A developing cartridge and a power receiving member

Abstract

The utility model discloses an embodiment provides a kind of developing box and power receiving piece, it is related to imaging field.Developing box, detachably installed in the equipment main body of the imaging equipment with drum assembly, drum assembly includes photosensitive drum, developing box includes: developing frame;Developing roller, rotatably supported on developing frame;And support piece, support piece is at least partially fixedly connected with developing frame, when developing box is installed in equipment main body, support piece and equipment main body act to make developing box be positioned on the contact position of developing roller and photosensitive drum contact.The utility model keeps contact by support piece to realize developing roller and photosensitive drum, developing box only has the contact position of developing roller and photosensitive drum contact after installation, does not have the separation position of developing roller and photosensitive drum separation, so that the relative position of developing box and drum assembly keeps stable, is favorable for developing roller and photosensitive drum to keep good contact, so that developing work stably carries out, improve printing quality or developing quality.

Description

Technical Field

[0001] This utility model relates to the field of imaging, and in particular to a developing cartridge and a power receiving device. Background Technology

[0002] Imaging devices form images on recording media. Examples of imaging devices include electronic copiers, electrophotographic printers (e.g., laser beam printers, LED printers, etc.), fax machines, word processors, etc. Imaging devices include a developing cartridge that uses a developer to develop the electrostatic latent image on a photosensitive drum. The developing cartridge has a developing roller rotatably supported within its housing, and development is performed by supplying toner stored within the housing from the developing roller to the photosensitive drum.

[0003] CN106597825B discloses a processing box, such as Figures 1 to 2 As shown, the electronic imaging device P also includes a detection device PD1 and a trigger switch SW1 for the detection device PD1 to perform detection operations. A pusher F103 is provided on the processing box guide rail F100, and the pusher F103 is preferably located on the driving side of the electronic imaging device P (see reference). Figure 1 The guide rail structure shown is located on the processing box guide rail F100 (the guide rail near the drive head 900). When the processing box guide rail F100 is pushed and rotates clockwise relative to the photosensitive component guide rail F200 around the rotation point F101, the push block F103 of the processing box guide rail F100, which rotates together with it, touches the trigger switch SW1, causing the detection device PD1 to detect and generate a signal that the trigger switch SW1 has been turned on. When the processing box guide rail F100 is pulled by the traction member F120 and rotates counterclockwise relative to the photosensitive component guide rail F200 around the rotation point F101, and returns to its initial position before rotation, the push block F103 no longer touches the trigger switch SW1, and the trigger switch SW1 is turned off, and the detection device PD1 generates a signal that the trigger switch SW1 has been turned off.

[0004] In this way, the signal obtained by the detection device PD1 enables the electronic imaging device P to detect whether the processing cartridge installed by the user is compatible with the electronic imaging device P. A detection signal is generated: "On-Off" or "On-Off-On-Off". If the user-installed processing cartridge can complete the above detection steps and generate the corresponding detection signal with the electronic imaging device P, the electronic imaging device P automatically determines that the user has installed a matching processing cartridge, and displays that the detection step is complete, allowing the user to proceed with normal development (printing). If the detection step cannot be completed, such as only generating a detection signal of "On" or "Off", the electronic imaging device P displays that the detection step is incomplete, and normal development (printing) cannot be performed.

[0005] CN117706891A discloses yet another developing cartridge and imaging device, which includes an installation testing device, similar in principle to CN106597825B. Figure 3 and Figure 5 The installation and testing device includes a swing guide (drive-side swing guide 80 / non-drive-side swing guide 81, the drive-side swing guide 80 is similar to the processing box guide rail F100) and a pressing component (drive-side device pressing component 150 / non-drive-side device pressing component 151). The drive-side swing guide 80 / non-drive-side swing guide 81 is installed in the imaging device through a connecting rod, and the drive-side swing guide 80 / non-drive-side swing guide 81 can swing within the imaging device with the connecting rod as the center.

[0006] When the developing cartridge is installed into the imaging device, the pressing component (driving-side device pressing component 150 / non-driving-side device pressing component 151) is triggered by the closing of the imaging device door and moves in the N7 direction (see N7 direction). Figure 5 (c)), and contacts the drive-side contact / spacer and the non-drive-side contact / spacer 72, wherein the first contact surface 70a of the drive-side contact / spacer receives force F11 from the second contact surface 150b of the drive-side device pressing member 150. Figure 4 (c) so that a torque balanced with torque M10 acts on the drive-side contact / spacer. Therefore, the external force F11 acts on the developing cartridge, thereby driving the developing cartridge to move toward the drum assembly, so that the developing roller contacts the photosensitive drum.

[0007] Subsequently, the imaging equipment performs an installation test (i.e., machine recognition) on the developing cartridge. The drive-side pressing component 150 moves the drive-side contact / spacer rod in the N8 direction (see N8 direction for details). Figure 5 (c) The drive-side contact / spacer rod drives the developing cartridge to move away from the drum assembly. The drive-side positioning part / non-drive-side positioning part (not shown in the figure) on the developing cartridge is positioned by the positioning part on the drive-side swing guide 80 / non-drive-side swing guide 81. Therefore, the developing cartridge cooperates with the drive-side swing guide 80 / non-drive-side swing guide 81 to drive the drive-side swing guide 80 to swing clockwise (N5 direction) and cooperate with other structures of the imaging equipment to complete the installation test of the developing cartridge (similar to the test steps of CN106597825B, there is a trigger switch on the imaging equipment, which generates a corresponding test signal when touched by the drive-side swing guide 80).

[0008] After the installation and testing are completed, the drive-side pressing member 150 drives the drive-side contact / spacer rod to reset in the N7 direction, and the developing cartridge returns to the contact position where the developing roller contacts the photosensitive drum. Simultaneously, the drive-side bias unit 76 (similar to the traction member F120) is positioned between the protrusion 80h of the drive-side swing guide 80 and the protrusion 90d of the drive-side side plate 90, as described above along arrow N12 (…). Figure 4 (a) directional bias. Therefore, the external force F12 along the direction of arrow N12 acts on the developing cassette positioned by the drive-side swing guide 80, and thus, under the action of the drive-side bias unit 76, the drive-side swing guide 80 swings back counterclockwise (in the N6 direction).

[0009] The recognition process is achieved by the movement of the developing cartridge between the separation position and the contact position. During the recognition process, the developing roller moves with the developing cartridge once or multiple times. The shaking of the developing cartridge or the movement of the developing roller may cause inaccurate positioning when the developing cartridge returns to the contact position after the recognition is completed, resulting in poor contact between the developing roller and the photosensitive drum, which may lead to printing abnormalities.

[0010] Furthermore, during the movement of the developing cartridge between the separation and contact positions, the driving head of the imaging device and the driving assembly of the developing cartridge undergo repeated engagement and disengagement. This can easily lead to wear or breakage of the driving head of the imaging device or the driving assembly of the developing cartridge, making it difficult or impossible for the driving head and driving assembly to stably engage and transmit power. As a result, the imaging device or developing cartridge cannot continue to be used normally, and the subsequent developing quality will be affected to varying degrees. Utility Model Content

[0011] This utility model provides a developing cartridge and a power receiving component to solve the problem that during the recognition process, the developing roller moves with the developing cartridge once or multiple times. The shaking of the developing cartridge or the movement of the developing roller may cause inaccurate positioning when the developing cartridge returns to the contact position after recognition is completed, resulting in poor contact between the developing roller and the photosensitive drum, which may lead to printing abnormalities or affect the developing quality.

[0012] In a first aspect, embodiments of the present invention provide a developing cartridge, detachably mounted in the main body of an imaging device with a drum assembly, the drum assembly including a photosensitive drum, and the developing cartridge comprising:

[0013] Developing frame;

[0014] The developing roller is rotatably supported on the developing frame; and

[0015] A support member, at least partially fixedly connected to the developing frame, is configured to act with the device body when the developing cartridge is installed in the device body, such that the developing cartridge is positioned at the contact position where the developing roller contacts the photosensitive drum.

[0016] In one possible implementation, the support includes a first support, which is a magnetic element that generates an attractive force with the metal part of the device body, thereby positioning the developing cartridge at the contact position where the developing roller contacts the photosensitive drum.

[0017] In one possible implementation, the support member includes at least one second support member or at least one third support member. Both the second and third support members include a fixed part, an elastic member, and a movable part. The fixed part is fixedly connected to the developing frame. The movable part is elastically connected to the fixed part through the elastic member. The movable part abuts against the guide part of the device body. The elastic member is compressed, and the elastic force of the elastic member is used to position the developing cartridge at the contact position where the developing roller contacts the photosensitive drum.

[0018] In one possible implementation, the support includes at least one third support, the bottom of which forms a hook for hooking the bottom of the metal plate at the laser port of the device body, the hook protruding from the developing frame.

[0019] In one possible implementation, the support member includes at least one third support member, which includes a connecting portion, a positioning portion, and a deformable portion. The connecting portion is fixedly connected to the developing frame, the positioning portion is used to abut against the positioned portion of the device body, and the deformable portion has a connecting end and a free end. The connecting end is fixedly connected to the connecting portion and the positioning portion, respectively, and the free end is used to abut against the abutted portion of the device body. The deformable portion deforms under the action of the abutted portion, and the elastic force of the deformable portion is used to position the developing cartridge at the contact position where the developing roller contacts the photosensitive drum.

[0020] In one possible implementation, a bushing is also included, wherein the developing frame has a bushing hole, the bushing is fixedly installed in the bushing hole, and the end of the developing roller is rotatably installed in the bushing.

[0021] In one possible implementation, it further includes a drive gear and a power receiver, the drive gear being rotatably supported on the developing frame, and the power receiver being drive-connected to the drive gear.

[0022] The power receiver has a first state and a second state. When the power receiver is in the first state, it interferes with the drive head of the imaging device and is pushed to move in the opposite direction to the installation direction. When the power receiver is in the second state, it cannot move in the opposite direction to the installation direction.

[0023] In one possible implementation, a movable member is further included, which is movably disposed on the developing frame. The movable member is used to receive the force movement of the imaging device. The developing frame is provided with an abutting portion that abuts against the movable member. When the movable member moves along the abutting portion, when viewed along the axis of the developing roller, the rotation center of the movable member does not overlap with the powder hopper of the developing frame.

[0024] In one possible implementation, a first movable member is also included. The developing frame includes a driving-side developing cover disposed on the driving side of the developing cartridge. The first movable member is slidably disposed on the driving-side developing cover. The first movable member includes a gravity block. When the developing cartridge interacts with the installation detection device of the main body of the equipment, the first movable member is reset to the non-recognition position under the gravity of the gravity block.

[0025] Secondly, this utility model embodiment provides a power receiver for receiving the driving force of the driving head of an imaging device and applying it to the developing cartridge described in the first aspect. When the power receiver of the developing cartridge is in a first state, the driving head interferes with the power receiver and pushes the power receiver to move in the opposite direction to the installation direction of the developing cartridge.

[0026] This utility model provides a developing cartridge and a power receiving component. The developing roller and the photosensitive drum are kept in contact by a support component. After installation, the developing cartridge only has a contact position where the developing roller and the photosensitive drum can contact each other, and does not have a separation position where the developing roller and the photosensitive drum can separate. This makes the relative position of the developing cartridge and the drum assembly stable, which is conducive to maintaining good contact between the developing roller and the photosensitive drum, so that the developing work can be carried out stably and the printing quality or developing quality can be improved.

[0027] After installation, the developing cartridge only has contact points where the developing roller and the photosensitive drum come into contact. This allows the relative position of the driving head of the imaging device and the driving components of the developing cartridge to remain stable, preventing wear or breakage of the driving head of the imaging device or the driving components of the processing cartridge, thus ensuring that the imaging device or processing cartridge can continue to be used normally. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the detection device of the imaging equipment in the prior art CN106597825B. Figure 1 ;

[0030] Figure 2 A schematic diagram of the detection device of the imaging equipment in the prior art CN106597825B. Figure 2 ;

[0031] Figure 3 A side cross-sectional view of the imaging device in the prior art CN117706891A;

[0032] Figure 4 A side view of the drive-side oscillating guide and the drive side of the developing cartridge in prior art CN117706891A. Figure 1 ;

[0033] Figure 5 A side view of the drive-side oscillating guide and the drive side of the developing cartridge in prior art CN117706891A. Figure 2 ;

[0034] Figure 6 This is a schematic diagram of the installation of the processing box in the prior art CN110673455B. Figure 1 ,in, Figure 6 The diagram illustrates the third guide section located on the drive side;

[0035] Figure 7 This is a schematic diagram of the installation of the processing box in the prior art CN110673455B. Figure 2 ,in, Figure 7 The second guide section located on the non-driving side is shown;

[0036] Figure 8 This is a schematic diagram of the developing cartridge according to Embodiment 1 of this utility model;

[0037] Figure 9 This is a side view of the developing cartridge and drum assembly according to Embodiment 1 of this utility model;

[0038] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0039] Figure 11This is a schematic diagram of the structure of the driving-side developing side cover, the first movable component, and the driving-side developing pressure spring in Embodiment 1 of this utility model.

[0040] Figure 12 This is a schematic diagram of the drive-side developing side cover and the first movable component in Embodiment 2 of this utility model;

[0041] Figure 13 This is a schematic diagram of the structure of the first movable component in Embodiment 2 of this utility model;

[0042] Figure 14 This is a schematic diagram of the drive side of the developing cartridge in Embodiment 3 of this utility model;

[0043] Figure 15 This is a schematic diagram of the developing cassette, drum assembly, and main body of the device on the drive side according to Embodiment 3 of this utility model;

[0044] Figure 16 This is a schematic diagram of the developing cassette, drum assembly, and main body of the device according to Embodiment 3 of this utility model;

[0045] Figure 17 This is a structural schematic diagram of the developing cassette, drum assembly, and main body of the device according to Embodiment 3 of this utility model from another angle;

[0046] Figure 18 This is a schematic diagram of the drive side of the developing cartridge in Embodiment 4 of this utility model;

[0047] Figure 19 This is an exploded view of the drive side of the developing cartridge in Embodiment 4 of this utility model;

[0048] Figure 20 This is a schematic diagram of the structure of the developing cassette and drum assembly installed behind the main body of the equipment in Embodiment 5 of this utility model;

[0049] Figure 21 This is an exploded perspective view of the developing cassette, drum assembly, drive-side oscillating guide, and non-drive-side oscillating guide of Embodiment 5 of the present invention.

[0050] Figure 22 This is a schematic diagram of the structure of the developing cartridge, photosensitive drum, and metal plate of the main body of the device in Embodiment 5 of this utility model;

[0051] Figure 23 This is a schematic diagram of the structure of the developing cassette, photosensitive drum, and the metal plate drive side of the main body of the device in Embodiment 5 of this utility model;

[0052] Figure 24 This is a schematic diagram of the structure of the first movable component in Embodiment 5 of this utility model;

[0053] Figure 25This is a schematic diagram of the structure of the first movable component, the driving-side developing cover, and the driving-side developing pressure spring in Embodiment 5 of this utility model;

[0054] Figure 26 This is a schematic diagram of the structure of the non-driving side developing cover of Embodiment 5 of this utility model;

[0055] Figure 27 This is a schematic diagram of the structure of the developing cartridge and the metal plate of the main body of the device according to Embodiment Six of this utility model;

[0056] Figure 28 This is an exploded view of the developing container and support of the developing cartridge in Embodiment Six of this utility model;

[0057] Figure 29 This is a schematic diagram of the developing cartridge of Embodiment Seven of this utility model;

[0058] Figure 30 This is a schematic diagram of the structure of the driving-side developing side cover, the first movable component, the pushing receiving block, and the pushing elastic element in Embodiment 7 of this utility model;

[0059] Figure 31 This is a structural schematic diagram of the first movable component in Embodiment Seven of this utility model;

[0060] Figure 32 This is a schematic diagram of the structure of the driving-side developing side cover, the first movable component, the pushing receiving block, and the pushing elastic element in Embodiment 8 of this utility model;

[0061] Figure 33 This is a schematic diagram of the drive-side developing side cover and the first movable component in Embodiment 9 of this utility model;

[0062] Figure 34 This is a structural schematic diagram of the developing cartridge and part of the main body of the device according to Embodiment 10 of this utility model;

[0063] Figure 35 This is a schematic diagram of the structure of a part of the developing container and the support member in the uninstalled state of Embodiment 10 of this utility model;

[0064] Figure 36 This is a schematic diagram of the structure of a part of the developing container and the support member after installation, according to Embodiment 10 of this utility model;

[0065] Figure 37 This is a structural schematic diagram of the developing cartridge at one angle according to Embodiment Eleven of this utility model;

[0066] Figure 38 This is a structural schematic diagram of the developing cartridge of Embodiment Eleven of this utility model from another angle;

[0067] Figure 39This is a partially exploded view of the developing cartridge drive end of Embodiment Eleven of this utility model;

[0068] Figure 40 This is a schematic diagram of the conductive end cap and electrode in Embodiment Eleven of this utility model;

[0069] Figure 41 This is a schematic diagram of the drive gear in Embodiment Eleven of this utility model;

[0070] Figure 42 This is a schematic diagram of the power receiving component according to Embodiment Eleven of this utility model;

[0071] Figure 43 This is a cross-sectional view of the driving component according to Embodiment Eleven of this utility model;

[0072] Figure 44 This is a schematic diagram of the drive end cover of Embodiment Eleven of this utility model;

[0073] Figure 45 This is a partially exploded schematic diagram of the driving end of a modified example of Embodiment Eleven of this utility model;

[0074] Figure 46 This is a cross-sectional view of the driving end of a modified embodiment eleven of this utility model;

[0075] Figure 47 This is a cross-sectional view of the driving end of Embodiment Eleven of this utility model;

[0076] Figure 48 This is a side view of the developing cartridge when the power receiving component of Embodiment Eleven of this utility model is in the first state;

[0077] Figure 49 This is a cross-sectional view of the developing cartridge when the power receiving component of Embodiment Eleven of this utility model is in the first state;

[0078] Figure 50 This is a side view of the developing cartridge when the power receiving component of Embodiment Eleven of this utility model is in the second state;

[0079] Figure 51 This is a cross-sectional view of the developing cartridge when the power receiving component of Embodiment Eleven of this utility model is in the second state;

[0080] Figure 52 This is a cross-sectional view of the developing cartridge drive end of Embodiment Twelve of this utility model;

[0081] Figure 53 This is a schematic diagram of the support base according to Embodiment Twelve of this utility model;

[0082] Figure 54 This is a schematic diagram of the drive gear in Embodiment Twelve of this utility model;

[0083] Figure 55 This is a cross-sectional view of the developing cartridge when the power receiving component of Embodiment Twelve of this utility model is in the first state;

[0084] Figure 56 This is a cross-sectional view of the developing cartridge when the power receiving component of Embodiment Twelve of this utility model is in the second state;

[0085] Figure 57 This is an exploded view of the driving component according to Embodiment Thirteen of this utility model;

[0086] Figure 58 This is a schematic diagram of the drive gear in Embodiment Thirteen of this utility model;

[0087] Figure 59 This is a schematic diagram of the drive end cover of Embodiment Thirteen of this utility model;

[0088] Figure 60 This is a schematic diagram of the slider seat according to Embodiment Thirteen of this utility model;

[0089] Figure 61 This is a schematic diagram of the slider structure of Embodiment Thirteen of this utility model;

[0090] Figure 62 A cross-sectional view of the developing cartridge when the power receiving component of Embodiment Thirteen of this utility model is in the first state. Figure 1 ;

[0091] Figure 63 A cross-sectional view of the developing cartridge when the power receiving component of Embodiment 13 of this utility model is in the first state. Figure 2 ;

[0092] Figure 64 A cross-sectional view of the developing cartridge when the power receiving component of Embodiment 13 of this utility model is in the second state. Figure 1 ;

[0093] Figure 65 A cross-sectional view of the developing cartridge when the power receiving component of Embodiment 13 of this utility model is in the second state. Figure 2 ;

[0094] Figure 66 This is a structural schematic diagram of the developing cartridge at one angle according to Embodiment Fourteen of the utility model;

[0095] Figure 67 This is a structural schematic diagram of the developing cartridge of Embodiment Fourteen of the utility model from another angle;

[0096] Figure 68 This is a schematic diagram of the drive end cap, contact component, and buffer component at an angle according to embodiment fourteen of the utility model.

[0097] Figure 69 This is a schematic diagram of the drive end cap, contact component, and buffer component from another angle in embodiment fourteen of the utility model.

[0098] Figure 70 This is a schematic diagram of the drive end cap and the contact component from another angle in Embodiment Fourteen of the utility model;

[0099] Figure 71 This is a structural schematic diagram of the first movable member in Embodiment Fourteen of the utility model;

[0100] Figure 72 This is a schematic diagram of the conductive end cap and contact assembly according to Embodiment Fourteen of the utility model;

[0101] Figure 73 This is a schematic diagram of the angle between the drive end cap and the contact component in Embodiment 15 of the utility model;

[0102] Figure 74 This is a schematic diagram of the drive end cap and contact component from another angle in embodiment fifteen of the utility model;

[0103] Figure 75 This is a schematic diagram of the drive end cover of embodiment 15 of the utility model;

[0104] Figure 76 This is a structural schematic diagram of the first movable member in Embodiment 15 of the utility model;

[0105] Figure 77 This is a schematic diagram of the developing cartridge at one angle according to Embodiment Sixteen of the utility model. The conductive end cap is omitted in the figure.

[0106] Figure 78 This is a structural schematic diagram of the developing cartridge of Embodiment Sixteen of the utility model from another angle, with the conductive end cap omitted in the figure.

[0107] Explanation of reference numerals in the attached figures:

[0108] A1 - Equipment body; 92c - Third guide section; 93b - Second guide section; 95 - Metal plate; 95a - Side slope; 95b - Bottom; 80 - Drive-side swing guide; 81 - Non-drive-side swing guide;

[0109] C-Drum assembly; 21-Drum frame; 10-Photosensitive drum;

[0110] B - Developing cassette; 16 - Developing container; 16c - Bushing hole; 16c1 - Mounting and positioning port; 16d - Bushing; 16d1 - Radial protrusion; 180 - Connecting member; 29 - Developing roller gear; 34 - Drive-side developing side cover; 34a - Slide groove; 46 - Non-drive-side developing side cover; 13 - Developing roller; 16a - First support member; 34i - Second support member; 34i1 - Second fixing part; 34i11 - Third opening; 34i2 - Second elastic member ; 34i3-Second movable part; 34i31-Second limiting part; 120-First movable component; 71-Drive-side developing pressure spring; 70-Drive-side detection component; 34b-Drive-side positioning part; 120a-Gravity block; 51-Power receiving component; 52-Drive gear; 53-Developing gear; 54-Stirring gear; 14-Drive end cover; 141-First annular protrusion; 142-Sliding hole; 143-First limiting wall; 144-Second limiting wall;

[0111] 16b - Mating part; 16a1 - Hook part; 16a2 - Fixing part; 16a21 - Snap-fit ​​part; 16a22 - Sliding hole; 16a23 - First opening; 16a24 - Second opening; 16a3 - Elastic element; 16a4 - Movable part; 16a41 - Abutting slope; 16a42 - Limiting part; 46b - Non-driving side positioning part; 34c - Driving side rotation stop; 46c - Non-driving side rotation stop; 41 - Electrode contact;

[0112] 160a - Third support member; 16a5 - Connecting part; 16a6 - Positioning part; 16a7 - Deformation part; 16a71 - Connecting end; 16a72 - Free end; 16a8 - Extension part; 16a9 - Tip; 120b - Pushing part; 420 - Pushing receiving block; 410 - Pushing elastic member; 510 - First magnet; 520 - Second magnet; 530 - Third magnet;

[0113] A1a - Positioned part; A1b - Abutted part;

[0114] 150-Pressure component; 210-Box body; 211-Support part; 214-Third rotating shaft; 215-Clearing part; 241-Reset part; 242-Pushing part; 251-First connecting part; 252-Arm part; 254-First rod part; 255-First mating part; 256-Detection part; 260-First elastic element; 270-Second movable component; 271-Second connecting part; 272-Second rod part; 273-Second mating part; 274-Fifth connecting block; 513-Sliding part; 2121-Second rotating shaft; 2122-Sixth connecting block; 2131-First rotating shaft; 2132-First abutting part; 2132a-First abutting part Surface; 2133-First connecting block; 2134-Support shaft; 2135-Fourth connecting block; 2136-Second abutting part; 2136a-Third abutting surface; 2421-First support rod; 2422-Second support rod; 2422a-Pushing protrusion; 2423-Third connecting block; 2521-First support arm; 2521a-Pushing protrusion; 2522-Second support arm; 2522a-Fourth abutting surface; 2531-Second abutting surface; 2532-Second connecting block. Detailed Implementation

[0115] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0116] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0117] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0118] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0119] In the above description, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0120] As described in the background section, the recognition process is achieved by the movement of the developing cartridge between the separation position and the contact position. During the recognition process, the developing roller moves with the developing cartridge once or multiple times. The shaking of the developing cartridge or the movement of the developing roller may cause inaccurate positioning when the developing cartridge returns to the contact position after the recognition is completed, resulting in poor contact between the developing roller and the photosensitive drum, which in turn leads to printing abnormalities.

[0121] Furthermore, during the movement of the developing cartridge between the separation and contact positions, the driving head of the imaging device and the driving assembly of the developing cartridge undergo repeated engagement and disengagement. This can easily lead to wear or breakage of the driving head of the imaging device or the driving assembly of the developing cartridge, making it difficult or impossible for the driving head and driving assembly to stably engage and transmit power. As a result, the imaging device or developing cartridge cannot continue to be used normally, and the subsequent developing quality will be affected to varying degrees.

[0122] To address the aforementioned problems, this utility model provides a developing cartridge and a power receiving component. The developing cartridge is equipped with a support component, which ensures that the developing roller and the photosensitive drum remain in contact. After installation, the developing cartridge only has a contact position where the developing roller and the photosensitive drum contact each other, and does not have a separation position where the developing roller and the photosensitive drum separate. This allows the relative position between the developing cartridge and the drum assembly to remain stable, and also allows the relative position between the driving head of the imaging device and the driving component of the developing cartridge to remain stable.

[0123] The following describes in detail a developing cartridge provided by this utility model in conjunction with specific embodiments.

[0124] Example 1

[0125] See Figures 8 to 11 This utility model discloses a developing cartridge B, which is detachably installed in the main body A1 of an imaging device with a drum assembly C. The main body A1 of this embodiment can be the same as the main body in CN117706891A. The main body A1 is equipped with the installation detection device in CN117706891A. Specifically, the specific arrangement of the swing guide (drive-side swing guide 80 / non-drive-side swing guide 81), pressing member (drive-side device pressing member 150 / non-drive-side device pressing member 151), and drive-side bias unit 76 is as described in the prior art, and the detection principle of the installation detection device is similar to that in CN106597825B, and will not be repeated here.

[0126] The drum assembly C of this embodiment includes a drum frame 21, a photosensitive drum 10, and a charging roller (not shown in the figure). The photosensitive drum 10 and the charging roller are rotatably supported on the drum frame 21 about the length of the drum assembly C.

[0127] The developing cartridge B in this embodiment includes a developing frame, a developing roller 13, a stirring rack (not shown in the figure), and a driving assembly. The two ends of the developing cartridge B along its length are a driving side and a non-driving side, respectively. The driving side is equipped with a driving assembly to receive driving force from the device body A1, while the non-driving side does not receive driving force from the device body A1. The driving assembly includes a connecting member 180, a driving input gear, a developing roller gear 29, etc. The connecting member 180 receives driving force from the device body A1 and transmits it to the developing roller gear 29 through the driving input gear, causing the developing roller gear 29 to rotate the developing roller 13. The developing frame includes a developing container 16 and developing side covers fixedly disposed at the ends of the developing container 16. The developing side covers include a driving side developing side cover 34 disposed on the driving side of the developing cartridge B and a non-driving side developing side cover 46 disposed on the non-driving side of the developing cartridge B. The developing container 16 is used to store developer. The developing roller 13 and the stirring rack are rotatably supported on the developing container 16 about the length of the developing cartridge B. The stirring rack is used to stir the developer in the developing container 16 and transport it in the direction of the developing roller 13.

[0128] In this embodiment, after the developing cartridge B is installed, the developing cartridge B does not move or basically does not move relative to the drum assembly C, and the developing roller 13 and the photosensitive drum 10 are always in contact, that is, the developing roller 13 and the photosensitive drum 10 will not be separated or separated.

[0129] In this embodiment, a support member is used to position the developing cartridge B at the contact position where the developing roller 13 and the photosensitive drum 10 are in contact. In this embodiment, the support member includes a first support member 16a, which is a magnetic member. The magnetic member and the metal part of the main body A1 attract the developing cartridge B to the contact position where the developing roller 13 and the photosensitive drum 10 are in contact.

[0130] Specifically, in this embodiment, the first support member 16a is disposed at the bottom of the developing frame and near one end of the developing roller 13, i.e., in the front-rear direction, the first support member 16a is located at the front end, i.e., the end facing N7, and is located below the developing roller 13. The position of the device body A1 facing the first support member 16a has a metal part (the metal part is a metal crossbar structure with a cross section of approximately L-shape, and its length is basically equivalent to the length of the developing frame), which can generate a suction force F2 between itself and the first support member 16a. The direction of the suction force F2 is approximately towards N7, as long as the suction force F2 has at least a component force that causes the developing roller 13 to move closer to the photosensitive drum 10.

[0131] Preferably, the first support member 16a does not directly contact the main body A1 of the equipment, but is separated by a certain distance to avoid excessive magnetic force affecting the installation and removal of the developing cartridge B. At the same time, it is also beneficial to adjust the magnetic force of the first support member 16a so that the magnetic force can ensure the contact between the developing roller 13 and the photosensitive drum 10.

[0132] The first support member 16a is disposed on the developing frame, specifically on the developing container 16. The installation range of the first support member 16a is related to the influence of the metal parts of the main body A1 of the equipment. In this embodiment, preferably, when viewed from the axial direction of the developing roller, see... Figure 9 and Figure 10 Let L1 be the line connecting the rotation center of the connecting member 180 and the rotation center of the developing roller 13, and L2 be the line connecting the rotation center of the developing roller 13 and the center of the first support member 16a. L1 and L2 form an angle θ, and the value of angle θ is in the range of 15°≤θ≤50°. The first support member 16a is installed within the position range covered by the value of this angle θ, that is, within the range between the dotted lines L21 (θ=15°) and L22 (θ=50°) in the figure.

[0133] Furthermore, in this embodiment, the first support member 16a may be provided in two sets, which are respectively fixed on one side of the developing container 16. One set of the two sets of first support members 16a is close to the driving side, and the other set is close to the non-driving side, so as to help the developing cartridge B maintain balance.

[0134] Furthermore, in this embodiment, the first support member 16a can be a long strip block (such as...). Figure 8 (As shown), it can also be a cylindrical structure.

[0135] In other embodiments, the first support member 16a may be one or more, fixed at other locations of the developing cartridge B, such as the driving-side developing cover 34 and / or the non-driving-side developing cover 46.

[0136] In other embodiments, the first support member 16a may not be a magnetic member, but rather the developing cartridge B may be positioned in a contact position by abutting against other positions of the device body A1.

[0137] In this embodiment, the driving-side developing side cover 34 is provided with a sliding groove 34a. The sliding groove 34a extends in the direction of gravity (i.e., the up and down direction) and the front and back direction (i.e., the N7 and N8 directions). Specifically, the sliding groove 34a is an arc-shaped sliding groove that extends in the N8 direction while also extending upward.

[0138] See Figure 9 , Figure 11 , Figure 13 The developing cartridge B also includes a first movable member 120 and a drive-side developing pressure spring 71. The first movable member 120 is slidably disposed on the drive-side developing cover 34, specifically disposed on the slide groove 34a, thereby being able to move relative to the drive-side developing cover 34 between a non-recognition position and a recognition position. The first movable member 120 includes a drive-side detection member 70 and a drive-side positioning part 34b. The drive-side positioning part 34b is used to interact with the drive-side swing guide 80 of the device body A1 to achieve positioning and recognition. The drive-side detection member 70 is used to receive the force from the drive-side device pressing member 150 and drive the first movable member 120 to move relative to the drive-side developing cover 34 in the slide groove 34a between the recognition position and the non-recognition position. During this process, the drive-side developing cover 34 does not move, the developing cartridge B does not move, and the developing roller 13 does not move relative to the photosensitive drum 10, that is, the developing roller 13 and the photosensitive drum 10 do not separate / gap up. The driving-side developing pressure spring 71 is used to reset the first movable member 120 to the non-recognition position.

[0139] When the drive-side device pressing member 150 moves in the N8 direction and drives the drive-side detection member 70, the first movable member 120 moves in the slide groove 34a in the N8 direction. The drive-side developing pressure spring 71 is stretched, and the drive-side positioning part 34b moves with the first movable member 120, so that the drive-side positioning part 34b interacts with the drive-side swing guide. The drive-side swing guide rotates clockwise (specifically...). Figure 5(b) The swing in the N5 direction triggers a detection signal. Subsequently, the drive-side device pressing member 150 moves in the N7 direction and drives the drive-side detection member 70. Simultaneously, under the deformation recovery action of the drive-side imaging pressure spring 71, the first movable member 120 moves in the slide groove 34a in the N7 direction, causing the first movable member 120 to reset from the recognition position to the non-recognition position. The imaging device recognizes the signal generated by the drive-side swing guide member during one or more swings and thus determines that the installation is complete, i.e., the recognition is achieved.

[0140] In this embodiment, the developing roller 13 and the photosensitive drum 10 are kept in contact by a support component. After installation, the developing cartridge B only has a contact position where the developing roller 13 and the photosensitive drum 10 are in contact, and does not have a separation position where the developing roller 13 and the photosensitive drum 10 are separated. This makes the relative position of the developing cartridge B and the drum assembly C stable, which is conducive to maintaining good contact between the developing roller 13 and the photosensitive drum 10, so that the developing work is carried out stably and the printing quality or developing quality is improved.

[0141] Example 2

[0142] See Figure 12 and Figure 13 The main difference between this embodiment and embodiment one is that a gravity block 120a is used instead of the driving-side development pressure spring 71 to reset the first movable component 120.

[0143] In this embodiment, see Figure 13 The first movable member 120 includes a drive-side detection member 70, a drive-side positioning part 34b, and a gravity block 120a. The gravity block 120a is used to reset the first movable member 120 to the non-recognition position. In this embodiment, in the front-rear direction, the gravity block 120a is located on the side of the first movable member 120 away from the developing roller 13, that is, the gravity block 120a is closer to the N8 direction on the first movable member 120 (relative to the N7 direction). Specifically, the first movable member 120 may have an extension in the N8 direction, and the gravity block 120a is disposed at the end of the extension.

[0144] See Figure 12 When the drive-side device pressing member 150 moves towards N8 and drives the drive-side detection member 70, the first movable member 120 moves upward in the slide groove 34a while moving towards N8. The gravity block 120a also moves upward. The drive-side positioning part 34b moves with the first movable member 120, so that the drive-side positioning part 34b interacts with the drive-side swing guide 80. The drive-side swing guide 80 rotates clockwise (specifically...). Figure 5(b) The swing in the N5 direction triggers a detection signal. Subsequently, the drive-side device pressing member 150 moves in the N7 direction and drives the drive-side detection member 70. Simultaneously, under the gravity of the gravity block 120a, the first movable member 120 moves downward in the slide groove 34a while moving in the N7 direction. Specifically, since the gravity block 120a has stored gravitational potential energy by overcoming gravity and moving upward in the previous movement, the gravitational potential energy of the gravity block 120a is released at this time. Through the shape of the slide groove 34a, the force in the direction of gravity is converted into a force in the front-back direction (specifically the N7 direction), so that the first movable member 120 resets from the recognition position to the non-recognition position. The imaging device recognizes the signal generated by the drive-side swing guide 80 swinging once or multiple times and thus determines that the installation is complete, that is, the recognition is achieved.

[0145] In this embodiment, the gravity block 120a replaces the driving-side developing pressure spring 71 to reset the first movable member 120. With the assistance of the gravity block 120a, the first movable member 120 can accurately return to the non-recognition position, thus avoiding the problem that the driving-side developing pressure spring 71 will plastically deform after repeated use, causing the recognition error and resulting in printing abnormalities.

[0146] Example 3

[0147] See Figures 14 to 17 This embodiment is largely the same as Embodiment 2, except that the support member in this embodiment also includes a second support member 34i, which provides auxiliary support to the first support member 16a.

[0148] In this embodiment, the main body A1 of the device is provided with a guide section. When the developing cartridge B is installed, the second support member 34i moves along the guide section. After the developing cartridge B is installed in place, the second support member 34i abuts against the guide section so that the developing cartridge B is positioned at the contact position where the developing roller 13 and the photosensitive drum 10 are in contact.

[0149] In this embodiment, there are two second support members 34i, which are respectively disposed on the driving side and the non-driving side of the developing cartridge B. Specifically, the two second support members 34i are respectively disposed on the driving side developing side cover 34 and the non-driving side developing side cover 46.

[0150] The two second support members 34i have the same structure. Taking the second support member 34i located on the drive side as an example, please refer to [reference needed]. Figure 14 and Figure 15The second support member 34i includes a second fixed part 34i1, a second elastic member 34i2, and a second movable part 34i3. The second fixed part 34i1 is fixedly connected to the driving-side developing frame. Specifically, the second fixed part 34i1 and the driving-side developing frame can be integrally formed or not integrally formed. The second movable part 34i3 is elastically connected to the second fixed part 34i1 through the second elastic member 34i2. The second movable part 34i3 abuts against the guide part, causing the second elastic member 34i2 to be compressed. The elastic force of the second elastic member 34i2 positions the developing cartridge B at the contact position where the developing roller 13 contacts the photosensitive drum 10.

[0151] The second movable part 34i3 can slide inside the second fixed part 34i1. The two ends of the second elastic member 34i2 abut against the inner wall of the second fixed part 34i1 and the second movable part 34i3, respectively. The second movable part 34i3 is provided with a second limiting part 34i31, which cooperates with the third openings 34i11 on both sides of the second fixed part 34i1 to prevent the second movable part 34i3 from disengaging from the second fixed part 34i1.

[0152] Specifically, the guide section in this embodiment can adopt the guide section in the prior art CN110673455B, see details. Figure 6 and Figure 7 ,in Figure 6 The diagram illustrates the third guide portion 92c of the drive-side guide member 92 located on the drive side in CN110673455B. Figure 7 The diagram illustrates the second guide portion 93b of the non-drive side guide member 93 located on the non-drive side in CN110673455B. The third guide portion 92c and the second guide portion 93b are grooves, which are also the installation and removal paths of the drum assembly C.

[0153] Taking the drive side as an example, see [link / reference] Figure 15 and Figure 16 When the developing cartridge B is installed in the main body A1 along the installation direction, as the developing cartridge B moves, the second movable part 34i3 moves along the bottom wall of the third guide part 92c. After the developing cartridge B is installed in place, the second movable part 34i3 continues to abut against the bottom wall of the third guide part 92c, causing the second elastic member 34i2 to be compressed. The elastic force of the second elastic member 34i2 causes the second movable part 34i3 to abut against the third guide part 92c. When the developing cartridge B is detected, the drive-side device pressing member 150 moves towards the N8 direction and drives the drive-side detection member 70, causing the first movable member 120 to move towards the N8 direction in the slide groove 34a. During this process, the magnetic attraction between the first support member 16a and the main body A1 keeps the developing cartridge B in the contact position. However, when the magnetic force is insufficient to position the developing cartridge B, the developing cartridge B may rotate clockwise (from...). Figure 14(Looking at the direction), this causes a deviation in the contact position between the developing roller 13 and the photosensitive drum 10, affecting printing. Because the second movable part 34i3 abuts against the third guide part 92c through the elastic force of the second elastic member 34i2, the rotation of the developing cartridge B is restricted, thus allowing the developing cartridge B to be more stably positioned at the contact position. On the non-drive side, see... Figure 17 The second movable part 34i3 abuts against the second guide part 93b, and their working principle is the same, so it will not be described in detail here. The disassembly and installation of the developing cartridge B are similar. The second movable part 34i3 leaves the main body A1 of the device along the third guide part 92c and the second guide part 93b respectively.

[0154] In this embodiment, the second elastic element 34i2 acts as a buffer. During the installation of the developing cartridge B, the second movable part 34i3 can move relative to the second fixed part 34i1 under the elastic force of the second elastic element 34i2, preventing direct rigid collision with the third guide part 92c or the second guide part 93b, thus making the installation of the developing cartridge B smoother. After the developing cartridge B is installed in place, the elastic force of the second elastic element 34i2 allows the second movable part 34i3 to remain in contact with the third guide part 92c or the second guide part 93b. In other embodiments, the second support member 34i may only have the second fixed part 34i1, without the second elastic element 34i2 and the second movable part 34i3. The second fixed part 34i1 restricts the movement of the developing cartridge B through rigid contact with the third guide part 92c or the second guide part 93b.

[0155] In some other embodiments, only one second support member 34i may be provided, that is, the second support member 34i may be provided only on the driving side or the non-driving side. If the second support member 34i is provided on the driving side, it abuts against the third guide portion 92c; if the second support member 34i is provided on the non-driving side, it abuts against the second guide portion 93b. In other embodiments, the second support member 34i may also be configured not to abut against the third guide portion 92c or the second guide portion 93b, but to abut against other guide portions on the device body A1, as long as the movement of the developing cartridge B is restricted, no limitation is made here.

[0156] In some other embodiments, the first support member 16a may not be a magnetic component, but rather it may position the developing cartridge B in the contact position through abutment with other parts of the device body A1. In other embodiments, only the second support member 34i may be provided, without the first support member 16a, as long as the movement of the developing cartridge B is restricted and the developing cartridge B is positioned in the contact position.

[0157] Example 4

[0158] See 18 and Figure 19The main difference between this embodiment and embodiment one is that: in this embodiment, a bushing 16d is also provided at the end of the developing roller 13 to prevent wear.

[0159] In this embodiment, the developing cartridge B further includes a bushing 16d. The developing frame has a bushing hole 16c, and the bushing 16d is fixedly installed in the bushing hole 16c. The end of the developing roller 13 is rotatably installed in the bushing 16d, and the portion of the end of the developing roller 13 protruding outward through the bushing 16d is fixedly sleeved on the developing roller gear 29. The bushing 16d prevents severe wear and deformation at the contact point between the developing roller 13 and the developing frame, thus preventing instability in the developing process and affecting print quality.

[0160] Specifically, the bushing hole 16c is provided on the drive side of the developing container 16. In other embodiments, the bushing hole 16c may also be provided on the developing side cover 34 on the drive side.

[0161] Furthermore, the developing container 16 is also provided with at least one mounting positioning port 16c1. In this embodiment, there are two mounting positioning ports 16c1, and the mounting positioning ports 16c1 communicate with the bushing hole 16c. The bushing 16d is also provided with a radial protrusion 16d1, which is installed at the mounting positioning port 16c1, thereby positioning the bushing 16d.

[0162] Furthermore, at least one mounting positioning port 16c1 is exposed outwards. In this embodiment, the radial protrusions 16d1 are arranged 180 degrees apart on the bushing 16d, and correspondingly, the two mounting positioning ports 16c1 are also arranged 180 degrees apart on the bushing hole 16c. One of the mounting positioning ports 16c1 is arranged to be exposed outwards so that it is visible to prevent the bushing 16d from being omitted during the assembly of the developing cartridge B.

[0163] In some other embodiments, the radial protrusion 16d1 is set on the bushing 16d at any position and angle, and correspondingly, the mounting positioning port 16c1 is set on the bushing hole 16c at the same position and angle, as long as the bushing 16d can be installed and positioned, and there is no limitation.

[0164] Example 5

[0165] See Figure 20 and 21 This utility model provides an imaging device, including a device body A1, a developing cartridge B, and a drum assembly C, wherein the developing cartridge B and the drum assembly C are detachably mounted in the device body A1. The device body A1 in this embodiment can be, for example, the device body A1 disclosed in CN110673455B, and will not be described further here.

[0166] The drum assembly C in this embodiment includes a drum frame 21, a photosensitive drum 10, and a charging roller (not shown in the figure). The photosensitive drum 10 and the charging roller are rotatably supported on the drum frame 21 about the length of the processing box.

[0167] See Figure 21 The developing cartridge B in this embodiment includes a developing frame, a developing roller 13, a stirring rack (not shown in the figure), and a driving assembly. The two ends of the developing cartridge B along its length are a driving side and a non-driving side, respectively. The driving side is equipped with a driving assembly to receive driving force from the main body A, while the non-driving side does not receive driving force from the main body A. The driving assembly includes a connecting member 180, a driving input gear, a developing roller gear 29, etc. The connecting member 180 receives driving force from the main body A and transmits it to the developing roller gear 29 through the driving input gear, causing the developing roller gear 29 to rotate the developing roller 13. The developing frame includes a developing container 16 and developing side covers fixedly disposed at the ends of the developing container 16. The developing side covers include a driving side developing side cover 34 disposed on the driving side of the developing cartridge B and a non-driving side developing side cover 46 disposed on the non-driving side of the developing cartridge B. The developing container 16 is used to store developer. The developing roller 13 and the stirring rack are rotatably supported on the developing container 16 about the length of the developing cartridge B. The stirring rack is used to stir the developer in the developing container 16 and transport it in the direction of the developing roller 13.

[0168] See Figure 22 and Figure 23 In this embodiment, the developing cartridge B also includes a support member. When the developing cartridge B is installed in the device body A1, the support member abuts against the device body A1, positioning the developing cartridge B at the contact position where the developing roller 13 and the photosensitive drum 10 contact each other. This prevents the developing cartridge B from moving relative to the drum assembly C, ensuring that the developing roller 13 and the photosensitive drum 10 remain in contact. The support member limits the movement space of the developing cartridge B within the device body A1, ultimately achieving the installation and positioning of the developing cartridge B. Regardless of whether the developing cartridge B is in a working or non-working state, the developing roller 13 and the photosensitive drum 10 remain in contact.

[0169] The developing roller 13 and the photosensitive drum 10 are kept in contact by a support component. After installation, the developing cartridge B only has a contact position where the developing roller 13 and the photosensitive drum 10 contact each other, and no separation position where the developing roller 13 and the photosensitive drum 10 can be separated. The developing pressure spring is not provided, which simplifies the structure of the developing cartridge B, effectively reduces the manufacturing cost of the developing cartridge B, and also keeps the relative position of the developing cartridge B and the drum assembly C stable, which is conducive to the stable operation of the developing process and improves the printing quality.

[0170] Specifically, in this embodiment, the support includes two third support members 160a, which are respectively fixed to one side of the developing container 16. One of the two third support members 160a is closer to the driving side, and the other third support member 160a is closer to the non-driving side, so as to facilitate the balance of the developing cartridge B. In other embodiments, there may be one or more third support members 160a, fixed to other positions of the developing cartridge B, such as the driving side developing side cover 34 and / or the non-driving side developing side cover 46. Preferably, the third support member 160a is configured to abut against the metal plate 95 at the laser port of the device body A1.

[0171] Further, see Figure 23 The third support member 160a is configured to abut against the side slope 95a and / or the bottom 95b of the metal plate 95. Preferably, the third support member 160a is S-shaped, and the bottom 95b of the third support member 160a forms a hook portion 16a1, which protrudes from the developing frame and is used to hook the bottom 95b of the metal plate 95. Different degrees of contact between the developing roller 13 and the photosensitive drum 10 can be achieved by changing the design shape, design size, or positional relationship between the third support member 160a and the developing container 16 or the main body of the equipment A1, in order to achieve better developing results.

[0172] In this embodiment, the driving side of the developing cartridge B is also provided with a recognition component and a driving side rotation stop. The recognition component includes a driving side positioning part 34b, a driving side detection component 70, and a driving side developing pressure spring 71.

[0173] Specifically, see Figures 23 to 25 The drive-side positioning part 34b is driven by the drive-side detection component 70, thereby interacting with the drive-side swing guide 80 of the main body A1 to achieve positioning and machine recognition. Furthermore, in this embodiment, the drive-side detection component 70, the drive-side positioning part 34b, and the drive-side rotation stop 34c are fixedly connected; specifically, in this embodiment, the three are integrally formed into a first movable component 120 (see...). Figure 24 The drive-side developing side cover 34 is provided with an arc-shaped groove 34a (see reference). Figure 25The first movable member 120 is slidably disposed on the slide groove 34a. The drive-side detection member 70 receives the force from the drive-side device pressing member of the device body A1 and moves relative to the drive-side developing cover 34 in the slide groove 34a. The drive-side positioning part 34b moves with the first movable member 120, so that the drive-side positioning part 34b interacts with the drive-side swing guide 80 of the device body A1. The imaging device recognizes the signal generated by the drive-side swing guide 80 during one or more movements and thus determines that the installation is complete, that is, the device is recognized. The drive-side developing pressure spring 71 is used to reset the drive-side detection member 70 on the slide groove 34a. Specifically, the two ends of the drive-side developing pressure spring 71 are connected to the drive-side developing cover 34 and the first movable member 120, respectively. When the force received by the drive-side detection member 70 from the drive-side device pressing member disappears, the first movable member 120 is driven back to the initial position by the tension of the drive-side developing pressure spring 71. The drive-side developing pressure spring 71 is preferably a tension spring.

[0174] In this embodiment, when the drive-side detection component 70 receives the force of the drive-side device pressing component, it moves relative to the drive-side developing side cover 34. The drive-side developing side cover 34 remains fixed, and the developing cartridge B also remains fixed. That is, the drive-side detection component 70 is only used to cooperate with the drive-side positioning part 34b to realize the machine recognition function, and does not drive the developing cartridge B to move. The position of the developing cartridge B relative to the drum assembly C and the device body A1 remains unchanged.

[0175] The non-drive end of the developing cartridge B does not have a detection component or a tension spring; that is, in this embodiment, there is no non-drive side detection component or non-drive side tension spring. (See also...) Figure 26 The positioning part provided on the non-drive end of the developing cartridge B is the non-drive side positioning part 46b. The non-drive side positioning part 46b is fixedly installed on the non-drive side developing side cover 46 and is used to cooperate with the non-drive side swing guide 81 of the main body A1 to realize the positioning of the developing cartridge B.

[0176] In some implementations, see Figure 23 and Figure 24 The driving end of the developing cartridge B is also provided with a driving-side rotation stop 34c. The driving-side rotation stop 34c is fixedly connected to the driving-side positioning part 34b and cooperates with the driving-side swing guide 80 to achieve rotation stop.

[0177] In some implementations, see Figure 26 The non-drive end of the developing cartridge B is also provided with a non-drive side rotation stop 46c. The non-drive side rotation stop 46c is fixedly installed on the non-drive side developing side cover 46 and cooperates with the non-drive side swing guide 81 of the main body of the device A1 to achieve rotation stop.

[0178] Example 6

[0179] This embodiment is largely the same as embodiment five, with the main difference being that: in embodiment five, the third support member 160a is a single component, and the entire third support member 160a is fixedly connected to the developing frame, while in this embodiment, the third support member 160a includes multiple components, and only a portion of the structure is fixedly connected to the developing frame.

[0180] The third support member 160a is at least partially deformable, thereby generating an elastic force. When the developing cartridge B is installed in the main body A1 of the equipment, the third support member 160a abuts against the main body A1 of the equipment to generate deformation, thereby positioning the developing cartridge B at the contact position where the developing roller 13 contacts the photosensitive drum 10 through the elastic force.

[0181] See Figure 27 and Figure 28 In this embodiment, the third support member 160a includes a fixed part 16a2, an elastic member 16a3, and a movable part 16a4. The fixed part 16a2 is fixedly connected to the developing frame. The movable part 16a4 is connected to the fixed part 16a2 via the elastic member 16a3 and can move relative to the fixed part 16a2. The movable part 16a4 abuts against the main body A1 of the equipment, so that the developing cartridge B is positioned at the contact position where the developing roller and the photosensitive drum of the drum assembly meet. The fixed part 16a2, the elastic member 16a3, and the movable part 16a4 make it easier to install the developing cartridge B and prevent rigid collisions with the main body A1 of the equipment. When the developing cartridge B is installed, the movable part 16a4 abuts against the main body A1, causing the elastic member 16a3 to be compressed. The elastic force of the elastic member 16a3 applies pressure to the developing cartridge B, so that the developing cartridge B is positioned at the contact position where the developing roller and the photosensitive drum of the drum assembly meet.

[0182] Specifically, the first end of the fixing part 16a2 is provided with a snap-fit ​​part 16a21, and the developing container 16 is provided with a mating part 16b. The snap-fit ​​part 16a21 and the mating part 16b are corresponding slot structures, so that the snap-fit ​​part 16a21 can be detachably fixedly connected to the mating part 16b, and the fixing part 16a2 can be detachably connected to the developing container 16. In other embodiments, the fixing part 16a2 can also be non-detachably connected to the developing container 16. Specifically, the mating part 16b is a strip-shaped protrusion provided along the length direction of the developing cartridge B (i.e., along the rotation axis direction of the developing roller 13), and the snap-fit ​​part 16a21 is a hook provided along the length direction of the developing cartridge B. The strip-shaped protrusion can slide into the hook along the length direction of the developing cartridge B to form a fit.

[0183] The fixed part 16a2 has a sliding hole 16a22, and the second end of the fixed part 16a2 is a first opening 16a23. The movable part 16a4 is inserted into the sliding hole 16a22 through the first opening 16a23 and can slide along the sliding hole 16a22. The two ends of the elastic member 16a3 abut against the inner wall of the sliding hole 16a22 and the movable part 16a4, respectively. The movable part 16a4 is specifically a rod-shaped structure. The first end of the movable part 16a4 has a limiting part 16a42, which cooperates with the second openings 16a24 on both sides of the fixed part 16a2 to prevent the movable part 16a4 from disengaging from the fixed part 16a2. The second end of the movable part 16a4 has an abutting inclined surface 16a41, which is used to abut against the side inclined surface 95a of the metal plate 95 at the laser port of the main body of the device A1.

[0184] Example 7

[0185] This embodiment is largely the same as Embodiment 5, with the main difference being that: in Embodiment 5, a driving-side developing pressure spring 71 is provided for the elastic reset of the first movable member 120, while in this embodiment, the first movable member 120 relies on the gravitational potential energy of the gravity block 120a to reset it. (See also...) Figures 29 to 31 In this embodiment, the driving-side developing cover 34 is further provided with a push receiving block 420 and a push elastic member 410, and the first movable member 120 is further provided with a push action part 120b. The push receiving block 420 is slidably disposed on the driving-side developing cover 34, and the two ends of the push elastic member 410 are respectively connected to the push receiving block 420 and the driving-side developing cover 34. Under the gravity of the gravity block 120a, the first movable member 120 applies a push force approximately in the N7 direction to the push receiving block 420 through the push action part 120b. The push receiving block 420 moves relative to the driving-side developing cover 34 in the N7 direction, thereby deforming the push elastic member 410. The elastic force of the push elastic member 410 acts on the driving-side developing cover 34, thereby acting on the developing cartridge, so that the developing roller 13 can be closer to the photosensitive drum 10, and the contact between the two is tighter. In this embodiment, the push elastic member 410 is preferably a spring.

[0186] When the developing cartridge is installed into the imaging equipment, the developing roller 13 of the developing cartridge contacts the photosensitive drum 10 of the drum assembly. The drive-side pressing member 150, triggered by the closing of the imaging equipment door, moves towards direction N7, acting on the drive-side detection member 70. This causes the first movable member 120 to move towards direction N7 to the non-recognition position. Subsequently, the main body of the equipment performs an installation test on the developing cartridge. The drive-side pressing member 150 moves towards direction N8, driving the first movable member 120 towards direction N8 to the recognition position, triggering a detection signal. Then, the drive-side pressing member 150 moves towards direction N7, and simultaneously, under the action of the gravity block 120a, the first movable member 120 returns to the non-recognition position towards direction N7. This process of triggering the detection signal once or multiple times achieves recognition. During the above process, the first movable member 120 may be subjected to a force in the N8 direction, which may cause some shaking of the developing cartridge. Even when the first movable member 120 is reset to the non-recognition position in the N7 direction, the developing roller 13 may not make close contact with the photosensitive drum 10 due to shaking. By setting the push receiving block 420 and the push elastic member 410 to cooperate with the gravity block 120a, the close contact between the developing roller 13 and the photosensitive drum 10 can be further guaranteed.

[0187] Example 8

[0188] See Figure 32 This embodiment eight is largely the same as embodiment seven, except that the position of the gravity block 120a is different. In this embodiment, the gravity block 120a is located at the lower part of the first movable member 120, specifically on the drive-side detection member 70. Its working principle is similar to that of embodiment seven. When the first movable member 120 moves in the N8 direction and upward under the force of the drive-side device pressing member 150, the gravity block 120a moves upward accordingly, storing gravitational potential energy. When the detection signal is triggered, the drive-side device pressing member 150 moves in the N7 direction, and at the same time, the gravity block 120a releases gravitational potential energy and moves downward. Through the shape of the groove, the force in the direction of gravity is converted into a force in the front-back direction (specifically the N7 direction), so that the first movable member 120 is reset from the recognized position to the non-recognized position.

[0189] Furthermore, in this embodiment, the gravitational potential energy of the gravity block 120a can be increased by increasing the inclination of the slide 34a on the side closer to the N8 direction, so that the first movable member 120 can return to the non-recognition position more smoothly.

[0190] In this embodiment, the gravity block 120a is disposed on the drive-side detection member 70. Compared with the first embodiment, this reduces the volume of the first movable member 120, which is beneficial for miniaturization of the developing cartridge. In other embodiments, the gravity block 120a may also be disposed at other positions on the first movable member 120.

[0191] Example 9

[0192] See Figure 33 The difference between this embodiment and embodiment seven is that this embodiment does not set up a gravity block 120a, but uses the magnetic force of a magnet to reset the first movable component 120.

[0193] Specifically, a first magnet 510 is provided on the first movable member 120, and a second magnet 520 is provided on the driving-side developing side cover 34. The second magnet 520 can be specifically located on the side of the driving-side developing side cover 34 away from the developing roller 13, that is, the second magnet 520 is closer to the N8 direction on the driving-side developing side cover 34 (relative to the N7 direction). The first magnet 510 and the second magnet 520 repel each other, thereby generating a force that causes the first movable member 120 to return to its original position in the N7 direction.

[0194] Furthermore, a third magnet 530 is provided on the driving-side developing cover 34. The third magnet 530 replaces the push receiving block 420 and the push elastic member 410 in Embodiment 7, reducing the number of structural components. Its working principle is similar. The third magnet 530 repels the first magnet 510. The magnetic force of the third magnet 530 in the N7 direction acts on the driving-side developing cover 34, thereby acting on the developing cartridge, so that the developing roller 13 can be closer to the photosensitive drum 10, and the contact between the two is tighter.

[0195] Example 10

[0196] This embodiment is similar to Embodiment Six, except that the shape and structure of the third support member 160a are different. This embodiment does not require a spring structure, but generates elastic force by deforming the shape of the structural member, thereby forcing the developing cartridge B to move closer to the photosensitive drum 10.

[0197] See Figures 34 to 36In this embodiment, the third support member 160a includes a connecting portion 16a5, a positioning portion 16a6, and a deformable portion 16a7. The connecting portion 16a5 is used for fixed connection with the developing frame (specifically, fixed connection with the developing container 16 in this embodiment). The positioning portion 16a6 is used for abutting against the device body A1, thereby positioning the third support member 160a by the device body A1. In this embodiment, the position where the device body A1 abuts against the positioning portion 16a6 is referred to as the positioned portion A1a. The deformable part 16a7 has a connecting end 16a71 and a free end 16a72. The connecting end 16a71 is fixedly connected to the connecting part 16a5 and the positioning part 16a6 respectively. The free end 16a72 is used to abut against the main body A1 of the device, so that the deformable part 16a7 deforms under the action of the main body A1 of the device, thereby positioning the developing cartridge at the contact position where the developing roller 13 contacts the photosensitive drum 10 through elastic force. In this embodiment, the position where the main body A1 of the device abuts against the free end 16a72 of the deformable part 16a7 is called the abutted part A1b.

[0198] Specifically, when the developing cartridge is not installed, the distance between the free end 16a72 of the deformable part 16a7 and the positioning part 16a6 is D1, and the distance between the positioned part A1a and the abutted part A1b of the device body A1 is D2, with D1 being less than D2. When the developing cartridge is installed, since D1 is less than D2, when the deformable part 16a7 and the positioning part 16a6 of the third support member 160a are installed at the abutted part A1b and the positioned part A1a of the device body A1, the deformable part 16a7 and the positioning part 16a6 will be stretched apart, causing the deformable part 16a7 to deform, thereby generating an approximately clockwise direction (based on the direction from the device body towards the processing cartridge drive side, i.e.) Figure 36 The elastic force F (in the clockwise direction shown) forces the developing roller 13 of the developing cartridge to move closer to the photosensitive drum 10.

[0199] In this embodiment, the positioned part A1a and the abutted part A1b of the device body A1 are close to the conveying guide 3d in the device body A1 (see reference). Figure 3 The position of ) can also be any other position of the main body A1 in other embodiments, as long as a similar effect can be achieved.

[0200] Furthermore, in this embodiment, the connecting portion 16a5 and the deformable portion 16a7 form a V-shaped structure to facilitate deformation of the deformable portion 16a7. The tip 16a9 of the V-shaped structure faces outward (i.e., towards the outside of the developing cartridge B). The third support member 160a also includes an extension 16a8 extending horizontally outward from the V-shaped structure. The positioning portion 16a6 is a positioning protrusion provided at the end of the extension 16a8, which can engage with the positioned portion A1a of the device body A1 to abut against it. The shape and structure of the V-shaped structure and the extension 16a8 make the third support member 160a structurally stronger and able to support the developing cartridge more stably.

[0201] Further in this embodiment, there are two third support members 160a, which are respectively fixed to one side of the developing container 16. One of the two third support members 160a is closer to the driving side, and the other third support member 160a is closer to the non-driving side, so as to facilitate the balance of the developing cartridge B. Specifically, the third support member 160a is disposed at the end of the developing container 16 near the developing roller 13, that is, in the front-rear direction, the third support member 160a is located at the front end, that is, the end facing N7, and is located below the developing roller 13. When viewed along the axial direction of the developing roller 13, at least a portion of the third support member 160a is located between the rotation axis of the developing roller 13 and the rotation axis of the connecting member 180, that is, see [reference]. Figure 34 With the developing cartridge installed in the main body of the equipment as a reference, and viewed from the side view direction of the developing cartridge, draw a vertical line L3 through the rotation center of the developing roller 13 and a vertical line L4 through the rotation center of the connecting member 180. At least a portion of the third support member 160a is located between L3 and L4. In other embodiments, the third support member 160a may be one or more, fixed to other positions of the developing cartridge, such as the driving-side developing side cover 34 and / or the non-driving-side developing side cover 46.

[0202] Example 11

[0203] Figure 37 and Figure 38The diagram schematically illustrates a developing cartridge B according to one embodiment of the present invention. For ease of description, the width direction of the developing cartridge B is defined as the second direction (Y direction), the length direction of the developing cartridge B as the first direction (X direction), and the height direction of the developing cartridge B as the third direction (Z direction); the X-axis, Y-axis, and Z-axis are orthogonal to each other. The installation direction of the developing cartridge B from the outside into the imaging device is defined as the Y1 direction, and the disassembly direction is defined as the Y2 direction. One end in the Y1 direction is also the front end of the developing cartridge B, and the other end in the Y2 direction is the rear end. The developing cartridge B has a driving end and a conductive end in the length direction (X direction). The driving end is located on the X1 direction side of the developing cartridge B, and the conductive end is located on the side opposite to the driving end in the X direction, i.e., the X2 direction side. The Z1 direction end of the developing cartridge B is also referred to as the upper end, and the Z2 direction end is referred to as the lower end.

[0204] like Figures 37 to 40 As shown, the developing cartridge B includes a developing frame 11, a protective cover, a developing roller 13, a powder dispensing blade 3, a stirring rack (not shown), an electrode 4, a chip, and a driving assembly.

[0205] like Figure 37 and Figure 38 As shown, the developing frame 11 is generally in the shape of a long box, which encloses a toner (an example of a developer) storage compartment. The cover includes a drive end cover 14 and a conductive end cover 12. The drive end cover 14 is disposed on the outer side of the end face of the drive end of the developing frame 11, and the conductive end cover 12 is disposed on the outer side of the end face of the conductive end of the developing frame 11.

[0206] like Figures 37 to 39 As shown, the developing roller 13 is rotatably supported on the developing frame 11. Specifically, the axial direction of the developing roller 13 is consistent with the length direction of the developing frame 11 (i.e., along the X direction). In the Y direction, the developing roller 13 is located at the front end (Y1 direction end) of the developing frame 11. The developing roller 13 includes a developing roller shaft 13a and a rubber roller body. The developing roller shaft 13a can be made of a conductive metal material. The driving end of the developing frame 11 is provided with a bushing hole 16c, and a bushing 16d is provided in the bushing hole 16c. The bushing 16d rotatably supports the developing roller 13. The bushing 16d is fixedly installed in the bushing hole 16c and can be fixed by means of gluing, snapping, welding, etc. In this embodiment, the bushing hole 16c and the bushing 16d are engaged and connected by a protrusion 1121 and a slot 1111. The developing roller shaft 13a passes through the bushing 16d, thereby realizing the support of the developing roller 13 by the bushing 16d. This design enhances the wear resistance of the contact area between the developing roller 13 and the developing frame 11, ensuring that the bushing 16d does not suffer severe wear when the developing roller 13 rotates under force, thus reducing the risk of whitening during printing due to deformation at this location. Figure 40As shown, the conductive end of the developing cartridge B is provided with a conductive bushing 123. The conductive bushing 123 is used to support the conductive end of the developing roller shaft 13a. The conductive bushing 123 can be fixedly installed inside the conductive end cover 12. The conductive bushing 123 can be made of conductive material.

[0207] like Figures 37 to 40 As shown, the powder ejector blade 3 is mounted on the developing frame 11. A portion of the powder ejector blade 3 is in linear contact with the surface of the developing roller 13 to control the thickness of the developer layer adhering to the developing roller 13, thereby ensuring uniform developer delivery by the developing roller 13. Specifically, the powder ejector blade 3 includes a blade holder and a blade. The blade is mounted on the blade holder and fixed to the developing frame 11 together with the blade holder. The blade holder can be made of a conductive metal material, and the blade can be made of rubber or metal. A portion of the blade is in linear contact with the roller surface of the developing roller 13.

[0208] like Figure 38 and Figure 40 As shown, electrode 4 is disposed at the conductive end of developing frame 11, specifically mounted inside conductive end cover 12. Electrode 4 includes electrode contact 41, which is configured to be electrically connected to the electrical output component of the imaging device to receive voltage. Electrode contact 41 is exposed outside conductive end cover 12, specifically protruding from the outer side wall (side wall in the X2 direction) of conductive end cover 12. Electrode 4 is electrically connected to one end of developing roller 13 in the length direction (one end in the X2 direction), and also electrically connected to one end of powder discharge blade 3 in the length direction (one end in the X2 direction), thereby enabling electrode 4 to supply voltage to developing roller 13 and powder discharge blade 3 after receiving voltage through electrode contact 41. Specifically, electrode 4 includes a first contact portion 42 and a second contact portion 43, wherein the first contact portion 42 contacts conductive bushing 123, transmitting voltage to developing roller shaft 13a through conductive bushing 123, and the second contact portion 43 contacts powder discharge blade 3, thereby realizing voltage transmission.

[0209] Electrode 4 can be a conductive steel sheet. Electrode 4 can be fixed to the conductive end cover 12 by snapping, pasting, or other means. Electrode contact 41 is a part of the conductive steel sheet, and the first contact portion 42 and the second contact portion 43 are also a part of the conductive steel sheet. Preferably, electrode 4 is installed on the conductive end cover 12 by snapping. Electrode 4 is provided with a snapping structure. Electrode 4 has a generally semi-enclosed structure 44 with one open end. The semi-enclosed structure 44 is embedded in a groove provided inside the conductive end cover 12. One or more sides of the semi-enclosed structure 44 are provided with elastic buckles 45 (such as elastic arms). The sidewall of the groove is provided with a slot that engages with the elastic buckle 45, thereby snapping and fixing electrode 4 inside the conductive end cover 12.

[0210] Furthermore, the electrode 4 is also provided with a structure for positioning with the conductive end cover 12. Specifically, the electrode 4 is provided with at least one positioning hole 49, which cooperates with the positioning support shaft 122 on the inner side of the conductive end cover 12 to achieve the positioning function. Alternatively, the electrode 4 is also provided with another positioning structure. The electrode 4 is provided with a second through hole 517. The side of the second through hole 517 is provided with a positioning spring piece 48. Two positioning spring pieces 48 are provided and are arranged opposite to each other, forming a channel between the two positioning spring pieces 48 for the positioning support shaft 122 to pass through. During assembly, the positioning support shaft 122 passes through the channel between the two positioning spring pieces 48. Under the action of elastic force, the two positioning spring pieces 48 press against the outer surface of the positioning support shaft 122, thereby achieving the positioning function and preventing the electrode 4 from dislodging from the conductive end cover 12.

[0211] In some other embodiments, electrode 4 may also be formed by secondary injection molding of conductive material onto conductive end cap 12.

[0212] The stirring frame is rotatably supported on the developing frame 11 and located inside the powder hopper. Specifically, the two ends of the stirring frame are supported on the end face of the driving end and the end face of the conductive end of the developing frame 11. The length direction of the stirring frame is consistent with the length direction of the developing frame 11. The stirring frame can rotate circumferentially along its axis in the length direction. The stirring frame can have one or more blades. By rotating, the blades are driven to stir the developer in the powder hopper to prevent the developer in the powder hopper from clumping. At the same time, the developer can also be conveyed to the developing roller 13 so that the developer is adsorbed by the charged developing roller 13.

[0213] The chip is disposed on the conductive end cover 12, specifically at one end of the conductive end cover 12 in the width direction near the axis of the developing roller 13 (Y1 direction end), and further forward in the second direction than the axis of the developing roller 13. The chip stores information about the developing cartridge B and has chip contacts configured to electrically connect with the imaging device to establish communication, enabling the imaging device to acquire and recognize information about the developing cartridge B. Figure 37 As shown, the conductive end cover 12 has a chip mounting base 121 on one end of its width direction near the axis of the developing roller 13 for mounting chips. When the chip is mounted in the mounting base, the chip contacts face away from the conductive end cover 12.

[0214] like Figure 37 , Figure 39 , Figures 41 to 44As shown, the driving assembly is located at the driving end of the developing frame 11. The driving assembly includes a power receiving component 51, a driving gear 52, a developing gear 53, and a stirring gear 54. The developing gear 53 is located at the driving end of the developing roller shaft 13a, and the stirring gear 54 is located at the driving end of the stirring frame shaft. The outer circumferential surface of the driving gear 52 is provided with teeth, which directly or indirectly mesh with the developing gear 53 and the stirring gear 54. That is, when the driving gear 52 rotates, it can drive the developing roller 13a and the stirring frame to rotate through the meshing relationship between the gears. The X1 direction end of the drive gear 52 is recessed to form a receiving cavity. The drive gear 52 is disposed at the drive end and is rotatably supported by the drive end cover 14. Specifically, the inner side of the drive end cover 14 is provided with a support part, which is a first annular protrusion 141 protruding from the inner wall of the drive end cover 14. The first annular protrusion 141 is adapted to the second annular protrusion 521 at the X1 direction end of the drive gear 52. During assembly, the first annular protrusion 141 and the second annular protrusion 521 are nested in each other, so that the drive end cover 14 forms a support for the drive gear 52.

[0215] In some other implementations, such as Figure 45 and Figure 46 As shown, the drive gear 52 is no longer supported by the drive end cover 14, but by the developing frame 11. Specifically, the end face of the drive end of the developing frame 11 is provided with a support portion, which is a third annular protrusion 113 extending in the X1 direction. The X2 end of the drive gear 52 is provided with a fourth annular protrusion 522 extending in the X2 direction. During assembly, the third annular protrusion 113 and the fourth annular protrusion 522 are nested together, thereby allowing the developing frame 11 to support the drive gear 52. When the drive gear 52 is supported on the developing frame 11, there is a gap between the drive gear 52 and the drive end cover 14, that is, the drive gear 52 does not contact the drive end cover 14 when it rotates.

[0216] Furthermore, such as Figure 41 and Figure 43 As shown, the cavity of the drive gear 52 is provided with a first groove 523. The first groove 523 extends along the radial direction of the drive gear 52. The bottom of the first groove 523 is provided with a first through hole 524 that axially penetrates the drive gear 52. When viewed along the axial direction, the first through hole 524 is an elongated hole, and its length direction is consistent with the extension direction of the first groove 523.

[0217] like Figures 42 to 43As shown, the power receiver 51 is used to engage with the drive head of the imaging device to receive driving force. The power receiver 51 includes a force receiving protrusion 511, a connecting part 16a5, a sliding part 513, and an abutment part 514. There are two force receiving protrusions 511, which are located at the X1 direction end of the power receiver 51. The two force receiving protrusions 511 are centrally symmetrically arranged, and the line connecting the two power receiving protrusions 511 is L1. The two force receiving protrusions 511 are respectively used to abut with the two transmission pins of the drive head, thereby receiving the driving force of the drive head to rotate. The connecting part 16a5 is a rod-shaped member connected to the X2 direction end of the force receiving protrusion 511. The abutting part 514 and the sliding part 513 are both provided on the connecting part 16a5, and the abutting part 514 is located between the sliding part 513 and the force receiving protrusion 511. The abutting part 514 is an annular plate, and its central axis position coincides with the central axis position of the connecting part 16a5. The sliding part 513 is approximately a cuboid protrusion, and the length direction of the sliding part 513 is parallel to the connecting line L1. When the power receiver 51 is installed into the drive gear 52, the connecting part 16a5 passes through the first through hole 524, and the sliding part 513 is accommodated in the first groove 523 with its two sides abutting against the two first groove walls 5231 of the first groove 523 respectively, so that the power receiver 51 and the drive gear 52 form a transmission relationship. When the power receiver 51 receives the driving force and rotates, it can drive the drive gear 52 to rotate. The X2 direction end of the connecting part 16a5 can also be provided with a buckle 5121, which can engage with the first through hole 524 to prevent the power receiver 51 from disengaging from the drive gear 52.

[0218] like Figure 44 As shown, the drive end cover 14 is provided with a sliding hole 142. The force receiving protrusion 511 of the power receiving member 51 extends out of the sliding hole 142 to be exposed on the outside of the drive end cover 14, so as to facilitate engagement with the drive head. The sliding hole 142 is a strip-shaped hole, and its extension direction is along the Y direction. The power receiving member 51 can move in the sliding hole 142 along the Y direction.

[0219] Furthermore, such as Figure 44 , Figure 47 , Figure 49 and Figure 51As shown, the drive end cover 14 is provided with a limiting part for limiting the movement of the power receiver 51 along the installation direction (Y1 direction) and a third direction perpendicular to the installation direction. The limiting part includes a protruding first limiting wall 143, which is located within the range of the first annular protrusion 141 and protrudes from the inner wall of the drive end cover 14 along the X2 direction. The first limiting wall 143 is located on one side of the power receiver 51 along the installation direction (Y1 direction side) and can abut against the abutment part 514 of the power receiver 51 to limit the movement of the power receiver 51 in the Y1 direction. Furthermore, the limiting part also includes a protruding second limiting wall 144. The second limiting wall 144 is located on one or both sides of the power receiver 51 in a third direction (Z direction) perpendicular to the installation direction (Y1 direction). That is, the second limiting wall 144 abuts against the lower side (Z2 direction side) or the upper and lower sides (Z1 and Z2 direction sides) of the abutment portion 514 of the power receiver 51, thereby limiting the movement of the power receiver 51 in the Z direction. The limiting part can limit the position of the power receiver 51. When the clearance between the power receiver 51 and the limiting part is within the range of 0-0.1mm, the power receiver 51 can normally engage with the drive head of the imaging device. At this time, the position of the power receiver 51 is also called the initial position. If it exceeds this range, it is easy for the power receiver 51 to wobble relative to the drive head when engaging with it, affecting the quality of the printed document.

[0220] like Figure 37 , Figure 48 and Figure 50 As shown, the limiting part can only restrict the movement of the power receiver 51 in the Y1 and Z directions, but does not restrict the movement of the power receiver 51 in the Y2 direction. The developing cartridge B also includes an elastic element 16a3, which is supported on the drive end cover 14 and abuts against the power receiver 51. Specifically, the elastic element 16a3 is a torsion spring. The drive end cover 14 is provided with a support post, and the torsion spring is sleeved on the support post. One arm of the torsion spring abuts against the connecting part 16a5 of the power receiver 51, and the other arm abuts against the drive end cover 14. In the absence of external force, the elastic element 16a3 is configured to keep the power receiver 51 in the initial position. When the power receiver 51 is subjected to force and moves in the opposite direction to the installation direction (Y2 direction), the elastic element 16a3 is torsional deformed, generating a force that allows the power receiver 51 to move in the installation direction (Y1 direction).

[0221] During the process of installing the developing cartridge B into the imaging device along the mounting direction (Y1 direction), the power receiver 51 has two states.

[0222] The first scenario: (e.g.) Figure 48 and Figure 49As shown, the power receiver 51 is in the first state, that is, the angle between the line L1 connecting the two force receiving protrusions 511 and the installation direction (Y1 direction) is less than or equal to 45°. The force receiving protrusions 511 of the power receiver 51 cannot engage with the transmission pin of the drive head, and the force receiving protrusions 511 will interfere with the drive head. Taking the connection line L1 being parallel to the installation direction, i.e., the angle is 0°, as an example, during the process of the developing cartridge B being installed into the imaging device along the installation direction (Y1 direction), the extension direction of the connection line L1 and the first slide groove 523 are both parallel to the Y direction. The power receiver 51 interferes with the drive head and is pushed to move relative to the drive gear 52 in the first slide groove 523 in the opposite direction to the installation direction (Y2 direction). That is, the sliding part 513 moves along the first slide groove 523, and the connecting part 16a5 moves along the sliding hole 142 and the first through hole 524 to avoid the drive head and prevent hard collision between the two from causing damage. During the movement of the power receiver 51, the elastic member 16a3 is torsional deformed. Once the drive head starts to rotate continuously, the power receiver 51 moves towards its initial position along the installation direction (Y1 direction) under the force of the elastic member 16a3. At this time, the power receiver 51 only translates and does not rotate until the drive head rotates to a position where it can engage with the force receiving protrusion 511 of the power receiver 51. Then, the force receiving protrusion 511 engages with the rotating drive head.

[0223] The second scenario: Figure 50 and Figure 51 As shown, when the power receiver 51 is in the second state, that is, when the angle between the line L1 connecting the two force receiving protrusions 511 and the third direction (Z direction) perpendicular to the installation direction is less than 45°, the angle between the first slide groove 523 and the third direction perpendicular to the installation direction is also less than 45°, the power receiver 51 can directly engage with the drive head. Taking the angle between line L1 and the third direction as 0° (i.e., line L1 is perpendicular to the installation direction Y1) as an example, the power receiver 51 is restricted by the limiting part, and the first slide groove 523 is perpendicular to the installation direction Y1. The sliding part 513 of the power receiver 51 abuts against the two first groove walls 5231 of the first slide groove 523 in the Y direction. The power receiver 51 cannot move in the Y direction (it cannot move in the installation direction Y1 or in the opposite direction Y2). At this time, the opening formed between the two force receiving protrusions 511 faces the transmission pin of the drive head. There is no interference between the transmission pin and the power receiver 51. That is, the power receiver 51 is exactly in the position where the force receiving protrusion 511 can normally mesh with the drive head, and the developing cartridge B can be directly installed in place.

[0224] This embodiment limits the position of the power receiver 51 by setting the limiting part, the sliding part 513 and the first sliding groove 523. The power receiver 51 can only move in the opposite direction (Y2 direction) to the installation direction when it interferes with the structure of the driving head of the imaging device (i.e., when the power receiver 51 is in the first state). The power receiver 51 is reset by the elastic member 16a3. At this time, the driving head of the imaging device continues to rotate around its own axis until the driving head rotates to a position that can engage with the two force receiving protrusions 511 of the power receiver 51. The driving head and the power receiver 51 are engaged, and the driving head transmits driving force to the power receiver 51. The power receiver 51 retracts to avoid structural collision damage / wear to the driving head. If there is no structural interference between the power receiver 51 and the driving head (i.e., when the power receiver 51 is in the second state), the power receiver 51 is restricted from moving in the Y and Z directions. The force receiving protrusions 511 can directly engage with the driving head, which can reduce the engagement time.

[0225] Example 12

[0226] This embodiment provides another developing cartridge B, which differs from embodiment eleven in that the driving assembly also includes a support base 56.

[0227] like Figures 52 to 54 As shown, in this embodiment, the support base 56 is housed within the drive gear 52. The support base 56 is a cylindrical or approximately cylindrical component. It is housed within a recess 525 that mates with the drive gear 52. A protrusion 561 is provided on the outer circumferential surface of the support base 56, and a notch 5251 that mates with the protrusion 561 is provided on the inner wall of the recess 525. During assembly, the protrusion 561 is inserted into the notch 5251, thereby establishing a transmission connection between the support base 56 and the drive gear 52. That is, when the support base 56 rotates, it can drive the drive gear 52 to rotate together. The number of protrusions 561 and recesses 525 can be set to one or more, with multiple protrusions 561 and recesses arranged at intervals along the circumferential direction.

[0228] like Figure 53 As shown, the support base 56 has a second groove 562 at its X1 direction end. The second groove 562 extends along the radial direction of the support base 56, and the bottom of the groove 562 has a second through hole 563 that extends axially. When viewed axially, the second through hole 563 is an elongated hole, and its length direction is consistent with the extension direction of the second groove 562.

[0229] The structure of the power receiver 51 is the same as that in Embodiment 11, and will not be described again here. When the power receiver 51 is installed in the drive gear 52, the connecting part 16a5 passes through the second through hole 563 of the support base 56, and the sliding part 513 is accommodated in the second slide groove 562 and its two sides abut against the two second groove walls 5621 of the second slide groove 562 respectively, so that the power receiver 51 and the support base 56 form a transmission relationship, and then also form a transmission relationship with the drive gear 52. When the power receiver 51 receives the driving force and rotates, it drives the support base 56 to rotate, and the support base 56 drives the drive gear 52 to rotate synchronously.

[0230] In this embodiment, the limiting part includes a first limiting wall 143 and two second limiting walls 144 located on the upper and lower sides of the power receiver 51, respectively. That is, the movement of the power receiver 51 in the forward (Y1 direction), upward (Z1 direction), and downward (Z2 direction) directions is limited. The clearance between the first limiting wall 143, the second limiting wall 144 and the power receiver 51 is in the range of 0-0.1mm.

[0231] like Figure 55 As shown, the movement of the developing cartridge B during installation in this embodiment is similar to that in Embodiment Eleven. When the power receiving member 51 is in the first state, the power receiving member 51 interferes with the driving head and is pushed to move relative to the support base 56 in the second slide groove 562 in the direction opposite to the installation direction (Y2 direction). That is, the sliding part 513 moves along the second slide groove 562, and the connecting part 16a5 moves along the sliding hole 142 and the second through hole 563 to avoid the driving head. After the driving head starts to rotate continuously, it moves relative to the support base 56 in the installation direction (Y1 direction) under the action of the elastic member 16a3. At this time, the power receiving member 51 only translates and does not rotate until the driving head rotates to a posture that can engage with the force receiving protrusion 511 of the power receiving member 51. Then, the force receiving protrusion 511 engages with the rotating driving head.

[0232] like Figure 56 As shown, when the power receiver 51 is in the second state, the second slide groove 562 is perpendicular to / intersects the Y direction. The sliding part 513 of the power receiver 51 abuts against the two second groove walls 5621 of the second slide groove 562 in the Y direction. The power receiver 51 cannot move in the Y direction (it cannot move in the installation direction Y1 or in the opposite direction Y2). At this time, the opening formed between the two force receiving protrusions 511 faces the drive pin of the drive head. There is no interference between the drive pin and the power receiver 51. That is, the power receiver 51 is exactly in the position where the force receiving protrusion 511 can normally mesh with the drive head, and the developing cartridge B can be directly installed in the machine.

[0233] The other structures of the developing cartridge B in this embodiment are the same as those in Embodiment 11, and will not be described again here.

[0234] Example 13

[0235] This embodiment provides yet another developing cartridge B, which has a different structure of drive assembly compared to embodiments eleven and twelve.

[0236] like Figure 57 As shown, in this embodiment, the drive assembly includes a power receiver 51, a drive gear 52, a gear cover 57, a slider seat 58, a slider 59, a connecting rod 60, and a retaining ring 61.

[0237] like Figure 57 and Figure 58 As shown, the gear cover 57 is rotatably supported on the support portion of the developing frame 11. The gear cover 57 is provided with a first engagement portion 571 extending in the X direction. Multiple first engagement portions 571 can be provided, and the multiple first engagement portions 571 are spaced apart in their circumferential direction. The inner wall of the drive gear 52 is provided with a second engagement portion 526 that engages with the first engagement portion 571. One of the first engagement portion 571 and the second engagement portion 526 is a snap-fit, and the other is a slot, so that the drive gear 52 is engaged with the gear cover 57. The gear cover 57 and the drive gear 52 can rotate synchronously, so that the drive gear 52 is also rotated and supported on the developing frame 11.

[0238] like Figures 59 to 62 As shown, the slider seat 58 is generally a frame structure, and it is fixedly mounted on the drive end cover 14. The slider seat 58 includes a base 581 and two opposing plate-shaped members 582 mounted on the base 581. The two plate-shaped members 582 are positioned opposite each other and spaced apart in the Z direction. A first rib 583 is provided on the opposite side of the two plate-shaped members 582, extending in the X direction. A first groove 135 is provided on the drive end cover 14. During assembly, the first rib 583 is embedded in the first groove 135, which restricts the movement of the slider seat 58 in the Y direction. Alternatively, the first groove can be provided on both plate-shaped members 582, and a corresponding first rib can be provided on the drive end cover 14. The space between the two plate-shaped members 582 constitutes a receiving portion. The slider 59 is slidably disposed within the receiving portion of the slider seat 58. Specifically, a second rib 584 is provided on one side of the two plate-shaped members 582 facing each other. The second rib 584 extends along the Y direction. The slider 59 is provided with a second groove 591 extending along the Y direction. During assembly, the second rib 584 is embedded in the second groove 591, allowing the slider 59 to move relative to the slider seat 58 in the Y direction. Alternatively, a second groove can be provided on the plate-shaped member 582, and a second rib can be provided on the slider 59 to cooperate with it. Part of the slider seat 58 and the slider 59 are housed within the drive gear 52, while a part is exposed outside the drive end cover 14. The slider seat 58 and the slider 59 do not rotate with the drive gear 52.

[0239] like Figure 60 and Figure 61 As shown, the base 581 of the slider seat 58 is provided with a third through hole 585 extending axially (X direction). The third through hole 585 is a strip-shaped hole, and its length extends along the Y direction. The slider 59 is provided with a fourth through hole 592 extending axially (X direction). The fourth through hole 592 is a circular hole, and its diameter is adapted to the connecting part 16a5 of the power receiver 51. During assembly, the connecting part 16a5 of the power receiver 51 passes through the fourth through hole 592 and the third through hole 585 in sequence and is then inserted into the drive gear 52.

[0240] like Figure 57 As shown, a third groove 515 is provided on the circumferential wall of the connecting part 16a5 of the power receiver 51. The third groove 515 is an annular groove. The retaining spring 61 is engaged in the annular groove and is located on the X2 direction side of the base 581 of the slider seat 58. It can abut against the slider seat 58 to prevent the power receiver 51 from coming out.

[0241] like Figure 57 , Figure 62 and Figure 64 As shown, the power receiver 51 is provided with a first through hole 516. The first through hole 516 is located on the X2 direction side of the third groove 515. The first through hole 516 penetrates the connecting part 16a5 of the power receiver 51 in the radial direction. When viewed in the radial direction, the shape of the first through hole 516 is a strip-shaped hole extending in the axial direction.

[0242] like Figure 57 , Figure 58 , Figure 62 and Figure 63 As shown, the power receiver 51 is connected to the drive gear 52 via a connecting rod 60 passing through the first through hole 516. Specifically, the inner wall of the drive gear 52 is provided with two limiting grooves 527, which are arranged symmetrically at the center. The connecting rod 60 is a crank component that passes through the first through hole 516. The middle protrusion of the connecting rod 60 is located inside the first through hole 516, and both ends of the connecting rod 60 are placed in the limiting grooves 527 inside the drive gear 52, so that the drive gear 52 rotates after the power receiver 51 receives the driving force. The extension direction of the connecting rod 60 is parallel to the line L1 connecting the force receiving protrusions 511.

[0243] like Figure 64As shown, the inner side of the drive end cover 14 is provided with a limiting part, which includes a first limiting wall 143. The first limiting wall 143 is located on the Y1 direction side of the slider 59, which can limit the movement of the slider 59 relative to the slider seat 58 in the Y1 direction. Furthermore, the slider 59 abuts against the plate-shaped member 582 of the slider seat 58 at both ends in the Z direction, and cannot move in the Z direction either; that is, the slider 59 can only move in the Y2 direction. Since the power receiver 51 passes through the fourth through hole 592 (circular hole) on the slider 59, the movement of the power receiver 51 and the slider 59 is synchronized, but the power receiver 51 does not drive the slider 59 to rotate.

[0244] like Figure 62 and Figure 63 As shown, the movement of the developing cartridge B during installation in this embodiment is similar to that in Embodiment Eleven. When the power receiver 51 is in the first state, during the process of the developing cartridge B being installed into the imaging device along the installation direction (Y1 direction), the extension directions of the connecting line L1, the connecting rod 60, and the first through hole 516 are all parallel to the Y direction or have an angle of less than 45°. The power receiver 51 interferes with the driving head and is pushed to move relative to the slider seat 58 along the opposite direction (Y2 direction) to the slider 59. That is, the connecting part 16a5 moves along the third through hole 585 and the first through hole 516 moves relative to the connecting rod 60 to avoid the driving head and prevent the two from colliding hard and causing damage. During the movement of the power receiver 51, the elastic member 16a3 is twisted and deformed. Once the drive head starts to rotate continuously, the power receiver 51 moves together with the slider 59 along the installation direction (Y1 direction) to the initial position under the action of the elastic member 16a3. At this time, the power receiver 51 only translates and does not rotate until the drive head rotates to a position where it can engage with the force receiving protrusion 511 of the power receiver 51. Then, the force receiving protrusion 511 engages with the rotating drive head.

[0245] like Figure 64 and Figure 65 As shown, when the power receiver 51 is in the second state, the extension direction of the first through hole 516 and the connecting rod 60 is perpendicular to the Y direction or the angle is greater than 45°. The power receiver 51 and the slider 59 cannot move along the Y direction (they cannot move along the installation direction Y1 and the opposite direction Y2). At this time, the power receiver 51 is exactly in the position where the force receiving protrusion 511 can normally engage with the drive head, and the developing cartridge B can be directly installed into place.

[0246] The other structures of the developing cartridge B in this embodiment are the same as those in Embodiment 11, and will not be described again here.

[0247] Example 14

[0248] This invention provides a detachable developing cartridge B installed in a drum assembly of an imaging device. The drum assembly contains a photosensitive drum. The length direction of the developing cartridge B in the horizontal plane is a first direction (X direction), the width direction of the developing cartridge B in the horizontal plane is a second direction (Y direction), and the vertical direction is a third direction (Z direction). The first, second, and third directions are perpendicular to each other. One end of the developing cartridge B in the second direction is the front end, and the other end is the rear end. One end of the developing cartridge B in the third direction is the upper end, and the other end is the lower end.

[0249] like Figure 66 and Figure 67 As shown, this embodiment provides a developing cartridge B, including a developing frame, a developing roller 13, a stirring frame (not shown), a driving assembly, and a contact action assembly.

[0250] like Figure 66 and Figure 67 As shown, the developing frame includes a cartridge body 210, a conductive end cover 12, and a drive end cover 14. One end of the developing cartridge is the drive end, and the other end is the conductive end. The cartridge body 210 has a toner cartridge for containing developer, which can be toner. A support portion 211 is provided at the drive end of the cartridge body 210. The drive end cover 14 is disposed on the end face of the support portion 211 of the cartridge body 210, and the conductive end cover 12 is disposed on the end face of the conductive end of the cartridge body 210; that is, the conductive end cover 12 and the drive end cover 14 are located on the outer sides of the two ends of the cartridge body 210 along its length.

[0251] like Figure 66 and Figure 67 As shown, the developing roller 13 is rotatably supported on the developing cartridge B. Specifically, the length direction of the developing roller 13 is aligned with the length direction of the developing cartridge B, and the axis of rotation of the developing roller 13 extends along the length direction of the developing cartridge B. The two ends of the developing roller 13 are supported by the support portion 211 and the conductive end cover 12, respectively. The developing roller 13 is located at the front end of the developing cartridge B in the width direction.

[0252] The stirring rack is rotatably supported on the developing cartridge and located in the powder hopper of the cartridge body 210. Specifically, the length direction of the stirring rack is consistent with the length direction of the developing cartridge. The stirring rack can rotate circumferentially along its axis in the length direction. The stirring rack can have one or more blades. By rotating, the blades are driven to stir the developer in the powder hopper to prevent the developer in the powder hopper from clumping. At the same time, it can also deliver the developer to the developing roller 13 and be attracted by the charged developing roller 13.

[0253] like Figure 66As shown, the drive assembly, located on the outside of the support portion 211 (the side facing away from the housing 210), includes a power receiver 51 and a gear set. The power receiver 51 receives the driving force of the imaging device and transmits it through the gear set, thereby driving the developing roller 13 and the stirring rack to rotate. The gear set includes a developing roller gear 29 and a stirring rack gear. The developing roller gear 29 is fixed to one end of the shaft of the developing roller 13 in the longitudinal direction and located outside the support portion 211. The developing roller gear 29 meshes with the power receiver 51, enabling the developing roller 13 to receive driving force and rotate. The stirring rack gear is fixed to one end of the stirring rack in the longitudinal direction and located outside the housing 210. The stirring rack gear meshes with the power receiver 51, enabling the stirring rack to receive driving force and rotate. Both the developing roller gear 29 and the stirring rack gear can mesh directly or indirectly with the power receiver 51.

[0254] An electrode assembly is disposed at the conductive end of the developing cartridge and located inside the conductive end cover 12. The conductive end cover 12 has an opening, through which at least a portion of the electrode assembly can be exposed, thereby being electrically connected to the imaging device. The electrode assembly is also electrically connected to the other end of the developing roller 13 in the longitudinal direction, thereby making the developing roller 13 charged and able to adsorb developer.

[0255] like Figures 66 to 72 As shown, the contact action component, when the developing cartridge B is installed and developing is in progress, can receive the force from the imaging equipment, driving the developing cartridge B to move closer to the photosensitive drum, so that the developing roller 13 contacts the photosensitive drum. The contact action component can be located at the drive end of the developing cartridge, at the conductive end of the developing cartridge B, or simultaneously at both the drive end and the conductive end of the developing cartridge B.

[0256] In this embodiment, the contact action component is simultaneously disposed on the driving end and the conductive end. The structure of the contact action component disposed on the driving end and the structure of the contact action component disposed on the conductive end can be the same or different. This embodiment uses two sets of contact action components with different structures as examples for illustration.

[0257] like Figures 66 to 71 As shown, in this embodiment, the contact component disposed at the drive end includes a first movable member 120 and a first elastic member 260. The first movable member 120 is disposed on the drive end cover 14 and is capable of receiving the force movement of the imaging device. The first movable member 120 in this embodiment is equivalent to the drive-side contact / spacer in the prior art.

[0258] like Figures 66 to 71As shown, the first movable member 120 is rotatably connected to the inner side of the drive end cover 14. The first movable member 120 includes a first connecting part 251, an arm part 252, a sliding part 513, a first rod part 254, and a first mating part 255. A first rotating shaft 2131 is provided on the upper inner side of the drive end cover 14. The first movable member 120 is rotatably connected to the first rotating shaft 2131 through the first connecting part 251. The first connecting part 251 is a hole structure adapted to the first rotating shaft 2131. The first rotating shaft 2131 is the rotation center of the first movable member 120. When viewed along the length direction, the rotation center is located outside the powder hopper and above the powder hopper. That is, when viewed along the length direction, the rotation center and the powder hopper do not overlap. The first connecting portion 251 is disposed at one end of the arm portion 252. In this embodiment, the portion of the arm portion 252 other than the end where the first connecting portion 251 is disposed is basically located outside the edge of the drive end cover 14. The end of the arm portion 252 away from the first connecting portion 251 is provided with a first support arm 2521 and a second support arm 2522. The first support arm 2521 and the second support arm 2522 intersect with the arm portion 252 and extend approximately along the width direction toward the developing roller 13. The first support arm 2521 and the second support arm 2522 are spaced apart in the length direction, and the first support arm 2521 is closer to the housing 210 than the second support arm 2522. That is, the first support arm 2521 extends inside the drive end cover 14, and the second support arm 2522 extends outside the drive end cover 14. The first support arm 2521 extends approximately to the middle position of the drive end cover 14 in the width direction. The end of the first support arm 2521 near the developing roller 13 is provided with a sliding portion 513.

[0259] Furthermore, such as Figure 68 and Figure 69 As shown, the inner side of the drive end cover 14 is provided with a first abutment portion 2132. The first abutment portion 2132 is a protruding ridge structure protruding towards the box body 210. The upper end surface of the first abutment portion 2132 is a first abutment surface 2132a, which is an arc surface with the rotation center (first rotating shaft 2131) as the center. The lower end surface of the sliding portion 513 is set as a second abutment surface 2531 that abuts against the first abutment surface 2132a. The second abutment surface 2531 is an arc surface that matches the curvature of the first abutment surface 2132a, so that the first movable member 120 can move along the first abutment surface 2132a in a predetermined direction.

[0260] like Figure 68 , Figure 69 and Figure 71As shown, one end of the first rod portion 254 is connected to the sliding portion 513, and the other end extends downwards approximately in the height direction to the lower edge of the drive end cover 14. A first mating portion 255 is disposed at the other end of the first rod portion 254. The first mating portion 255 does not protrude from the developing cartridge B, and a portion of the first mating portion 255 abuts against the lower end surface of the drive end cover 14, preventing the first movable member 120 from dislodging upwards. The first mating portion 255 is used to cooperate with the drive-side device pressing member 150 of the imaging device to receive force. The first mating portion 255 has a generally hook-shaped structure in the second direction.

[0261] like Figure 66 and Figure 70 As shown, the second arm 2522 has a detection component 256 at one end near the developing roller 13, which is used to cooperate with the imaging equipment to complete the recognition when the developing cartridge B is installed. The detection structure is located outside the drive end cover 14. When the first movable member 120 moves along the first abutment surface 2132a, the detection component 256 can trigger the detection mechanism inside the imaging equipment, enabling the imaging equipment to complete the recognition of the developing cartridge B. The detection component 256 is generally a long strip-shaped protrusion, with its length direction extending approximately along the width direction.

[0262] In this embodiment, the arm 252, the first support arm 2521, the second support arm 2522, the sliding part 513, the first rod part 254, the first mating part 255 and the tested part 256 are preferably integrally formed structures, but can also be separate structures.

[0263] like Figure 68 and Figure 69 As shown, the first elastic element 260 is disposed inside the drive end cover 14. One end of the first elastic element 260 is connected to the first movable member 120, and the other end is connected to the drive end cover 14. Specifically, the first elastic element 260 is a tension spring, disposed in front of the sliding part 513 of the first movable member 120 (closer to the developing roller 13 than the sliding part 513). The drive end cover 14 is provided with a first connecting block 2133 inside, and a second connecting block 2532 is provided at the front end of the sliding part 513. The two ends of the first elastic element 260 are respectively connected between the first connecting block 2133 and the second connecting block 2532. The first elastic element 260 is configured to remain in the initial position when the first movable member 120 is not subjected to external force.

[0264] like Figure 68 and Figure 69As shown, in this embodiment, the developing cartridge B is further provided with a buffer assembly. The buffer assembly is disposed inside the drive end cover 14. The buffer assembly includes a reset member 241 and a pusher member 242. The pusher member 242 is rotatably disposed inside the drive end cover 14. The pusher member 242 includes a first support rod 2421 and a second support rod 2422 that intersect each other. The end of the first support rod 2421 away from the intersecting end is provided with a shaft hole. The pusher member 242 is rotatably connected to a support shaft 2134 located near the upper end of the drive end cover 14 through the shaft hole. The support shaft 2134 is located at... On the lower side of the first rotating shaft 2131, the first support rod 2421 extends generally downward, and the second support rod 2422 extends generally in the width direction away from the developing roller 13. The end of the second support rod 2422 away from the intersection end is provided with a pushing protrusion 2422a. The first movable member 120 is provided with a pushed protrusion 2521a. The pushing protrusion 2422a abuts against the pushed protrusion 2521a, and the pushing protrusion 2422a is closer to the developing roller 13 than the pushed protrusion 2521a. The pushed protrusion 2521a can be provided on the first support arm 2521. The reset member 241 is connected between the push member 242 and the drive end cover 14. The push member 242 has a third connecting block 2423 near the intersection of the first support rod 2421 and the second support rod 2422. The drive end cover 14 has a fourth connecting block 2135, which is further away from the developing roller 13 than the third connecting block 2423. The two ends of the reset member 241 are connected to the third connecting block 2423 and the fourth connecting block 2135, respectively. The reset member 241 is preferably a tension spring, whose force can keep the pushing protrusion 2422a in contact with the pushed protrusion 2521a. When the first movable member 120 receives the force of the driving side device pressing member 150 and moves towards the developing roller 13, it pushes the push member 242 to rotate around the support shaft 2134, and the reset member 241 is stretched. When the imaging device removes the force, the push member 242 is reset under the action of the reset member 241. The purpose of setting up the buffer assembly is to adjust the pressure of the developing roller 13 on the photosensitive drum when the developing roller 13 and the photosensitive drum come into contact, so as to improve the developing quality.

[0265] like Figure 66 and Figure 72As shown, in this embodiment, the contact action component disposed at the conductive end includes a second movable member 270 and a second elastic member 34i2. The second movable member 270 is rotatably disposed inside the conductive end cover 12. The second movable member 270 includes a second connecting part 271, a second rod part 272 and a second mating part 273 connected in sequence. The conductive end cover 12 is provided with a second rotating shaft 2121 near the upper end. The second connecting part 271 is rotatably connected to the second rotating shaft 2121. The second connecting part 271 is a hole, that is, the second rotating shaft 2121 is the rotation center of the second movable member 270. When viewed along the length direction, the rotation center (second rotating shaft 2121) is located outside the powder hopper and above the powder hopper. That is, when viewed along the length direction, the rotation center and the powder hopper do not overlap. The second rod 272 extends downwards along the height direction to a position near the lower edge of the conductive end cover 12, meaning the second rod 272 spans the entire powder compartment from top to bottom. The second rod 272 acts as a force-bearing arm; its longer length reduces the force exerted by the conductive side device pressing member, making the second movable member 270 less prone to damage. The second mating part 273 is connected to the lower end of the second rod 272 and does not protrude from the developing cartridge B. It receives the force from the conductive side device pressing member. The second mating part 273 is a block-shaped component, and its surface near the developing roller 13 is set as an inclined surface sloping away from the developing roller 13 (i.e., the mating part does not have a hook-like structure similar to those in the prior art). Therefore, when the conductive side device pressing member moves in the N82 direction, it cannot hook the second mating part 273 and drive the second movable member 270 to move, thus preventing the application of a separation force to the developing cartridge B. In this embodiment, after the developing cartridge B is installed in place, the developing roller 13 will not separate from the photosensitive drum.

[0266] like Figure 72 As shown, the second elastic element 34i2 is a tension spring, disposed inside the conductive end cover 12. A fifth connecting block 274 is provided on the second connecting portion 271, and a sixth connecting block 2122 is provided inside the conductive end cover 12. The two ends of the second elastic element 34i2 are respectively connected to the fifth connecting block 274 and the sixth connecting block 2122. When the second movable member 270 receives the force from the conductive side device pressing member and rotates towards the developing roller 13, the second elastic element 34i2 is stretched and deformed. When the force from the conductive side device pressing member is removed, the deformation of the second elastic element 34i2 recovers, causing the second movable member 270 to return to its initial position.

[0267] In the prior art, after the developing cartridge B is installed in the imaging device, it needs to reciprocate several times in the N82 and N72 directions by the driving side device pressing member 150 and the conductive side device pressing member, so as to drive the developing cartridge B to make contact and separation movements relative to the photosensitive drum several times, so that the detected component 256 on the developing cartridge B moves with the developing cartridge B to trigger the detection mechanism in the imaging device several times, so as to complete the recognition operation of the developing cartridge B by the imaging device.

[0268] like Figures 66 to 72 As shown, this embodiment does not require the entire developing cartridge B to be moved to complete the recognition. In this embodiment, when the developing cartridge B is installed in the imaging device and the door of the imaging device is closed, the drive-side device pressing member 150 and the conductive-side device pressing member move together along the N7 direction and contact the first movable member 120 and the second movable member 270 respectively, applying a force F11, causing both to rotate towards the developing roller 13, and simultaneously causing the developing cartridge B to move towards the photosensitive drum. That is, the developing cartridge B has forward and upward movement, so that the developing roller 13 contacts the photosensitive drum. During this process, the second elastic member 34i2 is stretched and deformed, the push member 242 of the buffer assembly is pushed and rotated by the first movable member 120, and the reset member 241 is stretched, thereby adjusting the pressure of the developing roller 13 on the photosensitive drum. Then, the drive-side device pressing member 150 and the conductive-side device pressing member move together along the N8 direction. Since the second mating part 273 of the second movable member 270 hooks the conductive-side device pressing member, it will not receive the separation force of the conductive-side device pressing member. That is, the separation force will not act on the entire developing cartridge B, the developing cartridge B will not move, the developing roller 13 will not separate from the photosensitive drum, and the second movable member 270 returns to the initial position under the action of the second elastic member 34i2. At the drive end, the first mating part 255 on the first movable member 120 has a hook-shaped structure, which receives the force of the pressing member 150 of the drive side device along the N8 direction. That is, the first movable member 120 rotates along the first abutting surface 2132a (arc surface) away from the developing roller 13, and is touched by the detection mechanism in the imaging device by the detection object 256 on the first movable member 120 to complete one detection. During this process, the first elastic member 260 is stretched, the pushing force of the first movable member 120 on the pushing member 242 disappears, and the pushing member 242 is reset under the force of the reset member 241. Afterwards, the drive-side device pressing member 150 and the conductive-side device pressing member move again along the N72 direction, causing the first movable member 120 and the second movable member 270 to repeat the above process several times, so that the detected item 256 on the first movable member 120 touches the detection mechanism several times, thereby completing the recognition. In the subsequent reciprocating motion recognition process, the developing cartridge B as a whole will not move, the developing roller 13 and the photosensitive drum will always remain in contact, and in subsequent use, even if the imaging equipment does not need to perform development, the developing roller 13 and the photosensitive drum will not separate.

[0269] In this embodiment, the first movable member 120 and the second movable member 270 do not need to frequently move the developing cartridge B as a whole, thus reducing the force they bear, protecting the movable members from damage, and making the end caps that cooperate with the movable members less prone to damage, thereby extending the service life of the developing cartridge B.

[0270] Example 15

[0271] This embodiment provides another developing cartridge, which differs from Embodiment Fourteen in that the structure of the first movable member 120 is different.

[0272] like Figures 73 to 76 As shown, in this embodiment, the first movable member 120 omits the arm 252 and the first connecting part 251 provided on the arm 252, and the first rotating shaft 2131 is omitted from the drive end cover 14. The first movable member 120 moves in a predetermined direction by abutting against the second abutting part 2136.

[0273] Furthermore, such as Figures 73 to 76 As shown, the outer side of the drive end cover 14 is also provided with a second abutment portion 2136. The second abutment portion 2136 is a protruding ridge structure that protrudes from the outer side of the drive end cover 14. The upper end surface of the second abutment portion 2136 is a third abutment surface 2136a, which is an arc surface. The lower end surface of the second support arm 2522 of the first movable member 120 is a fourth abutment surface 2522a. The fourth abutment surface 2522a abuts against the third abutment surface 2136a to make the second abutment surface 2136a abut against the third abutment surface 2136a. Two arms 2522 are supported on the second abutment portion 2136. The second arm 2522 can move along the third abutment surface 2136a in a predetermined direction. The first abutment surface 2132a and the third abutment surface 2136a can be an arc surface with the same rotation center as the center, that is, the first movable member 120 moves around the rotation center. The rotation center is a non-solid rotation center, and its position is located outside the powder hopper, that is, when viewed along the length direction, the rotation center and the powder hopper have no overlapping part. The cooperation method between the first movable member 120 and the drive-side equipment pressing member 150 is the same as in Embodiment Fourteen.

[0274] The other structures and operating methods of the developing cartridge in this embodiment are the same as those in Embodiment Fourteen, and will not be described again here.

[0275] Example 16

[0276] This embodiment provides another developing cartridge, which differs from Embodiment Fourteen in that the structure of the second movable member 270 is different.

[0277] like Figure 77 and Figure 78As shown, in this embodiment, the second movable member 270 is rotatably disposed on the conductive end of the box body 210. A third rotating shaft 214 is provided on the end face of the conductive end of the box body 210. The third rotating shaft 214 is disposed near the lower end of the box body 210. The second connecting part 271 of the second movable member 270 is rotatably connected to the third rotating shaft 214, that is, the second movable member 270 moves with the third rotating shaft 214 as the rotation center.

[0278] like Figure 77 and Figure 78 As shown, in this embodiment, the housing 210 is provided with a clearance portion 215, which is a groove extending along the length direction. The clearance portion 215 is a strip-shaped groove recessed upward from the lower end surface of the housing 210. Viewed along the length direction, the rotation center of the second movable member 270 is located within the range of the clearance portion 215. The portion of the housing 210 other than the clearance portion 215 encloses the powder compartment, that is, viewed along the length direction, the rotation center of the second movable member 270 does not overlap with the powder compartment. With this arrangement, damage to the housing 210 caused by the disruption of the rotation center can be avoided, thus preventing powder leakage.

[0279] The other structures and operating methods of the developing cartridge in this embodiment are the same as those in Embodiment Fourteen, and will not be described again here.

[0280] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A developing cartridge, detachably mounted in the main body of an imaging device with a drum assembly, the drum assembly comprising a photosensitive drum, characterized in that, The developing cartridge includes: Developing frame; The developing roller is rotatably supported on the developing frame; and A support member, at least partially fixedly connected to the developing frame, is configured to act with the device body when the developing cartridge is installed in the device body, such that the developing cartridge is positioned at the contact position where the developing roller contacts the photosensitive drum.

2. The developing cartridge according to claim 1, characterized in that, The support includes a first support, which is a magnetic component. The magnetic component generates an attractive force with the metal part of the main body of the device, so that the developing cartridge is positioned at the contact position where the developing roller contacts the photosensitive drum.

3. The developing cartridge according to claim 1, characterized in that, The support includes at least one second support or at least one third support. Both the second and third support include a fixed part, an elastic part, and a movable part. The fixed part is fixedly connected to the developing frame. The movable part is elastically connected to the fixed part through the elastic part. The movable part abuts against the guide part of the main body of the device. The elastic part is compressed. The elastic force of the elastic part is used to position the developing cartridge at the contact position where the developing roller contacts the photosensitive drum.

4. The developing cartridge according to claim 1, characterized in that, The support includes at least one third support, the bottom of which forms a hook portion for hooking the bottom of the metal plate at the laser port of the main body of the device, the hook portion protruding from the developing frame.

5. The developing cartridge according to claim 1, characterized in that, The support member includes at least one third support member, which includes a connecting part, a positioning part, and a deformable part. The connecting part is fixedly connected to the developing frame, and the positioning part is used to abut against the positioned part of the main body of the device. The deformable part has a connecting end and a free end. The connecting end is fixedly connected to the connecting part and the positioning part respectively, and the free end is used to abut against the abutted part of the main body of the device. The deformable part deforms under the action of the abutted part, and the elastic force of the deformable part is used to position the developing cartridge at the contact position where the developing roller contacts the photosensitive drum.

6. The developing cartridge according to any one of claims 1-5, characterized in that, It also includes a bushing, the developing frame having a bushing hole, the bushing being fixedly installed in the bushing hole, and the end of the developing roller being rotatably installed in the bushing.

7. The developing cartridge according to any one of claims 1-5, characterized in that, It also includes a drive gear and a power receiver, the drive gear being rotatably supported on the developing frame, and the power receiver being drive-connected to the drive gear; The power receiver has a first state and a second state. When the power receiver is in the first state, it interferes with the drive head of the imaging device and is pushed to move in the opposite direction to the installation direction. When the power receiver is in the second state, it cannot move in the opposite direction to the installation direction.

8. The developing cartridge according to any one of claims 1-5, characterized in that, It also includes a movable member, which is movably disposed on the developing frame. The movable member is used to receive the force movement of the imaging device. The developing frame is provided with an abutting part that abuts against the movable member. When the movable member moves along the abutting part, when viewed along the axis of the developing roller, the rotation center of the movable member does not overlap with the powder hopper of the developing frame.

9. The developing cartridge according to any one of claims 1-5, characterized in that, It also includes a first movable component. The developing frame includes a driving-side developing cover disposed on the driving side of the developing cartridge. The first movable component is slidably disposed on the driving-side developing cover. The first movable component includes a gravity block. When the developing cartridge interacts with the installation detection device of the main body of the equipment, the first movable component is reset to the non-recognition position under the gravity of the gravity block.

10. A power receiver for receiving the driving force of a driving head of an imaging device, and applied to a developing cartridge as described in any one of claims 1-9, characterized in that, When the power receiver of the developing cartridge is in the first state, the drive head interferes with the power receiver and pushes the power receiver to move in the opposite direction to the installation direction of the developing cartridge.

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