A new D203 toner cartridge

Abstract

The utility model provides a novel D203 toner cartridge, including powder storehouse and with the detachable connection of waste powder storehouse, the both ends of waste powder storehouse are provided with waste powder storehouse section gear end cover and waste powder storehouse section conductive end cover respectively, first maintenance window and second maintenance window are set up respectively on waste powder storehouse section gear end cover and waste powder storehouse section conductive end cover, the inside of waste powder storehouse is provided with photosensitive drum and the charging roller assembly and cleaning doctor of being located photosensitive drum same side, the charging roller assembly includes charging roller, two charging roller support of clamping charging roller both ends respectively and the spring of acting between charging roller support and the inner surface of waste powder storehouse, first maintenance window and second maintenance window respectively expose the assembly position of charging roller support and spring, and first maintenance window and second maintenance window are in the axial direction with the assembly position of charging roller support and spring directly opposite. The utility model relates to carbon powder box technical field.

Description

Technical Field

[0001] This utility model relates to the field of toner cartridge technology, and in particular to a novel D203 toner cartridge. Background Technology

[0002] With the widespread use of printing equipment, the structural design and production cost of toner cartridges, as core consumables, have received continuous attention. Existing toner cartridges typically employ a separate structure connecting the toner and waste toner compartments. Internally, they contain key components such as the photosensitive drum, charging roller, and cleaning blade, connected by gear and conductive end caps for power transmission and electrical connection. To improve compatibility and reduce production costs, the industry has seen a design approach that uses universal components to replace dedicated ones. For example, universal charging roller supports or cleaning blades are being tested in specific toner cartridge models, aiming to reduce manufacturing and maintenance costs through standardization.

[0003] However, the existing toner cartridge structure still has obvious shortcomings: its end cap is mostly closed or only has a simple observation port, making it impossible to directly operate and maintain the assembly position of vulnerable or adjustable components such as charging roller brackets and springs. If problems such as poor contact or spring failure of the charging roller occur, the toner cartridge often needs to be completely disassembled, which is cumbersome and can easily cause secondary damage. At the same time, in order to achieve the compatibility of universal components, it is often necessary to make significant modifications to the overall structure, which increases the complexity and uncertainty of the process and fails to truly achieve a balance between low cost, high reliability and easy maintenance.

[0004] Therefore, the inventors urgently need a new type of D203 toner cartridge with a convenient maintenance window structure, optimized compatibility of general components, and significantly improved assembly reliability to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, this utility model provides a new type of D203 toner cartridge, which aims to solve the technical problems of inconvenient maintenance, poor compatibility of general components and complicated disassembly and assembly process caused by the closed end cap structure of the toner cartridge in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel D203 toner cartridge, comprising a toner hopper and a waste toner hopper detachably connected to the toner hopper. The waste toner hopper has a gear end cap and a conductive end cap at both ends. A first maintenance window and a second maintenance window are respectively provided on the gear end cap and the conductive end cap. A photosensitive drum, a charging roller assembly, and a cleaning scraper are disposed inside the waste toner hopper. The charging roller assembly includes a charging roller, two charging roller supports that clamp both ends of the charging roller, and a spring acting between the charging roller supports and the inner surface of the waste toner hopper. The first and second maintenance windows expose the assembly positions of the charging roller supports and the spring, and the first and second maintenance windows are axially aligned with the assembly positions of the charging roller supports and the spring.

[0007] Based on the above, the advantages of a new type of D203 toner cartridge are that it solves the technical problems of inconvenient maintenance, poor compatibility of universal parts, and complex disassembly and assembly processes caused by the closed end cap structure of existing toner cartridges; mainly reflected in: 1. This utility model has a first maintenance window and a second maintenance window respectively opened on the gear end cover of the waste powder bin section and the conductive end cover of the waste powder bin section. These two windows are axially aligned with the assembly positions of the charging roller bracket and spring located at both ends of the charging roller, which allows direct observation and operation of the assembly status of the internal key components from the outside of the toner box, and maintenance or replacement can be carried out without disassembling the overall structure. 2. This utility model achieves rapid adaptation and pressure adjustment of universal charging roller brackets by using the two charging roller brackets that clamp the two ends of the charging roller in the charging roller assembly, the springs that act between the charging roller brackets and the inner surface of the waste powder bin, and the maintenance window that exposes the assembly position. This ensures the compatibility and stability of different universal components. 3. This utility model, through the assembly method of detachable connection between the toner hopper and the waste toner hopper and the visualization design of the internal structure through the maintenance windows on both sides, realizes that only specific parts need to be operated during the maintenance process without completely disassembling the entire toner box, which significantly simplifies the disassembly and assembly process and reduces the complexity of operation.

[0008] Furthermore, the photosensitive drum is integrally integrated with a drive head assembly on one side of the waste powder hopper gear end cover. A thin sheet portion extends from the end face of the waste powder hopper gear end cover on one side of the photosensitive drum. A circular opening is provided on the thin sheet portion, and the drive head assembly is confined within the circular opening.

[0009] Based on the above, the beneficial effects of the drive head assembly are that it simplifies the transmission structure and ensures reliable connection, reduces assembly steps and improves transmission efficiency; the beneficial effect of the thin plate is that it enables the positioning and support of the drive head assembly; and the beneficial effect of the round opening is that it enables the limiting and stable fixing of the drive head assembly, ensuring the precise transmission of the photosensitive drum.

[0010] Furthermore, spring support platforms are provided on the surface inside the waste powder bin corresponding to both sides of the cleaning scraper, and the springs are connected between the charging roller bracket and the spring support platforms.

[0011] Based on the above, the beneficial effect of the spring support platform is that it provides a stable and reliable mounting support point for the spring, and realizes the effective transmission and maintenance of the spring force.

[0012] Furthermore, the conductive end cover of the waste toner hopper section is provided with a first conductive sheet arranged laterally to avoid the second maintenance window. The first conductive sheet is electrically connected to the charging roller and is a metal conductive sheet. The conductive end cover of the toner hopper section is provided with three second conductive sheets. The three second conductive sheets are electrically connected to the printing components inside the toner hopper. The second conductive sheets are injection molded onto the conductive end cover of the toner hopper section using conductive composite material.

[0013] Based on the above, the beneficial effects of the first conductive sheet are that it establishes a reliable electrical connection between the printer and the charging roller while avoiding the second maintenance window, ensuring a stable power supply during the charging process; the beneficial effects of the second conductive sheet are that it establishes an electrical connection with the printing components in the toner cartridge, ensuring the transmission of printing signals and electrical energy; the beneficial effects of the conductive composite material injection molding are that it enables the integrated manufacturing of the second conductive sheet and the end cap, simplifying the production process and ensuring the reliability of the connection.

[0014] Furthermore, the drive head assembly includes a photosensitive drum drive head and a photosensitive drum drive gear. The photosensitive drum drive head is rotatably fitted outside the circular opening, and the photosensitive drum drive gear is rotatably fitted inside the circular opening. The photosensitive drum drive head cooperates with the drive structure inside the printer, and the photosensitive drum drive gear meshes with a gear set located in the waste toner section gear end cover and the toner section gear end cover of the toner hopper.

[0015] Based on the above, the beneficial effects of the photosensitive drum drive head are that it enables direct connection and power reception with the internal drive structure of the printer, ensuring that the photosensitive drum receives external rotational driving force; the beneficial effects of the photosensitive drum drive gear are that it enables the transmission of power to the gear set inside the waste toner hopper and the toner hopper gear end cover, ensuring the synchronous operation of the internal transmission system of the toner cartridge.

[0016] Furthermore, the powder hopper and the waste powder hopper are detachably connected on both sides by pins.

[0017] Furthermore, the charging roller bracket adopts a 435 universal charging roller bracket.

[0018] Furthermore, the cleaning scraper is a 2612 universal cleaning scraper.

[0019] To more clearly illustrate the above-mentioned features of this utility model and the objectives it aims to achieve, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 : This is a schematic diagram of the gear end side of the powder hopper and waste powder hopper of this utility model; Figure 2 : This is a schematic diagram of the conductive end side of the powder hopper and waste powder hopper of this utility model; Figure 3 : This is a schematic diagram of the internal structure of the waste powder silo of this utility model.

[0021] Explanation of reference numerals: 1-Powder hopper, 11-Powder hopper section conductive end cover, 111-Second conductive sheet, 2-Waste powder hopper, 21-Waste powder hopper section gear end cover, 211-First maintenance window, 22-Waste powder hopper section conductive end cover, 221-Second maintenance window, 222-First conductive sheet, 23-Spring support platform, 3-Photosensitive drum, 31-Photosensitive drum drive head, 32-Photosensitive drum drive gear, 4-Charging roller assembly, 41-Charging roller, 42-Charging roller bracket, 43-Spring, 5-Cleaning scraper, 6-Sheet section, 61-Round opening, 7-Pin. Detailed Implementation

[0022] like Figures 1-3 As shown, a novel D203 toner cartridge includes a toner hopper 1 and a waste toner hopper 2 detachably connected to the toner hopper 1. The waste toner hopper 2 has a waste toner hopper section gear end cap 21 and a waste toner hopper section conductive end cap 22 at its two ends. The waste toner hopper section gear end cap 21 and the waste toner hopper section conductive end cap 22 are respectively provided with a first maintenance window 211 and a second maintenance window 221. The waste toner hopper 2 contains a photosensitive drum 3, a charging roller assembly 4 located on the same side as the photosensitive drum 3, and a cleaning scraper 5. The charging roller assembly 4 includes a charging roller 41, two charging roller supports 42 that clamp both ends of the charging roller 41, and a spring 43 acting between the charging roller supports 42 and the inner surface of the waste toner hopper 2. The first maintenance window 211 and the second maintenance window 221 expose the assembly positions of the charging roller supports 42 and the spring 43, and the first maintenance window 211 and the second maintenance window 221 are axially aligned with the assembly positions of the charging roller supports 42 and the spring 43.

[0023] The photosensitive drum 3 is integrally integrated with a drive head assembly on one side of the waste powder bin section gear end cover 21. A thin sheet portion 6 is extended from the end face of the waste powder bin section gear end cover 21 on one side of the photosensitive drum 3. A circular opening 61 is provided on the thin sheet portion 6, and the drive head assembly is confined within the circular opening 61.

[0024] Spring support platforms 23 are provided on the surface of the waste powder bin 2 corresponding to the two sides of the cleaning scraper 5, and the spring 43 is connected between the charging roller bracket 42 and the spring support platform 23.

[0025] The waste toner hopper section conductive end cap 22 is provided with a first conductive sheet 222 arranged laterally to avoid the second maintenance window 221. The first conductive sheet 222 is electrically connected to the charging roller 41. The first conductive sheet 222 is a metal conductive sheet. The toner hopper section conductive end cap 11 of the toner hopper 1 is provided with three second conductive sheets 111. The three second conductive sheets 111 are electrically connected to the printing components in the toner hopper 1. The second conductive sheets 111 are injection molded onto the toner hopper section conductive end cap 11 using conductive composite material.

[0026] The drive head assembly includes a photosensitive drum drive head 31 and a photosensitive drum drive gear 32. The photosensitive drum drive head 31 is rotatably fitted outside the circular opening 61, and the photosensitive drum drive gear 32 is rotatably fitted inside the circular opening 61. The photosensitive drum drive head 31 cooperates with the drive structure inside the printer, and the photosensitive drum drive gear 32 meshes with the gear set located in the waste toner section gear end cover 21 and the toner section gear end cover 12 of the toner hopper 1.

[0027] The powder hopper 1 and the waste powder hopper 2 are detachably connected on both sides by pins 7.

[0028] The charging roller bracket 42 adopts the 435 universal charging roller bracket.

[0029] The cleaning scraper 5 is a 2612 universal cleaning scraper.

[0030] In summary, the specific embodiments of this utility model are as follows: The core innovation of this utility model lies in the redesign of the end cap structure at both ends of the waste toner compartment 2, and the optimization of the layout and connection method of the internal key components. This solves the core problems of difficult maintenance and poor compatibility of general components in the existing closed structure. Specifically, the end caps of traditional toner cartridges are closed or have only a very small observation port, making it impossible to perform any operation. This results in the need for complete disassembly when maintaining internal components such as the charging roller assembly 4, which is a complicated process and can easily damage components. This utility model creates an operation channel that directly reaches the key maintenance points by opening a first maintenance window 211 on the gear end cap 21 of the waste toner compartment section and a corresponding second maintenance window 221 on the conductive end cap 22 of the waste toner compartment section. It also ensures that these two windows are axially aligned with the assembly positions of the charging roller bracket 42 and the spring 43. This design allows users or maintenance personnel to adjust the pressure of the charging roller bracket 42, check the fatigue condition of the spring 43, or even replace it from the outside without disassembling the pin 7 to separate the toner compartment 1 and the waste toner compartment 2. This greatly simplifies the maintenance process, reduces the operating threshold, and lowers the risk of damage caused by disassembly. When the toner cartridge is installed in the printer, the photosensitive drum drive head 31 engages with the drive structure inside the printer. When the printer is working, the drive structure drives the photosensitive drum drive head 31 to rotate, which in turn drives the integrated photosensitive drum 3 to rotate. At the same time, the photosensitive drum drive gear 32, which is coaxial with the photosensitive drum drive head 31, rotates accordingly. The photosensitive drum drive gear 32 meshes with the gear set located in the waste toner section gear end cover 21 and the toner section gear end cover 12, transmitting power to the components inside the toner cartridge that need to be driven. When the charging process begins, the printer supplies power to the charging roller 41 through the first conductive sheet 222 on the conductive end cover 22 of the waste toner compartment. Under the clamping of the charging roller bracket 42, the charging roller 41 relies on the elastic force between the charging roller bracket 42 and the spring support platform 23 in the waste toner compartment 2 by the spring 43 to ensure a uniform and stable contact pressure with the surface of the photosensitive drum 3, thereby uniformly charging the surface of the rotating photosensitive drum 3. Subsequently, the surface of the charged photosensitive drum 3 is exposed to the laser beam to form an electrostatic latent image. The toner in the toner cartridge 1 is transported to the vicinity of the photosensitive drum 3 under the drive of the gear set, and the electrostatic latent image is developed into a toner image. The three second conductive plates 111 on the conductive end cover 11 of the toner cartridge section ensure that the electrical connection required by various printing components in the toner cartridge 1 is established, and ensure the normal progress of the development process. Furthermore, another significant advantage of this invention lies in its successful adaptation to industry-standard components, which effectively reduces manufacturing costs and supply chain complexity. Traditional dedicated toner cartridges often require customized components due to their unique structural design, resulting in high production costs and a shortage of after-sales replacement parts. This invention, through precise structural design, allows its charging roller bracket 42 to adopt the industry-standard 435 model, and the cleaning blade 5 to adopt the 2612 universal cleaning blade. In particular, the installation method of the charging roller assembly 4 involves two charging roller brackets 42 clamping the two ends of the charging roller 41 respectively, and using springs 43 to apply its pressure to a specially set spring support platform 23 inside the waste toner hopper 2. This structure provides a stable and reliable installation base for the universal bracket, ensuring uniform pressure and good electrical contact. This design avoids large-scale modifications to the overall structure to adapt to universal components, truly achieving plug-and-play compatibility while ensuring that print quality is not affected. After the transfer, the residual toner on the surface of the photosensitive drum 3 is scraped off by the cleaning scraper 5 and falls into the waste toner hopper 2 for collection. During the entire printing process, if maintenance of the charging roller assembly 4 is required, the assembly position of the charging roller bracket 42 and the spring 43 can be directly observed and operated through the first maintenance window 211 on the gear end cover 21 of the waste toner hopper section and the second maintenance window 221 on the conductive end cover 22 of the waste toner hopper section. There is no need to disassemble the entire toner cartridge. The toner hopper 1 and the waste toner hopper 2 are connected by pins 7 on both sides. When complete separation is required, the pins 7 can be pulled out to achieve the detachable separation of the toner hopper 1 and the waste toner hopper 2.

[0031] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A novel D203 toner cartridge, comprising a toner hopper (1) and a waste toner hopper (2) detachably connected to the toner hopper (1), wherein the waste toner hopper (2) is provided with a waste toner hopper section gear end cap (21) and a waste toner hopper section conductive end cap (22) at both ends, characterized in that: The waste powder hopper section gear end cover (21) and the waste powder hopper section conductive end cover (22) are respectively provided with a first maintenance window (211) and a second maintenance window (221). The waste powder hopper (2) is provided with a photosensitive drum (3) and a charging roller assembly (4) and a cleaning scraper (5) located on the same side of the photosensitive drum (3). The charging roller assembly (4) includes a charging roller (41), two charging roller supports (42) that respectively hold the two ends of the charging roller (41), and a spring (43) acting between the charging roller support (42) and the inner surface of the waste powder hopper (2). The first maintenance window (211) and the second maintenance window (221) respectively expose the assembly position of the charging roller support (42) and the spring (43), and the first maintenance window (211) and the second maintenance window (221) are axially aligned with the assembly position of the charging roller support (42) and the spring (43).

2. The novel D203 toner cartridge according to claim 1, characterized in that: The photosensitive drum (3) is integrally integrated with a drive head assembly on one side of the waste powder bin section gear end cover (21). A thin sheet (6) is extended from the end face of the waste powder bin section gear end cover (21) on one side of the photosensitive drum (3). A round opening (61) is provided on the thin sheet (6), and the drive head assembly is limited to the round opening (61).

3. The novel D203 toner cartridge according to claim 1, characterized in that: The surface inside the waste powder bin (2) is provided with spring support platforms (23) corresponding to both sides of the cleaning scraper (5), and the spring (43) is connected between the charging roller bracket (42) and the spring support platform (23).

4. The novel D203 toner cartridge according to claim 1, characterized in that: The waste powder hopper section conductive end cap (22) is provided with a first conductive sheet (222) arranged laterally to avoid the second maintenance window (221). The first conductive sheet (222) is electrically connected to the charging roller (41). The first conductive sheet (222) is a metal conductive sheet. The powder hopper section conductive end cap (11) of the powder hopper (1) is provided with three second conductive sheets (111). The three second conductive sheets (111) are electrically connected to the printing components in the powder hopper (1). The second conductive sheets (111) are injection molded onto the powder hopper section conductive end cap (11) by conductive composite material.

5. The novel D203 toner cartridge according to claim 2, characterized in that: The drive head assembly includes a photosensitive drum drive head (31) and a photosensitive drum drive gear (32). The photosensitive drum drive head (31) is rotatably fitted outside the round opening (61), and the photosensitive drum drive gear (32) is rotatably fitted inside the round opening (61). The photosensitive drum drive head (31) cooperates with the drive structure inside the printer, and the photosensitive drum drive gear (32) meshes with the gear set located in the waste toner section gear end cover (21) and the toner section gear end cover (12) of the toner hopper (1).

6. The novel D203 toner cartridge according to claim 1, characterized in that: The powder hopper (1) and the waste powder hopper (2) are detachably connected on both sides by pins (7).

7. The novel D203 toner cartridge according to claim 1, characterized in that: The charging roller bracket (42) adopts the 435 universal charging roller bracket.

8. The novel D203 toner cartridge according to claim 1, characterized in that: The cleaning scraper (5) is a 2612 universal cleaning scraper.

Images