Processing box

Abstract

The utility model provides a processing box which comprises a waste powder bin, a bearing plate, a photosensitive drum and a pressed protrusion, and the bearing plate is arranged on the first side, in the first direction, of the waste powder bin and is fixed relative to the waste powder bin. The photosensitive drum is rotatably arranged in the waste powder bin, the photosensitive drum is rotatably connected with the bearing plate, the photosensitive drum comprises a drum body, and the drum body is provided with a rotating axis extending in the first direction. The pressed protrusion is arranged on the first side, in the first direction, of the waste powder bin and protrudes in the direction away from the photosensitive drum, and the pressed protrusion is used for being matched with a pressure piece of the imaging device. In a plane projection perpendicular to the processing box in the first direction, the projection range of the pressed protrusions is located in the projection range of the drum body, and the pressed protrusions and the bearing plate are of a split structure. According to the processing box provided by the invention, the pressed bulges and the bearing plate are conveniently molded by adopting different materials, so that different structure requirements are met, and the manufacturing cost is reduced; and the pressure borne by the pressed bulge cannot be directly transmitted to the bearing plate, so that the photosensitive drum rotates more stably.

Description

Technical Field

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

[0002] Processing cartridges are widely used in electrophotographic imaging equipment such as laser printers, copiers, and fax machines. The processing cartridge mainly consists of a developing unit, a photosensitive drum, and a waste toner container, all assembled and secured by a frame. The photosensitive drum is rotatably mounted on the waste toner container. The developing roller delivers developer to the photosensitive drum for electrostatic latent image development. After development, excess waste toner is discharged into the waste toner container. During installation, the photosensitive drum is supported and secured using a bearing plate. Simultaneously, pressure protrusions engage with the pressure components of the imaging equipment to firmly secure the processing cartridge and prevent it from easily jumping out.

[0003] In related technologies, the pressure protrusion is integrally molded onto the bearing plate. On the one hand, this places high demands on the wear resistance and strength of the molded part, increasing production costs and making it impossible to adapt to the different requirements of the pressure protrusion and the bearing plate. At the same time, the pressure borne by the pressure protrusion will also affect the rotation of the photosensitive drum. Utility Model Content

[0004] In view of this, the present application aims to provide a processing box in which the pressure-bearing protrusion and the bearing plate are formed separately, which can be made of different materials, and the pressure borne by the pressure-bearing protrusion is not directly transmitted to the photosensitive drum through the bearing plate, resulting in higher rotational stability of the photosensitive drum.

[0005] This application provides a processing box for an imaging device, comprising:

[0006] Waste powder silo;

[0007] A bearing plate is disposed on a first side of the waste powder bin along a first direction and is fixed relative to the waste powder bin;

[0008] A photosensitive drum is rotatably disposed in the waste powder bin, the photosensitive drum is rotatably connected to the bearing plate, the photosensitive drum includes a drum body, the drum body having a rotation axis extending along a first direction;

[0009] A pressure-bearing protrusion is provided on the first side of the waste powder bin along the first direction and protrudes in a direction away from the photosensitive drum. The pressure-bearing protrusion is used to cooperate with the pressure component of the imaging device to fix the processing box.

[0010] In a plane orthographic projection perpendicular to the processing box along the first direction, the projection range of the pressure-bearing protrusion is located within the projection range of the drum body;

[0011] The pressure-bearing protrusion and the bearing plate are separate structures.

[0012] In some implementations, the bearing plate and the waste powder bin are separate structures.

[0013] In some implementations, the pressure-bearing protrusion is integrally formed on the waste powder hopper.

[0014] In some implementations, the pressure-bearing protrusion and the waste powder hopper are separate structures.

[0015] In some embodiments, the processing box includes a mounting block connected to the pressure-bearing protrusion, and the processing box includes a first connector connecting the mounting block and the waste powder bin to achieve the connection between the pressure-bearing protrusion and the waste powder bin.

[0016] In some implementations, the mounting block and the pressure-bearing protrusion are an integral structure;

[0017] And / or, the mounting block has a through mounting hole, the waste powder bin is provided with a first connecting hole, and the first connector passes through the mounting hole and the first connecting hole to connect the mounting block and the waste powder bin.

[0018] In some implementations, the bearing plate is provided with a through hole, the waste powder bin is provided with a second connecting hole, and the processing box includes a second connector, which passes through the through hole and the second connecting hole to connect the bearing plate and the waste powder bin.

[0019] In some embodiments, the photosensitive drum includes a drive force receiver for receiving drive force, the drive force receiver passing through the bearing plate and exposed through the bearing plate to the processing box, and the drum body being poweredly connected to the drive force receiver to rotate under the drive of the drive force receiver.

[0020] In some implementations, the driving force receiver and the drum body do not move relative to each other along the axial direction;

[0021] And / or, the drum body and the driving force receiver are operably rotatable relative to or synchronously rotated.

[0022] In some embodiments, the photosensitive drum includes a clutch disposed within the drum body. The clutch has an engaged state and an unengaged state. In the unengaged state, the drum body is disconnected from the driving force receiver, and the driving force receiver is rotatable relative to the drum body. In the engaged state, the drum body is engaged with the driving force receiver, and the driving force receiver drives the drum body to rotate synchronously.

[0023] The processing box provided in this application embodiment has a separate structure for the pressure-bearing protrusion and the bearing plate. On the one hand, this facilitates the use of different materials to form the pressure-bearing protrusion and the bearing plate. The pressure-bearing protrusion can be made of a high-strength material according to strength requirements, while the bearing plate can be made of a high-wear-resistant material according to wear resistance requirements, thus adapting to different structural needs and reducing manufacturing costs. On the other hand, there is no connecting relationship between the pressure-bearing protrusion and the bearing plate. The pressure borne by the pressure-bearing protrusion is not directly transmitted to the bearing plate. The pressure borne by the pressure-bearing protrusion is first consumed through the waste toner bin. In this way, the impact on the rotation of the photosensitive drum can be reduced, making the rotation of the photosensitive drum more stable and increasing the working reliability of the processing box. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the processing box according to the first embodiment of this application, wherein the pressure-bearing protrusion and the waste powder bin are separate structures;

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 for Figure 1 A schematic diagram showing the assembly of some structures of the processing box shown.

[0027] Figure 4 for Figure 1 The structure shown is a planar projection along a direction perpendicular to the first direction, where the dashed line represents the projection of the drum body.

[0028] Figure 5 This is a partial structural diagram of the processing box according to the second embodiment of this application, wherein the pressure-bearing protrusion is integrally formed on the waste powder bin.

[0029] Explanation of reference numerals in the attached figures

[0030] 100-processing box;

[0031] 10-Waste powder bin; 10a-First connecting hole; 10b-Second connecting hole; 11-Photosensitive drum; 111-Drum body; 112-Drive force receiver; 113-Drum gear; 12-Bearing plate; 12a-Through hole; 13-Pressure protrusion; 14-Mounting block; 14a-Mounting hole; 15-First connector; 16-Second connector. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0033] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0034] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0036] This application provides a processing box 100 for an imaging device.

[0037] The processing cartridge 100 is able to convert data in a computer into a visual image and print it onto paper through a developing process.

[0038] Imaging equipment refers to devices that use electrophotographic imaging methods to form images on recording materials. Imaging equipment can include copiers, fax machines, printers (laser beam printers, LED printers, etc.), and corresponding multifunction printers.

[0039] Please see Figures 1 to 5 The processing box 100 includes a waste powder bin 10, a bearing plate 12, a photosensitive drum 11, and a pressure protrusion 13.

[0040] The bearing plate 12 is disposed on the first side of the waste powder bin 10 along the first direction and is fixed relative to the waste powder bin 10.

[0041] The photosensitive drum 11 is rotatably disposed in the waste powder bin 10. The photosensitive drum 11 is rotatably connected to the bearing plate 12. The photosensitive drum 11 includes a drum body 111, which has a rotation axis extending in a first direction.

[0042] A pressure protrusion 13 is disposed on a first side of the waste toner hopper 10 along a first direction and protrudes in a direction away from the photosensitive drum 11. The pressure protrusion 13 is used to cooperate with the pressure component of the imaging device to fix the processing box 100.

[0043] In the orthographic projection of the plane perpendicular to the processing box 100 along the first direction, the projection of the pressure protrusion 13 falls within the projection range of the drum body 111.

[0044] The pressure-bearing protrusion 13 and the bearing plate 12 are separate structures.

[0045] The waste powder bin 10 is used to collect waste powder generated during the imaging process.

[0046] For example, the processing box 100 also includes a developing unit, which includes a developing box and a developing roller rotatably disposed within the developing box. The developing box is used to store developer, and the developing roller is used to carry developer. During the developing process, the developing roller supplies developer to the photosensitive drum 11 to develop the electrostatic latent image on the photosensitive drum 11. During the developing process, not all developer is able to be transferred to the paper, and unused or excess developer is stored through the waste toner hopper 10.

[0047] The bearing plate 12 is disposed on the first side of the waste powder bin 10 along the first direction, which means that there is one bearing plate 12 and it is disposed on the first side of the waste powder bin 10 along the first direction.

[0048] The bearing plate 12 is fixed relative to the waste powder bin 10, meaning that there is no relative movement between the bearing plate 12 and the waste powder bin 10, while the photosensitive drum 11 can rotate relative to the waste powder bin 10 and the bearing plate 12.

[0049] The photosensitive drum 11 is rotatably connected to the bearing plate 12, which provides mounting support for the photosensitive drum 11 and enables the photosensitive drum 11 to rotate about its axis of rotation. The drum body 111 refers to the part of the photosensitive drum 11 used for electrostatic latent image development. The drum body 111 is generally cylindrical in shape.

[0050] The pressure protrusion 13 is also located on the first side of the waste powder bin 10 along the first direction, that is, the pressure protrusion 13 and the bearing plate 12 are located on the same side of the waste powder bin 10.

[0051] The side where the driving force receiving member 112 is located is designated as the driving side. The first side of the waste powder bin 10 along the first direction is the driving side, and the second side of the waste powder bin 10 along the first direction (the side opposite to the first side) is the non-driving side. Both the bearing plate 12 and the pressure protrusion 13 are located on the driving side.

[0052] The pressure-bearing protrusion 13 is used to cooperate with the pressure component of the imaging device to fix the processing box 100. That is, under the action of the pressure component of the imaging device, the pressure-bearing protrusion 13 can transmit pressure to the waste powder bin 10 and the entire processing box 100, so that the processing box 100 remains fixed during operation, preventing jumping, abnormal noise, etc., and ensuring that the position of the processing box 100 within the imaging device is fixed, allowing it to work stably.

[0053] Understandably, the pressure protrusion 13 is also fixed relative to the waste powder hopper 10.

[0054] For example, the pressure protrusion 13 is arc-shaped.

[0055] Please see Figure 4 In the orthographic projection of the plane perpendicular to the processing box 100 along the first direction, the projection of the pressure protrusion 13 falls within the projection range of the drum body 111. This means that the projection of the entire structure of the pressure protrusion 13 will not exceed the range of the projection of the drum body 111. Thus, the position of the pressure protrusion 13 on the waste powder bin 10 is relatively close to the photosensitive drum 11, and the position of the pressure protrusion 13 is relatively close to the bearing plate 12.

[0056] For example, in some embodiments, the projection of the pressure protrusion 13 is located in the region above the drum body 111 along the axis of rotation.

[0057] Therefore, in this embodiment, the pressure-bearing protrusion 13 and the bearing plate 12 are separate structures. Thus, the pressure-bearing protrusion 13 and the bearing plate 12 are manufactured separately, and there is no connecting or mating relationship between them.

[0058] Understandably, the pressure-bearing protrusion 13, which mates with the pressure components of the imaging device, requires high strength. The bearing plate 12, rotatably connected to the photosensitive drum 11, also requires high wear resistance. In related technologies, the pressure-bearing protrusion and bearing plate are integrally molded to reduce assembly steps. However, this method places high demands on the materials of both the protrusion and bearing plate, requiring both high strength and high wear resistance, thus increasing material costs. Furthermore, since the pressure-bearing protrusion and bearing plate are integrally molded, the pressure on the protrusion is directly transmitted to the bearing plate, affecting the smooth rotation of the photosensitive drum.

[0059] Therefore, in the processing box 100 provided in this application embodiment, the pressure-bearing protrusion 13 and the bearing plate 12 are separate structures. On the one hand, this facilitates the use of different materials to form the pressure-bearing protrusion 13 and the bearing plate 12. The pressure-bearing protrusion 13 can be made of a high-strength material according to strength requirements, and the bearing plate 12 can be made of a high-wear-resistant material according to wear resistance requirements, thus adapting to different structural requirements and reducing manufacturing costs. On the other hand, there is no connection or fit between the pressure-bearing protrusion 13 and the bearing plate 12. The pressure borne by the pressure-bearing protrusion 13 will not be directly transmitted to the bearing plate 12. The pressure borne by the pressure-bearing protrusion 13 will be partially consumed by the waste powder bin 10 first. In this way, the impact on the rotation of the photosensitive drum 11 can be reduced, making the rotation of the photosensitive drum 11 more stable and increasing the working reliability of the processing box 100.

[0060] In some embodiments, please refer to Figures 1 to 4 The bearing plate 12 and the waste powder bin 10 are separate structures.

[0061] That is, the bearing plate 12 and the waste powder hopper 10 are manufactured separately and then connected together.

[0062] It is understandable that the waste powder hopper 10 has relatively low requirements for wear resistance. If the bearing plate and the waste powder hopper are integrally formed, the waste powder hopper and the bearing plate will use the same material and have high requirements for wear resistance, which will increase the manufacturing cost.

[0063] In this embodiment, the bearing plate 12 and the waste powder hopper 10 are manufactured separately, which allows the bearing plate 12 and the waste powder hopper 10 to be made of different materials. The waste powder hopper 10 can be made of a material with low wear resistance, thereby reducing manufacturing costs.

[0064] In some embodiments, the bearing plate 12 is a one-piece structure.

[0065] In other words, the bearing plate 12 is manufactured as a single piece. This reduces assembly steps, manufacturing difficulty, and also facilitates increased stability of the rotational connection between the bearing plate 12 and the photosensitive drum 11. In embodiments where the bearing plate 12 and the waste powder hopper 10 are manufactured separately, the bearing plate 12 is integrally formed before being assembled with the waste powder hopper 10, simplifying the assembly process.

[0066] In some embodiments, please refer to Figure 5 The pressure protrusion 13 is integrally formed on the waste powder silo 10.

[0067] That is, the pressure-bearing protrusion 13 and the waste powder hopper 10 are manufactured as a single piece. This reduces the assembly process and also increases the pressure-bearing capacity of the pressure-bearing protrusion 13 through the waste powder hopper 10, thereby increasing the working stability of the treatment box 100.

[0068] In some embodiments, please refer to Figures 1 to 4The pressure protrusion 13 and the waste powder hopper 10 are separate structures.

[0069] That is, after the pressure protrusion 13 and the waste powder hopper 10 are formed separately, the pressure protrusion 13 and the waste powder hopper 10 are connected. In this way, the material requirements of the waste powder hopper 10 can be reduced and the manufacturing cost can be reduced.

[0070] In embodiments where the pressure-bearing protrusion 13 and the waste powder hopper 10 are formed separately, the connection method between the pressure-bearing protrusion 13 and the waste powder hopper 10 is not limited. Exemplarily, it can be welding, bonding, or screw connection, etc., and there is no limitation here.

[0071] For example, in some embodiments, please refer to Figures 1 to 4 The processing box 100 includes a mounting block 14, which is connected to the pressure protrusion 13. The processing box 100 also includes a first connector 15, which connects the mounting block 14 to the waste powder bin 10 to achieve the connection between the pressure protrusion 13 and the waste powder bin 10.

[0072] In this embodiment, the mounting block 14 can, on the one hand, increase the pressure-bearing capacity of the pressure-bearing protrusion 13, and on the other hand, it can also connect the pressure-bearing protrusion 13 and the waste powder bin 10 through the mounting block 14, thereby increasing the reliability of the connection.

[0073] The first connector 15 connects the mounting block 14 and the waste powder bin 10, without damaging the pressure protrusion 13, and at the same time increases the stability of the connection.

[0074] The specific construction of the first connector 15 is not limited; it can be a screw, or a combination of a bolt and a nut.

[0075] In some embodiments, the mounting block 14 and the pressure protrusion 13 are an integral structure.

[0076] That is, after the mounting block 14 and the pressure protrusion 13 are integrally manufactured, the mounting block 14 is connected to the waste powder hopper 10 through the first connector 15, so as to realize the connection between the pressure protrusion 13 and the waste powder hopper 10.

[0077] In this embodiment, assembly steps can be reduced while increasing the structural strength of the pressure-bearing protrusion 13 and improving its pressure-bearing capacity.

[0078] In some embodiments, please refer to Figure 3 The mounting block 14 has a through mounting hole 14a, the waste powder bin 10 is provided with a first connecting hole 10a, and the first connector 15 passes through the mounting hole 14a and the first connecting hole 10a to connect the mounting block 14 and the waste powder bin 10.

[0079] In this embodiment, the first connector 15 cooperates with the mounting hole 14a and the first connection hole 10a to achieve a tight connection between the mounting block 14 and the waste powder bin 10, thereby achieving the connection between the pressure protrusion 13 and the waste powder bin 10. The connection method is simple and can increase the connection stability of the pressure protrusion 13.

[0080] It is understood that a mounting block 14 may have one or more mounting holes 14a, and the number of first connectors 15 corresponds one-to-one with the number of mounting holes 14a. For example, please refer to... Figure 3 A mounting block 14 is provided with a mounting hole 14a.

[0081] The connection method between the bearing plate 12 and the waste powder bin 10 is not limited; it can be welding, bonding, screw connection, etc., and no restrictions are imposed here.

[0082] For example, in some embodiments, please refer to Figure 3 The bearing plate 12 is provided with a through hole 12a, the waste powder bin 10 is provided with a second connecting hole 10b, and the processing box 100 includes a second connector 16, which passes through the through hole 12a and the second connecting hole 10b to connect the bearing plate 12 and the waste powder bin 10.

[0083] In this embodiment, the bearing plate 12 and the waste powder bin 10 are tightly connected by the cooperation of the second connector 16 with the through hole 12a and the second connecting hole 10b. The connection stability between the bearing plate 12 and the waste powder bin 10 is high, which can provide sufficient rotational support for the photosensitive drum 11 and increase the rotational stability of the photosensitive drum 11.

[0084] The specific construction of the second connector 16 is not limited; it can be a screw, or a bolt and nut combination.

[0085] It is understood that a bearing plate 12 may have one or more through holes 12a, and the number of second connectors 16 corresponds one-to-one with the number of through holes 12a. For example, a bearing plate 12 may have one through hole 12a.

[0086] In some embodiments, please refer to Figure 3 The photosensitive drum 11 includes a drive force receiver 112, which is used to receive drive force. The drive force receiver 112 passes through the bearing plate 12 and is exposed to the processing box 100 through the bearing plate 12. The drum body 111 is poweredly connected to the drive force receiver 112 so as to rotate under the drive of the drive force receiver 112.

[0087] It is understood that the driving force receiver 112 may receive driving force from the imaging device and transmit the driving force to the drum body 111 so that the drum body 111 can rotate about the rotation axis.

[0088] The driving force receiver 112 passes through the bearing plate 12 and is exposed in the processing box 100 through the bearing plate 12. That is, the driving force receiver 112 can be exposed on the outside of the processing box 100 through the bearing plate 12 so as to connect with the driving force source of the imaging device and receive the driving force.

[0089] For example, please refer to Figure 3 The photosensitive drum 11 may also include a drum gear 113 connected to the drum body 111. The drum gear 113 is used to transmit rotational driving force to components outside the photosensitive drum 11, such as magnetic roller gears or other components within the processing cartridge 100. When the driving force receiver 112 drives the drum body 111 to rotate, the drum gear 113 also rotates and, through cooperation with other components, can transmit the rotational driving force from the driving force receiver 112 to components outside the photosensitive drum 11.

[0090] For example, please refer to Figure 3 The drum gear 113 is sleeved on the outside of the driving force receiving member 112, and one end of the bearing plate 12 is engaged with the inner wall of the drum gear 113 to position and support the photosensitive drum 11.

[0091] The specific construction of the driving force receiver 112 is not limited; for example, it can be a coupling.

[0092] The way the drive force receiver 112 and the drum gear 113 are coupled is not limited. For example, the drive force receiver 112 and the drum gear 113 are integrally formed. Of course, they can also be formed separately and then connected. There is no limitation here.

[0093] In this embodiment, the driving force receiver 112 enables the photosensitive drum 11 to accept external driving force to rotate, so as to facilitate development or cleaning of the photosensitive drum 11 and increase the working reliability of the processing box 100.

[0094] In some embodiments, the drive force receiver 112 and the drum body 111 do not move relative to each other along the axial direction.

[0095] That is, the driving force receiver 112 will not move axially relative to the drum body 111. During the operation of the processing box 100, the relative position of the driving force receiver 112 and the drum body 111 along the axial direction is fixed, which can increase the stability of power transmission and ensure power transmission efficiency.

[0096] In this embodiment, the driving force receiver 112 and the drum body 111 do not move relative to each other along the axial direction, which enables the photosensitive drum 11 to rotate at a predetermined speed to stably carry out development. The driving force receiver 112 will not be offset, vibrate or wear due to axial movement relative to the drum body 111, thus increasing the working stability of the processing box 100.

[0097] In some embodiments, the drum body 111 and the drive force receiver 112 are operably rotatable relative to or synchronously rotated.

[0098] Understandably, when the drum body 111 and the driving force receiver 112 rotate relative to each other, the power connection between them can be disconnected, and the driving force of the driving force receiver 112 will not be transmitted to the drum body 111, allowing the driving force receiver 112 to rotate relative to the drum body 111. Alternatively, when the drum body 111 and the driving force receiver 112 rotate synchronously, the driving force receiver 112 and the drum body 111 are in dynamic cooperation, allowing the driving force of the driving force receiver 112 to be transmitted to the drum body 111, thus causing the drum body 111 to rotate synchronously.

[0099] In this embodiment, the drum body 111 and the driving force receiver 112 are operably rotatable relative to or synchronously rotated. During installation, maintenance, or transportation, the relative rotation of the drum body 111 and the driving force receiver 112 helps reduce unnecessary wear or damage. When development is required, the drum body 111 rotates synchronously with the driving force receiver 112, ensuring accurate image formation and transfer to the paper, increasing development reliability. Thus, the overall structural reliability of the processing cartridge 100 is high.

[0100] The method of achieving relative or synchronous rotation between the drum body 111 and the driving force receiving component 112 is not limited.

[0101] In some embodiments, the photosensitive drum 11 includes a clutch disposed within the drum body 111. The clutch has an engaged state and an open state. In the open state, the drum body 111 is disconnected from the drive force receiver 112, and the drive force receiver 112 can rotate relative to the drum body 111. In the engaged state, the drum body 111 is engaged with the drive force receiver 112, and the drive force receiver 112 drives the drum body 111 to rotate synchronously.

[0102] For example, during the installation, maintenance or transportation of the photosensitive drum 11, the clutch is in the open state. At this time, the clutch can disconnect the power transmission between the drum body 111 and the drive force receiver 112. The drive force receiver 112 rotates relative to the drum body 111 without affecting the drum body 111, which can reduce unnecessary wear or damage, so as to carry out the installation or maintenance work normally.

[0103] For example, when development is required, the clutch is in the closed state. At this time, the clutch enables the drum body 111 to be powered and connected to the drive force receiver 112. The drive force receiver 112 drives the drum gear 113 and the drum body 111 to rotate synchronously to achieve electrostatic latent image development.

[0104] For example, the drum gear 113 and the driving force receiver 112 are separate structures. The driving force receiver 112 is connected to the drum gear 113 through a clutch. When the clutch is open, the driving force receiver 112 rotates relative to the drum gear 113 and the drum body 111. When the clutch is closed, the rotational driving force of the driving force receiver 112 can be transmitted to the drum gear 113, and the driving force receiver 112 drives the drum gear 113 and the drum body 111 to rotate.

[0105] In this embodiment, the clutch can control the power transmission state according to actual needs, protect the photosensitive drum 11, and help simplify the operation and maintenance process of the processing box 100. There is no need to worry about damage to the drum body 111 caused by accidental rotation, and it can also ensure efficient and stable working performance when normal use is required.

[0106] The specific form of the clutch is not limited; it can be an electromagnetic clutch or a mechanical clutch. No restrictions are placed here.

[0107] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0108] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A process cartridge for an image forming apparatus, characterized by comprising: The processing cartridge comprises: a waste powder bin; a bearing plate arranged on a first side of the waste powder bin along a first direction and fixed relative to the waste powder bin; a photosensitive drum rotatably arranged in the waste powder bin, the photosensitive drum being rotationally connected with the bearing plate, the photosensitive drum comprising a drum body having a rotation axis extending along the first direction; a pressure receiving protrusion arranged on the first side of the waste powder bin along the first direction and protruding away from the photosensitive drum, the pressure receiving protrusion being configured to cooperate with a pressure member of an image forming device to fix the processing cartridge; in a normal projection of the processing cartridge along a plane perpendicular to the first direction, a projection range of the pressure receiving protrusion is within a projection range of the drum body; wherein the pressure receiving protrusion and the bearing plate are in a split structure.

2. The process cartridge according to claim 1, wherein, The bearing plate and the waste powder bin are in a split structure.

3. The process cartridge of claim 1, wherein, The pressure receiving protrusion is integrally formed on the waste powder bin.

4. The process cartridge of claim 1, wherein, The pressure receiving protrusion and the waste powder bin are in a split structure.

5. The process cartridge of claim 4 wherein, The processing cartridge comprises a mounting block connected with the pressure receiving protrusion, and a first connecting member connecting the mounting block and the waste powder bin to realize the connection between the pressure receiving protrusion and the waste powder bin.

6. The process cartridge of claim 5 wherein, The mounting block and the pressure receiving protrusion are in an integral structure. The mounting block has a through mounting hole, the waste powder bin is provided with a first connecting hole, and the first connecting member is arranged through the mounting hole and the first connecting hole to connect the mounting block and the waste powder bin.

7. The process cartridge of claim 1, wherein, The bearing plate is provided with a through hole, the waste powder bin is provided with a second connecting hole, and the processing cartridge comprises a second connecting member arranged through the through hole and the second connecting hole to connect the bearing plate and the waste powder bin.

8. The process cartridge according to any one of claims 1-7, wherein, The photosensitive drum comprises a driving force receiving member configured to receive a driving force, the driving force receiving member is arranged through the bearing plate and exposed to the processing cartridge via the bearing plate, and the drum body is power connected with the driving force receiving member to rotate under the driving of the driving force receiving member.

9. The process cartridge of claim 8 wherein, The driving force receiving member and the drum body have no relative movement in an axial direction. The drum body and the driving force receiving member are operatively relatively rotatable or synchronously rotatable.

10. The process cartridge of claim 8 wherein, The photosensitive drum comprises a clutch arranged in the drum body, the clutch has a closed state and an open state, in the open state, the drum body is power disconnected with the driving force receiving member, the driving force receiving member can rotate relative to the drum body, and in the closed state, the drum body is power connected with the driving force receiving member, the driving force receiving member drives the drum body to synchronously rotate.

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