developer cartridge

Abstract

The present application relates to the technical field of printers, and provides a developing cartridge, comprising a housing, a powder adding device, a powder feed channel, a developing magnetic roller, a first transmission rod, a sensing drum, a second transmission rod, a charging roller, and a position adjustment device. The powder adding device comprises a powder feed port and a stirring device. The position adjustment device is disposed on the housing and mounts and adjusts the developing magnetic roller, the first transmission rod, the sensing drum, the second transmission rod, and the charging roller. One end of the powder feed channel is connected to the stirring device, and the other end is connected to the developing magnetic roller. The developing magnetic roller, the first transmission rod, the sensing drum, the second transmission rod, and the charging roller are driven by gear meshing. The first and second transmission rods ensure transmission stability. The stirring device can uniformly introduce toner into the powder feed channel, thereby ensuring that the developing magnetic roller uniformly absorbs toner. The position adjustment device adjusts the meshing degree and spacing of the gears to stabilize the toner absorption amount, thereby ensuring optimal printing quality.

Description

Technical Field

[0001] The present application belongs to the technical field of printers, and more specifically, relates to a developing cartridge. Background Art

[0002] During the laser printing process, the toner first enters the developing magnetic roller and then is transferred to the photosensitive drum. In actual operation, the toner entering the photosensitive drum is often uneven, resulting in different print clarity, and some places are even very unclear. The traditional toner drum structure is relatively complex, the transmission stability is poor, and the position of the photosensitive drum, developing magnetic roller, and charging roller cannot be adjusted. This makes the toner adsorption unstable sometimes, sometimes more, sometimes less, and the powder addition and stirring are not uniform, causing the printed font to be too thick or too light; similarly, the charging roller and photosensitive drum are fixed in position, which often causes the photosensitive drum to be charged too much or too little, resulting in problems such as print clarity, making the overall print quality of the toner drum poor. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a developing cartridge to solve the technical problem of poor printing quality of the toner cartridge in the prior art.

[0004] To achieve the above-mentioned object, the technical solution adopted in the present application is as follows: providing a developing toner cartridge, comprising: a shell, a powder adding device, a powder feeding channel, a developing magnetic roller, a first transmission rod, an induction drum, a second transmission rod, a charging roller, and a position adjustment device, wherein the powder adding device is arranged on the top of the shell, the powder adding device comprises at least one powder inlet and at least one stirring device, the position adjustment device is arranged on the shell and installs and adjusts the developing magnetic roller, the first transmission rod, the induction drum, the second transmission rod, and the charging roller, one end of the powder feeding channel is connected to the stirring device, and the other end is connected to the developing magnetic roller; the developing magnetic roller, the first transmission rod, the induction drum, the second transmission rod, and the charging roller are driven by gear meshing;

[0005] The position adjustment device includes an adjustment rod, an adjustment plate, an adjustment slot and a bidirectional position driving member. The adjustment plate and the bidirectional position driving member are fixed on the housing. The adjustment slot is opened on the adjustment plate. One end of the adjustment rod passes through the adjustment slot and is arranged on the bidirectional position driving member. The adjustment rod is provided on the axis of the developing magnetic roller, the first transmission rod, the induction drum, the second transmission rod and the charging roller.

[0006] In one embodiment, the bidirectional position driving member includes an upper and lower telescopic driving member, a left and right movable buckle fine-tuning plate and a first limiting ring, the left and right movable buckle fine-tuning plate is provided with a limiting channel, the first limiting ring is arranged on the adjusting rod and is slidably assembled with the limiting channel, the two ends of the left and right movable buckle fine-tuning plate are respectively arranged on the upper and lower telescopic driving members, and the adjustment groove is an arc groove.

[0007] In one embodiment, guide grooves parallel to the adjustment grooves are further provided on both sides of the adjustment piece, and the first limiting ring is slidably assembled with the guide grooves.

[0008] In one embodiment, the stirring device includes: a motor, a first stirring component, a free connector and a second stirring component, the motor is arranged on the outside of the shell, the motor is connected to the first stirring component, and the two ends of the free connector are respectively connected to the first stirring component and the second stirring component.

[0009] In one embodiment, the first stirring assembly includes a connecting baffle, a sleeve, a first rotor and a stirring ring, the connecting baffle is connected to the output shaft of the motor, one end of the sleeve is connected to the connecting baffle, and the other end is connected to one end of the first rotor, and the other end of the first rotor is connected to the free connecting piece, a second limiting ring is protruded from the lower end of the sleeve, and the stirring ring is rotatably mounted on the sleeve.

[0010] In one embodiment, the free connecting member is a bellows, a spring or a soft rubber rod.

[0011] In one embodiment, the second stirring assembly includes a second rotor, a first outer cover, a second outer cover and a stirring wheel, one end of the second rotor is connected to the free connector, and the other end is connected to the first outer cover, the second outer cover is sealed to the first outer cover, the stirring wheel is arranged at an end of the second outer cover away from the first outer cover, and a filter mesh is provided on the stirring wheel.

[0012] In one embodiment, the pore size of the filter mesh gradually decreases from the center to the periphery.

[0013] In one embodiment, a powder feed sensing chip is provided on the inner side of the powder feed port, and at least two powder feed channels are provided.

[0014] In one embodiment, the shell is provided with a scraper plate, a scraper blade, a waste powder bin and a de-staticizing device, the scraper plate is arranged corresponding to the developing magnetic roller, the scraper blade is arranged for the induction drum, the de-staticizing device is arranged for the induction drum, and the waste powder bin is arranged below the scraper blade.

[0015] The beneficial effects of the developing toner cartridge provided in the present application are: the transmission stability of the developing magnetic roller, the induction drum and the charging roller can be ensured by the first transmission rod and the second transmission rod, the toner can be evenly introduced into the powder feed channel by the stirring device, thereby ensuring that the developing magnetic roller evenly adsorbs the toner, and the left and right and up and down fine-tuning of the developing magnetic roller, the first transmission rod, the induction drum, the second transmission rod and the charging roller can be achieved by the position adjustment device, thereby adjusting the meshing degree of the gears and the spacing between the developing magnetic roller, the first transmission rod, the induction drum, the second transmission rod and the charging roller, so that the adsorption amount of the toner is stable, thereby ensuring that the printing quality is in an optimal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic structural diagram of a developing cartridge provided in an embodiment of the present application;

[0018] Figure 2 A schematic structural diagram of a stirring device in a developing cartridge provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of the connection structure of the first stirring component and the second stirring component in the developing cartridge provided in an embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the developer magnetic roller, the first transmission rod, the induction drum, the second transmission rod and the charging roller in the developer toner cartridge provided by the embodiment of the present application, which are driven by gear meshing;

[0021] Figure 5 A schematic diagram of a position adjustment device in a developing drum provided in an embodiment of the present application;

[0022] Figure 6 A schematic structural diagram of a limiting ring in a developing cartridge provided in an embodiment of the present application;

[0023] Figure 7 A left-right movable buckling fine-tuning plate is provided in the developing toner cartridge provided in the embodiment of the present application.

[0024] Among them, the reference numerals in the figures are:

[0025] 1. Housing; 11. Powder scraper; 12. Powder scraper; 13. Waste powder bin; 14. De-electrolysis device; 141. Electrode; 142. De-electrode; 2. Powder adding device; 21. Powder inlet; 22. Stirring device; 23. First stirring assembly; 231. Connecting baffle; 232. Sleeve; 233. First rotor; 234. Stirring ring; 235. Second limiting ring; 24. Free connecting piece; 25. Second stirring assembly; 251. Second rotor; 252. First outer cover; 253. Second outer cover; 2 54. Agitating wheel; 255. Claw hook; 3. Powder feeding channel; 4. Developing magnetic roller; 5. First transmission rod; 6. Induction drum; 7. Second transmission rod; 8. Charging roller; 9. Position adjustment device; 91. Adjusting rod; 92. Adjusting plate; 93. Adjusting slot; 94. Bidirectional position driving member; 941. Up and down telescopic driving member; 942. Left and right moving buckle fine-tuning plate; 9421. Limiting channel; 943. First limiting ring; 9431. First limiting section; 9432. Second limiting section; 95. Guide slot. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0027] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0030] like Figure 1-Figure 7As shown, a developer toner cartridge provided in an embodiment of the present application is now described. The developer toner cartridge comprises: a housing 1, a powder adding device 2, a powder feed channel 3, a developer magnetic roller 4, a first transmission rod 5, an induction drum 6, a second transmission rod 7, a charging roller 8, and a position adjustment device 9. The housing 1, developer magnetic roller 4, induction drum 6, and charging roller 8 are existing parts.

[0031] In this embodiment, a powder feeding device 2 is disposed on the top of the housing 1 and includes at least one powder inlet 21 and at least one stirring device 22. The powder inlet 21 is used to feed toner, which is then stirred uniformly by the stirring device 22. One end of a powder feed channel 3 is connected to the stirring device 22, and the other end is connected to the developing magnetic roller 4. After being dispersed by the stirring device 22, the toner is transported through the powder feed channel 3 to the developing magnetic roller 4 for printing.

[0032] The position adjustment device 9 is provided on the housing 1 and is used to install and adjust the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7 and the charging roller 8. The position adjustment device 9 can adjust the left and right, up and down positions of the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7 and the charging roller 8 respectively.

[0033] In this embodiment, the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7, and the charging roller 8 are driven by gear meshing; that is, gears are provided at one or both ends of the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7, and the charging roller 8. The gear on the developing magnetic roller 4 meshes with the gear on the first transmission rod 5, the gear on the first transmission rod 5 meshes with the gear on the induction drum 6, the gear on the induction drum 6 meshes with the gear on the second transmission rod 7, and the gear on the second transmission rod 7 meshes with the gear on the charging roller 8. The addition of the first transmission rod 5 and the second transmission rod 7 is used to increase the stability of the transmission of the developing magnetic roller 4, the induction drum 6, and the charging roller 8.

[0034] In this embodiment, if Figure 5-7As shown, the position adjustment device 9 includes an adjustment rod 91, an adjustment plate 92, an adjustment slot 93, and a bidirectional position driver 94. The adjustment plate 92 and bidirectional position driver 94 are respectively fixed to the housing 1 at both ends of the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7, and the charging roller 8. This allows for parallel and spaced position adjustment between the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7, and the charging roller 8. The adjustment slot 93 is defined in the adjustment plate 92. One end of the adjustment rod 91 passes through the adjustment slot 93 and is mounted on the bidirectional position driver 94. The bidirectional position driver 94 is used to achieve left-right and up-and-down movement of the adjustment rod 91. An adjusting rod 91 is provided on the axis of the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7 and the charging roller 8. The adjusting rod 91 is the shaft of the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7 and the charging roller 8. The developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7 and the charging roller 8 rotate relative to each other around the corresponding adjusting rod 91 driven by the gears.

[0035] In this embodiment, the transmission stability of the developing magnetic roller 4, the induction drum 6 and the charging roller 8 can be ensured by the first transmission rod 5 and the second transmission rod 7. The toner can be evenly introduced into the powder feed channel 3 by the stirring device 22, thereby ensuring that the developing magnetic roller 4 evenly absorbs the toner. The left and right and up and down fine-tuning of the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7 and the charging roller 8 can be achieved by the position adjustment device 9, thereby adjusting the meshing degree of the gears and the spacing between the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7 and the charging roller 8, so that the toner adsorption amount is stable, thereby ensuring that the printing quality is in an optimal state.

[0036] like Figure 5-6As shown, in this embodiment, the bidirectional position driver 94 includes a vertical telescopic driver 941, a horizontally movable interlocking fine-adjustment plate 942, and a first limiting ring 943. The horizontally movable interlocking fine-adjustment plate 942 is provided with a limiting channel 9421. The first limiting ring 943 is mounted on the adjustment rod 91 and slidably engages with the limiting channel 9421. The left-right interlocking fine-adjustment plate 942 is provided at both ends of the vertical telescopic driver 941. The adjustment slots 93 are arc-shaped. The bidirectional position driver 94 is provided at both ends of the developing magnetic roller 4, the first transmission rod 5, the induction drum 6, the second transmission rod 7, and the charging roller 8. The vertical telescopic driver 941 is a pneumatic cylinder, a hydraulic cylinder, or an electric push rod. Because the adjustment slots 93 are arc-shaped, the adjustment rod 91 moves in an arc along the adjustment slots 93, and this arc-shaped motion simultaneously achieves fine adjustment of the vertical and horizontal positions. When the vertical telescopic drive member 941 extends, it drives the left-right movable and engaging fine-tuning plate 942 up and down, causing the first limiting ring 943 to slide leftward or rightward within the limiting channel 9421 while simultaneously rising, thereby simultaneously achieving left-right and right-right position adjustment. Because the arc-shaped groove serves as a limiter, when the vertical telescopic drive member 941 stops operating, the adjustment rod 91 can be stably maintained in its current position, thereby ensuring stable position adjustment of the developing magnetic roller 4, first transmission rod 5, induction drum 6, second transmission rod 7, and charging roller 8. The bidirectional position drive member 94 can adjust the gear meshing degree and the position spacing between the developing magnetic roller 4, first transmission rod 5, induction drum 6, second transmission rod 7, and charging roller 8, thereby improving printing performance and ensuring print quality.

[0037] In this embodiment, the first limiting ring 943 includes a first limiting section 9431 and a second limiting section 9432. Guide grooves 95, parallel to the adjustment slot 93, are also provided on both sides of the adjustment plate 92. These guide grooves 95 are also arcuate, and the first limiting ring 943 slides into and out of the guide grooves 95. The guide grooves 95 serve to enhance the adjustment and limiting capabilities of the adjustment slot 93. Specifically, the first limiting section 9431 is a U-shaped structure that slides into the guide groove 95, while the second limiting section 9432 is a cylindrical structure that slides into and out of the limiting channel 9421.

[0038] like Figures 1-4 As shown, in this embodiment, the stirring device 22 includes: a motor, a first stirring assembly 23, a free connecting member 24, and a second stirring assembly 25. The motor is disposed on the top outer side of the housing 1 and is connected to the first stirring assembly 23. The ends of the free connecting member 24 are respectively connected to the first stirring assembly 23 and the second stirring assembly 25. The motor drives the first stirring assembly 23 to rotate, which in turn drives the second stirring assembly 25 to rotate via the free connecting member 24. The free connecting member 24 enables the second stirring assembly 25 to swing and rotate, allowing the second stirring assembly 25 to perform multi-directional stirring, thereby increasing the stirring range.

[0039] In this embodiment, if Figures 1-4 As shown, a feed hopper is provided in the housing 1, and a stirring device 22 is provided in the feed hopper. The first stirring assembly 23 includes a connecting baffle 231, a sleeve 232, a first rotor 233, and a stirring ring 234. The connecting baffle 231 is connected to the output shaft of the motor. One end of the sleeve 232 is connected to the connecting baffle 231, and the other end is connected to one end of the first rotor 233. The other end of the first rotor 233 is connected to the free connecting member 24. A second limiting ring 235 is protruded from the lower end of the sleeve 232. The second limiting ring 235 limits the position of the stirring ring 234. The stirring ring 234 is rotatably sleeved on the sleeve 232. When the motor is operating, it drives the connecting baffle 231 to rotate, the connecting baffle 231 drives the sleeve 232 to rotate, and the sleeve 232 drives the first rotor 233 and the stirring ring 234 to rotate. The stirring ring 234 is used to stir the toner for the first time. The first rotor 233 drives the free connecting member 24, thereby driving the second stirring assembly 25 to rotate. The stirring ring 234 is a structure such as a spring or a bellows, or a plurality of stirring blades arranged at intervals.

[0040] In this embodiment, the free connector 24 is a bellows, spring, or soft rubber rod, where the soft rubber rod is a rubber or silicone rod, or a universal ball joint. This allows the second stirring assembly 25 to swing freely relative to the first stirring assembly 23. The bellows is a metal bellows, which provides a certain degree of resilience. The faster the motor speed, the greater the swing range of the free connector 24. When stirring at a high motor speed, the first stirring assembly 23 and the second stirring assembly 25 can stir the toner in a straight line.

[0041] like Figures 1-4As shown, in this embodiment, the second stirring assembly 25 includes a second rotor 251, a first outer cover 252, a second outer cover 253, and a stirring wheel 254. One end of the second rotor 251 is connected to the free connector 24, and the other end is connected to the first outer cover 252. The first outer cover 252 is connected to the second rotor 251, and the second outer cover 253 is sealed to the first outer cover 252. The stirring wheel 254 is disposed at an end of the second outer cover 253 away from the first outer cover 252. The stirring wheel 254 is provided with a filter mesh and is a steel sieve plate welded to the second outer cover 253. The second rotor 251 is driven to rotate by the free connector 24, thereby driving the first outer cover 252 to rotate. The first outer cover 252 drives the second outer cover 253 to rotate, which in turn drives the stirring wheel 254 to rotate. The stirring wheel 254 stirs the toner evenly. In this embodiment, a mounting hole is provided on the first outer cover 252, and an L-shaped claw hook 255 is provided in the second outer cover 253. The claw hook 255 is fixed to the second outer cover 253 by screws. The claw hook 255 is plugged into the mounting hole on the first outer cover 252. The end surfaces of the first outer cover 252 and the second outer cover 253 are sealed by a sealing cover to prevent toner from falling between the first outer cover 252 and the second outer cover 253.

[0042] In this embodiment, the aperture of the filter mesh gradually decreases from the center to the periphery. Since the agitator wheel 254 causes coarse toner particles to move toward the center and fine toner particles to be dispersed to the periphery during rotation, the aperture of the filter mesh is gradually reduced from the center to the periphery to ensure uniform distribution of the toner. At the same time, at least two powder feed channels 3 are provided, one of which is connected to the center of the agitator wheel 254 and the other is connected to the edge of the agitator wheel 254. The powder feed channels 3 can be opened and closed by a control valve or other switch, so that the coarseness and fineness of the toner can be used according to the printing requirements, ensuring print clarity and thus ensuring that the print quality meets the printing requirements. The powder feed channel 3 is an inclined channel, and the toner can slide onto the developing magnetic roller 4 under its own gravity. Providing multiple powder feed channels 3 can also increase the amount of toner entering, thereby ensuring that there is enough toner on the developing magnetic roller 4 for printing, thereby ensuring print quality. Moreover, in this embodiment, compared with the prior art, the toner bin and the stirring mechanism provided in the toner bin are omitted, so that the toner is directly introduced into the developing magnetic roller 4 through the powder inlet channel 3, and the toner will not be deposited in the toner bin.

[0043] like Figure 1As shown, in this embodiment, multiple powder adding devices 2 can be provided, each including at least two powder inlets 21. Each powder inlet 21 is equipped with a powder inlet sensor chip inside, which is used to sense the amount of toner added. In this embodiment, the housing 1 is provided with a powder scraper 11, a powder scraper 12, a waste toner bin 13, and a de-electrification device 14. The powder scraper 11 is positioned corresponding to the developing magnetic roller 4 to charge the toner on the developing magnetic roller 4. The powder scraper 12 is positioned relative to the induction drum 6 to scrape off residual toner after printing. The de-electrification device 14 is positioned relative to the induction drum 6 to de-electrify the toner on the printed paper after printing. The waste toner bin 13 is used to collect the scraped waste toner. The de-electrification device 14 includes an electrode 141 and a de-electrification electrode 142141. The de-electrification device 14 is conventional technology and will not be described in detail here. The powder inlet 21 is provided with a powder inlet cover, which closes the powder inlet 21 when toner is not being added.

[0044] In this embodiment, the stirring device 22 improves the uniformity of the toner and enhances the clarity and resolution of the print. The addition of a first transmission rod 5 and a second transmission rod 7 enhances stability. Unused toner is promptly removed from the waste toner bin 13 for reuse, increasing toner utilization. Multiple powder feed channels 3 facilitate toner separation, separating the toner from top to bottom and improving uniformity. Adjusting the positions of the photosensitive drum, developing magnetic roller 4, and charging roller 8 enhances toner adsorption stability and toner utilization. The position adjustment device 9 maintains the developing magnetic roller 4 and photosensitive drum in proper positions, ensuring that a suitable amount of toner on the developing magnetic roller 4 is adsorbed onto the photosensitive drum. Furthermore, the developing magnetic roller 4, first transmission rod 5, induction drum 6, and second transmission rod 7 are positioned appropriately, allowing for better gear engagement and a more stable transmission. Similarly, the induction drum 6 and charging roller 8 are positioned appropriately, maintaining a good charge state and ensuring print quality. The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A developing cartridge, characterized in that: include: A shell (1), a powder adding device (2), a powder feeding channel (3), a developing magnetic roller (4), a first transmission rod (5), an induction drum (6), a second transmission rod (7), a charging roller (8) and a position adjustment device (9), wherein the powder adding device (2) is arranged on the top of the shell (1), the powder adding device (2) comprises at least one powder feeding port (21) and at least one stirring device (22), the position adjustment device (9) is arranged on the shell (1) and is used to install and adjust the developing magnetic roller (4), the first transmission rod (5), the induction drum (6), the second transmission rod (7) and the charging roller (8), one end of the powder feeding channel (3) is connected to the stirring device (22), and the other end is connected to the developing magnetic roller (4); the developing magnetic roller (4), the first transmission rod (5), the induction drum (6), the second transmission rod (7) and the charging roller (8) are driven by gear meshing; The position adjustment device (9) includes an adjustment rod (91), an adjustment sheet (92), an adjustment slot (93) and a bidirectional position driving member (94). The adjustment sheet (92) and the bidirectional position driving member (94) are fixed on the housing (1). The adjustment slot (93) is provided on the adjustment sheet (92). One end of the adjustment rod (91) passes through the adjustment slot (93) and is provided on the bidirectional position driving member (94). The axes of the developing magnetic roller (4), the first transmission rod (5), the induction drum (6), the second transmission rod (7) and the charging roller (8) are all The adjusting rod (91) is provided; the bidirectional position driving member (94) comprises an upper and lower telescopic driving member (941), a left and right movable buckling fine-tuning plate (942) and a first limiting ring (943); the left and right movable buckling fine-tuning plate (942) is provided with a limiting channel (9421); the first limiting ring (943) is arranged on the adjusting rod (91) and slidably assembled with the limiting channel (9421); the two ends of the left and right movable buckling fine-tuning plate (942) are respectively arranged on the upper and lower telescopic driving member (941); and the adjusting groove (93) is an arc groove.

2. The developing cartridge according to claim 1, wherein: Guide grooves (95) parallel to the adjustment groove (93) are also provided on both sides of the adjustment piece (92), and the first limiting ring (943) is slidably assembled with the guide grooves (95).

3. The developing cartridge according to claim 1, wherein: The stirring device (22) comprises: a motor, a first stirring component (23), a free connecting piece (24) and a second stirring component (25); the motor is arranged outside the housing (1), the motor is connected to the first stirring component (23), and the two ends of the free connecting piece (24) are respectively connected to the first stirring component (23) and the second stirring component (25).

4. The developing cartridge according to claim 3, wherein: The first stirring assembly (23) comprises a connecting baffle (231), a sleeve (232), a first rotor (233) and a stirring ring (234); the connecting baffle (231) is connected to the output shaft of the motor; one end of the sleeve (232) is connected to the connecting baffle (231), and the other end is connected to one end of the first rotor (233); the other end of the first rotor (233) is connected to the free connecting member (24); a second limiting ring (235) is protruded from the lower end of the sleeve (232); and the stirring ring (234) is rotatably sleeved on the sleeve (232).

5. The developing cartridge according to claim 4, wherein: The free connecting piece (24) is a bellows, a spring or a soft rubber rod.

6. The developing cartridge according to claim 5, wherein: The second stirring assembly (25) comprises a second rotor (251), a first outer cover (252), a second outer cover (253) and a stirring wheel (254); one end of the second rotor (251) is connected to the free connector (24), and the other end is connected to the first outer cover (252); the second outer cover (253) is sealed to the first outer cover (252); the stirring wheel (254) is arranged at an end of the second outer cover (253) away from the first outer cover (252); and a filter mesh is provided on the stirring wheel (254).

7. The developing cartridge according to claim 6, wherein: The aperture of the filter mesh gradually decreases from the center to the periphery.

8. The developing cartridge according to any one of claims 1 to 7, wherein: A powder feeding sensor chip is provided on the inner side of the powder feeding port (21), and at least two powder feeding channels (3) are provided.

9. The developing cartridge according to claim 8, wherein: The housing (1) is provided with a scraper plate (11), a scraper blade (12), a waste powder bin (13) and a de-electrification device (14); the scraper plate (11) is provided corresponding to the developing magnetic roller (4); the scraper blade (12) is provided for the induction drum (6); the de-electrification device (14) is provided for the induction drum (6); and the waste powder bin (13) is provided below the scraper blade (12).

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