A developing cartridge

Abstract

This invention discloses a developing cartridge that can be detachably combined with a drum assembly and installed together with the drum assembly into an image forming apparatus, comprising: a cartridge body for containing developer, the cartridge body having a first end and a second end in a first direction; a rotation axis of the developing roller extending along the first direction; a rotation axis of a drive unit extending along the first direction, the drive unit being used to receive power output from the image forming apparatus, the drive unit being located at the first end of the cartridge body; a conductive component for contacting a power supply terminal within the image forming apparatus and being electrically connected to the developing roller, the conductive component including a second electrical contact portion for being electrically connected to a grounding component within the image forming apparatus; and a control component for controlling the electrical connection between the conductive component and the grounding component.

Description

Technical Field

[0001] This invention relates to the field of electronic imaging technology, and more specifically to a developing cartridge. Background Technology

[0002] The developing cartridge is a detachable component widely used in image forming apparatuses. Existing developing cartridges include an electrical receiver that contacts a detection device within the image forming apparatus. When the developing cartridge's drive unit receives power from the apparatus, it transmits the power to the electrical receiver, causing it to move and contact the detection device. The detection device generates different electrical signals based on the number, duration, and speed of contact, allowing the image forming apparatus to distinguish and determine information such as the developing cartridge's model, capacity, and size, thus providing appropriate prompts to the user. However, in existing developing cartridges, the electrical receiver and drive unit are located at opposite ends. This necessitates numerous transmission mechanisms connecting the electrical receiver and drive unit from one end of the developing cartridge to the other, resulting in a significant increase in the cartridge's size. Summary of the Invention

[0003] The technical problem solved by this invention is to address the issue that the development cartridge transmission mechanism needs to be connected from one end of the development cartridge to the other, which leads to an increase in the volume of the development cartridge.

[0004] A developing cartridge, detachably mounted within an image forming apparatus, the developing cartridge comprising:

[0005] A housing for containing developer, the housing having a first end and a second end disposed opposite to each other in a first direction, and a third end and a fourth end disposed opposite to each other in a second direction intersecting the first direction;

[0006] The developing roller, located at the third end, is rotatable about a first axis extending in a first direction;

[0007] A drive unit, located at the first end, is capable of rotating about a second axis extending in a first direction;

[0008] A conductive component includes an electrical receiving part and a grounding conductive element. The electrical receiving part is located at the second end and is used to receive a potential provided by the image forming apparatus. The grounding conductive element is disposed on the housing and is used to be electrically connected to the grounding element of the image forming apparatus.

[0009] A control component is disposed between the electrical receiving unit and the grounding conductive element, for controlling the electrical connection between the electrical receiving unit and the grounding conductive element, thereby generating an electrical signal for identifying the information of the developing cartridge.

[0010] In one embodiment, the conductive component further includes a movable portion that is movable between a contact position and a separation position. When the movable portion is in the contact position, the electrical receiving portion is electrically connected to the grounding conductive element or the grounding conductive element extends. When the movable portion is in the separation position, the electrical receiving portion is not electrically connected to the grounding conductive element or the grounding conductive element retracts. The control component is used to control the movement of the movable portion between the contact position and the separation position.

[0011] In one embodiment, the control component includes a control protrusion that follows the movement of the drive portion, and the movable portion that moves between a contact position and a separation position as the control protrusion moves.

[0012] In one embodiment, the control component further includes a rotating member or a translating member that rotates or translates in accordance with the rotation of the drive unit, and the control protrusion moves in accordance with the rotating member or translating member.

[0013] In one embodiment, a transmission gear is also included, which transmits power from the drive unit to the rotating or translating member.

[0014] In one embodiment, the movable part is disposed on the grounding conductive element, and the movable part is in contact with the grounding element.

[0015] In one embodiment, the grounding conductor moves relative to the housing.

[0016] In one embodiment, the conductive component further includes a first conductive element and a second conductive element, the first conductive element being located at the second end and having the electrical receiving portion thereon, and the second conductive element being at least partially located between the first end and the second end, the first end being closer to the movable portion than the second end.

[0017] In one embodiment, the conductive component further includes an intermediate conductive element, which and the grounding conductive element are located at the first end, and the intermediate conductive element is electrically connected to the first conductive element through a second conductive element.

[0018] In one embodiment, it further includes a powder feeding roller and a powder discharging blade, the powder feeding roller and the powder discharging blade being in contact with the developing roller, and the second conductive element being at least one of the powder discharging blade, the roller shaft of the developing roller, or the roller shaft of the powder feeding roller.

[0019] In one embodiment, a first chip is also included, the first chip including a storage medium and a ground electrical contact surface, the storage medium storing the developer cartridge information, the ground electrical contact surface being electrically connected to the grounding conductive element, and the ground electrical contact surface being located at the first end.

[0020] In one embodiment, the control component further includes a movable member that moves according to the movement of the drive unit, the movable member driving the drive unit to move between a contact position and a separation position.

[0021] In one embodiment, the intermediate conductive member is mounted on the movable member and is electrically connected to the electrical receiving part. The intermediate conductive member has the movable part located at the free end of the movable member, and the grounding conductive member is electrically connected to the grounding electrical contact surface. When the movable member is in the contact position, the movable part is in contact with and electrically connected to the grounding conductive member. When the movable member is in the separation position, the movable part is separated from the grounding conductive member and the electrical connection is broken.

[0022] In one embodiment, the movable component includes a movable pivot and an extension arm. The movable pivot has a movable hole that rotatably engages with a movable support on the housing. The extension arm extends radially from the circumferential surface of the movable pivot and has a positioning engagement portion at its free end. The intermediate conductive component is a conductive torsion spring, which includes a main body, a conductive part, and the movable part. The main body is sleeved on the movable pivot, the conductive part is electrically connected to the electrical receiving part, and the movable part is fixed on the positioning engagement portion.

[0023] In one embodiment, the movable member further includes a movable guide portion having a guide surface, and the rotating member is provided with a control protrusion that cooperates with the guide surface to drive the movable member to rotate between a contact position and a separation position.

[0024] In one embodiment, the first rotating member includes a toothed gear, a connecting portion, and a plate-shaped portion. The plate-shaped portion is connected to the toothed gear through the connecting portion, and the plate-shaped portion is provided with the control protrusion.

[0025] In one embodiment, the movable guide has a retaining surface that engages with the control protrusion when the toothed gear rotates to a disengaged state, so as to keep the movable part in the disengaged position.

[0026] In one embodiment, the grounding conductive element includes a chip holder made of a conductive material. The chip holder includes a chip support portion and a conductive extension portion. The first chip is mounted on the chip support portion, and the grounding electrical contact surface is electrically connected to the chip support portion. The conductive extension portion cooperates with the movable portion.

[0027] In one embodiment, the chip support includes a chip support groove in which the first chip is housed.

[0028] In one embodiment, the first chip includes a substrate, and the grounding conductive element further includes a chip holder made of a conductive material. The chip holder is fixedly disposed on the lower surface of the substrate and electrically connected to the grounding electrical contact surface. The chip holder is electrically connected to the chip support.

[0029] In one embodiment, the control component is a second chip, which includes a power supply and a control module. The control module is used to control the electrical connection or non-electrical connection between the electrical receiver and the grounding electrical contact surface, and the power supply provides power to the control module.

[0030] In one embodiment, a first chip is further included, the first chip including a grounding electrical contact surface located at the first end, the grounding electrical contact surface being electrically connected to the electrical receiving portion, and the grounding electrical contact surface being in contact with the grounding element of the image forming apparatus.

[0031] In one embodiment, the power supply is a battery, and the second chip further includes a switch or an insulator, which is disposed between the power supply and the control module to control the electrical connection and non-electrical connection between the battery and the control module. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the developing cartridge in Example 1;

[0033] Figure 2 This is a schematic diagram of the structure of the first end after the first cover is separated from the box body in Embodiment 1;

[0034] Figure 3 This is a schematic diagram of the structure of the second end in Embodiment 1;

[0035] Figure 4 This is a schematic diagram of the developing roller, conductive component, and first rotating component when viewed from left to right in Embodiment 1.

[0036] Figure 5 This is a schematic diagram of the structure of the developing roller, conductive component, and first rotating component when viewed from top to bottom in Embodiment 1.

[0037] Figure 6 This is a partial structural diagram of the first end when the movable part is in the separated position in Embodiment 1;

[0038] Figure 7 This is a partial structural diagram of the first end when the movable part is in the contact position in Embodiment 1;

[0039] Figure 8 This is a schematic diagram of the structure of the first end after the first rotating component and the first protective cover are hidden in Embodiment 2;

[0040] Figure 9 This is a schematic diagram of the structure of the first end after the cover is hidden in Embodiment 3;

[0041] Figure 10 This is a schematic diagram of the structure of the first rotating component, the intermediate conductive component, the grounding conductive component, and the swinging component in Embodiment 3;

[0042] Figure 11 This is a schematic diagram of the structure of the first end after the first protective cover is hidden in Embodiment 4;

[0043] Figure 12 This is a schematic diagram of the structure after the transmission gear is hidden when viewed from right to left in Example 4;

[0044] Figure 13 This is a schematic diagram of the structure of the second conductive component, the intermediate conductive component, the grounding conductive component, the transmission gear, and the component under test in Example 4;

[0045] Figure 14 This is a schematic diagram of the first end after the first cover is hidden and the drive unit, transmission gear, and translation component are separated from the box body in Embodiment 5.

[0046] Figure 15 This is a schematic diagram of the structure of the first end after the first cover is separated from the box body in Embodiment Six;

[0047] Figure 16 This is a schematic diagram of the first end after the first cover and the drive unit are separated from the box body in Embodiment Six;

[0048] Figure 17 This is a schematic diagram of the structure of the first end after the first protective cover and transmission gear are hidden in Embodiment 7;

[0049] Figure 18 This is a schematic diagram of the structure of the first support, intermediate conductive component, grounding conductive component, and translational component in Embodiment 7;

[0050] Figure 19 This is a schematic diagram of the structure of the first end after the first protective cover is hidden in Embodiment 9;

[0051] Figure 20 This is a schematic diagram of the exploded structure of the first end in Example 10;

[0052] Figure 21 This is a schematic diagram of the exploded structure of the first end in Example 11;

[0053] Figure 22 This is a schematic diagram of the exploded structure of the first end in Example Twelve;

[0054] Figure 23 This is a schematic diagram of the exploded structure of the first end in Example Thirteen;

[0055] Figure 24 This is a schematic diagram of the structure of the first end in Example 14;

[0056] Figure 25 This is a schematic diagram of the structure of the first end after the cover is hidden in Embodiment Fourteen;

[0057] Figure 26 This is a schematic diagram of the developing cartridge in Example 15;

[0058] Figure 27 This is an exploded view of the developing cartridge in Example 15;

[0059] Figure 28 This is a schematic diagram of the structure of the first end in Example 15;

[0060] Figure 29 This is a schematic diagram of the structure of the first protective cover, the first rotating component, and the conductive component in Embodiment 15;

[0061] Figure 30 This is a schematic diagram of the structure of the first end in Example Sixteen;

[0062] Figure 31 This is a schematic diagram of the developing cartridge in Example Sixteen;

[0063] Figure 32 This is a schematic diagram of the developing chamber in Example 17;

[0064] Figure 33 This is a schematic diagram of the structure of the first chip, the second chip, the translational component, the first rotating component, the first conductive component, and the second conductive component in Embodiment Seventeen;

[0065] Figure 34 This is a schematic diagram of the developing chamber in Example 18;

[0066] Figure 35 This is an exploded structural diagram of the first end of the box in Example 18;

[0067] Figure 36 This is a schematic diagram of the structure of the first rotating component and the idler wheel in Embodiment 18;

[0068] Figure 37 This is a schematic diagram of the exploded structure of the second end in Example 18;

[0069] Figure 38 This is a schematic diagram of the structure of the moving part and the intermediate conductive part in Example 18;

[0070] Figure 39This is a schematic diagram of the engagement relationship between the idler wheel, the first rotating component, and the conductive component when viewed from left to right and the moving part and the moving section are in the separated position in Embodiment 18.

[0071] Figure 40 This is a schematic diagram of the reset protrusion and the reset mating protrusion in Example 18.

[0072] Figure 41 This is a schematic diagram of the developing chamber in Example 19;

[0073] Figure 42 This is an exploded structural diagram of the first protective cover, chip bracket, chip, and second chip in Embodiment Nineteen.

[0074] Figure 43 This is an exploded structural diagram of the first cover, chip bracket, chip, and second chip in Example 19. Detailed Implementation

[0075] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the specific details described below are only a part of the embodiments of the present invention, and the present invention can be implemented in many other embodiments different from those described herein. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0076] In this document, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The directional terms such as "front," "back," "up," and "down" are defined based on the positions of the components in the accompanying drawings and their relative positions, and are merely for clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this invention.

[0077] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Example

[0078] like Figures 1 to 7 As shown, a developing cartridge 1, which can be detachably combined with a drum assembly and can be detachably installed together with the drum assembly into the interior of an image forming apparatus, includes: a cartridge body 10, a developing roller 131, a conductive component, and a transmission component.

[0079] The housing 10 has a first end 11 and a second end 12 arranged opposite each other in a first direction; a third end 13 and a fourth end 14 arranged opposite each other in a second direction; and a fifth end 15 and a sixth end 16 arranged opposite each other in a third direction. The first, second, and third directions intersect each other; specifically, they are orthogonal. In this embodiment, for ease of description, the first direction is defined as the left-right direction, the second direction as the front-back direction, and the third direction as the up-down direction. The first end 11 is the right end of the housing 10, the second end 12 is the left end of the housing 10, the third end 13 is the front end of the housing 10, the fourth end 14 is the rear end of the housing 10, the fifth end 15 is the upper end of the housing 10, and the sixth end 16 is the lower end of the housing 10. The housing 10 has an internal cavity for containing developer. The third end 13 of the housing 10 has a powder outlet through which the developer can exit the cavity.

[0080] The developing roller 131 is rotatably mounted on the cartridge 10. The axis of rotation of the developing roller 131 extends in a first direction. The developing roller 131 is located at the third end 13. In a second direction, a portion of the circumferential surface of the developing roller 131 is covered by the cartridge 10 and is located in the receiving cavity. The other portion is exposed to the outside of the cartridge 10 through the powder outlet. The developing roller 131 is used to transport the developer in the receiving cavity to the photosensitive drum outside the cartridge 10. The developing roller 131 includes a developing body and a developing roller shaft 1311. The developing roller shaft 1311 is coaxially arranged with the developing body. The developing body is fixedly covered on the circumferential surface of the developing roller shaft 1311 and rotates together with the developing roller shaft 1311. The left and right ends of the developing roller shaft 1311 are rotatably supported by the first end 11 and the second end 12, respectively.

[0081] The powder feeding roller is rotatably mounted on the housing 10, and its rotation axis extends in a first direction. The powder feeding roller includes a powder feeding body and a powder feeding roller shaft. The powder feeding roller shaft drives the powder feeding body to rotate, and the powder feeding body contacts the developing body to transfer developer to the developing body.

[0082] The drive unit 21a is rotatably located at the first end 11. The rotation axis of the drive unit 21a extends in the first direction. The drive unit 21a is used to receive power from the image forming apparatus and rotate. The drive unit 21a includes a power receiving unit 211 for engaging with the image forming apparatus to receive power and a drive gear 212. The power receiving unit 211 and the drive gear 212 are coaxially fixedly connected, and preferably the two are integrally formed.

[0083] The transmission assembly is located at the first end 11. In addition to the drive unit 21a, the transmission assembly also includes a developing gear 22 and a powder feeding gear 23 to transmit the power of the drive unit 21a to the developing roller 131 and the powder feeding roller. The developing gear 22 is fixedly installed at the right end of the developing roller shaft 1311. The developing gear 22 meshes with the drive gear 212 to drive the developing roller 131 to rotate. The powder feeding gear 23 is fixedly installed at the right end of the powder feeding roller shaft. The powder feeding gear 23 meshes with the drive gear 212 to drive the powder feeding roller to rotate.

[0084] In some embodiments, the developing cartridge 1 further includes a stirring frame rotatably mounted within the receiving cavity. The stirring frame includes a stirring shaft and stirring blades. The stirring blades are fixedly mounted on the stirring shaft and can rotate with the stirring shaft. The stirring blades are used to agitate the developer within the receiving cavity. The rotation axis of the stirring frame extends in a first direction. In some embodiments, a stirring frame may not be provided. A corresponding stirring gear is provided in the transmission assembly. The stirring gear is fixedly mounted on the right end of the stirring shaft. The stirring gear receives power transmitted from the drive unit 21a to drive the stirring frame to rotate. In other embodiments, the transmission assembly may also include any number of idler gears or transmission gears.

[0085] The conductive component is used to receive voltage provided by the image forming apparatus and to supply power to the developing roller 131. The conductive component includes a first conductive element 41a, a second conductive element 42a, an intermediate conductive element 43a, and a ground conductive element 44a.

[0086] A first conductive element 41a is fixedly disposed at the second end 12. The first conductive element 41a includes an electrical receiving part 411, a developing contact part 412, a first conductive part 413, and a powder feeding contact part 414 that are electrically connected to each other. The electrical receiving part 411 extends to the left in a direction away from the cartridge body 10. The developing contact part 412 extends in the front-to-back direction and is used to contact and be electrically connected to the developing roller shaft 1311. The powder feeding contact part 414 is electrically connected to the powder feeding roller. The first conductive part 413 extends in the vertical direction and is used to contact and be electrically connected to the second conductive element 42a. A second bracket 121a is fixedly installed at the second end 12. The second bracket 121a has a second support hole for supporting the developing roller shaft 1311. The developing contact part 412 passes through the second bracket 121a and extends into the second support hole to contact and electrically connect with the developing roller shaft 1311. The second bracket 121a has a left-protruding second support part 1211a for supporting the electrical receiving part 411. A second positioning protrusion is also fixedly installed on the second bracket 121a. A first positioning hole is provided on the first conductive element 41a. The second positioning protrusion is inserted into the first positioning hole to position the first conductive element 41a, preventing it from falling off the housing 10 or causing shaking. In this embodiment, the first conductive element 41a can be made of conductive materials such as conductive metal sheets, metal wires, or conductive resin.

[0087] The second conductive element 42a is used to transfer the potential from the second end 12 to the first end 11. In this embodiment, the second conductive element 42a is preferably a powder discharge blade. The other end of the powder discharge blade abuts against the circumferential surface of the developing body, so that when the developing roller 131 rotates, the developer carried on the developing body is controlled by the powder discharge blade as it passes through, preventing uneven developer thickness. The powder discharge blade is made of conductive metal material or conductive resin material, and extends in the first direction from the first end 11 to the second end 12.

[0088] The intermediate conductive component 43a is located at the first end 11. The intermediate conductive component 43a includes a third conductive part 432, a third main body part 431, a third positioning part, and a movable part 433. In this embodiment, the intermediate conductive component 43a can be made entirely of bent metal sheet or made of conductive materials such as conductive resin. The third main body part 431 extends in the front-rear direction and is located between the third conductive part 432 and the movable part 433 in the front-rear direction. The third positioning part is connected to the left end of the third main body part 431, and a third positioning hole is provided on the third positioning part. A third positioning post 435 is provided on the box body 10 to be inserted into the third positioning hole, thereby positioning the intermediate conductive component 43a by the third positioning post 435 to prevent the intermediate conductive component 43a from falling off or shaking from the box body 10. The third conductive part 432 is located at the front end of the third main body part 431, and the movable part 433 is located at the front end of the third main body part 432. At the rear end of 1, the third conductive part 432 contacts the powder dispensing knife. To prevent poor contact, the third conductive part 432 is bent in a "V" shape. This allows the third conductive part 432 to be squeezed and elastically deformed when it is inserted into the gap between the right end of the powder dispensing knife and the first end 11. Under the action of elastic force, the third conductive part 432 can make closer contact with the powder dispensing knife. Furthermore, the third conductive part 432 is clamped between the right end of the powder dispensing knife and the first end 11, which further positions the intermediate conductive part 43a and prevents the intermediate conductive part 43a from falling off or shaking from the box 10. The movable part 433 and the third main body part 431 form an angle through metal bending. The extension direction of the movable part 433 intersects the extension direction of the third main body part 431, so that the rear end of the movable part 433 is more to the right than the front end. The movable part 433 can move between a contact position and a separation position. When the movable part 433 is in the separation position, there is a first angle between the movable part 433 and the third main body part 431. When the movable part 433 is in the contact position, there is a second angle between the movable part 433 and the third main body part 431. The first angle is greater than the second angle. When the movable part 433 is in the contact position, it is in contact with and electrically connected to the grounding conductive member 44a. When the movable part 433 is in the separation position, it is not in contact with and not electrically connected to the grounding conductive member 44a. A first driven part 434 is also fixedly provided at the rear end of the movable part 433. The first driven part 434 extends downward from the rear end of the movable part 433.

[0089] The grounding conductive element 44a includes a fourth main body 441, a first electrical contact 442, and a second electrical contact 443. In this embodiment, the grounding conductive element 44a is made entirely of a metal sheet, but it can also be made of conductive materials such as conductive resin. The first electrical contact 442 is located at the front end of the fourth main body 441, and the second electrical contact 443 is located at the rear end of the fourth main body 441. The first electrical contact 442 has an upwardly curved portion. When viewed from above, the projection of the movable portion 433 overlaps with that of the fourth main body 441, but the movable portion 433 is located above the fourth main body 441 and is spaced apart from the fourth main body 441 in the vertical direction. The curved portion of the first electrical contact 442 overlaps with the movable portion 433 in the vertical direction, so that the movable portion 433 can contact the curved portion of the first electrical contact 442 when it moves. A fourth positioning hole is provided on the fourth main body 441, and a fourth positioning post 444 is also provided on the box body 10. The fourth positioning post 444 protrudes upward and is inserted into the fourth positioning hole, thereby positioning the grounding conductive element 44a and preventing the grounding conductive element 44a from falling off the box body 10 and shaking. The first electrical contact part 442 is used for electrical contact with the movable part 433, and the second electrical contact part 443 is used for electrical contact with the grounding element in the image forming apparatus. In one embodiment, the first conductive element 41a, the second conductive element 42a, the intermediate conductive element 43a, and the grounding conductive element 44a can be integrally formed or partially integrally formed.

[0090] The developing cartridge 1 in this embodiment also includes a control assembly for controlling the movement of the movable part 433 between a contact position and a separation position. The control assembly includes a first rotating member 51a, which is a toothed gear. The first rotating member 51a meshes with a drive gear 212, thereby receiving power from the drive part 21a and rotating. The rotation axis of the first rotating member 51a extends in a first direction. The first rotating member 51a is rotatably located at a first end 11 and supported by a first support shaft protruding to the right in the first direction. The first rotating member 51a is provided with a first control protrusion 511a and a second control protrusion 512a, which protrude to the left end face of the first rotating member 51a in the first direction. This embodiment does not limit the number of control protrusions on the first rotating member 51a. The first control protrusion 511a is provided with a first contact surface, and the second control protrusion 512a is provided with a second contact surface. The first contact surface and the second contact surface are used to contact the first driven part 434 and push the first driven part 434, so that the first driven part 434 drives the movable part 433 to move. The first contact surface and the second contact surface are arc surfaces (arc surfaces include inclined surfaces). By setting the arc surfaces, the contact is made smoother.

[0091] The developing cartridge 1 in this embodiment also includes an identification component, which includes a first chip 32. The first chip 32 includes a storage medium and an electrical contact surface 33. The storage medium is electrically connected to the electrical contact surface 33. The storage medium and the electrical contact surface 33 can be separate components or integrally formed. The electrical contact surface 33 is used to contact and connect with the electrical contact terminals in the image forming apparatus, so that the image forming apparatus can read the information stored in the storage medium (such as the model, lifespan, capacity, etc. of the developing cartridge) through the electrical contact surface 33. The electrical contact surface 33 is located at the first end 11, and the third direction is the normal direction of the electrical contact surface 33. In this embodiment, the storage medium and the electrical contact surface 33 are jointly and fixedly disposed on the substrate. The substrate is supported and fixed on the chip holder 31. The chip holder 31 is fixedly disposed at the first end 11. Preferably, the chip holder 31 and the first cover 111 are integrally formed. The electrical contact surface 33 is a copper sheet or conductive metal sheet fixedly disposed on the substrate. In other embodiments, the storage medium and the substrate can also be separately disposed from the electrical contact surface 33, such as the storage medium being disposed at the second end 12. The storage medium and the electrical contact surface 33 are electrically connected through conductive components such as wires. In other embodiments, the identification component may not be provided.

[0092] The following is a detailed description of the operation of the control and conductive components:

[0093] When the developing cartridge 1 is installed into the image forming apparatus, the electrical receiving part 411 contacts and is electrically connected to the power supply terminal (powered by the power supply circuit within the image forming apparatus) and the second electrical contact part 443 makes electrical contact with the grounding member within the image forming apparatus. In the initial state, the moving part 433 is in the separated position, meaning there is no electrical connection between the intermediate conductive member 43a and the ground conductive member 44a.

[0094] When the image forming apparatus is started, and the drive unit 21a receives power from the image forming apparatus and rotates clockwise, the drive unit 21a drives the developing roller 131 and the powder feeding roller to rotate, and simultaneously drives the first rotating member 51a to rotate counterclockwise, causing the first rotating member 51a to move from a position engaged with the drive gear to a position disengaged from the drive gear. At the same time, the normal potential provided by the power supply terminal can be guided to the developing roller shaft 1311 through the first conductive member 41a, so that the developing roller shaft 1311 has the same potential as the power supply terminal, thereby creating a potential difference between the developing roller 131 and the developer in the cartridge 10, which allows the developer to be adsorbed.

[0095] As the first rotating member 51a rotates, during the process of the first rotating member 51a moving from the position of meshing with the drive gear to the position of disengaging from the drive gear, the duration from the start of the rotation of the first rotating member 51a to the contact between the first control protrusion 511a and the first driven part 434 is T1. During this process, the moving part 433 is in the disengaged position, so the potential is at a normal potential during this process.

[0096] During the process of the first rotating member 51a moving from the position of meshing with the drive gear to the position of disengaging from the drive gear, the first control protrusion 511a contacts the first driven part 434. The first driven part 434 is pushed and drives the moving part 433 to move from the separation position to the contact position, thereby making the intermediate conductive member 43a electrically connected to the ground conductive member 44a. Since the ground conductive member 44a is electrically connected to the grounding member in the image forming apparatus, the potentials of the power supply terminal, the first conductive member 41a, the second conductive member 42a, the intermediate conductive member 43a, and the ground conductive member 44a all drop to the ground potential and remain there for a duration of T2. As a result, the detection device (electrically in contact with the power supply terminal) in the image forming apparatus detects a change in potential.

[0097] Then, as the first rotating member 51a rotates, the first control protrusion 511a disengages from the first driven part 434. At this time, under the elastic action of the movable part 433 itself, the movable part 433 moves from the contact position to the separation position, thereby causing the potential to return to the potential provided by the power supply circuit and lasting for a duration of T3.

[0098] Then, as the first rotating member 51a rotates, the second control protrusion 512a contacts the first driven part 434 and causes the moving part 433 to move from the separation position to the contact position again, thereby causing the potential to drop to ground potential again and continue to be T4.

[0099] Then, as the first rotating member 51a rotates, the second control protrusion 512a disengages from the first driven part 434, and the movable part 433 moves from the contact position to the separation position under the elastic action and remains in the separation position without moving.

[0100] In this embodiment, the first rotating member 51a can be regarded as the detected member. The detected member receives the power transmitted by the driving part 21a and moves. The first control protrusion 511a and the second control protrusion 512a can be regarded as the detected protrusions. The detected protrusions follow the movement of the detected member and control the change of potential. The control component can be regarded as the detected component.

[0101] Finally, the first rotating component 51a moves to a position where it disengages from the drive gear and stops rotating, thus completing the detection process.

[0102] The detection device within the image forming apparatus can determine information about the developing cartridge 1 (such as its age, model, and capacity) by measuring the number of times the potential drops to ground potential, the duration of each drop to ground potential, and the duration of the period between two ground potentials when the potential is at a normal level.

[0103] For example, in this embodiment, if the developing cartridge 1 is an old developing cartridge 1 that has been used, then the first rotating member 51a is initially in a state of disengagement from the drive gear, so the moving part 433 will not move and the potential will not change.

[0104] Furthermore, if the second control protrusion 512a is not provided in this embodiment, the potential drops to ground potential only once, and the image forming apparatus can determine that this developing cartridge 1 is a new developing cartridge 1 and can print 3000 sheets of paper. If the potential drops to ground potential twice, it can be determined that this developing cartridge 1 is a new developing cartridge 1 and can print 6000 sheets of paper. Similarly, those skilled in the art can increase the number of control protrusions.

[0105] Those skilled in the art can also adjust the duration of T1 by adjusting the distance between the first control protrusion 511a and the missing tooth portion on the first rotating member 51a along the circumference in the direction of rotation. For example, if the distance between the missing tooth portion and the first control protrusion 511a is longer, T1 will increase, and vice versa.

[0106] Those skilled in the art can also adjust the duration of T2 by adjusting the size of the first control protrusion 511a in the circumferential direction; increasing the size increases T2, and vice versa.

[0107] T3 can be adjusted by adjusting the circumferential distance between the first control protrusion 511a and the second control protrusion 512a. Increasing the distance increases T3, and vice versa.

[0108] T4 can be adjusted by adjusting the size of the second control protrusion 512a in the circumferential direction. Increasing the size will increase T4, and vice versa.

[0109] This implementation yields the following numerical ranges for T1, T2, T3, and T4, within which the developing cartridge 1 will not report an error after being installed in the image forming apparatus: 200ms≤T1≤2000ms, 80ms≤T2≤1200ms, 300ms≤T3≤600ms, 80ms≤T4≤500ms. Example

[0110] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 1.

[0111] like Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that:

[0112] The second conductive element is the developing roller shaft 1311. The developing roller shaft 1311 receives the potential transmitted by the first conductive element 41a and transmits the potential to the first end 11. The first bracket 42b is fixedly installed on the first end 11. The first bracket 42b is used to rotatably support the right end of the developing roller shaft 131. The first bracket 42b is made of conductive resin. The first bracket 42b serves as a transition conductive element to receive the potential transmitted by the developing roller 1311. In one embodiment, the second conductive element can also be the roller shaft of the powder feeding roller or a separate conductive element.

[0113] The intermediate conductive member 43a has a third conductive part 432 that contacts and is electrically connected to the first bracket 42b. The third main body part 431 is fixed to the first end 11. The movable part 433 is fixedly connected to the upper end of the third main body part 431. The movable part 433 is tilted forward relative to the third main body part 431. The first driven part 434 is disposed at the front end of the movable part 433 and has an angle with the movable part 433. The first driven part 434 is tilted downward relative to the movable part 433.

[0114] The first electrical contact 442 of the grounding conductive member 44a is located on the upper side of the movable part 433.

[0115] In this embodiment, the first included angle when the movable part 433 is in the separated position is smaller than the second included angle when it is in the contact position.

[0116] In this embodiment, during the process of the first rotating member 51a rotating from the position of meshing with the drive gear to the position of disengaging from the drive gear, the first control protrusion 511a and the second control protrusion 512a can contact the first driven part 434 and push the movable part 433 to swing upward and move from the separation position to the contact position.

[0117] By adopting the structure of this embodiment, the structure of the first conductive element 41a can be simplified. The first conductive element 41a no longer needs to be provided with the first conductive part 413, thus eliminating the need to supply power to the powder discharge knife. Example

[0118] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 1.

[0119] like Figures 9 to 10 As shown, the difference between this embodiment and Embodiment 1 is that:

[0120] The developing cartridge 1 also includes a swing member 45a, which is located in front of the grounding conductive member 44a. The cartridge body 10 is provided with a swing shaft 454 extending in the vertical direction. The swing member 45a is mounted on the swing shaft 454 and can swing around it. The swing member 45a is provided with a second driven part 451 and a second driving part 452. The second driven part 451 is located at the right end of the swing member 45a and extends downward. The second driving part 452 is located at the left end of the swing member 45a and extends upward. The left end face of the intermediate conductive member 43a abuts against the second driving part 452. The upper end of the swing member 45a is also provided with an upwardly protruding reset protrusion 453, which is located on the right side of the swing shaft 454. A reset elastic member 455 is installed between the reset protrusion 453 and the fourth positioning post 444. In this embodiment, the reset elastic member 455 is a tension spring. The swing shaft 454 is located between the second driven part 451 and the second driving part 452.

[0121] By adopting the structure in this embodiment, the structure of the intermediate conductive element 43a can be simplified, and there is no need to provide a first driven part on the intermediate conductive element 43a.

[0122] During the process of the first rotating member 51a rotating from the position of meshing with the drive gear to the position of disengaging from the drive gear, the second driven part 451 of the swing member 45a is touched by the first control protrusion 511a and the second control protrusion 512a in sequence, thereby causing the swing member 45a to swing clockwise (viewed from top to bottom), and then causing the second driving part 452 to push the moving part 433 from the disengaged position to the contact position.

[0123] When the first control protrusion 531a and the second control protrusion 532a disengage from the second driven part 451, the swing member 45a swings counterclockwise under the elastic force of the reset elastic member 455, thereby no longer pushing the movable part 433, and the movable part 433 moves from the contact position to the separation position under its own elastic force. Example

[0124] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 2.

[0125] like Figures 11 to 13 As shown, the difference between this embodiment and Embodiment Two is that:

[0126] This embodiment includes a transmission gear 58a, which includes a first transmission gear 581a and a second transmission gear 582a coaxially arranged. The radius of the second transmission gear 582a is smaller than that of the first transmission gear 581a, and the second transmission gear 582a is integrally formed on the left end face of the first transmission gear 581a.

[0127] A support plate protruding to the right is fixedly installed on the first end 11. The support plate extends in the front-back direction and protrudes to the right from the first end 11.

[0128] The control component further includes a translational member 53a, which is mounted on the support plate and can slide on the support plate in the front-back direction. The translational member 53a is provided with a first control protrusion 531a, a second control protrusion 532a, and a plurality of teeth 533a. The plurality of teeth 533a are arranged in the direction of movement of the translational member 53a (i.e., arranged in the front-back direction), and the plurality of teeth 533a mesh with the second transmission gear 582a. That is, in this embodiment, the translational member 53a is a rack. The first control protrusion 531a and the second control protrusion 532a are located to the left of the plurality of teeth 533a and are arranged at intervals in the direction of movement of the translational member 53a (i.e., arranged in the front-back direction). The first control protrusion 531a is located in front of the second control protrusion 532a. The first control protrusion 531a is provided with a first contact surface 5311, and the second control protrusion 532a is provided with a second contact surface 5321. The first contact surface 5311 and the second contact surface 5321 are inclined relative to the front-back direction. Specifically, the front end of the first contact surface 5311 and the second contact surface 5321 is lower than the rear end in the vertical direction.

[0129] In this embodiment, a second guide portion 421 is provided on the left end face of the first bracket 42b. The second guide portion 421 protrudes to the left from the left end face of the first bracket 42b. A second guide hole is formed on the second guide portion 421 in the vertical direction, and the second guide hole penetrates the second guide portion 421. A second protrusion 422 is also integrally formed on the left end face of the first bracket 42b. A second positioning portion 423 extending from top to bottom is integrally formed on the second protrusion 422. The second positioning portion 423 and the first bracket 42b are spaced apart in the horizontal direction. The second positioning portion 423 and the second protrusion 422 are both located above the second guide portion 421.

[0130] In this embodiment, the intermediate conductive element 43a includes a third elastic element 433a and a third sliding element 431. The third sliding element 431 is installed in the second guide hole of the second guide part 421 and can slide along the second guide hole in the vertical direction. The lower end and the upper end of the third sliding element 431 extend downward and upward from the second guide hole, respectively. The upper end of the third sliding element 431 is fixedly connected to the lower end of the third elastic element 433a. In this embodiment, the third elastic element 433a is a compression spring. The third positioning part is inserted into the third elastic element 433a, and the upper end of the third elastic element 433a abuts against the third protrusion, thereby positioning the third elastic element 433a and preventing it from falling off. The lower end of the third sliding element 431 is a movable part 432a, which extends to the right from the lower end of the third sliding element 431. When projected in the front-back direction, the movable part 432a overlaps with the projections of the first control protrusion 531a and the second control protrusion 532a. The third sliding member 431 is electrically connected to the first bracket 42b through the third elastic member 433a, and is also electrically connected to the first bracket 42b through contact with the second guide hole.

[0131] In this embodiment, the grounding conductive member 44a further includes a fourth extension, which extends downward from the front end of the fourth main body 441. A first electrical contact 442 of the grounding conductive member 44a is disposed at the lower end of the fourth extension, and extends forward from the lower end of the fourth extension. The first electrical contact 442 is located above the movable part 432a. When the movable part 432a is in the separated position, the movable part 432a and the first electrical contact 442 are spaced apart in the vertical direction. When the movable part 432a is in the contact position, the movable part 432a and the first electrical contact surface 33 are not spaced apart in the vertical direction.

[0132] When the first transmission gear 581a drives the second transmission gear 582a to rotate clockwise, the second transmission gear 582a transmits power to the translation member 53a through multiple teeth 533a, causing the translation member 53a to move to the left, thereby causing the first control protrusion 531a and the second control protrusion 532a to contact the movable part 432a in sequence.

[0133] The duration from the start of movement of the translation member 53a to the contact between the first control protrusion 531a and the moving part 432a is T1.

[0134] As the translation member 53a moves, the first control protrusion 531a comes into contact with the movable part 432a for a duration of T2. When the first control protrusion 531a comes into contact with the movable part 432a, the first contact surface 5311 is inclined relative to the front-back direction, which causes the first contact surface 5311 to exert an upward force on the movable part 432a. This causes the movable part 432a to drive the third sliding part to slide upward and compress the third elastic member 433a, thereby moving the movable part 432a from the separation position to the contact position. The movable part 432a then forms an electrical connection with the grounding conductive member 44a.

[0135] As the translational member 53a moves, the entire process from the moment the first control protrusion 531a disengages from the movable part 432a until the second control protrusion 532a contacts the movable part 432a lasts for a duration of T3. During this process, the movable part 432a moves from the contact position to the separation position together with the third sliding member 431 under the elastic force of the third elastic member 433a.

[0136] Then the second control protrusion 532a contacts the movable part 432a for a duration of T4, causing the movable part 432a to move from the separation position to the contact position again.

[0137] As the translation member 53a continues to move forward, the second control protrusion 532a disengages from the movable part 432a, and the movable part 432a moves from the contact position back to the separation position.

[0138] Finally, as the translation member 53a moves, all the teeth 533a disengage from the second transmission gear 582a, causing the translation member 53a to stop moving, the detection process of the image forming apparatus stops, and the developing cartridge 1 successfully passes the detection.

[0139] In this embodiment, the translation member 53a is the detected member, and the translation member 53a has a first control protrusion 531a that can be regarded as the first detected protrusion and a second control protrusion 532a that can be regarded as the second detected protrusion. Example

[0140] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment four.

[0141] like Figure 14 As shown, the difference between this embodiment and Embodiment 4 is that:

[0142] A support groove 112 is provided on the first end 11 to replace the support plate. The support groove 112 is slotted from top to bottom and the lower end is closed while the right end is not closed.

[0143] In this embodiment, the translation member 53a extends in the vertical direction. An insertion part 534a extending to the left of the translation member 53a is integrally formed at the left end of the translation member 53a. The insertion part 534a can be inserted into the support groove 112, so that the translation member 53a is supported and limited by the support groove 112. In this embodiment, the movement direction of the translation member 53a is along the support groove 112 in the vertical direction.

[0144] Multiple teeth 533a are provided on the rear end of the translation member 53a and arranged in the vertical direction. The front end of the translation member 53a is provided with a first control protrusion 531a and a second control protrusion 532a. The first control protrusion 531a and the second control protrusion 532a are arranged at intervals in the vertical direction. The left end of the first control protrusion 531a and the second control protrusion 532a are chamfered at the connection between the upper end and the lower end, so that the contact between the first control protrusion 531a and the second control protrusion 532a and the movable part 433 is smoother.

[0145] The intermediate conductive element 43a is fixed to the second conductive element 42a by adhesive bonding in this embodiment. The intermediate conductive element 43a includes an adhesive portion 434a and a movable portion 433. The adhesive portion 434a is fixed to the right end face of the second conductive element 42a by adhesive bonding and is electrically connected to the second conductive element 42a. The movable portion 433 is connected to the upper end of the adhesive portion 434a and forms an angle with it. The extension direction of the movable portion 433 intersects the vertical direction, and the upper end of the movable portion 433 is further to the right than the lower end. The first angle when the movable portion 433 is in the contact position is greater than the second angle when the movable portion 433 is in the separated position. The projection of the movable portion 433 in the vertical direction overlaps with the projections of the first control protrusion 531a and the second control protrusion 532a.

[0146] The grounding conductive element 44a has a first electrical contact 442 at its front end in this embodiment. The projection of the first electrical contact 442 overlaps with that of the movable part 433 in the left-right direction.

[0147] When the first transmission gear 581a drives the second transmission gear 582a to rotate, the translational member 53a moves upward along the sliding groove, so that the first control protrusion 531a and the second control protrusion 532a successively contact the movable part 433, thereby moving the movable part 433 from the separated position to the contact position that contacts the grounding conductive member 44a. Example

[0148] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment four.

[0149] like Figures 15 to 16 As shown, the difference between this embodiment and Embodiment 4 is that:

[0150] The second transmission gear 582a is a bevel gear.

[0151] The transmission gear also includes a third transmission gear 583a and a fourth transmission gear 584a arranged coaxially. The third transmission gear 583a is a bevel gear and meshes with the second transmission gear 582a. The rotation axis of the third transmission gear 583a extends in the vertical direction. A support seat 113 protruding to the right is fixedly provided on the first end 11. A third support shaft extending upward is provided on the support seat 113. The third transmission gear 583a is coaxially sleeved on the third support shaft and can rotate around the third support shaft.

[0152] The fourth transmission gear 584a is coaxially fixed at the upper end of the third transmission gear 583a and is a spur gear.

[0153] The first cover 111 is provided with a limiting hole 1111 for supporting and limiting the translational member 53a. The limiting hole 1111 extends through the first cover 111 in the left-right direction. The translational member 53a is slidably installed in the limiting hole 1111 relative to the limiting hole 1111, and is thus restricted by the limiting hole 1111 to move only in the left-right direction.

[0154] In this embodiment, the translation member 53a extends in the left-right direction, and multiple teeth 533a mesh with the fourth transmission gear 584a. The front end of the translation member 53a is provided with a first control protrusion 531a and a second control protrusion 532a. The connection between the front end of the first control protrusion 531a and the second control protrusion 532a and the left end is provided with a chamfer, so that the contact with the movable part 433 is smoother.

[0155] In this embodiment, the intermediate conductive member 43a may not be provided. In this embodiment, the upper end of the first bracket 42b is provided with an upwardly protruding second protrusion 422. In this embodiment, the first electrical contact 442 of the grounding conductive member 44a is set as a movable part 433, that is, the first electrical contact 442 can move relative to the grounding conductive member 44a. The movable part 433 extends upward from the front end of the first conductive member 41a and then extends to the right to form a bend. The movable part 433 overlaps with the projection of the first control protrusion 531a and the second control protrusion 532a in the left-right direction, and the movable part 433 overlaps with the projection of the second protrusion 422 in the front-back direction.

[0156] When the first transmission gear 581a rotates, the power is transmitted through the second transmission gear 582a and the third transmission gear 583a, ultimately causing the fourth transmission gear 584a to rotate clockwise (viewed from top to bottom). The fourth transmission gear 584a then drives the translational member 53a to move from right to left, causing the first control protrusion 531a and the second control protrusion 532a to successively contact the movable part 433, thereby causing the movable part 433 to move from the separated position to the contact position twice. This embodiment eliminates the intermediate conductive member 43a, reducing the number of components and lowering costs. Example

[0157] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment four.

[0158] like Figures 17 to 18 As shown, the difference between this embodiment and Embodiment 4 is that:

[0159] The rear end of the first bracket 42b is provided with a second swing shaft 424 protruding to the right.

[0160] An intermediate conductive member 43a has a through hole for inserting a second swing shaft 424, thereby allowing the intermediate conductive member 43a to be supported by the second swing shaft 424 and to swing around the second swing shaft 424. The swing shaft of the intermediate conductive member 43a extends in the front-to-back direction. The lower end of the intermediate conductive member 43a is the driven part 431a, and the upper end is the movable part 433. The second swing shaft 424 is located between the driven part 431a and the movable part 433 in the vertical direction. A reset elastic member 434a1, which is a compression spring, is installed between the left end of the intermediate conductive member 43a and the first end 11. The reset elastic member 434a1 is located below the second swing shaft 424.

[0161] The grounding conductive member 44a has a downwardly extending fourth extension at its front end, and the first electrical contact 442 extends forward from the lower end of the fourth extension. The intermediate conductive member 43a is capable of swinging around the second swing axis 424 between a separation position where the movable part 433 and the first electrical contact 442 are separated, and a contact position where the movable part 433 and the first electrical contact 442 are in contact. The projections of the first electrical contact 442 and the movable part 433 overlap in the left-right direction.

[0162] The first control protrusion 531a and the second control protrusion 532a are disposed at the left end of the translation member 53a and protrude to the left. The front end of the first control protrusion 531a and the second control protrusion 532a are chamfered at the junction with the left end, so that the contact between the first control protrusion 531a and the second control protrusion 532a and the driven part 431a is smoother. The projections of the first control protrusion 531a and the second control protrusion 532a and the driven part 431a in the front-back direction overlap.

[0163] When the translational member 53a moves from back to front, the first control protrusion 531a and the second control protrusion 532a successively touch the driven part 431a, thereby causing the intermediate conductive member 43a to move from the separation position to the contact position twice. During the process of the intermediate conductive member 43a moving from the separation position to the contact position, under the power provided by the first control protrusion 531a and the second control protrusion 532a, the intermediate conductive member 43a swings counterclockwise (viewed from back to front), causing the movable part 433 to contact the first electrical contact part 442. When the first control protrusion 531a and the second control protrusion 532a disengage from the driven part 431a, the intermediate conductive member 43a swings clockwise (viewed from back to front) under the elastic force of the reset elastic member 434a1, causing the movable part 433 to disengage from the first electrical contact part 442. Example

[0164] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 2.

[0165] The difference between this embodiment and Embodiment 2 is as follows:

[0166] The transmission assembly includes a transmission gear, which is located between the first rotating member and the drive gear in the front-to-back direction. The transmission gear meshes with both the drive gear and the first rotating member. The position of the first rotating member and the transmission ratio can be adjusted by setting the transmission gear.

[0167] In this embodiment, the first rotating member is provided with a first magnetic element (first control protrusion) and a second magnetic element (second control protrusion). The N pole of the first magnetic element and the second magnetic element point to the axis of the first rotating member, and the S pole points away from the axis of the first rotating member.

[0168] A third magnetic component is fixedly mounted on the movable part. The movable part is located below the first electrical contact of the grounding conductive component, and there is a vertical gap between the movable part and the first electrical contact. The vertical distance between the movable part and the rotation axis of the first rotating component is greater than the radius of the circle formed by the paths traversed by the first and second magnetic components as the first rotating component rotates. The movable part and the third magnetic component are located above the rotation axis of the first rotating component. The S pole of the third magnetic component points towards the rotation axis, and the N pole of the third magnetic component points away from the rotation axis of the first rotating component.

[0169] During the rotation of the first rotating component, when the first and second magnetic components pass the highest point of their trajectories, they respectively generate a repulsive force on the third magnetic component. This causes the third magnetic component to drive the movable part upward, thereby bringing the movable part into contact with and electrically connecting it to the first electrical contact. This achieves a double grounding effect, allowing the detection device within the image forming apparatus to detect two potential changes, thus enabling the developing cartridge 1 to pass the detection. Example

[0170] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 1.

[0171] like Figure 19 The difference between this embodiment and Embodiment 1 is as follows:

[0172] The intermediate conductive member 43a does not have a driven part 442a and a moving part 443a. The rear end of the intermediate conductive member 43a is a third electrical contact part 437.

[0173] The first end 11 is provided with a first pivot shaft 114 protruding upward in the vertical direction. A grounding conductive member 44a is sleeved on the first pivot shaft 114 and can swing around it. The grounding conductive member 44a includes an integrally formed pivot portion 441a, a driven portion 442a, and a movable portion 443a fixedly connected together. The pivot portion 441a has a pivot hole for the first pivot shaft 114 to be inserted, thereby allowing the grounding conductive member 44a to swing around the first pivot shaft 114. The driven portion 442a is connected to the lower end of the pivot portion 441a and extends downward. The movable portion 443a extends to the right from the pivot portion 441a. The pivot portion 441a contacts and is electrically connected to the third electrical contact portion 437. In this embodiment, the movable portion 443a is used to contact and be electrically connected to a grounding member within the image forming apparatus. The driven portion 442a is located to the left of the first rotating member 51a. A reset elastic element 115 is also installed between the movable part 443a and the box body 10. The reset elastic element 115 is a tension spring, with one end fixedly connected to the movable part 443a and the other end fixedly connected to the box body 10. Similarly, in this embodiment, the first rotating part 51a is regarded as the detected part.

[0174] The first control protrusion 511a and the second control protrusion 512a respectively have an inclined first contact surface 5111 and a second contact surface 5121. The first contact surface 5111 and the second contact surface 5121 intersect the front-back direction and the left-right direction. The first contact surface 5111 and the second contact surface 5121 are positioned further upstream than downstream of the first end 11 in the rotation direction of the first rotating member 51a. The first contact surface 5111 and the second contact surface 5121 are used to contact the driven part 442a.

[0175] When the first rotating member 51a receives power and rotates counterclockwise (viewed from right to left), the first contact surface 5111 of the first control protrusion 511a contacts the driven part 442a, thereby generating a leftward force on the driven part 442a. This causes the driven part 442a to drive the entire grounding conductive member 44a to overcome the elastic force of the reset elastic member 115 and swing clockwise around the first pivot axis 114 (viewed from top to bottom). This causes the movable part 443a to move from a separated position that is not in contact with the grounding member to a contact position that is in contact with the grounding member.

[0176] As the first rotating member 51a rotates, when the first contact surface 5111 disengages from the driven part 442a, the grounding conductive member 44a swings counterclockwise under the elastic force of the reset elastic member 115, thereby causing the movable part 443a to move from the contact position to the separation position.

[0177] The function of the second control protrusion 512a is the same as that of the first control protrusion 511a, and will not be described again. Finally, the first rotating member 51a rotates to the position where it is disengaged from the drive gear, thus completing the detection process. Example

[0178] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment four.

[0179] like Figure 20 As shown, the difference between this embodiment and Embodiment 4 is that:

[0180] In this embodiment, there is only one transmission gear. The left end of the first transmission gear 581a is coaxially fixedly connected to a threaded part 5811a, and a threaded groove is provided on the outer circumferential surface of the threaded part 5811a.

[0181] The first end 11 is provided with a first guide rail 116 extending in the left-right direction. A translational member 53a, which can slide along the first guide rail 116 in the left-right direction, is mounted on the first guide rail 116. A first control protrusion 531a and a second control protrusion 532a are fixedly provided on the upper end of the translational member 53a. The first control protrusion 531a is located to the left of the second control protrusion 532a. The first control protrusion 531a and the second control protrusion 532a are respectively provided with a first contact surface and a second contact surface that are inclined surfaces. The first contact surface and the second contact surface intersect the left-right direction and the up-down direction. The left end of the first contact surface and the second contact surface is lower than the right end. The left end of the translational member 53a is provided with an insertion protrusion 534a1 that protrudes to the left and inserts into a threaded groove. The translational member 53a is regarded as a test piece with a test protrusion.

[0182] When the first transmission gear 581a receives power and rotates counterclockwise, it drives the threaded portion 5811a to rotate counterclockwise as well. Through the engagement of the threaded groove and the insertion protrusion 534a1, the threaded groove provides a leftward force to the insertion protrusion 534a1, causing the translational member 53a to slide to the left and drive the first control protrusion 531a and the second control protrusion 532a to move to the left. This causes the first contact surface and the second contact surface to sequentially contact the driven portion 442a. When the first contact surface contacts the driven portion 442a, it exerts a force on the driven portion 442a. A leftward force is generated, causing the grounding conductive element 44a to swing clockwise, thereby moving the movable part 443a from the separation position to the contact position. Since there is a gap between the first control protrusion 531a and the second control protrusion 532a in the left-right direction, the second contact surface 5121 does not immediately contact the driven part 442a after the first contact surface disengages. Therefore, under the action of the reset elastic element 115, the grounding conductive element 44a swings counterclockwise, causing the movable part 443a to move from the contact position to the separation position. The process of the second control protrusion 532a contacting the driven part 442a is the same as that of the first control protrusion 531a, and will not be described again. Finally, the first transmission gear 581a rotates to the position where it disengages from the drive gear and stops rotating, completing the detection process. That is, in this embodiment, the translational element 53a does not need to have teeth; it only moves after being abutted.

[0183] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 2.

[0184] like Figure 21 As shown, the difference between this embodiment and Embodiment Two is that:

[0185] The intermediate conductive member 43a is not provided with a driven part 442a and a movable part 443a. In this embodiment, the intermediate conductive member 43a is a conductive elastic member, specifically a tension spring. The front end of the intermediate conductive member 43a is fixedly connected to the first bracket 42b and electrically connected, and the rear end is fixedly connected to the first electrical contact part at the front end of the ground conductive member 44b and electrically connected. The fixed connection can be by snap-fit ​​or welding.

[0186] The first end 11 is provided with a first track, and the grounding conductive member 44b can move relative to the housing 10 in the front-back direction along the first track. The grounding conductive member 44b includes a first electrical contact, a fourth main body, and a movable part 443b. The front end of the fourth main body is the first electrical contact. The movable part 443b is fixedly provided at the rear end of the fourth main body and extends rearward. The movable part 443b can move between a contact position that is in contact with and electrically connected to the grounding member in the image forming apparatus and a separation position that is not in contact with and not electrically connected to the grounding member in the image forming apparatus. The lower end of the fourth main body is also provided with a driven part 442b, which extends downward from the fourth main body.

[0187] In this embodiment, the transmission assembly also includes a first idler wheel, which includes a large-diameter gear part and a small-diameter gear part that are coaxially integrally formed. The large-diameter gear part meshes with the drive gear, and the small-diameter gear part meshes with the first rotating member 51a, thereby adjusting the axial position and transmission ratio of the first rotating member 51a.

[0188] When the first rotating member 51a receives power and rotates clockwise (viewed from right to left), the first control protrusion 511a and the second control protrusion 512a sequentially contact the driven part 442b, causing the grounding conductive member 44a to move backward along the first track and stretch the intermediate conductive member 43a, causing the movable part 443b to move backward from the separation position to the contact position. When the first control protrusion 511a disengages from the driven part 442b, the grounding conductive member 44a moves forward under the elastic force of the intermediate conductive member 43a, causing the movable part 443b to move forward from the contact position to the separation position. The operation of the second control protrusion 512a is the same as that of the first control protrusion 511a, so it will not be described again. When the first rotating member 51a moves to the point where the missing tooth part is opposite to the small diameter gear part, the first rotating member 51a stops rotating. At this time, the movable part 443b of the grounding conductive member 44a remains in the separation position under the elastic force of the intermediate conductive member 43a. In some embodiments, the grounding conductive element 44a may also move or swing upward in a second direction or a third direction.

[0189] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 5.

[0190] like Figure 22 As shown, the difference between this embodiment and Embodiment 5 is that:

[0191] The intermediate conductive member 43a does not have a driven part 442c and a movable part 443c. Instead of the movable part 443c, the third electrical contact part is provided at the rear end of the third main body.

[0192] The first end 11 is provided with an upwardly protruding first pivot shaft 1112, and the third electrical contact part has a through hole for the first pivot shaft 1112 to be inserted.

[0193] The grounding conductive element 44c includes an integrally formed fourth main body 441c, a driven part 442c, and a movable part 443c. The fourth main body 441c has a pivot hole, into which a first pivot shaft 1112 is inserted, thereby positioning the grounding conductive element 44c and allowing it to swing around the first pivot shaft 1112. The grounding conductive element 44c is located above the third electrical contact. Because the first pivot shaft 1112 is simultaneously inserted into both the through hole in the third electrical contact and the pivot hole in the fourth main body 441c, the third electrical contact and the fourth main body 441c can maintain overlap in the vertical direction, thus maintaining contact and electrical connection between the fourth main body 441c and the third electrical contact. The movable part 443c extends rearward from the rear end of the fourth main body 441c, and the driven part 442c is fixed to the front end of the fourth main body 441c and extends downward from the front end of the fourth main body 441c. The projection of the driven part 442c in the vertical direction overlaps with the projections of the first control protrusion 531a and the second control protrusion 532a in the vertical direction. A reset elastic element, which is a tension spring, is also installed between the fourth main body part 441c and the housing. The connection position between the reset elastic element and the fourth main body part 441c is located on the rear side of the fourth pivot shaft.

[0194] When the first transmission gear 581a rotates, the translational member 53a moves upward, causing the first control protrusion 531a and the second control protrusion 532a to contact the driven part 442c in sequence. This causes the driven part 442c to be subjected to a leftward force, causing the grounding conductive member 44c to swing clockwise (viewed from top to bottom) around the first pivot axis 1112. This, in turn, causes the movable part 443c to move from a separated position where it is not in electrical contact with the grounding member to a contact position where it is in electrical contact with the grounding member.

[0195] When the first control protrusion 531a disengages from the driven part 442c, the grounding conductive part 44c swings counterclockwise around the first pivot axis 1112 under the elastic force of the reset elastic member, thereby causing the movable part 443c to move from the contact position to the separation position. The operation of the second control protrusion 532a is the same as that of the first control protrusion 531a and will not be described again. After both the first control protrusion 531a and the second control protrusion 532a have made contact with and disengaged from the driven part 442c, the grounding conductive part 44c no longer moves, keeping the movable part in the separation position.

[0196] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 6.

[0197] like Figure 23 As shown, the difference between this embodiment and Embodiment Six is ​​that:

[0198] Multiple teeth 533a are fixedly disposed at the front end of the translation member 53a, and the first control protrusion 531a and the second control protrusion 532a are fixedly disposed at the rear end of the translation member 53a. The translation member 53a is located on the rear side of the fourth transmission gear 584a and the multiple teeth 533a mesh with the fourth transmission gear 584a.

[0199] The intermediate conductive element 43a and the ground conductive element 44b in this embodiment have roughly the same structure as in embodiment 12. The difference is that the driven part 444b of the ground conductive element 44b is located at the upper end of the fourth main body part 441b. When the movable part 443b is in the separated position, the projection of the driven part 444b in the left-right direction overlaps with the projection of the first control protrusion 531a and the second control protrusion 532a. The first control protrusion 531a is located to the right of the second control protrusion 532a.

[0200] When the first transmission gear 581a rotates counterclockwise (viewed from right to left), the fourth transmission gear 584a rotates clockwise (viewed from top to bottom), thereby driving the translational member 53a to move from left to right relative to the housing 10. This causes the first control protrusion 531a and the second control protrusion 532a to come into contact with and disengage from the driven part 444bb. This allows the grounding conductive member 44b to move in the front-back direction, and the movable part 443b to move between the contact position and the disengagement position.

[0201] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 6.

[0202] like Figure 24-25 As shown, the difference between this embodiment and Embodiment Six is ​​that:

[0203] In this embodiment, there is no translational component. The first rotating component 55a is a spur gear that meshes with the fourth transmission gear 584a. A second rotating shaft 118 extending in the vertical direction is fixedly provided on the first end 11. The first rotating component 55a is rotatably sleeved on the second rotating shaft 118. The rotation axis of the first rotating component 55a extends in the vertical direction. The upper end surface of the first rotating component 55a is provided with an upwardly protruding first control protrusion 551 and a second control protrusion 552. The first control protrusion 551 and the second control protrusion 552 are arranged along the circumferential direction of the first rotating component 55a. The circumferential surface of the first rotating component 55a is provided with a toothed portion. That is, in this embodiment, the first rotating component 55a serves as a detected component with the detected protrusion.

[0204] A cover 151a is also installed on the upper end of the housing 10. The cover 151a is used to cover the third rotary transmission gear 583a, the fourth transmission gear 584a, and the first rotating member 55a in the vertical direction. An observation port 1511 is provided on the cover 151a, through which the first rotating member 55a is exposed in the vertical direction, so that the first rotating member 55a can be observed from the outside. A fifth positioning post 1512 is fixedly provided on the rear wall of the observation port 1511, and the fifth positioning post 1512 protrudes forward.

[0205] The intermediate conductive component 43a is formed by bending steel wire into a torsion spring shape. The upper surface of the cover 151a is provided with a receiving groove for accommodating the third conductive part 432. The receiving groove can also limit the third conductive part 432 to prevent the third conductive part 432 from being misaligned. The front end of the third conductive part 432 is in contact with and electrically connected to the powder discharge knife. The third main body 431 is a hollow cylinder formed by winding steel wire. The third main body 431 is fitted onto the fifth positioning post 1512 so that the intermediate conductive component 43a is supported by the fifth positioning post 1512. The cover 151a is also provided with a movable opening 1513, which penetrates the cover 151a in the vertical direction. The right end of the movable opening 1513 is provided with a first abutted part. The movable part 433 is located inside the movable opening 1513. The movable part 433 includes a downwardly protruding driven part 434b formed by bending a steel wire. In the vertical direction, the driven part 434b overlaps with the movement trajectory of the first control protrusion 551 and the second control protrusion 552. The right end of the movable part 433 abuts against the upper surface of the first abutted part. When the intermediate conductive member 43a is installed on the fifth positioning post 1512, the third conductive part 432 abuts against the upper surface of the receiving groove, and the movable part 433 abuts against the upper surface of the first abutted part, thereby causing the intermediate conductive member 43a to undergo elastic deformation and have elastic pre-tightening force, preventing the intermediate conductive member 43a from loosening, and ensuring that the movable part 433 is always kept abutting against the first abutted part under the action of elastic force.

[0206] The grounding conductive element 44a is generally formed by bending steel wire into a torsion spring shape. A sixth positioning post 116a is fixedly installed at the first end 11, protruding to the right. The first electrical contact portion 442 of the grounding conductive element 44a extends forward and abuts against the upper surface of the cover 151a. The first electrical contact portion 442 is located below the movable portion 433. Under the action of elasticity, the movable portion 433 abuts downward against the first electrical contact portion 442. When the movable portion 433 is in the contact position, the first electrical contact portion 442 is in contact with and electrically connected to the movable portion 433. When the movable portion 433 is in the separated position, the first electrical contact portion 442 is not in contact with and not electrically connected to the movable portion 433. The fourth main body portion 441 of the grounding conductive element 44a is a hollow cylinder formed by winding steel wire. The fourth main body portion 441 is sleeved on the sixth positioning post 116a, thereby supporting the grounding conductive element 44a. The second electrical contact 443 extends rearward from the fourth main body 441. The rear end of the first cover 111 is fixedly provided with a second abutting part 1113. The second electrical contact 443 abuts against the upper surface of the second abutting part 1113. A limiting part 1114 is also fixedly provided on the second abutting part 1113. The limiting part 1114 and the second abutting part 1113 together form a limiting groove with openings at the left end, front end and rear end, so that when the second electrical contact 443 is inserted into the limiting groove, it is limited in the vertical direction and the right direction, preventing the second electrical contact 443 from being misaligned.

[0207] When the drive unit 21a receives power from the image forming apparatus and rotates, the power is transmitted to the first rotating member 55a through the drive unit 21a, the first transmission gear 581a, the second transmission gear 582a, the third transmission gear 583a, and the fourth transmission gear 584a, so that the first rotating member 55a rotates from the position of being engaged with the fourth transmission gear 584a to the position of being disengaged from the fourth transmission gear 584a.

[0208] During the rotation of the first rotating member 55a, the first control protrusion 551 and the second control protrusion 552 sequentially contact the driven part 434b, causing the driven part 434b to be pushed upward by the first control protrusion 551 and the second control protrusion 552 in sequence. This causes the movable part 433 to swing upward twice from the contact position to the separation position. When the driven part 434b disengages from the first control protrusion 551 and the second control protrusion 552, the movable part 433 swings downward under the action of elasticity and moves from the separation position to the contact position.

[0209] The number of limiting parts 1114 can also be set to multiple, with two limiting parts 1114 opening to the left and right respectively, so that the second electrical contact part 443 is limited by the limiting parts 1114 in both the left and right directions.

[0210] The limiting part 1114 can also be configured to snap onto the second abutment part 1113 in a snap-fit ​​manner and clamp the second electrical contact part 443 between the limiting part 1114 and the second abutment part 1113.

[0211] On the upper and lower surfaces of the limiting groove formed by the limiting part 1114 and the second abutting part 1113, limiting protrusions 1115 protruding upward and downward respectively can be provided. The second electrical contact part 443 is disposed between the limiting protrusion 1115 and the right end face of the limiting groove, so that the limiting protrusion 1115 and the right end face of the limiting groove together limit the second electrical contact part 443 in the left and right direction.

[0212] The limiting part 1114 can also be fixedly disposed on the first end 11. The limiting part 1114 is a groove that is recessed to the left. The second electrical contact part 443 is disposed in the limiting part 1114. The second abutting part 1113 is used to abut against the left end of the limiting part 1114 to close the opening at the right end of the limiting part 1114, preventing the second electrical contact part 443 from disengaging from the limiting part 1114, thereby limiting the second electrical contact part 443.

[0213] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in embodiment fourteen.

[0214] like Figures 26 to 29 As shown, the difference between this embodiment and embodiment fourteen is that the identification component includes a first chip 32, which includes a storage medium and electrical contact surfaces. In this embodiment, the number of electrical contact surfaces is four. In other embodiments, the number of electrical contact surfaces may be different, but there must be at least one electrical contact surface. The electrical contact surfaces are arranged in a first direction, and from right to left in the first direction, they are a first electrical contact surface 331, a grounding electrical contact surface 332, a third electrical contact surface 333, and a fourth electrical contact surface 334. When the developing cartridge 1 is installed in the image forming apparatus, the electrical contact surfaces contact and are electrically connected to the identification terminal in the image forming apparatus. The identification terminal in the image forming apparatus also has four electrical contacts, which are arranged in a first direction, and from right to left in the first direction, they are a first electrical contact, a second electrical contact, a third electrical contact, and a fourth electrical contact. The first electrical contact, the second electrical contact, the third electrical contact, and the fourth electrical contact correspond one-to-one with the first electrical contact surface 331, the grounding electrical contact surface 332, the third electrical contact surface 333, and the fourth electrical contact surface 334, respectively. The second electrical contact is electrically connected to the grounding component.

[0215] The intermediate conductive component 43a is fixedly installed at the first end 11, and the front end of the intermediate conductive component 43a is in contact with and electrically connected to the powder discharge knife.

[0216] In this embodiment, the movable end portion 442 is located at the front end of the grounding conductive member 44a, and the driven part 444b is located between the movable end portion 442 and the fourth main body portion 441 in the front-rear direction. The driven part 444b is an upwardly protruding protrusion. In this embodiment, both the movable end portion 442 and the driven part 444b are located below the first rotating member 55a. The first control protrusion 551 and the second control protrusion 552 are disposed on the lower surface of the first rotating member 55a. The first control protrusion and the second control protrusion can contact the driven part 444b to apply a force to the driven part 444b. Under the action of the force applied by the first control protrusion 551 and the second control protrusion 552 and the elastic force of the grounding conductive member 44a itself, the driven part 444b drives the movable end portion 442 to move between a contact position that is in contact with and electrically connected to the rear end of the intermediate conductive member 43a and a separation position that is not in contact with and not electrically connected to the rear end of the intermediate conductive member 43a. In this embodiment, the second electrical contact portion 443 at the rear end of the grounding conductive member 44a does not directly contact the grounding member.

[0217] A chip holder 34 is fixedly mounted on the substrate. The chip holder 34 is fixed to the substrate by welding or bonding and is electrically connected to the grounding contact surface 332. The chip holder 34 is also in contact with and electrically connected to the chip support 31. In this embodiment, both the chip support 31 and the first cover 111 are made of conductive materials such as conductive resin or metal. The chip support 31 is fixedly mounted on the right end of the first cover 111 and is electrically connected to the first cover 111. The chip holder 34 can be regarded as a grounding conductive component.

[0218] An extension 1116 is provided at the left end of the first cover 111. The extension 1116 extends to the left from the left end of the first cover 111 and abuts against and is electrically connected to the second electrical contact 443. The first control protrusion 551 and the second control protrusion 552 move together with the fourth transmission gear 584a. When the first control protrusion 551 contacts the driven part 444b, it presses the driven part 444b downward, causing the driven part 444b to drive the movable end 442 to undergo elastic deformation and move downward from the separation position to the contact position. As the first control protrusion 551 moves, when the first control protrusion 551 disengages from the driven part 444b, under the elastic action of the grounding conductive member 44a, the movable end 442 moves upward from the contact position to the separation position. The working process of the second control protrusion 552 is the same as that of the first control protrusion 552, and will not be described again.

[0219] Compared to other embodiments, in this embodiment, the grounding contact surface 332 is electrically connected to the grounding component, eliminating the need for a conductive component extending outward from the developing cartridge 1 to contact the grounding component. This greatly reduces the risk of the conductive component used for grounding being deformed by collision during transportation.

[0220] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 1.

[0221] like Figure 30 and Figure 31 As shown, the difference between this embodiment and Embodiment 1 is that:

[0222] The identification component includes a first chip 32, which includes a storage medium and a control module.

[0223] In this embodiment, the second conductive element 42c is a wire. The wire extends from the second end 12 to the first end 11 along the first direction. The left end of the wire is fixedly connected to and electrically connected to the electrical receiving part, and the right end of the wire is fixedly connected to the chip 32 and electrically connected to the control module. The control module is also electrically connected to the grounding electrical contact surface 332. The control module is used to control whether the second conductive element 42c and the grounding electrical contact surface 332 are electrically connected. That is, in this embodiment, the control module can be regarded as the detected element.

[0224] In this embodiment, there is no need to set up any gears other than the drive unit 21a, the developing gear 22 and the powder feeding gear 23, nor is there a need to set up the intermediate conductive part 43a and the grounding conductive part 44a, thereby reducing the number of parts, reducing costs and simplifying the structure.

[0225] When the developing cartridge 1 in this embodiment is installed in the image forming apparatus, the first electrical contact, the third electrical contact, and the fourth electrical contact supply power to the chip. In other embodiments, one or more of the first electrical contact, the third electrical contact, and the fourth electrical contact can supply power to the chip. When the chip receives the power provided by the image forming apparatus, the image forming apparatus can read the information stored in the storage medium to determine the model, capacity, lifespan, and other information of the developing cartridge 1 and provide it to the user. At the same time, the control module starts working, so that the second conductive element 42c and the grounding electrical contact surface 332 are connected and disconnected in a regular manner. Specifically, when the developing cartridge 1 is installed in the image forming apparatus and the chip receives the power provided by the image forming apparatus, the second conductive element 42c and the grounding electrical contact surface 332 are first in a disconnected state (i.e., not electrically connected) for a duration of T1. Then, the control module makes the second conductive element 42c and the grounding electrical contact surface 332 enter a conducting state (i.e., electrically connected) for a duration of T2, so that the second conductive element 42c is grounded through the grounding electrical contact surface 332. The control module then disconnects the second conductive element 42c from the grounding contact surface 332 for a duration of T3. The control module then reconnects the second conductive element 42c from the grounding contact surface 332 for a duration of T4. Finally, the control module keeps the second conductive element 42c disconnected from the grounding contact surface 332.

[0226] The control module can be configured to repeat the above process when power is restored after a power outage, so that the user can reuse the image forming device without replacing the chip after removing the developing cartridge 1 from the image forming apparatus.

[0227] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment Sixteen.

[0228] like Figures 32 to 33 As shown, the difference between this embodiment and Embodiment Sixteen is that:

[0229] The identification component includes a first chip 32 and a second chip 37. The first chip 32 includes a storage medium, and the second chip 37 includes a control module. A first electrical contact surface 331, a grounding electrical contact surface 332, a third electrical contact surface 333, and a fourth electrical contact surface 334 are disposed on the upper surface of the first chip 32. A fifth electrical contact surface 335 is also disposed on the lower surface of the first chip 32, and the fifth electrical contact surface 335 is electrically connected to the grounding electrical contact surface 332.

[0230] The second chip 37 has a sixth electrical contact surface 371 on its upper surface. The second chip 37 is mounted on a chip support 31 and located below the first chip 32. The sixth electrical contact surface 371 contacts and is electrically connected to the fifth electrical contact surface 335. The second chip 37 has a battery 372 for supplying power to the control module and a switch 373. The switch 373 controls the connection and disconnection between the battery 372 and the control module. The switch 373 can move between a closed position (forming a circuit between the battery 372 and the control module) and a closed position (breaking the circuit between the battery 372 and the control module). In this embodiment, the switch 373 is a metal sheet. The second conductive element 42a is electrically connected to the control module of the second chip 37.

[0231] A slide rail 311 is provided on the chip holder 31. A movable member 35 that can slide in a first direction is installed inside the slide rail 311. A reset elastic member 36 is sleeved on the movable member 35. The left end of the reset elastic member 36 abuts against the right end of the slide rail 311, and the right end of the reset elastic member 36 abuts against a limiting protrusion on the movable member 35. An inclined surface is provided on the right end of the movable member 35. A switch protrusion 511b protruding to the right in the first direction is provided on the right end of the first rotating member 51a. The switch protrusion 511b is used to contact the inclined surface on the movable member 35 to apply a rightward force to the movable member 35. In this embodiment, the first rotating member 51a is a toothed gear. That is, in this embodiment, the control module can be regarded as the second detected member, the first rotating member 51a can be regarded as the first detected member, and the switch protrusion 511b can be regarded as the control protrusion.

[0232] The working process is as follows: When the developing cartridge 1 is installed into the image forming apparatus, the first rotating member 51a receives power and begins to rotate, causing the switch protrusion 511b to contact the moving member 35. This causes the moving member 35 to move to the right and compress the reset elastic member 36. The right end of the moving member 35 then pushes the switch member 373 from the disconnected position to the connected position, causing the battery 372 to start supplying power to the control module of the second chip 37, thereby enabling the control module to start working. The working process of the control module is the same as in Embodiment Sixteen and will not be described again. Compared with the existing detection structure, this embodiment also has the advantages of simple structure and fewer parts.

[0233] In other embodiments, the second chip 37 may also be fixedly mounted on the second end 12 to achieve the same effect.

[0234] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment 1.

[0235] like Figures 34 to 40 As shown, the difference between this embodiment and Embodiment 1 is that:

[0236] In this embodiment, the electrical receiving part 411 is fixedly installed on the second end 12 and is made of conductive resin material (or other conductive materials such as metal). The electrical receiving part 411 is used to contact the detection rod in the image forming apparatus and to contact and electrically connect with the power supply terminal in the image forming apparatus. In this embodiment, the first conductive member 41a may not have a developing contact part that contacts the developing roller shaft 1311, that is, it is not electrically connected to the developing roller shaft 1311, and the powder feeding contact part 414 is electrically connected to the powder feeding roller shaft.

[0237] The second conductive element 42a (powder discharge blade) contacts the developing body to transfer potential. In this embodiment, the developing body and the developing roller 1311 may not be electrically connected.

[0238] The intermediate conductive element 43a is a conductive torsion spring, which includes an integrally formed third conductive part 432, a third main body part 431, and a movable part 433. The third main body part 431 is a hollow cylinder formed by winding conductive steel wire. The third conductive part 432 is used to contact and electrically connect with the second conductive element 42a. A rightward protruding abutment is fixedly provided on the first end 11. The third conductive part 432 abuts upward against the abutment, thereby limiting the third conductive part 432 to prevent it from swinging upward and ensuring stable contact between the third conductive part 432 and the second conductive element 42a. The movable part 433 is used to contact and electrically connect with the chip carrier 31.

[0239] The grounding conductive component is a chip support 31. In this embodiment, the chip support 31 is made of conductive resin material (it can also be made of other conductive materials such as metal, or additional wires can be provided for conduction). The chip support 31 includes an integrally formed chip support portion 311a and a conductive extension portion 312. The chip support portion 311a is located to the right of the conductive extension portion 312, that is, the conductive extension portion 312 extends to the left from the chip support portion 311a. When viewed from the top and bottom, the conductive extension portion 312 at least covers a part of the intermediate conductive component 43a (in this embodiment, the conductive extension portion 312 covers the movable portion 433 of the intermediate conductive component 43a). The chip support portion 311a includes a chip support groove 3111 formed by a downward indentation. A first flange 3112 and a second flange 3113 are respectively provided on the front and rear side walls of the chip support groove 3111. The first flange 3112 protrudes rearward from the front side wall of the chip support groove 3111, and the second flange 3113 protrudes forward from the rear side wall of the chip support groove 3111.

[0240] The first chip 32 includes a storage medium, electrical contact surfaces, a substrate 32b, and electrical contacts. The electrical contact surfaces include a first electrical contact surface 331, a ground electrical contact surface 332, a third electrical contact surface 333, and a fourth electrical contact surface 334. The storage medium, electrical contact surfaces, and chip socket 34 are all fixedly disposed on the substrate 32b, and the storage medium is electrically connected to the electrical contact surfaces. The first electrical contact surface 331, the ground electrical contact surface 332, the third electrical contact surface 333, and the fourth electrical contact surface 334 are arranged at intervals from right to left on the upper surface of the substrate 32b. The electrical contact surfaces contact and are electrically connected to the recognition terminals in the image forming apparatus. The ground electrical contact surface 332 is used to contact and be electrically connected to the ground terminal in the recognition terminals, thereby enabling the ground electrical contact surface 332 to be grounded.

[0241] The chip socket 34 is electrically connected to the grounding contact surface 332 and is fixedly mounted on the lower surface of the substrate 32b. The chip socket 34 is formed by bending a steel sheet (in other embodiments, it can also be formed by integral injection molding of conductive resin). When the substrate 32b is mounted on the chip support groove 3111, the lower surface of the substrate 32b is supported by the upper surfaces of the first flange 3112 and the second flange 3113. The chip holder 34 is located between the first flange 3112 and the second flange 3113 in the front-rear direction. The front wall and the rear wall of the chip holder 34 are respectively fixedly provided with a first latching part 341 and a second latching part 342. The first latching part 341 is formed by extending forward and upward from the front wall of the chip holder 34, and the second latching part 342 is formed by extending backward and upward from the rear wall of the chip holder 34. The lower ends of the first latching part 341 and the second latching part 342 are connected to the chip holder 34. The upper ends of the first latching part 341 and the second latching part 342 are respectively used to abut against the lower surface of the first flange 3112 and the lower surface of the second flange 3113, thereby restricting the movement of the substrate 32b so that the substrate 32b is positioned, thereby fixing the chip as a whole on the chip support groove 3111 and preventing loosening. In other embodiments, the storage medium, substrate 32b, and chip holder 34 can also be disposed at other locations on the developing cartridge 1. Only an additional wire needs to be provided between the storage medium and the electrical contact surface for electrical connection. Similarly, the chip holder 34 only needs to be provided with an additional wire to connect to the ground electrical contact surface 332.

[0242] The control assembly includes a moving part 57a and a first rotating part 51a (i.e., the part being detected).

[0243] The movable part 57a includes an integrally formed movable pivot part 571, an extension arm 572, a positioning and mating part 574, and a movable guide part 573.

[0244] A cylindrical movable support is fixedly provided on the first end 11. The movable support extends to the right from the first end 11 in the first direction. The movable pivot part 571 of the movable member 57a is cylindrical and is provided with a movable hole 5711 extending in the first direction. The movable hole 5711 is rotatably engaged with the movable support part, so that the movable member 57a can rotate around the movable support part. The axis of rotation of the movable member 57a extends in the first direction.

[0245] The extension arm 572 extends radially rearward from the circumferential surface of the movable pivot 571. The positioning and fitting part 574 is located at the rear end of the extension arm 572, which is the free end of the extension arm 572. The movable guide part 573 extends protruding to the right from the right end of the extension arm 572. The upper surface of the movable guide part 573 is the guide surface 5731, which is an upwardly arched arc shape (in other embodiments, the guide surface 5731 can also be set as an inclined plane, such as an inclined setting from the front lower to the rear upper). The guide surface 5731 is also provided with a retaining surface 5732, which is formed by a downward indentation from the middle of the guide surface 5731.

[0246] The third main body 431 of the intermediate conductive member 43a is fitted onto the movable pivot 571, that is, the movable pivot 571 is inserted into the third main body 431 to support the intermediate conductive member 43a. The third conductive part 432 extends forward from the third main body 431 to the second conductive member 42a to contact and electrically connect with the second conductive member 42a. The movable part 433 extends backward to the rear end of the movable member 57a. The movable part 433 is provided with a bend-formed annular movable positioning part. The positioning fitting part 574 is fixedly provided at the free end of the extension arm 572 and protrudes from left to right. The movable positioning part is fitted onto the positioning fitting part 574, so that the movable part 433 can move with the movement of the movable member 57a. The movable member 57a can move around the movable support, along with the movable member 433, between a contact position and a separation position. When the movable member 57a is in the contact position, the movable member 433 is in contact with and electrically connected to the lower surface of the conductive extension 312. When the movable member 57a is in the separation position, the movable member 433 is not in contact with the conductive extension 312 and the electrical connection is broken. Simultaneously, the intermediate conductive member 43a can provide a restoring force to the movable member 57a. When the movable member 57a moves from the contact position to the separation position, the intermediate conductive member 43a undergoes elastic deformation, thereby enabling the intermediate conductive member 43a to move the movable member 57a from the separation position to the contact position.

[0247] The first rotating member 51a, in addition to the toothed gear 535a, also includes a connecting portion 536 and a plate-shaped portion 537. The connecting portion 536 extends to the left from the left end of the toothed gear 535a, and the plate-shaped portion 537 extends to the left from the left end of the connecting portion 536. The plate-shaped portion 537 is provided with a first control protrusion 511a and a second control protrusion 512a, which protrude to the left from the left end of the plate-shaped portion 537. The first control protrusion 511a and the second control protrusion 512a are symmetrically arranged about the rotation axis of the first rotating member 51a. The first control protrusion 511a and the second control protrusion 512a move with the first rotating member 51a. When the first rotating member 51a moves from the engaged state to the disengaged state, the first control protrusion 511a and the second control protrusion 512a successively contact the guide surface 5731, thereby applying downward pressure to the movable member 57a. This causes the movable member 57a to drive the movable part 433 to move twice from the contact position to the separation position. Furthermore, when the toothed gear 535a finally rotates to the disengaged state, the second control protrusion 512a moves to the retaining surface 5732, causing the outer circumferential surface of the second control protrusion 512a to engage with the concave shape of the retaining surface 5732. This keeps the second control protrusion 512a within the retaining surface 5732, thus keeping the movable member 57a in the separation position. Simultaneously, the elastic force of the intermediate conductive member 43a prevents the first rotating member 51a from continuing to rotate.

[0248] The diameter of the connecting part 536 is smaller than the diameter of the toothed gear 535a, and the diameter of the connecting part 536 is smaller than the distance between the line connecting the first control protrusion 511a and the second control protrusion 512a. A reset protrusion 515a is fixedly provided on the right end face of the toothed gear 535a. The reset protrusion 515a includes a first inclined surface 5151 and a second inclined surface 5152. The first inclined surface 5151 is located in front of the second inclined surface 5152. The right end of the first inclined surface 5151 intersects with the right end of the second inclined surface 5152 to form the tip of the reset protrusion 515a.

[0249] The first cover 111 is provided with an observation port through which at least a portion of the first rotating member 51a can be observed. The first cover 111 is also provided with an elastic arm extending from front to back. Preferably, the front end of the elastic arm is integrally formed with the first cover 111, and the rear end of the elastic arm is a free end. A reset engagement protrusion 1117 is provided at the rear end of the elastic arm, protruding from right to left. The reset engagement protrusion 1117 includes a third inclined surface 11171 and a fourth inclined surface 11172. The third inclined surface 11171 is located in front of the fourth inclined surface 11172. The left ends of the third inclined surface 11171 and the fourth inclined surface 11172 intersect to form the tip of the reset engagement protrusion 1117. A first direction intersects with the first inclined surface 5151, the second inclined surface 5152, the third inclined surface 11171, and the fourth inclined surface 11172. When the first rotating member 51a rotates to the disengaged state, the second inclined surface 5152 of the reset protrusion 515a abuts against the third inclined surface 11171. This means that if the first rotating member 51a wants to continue rotating clockwise (viewed from right to left), it must squeeze the reset engagement protrusion 1117, causing the elastic arm to undergo elastic deformation. This ensures that the reset protrusion 515a cannot pass the reset engagement protrusion 1117 when there is no external force, thereby limiting the continued rotation of the first rotating member 51a. During production, workers need to check the usability of the developing cartridge 1. Therefore, the control component is rotated to confirm whether it can successfully cooperate with the image forming apparatus and pass the image forming apparatus's test. After the test is completed, the first rotating member 51a of the control component has moved to the disengaged state. At this time, in order to reduce wear, the developed cartridge 1 that has passed the test can still be sold after a reset operation. During the reset, the first rotating member 51a only needs to be turned clockwise so that the reset protrusion 515a can overcome the elastic force of the elastic arm under the action of external force, thereby passing over the reset engagement protrusion 1117, and finally the first inclined surface 5151 abuts against the third inclined surface 11171, thus completing the reset. After the reset is completed, the elastic force of the elastic arm acts on the first inclined surface 5151, so that the first rotating member 51a has a slight clockwise rotation tendency. Thus, when the drive unit 21a receives the power provided by the image forming apparatus and rotates, the first rotating member 51a, with the help of the elastic force provided by the elastic arm and the reset engagement protrusion 1117, can easily move the toothed gear 535a from the disengaged state to the engaged state.

[0250] In this embodiment, the transmission assembly also includes an idler gear 56b (i.e., a transmission gear). The idler gear 56b includes a small-diameter gear 562 and a large-diameter gear 561, which are coaxially integrally formed. The large-diameter gear 561 is located to the left of the small-diameter gear 562 and meshes with the drive gear. The small-diameter gear 562 meshes with the toothed gear 535a. In the first direction, the large-diameter gear 561 is located between the plate-shaped portion 537 and the toothed gear 535a. This ensures that when the first rotating member 51a rotates, the plate-shaped portion 537 will not interfere with the idler gear 56b. Furthermore, to simplify the installation process of the idler gear 56b and the first rotating member 51a, the plate-shaped portion 537 is elliptical, allowing the idler gear 56b to be installed first, followed by the first rotating member 51a, without first assembling the first rotating member 51a and the idler gear 56b together and then installing them onto the housing 10, thus simplifying the installation process.

[0251] Unless otherwise specified, the structure of the developing cartridge 1 in this embodiment is the same as that in Embodiment Sixteen.

[0252] like Figures 41 to 43 As shown, the difference between this embodiment and Embodiment Sixteen is that:

[0253] The intermediate conductive element 43a is a conductive torsion spring, comprising an integrally formed third main body 431, a third conductive part 432, and a fourth conductive part 438. The third main body 431 is a hollow cylinder formed by winding steel wire. The third conductive part 432 extends forward from the third main body 431, and the fourth conductive part 438 extends backward from the third main body 431. An integrally formed conductive support part 119 protruding to the right is fixedly provided on the first end. The conductive support part 119 is inserted into the third main body 431 to support the intermediate conductive element 43a. The front end of the third conductive part 432 is used to abut against and electrically connect with the powder discharge knife.

[0254] In this embodiment, the first chip 32 includes a substrate 32b, a storage medium, a first electrical contact surface 331, a ground electrical contact surface 332, a third electrical contact surface 333, and a fourth electrical contact surface 334. The storage medium, the first electrical contact surface 331, the ground electrical contact surface 332, the third electrical contact surface 333, and the fourth electrical contact surface 334 are all fixedly disposed on the substrate 32b. The storage medium is fixedly disposed on the lower surface of the substrate 32b, and the first electrical contact surface 331, the ground electrical contact surface 332, the third electrical contact surface 333, and the fourth electrical contact surface 334 are fixedly disposed on the upper surface of the substrate 32b.

[0255] The developing cartridge 1 also has a second chip 39. The control module is located on the second chip 39, which serves as the control component. The fourth conductive part 438 is electrically connected to the second chip 39. A wire 38 is provided between the second chip 39 and the first chip 32. One end of the wire 38 is electrically connected to the second chip 39, and the other end is electrically connected to the grounding contact surface 332 on the first chip 32. Two battery mounting parts are provided on the lower surface of the second chip 39. The battery mounting parts are used to install batteries 393 that supply power to the second chip 39. Each battery mounting part includes a conductive surface electrically connected to the second chip 39 and a retainer 392. Both the conductive surface and the retainer 392 are fixedly disposed on the lower surface of the second chip 39. The retainer 392 is made of metal, and a receiving space is formed between the retainer 392 and the lower surface of the second chip 39. The conductive surface is disposed within the receiving space and is used to contact the positive terminal of the battery 393. The retainer 392 is used to contact the negative terminal of the battery 393.

[0256] The lower surface of the second chip 39 is fixedly provided with a seventh electrical contact surface 394, which is used to contact and electrically connect with the fourth conductive part 438.

[0257] The second chip 39 also includes an insulating member 6, which is located between the battery 393 and the conductive surface, thereby blocking the electrical connection between the battery 393 and the conductive surface. In this embodiment, the insulating member 6 is preferably a plastic sheet. One end of the insulating member 6 is inserted between the battery 393 and the conductive surface, and the other end is provided with a pull ring 61 for easy removal by the user.

[0258] In this embodiment, the second chip 39 is rectangular, and mounting holes 391 are provided at the right front corner and the left rear corner of the second chip 39. The mounting holes 391 are circular through holes.

[0259] The first end 11 is also provided with a first cover 111. The first cover 111 is used to cover the transmission component at the first end of the box to protect the transmission component. The first cover 111 is provided with a mounting groove 1118, and the mounting groove 1118 is used to install the chip bracket 31.

[0260] The chip support 31 includes a chip support portion and a cover portion. The chip support portion has a chip support groove 311 formed by a downward indentation. A connecting hole 313 is provided on the bottom surface of the chip support groove 311, and the wire 38 is connected to the chip through the connecting hole 313. The cover portion extends to the left from the chip support portion and is used to cover the mounting groove 1118. The cover portion and the mounting groove 1118 enclose a mounting space. The second chip 39 is installed in the mounting space and covered by the cover portion, thereby protecting the second chip 39. The covering portion includes a cover plate 314, which extends in a first direction and covers the second chip 39 in the vertical direction. Two downwardly protruding mounting posts 3142 are fixedly disposed on the lower surface of the cover plate 314. Each mounting post 3142 corresponds to a mounting hole 391. When viewed from below, the circumferential surface of the mounting posts 3142 is semi-circular. A downwardly protruding elastic post 3143 is also disposed on one side of the cover plate 314. A mounting protrusion 3144 is disposed at the lower end of the elastic post 3143. The mounting protrusion 3144 includes a mounting bracket. An inclined surface 3145 is installed, with its inclination direction set such that the end furthest from the mounting post 3142 is positioned higher than the end closest to the mounting post 3142. Furthermore, the distance from the end of the inclined surface 3145 furthest from the mounting post 3142 to the center of the circumference of the mounting post 3142 is greater than the radius of the mounting hole 391. The distance from the end of the inclined surface 3145 furthest from the mounting post 3142 to the center of the circumference of the mounting post 3142 is also greater than the radial distance from the end of the elastic post 3143 furthest from the mounting post 3142 to the center of the circumference of the mounting post 3142. This results in a support surface forming on the mounting protrusion 3144 that protrudes radially from the sidewall of the elastic post 3143. When the second chip 39 is installed on the cover plate 314, the mounting hole 391 is aligned and pressed with the mounting post 3142 and the elastic post 3143, so that the circumferential surface of the mounting hole 391 contacts and presses the mounting inclined surface 3145. This causes the mounting inclined surface 3145 to drive the elastic post 3143 to bend towards the mounting post 3142, resulting in elastic deformation. After the mounting hole 391 passes the mounting protrusion 3144, the mounting inclined surface 3145 no longer abuts against the mounting hole 391. As a result, the elastic post 3143 returns to its original shape in the direction away from the mounting post 3142, so that the supporting surface on the mounting protrusion 3144 abuts against the lower surface of the second chip 39, thereby supporting the second chip 39 between the supporting surface and the cover plate 314, completing the positioning of the second chip 39 in the vertical direction.

[0261] The mounting post 3142 is fitted into the mounting hole 391. This allows the outer circumferential surface of the mounting post 3142 to fit against the inner circumferential surface of the mounting hole 391 when the mounting post 3142 and the elastic post 3143 are inserted into the mounting hole 391 together, thereby positioning the second chip 39 in the left-right and front-back directions.

[0262] The cover plate 314 is also fixedly provided with a mounting buckle 3141, which is used to engage with the snap-fit ​​part 1119 on the first cover 111, so that the cover plate 314 is fixed relative to the first cover 111.

[0263] The insulating component 6 extends from inside the installation space to outside the space, and the pull ring 61a is located outside the installation space for easy removal by the user. Before installing the developing cartridge 1 into the image forming apparatus, the user pulls the pull ring 61a to pull out the insulating component 6, so that the battery 393 is electrically connected to the conductive surface, thereby enabling the battery 393 to supply power to the second chip 39, allowing the second chip 39 to start working normally.

[0264] The structures described in the above embodiments can be used in combination or individually.

[0265] In summary, the above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the content of the specification; all equivalent variations and modifications of the shape, structure, features, and spirit described in the claims of this application should be included within the scope of the claims.

Claims

1. A developing cartridge, detachably mounted into an image forming apparatus, characterized in that, The developing cartridge includes: A housing for containing developer, the housing having a first end and a second end disposed opposite to each other in a first direction, and a third end and a fourth end disposed opposite to each other in a second direction intersecting the first direction; The developing roller, located at the third end, is rotatable about a first axis extending in a first direction; A drive unit, located at the first end, is capable of rotating about a second axis extending in a first direction; A conductive component includes an electrical receiving part and a grounding conductive element. The electrical receiving part is located at the second end and is used to receive a potential provided by the image forming apparatus. The grounding conductive element is disposed on the housing and is used to be electrically connected to the grounding element of the image forming apparatus. A control component is disposed between the electrical receiving unit and the grounding conductive element, for controlling the electrical connection between the electrical receiving unit and the grounding conductive element, thereby generating an electrical signal for identifying the information of the developing cartridge.

2. A developing cartridge according to claim 1, characterized in that, The conductive component further includes a movable part that is movable between a contact position and a separation position. When the movable part is in the contact position, the electrical receiving part is electrically connected to the grounding conductive element or the grounding conductive element extends. When the movable part is in the separation position, the electrical receiving part is not electrically connected to the grounding conductive element or the grounding conductive element retracts. The control component is used to control the movement of the movable part between the contact position and the separation position.

3. A developing cartridge according to claim 2, characterized in that, The control component includes a control protrusion that moves following the drive unit, and a movable part that moves between a contact position and a separation position as the control protrusion moves.

4. A developing cartridge according to claim 3, characterized in that, The control assembly further includes a rotating member or a translating member, which rotates or translates in accordance with the rotation of the drive unit, and the control protrusion moves in accordance with the rotating member or the translating member.

5. A developing cartridge according to claim 4, characterized in that, It also includes a transmission gear that transmits power from the drive unit to the rotating or translating member.

6. A developing cartridge according to claim 2, characterized in that, The movable part is disposed on the grounding conductive element, and the movable part is in contact with the grounding element.

7. A developing cartridge according to claim 6, characterized in that, The grounding conductive element moves relative to the box body.

8. A developing cartridge according to claim 2, characterized in that, The conductive component further includes a first conductive element and a second conductive element. The first conductive element is located at the second end and is provided with the electrical receiving portion. The second conductive element is at least partially located between the first end and the second end, and the first end is closer to the movable portion than the second end.

9. A developing cartridge according to claim 8, characterized in that, The conductive component further includes an intermediate conductive element, which and the grounding conductive element are located at the first end, and the intermediate conductive element is electrically connected to the first conductive element through the second conductive element.

10. A developing cartridge according to claim 8, characterized in that, It also includes a powder feeding roller and a powder discharging blade, which are in contact with the developing roller. The second conductive element is at least one of the powder discharging blade, the roller shaft of the developing roller, or the roller shaft of the powder feeding roller.

11. A developing cartridge according to claim 9, characterized in that, It also includes a first chip, which includes a storage medium and a grounding electrical contact surface. The storage medium stores the developer cartridge information, and the grounding electrical contact surface is electrically connected to the grounding conductive element. The grounding electrical contact surface is located at the first end.

12. A developing cartridge according to claim 11, characterized in that, The control component further includes a movable member that moves according to the movement of the drive unit, and the movable member drives the movable unit to move between a contact position and a separation position.

13. A developing cartridge according to claim 12, characterized in that, The intermediate conductive member is mounted on the movable member and is electrically connected to the electrical receiving part. The intermediate conductive member has the movable part located at the free end of the movable member. The grounding conductive member is electrically connected to the grounding electrical contact surface. When the movable member is in the contact position, the movable part is in contact with and electrically connected to the grounding conductive member. When the movable member is in the separation position, the movable part is separated from the grounding conductive member and the electrical connection is broken.

14. A developing cartridge according to claim 13, characterized in that, The movable component includes a movable pivot and an extension arm. The movable pivot has a movable hole that rotatably engages with a movable support on the housing. The extension arm extends radially from the circumferential surface of the movable pivot and has a positioning engagement part at its free end. The intermediate conductive component is a conductive torsion spring, which includes a main body, a conductive part, and the movable part. The main body is sleeved on the movable pivot, the conductive part is electrically connected to the electrical receiving part, and the movable part is fixed on the positioning engagement part.

15. A developing cartridge according to claim 13, characterized in that, The movable component further includes a movable guide portion having a guide surface, and the control component further includes a rotating component having a control protrusion that cooperates with the guide surface to drive the movable component to rotate between a contact position and a separation position.

16. A developing cartridge according to claim 13, characterized in that, The grounding conductive component includes a chip holder made of conductive material. The chip holder includes a chip support portion and a conductive extension portion. The first chip is mounted on the chip support portion, and the grounding electrical contact surface is electrically connected to the chip support portion. The conductive extension portion cooperates with the movable portion.

17. A developing cartridge according to claim 16, characterized in that, The first chip includes a substrate, and the grounding conductive component further includes a chip holder. The chip holder is made of a conductive material and is fixedly disposed on the lower surface of the substrate and electrically connected to the grounding contact surface. The chip holder is electrically connected to the chip support.

18. A developing cartridge according to claim 1, characterized in that, The control component is a second chip, which includes a power supply and a control module. The control module is used to control the electrical connection or non-electrical connection between the electrical receiving part and the grounding conductive part, and the power supply provides power to the control module.

19. A developing cartridge according to claim 18, characterized in that, It also includes a first chip, which includes a grounding electrical contact surface located at the first end, the grounding electrical contact surface being electrically connected to the electrical receiving part, and the grounding electrical contact surface being in contact with the grounding element of the image forming apparatus.

20. A developing cartridge according to claim 18, characterized in that, The power supply component is a battery, and the second chip further includes a switch or an insulator. The switch or insulator is disposed between the power supply component and the control module and is used to control the electrical connection and non-electrical connection between the battery and the control module.

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