A printer toner cartridge capable of evenly dispensing toner

Abstract

The present invention discloses a printer toner cartridge capable of evenly discharging toner, which comprises a housing. Fixed columns are fixedly installed on both sides of the housing. A sliding wheel is movably installed at one end of the fixed column away from the housing. A card slot is formed in the top of the housing, and two conductive sheets are movably installed inside the card slot. A clamping plate is hinged to the front of the housing. A support plate is fixedly installed inside the housing, and a cylindrical powder bin is fixedly installed inside the support plate. Two piston plates are movably sleeved inside the cylindrical powder bin. Through the connecting pipe, when the toner inside the toner cartridge is used up during use, an air pump is connected by the connecting pipe so that the airflow blows the cylindrical powder bin to clean the residual old toner, and the elongation and retraction of the electric telescopic column are coordinated to clean the inside of the cylindrical powder bin thoroughly. The residual toner is discharged by cooperating with the servo motor and the lead screw, and is discharged through the powder delivery pipe when the powder carbon equipment is not connected for use. After cleaning, new toner is injected through the connecting pipe, which improves the use efficiency and perfects the cooperation of the device structure.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser printers, and particularly relates to a printer toner cartridge capable of uniformly discharging toner. Background Art

[0002] Laser printers evolved from laser phototypesetting technology in the late 1980s and became popular in the mid-1990s. It is a printing output device that combines laser scanning technology and electrophotography technology. Its basic working principle is that binary data information transmitted from a computer is converted into a video signal by a video controller, and then the video signal is converted into a laser drive signal by a video interface / control system. Then, a laser beam carrying character information is generated by a laser scanning system. Finally, the electrophotography system forms an image of the laser beam and transfers it onto paper. Compared with other printing devices, laser printers have the advantages of fast printing speed and high imaging quality; however, the usage cost is relatively high.

[0003] For example, in a laser printer toner cartridge disclosed in Chinese Patent CN2819262Y, after a photosensitive drum surface charged with a uniform negative charge by a charging roller is scanned by a laser beam from the printer, an electrostatic latent image is formed on the photosensitive drum surface. The toner on the surface of the developing roller jumps onto the electrostatic latent image under the combined action of an electric field and a magnetic field, so that a visible toner image is formed on the photosensitive drum surface. The toner image on the photosensitive drum surface is transferred onto a recording medium under the action of a transfer roller of the printer, and finally the purpose of forming a toner image on the recording medium is achieved. In addition, the toner remaining on the photosensitive drum surface is scraped off by a cleaning blade and collected in a cleaning toner storage container. The connection part between the toner storage container of the toner cartridge and the fixing frame of the developing device can be disassembled and assembled only by using a screwdriver. However, there are still the following problems in its use:

[0004] 1. Due to its relatively simple structure, it is impossible to know the amount of remaining toner, and it may happen that the user is unaware when the toner runs out, which is inconvenient to use.

[0005] 2. Due to its compact structure and unclear internal components, when the toner runs out, new toner needs to be added to the toner cartridge, and the old toner in the toner cartridge needs to be removed to avoid the influence of the residual old toner on the developing quality.

[0006] 3. Due to its toner discharging unit and developing roller, it may not be possible to ensure uniform toner discharging during toner discharging, resulting in the influence on the printing quality at the printing end. Summary of the Invention

[0007] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a printer toner cartridge capable of uniformly discharging toner, which solves the problems of unknowable toner usage amount, cleaning of the toner cartridge, and uneven toner discharging.

[0008] To achieve the above object, the present invention provides the following technical solutions: A printer toner cartridge capable of evenly discharging toner, including a housing, both sides of the housing are fixedly installed with fixed columns, the ends of the fixed columns away from the housing are movably installed with sliding wheels, a card slot is opened at the top of the housing, two conductive sheets are movably installed inside the card slot, a card board is hinged to the front of the housing, a support plate is fixedly installed inside the housing, a cylindrical powder bin is fixedly installed inside the support plate, two piston plates are movably sleeved inside the cylindrical powder bin, electric telescopic columns are fixedly installed on the opposite sides of the piston plates, a limiting spring is sleeved outside the electric telescopic columns, a connecting pipe is communicated with the top of the cylindrical powder bin, sliding resistance columns are fixedly installed on both sides of the top of the support plate, sliding rings are movably sleeved outside the sliding resistance columns, a reset spring is fixedly installed on one side of the sliding ring, a pull rope is fixedly installed on the side of the sliding ring away from the reset spring, two limiting plates are fixedly installed on both sides of the inner cavity of the housing, pulleys are movably installed on the opposite sides of the two limiting plates, an L-shaped pipe is communicated with the bottom of the cylindrical powder bin, a limiting bearing is sleeved inside one side of the L-shaped pipe, a lead screw is sleeved inside the limiting bearing, and a powder delivery pipe is communicated with the bottom of the back of the housing.

[0009] Preferably, an indicator light is movably installed on one side of the top of the housing.

[0010] By adopting the above technical solution, the advantage is that it is convenient to prompt the connection status of the operator during the installation of the powder bin and for fault prompt, increasing convenience.

[0011] Preferably, the end of the electric telescopic column away from the piston plate is fixedly installed on the inner wall of the housing, one end of the limiting spring is fixedly installed on one side of the piston plate, and the other end of the limiting spring is fixedly installed on the inner wall of the housing.

[0012] By adopting the above technical solution, the advantage is that when the electric telescopic column expands and contracts, it can drive the piston plate to slide inside the cylindrical powder bin, promoting the carbon powder to fall evenly, and the limiting spring provides an initial uniform extrusion force.

[0013] Preferably, the connecting pipe penetrates through the inside of the support plate and extends to the top of the housing, and a rubber plug is movably installed inside the bottom of the connecting pipe.

[0014] By adopting the above technical solution, the advantage is that when the toner is used up, the connecting pipe is convenient for connecting an air pump to make the airflow blow the cylindrical powder bin to clean the residual old toner, and after cleaning, new toner is injected through the connecting pipe.

[0015] Preferably, the reset spring is sleeved outside the sliding resistance column, and the end of the reset spring away from the sliding ring is fixedly installed on one side of the support plate, and the end of the sliding resistance column away from the support plate is fixedly installed on the inner wall of the housing.

[0016] By adopting the above technical solution, the advantage is that when the sliding ring moves, it drives the deformation of the return spring, and the energization of the sliding resistance column indicates the passing sliding resistance current, and thus the remaining toner amount inside can be judged according to the advancement of the piston plate.

[0017] Preferably, one end of the pull rope far from the sliding ring is wound around the outside of the pulley, and one end of the pull rope far from the sliding ring and the pulley is fixedly installed on the opposite side of the piston plate.

[0018] By adopting the above technical solution, the advantage is that when the piston plate moves, the pull rope exerts a force on the pull rope, and then through the sliding and turning of the pulley, the force is applied to the sliding ring to move it relative to the sliding resistance column, thereby changing the energized resistance and the displayed current.

[0019] Preferably, a solenoid valve is movably installed inside the L-shaped pipe, the lead screw is movably sleeved inside the L-shaped pipe, and the specification size of the L-shaped pipe is adapted to the specification size of the lead screw.

[0020] By adopting the above technical solution, the advantage is that when the solenoid valve is opened, the toner in the annular toner cartridge is output through the inside of the L-shaped pipe, and the rotation of the lead screw makes the toner output evenly.

[0021] Preferably, one end of the lead screw is fixedly installed with a servo motor, and the servo motor is fixedly installed at the bottom of the inner cavity of the housing.

[0022] By adopting the above technical solution, the advantage is that when the servo motor rotates, it drives the lead screw to rotate under the action of the limit bearing, and evenly outputs the toner falling in the cylindrical toner cartridge.

[0023] Preferably, the L-shaped pipe penetrates through the housing and extends into the inside of the powder delivery pipe. A conical ring is fixedly installed on the outside of one end of the L-shaped pipe far from the cylindrical toner cartridge. A sealing ring is fixedly installed at the other end of the conical ring. The outside of the sealing ring and the conical ring is fixedly installed inside the powder delivery pipe.

[0024] By adopting the above technical solution, the advantage is that the L-shaped pipe outputs the toner in the cylindrical toner cartridge through the rotation of the lead screw, and then through the powder delivery pipe connected to the printing device in use. The conical ring and the sealing ring are convenient for butt-connecting the equipment sealing pipe to seal airtightly, which is convenient for the efficient transmission of powder delivery.

[0025] Preferably, a threaded groove is opened inside the powder delivery pipe, and a positioning groove is opened on the back surface of the housing.

[0026] By adopting the above technical solution, the advantage is that the input pipe for the printing device in use is hinged in the threaded groove, and is clamped and installed inside the printer through the positioning groove.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. By providing sliding wheels and clamping plates, during use, the operator docks the sliding wheels with the installation slide rails on both sides of the printer, and inserts the input cable of the printer into the card slot to connect with the conductive sheet. Then, the positioning slot is docked with the positioning plate of the printer, and it is then slid into the printer through the sliding wheels. Next, it is articulated into the input pipe of the printing device through the threaded groove in the powder delivery pipe. The conical ring and the sealing ring facilitate docking with the sealing pipe of the connecting device for airtight sealing before use. Then, the articulated clamping plate is clamped on the outside of the printer. During operation, the control system of the printer transmits control signals through the conductive sheet. When the printing device requires toner for operation, the solenoid valve opens, and the toner in the cylindrical toner cartridge drops into the L-shaped pipe. Then, according to the required amount, the rotation speed of the servo motor is started to drive the lead screw to rotate under the action of the limit bearing, so as to evenly output the toner dropped in the cylindrical toner cartridge. At the same time, the electric telescopic column starts to push the piston plate forward, making the toner inside the cylindrical toner cartridge fall evenly, improving the uneven toner output of the traditional printer toner cartridge and increasing the operation efficiency.

[0029] 2. By providing the electric telescopic column, when the electric telescopic column expands and contracts, it drives the piston plate to move inward along the cylindrical toner cartridge. The piston plate transmits the acting force to the pull rope on one side. The pull rope changes the direction of the acting force through the sliding of the pulley and applies the acting force on the sliding ring, driving the sliding ring to move relative to the sliding resistance column, thereby changing the energized resistance and the displayed current. This solution can effectively evenly output the toner for operation, and at the same time, the remaining toner can be transmitted to the printer device in the form of current for display, increasing the convenience of operation.

[0030] 3. By providing the connecting pipe, when the toner in the toner cartridge is used up during use, the air pump is connected through the connecting pipe to make the air flow blow to clean the residual old toner in the cylindrical toner cartridge. In cooperation with the extension and retraction of the electric telescopic column, the inside of the cylindrical toner cartridge is cleaned thoroughly. In cooperation with the servo motor and the lead screw, the residual toner is discharged, and is discharged through the powder delivery pipe when the powder carbon powder device is not connected for use. After cleaning, new toner is injected through the connecting pipe, increasing the use efficiency and improving the cooperation of the device structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a front perspective external structure schematic diagram of the present invention;

[0032] Figure 2 is a rear perspective external structure schematic diagram of the present invention;

[0033] Figure 3 is a rear cross-sectional internal structure schematic diagram of the present invention;

[0034] Figure 4Schematic diagram of the internal structure of the right view cross-section of the present invention;

[0035] Figure 5 of the present invention Figure 3 Schematic diagram of the enlarged structure at position A in

[0036] Figure 6 of the present invention Figure 4 Schematic diagram of the enlarged structure at position B in

[0037] Figure 7 of the present invention Figure 4 Schematic diagram of the enlarged structure at position C in

[0038] In the figure: 1, housing; 2, fixed column; 3, sliding wheel; 4, indicator light; 5, clamping plate; 6, conductive sheet; 7, card slot; 8, rubber plug; 9, positioning groove; 10, threaded groove; 11, powder delivery pipe; 12, connecting pipe; 13, sliding resistance column; 14, return spring; 15, sliding ring; 16, pull rope; 17, pulley; 18, limiting plate; 19, electric telescopic column; 20, limiting spring; 21, piston plate; 22, cylindrical powder bin; 23, lead screw; 24, servo motor; 25, L-shaped pipe; 26, support plate; 27, conical ring; 28, sealing ring; 29, limiting bearing; 30, solenoid valve. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Embodiment 1:

[0041] Please refer to Figures 1-7, the present invention provides a technical solution: a printer toner cartridge capable of evenly discharging powder, which includes a housing 1. Fixed columns 2 are fixedly installed on both sides of the housing 1. A sliding wheel 3 is movably installed at one end of the fixed column 2 away from the housing 1. A card slot 7 is opened at the top of the housing 1. Two conductive sheets 6 are movably installed inside the card slot 7. A clamping plate 5 is hinged to the front of the housing 1. A support plate 26 is fixedly installed inside the housing 1. A cylindrical powder bin 22 is fixedly installed inside the support plate 26. Two piston plates 21 are movably sleeved inside the cylindrical powder bin 22. Electric telescopic columns 19 are fixedly installed on the opposite sides of the piston plates 21. A limiting spring 20 is sleeved outside the electric telescopic column 19. A connecting pipe 12 is communicated with the top of the cylindrical powder bin 22. Sliding resistance columns 13 are fixedly installed on both sides of the top of the support plate 26. A sliding ring 15 is movably sleeved outside the sliding resistance column 13. A return spring 14 is fixedly installed on one side of the sliding ring 15. A pull rope 16 is fixedly installed on the side of the sliding ring 15 away from the return spring 14. Two limiting plates 18 are fixedly installed on both sides of the inner cavity of the housing 1. A pulley 17 is movably installed on the opposite sides of the two limiting plates 18. An L-shaped pipe 25 is communicated with the bottom of the cylindrical powder bin 22. A limiting bearing 29 is sleeved inside one side of the L-shaped pipe 25. A lead screw 23 is sleeved inside the limiting bearing 29. A powder delivery pipe 11 is communicated with the bottom of the back of the housing 1. A solenoid valve 30 is movably installed inside the L-shaped pipe 25. The lead screw 23 is movably sleeved inside the L-shaped pipe 25. The specification size of the L-shaped pipe 25 is adapted to the specification size of the lead screw 23. One end of the lead screw 23 is fixedly installed with a servo motor 24. The servo motor 24 is fixedly installed at the bottom of the inner cavity of the housing 1. The L-shaped pipe 25 penetrates through the housing 1 and extends into the powder delivery pipe 11. A conical ring 27 is fixedly installed on the outside of the end of the L-shaped pipe 25 away from the cylindrical powder bin 22. A sealing ring 28 is fixedly installed at the other end of the conical ring 27. The outside of the sealing ring 28 and the conical ring 27 is fixedly installed inside the powder delivery pipe 11.

[0042] In this implementation, through the set sliding wheel 3 and clamping plate 5, during use, the operator docks the sliding wheel 3 with the installation slide rails on both sides of the printer, and snaps the input cable of the printer into the card slot 7 to connect with the conductive sheet 6. Then, the positioning slot 9 is docked with the positioning plate of the printer, and then it is slid into the printer through the sliding wheel 3. The input pipe of the printing device is articulated into the threaded groove 10 in the powder delivery pipe 11. The conical ring 27 and the sealing ring 28 facilitate docking with the sealing pipe of the connecting device for airtight sealing before use. Then, the articulated clamping plate 5 is clamped on the outside of the printer. During operation, the control system of the printer transmits control signals through the conductive sheet 6. When the printing device requires toner operation, the solenoid valve 30 is opened, and the toner in the cylindrical powder bin 22 falls into the L-shaped pipe 25. Then, according to the required amount, the rotation speed of the servo motor 24 is started to drive the lead screw 23 to rotate under the action of the limit bearing 29. The lead screw 23 is in close contact with the inner wall of the L-shaped pipe 25, and under the support of the toner output spirally inside, the L-shaped pipe 25, the limit bearing 29, and the servo motor 24, the structural force is maintained stable, which improves the operation efficiency and evenly outputs the toner falling from the cylindrical powder bin 22. At the same time, the electric telescopic column 19 is activated to push the piston plate 21 forward, so that the toner inside the cylindrical powder bin 22 falls evenly, improving the uneven toner output of the traditional printer toner cartridge and increasing the operation efficiency. Furthermore, when the electric telescopic column 19 expands and contracts, it drives the piston plate 21 to move inward along the cylindrical powder bin 22. The piston plate 21 transmits the acting force to the pull rope 16 on one side. The pull rope 16 applies the acting force to the sliding ring 15 through the sliding and turning of the pulley 17, and drives the sliding ring 15 to move relative to the sliding resistance column 13, thereby changing the energized resistance and the displayed current. This solution can effectively evenly output the toner for operation, and at the same time, the remaining toner can be transmitted to the printer device in the form of current for display, increasing the convenience of operation.

[0043] Embodiment 2:

[0044] As Figures 1-7 shown, on the basis of Embodiment 1, the present invention provides a technical solution: One side of the top of the housing 1 is movably installed with an indicator light 4. A threaded groove 10 is provided inside the powder delivery pipe 11, and a positioning slot 9 is provided on the back of the housing 1.

[0045] In this embodiment, the indicator light 4 facilitates prompting the operator of the connection status during the installation of the powder bin and the function of fault indication, increasing convenience. The positioning groove 9 helps the operator to dock with the printing device more quickly during installation. The input pipe of the printing device is hingedly connected through the threaded groove 10 in the powder delivery pipe 11. The conical ring 27 and the sealing ring 28 facilitate the airtight sealing of the connection device's sealing pipe, facilitating the efficient transmission of powder. At the same time, the input end of the conductive sheet 6 is electrically connected to the output end of the sliding resistance column 13 through a wire, and the output end of the conductive sheet 6 is electrically connected to the input ends of the indicator light 4, the sliding ring 15, the electric telescopic column 19, the servo motor 24, and the solenoid valve 30 through wires, facilitating the printing device to be connected to the toner cartridge through the conductive sheet 6 and controlled by the control system of the printer.

[0046] Embodiment Three:

[0047] As Figures 1-7 shown, on the basis of Embodiment One and Embodiment Two, the present invention provides a technical solution: One end of the electric telescopic column 19 away from the piston plate 21 is fixedly installed on the inner wall of the housing 1. One end of the limit spring 20 is fixedly installed on one side of the piston plate 21, and the other end of the limit spring 20 is fixedly installed on the inner wall of the housing 1. The reset spring 14 is sleeved on the outside of the sliding resistance column 13, and one end of the reset spring 14 away from the sliding ring 15 is fixedly installed on one side of the support plate 26. One end of the sliding resistance column 13 away from the support plate 26 is fixedly installed on the inner wall of the housing 1. One end of the pull rope 16 away from the sliding ring 15 is wound around the outside of the pulley 17, and one end of the pull rope 16 away from the sliding ring 15 and the pulley 17 is fixedly installed on the opposite side of the piston plate 21.

[0048] In this embodiment, when the electric telescopic column 19 expands and contracts, it drives the piston plate 21 to move inward along the cylindrical powder bin 22. The piston plate 21 transfers the acting force to the pull rope 16 on one side. The pull rope 16 applies the acting force on the sliding ring 15 through the sliding and turning of the pulley 17, and drives the sliding ring 15 to move relative to the sliding resistance column 13, thereby changing the energized resistance and the displayed current. This solution can transfer the remaining toner to the printer device in the form of current for display, increasing the convenience of the operation.

[0049] Embodiment Four:

[0050] As Figures 1-7 shown, on the basis of Embodiment One, Embodiment Two, and Embodiment Three, the present invention provides a technical solution: The connecting pipe 12 penetrates through the inside of the support plate 26 and extends to the top of the housing 1. A rubber plug 8 is movably installed inside the bottom of the connecting pipe 12.

[0051] In this embodiment, through the provided connecting pipe 12, when the toner in the toner cartridge is used up during use, the rubber plug 8 is pulled out, and the air pump is connected by the connecting pipe 12 so that the air flow blows the cylindrical powder bin 22 to clean the residual old powder. The elongation and retraction of the electric telescopic column 19 are used to clean the inside of the cylindrical powder bin 22 thoroughly. The servo motor 24 and the lead screw 23 are used to discharge the residual toner. When the powder feeding pipe 11 is not connected to the toner using equipment, the toner is discharged, and after cleaning, new toner is injected through the connecting pipe 12. After use, the rubber plug 8 is inserted, which improves the use efficiency and perfects the cooperation of the device structure.

[0052] The working principle and usage process of the present invention: During use, the operator docks the sliding wheel 3 with the installation slide rails on both sides of the printer, and clips the input cable of the printer into the card slot 7 to connect with the conductive sheet 6. Then, the positioning slot 9 is docked with the positioning plate of the printer, and then it is slid into the printer through the sliding wheel 3. The input pipe of the printing use equipment is articulated in the thread groove 10 in the powder feeding pipe 11. The conical ring 27 and the sealing ring 28 are convenient for docking and connecting the sealing pipe of the equipment to seal airtightly and then use. Then, the articulated clamping plate 5 is clamped on the outside of the printer. When the printer is operating, the control system of the printer transmits the control signal through the conductive sheet 6. When the printing equipment needs toner for operation, the solenoid valve 30 is opened, and the toner in the cylindrical powder bin 22 falls into the L-shaped pipe 25. Then, according to the required amount, the rotation speed of the servo motor 24 is started to drive the lead screw 23 to rotate under the action of the limit bearing 29. The lead screw 23 is closely attached to the inner wall of the L-shaped pipe 25, and under the support of the toner spirally output inside, the L-shaped pipe 25, the limit bearing 29, and the servo motor 24, the structural force is maintained stable, which improves the operation efficiency and evenly outputs the toner falling in the cylindrical powder bin 22. At the same time, the electric telescopic column 19 is started to push the piston plate 21 to move forward, so that the toner in the cylindrical powder bin 22 falls evenly, improving the uneven toner output situation of the traditional printer toner cartridge and increasing the operation efficiency. Furthermore, when the electric telescopic column 19 expands and contracts, it drives the piston plate 21 to move inward along the cylindrical powder bin 22. The piston plate 21 transmits the acting force to the pull rope 16 on one side. The pull rope 16 applies the acting force to the sliding ring 15 through the sliding and turning of the pulley 17, and drives the sliding ring 15 to move relative to the sliding resistance column 13, thereby changing the energized resistance and the displayed current. This solution can effectively evenly output the toner for operation, and at the same time, the remaining toner can be transmitted to the printer equipment in the form of current for display, increasing the convenience of operation.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printer toner cartridge capable of evenly discharging toner, comprising a housing (1), characterized in that: On both sides of the said housing (1), fixed columns (2) are fixedly installed. At the end of the fixed column (2) far from the housing (1), a sliding wheel (3) is movably installed. A clamping groove (7) is opened at the top of the housing (1). Inside the clamping groove (7), two conductive sheets (6) are movably installed. A clamping plate (5) is hinged to the front of the housing (1). Inside the housing (1), a support plate (26) is fixedly installed. Inside the support plate (26), a cylindrical powder bin (22) is fixedly installed. Inside the cylindrical powder bin (22), two piston plates (21) are movably sleeved. On the opposite sides of the piston plate (21), electric telescopic columns (19) are fixedly installed. Outside the electric telescopic column (19), a limiting spring (20) is sleeved. The top of the cylindrical powder bin (22) communicates with a connecting pipe (12). On both sides of the top of the support plate (26), sliding resistance columns (13) are fixedly installed. Outside the sliding resistance column (13), a sliding ring (15) is movably sleeved. On one side of the sliding ring (15), a reset spring (14) is fixedly installed. On the side of the sliding ring (15) far from the reset spring (14), a pull rope (16) is fixedly installed. On both sides of the inner cavity of the housing (1), two limiting plates (18) are fixedly installed. On the opposite sides of the two limiting plates (18), a pulley (17) is movably installed. The bottom of the cylindrical powder bin (22) communicates with an L-shaped pipe (25). Inside one side of the L-shaped pipe (25), a limiting bearing (29) is sleeved. Inside the limiting bearing (29), a lead screw (23) is sleeved. At the bottom of the back of the housing (1), a powder delivery pipe (11) communicates; On one side of the top of the housing (1), an indicator light (4) is movably installed; The end of the pull rope (16) far from the sliding ring (15) is wound around the outside of the pulley (17). The end of the pull rope (16) far from the sliding ring (15) and the pulley (17) is fixedly installed on the opposite sides of the piston plate (21).

2. The printer toner cartridge capable of evenly discharging toner according to claim 1, wherein: The end of the electric telescopic column (19) far from the piston plate (21) is fixedly installed on the inner wall of the housing (1). One end of the limiting spring (20) is fixedly installed on one side of the piston plate (21). The other end of the limiting spring (20) is fixedly installed on the inner wall of the housing (1).

3. The printer toner cartridge capable of evenly discharging toner according to claim 1, wherein: The connecting pipe (12) penetrates through the inside of the support plate (26) and extends to the top of the housing (1). Inside the bottom of the connecting pipe (12), a rubber plug (8) is movably installed.

4. A printer toner cartridge capable of evenly dispensing toner according to claim 1, wherein: The reset spring (14) is sleeved outside the sliding resistance column (13). And the end of the reset spring (14) far from the sliding ring (15) is fixedly installed on one side of the support plate (26). The end of the sliding resistance column (13) far from the support plate (26) is fixedly installed on the inner wall of the housing (1).

5. A printer toner cartridge capable of evenly discharging toner according to claim 1, characterized in that: Inside the L-shaped pipe (25), a solenoid valve (30) is movably installed. The lead screw (23) is movably sleeved inside the L-shaped pipe (25). The specification size of the L-shaped pipe (25) is adapted to the specification size of the lead screw (23).

6. The printer toner cartridge capable of evenly discharging toner according to claim 5, wherein: One end of the lead screw (23) is fixedly installed with a servo motor (24), and the servo motor (24) is fixedly installed at the bottom of the inner cavity of the housing (1).

7. A printer toner cartridge capable of evenly discharging toner according to claim 6, characterized in that: The L-shaped pipe (25) penetrates through the housing (1) and extends into the powder conveying pipe (11). A conical ring (27) is fixedly installed on the outer side of the end of the L-shaped pipe (25) far from the cylindrical powder bin (22). The other end of the conical ring (27) is fixedly installed with a sealing ring (28), and the outer sides of the sealing ring (28) and the conical ring (27) are fixedly installed inside the powder conveying pipe (11).

8. A printer toner cartridge capable of evenly discharging toner according to claim 1, characterized in that: A threaded groove (10) is provided inside the powder conveying pipe (11), and a positioning groove (9) is provided on the back surface of the housing (1).

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