Process cartridge

Abstract

The present invention relates to a process cartridge detachably mounted in an imaging device provided with a conductive part, a power output member, and a force application mechanism. The process cartridge comprises: a first unit comprising a developing member; a second unit comprising a photosensitive member; a driving force receiving assembly used for receiving a driving force from the imaging device so as to drive the developing member and / or the photosensitive member to rotate; a voltage adjustment apparatus, one end thereof being electrically connected to the developing member and the other end thereof being electrically connected to the conductive part, wherein the voltage adjustment device is used for receiving an acting force applied by the force application mechanism, so that the developing member and the conductive part switch between an electrically connected state and an electrically disconnected state; and a power reception and transmission assembly, wherein at least a portion thereof is arranged on a non-drive side, and is used for contacting the power output member to receive power and transmitting the received power to the developing member. There is no need to provide a separation mechanism for forcibly separating the developing member and the photosensitive member in the process cartridge, thereby reducing the wear resistance requirements for the material of the process cartridge.

Description

Processing box Technical Field

[0001] This invention relates to the field of electrophotographic imaging, and more particularly to a processing box that can be detachably installed in an electrophotographic imaging device. Background Technology

[0002] A processing cartridge comprising a first unit and a second unit is available, which can be detachably installed into an imaging device. The first unit contains a developing element, and the second unit contains a photosensitive element. The developing element is used to supply developer to the photosensitive element, thereby developing an electrostatic latent image formed on the surface of the photosensitive element.

[0003] The processing cartridge also includes a separation force receiver. When the processing cartridge does not need to be developed in the imaging device, the separation force receiver is used to receive separation force from the imaging device to force the developing element and the photosensitive element to change from a state of being close to each other to a state of being separated from each other. Therefore, the developer carried by the developing element will not reach the surface of the photosensitive element.

[0004] When the processing cartridge needs to be developed again in the imaging device, the developing element and the photosensitive element move closer to each other again. During the process of the developing element and the photosensitive element separating and moving closer to each other, it is achieved by forcing the first unit to rotate around the rotation axis relative to the second unit. During the service life of the processing cartridge, the developing element and the photosensitive element need to undergo multiple processes of moving closer and separating, which places high demands on the wear resistance of the rotation axis. Summary of the Invention

[0005] In view of the above, the present invention provides a processing box employing the following technical solution to solve the aforementioned technical problems, specifically:

[0006] A processing cartridge, detachably mounted in an imaging device equipped with conductive components, a power output component, and a force application mechanism, comprises: a first unit including a first housing and a developing element rotatably disposed within the first housing, the rotation axis of the developing element extending in the x-direction; a second unit including a second housing and a photosensitive element rotatably disposed within the second housing, the developing element supplying developer stored in the first housing to the photosensitive element, and the developing element and the photosensitive element always maintaining a close proximity to each other; and a driving force receiving assembly for receiving driving force from the imaging device to drive the developing element and / or the photosensitive element to rotate. Rotate along the x-direction, the side where the driving force receiving component is located is the driving side, and the side opposite to the driving side is the non-driving side; a voltage regulating device, one end of which is used to be electrically connected to the developing element, and the other end of which is used to be electrically connected to the conductive component, at least a part of which is arranged on the same side as the driving force receiving component, the voltage regulating device is used to receive the force applied by the force applying mechanism, so that the developing element and the conductive component switch between a state of mutual electrical connection and a state of mutual electrical disconnection; a power receiving and transmitting component, at least a part of which is arranged on the non-driving side, is used to contact the power output component to receive power, and to transmit the received power to the developing element. Attached Figure Description

[0007] Figure 1 is a perspective view of the processing box according to Embodiment 1 of the present invention.

[0008] Figure 2A is a perspective view of the drive side of the processing box according to Embodiment 1 of the present invention after some components are hidden.

[0009] Figure 2B is a perspective view of the second box body and the drive-side end cover of the processing box according to Embodiment 1 of the present invention on the drive side.

[0010] Figure 3 is a side view of the processing box according to Embodiment 1 of the present invention after it has been installed in the imaging device, viewed along the x-direction.

[0011] Figure 4A is a side view of the processing box according to Embodiment 1 of the present invention when it is installed in the imaging device, with the drive side end cover hidden and the force application mechanism in the middle position, viewed along the x-direction.

[0012] Figure 4B is a side view of the processing box according to Embodiment 1 of the present invention when it is installed in the imaging device, with the drive side end cover hidden and the force application mechanism in the position where the first force is applied, viewed along the x direction.

[0013] Figure 4C is a side view along the x-direction of the processing box according to Embodiment 1 of the present invention when it is installed in the imaging device, after the drive side end cover is hidden, and the force application mechanism returns to the middle position.

[0014] Figure 4D is a side view of the processing box according to Embodiment 1 of the present invention when it is installed in the imaging device, with the drive side end cover hidden and the force application mechanism in the position where the second force is applied, viewed along the x-direction.

[0015] Figure 5 is a perspective view of the drive side of the processing box according to Embodiment 2 of the present invention after some components are hidden.

[0016] Figure 6 is a schematic diagram of the circuit connection of the developing element, the power receiving element, and the electrical connector in the processing box according to Embodiment 3 of the present invention.

[0017] Figure 7A is an exploded view of some components on the drive side of the processing box according to Embodiment 3 of the present invention.

[0018] Figure 7B is an exploded view of some components on the non-driving side of the processing box according to Embodiment 3 of the present invention.

[0019] Figure 7C is a perspective view of the non-driving side of the processing box according to Embodiment 3 of the present invention.

[0020] Figures 8A and 8B are perspective views of the moving parts in the processing box according to Embodiment 3 of the present invention after they have been installed onto the protective cover.

[0021] Figure 9 is an exploded view of the processing box after the movable part and the cover are separated, according to Embodiment 3 of the present invention.

[0022] Figures 10A and 10B are perspective views of the second force receiving part in the processing box according to Embodiment 3 of the present invention.

[0023] Figure 11 is a perspective view of the first force receiving part in the processing box according to Embodiment 3 of the present invention.

[0024] Figure 12A is a perspective view of the state of each component in the voltage regulation device GD during the development of the processing cartridge according to Embodiment 3 of the present invention.

[0025] Figure 12B is a perspective view of the state of each component in the voltage regulation device GD when the processing box is not developing according to Embodiment 3 of the present invention.

[0026] Figure 13 is a perspective view of the deceleration device according to Embodiment 4 of the present invention.

[0027] Figure 14A is a plan view of the deceleration device when the developing element receives the driving force in the processing box according to Embodiment 4 of the present invention, viewed along the direction perpendicular to the x-direction.

[0028] Figure 14B is a plan view of the deceleration device when the developing element receives no driving force in the processing box according to Embodiment 4 of the present invention, viewed along the direction perpendicular to the x-direction.

[0029] Figure 15 is a perspective view of the deceleration device according to Embodiment 5 of the present invention.

[0030] Figure 16 is a perspective view of the deceleration device according to Embodiment 6 of the present invention. Detailed Implementation

[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] [Overall structure of the processing box]

[0033] The processing box 100 can be detachably installed into the imaging device. The processing box 100 includes a first unit 1, a second unit 2 and a first end cap 4. The first unit 1 and the second unit 2 are connected by the first end cap 4. Specifically, the first unit 1 and the second unit 2 are connected by the first end cap 4.

[0034] The first unit 1 includes a first housing 10 and a developing element 11 rotatably disposed in the first housing 10 (as shown in FIG4A). The second unit 2 includes a second housing 20 and a photosensitive element 21 rotatably disposed in the second housing 20 (as shown in FIG2A). The developing element 11 and the photosensitive element 21 are arranged opposite to each other. When the processing cartridge 100 is working / developing, the developing element 11 and the photosensitive element 21 approach each other, and an electrostatic latent image is formed on the surface of the photosensitive element 21. The developing element 11 is used to supply the developer stored in the first housing 10 to the surface of the photosensitive element to develop the electrostatic latent image.

[0035] The processing box 100 further includes a drive force receiving assembly 3 for receiving driving force from the imaging device and driving the developing element 11 and / or the photosensitive element 21 to rotate. At least a portion of the drive force receiving assembly 3 is exposed outwardly through a first end cap 4. As shown in FIG1, the drive force receiving assembly 3 includes a first drive force receiving member 31 for providing driving force to the developing element 11 and a second drive force receiving member 32 for providing driving force to the photosensitive element 21. The first drive force receiving member 31 rotates about a first rotation axis L1, and the second drive force receiving member 32 rotates about a second rotation axis L2. 2. Rotation: The first rotation axis L1 and the second rotation axis L2 are parallel to each other. In this embodiment, the first driving force receiver 31 receives driving force from the imaging device and transmits it to the developing element 11 through the gear set. The second driving force receiver 32 is disposed at the end of the photosensitive element 21. Therefore, the photosensitive element can be directly driven by the second driving force receiver 32 to rotate around the second rotation axis L2. In other possible implementations, the first driving force receiver 31 can also directly drive the developing element 11 to rotate, and the second driving force receiver 32 can also indirectly drive the photosensitive element 21 to rotate.

[0036] In the following text, for ease of description, the extension directions of the developing element 11 and the photosensitive element 21 are defined as follows: the extension directions of the first rotation axis L1 and the second rotation axis L2 are defined as the x-direction / longitudinal direction; the arrangement direction of the first housing 10 and the second housing 20 (the arrangement direction of the developing element 11 and the photosensitive element 21) is defined as the y-direction / lateral direction; the x-direction and the y-direction intersect, and the direction intersecting the x-direction and the y-direction is defined as the z-direction / vertical direction; wherein, the driving force receiving component 3 and the first end cap 4 are both located at the x-direction end of the processing housing 100, the side where the driving force receiving component 3 is located is called the driving side, and the first end cap 4 is the driving side end cap (hereinafter referred to as "first end cap 4"); the side opposite to the driving side is the non-driving side, and the direction from the driving side to the non-driving side is the -x-direction. Conversely, the direction from the non-driving side to the driving side is the +x direction; the direction from the first cartridge 10 to the second cartridge 20 (from the developing element 11 to the photosensitive element) is the -y direction, and conversely, the direction from the second cartridge 20 to the first cartridge 10 (from the photosensitive element to the developing element 11) is the +y direction; the direction from the side where the developing element 11 and photosensitive element 21 are not installed to the side where the developing element 11 and photosensitive element 21 are installed is the -z direction, and conversely, the direction from the side where the developing element 11 and photosensitive element 21 are installed to the side where the developing element 11 and photosensitive element 21 are not installed is the +z direction. When the processing cartridge 100 is installed in the imaging device, the developing element 11 and photosensitive element 21 will be located below the processing cartridge 100, that is, the +z direction is upward and the -z direction is downward.

[0037] In some embodiments, the first end cap 4 and the second box body 20 are integrally formed, which can reduce the assembly steps of the processing box 100 and reduce the assembly error between the components in the processing box 100.

[0038] As shown in Figure 1, the first end cap 4 includes an end cap body 40 and a supported mechanism 47 disposed on the end cap body 40. The driving force receiving component 3 is exposed through a through hole disposed on the end cap body 40. Through the supported mechanism 47, the processing box 100 can be stably supported in the imaging device.

[0039] Voltage regulation device

[0040] During development in the processing cartridge 100, the developing element 11 and the photosensitive element 21 approach each other, for example, they come into contact. The developing element 11 receives a developing voltage from the imaging device, causing the developer carried by the developing element 11 to reach the surface of the photosensitive element 21 under the action of the electric field force formed between the developing element 11 and the photosensitive element 21. After the processing cartridge 100 finishes developing, since the developing element 11 is still in the state of receiving the developing voltage from the imaging device, in order to prevent the developer on the surface of the developing element 11 from continuing to move towards the surface of the photosensitive element 21, in the existing solution, a separation mechanism is also provided in the processing cartridge. Through this separation mechanism, a separation force is received from the imaging device, and the developing element and the photosensitive element change from a state of approaching each other to a state of separation.

[0041] Unlike the existing structure, the processing cartridge 100 of the present invention no longer has the separation mechanism, but instead has a voltage regulating device GD. One end of the voltage regulating device GD is used to be electrically connected to the developing element 11, and the other end is used to be electrically connected to the conductive component in the imaging device. In other words, the voltage regulating device GD is located between the developing element 11 and the conductive component of the imaging device. The developing element 11 and the photosensitive element 21 are always kept close to each other. After the processing cartridge 100 has finished developing in the imaging device, the voltage value actually borne by the developing element 11 is less than the predetermined voltage value U through the voltage regulating device GD, so that the developer carried by the developing element 11 cannot reach the surface of the photosensitive element 21.

[0042] The predetermined voltage value refers to the minimum voltage required for the developer to travel from the surface of the developing element 11 to the surface of the photosensitive element 21. When the actual voltage borne by the developing element 11 is less than the predetermined voltage value, no electric field force is formed between the developing element 11 and the photosensitive element 21, or the electric field force formed between them is insufficient to allow the developer carried by the developing element 11 to reach the surface of the photosensitive element 21.

[0043] As shown in Figure 1, the voltage regulating device GD includes a movable member 6 and an electrical connector 13. The electrical connector 13 includes a first conductive member 131 and a second conductive member 132. The first conductive member 131 is used to maintain an electrical connection with the developing element 11, and the second conductive member 132 is used to contact a conductive component in the imaging device. Therefore, the developing element 11 can be electrically connected to the conductive component through the electrical connector 13. The movable member 6 is configured to be movable relative to the developing element 11 / photosensitive element 21, so that the electrical connection between the developing element 11 and the conductive component is maintained. The switching between open and closed states, or in other words, the switching between the voltage actually borne by the developing element 11 and the voltage value U2, is as follows: when the electrical connection between the developing element 11 and the conductive component is open, the voltage actually borne by the developing element 11 is the first voltage value U1; when the electrical connection between the developing element 11 and the conductive component is closed, the voltage actually borne by the developing element 11 is the second voltage value U2. Wherein, the first voltage value U1 is less than the second voltage value U2, the first voltage value U1 is less than a predetermined voltage value U, and the second voltage value U2 is not less than the predetermined voltage value U.

[0044] In practice, the first voltage value U1 can be a positive voltage or a negative voltage, and the second voltage value U2 can also be a positive voltage or a negative voltage. However, regardless of whether the first voltage value U1 is positive or negative, or the second voltage value U2 is positive or negative, the technical solution of the present invention is applicable. Therefore, when comparing the magnitudes of the first voltage value U1 and the second voltage value U2, it should be accurately described as the absolute value of the first voltage value U1 being less than the absolute value of the second voltage value U2.

[0045] (Example 1)

[0046] In this embodiment, the first voltage value U1 is zero, and the second voltage value U2 is the voltage applied directly or indirectly to the developing element 11 by the imaging device. Under the action of the movable element 6, the first conductive element 131 and the second conductive element 132 switch between being electrically connected to each other and being electrically disconnected from each other.

[0047] When the first conductive element 131 and the second conductive element 132 are electrically connected to each other, the developing element 11 contacts the conductive component in the imaging device through the electrical connector 13, so that the developing element 11 actually bears a first voltage value U1 less than the predetermined voltage value U. Specifically, the first voltage value U1 is zero, and the developer carried by the developing element 11 cannot reach the surface of the photosensitive element 21. When the first conductive element 131 and the second conductive element 132 are electrically disconnected from each other, the developing element 11 actually bears a second voltage value U2 not less than the predetermined voltage value U, and the developer carried by the developing element 11 can reach the surface of the photosensitive element 21.

[0048] Obviously, when the processing cartridge 100 is in the developing state, the first conductive element 131 and the second conductive element 132 are electrically disconnected from each other, and when the processing cartridge 100 is in the developing state, the first conductive element 131 and the second conductive element 132 are electrically connected to each other.

[0049] [Event Item]

[0050] The movable component 6 includes a movable part 65, a trigger part 64, a first force receiving part 61, and a second force receiving part 62. Both the first force receiving part 61 and the second force receiving part 62 are connected to the movable part 65. The first force receiving part 61 is used to receive the first force applied by the force applying mechanism 500, and the second force receiving part 62 is used to receive the second force applied by the force applying mechanism 500. The first force and the second force (collectively referred to as force) are in opposite directions. When one of the first force receiving part 61 and the second force receiving part 62 receives the force applied by the force applying mechanism, the trigger part 64 can move relative to the first housing 10 / developing element 11 / photosensitive element 21 along with the movable part 65. At the same time, the trigger part 64 triggers the first end 1321 of the second conductive element to move between the first position and the second position.

[0051] Accordingly, any one of the movable part 65, the first force receiving part 61, and the second force receiving part 62 can be connected to the trigger part 64. In the actual structure, the movable part 65 is configured to rotate around the rotation axis in the directions shown by d1 and d2 (as shown in Figure 3), or it can be configured to reciprocate in a predetermined direction. The specific mode of operation can be selected according to the design requirements and the overall structural arrangement of the processing box 100.

[0052] In one embodiment, the first force receiving part 61 and the second force receiving part 62 are arranged at intervals, forming an active space 63 between them. When the processing box 100 is installed on the imaging device, the force applying mechanism 500 enters the active space 63.

[0053] In one embodiment, the force-applying mechanism 500 has an intermediate position, a first force-applying position, and a second force-applying position, wherein the intermediate position is located between the first force-applying position and the second force-applying position. In the first force-applying position, the force-applying mechanism 500 applies a first force to the first force-receiving part 61, and then the force-applying mechanism 500 returns from the first force-applying position to the intermediate position. In the second force-applying position, the force-applying mechanism 500 applies a second force to the second force-receiving part 62, and then the force-applying mechanism 500 returns from the second force-applying position to the intermediate position.

[0054] In one embodiment, the force-applying mechanism 500 is configured such that after applying a first force to the first force receiving part 61, the force-applying mechanism 500 remains in contact with the first force receiving part 61, and the force-applying mechanism 500 does not return to the intermediate position.

[0055] [Electrical connectors]

[0056] The developing element 11 includes a developing element shaft 111 and a developing layer 112 located radially outside the developing element shaft 111. The developing layer 112 is used to carry the developer. At least a portion of the developing layer 112 is made of a conductive material. The developing element 11 is rotatably disposed in the first cartridge 10 via the developing element shaft 111.

[0057] The first conductive element 131 has a first conductive element first end (first connecting end) 1311 and a first conductive element second end (fixed end) 1312. The first conductive element first end 1311 is used for electrical contact / electrical connection with the developing element 11. Specifically, the first conductive element first end 1311 is in electrical contact with the developing layer 112, or the first conductive element first end 1311 is in electrical contact with the developing element shaft 111. The second conductive element 132 has a second conductive element first end (movable end) 1321 and a second conductive element second end (second connecting end) 1322. The second conductive element first end 1321 is configured to move between a first position and a second position. In the first position, the second conductive element first end 1321 and the first conductive element second end 1312 are disconnected from each other, and the first conductive element 131 and the second conductive element 132 are in a state of mutual electrical disconnection. In the second position, the second conductive element first end 1321 and the first conductive element second end 1312 are in a state of mutual electrical connection.

[0058] In one embodiment, at least a portion of the first conductive element 131 and at least a portion of the second conductive element 132 are both configured to be immovable relative to the second housing 20, as shown in FIG2B. At least a portion of the first conductive element 131 and at least a portion of the second conductive element 132 are fixedly disposed on the end cap body 40. Regardless of whether the first end cap 4 is integrally formed with the second housing 20, when the processing box 100 is assembled, the first end cap 4 is always immovable relative to the second housing 20. Therefore, at least a portion of the first conductive element 131 and at least a portion of the second conductive element 132 are also immovable relative to the second housing 20.

[0059] In one embodiment, at least a portion of the first conductive element 131 and at least a portion of the second conductive element 132 may both be configured to be immovable relative to the first housing 10. Regardless of how the first conductive element 131 and the second conductive element 132 are arranged in the processing housing 100, as long as the first conductive element 131 and the second conductive element 132 can be triggered by the triggering unit 64 to switch between mutual electrical connection and mutual disconnection.

[0060] Support mechanisms in imaging equipment

[0061] As shown in Figure 3, the support mechanism 200 is a support frame installed in the imaging device. The support frame 200 is provided with a support groove 201. When the processing box 100 is installed in the imaging device, it is supported by the support mechanism 47 and enters the support groove 201. The processing box 100 is supported by the support frame 200. The force application mechanism 500 enters the activity space 63 and is located in the middle position.

[0062] In some embodiments, at least the inner wall of the support groove 201 is made of a conductive material, and the second end 1322 of the second conductive element also enters the support groove 201, and the second end 1322 of the second conductive element is also in contact / electrically connected to the inner wall of the support groove 201 (one embodiment of the conductive element). In this way, the second conductive element 132 can be grounded through the support groove 201.

[0063] In some embodiments, at least a portion of the supported mechanism 47 overlaps with the second drive force receiver 32 along the y-direction, a design that reduces vibrations generated when the second drive force receiver 32 rotates.

[0064] In some embodiments, at least a portion of the second conductive element 132 overlaps with the supported mechanism 47 along the y-direction. That is, when the processing cartridge 100 is installed to the imaging device, at least a portion of the second conductive element 132 enters the support groove 201. This design can improve the contact stability between the second conductive element 132 and the conductive component.

[0065] [Operating Process of Voltage Regulator]

[0066] During the operation of the voltage regulating device, in order to more clearly observe the relative positions of the developing element 11 and the photosensitive element 21, the second housing 20 and the first end cap 4 are hidden in Figures 4A-4D.

[0067] When the processing box 100 with the voltage regulation device GD described in this embodiment is installed in the imaging device but the imaging device has not yet been started, the electrical connection between the developing element 11 and the conductive component is disconnected, and the developing element 11 has not yet received power supplied by the imaging device.

[0068] As shown in Figure 4A, during the development process of the processing cartridge 100, the developing element 11 and the photosensitive element 21 approach each other (the figure shows the developing element 11 and the photosensitive element 21 in contact with each other). The first end 1311 of the first conductive element is in electrical contact with the shaft 111 of the developing element, and the second end 1322 of the second conductive element is in electrical contact with the inner wall of the support groove 201. The second end 1312 of the first conductive element and the first end 1321 of the second conductive element are not in contact, that is, the first end 1321 of the second conductive element is located in the first position, and the first conductive element 131 and the second conductive element 132 are in a state of mutual electrical disconnection. The force application mechanism 500 is located in the middle position. The actual voltage value (second voltage value) U2 borne by the developing element 11 is greater than the predetermined voltage value U, and the developer carried by the developing element 11 can reach the surface of the photosensitive element 21.

[0069] After the processing cartridge 100 has finished developing, as shown in Figure 4B, the force application mechanism 500 moves in the +y direction, or in other words, the force application mechanism 500 moves from the middle position to the first force application position. As the force application mechanism 500 applies the first force to the first force receiving part 61, the trigger part 64 moves along the direction shown by d1 as the moving part 65 rotates. During the movement of the trigger part 64, the first end 1321 of the second conductive element is triggered by the trigger part 64 and moves from the first position to the second position. The developing element 11 is grounded through the first conductive element 131 and the second conductive element 132. The voltage value (first voltage value) U1 actually borne by the developing element 11 is zero. Even if the developing element 11 and the photosensitive element 21 are still close to each other, the developer carried by the developing element 11 cannot reach the surface of the photosensitive element 21.

[0070] As shown in Figure 4C, after applying a first force to the first force receiving part 61, the force applying mechanism 500 returns to the middle position along the -y direction from the first force application position. Preferably, the force applying mechanism 500 still does not contact the second force receiving part 62 at this time. In the movable part 6, at least the trigger part 64 is held in the trigger position that triggers the first end 1321 of the second conductive part. For example, a holding member that can hold the trigger part 64 in the trigger position is provided in the processing box 100, or the trigger part 64 is held in the above position by the static friction between the trigger part 64 and the first end 1321 of the second conductive part. In this case, the holding member is at least a part of at least one of the trigger part 64 and the first end 1321 of the second conductive part. Therefore, the trigger position means that the trigger part 64 forces at least a part of the electrical connector 13 to be in the second position. At this time, the first conductive part 131 and the second conductive part 132 are electrically connected, and the voltage value actually borne by the developing member 11 is the first voltage value U1.

[0071] As described above, when the force-applying mechanism 500 is configured such that after a first force is applied to the first force-receiving part 61, the force-applying mechanism 500 remains in contact with the first force-receiving part 61, the retaining member is the force-applying mechanism 500.

[0072] When the processing cartridge 100 needs to be developed again, as shown in FIG4D, the force application mechanism 500 moves in the -y direction, or in other words, the force application mechanism 500 moves from the middle position to the second force application position. As the force application mechanism 500 applies the second force to the second force receiving part 62, the trigger part 64 moves along the moving part 65 in the d2 direction opposite to the direction shown in d1. During the movement of the trigger part 64, the first end 1321 of the second conductive member is no longer triggered by the trigger part 64 and moves from the second position to the first position. That is to say, the state of the holding member in the trigger position is released, and the first conductive member 131 and the second conductive member 132 are in a state of mutual electrical disconnection. The voltage value actually borne by the developing member 11 is the second voltage value U2. Under the action of the electric field force between the developing member 11 and the photosensitive member 21, the developer carried by the developing member 11 can reach the surface of the photosensitive member 21. It can be seen that the movement of the second force receiving part 62 in this embodiment will release the state of the trigger part 64 in the trigger position.

[0073] Similarly, after the second force is applied to the second force receiving part 62, the force applying mechanism 500 returns to the middle position along the +y direction from the second force application position, that is, the force applying mechanism 500 returns to the position shown in FIG4A.

[0074] It should be noted that after the processing cartridge 100 has finished developing, the force application mechanism 500 moves in the +y direction. According to the program set by the imaging device, this movement can be performed immediately after the processing cartridge 100 has finished developing, or it can be performed after a predetermined time. After the force application mechanism 500 applies the first force to the first force receiving part 61, the imaging device can perform either the cleaning step of the photosensitive element 21 or the image calibration step.

[0075] (Example 2)

[0076] Generally, the processing cartridge 100 also includes a powder feeding component 12 (as shown in Figures 6 and 7A) and a powder dispensing blade 14 (as shown in Figure 6) rotatably disposed in the first cartridge body 10. The powder feeding component 12 includes a powder feeding component shaft 121 and a powder feeding layer 122 located radially outside the powder feeding component shaft 121. The powder feeding layer 122 contacts the developing layer 112. Preferably, the powder feeding component shaft 121 is made of a conductive material, and the powder feeding component 12 is rotatably disposed in the first cartridge body 10 via the powder feeding component shaft 121.

[0077] Both the powder feeding component 12 and the powder dispensing blade 14 are in contact with the developing component 11. The powder feeding component 12 is used to supply the developer stored in the first cartridge 10 to the developing component 11, and the powder dispensing blade 14 is used to adjust the thickness of the developer layer carried by the developing component 11. To improve the supply efficiency of the developer and enhance the chargeability of the developer, preferably, at least one of the powder feeding component 12 and the powder dispensing blade 14 is also configured to receive power from the imaging device. In this case, the imaging device will be provided with multiple power output components, which are respectively used to output power to different components in the processing cartridge 100. For example, the imaging device is provided with a first power output component and a second power output component that can output different voltage values. The first power output component is used to output power to the developing component, and the second power output component is used to output power to the powder feeding component and / or the powder dispensing blade. Alternatively, the first power output component is used to output power to the developing component 11 and / or the powder dispensing blade 14, and the second power output component is used to output power to the powder feeding component, etc.

[0078] From the perspective of reducing the structural complexity of the processing cartridge 100, the processing cartridge 100 has been configured such that the developing element 11 and the powder feeding element both receive power from the same power output element. The voltage value output by this power output element may be much greater than a predetermined voltage value U (for example, the voltage value output by the second power output element is much greater than the voltage value output by the first power output element). This makes the voltage value borne by the developing element 11 may be much greater than the predetermined voltage value U. Therefore, the electrical connector 13 in this embodiment also includes a voltage regulator 133 disposed between the developing element 11 and the conductive component. One end of the voltage regulator 133 is in direct or indirect contact with the developing element 11, and the other end is in direct or indirect contact with the conductive component in the imaging device, so that the actual voltage value borne by the developing element 11 is always within a preset range (for example, not exceeding the error of the predetermined voltage value U).

[0079] As shown in Figure 5, one end of the voltage regulator 133 is fixedly mounted on the first conductive element 131, and the other end of the voltage regulator 133 is fixedly mounted on the second conductive element 132. In this way, when the processing cartridge 100 is developed in the imaging device, even if a voltage higher than the predetermined voltage value U is applied to the developing element 11, the actual voltage value borne by the developing element 11 will reach near the predetermined voltage value U. Ultimately, the developer carried by the developing element 11 will not reach the surface of the photosensitive element 21 in excess, and the development quality of the processing cartridge 100 can be maintained in a stable state. Preferably, the voltage regulator 133 can be configured as at least one of a diode, an impedance element, etc.

[0080] Specifically, the electrical connector 13 in this embodiment still has the first conductive element 131 and the second conductive element 132 as described in Embodiment 1. The first conductive element 131 still has a second conductive element 1312, and the second conductive element 132 still has a first conductive element 1321. The first conductive element 1321 is configured to move between a first position and a second position. Under the triggering action of the triggering part 64, the first conductive element 1321 can move from the first position to the second position. In the first position, the first conductive element 1321 and the first conductive element... The second terminal 1312 is disconnected from the electrical connection, and the first conductive element 131 and the second conductive element 132 are in a state of mutual electrical disconnection. However, through the grounded voltage regulator 13, the voltage value (second voltage value) U2 actually borne by the developing element 11 can remain stable. In the second position, the first terminal 1321 of the second conductive element is electrically connected to the second terminal 1312 of the first conductive element, and the first conductive element 131 and the second conductive element 132 are in a state of mutual electrical connection. At this time, no matter how much voltage value the imaging device applies to the developing element 11, the voltage value (first voltage value) U1 actually borne by the developing element 11 is always zero.

[0081] In some embodiments, the voltage output by the power output device for providing power to the developing element 11 is within a preset range. However, due to changes in the material of the developing element 11 or changes in the electrical properties of the developing element 11 caused by the external environment, the voltage value that the developing element 11 can withstand also changes. For example, the voltage value that the developing element 11 can withstand becomes smaller. Correspondingly, the predetermined voltage value U should also be reduced to outside the preset range. In this case, in order to enable the developing element 11 to work stably, or in other words, to keep the developing quality of the processing cartridge 100 stable, the voltage regulator 133 described in this embodiment can also be used.

[0082] According to the inventive concept of this embodiment, the first voltage value U1 can also be between zero and a predetermined voltage value U. After the processing cartridge 100 has finished developing, even if the developing element 11 and the photosensitive element 21 are still close to each other, the electric field force between the developing element 11 and the photosensitive element 21 is not enough to transport the developer carried by the developing element 11 to the surface of the photosensitive element 21.

[0083] (Example 3)

[0084] Based on the inventive concept of the present invention, this embodiment further improves upon the above embodiments.

[0085] As shown in Figure 6, the processing box 100 also includes at least a portion of a power receiving and transmitting component 7 disposed on the non-driving side. The power receiving and transmitting component 7 is used to contact the power output component in the imaging device to receive power and to transmit the received power to at least one of the developing component 11, the powder feeding component 12, and the powder discharging blade 14. Specifically, the power receiving and transmitting component 7 includes a power receiving component 70, a first power transmitting component 71, a second power transmitting component 72, and a third power transmitting component 73. The power receiving component 70 is used to contact the power output component to receive power. The first power transmitting component 71 is electrically connected to the power receiving component 70 and is used to transmit power to the developing component 11. The second power transmitting component 72 is electrically connected to the power receiving component 70 and is used to transmit power to the powder feeding component 12. The third power transmitting component 73 is electrically connected to the power receiving component 70 and is used to transmit power to the powder discharging blade 14.

[0086] In some embodiments, the power receiver 70 contacts the second power output to receive power. In this case, the power receiving and transmitting assembly 7 also includes a voltage drop element 77 (e.g., a resistor). One end of the voltage drop element 77 is used to electrically connect to the first power transmitting element 71 / power receiver 70, and the other end is used to electrically connect to the developing element 11. In this way, even if the voltage value output by the second power output is much greater than the voltage value output by the first power output, the developing element 11 can still receive a suitable voltage through the adjustment of the voltage drop element 77.

[0087] In some embodiments, the power receiving and transmitting assembly 7 further includes a fourth power transmitting element 74, one end of which is in contact with the other end of the voltage drop element 77, and the other end of the fourth power transmitting element 74 (the power supply end of the developing element) 741 is in contact with the developing element 11. This arrangement can improve the installation freedom of the voltage drop element 77.

[0088] In some embodiments, the fourth power transmission element 74 may be omitted, in which case the other end of the voltage drop element 76 will be in direct electrical contact with the developing element 11.

[0089] In some embodiments, the developing element 11 may receive power from the power receiving and transmitting assembly 7 through at least one of the developing element shaft 111 and the developing layer 112, that is, at least one of the developing element shaft 111 and the developing layer 112 is in electrical contact with the power receiving and transmitting assembly 7.

[0090] In some embodiments, the fourth power transmission component 74 also has a power adjustment terminal 742 that is different from the power supply terminal 741 of the developing element. The processing cartridge 100 also includes a conductive pin 22 electrically connected to the photosensitive element 21. When the processing cartridge 100 is installed in the imaging device, the conductive pin 22 is electrically connected to a grounding component (a type of conductive component) in the imaging device. Thus, the photosensitive element 21 is electrically connected to the grounding component through the conductive pin 22. As shown in FIG6, the power receiving and transmitting assembly 7 also includes a fifth power transmission component 75 and a sixth power transmission component 76 connected in sequence. The fifth power transmission component 75 is in electrical contact with the power adjustment terminal 742, and the sixth power transmission component 76 is in electrical contact with the conductive pin 22. The fifth power transmission component 75 and the sixth power transmission component 76 can... Electrical connection can be achieved through direct contact or through a Zener diode 133. Specifically, one end of the Zener diode 133 is in contact with the fifth power transmission element 75, and the other end is in contact with the sixth power transmission element 76. Thus, the voltage actually borne by the developing element 11 can be made more stable. As shown in Figures 7B and 7C, the processing box 100 also includes a second end cover 5 disposed on the non-driving side. The second end cover 5 includes an end cover body 51 and a through hole 52 disposed on the end cover body 51. The conductive pin 22 passes through the through hole 52. In some preferred embodiments, both the Zener diode 133 and the sixth power transmission element 76 are exposed to the outside through the end cover body 51. More preferably, the sixth power transmission element 76 and the end cover body 51 are integrally formed by secondary injection molding.

[0091] In some implementations, the fifth power transmission element 75 is configured as a compression spring, thereby enabling the fourth power transmission element 74 and the Zener diode 133 to maintain a stable electrical connection.

[0092] In some embodiments, at least one of the sixth power transmission element 76 and the fifth power transmission element 75 may be omitted to simplify the structure of the power receiving and transmitting assembly 7.

[0093] In some embodiments, the second power transmission member 72 is in direct contact with the powder feeding member shaft 121, or the second power transmission member 72 is in contact with a conductive support member (e.g., a copper sleeve mounted on the second end cap 5) for supporting the powder feeding member shaft 121, so that the powder feeding member 12 receives power from the power receiving and transmission assembly 7.

[0094] In some embodiments, the second end 1322 of the second conductive element can also be electrically connected to the conductive pin 22, thereby realizing the electrical connection between the voltage regulating device GD and the conductive component.

[0095] As shown in Figure 6, more specifically, the developing element 11 has a first developing element end 11a located on the driving side and a second developing element end 11b located on the non-driving side. The power receiving and transmitting assembly 7 is in contact with the second developing element end 11b, so that the power output by the power output unit in the imaging device is input to the developing element 11 at the second developing element end 11b, and then output from the developing element 11 at the first developing element end 11a. The voltage regulating device GD is located between the first developing element end 11a and the conductive component, and is used to regulate the connection and disconnection of the electrical connection between the first developing element end 11a and the conductive component. In this way, the power output by the power output unit to the developing element 11 can be adjusted according to design requirements. That is to say, the voltage output by the power output unit to the power receiving unit 70 can be exactly equal to the voltage required for developing by the developing element 11, higher than the voltage required for developing by the developing element 11, or lower than the voltage required for developing by the developing element 11. Thus, the applicability of the processing cartridge 100 can be improved.

[0096] In some embodiments, the power receiving and transmitting assembly 7 can also supply power output from the power output unit to the developing element 11 by contacting the first end 11a of the developing element. In this case, one end of the voltage regulating device GD can contact the second end 11b of the developing element, while the other end remains electrically connected to the conductive component. The processing box 100 with this configuration can still produce the aforementioned beneficial effects. It can be seen that the power receiving and transmitting assembly 7 can supply power output from the power output unit to the developing element 11 in either the form of contact between the power receiving and transmitting assembly 7 and the first end 11a of the developing element or the form of contact between the power receiving and transmitting assembly 7 and the second end 11b of the developing element.

[0097] In some embodiments, the power receiving and transmitting component 7 can also supply power output from the power output component to the developing layer 112 by contacting the developing layer 112.

[0098] The voltage regulation device GD involved in this embodiment is described below.

[0099] As shown in Figure 7A, the processing box 100 also includes a bracket 16 and a cover 17. The bracket 16 is fixedly connected to the first box body 10. The first driving force receiving member 31 is rotatably supported by the first box body 10 or the bracket 16 and exposed to the outside from the cover 17. Further, the processing box 100 also includes at least one driving force output gear coaxially arranged with the first driving force receiving member 31, at least one developing driving member 113 coaxially arranged with the developing member 11, and at least one powder feeding gear 123 coaxially arranged with the powder feeding member 12. The driving force output gear is used to transmit the driving force received by the first driving force receiving member 31 to the developing gear and the powder feeding gear, so that the developing member 11 and the powder feeding member 12 are driven. Therefore, the gear set includes the at least one driving force output gear, the at least one developing gear, and the at least one powder feeding gear.

[0100] Along the x-direction, both the developing element 11 and the powder feeding element 12 are supported by the bracket 16, and at least a portion of the gear set is located between the bracket 16 and the cover 17.

[0101] According to the inventive concept of the present invention, the movable member 6 can be installed on at least one of the cover 17, the bracket 16 and the first housing 10. The following description takes the movable member 6 being installed on the cover 17 as an example.

[0102] As shown in Figure 7A, the cover 17 includes a cover body 171, a through hole 172, and a movable part mounting portion 173. The through hole 172 is provided on the cover body 171 to allow the first driving force receiving member 31 to be exposed. The movable part mounting portion 173 is connected to the cover body 171. As shown in Figures 8A, 8B, 8C, 9, 10A, 10B, and 11, the movable member 6 is movably installed in the movable part mounting portion 173. The movable member 6 also includes the aforementioned first force receiving portion 61 and second force receiving portion 63. The receiving part 62 and the triggering part 64 also include a first reset member 66 and a second reset member 67. The first reset member 66 is used to force the first force receiving part 61 to move toward a position that can abut against the force applying mechanism 500 in the first force applying position. The second reset member 67 is used to force the second force receiving part 62 to move toward a position that can abut against the force applying mechanism 500 in the second force applying position. The active space 63 is formed between the first force receiving part 61 and the second force receiving part 62.

[0103] The movable part mounting part 173 includes a first side plate 173g, a partition 173c, and a second side plate 173h arranged sequentially at intervals along the x-direction. At least one of the first side plate 173g, the partition 173c, and the second side plate 173h is connected to the cover body 171. A first mounting space 173a is formed between the first side plate 173g and the partition 173c, and a second mounting space 173b is formed between the second side plate 173h and the partition 173c. A first force receiving part 61 is movably mounted in the first mounting space 173a, and a second force receiving part 62 is movably mounted in the second mounting space 173b. One end of the first reset member 66 contacts the first force receiving part 61, and the other end contacts the first side plate 173g. One end of the second reset member 67 contacts the second force receiving part 62, and the other end contacts the partition 173c.

[0104] It should be understood that the other end of the first reset member 66 can also contact other components of the processing box 100. For example, the other end of the first reset member 66 can contact any other part of the movable part mounting part 173, other parts of the cover 17, the bracket 16, the first box body 10, the second box body 20, etc., as long as the first reset member 66 can achieve the above purpose. Similarly, the other end of the second reset member 67 can contact various parts, as long as the second reset member 67 can achieve the above purpose.

[0105] The first force receiving part 61 includes a first body 611 and a first abutting part 612 and a first abutting part 613 disposed on the first body 611. The first abutting part 612 protrudes from the first body 611 or is formed as part of the first body 611 for abutting against the force applying mechanism 500 to receive the first force. The first abutting part 613 protrudes from the first body 611 for forcing the second force receiving part 62 to move, thereby causing the second force receiving part 62 to no longer remain in the triggered position. Further, the first force receiving part 61 also includes a first limiting part 614 connected to the first body 611, which limits the range of movement of the first force receiving part 61.

[0106] The second force receiving part 62 includes a second body 621 and a second abutting part 622 and a second actuating part 623 disposed on the second body 621. The second abutting part 622 protrudes from the second body 621 or is formed as part of the second body 621 for abutting against the force applying mechanism 500 to receive the second force. The second actuating part 623 is configured to move between an active position and a restricted position relative to the second body 611. When the second abutting part 622 receives the second force, the second actuating part 623 moves from the active position to the restricted position. The second actuating part 623 can be integrally formed with the second body 621 or separately formed. Preferably, the second actuating part 623 is integrally formed with the second body 621. In this case, the second actuating part 623 is formed as a cantilever connected to the second body 621.

[0107] Furthermore, the second force receiving part 62 also includes the trigger part 64. The trigger part 64 can be integrally formed with the second body 621 or separately formed. Preferably, the trigger part 64 is integrally formed with the second body 621. In this case, a part of the second body 621 is formed as the trigger part 64.

[0108] Furthermore, the second force receiving unit 62 also includes a second limiting unit 624 connected to the second main body 621, the second limiting unit 624 being used to limit the movement range of the second force receiving unit 62.

[0109] In some embodiments, the first action part 613 has a first action surface 613a, and the second action part 623 has a second action surface 623a for cooperating with the first action surface 613a. Preferably, at least one of the first action surface 613a and the second action surface 623a is set as an inclined surface, thereby realizing the transmission of force between the first action part 613 and the second action part 623, thereby causing the second action part 623 to move from the restricted position to the active position.

[0110] In some embodiments, the second actuating part 623 also has a restricted surface 623b. Correspondingly, the movable part mounting part 173 / partition 173c is provided with a retaining part 173d for abutting against the second actuating part 623. When the second actuating part 623 reaches the restricted position, the restricted surface 623b abuts against the restricting surface 173e on the retaining part 173d. In this way, the second force receiving part 62 / triggering part 64 can be kept in a state where the second end 1312 of the push electrical connector 13 / first conductive member is away from the first end 1321 of the second conductive member. Therefore, the retaining member in this embodiment includes the second actuating part 623 and the retaining part 173d together, or includes the restricted surface 623d and the restricting surface 173e.

[0111] In some embodiments, the first mounting space 173a extends in a direction inclined relative to the y direction. Specifically, along the +y direction, or along the direction in which the first force receiving part 61 is pushed by the first force, or along the direction in which the second action part 623 moves from the restricted position to the active position, the first mounting space 173a gradually moves away from the second side plate 173h in the x direction, or the distance between the first mounting space 173a and the second side plate 173h in the x direction gradually increases. This design is beneficial for providing more room for the second action part 623 to move, so that the second action part 623 can move more smoothly.

[0112] As shown in Figure 12A, before the processing cartridge 100 is installed, or when the processing cartridge 100 is being developed in the imaging device, the trigger part 64 pushes the electrical connector 13 / the second end 1312 of the first conductive member, causing the second end 1312 of the first conductive member to disconnect from the second conductive member 132, and the developing member 11 to disconnect from the conductive member. The actual voltage value that the developing agent 11 bears is the second voltage value U2. At the same time, the restricted surface 623b abuts against the restricted surface 173e, and the second reset member 67 undergoes elastic deformation. In this way, the trigger part 64 can be held in the state of pushing the electrical connector 13 / the second end 1312 of the first conductive member, and the second action part 623 is in the restricted position.

[0113] When the processing cartridge 100 does not need to be developed, the force application mechanism 500 enters the active space 63 and applies a first force to the first force receiving part 61 / first abutted part 612 along the +y direction. This causes the first force receiving part 61 to move in the first mounting space 173a in the +y direction. The first reset member 66 undergoes elastic deformation, and the first action surface 613a abuts against the second action surface 623a, forcing the second action part 623 to move relative to the second body 611 from the restricted position to the active position. At this time, the restricted surface 623b no longer abuts against the restricted surface 173e, the second reset member 67 releases its elastic force, and the second force receiving part 62 / trigger part 64 moves in the +y direction. The second end 1312 of the first conductive member approaches the second conductive member 132 under its own elastic force. It can be seen that the movement of the first force receiving part 61 in this embodiment will cause the state of the trigger part 64 / holding member held in the trigger position to be released.

[0114] As shown in Figure 12B, the second end 1312 of the first conductive element abuts against the first end 1321 of the second conductive element 132. Since the second end 1322 of the second conductive element is electrically connected to the conductive component, the electrical connection between the developing element 11 and the conductive component is established, and the voltage value actually borne by the developing element 11 is the first voltage value U1. When the processing cartridge 100 needs to perform development again, the force application mechanism 500 moves in the -y direction and applies a second force to the second force receiving part 62 / the second abutted part 622. As the second force receiving part 62 moves in the -y direction, the trigger part 64 pushes the second end 1312 of the first conductive element to disengage from the second conductive element 132 again. Simultaneously, the second action part 623 moves from the active position to the restricted position relative to the second body 621, that is, the first action surface 613a and the second action surface 623a abut against each other again. Finally, the trigger part 64 can be held in the state where the second end 1312 of the first conductive member is far away from the first end 1321 of the second conductive member, and the electrical connection between the developing member 11 and the conductive member is disconnected again. Therefore, the trigger position in this embodiment refers to the trigger part 64 forcing at least a part of the electrical connection 13 to be in the first position. At this time, the first conductive member 131 and the second conductive member 132 are disconnected, and the voltage value actually borne by the developing member 11 is the second voltage value U2.

[0115] As described above, in Embodiment 1, the trigger position refers to the trigger part 64 forcing at least a portion of the electrical connector 13 to be in the second position. At this time, the first conductive member 131 and the second conductive member 132 are electrically connected, and the voltage value actually borne by the developing member 11 is the first voltage value U1. It can be seen that, according to the structure of the voltage regulating device, the trigger position can correspond to either the first position or the second position.

[0116] (Example 4)

[0117] Based on the imaging principle of the processing cartridge 100, when the processing cartridge 100 is not developing, and the developing element 11 and the photosensitive element 21 are not separated from each other, this embodiment provides another technical solution to prevent the developer carried by the developing element 11 from reaching the surface of the photosensitive element 21. In general, this technical solution reduces the rotation speed of the developing element 11. When the processing cartridge 100 is not developing, the rotation speed of the developing element 11 is set to V1, and when the processing cartridge 100 is developing, the rotation speed of the developing element 11 is set to V2, satisfying: V1 < V2.

[0118] As shown in Figure 13, the processing box 100 also includes a control element 113c, a developing gear 113e, and an idler gear 113a. Both the developing gear 113e and the idler gear 113a are mounted on the developing element shaft 111. The idler gear 113a is used to mesh with the driving force output gear 311 to receive the driving force from the imaging device / first driving force receiver 31. However, the idler gear 113a can idle relative to the developing element shaft 111. That is, the idler gear 113a will not drive the developing element shaft 111, or in other words, the rotation of the idler gear 113a will not cause the developing element shaft 111 to rotate. The developing gear 113e is configured to drive the developing element shaft 111. That is, the rotation of the developing gear 113e will cause the developing element shaft 111 to rotate together. For example, the developing gear 113e and the developing element shaft 111 are engaged through a D-shaped joint.

[0119] Control element 113c controls at least a portion of the developing gear 113e and / or at least a portion of the idler gear 113a, enabling at least a portion of the developing gear 113e and / or at least a portion of the idler gear 113a to reciprocate along the x-direction between an engaged position and a disengaged position. In the engaged position, the developing gear 113e engages with the idler gear 113a, receiving driving force from the idler gear 113a through a driving force receiving part 113b integrally or separately formed with it, allowing the developing element 11 to be driven and rotate at a rotational speed V2. In the disengaged position, the developing gear 113e disengages from the idler gear 13a, but engages with the drive part 313, thus allowing the developing element 11 to still be driven and rotate at a rotational speed V1, where V1 is not equal to V2. The assembly also includes the idler gear 113a and the drive force receiving unit 113b. The control unit 113c, the developing gear 113e, and the idler gear 113a are formed as at least part of the reduction device 113 in the processing cartridge 100. In this embodiment, the reduction device 113 controls the rotation speed of the developing element 11 by controlling whether the developing gear 113e can continuously receive the drive force from the imaging device / drive force receiving assembly 3 / first drive force receiving unit 31. When the developing gear 113 can continuously receive the drive force, the rotation speed of the developing element 11 is V2, and V2 is a constant value. When the developing gear 113 cannot continuously receive the drive force, the rotation speed of the developing element 11 is V1. Since the rotation speed of the developing element 11 varies, V1 should be understood as the average rotation speed of the developing element 11.

[0120] The following explanation uses the example of the controller 113c controlling the reciprocating motion of the developing gear 113e in the x-direction.

[0121] In some embodiments, the processing cartridge 100 further includes a driven unit 313 capable of rotating with the driving force output gear 311. When the developing gear 113e is in the disengaged position, the driven unit 313 drives the developing gear 113e, thereby driving the developing element 11 to rotate, so that the developing element 11 has a rotational speed V1. When the developing gear 113e is in the engaged position, the developing gear 113e cannot be driven by the driven unit 313. At this time, the developing gear 113e is driven by the idler gear 113e through the driving force receiving unit 113b. 13a receives the driving force. Since the idler gear 113a and the driving force output gear 311 are always meshed, the developing element 11 / developing gear 113e can continuously receive the driving force. The developing element 11 has a constant rotational speed V2. The driving force output gear 311 can be referred to as the main driving unit. The main driving unit is used to drive the developing gear 113e / developing element 11 to rotate continuously at a rotational speed V2. The driven unit is used to drive the developing gear 113e / developing element 11 to rotate intermittently (or discontinuously) at a rotational speed V1.

[0122] In some embodiments, the drive unit 313 and the drive force output gear 311 are coaxially arranged. Preferably, the teeth of the drive unit 313 and the drive force output gear 311 are both arranged on the same cylinder.

[0123] In some embodiments, the drive unit 313 and the drive force output gear 311 may be arranged on different axes, as long as the drive unit 313 can be driven by the drive force output gear 311.

[0124] In some embodiments, the drive unit 313 is configured as a protrusion capable of meshing with the teeth of the developing gear 113e. When the developing gear 113e is in the disengaged position, the drive unit 313 drives the developing gear 113e once for each revolution, thereby causing the developing element 11 / developing gear 113e to be driven to rotate by the drive unit 313 once in one rotation cycle of the drive unit 313. This can be either the developing element 11 / developing gear 113e being driven to rotate by the drive unit 313 first, then stopping until the developing element 11 / developing gear 113e is driven to rotate by the drive unit 313 again, or the developing element 11 / developing gear 113e being driven to rotate by the drive unit 313 first, then the rotation speed gradually decreasing, and the developing element 11 / developing gear 113e still being rotated when it is driven to rotate by the drive unit 313 again. Overall, when the developing gear 113e is in the disengaged position, the average rotation degree of the developing element 11 is V1.

[0125] In some embodiments, the drive unit 313 may also have a plurality of protrusions spaced apart along the circumferential direction of the first drive force receiving member 31 / the circumferential direction of the drive force output gear 311. The minimum distance between two adjacent protrusions is greater than the tooth thickness of the developing gear 113e. In this way, when the developing gear 113e is in the disengaged position, with one of the protrusions as a reference, the developing gear 113e can be driven by the plurality of protrusions in one rotation cycle of that protrusion. Finally, the developing member 11 will form an intermittent rotational motion. Similarly, the average rotational speed of the developing member 11 is still V1.

[0126] In some embodiments, the control member 113c is sleeved on the developing gear 113e, thereby allowing the developing gear 113e to rotate relative to the control member 113c. The control member 113c can push the developing gear 113e to move in the x-direction. When the developing gear 113e is integrally formed with the driving force receiving part 113b, the control member 113c can also be regarded as being sleeved on the driving force receiving part 113b, and the control member 113c controls the driving force receiving part 113b to move between the engaged position and the disengaged position.

[0127] In some embodiments, the deceleration device 113 further includes a pushing member 113d, which is used to push the developing gear 113e toward the engagement position. In practice, the pushing member 113d can be an elastic member that abuts against the control member 113c / developing gear 113e, or it can be a magnetic member that can generate magnetic force.

[0128] In some embodiments, the pusher 113d can also be used to push the developing gear 113e toward the disengagement position.

[0129] In some embodiments, the control element 113c is also directly or indirectly connected to the voltage control device GD / first force receiving unit 61, so that the control element 113c can be controlled by the voltage control device GD / first force receiving unit 61. When the voltage control device GD / first force receiving unit 61 receives the first force, the voltage control device GD / first force receiving unit 61 controls the control element 113c / developing gear 113e to move from the engaged position to the disengaged position. At the same time, the pushing member 113d generates a pushing force. When the voltage control device GD / first force receiving unit 61 no longer receives the first force, under the action of the pushing force released by the pushing member 113d, the control element 113c controls the control element 113c / developing gear 113e to return from the disengaged position to the engaged position.

[0130] Specifically, the control member 113c is provided with adjacently arranged grooves 113c1 and squeezed portions 113c2, and the first force receiving portion 61 is provided with a protrusion 615 connected to the first body 611. The protrusion 615 has a squeezing portion 615a that can cooperate with the squeezed portion 113c2. At least one of the squeezed portion 113c2 and the squeezing portion 615a is provided as an inclined surface. Through the cooperation of the squeezed portion 113c2 and the squeezing portion 615a, the first force can be transmitted to the control member 113c, thereby allowing the control member 113c / developing gear 113e to move from the engaged position to the disengaged position.

[0131] As shown in Figure 14A, before the first force receiving part 61 / the first abutted part 612 receives the first force, the protrusion 615 is located in the groove 113c1, the developing gear 113e is located in the engagement position, and the driving force output by the imaging device is transmitted to the developing element 11 in sequence through the first driving force receiving part 31, the driving force output gear 311, the idle gear 113a, the driving force receiving part 113b and the developing gear 113e.

[0132] As shown in Figure 14B, when the force-applying mechanism 500 applies a first force to the first force-receiving part 61 / the first abutted part 612, the first force-receiving part 61 begins to move relative to the control member 113c. Through the cooperation of the pressed part 113c2 and the pressing part 615a, the first force is transmitted to the control member 113c. Then, the control member 113c drives the developing gear 113e to move from the engaged position to the disengaged position, and the pushing member 113d generates a pushing force. When the first force-receiving part 61 resets, the protrusion 615 returns to the groove 113c1, the pushing member 113d releases the pushing force, and the developing gear 113e returns from the disengaged position to the engaged position.

[0133] In some embodiments, the developing gear 113e may be replaced by other components that can be driven from the drive unit 313, such as a ratchet, belt, friction wheel, etc.

[0134] In some implementations, the control element 113c can also be directly controlled by the force application mechanism 500.

[0135] (Example 5)

[0136] The similarities with Embodiment 4 will not be repeated here. The differences between this embodiment and Embodiment 4 will now be described with reference to Figures 7 and 15.

[0137] As shown in Figure 7, the idler gear 113a in this embodiment includes a first idler gear 113a1 and a second idler gear 113a2 formed separately. Therefore, the first idler gear 113a1, the second idler gear 113a2 and the driving force receiving part 113b are all coaxially arranged on the developing element shaft 111. The first idler gear 113a1 and the second idler gear 113a2 both idle relative to the developing element shaft and cannot drive the developing element shaft 111. The driving force receiving part 113b can drive the developing element shaft 111.

[0138] The processing box 100 also includes a driving force output gear 312 coaxially disposed with the first driving force receiver 31. Hereinafter, the driving force output gear 311 is referred to as the first driving force output gear, and the driving force output gear 312 is referred to as the second driving force output gear. Therefore, when the first driving force receiver 31 receives the driving force of the imaging device and starts to rotate, the first driving force output gear 311 and the second driving force output gear 312 can also be driven to rotate. The second driving force output gear 312 can also be regarded as the slave driving unit in this embodiment.

[0139] Preferably, the first driving force receiving member 31, the first driving force output gear 311, and the second driving force output gear 312 are integrally formed and can rotate together around a common rotation axis L1.

[0140] Furthermore, the powder feeding gear 123 includes a first powder feeding gear 123a and a second powder feeding gear 123b coaxially arranged with the powder feeding member shaft 121. The first idler gear 113a1 is used to mesh with the first driving force output gear 311, the first powder feeding gear 123a is used to mesh with the second driving force output gear 312, and the second powder feeding gear 123b is used to mesh with the second idler gear 113a2. When the first driving force receiving member 31 rotates, at least one of the first powder feeding gear 123a and the second powder feeding gear 123b drives the powder feeding member shaft 121 to rotate. Finally, the powder feeding member 12 can be driven to rotate.

[0141] In some embodiments, a gear may be added between two adjacent gears, or at least one of the gears may be removed, depending on the rotation direction requirements of the developing element 11 and the powder feeding element 12.

[0142] In some embodiments, the first driving force output gear 311, the second driving force output gear 312, and the first driving force receiving member 31 may be arranged on different axes, as long as the first driving force output gear 311 and the second driving force output gear 312 can receive the driving force from the first driving force receiving member 31.

[0143] Along the x-direction, the driving force receiving part 113b is located between the first idler gear 113a1 and the second idler gear 113a2, and the driving force receiving part 113b is engaged with the developing element shaft 111 through a structure such as a D-shaped opening. That is, the driving force receiving part 113b can drive the developing element 11 to rotate. Therefore, the control member 113c can be sleeved on the driving force receiving part 113b, and the control member 113c controls the movement of the driving force receiving part 113b between the engaged position and the disengaged position. In the engaged position, the processing cartridge 100 performs development, and the driving force receiving part 113b is engaged with the first idler gear 113a1. The driving force received by the first driving force receiving part 31 from the imaging device passes sequentially through the first driving force output gear 311, the first idler gear 113a1, and the driving force receiving part 113b. The force is transferred to the developing element 11. Finally, the developing element 11 rotates at a rotational speed V2. In the disengaged position, the processing cartridge 100 does not perform development. The driving force receiving unit 113b engages with the second idler gear 113a2. The driving force received by the first driving force receiving unit 31 from the imaging device is sequentially transferred to the developing element through the second driving force output gear 312, the second powder feeding gear 123b, the second idler gear 113a2, and the driving force receiving unit 113b. Finally, the developing element 11 rotates at a rotational speed V1. In practice, the rotational speed V1 of the developing element 11 can be adjusted to be less than V2 by adjusting the gear parameters of the second driving force output gear 312, the second powder feeding gear 123b, and the second idler gear 113a2, and / or by adjusting the shape or structure of the driving force receiving unit 113b and the control unit 113c.

[0144] In this embodiment, both the first idler gear 113a1 and the second idler gear 113a2 can continuously receive the driving force from the first driving force receiving member 31. Therefore, whether the driving force receiving part 113b is engaged with the first idler gear 113a1 or the second idler gear 113a2, the developing member 11 can rotate at a constant rotational speed. That is to say, the rotational speeds V1 and V2 in this embodiment are both constant values, but V1 is less than V2.

[0145] Alternatively, the deceleration device 113 in this embodiment may also be equipped with the aforementioned pushing member 113d to push the driving force receiving part 113b toward the first idle gear 113a1.

[0146] (Example 6)

[0147] As shown in Figure 16, unlike Embodiment 5, this embodiment has one idler gear 113a and one powder feeding gear 123. The idler gear 113a and the driving force receiving unit 113b are coaxially mounted on the developing element shaft 111. The idler gear 113a cannot drive the developing element shaft 111, while the driving force receiving unit 113b can drive the developing element shaft 111. The idler gear 113a meshes with the first driving force output gear 311, and the powder feeding gear 123 meshes with the second driving force output gear 312. Similarly, the control element 113c is sleeved on the driving force receiving unit 113b, and the control element 113c can control the driving force receiving unit 113b. 13b moves between the engaged position and the disengaged position. In the engaged position, the processing cartridge 100 performs development, and the driving force receiving part 113b engages with the idle gear 113a. At this time, the driving force received by the first driving force receiving part 31 is transmitted to the developing element 11 in sequence through the first driving force output gear 311, the idle gear 113a, and the driving force receiving part 113b. The developing element 11 has a rotational speed V2. In the disengaged position, the processing cartridge 100 does not perform development, the driving force receiving part 113b disengages from the idle gear 113a, and the developing element 11 cannot receive driving force and remains stationary. At this time, the rotational speed V1 of the developing element 11 is zero.

[0148] Similarly, the deceleration device 113 in this embodiment can also be equipped with the aforementioned pushing member 113d to push the driving force receiving part 113b toward the idle gear 113a.

[0149] In summary, the developing element 11 can be driven to rotate by the developing gear 113e or directly by the driving force receiving part 113b. Regardless of whether the developing gear 113e and the driving force receiving part 113b are integrally formed, they can be regarded as one embodiment of the developing driving element. The developing driving element is used to receive the driving force from the first driving force receiving part 31 / driving force output gear 311 and rotate continuously, thereby enabling the developing element 11 to rotate continuously at a constant rotational speed V2. That is, at the engagement position, the rotational speed V2 of the developing element 11 always remains constant.

[0150] In the disengaged position, the developing element 11 can be driven intermittently, continuously, or remain stationary. When the developing element is driven intermittently, the rotational speed V1 should be an average speed. In any case, as long as the rotational speed V1 of the developing element 11 is less than the rotational speed V2, it is acceptable. Therefore, in the disengaged position, the rotational speed V1 of the developing element 11 can remain constant, gradually slow down or speed up, or remain zero. [Beneficial Effects]

[0151] 1. In the processing cartridge 100 of the present invention, the developing element 11 and the photosensitive element 21 are always kept close to each other. That is, when the processing cartridge 100 does not need to perform development, the developing element 11 and the photosensitive element 21 do not need to be separated from each other. Instead, the voltage adjustment device GD makes the actual voltage value (first voltage value) U1 borne by the developing element 11 less than the predetermined voltage value U, so that the developer carried by the developing element 11 cannot reach the surface of the photosensitive element 21.

[0152] 2. As mentioned in point 1, the developing element 11 and the photosensitive element 21 are always kept close to each other, which simplifies the structure of the processing cartridge 100.

[0153] 3. Continuing as described in point 1, the first box 10 and the second box 20 do not need to move relative to each other, and the wear resistance requirements of the materials used to manufacture the first box 10 and the second box 20 can also be reduced.

[0154] 4. Generally, the processing box 100 is provided with a power receiver on the non-drive side for contacting the power output unit (including the first power output unit / developer power output unit and the second power output unit / powder feeder power output unit) to receive power. Along the x direction, the movable member 6 is provided on the drive side, so that the movement of the movable member 6 will not interfere with the contact between the power receiver and the power output unit.

[0155] 5. According to the inventive concept of the present invention, the second conductive element 132 can also be disposed on the non-driving side, or disposed at any position between the driving side and the non-driving side, as long as the second end 1322 of the second conductive element can be grounded by contacting the conductive component in the imaging device.

[0156] 6. The separation mechanism originally used to receive the first force to force the first box 10 and the second box 20 to move relative to each other can be omitted. The movable member 6 in this invention is configured to move the first end 1321 of the second conductive member between the first position and the second position by receiving the first force and the second force. That is, in the processing box 100 involved in this embodiment, the movable member 6 can be set at the position of the separation mechanism, thereby making full use of the spatial layout of the processing box 100 and reducing the structural complexity of the processing box 100.

[0157] 7. The above focuses on how the movable element 6 / trigger part 64 forces the first conductive element 131 and the second conductive element 132 to switch between mutually electrically connected and mutually electrically disconnected states, thereby realizing the switching of the electrical connection between the developing element 11 and the conductive component between connected and disconnected states. However, the movable element 6 / trigger part 64 can also be configured to force the first conductive element 131 and the developing element 11 to switch between mutually electrically connected and mutually electrically disconnected states, or the movable element 6 / trigger part 64 can also be configured to force the second conductive element 132 and the conductive component to switch between mutually electrically connected and mutually electrically disconnected states; it can be seen that the voltage regulating device GD / movable element 64... The actuator 6 / trigger 64, by receiving the force applied by the force application mechanism 500, can switch the electrical connection between the developing element 11 and the conductive component between disconnection and connection. Specifically, when the voltage regulating device GD receives the force applied by the force application mechanism 500, it switches the electrical connection between the developing element 11 and the conductive component between a state of mutual electrical connection and a state of mutual electrical disconnection by switching between the voltage regulating device GD / electrical connector 13, or between the voltage regulating device GD / electrical connector 13 and the developing element 11, or between the voltage regulating device GD / electrical connector 11 and the conductive component.

[0158] In addition, the triggering unit 64 can trigger not only the first end 1321 of the second conductive member, but also the second end 1312 of the first conductive member, causing at least a portion of the electrical connector 13 to move between the first position and the second position. In the first position, the developing member 11 and the conductive member are electrically disconnected, and the voltage actually borne by the developing member 11 is the second voltage value U2. In the second position, the developing member 11 and the conductive member are electrically connected, and the voltage actually borne by the developing member 11 is the first voltage value U1. It can be seen that the design freedom of the processing cartridge 100 involved in the present invention can be improved.

[0159] 8. As described above, the control member 113c can be controlled by the first force receiving unit 61, thereby controlling the development drive member to move between the engagement position and the disengagement position. When the first force receiving unit 61 receives the first force, the control member 113c controls the development drive member to move from the engagement position to the disengagement position. The first force enables the electrical connection between the development member 11 and the conductive component in the imaging device to be established. The voltage value U1 actually borne by the development member 11 is less than U2, where U2 is the voltage value actually borne by the development member 11 when the electrical connection between the development member 11 and the conductive component is broken. It can be seen that in the processing cartridge 100 of the present invention, the first force not only reduces the electric field force between the development member 11 and the photosensitive element 21, but also reduces the rotational speed of the development member 11. Finally, when the processing cartridge 100 is not developing, even if the development member 11 and the photosensitive element 21 still remain in contact with each other / close to each other, the developer carried by the development member 11 will be less likely to reach the surface of the photosensitive element 21.

[0160] 9. When the rotational speed V1 of the developing element 11 is greater than zero, when the processing cartridge 100 needs to be developed again, the developing element 11 can recover to the rotational speed V2 more quickly, thereby reducing the response time of the developing element 11 and reducing the wear of the developing element 11.

Claims

1. A processing box, detachably installed in an imaging device equipped with conductive components, a power output component, and a force application mechanism, characterized in that, The processing cartridge comprises: A first unit comprising a first cartridge body and a developing member rotatably arranged in the first cartridge body, an extending direction of a rotation axis of the developing member being an x direction; A second unit comprising a second cartridge body and a photosensitive member rotatably arranged in the second cartridge body, the developing member being configured to supply a developer stored in the first cartridge body to the photosensitive member, and the developing member and the photosensitive member being kept in a state of being close to each other at all times; A driving force receiving assembly configured to receive a driving force from the image forming apparatus to drive the developing member and / or the photosensitive member to rotate, the driving force receiving assembly being arranged on a driving side in the x direction, and a non-driving side opposite to the driving side; A voltage adjusting device having one end configured to be electrically connected to the developing member and the other end configured to be electrically connected to the conductive member, at least a part of the voltage adjusting device being arranged on the same side as the driving force receiving assembly, the voltage adjusting device being configured to receive an acting force applied by the force applying mechanism to switch the developing member and the conductive member between a state of being in electrical communication and a state of being in electrical disconnection; A power receiving and transferring assembly arranged at least in part on the non-driving side, configured to be in contact with a power output member to receive power and transfer the received power to the developing member.

2. The process cartridge according to claim 1, wherein, When the voltage adjusting device receives the acting force applied by the force applying mechanism, the voltage adjusting device, or the voltage adjusting device and the developing member, or the voltage adjusting device and the conductive member, is switched between the state of being in electrical communication and the state of being in electrical disconnection.

3. The process cartridge of claim 1, wherein, When the electrical connection between the developing member and the conductive member is in communication, an actual voltage value borne by the developing member is a first voltage value U1, and when the electrical connection between the developing member and the conductive member is disconnected, the actual voltage value borne by the developing member is a second voltage value U2, wherein an absolute value of the first voltage value U1 is smaller than an absolute value of the second voltage value U2.

4. The processing box according to claim 3, characterized in that, The voltage adjusting device comprises a movable member and an electrical connection member, the movable member being configured to force the electrical connection member to switch between the state of being in electrical communication and the state of being in electrical disconnection; the movable member comprises a first acting force receiving portion and a second acting force receiving portion arranged at intervals, and an activity space for allowing the force applying mechanism to enter is formed between the first acting force receiving portion and the second acting force receiving portion; The first acting force receiving portion is configured to receive a first acting force applied by the force applying mechanism, and the second acting force receiving portion is configured to receive a second acting force applied by the force applying mechanism, the direction of the first acting force being opposite to the direction of the second acting force.

5. The process cartridge of claim 4 wherein, The movable member further comprises a trigger portion connected to any one of the first acting force receiving portion and the second acting force receiving portion, the trigger portion being configured to trigger at least a part of the electrical connection member to move between a first position and a second position; In the first position, the actual voltage value borne by the developing member is the second voltage value U2; In the second position, the actual voltage value borne by the developing member is the first voltage value U1.

6. The process cartridge of claim 5 wherein, The electrical connection member comprises a first conductive member and a second conductive member, the first conductive member having a first conductive member first end and a first conductive member second end, and the second conductive member having a second conductive member first end and a second conductive member second end; The first end of the first conductive member is configured to be in electrical contact with the developing member, and the first end of the second conductive member is configured to be in contact with the conductive part. One of the second end of the first conductive member and the second end of the second conductive member is configured to be triggered by the trigger part to move between the first position and the second position.

7. The process cartridge of claim 6 wherein, The process cartridge further comprises a supporting mechanism, and the driving force receiving assembly comprises a first driving force receiving member configured to provide a driving force for the developing member and a second driving force receiving member configured to provide a driving force for the photosensitive member. The imaging device is provided with a supporting groove, and when the process cartridge is installed in the imaging device, the supporting mechanism and the second connecting end both enter the supporting groove. In the z direction, at least a portion of the supporting mechanism overlaps the second driving force receiving member.

8. The process cartridge of claim 7 wherein, In the z direction, at least a portion of the second conductive member overlaps the supporting mechanism.

9. The process cartridge of claim 6 wherein, The process cartridge further comprises a retaining member configured to retain the trigger part in a triggered position, the triggered position being a position in which the trigger part forces at least a portion of the electrical connecting member to be in the first position or the second position.

10. The process cartridge of claim 9 wherein, The process cartridge further comprises a cover fixedly connected to the first cartridge body, the cover comprising a cover body, a through hole, and a movable member mounting portion, and the driving force receiving assembly comprises a first driving force receiving member configured to provide a driving force for the developing member. The through hole is provided on the cover body, the movable member mounting portion is connected to the cover body, the first driving force receiving member is exposed through the through hole, and the first force receiving portion and the second force receiving portion are both movably mounted in the movable member mounting portion.

11. The processing box according to claim 10, characterized in that, The trigger part is provided on the second force receiving portion, and when the second force receiving portion receives the second force, the trigger part forces the first conductive member to be electrically disconnected from the second conductive member.

12. The process cartridge of claim 11, wherein, A portion of the retaining member is located on the second force receiving portion, and another portion of the retaining member is located on the movable member mounting portion, and when the first force receiving portion receives the first force and moves, the state of the triggered position in which the retaining member is retained is released.

13. The process cartridge of any one of claims 1-12, wherein, The voltage regulating device further comprises a voltage stabilizing member provided between the developing member and the conductive part.

14. The process cartridge of any one of claims 1-12, wherein, The imaging device is provided with a first power output member and a second power output member, and the second power output member outputs a voltage value greater than that of the first power output member. The process cartridge further comprises a power receiving member and a voltage drop element, one end of the voltage drop element being configured to be electrically connected to the power receiving member and the other end being configured to be electrically connected to the developing member, and the power receiving member is in contact with the second power output member to receive power.

15. The process cartridge of any one of claims 3-12, wherein, The first voltage value U1 is zero.

16. The process cartridge of any one of claims 3-12, wherein, The first voltage value U1 is between zero and a predetermined voltage value U.

17. The process cartridge of any one of claims 1-12, wherein, The process cartridge further comprises a speed reduction device configured to control the rotational speed of the developing member. When the process cartridge develops in the imaging device, the developing member and the conductive part are in a state of mutual electrical disconnection, and the developing member has a rotational speed V2. When the process cartridge does not develop in the imaging device, the developing member and the conductive part are in a state of mutual electrical connection, and the developing member has a rotational speed V1, which satisfies V1 18. The process cartridge of claim 17, wherein, The speed reduction device comprises a control member and a developing driving member, and the control member is directly or indirectly combined with the voltage regulating device, so that the control member can be controlled by the voltage regulating device or the force applying mechanism. When the voltage regulating device receives the force, the control member controls whether the developing driving member can continuously receive the driving force from the driving force receiving assembly, and then controls the rotation speed of the developing member.

19. The process cartridge of claim 18 wherein, The driving force receiving assembly comprises a first driving force receiving member for providing the developing member with driving force; The process cartridge further comprises at least one driving force output gear coaxially arranged with the first driving force receiving member and a slave driving portion capable of following the rotation of the driving force output gear, the driving force output gear being used to drive the developing member to continuously rotate at the rotation speed V2, the slave driving portion being used to drive the developing member to intermittently rotate at the rotation speed V1.

20. The process cartridge of claim 19, wherein, The developing member comprises a developing member shaft and a developing layer located radially outside the developing member shaft; The speed reduction device further comprises a developing gear and an idle gear, the developing driving member being the developing gear, the developing gear and the idle gear are both mounted on the developing member shaft, the idle gear does not drive the developing member shaft and is engaged with the driving force output gear to receive the driving force from the first driving force receiving member, the developing gear is arranged to be capable of driving the developing member shaft and is used to engage with the slave driving portion.

21. The process cartridge of claim 20 wherein, The control member is used to control at least one of at least a part of the developing gear and at least a part of the idle gear to move along the x direction between the engagement position and the disengagement position; In the engagement position, the developing gear is engaged with the idle gear, the developing member can be driven and rotates at the rotation speed V2; In the disengagement position, the developing gear is disengaged from the idle gear, the developing member can be driven and rotates at the rotation speed V1.

22. The process cartridge of claim 21, wherein, The slave driving portion is arranged as one protrusion capable of engaging with the teeth of the developing gear.

23. The process cartridge of claim 21, wherein, The slave driving portion is arranged as a plurality of protrusions spaced along the circumferential direction of the first driving force receiving member, the minimum distance between adjacent two protrusions being greater than the tooth thickness of the developing gear.

24. The process cartridge of claim 21, wherein, The speed reduction device further comprises a pushing member for pushing the developing gear towards the engagement position.

25. The process cartridge of claim 19 wherein, The process cartridge further comprises a powder feeding member, a first powder feeding gear, a second powder feeding gear, a first driving force output gear and a second driving force output gear; The developing member comprises a developing member shaft and a developing layer located radially outside the developing member shaft, the developing layer being used to carry the developer; The powder feeding member comprises a powder feeding member shaft and a powder feeding layer located radially outside the powder feeding member shaft, the powder feeding layer being in contact with the developing layer, the first powder feeding gear and the second powder feeding gear are both coaxially arranged with the powder feeding member shaft; The first driving force output gear and the second driving force output gear are both used to receive the driving force from the first driving force receiving member; The speed reduction device further comprises a driving force receiving portion, a first idle gear and a second idle gear, the first idle gear and the second idle gear are both mounted on the developing member shaft and do not drive the developing member shaft, the driving force receiving portion is located between the first idle gear and the second idle gear along the x direction and is capable of driving the developing member to rotate, the first idle gear is used to engage with the first driving force output gear, the first powder feeding gear is used to engage with the second driving force output gear, and the second powder feeding gear is used to engage with the second idle gear; The developing driving member is a driving force receiving portion, and the control member is configured to control the driving force receiving portion to move between an engagement position, at which the driving force receiving portion is engaged with the first idler gear, and a disengagement position, at which the driving force receiving portion is engaged with the second idler gear, and the developing member rotates at the rotational speed V2 at the engagement position and rotates at the rotational speed V1 at the disengagement position.

26. The process cartridge of claim 19 wherein, The developing member comprises a developing member shaft and a developing layer located radially outside the developing member shaft, and the developing layer is configured to carry a developer; The speed reduction device further comprises a driving force receiving portion configured to drive the developing member to rotate, and an idler gear mounted on the developing member shaft and not driving the developing member shaft, and the idler gear is configured to mesh with the driving force output gear; The control member is configured to control the driving force receiving portion to move between an engagement position, at which the driving force receiving portion is engaged with the idler gear, and a disengagement position, at which the driving force receiving portion is disengaged from the idler gear, and the developing member rotates at the rotational speed V2 at the engagement position and remains stationary at the disengagement position with the rotational speed V1 being zero.

Images