Developer Box

Abstract

The present invention provides a developing box, comprising a developing assembly and a powder storage assembly, wherein the developing assembly and the powder storage assembly are detachably connected; the developing assembly comprises a first powder bin, a first waste powder bin and a developing unit, wherein the first powder bin is used to supply carbon powder to the developing unit, and the first waste powder bin is used to receive waste carbon powder output by the developing unit; the powder storage assembly comprises a shell, wherein a second powder bin and a second waste powder bin are provided in the shell, wherein the second powder bin is connected to the first powder bin, and the second waste powder bin is connected to the first waste powder bin, and the height of the second powder bin relative to the second waste powder bin in the vertical direction is higher than the height of the first powder bin relative to the second waste powder bin in the vertical direction. The developing box provided by the present invention improves the powder feeding capacity of the developing box.

Description

Technical Field

[0001] The invention relates to the technical field of electronic imaging, and in particular to a developing box. Background Art

[0002] As a detachable and replaceable office consumable, developer cartridges are widely used in imaging developing devices such as printers or copiers. Developers such as toner are generally stored in the developer cartridges. The developer in the developer cartridges is transferred to paper through cooperation with the developing device, thereby realizing the printing function of the developing device.

[0003] In the prior art, a developing box generally includes a powder bin, a waste powder bin and a developing unit. The powder bin and the waste powder bin are arranged on different sides of the developing unit. The powder bin is used to store a developer such as toner. The developer is supplied to the developing unit through a supply mechanism in the powder bin. The developing unit uses the developer to form an image, and the waste powder after the image is formed is stored in the waste powder bin. At present, the structural design of the developing box is generally compact and complex. The powder bin and the waste powder bin are arranged adjacent to the developing unit, and the shapes of the powder bin and the waste powder bin are adapted to the shape of the developing unit.

[0004] However, the powder feeding capacity of current developer cartridges is relatively low. Summary of the invention

[0005] The invention provides a developing box which improves the powder feeding capacity.

[0006] The developing box provided by the present invention comprises a developing component and a powder storage component, and the developing component and the powder storage component are detachably connected.

[0007] Among them, the developing component includes a first powder bin, a first waste powder bin and a developing unit, the first powder bin is used to supply toner to the developing unit, and the first waste powder bin is used to receive waste toner output by the developing unit; the powder storage component includes a shell, and the shell has a second powder bin and a second waste powder bin, the second powder bin is connected with the first powder bin, and the second waste powder bin is connected with the first waste powder bin, and the height of the second powder bin relative to the second waste powder bin in the vertical direction is higher than the height of the first powder bin relative to the second waste powder bin in the vertical direction.

[0008] As an optional manner, in the developer box provided by the present invention, the second waste powder bin and the first waste powder bin are matched in height in the vertical direction.

[0009] As an optional manner, the developer box provided by the present invention, the second powder bin has at least one toner output port, the first end of the toner output port is connected to the second powder bin, the second end of the toner output port passes through the second waste powder bin and is connected to the first powder bin.

[0010] As an optional manner, in the developer box provided by the present invention, the first end of the toner outlet is connected to the bottom wall of the second powder bin, and the second end of the toner outlet extends downward to be connected to the first powder bin.

[0011] As an optional manner, the developing box provided by the present invention has a shell including a first shell, a second shell and a third shell. The first shell and the second shell together enclose a hollow cavity. The third shell is arranged in the hollow cavity and divides the hollow cavity into a second powder bin and a second waste powder bin.

[0012] As an optional manner, the present invention provides a developing box, wherein the first waste powder bin has at least one waste powder output port, and the second waste powder bin has at least one waste powder input port, and the waste powder input port and the waste powder output port are correspondingly arranged to connect the second waste powder bin and the first waste powder bin.

[0013] As an optional manner, in the developer box provided by the present invention, a powder feeding mechanism is provided in the second powder bin, and the powder feeding mechanism is used to feed the toner in the second powder bin to the toner output port.

[0014] As an optional manner, the developing box provided by the present invention, the powder feeding mechanism includes a first powder feeding assembly and a second powder feeding assembly, the first powder feeding assembly includes two parallel first rotating shafts and a conveyor belt wound around the outside of the two first rotating shafts, the first end of the conveyor belt extends into the interior of the second powder bin, the second end of the conveyor belt extends to the toner output port, and the conveying direction of the conveyor belt points to the toner output port; the second powder feeding assembly includes a second rotating shaft and a blade connected to the second rotating shaft, the blade can rotate under the drive of the second rotating shaft to move the toner to the first powder feeding assembly.

[0015] As an optional embodiment, the developing box provided by the present invention also includes a third powder bin, which is arranged on the side of the second powder bin, and the third powder bin is connected to the second powder bin, and the third powder bin has a toner adding port connected to the outside of the shell; the second rotating shaft extends into the third powder bin, and a spiral blade is provided on the second rotating shaft, and the spiral blade is located in the third powder bin, and is used to deliver the toner added in the third powder bin into the second powder bin under the drive of the second rotating shaft.

[0016] As an optional method, the developing box provided by the present invention also includes a driving unit, which is installed on the powder storage assembly and is used to drive the powder feeding mechanism; the driving unit includes a first gear, a second gear and a third gear, the first gear is connected to the second gear through a synchronous belt, and is used to drive the first powder feeding assembly to rotate, the second gear is meshed with the third gear, and the third gear is used to drive the second powder feeding assembly to rotate.

[0017] As an optional manner, in the developer box provided by the present invention, a waste toner export mechanism is provided in the first waste toner bin, and the waste toner export mechanism is used to deliver the waste toner to the waste toner output port.

[0018] The present invention provides a developing box, comprising a developing assembly and a powder storage assembly, wherein the developing assembly is detachably connected to the powder storage assembly. The developing assembly comprises a first powder bin, a first waste powder bin and a developing unit, wherein the first powder bin is used to supply carbon powder to the developing unit, and the first waste powder bin is used to receive waste carbon powder output by the developing unit; the powder storage assembly comprises a shell, wherein a second powder bin and a second waste powder bin are provided in the shell; the first waste powder bin is connected to the second waste powder bin, and the relative height of the second powder bin is higher than the relative height of the first powder bin, so that powder feeding is more convenient, thereby improving the powder feeding capacity of the developing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a structural schematic diagram of a developing box provided according to an embodiment of the present application;

[0021] Figure 2 is a cross-sectional view of a developing box provided according to an embodiment of the present application;

[0022] Figure 3 It is a structural schematic diagram of a powder storage assembly of a developer cartridge provided according to an embodiment of the present application;

[0023] Figure 4 An exploded view of a powder storage assembly of a developer cartridge provided according to an embodiment of the present application;

[0024] Figure 5 It is a schematic structural diagram of a driving unit in a developing box provided according to an embodiment of the present application.

[0025] Description of reference numerals:

[0026] 1-developer box;

[0027] 10-developing assembly;

[0028] 11-developing unit;

[0029] 12- first powder bin;

[0030] 121-toner input port;

[0031] 13-first waste toner bin;

[0032] 131-waste powder outlet;

[0033] 132-waste powder export mechanism;

[0034] 20-powder storage component;

[0035] 21-housing;

[0036] 211- first housing;

[0037] 212- second housing;

[0038] 213- third shell;

[0039] 22- second powder bin;

[0040] 221-toner output port;

[0041] 23- second waste toner bin;

[0042] 231-waste powder input port;

[0043] 24- powder feeding mechanism;

[0044] 241-first powder feeding assembly;

[0045] 2411-first rotation axis;

[0046] 2412-Conveyor belt;

[0047] 2412a-first end;

[0048] 2412b-second end;

[0049] 242-second powder feeding assembly;

[0050] 2421-second rotation axis;

[0051] 2422-leaf;

[0052] 2423-Spiral blade;

[0053] 25-side end cover;

[0054] 30- drive unit;

[0055] 31- first gear;

[0056] 32 - second gear;

[0057] 33 - third gear;

[0058] 34-timing belt;

[0059] 40-The third powder bin. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0061] First, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0062] Secondly, it should be noted that in the description of the present invention, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0063] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0066] As a detachable and replaceable office supplies, the developer box is widely used in imaging and developing devices such as printers or copiers. The developer box generally stores a developer such as toner. The developer box cooperates with the developing device to transfer the developer in the developer box to the paper, thereby realizing the printing function of the developing device. In the prior art, the developer box generally includes a powder bin, a waste powder bin and a developing unit. The powder bin and the waste powder bin are arranged on different sides of the developing unit. The powder bin is used to store a developer such as toner. The developer is supplied to the developing unit through a supply mechanism in the powder bin. The developing unit uses the developer to form an image, and the waste powder after the image is formed is stored in the waste powder bin. At present, the structural design of the developer box is generally compact and complex. The powder bin and the waste powder bin are arranged adjacent to the developing unit, and the shapes of the powder bin and the waste powder bin are adapted to the shape of the developing unit. However, the current structure of the developer box is relatively compact, and it is easy to get stuck when conveying toner, and the powder delivery capacity is low.

[0067] In order to solve the above problems, an embodiment of the present invention provides a developer box, which increases the powder feeding capacity of the powder box.

[0068] Figure 1 It is a structural schematic diagram of a developing box provided according to an embodiment of the present application; Figure 2 is a cross-sectional view of a developing box provided according to an embodiment of the present application; Figure 3 It is a structural schematic diagram of a powder storage assembly of a developer cartridge provided according to an embodiment of the present application; Figure 4 An exploded view of a powder storage assembly of a developer cartridge provided according to an embodiment of the present application; Figure 5 FIG. 1 is a schematic diagram of a driving unit in a developing box according to an embodiment of the present application. Figure 1-Figure 5 As shown, this embodiment provides a developing box 1, including: a developing component 10 and a powder storage component 20, and the developing component 10 and the powder storage component 20 are detachably connected.

[0069] Among them, the developing component 10 includes a first powder bin 12, a first waste powder bin 13 and a developing unit 11, the first powder bin 12 is used to supply toner to the developing unit 11, and the first waste powder bin 13 is used to receive the waste toner output by the developing unit 11; the powder storage component 20 includes a shell 21, and the shell 21 has a second powder bin 22 and a second waste powder bin 23; the second powder bin 22 is connected to the first powder bin 12, and the second waste powder bin 23 is connected to the first waste powder bin 13, and the height of the second powder bin 22 relative to the second waste powder bin 23 in the vertical direction is higher than the height of the first powder bin 12 relative to the second waste powder bin 23 in the vertical direction, so as to facilitate the toner in the second powder bin 22 to enter the first powder bin 12, thereby improving the powder feeding capacity.

[0070] Specifically, the developing unit 11 includes a photosensitive drum, which is pre-charged and forms a latent image under light. The toner in the first toner bin 12 is adsorbed onto the rotating photosensitive drum under the action of the charge to form an image, which can then be transferred to paper, and the residual toner on the continuously rotating photosensitive drum is cleaned into the first waste toner bin 13. The specific structure and working method of the developing unit 11 are prior art and will not be described in detail here.

[0071] Specifically, the developing component 10 and the powder storage component 20 are detachably connected. When the developing component 10 and the powder storage component 20 are connected, the connecting portion of the developing component 10 and the powder storage component 20 needs to be sealed to avoid leakage of carbon powder. For example, a sealing rubber ring is provided at the connecting portion of the developing component 10 and the powder storage component 20 to ensure the sealing of the connecting portion of the developing component 10 and the powder storage component 20. This embodiment does not impose any restrictions on this.

[0072] Among them, the first powder bin 12 and the first waste powder bin 13 of the developing component 10 are relatively independent closed cavities, and their structures are adapted to the developing unit 11. Similarly, the second powder bin 22 and the second waste powder bin 23 of the powder storage component 20 are also relatively independent cavities. Both of them are spatial extensions of the first powder bin 12 and the first waste powder bin 13, and are connected to the first powder bin 12 and the first waste powder bin 13 respectively. The carbon powder in the second powder bin 22 can be supplemented to the first powder bin 12, and the waste carbon powder in the first waste powder bin 13 can also be transported to the second waste powder bin 23, which increases the storage space for carbon powder and waste carbon powder to a certain extent.

[0073] Optionally, at least one threaded hole is provided on the outer surface of the developing component 10, and correspondingly, at least one through hole is provided at the position where the powder storage component 20 cooperates with the developing component 10, and the through hole corresponds one-to-one with the threaded hole on the outer surface of the developing component 10. During assembly, a screw is passed through the through hole on the powder storage component 20 and screwed into the threaded hole on the developing component 10 to achieve a fixed connection between the developing component 10 and the powder storage component 20.

[0074] In this embodiment, the developing assembly 10 and the powder storage assembly 20 are connected. At this time, the first powder bin 12 and the first waste powder bin 13 in the developing assembly 10 are respectively connected with the second powder bin 22 and the second waste powder bin 23 in the powder storage assembly 20, so that the first powder bin 12 is replenished with toner through the second powder bin 22, and the waste toner output by the first waste powder bin 13 is received through the second waste powder bin 23. Specifically, toner is stored in the second powder bin 22, and the second powder bin 22 is connected with the first powder bin 12. The second powder bin 22 replenishes toner for the first powder bin 12, and the toner is developed through the developing unit 11 in the developing assembly 10. The waste toner after the development process is transported to the first waste toner bin 13 on the upper side of the developing assembly 10. Since the first waste toner bin 13 is connected to the second waste toner bin 23, the waste toner in the first waste toner bin 13 will also enter the second waste toner bin 23, thereby completing the toner transportation process. Among them, relative to the second waste toner bin 23, the height of the second powder bin 22 in the vertical direction is higher than that of the first powder bin 12. When the toner in the second powder bin 22 is replenished into the first powder bin 12, a certain gravity effect can be used to make the toner better enter the first powder bin 12, thereby improving the powder delivery capacity.

[0075] The present embodiment provides a developing box 1, by setting a detachable connection between the developing component 10 and the powder storage component 20, the first powder bin 12 in the developing component 10 is connected with the second powder bin 22 in the powder storage component 20, the first waste powder bin 13 in the developing component 10 is connected with the second waste powder bin 23 in the powder storage component 20, and the relative height of the second powder bin 22 is higher than the relative height of the first powder bin 12, so that the second powder bin 22 is more convenient in feeding powder to the first powder bin 12, thereby improving the powder feeding capacity of the developing box.

[0076] Optionally, the heights of the second waste powder bin 23 and the first waste powder bin 13 in the vertical direction match each other, wherein, when the developing assembly 10 and the powder storage assembly 20 are connected, the second waste powder bin 23 is docked with the first waste powder bin 13. At this time, the heights of the second waste powder bin 23 and the first waste powder bin 13 in the vertical direction match each other, and the waste toner in the first waste powder bin 13 can enter the second waste powder bin 23 more smoothly.

[0077] Optionally, the second powder bin 22 has at least one toner outlet 221 , a first end of the toner outlet 221 is connected to the second powder bin 22 , and a second end of the toner outlet 221 passes through the second waste toner bin 23 and is connected to the first powder bin 12 .

[0078] It can be understood that the second powder bin 22 is arranged at the upper position of the second waste powder bin 23, and when the developing assembly 10 and the powder storage assembly 20 are docked, the first powder bin 12 is located at the lower position of the second waste powder bin 23. In order to transport the toner in the second powder bin 22 to the first powder bin 12, a toner output port 221 is provided on the second powder bin 22, which penetrates the second waste powder bin 23. The toner output port 221 is connected to the first powder bin 12, so that the toner in the second powder bin 22 located at the upper part of the second waste powder bin 23 is transported to the first powder bin 12 located at the lower part of the second waste powder bin 23.

[0079] Optionally, the first end of the toner output port 221 is connected to the bottom wall of the second powder bin 22, and the second end of the toner output port 221 extends downward to be connected to the first powder bin 12, that is, one end of the toner output port 221 is connected to the bottom wall of the second powder bin 22, and the other end of the toner output port 221 passes through and extends out of the second waste powder bin 23, and the other end of the toner output port 221 is connected to the first powder bin 12, so that the toner in the second powder bin 22 can be better transported from the toner output port 221 to the first powder bin 12.

[0080] As an optional method, the developing box 1 provided in an embodiment of the present invention, the shell 21 includes a first shell 211, a second shell 212 and a third shell 213, the first shell 211 and the second shell 212 together enclose a hollow cavity, the third shell 213 is arranged in the hollow cavity, and divides the hollow cavity into a second powder bin 22 and a second waste powder bin 23.

[0081] Specifically, the first shell 211 and the second shell 212 together form a hollow cavity, and the hollow cavity together enclosed by the first shell 211 and the second shell 212 is divided into a second powder bin 22 and a second waste powder bin 23 by the third shell 213, that is, the upper inner wall of the third shell 213 and the partial outer wall of the second shell 212 facing the first shell 211 together form the second powder bin 22, and the lower inner wall of the third shell 213 and the partial outer wall of the first shell 211 facing the second shell 212 together form the second waste powder bin 23.

[0082] Specifically, the opening edge of the first shell 211 corresponds to the opening edge of the second shell 212, and the second shell 212 is covered on the first shell 211, so that the hollow cavity is relatively closed; the third shell 213 is directly arranged in the hollow cavity, and divides the hollow cavity into two cavity structures that are not connected to each other, wherein the upper cavity is the second powder bin 22, and the lower cavity is the second waste powder bin 23.

[0083] Optionally, the first waste powder bin 13 has at least one waste powder output port 131 , and the second waste powder bin 23 has at least one waste powder input port 231 , and the waste powder input port 231 is correspondingly arranged with the waste powder output port 131 to connect the second waste powder bin 23 and the first waste powder bin 13 .

[0084] Among them, if there is only one waste powder input port 231 and one waste powder output port 131, they are respectively arranged in the middle position of the developing component 10 and the powder storage component 20; if there are multiple toner input ports 121 and 221, they are respectively arranged symmetrically on the developing component 10 and the powder storage component 20.

[0085] Optionally, the shapes and sizes of the waste powder input port 231 and the waste powder output port 131 are adapted to each other so that they can be docked. The waste powder input port 231 is opened on one side of the connection between the first shell body 211 and the second shell body 212, and the edge of the waste powder input port 231 has a protruding structure. The outer wall size of the protruding structure is adapted to the size of the waste powder output port 131. When the waste powder input port 231 is connected to the waste powder output port 131, the protruding structure on the waste powder input port 231 is inserted into the waste powder output port 131, and the insertion direction is from top to bottom. At the same time, a sealing rubber ring can be provided at the interface. In this way, when the toner in the first waste powder bin 13 is transported to the second waste powder bin 23, leakage of toner can be avoided.

[0086] As an optional method, the developing box 1 provided in the embodiment of the present invention is provided with a powder feeding mechanism 24 in the second powder bin 22, and the powder feeding mechanism 24 is used to feed the carbon powder in the second powder bin 22 to the carbon powder output port 221, thereby transporting the carbon powder in the second powder bin 22 to the first powder bin 12 through the carbon powder output port 221, thereby replenishing the carbon powder in the first powder bin 12.

[0087] Optionally, the powder feeding mechanism 24 includes a first powder feeding component 241 and a second powder feeding component 242, the first powder feeding component 241 includes two parallel first rotating shafts 2411 and a conveyor belt 2412 wound around the outside of the two first rotating shafts 2411, the first end 2412a of the conveyor belt 2412 extends into the second powder bin 22, the second end 2412b of the conveyor belt 2412 extends to the carbon powder output port 221, and the conveying direction of the conveyor belt 2412 points to the carbon powder output port 221, the width of the transmission belt 2412 is adapted to the width of the second powder bin 22, so that the first powder feeding component 241 can cover the second powder bin 22 as much as possible, thereby improving the powder feeding efficiency of the powder feeding component 241; the second powder feeding component 242 includes a second rotating shaft 2421 and a blade 2422 connected to the second rotating shaft 2421, the blade 2422 can rotate under the drive of the second rotating shaft 2421 to move the carbon powder to the first powder feeding component 241. Specifically, the second powder delivery component 242 is located inside the second powder bin 22, that is, the second powder delivery component 242 is located on the first end 2412a side of the first powder delivery component 241, and the blade 2422 is a plate-like structure, and the length of the blade 2422 along the axis direction of the second rotating shaft 2421 is equal to the length of the conveyor belt 2412 along the axis direction of the first rotating shaft 2411. In addition, the rotation direction of the second rotating shaft 2421 is the same as the rotation direction of the first rotating shaft 2411, so that the second rotating shaft 2421 drives the blade 2422 to move the carbon powder deep inside the second powder bin 22 onto the transmission belt 2412.

[0088] As an optional method, the developing box 1 provided in an embodiment of the present invention further includes a third powder bin 40. The third powder bin 30 is arranged on the side of the second powder bin 22, and the third powder bin 40 is connected to the second powder bin 22. The third powder bin 40 can be provided with a toner adding port connected to the outside of the shell.

[0089] The third powder bin 40 can be integrally formed with the powder storage assembly 20 or can be separately provided. An inclined structure can be provided at the bottom of the third powder bin 40 so that the carbon powder in the third powder bin 40 can flow freely into the second powder bin 22 .

[0090] In addition, the second rotating shaft 2421 can extend into the third powder bin 40, and a spiral blade 2423 is set on the second rotating shaft 2421. The spiral blade 2423 is located in the third powder bin 40 and rotates driven by the second rotating shaft 2421 to stir the carbon powder in the third powder bin 40 and send it into the second powder bin 22.

[0091] Optionally, the developing box 1 provided in this embodiment also includes a driving unit 30, which is installed on the powder storage assembly 20, and the driving unit 30 is used to drive the powder feeding mechanism 24; the driving unit 30 includes a first gear 31, a second gear 32 and a third gear 33, the first gear 31 is connected to the second gear 32 through a synchronous belt 34, and is used to drive the first powder feeding assembly 241 to rotate, the second gear 32 is meshed with the third gear 33, and the third gear 33 is used to drive the second powder feeding assembly 242 to rotate.

[0092] Optionally, a first gear 31 is installed at one end of a first rotating shaft 2411 in the first powder delivery assembly 241 that faces one end of the carbon powder output port 221, a second gear 32 is also installed at one end of a second rotating shaft 2421 in the second powder delivery assembly 242, and similarly, a third gear 33 is also installed at one end of a third rotating shaft 2431 in the third powder delivery assembly 243. The first gear 31, the second gear 32, and the third gear 33 are all located outside the second powder bin 22, and the first gear 31, the second gear 32, and the third gear 33 are located on the same side of the second powder bin 22. In addition, a side end cover 25 is also provided on the same side to cover the outside of the first gear 31, the second gear 32, and the third gear 33.

[0093] Specifically, the second gear 32 is meshed with the third gear 33, and the second gear 32 drives the third gear 33 to rotate, and the second gear 32 drives the first gear 31 to rotate through the synchronous belt 34, and the synchronous belt 34 is installed on the first rotating shaft 2411 and the second rotating shaft 2421. When the developing cartridge 1 is installed on the printing device, the driving unit in the printing device drives the second gear 32 to rotate, thereby realizing the operation of the entire powder feeding mechanism 24.

[0094] As an optional method, the developer box 1 provided in the embodiment of the present invention is provided with a waste powder export mechanism 132 in the first waste powder bin 13, and the waste powder export mechanism 132 is used to deliver the waste toner to the waste powder output port 131, thereby transferring the waste toner in the first waste powder bin 13 to the second waste powder bin 23. The waste powder export structure 132 can adopt a structure similar to the second powder feeding component 242, that is, the blades are driven to rotate by the rotating shaft, thereby moving the waste toner, which will not be repeated here.

[0095] An embodiment of the present invention provides a developing box 1, which includes a developing assembly 10 and a powder storage assembly 20. The developing assembly 10 and the powder storage assembly 20 are detachably connected. Among them, the developing component 10 includes a first powder bin 12, a first waste powder bin 13 and a developing unit 11, the first powder bin 12 is used to supply toner to the developing unit 11, and the first waste powder bin 12 is used to receive the waste toner output by the developing unit 11; the powder storage component 20 includes a shell 21, and the shell 21 has a second powder bin 22 and a second waste powder bin 23; the second powder bin 22 is connected to the first powder bin 12 through a toner output port 221, and the second waste powder bin 23 is connected to the first waste powder bin 13, so that the first powder bin 12 is replenished with toner through the second powder bin 22, and the waste toner output by the first waste powder bin 13 is received through the second waste powder bin 23. The process of replenishing toner is realized by the powder feeding mechanism 24, and the conveying of waste toner is realized by the waste powder export mechanism 132. In addition, a third powder bin 40 is also arranged on the side of the second powder bin 22 to replenish toner for the second powder bin 22. Therefore, the powder storage space of the developing box 1 is increased, the powder storage capacity of the developing box 1 is greatly improved, and the powder delivery capacity of the developing box is also improved.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A developing box, characterized in that: include: A developing assembly and a powder storage assembly, wherein the developing assembly and the powder storage assembly are detachably connected; The developing assembly comprises a first toner bin, a first waste toner bin and a developing unit, wherein the first toner bin is used to supply toner to the developing unit, and the first waste toner bin is used to receive waste toner output by the developing unit; The powder storage assembly comprises a shell, wherein a second powder bin and a second waste powder bin are disposed in the shell, wherein the second powder bin is communicated with the first powder bin, and the second waste powder bin is communicated with the first waste powder bin, and a height of the second powder bin relative to the second waste powder bin in a vertical direction is higher than a height of the first powder bin relative to the second waste powder bin in a vertical direction; The shell includes a first shell, a second shell and a third shell. The first shell and the second shell together enclose a hollow cavity. The third shell is disposed in the hollow cavity and separates the hollow cavity into the second powder bin and the second waste powder bin.

2. The developing cartridge according to claim 1, characterized in that: The second waste toner bin and the first waste toner bin are vertically matched to each other.

3. The developing cartridge according to claim 1, characterized in that: The second powder bin has at least one toner output port, a first end of the toner output port is communicated with the second powder bin, and a second end of the toner output port passes through the second waste toner bin and is communicated with the first powder bin.

4. The developing cartridge according to claim 3, characterized in that: The first end of the toner output port is communicated with the bottom wall of the second powder bin, and the second end of the toner output port extends downward to be communicated with the first powder bin.

5. The developing cartridge according to any one of claims 1 to 4, characterized in that: The first waste powder bin has at least one waste powder output port, and the second waste powder bin has at least one waste powder input port. The waste powder input port and the waste powder output port are correspondingly arranged to connect the second waste powder bin and the first waste powder bin.

6. The developing cartridge according to claim 3, characterized in that: A powder feeding mechanism is arranged in the second powder bin, and the powder feeding mechanism is used to feed the carbon powder in the second powder bin to the carbon powder output port.

7. The developing cartridge according to claim 6, wherein: The powder feeding mechanism comprises a first powder feeding assembly and a second powder feeding assembly, wherein the first powder feeding assembly comprises two first rotating shafts arranged in parallel and a conveyor belt wound around the outside of the two first rotating shafts, wherein the first end of the conveyor belt extends into the second powder bin, the second end of the conveyor belt extends toward the toner output port, and the conveying direction of the conveyor belt points to the toner output port; The second powder delivery assembly includes a second rotating shaft and a blade connected to the second rotating shaft. The blade can rotate under the drive of the second rotating shaft to move the carbon powder to the first powder delivery assembly.

8. The developing cartridge according to claim 7, wherein: The device further comprises a third powder bin, which is arranged on the side of the second powder bin and is in communication with the second powder bin, and has a toner adding port in communication with the outside of the housing; The second rotating shaft extends into the third powder bin, and a spiral blade is provided on the second rotating shaft. The spiral blade is located in the third powder bin and is used to deliver the carbon powder added to the third powder bin into the second powder bin under the drive of the second rotating shaft.

9. The developing cartridge according to claim 7, wherein: It also includes a driving unit, which is installed on the powder storage assembly and is used to drive the powder feeding mechanism; The driving unit includes a first gear, a second gear and a third gear. The first gear is connected to the second gear through a synchronous belt and is used to drive the first powder feeding assembly to rotate. The second gear is meshed with the third gear, and the third gear is used to drive the second powder feeding assembly to rotate.

10. The developing cartridge according to claim 5, characterized in that: A waste toner export mechanism is provided in the first waste toner bin, and the waste toner export mechanism is used to send waste toner to the waste toner output port.

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