Developing cartridge

Abstract

The application relates to the technical field of printing equipment, and provides a developing box, which comprises a first shell, a storage bin for storing a developer in the first shell, a developing roller rotatably arranged in the first shell, a storage device, a holding member movably arranged on a second shell in a third direction, an information storage member arranged on the holding member and comprising an electric contact surface, and a trigger member comprising a main body movably arranged in the second shell, a force receiving part arranged outside the second shell and an elastic part arranged on the main body, wherein the force receiving part protrudes from any part of the first shell on the first direction side of the second shell in a second direction; and the holding member has a force receiving surface in contact with the elastic part. The application can ensure the close connection between the chip component and the inside of the equipment under the condition of protecting the developing box.

Description

Technical Field

[0001] This invention relates to the field of printing equipment technology, and more particularly to a developing cartridge. Background Technology

[0002] Image forming equipment is a common office device, typically integrating printing, scanning, and copying functions. In the field of laser imaging, developer is a consumable used in image forming equipment to form images on printing media, and is usually stored in the developer cartridge. To enable information exchange between the developer cartridge and the image forming equipment, and to retrieve stored information such as product specifications, model, remaining developer level, or perform write / read operations, a chip component needs to be installed in the developer cartridge. After the developer cartridge is assembled into the equipment, this chip component enables communication and interface communication with the equipment's internal control system.

[0003] However, during installation, the chip components of existing developing cartridges are prone to rubbing against the communication connectors inside the equipment due to the side-mounted insertion of the developing cartridges, which can damage the chip components or their connectors. Furthermore, since the existing chip components are usually fixedly installed in the developing cartridges, poor contact can easily occur between the communication connectors and the chip components or their connectors after the developing cartridges are assembled into the equipment. This is obviously detrimental to the internal identification and information exchange of the developing cartridges within the equipment. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a developing cartridge that can ensure a tight connection between the chip components and the inside of the device while providing protective conditions for the developing cartridge.

[0005] This invention provides a developing cartridge, comprising: a first housing having an internal storage chamber for storing developer; a developing roller rotatably disposed on a first side of the first housing in a first direction and extending along a second direction for transferring developer from the storage chamber to the outside of the storage chamber; and a memory comprising: a second housing disposed at the first end; a retainer movably disposed on the second housing in a third direction, the retainer having a retracted position and a contact position on a movement trajectory on the second housing; and an information storage device disposed on the retainer, including an electrical contact surface located at the third end of the retainer, the electrical contact surface being exposed outside the second housing when the retainer is in the contact position and capable of contacting an electrical connection terminal of an image forming apparatus. When the retainer is in the retraction position, the electrical contact surface and the electrical connection end are separated, and the third direction intersects with the first direction; the trigger includes a main body portion movably disposed within the second housing along the first direction, a force receiving portion located outside the second housing in the first direction, and an elastic portion located on the main body portion and elastically protruding toward the third direction, the force receiving portion protruding in the second direction from any part of the first housing on the first direction side of the second housing; wherein, the retainer has a force-receiving surface that contacts the elastic portion, and when the trigger moves in the opposite direction of the first direction, the elastic portion is squeezed by the force-receiving surface and a pushing force is applied that can push the retainer to move along the third direction.

[0006] According to the developer cartridge provided in the embodiments of the present invention, when the developer cartridge is assembled into the internal mounting cavity of the image forming apparatus, because the trigger member protrudes from any part of the second housing in the second direction, in the mounting direction, i.e., the first direction, the trigger member can move relative to the second housing in the opposite direction of the first direction by abutting against a trigger part inside the apparatus, such as a protruding sidewall. This, in turn, moves the retaining member holding the information storage device in the third direction, i.e., the direction of connection with the communication interface inside the apparatus. This ensures that the information storage device maintains close contact with the communication interface and prevents poor contact due to installation accuracy errors, while also avoiding the phenomenon that the information storage device is prone to rubbing against the communication interface it is connected to. Furthermore, since the elastic part continues to provide elastic force to the retaining member after the electrical contact is achieved between the communication interface and the information storage device, so that the electrical contact surface is elastically connected with the communication interface, the connection tightness between the information storage device and the apparatus can be improved. Even if the apparatus is subjected to impact or collision, it can generate corresponding elastic deformation to prevent damage to the information storage device and the communication interface caused by the process.

[0007] In a preferred embodiment of the present invention, the elastic portion has a connecting end integrally formed with the main body and an extension end opposite to the connecting end, and the opening direction of the angle formed between the extension end and the connecting end relative to the main body is biased towards the first direction.

[0008] In a preferred embodiment of the present invention, the force receiving part includes a pressing slope near the retainer, the inclination direction of the pressing slope being the same as the inclination direction of the force-receiving surface; there is an accommodating space between the pressing slope and the extension end, and when the triggering member moves in the opposite direction of the first direction to a restricted position within the second housing, the pressing slope can contact the force-receiving surface and push the retainer to move a specified distance in the third direction.

[0009] In a preferred embodiment of the present invention, the force receiving part is provided with a first force receiving surface and a second force receiving surface on its first direction side, the first force receiving surface facing the first direction, and the second force receiving surface having the same inclination direction as the extrusion slope.

[0010] In a preferred embodiment of the present invention, a storage groove is provided in the main body, the storage groove extends along the first direction and the width of the storage groove is greater than the width of the inclined surface of the elastic part, and the length between the connecting end and the extending end is less than the length of the storage groove; when the trigger is viewed from the opposite direction of the third direction, the elastic part and the storage groove at least partially overlap.

[0011] In a preferred embodiment of the present invention, a transmission component is further included, the transmission component including a power receiver located at a first end of the first housing, the power receiver being exposed outside the first housing; wherein the power receiver is located in a first direction of the trigger, and the protrusion height of the exposed portion of the power receiver in the second direction is less than the protrusion height of the force receiving portion in the second direction.

[0012] In a preferred embodiment of the present invention, the memory further includes an elastic member disposed between the second housing and the trigger member, for providing an elastic force to move the trigger member relative to the second housing in a first direction.

[0013] In a preferred embodiment of the present invention, the second housing has a clearance groove near the retainer, the clearance groove being located in the opposite direction to the first direction of the retainer; wherein, when the trigger is in the initial state, the height of the extended end in the third direction is higher than the height of the end face of the second housing with the clearance groove, and when the elastic part moves along the opposite direction of the main body to push the retainer toward the third direction, the clearance groove is in the direction of movement of the elastic part and exposes the elastic part to the outside of the second housing.

[0014] In a preferred embodiment of the present invention, the clearance groove is provided with a limiting edge on the opposite side of the first direction, and the limiting edge is used to limit the elastic extension height of the elastic part.

[0015] In a preferred embodiment of the present invention, the second housing is provided with a guide groove extending in the third direction, and the retaining member has a fastening part that snaps into the guide groove.

[0016] Other features and advantages of the invention will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures and / or processes particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an image forming apparatus provided in an embodiment of the present invention;

[0018] Figure 2 A simplified structural diagram of the developing cartridge provided in an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the developing cartridge provided in an embodiment of the present invention;

[0020] Figure 4 This is a front view of a portion of the structure of a developing cartridge provided in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of a memory provided in an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the internal structure of a memory provided in one embodiment of the present invention;

[0023] Figure 7 An exploded view of a memory provided in one embodiment of the present invention;

[0024] Figure 8 A schematic diagram of the structure of a trigger element for a memory provided in another embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of the trigger element in the active position according to an embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the structure of the trigger element in the non-triggered state according to an embodiment of the present invention;

[0027] Figure 11 This is a schematic diagram of the structure of the trigger element in the trigger state according to an embodiment of the present invention;

[0028] Figure 12 This is a schematic diagram of the separation structure of the memory on the developing cartridge according to one embodiment of the present invention;

[0029] Figure 13 for Figure 12 A magnified view of a portion of point C in the middle;

[0030] Figure 14 This is a schematic diagram of the separation structure of the memory on the developing cartridge, provided for another embodiment of the present invention.

[0031] Explanation of icon numbers: 1. Equipment body, 11. Paper box, 12. Pick-up assembly, 13. Conveying assembly, 14. Transfer assembly, 15. Powder supply system, 16. Scanning assembly, 17. Fixing assembly, 18. Paper output assembly; 100 First housing, 110 Storage compartment, 120 Powder inlet, 130 First end, 140 Second end, 150 Engaging track, 151 Limiting block, 160 T-shaped guide bar; 200 developing rollers; 300 photosensitive drums; 400 mixing rack; 500 Transmission component, 510 Power receiver, 511 Dating protrusion; 600 Memory, 610 Second housing, 611 Clearance groove, 611a Limiting edge, 612 Slot, 613 Guide groove, 614 Buckle groove, 620 Holding member, 621 Buckle part, 622 Force-bearing surface, 630 Information storage member, 640 Trigger member, 641 Main body, 641a Storage groove, 642 Force receiving part, 642a Extrusion slope, 642b First force-bearing surface, 642c Second force-bearing surface, 643 Elastic part, 643a Connecting end, 643b Extension end, 643c Elastic member, 643d Force-bearing component, 650 Elastic member. Detailed Implementation

[0032] The following detailed description of the embodiments of the present invention, in conjunction with the accompanying drawings, will provide a thorough understanding of how the present invention uses technical means to solve technical problems and achieve technical effects, enabling its implementation. It should be noted that these specific descriptions are merely intended to facilitate a clearer understanding of the present invention by those skilled in the art, and are not intended to limit the scope of the invention. For example, the terms "first" and "second" mentioned in the embodiments of the present invention are not intended to limit the invention, but are merely used to indicate the sequence numbers of multiple identical or similar devices or mechanisms. Those skilled in the art can readjust these sequence numbers for ease of description or during the organization of technical solutions. Furthermore, alternative solutions are described for some mechanisms in different embodiments, and these alternatives can be applied to other identical or similar devices or mechanisms. As long as there is no conflict, the various embodiments and features in each embodiment of the present invention can be combined with each other, and the resulting technical solutions are all within the protection scope of the present invention.

[0033] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1 As shown, one embodiment of the present invention provides an image forming apparatus, including an apparatus body 1 and a paper tray 11, a pickup assembly 12, a conveying assembly 13, a transfer assembly 14, a developing assembly 15, a scanning assembly 16, a fixing assembly 17, and a paper discharge assembly 18 disposed within the apparatus body 1. The apparatus body 1 has a paper conveying path. The paper tray 11 stores stacked paper for printing. The pickup assembly 12 includes a pickup roller that contacts the stacked paper and feeds the paper into the paper conveying path. The conveying assembly 13 includes a correction roller and a feed roller. The correction roller is used to correct the position of the paper in the paper conveying path, and the feed roller is used to transport the paper in the paper conveying path. The developing assembly 15 forms an image composed of powder within itself and transfers the image to the transfer assembly 14. The transfer assembly 14 transfers the image in the paper conveying path. After acquiring the image, the paper is further conveyed to the fixing assembly 17, which fixes the image on the paper surface by heating. Finally, the printed paper is discharged outside the apparatus body 1 by the paper discharge assembly 18.

[0035] The scanning component 16 includes a laser emitting unit and an optical component for deflecting the laser emitted by the laser emitting unit. The optical component may consist of multiple optical parts to deflect the laser onto the developing component 15 for the imaging process of the developing component 15.

[0036] The present invention provides a developing cartridge in a first aspect embodiment, see below. Figures 2 to 14This developing cartridge is used in an image forming apparatus and is detachably housed within the apparatus. It serves as part of the developing assembly, providing powder to the apparatus, including toners, toners, etc., that can be consumed by the apparatus. In this embodiment, the developing cartridge includes a first housing 100 and a photosensitive drum 300 and a developing roller 200 disposed within the first housing 100. The photosensitive drum 300 is rotatable relative to the first housing 100 about a first axis. Its outer wall has a photosensitive surface made of photosensitive material. Under light irradiation, the photosensitive material changes the polarity of its surface charge, forming an electrostatic latent image. This latent image further attracts the powder after receiving it, forming an image. The developing roller 200 is rotatable relative to the first housing 100 about a second axis, located on a first side of the first housing in a first direction, and extends along the second direction, wherein the first direction is as follows: Figure 3 In the direction X, the second direction is as follows Figure 3 In the direction Y, the first housing 100 has a storage chamber 110 for storing powder and a powder feeding port 120 connected to the storage chamber 110. The developing roller 200 is disposed at the powder feeding port 120, with one side of its surface in contact with the surface of the photosensitive drum 300 and the other side in contact with the powder in the storage chamber 110, thereby conveying the powder to the surface of the photosensitive drum 300 during rotation.

[0037] The developing cartridge also includes a stirring rack 400, which is disposed within the first housing 100 and rotates around a third axis. In this embodiment, the stirring rack 400 is located within the storage chamber 110 and stirs the powder within the storage chamber 110. The stirring rack 400 includes a stirring shaft and stirring blades disposed on the stirring shaft. During the rotation of the stirring shaft around its own axis, the stirring blades push the powder within the storage chamber 110 into the powder feeding channel between the powder feeding port 120 and the storage chamber 110. The developing roller 200 contacts the powder in the powder feeding channel and conveys it toward the photosensitive drum 300.

[0038] Continue reading Figure 3The first housing 100 has a first end 130 and a second end 140 opposite to each other in the second direction, including a main housing and an end cap detachably disposed at the first end 130. A transmission member 500 is disposed at the first end 130. The transmission member 500 includes a power receiver 510, which is rotatably disposed on the first end 130 and its axis extends along the second direction. The end cap is provided with a through hole. The power receiver 510 includes a power engagement structure disposed in the through hole and exposed outside the end cap. In this embodiment, the power engagement structure includes at least one mating protrusion 511 disposed along the axial direction. The drive shaft in the image forming device can be connected to the power receiver 510 in the opposite direction of the second direction and is provided with a groove structure or other adapting structure to engage with the mating protrusion 511 and can be driven by the drive shaft. Of course, other driving force receiving structures in the prior art can also be used, all of which are within the scope of implementation of this embodiment. In addition, the transmission component 500 also includes a first gear, an intermediate gear, and a second gear. The first gear is located at the end of the developing roller 200, the second gear is located at the end of the stirring frame, and the intermediate gear is located between the power receiving component 510 and the second gear. The first gear and the intermediate gear mesh with the power receiving component 510. The first gear directly receives the driving force from the power receiving component 510 to drive the developing roller 200 to rotate, and the second gear receives the driving force from the power receiving component 510 through the intermediate gear to drive the stirring frame to rotate. Thus, the stirring frame and the developing roller 200 rotate simultaneously to perform the process of transporting the developer in the storage chamber 110.

[0039] Furthermore, the developing cartridge in this embodiment also includes a memory 600. The memory 600 comprises a second housing 610, a retainer 620, an information storage device 630, and a trigger 640. In this embodiment, the second housing 610 is detachably connected to the first housing 100 and is disposed at the first end 130, specifically on the end cap. The retainer 620 is movably disposed on the second housing 610 and has a retraction position and a contact position on the movement trajectory of the second housing 610. The retraction position and the contact position are located at opposite ends of the movement trajectory. The information storage device 630 is disposed on the retainer 620 and includes an electrical contact surface located on a third direction of the retainer 620. This third direction intersects the first direction and is perpendicular to the second direction. Figure 4 The direction P in the image forming apparatus. The information storage unit 630 can store electronic information about the developing cartridge, such as its capacity, remaining developer level, and / or can read / write information, enabling information exchange between the developing cartridge and the internal control system of the image forming apparatus, such as... Figures 5 to 7In the embodiment shown, the information storage device 630 is configured as a chip, which is detachably mounted on the retainer 620. The electrical contact surface is the electrical connection end face of the chip exposed on the outside of the retainer 620. Of course, in other embodiments, the information storage device 630 may include the chip and an intermediate connecting piece electrically connected to the chip. The intermediate connecting piece is made of conductive material. The chip is hidden inside the retainer 620, and the electrical contact surface is disposed on the chip and exposed on the outside of the retainer 620. This realizes information exchange between the developing cartridge and the outside. Regardless of the method used above or in the prior art to realize information exchange between the information storage device 630 and the device, it is within the scope of the present invention.

[0040] See details Figures 5 to 7 The trigger 640 includes a main body 641, a force receiving part 642, and an elastic part 643. The main body 641 is movably disposed within the second housing 610 along a first direction. The force receiving part 642 and the elastic part 643 are disposed on the main body 641 and can move together with the main body 641. In this embodiment, the force receiving part 642 is located outside the second housing 610 in the first direction and can interfere with components located outside the developing cartridge. Under the action of external interference, the trigger 640 as a whole is positioned relative to the second housing. The body 610 moves along the straight line of the first direction, and the elastic part 643 protrudes toward the third direction and contacts or connects with the retainer 620, which can provide elastic force to the retainer 620. Specifically, when the trigger 640 moves along the fourth direction, which is the opposite direction of the first direction, the elastic part 643 is deformed due to the pressure of the retainer 620 after contact with the retainer 620. At the same time, the deformation is converted into an elastic force on the retainer 620, pushing the retainer 620 to move relative to the second housing 610 in the third direction.

[0041] More specifically, the retaining member 620 has a force-receiving surface 622 that contacts the elastic part 643. The force-receiving surface 622 is biased towards the fourth direction. The triggering member 640 has an initial position and an operating position on its movement trajectory relative to the second housing 610. The initial position is located in the first direction of the operating position. The elastic part 643 is placed between the main body 641 and the force-receiving surface 622. When the elastic part 643 moves along the fourth direction with the main body 641, the contact portion between the elastic part 643 and the force-receiving surface 622 continuously applies pressure to the elastic part 643 along the inclined direction of the force-receiving surface 622. Therefore, the elastic part 643 deforms and provides a third-direction pushing force to the operating part, pushing the retaining member 620 to move in the third direction. The contact position is located in the third direction of the retraction position, such as... Figure 11 Position B in the middle, when the retainer 620 is in the retracted position, such as Figure 10In position A of the image forming apparatus, if the developing cartridge is located in the assembly cavity, there is an assembly distance between the electrical contact surface and the electrical connection terminal on the apparatus, preventing them from making contact. If the retainer 620 is in the contact position, the information storage unit 630 can contact the electrical connection terminal and generate information interaction with the apparatus when the developing cartridge is in the assembly cavity. Accordingly, when the trigger 640 is in the initial position, the retainer 620 is in the retracted position. Under this positional relationship, when the developing cartridge is assembled into the apparatus, the retainer 620 can prevent interference between the electrical contact surface and the electrical connection terminal. When the trigger 640 is in the active position, it can push the retainer 620 to remain in the contact position. At this time, the developing cartridge is assembled into the apparatus so that the electrical contact surface and the electrical connection terminal make elastic contact.

[0042] In practical implementation, the device has a force-applying part at the assembly cavity that interferes with the force receiving part 642. This force-applying part can be a protruding sidewall inside the assembly cavity, or other force that can push the force receiving part 642 relative to the second housing 610 in the fourth direction during the assembly of the developing cartridge. The force receiving part 642 protrudes from any part of the first housing 100 on the first direction side of the second housing 610 in the second direction. (See reference...) Figure 10 and Figure 11 If this part is located in the front end area on the front side of the memory 600, when the developing cartridge is viewed from the fourth direction, the force receiving part 642 is at least partially exposed on the outside of the first housing 100 in the second direction. Since the installation direction is the first direction, during the assembly of the developing cartridge, the force receiving part 642 is blocked by the force applying part and moves relative to the second housing 610 in the fourth direction. At this time, the trigger 640 moves from the initial position to the action position, and the linkage holding part 620 moves from the retraction position to the contact position in the third direction. Finally, when the developing cartridge is fully assembled into the assembly cavity, the electrical contact surface is in the contact position with the electrical connection end.

[0043] With this structure, the retainer 620 can be in the retracted position before the developing cartridge is assembled, thus avoiding interference between the electrical contact surface and the electrical connection end before they are in place. When the developing cartridge is assembled, the retainer 620 moves toward the electrical connection end due to the trigger 640, and maintains elastic contact with the electrical connection end under the action of the elastic part 643, so that the electrical contact surface is safely connected to the electrical connection end. At the same time, it ensures tight contact between the electrical contact surface and the electrical connection end, which can solve the defect of easy loosening caused by rigid contact. It has a certain elastic displacement margin to prevent rigid collision damage or poor contact caused by equipment vibration or impact collision, thus taking into account both assembly and installation and preventing loosening.

[0044] In one embodiment, see [reference] Figure 7The elastic portion 643 has a connecting end 643a integrally formed with the main body 641 and an extension end 643b opposite to the connecting end 643a. Under the action of the connecting end 643a, the extension end 643b is suspended relative to the main body 641 in a third direction. The opening direction of the angle between the extension end 643b and the connecting end 643a relative to the main body 641 is biased towards a first direction. Therefore, the body of the elastic portion 643 has the ability to return to its elastic deformation relative to the main body 641. When the extension end 643b approaches the main body 641, the connecting end 643a deforms to provide a restoring elastic force. For example, in... Figure 7 In the illustrated embodiment, the extended end 643b in the unpressurized state forms an angle with the clamping portion relative to the connecting end 643a. The angle is acute. When the elastic part 643 in the tilted state moves in the fourth direction with the main body 641, it is subjected to pressure from the retainer 620, generating a deformation force that pushes the retainer 620 to move in the third direction. This structure allows the elastic part 643 to smoothly contact the retainer 620, smoothly moves the retainer 620 when the trigger 640 is triggered by the force-applying part, and allows the retainer 620 to continuously provide elastic force to maintain contact after it is connected to the electrical connection end. In this embodiment of the structure, the production cost of implementing this method is reduced and the problem of assembly difficulties is reduced. In particular, for the small component structure in this embodiment, the production efficiency is usually not improved due to assembly problems. This embodiment can realize production through automated processes. For example, in the process of assembling the memory 600, the information storage component 630 is first detachably snapped into the retainer 620, and then the retainer 620 is inserted into the third-direction opening of the second housing 610 and the trigger 640 is inserted into the first direction opening of the second housing 610, thereby meeting the requirements of automated production process.

[0045] Of course, in other embodiments, the alternative structure is that the elastic part 643 is composed of an elastic element 643c and a force-receiving element 643d. The force-receiving element 643d is connected to the main body 641, and the elastic element 643c is connected between the force-receiving element 643d and the main body 641. When the force-receiving element 643d deforms or changes position relative to the main body 641, the elastic part 643 can provide a corresponding elastic force according to the deformation or position change that occurs. This elastic force acts on the retaining element 620 to push the retaining element 620 to move in a third direction. Specifically, extending from the above embodiments, in this embodiment, the force-receiving component 643d in the elastic part 643 has the same connecting end 643a and extending end 643b as in the aforementioned embodiments. A compression spring is provided between the extending end 643b and the main body 641. The upper end of the compression spring is sleeved in the upper spring post of the extending end 643b, and the lower end is sleeved in the spring post of the main body 641. When the elastic part 643 compresses the retaining part and deforms, the elastic member 643c generates a deformation force due to compression, causing the elastic part 643 to push the retaining member 620 to move at the contact position with the retaining member 620. Of course, the force-receiving component 643d can also be designed as a movable member with an active contact surface, and the movable member is movably disposed in the main body 641, for example in... Figure 8 In the illustrated embodiment, the movable member is movably disposed in the main body 641 along a third direction, having a movable portion movably embedded within the main body 641 and an active portion located in the third direction of the main body 641. The elastic member 643c can be configured as a compression spring and placed between the main body 641 and the active portion. Thus, the active portion contacts the retaining member 620. When the main body 641 moves relative to the second housing 610 in a fourth direction, the active portion is compressed by the retaining member 620 and moves relative to the main body 641 in the opposite direction of the third direction. During the movement, the elastic deformation force of the elastic member 643c is triggered, causing the retaining portion to move along the third direction. In the design structure of this embodiment, the overall structure is more compact. Compared with the integral form in the previous embodiment, its deformation method has more controllable deformation direction and deformation amount, and it is less prone to elastic misalignment deformation. Furthermore, it can continuously provide elastic deformation capability, ensuring good contact between the electrical contact surface and the electrical connection end.

[0046] The contact surface between the retainer 620 and the elastic part 643 can be set as an inclined edge on the elastic part 643, or it can be set as a force-bearing inclined surface of the retainer 620. The force-bearing inclined surface is one implementation of the force-bearing surface 622 described in the foregoing embodiments. See [reference needed]. Figure 9In this embodiment, the contact surface is the inclined edge of the elastic part 643 and the combination with the force-receiving inclined surface of the retainer 620. The force-receiving inclined surface is inclined downward in the first direction. During the movement of the elastic part 643, the inclined edge and the force-receiving inclined surface slide into contact, which can reduce the sliding friction between the retainer 620 and the elastic part 643, making it easier for the trigger 640 to move relative to the second housing 610 in the fourth direction and link with the retainer 620. In an expandable manner, when combined with the force-bearing part having a force-bearing member 643d as a movable member in the previous embodiment, the inclined edge is set as the working surface of the working part, wherein the inclination angle of the working surface relative to the main body 641 is the same as the inclination angle of the force-bearing inclined surface relative to the main body 641. Therefore, the working surface and the force-bearing inclined surface are in surface contact. Even if the relative position of the main body 641 in the second housing 610 changes, the way the retainer 620 is in surface contact with the working part will also change, thereby improving the pressure-bearing effect of the working part and avoiding the phenomenon of offset in the third direction that may be caused by tolerances during point contact action, thus improving the contact accuracy between the electrical contact surface and the electrical connection end.

[0047] exist Figures 5 to 9 In the illustrated embodiment, the force receiving part 642 includes a pressing slope 642a near the retainer 620. The inclination of the pressing slope 642a is the same as that of the force-receiving slope, that is, the inclination direction is the same, but the inclination angle relative to the main body 641 may be different. When the inclination direction is the same, there is an accommodating space between the pressing slope 642a and the extension end 643b. When the trigger 640 moves along the fourth direction to the restricted position within the second housing 610, the pressing slope 642a can contact the force-receiving slope and push the retainer 620 to move a specified distance along the third direction. In this embodiment, on the third direction of the main body 641, the extension end 643b, in a non-stressed state, is located above the extrusion slope 642a and has a movable distance between it and the extrusion slope 642a. The relative height positions of the extension end 643b and the extrusion slope 642a are a first position and a second position, respectively. When the extension end 643b moves from the first position to the second position or below due to being extruded by the retainer 620, the extrusion slope 642a replaces the extension end 643b and contacts the stress surface 622. At this time, In the opposite direction of the third direction, the force-bearing surface 622 and the extrusion slope 642a are in rigid-elastic contact, which can provide sufficient support force to support the contact between the information storage component 630 and the electrical connection end. This improves the support performance of the elastic force generated by the elastic part 643 after excessive deformation on the retainer 620, while also maintaining the elastic force applied by the elastic part 643 to the retainer 620. This allows the information storage component to make elastic contact with the electrical connection end in the third direction, which can eliminate the impact of vibration caused by the graphics forming device, whether inside or outside.

[0048] Additionally, see Figure 7 The main body 641 has a receiving groove 641a. The receiving groove 641a extends along a first direction and its width is greater than the width of the inclined surface of the elastic part 643. The length between the connecting end 643a and the extending end 643b is less than the length of the receiving groove 641a. When the trigger 640 is viewed from the opposite direction of the third direction, the elastic part 643c and the receiving groove 641a at least partially overlap, so that the receiving groove 641a can receive the elastic part 643. In a specific implementation, when the main body 641 is in a deep position in the second housing 610, after the connecting end 643a passes the end of the force-bearing surface 622, the body of the elastic part 643 is squeezed by the retaining member 620 and folds relative to the main body 641. At this time, the receiving groove 641a can receive the elastic part 643 and allow the elastic part 643 to continue to provide elastic force to the retaining member 620.

[0049] exist Figures 5 to 7 In the illustrated embodiment, the second housing 610 has a clearance groove 611 near the retainer 620. The clearance groove 611 is located in the fourth direction of the retainer 620. The extension end 643b is higher than the end face of the bracket with the clearance groove 611 in the third direction when the trigger 640 is in the initial state. The clearance groove 611 is used to accommodate the elastic part 643 without being blocked by the second housing 610. When the elastic part 643 pushes the retainer 620 to move in the third direction along the opposite direction of the first direction with the main body 641, the clearance groove 611 is in the moving direction of the elastic part 643 and allows the elastic part 643c to be exposed outside the second housing 610. This can effectively reduce the space occupied by the memory 600 in the developing cartridge and inside the device, which is in line with the design trend of device miniaturization.

[0050] In another scalable embodiment, the second housing 610 is movably engaged within the first housing 100 along a fourth direction, see reference. Figure 12 The first housing 100 is provided with a locking track 150 arranged in the fourth direction, and a limiting block 151 is provided at the end of the locking track 150 or at other positions of the first housing 100. The bottom of the second housing 610 is provided with a locking groove 612 that engages with the locking track 150. The locking groove 612 allows the second housing 610 to be snapped into the locking track 150 and, after being assembled, is limited to the position by the limiting block 151. At this time, the surfaces of the locking track 150 and the second housing 610 are clamped together by friction. This structure realizes the detachable connection of the second housing 610 in the first housing 100.

[0051] To further improve the contact tightness between the information storage device 630 and the electrical connection terminal, and to ensure a smooth transition during assembly, please refer to... Figures 5 to 9The trigger member 640 has a transition section and an operating position on its movement trajectory relative to the second housing 610. In the transition section, the elastic part 643 remains in contact with the force-receiving surface 622 of the retainer 620 and acts on the retainer 620, pushing the retainer 620 to move in a third direction. The force-receiving part 642 is provided with a support portion such as the compression ramp 642a described in the previous embodiment on the side near the retainer 620, which can support the retainer 620. When the trigger member 640 passes through the transition section, the elastic part 643... 3. The trigger 640 is ejected from the relief groove 611 after detaching from the force-bearing surface 622. At this time, the elastic part 643 is reset and the extension end 643b is stuck on the outside of the retainer 620, so that the trigger 640 can no longer move relative to the second housing 610 in the first direction. The support part supports the retainer 620 and maintains close contact between the information storage device 630 and the electrical connection end, ensuring the tightness of the overall structure after assembly. The trigger 640 will not sway left and right relative to the second housing 610 on the movement trajectory due to positional loosening. When the developing cartridge is disassembled from the assembly cavity, the memory 600 as a whole can move relative to the first housing 100 in the first direction due to the slot 612 of the second housing 610 and the engaging track 150 of the first housing 100. At this time, the memory 600 falls off relative to the first housing 100 when the developing cartridge is disassembled, and the memory 600 is disengaged from the electrical connection terminal after the developing cartridge is removed from the assembly cavity. This structure not only ensures effective protection of the information storage device 630 during assembly, but also locks the contact position of the information storage device 630 with the electrical connection terminal after the developing cartridge is assembled in place, making it easy to maintain and recycle the memory 600.

[0052] The clearance groove 611 is provided with a limiting edge 611a on the fourth direction side. The limiting edge 611a is used to limit the elastic extension height of the elastic part 643 to avoid the elastic part 643 being excessively suspended outside the second housing 610. At the same time, the limiting edge 611a provides the positioning structure in the aforementioned embodiment to provide a clamping force to limit the movement of the elastic part 643 and thus restrict the main body 641 to the working position.

[0053] Additionally, the memory 600 also includes an elastic member 650, see [link / reference] Figure 6 and Figure 7 The elastic member 650 is disposed between the second housing 610 and the trigger member 640 to provide an elastic force to push the trigger member 640 relative to the bracket along the first direction. In this embodiment, the elastic member 650 is designed as a compression spring. The elastic member 650 can provide a compact force to hold the trigger member 640 and the retainer 620 inside the second housing 610, and at the same time, when the developing cartridge is disengaged from the assembly cavity, it resets the trigger member 640 and causes the retainer 620 to fall back to the retracted position.

[0054] Continue reading Figure 5The force receiving part 642 has a first force-receiving surface 642b on its first direction side, which faces the first direction. The second force-receiving surface 642c has the same inclination direction as the extrusion slope 642a. The first force-receiving surface 642b can directly receive the force from the first direction, while the second force-receiving surface 642c can adapt to the assembly direction to drive the trigger 640 to move relative to the second housing 610 in the fourth direction. In specific implementation, the developing cartridge is usually inserted into the assembly cavity at an angle. Therefore, in the angled assembly direction, the second force-receiving surface 642c first contacts the force-applying part and pushes the trigger 640 to move relative to the second housing 610 in the fourth direction. In the subsequent assembly process along the first direction, the first force-receiving surface 642b is blocked by the force-applying part until the developing cartridge is assembled in place.

[0055] In another embodiment, the power receiver is exposed outside the first housing 100 and located in the first direction of the trigger 640, and the protrusion height of the exposed portion of the power receiver in the second direction is less than the protrusion height of the force receiving portion 642 in the second direction. Because the power receiver is located in front of the trigger 640, the drive head for docking with the power receiver in the image forming apparatus is located in front of the force applying portion. Under this structure, the force applying portion separates the transmission structure from the memory 600, which serves as an information storage structure, preventing mutual interference. Furthermore, the memory 600 is located in a relatively rearward position, which minimizes interference with components inside the developing cartridge, resulting in a more rational and compact overall structure of the developing cartridge.

[0056] In an additional embodiment, the second housing 610 is provided with a guide groove 613 extending along a third direction, and the retaining member 620 has a fastening portion 621 that snaps into the guide groove 613. Under the guiding action of the guide groove 613, the retaining member 620 can only move relative to the second housing 610 along the straight line in the third direction. Furthermore... Figure 13 and Figure 14 In the illustrated embodiment, a T-shaped guide bar 160 is provided on the first housing 100 along the second direction. The T-shaped guide bar 160 and the surface of the second housing 610 form a channel. The first housing 100 is provided with a snap-fit ​​groove 614 adapted to the T-shaped guide bar 160. When the second housing 610 is snapped onto the T-shaped guide bar 160 through the snap-fit ​​groove 614, the T-shaped guide bar 160 prevents the memory 600 from moving relative to the first housing 100 in the first direction or the fourth direction in the assembly direction of the developing cartridge, thereby adapting to the structure of the memory 600 in this embodiment.

[0057] Finally, it should be noted that the above description is merely the preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and simple substitutions to the technical solutions of the present invention using the disclosed methods and techniques without departing from the scope of the present invention; all of these variations fall within the protection scope of the present invention.

Claims

1. A developing cartridge, characterized in that, include: The first casing has a storage compartment for storing developer inside; A developing roller is rotatably disposed on a first side of the first housing in a first direction and extends along a second direction for transferring developer in the storage chamber to the outside of the storage chamber, wherein the second direction is perpendicular to the first direction; Memory, having: The second housing is disposed at the first end of the first housing; A retainer is movably disposed on the second housing along a third direction, and the retainer has a retraction position and a contact position on the movement trajectory of the second housing; An information storage device is disposed on the retainer and includes an electrical contact surface located at a third-direction end of the retainer. When the retainer is in the contact position, the electrical contact surface is exposed outside the second housing and can contact the electrical connection terminal of the image forming device. When the retainer is in the retracted position, the electrical contact surface is separated from the electrical connection terminal. The third direction intersects the first direction and is perpendicular to the second direction. The trigger includes a main body portion movably disposed within the second housing along the first direction, a force receiving portion located outside the second housing in the first direction, and an elastic portion located in the main body portion and elastically protruding toward the third direction, wherein the force receiving portion protrudes from any part of the first housing in the second direction on the side of the second housing in the first direction. The retainer has a force-receiving surface that contacts the elastic part. When the trigger moves in the opposite direction of the first direction, the elastic part is squeezed by the force-receiving surface and a pushing force is applied that can push the retainer to move in the third direction.

2. The developing cartridge according to claim 1, characterized in that, The elastic portion has a connecting end integrally formed with the main body and an extension end opposite to the connecting end. The opening direction of the angle formed between the extension end and the connecting end relative to the main body is biased towards the first direction.

3. The developing cartridge according to claim 2, characterized in that, The force receiving part includes a pressing slope near the retainer, and the inclination direction of the pressing slope is the same as the inclination direction of the force receiving surface; There is an accommodating space between the extrusion ramp and the extension end. When the trigger moves in the opposite direction of the first direction to the restricted position within the second housing, the extrusion ramp can contact the force-bearing surface and push the retainer to move a specified distance in the third direction.

4. The developing cartridge according to claim 3, characterized in that, The force receiving part is provided with a first force receiving surface and a second force receiving surface on its first direction side. The first force receiving surface faces the first direction, and the second force receiving surface is inclined in the same direction as the extrusion slope.

5. The developing cartridge according to claim 3, characterized in that, The main body is provided with a storage groove, which extends along the first direction and the width of the storage groove is greater than the width of the inclined surface of the elastic part. The length between the connecting end and the extending end is less than the length of the storage groove. When the trigger is viewed from the opposite direction of the third party, the elastic part and the storage groove at least partially overlap.

6. The developing cartridge according to claim 5, characterized in that, It also includes a transmission component, which includes a power receiver located at a first end of the first housing, the power receiver being exposed outside the first housing; The power receiver is located in the first direction of the trigger, and the protrusion height of the exposed portion of the power receiver in the second direction is less than the protrusion height of the force receiving portion in the second direction.

7. The developing cartridge according to claim 2, characterized in that, The memory also includes an elastic member disposed between the second housing and the trigger, which provides an elastic force to move the trigger relative to the second housing in a first direction.

8. The developing cartridge according to claim 2, characterized in that, The second housing has a clearance groove near the retainer, the clearance groove being located in the opposite direction to the first direction of the retainer; Wherein, when the trigger is in the initial state, the height of the extended end in the third direction is higher than the height of the end face of the second housing with the clearance groove. When the elastic part moves in the opposite direction of the main body along the first direction and pushes the retainer toward the third direction, the clearance groove is in the moving direction of the elastic part and exposes the elastic part to the outside of the second housing.

9. The developing cartridge according to claim 8, characterized in that, The clearance groove has a limiting edge on the opposite side of the first direction, and the limiting edge is used to limit the elastic extension height of the elastic part.

10. The developing cartridge according to any one of claims 1 to 9, characterized in that, The second housing is provided with a guide groove extending in the third direction, and the retaining member has a fastening part that snaps into the guide groove.

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