A selenium drum photosensitive structure and a selenium drum

Abstract

The application discloses a selenium drum photosensitive structure and a selenium drum, and belongs to the technical field of the selenium drum. The selenium drum roller shaft is provided with a light guide layer in the form of a ring on the outer wall of the selenium drum roller shaft. The opposite inner sides of an auxiliary plate are respectively connected with selenium drum powder cleaning assemblies which are vertically and elastically movable. The top ends of the selenium drum powder cleaning assemblies are in elastic contact with the outer surface of the light guide layer. The selenium drum powder cleaning assemblies which are vertically and elastically movable are arranged below the light guide layer outside the selenium drum roller shaft. When the selenium drum powder cleaning assemblies cooperate with the selenium drum roller shaft to rotate and operate, the top ends of the selenium drum powder cleaning assemblies are in contact with the outer wall of the light guide layer. The selenium drum powder cleaning assemblies are used for cleaning the selenium drum powder which is left on the outer wall of the light guide layer and cooperates with the conductive roller to print. In the rotating process of the light guide layer, the selenium drum powder cleaning assemblies are moved downward after encountering an obstacle resistance under the action force generated by rotation, and are elastically moved upward to the light guide layer again after moving downward, so that the purpose of vibrating and cleaning the selenium drum powder on the light guide layer is achieved.

Description

Technical Field

[0001] This invention belongs to the field of toner cartridge technology, specifically relating to a toner cartridge photosensitive structure and a toner cartridge. Background Technology

[0002] A toner cartridge, also known as a photosensitive drum, is generally composed of a base material made of aluminum and a photosensitive material coated on the base material. The toner cartridge not only determines the print quality but also the cost to the user. In laser printers, over 70% of the imaging components are concentrated in the toner cartridge; therefore, print quality is largely determined by the photosensitive structure on the toner cartridge.

[0003] Traditional toner cartridges primarily use light-guiding materials for their photosensitive structure. When the photosensitive semiconductor on this material is exposed to light, it interacts with a conductive roller to generate conductivity, altering the carrier mobility of the object to varying degrees. This mobility is equal to the carrier density multiplied by the mobility; an increase in mobility leads to increased conductivity. The conductivity of the light-guiding material is directly proportional to its sensitivity to light. However, when printing with the conductive roller, the toner cartridge rotates, picking up toner powder from the light-guiding material. Residual toner powder on the surface of the light-guiding material reduces its conductivity. This residual toner powder further reduces the conductivity of the light-guiding material, causing clumping, unclear printing, and print gaps.

[0004] Therefore, the present invention provides a toner cartridge photosensitive structure, and a toner cartridge for printing using the toner cartridge photosensitive structure. Summary of the Invention

[0005] The purpose of this invention is to provide a photosensitive structure for a toner cartridge and a toner cartridge to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a photosensitive structure for a toner cartridge, comprising:

[0007] The drum roller shaft has an annular light guide layer on its outer wall, and connecting plates that are fitted to the drum roller shaft are respectively connected to the left and right ends of the drum roller shaft.

[0008] The conductive roller has its two ends rotatably supported by a shaft and an auxiliary plate below the connecting plate;

[0009] The auxiliary plate is connected to toner cleaning components that are vertically oriented and elastically movable on its inner side. The top of the toner cleaning components makes elastic contact with the outer surface of the light guide layer.

[0010] Furthermore, a horizontal clamping plate is provided on the middle of the outer wall of the two connecting plates to cooperate with the horizontal assembly and fixation of the connecting plates, and the upper surface and bottom surface of the horizontal clamping plate are respectively provided with spring buckles.

[0011] Furthermore, the inner side of the connecting plate is provided with an annular inner limiting plate, and the end of the inner limiting plate rotates by contacting and engaging with the left and right ends of the drum roller shaft via ball bearings.

[0012] Furthermore, the toner cartridge cleaning assembly includes a vertical slider disposed inside the auxiliary plate, a horizontal support plate disposed inside the vertical slider, and friction protrusions disposed on the top surface of the horizontal support plate. The vertical slider limits the horizontal support plate to move up and down below the conductive layer on the auxiliary plate, and the top surface of the friction protrusions on the upper surface of the horizontal support plate contacts the surface of the conductive layer to clean the toner cartridge from the surface of the conductive layer.

[0013] The vertical slider is located in the vertical groove inside the auxiliary plate. The vertical groove is used to confine the vertical slider inside the auxiliary plate, thereby maintaining the stability of the toner cartridge cleaning assembly's vertical movement inside the auxiliary plate.

[0014] Furthermore, the upper and bottom surfaces of the vertical slider are respectively provided with a reset spring and a support spring. The reset spring exerts a pulling force on the vertical slider at the position of the light guide layer, and the support spring, in conjunction with the reset spring, exerts a supporting force on the vertical slider to guide the movement of the light guide layer, thus maintaining the horizontal support plate on the vertical slider to support the friction protrusions and guide the light guide layer.

[0015] Furthermore, the center of the friction protrusion is rotatably connected to the top of the horizontal support plate, and the outer wall of the friction protrusion is evenly distributed with arc-shaped protrusions. The arc-shaped protrusions are used to cooperate with the friction protrusion to clean the residual toner on the surface of the light guide layer, while creating a drop between the friction protrusion and the light guide layer. This causes the friction protrusion to bounce up and down through the drop formed by the arc-shaped protrusions, thereby achieving the purpose of shaking off the toner on the surface of the light guide layer through the force of the bounce.

[0016] A toner cartridge comprising the aforementioned toner cartridge photosensitive structure;

[0017] The toner cartridge also includes the toner cartridge body;

[0018] The photosensitive structure of the toner cartridge is horizontally connected to the inside of the toner cartridge body via a horizontal clamping plate on the outside of the connecting plate.

[0019] Furthermore, the left and right ends of the drum body are respectively provided with power-connecting terminals that cooperate with the conductive roller to connect to the power supply after the drum photosensitive structure is assembled with the drum body, and to cooperate with the light guide layer on the drum roller shaft for printing.

[0020] The present invention has the following technical effects and advantages:

[0021] The toner cartridge photosensitive structure and toner cartridge have a vertically spring-loaded toner cleaning component installed below the light guide layer outside the toner cartridge roller shaft. When the toner cartridge cleaning component rotates in conjunction with the toner cartridge roller shaft, the top of the toner cleaning component contacts the outer wall of the light guide layer to clean the toner cartridge residue left on the outer wall of the light guide layer after printing with the conductive roller. During the rotation of the light guide layer, the toner cartridge cleaning component moves downward after encountering obstacles and resistance, and then springs upward again to the light guide layer, thereby achieving the purpose of vibrating the light guide layer to clean the toner cartridge.

[0022] The photosensitive structure of the toner cartridge and the toner cartridge itself have a horizontal clamping plate on the outer side of the connecting plate on the photosensitive structure. This allows the horizontal clamping plate on the outer side of the connecting plate to be horizontally engaged with the slots on both sides of the toner cartridge roller shaft area on the inner side of the toner cartridge body. The photosensitive structure is then quickly and stably fixed to the toner cartridge body by spring-loaded buckles on the upper and lower surfaces of the horizontal clamping plate and the buckles in the slots. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the photosensitive structure of the selenium drum of the present invention;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the main cross-section;

[0026] Figure 4 This is a partially enlarged structural diagram of the toner cartridge cleaning component of the present invention.

[0027] In the diagram: 1. Toner cartridge roller shaft; 2. Light guide layer; 3. Connecting plate; 4. Shaft; 5. Conductive roller; 6. Auxiliary plate; 7. Toner cartridge cleaning assembly; 8. Horizontal clamping plate; 9. Spring clip; 10. Inner limiting plate; 11. Ball bearing; 12. Vertical slider; 13. Horizontal support plate; 14. Friction protrusion; 15. Return spring; 16. Support spring; 17. Arc-shaped protrusion; 18. Toner cartridge body; 19. Power connector. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This invention provides, for example Figure 1-4The toner cartridge photosensitive structure shown includes a toner cartridge roller shaft 1. The outer wall of the toner cartridge roller shaft 1 is provided with an annular light guide layer 2. The left and right ends of the toner cartridge roller shaft 1 are respectively connected to connecting plates 3 that are assembled with the toner cartridge roller shaft 1.

[0030] The conductive roller 5 has two ends that are rotatably supported by the shaft 4 and the auxiliary plate 6 below the connecting plate 3;

[0031] A toner cleaning assembly 7 is connected to the inner side of the auxiliary plate 6 in a vertical and elastic manner. The top of the toner cleaning assembly 7 is in elastic contact with the outer surface of the light guide layer 2. The toner cleaning assembly 7 includes a vertical slider 12 disposed on the inner side of the auxiliary plate 6, a horizontal support plate 13 disposed on the inner side of the vertical slider 12, and a friction protrusion 14 disposed on the top surface of the horizontal support plate 13. The horizontal support plate 13 is located below the conductive layer and moves up and down by being limited on the auxiliary plate 6 by the vertical slider 12. The top surface of the friction protrusion 14 on the upper surface of the horizontal support plate 13 contacts the surface of the conductive layer to clean the toner on the surface of the conductive layer.

[0032] The vertical slider 12 is disposed in the vertical groove inside the auxiliary plate 6. The vertical groove is used to limit the vertical slider 12 inside the auxiliary plate 6, so as to keep the toner cartridge cleaning assembly 7 stable in vertical movement inside the auxiliary plate 6.

[0033] The upper and bottom surfaces of the vertical slider 12 are respectively provided with a return spring 15 and a support spring 16. The return spring 15 exerts a pulling force on the vertical slider 12 at the position of the light guide layer 2. The support spring 16 cooperates with the return spring 15 to exert a supporting force on the vertical slider 12 to guide the movement of the light guide layer 2, and maintains the horizontal support plate 13 on the vertical slider 12 to support the friction protrusion 14 to guide the light guide layer 2.

[0034] The center of the friction protrusion 14 is rotatably connected to the top of the horizontal support plate 13, and the outer wall of the friction protrusion 14 is evenly distributed with arc-shaped protrusions 17. The arc-shaped protrusions 17 are used to cooperate with the friction protrusion 14 to clean the residual toner on the surface of the light guide layer 2, while creating a drop between the friction protrusion 14 and the light guide layer 2, so that the friction protrusion 14 bounces up and down through the drop formed by the arc-shaped protrusions 17, thereby achieving the purpose of shaking off the toner on the surface of the light guide layer 2 through the bounce.

[0035] A horizontal clamping plate 8 is provided on the middle of the outer wall of the two connecting plates 3 to be horizontally assembled and fixed with the connecting plates 3. The upper surface and the bottom surface of the horizontal clamping plate 8 are respectively provided with spring buckles 9. An annular inner limiting plate 10 is provided on the inner side of the connecting plate 3. The end of the inner limiting plate 10 is in contact with the left and right ends of the drum roller shaft 1 through the ball bearings 11 and rotates. The ball bearings 11 on the inner limiting plate 10 cooperate with the drum roller shaft 1 to rotate during the clamping process, which further improves the rotational stability of the drum roller shaft 1.

[0036] A toner cartridge comprising the aforementioned toner cartridge photosensitive structure;

[0037] It also includes the toner cartridge body 18;

[0038] The photosensitive structure of the drum unit is horizontally connected to the inside of the drum body 18 via a horizontal clamping plate 8 on the outside of the connecting plate 3. A horizontal clamping plate 8 is provided on the outside of the connecting plate 3 on the photosensitive structure of the drum unit, so that the horizontal clamping plate 8 on the outside of the connecting plate 3 is horizontally connected to the grooves on both sides of the drum roller shaft 1 area on the inside of the drum body 18. The spring buckles 9 on the upper and bottom surfaces of the horizontal clamping plate 8 are fastened to the buckles in the grooves, so as to quickly and stably fix the photosensitive structure of the drum unit onto the drum body 18.

[0039] Furthermore, the light guide layer 2 on the outer wall of the drum roller shaft 1 can be multi-layered as needed. When the wear of the surface light guide layer 2 affects the printing effect, the surface light guide layer 2 can be peeled off and printed through the inner light guide layer 2 in conjunction with the conductive roller 5, thereby avoiding the problem of reducing the working efficiency of the drum printer by replacing the drum roller shaft 1 multiple times.

[0040] The left and right ends of the drum body 18 are respectively provided with power receiving terminals 19 that cooperate with the conductive roller 5 to connect to the power source. The power receiving terminals 19 are used to connect to the power source in cooperation with the conductive roller 5 after the drum photosensitive structure is assembled with the drum body 18, and to cooperate with the light guide layer 2 on the drum roller shaft 1 for printing.

[0041] The photosensitive structure and drum of this toner cartridge include a vertically spring-loaded toner cleaning component 7 located below the light guide layer 2 outside the drum roller shaft 1. When the drum roller shaft 1 rotates, the top of the toner cleaning component 7 contacts the outer wall of the light guide layer 2, cleaning the toner residue left on the outer wall of the light guide layer 2 after printing with the conductive roller 5. During the rotation of the light guide layer 2, the toner cleaning component 7 moves downwards after encountering resistance due to the force generated by the rotation, and then springs upwards again to the light guide layer 2, achieving the purpose of vibrating and cleaning the toner residue from the light guide layer 2.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A photosensitive structure for a selenium drum, characterized in that, include: A drum roller shaft (1) is provided with an annular light guide layer (2) on its outer wall. The left and right ends of the drum roller shaft (1) are respectively connected to connecting plates (3) that are fitted to the drum roller shaft (1). A horizontal clamping plate (8) is provided on the middle of the outer wall of the two connecting plates (3) to fit the horizontally fitted and fixed connecting plates (3). The upper and bottom surfaces of the horizontal clamping plate (8) are respectively provided with spring buckles (9). An annular inner limiting plate (10) is provided on the inner side of the connecting plate (3). The end of the inner limiting plate (10) is rotated by contacting the left and right ends of the drum roller shaft (1) through a ball bearing (11). The conductive roller (5) is rotatably supported by the shaft (4) and the auxiliary plate (6) below the connecting plate (3); The auxiliary plate (6) is connected to the inner side of the auxiliary plate (6) respectively. The toner cleaning component (7) is vertical and elastically movable. The top of the toner cleaning component (7) is in elastic contact with the outer surface of the light guide layer (2). The toner cleaning component (7) includes a vertical slider (12) disposed inside the auxiliary plate (6), a horizontal support plate (13) disposed inside the vertical slider (12), and a friction protrusion (14) disposed on the top surface of the horizontal support plate (13). The vertical slider (12) is disposed in the vertical groove inside the auxiliary plate (6).

2. The photosensitive structure of a selenium drum according to claim 1, characterized in that: The upper and lower surfaces of the vertical slider (12) are respectively provided with a return spring (15) and a support spring (16).

3. The photosensitive structure of a selenium drum according to claim 1, characterized in that: The center of the friction protrusion (14) is rotatably connected to the top of the horizontal support plate (13), and the outer wall of the friction protrusion (14) is evenly distributed with arc-shaped protrusions (17).

4. A toner cartridge, characterized in that: The toner cartridge includes the toner cartridge photosensitive structure as described in any one of claims 1-3; it also includes a toner cartridge body (18); the toner cartridge photosensitive structure is horizontally connected to the inside of the toner cartridge body (18) via a horizontal clamping plate (8) on the outside of the connecting plate (3); the left and right ends of the toner cartridge body (18) are respectively provided with power receiving terminals (19) that cooperate with the conductive roller (5) for power connection.

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