Self-cleaning toner cartridge for printer

Abstract

The utility model discloses a self-cleaning toner cartridge for a printer, relates to the technical field of toner cartridges, and aims to solve the technical problem that toner and impurities are easy to accumulate in the use process of a traditional toner cartridge, the self-cleaning toner cartridge comprises a toner cartridge main body, a cleaning assembly, a dust collection assembly and a filtering assembly, the toner cartridge main body comprises a photosensitive drum and a shell, and a dust collection bin is formed in the side wall of the shell; a cleaning assembly and a dust collection assembly are arranged in the shell, a filtering assembly is arranged in the dust collection bin, the cleaning assembly comprises a motor, a rotating shaft, a first gear, a second gear, a third gear, a fourth gear and a fifth gear, the side wall of the fifth gear is connected with a rotating column, and the rotating column penetrates through the side wall of the shell and is connected with a cleaning rod; a dust suction opening is formed in the side wall of the dust collection plate, and the filter assembly comprises a dust collection box arranged in the dust collection bin. The photosensitive drum cleaning device has the advantage of being capable of effectively cleaning powdered ink and impurities attached to the surface of the photosensitive drum.

Description

Technical Field

[0001] The invention relates to the technical field of toner cartridges, and more particularly to a self-cleaning toner cartridge for printers. Background Art

[0002] The toner cartridge is an important component of a laser printer, which mainly contains the photosensitive drum and toner;

[0003] Toner cartridges play a very important role in laser printers. The photosensitive drum is responsible for receiving the laser beam and forming an electrostatic latent image. The toner is adsorbed to the latent image on the surface of the photosensitive drum under the action of static electricity. Then, after a series of processes such as transfer, the toner image is fixed on the paper to achieve print output. The quality of the toner cartridge has a great influence on the printing effect. A high-quality toner cartridge can provide clear and sharp text and images, and the toner has good uniformity and adhesion. At the same time, different models of printers usually require toner cartridges of specific specifications.

[0004] During the use of traditional toner cartridges, a latent electrostatic image is formed on the photosensitive drum under laser irradiation. The toner is then attracted to the surface of the photosensitive drum by static electricity and then transferred to the paper, completing the printing process. However, toner and impurities tend to adhere to the surface of the photosensitive drum and accumulate. After long-term use, a large amount of toner and impurities accumulate on the surface of the photosensitive drum, resulting in poor performance. In view of this, we propose a self-cleaning toner cartridge for printers. Utility Model Content

[0005] The purpose of the present invention is to provide a self-cleaning toner cartridge for a printer, so as to solve the technical problem that toner and impurities are easily accumulated in traditional toner cartridges during use.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a self-cleaning toner cartridge for a printer, comprising a toner cartridge body, a cleaning component, a dust collection component and a filter component;

[0007] The toner cartridge body includes a photosensitive drum and a shell, the side wall of the photosensitive drum is movably connected to the inner side wall of the shell, the side wall of the shell is provided with a dust collection bin, the cleaning component and the dust collection component are provided inside the shell, and the filter component is provided in the dust collection bin;

[0008] The cleaning assembly includes a motor arranged on the inner bottom surface of the shell, the output end of the motor is connected to a rotating shaft, the rotating shaft passes through the side wall of the shell and is connected to gear one, the circumferential side wall of gear one is meshed with gear two, the circumferential side wall of gear two is meshed with gear three, the circumferential side wall of gear three is meshed with gear four, the circumferential side wall of gear four is meshed with gear five, the side wall of gear five is connected to a rotating column, the rotating column passes through the side wall of the shell and is connected to a cleaning rod, and the gears two, three and four are rotatably connected to the outer side wall of the shell;

[0009] The circumferential side wall of the cleaning rod is provided with a plurality of support plates, the top surface of the support plates is rotatably connected to a scraper, and a plurality of springs are provided between the bottom surface of the scraper and the top surface of the support plates;

[0010] The dust collection assembly includes a dust collecting plate arranged on the lower side of the photosensitive drum, a dust collection port is provided on the side wall of the dust collection plate, an output end of the dust collection port is connected to a dust collection pipe 1, an output end of the dust collection pipe 1 is connected to a fan, an output end of the fan is connected to a dust collection pipe 2, and an output end of the dust collection pipe 2 passes through the inner bottom plate of the housing and extends into the filter assembly;

[0011] The filter assembly includes a dust collecting box connected to the second output end of the dust suction pipe, and the dust collecting box is arranged inside the dust collecting bin.

[0012] Preferably, the cleaning rod is arranged on the side of the photosensitive drum, and the side wall of the scraper is in contact with the circumferential side wall of the photosensitive drum.

[0013] Preferably, the scrapers are arranged in an array and staggered on the circumferential side wall of the cleaning rod. The scrapers are in the shape of an arc surface made of a flexible material, and the edges of the scrapers contacting the circumferential side wall of the photosensitive drum are wedge-shaped.

[0014] Preferably, the dust collecting plate is a semicircular curved surface structure, and a shield is provided above the dust suction port.

[0015] Preferably, the cleaning rod is arranged in the dust collecting plate, and the fan is arranged on the top surface of the dust collecting bin.

[0016] Preferably, a convex plate is provided on the inner bottom surface of the dust collecting bin, and a plurality of convex columns are provided above the entrance of the dust collecting bin, and the convex columns are structures formed by combining a cylinder and a sphere.

[0017] Preferably, a plurality of blocks are provided on the top surface of the dust collecting box, and the side walls of the blocks are provided with holes matching the convex columns, and the bottom surface of the dust collecting box is provided with grooves matching the convex plates.

[0018] Preferably, an inner liner is provided inside the dust box, a top cover is provided on the top surface of the inner liner, the bottom surface of the top cover is magnetically connected to the top surface of the inner liner, a plurality of first filters are provided inside the inner liner, a second filter is provided on the side wall of the inner liner, and the interior of the inner liner is divided into an ash inlet area and an air outlet area by the first filter.

[0019] Preferably, the top surface of the ash inlet area is connected to the second output end of the dust suction pipe, the air outlet area is connected to the outside through the second filter, and the first filter is plugged into the inner tank.

[0020] Preferably, the method for using the self-cleaning toner cartridge for a printer comprises the following steps:

[0021] S1. Cleaning. When the toner cartridge is in operation, the photosensitive drum rotates, which in turn drives the rotating shaft through the motor, further driving the rotation of multiple meshing gears, and then the cleaning rod through gear 5. At this time, the cleaning rod and the photosensitive drum rotate in the same direction. The multiple scrapers on the circumferential side of the cleaning rod scrape the circumferential side of the photosensitive drum, effectively removing toner and impurities attached to the circumferential side of the photosensitive drum. These toner and impurities fall onto the dust collection plate below the cleaning rod;

[0022] S2, dust collection, the fan works to suck the toner and impurities on the dust collecting plate into the dust collection pipe 1 through the dust collection port, further guide the toner and impurities from the dust collection pipe 1 into the dust collection pipe 2, and then into the dust collection box through the output end of the dust collection pipe 2;

[0023] S3. Filtering: Toner and impurities fall into the inner liner of the dust collection box. At this time, the fan continuously operates to continuously input the toner and impurities into the inner liner. The wind input into the inner liner by the fan passes through the dust inlet area, passes through the first filter, and enters the air outlet area. The toner and impurities are blocked in the dust inlet area by the first filter. The wind in the air outlet area continues to flow into the external environment through the second filter. The second filter can filter out the toner and impurities that may enter the air outlet area.

[0024] S4, cleaning, by taking the dust box out of the dust collection bin, further taking the inner liner out of the dust box, opening the top cover of the inner liner, pulling out the first filter from the inner liner, and cleaning.

[0025] Compared with the prior art, the beneficial effects of this novel method are:

[0026] 1. This new model is designed with a cleaning component. The motor drives the rotating shaft to rotate, which further drives multiple meshing gears to rotate. The cleaning rod is driven to rotate through gear 5. When the toner cartridge body is working, the photosensitive drum will rotate, causing the cleaning rod and the photosensitive drum to rotate in the same direction. The multiple scrapers on the circumferential side wall of the cleaning rod scrape the circumferential side wall of the photosensitive drum. The flexible material characteristics of the scraper ensure that the scraper will not damage the appearance structure of the photosensitive drum. The edge of the scraper that contacts the circumferential side wall of the photosensitive drum is a wedge-shaped structure, which can effectively remove toner and impurities attached to the circumferential side wall of the photosensitive drum, keep the photosensitive drum clean, and solve the problem of toner and impurities easily accumulating during use of traditional toner cartridges.

[0027] 2. The present invention is also designed with a dust suction component to suck the toner and impurities dropped on the dust collecting plate by the cleaning component into the dust collecting box. The dust suction component uses a fan to suck the toner and impurities on the dust collecting plate into the dust suction pipe one through the dust suction port, and further introduces the toner and impurities from the dust suction pipe one into the dust suction pipe two, and then introduces them into the dust collecting box through the output end of the dust suction pipe two, which can ensure that the toner and impurities on the dust collecting plate are cleaned. At the same time, the toner floating above the dust collecting plate is sucked away, further improving the cleanliness around the photosensitive drum, keeping the inside of the toner cartridge clean, and further solving the problem that traditional toner cartridges are prone to accumulate toner and impurities during use.

[0028] 3. The present invention also designs a filter component. When the fan is working continuously, toner and impurities are continuously input into the inner tank. The wind force input into the inner tank by the fan passes through the ash inlet area and the first filter into the air outlet area. The toner and impurities are blocked by the first filter in the ash inlet area. The wind force in the air outlet area continues to flow into the external environment through the second filter. The second filter can filter out the toner and impurities that may enter the air outlet area, and can ensure that the toner and impurities are filtered in the inner tank, avoiding the overflow of toner and impurities to pollute the environment, further solving the problem that the overflow of toner and impurities easily pollutes the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of the new model;

[0030] Figure 2 This is a schematic diagram of the internal structure of the new model;

[0031] Figure 3 This is a schematic diagram of the structure of the new dust collection bin;

[0032] Figure 4 This is a schematic diagram of the structure of the new cleaning component;

[0033] Figure 5 This is a schematic diagram of the structure of the new cleaning rod;

[0034] Figure 6This is an enlarged schematic diagram of the local structure of the new cleaning rod;

[0035] Figure 7 This is a schematic diagram of the scraper structure of this new type;

[0036] Figure 8 This is a schematic diagram of the structure of the new dust collection component;

[0037] Figure 9 This is a schematic diagram of the structure of the new dust collection box;

[0038] Figure 10 This is a schematic diagram of the inner liner structure of the new type;

[0039] Figure 11 This is a schematic diagram of the disassembly structure of the first filter screen of this novel invention.

[0040] Description of the numbers in the figure:

[0041] 1. Toner cartridge body; 2. Cleaning assembly; 3. Dust collection assembly; 4. Filter assembly;

[0042] 101, photosensitive drum; 102, housing; 103, dust collection bin; 104, convex plate; 105, convex column;

[0043] 201. Motor; 202. Rotating shaft; 203. Gear 1; 204. Gear 2; 205. Gear 3; 206. Gear 4; 207. Gear 5; 208. Rotating column; 209. Cleaning rod; 210. Support plate; 211. Scraper; 212. Spring;

[0044] 301, dust collecting plate; 302, dust suction port; 303, shield; 304, dust suction pipe 1; 305, fan; 306, dust suction pipe 2;

[0045] 401. Dust collection box; 402. Block; 403. Hole; 404. Groove; 405. Inner liner; 406. Top cover; 407. First filter; 408. Second filter; 409. Dust inlet area; 410. Air outlet area. DETAILED DESCRIPTION

[0046] like Figures 1 to 11 As shown, the self-cleaning toner cartridge for a printer involved in the present invention includes a toner cartridge body 1, a cleaning component 2, a dust collection component 3 and a filter component 4, wherein the toner cartridge body 1 is the prior art in the example and will not be described in detail;

[0047] The toner cartridge body 1 includes a photosensitive drum 101 and a housing 102. The side wall of the photosensitive drum 101 is movably connected to the inner wall of the housing 102. The side wall of the housing 102 is provided with a dust collection bin 103. The interior of the housing 102 is provided with a cleaning component 2 and a dust collection component 3. The dust collection bin 103 is provided with a filter component 4.

[0048] The cleaning assembly 2 includes a motor 201 disposed on the inner bottom surface of the housing 102, the output end of the motor 201 is connected to a rotating shaft 202, the rotating shaft 202 passes through the side wall of the housing 102 and is connected to a gear 1 203, the circumferential side wall of the gear 1 203 is meshed with a gear 2 204, the circumferential side wall of the gear 2 204 is meshed with a gear 3 205, the circumferential side wall of the gear 3 205 is meshed with a gear 4 206, the circumferential side wall of the gear 4 206 is meshed with a gear 5 207, the side wall of the gear 5 207 is connected to a rotating column 208, the rotating column 208 passes through the side wall of the housing 102 and is connected to a cleaning rod 209, the cleaning rod 209 is disposed on the side of the photosensitive drum 101, the side wall of the scraper 211 is in contact with the circumferential side wall of the photosensitive drum 101, the gear 2 204, the gear 3 205 and the gear 4 206 are rotatably connected to the outer wall of the housing 102;

[0049] The cleaning rod 209 is provided with a plurality of support plates 210 on the circumferential sidewall. The top surface of the support plate 210 is rotatably connected to a scraper 211. A plurality of springs 212 are provided between the bottom surface of the scraper 211 and the top surface of the support plate 210. The scrapers 211 are arranged in an array and staggered on the circumferential sidewall of the cleaning rod 209. The scrapers 211 are in the shape of an arc surface made of a flexible material. The edge of the scraper 211 that contacts the circumferential sidewall of the photosensitive drum 101 is a wedge-shaped structure.

[0050] In the embodiment of the present invention, by designing a cleaning component 2, the motor 201 is used to drive the rotating shaft 202 to rotate, further driving a plurality of mutually meshing gears to rotate, and the cleaning rod 209 is driven to rotate through the gear five 207. When the toner cartridge body 1 is working, the photosensitive drum 101 will rotate, causing the cleaning rod 209 to rotate in the same direction as the photosensitive drum 101, and the plurality of scrapers 211 on the circumferential side wall of the cleaning rod 209 scrape the circumferential side wall of the photosensitive drum 101. The flexible material properties of the scraper 211 ensure that the scraper 211 will not damage the appearance structure of the photosensitive drum 101. The edge of the scraper 211 that contacts the circumferential side wall of the photosensitive drum 101 is a wedge-shaped structure, which can effectively remove toner and impurities attached to the circumferential side wall of the photosensitive drum 101 and keep the photosensitive drum 101 clean.

[0051] The dust collection assembly 3 includes a dust collecting plate 301 disposed on the lower side of the photosensitive drum 101. A dust collection port 302 is disposed on the side wall of the dust collecting plate 301. The output end of the dust collection port 302 is connected to a dust collection pipe 1 304. The output end of the dust collection pipe 1 304 is connected to a fan 305. The output end of the fan 305 is connected to a dust collection pipe 2 306. The output end of the dust collection pipe 2 306 passes through the inner bottom plate of the housing 102 and extends into the filter assembly 4.

[0052] The filter assembly 4 includes a dust box 401 connected to the output end of the second dust suction pipe 306, and the dust box 401 is arranged inside the dust collection bin 103;

[0053] In the embodiment of the present invention, by designing a dust suction component 3, the toner and impurities dropped on the dust collecting plate 301 by the cleaning component 2 are sucked into the dust collecting box 401, and the dust suction component 3 uses the fan 305 to suck the toner and impurities on the dust collecting plate 301 into the dust suction pipe 1 304 through the dust suction port 302, and further introduce the toner and impurities from the dust suction pipe 1 304 into the dust suction pipe 2 306, and then introduce them into the dust collecting box 401 through the output end of the dust suction pipe 2 306, which can ensure that the toner and impurities on the dust collecting plate 301 are cleaned up. At the same time, the toner floating above the dust collecting plate 301 is sucked away, further improving the cleanliness of the area around the photosensitive drum 101 and keeping the inside of the toner cartridge clean.

[0054] Specifically, the dust collecting plate 301 is a semi-circular curved surface structure, which can fit the shape of the photosensitive drum 101 more closely, and carry the toner and impurities cleaned by the cleaning component 2. A shield 303 is provided above the dust suction port 302, and the shield 303 can prevent the toner and impurities near the dust suction port 302 from overflowing.

[0055] Furthermore, a cleaning rod 209 is provided in the dust collecting plate 301, and a fan 305 is provided on the top surface of the dust collecting bin 103. A convex plate 104 is provided on the bottom surface of the dust collecting bin 103. A plurality of convex columns 105 are provided above the entrance of the dust collecting bin 103. The convex columns 105 are a structure formed by a combination of a cylinder and a sphere. A plurality of clamping blocks 402 are provided on the top surface of the dust collecting box 401. The side walls of the clamping blocks 402 are provided with clamping holes 403 matching the convex columns 105. The dust collecting box 401 is fixed by embedding the convex columns 105 into the clamping holes 403. The bottom surface of the dust collecting box 401 is provided with a groove 404 that fits with the convex plate 104. The convex plate 104 is used to slide in the groove 404 to form a sliding fit between the dust collecting box 401 and the inside of the dust collecting bin 103.

[0056] Furthermore, the dust box 401 is provided with an inner liner 405, the top surface of the inner liner 405 is provided with a top cover 406, the bottom surface of the top cover 406 is magnetically connected to the top surface of the inner liner 405, a plurality of first filters 407 are provided inside the inner liner 405, and a second filter 408 is provided on the side wall of the inner liner 405. The interior of the inner liner 405 is divided into an ash inlet area 409 and an air outlet area 410 by the first filter 407. The top surface of the ash inlet area 409 is connected to the output end of the dust collection pipe 306, and the air outlet area 410 is connected to the outside through the second filter 408. The first filter 407 is plugged into the inner liner 405;

[0057] In an embodiment of the present invention, by designing the filter component 4, when the fan 305 is working continuously, the toner and impurities are continuously input into the inner tank 405, and the wind force input into the inner tank 405 by the fan 305 passes through the ash inlet area 409 and the first filter 407 into the air outlet area 410. The toner and impurities are blocked by the first filter 407 in the ash inlet area 409, and the wind force in the air outlet area 410 continues to flow into the external environment through the second filter 408. The second filter 408 can filter out the toner and impurities that may enter the air outlet area 410, and can ensure that the toner and impurities are filtered in the inner tank 405, thereby preventing the toner and impurities from overflowing and polluting the environment.

[0058] Working principle: This embodiment provides a self-cleaning toner cartridge for a printer. When in use, when the toner cartridge body 1 is working, the photosensitive drum 101 will rotate, and the motor 201 drives the rotating shaft 202 to rotate, further driving a plurality of mutually meshing gears to rotate, and the gear five 207 drives the cleaning rod 209 to rotate. At this time, the cleaning rod 209 rotates in the same direction as the photosensitive drum 101, and the plurality of scrapers 211 on the circumferential side wall of the cleaning rod 209 scrapes the circumferential side wall of the photosensitive drum 101, effectively removing the toner and impurities attached to the circumferential side wall of the photosensitive drum 101, and these toner and impurities fall onto the dust collecting plate 301 below the cleaning rod 209. The fan 305 works to suck the toner and impurities on the dust collecting plate 301 into the dust suction pipe 1 304 through the dust suction port 302, and further introduce the toner and impurities from the dust suction pipe 1 304 into the dust suction pipe 2 306, and then pass through the dust suction pipe 2 3 The output end of 06 is introduced into the dust box 401, and the toner and impurities fall into the inner liner 405 of the dust box 401. At this time, the fan 305 continues to work, and the toner and impurities are continuously input into the inner liner 405. The wind force input into the inner liner 405 by the fan 305 passes through the ash inlet area 409 and the first filter 407 into the air outlet area 410. The toner and impurities are blocked in the ash inlet area 409 by the first filter 407, and the wind force in the air outlet area 410 continues to flow into the external environment through the second filter 408. The second filter 408 can filter out the toner and impurities that may enter the air outlet area 410. By removing the dust box 401 from the dust collection bin 103, the inner liner 405 is further removed from the inside of the dust box 401, the top cover 406 of the inner liner 405 is opened, and the first filter 407 is pulled out from the inside of the inner liner 405 for cleaning.

[0059] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Ordinary technicians in this field can easily understand the spirit of this invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of this invention, they are all within the scope of protection of this invention.

Claims

1. A self-cleaning toner cartridge for a printer, characterized in that: It comprises a toner cartridge body (1), a cleaning component (2), a dust collecting component (3) and a filter component (4); The toner cartridge body (1) comprises a photosensitive drum (101) and a shell (102); the side wall of the photosensitive drum (101) is movably connected to the inner side wall of the shell (102); a dust collecting bin (103) is provided on the side wall of the shell (102); the cleaning component (2) and the dust collecting component (3) are provided inside the shell (102); and the filter component (4) is provided inside the dust collecting bin (103); The cleaning component (2) includes a motor (201) arranged on the inner bottom surface of the housing (102), the output end of the motor (201) is connected to a rotating shaft (202), the rotating shaft (202) passes through the side wall of the housing (102) and is connected to a gear one (203), the circumferential side wall of the gear one (203) is meshed with a gear two (204), the circumferential side wall of the gear two (204) is meshed with a gear three (205), the circumferential side wall of the gear three (205) is meshed with a gear four (206), the circumferential side wall of the gear four (206) is meshed with a gear five (207), the side wall of the gear five (207) is connected to a rotating column (208), the rotating column (208) passes through the side wall of the housing (102) and is connected to a cleaning rod (209), and the gear two (204), the gear three (205) and the gear four (206) are rotatably connected to the outer side wall of the housing (102); The circumferential side wall of the cleaning rod (209) is provided with a plurality of support plates (210), the top surface of the support plate (210) is rotatably connected to a scraper (211), and a plurality of springs (212) are provided between the bottom surface of the scraper (211) and the top surface of the support plate (210); The dust collection component (3) includes a dust collecting plate (301) arranged on the lower side of the photosensitive drum (101), a dust collection port (302) is provided on the side wall of the dust collection plate (301), an output end of the dust collection port (302) is connected to a dust collection pipe 1 (304), an output end of the dust collection pipe 1 (304) is connected to a fan (305), an output end of the fan (305) is connected to a dust collection pipe 2 (306), and an output end of the dust collection pipe 2 (306) passes through the inner bottom plate of the housing (102) and extends into the filter component (4); The filter assembly (4) comprises a dust collecting box (401) connected to the output end of the second dust suction pipe (306), and the dust collecting box (401) is arranged inside the dust collecting bin (103).

2. The self-cleaning toner cartridge for a printer according to claim 1, wherein: The cleaning rod (209) is arranged on the side of the photosensitive drum (101), and the side wall of the scraper (211) is in contact with the circumferential side wall of the photosensitive drum (101).

3. The self-cleaning toner cartridge for a printer according to claim 2, wherein: The scrapers (211) are arranged in an array and staggered on the circumferential side wall of the cleaning rod (209). The scrapers (211) are in the shape of an arc surface made of a flexible material. The edges of the scrapers (211) contacting the circumferential side wall of the photosensitive drum (101) are in a wedge-shaped structure.

4. The self-cleaning toner cartridge for a printer according to claim 3, wherein: The dust collecting plate (301) is a semicircular curved surface structure, and a shielding plate (303) is provided above the dust suction port (302).

5. The self-cleaning toner cartridge for a printer according to claim 4, characterized in that: The cleaning rod (209) is arranged in the dust collecting plate (301), and the fan (305) is arranged on the top surface of the dust collecting bin (103).

6. The self-cleaning toner cartridge for a printer according to claim 5, characterized in that: A convex plate (104) is provided on the inner bottom surface of the dust collecting bin (103), and a plurality of convex columns (105) are provided above the entrance of the dust collecting bin (103), wherein the convex columns (105) are a structure formed by combining a cylinder and a sphere.

7. The self-cleaning toner cartridge for a printer according to claim 6, characterized in that: The top surface of the dust collecting box (401) is provided with a plurality of clamping blocks (402), the side walls of the clamping blocks (402) are provided with clamping holes (403) matching the convex columns (105), and the bottom surface of the dust collecting box (401) is provided with a groove (404) matching the convex plate (104).

8. The self-cleaning toner cartridge for a printer according to claim 7, characterized in that: An inner container (405) is provided inside the dust collecting box (401), a top cover (406) is provided on the top surface of the inner container (405), a bottom surface of the top cover (406) is magnetically connected to the top surface of the inner container (405), a plurality of first filter screens (407) are provided inside the inner container (405), a second filter screen (408) is provided on the side wall of the inner container (405), and the interior of the inner container (405) is divided into an ash inlet area (409) and an air outlet area (410) by the first filter screens (407).

9. The self-cleaning toner cartridge for a printer according to claim 8, characterized in that: The top surface of the ash inlet area (409) is connected to the output end of the second dust suction pipe (306), the air outlet area (410) is connected to the outside through the second filter (408), and the first filter (407) is plugged into the inner tank (405).

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