A new TN289 toner cartridge

Abstract

The utility model provides a new TN289 toner cartridge, which includes a powder cartridge body, a conductive side cover and a gear side cover are respectively arranged at both ends of the powder cartridge body, a conductive bracket is integrally formed on the outer side of the conductive side cover, a chip rack mounting piece and a developing roller positioning bracket are integrally formed on the outer side of the gear side cover, a chip rack is arranged in the chip rack mounting piece by a snap-on sliding manner, and a buffer spring is arranged between the chip rack and the chip rack mounting piece, a chip slot for accommodating an identification chip is arranged at the lower end of the chip rack, a developing roller is arranged between the conductive side cover and the gear side cover, and a bracket end matched with the developing roller positioning bracket and a conductive end matched with the conductive bracket are respectively arranged at both ends of the developing roller. The utility model relates to the technical field of toner cartridges.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon powder cartridges, in particular to a novel TN289 carbon powder cartridge. Background Art

[0002] There is a TN289 model toner cartridge on the market. The installation structure design of its internal components has some inherent limitations and manufacturing cost issues. Specifically, when the chip holder is installed on the chip holder, the chip holder can move freely to a certain extent due to the use of rounded square groove limiters. This design brings operational inconvenience during the process of docking the chip and the identification element when the device is put down, and also increases the difficulty of assembly and potential instability.

[0003] In addition, the developing roller bracket and the gear side cover adopt a split design, and the positioning and installation of the developing roller are completed through the cooperation of multiple components such as the developing roller positioning hole, the bracket buckle and the bracket positioning column. This design not only increases the number of parts and components, but also complicates the injection molding process, thereby pushing up production costs; and the chip holder installed on the gear side cover will shake, and when docking the printer, the machine will not be recognized due to misalignment; at the same time, the conductive bracket and the conductive side cover are also split designs. The conductive end of the developing roller needs to pass through the conductive end cover positioning hole and then be fixed by the external conductive bracket. This series of complex assembly processes may not only lead to additional parts requirements, but also there is a risk of abnormal operation of the toner cartridge due to accidental loosening.

[0004] In addition, the positioning structure of the original TN289 toner cartridge powder holder is relatively complicated, and it is fixed with three screws on the left, middle and right sides, which undoubtedly increases the complexity of the overall structure and the maintenance cost; and the original toner cartridge does not have the function of repeated powder filling, and is a one-time use product, which does not meet the requirements of modern office for resource conservation and environmental protection.

[0005] Therefore, it is imperative to redesign a new TN289 toner cartridge. Utility Model Content

[0006] In view of the defects of the above-mentioned prior art, the utility model provides a new TN289 toner cartridge, aiming to solve the problems of the prior art TN289 toner cartridge having complex internal component installation structure, poor stability, high assembly and maintenance costs, and inconvenience in repeated filling of toner.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a new TN289 toner cartridge, which includes a powder box body, wherein a conductive side cover and a gear side cover are respectively arranged at both ends of the powder box body, a conductive bracket is integrally formed on the outer side of the conductive side cover, a chip rack mounting piece and a developing roller positioning bracket are integrally formed on the outer side of the gear side cover, a chip rack is arranged in the chip rack mounting piece by a snap-on sliding manner, and a buffer spring is arranged between the chip rack and the chip rack mounting piece, a chip slot for accommodating an identification chip is arranged at the lower end of the chip rack, a developing roller is arranged between the conductive side cover and the gear side cover, and a bracket end cooperating with the developing roller positioning bracket and a conductive end cooperating with the conductive bracket are respectively arranged at both ends of the developing roller.

[0008] Based on the above, the beneficial effect of a new TN289 toner cartridge is to solve the problems of complex internal component installation structure, poor stability, high assembly and maintenance costs, and inconvenience in repeated filling of toner in the prior art TN289 toner cartridge; mainly reflected in:

[0009] 1. The utility model redesigns the structural coordination between the chip rack mounting member and the chip rack, adopts a snap-on sliding method and adds a buffer spring, which effectively limits the free movement of the chip rack and improves the operational convenience and installation stability when the chip and the identification element are docked;

[0010] 2. The utility model abandons the original split design of the developing roller bracket and the gear side cover, the conductive bracket and the conductive side cover, and changes to an integrated molding structure, which reduces the number of parts, simplifies the injection molding process, reduces production costs, and reduces the risk of abnormal operation caused by complex assembly;

[0011] 3. The utility model makes the installation of the developing roller bracket end and the conductive end more accurate and reliable by rationally arranging the developing roller positioning bracket and the conductive bracket, ensuring that the bracket end can be firmly fixed in the developing roller positioning bracket, and the conductive end can be firmly fixed in the conductive bracket, reducing the need for additional parts and improving the overall operation stability;

[0012] Furthermore, a chip rack groove is provided at the lower end of the chip rack mounting piece, an avoidance hole is provided on one side of the upper end of the chip rack groove, and a limiting platform is provided on the other side of the corresponding position, a spring positioning column is provided at the upper end of the chip rack groove and between the avoidance hole and the limiting platform, the chip rack is provided in the chip rack groove, and snap pins are symmetrically provided on both sides of the upper end of the chip rack, one of the snap pins is snapped to the outside of the avoidance hole, and the other snap pin is snapped to the upper end of the limiting platform, and the buffer spring is connected between the middle of the upper end of the chip rack and the spring positioning column.

[0013] Based on the above, the beneficial effect of the chip rack groove is to provide a stable chip rack embedding space, combined with the design of avoidance holes, limit platforms and spring positioning columns, to ensure that the chip rack is firmly installed and has a buffering and shock-absorbing function, thereby enhancing the convenience and stability of chip installation; the beneficial effect of the avoidance holes and limit platforms is to ensure that the chip rack can be accurately positioned during the sliding and snapping process, to prevent the chip rack from being pulled out at will after being pushed in, thereby improving the chip installation accuracy; the beneficial effect of the spring positioning column is to cooperate with the buffer spring to form effective support and rebound force control for the chip rack, which helps to absorb impact force and ensure the long-term stable operation of internal components; the beneficial effect of the snap pin is to achieve fast, easy and stable installation and disassembly of the chip rack through cooperation with the avoidance holes and limit platforms, thereby improving assembly efficiency.

[0014] Furthermore, a conductive bracket groove is provided on the inner side of the conductive side cover, the conductive bracket groove is formed in the conductive bracket, and the conductive terminal is adapted to fit in the conductive bracket groove.

[0015] Based on the above, the beneficial effect of the conductive bracket groove is to realize the integrated installation of the conductive end of the developing roller, simplify the structure, reduce the cost, and enhance the reliability of the electrical contact.

[0016] Furthermore, a positioning bracket groove is provided on the inner side of the gear side cover, the positioning bracket groove is formed in the developing roller positioning bracket, and the bracket end is adapted to fit in the positioning bracket groove.

[0017] Based on the above, the beneficial effect of the positioning bracket groove is to provide accurate positioning for the developing roller bracket, simplify the developing roller installation steps, and improve the overall assembly efficiency and structural stability.

[0018] Furthermore, a powder discharge knife is provided on one side of the developing roller, and the powder discharge knife is changed from the original TN289 powder discharge knife to a CF217 powder discharge knife.

[0019] Based on the above, the beneficial effect of the powder knife is that the CF217 powder knife is used to replace the original part, and the number of fixing screws in the installation is reduced from five to two, thereby reducing the assembly cost.

[0020] Furthermore, a powder filling port is provided on the powder box body at one end of the conductive side cover, and the powder filling port is located on one side of the conductive side cover and is sealed by a sealing cover.

[0021] Based on the above, the beneficial effect of the powder filling port is to realize the repeated powder filling function of the toner cartridge, which not only saves user costs, but also complies with the concept of resource conservation and environmental protection.

[0022] In order to more clearly illustrate the above features of the present invention and the objectives to be achieved, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 : is a three-dimensional diagram of the utility model;

[0024] Figure 2 : It is a schematic diagram of the conductive side cover end of the utility model;

[0025] Figure 3 : It is a schematic diagram of the inner side of the conductive side cover of the utility model;

[0026] Figure 4 : It is a schematic diagram of the gear side cover end of the utility model;

[0027] Figure 5 : It is a schematic diagram of the installation of the chip rack of the utility model;

[0028] Figure 6 : It is a schematic diagram of the internal coordination of the chip rack of the utility model;

[0029] Figure 7 : It is a schematic diagram of the developing roller of the present utility model.

[0030] Description of the accompanying drawings: 1-powder box body, 2-conductive side cover, 21-conductive bracket, 22-conductive bracket slot, 3-gear side cover, 31-chip rack mounting, 311-chip rack slot, 312-avoidance hole, 313-limiting table, 314-spring positioning column, 315-chip rack, 3151-chip slot, 3152-buckle pin, 316-buffer spring, 32-developing roller positioning bracket, 4-developing roller, 41-bracket end, 42-conductive end, 6-powder filling port. DETAILED DESCRIPTION

[0031] like Figure 1-Figure 7 As shown, a new type of TN289 toner cartridge comprises a powder box body 1, wherein a conductive side cover 2 and a gear side cover 3 are respectively arranged at both ends of the powder box body 1, a conductive bracket 21 is integrally formed on the outer side of the conductive side cover 2, a chip frame mounting part 31 and a developing roller positioning bracket 32 ​​are integrally formed on the outer side of the gear side cover 3, a chip frame 315 is arranged in the chip frame mounting part 31 by a snap-on sliding manner, and a buffer spring 316 is arranged between the chip frame 315 and the chip frame mounting part 31, a chip slot 3151 for accommodating an identification chip is arranged at the lower end of the chip frame 315, a developing roller 4 is arranged between the conductive side cover 2 and the gear side cover 3, and a bracket end 41 cooperating with the developing roller positioning bracket 32 ​​and a conductive end 42 cooperating with the conductive bracket 21 are respectively arranged at both ends of the developing roller 4.

[0032] A chip rack groove 311 is provided at the lower end of the chip rack mounting member 31, an avoidance hole 312 is provided on one side of the upper end of the chip rack groove 311, and a limiting platform 313 is provided on the other side of the corresponding position, a spring positioning column 314 is provided at the upper end of the chip rack groove 311 and between the avoidance hole 312 and the limiting platform 313, the chip rack 315 is provided in the chip rack groove 311, and snap pins 3152 are symmetrically provided on both sides of the upper end of the chip rack 315, one of the snap pins 3152 is snapped to the outside of the avoidance hole 312, and the other snap pin 3152 is snapped to the upper end of the limiting platform 313, and the buffer spring 316 is connected between the middle of the upper end of the chip rack 315 and the spring positioning column 314.

[0033] A conductive bracket slot 22 is disposed on the inner side of the conductive side cover 2 . The conductive bracket slot 22 is formed in the conductive bracket 21 . The conductive terminal 42 is adapted to fit in the conductive bracket slot 22 .

[0034] A positioning bracket groove is arranged on the inner side of the gear side cover 3 , and the positioning bracket groove is formed in the developing roller positioning bracket 32 ​​, and the bracket end 41 is adapted to fit in the positioning bracket groove.

[0035] A powder discharge knife is provided on one side of the developing roller 4, and the powder discharge knife is changed from the original TN289 powder discharge knife to a CF217 powder discharge knife.

[0036] The powder box body 1 is provided with a powder filling port 6 at one end of the conductive side cover 2 . The powder filling port 6 is located at one side of the conductive side cover 2 and is sealed by a sealing cover.

[0037] To sum up, the specific implementation of the utility model is: first, the chip rack 315 is placed into the chip rack groove 311 opened at the bottom of the chip rack mounting part 31 by means of a snap-on sliding manner, and the snap-on pins 3152 symmetrically arranged on both sides of the upper end of the chip rack are respectively matched with the avoidance hole 312 and the limit platform 313 at the upper end of the chip rack groove, one snap-on pin 3152 is snapped outside the avoidance hole 312, and the other snap-on pin 3152 is snapped on the upper end of the limit platform 313. At the same time, the buffer spring 316 is connected between the middle part of the upper end of the chip frame and the spring positioning column 314, ensuring that the chip frame 315 is firmly installed and has buffering and shock-absorbing capabilities; after the developing roller 4 is placed in the powder box body 1, the bracket ends 41 at both ends of the developing roller are inserted into the positioning bracket grooves on the inner side of the gear side cover 3 for precise positioning, and the conductive end 42 is embedded in the conductive bracket groove 22 on the inner side of the conductive side cover 2, ensuring the stable installation and good conductivity of the developing roller; finally, when the toner is used up and needs to be replenished, open the powder filling port 6 at one end of the conductive side cover 2, add toner through the powder filling port 6, and then seal it with the sealing cover to realize the repeated powder filling function of the toner box;

[0038] In addition, it should be noted that the original TN289 powder knife is replaced with a CF217 powder knife, and fixed installation is performed by reducing the number of fixing screws, which simplifies the assembly process and reduces costs.

[0039] The above description is only the optimal solution embodiment of the present invention and is not intended to limit the present invention. Various modifications or substitutions made to the present invention by those skilled in the art without departing from the essence and protection scope of the present invention should also be within the protection scope of the present invention.

Claims

1. A new TN289 toner cartridge, characterized by: The invention comprises a powder box body (1), wherein two ends of the powder box body (1) are respectively provided with a conductive side cover (2) and a gear side cover (3), the outer side of the conductive side cover (2) is integrally formed with a conductive bracket (21), the outer side of the gear side cover (3) is integrally formed with a chip frame mounting piece (31) and a developing roller positioning bracket (32), a chip frame (315) is arranged in the chip frame mounting piece (31) by means of a snap-fit ​​sliding manner, and a buffer spring (316) is arranged between the chip frame (315) and the chip frame mounting piece (31), a chip slot (3151) for accommodating an identification chip is arranged at the lower end of the chip frame (315), a developing roller (4) is arranged between the conductive side cover (2) and the gear side cover (3), and the two ends of the developing roller (4) are respectively provided with a bracket end (41) matched with the developing roller positioning bracket (32) and a conductive end (42) matched with the conductive bracket (21).

2. A new TN289 toner cartridge according to claim 1, characterized in that: A chip rack groove (311) is provided at the lower end of the chip rack mounting member (31), an avoidance hole (312) is provided on one side of the upper end of the chip rack groove (311), and a limiting platform (313) is provided on the other side at a corresponding position, a spring positioning column (314) is provided at the upper end of the chip rack groove (311) and between the avoidance hole (312) and the limiting platform (313), the chip rack (315) is provided in the chip rack groove (311), buckle pins (3152) are symmetrically provided on both sides of the upper end of the chip rack (315), one of the buckle pins (3152) is buckled outside the avoidance hole (312), and the other of the buckle pins (3152) is buckled on the upper end of the limiting platform (313), and the buffer spring (316) is connected between the middle of the upper end of the chip rack (315) and the spring positioning column (314).

3. A new TN289 toner cartridge according to claim 1, characterized in that: A conductive bracket groove (22) is provided on the inner side of the conductive side cover (2), the conductive bracket groove (22) is formed in the conductive bracket (21), and the conductive terminal (42) is adapted to fit in the conductive bracket groove (22).

4. A new TN289 toner cartridge according to claim 1, characterized in that: A positioning bracket groove is provided on the inner side of the gear side cover (3), the positioning bracket groove is formed in the developing roller positioning bracket (32), and the bracket end (41) is adapted to fit in the positioning bracket groove.

5. A new TN289 toner cartridge according to claim 1, characterized in that: A powder discharge knife is provided on one side of the developing roller (4), and the powder discharge knife is changed from an original TN289 powder discharge knife to a CF217 powder discharge knife.

6. A new TN289 toner cartridge according to claim 1, characterized in that: A powder filling port (6) is provided on the powder box body (1) at one end of the conductive side cover (2); the powder filling port (6) is located on one side of the conductive side cover (2) and is sealed by a sealing cover.

Images