Developing cartridge

Abstract

The utility model discloses a developing box suitable for the imaging equipment of setting power output piece, and the developing box includes: casing, forms the cavity for accommodating carbon powder, developing roller is set in casing in rotatable mode, and developing roller is used for supplying carbon powder stored in casing to photosensitive drum outside developing box, driving force receiving member is used for receiving driving force from the imaging equipment to drive developing roller rotation, electrically conductive member is directly or indirectly installed on casing, is used for receiving power from the imaging equipment and supplies to developing roller, chip assembly is fixedly arranged relative to casing, force receiving member is fixedly arranged relative to casing, along first direction, and force receiving member is arranged in the electrically conductive end of developing box, and at least one part of force receiving member is in the area of the movement track of forcing element. The utility model force receiving member is fixedly arranged relative to casing, is favorable to reducing the number of parts and convenient assembly.

Description

Technical Field

[0001] This utility model relates to the field of electrophotographic imaging, and more particularly to a developing cartridge that can be detachably installed in an electrophotographic imaging device, as well as a developing cartridge assembly and a processing cartridge having the developing cartridge. Background Technology

[0002] A developing cartridge is provided for use in an electrophotographic imaging device (hereinafter referred to as "imaging device"). Rotating components such as a developing roller, a powder feeding roller, and a stirring frame are rotatably arranged within the developing cartridge. When the developing cartridge is used for development within the imaging device, a driving force receiver in the developing cartridge receives driving force from the imaging device to drive the developing roller, powder feeding roller, and stirring frame to rotate. The stirring frame is used to stir the toner stored in the developing cartridge. The powder feeding roller is used to convey the toner towards the developing roller. The developing roller carries the toner and supplies it to a photosensitive drum on which an electrostatic latent image is formed, thereby developing the electrostatic latent image on the photosensitive drum.

[0003] Furthermore, the developing cartridge is also provided with a component for receiving power from the imaging device and a drive force receiver for receiving driving force from the imaging device. However, when viewed along the rotation axis of the developing roller, the rotation axis of the drive force receiver passes through the component for receiving power. When the drive force receiver rotates, the component for receiving power will be affected by the vibration of the drive force receiver, thereby affecting the working stability of the component for receiving power.

[0004] Moreover, in existing technologies, the force receiving components of the developing cartridge are often designed as complex movable structures, including multiple cooperating components. These complex structures increase the design difficulty and may also lead to low power transmission efficiency. The increase in the number of parts not only increases production costs but also significantly increases the complexity of the assembly process and reduces production efficiency. Utility Model Content

[0005] This utility model further develops the prior art to solve at least one of the above-mentioned technical problems, specifically:

[0006] A developing cartridge, suitable for imaging devices equipped with a power output component, includes: a housing having a cavity for containing toner; a developing roller rotatably disposed within the housing, the developing roller supplying toner stored in the housing to a photosensitive drum outside the developing cartridge; a driving force receiver for receiving driving force from the imaging device to drive the developing roller to rotate; a conductive element directly or indirectly mounted on the housing for receiving power from the imaging device and supplying it to the developing roller; a chip assembly fixed relative to the housing; and a force receiver fixed relative to the housing, the force receiver being disposed at a conductive end of the developing cartridge along a first direction, and at least a portion of the force receiver being within the area of ​​the movement trajectory of the force-applying element; wherein the end of the developing cartridge containing the conductive element is defined as the conductive end, and the end containing the driving force receiver is defined as the driving end.

[0007] In some embodiments, the chip assembly includes a mounting bracket and a chip, with an elastic pad provided between the mounting bracket and the chip, and the mounting bracket is connected to a housing.

[0008] In some embodiments, during the separation of the developing roller and the photosensitive drum, the force-applying component of the imaging device moves from the rear along an arc-shaped trajectory to the front in a second direction.

[0009] In some embodiments, the force receiving member includes a squeezed portion and a locking portion. During the movement of the force applying member, the squeezed portion is squeezed. When the separation process is completed, the force applying member abuts against the locking portion.

[0010] In some embodiments, the force receiving member further includes a shaking part, which is located within the area of ​​the motion trajectory of the force applying member.

[0011] In some embodiments, the force receiving member is further provided with reinforcing ribs and / or torque reinforcing parts.

[0012] In some embodiments, the chip assembly is a drive end fixedly disposed in the first direction of the developing cartridge. When the separation process is completed, when viewed from right to left along the first direction, the cross-section of the contact point between the force-applying member and the force-receiving member and the contact plane between the chip assembly and the electric probe in the imaging device form an angle a1, which is in the range of 0°-30°.

[0013] In some embodiments, the developing cartridge includes a force receiver and a conductive element, which are separately disposed, with the conductive element fixed between the housing of the developing cartridge and the force receiver.

[0014] In some embodiments, the developing cartridge further includes an end cap connected to the housing, and a force receiving member extends from at least one of the housing and the end cap of the developing cartridge along a first direction.

[0015] In some embodiments, the force receiving element is integrally formed with the conductive element, and at least a portion of it is made of a conductive material. Attached Figure Description

[0016] Figure 1A and Figure 1B This is a perspective view of the developing cartridge involved in Embodiment 1 of this utility model.

[0017] Figure 2 This is an exploded view of the driving end of the developing cartridge after it has been separated from the housing, according to Embodiment 1 of this utility model.

[0018] Figure 3A This is a side view of the developing cartridge with the drive end cover hidden, as viewed along the first direction, according to Embodiment 1 of this utility model.

[0019] Figure 3B This is a side view of the developing cartridge with the drive end cover hidden after installation, as viewed from a third direction, according to Embodiment 1 of this utility model.

[0020] Figure 4 This is an exploded schematic diagram of the conductive end of the developing cartridge after it has been separated from the housing, according to Embodiment 1 of this utility model.

[0021] Figure 5 This is a side view of the developing cartridge involved in Embodiment 1 of this utility model, viewed along the first direction.

[0022] Figure 6A This is a top view of the powder-discharging knife according to Embodiment 1 of this utility model, viewed along the second direction.

[0023] Figure 6B This is a side view of the powder-discharging blade and the developing roller in Embodiment 1 of this utility model, viewed along the first direction.

[0024] Figure 7 This is a perspective view of the developing cartridge after the support, conductive components and shell are separated, according to Embodiment 2 of this utility model.

[0025] Figure 8 This is a perspective view of the developing cartridge being installed toward the imaging device according to Embodiment 3 of this utility model.

[0026] Figure 9 This is a perspective view of the conductive end of the developing cartridge according to Embodiment 3 of this utility model.

[0027] Figure 10 This is a state diagram of the detection device in the developing cartridge according to Embodiment 3 of this utility model before the start of detection.

[0028] Figure 11 This is a state diagram of the detection device in the developing cartridge according to Embodiment 3 of this utility model after the detection is completed.

[0029] Figure 12 and Figure 13This is a perspective view of the developing cartridge involved in Embodiment 4 of this utility model.

[0030] Figure 14 This is a diagram showing the state of the developing cartridge and its compatible drum cartridge being installed together toward the imaging device according to Embodiment 4 of this utility model.

[0031] Figure 15 This is a side view of the developing cartridge and its matching drum cartridge according to Embodiment 5 of this utility model, viewed from a third direction.

[0032] Figure 16 This is a diagram showing the developer cartridge and its compatible drum cartridge according to Embodiment 5 of this utility model, with the force-applying component removed.

[0033] Figure 17 This is a diagram showing the state of the developing cartridge and its adapter drum cartridge separated from the conductive component and force receiving component according to Embodiment Six of this utility model.

[0034] Figure 18 This is a diagram showing the state of the developing cartridge and its adapter drum cartridge separated from the force receiving component according to Embodiment 7 of this utility model. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0036] [Example 1]

[0037] Figure 1A and Figure 1B This is a perspective view of the developing cartridge according to Embodiment 1 of this utility model; Figure 2 This is an exploded view of the driving end of the developing cartridge after it has been separated from the housing, according to Embodiment 1 of this utility model. Figure 3A This is a side view of the developing cartridge with the drive end cover hidden after the invention, according to Embodiment 1 of this utility model, viewed along the first direction. Figure 3B This is a side view of the developing cartridge with the drive end cover hidden after the invention, according to Embodiment 1 of this utility model, viewed from a third direction. Figure 4 This is an exploded view of a portion of the conductive end of the developing cartridge after it has been separated from the housing, according to Embodiment 1 of this utility model. Figure 5 This is a side view of the developing cartridge according to Embodiment 1 of this utility model, viewed along the first direction; Figure 6A This is a top view of the powder-discharging blade according to Embodiment 1 of this utility model, viewed along the second direction; Figure 6B This is a side view of the powder-discharging blade and the developing roller in Embodiment 1 of this utility model, viewed along the first direction.

[0038] The developing cartridge 100 can be detachably installed onto the part 9 to be tested (e.g., Figure 7In the imaging device shown, or in other words, the developing cartridge 100 is suitable for an imaging device in which the test piece 9 is provided. The developing cartridge 100 can be formed as an "integrated" structure that includes both the developing roller and the photosensitive drum, or it can be formed as a "split" structure that includes the developing roller but not the photosensitive drum. Regardless of the form of the developing cartridge 100, it can be directly or indirectly installed to the imaging device in a detachable manner. For example, the developing cartridge 100 is first installed to the drum housing, and then the combination of the developing cartridge 100 and the drum housing is detachably installed to the imaging device. Alternatively, the developing cartridge 100 can be directly installed to the imaging device in a detachable manner.

[0039] The developing cartridge 100 includes a housing 1, a rotating component 2, a driving force receiving component 3, and a detection device 4. The housing 1 forms a cavity 10 for containing toner. The rotating component 2 is rotatably disposed in the housing 1. The driving force receiving component 3 is used to receive driving force from the imaging device to drive the rotating component 2 to rotate. The detection device 4 is used to interact with the object being detected so that various parameter information of the developing cartridge 100 can be obtained by the imaging device, such as whether the developing cartridge 100 is installed, the model of the developing cartridge 100, and the service life of the developing cartridge 100. Furthermore, the developing cartridge 100 also includes an end cap 11 connected to the housing 1 and a handle (grip) 12. The user can install and remove the developing cartridge 100 by operating the handle 12.

[0040] Both the rotating component 2 and the detection device 4 are used to directly or indirectly receive the driving force from the driving force receiving component 3. That is, the driving force receiving component 3 supplies the driving force it receives directly or indirectly to the rotating component 2 and the detection device 4, causing the rotating component 2 and the detection device 4 to work. In this embodiment, the driving force receiving component 3 has an exposure hole 112 provided in the end cover 11 (e.g., Figure 2 As shown, the developing cartridge 100 is also provided with a driving force transmission component 6, which is used to transmit the driving force of the driving force receiving component 3 to the rotating component 2 and the detection device 4 respectively.

[0041] The rotating component 2 includes a developing roller 21, a powder feeding roller 22, and a stirring frame 23. The powder feeding roller 22 contacts the developing roller 21 and is used to supply toner to the developing roller 21. The stirring frame 23 is used to stir the toner. When the driving force receiving component 3 receives the driving force and rotates around the rotation axis L2, the developing roller 21, the powder feeding roller 22, and the stirring frame 23 rotate around their respective rotation axes. The rotation axis of the developing roller 21 is L1, and the rotation axis of the stirring frame 23 is L3. The rotation axes L1, L2, and L3 are parallel to each other.

[0042] To make the following description clearer, the extension direction of the rotation axis L1 is defined as the first direction, the direction intersecting the first direction is defined as the second direction, and the direction intersecting both the first and second directions is defined as the third direction. Preferably, the first, second, and third directions are orthogonal. As shown in the figure, along the second direction, the developing roller 21 and the handle 12 are located at both ends of the housing 1. When the developing cartridge 100 is installed toward the drum or imaging device, the developing roller 21 is located in front of the installation direction, and the handle 12 is located behind the installation direction. Therefore, the second direction can also be regarded as the installation direction. Along the first direction, the driving force receiver 3 is located at one end (driving end) of the housing 1. The detection device 4 can be located at the same end of the housing 1 as the driving force receiver 3, or at both ends of the housing 1. The following example shows the detection device 4 and the driving force receiver 3 being located on the same side.

[0043] The developing cartridge 100 also includes a toner dispensing blade 7 and a conductive element 5. The toner dispensing blade 7 is fixedly mounted on the housing 1 and contacts the outer surface of the developing roller 21, and is used to adjust the amount of toner carried by the developing roller 21. The conductive element 5 is directly or indirectly mounted on the housing 1 and is used to receive power from the imaging device and supply it to the developing roller 21 and / or the toner feeding roller 22.

[0044] Furthermore, along the first direction, the driving force receiving element 3 and the conductive element 5 are located at both ends of the housing 1, so the end where the conductive element 5 is located can be called the conductive end. The driving end is defined as the left side of the developing cartridge 100, and the conductive end is defined as the right side of the developing cartridge 100. When the developing cartridge 100 is installed in the imaging device, the direction of gravity of the developing cartridge 100 is downward and upward. Along the third direction, at least a portion of the powder discharge blade 7 is located above the rotation axis L1.

[0045] Furthermore, along the first direction, the housing 1 has a left side wall 1a and a right side wall 1b that are separated from each other, the cavity 10 is located between the left side wall 1a and the right side wall 1b, the driving force transmission assembly 6 is directly or indirectly mounted on the left side wall 1a, and the conductive element 5 is directly or indirectly mounted on the right side wall 1b.

[0046] (Drive force transmission component)

[0047] like Figure 2As shown, the driving force transmission assembly 6 includes a first transmission member 61, a second transmission member 62, a third transmission member 63, a fourth transmission member 64, and a fifth transmission member 65. The first transmission member 61 is coaxially arranged with the driving force receiving member 3, the second transmission member 62 is coaxially arranged with the developing roller 21, the third transmission member 63 is coaxially arranged with the powder feeding roller 22, and the fifth transmission member 65 is coaxially arranged with the stirring frame 23. The fourth transmission member 64 is located between the first transmission member 61 and the fifth transmission member 65, and is simultaneously connected to both the first transmission member 61 and the fifth transmission member 65. The fifth transmission member 65 is used to connect with the detection device 4. Therefore, the driving force received by the driving force receiving member 3 is sequentially transmitted through... The force is transmitted to the detection device 4 via the first transfer member 61, the fourth transfer member 64, and the fifth transfer member 65; at least one of the second transfer member 62 and the third transfer member 63 is combined with the first transfer member 61 to receive the driving force from the driving force receiving member 3. When one of the second transfer member 62 and the third transfer member 63 is combined with the first transfer member 61, the second transfer member 62 and the third transfer member 63 can transmit the driving force by combining with each other. When the second transfer member 62 and the third transfer member 63 are combined with the first transfer member 61 at the same time, the driving force can be directly transmitted to the second transfer member 62 and the third transfer member 63. Finally, the developing roller 21, the powder feeding roller 22, and the stirring frame 23 are all driven.

[0048] In some embodiments, the first transmission member 61 includes a first small-diameter portion 611 and a first large-diameter portion 612 coaxially arranged, the diameter of the first small-diameter portion 611 being smaller than the diameter of the first large-diameter portion 612, and the first small-diameter portion 611 being further away from the housing 1 / cavity 10 / conductive end than the first large-diameter portion 612 along a first direction; the fourth transmission member 64 includes a second small-diameter portion 641 and a second large-diameter portion 642 coaxially arranged, the diameter of the second small-diameter portion 641 being smaller than the diameter of the second large-diameter portion 642; the fifth transmission member 65 is coupled to the second small-diameter portion 641, and the second small-diameter portion 641 is further away from the housing 1 / cavity 10 / conductive end than the second large-diameter portion 642 along a first direction; the fifth transmission member 65 is provided with an active part 650 for driving the detection device 4.

[0049] As described above, the first large diameter portion 612 is closer to the housing 1 / cavity 10 / conductive end than the first small diameter portion 611, and the second large diameter portion 642 is closer to the housing 1 / cavity 10 / conductive end than the second small diameter portion 641. This design helps to reduce the possible shaking of the first transmission member 61 and the fourth transmission member 64, thereby improving the stability of the drive transmission assembly 6 in transmitting the driving force.

[0050] like Figure 3BAs shown, along the first direction, the fifth transfer member 65 is no closer to the housing 1 than the fourth transfer member 64 and / or the first transfer member 61. That is, along the first direction, the fifth transfer member 65, the fourth transfer member 64, and the first transfer member 61 are at the same distance from the housing 1; or, the fifth transfer member 65 is at a greater distance than the fourth transfer member 64 and / or the first transfer member 61; or, the fifth transfer member 65 is at a distance not less than the fourth transfer member 64 and / or the first transfer member 61. Since the outer surface of the first sidewall 1a is not a plane, to more clearly illustrate these distances... Figure 3B A reference surface D is introduced, which is parallel to the second direction and also passes through the cavity 10. Along the first direction, the distance between the position of the fifth transmission member 65 furthest from the housing 1 and the reference surface D is h1, the distance between the position of the fourth transmission member 64 (second small diameter portion 641) furthest from the housing 1 and the reference surface D is h2, and the distance between the position of the first transmission member 61 (first small diameter portion 611) furthest from the housing 1 and the reference surface D is h3, satisfying h1≥h2 and h1≥h3. This arrangement can effectively avoid interference between the fifth transmission member 65 and the fourth transmission member 64 or between the fifth transmission member 65 and the first transmission member 61. On the other hand, it can give the movable member 42 more room to move. At the same time, the movable member 42 can also be effectively protected by the fifth transmission member 65 to prevent the movable member 42 from falling off.

[0051] (Detection device)

[0052] like Figure 2 As shown, the detection device 4 includes a detection element 41, a movable element 42, a pushing element 43, and a resetting element 44. Under the action of the resetting element 44, the detection element 41 can reciprocate along a direction intersecting the first direction. The movable element 42 is driven by the fifth transmission element 65 to transmit the driving force to the detection element, thereby forcing the detection element 41 to interact with the detected element. The pushing element 43 is used to push the movable element 42 toward a state where the driving force transmission is disconnected from the detection element 41.

[0053] In one embodiment, the detection element 41 is movably mounted on the end cap 11, as shown in the figure. The end cap 11 includes an end cap body 111, an exposure hole 112, and a guide portion 113. Along a first direction, the exposure hole 112 passes through the end cap body 111, and the guide portion 113 is used to guide the detection element 41. Preferably, the guide portion 113 is a groove provided on the end cap body 111, and the reset element 44 is an elastic element installed in the groove 113. When the detection element 41 is driven to move by the movable element 42, the reset element 44 undergoes elastic deformation. When the detection element 41 is no longer driven by the movable element 42, the reset element 44 releases the elastic force, so that the detection element 41 is reset.

[0054] In one embodiment, the guide portion 113 may also be a protrusion provided on the end cap body 111, and correspondingly, the detection element 41 is provided with a groove for cooperating with the protrusion.

[0055] The movable component 42 includes a movable body 421 and a driven part 422 and a driving part 423 respectively connected to the movable body 421. The driven part 422 and the driving part 423 both protrude from the movable body 421. The driven part 422 is used to combine with the active part 650 to receive the driving force transmitted by the fifth transmission member 65. The driving part 423 is used to transmit the driving force to the detection member 41, so that the detection member 41 can move along a predetermined trajectory, thereby the detection member 41 interacts with the detected member.

[0056] Specifically, the movable member 42 is configured to move between a position close to the housing 1 and a position far away from the housing 1. More specifically, the movable member 42 is configured to move in a direction parallel to the first direction. For example, before the detection device 4 / detector 41 completes its interaction with the detected object, the movable member 42 is located at the position far away from the housing 1. At this time, the movable member 42 can transmit driving force to the detection device 4 / detector 41. After the detection device 4 / detector 41 completes its interaction with the detected object, under the action of the pushing member 43, the movable member 42 moves to the position close to the housing 1. At this time, the movable member 42... The driving force transmission between the moving part 42 and the detection device 4 / detector 41 is disconnected; in some embodiments, the movement process of the moving part 42 can also be reversed, that is, before the interaction between the detection device 4 / detector 41 and the detected object is completed, the moving part 42 is located in a position close to the housing 1. At this time, the moving part 42 can transmit the driving force to the detection device 4 / detector 41. After the interaction between the detection device 4 / detector 41 and the detected object is completed, under the action of the pushing member 43, the moving part 42 moves to a position far away from the housing 1. At this time, the driving force transmission between the moving part 42 and the detection device 4 / detector 41 is disconnected.

[0057] In some embodiments, the developing cartridge 100 further includes a support column 13 protruding from the left side wall 1a. The movable member 42 is supported by the support column 13. A mating groove 424 may be provided in the movable member 42. Correspondingly, a mating protrusion 132 that can engage with the mating groove 424 is provided on the support column 13. When the movable member 42 is in a far-away position, the mating groove 424 does not engage with the mating protrusion 132. When the detection device 4 / detector 41 interacts with the detected object, the mating protrusion 132 enters the mating groove 424 under the action of the pushing member 43 to complete the engagement, and the movable member 42 reaches the close position. Conversely, the positions of the mating protrusion 132 and the mating groove 424 can also be interchanged.

[0058] In some embodiments, the detection element 41 is provided with a driven part 411 and an actuating part 412. The driven part 411 is actuated by the driving part 423, and the driving force is transmitted to the detection element 41. When the detection element 411 is driven, the actuating part 412 can interact with the detected element 9.

[0059] (Conductive component)

[0060] like Figure 4 As shown, the conductive component 5 includes a power receiving part 51, a power supply part 52, and a connecting part 53. The power receiving part 51 is used to receive power from the imaging device. Through the connecting part 53, the power is transmitted to the power supply part 52, and then the power supply part 52 supplies the power to at least one of the developing roller 21 and the powder feeding roller 22.

[0061] The developing roller 21 includes a developing roller shaft 212 and a developing layer 211 covering the outside of the developing roller shaft 212. The developing layer 211 is used to carry toner. The toner feeding roller 22 includes a toner feeding roller shaft 222 and a toner feeding layer 221 covering the outside of the toner feeding roller shaft 222. The toner feeding layer 221 is used to supply toner to the developing layer 211. Generally, both the developing roller shaft 212 and the toner feeding roller shaft 222 are made of metal to reduce the delay in the transmission of driving force in the developing roller 21 and the toner feeding roller 22. Therefore, in some embodiments, the developing roller shaft 212 and the toner feeding roller shaft 222 can also be made of non-metallic materials, such as... Figure 4 As shown, the support hole in housing 1 for supporting the developing roller shaft 212 and the support hole for the powder feeding roller shaft 222 are not connected.

[0062] Generally, imaging equipment is provided with a first power output unit for supplying power to the developing roller 21 and a second power output unit for supplying power to the powder feeding roller 22. The voltage output by the second power output unit is higher than the voltage output by the first power output unit. In this embodiment, the power receiving unit 51 is configured to contact the second power output unit and receive the voltage output by the second power output unit. The power supply unit 52 is in contact with the developing roller shaft 212. Preferably, the power supply unit 52 is in contact with the end face of the developing roller shaft 212.

[0063] like Figure 5 As shown, when viewed from right to left along the first direction, the conductive element 5 is located outside the projection range of the driving force receiver 3. This design can effectively reduce the impact of the vibration generated by the driving force receiver 3 during rotation on the conductive element 5. In particular, the vibration generated by the driving force receiver 3 is greater at the moment it is driven, but the conductive element 5 is not located within the projection range of the driving force receiver 3. Thus, the power receiving part 51 can not only maintain stable contact with the second power output part, but the power supply part 53 can also maintain stable contact with the developing roller shaft 212.

[0064] (Dispense powder)

[0065] The toner ejector 7 includes a blade holder 71 and a blade 72, both extending along a first direction. The blade 72 is fixedly mounted on the blade holder 71 and is used to contact the developing roller 21 (developing layer 211) to adjust the thickness of the toner layer on the surface of the developing roller 21 (developing layer 211). Commonly, the blade 72 can be connected to the blade holder 71 by bonding, welding, or other methods. Figure 6A and Figure 6B As shown, the blade 72 is welded to the tool holder 71, and multiple welded parts 74 are formed between the blade 72 and the tool holder 71.

[0066] Furthermore, the powder dispensing blade 7 also includes at least one mounting portion 73 provided on the blade holder 71. The powder dispensing blade is fixedly mounted via the mounting portion 73. Specifically, a screw, acting as a mounting element, passes through the mounting portion 73, allowing the powder dispensing blade 7 to be fixedly mounted on the housing 1. Preferably, the powder dispensing blade 7 is provided with two mounting portions 73, located at opposite ends of the powder dispensing blade along the first direction. The mounting portions 73 are configured as mounting holes. Along a third direction (a direction intersecting both the first direction and the blade thickness direction), the blade holder 71 has mutually spaced... The blade 72 has a first end 71a and a second end 71b, and a third end 72a and a fourth end 72b spaced apart from each other. The second end 71b is located between the third end 72a and the fourth end 72b, and the third end 72a is located between the first end 71a and the second end 71b. Along the third direction, the first end 71a is farther away from the rotation axis L1 than the second end 71b, and the third end 72a is farther away from the rotation axis L1 than the fourth end 72b.

[0067] A bonding area S is formed between the second end 71b and the third end 72a. The bonding area S is located on at least one of the tool holder 71 and the blade 72. The blade 72 and the tool holder 71 are bonded within the bonding area S. Along the third direction, the mounting part 73 and the welding part 74 are both located within the bonding area S. For example, at least one of the second end 71b and the third end 72a is flush with the mounting part 73. When viewed along the second direction, the mounting part 73 can be circular or elliptical. In this case, the second end 71b and the third end 72a will be tangent to the mounting part 73.

[0068] In some embodiments, the mounting part 73 passes through both the blade 72 and the blade holder 71, so that the blade 72 can be further secured.

[0069] In some embodiments, the third end 72a is further away from the developing roller 21 / rotation axis L1 than the mounting portion 73, or in other words, the third end 72a is further away from the second end 71b than the mounting portion 73, thereby maximizing the area of ​​the bonding region S and allowing the blade 72 to be supported more stably by the blade holder 71.

[0070] [Example 2]

[0071] Figure 7 This is a perspective view of the developing cartridge after the support, conductive components and shell are separated, according to Embodiment 2 of this utility model.

[0072] As described above, the developing roller 21 is rotatably disposed in the housing 1. Specifically, the developing cartridge 100 also includes a bracket 8 disposed at a conductive end. The bracket 8 is fixedly connected to the housing 1, and the developing roller 21 is supported by the bracket 8. The conductive element 5 can be mounted on the housing 1 or the bracket 8. At the same time, the conductive element 5 is also electrically connected to the developing roller 21.

[0073] In some embodiments, the conductive element 5 may be omitted. In this case, at least a portion of the support 8 is made of conductive material, that is, the developing roller 21 can receive power from the imaging device through the support 8. One end of the support 8 is used for electrical contact with the imaging device, and the other end is used for electrical contact with the developing roller 21.

[0074] In some embodiments, the support 8 is made of a non-conductive material, and the developing roller 21 still receives power from the imaging device through the conductive element 5.

[0075] The technical solution described in this embodiment applies regardless of whether the support 8 is made of conductive or non-conductive material.

[0076] like Figure 7 As shown, the bracket 8 includes a support portion 81, a connecting portion 82, and a force-receiving portion 84. The support portion 81 and the force-receiving portion 84 are located at both ends of the connecting portion 82. The support portion 81 is used to support the developing roller 21, and the force-receiving portion 84 is used to receive the pushing force applied by the pushing mechanism in the drum box. The pushing force is then transmitted to the housing 1 through the bracket 8. Finally, the developing roller 21, which is rotatably disposed in the housing 1, maintains contact with the photosensitive drum in the drum box.

[0077] Similarly, the forced pushing mechanism 14 in this embodiment also includes a left forced pushing member 14L and a right forced pushing member 14R. The left forced pushing member 14L is the same as in embodiment four, and the right forced pushing member 14R can be regarded as the force-bearing part 84. That is to say, the right forced pushing member 14R in this embodiment is set on the bracket 8, thereby simplifying the structure of the bottom shell 1t and the top cover 1s.

[0078] In some embodiments, the force-bearing part 84 can directly abut against the housing 1 after receiving the thrust, and in this structure, the structural strength requirement of the bracket 8 can be reduced.

[0079] In some embodiments, the bracket 8 further includes a sealing part 83 for sealing the replenishment port 15. In this way, when the bracket 8 is installed to the housing 1, the replenishment port 15 can be sealed by the sealing part 83. Thus, it is not necessary to provide a separate sealing element for sealing the replenishment port 15. The sealing part 83 can be set at any position of the bracket 8, as long as the replenishment port 15 can be sealed by the sealing part 83.

[0080] In some embodiments, when the developing cartridge 100 is provided with a separate seal for sealing the replenishment port 15, the sealing part 83 will contact the seal, thereby allowing the bracket 8 to be positioned more stably, and correspondingly, the right forced push member 14R is also further positioned and less prone to shaking.

[0081] Furthermore, in this structure, when the force-receiving part 84 receives the thrust, the thrust can also be transmitted through the sealing part 83 abutting against the housing forming the supplementary port 15. In this way, the thrust transmitted to the developing roller 21 through the support part 81 can be reduced, which helps to prevent the thrust from being too large, causing the developing roller 21 to move relative to the housing 1, thereby causing the toner to leak from between the developing roller 21 and the housing 1.

[0082] In some embodiments, when the replenishment port 15 is located at the drive end, the left forced pusher 14L can be located on a seal for sealing the replenishment port 15, and correspondingly, the right forced pusher 14R is located on the faceplate 1s.

[0083] [Example 3]

[0084] Figure 8 This is a perspective view of the developing cartridge being installed towards the imaging device according to Embodiment 3 of this utility model; Figure 9 This is a perspective view of the conductive end of the developing cartridge according to Embodiment 3 of this utility model; Figure 10 This is a state diagram of the detection device in the developing cartridge according to Embodiment 3 of this utility model before the start of detection; Figure 11 This is a state diagram of the detection device in the developing cartridge according to Embodiment 3 of this utility model after the detection is completed.

[0085] Depending on the structure of the right-side panel 91 of the imaging device, this embodiment provides another suitable abutment 17. For example... Figure 8As shown, the right side plate 91 of the device is a straight plate extending along the second direction, but the right side plate 91 of the device is provided with a protrusion (another embodiment of the acted member) 914 protruding toward the receiving cavity Q; the detection device 4 / detection member 41 is a detection protrusion protruding from at least one of the end cover 11 and the housing 1, and the detection protrusion is also provided with a detection surface 4a for abutting / interacting with the detected member 9. Preferably, the detection protrusion is fixedly disposed relative to the housing 1.

[0086] like Figure 9 As shown, in this embodiment, the abutment 17 is configured to be movable relative to the housing 1. Specifically, the abutment 17 is configured as a rotating body that can rotate relative to the housing 1. The driving force transmission assembly 6 also includes a seventh transmission member 67 and an eighth transmission member 68. The abutment 17 is connected to the eighth transmission member 68, and the abutment 17 can also be driven by the eighth transmission member 68. In some deformable ways, the seventh transmission member 67 and the eighth transmission member 68 in the driving force transmission assembly 6 can be reduced to one, or other transmission members can be added, as long as the abutment 17 can abut / interact with the protrusion 914 through the driving force transmission assembly 6, so that the developing cartridge 100 as a whole moves from the first position to the second position.

[0087] The abutment member 17 is provided with an abutment protrusion 171 that can rotate with the eighth transmission member 68. The abutment protrusion 171 has at least an abutment surface 172. Preferably, the abutment protrusion 17 has adjacent abutment surfaces 172 and retaining surfaces 173. The abutment surface 173 is configured as an inclined surface or a helical surface, such as... Figure 10 As shown, when the developing cartridge 100 reaches the predetermined installation position of the imaging device / receiving cavity Q, the abutment protrusion 171 and the bump 914 are in contact with each other or spaced apart, and the detection surface 4a and the object being tested 9 are also in contact with each other or spaced apart, as shown. Figure 11 As shown, as the driving force receiver 3 receives the driving force output from the driving force output unit 93 and begins to rotate, under the action of the eighth transmission unit 68, the abutment 17 begins to move (specifically rotates), the abutment surface 172 begins to abut against the protrusion 914, and the developing cartridge 100 as a whole moves from the first position to the second position, that is, the developing cartridge 100 as a whole moves to the left along the first direction. During the movement of the developing cartridge 100, the detection unit 4 / detection surface 4a abuts against / interacts with the detected unit 9. When the detection is completed, the holding surface 173 of the abutment 17 remains in contact with the protrusion 914, and the developing cartridge 100 remains in the second position. At this time, the abutment 17 is no longer driven and remains stationary.

[0088] As described above, when the detection device 4 completes the detection, the abutment 17 no longer receives driving force and remains stationary. That is, the driving force transmission between the driving force receiving component 3 / driving force transmission component 6 and the abutment 17 is interrupted. The driving force is interrupted in the following ways: for example, the driving force transmission within the driving force transmission component 6 is interrupted, or the driving force transmission between the driving force transmission component 6 and the abutment 17 is interrupted. Specifically, the eighth transmission component 68 or the seventh transmission component 67 is set as a toothed gear, and the interruption of driving force transmission is achieved by using the toothed part of the toothed gear.

[0089] [Example 4]

[0090] Figure 12 and Figure 13 This is a perspective view of the developing cartridge according to Embodiment 4 of this utility model; Figure 14 This is a diagram showing the state of the developing cartridge and its compatible drum cartridge being installed together toward the imaging device according to Embodiment 4 of this utility model.

[0091] In the above embodiments, the detection device 4 is configured as a detection protrusion capable of contacting / interacting with the object being detected 9. In some embodiments, the detection device 4 can also be configured as a chip assembly 300 for establishing a communication connection with an imaging device, the chip assembly 300 being in electrical contact with a stylus in the imaging device, such as... Figure 12 As shown, the detection device 4 / chip assembly 300 includes a mounting bracket 31 and a chip 32. The chip 32 includes a substrate 324 and an electrical contact portion 321. At least the electrical contact portion 321 is supported by the mounting bracket 31. Preferably, the electrical contact portion 321 is disposed on the substrate 324, and the substrate 324 is fixedly disposed on the mounting bracket 31. That is, the chip 32 / electrical contact portion 321 is fixedly disposed relative to the housing 1. The chip 32 / electrical contact portion 321 can move together with the housing 1, thereby realizing electrical contact between the electrical contact portion 321 and the stylus. At the same time, this structural design also helps to simplify the structure of the chip assembly.

[0092] Similarly, the mounting base CA2 can be disposed in at least one of the end cap 11 and the housing 1. Based on the inventive concept of this utility model, the chip assembly 300 / chip 32 / electrical contact 321 can move from the first position to the second position along with the entire developing cartridge 100. When the developing cartridge 100 reaches the second position, the electrical contact 321 makes electrical contact with the stylus. Therefore, the chip assembly 300 / chip 32 / electrical contact 321 can be regarded as the detection element in this embodiment, and the stylus can be regarded as the detection element in this embodiment. The electrical contact between the electrical contact 321 and the stylus is a way in which the detection element and the detection element interact.

[0093] like Figure 13 As shown, in this embodiment, the abutment member 17 protrudes to the right from the right side wall 1b, as... Figure 14As shown, the imaging device also includes a guide rail 92 disposed adjacent to the mounting cavity Q. The guide rail 92 is located on the left and / or right side of the mounting cavity Q and is used to guide the developing cartridge 100 or the combination of the developing cartridge 100 and the drum cassette 200. The guide rail 92 is provided with a guide ramp 921.

[0094] The developing cartridge 100 is installed onto the drum cartridge 200 to form a processing cartridge. The processing cartridge is installed forward along the second direction into the imaging device. During the installation of the processing cartridge, the abutment 17 gradually abuts against the guide ramp 921, thereby gradually lifting the developing cartridge 100 along the third direction until the developing cartridge 100 / processing cartridge reaches the predetermined installation position of the imaging device. At this time, the electrical contact 822 makes electrical contact with the stylus.

[0095] As can be seen, under the interaction of the abutment member 17 as the actuating member and the guide rail 92 / guide ramp 921 as the acted member, the developing cartridge 100 in this embodiment can also move from the first position to the second position. In the first position, the detection device 4 / electrical contact 822 and the stylus cannot interact. In the second position, the detection device 4 / electrical contact 822 and the stylus can interact. In this design, the mounting base CA2 can be fixed relative to the end cap 11 or the housing 1, and its overall structure can be simplified. Correspondingly, the structure of the chip assembly 300 can also be simplified.

[0096] As described above, through the interaction between the detection element 41 and the detected element 9, the parameter information of the developing cartridge 100 can be obtained by the imaging device. Through the electrical contact 321 and the stylus, the developing cartridge 100 / chip 32 / electrical contact 321 establishes a communication connection with the imaging device. The parameter information of the developing cartridge 100 stored in the chip 32 can also be obtained by the imaging device. Therefore, the electrical contact 321 in this embodiment can also be regarded as a detection element, and the stylus can also be regarded as a detected element.

[0097] In the first position, the detection element and the detected element cannot interact, meaning that the detection element cannot contact the detected element, or even if the driving force receiver 3 receives a driving force, the detection element will not interact with the detected element, and the parameter information of the developing cartridge 100 cannot be acquired by the imaging device. In the second position, the detection element and the detected element can interact, meaning that the detection element and the detected element are in direct contact. When the driving force receiver 3 receives a driving force, the detection element directly forces the detected element to complete a predetermined movement. Alternatively, the detection element and the detected element are not in direct contact. When the driving force receiver 3 receives a driving force, the detection element moves and contacts the detected element, thereby forcing the detected element to complete a predetermined movement. Or, the detection element is in electrical contact with the detected element. Finally, the parameter information of the developing cartridge 100 is acquired by the imaging device.

[0098] In the above embodiment, when the abutting member 17 abuts against the guide slope 921, only the developing cartridge 100 moves upward in the third direction. However, this may cause the developing roller 21 and the photosensitive drum to separate from each other, thereby affecting the imaging quality. In an improved embodiment, the abutting member 17 is still disposed in the developing cartridge 100, and the developing cartridge 100 is restricted in the drum box 200 by a limiting mechanism. In this way, when the abutting member 17 abuts against the guide slope 921, the developing cartridge 100 and the drum box 200 can move upward together in the third direction, and the relative positions of the developing roller 21 and the photosensitive drum will not change, which is beneficial to maintaining stable imaging quality.

[0099] In some embodiments, the abutment 17 can also be disposed on the drum cassette 200. As the processing cassette is installed, the abutment 17 abuts against the guide ramp 921. Along the third direction, the entire processing cassette is gradually lifted, and the electrical contact 822 located in the developing cassette 100 also moves upward along the third direction. Finally, the electrical contact 822 makes electrical contact with the stylus. This structure is also conducive to maintaining stable imaging quality.

[0100] like Figure 13 As shown, the right forced pusher 14R is disposed on the sealing part 83. This design helps to simplify the structure of the housing 1 or the bracket 8. The right forced pusher 14R can also serve as an operating part for the user to operate the sealing part 83. Compared with the sheet-like operating part disposed on the sealing part 83, the right forced pusher 14R has a more three-dimensional structure and is easier for the user to operate.

[0101] [Example 5]

[0102] like Figure 15 , 16 As shown, in this embodiment, during the separation of the developing roller 21 and the photosensitive drum, the force-applying component of the imaging device moves along the second direction from the rear along an arc-shaped trajectory to the front. The developing cartridge 100 also includes a chip assembly 300 and a force receiving component 131 fixedly disposed relative to the housing 1. The chip assembly 300 relative to the housing 1 can be either movable or fixed. The chip assembly 300 includes a mounting bracket 31 and a chip 32. The mounting bracket 31 is connected to the housing 1. For the fixed chip assembly 300, an elastic pad, such as a silicone pad or a sponge pad, is provided between the mounting bracket 31 and the chip 32, giving the chip a certain amount of room to move and maintaining an electrical connection with the contact pin in the imaging device. When the imaging device is not developing, the force-applying component 131a in the imaging device applies a separation force to the force receiving component 131, forcing the developing cartridge 100 and the drum cassette 200 to move relative to each other, thereby causing the developing roller 21 and the photosensitive drum to separate. After separation, it is convenient to clean the photosensitive drum.

[0103] Along the first direction, the force receiver 131 is located at the left and / or right end of the developing cartridge 100, and at least a portion of the force receiver 131 is within the area of ​​the movement trajectory of the force-applying member 131a. When the imaging device is not developing, the force-applying member 131a moves, thereby forcing the force receiver 131 to move, causing the developing roller 21 and the photosensitive drum to separate from each other.

[0104] The force receiving member 131 includes a squeezed part 1311, which can be a plane or a curved surface. When the imaging device is not developing, the force applying member 131a will squeeze the squeezed part 1311 during its movement, forcing the force receiving member 131 to move backward, thereby separating the developing roller 21 from the photosensitive drum. The drum cassette 200 is provided with a guide part. During the separation movement, the guide part can force the developing cassette 100 to undergo a small-amplitude upward and rotational composite movement. The chip assembly 300 maintains an electrical connection with the contact pin in the imaging device throughout the entire process of the separation of the developing roller 21 and the photosensitive drum.

[0105] In some embodiments, the force receiving member 131 further includes a locking part 1313, which can be a flat surface or a concave surface. When the developing roller 21 and the photosensitive drum have separated, the force applying member 131a stops moving and is locked in the locking part 1313, which can prevent relative sliding and improve stability.

[0106] In some embodiments, the force receiving member 131 further includes a shaking part 1312. The shaking part 1312 may be provided on the outer surface of the squeezed part 1311, or it may be formed at the junction of the squeezed part 1311 and the locking part 1313. When the force applying member 131a in the imaging device applies a separation force to the force receiving member 131, forcing the developing cartridge 100 and the drum cassette 200 to move relative to each other, the force applying member 131a will shake when it passes the shaking part 1312. This shaking can loosen the toner in the toner cartridge, increase the fluidity of the toner, and in some embodiments, it can also move the toner in the developing cartridge 100 toward the developing roller 21.

[0107] In some embodiments, the force receiving member 131 is further provided with a reinforcing rib 1314 and / or a torque reinforcing part 1315. The reinforcing rib 1314 is located at one end near the housing 1, and the reinforcing rib 1314 shall not interfere with the force applying member 131a. The reinforcing rib 1314 can improve the strength of the force receiving member 131. The torque reinforcing part 1315 is located on the side of the force receiving member 131 in the direction of compression and twisting, that is, the torque reinforcing part 1315 is located at the edge of the front part of the force receiving member 131 along the second direction. Preferably, the torque reinforcing part 1315 is located on the other side of the locking part 1313, that is, the torque reinforcing part 1315 is located in front of the compressed part 1311 along the second direction. The torque reinforcing part 1315 can improve the strength of the edge of the force receiving member 131 and prevent the force receiving member 131 from deforming or breaking due to excessive torque during the compression process.

[0108] Preferably, the force receiving member 131 is located at the right end of the developing cartridge 100 in the first direction. The force receiving member 131 is elongated and its thickness gradually increases along the direction of the compression trajectory. The elongated block also has a compression portion 1311 and a locking portion 1313. The compression portion 1311 is an arc-shaped curved surface, and the locking portion 1313 is a slightly concave surface. The compression portion 1311 and the locking portion 1313 are arranged adjacent to each other. The force receiving member 131 can be provided with reinforcing ribs 1314 and / or torque reinforcing portions 1315 according to the actual force conditions, thereby strengthening the strength of the force receiving member 131 and reducing deformation. In this embodiment, the other end of the developing cartridge 100 is driven by the force-applying member 131a of the drum cassette 200. Therefore, under the force at both ends of the developing cartridge 100, the developing roller 21 and the photosensitive drum separate from each other.

[0109] like Figure 15 As shown, in some embodiments, the chip assembly 300 is fixedly disposed at the left end of the developing cartridge 100 in the first direction. When the developing roller 21 and the photosensitive drum are separated, when viewed from right to left along the first direction, the tangent of the contact point between the force-applying member 131a and the force-receiving member 131 and the contact plane between the chip assembly 300 and the contact pin in the imaging device form an angle a1. The angle a1 is in the range of 0°-30°. The electrical contact point between the chip assembly 300 and the contact pin in the imaging device has a certain amount of room for movement. Within the range of angle a1, it can be ensured that the developing cartridge 100 and the drum 200 maintain electrical connection throughout the entire process of relative movement.

[0110] like Figure 16 As shown, in some embodiments, the force receiver 131 extends from at least one of the end cap 11 and the housing 1 along a first direction. Specifically, the force receiver 131 is integrally formed with the end cap 11 and / or the housing 1. This embodiment reduces the number of parts and facilitates assembly.

[0111] [Example 6]

[0112] Based on the inventive concept of Embodiment 5, this embodiment further optimizes the structure of the force receiving member 131. Therefore, components identical to those in the above embodiments will be directly referenced, such as... Figure 17 As shown, in some embodiments, the conductive element 5 and the force receiver 131 are separately disposed; the force receiver 131 is a separate part and is fixedly connected to the developing cartridge 100. The conductive element 5 is fixed between the force receiver 131 and the housing 1, and the force receiver 131 is provided with an exposure port 1316, in which screws are fixedly locked. That is, the force receiver 131 and the conductive element 5 are fixedly connected together, reducing the number of fixing screws and making the structure more compact and ingenious.

[0113] [Example 7]

[0114] Based on the inventive concept of Embodiment 5, this embodiment further optimizes the structure of the force receiving member 131. Therefore, components identical to those in the above embodiments will be directly referenced, such as... Figure 18 As shown, in some embodiments, the force receiving element 131 is integrally formed with the conductive element 5. Specifically, the force receiving element 131 is formed by the conductive element 5 extending along a first direction. The conductive element 5 is fixedly connected to the housing 1. At least a portion of the conductive element 5 is made of conductive material. That is, the developing roller 21 can receive power from the imaging device through the conductive element 5. One end of the conductive element 5 is used for electrical contact with the imaging device, and the other end is used for electrical contact with the developing roller 21.

Claims

1. A developing cartridge, suitable for imaging devices equipped with a power output component, characterized in that, The developing cartridge includes: The shell has a cavity for containing toner; The developing roller is rotatably mounted in the housing and is used to supply the toner stored in the housing to the photosensitive drum outside the developing cartridge. A driving force receiver is used to receive driving force from an imaging device to drive the developing roller to rotate; Conductive components, directly or indirectly mounted on the housing, are used to receive power from the imaging equipment and supply it to the developing roller; The chip assembly is fixed relative to the housing; A force receiver is fixedly disposed relative to the housing. Along the first direction, the force receiver is disposed at the conductive end of the developing cartridge, and at least a portion of the force receiver is located within the area of ​​the movement trajectory of the force-applying member. The end of the developing cartridge containing the conductive component is defined as the conductive end, and the end containing the driving force receiving component is defined as the driving end.

2. The developing cartridge according to claim 1, characterized in that, The chip assembly includes a mounting bracket and a chip, with an elastic pad between the mounting bracket and the chip, and the mounting bracket is connected to the housing.

3. The developing cartridge according to claim 1, characterized in that, During the separation of the developing roller and the photosensitive drum, the force-applying component of the imaging device moves from the rear along an arc-shaped trajectory in the second direction to the front.

4. The developing cartridge according to claim 1, characterized in that, The force receiving member includes a squeezed part and a locking part. During the movement of the force applying member, the squeezed part is squeezed. When the separation process is completed, the force applying member abuts against the locking part.

5. The developing cartridge according to claim 1, characterized in that, The force receiving component also includes a shaking part, which is located within the area of ​​the motion trajectory of the force applying component.

6. The developing cartridge according to claim 1, characterized in that, The force receiving component is also provided with reinforcing ribs and / or torque reinforcement.

7. The developing cartridge according to any one of claims 1-6, characterized in that, The chip assembly is fixedly installed at the drive end of the developing cartridge in the first direction. When the separation process is completed, when viewed from right to left along the first direction, the cross-section of the contact point between the force-applying component and the force-receiving component and the contact plane between the chip assembly and the electric probe in the imaging device form an angle a1, which is in the range of 0°-30°.

8. The developing cartridge according to any one of claims 1-6, characterized in that, The developing cartridge includes a force receiving component and a conductive component, which are separately arranged. The conductive component is fixed between the housing of the developing cartridge and the force receiving component.

9. The developing cartridge according to any one of claims 1-6, characterized in that, The developing cartridge also includes an end cap connected to the housing, and a force receiving member extends from at least one of the housing and the end cap of the developing cartridge along a first direction.

10. The developing cartridge according to any one of claims 1-6, characterized in that, The force receiving component and the conductive component are integrally formed, and at least a portion of them are made of conductive material.

Images