Carbon powder cartridge mounting portion and process cartridge

Abstract

The utility model provides a kind of processing box and carbon powder box mounting portion in processing box, carbon powder box mounting portion is used to be connected with developing box, and is used to accommodate carbon powder box, carbon powder box is installed to carbon powder box mounting portion in detachable mode, carbon powder box is used to accommodate carbon powder, and supplies carbon powder to developing box, carbon powder box mounting portion includes installation shell and installation cavity formed in installation shell, installation cavity is used to accommodate at least part of carbon powder box, developing box includes developing shell and developing roller rotatably arranged in developing shell, developing roller rotates around first rotation axis parallel with left and right direction, front and back direction intersects left and right direction, developing box and carbon powder box mounting portion are arranged along from front to back direction;Carbon powder box mounting portion is further provided with limiting piece for preventing carbon powder box from being separated backward from carbon powder box mounting portion, limiting piece is made of non-metal material;Compared with existing metal material, such setting can reduce the manufacturing cost of carbon powder box mounting portion and processing box.

Description

Technical Field

[0001] This utility model relates to the field of electrophotographic imaging technology, and in particular to a processing box and a toner cartridge mounting part in the processing box. Background Technology

[0002] A processing cartridge is a consumable used in imaging equipment. The processing cartridge includes a processing cartridge body and a toner cartridge disposed on the processing cartridge body. The processing cartridge body includes a developing cartridge with a developing roller and a toner hopper. The toner hopper is used to hold toner, and the developing roller is used to carry the toner and supply to the photosensitive drum disposed opposite to the developing roller, so that the electrostatic latent image formed on the surface of the photosensitive drum is developed. The toner cartridge is used to replenish toner to the developing cartridge or the toner hopper, which can increase the toner capacity of the processing cartridge and extend the service life of the processing cartridge.

[0003] The processing box body also includes a limiting member for preventing the toner cartridge from falling off the processing box body. In existing products, the limiting member is designed to be detachable and is made of metal material. This not only increases the assembly steps of the processing box, but also increases the manufacturing cost of the processing box. Utility Model Content

[0004] This utility model provides a processing box and a toner cartridge mounting part in the processing box that adopt the following technical solution, so as to solve at least one of the above-mentioned technical problems. The specific technical solution is as follows:

[0005] A toner cartridge mounting section is provided for connection to a developing cartridge and for accommodating a toner cartridge. The toner cartridge is detachably mounted to the toner cartridge mounting section. The toner cartridge is used to hold toner and supply toner to the developing cartridge. The toner cartridge mounting section includes a mounting housing and a mounting cavity formed within the mounting housing. The mounting cavity is used to accommodate at least a portion of the toner cartridge. The developing cartridge includes a developing housing and a developing roller rotatably disposed within the developing housing. The developing roller rotates about a first rotation axis parallel to the left-right direction, and the front-back direction intersects the left-right direction. The developing cartridge and the toner cartridge mounting section are arranged in a front-to-back direction, and the direction intersecting both the left-right and front-back directions is the up-down direction. The toner cartridge mounting section is also provided with a limiting member for preventing the toner cartridge from detaching rearward from the toner cartridge mounting section. The limiting member is made of a non-metallic material.

[0006] The mounting housing is connected to the limiting component.

[0007] The mounting housing includes an exposure port and a side plate assembly. The side plate assembly includes at least a fifth side plate. The exposure port is exposed forward through the fifth side plate and communicates with the mounting cavity. The mounting cavity is located behind the fifth side plate or the exposure port. In the front-back direction, the exposure port or the fifth side plate is opposite to the developing housing. The limiting member protrudes from at least one side plate of the side plate assembly toward the exposure port.

[0008] Along the front-to-back direction, a portion of the limiting member coincides with the exposed opening.

[0009] The side panel assembly also includes a third side panel and a fourth side panel that are spaced apart from each other in the left-right direction. The third side panel is closer to the exposure opening than the fourth side panel. At least one of the third side panel and the fourth side panel is connected to the fifth side panel. In the left-right direction, the mounting cavity is located between the third side panel and the fourth side panel.

[0010] The toner cartridge includes a main housing, a toner outlet disposed on the main housing, and a sealing assembly that can move in the left and right direction relative to the main housing. The toner inside the toner cartridge is supplied to the developing cartridge through the toner outlet.

[0011] The sealing assembly includes a pusher, a connector, and a second seal. The connector connects the pusher and the second seal. The second seal is used to seal the powder outlet. Under the action of external force, the pusher can drive the second seal to move in the left-right direction. In the front-back direction, the second seal is located in front of the powder outlet. The second seal / powder outlet is located in front of the pusher.

[0012] The main housing also includes a front sidewall facing the second seal, with a powder outlet disposed on the front sidewall. A limiting cavity is formed between the front sidewall, the connector, and the second seal. The limiting cavity is used to accommodate at least a portion of the limiting member to prevent the toner cartridge from detaching backward.

[0013] The limiting cavity is open in a direction that intersects with the front-back direction.

[0014] The processing box includes a developing box and the toner cartridge mounting part described above. The developing box and the toner cartridge mounting part are connected to each other. At least one of the developing housing and the mounting housing is integrally formed with the limiting member.

[0015] The processing cartridge includes a developing cartridge and the toner cartridge mounting part described above. The developing cartridge and the toner cartridge mounting part are connected to each other. The mounting housing includes an exposed opening that communicates with the mounting cavity. In the front-back direction, the mounting cavity is located behind the exposed opening. The developing housing has a rear sidewall facing the rear. In the front-back direction, the exposed opening is opposite to the rear sidewall. The limiting member is configured to protrude from the rear sidewall toward the exposed opening.

[0016] The processing box also includes a drum box that is combined with the developing box. The drum box includes a drum housing and a photosensitive drum that is rotatably disposed in the drum housing. The surface of the photosensitive drum is used to form an electrostatic latent image. The developing roller and the photosensitive drum are disposed opposite to each other. The developing roller is used to transport toner to the photosensitive drum so as to form an electrostatic latent image.

[0017] Compared with the prior art, the processing box and the toner cartridge mounting part in the processing box provided by this utility model are provided with a limiting member made of non-metallic material. The limiting member is used to prevent the toner cartridge from detaching from the toner cartridge mounting part. Compared with the existing metallic materials, the manufacturing cost of the toner cartridge mounting part and the processing box can be reduced. Attached Figure Description

[0018] Figure 1 This is an exploded view of the main components of the processing box and the toner cartridge involved in this utility model.

[0019] Figure 2 This is a perspective view of the main component of the processing box involved in this utility model.

[0020] Figure 3 The main component of the processing box involved in this utility model is along Figure 2 A three-dimensional view after being cut along the AA direction.

[0021] Figure 4 This is an exploded view of some components of the main assembly of the processing box involved in this utility model.

[0022] Figure 5A and Figure 5B This is a perspective view of the toner cartridge mounting section of the main component of the processing box involved in this utility model.

[0023] Figure 6 This is an exploded view of some components of the toner cartridge of the processing box involved in this utility model.

[0024] Figure 7 This utility model relates to a toner cartridge for a processing box. Figure 1 A three-dimensional view after being sectioned along the BB direction. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0026] Figure 1 This is an exploded view of the main components of the processing box and the toner cartridge involved in this utility model.

[0027] like Figure 1 As shown, the processing cartridge 100 includes a main component 10 and a toner cartridge 20 that is detachably mounted to the main component 10. The toner cartridge 20 is used to hold toner and supply / transport toner to the main component 10 to expand the toner capacity of the processing cartridge 100.

[0028] (Structure of the main component)

[0029] Figure 2 This is a perspective view of the main component of the processing box involved in this utility model; Figure 3 The main component of the processing box involved in this utility model is along Figure 2 A three-dimensional view after being cut along the AA direction.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the main component 10 includes a drum cartridge 11 and a developing cartridge 12 connected to each other. The drum cartridge 11 includes a drum housing 111 and a photosensitive drum 112 rotatably disposed in the drum housing 111. The surface of the photosensitive drum 112 is used to form an electrostatic latent image. The developing cartridge 12 includes a developing housing 121, a developing roller 122 rotatably disposed in the developing housing 121, and a toner hopper 123 formed in the developing housing 122. The toner hopper 123 is used to contain toner. The developing roller 122 is used to carry toner and supply toner to the photosensitive drum 112, so that the electrostatic latent image formed on the surface of the photosensitive drum 112 is developed. The developing roller 122 and the photosensitive drum 112 are arranged opposite to each other.

[0031] The developing roller 122 rotates around the first rotation axis L, and the photosensitive drum 112 rotates around a rotation axis parallel to the first rotation axis L. The direction parallel to the first rotation axis is the left-right direction. The arrangement direction of the developing box 12 and the drum box 11 is the front-back direction. The drum box 11 is located in front of the developing box 12. The left-right direction intersects with the front-back direction, and the direction intersects with both the front-back direction and the left-right direction is the up-down direction. Preferably, the left-right direction, the front-back direction, and the up-down direction are all orthogonal to each other.

[0032] Figure 4 This is an exploded view of some components of the main assembly of the processing box involved in this utility model.

[0033] like Figure 3 and Figure 4 As shown, in the front-to-back direction, at least a portion of the photosensitive drum 112 is located in front of the developing roller 122, and the developing roller 122 is located in front of the toner cartridge 123. The developing cartridge 12 also includes a toner inlet 124 and a first seal 125. The toner inlet 124 communicates with the toner cartridge 123 and is disposed in the developing housing 121, and is used to allow toner from the toner cartridge 100 to enter the toner cartridge 123. The first seal 125 is at least used to seal the toner inlet 124, and the first seal 125 is movable in the left-right direction relative to the developing housing 121, such that the first seal 125 moves between a first position and a second position. In the first position, the toner inlet 124 is sealed, and toner cannot be delivered to the toner cartridge 123. In the second position, the toner inlet 124 is unsealed, and toner can be delivered to the toner cartridge 123.

[0034] In some embodiments, the first seal 125 is located behind the powder inlet 124 in the front-back direction.

[0035] like Figure 1 , Figure 2, Figure 3 and Figure 4 As shown, the main component 10 also includes a toner cartridge mounting part 13 that is combined / connected with the developing cartridge 12. The toner cartridge mounting part 13 is used to accommodate the toner cartridge 20, which supplies toner to the developing cartridge 12. The toner cartridge 20 is detachably mounted to the toner cartridge mounting part 13 / main component 10. The toner cartridge mounting part 13 includes a mounting housing 131 and a mounting cavity 132 formed in the mounting housing 131. The mounting cavity 132 is used to accommodate at least a portion of the toner cartridge 20. The mounting housing 131 also forms a mounting opening 131g that communicates with the mounting cavity 132. The mounting opening 131g is open to the rear. The toner cartridge 20 is installed and removed through the mounting opening 131g. Specifically, the toner cartridge 20 is installed in the forward direction and removed in the rearward direction. Based on the installation posture of the toner cartridge 20, the left-right direction is the length direction, the up-down direction is the height direction, and the width direction is the front-back direction.

[0036] Figure 5A and Figure 5B This is a perspective view of the toner cartridge mounting section of the main component of the processing box involved in this utility model.

[0037] like Figure 5A and Figure 5B As shown, the mounting housing 131 also has an exposure port 131a communicating with the mounting cavity 132. The mounting port 131g and the exposure port 131a are arranged opposite each other in the front-back direction. In the front-back direction, at least a portion of the exposure port 131a coincides with the mounting port 131g.

[0038] The processing cartridge 100 includes a processing cartridge housing and a rotating component rotatably disposed in the processing cartridge housing. The toner cartridge 20 is detachably mounted to the processing cartridge housing. The processing cartridge housing includes at least a developing housing 121 and a mounting housing 131. The rotating component includes rotating components such as a developing roller 122.

[0039] In some embodiments, the processing cartridge housing includes a developing housing 121 and a mounting housing 131, in which case the processing cartridge 100 includes a developing cartridge 12 and a toner cartridge mounting portion 13.

[0040] In some embodiments, the processing cartridge housing includes a photosensitive housing 111, a developing housing 121, and a mounting housing 131. In this case, the processing cartridge 100 includes a drum cartridge 11, a developing cartridge 12, and a toner cartridge mounting portion 13. The rotating component also includes a photosensitive drum 112.

[0041] In some embodiments, the photosensitive housing 111, the developing housing 121, and the mounting housing 131 are integrally formed.

[0042] In some embodiments, the photosensitive housing 111 and the developing housing 121 are integrally formed, and the housing formed by the integral photosensitive housing 111 and the developing housing 121 is separately formed from the mounting housing 131.

[0043] In some embodiments, the mounting housing 131 is integrally formed with the developing housing 121, and the housing formed integrally with the developing housing 121 is separately formed from the photosensitive housing 111.

[0044] In some embodiments, the photosensitive housing 111, the developing housing 121, and the mounting housing 131 are all formed separately, that is, the photosensitive housing 111, the developing housing 121, and the mounting housing 131 are formed as three independent components.

[0045] (Structure of the toner cartridge)

[0046] Figure 6 This is an exploded view of some components of the toner cartridge of the processing box involved in this utility model.

[0047] like Figure 1 and Figure 6 As shown, the toner cartridge 20 includes a main housing 21 and a receiving cavity 22 formed in the main housing 21. The receiving cavity 22 is used to receive toner. The toner cartridge 20 also includes a toner outlet 23 and a sealing assembly 24. The sealing assembly 24 is used to seal the toner outlet 23 at least. The toner outlet 23 is connected to the receiving cavity 22. The toner in the receiving cavity 22 is transported to the developing cartridge 12 through the toner outlet 23. In the front-back direction, at least a portion of the toner outlet 23 coincides with the toner inlet 124.

[0048] The sealing assembly 24 includes a pusher 241, a connector 242, and a second seal 243. The connector 242 connects the pusher 241 and the second seal 243. The sealing assembly 24 can move in the left and right direction relative to the main housing 21. Specifically, under the action of external force, the pusher 241 can move in the left and right direction, and through the connector 242, it drives the second seal 243 to move in the left and right direction, so that the sealing assembly 24 moves between a third position and a fourth position. In the third position, the powder outlet 23 is sealed, and the powder outlet 23 cannot communicate with the powder inlet 124, so the toner cannot be delivered. In the fourth position, the powder outlet 23 is unsealed, and the powder outlet 23 communicates with the powder inlet 124, so the toner can be delivered.

[0049] In the front-back direction, the second seal 243 is located in front of the powder outlet 23, and the second seal 243 / powder outlet 23 is located in front of the pusher 241.

[0050] With the toner cartridge 20 installed in the toner cartridge mounting part 13, the second seal 243 and the powder outlet 23 are exposed toward the developer cartridge 12 through the exposure port 131a, so that the toner in the toner cartridge 20 can be delivered to the developer cartridge 12 or the powder container 123.

[0051] The sealing component 24 is linked with the first sealing element 125. That is, under the action of external force, the sealing component 24 can drive the first sealing element 125 to move in the left and right direction. When the sealing component 24 is in the third position, the first sealing element 125 is in the first position. When the sealing component 24 is in the fourth position, the first sealing element 125 is in the second position.

[0052] The main housing 21 has a front sidewall 21a facing forward or facing the second seal 243, and the powder outlet 23 is disposed on the front sidewall 21a. In some embodiments, the front sidewall 21a is configured in an arc shape to ensure that the toner is fully utilized.

[0053] Figure 7 This utility model relates to a toner cartridge for a processing box. Figure 1 A three-dimensional view after being sectioned along the BB direction.

[0054] like Figure 7 As shown, a limiting cavity 25 is formed between the connector 242, the second seal 243, and the main housing 21 / front sidewall 21a. The processing cartridge 100 also includes at least one limiting member 30 for preventing the toner cartridge 20 from disengaging rearward from the toner cartridge mounting portion 13. At least a portion of the limiting member 30 is accommodated by the limiting cavity 25 to restrict the toner cartridge 20 from disengaging rearward from the toner cartridge mounting portion 13. At least one of the mounting housing 131 and the developing housing 121 is connected to the limiting member 30. Further, at least one of the mounting housing 131 and the developing housing 121 is integrally formed with the limiting member 30, or the limiting member 30 is integrally formed with the processing cartridge housing.

[0055] The limiting member 30 is made of non-metallic material. Compared with metallic material, non-metallic material can produce slight deformation, which is beneficial for the limiting member 30 to enter the limiting cavity 25.

[0056] In some embodiments, the processing box 100 is provided with two or three limiting members 30, which can increase the stability of the toner box 20 in the toner box mounting part 13.

[0057] The limiting cavity 25 opens in a direction intersecting the front-back direction, as detailed below:

[0058] In some embodiments, the limiting cavity 25 is open to the left or to the right, and at least a portion of the limiting member 30 enters from the left or right side of the limiting cavity 25.

[0059] In some embodiments, the limiting cavity 25 is open to the upper or lower, and at least a portion of the limiting member 30 enters from above or below the limiting cavity 25.

[0060] In some implementations, such as Figure 1 , Figure 5A and Figure 6 As shown, the main housing 21 also includes a sub-side wall 21b disposed adjacent to the front side wall 21a in the left-right direction. In the left-right direction, the sub-side wall 21b is located to the right of the front side wall 21a. In the front-back direction, the front side wall 21a is recessed rearward relative to the sub-side wall 21b. That is, a step is formed between the front side wall 21a and the sub-side wall 21b. An active space 21c is formed between the front side wall 21a and the sub-side wall 21b. The active space 21c is used to allow a part of the connector 242 and the second seal 243 to move in the left-right direction. When the toner cartridge 20 is installed in the toner cartridge mounting part 13, the active space 21c can also accommodate at least a part of the limiting member 30 and allow a part of the limiting member 30 to move in the accommodating space 21c.

[0061] like Figure 5A and Figure 5B As shown, the mounting housing 131 is further provided with a side plate assembly including at least a fifth side plate 131f. The exposure port 131a is exposed forward through the fifth side plate 131f, or a portion of the fifth side plate 131f extends through to form the exposure port 131a in the front-back direction. The mounting cavity 132 is located behind the fifth side plate 131f or the exposure port 131a. In the front-back direction, the exposure port 131a or the fifth side plate 131f is opposite to the developing housing 121. Specifically, at least a portion of the front side wall 21a is opposite to the exposure port 131a, and the sub-side wall 21b is opposite to at least a portion of the fifth side plate 131f. The limiting member 30 protrudes from at least one side plate of the side plate assembly toward the exposure port 131a.

[0062] When the side panel assembly is provided with only the fifth side panel 131f, the space behind the fifth side panel 131f forms a mounting cavity 132.

[0063] Along the front-back direction, a portion of the limiting member 30 coincides with the exposed opening 131a.

[0064] The side panel assembly further includes a third side panel 131d and a fourth side panel 131e arranged at intervals opposite to each other in a left-right direction. The third side panel 131d is located to the left of the fourth side panel 131e. At least one of the third side panel 131d and the fourth side panel 131e is connected to a fifth side panel 131f. The third side panel 131d, the exposure opening 131a, at least a portion of the fifth side panel 131f, and the fourth side panel 131e are distributed sequentially from left to right. The toner cartridge mounting part 13 is also provided with a way to mount the toner cartridge from the developing cartridge. 12 or drum 11 receives a driving force receiving member and a guide member for guiding the toner cartridge 20. The driving force receiving member is closer to the mounting cavity 132 than the third side plate 131d or the fourth side plate 131e. The guide member is disposed on at least one of the third side plate 131d and the fourth side plate 131e. In the left-right direction, the mounting cavity 132 is located between the third side plate 131d and the fourth side plate 131e. Further, the third side plate 131d is closer to the exposure port 131a than the fourth side plate 131e.

[0065] In some embodiments, the side panel assembly further includes a first side panel 131b and a second side panel 131c that are spaced apart from each other in the vertical direction. Both the first side panel 131b and the second side panel 131c are connected to the fifth side panel 131f. The first side panel 131b is located above the second side panel 131c. In the vertical direction, the mounting cavity 132 is located between the first side panel 131b and the second side panel 131c.

[0066] The fifth side plate 131f is located in front of the first side plate 131d, the second side plate 131c, the third side plate 131d, and the fourth side plate 131e.

[0067] In some embodiments, the limiting member 30 is disposed on the fifth side plate 131f, and the limiting member 30 protrudes from the fifth side plate 131f toward the exposure opening 131a. For example, the limiting member 30 may protrude from the left end / right end / upper end / lower end of the fifth side plate 131f toward the exposure opening 131a, or the limiting member 30 may protrude from any position between the left end, right end, upper end and lower end of the fifth side plate 131f toward the exposure opening 131a. Preferably, the limiting member 30 is integrally formed with the fifth side plate 131f.

[0068] In some embodiments, the limiting member 30 is disposed on the third side plate 131d, and the limiting member 30 protrudes from the third side plate 131d toward the exposure opening 131a / fourth side plate 131e. Preferably, the limiting member 30 is integrally formed with the third side plate 131d.

[0069] In some embodiments, the limiting member 30 is disposed on the first side plate 131b, and the limiting member 30 protrudes from the first side plate 131b toward the exposure opening 131a / second side plate 131c. Preferably, the limiting member 30 is integrally formed with the first side plate 131b.

[0070] In some embodiments, the limiting member 30 is disposed on the second side plate 131c, and the limiting member 30 protrudes from the second side plate 131c toward the exposure opening 131a / first side plate 131b. Preferably, the limiting member 30 is integrally formed with the second side plate 131c.

[0071] like Figure 2 , Figure 4 and Figure 7 As shown, the developing housing 121 has a rear sidewall 121a facing the rear / toner cartridge 20, a toner inlet 124 is disposed on the rear sidewall 121a, and the exposure port 131a is opposite to the rear sidewall 121a. When the toner cartridge 20 is installed to the toner cartridge mounting part 13, the front sidewall 21a and the rear sidewall 121a are spaced apart and opposite each other in the front-back direction.

[0072] In some embodiments, the limiting member 30 is disposed on the rear sidewall 121a. The limiting member 30 is configured to protrude from the rear sidewall 121a toward the rear / exposed opening 131a. In this case, the limiting member 30 is configured to be bent or hook-shaped. Specifically, the limiting member 30 includes a third part and a fourth part connected to each other. The third part protrudes rearward from the rear sidewall 121a, and the fourth part protrudes to the left, right, upward, or downward from the third part. At least a portion of the fourth part enters the limiting cavity 25 to prevent the toner cartridge 20 from disengaging.

[0073] In some embodiments, at least one of the fifth side plate 131f and the developing housing 121 / rear side wall 121a is integrally formed with the limiting member 30.

[0074] In some embodiments, at least one of the third side plate 131d and the developing housing 121 / rear side wall 121a is integrally formed with the limiting member 30.

[0075] In some embodiments, the limiting member 30 is also provided with a buckle, a hook, etc., and the toner cartridge 20 is provided with a mating part that cooperates with the buckle or hook. With such a design, the toner cartridge 20 can be further prevented from detaching from the toner cartridge mounting part 13.

[0076] In some embodiments, the limiting member 30 may undergo slight deformation to facilitate the entry of the limiting member 30 into the limiting cavity 25.

[0077] In some embodiments, the limiting member 30, the mounting housing 131, or the processing cartridge housing are all manufactured by injection molding. Specifically, at least one of the mounting housing 131 and the developing housing 121 can be integrally injection molded with the limiting member 30 or separately injection molded. Alternatively, the limiting member 30 can be integrally injection molded with the processing cartridge housing or separately injection molded. Compared to existing metal materials, this can also reduce the manufacturing cost of the toner cartridge mounting part 13 or the processing cartridge 100.

[0078] After the toner cartridge 20 is installed into the toner cartridge mounting part 13, at least a portion of the limiting member 30 is located in the limiting cavity 25 during the toner transport process from the toner cartridge 20 to the developing cartridge 12 / toner hopper 123. This prevents the toner cartridge 20 from separating from the toner cartridge mounting part 13 during toner transport, thus avoiding toner leakage that could contaminate the treatment box 100 and the imaging equipment. Therefore, the following two situations apply:

[0079] In the first scenario: when the sealing assembly 24 is in the third position and the first seal 125 is in the first position, the limiting member 30 does not enter the limiting cavity 25. When the sealing assembly 24 is in the fourth position and the first seal 125 is in the second position, at least a portion of the limiting member 30 enters the limiting cavity 25. That is, under the action of external force, during the movement of the sealing assembly 24 from the third position to the fourth position, at least a portion of the limiting member 30 gradually enters the limiting cavity 25.

[0080] In the second scenario, during the installation of the toner cartridge 20 into the toner cartridge mounting portion 13, at least a portion of the limiting member 30 gradually enters the limiting cavity 25. Furthermore, throughout the entire movement of the sealing assembly 24, at least a portion of the limiting member 30 remains within the limiting cavity 25, thus more effectively preventing the toner cartridge 20 from detaching from the toner cartridge mounting portion 13.

[0081] [Beneficial Effects]

[0082] Compared with the prior art, the toner cartridge mounting part 13 and the processing box 100 having the toner cartridge mounting part 13 provided by this utility model have the following beneficial effects:

[0083] Firstly, the processing cartridge 100 is provided with at least one limiting member 30, which is used to prevent the toner cartridge 20 from detaching from the toner cartridge mounting part 13. At least one of the mounting housing 131 and the developing housing 121 is integrally formed with the limiting member 30, or the limiting member 30 is integrally formed with the processing cartridge housing. With such a configuration, the assembly steps of the processing cartridge can be reduced, and the assembly difficulty of the processing cartridge 100 can be reduced.

[0084] Secondly, the limiting member 30 is made of non-metallic material, which reduces the manufacturing cost of the toner cartridge mounting part 13 and the processing box 100 compared with existing metallic materials.

[0085] Thirdly, at least one of the mounting housing 131 and the developing housing 121 can be separately injection molded with the limiting member 30, or the limiting member 30 can be separately injection molded with the processing cartridge housing. Compared with existing metal materials, the manufacturing cost of the toner cartridge mounting part 13 and the processing cartridge 100 can also be reduced by such an arrangement.

[0086] Fourthly, after the toner cartridge 20 is installed into the toner cartridge mounting part 13, at least a portion of the limiting member 30 is located in the limiting cavity 25 during the toner transport process from the toner cartridge 20 to the developing cartridge 12 / toner hopper 123. This prevents the toner cartridge 20 from separating from the toner cartridge mounting part 13 during toner transport, thus preventing toner leakage and avoiding toner contamination of the processing cartridge 100 and imaging equipment.

Claims

1. A toner cartridge mounting section for connecting to a developing cartridge and for accommodating a toner cartridge, the toner cartridge being detachably mounted to the toner cartridge mounting section, the toner cartridge being used to hold toner and supply toner to the developing cartridge, characterized in that, The toner cartridge mounting part includes a mounting housing and a mounting cavity formed in the mounting housing. The mounting cavity is used to accommodate at least a portion of the toner cartridge. The developing cartridge includes a developing housing and a developing roller rotatably disposed in the developing housing. The developing roller rotates about a first rotation axis parallel to the left-right direction. The front-back direction intersects the left-right direction. The developing cartridge and the toner cartridge mounting part are arranged in a front-back direction. The direction that intersects both the left-right direction and the front-back direction is the up-down direction. The toner cartridge mounting section is also provided with a limiting member to prevent the toner cartridge from detaching from the toner cartridge mounting section backward. The limiting member is made of non-metallic material.

2. The toner cartridge mounting part according to claim 1, characterized in that, The mounting housing is connected to the limiting component.

3. The toner cartridge mounting part according to claim 2, characterized in that, The mounting housing includes an exposure port and a side plate assembly. The side plate assembly includes at least a fifth side plate. The exposure port is exposed forward through the fifth side plate and communicates with the mounting cavity. The mounting cavity is located behind the fifth side plate or the exposure port. In the front-back direction, the exposure port or the fifth side plate is opposite to the developing housing. The limiting member protrudes from at least one side plate of the side plate assembly toward the exposure port.

4. The toner cartridge mounting part according to claim 3, characterized in that, Along the front-to-back direction, a portion of the limiting member coincides with the exposed opening.

5. The toner cartridge mounting part according to claim 3, characterized in that, The side panel assembly also includes a third side panel and a fourth side panel that are spaced apart from each other in the left-right direction. The third side panel is closer to the exposure opening than the fourth side panel. At least one of the third side panel and the fourth side panel is connected to the fifth side panel. In the left-right direction, the mounting cavity is located between the third side panel and the fourth side panel.

6. The toner cartridge mounting part according to any one of claims 1 to 5, characterized in that, The toner cartridge includes a main housing, a toner outlet disposed on the main housing, and a sealing assembly that can move in the left and right direction relative to the main housing. The toner inside the toner cartridge is supplied to the developing cartridge through the toner outlet. The sealing assembly includes a pusher, a connector, and a second seal. The connector connects the pusher and the second seal. The second seal is used to seal the powder outlet. Under the action of external force, the pusher can drive the second seal to move in the left-right direction. In the front-back direction, the second seal is located in front of the powder outlet. The second seal / powder outlet is located in front of the pusher. The main housing also includes a front sidewall facing the second seal, with a powder outlet disposed on the front sidewall. A limiting cavity is formed between the front sidewall, the connector, and the second seal. The limiting cavity is used to accommodate at least a portion of the limiting member to prevent the toner cartridge from detaching backward.

7. The toner cartridge mounting part according to claim 6, characterized in that, The limiting cavity is open in a direction that intersects with the front-back direction.

8. A processing box, characterized in that, The processing cartridge includes a developing cartridge and a toner cartridge mounting part as described in any one of claims 1 to 7, wherein the developing cartridge and the toner cartridge mounting part are connected to each other, and at least one of the developing housing and the mounting housing is integrally formed with a limiting member.

9. A processing box, characterized in that, The processing cartridge includes a developing cartridge and a toner cartridge mounting part as described in claim 1. The developing cartridge and the toner cartridge mounting part are connected to each other. The mounting housing includes an exposed opening communicating with a mounting cavity. In the front-rear direction, the mounting cavity is located behind the exposed opening. The developing housing has a rear sidewall facing rearward. In the front-rear direction, the exposed opening is opposite to the rear sidewall. The limiting member is configured to protrude from the rear sidewall toward the exposed opening.

10. The processing box according to claim 8 or 9, characterized in that, The processing box also includes a drum box that is combined with the developing box. The drum box includes a drum housing and a photosensitive drum that is rotatably disposed in the drum housing. The surface of the photosensitive drum is used to form an electrostatic latent image. The developing roller and the photosensitive drum are disposed opposite to each other. The developing roller is used to transport toner to the photosensitive drum so as to form an electrostatic latent image.

Images