Developing cartridge

Abstract

The utility model relates to a developing box. The developing box and a drum box are combined and then mounted to imaging equipment. The drum cartridge includes a conductive assembly for receiving power from an image forming apparatus and a separating member; the developing box comprises a developing part, and the developing part is provided with a developing shaft; the separating member is used for receiving pressure applied by the imaging equipment and forcing the developing part and the photosensitive part to be separated from each other; the developing box further comprises a developing part support and a power transmission part which are integrally or separately formed, the developing part support is used for supporting the developing part, the power transmission part is used for electrically connecting the conductive assembly and the developing shaft, and one part of the power transmission part is used for entering the space between the conductive assembly and the separation component; when the developing part support and the power transmission part are formed in a split mode, the developing part support is made of non-conductive materials. When the developing part support and the power transmission part are integrally formed, the power transmission part is not provided with a through hole for the separation component to be inserted, and the electrode of the developing box has the advantages of being simple in structure and convenient to install.

Description

[0001] This utility model requires that the applicant submit an application numbered

[0002] The applicant claims priority over the prior application No. 202222764965.0, with the invention name “Developing Box and Processing Box”, and the prior application No. 202321560484.6, with the invention name “Developing Box and Processing Box”, filed by the applicant with the China Patent Office on June 16, 2023. All contents of the prior application are cross-referenced in this application. Technical Field

[0003] The utility model relates to the field of electronic photographic imaging, in particular to a developing box which can be detachably installed in an electronic photographic imaging device. Background Art

[0004] A developer cartridge is a consumable widely used in imaging devices such as laser printers / copiers. When the imaging device is working, the developer cartridge uses a developer member rotatably mounted therein to supply developer to the surface of the photosensitive member where an electrostatic latent image is formed, so that the electrostatic latent image is developed. Generally, the photosensitive member is rotatably set on a drum frame.

[0005] When the developing box is not developing, in order to prevent the developing member from being in contact with the photosensitive member for a long time, which may cause the surface of the photosensitive member to be contaminated or the developing member to be deformed, a separation mechanism is provided on the drum frame, and a component for receiving a separation force is provided in the developing box. When the developing box is not developing, the separation force can force the developing member and the photosensitive member to separate from each other. When the developing box needs to be developed again, the developing member and the photosensitive member contact each other again.

[0006] In addition, the developing part needs to maintain a certain voltage when working, and a receiving electrode needs to be provided on the developing box to supply power to the developing part. The developing part is also supported by a developing bracket made of a conductive material, and the developing bracket is electrically connected to the electrode. U.S. patent application US20220357683A1 discloses a developing box, whose electrode structure includes a first end, a second end, and a through hole portion between the two ends. The first end is rotatably connected to the developing part shaft, and the second end is provided with a convex portion that can move in the slide groove on the end face of the developing box with the first end as the rotation axis. After the developing box is installed on the electronic photographic imaging device, the separation mechanism provided on the drum frame is inserted into the through hole of the electrode. When the developing box is not working, the electronic photographic imaging device pushes the electrode and then pushes the developing box to move in a direction away from the photosensitive member to achieve the separation of the developing member and the photosensitive member.

[0007] Since this type of developer box has the disadvantages of complex electrode structure and high requirements for structural matching accuracy between various components, the manufacturing cost of the entire developer box is increased. The developer bracket is generally formed by injection molding, and its molding cost is also relatively complex and expensive. In addition, since the electrode of the developer box is small in size and may rotate around the rotation axis in the slide groove, it is difficult to match the electrode and the separation component during installation, and collision and obstruction are likely to occur, so that the electrode and the separation component are prone to wear, which reduces the service life of the developer box and the drum frame. Utility Model Content

[0008] Therefore, the purpose of the utility model is to provide a developing box which has a simple structure, is easy to install and can separate the developing part from the photosensitive part through electrodes.

[0009] To achieve this purpose, the utility model adopts the following technical solutions:

[0010] A developing box, used to be installed on a drum box provided with a photosensitive member, and the developing box is installed on an imaging device after being combined with the drum box; the drum box includes a shell and a conductive component and a separation member arranged at one end of the shell, the photosensitive member is rotatably arranged in the shell, and the conductive component is used to receive power from the imaging device; the developing box includes a box body and a developing member rotatably arranged in the box body, and the developing member has a developing shaft; the separation member is used to receive pressure applied by the imaging device to force the developing member and the photosensitive member to separate from each other; the developing box also includes a developing bracket and a power transmission member formed in one piece or in a separate piece, the developing bracket is used to support the developing member, the power transmission member is used to electrically connect the conductive component and the developing shaft, and a part of the power transmission member is used to enter between the conductive component and the separation member; when the developing bracket and the power transmission member are formed separately, the developing bracket is made of non-conductive material; when the developing bracket and the power transmission member are formed in one piece, the power transmission member is not provided with a through hole for inserting the separation member.

[0011] Specifically, the conductive component includes a pushing member, a first elastic member and a first conductive member, wherein the power of the imaging device is transmitted to the developing box through the first conductive member, the first elastic member and the pushing member, and the power transmission member abuts against at least one of the first conductive member, the first elastic member and the pushing member.

[0012] Preferably, the power transmission member includes an electrode and a second conductive member, the second conductive member is connected to the developing shaft and the electrode respectively, and the electrode is clamped and positioned by the separation member and the pushing member.

[0013] In one embodiment, when the developing bracket and the power transmission component are formed integrally, the power transmission component is an electrode including a protrusion, a connecting portion and a sleeve portion, the sleeve portion is sleeved outside the developing shaft, the protrusion is clamped and positioned by a separation member and a pushing member, and the connecting portion connects the protrusion and the sleeve portion.

[0014] In one embodiment, the second conductive member is a torsion spring that applies a force toward the developing shaft and the electrode so that the two move closer to each other.

[0015] In one embodiment, the electrode is movable between a retracted position and an extended position, and the electrode is in the retracted position when the developer cartridge is installed toward the drum cartridge.

[0016] In one embodiment, the developing box further includes a push-receiving member and a third elastic member, the push-receiving member is pushably mounted on the box body, and the third elastic member is used to apply an elastic force toward the inside of the box body to the electrode.

[0017] In one embodiment, the developing box also includes a fourth elastic member, the pushed member includes a pushing inclined surface located on the front side of the installation direction, a pushed portion located on the rear side of the installation direction and a fixed seat abutting against the fourth elastic member, the electrode has an inclined surface abutting against the pushing inclined surface, the fourth elastic member is used to apply an elastic force opposite to the installation direction to the pushed member, and the pushed portion is used to contact with a pushing structure provided on the drum box and be pushed forward.

[0018] In one embodiment, the developing box further includes a push member and a third elastic member, the push member is rotatably mounted on the box body, and the third elastic member is used to apply an elastic force toward the inside of the box body to the electrode.

[0019] In one embodiment, the developing box also includes a fourth elastic member, the pushed member includes a pushing inclined surface located on the front side of the installation direction, a pushed portion located on the rear side of the installation direction, and a fixed seat abutting against the fourth elastic member, the electrode has an inclined surface abutting against the pushing inclined surface, the fourth elastic member is used to apply an elastic force opposite to the installation direction to the pushed member, and the pushed portion is used to contact with the machine compartment door of the imaging device and be pushed forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A It is a stereogram of the existing first drum box.

[0021] Figure 1B It is a stereogram of the existing second drum box.

[0022] Figure 1C and Figure 1D It is a three-dimensional diagram of the conductive structure of an existing drum box.

[0023] Figure 2 It is a three-dimensional diagram of a developing box with a first driving end structure involved in the utility model.

[0024] Figure 3A It is an exploded schematic diagram of the driving end parts of the developing box with the first driving end structure involved in the utility model.

[0025] Figure 3BIt is a side view of the developing box with the first driving end structure involved in the utility model when viewed from the driving end to the non-driving end along the second direction.

[0026] Figure 4A It is a stereoscopic diagram of a developing box with a first driving end structure involved in the utility model after being combined with a drum box.

[0027] Figure 4B It is a side view of the developer box with the first driving end structure of the utility model after being combined with the drum box, when viewed from the driving end to the non-driving end along the first direction.

[0028] Figure 5 It is a three-dimensional diagram of a developing box with a second driving end structure involved in the utility model.

[0029] Fig. 6A It is a stereoscopic diagram of a developing box with a second driving end structure involved in the utility model after being combined with a drum box.

[0030] Figure 6B It is a side view of the developer box with the second driving end structure of the utility model after being combined with the drum box, when viewed from the driving end to the non-driving end along the first direction.

[0031] Figure 7 It is a stereoscopic diagram of a developer box with a first non-driving end structure involved in the utility model and a drum box after being combined.

[0032] Figure 8 It is a stereoscopic diagram of a developing box with a second non-driving end structure involved in the utility model after being combined with a drum box.

[0033] Fig. 9 It is a three-dimensional diagram of a developing box with a third non-driving end structure involved in the utility model after being combined with a drum box.

[0034] Fig.10 It is a three-dimensional diagram of a developing box with a fourth non-driving end structure involved in the utility model after being combined with a drum box.

[0035] Fig.11 It is a three-dimensional diagram of the non-driving end after the developing box and the drum box involved in the utility model are combined.

[0036] Fig.12 It is a schematic diagram of a processing box with a first power supply structure of the utility model.

[0037] Fig.13 It is a structural schematic diagram of a drum frame in a processing box with a first power supply structure of the utility model.

[0038] Fig.14It is a schematic diagram of the structural decomposition of a drum frame in a processing box with a first power supply structure of the utility model.

[0039] Fig.15 It is a structural schematic diagram of a developing box in a processing box with a first power supply structure of the utility model.

[0040] Fig.16 It is a schematic diagram of the lateral structure of a developing box in a processing box with a first power supply structure of the utility model.

[0041] Fig.17 It is a schematic diagram of the structure of the processing box of the utility model with the second power supply structure.

[0042] Fig.18 It is a structural schematic diagram of a drum frame in a processing box with a second power supply structure of the utility model.

[0043] Fig.19 It is a structural schematic diagram of a developing box in a processing box with a second power supply structure of the utility model.

[0044] Fig. 20 It is a structural schematic diagram of the electrode of the developing box in the processing box with the second power supply structure of the utility model.

[0045] Fig.21 It is a schematic diagram of a processing box with a third power supply structure of the utility model.

[0046] Fig. 22 It is a structural schematic diagram of a drum frame in a processing box with a third power supply structure of the utility model.

[0047] Fig.23 It is a structural schematic diagram of a developing box in a processing box with a third power supply structure of the utility model.

[0048] Fig.24A It is a structural schematic diagram of a push-receiving member and an electrode of a developing box in a processing box with a third power supply structure of the utility model.

[0049] Fig. 24B It is a schematic diagram of the developing part and the photosensitive part contacting each other after the drum frame in the processing box with the third power supply structure of the utility model is hidden.

[0050] Fig.25 It is a schematic diagram of a processing box with a fourth power supply structure of the utility model.

[0051] Fig.26 It is a structural schematic diagram of a drum frame in a processing box with a fourth power supply structure of the utility model.

[0052] Fig. 27It is a structural schematic diagram of a developing box in a processing box with a fourth power supply structure of the utility model.

[0053] Fig.28 It is a structural schematic diagram of a push-receiving member and an electrode of a developing box in a processing box with a fourth power supply structure of the utility model.

[0054] Fig.29 It is a schematic diagram of a processing box with a fifth power supply structure of the utility model.

[0055] Fig.30 It is a structural schematic diagram of a drum frame in a processing box with a fifth power supply structure of the utility model.

[0056] Fig.31 It is a structural schematic diagram of a developing box in a processing box with a fifth power supply structure of the utility model.

[0057] Fig.32 It is a structural schematic diagram of a push-receiving member and an electrode of a developing box in a processing box with a fifth power supply structure of the utility model. DETAILED DESCRIPTION

[0058] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0059]

First Drum Box

[0060] Figure 1A It is a stereogram of the existing first drum box.

[0061] The first drum box 100 includes a first shell 1 and a photosensitive member 11 rotatably mounted in the first shell 1. For ease of description and understanding, it is defined that the direction of the rotation axis of the photosensitive member 11 is the first direction, the second direction intersects with the first direction, and the third direction intersects with the first direction and the second direction at the same time. The first shell 1 extends along the first direction. Along the second direction, the photosensitive member 11 is located at one end of the first shell 1. Along the first direction, one end of the photosensitive member 11 receives a driving force from the imaging device. Therefore, the end of the photosensitive member 11 for receiving the driving force can be called the driving end F, and the end opposite to the driving end F can be called the non-driving end E.

[0062] Along the second direction, the first shell 1 also includes a developer box accommodating portion 12 arranged adjacent to the photosensitive member 11. Along the first direction, the drum box 100 also includes a left side wall 1a and a right side wall 1b respectively arranged at the two ends of the first shell 1 and a forced pushing component 13 arranged at at least one of the two ends of the first shell 1. The forced pushing component 13 can be directly arranged on the left side wall 1a and / or the right side wall 1b, or can be arranged adjacent to the left side wall 1a and / or the right side wall 1b. When the developer box is installed to the developer box accommodating portion 12, the forced pushing component 13 is used to force the developer box toward the photosensitive member 11 so that the developer described below maintains contact with the photosensitive member 11; the developer box accommodating portion 12 is located between the left side wall 1a and the right side wall 1b, and has a bottom plate 1c for supporting the developer box, wherein the left side wall 1a is located at the driving end F, the right side wall 1b is located at the non-driving end E, and the bottom plate 1c is located between the left side wall 1a and the right side wall 1b.

[0063] Preferably, the left side wall 1a is provided with a left forced push assembly 13a, and the right side wall 1b is provided with a right forced push assembly 13b. The left forced push assembly 13a and the right forced push assembly 13b act simultaneously, so that the force on the developing box is more uniform, which is more conducive to maintaining good contact between the developing part and the photosensitive part 11.

[0064] More preferably, the left forced push component 13a and the right forced push component 13b have the same structure. As shown in the figure, the left forced push component 13a is provided with a left forced push member 13a1 abutting against each other and a first elastic member 23b2 described below, and the right forced push component 13b is provided with a right forced push member 13b1 abutting against each other and a first elastic member 23b2 described below, thereby, the left forced push member 13a1 and the right forced push member 13b1 can both move relative to the first shell 1.

[0065] Furthermore, the first drum box 100 also includes a pressing member 14 arranged at the driving end F or the non-driving end E. When the developer box is installed in the developer box accommodating portion, the pressing member 14 presses the developer box along the third direction to prevent the developer box from falling off from the developer box accommodating portion 12; as shown in the figure, the pressing member 14 is configured to be rotatable around a first axis 1b1 extending in a first direction and has a rotation axis L14 parallel to the first direction. The first axis 1b1 extends from the left side wall 1a or the right side wall 1b along the first direction toward the developer box accommodating portion 12. The pressing member 14 includes a base 140, a force-bearing portion 141 and a pressing portion 142. The base 140 is rotatably combined with the first axis 1b, and the force-bearing portion 141 and the pressing portion 142 can rotate with the rotation of the base 140. When the developer box needs to be removed from the developer box accommodating portion, the user presses the force-bearing portion 141 to rotate the pressing member 14, thereby releasing the pressure of the pressing portion 142 on the developer box.

[0066] As described in the background art, some drum cartridges are also provided with an identification portion (protrusion). When the developer cartridge is installed in the developer cartridge accommodating portion 12, the identification portion cooperates with a preset identification portion of the developer cartridge, and not only can the model of the developer cartridge be determined according to the size or position of the identification portion or the identification portion, but also the developer cartridge can be kept in a predetermined position. Figure 1A As shown, a protrusion 15 as an identification portion is arranged at the driving end F, and the protrusion 15 extends along the third direction. A hole allowing the protrusion 15 to enter is also provided in the developing box, and the hole is the identification portion.

[0067]

Second drum box

[0068] Figure 1B It is a stereogram of the existing second drum box.

[0069] The second drum cartridge 200 has substantially the same structure as the first drum cartridge 100. Figure 1B As shown, the second drum box 200 includes a second shell 2 and a photosensitive member 21 rotatably installed in the second shell 2. Along the first direction, the second shell 2 has a left side wall 2a and a right side wall 2b that are relatively arranged, and a developer box accommodating portion 22 located between the left side wall 2a and the right side wall 2b, and the developer box accommodating portion 22 has a bottom plate 2c that can support the developer box, and the bottom plate 2c is located between the left side wall 2a and the right side wall 2b. The second drum box 200 also includes a pushing assembly 23 for pushing the developer box toward the photosensitive member 21, and the pushing assembly 23 includes a left pushing assembly 23a arranged at the driving end and / or a right pushing assembly 23b arranged at the non-driving end, and the left pushing assembly 23a is provided with a left pushing member 23a1 that can move relative to the second shell 2, and the right pushing assembly 23b is provided with a right pushing member 23b1 that can move relative to the second shell 2.

[0070] Furthermore, the second drum box 200 also includes a pressure piece 24 arranged at the driving end F or the non-driving end E, and the pressure piece 24 includes a base 240, a force-bearing portion 241 and a pressure portion 242. The base 240 is rotatably combined with the second shaft 2b, and the force-bearing portion 241 and the pressure portion 242 can rotate with the rotation of the base 240; the pressure piece 24 is used to prevent the developer box from detaching from the developer box accommodating portion 22. As shown in the figure, the pressure piece 24 is configured to be rotatable around a second shaft 2b1 extending in a first direction and having a rotation axis L24 parallel to the first direction. The second shaft 2b1 extends from the left side wall 2a or the right side wall 2b along the first direction toward the developer box accommodating portion 22. Unlike the first drum box 100, the second shaft 2b1 extends longer than the first shaft 1b1. By setting the first shaft 1b1 and the second shaft 2b1 to have different lengths, the purpose of identifying the developer box model can also be achieved. Therefore, the first shaft 1b1 and the second shaft 2b1 can also be regarded as identification parts.

[0071] Similar to the first drum box 100, the second drum box 200 can also be provided with a protrusion 25 extending along the third direction as an identification portion. It can be seen that for the drum box, the protrusion 15 / 25 extending along the third direction can be provided as the identification portion, or the first axis 1b1 and the second axis 2b1 can be used as the identification portion.

[0072]

Conductive structure of drum cartridge

[0073] Figure 1C and Figure 1D It is a three-dimensional diagram of the conductive structure of an existing drum box.

[0074] The first drum box 100 and the second drum box 200 have the same conductive structure, and the conductive structure thereof will be described herein in conjunction with the second drum box 200.

[0075] The second drum box 200 also includes a conductive component arranged at one end of the second shell 2 along the first direction. In the existing drum box, the forced pushing component 23 needs to be arranged to abut against the developing box. Therefore, using the forced pushing component 23 to receive power from the imaging device and supply it to the developing box is a way to simplify the developing box structure and the imaging device structure. The right forced pushing component 23b of the second drum box is described as a conductive component below.

[0076] As shown in the figure, the second drum box 200 also includes a first fixing portion 2b2 arranged on the second shell 2, and the conductive component 23b includes a forced pushing member (right forced pushing member) 23b1, a first elastic member 23b2 and a first conductive member 23b3. Along the third direction, the first conductive member 23b3 extends through the bottom plate 2c, or in other words, along the third direction, the first conductive member 23b3 faces the side of the bottom plate 2c where the developing box accommodating portion 22 is not arranged. The first elastic member 23b2 is made of a conductive material, preferably a metal elastic member, and the forced pushing member 23b1 is made of a conductive material. The first elastic member 23b2 forces the forced pushing member 23b1 toward the direction close to the photosensitive member 21. When the developer box is installed in the developer box accommodating portion, the pushing member 23b1 is squeezed in the direction away from the photosensitive member 21, and the first elastic member 23b2 is elastically deformed to force the pushing surface 23b11 located in front of the pushing member 23b1 to abut against the developer box, so that the power of the imaging device can be transmitted to the developer box through the first conductive member 23b3, the first elastic member 23b2 and the pushing member 23b1; in some embodiments, the pushing member 23b1 does not have to be made entirely of conductive material, but only part of it is made of conductive material, for example, all or part of the pushing surface 23b11 facing the front / photosensitive member is made of conductive material.

[0077] Furthermore, the conductive component 23b is also provided with an anti-detachment portion 23b4 for preventing the forced pushing member 23b1 from detaching from the first fixed portion 2b2. For example, the anti-detachment portion 23b4 is configured as a buckle connected to the forced pushing member 23b1, or is configured as a friction member on the forced pushing member 23b1; according to production needs, the first fixed portion 2b2 also has an exposure opening 2b3 for exposing the anti-detachment portion 23b4, through which at least a portion of the first conductive member 23b3, the first elastic member 23b2 and at least a portion of the forced pushing member 23b1 can be observed.

[0078]

Developer box

[0079] According to the above description, the developer cartridge applicable to the first drum cartridge 100 is different from the developer cartridge applicable to the second drum cartridge 200. This design brings inconvenience to both manufacturers and users. The following introduces a developer cartridge that can be used in both the first drum cartridge 100 and the second drum cartridge 200. For the protrusion 15 / 25 arranged at one end in the first direction of the drum cartridge and the first axis 1b1 / second axis 1b2 and the pressing member 14 / 24 arranged at the other end of the drum cartridge, the following describes the optimization implementation plans of the corresponding structures of the developer cartridge. It should be understood that the optimization scheme proposed for the developer cartridge structure combined with the protrusion 15 / 25, the optimization scheme proposed for the developer cartridge structure combined with the first axis 1b1 / second axis 1b2, and the optimization scheme proposed for the developer cartridge structure combined with the pressing member 14 / 24 are not necessarily implemented independently. These optimization schemes can be used in combination with each other to achieve the desired purpose.

[0080] [The first drive end structure]

[0081] Figure 2 It is a three-dimensional diagram of a developing box with a first driving end structure involved in the utility model; Figure 3A It is an exploded schematic diagram of the driving end parts of the developing box with the first driving end structure involved in the utility model; Figure 3B It is a side view of the developer box with the first driving end structure involved in the utility model when viewed from the driving end to the non-driving end along the second direction;

[0082] Figure 4A It is a three-dimensional diagram of the developer box with the first driving end structure involved in the utility model after being combined with the drum box; Figure 4B It is a side view of the developer box with the first driving end structure of the utility model after being combined with the drum box, when viewed from the driving end to the non-driving end along the first direction.

[0083] In this structural scheme, the second drum box 200 is used as an example for explanation. The developer box 300 can be detachably installed in the developer box accommodating portion 22 of the drum box, and has the above-mentioned first direction, second direction and third direction. Preferably, the installation direction of the developer box 300 is parallel to the second direction. As shown in the figure, the developer box 300 includes a developer housing 3 for accommodating developer, a rotating member rotatably installed in the developer housing 3, a driving force receiving member 32 and a driving force transmission assembly 33. Along the first direction, the developer housing 3 has a left surface 3a at the driving end F and a right surface 3b at the non-driving end E (as shown in FIG. 1 ). Figure 7 As shown), wherein the rotating member 31 at least includes a developing member 31 for conveying the developer toward the photosensitive member 21, and a driving force receiving member 32 is farther away from the developing housing 3 than the left surface 3a, and is used to receive the driving force from the imaging device, and the driving force is transmitted to the developing member 31 through the driving force transmission component 33.

[0084] The developing member 31 includes a developing shaft 311 and a developing layer 312 coated on the outer surface of the developing shaft 311. Furthermore, the rotating member also includes a supply member (not shown) for supplying developer to the developing member and a stirring member (not shown) for stirring the developer. Along the installation direction of the developing box, the stirring member, the supply member and the developing member 31 are arranged in sequence from upstream to downstream; the driving force receiving member 32 and the driving force transmission component 33 are both arranged at the driving end F, and the driving force transmission component 33 includes a first transmission member 331 combined with the driving force receiving member 32, a second transmission member 332 arranged at the end of the developing member 31, a third transmission member 333 arranged at the end of the supply member, and a fourth transmission member 335 arranged at the end of the stirring member. The second transmission member 332, the third transmission member 333, and the fourth transmission member 335 can be combined with the first transmission member 331 at the same time, and can also be combined through an intermediate transmission member. Preferably, the first transmission member 331, the second transmission member 332, the third transmission member 333 and the fourth transmission member 335 are all set as gears, and the second transmission member 332 and the third transmission member 333 are combined with the first transmission member 331 at the same time, and the fourth transmission member 335 and the first transmission member 331 are combined through an intermediate transmission member 334 set as a gear. When the driving force receiving member 32 receives the driving force, the developing member 31, the supply member and the stirring member can be driven to rotate, wherein the stirring member and the fourth transmission member 335 rotate around the rotation axis L335.

[0085] Further, the developing box 300 also includes a driving end cover 34 disposed on the same side as the driving force receiving member 32, and the driving end cover 34 includes a front end cover 34a and a rear end cover 34b separated from each other. Along the first direction, at least the driving force receiving member 32 is exposed through the front end cover 34a, and the front end cover 34a and the rear end cover 34b are both combined with the housing 3. Along the installation direction, the front end cover 34a is located downstream of the rear end cover 34b. After the driving end cover 34 is installed, at least a portion of the fourth transmission member 335 is covered by the front end cover 34a. Preferably, along the installation direction, at least a portion downstream of the rotation axis L335 of the fourth transmission member 335 is covered by the front end cover 34a. This design can simplify the overall structure of the end cover 34, facilitate the installation of the end cover 34, and is conducive to protecting the driving force transmission component 33.

[0086] In some embodiments, the developer box 300 also includes a chip assembly 36 disposed at the driving end F. When the developer box 300 is installed in an imaging device independently or in combination with a drum box, the chip assembly 36 is used to establish a communication connection with the imaging device. The chip assembly 36 includes a substrate 361, a storage portion (not shown) disposed on the substrate, and an electrical contact portion 362 electrically connected to the storage portion. The storage portion stores various parameter information of the developer box 300, and the electrical contact portion 362 is used to abut / electrically connect with a contact pin of the imaging device; in practice, the electrical contact portion 362 can be disposed on the substrate 361 or at other positions of the developer box according to design requirements. Generally speaking, in the chip assembly 36, at least the electrical contact portion 362 is disposed on the rear end cover 34b, and thus, the rear end cover 34b can be regarded as a support member for the chip assembly 36 / electrical contact portion 362.

[0087] Furthermore, the front end cover 34a has a tail portion 34a1 located at the rear of the installation direction. After the driving end cover 34 is installed, the tail portion 34a1 is adjacent to the rear end cover 34b, and at least a portion of the fourth transfer member 335 is covered by the tail portion 34a1. Along the first direction, the rear end cover 34b is farther away from the developing housing 3 / left surface 3a than the tail portion 34a1. Therefore, a avoidance space (an identifiable portion) 35 will be formed between the tail portion 34a1 and the rear end cover 34b. Specifically, along the second direction, the avoidance space 35 is located between the driving force receiving member 32 and the rear end cover 34b / chip component support member, or in other words, the avoidance space 35 is located between the driving force receiving member 32 and the electrical contact portion 362; preferably, at least a portion of the fourth transfer member 335 is covered by the tail portion 34a1; it can be understood that along the first direction, the end cover 34 can form the avoidance space 35, and along the second direction, the end cover 34 can also form the avoidance space 35.

[0088] like Figure 4A As shown, when the developing cartridge 300 is mounted to the second drum cartridge 200, the protrusion 25 enters the escape space 35, as shown in FIG. Figure 4BAs shown, the protrusion 25 is opposite to the fourth transmission member 335, and further, the rotation axis L335 of the fourth transmission member 335 is opposite to the protrusion 25. Compared with the existing hole in the developer box that matches the protrusion 25, the avoidance space 35 is larger, which is more conducive to the smooth entry of the protrusion 25. At the same time, the manufacturing accuracy requirement of the driving end cover 34 is also reduced; it can be understood that the developer box 300 provided with the avoidance space 35 is applicable to both the drum box provided with the protrusion 25 and the drum box without the protrusion 25, so the developer box 300 can be universally used.

[0089] [The second drive end structure]

[0090] Fig. 6A It is a three-dimensional diagram of the developer box with the second driving end structure involved in the utility model after being combined with the drum box; Figure 6B It is a side view of the developer box with the second driving end structure of the utility model after being combined with the drum box, when viewed from the driving end to the non-driving end along the first direction.

[0091] Different from the above-mentioned scheme, after the front end cover 34a in this scheme is installed, along the installation direction, at least the rotation axis L335 of the fourth transmission member 335 and its upstream part are not covered by the front end cover 34a and are exposed. At this time, along the installation direction, the tail portion 34a1 will no longer be adjacent to the rear end cover 34b, but an escape space 35 is still formed between the tail portion 34a1 and the rear end cover 34b. Specifically, along the first direction, the escape space 35 is located between the driving force receiving member 32 and the rear end cover 34b, or in other words, the escape space 35 is located between the driving force receiving member 32 and the electrical contact portion 362. When the developing box is combined with the drum box, the protrusion 25 enters the escape space 35, which also enables the developing box to have the above-mentioned versatility.

[0092] In this solution, the front end cover 34a is configured to no longer cover the entire fourth transfer member 335, but to expose at least the rotation axis L335 of the fourth transfer member 335 and its upstream portion. Along the first direction, the size of the avoidance space 335 will be further increased, thereby making it easier for the protrusion 25 to smoothly enter the avoidance space 35.

[0093] As a variation of this solution, the rear end cover 34b may also be formed integrally with the developing housing 3, such as Fig. 6A As shown, along the first direction, the rear end cover 34b is protruded from the developing housing 3. Preferably, along the third direction, the size of the rear end cover 34b is reduced, but at least the electrical contact portion 362 in the chip assembly 36 is still supported by the rear end cover 34b. Therefore, the rear end cover 34b at this time can still be regarded as a support member of the chip assembly 36 / electrical contact portion 362, or in other words, the rear end cover 34b is omitted, and the support member is formed integrally with the developing housing 3.

[0094] [The first non-drive end structure]

[0095] Figure 7 It is a stereoscopic diagram of a developer box with a first non-driving end structure involved in the utility model and a drum box after being combined.

[0096] The present solution is explained by taking the first drum box 100 as an example. As shown in the figure, along the first direction, a vacant portion (another identifiable portion) S1 is formed between the right surface 3b of the developing housing 3 and the first axis 1b1. That is, when the developing box is combined with the drum box, along the first direction, the right surface 3b is opposite to the first axis 1b1, but the first axis 1b1 is not combined with the developing housing 3. Similar to the above-mentioned avoidance space 35, the provision of the vacant portion S1 can ensure that the developing box can be installed more smoothly, reducing the interference between the developing housing 3 and the drum box that may occur during the installation of the developing box.

[0097] Furthermore, the pressure piece 14 in this solution is fixedly arranged on the first housing 1, and no longer rotates around the first axis 1b1. Specifically, the base 140 is fixed to the first housing 1, and the force-bearing portion 141 originally used to receive the pressing force will no longer function. At this time, a release piece for releasing the pressure / combination of the pressure piece 14 on the developing box is arranged on the developing box. As shown in the figure, the action component 37 for combining and releasing the combination with the drum box is arranged at the non-driving end E of the developing housing 3. When the developing box is installed in the developing box accommodating portion 12, the developing box is combined with the pressure piece 14 by the action component 37 and is retained in the developing box accommodating portion 12. When the developing box needs to be removed, the user operates the action component 37, and the pressure / combination of the pressure piece 14 on the developing box is released.

[0098] Specifically, the action component 37 includes a force-bearing member 371 that can slide relative to the developing housing 3, an elastic member 372 that abuts against the force-bearing member 371, and a coupling member 373 that can move with the force-bearing member 371. Preferably, the coupling member 373 is formed integrally with the force-bearing member 371, the coupling member 373 is configured as a force block protruding from the force-bearing member 371, and the elastic member 372 is configured as an elastic member for forcing the force-bearing member 371 toward a direction close to the pressure member 14. More preferably, the elastic member 372 applies a pushing force to the force-bearing member 371 along a first direction; preferably, the action component 37 also includes a second fixing portion 374 for accommodating the force-bearing member 371 and the elastic member 372, a portion of the force-bearing member 371 is exposed outwardly from the second fixing portion 374 for receiving the pressing force applied by the user, and thus, the force-bearing member 371 is a releasing member.

[0099] When the developing box is installed in the developing box accommodating portion 12, the pressing portion 142 is in contact with and maintained by the force block 373. When the developing box needs to be taken out, the user applies a pressing force to the force member 371 along the first direction to overcome the elastic force of the elastic member 372. The elastic member 372 is elastically deformed, and the force member 371 drives the force block 373 to be forced to slide toward the developing housing 3 / right surface 3b, so that the pressing portion 142 is disengaged from the force block 373 to release the pressure of the pressing member 14 on the developing box; when the pressing force applied to the force member 371 is cancelled, the elastic member 372 releases the elastic force, and along the first direction, the force block 373 slides again in the direction away from the developing housing 3 / right surface 3b and resets.

[0100] It can be seen that in this embodiment, the force block 373 is configured to slide along the first direction. Accordingly, the second fixed portion 374 only has a guide track for guiding the force block 373 to slide. Under the action of the elastic member 372, the force block 373 can be extended and retracted along the guide track.

[0101] [The second non-drive end structure]

[0102] Figure 8 It is a stereoscopic diagram of a developing box with a second non-driving end structure involved in the utility model after being combined with a drum box.

[0103] The present solution is described by taking the second drum cartridge 200 as an example. Overall, the active component 37 in the present solution is substantially the same as the above solution, except that the elastic member 372 in the present solution is configured as an elastic sheet that can be elastically deformed. For example, the elastic member 372 is formed by folding a plastic sheet or a metal sheet at least once. Figure 8 The figure shows an elastic member 372 folded once into a V-shape. At this time, a portion of the elastic member 372 itself can be used as a force-bearing member 371 for receiving the pressing force. The force-bearing member 371 is formed by protruding from the elastic member 372. A force-bearing block 373 for combining with the compression portion 242 can also be directly set on the elastic member 372, so that the movement of the force-bearing member 371 will no longer be sliding.

[0104] When the developing box needs to be removed, the user applies a pressing force to the force-bearing member 371 along the first direction to overcome the elastic force of the elastic member 372, causing the elastic member 372 to undergo elastic deformation, and at the same time, the force block 373 is also driven to move toward the developing housing 3 / right surface 3b, thereby releasing the pressure of the pressure member 14 on the developing box; when the pressing force applied to the force-bearing member 371 is cancelled, the elastic member 372 releases the elastic force, and along the first direction, the force block 373 slides again toward the direction away from the developing housing 3 / right surface 3b and resets.

[0105] Similar to the above solution, along the first direction, the vacant portion S1 is also formed between the right surface 3b of the developing housing and the second shaft 2b1 in this solution, which also achieves the purpose of making the developing box universal and smoothly installed.

[0106] [The third non-drive end structure]

[0107] Fig. 9 It is a three-dimensional diagram of a developing box with a third non-driving end structure involved in the utility model after being combined with a drum box.

[0108] This scheme is still explained by taking the second drum box 200 as an example. The acting component 37 in this scheme is fixedly arranged on the developing shell 3. Specifically, the acting component 37 includes a force block 373 fixedly connected to the developing shell 3. The pressure piece 24 is rotatably installed on the drum box. The elastic piece 372 is also installed on the drum box and abuts against the pressure piece 24. Under the elastic force of the elastic piece 372, the pressure piece 24 presses the force block 373. When the developing box needs to be removed, the user applies pressing pressure to the pressure piece 24 to release the pressure of the pressure piece 24 on the force block 273. Therefore, a part of the pressure piece 24 in this scheme can be regarded as the force piece 371.

[0109] Based on the inventive concept of this embodiment, the elastic member 372 can be set as a compression spring, one end of which abuts against the force-bearing part 241, and the abutting position of the other end does not need to be limited, as long as the pressure member 24 can compress the force-bearing block 373 under the action of the elastic member 372; the elastic member 372 can also be set as a tension spring, one end of which is connected to the compression part 242, and the connection position of the other end does not need to be limited, as long as the pressure member 24 can compress the force-bearing block 373 under the action of the elastic member 372; the elastic member 372 can be set as a torsion spring, one end of which abuts against the pressure member 24, and the abutting position of the other end does not need to be limited, as long as the pressure member 24 can compress the force-bearing block 373 under the action of the elastic member 372.

[0110] like Fig. 9As shown, the pressure member 24 is rotatably mounted on the second shell 2 through the base 240, and along the first direction, the force-bearing portion 241 / force-bearing portion 371 and the pressure portion 242 are respectively located on both sides of the base 240, that is, along the first direction, the force-bearing portion 241 / force-bearing portion 371 is farther away from the developing shell 3 / developing box accommodating portion 22 than the pressure portion 242, and the base 240 is configured to rotate around a rotation axis L24 intersecting with the first direction, preferably, the rotation axis L24 is perpendicular to the first direction, and more preferably, the force-bearing portion 241 / force-bearing portion 371 is located on the outside of the second shell 2, and the user can conveniently apply pressing force to the force-bearing portion 241 / force-bearing portion 371 to release the pressure of the pressure portion 242 on the force block 273, and thus, a part of the force-bearing portion 24 is also formed as an unlocking member of the acting component 37.

[0111] like Figure 1A and Figure 1B As shown in the figure, the force-bearing part 141 / 241 and the pressing part 142 / 242 are distributed along the installation direction, and the force-bearing part 141 / 241 is located upstream of the pressing part 142 / 242 in the installation direction. When the user uses the drum box, the force-bearing part 141 / 241 is closer to the user than the pressing part 142 / 242, and the user needs to put his hand between the pressing member 24 and the body to press the force-bearing part 141 / 241; and the force-bearing member 24 in this solution is arranged so that the force-bearing part 241 and the pressing part 242 are arranged upstream of the installation direction. The force-bearing portion 241 is distributed in a direction intersecting with the installation direction, and the force-bearing portion 241 is farther away from the developing box accommodating portion 22 than the pressing portion 242. When the user uses the drum box, the user can naturally move the hand from the outside of the second shell 2 along the first direction toward the direction close to the second shell 2, and finally place the hand on the force-bearing portion 241. Compared with the operation method of the existing drum box pressing piece, when operating the drum box involved in this solution, the user's hand has a larger space for movement, and the user's hand is placed more naturally, and the user's experience can be improved.

[0112] [The fourth non-drive end structure]

[0113] Fig.10 It is a three-dimensional diagram of a developing box with a fourth non-driving end structure involved in the utility model after being combined with a drum box.

[0114] This scheme still takes the second drum box 200 as an example for explanation. Similar to the structure described in the above-mentioned [third non-drive end structure], the action component 37 in this scheme still sets the compressed force block 373 on the developing shell 3, and the unlocking member for compressing and releasing the compression is also movably set on the drum box.

[0115] like Fig.10As shown, the pressing member 24 includes a base 240, a force-bearing portion 241 and a pressing portion 242 connected to the base 240, and an elastic member (not shown) abutting against the base 240, wherein the elastic member is used to force the pressing member 24 toward a direction close to the developer cartridge accommodating portion 22. When the developer cartridge is installed in the developer cartridge accommodating portion 22, the pressing portion 242 is pushed by the elastic member and abuts against the force block 373 in a third direction. When the developer cartridge needs to be taken out, the user pulls the force-bearing portion 241 in a first direction away from the developer cartridge accommodating portion 22, and the elastic member is elastically deformed, thereby releasing the combination of the pressing portion 242 and the force block 373. It can be seen that the force-bearing portion 241 can be regarded as the above-mentioned force-bearing portion 371 / unlocking member. When the user no longer pulls the force-bearing portion 241, the elastic member releases the elastic force, and the pressing member 24 moves again toward a direction close to the developer cartridge accommodating portion 22 and is reset.

[0116] The force-bearing portion 241 in this solution is arranged in a slidable manner along the first direction, and still has the beneficial effects of the above-mentioned [third non-driving end structure].

[0117] In combination with the above technical solution, the change that can be made is that the force-bearing portion 241 can also be arranged to slide along the second direction, the third direction, etc., as long as the pressure of the pressure portion 242 on the force-bearing block 373 can be released; further, the position of the force-bearing portion 241 does not have to be limited to the non-driving end E. For example, the force-bearing portion 241 can also be arranged at the driving end F, or in front of or behind the installation direction of the developing box, or above or below the developing box, or in the holding portion of the developing box for the user to take, etc., and a pressure transmission component can be provided between the force-bearing portion 241 and the pressure portion 242 to release the pressure of the pressure portion 242 on the force-bearing block 373.

[0118]

Conductivity of the developer cartridge

[0119] Fig.11 It is a three-dimensional diagram of the non-driving end after the developing box and the drum box involved in the utility model are combined.

[0120] Generally, the conductive component 23b of the developing box is arranged at the non-driving end, so as to reduce the influence of the vibration of the driving end on the conductive component 23b receiving power from the imaging device. When the developing box is installed into the developing box accommodating portion, the conductive component 23b abuts against the corresponding part of the developing box, and while pushing the developing box toward the photosensitive member, the conductive component 23b will also receive power supplied to the developing box.

[0121] In the existing developer box, the developer box is provided with a developer bracket 38 for supporting the developer 31, the developer bracket 38 is made of conductive material, and the pushing member 23b1 is also made of conductive material. The pushing member 23b1 is used to abut against the developer bracket 38. The power of the imaging device is transmitted to the developer bracket 38 through the first conductive member 23b3, the conductive first elastic member 23b2, and the pushing member 23b1. Finally, the developer bracket 38 supplies power to the developer 31. The developer bracket 38 is generally formed by injection molding. When the developer bracket 38 is made of conductive material, the molding of the developer bracket 38 will also become complicated and costly.

[0122] For this reason, the developing bracket 38 in the developing box involved in the utility model is no longer made of conductive material. For the conductive component 23b, the developing bracket 38 in the utility model only plays the role of receiving the thrust force, and no longer has the function of conducting electricity at the same time. Therefore, the manufacturing cost of the developing bracket 38 can be reduced.

[0123] like Fig.11 As shown, the developing box involved in the utility model also includes a power transmission component 39 installed in the developing shell 3, and the power transmission component 39 is electrically connected to the conductive component 23b and the developing component 31. The power transmission component 39 includes a positioning portion 390 and a power receiving portion 393 connected to the positioning portion 390 and a first power transmission portion 391, the power receiving portion 393 is electrically connected to the conductive component 23b, and the first power transmission portion 391 is electrically connected to the developing shaft 311.

[0124] Specifically, the power transmission member 39 is made of a conductive steel sheet, and the power receiving portion 393 can abut against at least one of the first conductive member 23b3, the first elastic member 23b2 and the forced pushing member 23b1 in the conductive component 23b. For example, the power receiving portion 393 enters the first fixed portion 2b2 from the exposed opening 2b3, or the power receiving portion 393 contacts the portion of the forced pushing member 23b1 outside the first fixed portion 2b2. When the power receiving portion 393 is configured to contact the forced pushing member 23b1, At the same time, since the pushing surface 23b11 in front of the pushing member 23b1 is used to abut against the developing bracket 38, preferably, the power receiving portion 393 contacts the surface other than the pushing surface 23b11. On the one hand, it can reduce the influence of the power receiving portion 393 on the abutment between the pushing surface 23b11 and the developing bracket 38, and on the other hand, it can reduce the position accuracy requirement of the power receiving portion 393, thereby avoiding the problem of power transmission interruption caused by the power receiving portion 393 abutting against the developing bracket 38 but not abutting against the pushing surface 23b11.

[0125] Furthermore, according to the working requirements of the developing box, the power transmission component 39 can also be provided with a second power transmission part 392 for supplying power to the supply component. In this way, the purpose of supplying power to the developing component 31 and the supply component at low cost is achieved simultaneously through the power transmission component 39.

[0126] The following describes a structure for supplying electric power to the developing shaft through the electric power transmission member and the conductive component. As mentioned above, the electric power transmission member can also supply electric power to the supply member at the same time.

[0127] [The first power supply structure]

[0128] like Fig.12 As shown, the process cartridge includes a developer cartridge A11 and a drum cartridge A12 which are installed together in a longitudinally consistent manner, a developer A31 and a photosensitive member A14 are parallel to each other and face each other, after the developer contained in the developer cartridge is used up, the developer cartridge A11 can be removed from the drum cartridge A12 and replaced with a new one, and the drum cartridge A12 does not need to be removed from the electrophotographic imaging device, and when the photosensitive member A14 or other components installed in the drum cartridge A12 reach the end of their service life, the drum cartridge A12 can also be removed from the electrophotographic imaging device to be replaced with a new one. The structures of the components of the process cartridge are described below.

[0129] like Fig.13 and Fig.14 As shown, the drum box A12 includes a photosensitive member A14 and a shell body A121, wherein the photosensitive member A14 is rotatably mounted on the shell body A121, and the two longitudinal ends of the shell body A121 are provided with accommodating grooves A1211 and A1212 for guiding the installation of the developing box A11 and accommodating the developing shaft A131, and an axis is provided at the bottom of the shell body A121, and a separation component A151 is provided at one end of the axis. It can be understood that the separation component A151 can also be provided at both ends of the axis. The pushing member A152 is arranged at one end of the shell A121 where the separation member A151 is arranged. The shell A121 is provided with a first fixed part A1213. A spring A153 for applying elastic force to the pushing member A152 is arranged as a first elastic member in the first fixed part A1213. The pushing member A152 is at least partially accommodated in the first fixed part A1213. The elastic member A153 shown in the figure is a compression spring, and one end of the elastic member A153 abuts against the pushing member A152.

[0130] like Fig.15 and Fig.16As shown, the developing box A11 includes a developing member A31 and a box body A111. Along the installation direction when installing to the drum box A12, the developing member A31 is arranged at the front side, and the developing shaft A131 protrudes to the end beyond the box body A111. The box body A111 has a developer accommodating portion for accommodating the developer, and a driving force transmission assembly is arranged at one end, and the driving end cover A112 is arranged outside the driving force transmission assembly. A mounting plate A113 is arranged at the other end of the box body A111, and the electrode A132 is mounted on the mounting plate A113. A fixing seat A1131 is also arranged on the mounting plate A113, and a torsion spring A133 as a second elastic member is installed thereon, and the torsion spring A133 is a second conductive member. The two ends A1331 and A1332 of the torsion spring A133 are respectively in contact with the developing shaft A131 and the electrode A132, and apply a force to the two to make the developing shaft A131 and the electrode A132 close to each other.

[0131] When the developing box A11 is installed to the drum box A12, the developing member A31 is installed to the drum box A12 in the installation direction in a manner that the developing member A31 is located at the front side. The developing shaft A131 protruding from the box body A111 is guided by the receiving grooves A1211 and A1212 to move forward and finally be received in the receiving grooves A1211 and A1212. The electrode A132 contacts the separation member A151 and the pushing member A152, and is finally clamped and positioned by the separation member A151 and the pushing member A152. The developing member A31 contacts the photosensitive member A14, and the process box can start working / developing. The electrode A132 receives power from the pushing member A152 and transmits it to the developing shaft A131 through the torsion spring A133, that is, the power transmission member in this embodiment includes the electrode A132 and the second elastic member / torsion spring A133. When the processing box installed in the electrophotographic imaging device is not working / not developing, the electrophotographic imaging device applies pressure to the separation member A151, and the separation member A151 pushes the electrode A132 and the entire box body A111 to move in a direction away from the photosensitive member A14, and the forced pushing member A152 is pushed to overcome the elastic force of the elastic member A153 and move into the first fixed portion A1213. When the separation member A151 does not apply pressure to the electrode A132, the developing box A11 returns to the position where the developing member A31 contacts the photosensitive member A14 under the action of gravity and the elastic force released by the elastic member A153, and the elastic force of the elastic member A153 pushes the forced pushing member A152 to return to the initial position and keep in contact with the electrode A132, and the processing box can start working / developing.

[0132] In this embodiment, the electrode A132 has a simple structure and is electrically connected to the developing shaft A131 through a torsion spring A133. The installation of the developing box A11 to the drum box A12 is simple and convenient, and the electrode is not easily worn, thereby increasing the service life of the developing box A11 and the processing box.

[0133] [The second power supply structure]

[0134] The structure of the process cartridge in this embodiment may be similar or identical to that in the above-described power supply structure, except that the electrode structure is different.

[0135] like Fig.17 As shown, the process cartridge includes a developer cartridge A21 and a drum cartridge A22 which are installed together in a longitudinal direction in a consistent manner, a developer A31 and a photosensitive member A24 are parallel to each other and face each other, after the developer contained in the developer cartridge is used up, the developer cartridge A21 can be removed from the drum cartridge A22 and replaced with a new one, and the drum cartridge A22 does not need to be removed from the electrophotographic imaging device, and when the photosensitive member A24 or other components installed in the drum cartridge A22 reach the end of their service life, the drum cartridge A22 can also be removed from the electrophotographic imaging device to be replaced with a new one. The structures of the components of the process cartridge are described below.

[0136] like Fig.18 As shown, the drum cartridge A22 includes a photosensitive member A24 and a housing A221, wherein the photosensitive member A24 is rotatably mounted on the housing A221, and the longitudinal ends of the housing A221 are provided with receiving grooves A2211 and A2212 for guiding the developing cartridge A22 to be mounted and accommodating the developing shaft of the developing member A31, and a separation member A251 is provided at the bottom of the housing A221. The pushing member A252 is provided at one end of the housing A221, and a first fixing portion A2213 is provided on the housing A221, and a first elastic member A153 for applying elastic force to the pushing member A252 is provided in the first fixing portion A2213, and the pushing member A252 is partially accommodated in the first fixing portion A2213.

[0137] like Fig.19 As shown, the developing box A21 includes a developing member A31 and a box body A211. Along the installation direction of the drum box A22, the developing member A31 is arranged at the front side, and the central axis A231 of the developing member A31 protrudes beyond the end of the box body A211. The box body A211 has a developer accommodating portion for accommodating developer, one end of which is provided with a driving force transmission component, and a driving end cover A212 is arranged outside the driving force transmission component. The other end of the box body A211 is provided with a mounting plate A213, and the electrode A232 is mounted on the mounting plate A213. Fig. 20 As shown, the electrode A232 includes a protrusion A2321, a connecting portion A2322 and a sleeve portion A2323 sleeved on the outside of the developing shaft A131, and the connecting portion A2322 connects the portion A2321 and the sleeve portion A2323.

[0138] When the developing box A21 is installed to the drum box A22, the developing member A31 is installed to the drum box A22 in the installation direction in a manner that the developing member A31 is located at the front side. The developing member A31 protruding from the box body A211 is guided by the receiving grooves A2211 and A2212 to move forward and finally be received in the receiving grooves A2211 and A2212. The protrusion A2321 of the electrode A232 contacts the separation member A251 and the pushing member A252, and is finally clamped and positioned by the separation member A251 and the pushing member A252. The developing member A31 contacts the photosensitive member A24, and the process box can start working / developing. The electrode A232 receives power from the pushing member A252 and transmits it to the developing shaft A231. The power transmission member in this embodiment is the electrode A232. When the processing box installed in the electrophotographic imaging device is not working / not developing, the electrophotographic imaging device applies pressure to the separation member A251, and the separation member A251 pushes the electrode A232 and the entire box body A211 to move in a direction away from the photosensitive member A24, and the forced pushing member A252 is pushed to overcome the elastic force of the first elastic member A153 and move into the first fixed part A2213, and the photosensitive member A24 is separated from the developing member A31. When the separation member A251 does not apply pressure to the electrode A232, the developing box A21 returns to the position where the developing member A31 contacts the photosensitive member A24 under the action of gravity and the elastic force released by the first elastic member A153, and the elastic force of the first elastic member A153 pushes the forced pushing member A252 back to the initial position and keeps in contact with the electrode A232, and the processing box can start working.

[0139] In this embodiment, the electrode A232 has a simple structure. There is no through hole for inserting the separation member A251. Instead, a protrusion A2321 is provided to abut against the separation member A251. The installation of the developing box A21 to the drum box A22 is simple and convenient, and the electrode is not easy to wear, thereby improving the service life of the developing box A21 and the processing box.

[0140] [The third power supply structure]

[0141] The structure of the process cartridge in this embodiment may be similar or identical to that in the above-described power supply structure, except that the electrode structure is different.

[0142] like Fig.21As shown, the process cartridge includes a developer cartridge A31 and a drum cartridge A32 which are installed together in a longitudinal direction in a consistent manner. The developer cartridge A31 and the photosensitive member A34 are parallel to each other and face each other. After the developer contained in the developer cartridge is used up, the developer cartridge A31 can be removed from the drum cartridge A32 and replaced with a new one. The drum cartridge A32 does not need to be removed from the electronic photographic imaging device. When the photosensitive member A34 or other components installed in the drum cartridge A32 reach the end of their service life, the drum cartridge A32 can also be removed from the electronic photographic imaging device to be replaced with a new one. The structures of the components of the process cartridge are described below.

[0143] like Fig. 22 As shown, the drum cartridge A32 includes a photosensitive member A34 and a housing A321, wherein the photosensitive member A34 is rotatably mounted on the housing A321, and the longitudinal ends of the housing A321 are provided with receiving grooves A3211 and A3212 for guiding the developer cartridge A32 to be mounted and accommodating the developer shaft A331, and a separation member A351 is provided at the bottom of the housing A321. A pushing member A352 is provided at one end of the housing A321, and a first fixing portion A3213 is provided on the housing A321. A first elastic member A153 for applying elastic force to the pushing member A352 is provided in the first fixing portion A3213, and the pushing member A352 is partially accommodated in the first fixing portion A3213, and a pushing structure A3214 for pushing the pushed member of the developer cartridge is provided at the rear side of the housing A321.

[0144] like Fig.23 As shown, the developing box A31 includes a developing member A31 and a box body A311. Along the installation direction of the drum box A32, the developing member A31 is arranged at the front side, and the developing shaft A331 protrudes beyond the end of the box body A311. The box body A311 has a developer accommodating portion for accommodating the developer, and a driving force transmission assembly is arranged at one end. The driving end cover A312 is arranged outside the driving force transmission assembly. The electrode A332 is arranged at the other end of the box body A311, extending outward from the hole arranged on the box body A311, and can move between an extended position and a retracted position. The electrode A332 is connected to the developing shaft A331 through a second conductive member A333. The push member A313 is slidably arranged in the developing box A300 and exposed at the rear side of the box body A311 along the installation direction of the developing box A300. In other embodiments, the structure of the second conductive member A333 may be different from that shown in the figure, as long as the connection with the electrode A332 can be guaranteed.

[0145] like Fig.24AAs shown, the pushed member A313 includes a pushing slope A3131 located on the front side of the installation direction, a pushed portion A3132 located on the rear side of the installation direction, and a fixing seat A3133 for fixing the fourth elastic member A314. The fourth elastic member A314 is a compression spring, one end of which abuts against the fixing seat A3133 and the other end abuts against the box body A311, and is used to apply an elastic force opposite to the installation direction to the pushed member A313. The electrode A332 has a slope A3321 that abuts against the pushing slope A3131, the elastic member fixing seat A3322 abuts against one end of a spring A334 serving as a third elastic member, and the other end of the elastic member A334 abuts against a protrusion arranged on the inner wall of the box body A311, thereby applying an elastic force to the inside of the box body A311 to the electrode A332, so that the electrode A332 is in a retracted position. At this time, the portion of the electrode A332 extending out of the box body A311 is small, but it is still connected to the second conductive member A333.

[0146] Only part of the push member A352 is made of conductive material, such as Fig. 24B As shown, a conductive part A3521 is provided in the pushing member A352, and the electrode A332 in the extended state contacts the conductive part A3521. The second conductive member A333 includes a first part A3331 and a second part A3332 connected to each other, wherein the first part A3331 is used to contact the electrode A332 to receive electricity, and the second part A3332 is used to contact the developing shaft A331, so that the developing shaft A331 can receive electricity; further, the second conductive member A333 also includes a The electrode A332 contacts the third part A3333, and the third part A3333 is used to contact the supply shaft A301 of the supply member, so that the supply member can also receive electricity. The second conductive member A333 can be fixed on the box body A311 or the developing bracket 38 through any one of the first part A3331, the second part A3332 and the third part A3333. Furthermore, the second conductive member A333 can also be provided with a positioning part A3334 to realize the positioning of the second conductive member A333.

[0147] When the developing cartridge A31 is installed to the drum cartridge A32, the developing member A31 is installed to the drum cartridge A32 in the installation direction in such a manner that the developing member A31 is located at the front side, and the developing shaft A331 of the developing member A31 protruding out of the cartridge body A311 is guided by the receiving grooves A3211 and A3212 to move forward and finally be received in the receiving grooves A3211 and A3212. The electrode A332 is located in the retracted position and does not affect the installation of the developing cartridge A31 on the drum cartridge A32. After the pushed portion A3132 of the pushed member A313 contacts the pushing structure A3214 of the shell A321, the pushed member A313 is pushed forward, and the pushing inclined surface A3131 and the inclined surface A3321 of the electrode A332 slide against each other, pushing the electrode A332 to overcome the elastic force of the elastic member A334 and move out of the box body A311, from the retracted position to the extended position, and is clamped between the separation member A351 and the pushing member A352, and the developing member A31 contacts the photosensitive member A34, and the processing box can start working / developing, and the electrode A332 receives power from the pushing member A352 and transmits it to the developing shaft A331 through the second conductive member A333, that is, the power transmission member in this embodiment includes the electrode A332 and the second conductive member A333. When the processing box installed in the electrophotographic imaging device is not working / not developing, the electrophotographic imaging device applies pressure to the separation member A351, and the separation member A351 pushes the electrode A332 and the entire box body A311 to move in a direction away from the photosensitive member A34, and the forced pushing member A352 is pushed to overcome the elastic force of the first elastic member A153 and move into the first fixed portion A3213. When the separation member A351 does not apply pressure to the electrode A332, the developing box A31 returns to the position where the developing member A31 contacts the photosensitive member A34 under the action of gravity and the elastic force released by the first elastic member A153, and the elastic force of the first elastic member A153 pushes the forced pushing member A352 back to the initial position and keeps in contact with the electrode A332, and the processing box can start working.

[0148] In this embodiment, the electrode A332 has a simple structure and can move between a retracted position and an extended position. When the developing box A31 is installed to the drum box A32, the electrode is located in the retracted position, and the electrode is not easily worn, thereby increasing the service life of the developing box A31 and the processing box.

[0149] [The fourth power supply structure]

[0150] Except for the difference in the way in which the movement of the electrode is pushed, the structure of the processing box in this embodiment can be similar to or the same as the structure in [the third power supply structure].

[0151] like Fig.25As shown, the process cartridge includes a developer cartridge A41 and a drum cartridge A42 which are installed together in a longitudinally consistent manner, the developer A31 and the photosensitive member A44 are parallel to each other and face each other, and after the developer contained in the developer cartridge is used up, the developer cartridge A41 can be removed from the drum cartridge A42 and replaced with a new one, and the drum cartridge A42 does not need to be removed from the electrophotographic imaging device, and when the photosensitive member A44 or other components installed in the drum cartridge A42 reach the end of their service life, the drum cartridge A42 can also be removed from the electrophotographic imaging device to be replaced with a new one. The structures of the components of the process cartridge are described below.

[0152] like Fig.26 As shown, the drum cartridge A42 includes a photosensitive member A44 and a housing A421, wherein the photosensitive member A44 is rotatably mounted on the housing A421, and the longitudinal ends of the housing A421 are provided with receiving grooves A4211 and A4212 for guiding the developer cartridge A42 to be installed and accommodating the developer shaft, and a separation member A451 is provided at the bottom of the housing. A forced pushing member A452 is provided at one end of the housing A421, and a first fixing portion A4213 is provided on the housing A421. A first elastic member A153 for applying elastic force to the forced pushing member A452 is provided in the first fixing portion A4213, and the forced pushing member A452 is partially accommodated in the first fixing portion A4213, and a pushing structure for pushing the pushed member of the developer cartridge is a side surface of the first fixing portion A4213.

[0153] like Fig. 27 As shown, the developing box A41 includes a developing member A31 and a box body A411. Along the installation direction of the drum box A42, the developing member A31 is arranged at the front side, and the central axis A431 of the developing member A31 protrudes out of the box body A411. The box body A411 has a developer accommodating portion for accommodating a developer, and a driving force transmission assembly is arranged at one end. The driving end cover A412 is arranged outside the driving force transmission assembly. The electrode A432 is arranged at the other end of the box body A411, extending outward from a hole arranged on the box body A411, and can move between an extended position and a retracted position. The electrode A432 is connected to the developing shaft A431 through a second conductive member A433, and the push member A413 is exposed at the end surface of the box body A311.

[0154] like Fig.28As shown, the pushed member A413 includes a pushing portion A4131 located at the front side of the installation direction, a pushed portion A4132 located at the rear side of the installation direction, and a rotating portion A4133 that allows the pushed member A413 to be rotatably installed on the box body. The electrode A432 has a bottom surface A4321 that abuts against the pushing portion A4131, and the elastic member fixing seat A4322 abuts against one end of a spring A434 as a third elastic member, and the other end of the spring A434 abuts against the inner wall of the box body A411, thereby applying an elastic force to the inside of the box body A411 to the electrode A432, so that the electrode A432 is in a retracted position, and the portion of the electrode A432 extending outside the box body A411 is small, but still connected to the second conductive member A433.

[0155] When the developing cartridge A41 is installed on the drum cartridge A42, the developing member A31 is installed on the drum cartridge A42 in the installation direction in such a manner that the developing member A31 is located at the front side, and the developing shaft A431 protruding out of the cartridge body A411 is guided by the receiving grooves A4211 and A4212 to move forward and finally be received in the receiving grooves A4211 and A4212. The electrode A432 is located in the retracted position and does not affect the installation of the developing cartridge A41 on the drum cartridge A42. After the pushed portion A4132 of the pushed member A413 contacts the side of the first fixed portion A4213, the pushed member A413 is pushed into the box body A411 to make the pushed member A413 rotate as a whole around the rotating portion A4133, the pushed portion A4132 moves into the inside of the box body and then the pushing portion A4131 applies pressure toward the outside of the box body A411 to the bottom surface A4321 of the electrode A432, pushing the electrode A432 to overcome the elastic force of the spring A434 and move out of the box body A411, from the retracted position to the extended position, and is clamped between the separation member A451 and the pushing member A452, the developing member A31 contacts the photosensitive member A44, the processing box can start working / developing, the electrode A432 receives power from the pushing member A452 and transmits it to the developing shaft A431 through the second conductive member A433, that is, the power transmission member in this embodiment includes the electrode A432 and the second conductive member A433. When the processing box installed in the electrophotographic imaging device is not working / not developing, the electrophotographic imaging device applies pressure to the separation member A451, and the separation member A451 pushes the electrode A432 and the entire box body A411 to move in a direction away from the photosensitive member A44, and the forced pushing member A452 is pushed to overcome the elastic force of the first elastic member A153 and move into the first fixed portion A4213. When the separation member A451 does not apply pressure to the electrode A432, the developing box A41 returns to the position where the developing member A31 contacts the photosensitive member A44 under the action of gravity and the elastic force released by the first elastic member A153, and the elastic force of the first elastic member A153 pushes the forced pushing member A452 back to the initial position and keeps in contact with the electrode A432, and the processing box can start working.

[0156] In this embodiment, the rotating portion A4133 can be set as a rotating shaft or a rotating hole. The electrode A432 has a simple structure and can move between a retracted position and an extended position. When the developing box A41 is installed to the drum box A42, the electrode is located in the retracted position. The electrode is not easy to wear, thereby increasing the service life of the developing box A41 and the processing box.

[0157] [Fifth power supply structure]

[0158] Except for the difference in the way in which the movement of the electrode is pushed, the structure of the processing box in this embodiment can be similar to or the same as the structure in [the third power supply structure].

[0159] like Fig.29 As shown, the process box includes a developer box A51 and a drum box A52 which are installed together in a longitudinal direction in a consistent manner, the developer A31 and the photosensitive member A54 are parallel to each other and face each other, after the developer contained in the developer box is used up, the developer box A51 can be removed from the drum box A52 and replaced with a new one, and the drum box A52 does not need to be removed from the electronic photographic imaging device. When the photosensitive member A54 or other components installed in the drum box A52 reach the end of their service life, the drum box A52 can also be removed from the electronic photographic imaging device to be replaced with a new one. The structure of each component of the process box is described below.

[0160] like Fig.30 As shown, the drum cartridge A52 includes a photosensitive member A54 and a housing A521, wherein the photosensitive member A54 is rotatably mounted on the housing A521, and the longitudinal ends of the housing A521 are provided with receiving grooves A5211 and A5212 for guiding the developer cartridge A52 to be mounted and accommodating the developer shaft A531, and a separation member A551 is provided at the bottom of the housing. A forced push member A552 is provided at one end of the housing A521, and a first fixing portion A5213 is provided on the housing A521, and a first elastic member A153 for applying elastic force to the forced push member A552 is provided in the first fixing portion A5213, and the forced push member A552 is partially accommodated in the first fixing portion A5213.

[0161] like Fig.31 As shown, the developing box A51 includes a developing member A31 and a box body A511. Along the installation direction of the drum box A52, the developing member A31 is arranged at the front side, and the central axis A531 of the developing member A31 protrudes out of the box body A511. The box body A511 has a developer accommodating portion for accommodating a developer, and a driving force transmission assembly is arranged at one end. The driving end cover A512 is arranged outside the driving force transmission assembly. The electrode A532 is arranged at the other end of the box body A511, extending outward from a hole arranged on the box body A511, and can move between an extended position and a retracted position. The electrode A532 is connected to the developing shaft A531 through a second conductive member A533, and the push member A513 is exposed at the rear side of the box body A511.

[0162] like Fig.32 As shown, the pushed member A513 includes a pushing inclined surface A5131 located at the front side of the installation direction, a pushed portion A5132 located at the rear side of the installation direction, and a fixing seat A5133 for fixing the elastic member A514. The elastic member A514 is a compression spring, one end of which abuts against the fixing seat A5133 and the other end abuts against the box body A511, and is used to apply an elastic force opposite to the installation direction to the pushed member A513. The electrode A532 has an inclined surface A5321 abutting against the pushing inclined surface A5131, the elastic member fixing seat A5322 abuts against one end of a spring A534 as a third elastic member, and the other end of the elastic member A534 abuts against the inner wall of the box body A511, thereby applying an elastic force to the inside of the box body A511 to the electrode A532, so that the electrode A532 is in a retracted position. At this time, the portion of the electrode A532 extending outside the box body A511 is small, but it is still connected to the second conductive member A533.

[0163] When the developing cartridge A51 is installed on the drum cartridge A52, the developing member A31 is installed on the drum cartridge A52 in the installation direction in such a manner that the developing member A31 is located at the front side, and the developing shaft A531 protruding out of the cartridge body A511 is guided by the receiving grooves A5211 and A5212 to move forward and finally be received in the receiving grooves A5211 and A5212. The electrode A532 is located in the retracted position and does not affect the installation of the developing cartridge A51 on the drum cartridge A52. After the development box A51 is installed in the drum box A52, when the machine door of the electronic photographic imaging device is closed, the pushed portion A5132 of the pushed member A513 contacts the machine door and is pushed forward, and the pushing slope A5131 and the slope A5321 of the electrode A532 slide with each other, pushing the electrode A532 to overcome the elastic force of the elastic member A534 and move toward the box body A511, from the retracted position to the extended position, and is clamped between the separation member A551 and the pushing member A552, the development member A31 contacts the photosensitive member A54, the processing box can start working, the electrode A532 receives power from the pushing member A552 and transmits it to the development shaft A531 through the second conductive member A533, that is, the power transmission member in this embodiment includes the electrode A532 and the second conductive member A533. When the processing box installed in the electrophotographic imaging device is not working / not developing, the electrophotographic imaging device applies pressure to the separation member A551, and the separation member A551 pushes the electrode A532 and the entire box body A511 to move in a direction away from the photosensitive member A54, and the pushing member A552 is pushed to overcome the elastic force of the first elastic member A153 and move into the first fixed portion A5213. When the separation member A551 does not apply pressure to the electrode A532, the developing box A51 returns to the position where the developing member A31 contacts the photosensitive member A54 under the action of gravity and the elastic force released by the first elastic member A153, and the elastic force of the first elastic member A153 pushes the pushing member A552 back to the initial position and keeps in contact with the electrode A532, and the processing box can start working / developing.

[0164] In this embodiment, the electrode A532 has a simple structure and can move between a retracted position and an extended position. When the developing box A51 is installed to the drum box A52, the electrode is located in the retracted position, and the electrode is not easily worn, thereby increasing the service life of the developing box A51 and the processing box.

[0165] In some embodiments, the portion of the first shaft 1b1 extending into the developer box accommodating portion 12 and the portion of the second shaft 2b1 extending into the developer box accommodating portion 12 can also be cut off, so that the first shaft 1b1 no longer extends toward the developer box accommodating portion 12, and the second shaft 2b1 no longer extends toward the developer box accommodating portion 12. In this way, a vacant portion S1 can also be formed between the right surface 3b and the first shaft 1b1 / second shaft 2b1, and the drum box can be made universal.

[0166] By designing the developing box according to the above scheme, it can be ensured that the developing box can be compatible with the first drum box 100 and the second drum box 200, and the developing box can be applied regardless of whether the protrusion 15 / 25 is set in the drum box, thereby improving the production convenience of the manufacturer and the user's experience.

Claims

1. A developing cartridge, which is used to be mounted on a drum cartridge provided with a photosensitive member, and the developing cartridge is mounted on an imaging device after being combined with the drum cartridge; The drum cartridge includes a housing and a conductive assembly and a separation member disposed at one end of the housing, the photosensitive member is rotatably disposed in the housing, and the conductive assembly is used to receive power from the imaging device; The developing box comprises a box body and a developing member rotatably arranged in the box body, wherein the developing member has a developing shaft; The separation member is used to receive the pressure applied by the imaging device to force the developing member and the photosensitive member to separate from each other; It is characterized in that The developing box further includes a developing member support and a power transmission member formed in one piece or in a separate piece, wherein the developing member support is used to support the developing member, the power transmission member is used to electrically connect the conductive component and the developing shaft, and a part of the power transmission member is used to enter between the conductive component and the separating member; When the developing member support and the power transmission member are formed separately, the developing member support is made of a non-conductive material; When the developing member holder is formed integrally with the power transmission member, the power transmission member is not provided with a through hole for inserting the separation member.

2. The developing cartridge according to claim 1, characterized in that: The conductive component includes a pushing member, a first elastic member and a first conductive member, wherein the power of the imaging device is transmitted to the developing box through the first conductive member, the first elastic member and the pushing member, and the power transmission member abuts against at least one of the first conductive member, the first elastic member and the pushing member.

3. The developing cartridge according to claim 2, characterized in that: The power transmission member includes an electrode and a second conductive member, the second conductive member is connected to the developing shaft and the electrode respectively, and the electrode is clamped and positioned by the separation member and the pushing member.

4. The developing cartridge according to claim 2, wherein: When the developing member bracket and the power transmission member are formed integrally, the power transmission member is an electrode including a protrusion, a connecting portion and a sleeve portion. The sleeve portion is sleeved outside the developing shaft, the protrusion is clamped and positioned by the separation member and the pushing member, and the connecting portion connects the protrusion and the sleeve portion.

5. The developing cartridge according to claim 3, characterized in that: The second conductive member is a torsion spring that applies a force toward the developing shaft and the electrode so that the two move closer to each other.

6. The developing cartridge according to claim 3, characterized in that: The electrode is movable between a retracted position and an extended position, and the electrode is in the retracted position when the developer cartridge is mounted toward the drum cartridge.

7. The developing cartridge according to claim 6, wherein: The developing box also includes a push-receiving member and a third elastic member. The push-receiving member is installed on the box body in a pushable manner. The third elastic member is used to apply an elastic force toward the inside of the box body to the electrode.

8. The developing cartridge according to claim 7, wherein: The developing box also includes a fourth elastic member, the pushed member includes a pushing inclined surface located on the front side of the installation direction, a pushed portion located on the rear side of the installation direction and a fixed seat abutting against the fourth elastic member, the electrode has an inclined surface abutting against the pushing inclined surface, the fourth elastic member is used to apply an elastic force opposite to the installation direction to the pushed member, and the pushed portion is used to contact with a pushing structure provided on the drum box and be pushed forward.

9. The developing cartridge according to claim 6, wherein: The developing box also includes a push-receiving member and a third elastic member. The push-receiving member is rotatably mounted on the box body. The third elastic member is used to apply an elastic force toward the inside of the box body to the electrode.

10. The developing cartridge according to claim 7, characterized in that: The developing box also includes a fourth elastic member, the pushed member includes a pushing inclined surface located on the front side of the installation direction, a pushed portion located on the rear side of the installation direction and a fixed seat abutting against the fourth elastic member, the electrode has an inclined surface abutting against the pushing inclined surface, the fourth elastic member is used to apply an elastic force opposite to the installation direction to the pushed member, and the pushed portion is used to contact with the machine compartment door of the imaging device and be pushed forward.

Images