet
- the ink tank comprises a first ink chamber and a second ink chamber
- a first negative pressure mechanism is arranged between the first ink chamber and the second ink chamber
- the ink cartridge is characterized in that a second negative pressure mechanism is further arranged between the first ink chamber and the second ink chamber, the first negative pressure mechanism and the second negative pressure mechanism cooperatively control the ink inside the first ink chamber to be consumed preferentially than the ink inside the second ink chamber, and the second negative pressure mechanism generates negative pressure only when a certain quantity of ink inside the ink tank is reached.
- the first negative pressure mechanism may be a gravity valve and the second negative pressure mechanism may be a buoyancy valve.
- the gravity valve comprises a gravity valve base and a gravity valve core with a density higher than that of the ink.
- the buoyancy valve may comprise a buoyancy valve base and a buoyancy valve core with a density lower than that of the ink.
- the detection mechanism for detecting the ink cartridge and the residual quantity of ink comprises a first detection component cooperative with a first sensor on the printer, a second detection component cooperative with a second sensor on the printer and a soft support cap communicating with the second ink chamber on the cartridge body, the second detection component comprises a movable rod member and a fixed shaft arranged at the cartridge body, the movable rod member is rotatably connected with the cartridge body through the fixed shaft, the soft support cap is positioned at a corresponding position where the movable rod member droops under gravity and comes into contact with the movable rod member when a position adjusting member of the movable rod member overtakes the soft support cap.
- the front wall of the cartridge body, on which the ink outlet is arranged, is provided with an elastic component, one end of the elastic component is fixedly connected with a front wall of the cartridge body, the other end of the elastic component is capable of reach the wall of an accommodation space of the ink cartridge of the printer by bending the elastic component, the elastic component is provided with a support position, and the movable rod member is supported by the support position on the elastic component.
- a negative pressure value under control of the gravity valve is larger than a collapsing resistance value of the soft support cap.
- the support position is an opening formed on the elastic component.
- the front wall of the cartridge body, on which the ink outlet is arranged, is provided with a clamping position, and one end of the elastic component is fixedly connected with the cartridge body through the clamping position.
- the second negative pressure mechanism generates negative pressure when a certain quantity of ink inside the ink tank is used for printing, and negative pressure inside the ink tank is not generated until the used ink inside the ink tank reaches a certain quantity, i.e., negative pressure is generated only in case that the residual quantity of ink is small in the end, therefore the technical problem that constant negative pressure in the process of using the ink cartridge leads to the damage and deformation of the parts inside the ink cartridge which impact on printing quality can be avoided.
- more accurate control is achieved by adopting the soft support cap for warning about the residual quantity of ink, and the manufacturing technology is simple.
- the space for buoy is saved, more ink can be accommodated, thereby saving printing cost of users.
- Figure 1 is a schematic diagram of a conventional ink cartridge which may generate printing defects.
- Figure 2 is a schematic diagram of the ink cartridge according to an embodiment of the invention.
- Figure 3 is a schematic diagram of the state of the ink cartridge at the beginning of installing the ink cartridge into the printer in the invention.
- Figure 4 is a schematic diagram of the state of the ink cartridge in case of sealing the buoyancy valve during printing in the invention.
- Figure 5 is a schematic diagram of the collapsing state of the soft support cap of the invention.
- Figure 6 is a schematic diagram of the state of the ink cartridge when the gravity valve is opened in the invention.
- Figure 7 is a schematic diagram of the cooperative ink cartridge housing in the invention.
- Figure 8 is a schematic diagram of the installation of the ink cartridge provided by the invention.
- Figure 9A is a schematic diagram of the buoyancy valve base and the gravity valve base inside the ink cartridge in the invention.
- Figure 9B is a sectional view of the buoyancy valve base and the gravity valve base inside the ink cartridge in the invention.
- Figure 9C is a schematic diagram of the soft support cap inside the ink cartridge in the invention.
- Figure 9D is a sectional view of the soft support cap inside the ink cartridge in the invention.
- Figure 10 is a schematic diagram of fluid flowing when the buoyancy valve is opened and the gravity valve is sealed in the invention.
- Figure 11 is a schematic diagram of fluid flowing when the buoyancy valve is sealed and the gravity valve is opened in the invention.
- the ink cartridge for ink jet printer comprises a cartridge body 1 and a detection mechanism for detecting the ink cartridge and the residual quantity of ink.
- the cartridge body comprises an ink tank for storing ink, an ink outlet 7 for supplying ink to a printing head of the printer and an air inlet 2.
- the ink tank comprises a first ink chamber 20 and a second ink chamber 21, a gravity valve 9 and a buoyancy valve 8 are arranged between the first ink chamber 20 and the second ink chamber 21.
- the gravity valve 9 and the buoyancy valve 8 cooperatively control the ink inside the first ink chamber 20 to be used up preferentially than the ink inside the second ink chamber 21.
- a negative pressure is generated only when a certain quantity of ink inside the ink tank has been consumed for printing, and the air inlet 2 is arranged on the first ink chamber 20.
- the detection mechanism for detecting the ink cartridge and the residual quantity of ink comprises a first detection component 3 cooperative with a first sensor on the printer, a second detection component 5 cooperative with a second sensor on the printer, and a soft support cap 6 communicating with the second ink chamber and provided on the cartridge body.
- the second detection component comprises a movable rod member 5 and a fixed shaft arranged at the cartridge body, the movable rod member is rotatably connected with the cartridge body through the fixed shaft.
- the soft support cap 6 is positioned at a corresponding position where the movable rod member droops under gravity, and comes into contact with the movable rod member when a position adjusting member of the movable rod member overtakes the soft support cap.
- a front wall of the cartridge body, on which the ink outlet is arranged, is also provided with an elastic component 4, one end of the elastic component 4 is fixedly connected with the front wall of the cartridge body, the other end of the elastic component 4 can contact a wall of an accommodation space of the ink cartridge by bending the elastic component 4.
- the elastic component 4 is provided with a support position, and the movable rod member is supported by the support position on the elastic component 4.
- the support position is an opening formed on the elastic component for receiving the removable rod member.
- the front wall of the cartridge body, on which the ink outlet is arranged is provided with a clamping position, and one end of the elastic component is fixedly connected with the cartridge body through the clamping position.
- the air outside the ink cartridge enters the cartridge body 1 through the air inlet.
- the ink outlet 7 plays a role of transferring the ink inside the ink cartridge 1 to the printing head of the printer.
- the first detection component 3 performs the detection in cooperation with the first sensor 104 on the printer. After the ink cartridge is installed, the first detection component 3 blocks the light emitted from a light emitting portion of the first sensor 104, as shown in Figure 8 , so that a receiving portion of the first sensor 104 receives no light. After the detection in the printer in cooperation with the second detection component 5, successful installation detection of the ink cartridge is achieved.
- the second detection component 5 performs the detection in cooperation with the second sensor 102 on the printer. After the ink cartridge is installed, the second detection component 5 blocks the light emitted from a light emitting portion of the second sensor 102, so that a receiving portion of the second sensor 102 receives no light. After the detection in the printer in cooperation with the first detection component 3, successful installation detection of the ink cartridge is achieved, as shown in Figure 8 .
- the elastic component 4 plays a role in installation detection in cooperation with the second detection component. That is because the following states exist in the process of installing the ink cartridge into the printer:
- two sensors 102 and 104 of the printer are under the state of switching-on. While the installation of the ink cartridge is performed, light is emitted from an emitting portion of the second senor 102 and is blocked by the movable rod member 5 so as not to return to the receiving portion of the second sensor 102. Under this state the light path of the second sensor 102 is switched off, while the first sensor 104 which is not in contact with the first detection component 3 is under the state of switching-on.
- the ink cartridge As the ink cartridge is further pushed into the printer, light is emitted from the emitting portion of the second sensor 102, and the movable rod member 5 comes into contact with and is supported by the soft support cap 6 at its rear part, as shown in Figure 4 , and displacement of the movable rod member 5 stops, and now the movable rod member 5 is positioned at the detection position of the second sensor 102.
- the light emitted from the second sensor 102 is blocked by the movable rod member 5 so as not to return to the receiving portion of the second sensor 102.
- the light path of the second sensor is switched off, and the light emitted from the emitting portion of the first sensor 104 is still blocked by the first detection component 3. Therefore, the light path of the first sensor 104 is also under the state of switching-off, and the ink inlet of the printer is cooperative with the ink outlet 7 of the ink cartridge and smooth ink supply is achieved.
- the elastic component 4 supports the movable rod member 5.
- the elastic component 4 does not support the movable rod member 5 any more.
- the movable rod member 5 is supported by the soft support cap 6.
- the elastic component 4 becomes to support the movable rod member 5 once again so that the movable rod member 5 returns to its original position so as to repeat the installation process above when reinstallation is required.
- the elastic component 4 plays another role of springing the ink cartridge away from the ink cartridge housing 10 when the ink cartridge is removed from the printer. This process is as below: when the ink cartridge is installed into the ink cartridge housing 10, as shown in Figure 7 , the elastic component 4 is deformed, and the deformed elastic component 4 cannot reset after the ink cartridge housing cap 105 is closed, thus the elastic component 4 resets to push the ink cartridge away from the ink cartridge housing when the ink cartridge housing cap 105 is opened.
- the soft support cap 6 plays a role of supporting the movable rod member 5 after the ink cartridge is installed, so that the second detection component 5 is maintained at the detection position of the second sensor 102 to achieve successful installation detection, as shown in Figure 8 .
- the soft support cap 6, as shown in Figure 9C comprises: a flexible support film 61, which can support the movable rod member 5 and can collapse according to internal pressure change; a communication passage 62, which can be communicate with the ink chamber; and a soft support cap sealing rib 63, which can seal the ink chamber, as shown in Figure 9D .
- the soft support cap plays another role of cooperating with the ink depletion detection of the printer, and the ink depletion detection comprises the following process:
- the flexible support film 61 of the flexible support cap 6 due to the adjustment of the buoyancy valve 8 and the gravity valve 9 inside the ink cartridge 1, collapses under the suction action of an ink supply needle of the printer when the ink is about to be used up.
- the flexible support cap 61 no longer supports the movable rod member 5 and the movable rod member 5 continues to move under gravity to be away from the position where the light path of the second sensor 102 is blocked.
- Light is directly emitted to a light receiving element. In this case, the first sensor 104 of the printer is blocked, while the second sensor 102 is not blocked, thus the printer prompts the ink will be used up and sends a signal to the user.
- the buoyancy valve 8 and the gravity valve 9 play the role of adjusting the pressure inside the ink cartridge, so that the soft support cap 6 is caused to collapse, as shown in Figure 5 , so as to further achieve the purpose of detecting ink depletion.
- the buoyancy valve 8 comprises: a buoyancy valve base 81 as shown in Figure 9A and a buoyancy valve core 82, wherein the buoyancy valve base 81 is characterized by a valve core sealing portion 811 cooperative with the buoyancy valve core 82, a fluid passage 812 for communicating the ink chamber with the ink outlet, and a valve base sealing rib 813 capable of fixing the valve base 81 and sealing the periphery of the valve base 81; the valve core 82 is characterized by having a density lower than that of the ink and being capable of sealing the fluid passage 812 in cooperation with the valve base sealing portion 811, as shown in Figure 9B .
- the gravity valve 9 comprises: a gravity valve base 91 and a gravity valve core 92, wherein the gravity valve base 91 includes the same structural characteristics as the buoyancy valve base 81; the valve core 92 is characterized by having a density higher than that of the ink and being capable of sealing the fluid passage under certain pressure (>-3KPa) in cooperation with the valve base sealing portion, as shown in Figure 8 .
- a negative pressure value under the control of the gravity valve is larger than a collapsing resistance value of the soft support cap.
- the buoyancy valve core 82 of the buoyancy base 8 floats above the ink due to the density thereof lower than that of the ink.
- the buoyancy valve 8 is under the state of opening, and the pressure inside the ink cartridge is the same as outside pressure.
- the gravity valve core 92 of the gravity valve 9 due to the density thereof higher than that of the ink, is cooperative with the valve base sealing portion so that the gravity valve is under the state of closing.
- the flowing path of the ink is shown as the dotted line in Figure 10 .
- the level of the ink continuously descends as the ink is used for printing.
- the buoyancy valve core 82 is cooperative with the valve base sealing portion, the buoyancy valve 8 is closed. Since the gravity valve 9 is also under the state of closing, the cavity adjacent to the ink outlet is under the state of sealing. Since the ink supply needle of the printer has certain suction force, thus printing is not influenced.
- the pressure of the ink chamber communicating with the soft support cap 6 gradually decreases as the ink is used for printing.
- certain value -0.5 to -3KPa
- the flexible support film 61 of the soft support cap 6 is deformed so as not to support the second detection component 5 any more.
- the printer prompts the ink is about to be used up (2-3ml of the ink remains inside the ink cartridge at this stage).
- the ink supply needle of the printer still sucks the ink ceaselessly.
- the pressure at the ink outlet reaches certain value ( ⁇ -3KPa)
- the pressure generated by the pressure difference between atmosphere and interior of the cavity can overcome the gravity of the gravity valve core 92 of the gravity valve 9, thus the gravity valve core 92 moves away from the sealing position and the gravity valve 9 is opened.
- the air can enter through the fluid passage, and the ink chamber is communicated with the soft support cap 6, shown as Figure 6 . In this case, the fluid flows in a manner as shown in Figure 11 .
- the gravity valve 9 When the pressure inside the cavity decreases, since the gravity valve 9 is opened, the pressure interior of the cavity is inclined to be identical with external pressure (because the pressure value is a negative value, the value decreases, e.g., the previous pressure value is -70KP, while the present pressure value is -60KP), the pressure generated by the pressure difference between atmosphere and interior of the cavity cannot overcome the gravity of the gravity valve core 92 of the gravity valve 9, thus the gravity valve core 92 returns to the sealing position once again, and the gravity valve 9 is closed once again. As the ink is used, the gravity valve 9 is opened and closed ceaselessly to balance the pressure inside the cavity until the ink is used up.
- This negative pressure control manner with a high control precision can achieve accurate control of the pressure when the soft support cap 6 collapses, thereby ensuring the accuracy of ink depletion detection of the printer.
Abstract
Description
- The present invention relates to an ink cartridge for an ink jet printer.
- The ink cartridges of conventional ink jet printers are all provided with a negative pressure mechanism which can generate negative pressure inside the ink cartridge. However, negative pressure is generated from the beginning when the ink cartridge is used for printing and is constantly maintained until the ink is used up. As a result, when the ink cartridge is under the state of negative pressure for a long time, the ink of a printing head can be easily sucked out to damage the printing head and further affect printing quality.
- Another kind of ink jet printer adopts the design of non-shaft-type ink supply. A replaceable ink cartridge of such an ink jet printer is positioned below a printing head. The ink is pumped by a suction pump into an irreplaceable ink cartridge above the printing head, which is connected with a nozzle, and the ink is maintained by a negative pressure mechanism. The replaceable ink cartridge of such an ink jet printer only plays a role of accommodating the ink. However, this replaceable ink cartridge is a constant pressure structure, the quantity of ink is detected by a buoy inside the replaceable ink cartridge, and the buoy, due to its own weight, is incapable to detect the quantity of ink accurately when the quantity of ink is small. Therefore, the following function is configured in the program of the printer: when a sheltering part on the other side of the buoy can no longer be detected, the printer prompts the depletion of the ink after printing another 2-3ML of ink according to an internal counting device.
- Based on this function of the printer, a replaceable ink cartridge with an ink bag (as shown in
Figure 1 ) has been invented for use with such printer. Such an ink cartridge has no air-conducting passage so as not to contact with the air. However, since the demand of detecting the depletion of the ink of the printer needs to be met, the ink bag of the ink cartridge is divided into two parts with one being used cooperatively for detection and the other one being used for accommodating the ink, and the two parts communicate with each other. In order to meet the demand of installation detection of the ink cartridge, the ink bag for detection is sealed by a silica gel film. Due to the different sealing materials of the two parts of the ink bag, which are seldom completely identical to each other in density, toughness and the like, the reflection for suction force is difficult to control, thereby often resulting in that the ink bag for accommodating the ink firstly shrivels and the ink bag for detection then shrivels. In this case, the quantity of ink inside the ink cartridge is less than 2ml when the detection component detects the depletion of the ink. As a result, the problems about insufficient supply of ink at printing port and burnout of the printing head are generated. - The invention provides an ink cartridge for an ink jet printer, in order to solve the technical problem that constant negative pressure in the process of using the ink cartridge leads to the damage and deformation of the parts inside the ink cartridge which affects printing quality.
- In order to solve the technical problem above, one aspect of the present invention provides an ink cartridge for an ink jet printer. The ink cartridge comprises a cartridge body and a detection mechanism for detecting the ink cartridge and the residual quantity of ink, wherein the cartridge body comprises an ink tank for storing ink, an ink outlet for supplying ink to a printing head of the printer and an air inlet, the ink tank comprises a first ink chamber and a second ink chamber, a first negative pressure mechanism is arranged between the first ink chamber and the second ink chamber, the ink cartridge is characterized in that a second negative pressure mechanism is further arranged between the first ink chamber and the second ink chamber, the first negative pressure mechanism and the second negative pressure mechanism cooperatively control the ink inside the first ink chamber to be consumed preferentially than the ink inside the second ink chamber, and the second negative pressure mechanism generates negative pressure only when a certain quantity of ink inside the ink tank is reached.
- The first negative pressure mechanism may be a gravity valve and the second negative pressure mechanism may be a buoyancy valve.
- The gravity valve comprises a gravity valve base and a gravity valve core with a density higher than that of the ink.
- The buoyancy valve may comprise a buoyancy valve base and a buoyancy valve core with a density lower than that of the ink.
- The detection mechanism for detecting the ink cartridge and the residual quantity of ink comprises a first detection component cooperative with a first sensor on the printer, a second detection component cooperative with a second sensor on the printer and a soft support cap communicating with the second ink chamber on the cartridge body, the second detection component comprises a movable rod member and a fixed shaft arranged at the cartridge body, the movable rod member is rotatably connected with the cartridge body through the fixed shaft, the soft support cap is positioned at a corresponding position where the movable rod member droops under gravity and comes into contact with the movable rod member when a position adjusting member of the movable rod member overtakes the soft support cap.
- The front wall of the cartridge body, on which the ink outlet is arranged, is provided with an elastic component, one end of the elastic component is fixedly connected with a front wall of the cartridge body, the other end of the elastic component is capable of reach the wall of an accommodation space of the ink cartridge of the printer by bending the elastic component, the elastic component is provided with a support position, and the movable rod member is supported by the support position on the elastic component.
- A negative pressure value under control of the gravity valve is larger than a collapsing resistance value of the soft support cap.
- The support position is an opening formed on the elastic component.
- The front wall of the cartridge body, on which the ink outlet is arranged, is provided with a clamping position, and one end of the elastic component is fixedly connected with the cartridge body through the clamping position.
- According to the technical solution described above, as the ink tank is internally provided with a second negative pressure mechanism, the second negative pressure mechanism generates negative pressure when a certain quantity of ink inside the ink tank is used for printing, and negative pressure inside the ink tank is not generated until the used ink inside the ink tank reaches a certain quantity, i.e., negative pressure is generated only in case that the residual quantity of ink is small in the end, therefore the technical problem that constant negative pressure in the process of using the ink cartridge leads to the damage and deformation of the parts inside the ink cartridge which impact on printing quality can be avoided. In addition, more accurate control is achieved by adopting the soft support cap for warning about the residual quantity of ink, and the manufacturing technology is simple. Finally, since the space for buoy is saved, more ink can be accommodated, thereby saving printing cost of users.
-
Figure 1 is a schematic diagram of a conventional ink cartridge which may generate printing defects. -
Figure 2 is a schematic diagram of the ink cartridge according to an embodiment of the invention. -
Figure 3 is a schematic diagram of the state of the ink cartridge at the beginning of installing the ink cartridge into the printer in the invention. -
Figure 4 is a schematic diagram of the state of the ink cartridge in case of sealing the buoyancy valve during printing in the invention. -
Figure 5 is a schematic diagram of the collapsing state of the soft support cap of the invention. -
Figure 6 is a schematic diagram of the state of the ink cartridge when the gravity valve is opened in the invention. -
Figure 7 is a schematic diagram of the cooperative ink cartridge housing in the invention. -
Figure 8 is a schematic diagram of the installation of the ink cartridge provided by the invention. -
Figure 9A is a schematic diagram of the buoyancy valve base and the gravity valve base inside the ink cartridge in the invention. -
Figure 9B is a sectional view of the buoyancy valve base and the gravity valve base inside the ink cartridge in the invention. -
Figure 9C is a schematic diagram of the soft support cap inside the ink cartridge in the invention. -
Figure 9D is a sectional view of the soft support cap inside the ink cartridge in the invention. -
Figure 10 is a schematic diagram of fluid flowing when the buoyancy valve is opened and the gravity valve is sealed in the invention. -
Figure 11 is a schematic diagram of fluid flowing when the buoyancy valve is sealed and the gravity valve is opened in the invention. - In the
Figures: 1 ink cartridge 2air inlet 3first detection component 4elastic component 5second detection component 6soft support cap 7ink outlet 8buoyancy valve 9gravity valve 10ink cartridge housing 102second sensor 104first sensor 105 inkcartridge housing cap 61flexible support film 62communication passage 63 soft supportcap sealing rib 81buoyancy valve base 82buoyancy valve core 811 valvecore sealing portion 812fluid passage 813 valvebase sealing rib 91gravity valve base 92 gravity valve core. - The ink cartridge for ink jet printer, as shown in
Figure 2 , comprises acartridge body 1 and a detection mechanism for detecting the ink cartridge and the residual quantity of ink. The cartridge body comprises an ink tank for storing ink, anink outlet 7 for supplying ink to a printing head of the printer and anair inlet 2. The ink tank comprises afirst ink chamber 20 and asecond ink chamber 21, agravity valve 9 and abuoyancy valve 8 are arranged between thefirst ink chamber 20 and thesecond ink chamber 21. Thegravity valve 9 and thebuoyancy valve 8 cooperatively control the ink inside thefirst ink chamber 20 to be used up preferentially than the ink inside thesecond ink chamber 21. By means of thebuoyancy valve 8, a negative pressure is generated only when a certain quantity of ink inside the ink tank has been consumed for printing, and theair inlet 2 is arranged on thefirst ink chamber 20. - The detection mechanism for detecting the ink cartridge and the residual quantity of ink comprises a
first detection component 3 cooperative with a first sensor on the printer, asecond detection component 5 cooperative with a second sensor on the printer, and asoft support cap 6 communicating with the second ink chamber and provided on the cartridge body. The second detection component comprises amovable rod member 5 and a fixed shaft arranged at the cartridge body, the movable rod member is rotatably connected with the cartridge body through the fixed shaft. Thesoft support cap 6 is positioned at a corresponding position where the movable rod member droops under gravity, and comes into contact with the movable rod member when a position adjusting member of the movable rod member overtakes the soft support cap. A front wall of the cartridge body, on which the ink outlet is arranged, is also provided with anelastic component 4, one end of theelastic component 4 is fixedly connected with the front wall of the cartridge body, the other end of theelastic component 4 can contact a wall of an accommodation space of the ink cartridge by bending theelastic component 4. Theelastic component 4 is provided with a support position, and the movable rod member is supported by the support position on theelastic component 4. The support position is an opening formed on the elastic component for receiving the removable rod member. The front wall of the cartridge body, on which the ink outlet is arranged, is provided with a clamping position, and one end of the elastic component is fixedly connected with the cartridge body through the clamping position. - The air outside the ink cartridge enters the
cartridge body 1 through the air inlet. Theink outlet 7 plays a role of transferring the ink inside theink cartridge 1 to the printing head of the printer. - The
first detection component 3 performs the detection in cooperation with thefirst sensor 104 on the printer. After the ink cartridge is installed, thefirst detection component 3 blocks the light emitted from a light emitting portion of thefirst sensor 104, as shown inFigure 8 , so that a receiving portion of thefirst sensor 104 receives no light. After the detection in the printer in cooperation with thesecond detection component 5, successful installation detection of the ink cartridge is achieved. - The
second detection component 5 performs the detection in cooperation with thesecond sensor 102 on the printer. After the ink cartridge is installed, thesecond detection component 5 blocks the light emitted from a light emitting portion of thesecond sensor 102, so that a receiving portion of thesecond sensor 102 receives no light. After the detection in the printer in cooperation with thefirst detection component 3, successful installation detection of the ink cartridge is achieved, as shown inFigure 8 . - The
elastic component 4 plays a role in installation detection in cooperation with the second detection component. That is because the following states exist in the process of installing the ink cartridge into the printer: - In the beginning, two
sensors second senor 102 and is blocked by themovable rod member 5 so as not to return to the receiving portion of thesecond sensor 102. Under this state the light path of thesecond sensor 102 is switched off, while thefirst sensor 104 which is not in contact with thefirst detection component 3 is under the state of switching-on. - Light is then emitted from the emitting portion of the
second sensor 102, as theelastic component 4 comes into contact with the wall of theink cartridge housing 10, theelastic component 4 undergoes displacement so as not to support themovable rod member 5 any more, and thus themovable rod member 5 rotates around the fixed shaft, and a displacement of themovable rod member 5 relative to a front arm of theink cartridge 1 along an installation direction is larger than a length of thesecond sensor 102 along an installation direction. In this case, the detection position of themovable rod member 5 has passed by the sensing position of thesecond sensor 102, and the light is emitted to the receiving portion of thesecond sensor 102. Under this state, the light path of thesecond sensor 102 is switched on, while the light emitted from the emitting portion of thefirst sensor 104 is blocked by thefirst detection component 3, thus the light path of thefirst sensor 104 is under the state of switching-off. - As the ink cartridge is further pushed into the printer, light is emitted from the emitting portion of the
second sensor 102, and themovable rod member 5 comes into contact with and is supported by thesoft support cap 6 at its rear part, as shown inFigure 4 , and displacement of themovable rod member 5 stops, and now themovable rod member 5 is positioned at the detection position of thesecond sensor 102. In this case, the light emitted from thesecond sensor 102 is blocked by themovable rod member 5 so as not to return to the receiving portion of thesecond sensor 102. Under this state, the light path of the second sensor is switched off, and the light emitted from the emitting portion of thefirst sensor 104 is still blocked by thefirst detection component 3. Therefore, the light path of thefirst sensor 104 is also under the state of switching-off, and the ink inlet of the printer is cooperative with theink outlet 7 of the ink cartridge and smooth ink supply is achieved. - During the initial state in the above installation process, as shown in
Figure 3 , theelastic component 4 supports themovable rod member 5. When themovable rod member 5 passes by the detection position of thesecond sensor 102 once, theelastic component 4 does not support themovable rod member 5 any more. Afterwards, themovable rod member 5 is supported by thesoft support cap 6. When the ink cartridge is removed from the printer, theelastic component 4 becomes to support themovable rod member 5 once again so that themovable rod member 5 returns to its original position so as to repeat the installation process above when reinstallation is required. - The
elastic component 4 plays another role of springing the ink cartridge away from theink cartridge housing 10 when the ink cartridge is removed from the printer. This process is as below: when the ink cartridge is installed into theink cartridge housing 10, as shown inFigure 7 , theelastic component 4 is deformed, and the deformedelastic component 4 cannot reset after the inkcartridge housing cap 105 is closed, thus theelastic component 4 resets to push the ink cartridge away from the ink cartridge housing when the inkcartridge housing cap 105 is opened. - The
soft support cap 6 plays a role of supporting themovable rod member 5 after the ink cartridge is installed, so that thesecond detection component 5 is maintained at the detection position of thesecond sensor 102 to achieve successful installation detection, as shown inFigure 8 . - The
soft support cap 6, as shown inFigure 9C , comprises: aflexible support film 61, which can support themovable rod member 5 and can collapse according to internal pressure change; acommunication passage 62, which can be communicate with the ink chamber; and a soft supportcap sealing rib 63, which can seal the ink chamber, as shown inFigure 9D . - The soft support cap plays another role of cooperating with the ink depletion detection of the printer, and the ink depletion detection comprises the following process:
- The quantity of ink continuously decreases as the printing is performed. When the ink inside the ink cartridge is used up, the
flexible support film 61 of theflexible support cap 6, due to the adjustment of thebuoyancy valve 8 and thegravity valve 9 inside theink cartridge 1, collapses under the suction action of an ink supply needle of the printer when the ink is about to be used up. Theflexible support cap 61 no longer supports themovable rod member 5 and themovable rod member 5 continues to move under gravity to be away from the position where the light path of thesecond sensor 102 is blocked. Light is directly emitted to a light receiving element. In this case, thefirst sensor 104 of the printer is blocked, while thesecond sensor 102 is not blocked, thus the printer prompts the ink will be used up and sends a signal to the user. - The
buoyancy valve 8 and thegravity valve 9 play the role of adjusting the pressure inside the ink cartridge, so that thesoft support cap 6 is caused to collapse, as shown inFigure 5 , so as to further achieve the purpose of detecting ink depletion. - The
buoyancy valve 8 comprises: abuoyancy valve base 81 as shown inFigure 9A and abuoyancy valve core 82, wherein thebuoyancy valve base 81 is characterized by a valvecore sealing portion 811 cooperative with thebuoyancy valve core 82, afluid passage 812 for communicating the ink chamber with the ink outlet, and a valvebase sealing rib 813 capable of fixing thevalve base 81 and sealing the periphery of thevalve base 81; thevalve core 82 is characterized by having a density lower than that of the ink and being capable of sealing thefluid passage 812 in cooperation with the valvebase sealing portion 811, as shown inFigure 9B . - The
gravity valve 9 comprises: agravity valve base 91 and agravity valve core 92, wherein thegravity valve base 91 includes the same structural characteristics as thebuoyancy valve base 81; thevalve core 92 is characterized by having a density higher than that of the ink and being capable of sealing the fluid passage under certain pressure (>-3KPa) in cooperation with the valve base sealing portion, as shown inFigure 8 . A negative pressure value under the control of the gravity valve is larger than a collapsing resistance value of the soft support cap. - The process of controlling the
buoyancy valve 8 and thegravity valve 9 is as follows: - When the ink inside the ink cartridge is not used up, the
buoyancy valve core 82 of thebuoyancy base 8 floats above the ink due to the density thereof lower than that of the ink. Thebuoyancy valve 8 is under the state of opening, and the pressure inside the ink cartridge is the same as outside pressure. Thegravity valve core 92 of thegravity valve 9, due to the density thereof higher than that of the ink, is cooperative with the valve base sealing portion so that the gravity valve is under the state of closing. The flowing path of the ink is shown as the dotted line inFigure 10 . - The level of the ink continuously descends as the ink is used for printing. By the time the
buoyancy valve core 82 is cooperative with the valve base sealing portion, thebuoyancy valve 8 is closed. Since thegravity valve 9 is also under the state of closing, the cavity adjacent to the ink outlet is under the state of sealing. Since the ink supply needle of the printer has certain suction force, thus printing is not influenced. - After both the
buoyancy valve 8 and thegravity valve 9 are closed, the pressure of the ink chamber communicating with thesoft support cap 6 gradually decreases as the ink is used for printing. When the pressure reaches certain value (-0.5 to -3KPa), theflexible support film 61 of thesoft support cap 6 is deformed so as not to support thesecond detection component 5 any more. In this case, the printer prompts the ink is about to be used up (2-3ml of the ink remains inside the ink cartridge at this stage). - After the situation that the ink is about to be used up is promoted, the ink supply needle of the printer still sucks the ink ceaselessly. When the pressure at the ink outlet reaches certain value (≤-3KPa), the pressure generated by the pressure difference between atmosphere and interior of the cavity can overcome the gravity of the
gravity valve core 92 of thegravity valve 9, thus thegravity valve core 92 moves away from the sealing position and thegravity valve 9 is opened. The air can enter through the fluid passage, and the ink chamber is communicated with thesoft support cap 6, shown asFigure 6 . In this case, the fluid flows in a manner as shown inFigure 11 . When the pressure inside the cavity decreases, since thegravity valve 9 is opened, the pressure interior of the cavity is inclined to be identical with external pressure (because the pressure value is a negative value, the value decreases, e.g., the previous pressure value is -70KP, while the present pressure value is -60KP), the pressure generated by the pressure difference between atmosphere and interior of the cavity cannot overcome the gravity of thegravity valve core 92 of thegravity valve 9, thus thegravity valve core 92 returns to the sealing position once again, and thegravity valve 9 is closed once again. As the ink is used, thegravity valve 9 is opened and closed ceaselessly to balance the pressure inside the cavity until the ink is used up. - This negative pressure control manner with a high control precision can achieve accurate control of the pressure when the
soft support cap 6 collapses, thereby ensuring the accuracy of ink depletion detection of the printer.
Claims (9)
- An ink cartridge for an ink jet printer, comprising a cartridge body and a detection mechanism for detecting the ink cartridge and residual quantity of ink, wherein the cartridge body comprises an ink tank for storing ink, an ink outlet for supplying ink to a printing head of the printer and an air inlet, the ink tank comprises a first ink chamber and a second ink chamber, a first negative pressure mechanism is arranged between the first ink chamber and the second ink chamber, the ink cartridge is characterized in that a second negative pressure mechanism is further arranged between the first ink chamber and the second ink chamber, the first negative pressure mechanism and the second negative pressure mechanism cooperatively control the ink inside the first ink chamber to be consumed preferentially than the ink inside the second ink chamber, and the second negative pressure mechanism generates negative pressure only when a certain quantity of ink inside the ink tank is reached.
- The ink cartridge for an ink jet printer according to claim 1, wherein the first negative pressure mechanism is a gravity valve and the second negative pressure mechanism is a buoyancy valve.
- The ink cartridge for an ink jet printer according to claim 2, wherein the gravity valve comprises a gravity valve base and a gravity valve core with a density higher than that of the ink.
- The ink cartridge for an ink jet printer according to claim 2, wherein the buoyancy valve comprises a buoyancy valve base and a buoyancy valve core with a density lower than that of the ink.
- The ink cartridge for an ink jet printer according to any one of claims 1, 2, 3 and 4, wherein the detection mechanism for detecting the ink cartridge and the residual quantity of ink comprises a first detection component cooperative with a first sensor on the printer, a second detection component cooperative with a second sensor on the printer and a soft support cap communicating with the second ink chamber on the cartridge body, the second detection component comprises a movable rod member and a fixed shaft arranged at the cartridge body, the movable rod member is rotatably connected with the cartridge body through the fixed shaft, the soft support cap is positioned at a corresponding position where the movable rod member droops under gravity and comes into contact with the movable rod member when a position adjusting member of the movable rod member overtakes the soft support cap.
- The ink cartridge for an ink jet printer according to any one of claims 1, 2, 3 and 4, wherein a front wall of the cartridge body, on which the ink outlet is arranged, is provided with an elastic component, one end of the elastic component is fixedly connected with the front wall of the cartridge body, the other end of the elastic component is capable of reach a wall of an accommodation space of the ink cartridge of the printer by bending the elastic component, the elastic component is provided with a support position, and the movable rod member is supported by the support position on the elastic component.
- The ink cartridge for an ink jet printer according to any one of claims 1, 2, 3 and 4, wherein a negative pressure value under control of the gravity valve is larger than a collapsing resistance value of the soft support cap.
- The ink cartridge for an ink jet printer according to claim 6, wherein the support position is an opening formed on the elastic component.
- The ink cartridge for an ink jet printer according to claim 6, wherein the front wall of the cartridge body, on which the ink outlet is arranged, is provided with a clamping position, and one end of the elastic component is fixedly connected with the cartridge body through the clamping position.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009101103714A CN101693424B (en) | 2009-10-30 | 2009-10-30 | Ink box of ink jet printer |
PCT/CN2010/080052 WO2011050759A1 (en) | 2009-10-30 | 2010-12-21 | Ink cartridge for inkjet printer |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2524810A1 true EP2524810A1 (en) | 2012-11-21 |
Family
ID=42092445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10826122A Withdrawn EP2524810A1 (en) | 2009-10-30 | 2010-12-21 | Ink cartridge for inkjet printer |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2524810A1 (en) |
CN (1) | CN101693424B (en) |
DE (1) | DE202010001340U1 (en) |
WO (1) | WO2011050759A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3225401A1 (en) * | 2016-03-31 | 2017-10-04 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge |
JP2017177731A (en) * | 2016-03-31 | 2017-10-05 | ブラザー工業株式会社 | Liquid cartridge |
JP2017177732A (en) * | 2016-03-31 | 2017-10-05 | ブラザー工業株式会社 | Liquid cartridge |
US10086621B2 (en) | 2016-03-31 | 2018-10-02 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having movable member and contact member, and system using the same |
US10343413B2 (en) | 2017-09-29 | 2019-07-09 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including movable member |
US10421284B2 (en) | 2017-09-29 | 2019-09-24 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having pivotable lever provided with light-blocking portion |
EP3546224A1 (en) * | 2018-03-29 | 2019-10-02 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including movable member and system using the same |
US10513124B2 (en) | 2017-09-29 | 2019-12-24 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including movable member having contact surface |
US10618294B2 (en) | 2016-03-31 | 2020-04-14 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge |
US10688794B2 (en) | 2017-09-29 | 2020-06-23 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including light blocking portion |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101693424B (en) * | 2009-10-30 | 2012-07-18 | 珠海纳思达电子科技有限公司 | Ink box of ink jet printer |
CN102218924B (en) * | 2010-04-16 | 2015-01-07 | 珠海纳思达企业管理有限公司 | Ink box used for ink-jet printer |
CN102233737B (en) * | 2010-05-01 | 2015-04-08 | 珠海纳思达企业管理有限公司 | Ink box, ink box set and ink box determining system |
CN104608498B (en) * | 2010-05-01 | 2017-05-31 | 珠海纳思达企业管理有限公司 | Print cartridge, print cartridge group and ink cartridge determination systems |
JP6432261B2 (en) * | 2014-09-30 | 2018-12-05 | ブラザー工業株式会社 | Liquid consumption device |
CN107878030B (en) * | 2016-09-29 | 2020-03-24 | 兄弟工业株式会社 | Liquid box |
CN109304940B (en) * | 2017-07-28 | 2024-04-19 | 珠海纳思达企业管理有限公司 | Detection method for printer, printer and ink cartridge |
CN110936720B (en) * | 2018-09-21 | 2021-10-15 | 珠海纳思达企业管理有限公司 | Ink cartridge and printer |
CN115230331B (en) * | 2022-09-02 | 2023-08-08 | 广州诺彩数码产品有限公司 | Negative pressure type automatic sealing device for sealing printer ink |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2726881Y (en) * | 2004-09-06 | 2005-09-21 | 聂瑞权 | Ink-jet printer cartridge |
CN2875810Y (en) * | 2006-03-15 | 2007-03-07 | 珠海天威技术开发有限公司 | Ink box for ink jet printing machine |
CN101412318A (en) * | 2007-10-19 | 2009-04-22 | 研能科技股份有限公司 | Ink cartridge component |
CN101491975B (en) * | 2009-02-20 | 2011-12-28 | 珠海纳思达电子科技有限公司 | Ink box for ink jet printer |
CN101693424B (en) * | 2009-10-30 | 2012-07-18 | 珠海纳思达电子科技有限公司 | Ink box of ink jet printer |
CN201580053U (en) * | 2009-10-30 | 2010-09-15 | 珠海纳思达电子科技有限公司 | Ink box for ink spraying printer |
-
2009
- 2009-10-30 CN CN2009101103714A patent/CN101693424B/en active Active
-
2010
- 2010-01-18 DE DE201020001340 patent/DE202010001340U1/en not_active Expired - Lifetime
- 2010-12-21 EP EP10826122A patent/EP2524810A1/en not_active Withdrawn
- 2010-12-21 WO PCT/CN2010/080052 patent/WO2011050759A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011050759A1 * |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10391778B2 (en) | 2016-03-31 | 2019-08-27 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with deformable member, movable member, and urging member for detection of remaining amount of liquid |
US10086621B2 (en) | 2016-03-31 | 2018-10-02 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having movable member and contact member, and system using the same |
EP3225401A1 (en) * | 2016-03-31 | 2017-10-04 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge |
JP2017177736A (en) * | 2016-03-31 | 2017-10-05 | ブラザー工業株式会社 | Liquid cartridge |
CN107264042A (en) * | 2016-03-31 | 2017-10-20 | 兄弟工业株式会社 | Fluid cartridge |
EP3260298A1 (en) * | 2016-03-31 | 2017-12-27 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge |
US9925784B2 (en) | 2016-03-31 | 2018-03-27 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with deformable member, movable member, and urging member for detection of remaining amount of liquid |
US10022975B2 (en) | 2016-03-31 | 2018-07-17 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having detection member movable in accordance with deformation of deformable member |
US10029472B2 (en) | 2016-03-31 | 2018-07-24 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with deformable member and movable member for detection of remaining amount of liquid |
US10618294B2 (en) | 2016-03-31 | 2020-04-14 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge |
US10399352B2 (en) | 2016-03-31 | 2019-09-03 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having detection member movable in accordance with deformation of deformable member |
US10384460B2 (en) | 2016-03-31 | 2019-08-20 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge provided with deformable member and movable member for detection of remaining amount of liquid |
JP2017177732A (en) * | 2016-03-31 | 2017-10-05 | ブラザー工業株式会社 | Liquid cartridge |
JP2017177731A (en) * | 2016-03-31 | 2017-10-05 | ブラザー工業株式会社 | Liquid cartridge |
CN107264042B (en) * | 2016-03-31 | 2020-08-21 | 兄弟工业株式会社 | Liquid box |
US10752011B2 (en) | 2016-03-31 | 2020-08-25 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having detection member movable in accordance with deformation of deformable member |
US10654281B2 (en) | 2016-03-31 | 2020-05-19 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having movable member and contact member, and system using the same |
US11890875B2 (en) | 2017-09-29 | 2024-02-06 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having pivotable lever provided with light-blocking portion |
US10513124B2 (en) | 2017-09-29 | 2019-12-24 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including movable member having contact surface |
US10688796B2 (en) | 2017-09-29 | 2020-06-23 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including movable member |
US10688794B2 (en) | 2017-09-29 | 2020-06-23 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including light blocking portion |
US10421284B2 (en) | 2017-09-29 | 2019-09-24 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having pivotable lever provided with light-blocking portion |
US10773525B2 (en) | 2017-09-29 | 2020-09-15 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having pivotable lever provided with light-blocking portion |
US11072184B2 (en) | 2017-09-29 | 2021-07-27 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including movable member |
US11351792B2 (en) | 2017-09-29 | 2022-06-07 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge having pivotable lever provided with light-blocking portion |
US10343413B2 (en) | 2017-09-29 | 2019-07-09 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including movable member |
EP3546224A1 (en) * | 2018-03-29 | 2019-10-02 | Brother Kogyo Kabushiki Kaisha | Liquid cartridge including movable member and system using the same |
Also Published As
Publication number | Publication date |
---|---|
DE202010001340U1 (en) | 2010-04-08 |
WO2011050759A1 (en) | 2011-05-05 |
CN101693424B (en) | 2012-07-18 |
CN101693424A (en) | 2010-04-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2524810A1 (en) | Ink cartridge for inkjet printer | |
US8511804B2 (en) | Ink cartridge for an ink jet printer | |
US7690773B2 (en) | Ink cartridges | |
US6908179B2 (en) | Ink level and negative pressure control in an ink jet printer | |
JP4923931B2 (en) | Detection device | |
JP4380712B2 (en) | Droplet discharge device | |
CN102218924B (en) | Ink box used for ink-jet printer | |
US6676237B2 (en) | Ink jet recording apparatus and method of correcting calculation of ink amount consumed therein | |
US8272704B2 (en) | Ink containment system and ink level sensing system for an inkjet cartridge | |
US7918548B2 (en) | Ink cartridges | |
JP4595359B2 (en) | Ink cartridge and inkjet printer | |
EP1839872A1 (en) | Ink cartridge | |
US10160221B2 (en) | Liquid cartridge having engaging surface, and liquid-consuming device using the same | |
US8246151B2 (en) | Liquid supply devices | |
JP4940809B2 (en) | Inkjet recording device | |
JP2005104023A (en) | Inkjet recording apparatus and a set of ink cartridges | |
WO2014101673A1 (en) | Adapter for ink tank and ink cartridge comprising adapter | |
CN108698408B (en) | Liquid box | |
JP2010069845A (en) | Liquid feeding apparatus, printer, and controlling method for liquid feeding apparatus | |
CN217917305U (en) | Ink box | |
JP4923932B2 (en) | Detection device | |
JP2009166359A (en) | Liquid supplier and liquid injector | |
JP2004358838A (en) | Liquid container | |
JP2010069846A (en) | Liquid feeding device, and printing device | |
JP2004358832A (en) | Liquid container |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20120530 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
XX | Miscellaneous |
Free format text: A REQUEST FOR RESTORATION OF THE RIGHT OF PRIORITY UNDER RULE 49TER.2 PCT IS PENDING BEFORE THE EPO AS DESIGNATED OFFICE. |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20140701 |