Image forming apparatus and process cartridge

Abstract

The invention discloses an image forming device and a process cartridge, the image forming device comprises a fixed side plate, a movable block and an elastic piece, the fixed side plate is provided with a guide groove and a guide track groove, the movable block is provided with a first end part and a second end part, the first end part is movably arranged in the guide groove, the second end part is movably arranged in the guide track groove, and the elastic piece is arranged in the guide track groove. The elastic piece is arranged on the fixed side plate and is connected with the second end part; in the process that the processing box is mounted in or dismounted from the image forming device, the processing box can be matched with the movable block for limiting, and the overturning and sliding of the movable block are controlled through the elastic piece and the guide track groove formed in the fixed side plate; therefore, the processing box can be more smoothly loaded into the image forming device and locked, or the processing box can be more smoothly taken out.

Description

Technical Field

[0001] This application relates to the field of image forming technology, specifically to an image forming apparatus and processing box. Background Technology

[0002] Image forming apparatuses typically include a drive unit for outputting rotational driving force. A processing cartridge can be detachably mounted on the image forming apparatus and cooperates with the drive unit to receive the rotational driving force output by the drive unit. However, in related technologies, during the installation of the processing cartridge into the image forming apparatus, the lack of a supporting and balanced force at the front end of the cartridge easily leads to misalignment. A misaligned processing cartridge is prone to jamming during assembly with the slide rails of the image forming apparatus, resulting in difficulties in assembling and removing the processing cartridge and a poor user experience. Summary of the Invention

[0003] In order to overcome the problems existing in the prior art, the main objective of this application is to provide an image forming apparatus and processing box that are easier to install and remove.

[0004] To achieve the above objectives, this application specifically adopts the following technical solution: This application provides an image forming apparatus, the image forming apparatus comprising: A fixed side plate, wherein the fixed side plate is provided with a guide groove and a guide trajectory groove; A movable block, the movable block having a first end and a second end, the first end being movably disposed in the guide groove, and the second end being movably disposed in the guide trajectory groove; and An elastic element is disposed on the fixed side plate and is connected to the second end. When the first end is subjected to an external force, it can move along the extension direction of the guide groove. During the process of the first end moving along the extension direction of the guide groove, the first end can also be flipped under the guidance of the guide track groove on the movement trajectory of the second end and under the elastic force of the elastic element.

[0005] In some embodiments, when the first end is flipped to its final position with the assistance of the elastic member, the elastic member can apply a thrust to the first end in the same direction as the external force.

[0006] In some embodiments, the guide track groove has a polygonal structure and is used to guide the movement trajectory of the second end so that the second end can drive the first end to flip during the movement.

[0007] In some embodiments, the movable block includes a locking part, a mating part, a connecting part, and a driving part. The locking part and the connecting part are located on opposite sides of the fixed side plate. The mating part is movably accommodated in the guide groove, and the driving part is movably accommodated in the guide track groove. When the locking part is subjected to the external force, the mating part can move along the guide groove, and the driving part can be driven to move in the guide track groove through the connecting part.

[0008] In some embodiments, the driving part is connected to the elastic member. When the engaging part is subjected to the external force, it can move along the extension direction of the guide groove. During the process of the engaging part moving along the extension direction of the guide groove, the driving part moves along the movement trajectory guided by the guide track groove, and the elastic member generates elastic deformation so that the engaging part can be rotated 90° under the guidance of the guide track groove on the movement trajectory of the driving part and under the elastic force of the elastic member.

[0009] In some embodiments, the mating portion includes a first mating end, a second mating end, and an intermediate connecting section, wherein the first mating end and the second mating end are respectively located on both sides of the intermediate connecting section, and the intermediate connecting section is located within the guide groove.

[0010] In some embodiments, the engaging portion includes a first engaging end, a second engaging end, and an intermediate connecting portion, wherein the first engaging end and the second engaging end are respectively located on both sides of the intermediate connecting portion, and the first engaging end is connected to the first mating end.

[0011] In some embodiments, the second engaging end is provided with an engaging groove, the engaging groove including an opening, an arc-shaped portion and a limiting portion, the arc-shaped portion being connected to the limiting portion, and the opening being located between the arc-shaped portion and the limiting portion.

[0012] In some embodiments, the connecting portion includes a first connecting end, a second connecting end, and an intermediate section. The first connecting end and the second connecting end are located on both sides of the intermediate section. The first connecting end is connected to the second mating end, and the second connecting end is connected to the driving portion.

[0013] In some embodiments, the driving unit includes a first driving end, a second driving end, and a connecting segment for connecting the first driving end and the second driving end. The first driving end is connected to the elastic element, the connecting segment is movably disposed in the guide track groove, and the second driving end is connected to the second connecting end.

[0014] In some embodiments, the guide track groove is provided with a limiting end, a first guide slope, and a second guide slope; When the engaging part is subjected to an external force along the first direction, it can move along the first direction. The driving part moves from the limiting end along the first guide slope in a direction away from the guide groove, and then moves along the second guide slope in a direction closer to the guide groove. The elastic element undergoes elastic deformation under the force of the driving part. When the engaging part is subjected to an external force along the second direction, it can move along the second direction. The driving part moves from the limiting end first along the second guide slope toward a direction away from the guide groove, and then along the first guide slope toward a direction closer to the guide groove. The elastic element undergoes elastic deformation under the force of the driving part.

[0015] In some embodiments, during the movement of the engaging portion along the first direction, when the engaging portion flips to a first preset position, the elastic member releases its elastic force, causing the engaging portion to flip to its final position and be subjected to a thrust applied by the elastic member in the same direction as the first direction; During the movement of the engaging part along the second direction, when the engaging part flips to the second preset position, the elastic element releases its elastic force, causing the engaging part to flip back to the initial position and be subjected to a thrust applied by the elastic element in the same direction as the second direction.

[0016] In some embodiments, the elastic element is a torsion spring, which includes a first fixed end and a second fixed end, the first fixed end being connected to the second end, and the second fixed end being fixed to the fixed side plate.

[0017] In some embodiments, the second fixed end is provided with an extension portion, which is snapped onto the fixed side plate.

[0018] In some embodiments, the fixed side plate is provided with a first limiting member for limiting the second fixed end of the torsion spring, and the first limiting member and the torsion spring are located on the same side of the fixed side plate.

[0019] In some embodiments, the first limiting member includes a first limiting protrusion, a second limiting protrusion, and a connecting post. The first limiting protrusion, the second limiting protrusion, and the connecting post are staggered relative to each other. The second fixed end is fixed to the connecting post, and the extension is engaged between the first limiting protrusion and the second limiting protrusion.

[0020] In some embodiments, the elastic element is a tension spring, the image forming apparatus includes a second limiting element, the second limiting element is disposed on the fixed side plate and is located on the same side of the fixed side plate as the connecting portion, one end of the tension spring is connected to the second end, and the other end of the tension spring is connected to the second limiting element.

[0021] In some embodiments, the image forming apparatus further includes a limiting block disposed on the fixed side plate and located on the same side of the fixed side plate as the connecting portion, the limiting block being used to cooperate with the connecting portion to limit the movement of the movable block.

[0022] In some embodiments, the guide groove is provided with a positioning end, the positioning end has a locking position, the limiting block includes a body and a locking protrusion, the locking protrusion is connected to the body and protrudes from the surface of the body along the thickness direction of the body, and the locking protrusion is locked into the locking position by a locking manner.

[0023] Accordingly, this application also provides a processing box that can be detachably installed in the image forming apparatus as described in any of the above embodiments. The processing box includes a box body, a fixed post, and a movable guide block. The fixed post is disposed on the box body, and the movable guide block is movably disposed on the fixed post, and the movable guide block is capable of moving between a first position and a second position. When the image forming apparatus is installed into or removed from the processing box, the movable guide block engages with the first end of the movable block to drive the first end to move along the extension direction of the guide groove. During the process of the movable guide block and the first end moving together along the extension direction of the guide groove, the movable guide block and the first end can also rotate together under the guidance of the guide track groove on the movement trajectory of the second end of the movable block and the elastic force of the elastic member.

[0024] In some embodiments, the movable guide block is sleeved on the fixed post and is capable of rotating about the axial direction of the fixed post.

[0025] In some embodiments, the movable guide block includes an interconnected mounting portion and a guide portion, wherein the mounting portion has a mounting hole in the middle, and the mounting hole is rotatably mounted to the fixed column.

[0026] In some embodiments, the mounting portion is a cylinder, and the guide portion is an arc-shaped body eccentrically disposed relative to the cylinder.

[0027] In some embodiments, the fixing post is set as the shaft core of the photosensitive drum, the shaft core of the developing roller, or the positioning protrusion on the housing.

[0028] In some embodiments, the processing box is provided with the fixed post and the movable guide block at both ends, and the image forming apparatus is provided with the fixed side plate, the movable block and the elastic element on both sides respectively; when the processing box is installed into the image forming apparatus, the first force applied by the elastic element to both ends of the processing box is in balance with the pushing force to both ends of the processing box; when the processing box is removed from the image forming apparatus, the second force applied by the elastic element to both ends of the processing box is in balance with the pulling force to both ends of the processing box.

[0029] In some embodiments, the processing box includes a transmission gear, and the fixed side plate is provided with a drive gear that meshes with the transmission gear. When the processing box is installed into the image forming apparatus and in place, the processing box is pressed against the drive gear by the elastic force of the elastic member, so that the transmission gear and the drive gear are stably meshed.

[0030] The image forming apparatus of this application includes a fixed side plate, a movable block, and an elastic member. The fixed side plate has a guide groove and a guide trajectory groove. The movable block has a first end and a second end. The first end is movably disposed in the guide groove, and the second end is movably disposed in the guide trajectory groove. The elastic member is disposed on the fixed side plate and connected to the second end. When the first end is subjected to an external force, it can move along the extension direction of the guide groove. During the movement of the first end along the extension direction of the guide groove, the first end can also be flipped under the guidance of the guide trajectory groove on the movement trajectory of the second end and under the elastic force of the elastic member. Compared with related technologies, in this application, during the installation or removal of the processing box from the image forming apparatus, the processing box can cooperate with the movable block for limiting, and the flipping and sliding of the movable block can be controlled by the elastic member and the guide trajectory groove opened in the fixed side plate, so as to more smoothly install the processing box into the image forming apparatus and form a lock, or make the removal of the processing box smoother. Attached Figure Description

[0031] Figure 1 This is a partial structural schematic diagram of the image forming apparatus provided in an embodiment of this application.

[0032] Figure 2 This is an exploded view of the fixed side plate, movable block, elastic element, and limiting block provided in the embodiments of this application.

[0033] Figure 3 for Figure 2 A schematic diagram of the fixed side plate in the middle.

[0034] Figure 4 for Figure 2 A schematic diagram of the structure of the active block in the diagram.

[0035] Figure 5for Figure 2 A schematic diagram of the elastic element in the diagram.

[0036] Figure 6 for Figure 2 A schematic diagram of the limiting block in the diagram.

[0037] Figure 7 This is a schematic diagram of the structure of the processing box provided in an embodiment of this application.

[0038] Figure 8 This is a schematic diagram of the structure when the processing box provided in the embodiment of this application is installed in the main body of the image forming apparatus and in place.

[0039] Figure 9 This is a schematic diagram of the structure of the processing box provided in the embodiment of this application when it is installed in the main body of the image forming apparatus and is in the first installation state.

[0040] Figure 10 This is a schematic diagram of the structure of the processing box provided in the embodiment of this application when it is installed in the main body of the image forming apparatus and is in the second installation state.

[0041] Figure 11 This is a schematic diagram of the structure of the processing box provided in the embodiment of this application when it is installed in the main body of the image forming apparatus and is in the third installation state.

[0042] Figure 12 , Figure 13 This is a schematic diagram of the structure of the processing box provided in the embodiment of this application when it is installed in the main body of the image forming apparatus and is in the fourth installation state.

[0043] Figure 14 This is a schematic diagram of the structure when the processing box provided in the embodiment of this application is installed in the main body of the image forming apparatus and in place.

[0044] Figure 15 This is a schematic diagram of the structure when the processing box provided in another embodiment of this application is installed in the main body of the image forming apparatus and in place.

[0045] Figure 16 for Figure 15 Another perspective structural diagram of the processing box and image forming apparatus main body in the process.

[0046] Attached image labels: 1. Fixed side plate; 11. Guide groove; 111. Mounting end; 112. Positioning end; 112a. Engaging position; 113. First side surface; 114. Second side surface; 12. Guide track groove; 121. Limiting end; 122. First guide slope; 123. Second guide slope; 2. Movable block; 20a. First end; 20b. Second end; 21. Engaging part; 211. First engaging end; 212. Second engaging end; 212a. Engaging groove; 212b. Arc-shaped part; 212c. Limiting part; 212d. Opening; 213. Intermediate connecting part; 22. Mating part; 221. First mating end; 222. Second mating end; 223. Intermediate connecting section; 23. Connecting part; 23 1. First connecting end; 232. Second connecting end; 233. Intermediate section; 24. Driving part; 241. First driving end; 242. Second driving end; 243. Connecting section; 3. Elastic element; 30. Torsion spring; 30a. First fixed end; 30b. Second fixed end; 30c. Extension part; 4. First limiting element; 41. First limiting protrusion; 42. Second limiting protrusion; 43. Connecting post; 5. Limiting block; 50. Arc-shaped surface; 51. Body; 52. Engaging protrusion; 6. Driving gear; 7. Second limiting element; 100. Processing box; 101. Box body; 102. Fixed post; 103. Movable guide block; 103a. Mounting part; 103b. Guide part; 104. Transmission gear. Detailed Implementation

[0047] 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.

[0048] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0049] In the description of this specification, it should be understood that the directional terms such as "upper" and "lower" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0050] This application discloses an image forming apparatus, which can be a printer or a copier. The image forming apparatus includes a main body and a processing cartridge. The main body includes a drive unit, and the processing cartridge can be detachably installed inside the main body. The processing cartridge includes a power receiving unit and a rotating assembly. The power receiving unit can cooperate with the drive unit to receive the rotational driving force output by the drive unit on the main body, thereby driving the rotating assembly to rotate. The processing cartridge can be a toner cartridge or a toner drum.

[0051] Reference Figure 1 and Figure 2 As shown, the main body includes a fixed side plate 1, a movable block 2, an elastic element 3, and a first limiting element 4. The fixed side plate 1 has a guide groove 11 and a guide trajectory groove 12. The movable block 2 has a first end 20a and a second end 20b. The first end 20a is movably disposed in the guide groove 11, and the second end 20b is movably disposed in the guide trajectory groove 12. The first limiting element 4 and the elastic element 3 are both disposed on the fixed side plate 1. One end of the elastic element 3 cooperates with the first limiting element 4 for limiting, and the other end of the elastic element 3 is connected to the second end 20b, so that the elastic element 3 can be compressed or stretched during the movement of the movable block 2. In a preferred embodiment, the main body also includes a limiting block 5, which is disposed on the fixed side plate 1, and the limiting block 5 and the elastic element 3 are respectively located on both sides of the fixed side plate 1. The limiting block 5 is used to limit the movement of the movable block 2.

[0052] When the first end 20a is subjected to an external force, the first end 20a can move along the extension direction of the guide groove 11. During the movement of the first end 20a along the extension direction of the guide groove 11, the first end 20a can also be flipped under the guidance of the guide track groove 12 on the movement trajectory of the second end 20b and the elastic force of the elastic member 3. The aforementioned external force may refer to the force applied to the first end 20a when the processing box 100 is pushed in or pulled out during the installation of the processing box 100 into the main body.

[0053] For example, during the installation of the processing box 100 into the main body, the processing box 100 can cooperate with the movable block 2. Under the action of the user's pushing force, the processing box 100 pushes the first end 20a of the movable block 2 to move in the guide groove 11, while the elastic element 3 is compressed or stretched by the movable block 2. At the same time, under the limiting effect of the guide track groove 12 on the second end 20b of the movable block 2 and the action of the elastic element 3, the first end 20a will flip and lock the processing box 100. During the removal of the processing box 100 from the main body, the processing box 100 can cooperate with the movable block 2. Under the action of the user's pulling force, the first end 20a of the driving movable block 2 of the processing box 100 moves in the opposite direction in the guide groove 11, while the elastic element 3 is compressed or stretched by the movable block 2. At the same time, under the limiting effect of the guide track groove 12 on the second end 20b of the movable block 2 and the action of the elastic element 3, the first end 20a will flip in the opposite direction.

[0054] During the installation of the processing box 100 into the main body, the processing box 100 can cooperate with the movable block 2 for limiting, and the rotation and sliding of the movable block 2 can be controlled by the elastic element 3 and the guide track groove 12 opened on the fixed side plate 1, so that the processing box 100 can be installed into the main body more smoothly and locked; when the processing box 100 is taken out, the processing box 100 can cooperate with the movable block 2 for limiting, and the rotation and sliding of the movable block 2 can be controlled by the elastic element 3 and the guide track groove 12 opened on the fixed side plate 1, so that the processing box 100 can be taken out more smoothly.

[0055] Reference Figure 3 As shown, the guide groove 11 extends along the length of the fixed side plate 1, forming a long strip structure. The guide groove 11 has an installation end 111 and a positioning end 112 along its length. The installation end 111 has an arc-shaped inner wall, and the positioning end 112 has a locking position 112a, where the limiting block 5 can engage. The guide track groove 12 can have a polygonal structure, such as an inverted triangle, to guide the movement trajectory of the second end 20b, so that the second end 20b can drive the first end 20a to flip during movement. The installation end 111 is defined as the end of the guide groove 11 with the movable block 2 when the processing box 100 is not installed, and the positioning end 112 is defined as the end of the guide groove 11 with the movable block 2 after the processing box 100 is installed.

[0056] When the first end 20a is flipped to its initial or final position with the assistance of the elastic member 3, the elastic member 3 can apply a thrust to the first end 20a in the same direction as the external force; the initial position refers to the position of the first end 20a at the mounting end 111 and not subjected to the action of the processing box 100; the final position refers to the position of the first end 20a at the positioning end 112 along... Figure 1 The position after rotating 90 degrees clockwise.

[0057] Reference Figure 4 As shown, the movable block 2 includes a locking part 21, a mating part 22, a connecting part 23, and a driving part 24. The locking part 21 and the connecting part 23 are located on opposite sides of the fixed side plate 1. Both ends of the mating part 22 are connected to the locking part 21 and the connecting part 23, respectively, and the mating part 22 is movably accommodated within the guide groove 11. One end of the driving part 24 is connected to the connecting part 23, and the other end of the driving part 24 is connected to the elastic member 3. The driving part 24 is movably accommodated within the guide track groove 12. Both the mating part 22 and the driving part 24 have cylindrical structures, and the axial direction of the mating part 22 is parallel to the axial direction of the driving part 24. When the locking part 21 is subjected to an external force, it can drive the mating part 22 to move along the guide groove 11, and through the connecting part 23, drive the driving part 24 to move within the guide track groove 12.

[0058] During assembly, the mating part 22 can be installed into the guide groove 11 from the positioning end 112, so that the engaging part 21 is located on the first side 113 of the fixed side plate 1, the connecting part 23 is located on the second side 114 of the fixed side plate 1, and the driving part 24 is located in the guide track groove 12. Then, the elastic member 3 is placed on the fixed side plate 1, with one end of the elastic member 3 engaging and limiting the first limiting member 4, and the other end of the elastic member 3 connected to the driving part 24. At this time, the mating part 22 can move along the length direction of the guide groove 11 under the action of external force, and drive the engaging part 21 to move along the length direction of the guide groove 11. At the same time, the engaging part 21 can also flip under the limiting force of the driving part 24 by the guide track groove 12 and the elastic force of the elastic member 3.

[0059] When the engaging portion 21 is subjected to an external force, it moves along the extending direction of the guide groove 11. During this movement, the driving portion 24 moves along the movement trajectory guided by the guide track groove 12, causing the elastic member 3 to elastically deform. This allows the engaging portion 21 to rotate 90° under the guidance of the guide track groove 12 and the elastic force of the elastic member 3. For example, when the first end 20 is at the mounting end 111, if an external force is applied along... Figure 1 When a thrust is applied to the engaging part 21 in the direction of the middle arrow A1, the engaging part 21... Figure 1 The middle will move along the direction of arrow A1 and also along Figure 1 Rotate 90 degrees in the direction of arrow B; when the first end 20 is at the positioning end 112, if an external force is applied along... Figure 1 When the arrow A2 in the diagram applies a pushing force to the engaging part 21, the engaging part 21 in... Figure 1 The middle will move along the direction of arrow A2 and also along Figure 1 Rotate 90 degrees in the direction opposite to arrow B.

[0060] Continue to refer to Figure 4 As shown, the mating part 22 includes a first mating end 221, a second mating end 222, and an intermediate connecting section 223; the engaging part 21 includes a first engaging end 211, a second engaging end 212, and an intermediate connecting part 213; the connecting part 23 includes a first connecting end 231, a second connecting end 232, and an intermediate section 233; and the driving part 24 includes a first driving end 241, a second driving end 242, and a connecting section 243. The first mating end 221 and the second mating end 222 are located on both sides of the intermediate connecting section 223 and are connected to it, respectively. The intermediate connecting section 223 is located within the guide groove 11. The first engaging end 211 and the second engaging end 212 are located on both sides of the intermediate connecting part 213 and are connected to it, respectively. The first engaging end 211 is connected to the first mating end 221. The first connecting end 231 and the second connecting end 232 are located on both sides of the intermediate section 233 and connected to the intermediate section 233, respectively. The first connecting end 231 is connected to the second mating end 222. The first driving end 241 and the second driving end 242 are located on both sides of the connecting section 243 and connected to the connecting section 243, respectively. The connecting section 243 is movably disposed in the guide track groove 12. The first driving end 241 is connected to the elastic element 3, and the second driving end 242 is connected to the second connecting end 232.

[0061] In some embodiments, the second engaging end 212 is provided with an engaging groove 212a, the engaging groove 212a is provided with an opening 212d, an arc-shaped portion 212b and a limiting portion 212c, the arc-shaped portion 212b is connected to the limiting portion 212c, and the opening 212d is located between the arc-shaped portion 212b and the limiting portion 212c, forming a roughly U-shaped structure.

[0062] Continue to refer to Figure 3As shown, the guide track groove 12 is provided with a limiting end 121, a first guide slope 122, and a second guide slope 123, which are located on both sides of the limiting end 121. When the engaging part 21 is subjected to an external force along the first direction, the engaging part 21 can move in the guide groove 11 along the first direction. The driving part 24 can move from the limiting end 121 first along the first guide slope 122 in a direction away from the guide groove 11, and then along the second guide slope 123 in a direction closer to the guide groove 11. The elastic member 3 undergoes elastic deformation under the force of the driving part 24. Furthermore, during the movement of the engaging part 21 along the first direction, the engaging part 21 will flip. When the engaging part 21 flips to the first preset position, the elastic member 3 releases its elastic force, causing the engaging part 21 to flip to the final position and be subjected to a thrust in the same direction as the first direction applied by the elastic member 3. When the engaging part 21 is subjected to an external force along the second direction, the engaging part 21 can move in the guide groove 11 along the second direction. The driving part 24 can move from the limiting end 121 first along the second guide slope 123 in a direction away from the guide groove 11, and then along the first guide slope 122 in a direction closer to the guide groove 11. The elastic member 3 undergoes elastic deformation under the force of the driving part 24. Furthermore, during the movement of the engaging part 21 along the second direction, the engaging part 21 will flip. When the engaging part 21 flips to the second preset position, the elastic member 3 releases the elastic force, causing the engaging part 21 to flip back to the initial position and be subjected to a thrust in the same direction as the second direction applied by the elastic member 3.

[0063] The first direction mentioned above refers to the direction of the pushing force on the processing box 100, from the mounting end 111 to the positioning end 112. Figure 1 The first direction refers to the A1 direction; the second direction refers to the direction of the pull-out force on the processing box 100, which is the direction from the positioning end 112 to the mounting end 111. Figure 1 In the A2 direction; the first preset position refers to the engagement part 21 along Figure 1 The second preset position refers to the position of the engaging part 21 when it is rotated clockwise to the highest horizontal position. Figure 1 The position is determined by rotating the engagement part 21 counterclockwise to its highest horizontal position; the initial position refers to the position of the engagement part 21 at the mounting end 111 with the opening 212d in the same direction as the second direction, and the final position refers to the position of the engagement part 21 at the positioning end 112 with the opening in the same direction as the second direction. Figure 1 The position facing downwards.

[0064] In this embodiment, refer to Figure 5As shown, the elastic element 3 can be a torsion spring 30, which includes a first fixed end 30a and a second fixed end 30b. The first fixed end 30a is connected to the second end 20b of the movable block 2, specifically to the drive part 24 of the movable block 2. The second fixed end 30b has an extension 30c, which is engaged with the fixed side plate 1, thereby fixing the second fixed end 30b to the fixed side plate 1. In other embodiments, the elastic element 3 can also be other elastic components.

[0065] For example, the first limiting member 4 and the torsion spring 30 can be located on the same side of the fixed side plate 1, so that the second fixed end 30b of the torsion spring can be limited by the first limiting member 4. Specifically, the first limiting member 4 includes a first limiting protrusion 41, a second limiting protrusion 42, and a connecting post 43. The first limiting protrusion 41, the second limiting protrusion 42, and the connecting post 43 are staggered with each other. The second fixed end 30b is fixed to the connecting post 43, and the extension 30c is engaged between the first limiting protrusion 41 and the second limiting protrusion 42. (Refer to...) Figure 3 As shown.

[0066] Reference Figure 6 As shown, the limiting block 5 is disposed on the fixed side plate 1 and is located on the same side of the fixed side plate 1 as the connecting part 23. The limiting block 5 is used to cooperate with the connecting part 23 to limit the movement of the movable block 2. Exemplarily, the limiting block 5 includes a body 51 and a locking protrusion 52. The locking protrusion 52 is connected to the body 51 and protrudes from the surface of the body 51 along the thickness direction of the body 51. An arc-shaped surface 50 is provided at the connection between the locking protrusion 52 and the body 51. The locking protrusion 52 can be locked into the locking position 112a by locking.

[0067] During assembly, the limiting block 5 can be installed on the second side 114 of the fixed side plate 1, so that the engaging protrusion 52 is engaged in the engaging position 112a of the guide groove 11. At this time, the body 51 is located on the side of the fixed side plate 1 facing away from the engaging part 21, and the arc-shaped surface 50 of the limiting block 5 can smoothly transition with the inner wall of the guide groove 11.

[0068] Reference Figure 7 As shown, the processing box 100 includes a box body 101, a fixed post 102, and a movable guide block 103. The fixed post 102 is disposed on the box body 101 and protrudes from the surface of the box body 101. The movable guide block 103 is movably disposed on the fixed post 102 and can move between a first position and a second position. For example, the movable guide block 103 can be sleeved on the fixed post 102 and can rotate around the axial direction of the fixed post 102 between the first position and the second position. The first position refers to the position of the movable guide block 103 when it is not engaged with the engaging part 21. Figure 9The first position refers to the position of the movable guide block 103; the second position refers to the position of the movable guide block 103 after it engages with the engaging part 21 and the engaging part 21 is flipped to its final position. Figure 14 The location of the activity guide block 103 in the middle.

[0069] When the image forming apparatus is installed into or removed from the processing box 100, the movable guide block 103 cooperates with the first end 20a of the movable block 2 to drive the first end 20a to move along the extension direction of the guide groove 11. During the process of the movable guide block 103 and the first end 20a moving together along the extension direction of the guide groove 11, the movable guide block 103 and the first end 20a can also be rotated together under the guidance of the guide track groove 12 on the movement trajectory of the second end 20b of the movable block 2 and under the elastic force of the elastic member 3.

[0070] In some embodiments, the fixed post 102 may be the shaft core of the photosensitive drum or the shaft core of the developing roller, or a positioning protrusion on the surface of the housing 101 for mounting and positioning. The movable guide block 103 includes a mounting portion 103a and a guide portion 103b connected to each other. The mounting portion 103a may be a cylinder, and a mounting hole is provided in the middle of the mounting portion 103a. The mounting hole is rotatably mounted to the fixed post 102. The guide portion 103b may be an arc-shaped body eccentrically disposed relative to the cylinder. The outer contour of the arc-shaped body includes an arc surface 103c and a plane 103d connected to each other. With this configuration, during the assembly and disassembly of the processing cartridge 100, the movable guide block 103 will be subjected to a linear thrust exerted by the movable block 2 in the image forming apparatus on the arc surface 103c of the guide portion 103b. Since the guide portion 103b is eccentrically disposed relative to the cylinder, this thrust will generate a torque that rotates around the fixed post 102. This torque drives the entire movable guide block 103 to rotate automatically around the fixed post 102. Therefore, when the user disassembles or assembles the processing cartridge 100, the movable guide block 103 automatically completes complex rotational guiding actions. The eccentric arc-shaped body forms a preset, smooth cam track. During the disassembly and assembly process, the processing cartridge 100 moves strictly along the path defined by this track and is ultimately guided to the precise installation position. This ensures the installation accuracy of the processing cartridge 100, avoids jamming or misalignment, greatly simplifies the operation process, and improves the user experience. In addition, compared with the simple sliding friction in the prior art, this "rolling contact" (rotation of the movable guide block 103) or "sliding-rotation compound motion" can effectively reduce frictional resistance and wear during disassembly and assembly, and extend the service life of the processing cartridge 100 and the image forming apparatus. The plane 103d of the guide part 103b is used to fit with the limiting surface of the limiting part 212c of the engaging part 21 when it is installed in place, forming a large area of ​​surface contact, realizing reliable terminal locking and stopping, and effectively preventing the processing box 100 from loosening during operation; by utilizing the "dead point" or "self-locking" effect formed by the plane fitting, no additional locking parts (such as springs, buckles, etc.) are needed. Only through the structural innovation of the movable guide block 103 itself, extremely high locking reliability is achieved. The structure is simple and the cost is low.

[0071] In other embodiments, the main body further includes a drive gear 6, which is disposed on the fixed side plate 1 and located on the same side of the fixed side plate 1 as the engaging part 21, and the drive gear 6 is located at the positioning end 112 of the guide groove 11. The processing box 100 also includes a transmission gear 104, which is used to mesh with the drive gear 6. When the processing box 100 is installed in the image forming apparatus and in place, the processing box 100 is pressed against the drive gear 6 by the elastic force of the elastic member 3, so that the transmission gear 104 is stably meshed with the drive gear 6, so as to receive the driving force output by the main body through the drive gear 6 and the transmission gear 104, referring to... Figure 8 As shown.

[0072] Continue to refer to Figure 8 As shown, during the installation of the processing box 100 into the main body, the movable guide block 103 can cooperate with the engaging part 21 for limiting, and the rotation and sliding of the engaging part 21 are controlled by the elastic element 3 and the guide track groove 12 opened in the fixed side plate 1, so that the processing box 100 can be installed into the main body more smoothly and locked. When the processing box 100 is installed in place, the transmission gear 104 will mesh with the drive gear 6. When the processing box 100 is removed, the movable guide block 103 cooperates with the movable block 2 for limiting, and the rotation and sliding of the engaging part 21 are controlled by the elastic element 3 and the guide track groove 12 opened in the fixed side plate 1, so that the processing box 100 can be removed more smoothly.

[0073] To ensure that the processing box 100 is subjected to balanced forces at both ends during installation and disassembly, a fixed post 102 and a movable guide block 103 are respectively provided at both ends of the processing box 100. A fixed side plate 1, a movable block 2, and an elastic element 3 are respectively provided on both sides of the image forming apparatus. When the processing box 100 is installed into the image forming apparatus, the first force applied by the elastic element 3 at both ends of the processing box 100 is in balance with the pushing force at both ends of the processing box 100. When the processing box 100 is removed from the image forming apparatus, the second force applied by the elastic element 3 at both ends of the processing box 100 is in balance with the pulling force at both ends of the processing box 100.

[0074] Reference Figures 9 to 14 As shown, during the installation of the processing box 100, the movable guide block 103 is subjected to a pushing force in the direction of arrow A1. Under the action of the pushing force, the movable guide block 103 will be inserted into the engaging groove 212a of the engaging part 21 in the direction of arrow A1. During the process of the movable guide block 103 being inserted into the engaging groove 212a, the movable guide block 103 is affected by the pushing force and rotates in the direction of arrow B to match the shape of the engaging groove 212a until the shape of the movable guide block 103 and the engaging groove 212a are stably matched. (Refer to...) Figure 10 As shown; if a pushing force is continued to be applied to the processing box 100 in the direction of A1, the engaging part 21 will move in the guide groove 11 in the direction of arrow A1, the driving part 24 will move along the first guide ramp 122 in a direction away from the guide groove 11, the torsion spring 30 will begin to be compressed, and at the same time, under the limitation of the driving part 24 by the guide track groove 12, the engaging part 21 will flip in the direction of arrow B, see reference. Figure 11 As shown; a pushing force along the A1 direction continues to be applied to the processing box 100, the torsion spring continues to be compressed, the drive unit 24 rotates to the second guide ramp 123 and moves along the second guide ramp 123 toward the guide groove 11, see... Figure 12 and Figure 13Simultaneously, when the engaging part 21 flips to its highest position (first preset position), the torsion spring releases its elastic force, and the engaging part 21 instantly flips to its final position, generating a thrust in the same direction as A1. The opening 212d of the engaging groove 212a faces downward, locking the movable guide block 103. Furthermore, the force of the torsion spring 30 causes the transmission gear 104 of the processing box 100 to apply a thrust in the same direction as A1 relative to the drive gear 6 of the main body, so that the transmission gear 104 and the drive gear 6 are stably engaged. See [link to relevant documentation]. Figure 14 and Figure 8 .

[0075] Reference Figure 12 As shown, during the installation of the processing box 100, when the processing box 100 is in... Figure 12 When the device is installed, the rebound force and thrust generated by the torsion spring will produce thrust and inertia in the direction of pushing the processing box 100 in, effectively assisting the pushing of the processing box 100 and having a significant labor-saving effect on the installation of the processing box 100.

[0076] During the disassembly of the processing box 100, the movable guide block 103 is subjected to a pull-out force along the A2 direction (the A2 direction is opposite to the A1 direction). Under the action of the pull-out force, the movable guide block 103 will move in the guide groove 11 along the A2 direction, and the drive unit 24 will move along the second guide ramp 123 in a direction away from the guide groove 11. The torsion spring 30 will begin to be compressed. At the same time, under the limitation of the drive unit 24 by the guide track groove 12, the engaging part 21 will flip in a direction opposite to the B direction and continue to move towards the processing box 100. When a pull-out force is applied along the A2 direction, the torsion spring continues to be compressed. The drive unit 24 rotates to the first guide slope 122 and moves along the first guide slope 122 toward the direction close to the guide groove 11. At the same time, when the engaging part 21 flips to the top (second preset position), the torsion spring releases its elastic force. The engaging part 21 flips to the initial position instantly and generates a thrust in the same direction as A2. The opening 212d of the engaging groove 212a faces the side, and the movable guide block 103 can move out of the engaging groove 212a under the action of the pull-out force.

[0077] During the disassembly of the processing box 100, the rebound force of the torsion spring 30 and the thrust generated by the rebound will generate a thrust and inertia in the direction of pulling out the processing box 100, which will help the processing box 100 to be pushed out and has a significant labor-saving effect in disassembling the processing box 100.

[0078] This application, by providing a movable block 2 and a torsion spring 30 on the image forming apparatus side, ensures that during the installation of the processing cartridge 100, under the positioning of the movable block 2 and the pressing and releasing forces of the torsion spring 30, the pushing force and pulling force generated simultaneously at both ends of the processing cartridge 100 can achieve a force balance. Under the action of the rebound force and the pushing force generated by the rebound of the torsion spring 30, the processing cartridge 100 is removed and installed more smoothly, effectively reducing the force required for the user to install or remove the processing cartridge 100 and improving the user experience. When the engaging part 21 flips and moves downstream of the guide groove 11, the force applied by the torsion spring 30 can effectively mitigate the phenomenon of the processing cartridge 100 being pushed outwards under the force of the machine drive gear 6 during operation.

[0079] Based on the above embodiments, this application also discloses another specific implementation method. The difference between this embodiment and the above embodiments is that, referring to... Figure 15 and Figure 16 As shown, in this embodiment, the main body includes a second limiting member 7, which is disposed on the fixed side plate 1 and located on the same side of the fixed side plate 1 as the connecting part 23. The second limiting member 7 can be a protruding post. The elastic member 3 is a tension spring 31, which is located on the same side of the fixed side plate 1 as the second limiting member 7. One end of the tension spring 31 is connected to the second limiting member 7, and the other end of the tension spring 31 is connected to the second end 20b of the movable block 2, specifically to the driving part 24 of the movable block 2.

[0080] During the installation of the processing box 100, the movable guide block 103 is subjected to a pushing force in the direction of arrow A1. Under the action of the pushing force, the movable guide block 103 will be inserted into the engaging groove 212a of the engaging part 21 in the direction of arrow A1. During the process of the movable guide block 103 being inserted into the engaging groove 212a, the movable guide block 103 rotates in the direction of arrow B in accordance with the shape of the engaging groove 212a under the influence of the pushing force, until the shape of the movable guide block 103 and the engaging groove 212a are stably engaged. If the pushing force in the direction of A1 is continued to be applied to the processing box 100, the engaging part 21 will move in the guide groove 11 in the direction of arrow A1, the driving part 24 will move along the first guide slope 122 in a direction away from the guide groove 11, and the tension spring 31 will begin to be stretched under the action of the pushing force. At the same time, With the guide track groove 12 limiting the drive unit 24, the engaging part 21 will flip along arrow B and continue to apply a pushing force in the direction of A1 to the processing box 100. The tension spring continues to be stretched, and the drive unit 24 rotates to the second guide slope 123 and moves along the second guide slope 123 toward the direction close to the guide groove 11. When the engaging part 21 flips to the top (first preset position), the tension spring recovers its elastic force, and the engaging part 21 flips to the final position and generates a thrust in the same direction as A1. The opening 212d of the engaging groove 212a faces downward, locking the movable guide block 103. The force of the tension spring 31 causes the transmission gear 104 of the processing box 100 to apply a thrust in the same direction as A1 relative to the drive gear 6 of the main body, so that the transmission gear 104 meshes with the drive gear 6.

[0081] During the installation of the treatment box 100, the rebound force and the thrust generated by the tension spring 31 will produce thrust and inertia in the direction of pushing the treatment box 100 in, effectively assisting the pushing of the treatment box 100 in, and having a significant labor-saving effect on the installation of the treatment box 100.

[0082] During the disassembly of the processing box 100, the movable guide block 103 is subjected to a pull-out force along the A2 direction. Under the action of the pull-out force, the movable guide block 103 moves in the guide groove 11 along the A2 direction. The drive unit 24 moves along the second guide ramp 123 in a direction away from the guide groove 11. The tension spring 31 begins to be stretched under the pull-out force. At the same time, under the limitation of the drive unit 24 by the guide track groove 12, the engaging part 21 flips in the opposite direction to the B direction, and continues to apply force along the A2 direction to the processing box 100. With the pull-out force in direction 2, the tension spring continues to be stretched, the drive part 24 rotates to the first guide slope 122 and moves along the first guide slope 122 toward the direction close to the guide groove 11. At the same time, when the engaging part 21 flips to the top (second preset position), the tension spring 31 retracts its elastic force, the engaging part 21 flips to the initial position instantly and generates a thrust in the same direction as A2. The opening 212d of the engaging groove 212a faces the side, and the movable guide block 103 can move out of the engaging groove 212a under the action of the pull-out force.

[0083] During the disassembly of the processing box 100, the rebound force of the tension spring 31 and the thrust generated by the rebound will generate a thrust and inertia in the direction of pulling out the processing box 100, which will help the processing box 100 to be pushed out and has a significant labor-saving effect in disassembling the processing box 100.

[0084] This application, by providing a movable block 2 and a tension spring 31 on the image forming apparatus side, ensures that during the installation of the processing box 100, under the positioning of the movable block 2 and the tension and retraction forces of the tension spring 31, the pushing force and pulling force generated simultaneously at both ends of the processing box 100 can achieve a force balance. Under the action of the retraction force and the pushing force generated by the retraction of the tension spring 31, the processing box 100 is removed and installed more smoothly, effectively reducing the force required for the user to install or remove the processing box 100 and improving the user experience. When the engaging part 21 flips and moves downstream of the guide groove 11, the force applied by the tension spring 31 effectively mitigates the phenomenon of the processing box 100 being pushed outwards under the force of the machine drive gear 6 during operation.

[0085] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An image forming apparatus, characterized in that, The image forming apparatus includes: A fixed side plate, wherein the fixed side plate is provided with a guide groove and a guide trajectory groove; A movable block, the movable block having a first end and a second end, the first end being movably disposed in the guide groove, and the second end being movably disposed in the guide trajectory groove; and An elastic element is disposed on the fixed side plate and is connected to the second end. When the first end is subjected to an external force, it can move along the extension direction of the guide groove. During the process of the first end moving along the extension direction of the guide groove, the first end can also be flipped under the guidance of the guide track groove on the movement trajectory of the second end and under the elastic force of the elastic element.

2. The image forming apparatus according to claim 1, characterized in that, When the first end is flipped to its final position with the assistance of the elastic element, the elastic element can apply a thrust to the first end in the same direction as the external force.

3. The image forming apparatus according to claim 1, characterized in that, The guide track groove has a polygonal structure and is used to guide the movement trajectory of the second end so that the second end can drive the first end to flip during the movement.

4. The image forming apparatus according to any one of claims 1-3, characterized in that, The movable block includes a locking part, a mating part, a connecting part, and a driving part. The locking part and the connecting part are located on both sides of the fixed side plate, respectively. The mating part is movably accommodated in the guide groove, and the driving part is movably accommodated in the guide track groove. When the locking part is subjected to the external force, the mating part can move along the guide groove, and the driving part can be driven to move in the guide track groove through the connecting part.

5. The image forming apparatus according to claim 4, characterized in that, The driving part is connected to the elastic element. When the engaging part is subjected to the external force, it can move along the extension direction of the guide groove. During the process of the engaging part moving along the extension direction of the guide groove, the driving part moves along the movement trajectory guided by the guide track groove. The elastic element generates elastic deformation so that the engaging part can be rotated 90° under the guidance of the guide track groove on the movement trajectory of the driving part and under the elastic force of the elastic element.

6. The image forming apparatus according to claim 4, characterized in that, The mating part includes a first mating end, a second mating end, and an intermediate connecting section. The first mating end and the second mating end are respectively located on both sides of the intermediate connecting section, and the intermediate connecting section is located in the guide groove.

7. The image forming apparatus according to claim 6, characterized in that, The engaging portion includes a first engaging end, a second engaging end, and an intermediate connecting portion. The first engaging end and the second engaging end are located on both sides of the intermediate connecting portion, and the first engaging end is connected to the first mating end.

8. The image forming apparatus according to claim 7, characterized in that, The second engaging end is provided with an engaging groove, which includes an opening, an arc-shaped portion and a limiting portion. The arc-shaped portion is connected to the limiting portion, and the opening is located between the arc-shaped portion and the limiting portion.

9. The image forming apparatus according to claim 6, characterized in that, The connecting part includes a first connecting end, a second connecting end, and an intermediate section. The first connecting end and the second connecting end are located on both sides of the intermediate section. The first connecting end is connected to the second mating end, and the second connecting end is connected to the driving part.

10. The image forming apparatus according to claim 9, characterized in that, The driving unit includes a first driving end, a second driving end, and a connecting segment for connecting the first driving end and the second driving end. The first driving end is connected to the elastic element, the connecting segment is movably disposed in the guide track groove, and the second driving end is connected to the second connecting end.

11. The image forming apparatus according to claim 5, characterized in that, The guide track groove is provided with a limiting end, a first guide slope, and a second guide slope; When the engaging part is subjected to an external force along the first direction, it can move along the first direction. The driving part moves from the limiting end along the first guide slope in a direction away from the guide groove, and then moves along the second guide slope in a direction closer to the guide groove. The elastic element undergoes elastic deformation under the force of the driving part. When the engaging part is subjected to an external force along the second direction, it can move along the second direction. The driving part moves from the limiting end first along the second guide slope toward a direction away from the guide groove, and then along the first guide slope toward a direction closer to the guide groove. The elastic element undergoes elastic deformation under the force of the driving part.

12. The image forming apparatus according to claim 11, characterized in that, During the movement of the engaging part along the first direction, when the engaging part flips to the first preset position, the elastic member releases its elastic force, causing the engaging part to flip to the final position and be subjected to a thrust applied by the elastic member in the same direction as the first direction. During the movement of the engaging part along the second direction, when the engaging part flips to the second preset position, the elastic element releases its elastic force, causing the engaging part to flip back to the initial position and be subjected to a thrust applied by the elastic element in the same direction as the second direction.

13. The image forming apparatus according to any one of claims 1-3, characterized in that, The elastic element is a torsion spring, which includes a first fixed end and a second fixed end. The first fixed end is connected to the second end, and the second fixed end is fixed to the fixed side plate.

14. The image forming apparatus according to claim 13, characterized in that, The second fixed end is provided with an extension, which is snapped onto the fixed side plate.

15. The image forming apparatus according to claim 14, characterized in that, The fixed side plate is provided with a first limiting member for limiting the second fixed end of the torsion spring, and the first limiting member and the torsion spring are located on the same side of the fixed side plate.

16. The image forming apparatus according to claim 15, characterized in that, The first limiting member includes a first limiting protrusion, a second limiting protrusion, and a connecting post. The first limiting protrusion, the second limiting protrusion, and the connecting post are staggered relative to each other. The second fixed end is fixed to the connecting post, and the extension is engaged between the first limiting protrusion and the second limiting protrusion.

17. The image forming apparatus according to claim 4, characterized in that, The elastic element is a tension spring, and the image forming apparatus includes a second limiting element. The second limiting element is disposed on the fixed side plate and is located on the same side of the fixed side plate as the connecting part. One end of the tension spring is connected to the second end, and the other end of the tension spring is connected to the second limiting element.

18. The image forming apparatus according to claim 4, characterized in that, The image forming apparatus further includes a limiting block disposed on the fixed side plate and located on the same side of the fixed side plate as the connecting portion. The limiting block is used to cooperate with the connecting portion to limit the movement of the movable block.

19. The image forming apparatus according to claim 18, characterized in that, The guide groove is provided with a positioning end, the positioning end has a locking position, the limiting block includes a body and a locking protrusion, the locking protrusion is connected to the body and protrudes from the surface of the body along the thickness direction of the body, and the locking protrusion is locked into the locking position by locking.

20. A processing box, characterized in that, Detachable and installable in the image forming apparatus as described in any one of claims 1-19 The processing box includes a box body, a fixed post, and a movable guide block. The fixed post is disposed on the box body, and the movable guide block is movably disposed on the fixed post, and the movable guide block can move between a first position and a second position. When the image forming apparatus is installed into or removed from the processing box, the movable guide block engages with the first end of the movable block to drive the first end to move along the extension direction of the guide groove. During the process of the movable guide block and the first end moving together along the extension direction of the guide groove, the movable guide block and the first end can also rotate together under the guidance of the guide track groove on the movement trajectory of the second end of the movable block and the elastic force of the elastic member.

21. The processing box according to claim 20, characterized in that, The movable guide block is sleeved on the fixed column and can rotate about the axis of the fixed column.

22. The processing box according to claim 21, characterized in that, The movable guide block includes an interconnected mounting part and a guide part. The mounting part has a mounting hole in the middle, and the mounting hole is rotatably mounted on the fixed column.

23. The processing box according to claim 22, characterized in that, The mounting part is a cylinder, and the guide part is an arc-shaped body that is eccentrically positioned relative to the cylinder.

24. The processing box according to claim 20, characterized in that, The fixing post is set as the shaft core of the photosensitive drum, the shaft core of the developing roller, or the positioning protrusion on the housing.

25. The processing box according to claim 20, characterized in that, The processing box is provided with the fixed post and the movable guide block at both ends, and the image forming device is provided with the fixed side plate, the movable block and the elastic element on both sides respectively; when the processing box is installed into the image forming device, the first force applied by the elastic element at both ends of the processing box is in a balanced state with the pushing force at both ends of the processing box. When the image forming apparatus is removed from the processing box, the second force applied by the elastic member at both ends of the processing box is in balance with the pull-out force at both ends of the processing box.

26. The processing box according to claim 20, characterized in that, The processing box includes a transmission gear, and the fixed side plate is provided with a drive gear that meshes with the transmission gear. When the processing box is installed into the image forming apparatus and in place, the processing box is pressed against the drive gear by the elastic force of the elastic member, so that the transmission gear and the drive gear are stably meshed.

Images