Developing box

Abstract

The invention discloses a developing box, comprising: a box body having a first end and a second end opposite to each other in a first direction, a third end and a fourth end opposite to each other in a second direction, and a fifth end and a sixth end opposite to each other in a third direction; the developing roller is located at the third end, and the rotating axis of the developing roller extends in the first direction; the driving part is used for receiving power to drive the developing roller to rotate; the storage medium is used for storing information of the developing box, the storage medium comprises a main body, a first limited part and a bracket, the first limited part and the bracket are arranged on the main body, the storage medium is mounted on the bracket, and in the third direction, the main body and the first limited part have height difference. According to the storage medium in the scheme, the limited part is clamped and matched with the limiting part in the support, the storage medium is limited, and the storage medium can be stably installed on the support and is not prone to disengaging or generating non-preset shaking.

Description

Technical Field

[0001] The present invention relates to the field of electro-imaging technology, and particularly to a developing cartridge. Background Art

[0002] A developing cartridge is a detachable part widely used in an image forming apparatus. A storage medium is provided on the developing cartridge, and information of the developing cartridge is stored in the storage medium. When the developing cartridge is installed on the image forming apparatus, the storage medium transfers the information to the image forming apparatus so that the developing cartridge can be recognized by the image forming apparatus. In the prior art, the storage medium is installed on the developing cartridge by an adhesive method. However, the adhesion is liable to fail under the influence of time and environment, so that the storage medium cannot be stably installed on the developing cartridge, and further the storage medium cannot stably transfer information to the image forming apparatus. Summary of the Invention

[0003] The technical problem to be solved by the present application is to provide an identification component and an installation part with simple structure and stable operation.

[0004] The technical solution for solving the technical problem of the present application is: A developing cartridge, comprising:

[0005] A cartridge body having a first end and a second end oppositely arranged in a first direction, a third end and a fourth end oppositely arranged in a second direction, and a fifth end and a sixth end oppositely arranged in a third direction, wherein the first direction, the second direction and the third direction intersect with each other;

[0006] A developing roller located at the third end, and the rotation axis of the developing roller extends in the first direction;

[0007] A driving part for receiving power to drive the developing roller to rotate, located at the first end;

[0008] A storage medium storing information of the developing cartridge, the storage medium comprising a main body and a first limited part arranged on the main body;

[0009] A bracket, and the storage medium is installed on the bracket,

[0010] In the third direction, there is a height difference between the main body and the first limited part.

[0011] In some embodiments, in the third direction, the height of the first limited part is less than the height of the main body.

[0012] In some embodiments, the height of the first limited part in the third direction is 0.5-1.1 mm, and the height of the main body in the third direction is 1.3-1.9 mm.

[0013] In some embodiments, the first limited portion extends in a first direction and protrudes from the main body in a second direction, and the first limited portion is a rib structure;

[0014] The bracket includes a first limiting portion that extends in a first direction. The first limiting portion is a guide rail structure and has a guiding opening located at the starting end of the extension of the first limiting portion;

[0015] The first limited portion can be inserted into the first limiting portion through the guiding opening along the first direction.

[0016] In some embodiments, in the third direction, the width of the guiding opening is greater than the rest of the first limiting portion.

[0017] In some embodiments, the bracket further includes a second limiting portion that is farther from the end face of the first end than the first limiting portion in the first direction;

[0018] The storage medium further includes a second limited portion that can be engaged with the second limiting portion to limit the storage medium in the first direction.

[0019] In some embodiments, the second limiting portion is a groove that is recessed in the third direction;

[0020] The second limited portion is disposed on the end face of the first limited portion in the second direction and protrudes along the second direction away from the first limited portion.

[0021] In some embodiments, the second limiting portion is an elastic buckle, and the second limiting portion is provided with an abutting inclined surface.

[0022] The second limited portion is a convex block structure. When the storage medium is inserted into the first limiting portion, the second limited portion abuts against the abutting inclined surface to cause elastic avoidance of the second limiting portion. After the second limited portion passes over the abutting inclined surface, the second limiting portion deforms and recovers and engages with the second limited portion.

[0023] In some embodiments, the first limited portion and the second limited portion are located at the corner portions around the main body.

[0024] In some embodiments, the upper end face of the storage medium in the third direction is provided with an electrical contact surface, and the normal direction of the electrical contact surface intersects with the installation direction of the storage medium.

[0025] In some embodiments, the bracket has a top, and the top is the highest surface of the bracket in the third direction;

[0026] The top portion protrudes from the electrical contact surface or is flush with the electrical contact surface in the third direction.

[0027] In some embodiments, the first limited portion is a rib structure extending in the second direction, and the first limited portion is a guide rail structure extending in the second direction.

[0028] The first limited portion can be inserted into the first limited portion along the second direction.

[0029] In some embodiments, an abutment member is further included, wherein the abutment member contacts the external component and enables the box body to move.

[0030] Beneficial effects of the present invention: The storage medium of the present solution is provided with a limiting portion which engages with a limiting portion in the bracket, which has a limiting effect on the storage medium, so that the storage medium can be stably installed on the bracket and is not easy to fall off or produce non-preset shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of a developing cartridge in Embodiment 1;

[0032] Figure 2 is a schematic diagram of the structure of the transmission assembly at the first end of the box body in Example 1;

[0033] Figure 3 is an exploded view of the first end of the box body in the first embodiment;

[0034] Figure 4 is an exploded view of the second mounting portion and the storage medium in the first embodiment;

[0035] Figure 5 is a cross-sectional view of the second mounting portion and the storage medium in the first embodiment;

[0036] Figure 6 is a schematic structural diagram of the second end of the box body in the first embodiment;

[0037] Figure 7 is an exploded view of the second mounting portion and the storage medium in the second embodiment;

[0038] Figure 8 is a cross-sectional view of the second mounting portion and the storage medium in the second embodiment;

[0039] Figure 9 is an exploded view of the second mounting portion and the storage medium in the third embodiment;

[0040] Figure 10 It is a cross-sectional view of the second mounting portion and the storage medium in the third embodiment. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0042] It should be noted that the terms "first", "second", etc. are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In the present invention, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0045] In the above description, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations 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 a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0046] In the following description of directions, in one embodiment, the left - right direction in the accompanying drawings is the first direction, the front - back direction is the second direction, and the up - down direction is the third direction, and the first direction, the second direction, and the third direction are perpendicular to each other.

[0047] Embodiment 1:

[0048] As Figures 1-6 shown, this embodiment provides a developing cartridge 1, which can be detachably mounted on the drum assembly of an image forming apparatus. The developing cartridge 1 includes a cartridge body 10, a developing assembly, a transmission assembly 4, a lifting assembly, and an identification assembly.

[0049] As Figure 1 shown, the cartridge body 10 has a first end 11 and a second end 12 disposed opposite to each other in the first direction, a third end 13 and a fourth end 14 disposed opposite to each other in the second direction, and a fifth end and a sixth end disposed opposite to each other in the third direction. A handle 141 is provided on the cartridge body 10, and the handle 141 is located at the fourth end 14. The transmission assembly 4 is located at the first end 11 and is used to receive the power output by the image forming apparatus and transmit the power to the components in the developing assembly. A first cover 31 is detachably and fixedly mounted at the first end 11, and the first cover 31 at least covers part of the transmission assembly. The first cover 31 can protect the transmission assembly, and a second cover 121 is detachably and fixedly mounted at the second end 12.

[0050] The developing assembly includes a developing roller 131, a stirring frame (not shown in the figure), and a powder feeding roller (not shown in the figure). The developing roller 131, the stirring frame, and the powder feeding roller are rotatably supported by the first end 11 and the second end 12. The rotation axes of the developing roller 131, the stirring frame, and the powder feeding roller all extend in the first direction. The powder feeding roller is disposed adjacent to the developing roller 131, and the powder feeding roller transfers the developer to the developing roller 131, and the developing roller 131 transfers the developer to the photosensitive drum of the drum assembly. The stirring frame is used to stir the developer in the developing chamber to cause friction of the developer and prevent the developer from caking. The developing assembly further includes a blade 132, and the blade 131 contacts the developing roller 131 to control the thickness of the developer layer on the developing roller 131.

[0051] As Figures 2-3 shown, the first end 11 is provided with a transmission assembly 4. The transmission assembly 4 includes a driving part rotatably mounted on the first end 11, and the rotation axis of the driving part extends in the first direction. The driving part includes a driving gear 402 and a power receiving part 401 integrally formed coaxially. The driving gear 402 is closer to the first end 11 than the power receiving part 401 in the first direction. The power receiving part 401 is used to be coupled with the power output shaft on the image forming apparatus to receive the power output by the image forming apparatus.

[0052] The transmission assembly 4 further includes a developing gear 41, a powder feeding gear 42, an idle gear 43, and a stirring gear 44. Both the developing gear 41 and the powder feeding gear 42 are engaged with the driving gear 402 to receive power and rotate. The idle gear 43 is engaged with the driving gear 402 and the stirring gear 44 to transfer the power from the driving gear 402 to the stirring gear 44, causing the stirring gear 44 to rotate. The developing gear 41 is coaxially and fixedly installed at one end of the developing roller 131 close to the first end 11 to drive the developing roller 131 to rotate. The powder feeding gear 42 is coaxially and fixedly installed at one end of the powder feeding roller close to the first end 11 to drive the powder feeding roller to rotate. The stirring gear 47 is coaxially and fixedly installed at one end of the stirring frame close to the first end 11 to drive the stirring frame to rotate. In this embodiment, the number of gears and the meshing relationship of the transmission assembly are not limited and can be set according to actual needs.

[0053] As Figure 1 , Figure 3 and Figure 4 shown, the first end 11 is provided with a first mounting portion 32 and a second mounting portion 33. Preferably, the first mounting portion 32 and the second mounting portion 33 are provided on the first cover 31. The first mounting portion 32 and the second mounting portion 33 are arranged adjacent to each other in the second direction, and in the second direction, the first mounting portion 32 is located behind the second mounting portion 33. The height of the first mounting portion 32 in the third direction is lower than that of the second mounting portion 33, that is, the top of the first mounting portion 32 is lower than the top of the second mounting portion 33. The first mounting portion 32 is hollow, its lower end has an opening, and its side wall has a guiding groove extending in the third direction.

[0054] As Figure 1 , Figure 3 and Figure 4As shown, the second mounting portion 33 is in the shape of a groove recessed in the third direction. The upper end of the second mounting portion 33 is open, and the right end of the second mounting portion 33 also has an opening, that is, the second mounting portion 33 is generally a semi-surrounding structure. The second mounting portion 33 includes a limiting portion for limiting other components (the components can be part of the identification component). The limiting portion includes a first limiting portion 331 and a second limiting portion 332. In the first direction, the first limiting portion 331 is closer to the end face of the first end 11 than the second limiting portion 332, that is, the first limiting portion 331 is located on the left side of the second limiting portion 332. The first limiting portion 331 is located inside the second mounting portion 33, specifically on the inner wall of the second mounting portion 33 in the second direction. The first limiting portion 331 is a guide rail structure, and the first limiting portion 331 is formed by two convex ribs extending in the first direction and arranged opposite to and spaced from each other in the third direction. The first limiting portion 331 extends in the first direction, and further extends from right to left in the first direction. The starting end (i.e., the right end) of its extension is the guiding opening 3311. The width of the guiding opening 3311 in the third direction is preferably greater than the rest of the first limiting portion 331. A guiding inclined surface extending in the third direction and the first direction is provided at the guiding opening 3311, so that the width of the guiding opening 3311 in the third direction gradually decreases along the direction from right to left, forming a shape similar to a flared opening, which is convenient for guiding other components (the components can be part of the identification component) into the first limiting portion 331. The first limiting portion 331 can limit the components in the third direction. The guiding opening 3311 of the first limiting portion 331 is generally located at the middle position of the second mounting portion 33 in the first direction. The second limiting portion 332 is in the shape of a groove recessed in the third direction. The second limiting portion 332 can limit the components in the first direction. The second limiting portion 332 is provided on the side wall of the second mounting portion 33 in the second direction and is formed by being recessed downward from the top of the side wall. Taking one first limiting portion 331 and one second limiting portion 332 as a set of mounting components, preferably two sets of mounting components are provided in this embodiment, which are respectively located at both ends of the second mounting portion 33 in the second direction and are symmetrically arranged. In other embodiments, the structure of the second mounting portion 33 can be set according to actual needs.

[0055] As Figure 5 shown, the second mounting portion 33 further includes a top portion 333. The top portion 333 is a plane, and the top portion 333 is the highest surface of the second mounting portion 33. The top portion 333 is located above the first limiting portion 331.

[0056] As Figure 1 、 Figures 3-5As shown, the identification component is detachably mounted on the second mounting portion 33. That is, in this embodiment, the second mounting portion 33 can be regarded as a bracket for mounting the identification component. The identification component preferably includes a storage medium 34, an energy supply member 351, and a conductive member 352. In some other embodiments, the identification component may only include the storage medium 34. The storage medium 34 stores information of the developing cartridge 1. When the developing cartridge 1 is installed in the image forming apparatus, the storage medium 34 transfers the information of the developing cartridge 1 to the image forming apparatus, so that the image forming apparatus can identify the developing cartridge 1 to ensure that the developing cartridge 1 can work properly in the image forming apparatus.

[0057] As Figure 1 , Figures 3-5 shown, the storage medium 34 includes a main body 341, a first limited portion 342, a second limited portion 343, and an electrical contact surface 344. The main body 341 is generally a rectangular substrate. The length direction of the main body 341 extends along the first direction, the width direction extends along the second direction, and the height (thickness) direction extends along the third direction. In some other embodiments, the length direction of the main body 341 may also extend along the second direction, and the width direction may extend along the first direction. The main body 341 is used to store information of the developing cartridge 1. The electrical contact surface 344 is electrically connected to the main body 341, which can be a direct contact electrical connection or an electrical connection through an intermediate member. In this embodiment, preferably, the electrical contact surface 344 is arranged on the upper end surface of the main body 341, and the electrical contact surface 344 directly contacts the electrical contact pin in the image forming apparatus to transfer the information in the main body 341 to the image forming apparatus. In this embodiment, preferably, three electrical contact surfaces 344 are arranged, and the three electrical contact surfaces 344 are arranged along the first direction. The orientation (i.e., the normal direction) of the electrical contact surface 344 is parallel to the third direction. The storage medium 34 can be mounted on the second mounting portion 33 along the first direction, that is, the normal direction of the electrical contact surface 344 intersects with the mounting direction of the storage medium 34. The first limited portion 342 extends in the first direction. The first limited portion 342 protrudes in the second direction relative to the main body 341 and is recessed in the third direction. That is, the first limited portion 342 is a rib structure located at the end of the main body 341 in the second direction, and there is a height difference between the first limited portion 342 and the main body 341 in the third direction. The height of the first limited portion 342 in the third direction is less than the height of the main body 341 in the third direction. Further, the height (thickness) of the first limited portion 342 in the third direction is half of the height (thickness) of the main body 341 in the third direction. In this embodiment, preferably, the height of the first limited portion 342 in the third direction is 0.8 mm, and the height of the main body 341 in the third direction is 1.6 mm. Considering the possible errors in actual production, the height of the first limited portion 342 in the third direction is 0.5 - 1.1 mm, and the height of the main body 341 in the third direction is 1.3 - 1.9 mm, which can be set according to the actual situation.

[0058] The second limited part 343 protrudes from the first limited part 342 in the second direction, that is, the second limited part 343 is arranged on the end surface of the first limited part 342 in the second direction and extends / protrudes in the direction away from the first limited part 342 along the second direction. The second limited part 343 is preferably a block-shaped member and is arranged near the right end of the first limited part 342 in the first direction. Taking one first limited part 342 and one second limited part 343 as a group of installed components, this embodiment preferably has two installed components, which are respectively located at both ends of the main body 341 in the second direction and are symmetrically arranged. In other embodiments, the structure of the storage medium 34 can be set according to actual needs.

[0059] The first limited part 342 of the storage medium 34 is gradually inserted into the first limiting part 331 from right to left through the guiding opening 3311. During the insertion process, the first limited part 342 is guided by the first limiting part 331. The height of the first limited part 342 in the third direction matches the height of the first limiting part 331 in the third direction, so that the first limiting part 331 stably supports the storage medium 34, and the first limiting part 331 limits the storage medium 34 in the third direction to prevent the storage medium 34 from disengaging from the second installation part 33 in the third direction. When the first limited part 342 is completely or mostly located on the first limiting part 331, the second limited part 343 is clamped in the second limiting part 332, and the second limiting part 332 limits the storage medium 34 in the first direction to prevent the storage medium 34 from disengaging from the second installation part 33 in the first direction. It can be known that both the first limiting part 331 and the second limiting part 332 have a limiting effect on the storage medium 33 in the second direction. Therefore, the storage medium 34 can be stably installed on the second installation part 33 and will not disengage or produce non-preset shaking due to the action of external forces. Non-preset shaking can be understood as shaking that is not conducive to the storage medium 34 transmitting information to the image forming device.

[0060] In some embodiments, the storage medium 34 is installed on the second installation part 33 along the second direction, that is, the extending direction of the first limiting part 331 (rail structure) is the second direction, and the first limited part 342 (rib structure) is located at the end of the main body 341 in the first direction and extends along the second direction.

[0061] In other embodiments, it can also be that the storage medium 34 is provided with a limited groove, and the second installation part 33 is provided with a limiting protrusion.

[0062] The energy supply member 351 is preferably a battery, or it can also be other energy-providing media. The energy supply member 351 is used to supply electrical energy to the storage medium 34 so that the storage medium 34 can stably transfer information to the image forming apparatus. The conductive member 352 is preferably a steel sheet. The conductive member 352 is used to connect the energy supply member 351 and the storage medium 34 so that the electrical energy in the energy supply member 351 can be stably transferred to the storage medium 34. In addition, the conductive member 352 can also prevent the energy supply member 351 from shaking within the second mounting portion 33. In some other embodiments, the conductive member may not be provided, and the energy supply member 351 can directly transfer electrical energy to the storage medium 34.

[0063] As Figure 3 shown, in this embodiment, the lifting assembly is movably supported by the first mounting portion 32. The lifting assembly includes a contact member 361 and an elastic member 362. The contact member 361 is a slider-shaped member that is slidably disposed within the first mounting portion 32 and can move relative to the first mounting portion 32 in the third direction. An elastic buckle is provided on the contact member 361, and the elastic buckle engages with the guiding groove on the side wall of the first mounting portion 32, so that it can move in the third direction and will not disengage from the first mounting portion 32. The elastic member 362 is preferably a compression spring, or it can also be other elastic media. The elastic member 362 can be compressed and extended in the third direction. The elastic member 362 is located within the first mounting portion 32, one end thereof abuts against the first mounting portion 32, and the other end abuts against the top of the contact member 361. The elastic member 362 is configured to keep the contact member 361 in a state where the lower end extends out of the lower opening of the first mounting portion 32 when no other external force is applied. During the process of installing the developing cartridge 1 into the image forming apparatus, the contact member 361 abuts against a component (external component) within the image forming apparatus and moves upward relative to the first mounting portion 32 in the third direction. The elastic member 362 is compressed and stores elastic force. The elastic member 362 transfers the upward elastic force to the first end 11, causing the entire first end 11 to move upward. Thus, when the developing cartridge 1 is completely installed within the image forming apparatus, the electrical contact surface 344 of the storage medium 34 can stably contact the electrical contact pin. In one embodiment, the contact member is an elastic member that contacts the external component.

[0064] It can be known that, as Figure 5 shown, in this embodiment, the height by which the top 333 of the second mounting portion 33 exceeds the electrical contact surface 344 of the storage medium 34 in the third direction is not greater than 2 mm, and further not greater than 1 mm. Preferably, in this embodiment, they are flush. If the top 333 of the second mounting portion 33 exceeds the electrical contact surface 344 too much in the third direction, the top 333 will abut against a component within the image forming apparatus, thereby restricting the distance by which the first end 11 moves upward in the third direction under the action of the elastic member 362, so that the electrical contact surface 344 cannot stably contact the electrical contact pin, resulting in the information within the storage medium 34 not being able to be transferred to the image forming apparatus.

[0065] As Figure 3 and Figure 6 shown, the developing cartridge 1 further includes a first pushing member 111 located at the first end 11 and a second pushing member 122 located at the second end 12. The two are used to receive the pushing force applied by the drum assembly, so that the developing roller 131 is in close contact with the photosensitive drum.

[0066] As Figure 6 shown, the second cover 121 is detachably and fixedly installed at the second end 12. The second cover 121 protects the second end 12 and has a sealing function in this embodiment. An electrode 123 is further provided at the second end 12. The electrode 123 is used to receive the voltage output by the image forming device. The electrode 123 is electrically connected to the developing roller 131 and the powder feeding roller to transfer the voltage to the developing roller 131 and the powder feeding roller, so that the developing roller 131 and the powder feeding roller are charged to adsorb the developer.

[0067] Embodiment 2:

[0068] Except for special instructions, the structure of the developing cartridge in this embodiment is the same as that in Embodiment 1. The main difference in this embodiment is that the structures of the limiting portion and the storage medium 34 are different.

[0069] As Figure 7 and Figure 8 shown, the limiting portion includes a second limiting portion 334 and a first limiting portion 335. The second limiting portion 334 and the first limiting portion 335 are located at the corners around the second mounting portion 33 and are respectively located at the two ends of the second mounting portion 33 in the first direction. Further, the second limiting portion 334 is located at the right end of the second mounting portion 33 in the first direction, and the first limiting portion 335 is located at the left end. The second limiting portion 334 is an elastic buckle, and in this embodiment, it is preferably a cantilever-shaped elastic buckle (the cantilever extends upward, and the upper end of the cantilever is the buckle portion). It has a certain elastic force. An abutting inclined surface 3341 (provided on the buckle portion) is provided on the second limiting portion 334. The abutting inclined surface 3341 is inclined with respect to the first direction and the third direction. The abutting inclined surface 3341 extends leftward in the first direction and downward in the third direction. When the abutting inclined surface 3341 is stressed, the second limiting portion 334 deforms (the upper end swings away from the first end 11). The second limiting portion 334 has a first opening facing left in the first direction (i.e., facing the first end 11), and the first opening is located below the abutting inclined surface 3341.

[0070] In this embodiment, the first limiting part 335 is preferably provided with two and arranged at intervals in the second direction. That is, one first limiting part 335 is located at the left front corner of the second mounting part 33, and the other first limiting part 335 is located at the left rear corner of the second mounting part 33. The first limiting part 335 is a rail-shaped card slot. The first limiting part 335 is preferably provided with a guiding inclined surface 3351. The guiding inclined surface 3351 is inclined relative to the first direction and the third direction. The guiding inclined surface 3351 extends rightward in the first direction and downward in the third direction. The first limiting part 335 has a horn-shaped guiding opening facing right (i.e., away from the first end 11) in the first direction, and the guiding opening is located below the guiding inclined surface 3351.

[0071] As Figure 7 and Figure 8 shown, a main body 341, an electrical contact surface 344, a second limited part 345, and a first limited part 346 are provided on the storage medium 34. The second limited part 345 and the first limited part 346 are convex block structures recessed relative to the main body 341 in the third direction. The second limited part 345 and the first limited part 346 are located at the corners of the main body 341 and are respectively located at the two ends of the main body 341 in the first direction. Further, the second limited part 345 is located at one end of the main body 341 away from the first end 11 in the first direction, and the first limited part 346 is located at the other end. The first limited part 346 is preferably provided with two and arranged in the second direction.

[0072] As Figure 7 and Figure 8 shown, when the storage medium 34 is installed on the second mounting part 33, the second limiting part 346 is first guided by the guiding inclined surface 3351 and installed on the first limiting part 335 through the guiding opening. Then, the end of the storage medium 34 away from the first end 11 in the first direction is pressed downward, so that the second limited part 345 abuts against the abutting inclined surface 3341, causing the second limiting part 334 to deform and move away from the first end 11 to make way. After the second limited part 345 crosses the abutting inclined surface 3341, it is located within the first opening. The second limiting part 334 elastically deforms and recovers to clamp the second limited part 345 to keep it within the first opening. The second limiting part 334 and the first limiting part 335 limit the storage medium 34 in the first direction, the second direction, and the third direction, so that the storage medium 34 is stably installed on the second mounting part 33.

[0073] Embodiment Three:

[0074] Except as otherwise specified, the structure of the developing cartridge in this embodiment is the same as that in Embodiment One. The main difference in this embodiment is that the structure of the second limiting part on the second mounting part 33 is different.

[0075] As Figure 9and Figure 10 As shown in Figure 10 , in this embodiment, the limiting part includes a first limiting part 331 and a second limiting part 336. The second limiting part 336 is preferably an elastic buckle, and in this embodiment, it is preferably a cantilever-shaped elastic buckle. The cantilever of the elastic buckle extends to the right, and the right end of the cantilever (the end far from the first end 11) is the buckling part. An abutting inclined surface 3361 (provided on the buckling part) is provided on the second limiting part 336. The abutting inclined surface 3361 is inclined with respect to the first direction and the second direction. The abutting inclined surface 3361 extends leftward along the first direction and extends backward along the second direction. The second limiting part 336 is arranged on a side wall of the second mounting part 33 in the second direction.

[0076] As Figure 9 shown in Figure 9 , the second limited part 347 is a convex structure. The second limited part 347 is arranged at the end of the main body 341 in the second direction and protrudes in the direction away from the main body 341. In the third direction, the second limited part 347 is located above the first limited part 342 (rib structure). In the second direction, the second limited part 347 does not protrude beyond the first limited part 342. Further, a second abutting inclined surface 3471 is provided at the left end of the second limited part 347. The second abutting inclined surface 3471 is inclined with respect to the first direction and the second direction. Specifically, the second abutting inclined surface 3471 extends leftward along the first direction and extends backward along the second direction. Setting the second abutting inclined surface 3471 to abut against the abutting inclined surface 3361 makes it easier to push and press the second limiting part 336 to deform.

[0077] As Figure 9 and Figure 10 shown in Figure 9 and Figure 10 , during the process of installing the second mounting part 33 on the storage medium 34, the first limited part 342 is first installed on the first limiting part 331 along the first direction. The second abutting inclined surface 3471 of the second limited part 347 abuts against the abutting inclined surface 3361, causing the second limiting part 336 to elastically deform forward to avoid. After the second limited part 347 crosses the abutting inclined surface 3361, the elastic deformation of the second limiting part 336 is restored and it is clamped at the right end of the second limited part 347 to limit the second limited part 347. In this embodiment, the first limiting part 331 limits the storage medium 34 in the second direction and the third direction, and the second limiting part 336 limits the storage medium 34 in the first direction, so that the storage medium 34 is stably installed on the second mounting part 33.

[0078] It can be known that the structures of the second mounting part 33 and the storage medium 34 can be combined and set according to the above embodiments.

[0079] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A developing box, comprising: The box body has a first end and a second end opposite to each other in a first direction, a third end and a fourth end opposite to each other in a second direction, and a fifth end and a sixth end opposite to each other in a third direction, wherein the first direction, the second direction and the third direction intersect each other; a developing roller, located at the third end, wherein a rotation axis of the developing roller extends in a first direction; A driving part, used for receiving power to drive the developing roller to rotate, and located at the first end; A storage medium for storing information of the developing box, wherein the storage medium comprises a main body and a first limited portion disposed on the main body; a bracket, the storage medium being mounted on the bracket, It is characterized in that, in the third direction, there is a height difference between the main body and the first limited portion.

2. The developing cartridge according to claim 1, characterized in that: In the third direction, the height of the first limited portion is smaller than the height of the main body.

3. The developing cartridge according to claim 2, characterized in that: The height of the first limited portion in the third direction is 0.5-1.1 mm, and the height of the main body in the third direction is 1.3-1.9 mm.

4. The developing cartridge according to claim 1, wherein: The first limited portion extends in a first direction and protrudes from the main body in a second direction, and the first limited portion is a rib structure; The bracket includes a first limiting portion, the first limiting portion extends in a first direction, the first limiting portion is a guide rail structure and has a guide opening, and the guide opening is located at a starting end of the extension of the first limiting portion; The first limited portion can be inserted into the first limiting portion along the first direction through the guide opening.

5. The developing cartridge according to claim 4, characterized in that: In the third direction, the width of the guide opening is greater than the remaining portion of the first limiting portion.

6. The developing cartridge according to claim 4, characterized in that: The bracket further comprises a second limiting portion, the second limiting portion being further away from the end surface of the first end than the first limiting portion in the first direction; The storage medium further includes a second limited portion, and the second limited portion can be engaged with the second limiting portion to limit the storage medium in a first direction.

7. The developing cartridge according to claim 6, wherein: The second limiting portion is in the shape of a groove recessed in the third direction; The second limited portion is disposed on an end surface of the first limited portion in the second direction, and protrudes along the second direction toward a direction away from the first limited portion.

8. The developing cartridge according to claim 6, wherein: The second limiting portion is an elastic buckle, and the second limiting portion is provided with an abutting inclined surface. The second limited portion is a convex block structure. When the storage medium is inserted into the first limited portion, the second limited portion abuts against the abutting slope to make the second limited portion elastically avoid. After the second limited portion passes over the abutting slope, the second limited portion recovers its deformation and engages with the second limited portion.

9. The developing cartridge according to claim 6, wherein: The first limited portion and the second limited portion are located at corners around the main body.

10. The developing cartridge according to claim 1, wherein: The storage medium is provided with an electrical contact surface on the upper end surface in the third direction, and the normal direction of the electrical contact surface intersects with the installation direction of the storage medium.

11. The developing cartridge according to claim 10, characterized in that: The bracket has a top, and the top is the highest surface of the bracket in the third direction; The top portion protrudes from the electrical contact surface or is flush with the electrical contact surface in the third direction.

12. The developing cartridge according to claim 1, characterized in that: The first limited portion is a rib structure extending in the second direction, the first limiting portion is a guide rail structure extending in the second direction, and the first limited portion can be inserted into the first limiting portion along the second direction.

13. The developing cartridge according to claim 1, wherein: An abutment member is also included, the abutment member contacts the external component and enables the box body to move.

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