CN217993892U - Ink box - Google Patents

Abstract

The utility model discloses an ink box, including box body and shading portion and liquid detection portion, be equipped with the ink storage chamber in the box body, the shading portion sets up on the box body top surface, is equipped with the light screen that can block or attenuate the light that sends out from printing device on the shading portion, and the length of shading plate thickness more than or equal to light screen, and liquid detection portion sets up on the box body top surface for detect the liquid measure state of storing up the ink intracavity, and the light screen is located the front side of liquid detection portion on ink box installation direction. The utility model discloses the ink horn has shortened the length of light screen, improves the distance between light screen and liquid detection portion, makes detection area more obvious to prevent the false retrieval, in addition because the length of light screen shortens, when taking out the ink horn, can stand the horse and make optical sensor department become the printing opacity state from the shading state, the change of signal of telecommunication takes place in the response of standing the horse, and feedback printer ink horn has taken out, and increases the thickness of shading plate, compensaties the not enough of light screen intensity.

Description

Ink box

Technical Field

The utility model relates to a printing apparatus technical field, especially an ink horn.

Background

An ink cartridge is a detachable part widely used in a printing apparatus for supplying consumables to an electronic image forming apparatus.

Among the prior art, the ink horn realizes the installation of ink horn through the combined action of chip and light screen and detects and take out, however, because the light screen of ink horn sets up length longer, still can continue to have a period of shading to optical sensor when taking out the ink horn, the chip still is in electric connection state with the contact of printer contact needle this moment, causes the false detection easily, can't correctly judge taking out of ink horn, can't ensure the accurate degree of ink volume detection piece and installation detection piece position, detection effect when the influence is printed.

Therefore, a solution to the above-mentioned problems is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems existing in the prior art, the present invention provides an ink cartridge to solve the above technical problems.

The utility model discloses a reach its purpose, the technical scheme of adoption as follows:

an ink cartridge detachably mountable to a printing apparatus, comprising:

the box body is internally provided with an ink storage cavity;

the shading part is arranged on the top surface of the box body, a shading plate capable of blocking or attenuating light emitted from the printing device is arranged on the shading part, and the thickness of the shading plate is greater than or equal to the length of the shading plate; and

the liquid detection part is arranged on the top surface of the box body and used for detecting the liquid volume state in the ink storage cavity, and the light shielding plate is positioned on the front side of the liquid detection part in the installation direction of the ink box.

The ink horn that has above-mentioned structure, the thickness of shading plate is greater than or equal to the length of shading plate, has shortened the length of shading plate, improves the distance between shading plate and the liquid detection portion, makes the detection area more obvious to prevent the false retrieval, because the length of shading plate shortens in addition, when taking out the ink horn, can stand the horse and make optical sensor department become the printing opacity state from the shading state, stand the change of horse response emergence signal of telecommunication, the feedback printer ink horn has taken out, and increase the thickness of shading plate, compensate the not enough of shading plate intensity.

Preferably, in some embodiments, the thickness of the shutter plate is less than 2.8mm. Therefore, the thickness of the shading plate does not exceed the distance 2.8mm between the optical sensors on the printing device, thereby influencing the use.

Preferably, in some embodiments, the shutter plate is 2.6mm thick and 2.55mm long. Therefore, the thickness of the light shielding plate is larger than or equal to the length of the light shielding plate, and the distance between the optical sensors on the printing device cannot be exceeded.

Preferably, in some embodiments, there is a gap between the liquid detection part and the light shielding plate in the ink cartridge mounting direction. From this, through setting up the light screen in the front side of liquid detection portion, make the ink horn when the installation, the light screen can block to remove to the liquid detection portion from the shavings that the chip produced on, influence the detection of liquid detection portion, and liquid detection portion and light screen interval set up, when making the light screen use, can not influenced by liquid detection portion, cause the misdetection.

Preferably, in some embodiments, the light shielding portion further includes a shielding wall, the shielding wall is located at the rear side of the light shielding plate, and the shielding wall is adapted to the front side of the liquid detection portion, and the shielding wall can be attached to the liquid detection portion. Therefore, the shielding wall can prevent shavings generated from the chip from moving to the liquid detection part, and the detection of the liquid detection part is influenced.

Preferably, in some embodiments, the shielding wall is formed by connecting two clamping plates, an angle between the two clamping plates is an acute angle, the liquid detection part can be inserted between the two clamping plates, and the maximum distance between the two clamping plates is greater than or equal to the maximum thickness of the liquid detection part. Thus, the shielding wall can better block shavings for the liquid detection portion.

Preferably, in some embodiments, the top of the light blocking portion is flush or higher than the top of the liquid detection portion. Therefore, the light shielding part can better prevent shavings from falling on the liquid detection part in the mounting direction of the ink box.

Preferably, in some embodiments, the light shielding plate further comprises a chip, the chip is mounted on the top surface of the box body, and the chip is located on the front side of the light shielding plate in the mounting direction of the ink box. From this, make the chip can realize the installation of ink horn with the combined action of light screen and detect and take out, detect more accurately.

Preferably, in some embodiments, the ink cartridge further includes an ink outlet provided on the ink cartridge to be capable of communicating with the ink reservoir, the ink outlet defining a horizontal flow path in the insertion direction, and the light shielding plate being located at a rear side of the ink outlet in the cartridge mounting direction. Therefore, the shading plate is arranged on the rear side of the ink outlet, so that the shading plate can detect whether the ink outlet is installed in place or not.

Preferably, in some embodiments, the chip is located on a rear side of the ink outlet in the cartridge mounting direction, and the liquid detection portion and the light shielding plate are both located above the chip. Thus, the liquid detection portion is provided above the chip, chips generated from the chip are made difficult to adhere to the liquid detection portion, and even if chips are generated from the chip, detection at the liquid detection portion is less affected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a perspective view of an ink cartridge of the present invention;

FIG. 2 is an enlarged schematic view of the position A in FIG. 1;

FIG. 3 is a schematic view of the internal structure of the case of the present invention;

FIG. 4 is a perspective view of the ink cartridge of the present invention mounted to a printing apparatus;

fig. 5 is a perspective view of the printing device of the present invention;

FIG. 6 is a first cross-sectional view of the ink cartridge of the present invention mounted on a printing device;

fig. 7 is a second cross-sectional view of the ink cartridge installed on the printing device according to the present invention.

In the figure: 1. a printing device; 11. a mounting cavity; 12. an ink supply unit; 13. a stylus; 14. a detection member; 15. a fastening part; 2. a box body; 21. an accommodating chamber; 22. a chip; 221. a substrate; 222. an electrical interface; 23. a liquid detection member; 24. a light shielding portion; 241. a mounting seat; 242. a visor; 243. a shield wall; 25. an ink outlet; 26. a groove; 27. a sensor arm; 28. a rotating shaft; 29. a locking portion; 3. a handle.

Detailed Description

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the overall structure of the ink cartridge of the present invention is schematically illustrated.

Referring to fig. 1 to 7, the present embodiment provides an ink cartridge for mounting a printing apparatus 1 (e.g., a printer), wherein the printing apparatus 1 is provided with a mounting chamber 11, and the ink cartridge is detachably mounted in the mounting chamber 11. The ink cartridge stores consumables for development, such as: and (3) ink. When the printing apparatus 1 prints, the consumables in the ink cartridge may be displayed on a printing medium (e.g., paper, or other printing medium that can carry consumables). One or more mounting cavities 11 may be provided on the printing apparatus 1, and one or more ink cartridges may be mounted thereon, and may be provided with one or more consumables. Generally, the printing apparatus 1 has a plurality of installation cavities 11 (e.g. 4, 5, 6) arranged side by side, each installation cavity 11 can be installed with an ink cartridge, the plurality of ink cartridges may be of the same color or different colors, the shape of the ink cartridge can be adapted to the shape of the installation cavity 11, so that the ink cartridge can be installed on the installation cavity 11, the ink cartridge has an ink outlet 25, the installation cavity 11 has an ink supply unit 12, the ink supply unit 12 is provided with an ink supply needle (not shown), when the ink cartridge is installed on the installation cavity 11, the ink supply needle can be inserted into the ink outlet 25 of the ink cartridge, so that the ink supply needle can communicate with the ink cartridge, so that the ink cartridge can supply ink to the ink cartridge. The structure of the printing apparatus 1 is conventional and will not be described here.

Wherein, the ink box includes box body 2 and the chip 22 of setting on box body 2, liquid detection portion 23, shading portion 24 and ink outlet 25, be equipped with the chamber 21 that holds the ink in the box body 2, ink outlet 25 can communicate and hold chamber 21 and printing device 1, be used for installing and supplying ink for printing device 1 in installation cavity 11, liquid detection portion 23 and shading portion 24 all set up on box body 2, liquid detection portion 23 can be used for detecting the interior china ink volume of box body 2, shading portion 24 and chip 22 all can detect the installation condition of ink box at printing device 1.

The cartridge body 2 has a front surface a constituting a mounting direction side of the cartridge to the mounting chamber 11, a rear surface b opposite to the front surface a, a top surface c intersecting the front surface a and the rear surface b, a bottom surface d opposite to the top surface c, a left surface e intersecting the front surface a, the rear surface b and the top surface c, and a right surface f opposite to the left surface e, which are connected to each other so that the cartridge body 2 forms a substantially rectangular parallelepiped cartridge body 21 structure. To better explain the components of the ink cartridge, a three-dimensional rectangular coordinate system XYZ axis is established, two X axis, Y axis and Z axis are perpendicular to each other, the cartridge body 2 is set in the vertical direction in the Z axis direction in the use state, i.e., the direction from the bottom surface to the top surface is + Z direction, the horizontal direction is X direction, i.e., the direction from the rear surface b to the front surface is + X direction, the mounting direction of the cartridge body 2 and the length direction of the cartridge body 2, and the width of the cartridge body 21 is the second direction Y, i.e., the direction from the left surface e to the right surface f is + Y direction.

In some embodiments, the chip 22 is disposed on the ink cartridge, and in the mounting direction of the ink cartridge, the chip 22 is located at the front side of the shading portion 24, the chip 22 can be used to record information such as the amount of ink in the ink cartridge, the number of times of using the ink cartridge, and the like, and can transmit information on the ink cartridge to the printing device 1 by being electrically connected to the printing device 1 when the ink cartridge is mounted on the printing device 1, so as to avoid resource waste, the chip 22 on the ink cartridge can be mounted on a new ink cartridge by being dismounted to be reused, and the ink cartridge is used for dismounting the chip 22. The structure of the chip 22 is conventional and will not be described herein.

Specifically, in the present embodiment, the ink cartridge is mounted on the upper surface (i.e., the top surface c) of the printing apparatus 1 facing upward in the liquid supply posture, the substrate 221 is provided with the electrical interface 222, the substrate 221 and the electrical interface 222 constitute a chip structure, so that the chip 22 is disposed on the top surface c of the ink cartridge, so that the chip 22 can be mounted on the ink cartridge, and can be located in front of the light shielding portion 24 in the cartridge mounting direction; and when the installation cavity 11 of the printing device 1 comprises the contact pins 13, and the ink cartridge is installed in the installation cavity 11 of the printing device 1, the chip 22 corresponds to the contact pins 13, the electrical interface 222 on the chip 22 can collide with the contact pins 13, so that the chip 22 is electrically connected with the contact pins 13, and the printing device 1 can receive the information of the ink cartridge on the chip 22.

In some embodiments, ink outlets 25 are located below the chip 22 plate in the Z-direction. Specifically, in the present embodiment, the ink cartridge has a recess 26 on the front surface a, the recess 26 is provided with an ink outlet 25, the supply port can be more effectively and correspondingly matched with the supply needle of the installation cavity 11 through the ink outlet 25, the position of the ink supply unit 12 on the installation cavity 11 of the printing apparatus 1 corresponds to the position of the ink outlet 25 on the ink cartridge, when the ink cartridge is installed in the installation cavity 11 of the printing apparatus 1, the ink outlet 25 on the ink cartridge is guided by the ink outlet 25 matching with the ink supply unit 12 of the installation cavity 11, and the ink outlet 25 on the ink cartridge is connected with the ink supply needle on the ink supply unit 12 on the installation cavity 11, so that the ink can be supplied to the printing apparatus 1.

In some embodiments, the shading part 24 is disposed on the cartridge body 2, the shading part 24 is provided with a shading plate 242 capable of blocking or attenuating light emitted from the printing device 1, and can be used for detecting whether the cartridge body 2 is mounted on the printing device 1 in place, and in the mounting direction of the cartridge, the shading part 24 is located at the front side of the liquid detection part 23, and the thickness of the shading plate 242 is larger than or equal to the length of the shading plate 242, by shortening the length of the shading plate 242, when the cartridge is taken out, the optical sensor can be changed from a shading state to a light transmission state immediately, the printer cartridge can be fed back to be taken out immediately in response to the change of the generated electric signal, and the strength of the shading plate 242 can be reduced due to the shortening of the shading plate 242, so that the thickness of the shading plate 242 is increased, and the shortage of the strength of the shading plate 242 is compensated.

Specifically, in the present embodiment, the detection member 14 is provided in the printing apparatus 1, and the detection member 14 includes a first optical sensor (not shown) and a second optical sensor (not shown) provided along the Y direction, where the first optical sensor and the second optical sensor are a pair of optical sensors, one end is a light emitter and the other end is a light receiver; when the ink cartridge is installed in the installation chamber 11 of the printing apparatus 1 and the cartridge body 2 is installed in the installation chamber 11, the light shielding plate 242 on the ink cartridge can be inserted between the first optical sensor and the second optical sensor to shield the optical signal emitted by one of the first optical sensor and the second optical sensor or change the optical path emitted by one of the first optical sensor and the second optical sensor to change the signal received by the other of the first optical sensor and the second optical sensor, thereby determining the installation condition of the ink cartridge.

The shading part 24 is arranged on the top surface c of the ink box, the mounting seat 241 is fixed on the top surface c of the ink box, the shading plate 242 in a roughly cuboid shape is arranged on the mounting seat 241, the size of the shading plate 242 in the Y direction is larger than that of the shading plate 242 in the X direction, namely, the thickness of the shading plate 242 is larger than that of the shading plate 242, when the ink box is mounted, the length of the shading plate 242 moving along with the box body 2 is shortened, the optical sensor position can be changed from a shading state to a light transmission state immediately, the immediately stands to respond the change of an electric signal, the printer ink box is fed back to be taken out, the thickness of the shading plate 242 becomes thicker, and the shortage of the strength of the shading plate 242 is made up.

Further, the thickness of the shadow mask 242 is less than 2.8mm. Specifically, in the present embodiment, the minimum distance between the first optical sensor and the second optical sensor in the mounting chamber 11 is 2.8mm, the thickness of the substantially rectangular light shielding plate 242 is set to 2.6mm, and the length is set to 2.55mm, and when the ink cartridge is mounted, the thickness of the light shielding plate 242 is smaller than the minimum distance between the first optical sensor and the second optical sensor, so that the light shielding plate 242 can be inserted between the first optical sensor and the second optical sensor, and the optical path between the first optical sensor and the second optical sensor is changed, so that the printing apparatus 1 can detect the mounted state of the ink cartridge.

In some embodiments, the liquid detection portion 23 is disposed on the top of the case body 2 for detecting the liquid amount state in the ink storage chamber, the light shielding plate 242 is located at the front side of the liquid detection portion 23 in the ink cartridge installation direction, and by disposing the light shielding plate 242 at the front side of the liquid detection portion 23, when the ink cartridge is installed, the light shielding plate 242 can prevent shavings generated from the chip 22 from moving to the liquid detection portion 23 and affecting the detection of the liquid detection portion 23; in addition, in the mounting direction of the ink cartridge, a certain distance is formed between the liquid detection part 23 and the light shielding plate 242, so that the liquid detection part 23 and the light shielding plate 242 are arranged at intervals, when the light shielding plate 242 is used, the light path between the first optical sensor and the second optical sensor is not shielded by the liquid detection part 23, and when the light shielding plate 242 is used, the influence of the liquid detection part 23 on the light shielding plate 242 is avoided, and the misdetection is caused.

Specifically, in the present embodiment, the liquid detection part 23 is a protrusion protruding in the + Z direction provided on the top surface c of the case 2, and the liquid detection part 23 is made of a transparent material, and the liquid detection part 23 is communicated with the accommodation chamber 21; a sensor arm 27 is provided in the accommodation chamber 21, the sensor arm 27 is supported by a rotation shaft 28 extending in the Y direction in the accommodation chamber 21 and is rotatable about the rotation shaft 28, the sensor arm 27 has a float having a smaller specific gravity than the ink accommodated in the accommodation chamber 21, and therefore, in the accommodation chamber 21, when the float is in the ink, the float generates a buoyancy, and in a state where the accommodation chamber 21 is substantially completely filled with the ink, the sensor arm 27 rotates in the accommodation chamber 21 in the counterclockwise direction due to the buoyancy of the float, and the top of the sensor arm 27 enters the inside of the liquid detection portion 23.

Further, a third photosensor (not shown) and a light-sensing portion (not shown) are provided in the mounting chamber 11 of the printing apparatus 1, the third photosensor and the light-sensing portion are arranged in the Y direction, and when the ink cartridge is mounted in the mounting chamber 11 of the printing apparatus 1, the position of the third photosensor corresponds to the position of the liquid detection portion 23, the liquid detection portion 23 can be interposed between the third photosensor and the light-sensing portion, and the optical path of the third photosensor can pass through the liquid detection portion 23 to the light-sensing portion.

When the top of the sensor arm 27 and the liquid detection portion 23 are rotated to reach the liquid detection portion 23 in a state where the accommodation chamber 21 is substantially completely filled with ink, the sensor arm 27 changes a state of transmitting light from the third photosensor within the liquid detection portion 23, that is, the top of the sensor arm 27 cuts off light emitted from the third photosensor, and performs other processing on the light: the top of the sensor arm 27 reduces the intensity of light expected to pass through the liquid detection portion 23 to below a predetermined intensity (where the intensity transmits light), for example, to zero. The portion of the sensor arm 27 may completely cut off light so that it does not pass through the liquid detection portion 23, may partially absorb light, may attenuate light, may bend the direction of light propagation, or may totally reflect light for changing the state of light transmitted from the third light sensor to the light sensing portion.

When the ink in the holding chamber decreases and the level of the ink drops below the position of the float, the top float of the sensor arm 27 drops with the level. Therefore, the sensor arm 27 is rotated in the counterclockwise direction in fig. 3, and since the top portion of the sensor arm 27 (which has entered the inside of the light incoming portion) is moved substantially in the-X direction due to the clockwise direction, the top portion of the sensor arm 27 is deviated from the liquid detecting portion 23, and in this state, the light emitted from the third photosensor can be transmitted through the liquid detecting portion 23 onto the light sensing portion, so that the amount of ink in the ink cartridge can be confirmed.

Furthermore, in the ink cartridge mounting direction, the light shielding plate 242 is located at the front side of the liquid detection portion 23 in the ink cartridge mounting direction, the chip 22 is arranged at the front side of the light shielding portion 24, so that the chip 22, the light shielding portion 24 and the liquid detection portion are sequentially arranged on the top surface c of the cartridge body 2, the light shielding portion 24 is arranged between the chip 22 and the liquid detection portion 23, and the chip generated by the contact of the chip 22 and the mounting cavity 11 during the ink cartridge mounting can be prevented from falling onto the liquid detection portion, thereby influencing the ink amount in the ink cartridge to be detected by the printing device 1 through the liquid detection portion 23; the liquid detector 23 and the light shielding plate 242 are higher in height in the Z direction than the chip 22, and both the liquid detector 23 and the light shielding plate 242 are located above the chip 22, so that shavings generated from the chip 22 are less likely to adhere to the liquid detector 23.

In some embodiments, the shielding portion 24 further includes a shielding wall 243, the shielding wall 243 is mounted on the mounting seat 241, the shielding wall 243 is located at the rear side of the shielding plate 242 in the cartridge mounting direction, the shape of the shielding wall 243 is adapted to the front side of the liquid detection portion 23, the shielding wall 243 can be attached to the liquid detection portion 23, the shielding wall 243 can block shavings generated from the chip 22 from moving onto the liquid detection portion 23, and the shavings generated from the chip 22 can be prevented from affecting the detection of the liquid detection portion 23. Specifically, in the present embodiment, the front end surface of the liquid detection unit 23 in the cartridge mounting direction is tapered, the rear end surface of the shielding wall 243 in the cartridge mounting direction is provided with a concave portion having the same shape as the front end surface of the liquid detection unit 23, the rear end surface of the shielding wall 243 can be attached to the front end surface of the liquid detection unit 23 at the top of the case 2, the shielding wall 243 can prevent shavings generated from the chip 22 from moving onto the liquid detection unit 23, and a certain distance is provided between the shielding wall 243 and the light shielding plate 242, so that the liquid detection unit 23 and the light shielding plate 242 have a certain gap.

Further, in some embodiments, the shielding wall 243 is formed by connecting two clamping plates, the angle between the two clamping plates is an acute angle, the liquid detecting part 23 can be inserted between the clamping plates, the maximum distance between the two clamping plates is greater than or equal to the maximum thickness of the liquid detecting part 23, and the top of the light shielding part 24 is flush with the top of the liquid detecting part 23 or higher than the top of the liquid detecting part 23, so that the light shielding part 24 can better block shavings from falling on the liquid detecting part 23 in the mounting direction of the ink cartridge. Specifically, in the present embodiment, the blocking wall 243 is formed in a substantially herringbone configuration by connecting two clamp plates, the liquid detection unit 23 can be inserted between the clamp plates, and the maximum width of the two clamp plates in the Y direction is larger than the maximum width of the liquid detection unit 23 in the Y direction, so that the two clamp plates can block shavings for the liquid detection unit 23 on the front side of the liquid detection unit 23, and the blocking wall 243 can better block shavings from falling on the liquid detection unit 23.

In some embodiments, the ink cartridge further comprises a locking portion 29 and an engaging portion 15 in the mounting chamber 11, wherein the locking portion 29 can be engaged with the engaging portion 15 when the ink cartridge is mounted in the mounting chamber 11, and the ink cartridge can be fixed in the mounting chamber 11 when the ink cartridge is mounted in the mounting chamber 11. Specifically, in this embodiment, the locking portion 29 is a snap-fit structure formed by protruding from the top surface c of the cartridge body 2, the engaging portion 15 is a cross bar arranged on the mounting cavity 11 along the Y direction, when the ink cartridge is mounted in the mounting cavity 11, the locking portion 29 of the snap-fit structure can be snapped onto the cross bar of the mounting cavity 11, so that the ink cartridge is fixed in the mounting cavity 11 in an engaged manner, and the front end of the locking portion 29 in the mounting direction is set to be an arc surface, so that the locking portion 29 can be engaged with the engaging portion 15 more easily during the mounting of the ink cartridge, thereby facilitating the mounting of the ink cartridge.

Preferably, in some embodiments, the box body 2 is further provided with a handle 3, and the box body 2 is conveniently detached in the mounting cavity 11 by arranging the handle 3. Specifically, in the present embodiment, a handle 3 is provided at the boundary between the top surface c and the rear surface b of the ink cartridge having a substantially rectangular parallelepiped shape, the handle 3 is capable of facilitating the operation of the ink cartridge by the user, and the user rotates the handle 3 to push the ink cartridge downward in the-Z direction, so that the locking portion 29 of the ink cartridge is disengaged from the mounting cavity 11, and the ink cartridge is taken out; alternatively, the ink cartridge is pushed to be mounted in the mounting chamber 11 by pushing the handle 3.

The utility model discloses ink box, the thickness of light screen 242 is greater than or equal to the length of light screen 242, has shortened the length of light screen 242, improves the distance between light screen 242 and liquid detection portion 23, makes detection area more obvious to prevent the false retrieval, in addition because the length of light screen 242 shortens, when taking out the ink horn, can stand the horse to make optical sensor department become the printing opacity state from the shading state, stand the change of horse response emergence signal of telecommunication, the feedback printer ink box has taken out, and increase the thickness of light screen 242, compensate the not enough of light screen 242 intensity.

What has been described above is merely some embodiments of the present invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (10)

1. An ink cartridge detachably mountable to a printing apparatus, comprising:

the ink storage box comprises a box body, wherein an ink storage cavity is arranged in the box body;

the shading part is arranged on the top surface of the box body, a shading plate capable of blocking or attenuating light emitted from the printing device is arranged on the shading part, and the thickness of the shading plate is greater than or equal to the length of the shading plate; and

the liquid detection part is arranged on the top surface of the box body and used for detecting the liquid amount state in the ink storage cavity, and the light shielding plate is positioned on the front side of the liquid detection part in the installation direction of the ink box.

2. The ink cartridge as claimed in claim 1, wherein said light shielding plate has a thickness of less than 2.8mm.

3. The ink cartridge as claimed in claim 2, wherein the light shielding plate has a thickness of 2.6mm and a length of 2.55mm.

4. The ink cartridge as claimed in any one of claims 1 to 3, wherein a gap is provided between said liquid detection portion and said light shielding plate in the cartridge mounting direction.

5. The ink cartridge as claimed in claim 4, wherein the light shielding portion further comprises a shielding wall located at a rear side of the light shielding plate, the shielding wall being adapted to a front side of the liquid detecting portion, the shielding wall being capable of being attached to the liquid detecting portion.

6. The ink cartridge as claimed in claim 5, wherein the blocking wall is formed by connecting two clamping plates, an angle between the two clamping plates is an acute angle, the liquid detecting portion can be inserted between the clamping plates, and a maximum distance between the two clamping plates is greater than or equal to a maximum thickness of the liquid detecting portion.

7. The ink cartridge as claimed in claim 4, wherein the top of the light shielding portion is flush with or higher than the top of the liquid detection portion.

8. The ink cartridge as claimed in claim 4, further comprising a chip mounted on the cartridge body, the chip being located on a front side of the light shielding plate in the cartridge mounting direction.

9. The ink cartridge as claimed in claim 8, further comprising an ink outlet provided on the ink cartridge to be communicable with the ink reservoir, the ink outlet defining a horizontal flow path in an insertion direction, and the light shielding plate being located on a rear side of the ink outlet in the cartridge mounting direction.

10. The ink cartridge as claimed in claim 9, wherein the chip is located on a rear side of the ink outlet in the cartridge mounting direction, and the liquid detection portion and the light shielding plate are located above the chip.

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