A process cartridge

Abstract

This invention discloses a processing cartridge, comprising: a housing having a first side and a second side disposed separately from the first side in a first direction; a photosensitive drum rotatable about its photosensitive drum axis, one end of the photosensitive drum being rotatably supported on the second side of the housing; a developing roller rotatable about its developing roller axis; a developing frame rotatably supporting the developing roller and connected to the housing; a drum flange located on the first side of the housing and connected to the other end of the photosensitive drum; a first member connected to the first side of the housing and rotatably supporting the drum flange; and a second member connected to the first side of the housing, the second member including a first protrusion protruding in a direction away from the second side of the housing in a first direction. The second member and the first member are separately disposed, which can reduce the risk of interference during the installation of the processing cartridge and help improve the installation efficiency of the processing cartridge.

Description

Technical Field

[0001] This invention relates to the field of electrophotographic imaging technology, and more particularly to a processing box. Background Technology

[0002] The processing cartridge is a box-shaped structure that can be installed inside an imaging device to carry images and transfer them onto printing material. The processing cartridge typically includes a bearing for the photosensitive drum to support it. To reduce wobbling and improve image quality, the processing cartridge often has protrusions that receive pressure from the imaging device. When the processing cartridge is installed in the imaging device, the device presses down on these protrusions to restrict its position and reduce wobbling and shifting during the imaging process.

[0003] In related technologies, the protrusion on the processing box is usually integrally formed with the photosensitive drum bearing. When installing this component onto the processing box, it is necessary to simultaneously ensure that the part where the photosensitive drum bearing is located is compatible with the photosensitive drum in the entire circumferential direction of the photosensitive drum, and that the part where the protrusion is located is compatible with its installation position. Interference is likely to occur during installation, resulting in low installation efficiency. Summary of the Invention

[0004] To address the above problems, this invention provides a new processing box, mainly achieved through the following technical solutions:

[0005] A processing box, comprising:

[0006] The housing has a first side and a second side disposed separately from the first side in a first direction;

[0007] A photosensitive drum, rotatable about a photosensitive drum axis extending along the first direction, one end of the photosensitive drum being rotatably supported on the second side of the housing;

[0008] The developing roller can rotate about its developing roller axis;

[0009] The developing frame rotatably supports the developing roller and is connected to the housing.

[0010] The processing box also includes:

[0011] The drum flange is located on the first side of the housing and is connected to the other end of the photosensitive drum;

[0012] The first component is connected to the first side of the housing and rotatably supports the drum flange;

[0013] The second component is connected to the first side of the housing. The second component includes a first protrusion protruding in a first direction away from the second side of the housing. The second component is separately disposed from the first component.

[0014] The processing box provided in this application has a first component supporting the drum flange and a second component for receiving external pressure separately. During the installation of the processing box, the first component and the second component can be installed separately, so that the first component and the second component only need to be adapted to their respective installation positions. This can reduce the risk of interference during the installation of the processing box, thereby reducing installation errors or debugging time caused by mutual interference of components during the installation process, and helping to improve the installation efficiency of the processing box.

[0015] Optionally, the first component and the second component are spaced apart in the first direction.

[0016] By adopting the above technical solution, the impact vibration generated when the second component is forced by the pressure applied by the imaging device can be reduced on the first component.

[0017] Optionally, at least one portion of the projection of the second component along the first direction coincides with the first component.

[0018] By adopting the above technical solution, at least one portion of the projection of the second component in the first direction coincides with the first component, which makes the structure of the processing box more compact and helps to achieve miniaturization of the processing box.

[0019] Optionally, at least a portion of the projection of the first protrusion along the first direction coincides with the photosensitive drum.

[0020] By adopting the above technical solution, the position of the first protrusion on the processing box can be restricted, ensuring that the first protrusion can receive the pressure of the imaging device after the processing box is installed inside the imaging device, which helps to improve the stability of the processing box.

[0021] Optionally, the first component includes a first surface facing the outside of the processing box, the first surface being non-perpendicular to the axis of the photosensitive drum.

[0022] By adopting the above technical solutions, the structural forms of the first surface can be enriched, and vibrations during the imaging process can be dispersed or absorbed more effectively, which helps to improve the stability and reliability of the processing box.

[0023] Optionally, the first component includes a first opening leading to the drum flange, and the photosensitive drum axis is located within the first opening;

[0024] The first surface and the first protrusion form an open space, which is connected to the first opening. In a second direction perpendicular to the axis of the photosensitive drum, the open space extends to the axis of the photosensitive drum.

[0025] By adopting the above technical solution, the open space formed by the first surface and the first protrusion can serve as a clearance space for the driving force output component of the imaging device. This can prevent interference between the driving force output component of the imaging device and the components on the processing box when the processing box is installed inside the imaging device, thus helping to improve the reliability of the processing box.

[0026] Optionally, in the first direction, at least a portion of the first protrusion is at a distance greater than the distance between the first surface and the second side of the housing.

[0027] By adopting the above technical solution, the first protrusion protrudes further outward than the first surface in the first direction, so that when the first protrusion receives the pressure of the imaging device, the imaging device will not interfere with the first surface of the first component, which helps to ensure the stability and reliability of the pressure received by the first protrusion from the imaging device.

[0028] Optionally, in a third direction perpendicular to the axis of the photosensitive drum, the distance between the axis of the photosensitive drum and at least a portion of the first protrusion is less than the radius of the photosensitive drum.

[0029] By adopting the above technical solution, the radius of the photosensitive drum is close to the center of gravity of the processing box. By limiting the position of the first protrusion on the processing box to within the radius of the photosensitive drum, the processing box can avoid large shaking after being pressed by the imaging device, which helps to improve the stability of the processing box.

[0030] Optionally, the first component includes a second protrusion projecting in a direction away from the housing in a first direction, and in a fourth direction perpendicular to the axis of the photosensitive drum, the distance between the axis of the photosensitive drum and the second protrusion is greater than or equal to the radius of the photosensitive drum.

[0031] By adopting the above technical solution, the second protrusion is a structure on the first component used to connect the housing. By placing the second protrusion outside the radius of the photosensitive drum, the mutual influence between the second protrusion and the photosensitive drum can be reduced, which helps to improve the stability of the processing box.

[0032] Optionally, the projection of the first protrusion along the first direction does not coincide with the second protrusion.

[0033] By adopting the above technical solution, the function of receiving pressure from the first protrusion and the installation and positioning function of the second protrusion can be separated in the first direction, and the mutual influence between the first protrusion and the second protrusion can be reduced, which helps to improve the reliability of the processing box.

[0034] Optionally, the processing box also includes a support member, the drum flange including a hollow portion and an inner surface facing the axis of the photosensitive drum, the support member being located in the hollow portion of the drum flange and supporting the drum flange;

[0035] The first component also includes a third protrusion, which is inserted into the support member and does not contact the inner surface of the drum flange.

[0036] By adopting the above technical solution, the support member can cooperate with the housing to support both ends of the photosensitive drum in the first direction. The third protrusion on the first member can restrict the position of the support member relative to the drum flange, so that the position of the support member is relatively fixed after the processing box is assembled. In addition, the third protrusion does not contact the inner surface of the drum flange, which can avoid friction between the third protrusion and the drum flange and help reduce wear between the two.

[0037] Optionally, this application also provides a processing box, including:

[0038] A housing having a first side and a second side disposed apart from the first side in a first direction;

[0039] A photosensitive drum is rotatable about a photosensitive drum axis extending along the first direction, and one end of the photosensitive drum is rotatably supported on the second side of the housing;

[0040] A developing roller, which is rotatable about its developing roller axis;

[0041] A developing frame that rotatably supports the developing roller and is connected to the housing;

[0042] The processing box is characterized in that it further includes:

[0043] A drum flange, which is located on the first side of the housing and connected to the other end of the photosensitive drum;

[0044] A bearing member is located on the first side of the housing in the first direction, the bearing member including a first surface facing the outside of the processing box, the first surface being non-perpendicular to the axis of the photosensitive drum.

[0045] By adopting the above technical solutions, the structural forms of the first surface can be enriched, and interference during the boxing process can be reduced more effectively. Attached Figure Description

[0046] Figure 1 This is an assembly diagram of the processing box provided in Embodiment 1 of the present invention;

[0047] Figure 2 This is an exploded view of the processing box provided in Embodiment 1 of the present invention;

[0048] Figure 3 This is a schematic diagram of the structure of the drum unit and the developing unit in the processing box provided in Embodiment 1 of the present invention;

[0049] Figure 4 This is a schematic diagram of the structure of the second component provided in Embodiment 1 of the present invention;

[0050] Figure 5 This is a schematic diagram of the structure of the first side of the processing box provided in Embodiment 1 of the present invention;

[0051] Figure 6 This is a schematic diagram of the structure of the first side of the processing box provided in Embodiment 1 of the present invention;

[0052] Figure 7 This is a schematic diagram of the processing box provided in Embodiment 1 of the present invention;

[0053] Figure 8 This is a schematic diagram of the structure of the first component provided in Embodiment 1 of the present invention;

[0054] Figure 9 This is a schematic diagram of the structure of the first component provided in Embodiment 1 of the present invention;

[0055] Figure 10 This is a schematic diagram of the first side of the processing box after removing the second component, as provided in Embodiment 1 of the present invention;

[0056] Figure 11 This is a schematic diagram of the structure of the first component provided in Embodiment 2 of the present invention;

[0057] Figure 12 This is a schematic diagram of the structure of the first component provided in Embodiment 3 of the present invention;

[0058] Figure 13 This is a schematic diagram of the structure of the first component provided in Embodiment 3 of the present invention;

[0059] Figure 14 This is a schematic diagram of the structure of the second component provided in Embodiment 4 of the present invention;

[0060] Figure 15 This is a schematic diagram of the structure of the first component provided in Embodiment 4 of the present invention;

[0061] Figure 16 This is a schematic diagram of the processing box provided in Embodiment 5 of the present invention;

[0062] Figure 17 This is a schematic diagram of the structure of the first component provided in Embodiment 5 of the present invention;

[0063] Figure 18 This is a schematic diagram of the structure of the first component provided in Embodiment 5 of the present invention;

[0064] Figure 19 This is a schematic diagram showing the relative positions of the first protective cover and the photosensitive drum provided in Embodiment 6 of the present invention;

[0065] Figure 20 This is a schematic diagram of the driving force receiving component and the drum flange provided in Embodiment 7 of the present invention. Detailed Implementation

[0066] To make the objectives, technical solutions, and technical effects of the embodiments of the present invention clearer, the technical solutions of the processing box of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely preferred embodiments of the present invention, and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the protection scope of the present invention.

[0067] Example 1:

[0068] Please see Figures 1 to 3 This application provides a processing cartridge 100, which can be installed in an imaging device (not shown). The processing cartridge 100 includes a drum unit 101 and a developing unit 102, which are detachably connected by a connector 103 (e.g., a plug, pin, or latch). The drum unit 101 is used to carry electrical charge and form a latent image. The drum unit 101 includes a housing 10, a photosensitive drum 20, a drum flange 50, a first component 60, and a second component 70. The developing unit 102 is used to attach developer to the drum unit 101 to develop the latent image. The developing unit includes a developing roller 30, a developing frame 40, and other structures.

[0069] The housing 10 extends in a first direction, and in this first direction, the housing 10 has a first side 11 and a second side 12 that are separated from each other. The first side 11 is the driving side of the processing box 100, and the driving force receiving member 21 of the processing box 100 is located on the first side 11 of the housing 10. The driving force receiving member 21 can receive external driving force to drive the rotating components inside the processing box 100 to rotate. The second side 12 is the conductive side of the processing box 100, and the conductive member of the processing box 100 can receive external power on the second side 12 of the processing box 100 to energize the relevant components inside the processing box 100.

[0070] The developing frame 40 is detachably connected to the housing 10. The developing roller 30 extends along a first direction and is rotatably supported by the developing frame 40. Specifically, the developing roller 30 can rotate about the developing roller axis A2 with the support of the developing frame 40.

[0071] The photosensitive drum 20 extends from the first side 11 of the housing 10 to the second side 12 of the housing 10 and is rotatable about its photosensitive drum axis A1. Specifically, one end of the photosensitive drum 20 is rotatably supported by the second side 12 of the housing 10, and the other end of the photosensitive drum 20 is connected to the drum flange 50 located on the first side 11 of the housing 10.

[0072] The drum flange 50 is a structure in the processing cartridge 100 that transmits driving force from the photosensitive drum 20 to the developing roller 30. The drum flange 50 is fixedly connected to the end of the photosensitive drum 20 near the first side 11 of the housing 10. The drum flange 50 includes a hollow portion 51 and an inner surface 52 facing the photosensitive drum axis A1. The driving force receiving member 21 of the processing cartridge 100 passes through the hollow portion 51 of the drum flange 50. After the processing cartridge 100 receives the driving force of the imaging device through the driving force receiving member 21, the driving force receiving member 21 can drive the drum flange 50 to rotate. The drum flange 50 drives the photosensitive drum 20 to rotate around the photosensitive drum axis A1, and at the same time transmits the driving force to the developing roller 30, driving the developing roller 30 to rotate around its developing roller axis A2. Here, after the processing cartridge 100 is installed in the working position inside the imaging device, the rotation axis of the driving force receiving member is aligned with the photosensitive axis.

[0073] The first component 60 is a structure on the processing box 100 located on the first side 11 of the housing 10, used to support the drum flange 50. Specifically, the first component 60 includes a protrusion 601 that protrudes toward the second side 12 of the housing 10 in a first direction. The protrusion 601 is adapted to the inner surface 52 of the drum flange 50. During installation, the protrusion 601 of the first component 60 is inserted into the hollow portion 51 of the drum flange 50 and contacts the inner surface 52 of the drum flange 50. The drum flange 50 can drive the photosensitive drum 20 to rotate around the photosensitive drum axis A1 under the support of the first component 60.

[0074] The first component 60 is detachably connected to the first side 11 of the housing 10. As an example, the first component 60 may be provided with a snap-fit ​​structure, allowing for detachable connection to the first side 11 of the housing 10. As another example, the first component 60 may be provided with several threaded structures, allowing for detachable connection to the first side 11 of the housing 10 via threaded connections. Figure 1 and Figure 2 As shown, the first component 60 can also be provided with both a snap-fit ​​structure and a threaded structure to achieve stability and reliability of the connection between the first component 60 and the housing 10.

[0075] The first component 60 includes a first opening 62 leading to the drum flange 50 and a first surface 61 facing the outside of the processing box 100. In a first direction, the photosensitive drum axis A1 is located inside the first opening 62. The driving force receiving component 21 of the processing box 100 passes through the first opening 62 of the drum flange 50 and extends out of the first surface 61 of the first component 60 in the first direction toward the outside of the processing box 100.

[0076] like Figures 1 to 4As shown, the second component 70 is a structure on the processing box 100 located on the first side 11 of the housing 10, used to receive the pressure from the imaging device. The second component 70 is detachably connected to the first side 11 of the housing 10. As an example, a snap-fit ​​structure can be provided on the second component 70, allowing for detachable connection to the first side 11 of the housing 10. As another example, several threaded structures can be provided on the second component 70, allowing for detachable connection to the first side 11 of the housing 10 via threaded connections. Figure 1 and Figure 2 As shown, the second component 70 can also be provided with both a snap-fit ​​structure and a threaded structure to achieve stability and reliability of the connection between the second component 70 and the housing 10.

[0077] The first protrusion 71 is a structure on the second component 70 used to receive the pressure from the imaging device. The first protrusion 71 protrudes outward in a first direction along the second side 12 away from the housing 10. The number of first protrusions 71 can be one or more, and the embodiments of this application do not specifically limit the number of first protrusions 71. Preferably, the number of first protrusions 71 is one. In addition, the first protrusion 71 can be a regular polygonal structure or an irregular irregular shape structure. Here, the shape of the first protrusion 71 is not limited, as long as it can smoothly receive the pressure from the imaging device. Preferably, the side of the first protrusion 71 near the photosensitive drum axis A1 is generally arc-shaped, and the side of the first protrusion 71 away from the photosensitive drum axis A1 has a forced pushing surface for receiving the pressure from the imaging device. After the processing cartridge 100 is installed inside the imaging device, the pressure application member (not shown) in the imaging device contacts the first protrusion 71 of the second member 70 and applies pressure to the contact surface of the first protrusion 71, thereby applying a predetermined pressure to the processing cartridge 100 to reduce the impact of shaking of the processing cartridge 100 on the imaging quality during the imaging operation.

[0078] The second component 70 is separately disposed from the first component 60. When the first component 60 and the second component 70 are installed on the processing box 100, one end of the first component 60 can be installed in a predetermined position in the drum flange 50 to support the drum flange 50. Then, the other end of the first component 60 is connected to the first side 11 of the housing 10. After that, the second component 70 is installed on the first side 11 of the housing 10 with the first protrusion 71 facing outward, thereby reducing the risk of mutual interference between components during the assembly of the processing box 100.

[0079] Optionally, the first component 60 and / or the second component 70 may be integrally formed with the housing 10 of the drum unit 101. As an example, the first component 60 is integrally formed on the first side 11 of the housing 10, and the second component 70 is detachably connected to the first side 11 of the housing 10. As another example, the second component 70 is integrally formed on the first side 11 of the housing 10, and the first component 60 is detachably connected to the first side 11 of the housing 10. As yet another example, the first component 60 and the second component 70 are integrally formed on the first side 11 of the housing 10.

[0080] like Figure 1 , Figure 5 and Figure 6 As shown, the first surface 61 and the first protrusion 71 form an open space 90, which communicates with the first opening 62. In a second direction perpendicular to the photosensitive drum axis A1, the open space 90 extends to the photosensitive drum axis A1. One end of the driving force receiving member 21 is located within the open space 90. When the processing box 100 is installed in the working position of the imaging device, the driving force output member of the imaging device moves to the position of the driving force receiving member 21 in the processing box 100 and engages with the driving force receiving member 21 to transmit the driving force to the driving force receiving member 21, causing the driving force receiving member 21 to rotate around its own axis. When the processing box 100 is installed inside the imaging device, the open space 90 formed by the first surface 61 and the first protrusion 71 can serve as a clearance space for the driving force output component of the imaging device, avoiding interference between the driving force output component of the imaging device and the components on the processing box 100. This helps to achieve the engagement between the driving force output component and the driving force receiving component 21, ensuring that the driving force of the imaging device can be smoothly transmitted to the processing box 100, and thus improving the reliability of the processing box 100.

[0081] like Figure 5 As shown, at least a portion of the projection of the second component 70 along the first direction coincides with the first component 60. Figure 5 In the diagram, the dashed line represents the portion of the first component 60 that is obscured by the second component 70 in the first direction. Furthermore, at least a portion of the projection of the first protrusion 71 along the first direction coincides with the first component 60. This overlap of at least a portion of the projection of the second component 70 in the first direction with the first component 60 allows for a more compact structure of the processing box 100, contributing to its miniaturization. Preferably, the first component 60 and the second component 70 are spaced apart, meaning they do not contact each other. This reduces the impact vibration generated when the second component 70 is pressed by the pressure applied in the imaging device on the first component 60.

[0082] Optionally, such as Figure 6As shown, at least a portion of the first protrusion 71 lies within the projection range of the photosensitive drum 20 along the first direction. Here, the projection range of the photosensitive drum 20 along the first direction is as follows: Figure 6 As shown by the dashed line, the first protrusion 71 can be completely located within the projection range of the photosensitive drum 20 along the first direction, thereby restricting the position of the first protrusion 71 on the processing box 100. This ensures that after the processing box 100 is installed inside the imaging device, the first protrusion 71 can receive the pressure of the imaging device, which helps to improve the stability of the processing box 100.

[0083] like Figure 7 As shown, in the first direction, the second member 70 is further away from the second side 12 of the housing 10 relative to the first member 60, and the first protrusion 71 is the part of the second member 70 furthest from the second side 12 of the housing 10. At least a portion of the first protrusion 71 is at a greater distance from the second side 12 of the housing 10 than the distance between the first surface 61 and the second side 12 of the housing 10. Figure 7 As shown, the distance between the first surface 61 and the second side 12 of the housing 10 is L1, and the distance between the first protrusion 71 and the second side 12 of the housing 10 is L2, where L2 is greater than L1. Thus, the first protrusion 71 protrudes further outward than the first surface 61 in the first direction, ensuring that when the first protrusion 71 receives the pressure from the imaging device, the imaging device will not interfere with the first surface 61 of the first component 60, thus helping to ensure the stability and reliability of the pressure received by the first protrusion 71 from the imaging device.

[0084] In a third direction perpendicular to the photosensitive drum axis A1, the distance between at least a portion of the photosensitive drum axis A1 and the first protrusion 71 is less than the radius of the photosensitive drum 20. This third direction is the direction of the line connecting the photosensitive drum axis A1 and the first protrusion 71, and it intersects with both the first and second directions. Figure 6 As shown, in the third direction, the distance between the photosensitive drum axis A1 and the first protrusion 71 is L3, and the radius of the photosensitive drum 20 is R, where L3 is less than R. Limiting the position of the first protrusion 71 on the processing box 100 to within the radius of the photosensitive drum 20 can prevent the processing box 100 from shaking significantly after being compressed by the imaging device, thus helping to improve the stability of the processing box 100.

[0085] Optionally, such as Figure 2 , Figure 8 and Figure 9 As shown, the first member 60 includes a second protrusion 63 projecting in a first direction away from the second side 12 of the housing 10. The second protrusion 63 is a structure on the first member 60 connected to the first side 11 of the housing 10. Figure 10As shown, in the fourth direction perpendicular to the photosensitive drum axis A1, the distance between the photosensitive drum axis A1 and the second protrusion 63 is greater than or equal to the radius of the photosensitive drum 20. The fourth direction is the direction of the line connecting the photosensitive drum axis A1 and the second protrusion 63, and it intersects the first and second directions. Figure 10 As shown, in the fourth direction, the distance between the photosensitive drum axis A1 and the second protrusion 63 is L4, and the radius of the photosensitive drum 20 is R, where L4 is greater than R. Optionally, L4 can also be equal to R. Thus, the second protrusion 63 is a structure on the first member 60 used to connect the housing 10. By placing the second protrusion 63 outside the radius of the photosensitive drum 20, the mutual influence between the second protrusion 63 and the photosensitive drum 20 can be reduced, which helps to improve the stability of the processing cartridge 100.

[0086] Optionally, such as Figure 5 As shown, the projection of the first protrusion 71 along the first direction does not coincide with that of the second protrusion 63. In the direction perpendicular to the photosensitive drum axis A1, the photosensitive drum axis A1, the first protrusion 71, and the second protrusion 63 are arranged sequentially in a straight line. This separates the function of the first protrusion 71 in receiving pressure from the installation and positioning function of the second protrusion 63 in the first direction, and reduces the mutual interference between the first protrusion 71 and the second protrusion 63, thus helping to improve the reliability of the processing box 100.

[0087] Optionally, such as Figure 1 and Figure 2 As shown, the processing box 100 also includes a support member 80, which is located in the hollow portion 51 of the drum flange 50 and supports the drum flange 50. Specifically, the outer surface of the support member 80 is adapted to the inner surface 52 of the drum flange 50, and the support member 80 supports the drum flange 50 through the contact between its outer surface and the inner surface 52 of the drum flange 50. The processing box 100 may also include a biasing member 81, which is a structure with a certain elasticity, such as a torsion spring, rubber, elastic metal sheet, elastic foam pad, etc. One end of the biasing member 81 is connected to the support member 80, and the other end of the biasing member 81 is connected to the driving force receiving member 21. The biasing member 81 is used to bias the opening of the driving force receiving member 21 toward the open space 90. Specifically, the biasing member 81 is used to bias the opening of the driving force receiving member 21 toward the driving force output member of the imaging device.

[0088] like Figure 1 , Figure 2 , Figure 8 and Figure 9As shown, the first component 60 also includes a plurality of third protrusions 64, which protrude toward the second side 12 of the housing 10 in a first direction. In the first direction, at least a portion of the third protrusions 64 is closer to the second side 12 of the housing 10 than the protrusion 601. The third protrusions 64 are inserted into the support member 80. Specifically, the support member 80 may be provided with a plurality of grooves adapted to the third protrusions 64. When the first component 60 is inserted into the support member 80, the plurality of third protrusions 64 are respectively inserted into the corresponding grooves. The first component 60 can restrict the rotation of the support member 80 relative to the housing 10 by means of the third protrusions 64, so that the support member 80 and the biasing member 81 on the support member 80 are always kept in a position in which the opening of the driving force receiving member 21 faces the driving force output member of the imaging device.

[0089] Optionally, the protrusion 601 on the first member 60 is adapted to the support member 80, and the protrusion 601 supports the support member 80. Specifically, the support member 80 has a supported portion adapted to the protrusion 601, and the protrusion 601 is connected to the supported portion. In this way, the first member 60 supports the support member 80 through the contact between the protrusion 601 and the supported portion of the support member 80, and the support member 80 supports the drum flange 50 through the contact between its outer surface and the inner surface 52 of the drum flange 50. The first member 60 does not directly contact the inner surface of the drum flange 50. It should be noted that the third protrusion 64 also does not contact the inner surface 52 of the drum flange 50, but only limits the support member 80. By having the support member 80 support the drum flange 50, friction between the third protrusion 64 and the drum flange 50 can be avoided, which helps to reduce wear between the two.

[0090] The processing box 100 provided in this application has a first component 60 supporting the drum flange 50 and a second component 70 for receiving external pressure separately. During the installation of the processing box 100, the first component 60 and the second component 70 can be installed separately, so that the first component 60 and the second component 70 only need to be adapted to their respective installation positions. This can reduce the risk of interference during the installation of the processing box 100, thereby reducing installation errors or debugging time caused by mutual interference of components, and helping to improve the installation efficiency of the processing box 100.

[0091] Example 2:

[0092] Next, we will combine the appendix Figure 10 and Figure 11This invention will now describe Embodiment 2 in detail. Embodiment 2 provides a processing box 100. The similarities between the processing box 100 in this embodiment and the processing box 100 in Embodiment 1 will not be repeated here. The difference between the processing box 100 in this embodiment and the processing box 100 in Embodiment 1 is that the structure of the first component 60 in this embodiment is different from that in Embodiment 1. Specifically, the second protrusion 63 of the first component 60 in this embodiment does not protrude in the first direction along the second side 12 away from the housing 10, but is in the same plane as the first surface 61 of the first component 60, and the second protrusion 63 extends outward from the first surface 61.

[0093] In this embodiment, the first protrusion 71 of the first component 60 is coplanar with the first surface 61, which can reduce the complexity of the first component 60, reduce the processing difficulty of the first component 60, and help reduce the production cost of the processing box 100.

[0094] Example 3:

[0095] Next, we will combine the appendix Figure 12 and Figure 13 This invention will now describe Embodiment 3 in detail. Embodiment 3 provides a processing box 100. The similarities between the processing box 100 in this embodiment and the processing box 100 in Embodiment 1 or Embodiment 2 will not be repeated here. The difference between the processing box 100 in this embodiment and the processing box 100 in Embodiment 1 or Embodiment 2 is that the structure of the first surface 61 of the first component 60 in this embodiment is different from the structure of the first surface 61 of the first component 60 in Embodiment 1 or Embodiment 2. Specifically, the first surface 61 in this embodiment is not perpendicular to the photosensitive drum axis A1.

[0096] like Figure 12 As shown, the first surface 61 is constructed as an inclined surface and is not perpendicular to the axis A1 of the photosensitive drum. The surface on the second member 70 that contacts the first surface 61 is constructed as an inclined surface adapted to the first surface 61.

[0097] like Figure 13 As shown, the first surface 61 is constructed as a wavy surface and is not perpendicular to the axis A1 of the photosensitive drum. The surface on the second component 70 that contacts the first surface 61 is constructed as a wavy surface adapted to the first surface 61.

[0098] Optionally, the first component 60 and the second component 70 are constructed as an integrally formed bearing component, the bearing component including the first component 60 and the second component 70, and the first surface 61 is constructed as a surface on the bearing component that is not perpendicular to the axis A1 of the photosensitive drum.

[0099] In this embodiment, the first surface 61 of the first component 60 is not perpendicular to the axis A1 of the photosensitive drum, which can enrich the structural form of the first surface 61 and more effectively disperse or absorb vibrations during the imaging process, thus helping to improve the stability and reliability of the processing box 100.

[0100] Example 4:

[0101] Next, we will combine the appendix Figure 14 and Figure 15 This invention will now describe Embodiment 4 in detail. Embodiment 4 provides a processing box 100. The similarities between this embodiment and the processing box 100 in Embodiments 1, 2, or 3 will not be repeated here. The difference between this embodiment and the processing box 100 in Embodiments 1, 2, or 3 lies in the separate arrangement of the first component 60 and the second component 70. Specifically, in Embodiments 1, 2, or 3, the first component 60 and the second component 70 are generally separated in a first direction, while in this embodiment, they are separated in a direction perpendicular to the first direction. The first component 60 and the second component 70 each include structures for supporting the drum flange 50, and both together support the drum flange 50.

[0102] In this embodiment, the first component 60 and the second component 70 can be separately arranged in a manner that is not along the first direction, which can simplify the structure of the first component 60 and the second component 70.

[0103] Example 5

[0104] Next, we will combine the appendix Figures 16 to 18This invention will now describe Embodiment 5 in detail. Embodiment 5 provides a processing box 100. The similarities between this embodiment and the processing boxes 100 in Embodiments 1, 2, 3, or 4 will not be repeated here. The difference between this embodiment and the processing boxes 100 in Embodiments 1, 2, 3, or 4 is that the processing box includes a first cover 13, which is detachably connected to or integrally formed with the housing 10. The first protrusion 71 of the second component 70 includes a first protrusion 71a and a second protrusion 71b disposed opposite to the first protrusion 71a. Specifically, the first protrusion 71a and the second protrusion 71b are disposed at opposite ends of the driving force receiving component 21. The first protrusion 71a and / or the second protrusion 71b can be integrally formed with the housing 10. Further, the first protrusion 71a and / or the second protrusion 71b are integrally formed with the first cover 13.

[0105] Optionally, such as Figures 17 to 18 As shown, the inner side of the first component 60 is provided with a stepped surface, which provides mounting positions for other components. Several first surfaces 61 are constructed as a stepped surface. At least one of the first surfaces 61 on the stepped surface lies in a plane that is not perpendicular to the photosensitive drum axis A1; preferably, all the first surfaces 61 on the stepped surface lie in a plane that is not perpendicular to the photosensitive drum axis A1, that is, the plane of the stepped surface is inclined relative to the photosensitive drum axis A1. This increases the contact area between other components and the first component, improving the stability of the processing box 100; simultaneously, the inclined step surface can compensate for machining tolerances and reduce rigid jamming during vertical assembly.

[0106] Alternatively, the mounting positions of other components can also be set at other locations besides the first component 60 (e.g., mounted on the housing 10). In this way, the interior of the first component 60 does not need to have a stepped surface, and the first component 60 is cylindrical in shape. By making the first component 60 cylindrical and not having a stepped surface inside, the structure of the first component 60 can be simplified and it is easier to manufacture.

[0107] Example 6

[0108] Next, we will combine the appendix Figure 19This invention will now describe Embodiment 6 in detail. Embodiment 6 provides a processing cartridge 100. The similarities between this embodiment and the processing cartridges 100 in Embodiments 1, 2, 3, 4, or 5 will not be repeated here. The difference between this embodiment and the processing cartridges 100 in Embodiments 1, 2, 3, 4, or 5 is that, when measured along a direction perpendicular to the photosensitive drum axis A1, the distance from the photosensitive drum axis A1 to the first protrusion 71 is greater than the distance from the photosensitive drum axis A1 to the outer surface of the photosensitive drum 20 (the radius R of the photosensitive drum 20). When the first protrusion 71 includes a first protrusion 71a and a second protrusion 71b, when measured along a direction perpendicular to the photosensitive drum axis A1, the distance L5 from the photosensitive drum axis A1 to the first protrusion 71a is greater than the radius R of the photosensitive drum 20, and the distance L6 from the photosensitive drum axis A1 to the second protrusion 71b is greater than the radius R of the photosensitive drum 20.

[0109] In this embodiment, the first protrusion 71 is located outside the radius of the photosensitive drum 20, which can reduce the number of parts within the radius of the photosensitive drum 20 and help optimize the spatial layout of the processing box 100.

[0110] Example 7

[0111] Next, we will combine the appendix Figure 20 This invention will now describe Embodiment 7 in detail. Embodiment 7 provides a processing box 100. The similarities between this embodiment and the processing boxes 100 in Embodiments 1, 2, 3, 4, 5, or 6 will not be repeated here. The difference between this embodiment and the processing boxes 100 in Embodiments 1, 2, 3, 4, 5, or 6 is that the drum flange 50 does not include a hollow portion or an inner surface facing the photosensitive drum axis A1, and the driving force receiving part 21 is fixedly connected to the end of the drum flange 50. For example, the driving force receiving part 21 can be fixedly connected to the end of the drum flange 50 by welding, bonding, snap-fit ​​connection, or other methods.

[0112] Preferably, the driving force receiving part 21 has a recess, and the drum flange 50 has a protrusion that matches the recess. The driving force receiving part 21 is fixedly connected to the end of the drum flange 50 through the cooperation of the recess and the protrusion. Optionally, the driving force receiving part 21 can be fixedly connected to the end of the drum flange 50 by a threaded connection. That is, a matching thread is provided in the recess of the driving force receiving part 21 and the protrusion of the drum flange 50, and the driving force receiving part 21 is fixedly connected to the end of the drum flange 50 by the thread. Preferably, in order to reduce the possibility of loosening of the connection between the driving force receiving part 21 and the drum flange 50 as the driving force receiving part 21 rotates during the printing process, the direction of the thread is opposite to the direction of rotation of the driving force receiving part 21 during printing.

[0113] In this embodiment, the drum flange 50 does not have a hollow portion and an inner surface facing the photosensitive drum axis A1, which simplifies the structure of the drum flange 50 and facilitates the installation and fixation of the drum flange 50 and the driving force receiving part 21.

[0114] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A processing box, the processing box comprising: A housing having a first side and a second side disposed apart from the first side in a first direction; A photosensitive drum is rotatable about a photosensitive drum axis extending along the first direction, and one end of the photosensitive drum is rotatably supported on the second side of the housing; A developing roller, which is rotatable about its developing roller axis; A developing frame that rotatably supports the developing roller and is connected to the housing; The processing box is characterized in that it further includes: A drum flange, which is located on the first side of the housing and connected to the other end of the photosensitive drum; A first component is connected to the first side of the housing and rotatably supports the drum flange; The second component is connected to the first side of the housing. The second component includes a first protrusion protruding in the first direction in a direction away from the second side of the housing. The second component is separately disposed from the first component.

2. The process cartridge according to claim 1, wherein, The first component and the second component are spaced apart in the first direction.

3. The process cartridge of claim 1, wherein, At least one portion of the projection of the second component along the first direction coincides with the first component.

4. The process cartridge of claim 1, wherein, At least a portion of the projection of the first protrusion along the first direction coincides with the photosensitive drum.

5. The process cartridge of claim 1, wherein, The first component includes a first surface facing the exterior of the processing box, the first surface being non-perpendicular to the axis of the photosensitive drum.

6. The process cartridge of claim 5 wherein, The first component includes a first opening leading to the drum flange, and the photosensitive drum axis is located within the first opening; The first surface and the first protrusion form an open space, which communicates with the first opening. In a second direction perpendicular to the axis of the photosensitive drum, the open space extends to the axis of the photosensitive drum.

7. The process cartridge of claim 5 wherein, In the first direction, at least a portion of the first protrusion is at a distance greater than the distance between the first surface and the second side of the housing.

8. The process cartridge of claim 1, wherein, In a third direction perpendicular to the axis of the photosensitive drum, the distance between the axis of the photosensitive drum and at least a portion of the first protrusion is less than the radius of the photosensitive drum.

9. The process cartridge of claim 1, wherein, The first component includes a second protrusion projecting in the first direction along the second side away from the housing, and in a fourth direction perpendicular to the axis of the photosensitive drum, the distance between the axis of the photosensitive drum and the second protrusion is greater than or equal to the radius of the photosensitive drum.

10. The process cartridge of claim 9 wherein, The projection of the first protrusion along the first direction does not coincide with the second protrusion.

11. The processing box according to claim 1, characterized in that, The processing box further includes a support member, the drum flange includes a hollow portion and an inner surface facing the axis of the photosensitive drum, and the support member is located in the hollow portion of the drum flange and supports the drum flange; The first component further includes a third protrusion, which is inserted into the support member and does not contact the inner surface of the drum flange.

12. A processing box, comprising: A housing having a first side and a second side disposed apart from the first side in a first direction; A photosensitive drum is rotatable about a photosensitive drum axis extending along the first direction, and one end of the photosensitive drum is rotatably supported on the second side of the housing; A developing roller, which is rotatable about its developing roller axis; A developing frame that rotatably supports the developing roller and is connected to the housing; The processing box is characterized in that it further includes: A drum flange, which is located on the first side of the housing and connected to the other end of the photosensitive drum; A bearing member is located on the first side of the housing in the first direction, the bearing member including a first surface facing the outside of the processing box, the first surface being non-perpendicular to the axis of the photosensitive drum.

Images