Developing cartridge and image forming apparatus

Abstract

The application provides a developing box and an imaging device, wherein the front end of the box body is provided with a contact fulcrum part, the rear end is provided with a first limiting part and an energy storage part; the connecting body is provided with a body, the body is provided with a second limiting part and a carrier, the second limiting part and the carrier are provided with a first guide part, the carrier is provided with a second guide part, and the second guide part is more forward than a terminal element installed on the carrier in the installation direction; in the installation process of the developing box, the second guide part slides in contact with the cavity wall of the inner cavity, the inner cavity is guided to slide in the first guide part, the free end of the energy storage part is in abutment with the cavity wall of the inner cavity to compress the energy storage; when the developing box is installed in place, the energy storage part is elongated to release energy, so that the developing box rotates with the contact fulcrum part as the fulcrum, and the first limiting part can be in contact with the cavity wall of the inner cavity; the developing box is cleverly structured, is convenient, smooth and labor-saving to install / take out the machine, the terminal element is stable in contact with the stylus of the imaging device, and the printing use effect is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printing consumables, and particularly relates to a developing cartridge and an imaging device. BACKGROUND

[0002] The existing developing cartridge is generally provided with a chip on the cartridge body, and the chip is mainly used for recording basic information of the developing cartridge, such as a model of an imaging device to which the developing cartridge is applicable, a printing number, a carbon powder reserve remaining amount and the like. When the developing cartridge is installed into the imaging device, chip contacts arranged on the surface of the chip can be in contact with stylus of the imaging device to realize data communication.

[0003] The existing developing cartridge is provided with a chip holder at a side end, the chip holder is provided with a chip at the top, and the bottom of the chip holder is provided with a specific push block structure. The push block structure needs to be matched with the installation slot of the imaging device one by one, so that the push block structure does not interfere with the installation slot of the imaging device during the installation and removal of the developing cartridge in the imaging device. When the developing cartridge is installed into the imaging device, the push block structure is lifted by the installation slot of the imaging device to make the chip of the chip holder contact the stylus of the imaging device.

[0004] However, the existing technology has the following technical defects: the bottom of the chip holder needs to be provided with a specific push block structure, the structure is complex, and the push block structure needs to be matched with the installation slot of the imaging device one by one, which requires high setting precision. It is easy to cause interference and block of the push block structure and the installation slot of the imaging device, and it is easy to cause poor contact between the chip and the stylus of the imaging device, which finally leads to failure of the developing cartridge to be installed into the imaging device and printing use. SUMMARY

[0005] In order to overcome the defects of the prior art, the purpose of the present application is to provide a developing cartridge and an imaging device. The developing cartridge has a clever structure, is convenient, smooth and labor-saving to install and remove the imaging device, and the terminal element is in stable contact with the stylus of the imaging device, so that the printing use effect is good.

[0006] The application provides a developing box connected with a photosensitive drum box body, installed in an inner cavity of an imaging device, comprising a box body and a terminal part, the box body is provided with a contact fulcrum part at a front end along an installation direction, a first limiting part and an energy storage member at a rear end, one end of the energy storage member is fixedly connected with the box body, and the other end is a free end; the terminal part is arranged at a side end of the box body, the terminal part comprises a connecting body, a main body protruding along a first direction, a second limiting part and a carrier body protruding along a second direction, and a first guide part is arranged between the second limiting part and the carrier body in the first direction, a terminal element is installed on the carrier body, the carrier body is provided with a second guide part, and the second guide part is more forward than the terminal element in the installation direction; wherein, during installation of the developing box, the second guide part slides in contact with a cavity wall of the inner cavity, a muscle and bone of the inner cavity guides sliding in the first guide part, and the free end of the energy storage member abuts against the cavity wall of the inner cavity to compress energy storage; when the developing box is installed in place, the energy storage member is elongated to release energy, so that the developing box rotates around the contact fulcrum part, and the first limiting part can be in contact with the cavity wall of the inner cavity; wherein, the first direction intersects the installation direction of the developing box, and the second direction intersects the first direction and the installation direction of the developing box.

[0007] In a preferred embodiment of the application, during removal of the developing box, the developing box reversely rotates around the contact fulcrum part, the free end of the energy storage member abuts against the cavity wall of the inner cavity to compress energy storage, the first limiting part is out of contact with the cavity wall of the inner cavity, and the muscle and bone of the inner cavity guides sliding in the first guide part in the reverse direction of the installation direction.

[0008] In a preferred embodiment of the application, the second guide part is provided with a guide slope, an extension line of the guide slope intersects a terminal surface of the terminal element to form an acute angle, and the terminal surface is parallel to an end surface of the free end of the energy storage member or intersects the end surface to form an acute angle of not more than 10°.

[0009] In a preferred embodiment of the application, in the first direction, the carrier body is arranged more forward than the second limiting part.

[0010] In a preferred embodiment of the application, the second limiting part is provided with a first guide branch in the first direction, and the carrier body is provided with a second guide branch in the reverse direction of the first direction.

[0011] In a preferred embodiment of the application, the first limiting part and the energy storage member are closer to the terminal part than the contact fulcrum part.

[0012] In a preferred embodiment of the present application, the contact fulcrum portion, the terminal portion and the energy storage member form a triangular positional relationship as viewed from the first direction, and the contact fulcrum portion, the terminal portion and the first limiting portion form a triangular positional relationship.

[0013] In a preferred embodiment of the present application, the contact fulcrum portion, the terminal portion and the energy storage member form a triangular positional relationship as viewed from the second direction, and the contact fulcrum portion, the terminal portion and the first limiting portion form a triangular positional relationship.

[0014] In a preferred embodiment of the present application, the cartridge body is provided with M energy storage members along the first direction, and the M energy storage members are arranged on both sides of the center line of the cartridge body, wherein M = 2n, n is a natural number and n > 0.

[0015] The present application also provides an imaging device comprising the developing cartridge as described above.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The developing cartridge is installed in the inner cavity of the imaging device for printing after being connected with the photosensitive drum cartridge body. The structure of the developing cartridge is ingenious. During the installation of the developing cartridge, the operator pushes the developing cartridge, the cartridge body is subjected to the extrusion force of the inner cavity of the imaging device, the developing cartridge is rotated forward with the contact fulcrum portion as the fulcrum, the free end of the energy storage member abuts against the cavity wall of the inner cavity to compress the energy storage, at the same time, the second guide portion slides in contact with the cavity wall of the inner cavity, the ribs of the inner cavity slide in the first guide portion to guide the developing cartridge to slide into the inner cavity, so that the developing cartridge is smoothly installed into the imaging device. When the developing cartridge is installed in place, the energy storage member is elongated to release energy, the developing cartridge is rotated reversely with the contact fulcrum portion as the fulcrum, the terminal element of the terminal portion stably contacts the stylus of the imaging device, and the first limiting portion can contact the cavity wall of the inner cavity to ensure the contact force of the terminal element and the stylus of the imaging device, so as to ensure the printing effect of the imaging device and the good printing quality. During the removal of the developing cartridge, the operator pulls the developing cartridge away from the inner cavity of the imaging device, the cartridge body is subjected to the extrusion force of the inner cavity of the imaging device, the free end of the energy storage member abuts against the cavity wall of the inner cavity to compress the energy storage, so that the developing cartridge is rotated forward with the contact fulcrum portion as the fulcrum, the terminal element of the terminal portion is separated from the stylus of the imaging device, the first limiting portion is separated from the cavity wall of the inner cavity, and the ribs of the inner cavity slide in the first guide portion in the reverse direction of the installation direction to guide the developing cartridge to slide out of the inner cavity, so that the developing cartridge is smoothly removed from the imaging device.

[0018] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or can be learned by practice of the application. The objects and other advantages of the present application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Structure diagram of the developing cartridge (terminal element hidden) provided by the embodiment of the present application;

[0020] Figure 2 Enlarged view of A in Figure 1

[0021] Figure 3 Structure diagram of another view of the developing cartridge (terminal element hidden) provided by the embodiment of the present application;

[0022] Figure 4 Partial exploded view of the developing cartridge (terminal element hidden) provided by the embodiment of the present application;

[0023] Figure 5 Structure diagram of the side end of the developing cartridge (edge cover hidden) provided by the embodiment of the present application;

[0024] Figure 6 Structure diagram of the connecting body of the terminal part provided by the embodiment of the present application;

[0025] Figure 7 Structure diagram of another view of the connecting body of the terminal part provided by the embodiment of the present application;

[0026] Figure 8 Structure diagram of yet another view of the connecting body of the terminal part provided by the embodiment of the present application.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 100 - developing cartridge;

[0029] 10 - cartridge main body, 10a - mounting groove, 10a-1 - straight sliding groove, 11 - contact fulcrum part, 12 - first limiting part, 13 - energy storage member, 131 - free end, 131a - end face, 131b - guide column, 132 - elastic part;

[0030] 20 - terminal part, 21 - terminal element, 22 - connecting body, 221 - main body, 2211 - second limiting part, 22111 - first guide branch, 2212 - carrier, 22121 - second guide part, 22121a - guide slope, 22122 - second guide branch, 22123 - third guide part, 2213 - first guide part; ​

[0031] 30 - first direction;

[0032] 40 - second direction;

[0033] 50 - forward direction;

[0034] 60 - reverse direction; DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail with reference to the drawings and examples, so that the application can be understood as how to solve the technical problems and achieve the technical effects by applying technical means. It should be noted that these specific descriptions are only to make those skilled in the art more easily and clearly understand the present application, and are not a limiting interpretation of the present application; for example, the first, second mentioned in the embodiments of the present application are not limited, but only for the sequence number of expressing a plurality of same or similar devices, mechanisms, and those skilled in the art can re-adjust these sequence numbers in order to facilitate the expression or technical solution arrangement process; and the alternative scheme of part of the mechanism is described in different embodiments, which can also be applied to other same or similar devices, mechanisms; and as long as there is no conflict, each embodiment in the present application and each feature in each embodiment can be combined, and the technical solution formed is within the protection scope of the present application.

[0036] The technical solutions of the present application will be described in detail below with reference to the drawings and specific examples: EMBODIMENT

[0037] Referring to Figures 1-8 The present embodiment provides a developing box 100, which belongs to the technical field of printing consumables. The developing box 100 is connected with a photosensitive drum box body (not shown) and then installed in the inner cavity of an image forming device for printing use. Specifically, the developing box 100 includes a box main body 10 and a terminal portion 20. The box main body 10 is installed with developing elements and other elements. The terminal portion 20 is detachably connected to the side end portion of the box main body 10 and used to contact the stylus of the image forming device to realize data communication.

[0038] The box body 10 is provided with a contact fulcrum part 11 at the front end along the mounting direction, and a first limiting part 12 and an energy storage part 13 at the rear end. The contact fulcrum part 11 is a part or structure provided on the front end wall of the box body 10 and abutting against the drum cartridge body, and the specific form is not limited. The first limiting part 12 is a protruding structure outwardly provided from the rear end of the box body 10, which can be a protruding block, and the specific form is not limited. Further, a mounting groove 10a is provided at the rear end of the box body 10, which is adjacent to and spaced from the first limiting part 12. The two sides of the mounting groove 10a are respectively provided with straight sliding grooves 10a-1. The energy storage part 13 includes a free end 131 and an elastic part 132. The free end 131 has an end face 131a. The elastic part 132 can be a spring, a spring sheet or other elastic part capable of elastic deformation. The energy storage part 13 is mounted in the mounting groove 10a. One end of the elastic part 132 is fixedly connected with the mounting groove 10a, and the other end is fixedly connected with the free end 131. The two sides of the free end 131 are respectively provided with guide columns 131b. When the elastic part 132 is compressed / elongated, the guide columns 131b slide back and forth in the straight sliding grooves 10a-1.

[0039] The terminal part 20 is provided at the side end of the box body 10. The terminal part 20 includes a connecting body 22 and a terminal element 21. The connecting body 22 is provided with a body 221 protruding in the first direction 30. The body 221 is detachably connected with the side end of the box body 10, such as snap connection or screw connection, so that the terminal part 20 is detachably connected with the side end of the box body 10. Thus, the terminal part 20 and the box body 10 can be separately packaged, manufactured and maintained / replaced, so that the terminal part 20 is not easily damaged and is conducive to resource saving, energy saving and environmental protection.

[0040] Further, the body 221 is provided with a second limiting part 2211 and a carrier 2212 protruding in the second direction 40. In the first direction 30, a first guide part 2213 is provided between the second limiting part 2211 and the carrier 2212. The first guide part 2213 can be a groove formed between the second limiting part 2211 and the carrier 2212 to form a channel for the sliding of the guide inner cavity. The second limiting part 2211 and the carrier 2212 limit the back-and-forth displacement of the box body 10 in the first direction 30 during the mounting / demounting of the developing cartridge 100, so as to avoid shaking and jamming. The terminal element 21 is mounted on the carrier 2212 by welding or pasting. The carrier 2212 is provided with a second guide part 22121. In the mounting direction of the developing cartridge 100, the second guide part 22121 is located more forwardly than the terminal element 21. The second guide part 22121 plays a role in guiding the mounting of the developing cartridge 100 and preventing the terminal element 21 from being damaged by sliding contact with the cavity wall of the inner cavity.

[0041] The first direction 30 intersects the installation direction of the developing cartridge 100, and the second direction 40 intersects both the first direction 30 and the installation direction of the developing cartridge 100.

[0042] During installation of the developing cartridge 100, the second guide portion 22121 slides in contact with the cavity wall of the inner cavity, the ribs of the inner cavity guide the sliding in the first guide portion 2213, the free end 131 of the energy storage member 13 abuts against the cavity wall of the inner cavity to compress the energy storage, and the energy storage member 13 is compressed and deformed.

[0043] When the developing cartridge 100 is installed in place, the energy storage member 13 is elongated to release the energy storage, the energy storage member 13 is elongated and deformed, the developing cartridge 100 is rotated with the contact fulcrum portion 11 as the fulcrum, and the first limiting portion 12 can be in contact with the cavity wall of the inner cavity.

[0044] During removal of the developing cartridge 100, the developing cartridge 100 is rotated in the opposite direction with the contact fulcrum portion 11 as the fulcrum, the free end 131 of the energy storage member 13 abuts against the cavity wall of the inner cavity to compress the energy storage, the first limiting portion 12 is out of contact with the cavity wall of the inner cavity, and the ribs of the inner cavity guide the sliding in the first guide portion 2213 in the opposite direction of the installation direction.

[0045] In the embodiment, after the developing cartridge 100 is connected to the photosensitive drum cartridge body, the developing cartridge 100 is installed in the inner cavity of the image forming device for printing. The developing cartridge 100 is cleverly structured. During installation of the developing cartridge 100, an operator pushes the developing cartridge 100 towards the inner cavity, the cartridge body 10 is pressed by the inner cavity of the image forming device, the developing cartridge 100 is rotated in the forward direction 50 with the contact fulcrum portion 11 as the fulcrum, the end surface 131a of the free end 131 of the energy storage member 13 abuts against the cavity wall of the inner cavity to compress the energy storage, at the same time, the second guide portion 22121 slides in contact with the cavity wall of the inner cavity, and the ribs of the inner cavity guide the sliding in the first guide portion 2213 to guide the sliding of the developing cartridge 100 into the inner cavity, so that the developing cartridge 100 is smoothly installed in the image forming device.

[0046] When the developing cartridge 100 is installed in place, the energy storage member 13 is elongated to release the energy storage, the developing cartridge 100 is rotated in the reverse direction 60 with the contact fulcrum portion 11 as the fulcrum, the terminal element 21 of the terminal portion 20 is moved towards the contact pin of the image forming device, the terminal element 21 of the terminal portion 20 is in stable contact with the contact pin of the image forming device, the first limiting portion 12 can be in contact with the cavity wall of the inner cavity to ensure the contact force of the terminal element 21 and the contact pin of the image forming device, prevent the contact pin from being pressed and damaged, ensure the printing effect of the image forming device, and improve the printing quality.

[0047] In the process of taking out the developing cartridge 100, the operator pulls the developing cartridge 100 away from the inner cavity of the image forming device, the cartridge body 10 is pressed by the inner cavity of the image forming device, the end surface 131a of the free end 131 of the energy storage member 13 abuts against the cavity wall of the inner cavity to compress the energy storage, so that the developing cartridge 100 rotates forward 50 with the contact fulcrum part 11 as the fulcrum, the terminal element 21 of the terminal part 20 is separated from the image forming device contact pin, and the first limiting part 12 is separated from the cavity wall of the inner cavity, the inner cavity bones guide the sliding in the reverse direction of the mounting direction in the first guide part 2213 to guide the developing cartridge 100 to slide out of the inner cavity, so that the developing cartridge 100 is smoothly taken out of the image forming device.

[0048] In the embodiment, referring to Figure 5 , preferably, the second guide part 22121 is provided with a guide slope surface 22121a, the extension line of the guide slope surface 22121a intersects the terminal surface of the terminal element 21 to form an acute angle, and the terminal surface is parallel to the end surface 131a of the free end 131 of the energy storage member 13 or intersects the end surface 131a to form an acute angle of not more than 10°; as described above, the guide slope surface 22121a is in contact with the inclined wall of the cavity wall of the inner cavity and slides, the guiding effect of mounting is better, and the extension line of the guide slope surface 22121a intersects the terminal surface of the terminal element 21 to form an acute angle, which prevents the terminal element 21 from being damaged by contacting and sliding with the cavity wall of the inner cavity while ensuring the guiding effect of the guide slope surface 22121a; further, the terminal surface is parallel to the end surface 131a of the free end 131 of the energy storage member 13 or intersects the end surface 131a to form an acute angle of not more than 10°; since the energy storage member 13 stores and releases energy by the end surface 131a of the free end 131 contacting the cavity wall of the inner cavity, the energy storage member 13 generates a linear main force acting on the terminal element 21 of the terminal part 20 to move towards the image forming device contact pin, so that the terminal element 21 stably contacts the image forming device contact pin, the electrical connection is stable, and when the developing cartridge 100 is taken out, the terminal element 21 of the terminal part 20 is separated from the image forming device contact pin, which facilitates the taking-out operation.

[0049] Referring to Figure 1 , in the first direction 30, the carrier 2212 is arranged more forwardly than the second limiting part 2211; since the terminal element 21 is mounted on the carrier 2212, the carrier 2212 is arranged more forwardly to avoid structural interference with the side end part of the cartridge body 10, so that the terminal element 21 smoothly contacts the image forming device contact pin; on the other hand, after the body 221 is fixedly connected with the side end part of the cartridge body 10, the second limiting part 2211 is arranged between the side end part of the cartridge body 10 and the carrier 2212, which can increase the structural strength of the second limiting part 2211 and has a stronger effect of preventing the cartridge body 10 from shaking during the mounting / taking-out process.

[0050] Referring to Figures 6-8, preferably, the second limiting part 2211 is provided with a first guiding branch 22111 in the first direction 30, the carrier 2212 is provided with a second guiding branch 22122 in the opposite direction of the first direction 30, further, the first guiding branch 22111 and the second guiding branch 22122 are both provided with a slope surface, so as to enhance the guiding effect of the ribs of the inner cavity during the installation / removal process, and the first guiding branch 22111 and the second guiding branch 22122 can also increase the structural strength of the second limiting part 2211 and the carrier 2212, further limit the back-and-forth displacement of the cartridge main body 10 in the first direction 30 during the installation / removal process, and avoid shaking.

[0051] Further, the carrier 2212 is also provided with a third guiding part 22123, which has the same structure as the second guiding part 22121 and is provided with a slope surface, so as to avoid interference with the cavity wall of the inner cavity during the removal process of the developing cartridge 100, and facilitate smooth removal of the developing cartridge 100.

[0052] In the embodiment, referring to Figure 1 and Figure 3 , the first limiting part 12 and the energy storage member 13 are closer to the terminal part 20 than the contact fulcrum part 11; the distance between the first limiting part 12 / energy storage member 13 and the contact fulcrum part 11 is maximized by the above structure, so that the most labor-saving effect is achieved when the developing cartridge 100 rotates forward 50 / reversely 60 with the contact fulcrum part 11 as the fulcrum.

[0053] In the embodiment, referring to Figure 1 , Figure 3 and Figure 5 , the contact fulcrum part 11, the terminal part 20 and the energy storage member 13 form a triangular positional relationship from the first direction 30, and the contact fulcrum part 11, the terminal part 20 and the first limiting part 12 form a triangular positional relationship; the above structure meets the most stable principle of a triangle, and ensures the stability of the contact between the terminal element 21 of the terminal part 20 and the stylus of the image forming apparatus when the developing cartridge 100 is installed in place.

[0054] Continuing to refer to Figure 1 , Figure 3 and Figure 5 , the contact fulcrum part 11, the terminal part 20 and the energy storage member 13 form a triangular positional relationship from the second direction 40, and the contact fulcrum part 11, the terminal part 20 and the first limiting part 12 form a triangular positional relationship; the above structure in both directions meets the most stable principle of a triangle, and further improves the stability of the contact between the terminal element 21 of the terminal part 20 and the stylus of the image forming apparatus.

[0055] Preferably, in the embodiment, referring to Figure 1The cartridge body 10 is provided with M energy storage members 13 along the first direction 30, and the M energy storage members 13 are arranged on both sides of the center line of the cartridge body 10, wherein M=2n, n is a natural number and n>0; the arrangement of the energy storage members 13 as above makes the energy storage members 13 in contact with the cavity wall of the inner cavity when storing and releasing energy, balanced and stable, so that the cartridge body 10 is not biased and not shaken, and ensures that the developing cartridge 100 is installed / taken out smoothly and does not jam.

[0056] The embodiment also provides an imaging device, which comprises the developing cartridge 100 described above, the developing cartridge 100 is installed in the inner cavity of the imaging device after being connected with the photosensitive drum cartridge body, and the terminal element 21 of the terminal part 20 of the developing cartridge 100 is in stable contact with the stylus of the imaging device, so that the printing effect of the imaging device is good and the printing quality is good.

[0057] Finally, it should be noted that the above description is only the best embodiment of the present application, and does not limit the present application in any form. Any person skilled in the art can make many possible changes and simple replacements to the technical scheme of the present application without departing from the scope of the technical scheme of the present application, which belongs to the protection scope of the technical scheme of the present application.

Claims

1. A developing cartridge connected with a photosensitive drum cartridge body, installed in an inner cavity of an image forming device, the developing cartridge comprising a cartridge main body and a terminal portion, characterized in that, the cartridge main body is provided with a contact fulcrum portion at a front end and a first limiting portion and an energy storage member at a rear end along an installation direction, one end of the energy storage member is fixedly connected with the cartridge main body, and the other end is a free end; the terminal portion is arranged at a side end portion of the cartridge main body, the terminal portion comprises a connecting body and a terminal element, the connecting body is provided with a main body protruding along a first direction, the main body is provided with a second limiting portion and a carrier protruding along a second direction, and a first guide portion is arranged between the second limiting portion and the carrier in the first direction, the terminal element is installed on the carrier, the carrier is provided with a second guide portion, and the second guide portion is located more forward than the terminal element in the installation direction; wherein, during installation of the developing cartridge, the second guide portion slides in contact with a cavity wall of the inner cavity, a rib and bone of the inner cavity guides sliding in the first guide portion, and the free end of the energy storage member abuts against the cavity wall of the inner cavity to compress energy storage; when the developing cartridge is installed in place, the energy storage member is elongated to release energy, so that the developing cartridge rotates about the contact fulcrum portion, and the first limiting portion can be in contact with the cavity wall of the inner cavity; wherein, the first direction intersects the installation direction of the developing cartridge, and the second direction intersects the first direction and the installation direction of the developing cartridge. During removal of the developing cartridge from the image forming device, the developing cartridge reversely rotates about the contact fulcrum portion, the free end of the energy storage member abuts against the cavity wall of the inner cavity to compress energy storage, the first limiting portion is out of contact with the cavity wall of the inner cavity, and the rib and bone of the inner cavity guides sliding in the first guide portion in the reverse direction of the installation direction. The second guide portion is provided with a guide slope surface, an extension line of the guide slope surface intersects a terminal surface of the terminal element to form an acute angle, and the terminal surface is parallel to an end surface of the free end of the energy storage member or intersects the end surface to form an acute angle not more than 10°. In the first direction, the carrier is arranged more forward than the second limiting portion. The second limiting portion is provided with a first guide branch portion along the first direction, and the carrier is provided with a second guide branch portion in the reverse direction of the first direction.

2. The process cartridge according to claim 1, wherein The first limiting portion and the energy storage member are closer to the terminal portion than the contact fulcrum portion.

3. The process cartridge according to claim 2, wherein, From the first direction, the contact fulcrum portion, the terminal portion, and the energy storage member form a triangular positional relationship, and the contact fulcrum portion, the terminal portion, and the first limiting portion form a triangular positional relationship.

4. The process cartridge according to claim 3, wherein, From the second direction, the contact fulcrum portion, the terminal portion, and the energy storage member form a triangular positional relationship, and the contact fulcrum portion, the terminal portion, and the first limiting portion form a triangular positional relationship.

5. The process cartridge according to claim 4, wherein, Along the first direction, the cartridge main body is provided with M energy storage members, and the M energy storage members are arranged on both sides of a center line of the cartridge main body, wherein M = 2n, n is a natural number and n > 0.

6. The process cartridge according to claim 5, wherein, The developing cartridge comprises:

7. The process cartridge according to any one of claims 1-6, wherein ​ 8. The process cartridge according to claim 7, wherein, ​ 9. The process cartridge according to claim 8, wherein, ​ 10. An image forming apparatus characterized by comprising: ​ The developing cartridge of any one of claims 1-9, wherein the developing cartridge is installed in an internal cavity of the image forming device after the developing cartridge is connected to the photoconductor cartridge body.

Images