Toner cartridges and printers

Abstract

The present invention provides a toner cartridge and a printer, the toner cartridge comprises a box body and a stirring frame, a powder bin is arranged inside the box body, a power receiving head is arranged on the first end wall of the box body, the stirring frame is rotatably installed in the powder bin, wherein a first transmission wheel is arranged on the power receiving head, the rotation axis of the first transmission wheel is parallel to the rotation axis of the stirring frame, a second transmission wheel is arranged at the first end of the stirring frame, the second transmission wheel is located outside the powder bin and at the first end wall, the toner cartridge also comprises a flexible member, the flexible member is wound around the first transmission wheel and the second transmission wheel, the first transmission wheel drives the second transmission wheel to rotate through the flexible member. The printer is provided with the above-mentioned toner cartridge, which can optimize its own transmission system, reduce the torque on the power receiving head and increase the powder bin capacity.

Description

Technical Field

[0001] The invention relates to the technical field of electronic photographic imaging, in particular to a toner cartridge and a printer provided with the toner cartridge. Background Art

[0002] The existing toner cartridge generally includes a box body, a stirring frame, a powder feeding roller and a developing roller. Among them, the box body has a powder bin, and a driving force receiving head and a transmission gear connected to the driving head of the printer are arranged on the first end wall of the box body, and a detection wheel connected to the detection mechanism of the printer is arranged on the second end wall of the box body. The stirring frame is rotatably mounted in the powder bin, and the first end of the stirring frame is provided with a stirring frame gear located outside the first end wall, and the transmission gear is respectively meshed with the stirring gear and the gear structure of the driving force receiving head. The second end of the stirring frame is located at the driving wheel outside the second end wall, and the driving wheel is meshed with the gear structure on the detection wheel. The powder feeding roller is rotatably mounted in the powder bin and located at the outlet of the powder bin, and one end of the powder feeding roller is provided with a powder feeding roller gear located outside the first end wall, and the powder feeding roller gear is meshed with the gear structure of the driving force receiving head. The developing roller is rotatably mounted on the box body, and the developing roller is located outside the powder bin and at the powder outlet. One end of the developing roller is provided with a developing roller gear located outside the first end wall, and the developing roller gear is meshed with the gear structure of the driving force receiving head.

[0003] When the driving force receiving head is driven by the driving head of the printer, the driving force receiving head must not only drive the stirring frame gear to rotate through the transmission gear, so that the stirring frame gear drives the stirring frame to rotate, and the stirring frame drives the detection wheel to rotate through the driving wheel, but also directly drive the powder feeding roller gear and the developing roller gear to rotate, so that the powder feeding roller gear drives the powder feeding roller to rotate, and the developing roller gear drives the developing roller to rotate. Therefore, after a series of rotational transmission, the driving force receiving head will be subjected to very large rotational torsional force and torque, causing the transmission head of the printer to be easily damaged.

[0004] In addition, when the stirring frame rotates, the rotating blades on it need to continuously stir the toner in the powder bin, so that when there is too much toner in the powder bin, it is easy to cause the stirring frame to overload and rotate, which can easily cause the stirring frame gear to burn. Furthermore, when the stirring frame rotates, it is also necessary to drive the driving wheel to drive the detection wheel to rotate, but based on the above situation, it is easy for the printer's detection mechanism to fail to accurately and effectively identify the toner cartridge. In addition, the complex gear transmission system at the first end wall of the toner cartridge will also affect the capacity of the powder bin. Summary of the invention

[0005] In order to solve the above problems, the main purpose of the present invention is to provide a toner cartridge which optimizes the transmission system, reduces the torque applied to the power receiving head and increases the powder bin capacity.

[0006] Another object of the present invention is to provide a printer provided with the above-mentioned toner cartridge.

[0007] In order to achieve the main purpose of the present invention, the present invention provides a toner cartridge, including a box body and a stirring frame, a powder bin is arranged inside the box body, a power receiving head is arranged on the first end wall of the box body, and the stirring frame is rotatably installed in the powder bin, wherein a first transmission wheel is arranged on the power receiving head, and the rotation axis of the first transmission wheel is parallel to the rotation axis of the stirring frame, a second transmission wheel is arranged at the first end of the stirring frame, and the second transmission wheel is located outside the powder bin and at the first end wall, and the toner cartridge also includes a flexible member, which is wound around the first transmission wheel and the second transmission wheel, and the first transmission wheel drives the second transmission wheel to rotate through the flexible member.

[0008] As can be seen from the above, the above structural design replaces the gear structure, stirring rack gear and transmission gear on the power receiving head in the traditional toner cartridge by the first transmission wheel, the second transmission wheel and the flexible member, thereby eliminating the transmission gear in the transmission system of the traditional toner cartridge, simplifying the structure of the transmission system, avoiding excessive rotational twisting force and torque on the power receiving head, and protecting the driving head of the printer. In addition, it can also solve the problem of tooth burning in the transmission system when the stirring rack is overloaded. Furthermore, since the transmission gear in the transmission system is eliminated, the space occupied by at least a part of the transmission gear is released, thereby effectively increasing the capacity of the powder bin. When the toner cartridge is installed on the printer, the power receiving head is connected to the driving head of the printer, so that when the driving head drives the power receiving head to rotate, the first transmission wheel on the power receiving head drives the second transmission wheel to rotate through the flexible member, so that the second transmission wheel drives the stirring rack to rotate, so that while ensuring the normal rotation of the stirring rack, the driving wheel at the second end of the stirring rack can reliably drive the detection wheel on the second end wall of the toner cartridge to rotate, thereby improving the detection accuracy of the toner cartridge by the detection mechanism of the printer.

[0009] A preferred solution is that the first transmission wheel is a first belt pulley, the second transmission wheel is a second belt pulley, and the flexible member is a transmission belt.

[0010] As can be seen from the above, setting the transmission structure between the first transmission wheel, the second transmission wheel and the flexible member as a belt transmission structure can improve the stability of the transmission between the first transmission wheel, the second transmission wheel and the flexible member, and can simplify the structure of the power receiving head and the second transmission wheel, reduce the production cost of the toner cartridge, and can also reduce the noise during the transmission of the first transmission wheel, the second transmission wheel and the flexible member. Furthermore, the same-direction rotation control of the power receiving head and the stirring frame can also be achieved through the transmission belt, which solves the problem that the rotational twisting force and torque of the power receiving head will increase when the traditional toner cartridge uses a transmission gear to control the power receiving head and the stirring frame to rotate in the same direction, and protects the power receiving head and the drive head of the printer.

[0011] A further solution is that both the first pulley and the second pulley are synchronous pulleys, and the transmission belt is a synchronous belt; or both the first pulley and the second pulley are flat pulleys, and the transmission belt is a flat belt; or both the first pulley and the second pulley are V-pullways, and the transmission belt is a V-belt; or both the first pulley and the second pulley are round pulleys, and the transmission belt is a round belt.

[0012] As can be seen from the above, the types of the first pulley, the second pulley, and the transmission belt can be adaptively adjusted according to factors such as the design requirements, usage requirements, and production costs of the toner cartridge.

[0013] A further solution is that the reference diameter of the first pulley is 0.5 to 2 times the reference diameter of the second pulley.

[0014] As can be seen from the above, by changing the ratio of the base diameter of the first pulley to the base diameter of the second pulley, the transmission ratio between the power receiving head and the stirring frame can be changed, so that the toner cartridge can be suitable for printers with different output requirements, different usage requirements, etc., thereby improving the applicability of the toner cartridge.

[0015] A further solution is that the reference diameter of the first pulley is equal to the reference diameter of the second pulley, and the wrap angle of the transmission belt on the first pulley and the wrap angle of the transmission belt on the second pulley are both 180°; or the reference diameter of the first pulley is smaller than the reference diameter of the second pulley, and the wrap angle of the transmission belt on the first pulley is greater than or equal to 150° and less than 180°; or the reference diameter of the first pulley is greater than the reference diameter of the second pulley, and the wrap angle of the transmission belt on the second pulley is greater than or equal to 150° and less than 180°.

[0016] It can be seen from the above that by designing the wrap angle of the transmission belt on the first pulley and / or the second pulley, sufficient transmission capacity can be achieved between the first pulley, the second pulley and the transmission belt, thereby ensuring the transmission reliability of the belt transmission mechanism.

[0017] Another preferred solution is that the first transmission wheel is a first sprocket, the second transmission wheel is a second sprocket, and the flexible member is a chain.

[0018] As can be seen from the above, setting the transmission structure between the first transmission wheel, the second transmission wheel and the flexible member as a chain transmission structure can not only improve the reliability of the transmission between the first transmission wheel, the second transmission wheel and the flexible member, but also improve the overload capacity of the transmission system, so that when the stirring frame is overloaded, the transmission system can still maintain normal operation. Furthermore, the same-direction rotation control of the power receiving head and the stirring frame can also be achieved through the chain, which solves the problem that the traditional toner cartridge uses a transmission gear to control the power receiving head and the stirring frame to rotate in the same direction, which increases the rotational twisting force and torque of the power receiving head, and protects both the power receiving head and the drive head of the printer.

[0019] A further solution is that the chain is a roller chain or a toothed chain.

[0020] As can be seen from the above, the types of the first sprocket, the second sprocket and the chain can be adaptively adjusted according to factors such as the design requirements, usage requirements, and production costs of the toner cartridge.

[0021] A further solution is that the toner cartridge further comprises a tensioning unit, which is arranged at the first end wall and is used to adjust the tensioning force of the flexible member.

[0022] A further solution is that the tensioning unit includes a driving mechanism and a tensioning wheel, the tensioning wheel is installed on the output end of the driving mechanism, and the driving mechanism drives the tensioning wheel to abut against the flexible member and control the tensioning of the flexible member.

[0023] As can be seen from the above, the tensioning unit is used to adjust the tensioning force of the flexible member so that the flexible member can automatically maintain the initial tension, thereby enabling the flexible member to always maintain a reliable transmission capability.

[0024] In order to achieve another object of the present invention, the present invention provides a printer, which includes the above-mentioned toner cartridge.

[0025] It can be seen from the above that the printer provided with the above-mentioned toner cartridge can better avoid damage to the drive head and can improve the detection accuracy of the toner cartridge by the detection mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 1 is a structural diagram of a first embodiment of a toner cartridge of the present invention.

[0027] Figure 2 It is a structural diagram of the first embodiment of the toner cartridge of the present invention after some components are omitted.

[0028] Figure 3 It is a structural diagram of the second embodiment of the first embodiment of the toner cartridge of the present invention after some components are omitted.

[0029] Figure 4 It is a structural diagram of the third embodiment of the first embodiment of the toner cartridge of the present invention after some components are omitted.

[0030] Figure 5 1 is a schematic structural diagram of a sixth embodiment of a toner cartridge of the present invention.

[0031] Figure 6 1 is a schematic structural diagram of a seventh embodiment of a toner cartridge of the present invention.

[0032] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0033] Toner cartridge first embodiment:

[0034] Reference Figure 1 and Figure 2 The toner cartridge 100 comprises a cartridge body 1, a stirring frame 2, a flexible member 3, a powder feeding roller 4, a developing roller 5 and a cover body 6. A powder bin 11 is provided inside the cartridge body 1, and the powder bin 11 is used to store toner. A power receiving head 12 is provided on the first end wall of the cartridge body 1, and the power receiving head 12 can rotate relative to the cartridge body 1 around its own axis. A detection wheel 13 is provided on the second end wall of the cartridge body 1, and the detection wheel 13 can rotate around its own axis, wherein the first end wall and the second end wall are distributed along the axis of the power receiving head 12. When the toner cartridge 100 is installed in the cartridge bin of the printer, the power receiving head 12 is connected to the driving head of the printer, so that the driving head of the printer can drive the power receiving head 12 to rotate, and then drive the stirring frame 2, the powder feeding roller 4 and the developing roller 5 to rotate through the transmission system of the toner cartridge 100, and the detection wheel 13 is connected to the detection mechanism on the printer, so that the detection mechanism of the printer detects the toner cartridge 100 through the detection wheel 13 to obtain parameter information of the toner cartridge 100. In addition, the box body 1 is provided with a powder filling port 14 on the second end wall, and the powder filling port 14 is connected to the powder bin 11 , so that the user can add toner to the box body 1 through the powder filling port 14 to meet the recycling requirements of the toner cartridge 100 .

[0035] Combination Figure 3 The power receiving head 12 is provided with a clamping portion 121, a first transmission wheel 122 and a first gear 123, wherein the clamping portion 121, the first transmission wheel 122 and the first gear 123 are integrally formed. The clamping portion 121 is used for clamping the driving head of the printer so that the driving head of the printer can reliably drive the power receiving head 12 to rotate.

[0036] The stirring frame 2 is rotatably mounted on the box body 1, the main body of the stirring frame 2 is located in the powder bin 11, and the two shaft ends of the stirring frame 2 extend out of the first end wall and the second end wall respectively. A second transmission wheel 21 is provided at the first end of the stirring frame 2, the second transmission wheel 21 is fixedly connected to the stirring frame 2, and the second transmission wheel 21 is located at the first end wall. The axis of the second rotating wheel and the rotation axis of the stirring frame 2 are respectively parallel to the axis of the power receiving head 12.

[0037] The flexible member 3 is wound around the first transmission wheel 122 and the second transmission wheel 21, so that the first transmission wheel 122 can drive the second transmission wheel 21 to rotate through the flexible member 3, so that the second transmission wheel 21 drives the stirring frame 2 to rotate to stir the carbon powder in the powder bin 11, and prevent the carbon powder in the powder bin 11 from solidifying into a block. In this embodiment, the first transmission wheel 122 is a first pulley, the second transmission wheel 21 is a second pulley, the flexible member 3 is a transmission belt, and the first pulley and the second pulley are both synchronous pulleys, and the transmission belt is a synchronous belt. Since the first pulley, the second pulley and the transmission belt are meshed, the transmission ratio between the first pulley, the second pulley and the transmission belt is accurate and the transmission efficiency is high. The first pulley, the second pulley and the transmission belt are used to replace the gear structure, the stirring frame 2 gear and the transmission gear on the power receiving head 12 of the traditional toner cartridge, so that the transmission system of the toner cartridge 100 can be effectively simplified, and the transmission belt can also realize the same-direction rotation control of the power receiving head 12 and the stirring frame 2, which solves the problem that the traditional toner cartridge uses a transmission gear to control the power receiving head 12 and the stirring frame 2 to rotate in the same direction, which increases the rotational twisting force and torque of the power receiving head 12, and protects both the power receiving head 12 and the drive head of the printer.

[0038] Further, the reference diameter of the first pulley is 0.5 to 2 times the reference diameter of the second pulley. In the present embodiment, the reference diameter of the first pulley is equal to the reference diameter of the second pulley, and the wrap angle a1 of the transmission belt on the first pulley and the wrap angle a2 of the transmission belt on the second pulley are both 180 degrees. Of course, in other embodiments, if the reference diameter of the first pulley is not equal to the reference diameter of the second pulley, when the reference diameter of the first pulley is smaller than the reference diameter of the second pulley, the wrap angle a1 of the transmission belt on the first pulley is greater than or equal to 150° and less than 180°, that is, 150°≤a1<180°, and when the reference diameter of the first pulley is greater than the reference diameter of the second pulley, the wrap angle a2 of the transmission belt on the second pulley is greater than or equal to 150° and less than 180°, that is, 150°≤a2<180°. Among them, the transmission ratio between the power receiving head 12 and the stirring frame 2 can be changed by changing the ratio of the base diameter of the first pulley to the base diameter of the second pulley, so that the toner cartridge 100 can be suitable for printers with different output requirements, different usage requirements, etc., thereby improving the application range of the toner cartridge 100. By designing the wrap angle of the transmission belt on the first pulley and / or the second pulley, the first pulley, the second pulley and the transmission belt can have sufficient transmission capacity, thereby ensuring the transmission reliability of the belt transmission mechanism.

[0039] Combination Figure 4A second gear 22 is disposed at the second end of the stirring frame 2, and the second gear 22 is fixedly connected to the stirring frame 2, so that the second gear 22 can rotate along with the rotation of the stirring frame 2. A third gear is disposed on the detection wheel 13, and the axis of the third gear is colinear with the rotation axis of the detection wheel 13. The third gear is meshed with the second gear 22, so that the second gear 22 can drive the detection wheel 13 to rotate through the third gear, so that the detection mechanism of the printer detects the detection wheel 13.

[0040] The powder feeding roller 4 is rotatably mounted on the box body 1 around its own axis, and the powder feeding roller 4 is located in the powder bin 11 and at the powder outlet of the powder bin 11. One end of the powder feeding roller 4 close to the first end wall of the box body 1 extends out of the first end wall, and a powder feeding roller gear 41 is provided on the end, and the powder feeding roller gear 41 is fixedly connected to the powder feeding roller 4, and the powder feeding roller gear 41 is meshed with the first gear 123 on the power receiving head 12, so that the power receiving head 12 can drive the powder feeding roller 4 to rotate through the first gear 123 and the powder feeding roller gear 41, thereby transferring the carbon powder in the powder bin 11 to the developing roller 5.

[0041] The developing roller 5 is rotatably mounted on the box body 1 around its own axis, and is located outside the powder bin 11 and at the outlet of the powder bin 11. The developing roller 5 is adjacent to the powder feeding roller 4 and has received the carbon powder delivered by the powder feeding roller 4. One end of the powder feeding roller 4 close to the first end wall of the box body 1 extends out of the first end wall, and a developing roller gear 51 is provided on the end. The developing roller gear 51 is fixedly connected to the developing roller 5, and the developing roller gear 51 is meshed with the first gear 123 on the power receiving head 12, so that the power receiving head 12 can drive the developing roller 5 to rotate through the first gear 123 and the developing roller gear 51.

[0042] The cover body 6 is detachably mounted on the box body 1, and the cover body 6 covers the developing roller 5 and the powder outlet of the powder bin 11 to protect the developing roller 5 before use and prevent the developing roller 5 from being damaged from being packaged at the factory to being loaded into the printer.

[0043] In summary, the present invention adopts a first transmission wheel, a second transmission wheel and a flexible member to replace the gear structure, the stirring frame gear and the transmission gear on the power receiving head in the traditional toner cartridge through the structural design of the toner cartridge, thereby eliminating the transmission gear in the transmission system of the traditional toner cartridge, simplifying the structure of the transmission system, avoiding excessive rotational twisting force and torque on the power receiving head, and protecting the drive head of the printer. In addition, it can also solve the problem of tooth burning in the transmission system when the stirring frame is overloaded. Furthermore, since the transmission gear in the transmission system is eliminated, at least a part of the space occupied by the transmission gear is released, thereby effectively increasing the capacity of the powder bin.

[0044] Toner cartridge second embodiment:

[0045] The difference between this embodiment and the first embodiment of the toner cartridge is that:

[0046] In this embodiment, the first pulley and the second pulley are both flat pulleys, and the transmission belt is a flat belt. By designing the first pulley, the second pulley and the transmission belt, the structures of the first pulley, the second pulley and the transmission belt are simpler, the processing is more convenient, and the production cost of the toner cartridge can be reduced. It can be seen that the types of the first pulley, the second pulley and the transmission belt can be adaptively adjusted according to the design requirements, use requirements, production costs and other factors of the toner cartridge.

[0047] Toner cartridge third embodiment:

[0048] The difference between this embodiment and the first embodiment of the toner cartridge is that:

[0049] In this embodiment, the first pulley and the second pulley are both V-pulleys, and the transmission belt is a V-belt. By designing the first pulley, the second pulley and the transmission belt, the structures of the first pulley, the second pulley and the transmission belt are simpler, the processing is more convenient, and the production cost of the toner cartridge can be reduced. In addition, setting the first pulley and the second pulley as V-pulleys and the transmission belt as a V-belt can also increase the friction between the transmission belt and the first pulley and the second pulley to ensure the transmission capacity of the V-belt. It can be seen that the types of the first pulley, the second pulley and the transmission belt can be adaptively adjusted according to factors such as the design requirements, use requirements, and production costs of the toner cartridge.

[0050] Toner cartridge fourth embodiment:

[0051] The difference between this embodiment and the first embodiment of the toner cartridge is that:

[0052] In this embodiment, the first pulley and the second pulley are both round pulleys, and the transmission belt is a round belt. By designing the first pulley, the second pulley and the transmission belt, the structures of the first pulley, the second pulley and the transmission belt are simpler, and the processing and disassembly are more convenient, and the production cost of the toner cartridge can be reduced. It can be seen that the types of the first pulley, the second pulley and the transmission belt can be adaptively adjusted according to the design requirements, use requirements, production costs and other factors of the toner cartridge.

[0053] Toner cartridge fifth embodiment:

[0054] The difference between this embodiment and the first embodiment of the toner cartridge is that:

[0055] In the present embodiment, the first transmission wheel is a first sprocket wheel, the second transmission wheel is a second sprocket wheel, and the flexible member is a chain, and the transmission structure between the first transmission wheel, the second transmission wheel and the flexible member is set as a chain transmission structure, which can not only improve the reliability of the transmission between the first transmission wheel, the second transmission wheel and the flexible member, but also improve the overload capacity of the transmission system, so that when the stirring frame is overloaded, the transmission system can still maintain normal operation. Furthermore, the same direction rotation control of the power receiving head and the stirring frame can also be achieved through the chain, which solves the problem that the rotational twisting force and torque of the power receiving head will increase when the traditional toner cartridge uses a transmission gear to control the power receiving head and the stirring frame to rotate in the same direction, and protects the power receiving head and the driving head of the printer. Wherein, the chain can be a roller chain or a toothed chain, and the first sprocket wheel, the second sprocket wheel and the chain are preferably made of plastic.

[0056] Toner cartridge sixth embodiment:

[0057] The difference between this embodiment and the first to fifth embodiments of the toner cartridge is that:

[0058] Combination Figure 5 In this embodiment, the toner cartridge further includes a tensioning unit 7, which is disposed at the first end wall of the box body 73 and is used to adjust the tension of the flexible member 74. Specifically, the tensioning unit 7 includes a driving mechanism 71 and a tensioning wheel 72, wherein the driving mechanism 71 includes a swing arm 711 and a first return spring 712, a hinge shaft 731 is disposed on the first end wall of the box body 73, a first end of the swing arm 711 is hinged to the hinge shaft 731, and the tensioning wheel 72 is mounted on the second end of the swing arm 711, and the tensioning wheel 72 can rotate relative to the swing arm 711 around its own axis, and the axis of the tensioning wheel 72 is parallel to the axis of the power receiving head. The first return spring 712 is preferably a torsion spring, which is mounted on the hinge shaft 731, and the two ends of the torsion spring are fixedly connected to the swing arm 711 and the box body 73 respectively. The torsion spring is used to drive the tensioning wheel 72 to press on the flexible member 74, so that the flexible member 74 always maintains the initial tension to ensure that the flexible member 74 can always maintain reliable transmission capability.

[0059] It should be noted that when the flexible member 74 is a transmission belt, the tension wheel 72 can be a roller or a pulley; when the flexible member 74 is a chain, the tension wheel 72 is a sprocket.

[0060] Toner cartridge seventh embodiment:

[0061] The difference between this embodiment and the seventh embodiment of the toner cartridge lies in the structure of the driving structure, specifically, Figure 6As shown, a slide groove 831 is provided on the first end wall of the box body 83, and the slide groove 831 is located between the axis of the power receiving head 84 and the axis of the second transmission wheel 85, and in the axial direction of the power receiving head 84, the projection of the slide groove 831 extends toward the line between the projection of the axis of the power receiving head 84 and the projection of the axis of the second transmission wheel 85. The driving mechanism 81 includes a slide bar 811 and a second resetting elastic member 812, the slide bar 811 is slidably installed in the slide groove 831 along the extension direction of the slide groove 831, the tensioning wheel 82 is rotatably installed on the first end of the slide bar 811 around its own axis, and the second resetting elastic member 812 is preferably a compression spring, which is connected between the first end of the slide bar 811 and the slide groove 831, and the compression spring is used to drive the slide bar 811 to move toward the flexible member 86, so that the tensioning wheel 82 on the first end of the slide bar 811 is pressed against the flexible member 86.

[0062] Printer Example:

[0063] The printer includes the toner cartridge described in any one of the first to seventh embodiments of the toner cartridge, and the printer provided with the toner cartridge can better avoid damage to the drive head and improve the detection accuracy of the detection mechanism for the toner cartridge.

[0064] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A toner cartridge, comprising a box body and a stirring frame, wherein a powder bin is disposed inside the box body, a power receiving head is disposed on a first end wall of the box body, and the stirring frame is rotatably mounted in the powder bin, characterized in that: The power receiving head is provided with a first transmission wheel, and the rotation axis of the first transmission wheel is parallel to the rotation axis of the stirring frame; A second transmission wheel is disposed at the first end of the stirring frame, and the second transmission wheel is located outside the powder bin and at the first end wall; The toner cartridge further comprises a flexible member, wherein the flexible member is wound around the first transmission wheel and the second transmission wheel, and the first transmission wheel drives the second transmission wheel to rotate through the flexible member; The toner cartridge further comprises a tensioning unit, which is arranged at the first end wall and is used to adjust the tensioning force of the flexible member. The tensioning unit comprises a driving mechanism and a tensioning wheel, which is mounted on the output end of the driving mechanism. The driving mechanism drives the tensioning wheel to abut against the flexible member and control the tensioning of the flexible member. The driving mechanism includes a swing arm and a first return spring, a hinge shaft is arranged on the first end wall, the first end of the swing arm is hinged to the hinge shaft, the tension wheel is mounted on the second end of the swing arm, the tension wheel can rotate relative to the swing arm around its own axis, and the axis of the tension wheel is parallel to the axis of the power receiving head, the first return spring adopts a torsion spring, the torsion spring is sleeved on the hinge shaft, and the two ends of the torsion spring are respectively fixedly connected to the swing arm and the box body, the torsion spring is used to drive the tension wheel to press on the flexible member, or A slide groove is provided on the first end wall, and the slide groove is located between the axis of the power receiving head and the axis of the second transmission wheel, and in the axial direction of the power receiving head, the projection of the slide groove extends toward the line between the projection of the axis of the power receiving head and the projection of the axis of the second transmission wheel, the driving mechanism includes a slide rod and a second reset elastic member, the slide rod is slidably installed in the slide groove along the extension direction of the slide groove, the tensioning wheel is rotatably installed on the first end of the slide rod around its own axis, the second reset elastic member adopts a compression spring, the compression spring is connected between the second end of the slide rod and the slide groove, and the compression spring is used to drive the slide rod to move toward the flexible member.

2. The toner cartridge according to claim 1, characterized in that: The first transmission wheel is a first pulley; The second transmission wheel is a second pulley; The flexible member is a transmission belt.

3. The toner cartridge according to claim 2, wherein: The first pulley and the second pulley are both synchronous pulleys, and the transmission belt is a synchronous belt; or The first pulley and the second pulley are both flat pulleys, and the transmission belt is a flat belt; or The first pulley and the second pulley are both V-pulleys, and the transmission belt is a V-belt; or The first pulley and the second pulley are both round pulleys, and the transmission belt is a round belt.

4. The toner cartridge according to claim 2, characterized in that: A reference diameter of the first pulley is 0.5 to 2 times a reference diameter of the second pulley.

5. The toner cartridge according to claim 2, wherein: The reference diameter of the first pulley is equal to the reference diameter of the second pulley, and the wrap angle of the transmission belt on the first pulley and the wrap angle of the transmission belt on the second pulley are both 180°; or The reference diameter of the first pulley is smaller than the reference diameter of the second pulley, and the wrap angle of the transmission belt on the first pulley is greater than or equal to 150° and less than 180°; or A reference diameter of the first pulley is greater than a reference diameter of the second pulley, and a wrap angle of the transmission belt on the second pulley is greater than or equal to 150° and less than 180°.

6. The toner cartridge according to claim 1, characterized in that: The first transmission wheel is a first sprocket; The second transmission wheel is a second sprocket; The flexible member is a chain.

7. The toner cartridge according to claim 6, characterized in that: The chain is a roller chain or a toothed chain.

8. A printer, characterized in that A toner cartridge comprising any one of claims 1 to 7.

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