Toner cartridge with adjustable elasticity

Abstract

The utility model relates to the technical field of selenium drums, in particular to an elastic-force-adjustable selenium drum which comprises a selenium drum body, a first side cover is installed on the surface of the selenium drum body through screws, overhaul and maintenance mechanisms are arranged on the surfaces of the selenium drum body and a second side cover, and elastic force adjusting mechanisms are arranged on the inner wall of the selenium drum body and the surface of a developing roller. And a sealing powder leakage prevention mechanism is arranged on the surface of the plug and the inner wall of the powder adding opening. The whole sealing performance of the toner cartridge body is further improved, so that when the toner cartridge is used, the tight contact between the OPC drum and the developing roller can be ensured, the tension between the toner bin and the waste toner bin is maintained, and the influence on the uniform distribution of toner and the printing quality due to the reduction of the elastic force is avoided; in addition, when the selenium drum is used, a user can conveniently and quickly take down the second side cover from the surface of the selenium drum body to overhaul all parts in the selenium drum body, so that the selenium drum is more convenient to operate when being used.

Description

Technical Field

[0001] This utility model relates to the field of toner cartridge technology, specifically to an adjustable elastic toner cartridge. Background Technology

[0002] A toner cartridge, also known as a photosensitive drum, is generally composed of a base material made of aluminum and a photosensitive material coated on the base material. In laser printers, more than 70% of the imaging components are concentrated in the toner cartridge, and the print quality is actually largely determined by the toner cartridge. Existing toner cartridges have certain drawbacks in use. In order to meet market needs, there is a need for an adjustable elastic toner cartridge.

[0003] Existing toner cartridges typically have their refill caps pressed directly onto one end of the cartridge, resulting in poor installation stability. This leads to insufficient toner leakage prevention, causing toner to leak from the gap between the filling port and the stopper, reducing the overall seal of the cartridge. Furthermore, existing cartridges usually lack adjustable spring tension, preventing proper contact between the OPC drum and the developing roller, and hindering the maintenance of tension between the toner and waste toner containers. This reduced spring tension can negatively impact toner distribution and print quality. In addition, existing cartridges are inconvenient to inspect and maintain, making them difficult to operate. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable elastic toner cartridge to solve the problems mentioned in the background art, such as the poor anti-leakage effect of toner cartridges, the lack of adjustable elasticity, and the inconvenience of inspection and maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable elastic toner cartridge, comprising a toner cartridge body, a first side cover mounted on the surface of the toner cartridge body by screws, a second side cover disposed on the surface of the toner cartridge body away from the first side cover, a toner filling port disposed on the surface of the second side cover, a plug disposed on the surface of the toner filling port, one end of the plug extending into the interior of the toner filling port, a sponge roller disposed inside the toner cartridge body, the sponge roller rotating in cooperation with the inner wall of the toner cartridge body, a developing roller disposed inside the toner cartridge body, the developing roller rotating in cooperation with the inner wall of the toner cartridge body, a maintenance mechanism disposed on the surface of the toner cartridge body and the second side cover, an adjustable elasticity mechanism disposed on the inner wall of the toner cartridge body and the surface of the developing roller, and a sealing and anti-leakage mechanism disposed on the surface of the plug and the inner wall of the toner filling port.

[0006] Preferably, the surface of the drum body is provided with a top cover, which is detachably connected to the surface of the drum body. The surface of the top cover and the inner wall of the drum body have a toner outlet, and the surface of the toner outlet is provided with a waste toner plug. One end of the waste toner plug extends into the interior of the toner outlet. A handle is installed on the surface of the drum body. An OPC drum is disposed inside the drum body. The OPC drum rotates with the inner wall of the drum body. The bottom end of the OPC drum extends to the outside of the drum body. The OPC drum cooperates with the developing roller. Paper is disposed below the drum body, and the surface of the paper is in contact with the surface of the OPC drum. A transfer roller is disposed below the drum body, and the surface of the transfer roller is in contact with the surface of the paper.

[0007] Preferably, the maintenance mechanism consists of disassembly screws, positioning clips, fixing slots, and fixing clips. The inner wall of the second side cover is equipped with fixing clips, and the surface of the toner cartridge body is provided with fixing slots. The fixing slots and the surfaces of the fixing clips engage with each other. The inner wall of the second side cover is equipped with positioning clips, and the positioning clips engage with the inner wall of the toner cartridge body.

[0008] Preferably, the surface of the second side cover is threaded with a disassembly screw, one end of which penetrates the second side cover and is threadedly fastened to the inner wall of the toner cartridge body.

[0009] Preferably, the adjusting elastic mechanism consists of a fixed plate, a spring, an adjusting plate, a fixed frame, and an adjusting stud. The fixed frame is installed on the inner wall of the drum body, and the adjusting plate is provided on the inner side of the fixed frame. The adjusting stud is threadedly connected to the surface of the fixed frame, and one end of the adjusting stud passes through the fixed frame and rotates with the surface of the adjusting plate.

[0010] Preferably, a fixing plate is provided on one side of the adjusting plate, the surface of the fixing plate is fixed to the surface of the developing roller, and springs with equal spacing are installed on the inner wall of the adjusting plate, one end of the springs being fixed to the surface of the fixing plate.

[0011] Preferably, the sealing and anti-leakage powder mechanism consists of a sealing gasket, a rubber gasket, an elastic clip, and a groove. The surface of the plug is covered with a sealing gasket, and a rubber gasket for sealing between the powder filling port and the plug is adhered to the surface of the sealing gasket. The inner wall of the rubber gasket is in contact with the inner wall of the powder filling port.

[0012] Preferably, the surface of the rubber pad is equipped with elastic clips, and the inner wall of the powder filling port is provided with a groove, the groove and the surface of the elastic clip engaging with each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the adjustable elasticity of the toner cartridge not only avoids the phenomenon of toner leaking out from the gap between the toner filling port and the stopper during use, but also further improves the overall sealing of the toner cartridge body, ensuring close contact between the OPC drum and the developing roller during use, maintaining the tension between the toner hopper and the waste toner hopper, and avoiding the impact of reduced elasticity on the uniform distribution of toner and print quality. Moreover, it makes it convenient for users to quickly remove the second side cover from the surface of the toner cartridge body to inspect the internal components of the toner cartridge body, making the toner cartridge more convenient to operate during use.

[0014] 1. By setting up a sealing and leak-proof toner mechanism, the plug drives the sealing gasket and rubber gasket to move, so that the sealing gasket drives the rubber gasket to contact the inner wall of the toner filling port. Under the joint action of the sealing gasket and the rubber gasket, the toner filling port and the plug are sealed. At this time, the rubber gasket drives the elastic clip to automatically lock into the corresponding groove. Under the locking action of the elastic clip and the groove, the plug is prevented from loosening from the inside of the toner filling port, thus realizing the function of preventing toner leakage from the drum. This prevents toner from leaking out from the gap between the toner filling port and the plug during use, and further improves the overall sealing performance of the drum body.

[0015] 2. With an adjustable spring mechanism, the user removes the second side cover from the surface of the drum unit and rotates the adjusting stud on the fixing frame. This causes the adjusting stud to move the adjusting plate closer to the OPC drum, reducing the distance between the developing roller and the OPC drum. As the adjusting plate moves, it moves the fixing plate, which in turn moves the developing roller until it contacts the surface of the OPC drum. By adjusting the compression of the spring, the spring force can be changed, quickly resolving print quality issues without the need for returns or exchanges, greatly saving the user's time. This does not affect normal use and ensures that the drum unit can maintain tight contact between the OPC drum and the developing roller, maintaining tension between the toner hopper and the waste toner hopper, and preventing the uniform distribution of toner and print quality from being affected by reduced spring force.

[0016] 3. With the included maintenance mechanism, users only need to loosen the screws on the second side cover and pull it away from the drum unit. This causes the second side cover to move the positioning clip away from the drum unit's surface. The second side cover then moves the fixing clip away from the fixing slot, allowing the second side cover to be removed from the drum unit's surface. This facilitates easy maintenance of the drum unit, allowing users to quickly remove the second side cover and inspect the internal components. This makes the drum unit more convenient to use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0019] Figure 3 This is an enlarged side view sectional diagram of the present invention;

[0020] Figure 4 For the present utility model Figure 2 Enlarged structural diagram of the intermediate maintenance and repair mechanism;

[0021] Figure 5 For the present utility model Figure 3 Enlarged schematic diagram of the adjusting elastic mechanism;

[0022] Figure 6 For the present utility model Figure 3 Enlarged structural diagram of the central sealing powder-proof mechanism.

[0023] In the diagram: 1. Toner cartridge body; 101. First side cover; 102. Second side cover; 103. Top cover; 104. Handle; 105. Waste toner plug; 106. OPC drum; 107. Paper; 108. Transfer roller; 109. Developing roller; 110. Sponge roller; 111. Toner filling port; 112. Plug; 2. Maintenance mechanism; 21. Disassembly screws; 22. Positioning clips; 23. Fixing slot; 24. Fixing clips; 3. Adjustment spring mechanism; 31. Fixing plate; 32. Spring; 33. Adjustment plate; 34. Fixing frame; 35. Adjustment stud; 4. Sealing and leak-proof mechanism; 41. Sealing gasket; 42. Rubber gasket; 43. Elastic clips; 44. Tank. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. 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 an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0025] This utility model provides a structure for an adjustable elastic toner cartridge, as follows: Figure 1 and Figure 2 As shown, the device includes a toner cartridge body 1. A first side cover 101 is screwed onto the surface of the toner cartridge body 1. A second side cover 102 is provided on the surface of the toner cartridge body 1 away from the first side cover 101. A top cover 103 is provided on the surface of the toner cartridge body 1, and the top cover 103 is detachably connected to the surface of the toner cartridge body 1. A toner outlet is formed on the surface of the top cover 103 and the inner wall of the toner cartridge body 1, and a waste toner plug 105 is provided on the surface of the toner outlet, with one end of the waste toner plug 105 extending into the interior of the toner outlet. A handle 104 is installed on the surface of the toner cartridge body 1. A toner filling port 111 is formed on the surface of the second side cover 102, and a plug 112 is provided on the surface of the toner filling port 111, with one end of the plug 112 extending into the interior of the toner filling port 111. The drum body 1 has a sponge roller 110 inside, which rotates and engages with the inner wall of the drum body 1. The drum body 1 also has a developing roller 109 inside, which rotates and engages with the inner wall of the drum body 1. The drum body 1 also has an OPC drum 106 inside, which rotates and engages with the inner wall of the drum body 1. The bottom end of the OPC drum 106 extends to the outside of the drum body 1. The OPC drum 106 engages with the developing roller 109. Paper 107 is placed below the drum body 1, and the surface of the paper 107 contacts the surface of the OPC drum 106. A transfer roller 108 is placed below the drum body 1, and the surface of the transfer roller 108 contacts the surface of the paper 107.

[0026] Furthermore, such as Figure 2 and Figure 4 As shown, the surfaces of the toner cartridge body 1 and the second side cover 102 are provided with maintenance mechanisms 2. The maintenance mechanisms 2 consist of disassembly screws 21, positioning clips 22, fixing slots 23 and fixing clips 24. Fixing clips 24 are installed on the inner wall of the second side cover 102. Fixing slots 23 are opened on the surface of the toner cartridge body 1. The fixing slots 23 and the surfaces of the fixing clips 24 are engaged with each other. Positioning clips 22 are installed on the inner wall of the second side cover 102. Positioning clips 22 are engaged with the inner wall of the toner cartridge body 1. The surface of the second side cover 102 is threaded with disassembly screws 21. One end of the disassembly screws 21 passes through the second side cover 102 and is threadedly fastened to the inner wall of the toner cartridge body 1.

[0027] In practice, the user simply needs to loosen the removal screws 21 on the surface of the second side cover 102, and then pull the second side cover 102 away from the toner cartridge body 1. This causes the second side cover 102 to move the positioning clip 22 away from the surface of the toner cartridge body 1. At this time, the second side cover 102 moves the fixing clip 24 away from the surface of the fixing slot 23, thereby removing the second side cover 102 from the surface of the toner cartridge body 1. When the user needs to reset the second side cover 102, the user places the second side cover 102 on the surface of the toner cartridge body 1. 102 drives the positioning clip 22 to automatically snap into the inside of the toner cartridge body 1. Under the action of the positioning clip 22, the second side cover 102 is quickly positioned. The second side cover 102 drives the fixing clip 24 to snap into the inside of the fixing slot 23. Under the action of the fixing slot 23 and the fixing clip 24, the second side cover 102 is precisely assembled. The user then tightens the disassembly screws 21 on the surface of the second side cover 102. Under the action of the disassembly screws 21, the second side cover 102 is installed on the surface of the toner cartridge body 1, so as to realize the function of convenient maintenance of the toner cartridge.

[0028] Furthermore, such as Figure 3 and Figure 5 As shown, an adjustment spring mechanism 3 is provided on the inner wall of the drum body 1 and the surface of the developing roller 109. The adjustment spring mechanism 3 consists of a fixed plate 31, a spring 32, an adjustment plate 33, a fixed frame 34, and an adjustment stud 35. The fixed frame 34 is installed on the inner wall of the drum body 1. An adjustment plate 33 is provided on the inner side of the fixed frame 34. An adjustment stud 35 is threadedly connected to the surface of the fixed frame 34. One end of the adjustment stud 35 passes through the fixed frame 34 and rotates with the surface of the adjustment plate 33. A fixed plate 31 is provided on one side of the adjustment plate 33. The surface of the fixed plate 31 is fixed to the surface of the developing roller 109. Springs 32 with equal spacing are installed on the inner wall of the adjustment plate 33. One end of the spring 32 is fixed to the surface of the fixed plate 31.

[0029] In practice, the user removes the second side cover 102 from the surface of the drum body 1 and rotates the adjusting stud 35 on the surface of the fixing bracket 34. This causes the adjusting stud 35 to move the adjusting plate 33 closer to the OPC drum 106, reducing the distance between the developing roller 109 and the OPC drum 106. When the adjusting plate 33 moves, it drives the fixing plate 31 to move, and the fixing plate 31 drives the developing roller 109 to contact the surface of the OPC drum 106. By adjusting the compression of the spring 32, its elasticity can be changed, which can quickly solve the printing quality problem without the need for return or exchange, greatly saving the user's processing time and not affecting the user's normal use, thus realizing the function of adjusting the elasticity of the drum.

[0030] Furthermore, such as Figure 3 and Figure 6As shown, a sealing and anti-leakage mechanism 4 is provided on the surface of the stopper 112 and the inner wall of the powder filling port 111. The sealing and anti-leakage mechanism 4 consists of a sealing gasket 41, a rubber gasket 42, an elastic clip 43, and a groove 44. The surface of the stopper 112 is covered with a sealing gasket 41. A rubber gasket 42 for sealing between the powder filling port 111 and the stopper 112 is adhered to the surface of the sealing gasket 41. The inner wall of the rubber gasket 42 is in contact with the inner wall of the powder filling port 111. An elastic clip 43 is installed on the surface of the rubber gasket 42. A groove 44 is opened on the inner wall of the powder filling port 111. The groove 44 and the surface of the elastic clip 43 are engaged with each other.

[0031] During implementation, the user places the stopper 112 on the surface of the toner filling port 111 and pushes the stopper 112, causing one end of the stopper 112 to move into the interior of the toner filling port 111. At this time, the stopper 112 drives the sealing gasket 41 and the rubber gasket 42 to move, causing the sealing gasket 41 to drive the rubber gasket 42 to contact the inner wall of the toner filling port 111. Under the combined action of the sealing gasket 41 and the rubber gasket 42, a seal is formed between the toner filling port 111 and the stopper 112. At this time, the rubber gasket 42 drives the elastic clip 43 to automatically lock into the corresponding groove 44. Under the locking action of the elastic clip 43 and the groove 44, the stopper 112 is prevented from coming loose from the interior of the toner filling port 111, thus achieving the function of preventing toner leakage from the drum.

[0032] Working principle: In use, first place the toner cartridge body 1 in the designated position. The user removes the waste toner plug 105 from the surface of the toner outlet, discharging the waste toner inside the toner cartridge body 1 through the toner outlet. Then, the user pulls the plug 112 on the surface of the toner filling port 111 to remove the plug 112 from the surface of the toner filling port 111. Toner is then added into the plug 112 through the toner filling port 111. After adding toner, the user places the plug 112 on the surface of the toner filling port 111 and pushes the plug 112, causing one end of the plug 112 to move into the interior of the toner filling port 111. At this time, the plug 112 moves the sealing gasket 41 and the rubber gasket 42. This causes the sealing gasket 41 to move the rubber gasket 42 to contact the inner wall of the toner filling port 111. Under the combined action of the sealing gasket 41 and the rubber gasket 42, the toner filling port 111 and the plug 112 are sealed. At this time, the rubber gasket 42 drives the elastic clip 43 to automatically lock into the corresponding groove 44. Under the locking action of the elastic clip 43 and the groove 44, the plug 112 is prevented from loosening from the inside of the toner filling port 111, so as to achieve the function of preventing toner leakage from the drum. This avoids the phenomenon of toner leaking from the gap between the toner filling port 111 and the plug 112 when the drum is in use, and further improves the overall sealing performance of the drum body 1.

[0033] Subsequently, the charging roller applies a negative charge to the surface of the OPC drum 106. The laser irradiates the OPC drum 106 according to the shape of the printed pattern, and the irradiated area of ​​the OPC drum 106 becomes positively charged. Since the OPC drum 106 is a photosensitive element, the irradiated area will become positively charged. Toner enters the surface of the developing roller 109. Under the action of the developing roller 109, the toner is attached to the heavily charged surface of the OPC drum 106. The negatively charged area on the surface of the OPC drum 106 is ignored by the toner. Under the action of the sponge roller 110, toner is provided to the surface of the developing roller 109, and the toner that has not been adsorbed onto the OPC drum 106 is cleaned. Since the surface of the transfer roller 108 is negatively charged, the toner attached to the OPC drum 106 can be adsorbed onto the paper 107. The toner attached to the paper 107 is heated by the heating roller and squeezed by the pressure roller, so that it can be printed onto the surface of the paper 107.

[0034] Subsequently, the spring 32 between the toner cartridge and the waste toner cartridge is in a compressed state for an extended period. The time from product shipment to customer use is variable; the longer the time, the longer the spring 32 is compressed, and the less elastic it becomes, resulting in white printing. At this point, the user removes the second side cover 102 from the surface of the drum unit 1 and rotates the adjusting stud 35 on the surface of the fixing bracket 34. This causes the adjusting stud 35 to move the adjusting plate 33 closer to the OPC drum 106, reducing the distance between the developing roller 109 and the OPC drum 106. When the adjusting plate 33 moves, the adjustment... Plate 33 drives the fixed plate 31 to move, and the fixed plate 31 drives the developing roller 109 to move until it contacts the surface of the OPC drum 106. By adjusting the compression of the spring 32, its elasticity can be changed, which can quickly solve the printing quality problem without the need for return or exchange, greatly saving the user's processing time, and at the same time not affecting the user's normal use, so as to realize the function of adjusting the elasticity of the toner cartridge, thereby ensuring close contact between the OPC drum 106 and the developing roller 109 when the toner cartridge is used, maintaining the tension between the toner hopper and the waste toner hopper, and avoiding the impact of reduced elasticity on the uniform distribution of toner and printing quality.

[0035] Subsequently, if the user needs to inspect and maintain the various components inside the toner cartridge body 1, the user only needs to loosen the removal screws 21 on the surface of the second side cover 102, and then pull the second side cover 102 away from the toner cartridge body 1. This causes the second side cover 102 to move the positioning clip 22 away from the surface of the toner cartridge body 1. At this time, the second side cover 102 moves the fixing clip 24 away from the surface of the fixing slot 23, thereby removing the second side cover 102 from the surface of the toner cartridge body 1. When the user needs to reset the second side cover 102, the user places the second side cover 102 on the surface of the toner cartridge body 1. At this time, the second side cover 102 moves the positioning clip 22 to automatically lock into the interior of the toner cartridge body 1. Under the action of step 2, the second side cover 102 is quickly positioned, and the second side cover 102 drives the fixing clip 24 to be snapped into the inside of the fixing slot 23. Under the snapping action of the fixing slot 23 and the fixing clip 24, the second side cover 102 is precisely assembled. The user then tightens the removal screws 21 on the surface of the second side cover 102. Under the action of the removal screws 21, the second side cover 102 is installed on the surface of the toner cartridge body 1, so as to realize the function of convenient maintenance of the toner cartridge. This makes it convenient for the user to quickly remove the second side cover 102 from the surface of the toner cartridge body 1 when using the toner cartridge, and to inspect the various components inside the toner cartridge body 1. This makes the toner cartridge more convenient to operate when using, and finally completes the use of the toner cartridge.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A toner cartridge with adjustable elasticity, comprising a toner cartridge body (1), characterized in that: The surface of the toner cartridge body (1) is fitted with a first side cover (101) by screws. A second side cover (102) is provided on the surface of the toner cartridge body (1) away from the first side cover (101). A toner filling port (111) is provided on the surface of the second side cover (102), and a stopper (112) is provided on the surface of the toner filling port (111). One end of the stopper (112) extends into the interior of the toner filling port (111). A sponge roller (110) is provided inside the toner cartridge body (1). The sponge roller (110) and... The inner walls of the drum body (1) rotate with each other. A developing roller (109) is provided inside the drum body (1). The developing roller (109) rotates with the inner wall of the drum body (1). A maintenance mechanism (2) is provided on the surface of the drum body (1) and the second side cover (102). An adjustment spring mechanism (3) is provided on the inner wall of the drum body (1) and the surface of the developing roller (109). A sealing and anti-leakage mechanism (4) is provided on the surface of the plug (112) and the inner wall of the toner filling port (111).

2. The toner cartridge of claim 1, wherein: The surface of the toner cartridge body (1) is provided with a top cover (103), the top cover (103) is detachably connected to the surface of the toner cartridge body (1), the surface of the top cover (103) and the inner wall of the toner cartridge body (1) are provided with a toner outlet, and the surface of the toner outlet is provided with a waste toner plug (105), one end of the waste toner plug (105) extends into the interior of the toner outlet, the surface of the toner cartridge body (1) is provided with a handle (104), and the interior of the toner cartridge body (1) is provided with an OPC drum (106), the OPC drum (106) is provided with a handle (104), the surface of the toner cartridge body (104) is provided with a handle (104), and the interior of the toner cartridge body (104) is provided with an OPC drum (106). 6) The OPC drum (106) rotates with the inner wall of the drum body (1), and the bottom end of the OPC drum (106) extends to the outside of the drum body (1). The OPC drum (106) and the developing roller (109) cooperate with each other. Paper (107) is arranged below the drum body (1), and the surface of the paper (107) is in contact with the surface of the OPC drum (106). Transfer roller (108) is arranged below the drum body (1), and the surface of the transfer roller (108) is in contact with the surface of the paper (107).

3. The toner cartridge of claim 1, wherein: The maintenance mechanism (2) consists of disassembly screws (21), positioning clips (22), fixing slots (23) and fixing clips (24). The inner wall of the second side cover (102) is equipped with fixing clips (24). The surface of the drum body (1) is provided with fixing slots (23). The fixing slots (23) and the surface of the fixing clips (24) are engaged with each other. The inner wall of the second side cover (102) is equipped with positioning clips (22). The positioning clips (22) are engaged with the inner wall of the drum body (1).

4. The toner cartridge of claim 1, wherein: The second side cover (102) has a threaded connection to a disassembly screw (21), one end of which passes through the second side cover (102) and is threadedly fastened to the inner wall of the drum body (1).

5. The toner cartridge of claim 1, wherein: The adjusting elastic mechanism (3) consists of a fixed plate (31), a spring (32), an adjusting plate (33), a fixed frame (34), and an adjusting stud (35). The inner wall of the drum body (1) is fitted with a fixed frame (34), and an adjusting plate (33) is provided on the inner side of the fixed frame (34). The surface of the fixed frame (34) is threaded with an adjusting stud (35). One end of the adjusting stud (35) passes through the fixed frame (34) and rotates with the surface of the adjusting plate (33).

6. The toner cartridge of claim 5, wherein: A fixing plate (31) is provided on one side of the adjusting plate (33). The surface of the fixing plate (31) is fixed to the surface of the developing roller (109). Springs (32) with equal spacing are installed on the inner wall of the adjusting plate (33). One end of the spring (32) is fixed to the surface of the fixing plate (31).

7. The toner cartridge of claim 1, wherein: The sealing and anti-leakage powder mechanism (4) consists of a sealing gasket (41), a rubber gasket (42), an elastic clip (43), and a groove (44). The surface of the plug (112) is covered with a sealing gasket (41). The surface of the sealing gasket (41) is adhered with a rubber gasket (42) for sealing between the powder filling port (111) and the plug (112). The inner wall of the rubber gasket (42) is in contact with the inner wall of the powder filling port (111).

8. The toner cartridge of claim 7, wherein: The surface of each rubber pad (42) is fitted with an elastic clip (43), and the inner wall of each powder inlet (111) is provided with a groove (44), which engages with the surface of the elastic clip (43).

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