Developing cartridge

Abstract

The developing box provided by the utility model is detachably arranged on the imaging equipment, the developing box comprises a developing shell for accommodating a developing agent and a developing roller positioned in the developing shell, the developing roller can rotate around a rotating axis extending in the left-right direction, and the developing roller is used for bearing the developing agent and supplying the developing agent to the outside of the developing box; a conductive assembly and a second end cover are arranged at one end of the developing box in the left-right direction, the second end cover is fixedly arranged relative to the developing shell, the conductive assembly is used for receiving electric power from the imaging equipment, the conductive assembly directly or indirectly supplies the electric power to the developing roller at least, and the conductive assembly and the second end cover are integrally formed.

Description

Technical Field

[0001] The utility model relates to the technical field of electrophotographic imaging, in particular to a developing cartridge detachably mounted in an electrophotographic imaging device. Background Art

[0002] The developing cartridge can be detachably mounted in an electrophotographic imaging device. The developing cartridge includes a developing housing for containing a developer and a developing roller located in the developing housing. The developing roller is used to supply the developer to the outside of the developing cartridge. The developing roller can rotate around a rotation axis, and the direction parallel to the rotation axis is the left-right direction. A driving member is provided at one end of the developing cartridge in the left-right direction. The driving member is used to receive a driving force from the imaging device to drive the developing roller to rotate. Along the left-right direction, the end of the developing cartridge provided with the driving member is the driving end. A conductive component is provided at the other end of the developing cartridge in the left-right direction. The conductive component is used to form an electrical connection between the imaging device and at least the developing roller in the developing cartridge. Along the left-right direction, the end of the developing cartridge provided with the conductive component is the conductive end.

[0003] The developing cartridge includes a first end cap and a second end cap. Along the left-right direction, the first end cap and the second end cap are spaced apart. The first end cap is located at the driving end, and the second end cap is located at the conductive end. A support member is further provided at the conductive end of the developing cartridge. The support member is used to support the conductive component, and the support member is located between the developing housing and the second end cap. During the assembly process of the developing cartridge, it is necessary to first install the conductive component onto the support member, then install the support member onto the developing housing, and finally install the second end cap onto the developing housing, and the conductive component is positioned in the developing cartridge.

[0004] Since the conductive component, the support member, and the second end cap are separately provided, the assembly process will become cumbersome and will cause assembly errors between the conductive component and other components, affecting the assembly accuracy of the conductive component. Summary of the Utility Model

[0005] The developing cartridge provided by the utility model can solve at least one of the above technical problems. The specific solution is as follows.

[0006] A developing cartridge is detachably mounted to an imaging device. The developing cartridge includes a developing housing for containing a developer and a developing roller located in the developing housing. The developing roller can rotate around a rotation axis extending in the left-right direction. The developing roller is used to carry the developer and supply the developer to the outside of the developing cartridge.

[0007] A conductive component and a second end cap are provided at one end of the developing cartridge in the left-right direction. The second end cap is fixedly arranged relative to the developing housing. The conductive component is used to receive power from the imaging device, and the conductive component directly or indirectly supplies power to at least the developing roller. The conductive component and the second end cap are integrally formed.

[0008] The developing cartridge is further provided with at least one guiding member for guiding the installation of the developing cartridge, and one of the guiding members is connected to the second end cap.

[0009] When observed from left to right, at least a part of the guiding member coincides with the conductive component.

[0010] The guiding member is made of a conductive material.

[0011] The developing cartridge further includes a doctor blade and a powder feeding roller located in the developing housing. The doctor blade is used to control the thickness of the developer on the developing roller, and the powder feeding roller is used to convey the developer to the developing roller; the conductive component at least includes a first conductive member and a second conductive member. The first conductive member is used to receive power from the imaging device and supply the power to the developing roller directly or indirectly, and the second conductive member is used to receive power from the imaging device and supply the power to the doctor blade and / or the powder feeding roller directly or indirectly.

[0012] The first conductive member includes a first power receiving end and a first power output end that are electrically connected to each other. The first power receiving end is used to receive power from the imaging device, and the first power output end is used to supply the power to the developing roller.

[0013] The second conductive member includes a second power receiving end and a second power output end that are electrically connected to each other. The second power receiving end is used to receive power from the imaging device, and the second power output end is used to supply the power to the doctor blade and / or the powder feeding roller.

[0014] The first conductive member, the second end cap and the guiding member are integrally formed.

[0015] Compared with the prior art, in the developing cartridge provided by the present utility model, a support member is no longer provided to support the conductive component, and the conductive component is integrally formed with the second end cap. During the assembly process of the developing cartridge, the conductive component is installed on the developing housing together with the second end cap, which reduces the steps of the assembly process and also reduces the assembly error of the conductive component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the developing cartridge related to the present utility model.

[0017] Figure 2 is an exploded view of some components of the developing cartridge related to the present utility model.

[0018] Figure 3 and Figure 4 is a perspective view of the second end cap of the developing cartridge related to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0020] The developing cartridge 100 can be detachably installed in an imaging device, such as Figure 1 As shown, the developing cartridge 100 includes a developing housing 10 and a developing roller 20 located in the developing housing 10. The developing housing 10 is used to accommodate a developer, and the developing roller 20 is used to supply the developer to the outside of the developing cartridge 100. The developing roller 20 can rotate about a rotation axis M extending in the left-right direction.

[0021] Continuing as Figure 1 As shown, a driving member 30 is provided at one end of the developing cartridge 100 in the left-right direction. The driving member 30 is used to receive a driving force from the imaging device to drive the developing roller 20 to rotate. Along the left-right direction, the end of the developing cartridge 100 where the driving member 30 is provided is the driving end; a conductive component 40 is provided at the other end of the developing cartridge 100 in the left-right direction. The conductive component 40 is used to receive power from the imaging device, and the conductive component 40 directly or indirectly supplies power to at least the developing roller 20 in the developing cartridge 100. Along the left-right direction, the end of the developing cartridge 100 where the conductive component 40 is provided is the conductive end.

[0022] The developing cartridge 100 further includes a first end cap 50 and a second end cap 60. The first end cap 50 and the second end cap 60 are spaced apart in the left-right direction, and the first end cap 50 and the second end cap 60 are respectively connected to the developing housing 10. That is, the first end cap 50 is located at the driving end, the second end cap 60 is located at the conductive end, the second end cap 60 is fixedly arranged relative to the developing housing 10, and the second end cap 60 is fixedly installed on the developing housing 10.

[0023] The developing cartridge 100 further includes a doctor blade and a powder feeding roller located in the developing housing 10. The doctor blade is used to control the thickness of the developer on the developing roller 20, and the powder feeding roller is used to convey the developer to the developing roller 20.

[0024] As Figure 2 、 Figure 3 and Figure 4 As shown, the conductive component 40 at least includes a first conductive member 41 and a second conductive member 42. The first conductive member 41 is used to receive power from the imaging device and directly or indirectly supply power to the developing roller 20. The second conductive member 42 is used to receive power from the imaging device and directly or indirectly supply power to the doctor blade and / or the powder feeding roller.

[0025] The first conductive member 41 includes a first power receiving end 411 and a first power output end 412 that are electrically connected to each other. The first power receiving end 411 is used to receive power from the imaging device, and the first power output end 412 is used to supply power to the developing roller 20; similarly, the second conductive member 42 includes a second power receiving end 421 and a second power output end 422 that are electrically connected to each other. The second power receiving end 421 is used to receive power from the imaging device, and the second power output end 422 is used to supply power to the doctor blade and / or the powder feeding roller.

[0026] The conductive component 40 and the second end cap 60 are integrally formed by two-shot injection molding, so that the conductive component 40 can be installed in the developing housing 10 together with the second end cap 60, making the assembly of the developing cartridge 100 simple.

[0027] As Figure 1 、 Figure 2 and Figure 3 shown, the developing cartridge 100 is further provided with at least one guiding member. During the installation of the developing cartridge 100, the guiding member is used to guide the installation of the developing cartridge 100. One of the guiding members 70 is connected to the second end cap 60. When viewed from left to right, at least a part of the guiding member 70 coincides with the conductive component 40 / the first electrical output terminal 412.

[0028] In some embodiments, the first conductive member 41, the second end cap 60 and the guiding member 70 are integrally formed, which can not only reduce the influence of the vibration generated by the guiding member 70 during the installation of the developing cartridge 100 on the first conductive member 41, but also reduce the assembly steps of the developing cartridge 100.

[0029] In some embodiments, the first conductive member 41 can also be directly supported by the guiding member 70, so that the first conductive member 41 can supply the power of the imaging device to the developing roller 20 more stably.

[0030] In some embodiments, the guiding member 70 can also be made of a conductive material, which can reduce the manufacturing process of the developing cartridge 100 and improve production efficiency.

[0031] [Advantageous Effects]

[0032] Compared with the prior art, the developing cartridge 100 provided by the present utility model has the following advantageous effects:

[0033] First, the developing cartridge 100 no longer has a support member to support the conductive component 40. The conductive component 40 and the second end cap 60 are integrally formed. During the assembly process of the developing cartridge 100, the conductive component 40 is installed on the developing housing 10 together with the second end cap 60, which reduces the steps of the assembly process and also reduces the assembly error of the conductive component.

[0034] Second, the developing cartridge 100 no longer has a support member to support the conductive component 40, which can also reduce the number of components in the developing cartridge 100 and lower the production cost.

[0035] Third, the conductive component 40 and the second end cap 60 are integrally formed, which can also enable the conductive component to supply the power of the imaging device to the developing cartridge 100 more stably.

Claims

1. A developing cartridge, detachably mounted to an image forming apparatus, the developing cartridge comprising a developing housing for accommodating a developer and a developing roller located in the developing housing, the developing roller being rotatable about a rotation axis extending in a left-right direction, the developing roller being used to carry the developer and supply the developer to the outside of the developing cartridge; It is characterized in that A conductive component and a second end cover are provided at one end of the developing box in the left and right directions. The second end cover is fixedly arranged relative to the developing shell. The conductive component is used to receive power from the imaging device, and the conductive component directly or indirectly supplies power to at least the developing roller. The conductive component is formed integrally with the second end cover.

2. The developing cartridge according to claim 1, characterized in that: The developing box is also provided with at least one guiding member, which is used for guiding the installation of the developing box, and one of the guiding members is connected to the second end cover.

3. The developing cartridge according to claim 2, characterized in that: Viewed from left to right, at least a portion of the guide member overlaps with the conductive component.

4. The developing cartridge according to claim 2, wherein: The guide member is made of conductive material.

5. The developing cartridge according to claim 2, characterized in that: The developer box also includes a powder knife and a powder feeding roller located in the developer shell, the powder knife is used to control the thickness of the developer on the developer roller, and the powder feeding roller is used to transport the developer to the developer roller; the conductive component includes at least a first conductive member and a second conductive member, the first conductive member is used to receive power from the imaging device and directly or indirectly supply power to the developer roller, and the second conductive member is used to receive power from the imaging device and directly or indirectly supply power to the powder knife and / or the powder feeding roller.

6. The developing cartridge according to claim 5, characterized in that: The first conductive member includes a first power receiving end and a first power output end electrically connected to each other, the first power receiving end is used to receive power from the image forming device, and the first power output end is used to supply power to the developing roller.

7. The developing cartridge according to claim 5, characterized in that: The second conductive member comprises a second electrical receiving end and a second electrical output end electrically connected to each other, the second electrical receiving end is used to receive power from the imaging device, and the second electrical output end is used to supply power to the powder discharge knife and / or the powder feeding roller.

8. The developing cartridge according to claim 5, characterized in that: The first conductive member, the second end cover and the guide member are formed integrally.

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