CN218383668U - Developing cartridge and process cartridge - Google Patents

Abstract

The application discloses developing cartridge and processing box, this developing cartridge include box body, developer roll, send whitewashed roller, play powder sword and electrode, the box body has first lateral wall and second lateral wall, the developer roll with send the powder roller and rotationally locate the box body, go out the powder sword set up in the box body, the electrode includes first contact site and the first connecting portion of electricity connection, first contact site set up in first lateral wall is used for being connected with the imaging device electricity, just first contact site with send the powder roller or go out at least one electricity in the powder sword and connect, first connecting portion set up in the second lateral wall, just first connecting portion with the developer roll electricity is connected. This application makes the one end of developing box be located to some of electrode, and the other end of developing box is located to another part of electrode, has reduced the electrode and has received the influence of developing roller and the rotatory vibrations of powder feeding roller, has improved the stability that each part is connected electrically.

Description

Developing cartridge and process cartridge

Technical Field

The application relates to the technical field of image formation, in particular to a developing box and a processing box comprising the developing box.

Background

A process cartridge detachably mountable to an electrophotographic apparatus generally includes a developing cartridge and a drum cartridge, the developing cartridge being detachably mountable to the drum cartridge. Among them, the developing cartridge is a detachable portion widely used in the electronic image forming apparatus. The developing box includes box body, developing roller, send whitewashed roller and electrode, and developing roller and send whitewashed roller rotatably to set up on the box body, and the developing roller includes developing roller axle and the main part of parcel outside developing roller axle. The electrode is arranged on the box body and is electrically connected with the developing roller and the powder feeding roller. When the developing cartridge is mounted in the electrophotographic apparatus, the electrodes are brought into contact with contact terminals in the electrophotographic apparatus, and a certain voltage is supplied to the developing roller and the powder feed roller through the electrophotographic apparatus.

However, in the developing cartridge with the existing structure, the electrode is only positioned at one end of the developing cartridge, the influence of the rotation vibration of the developing roller and the powder feeding roller is large, and the electric connection is unstable.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems of the prior art described above, a primary object of the present application is to provide a developing cartridge in which electrical connection is stable.

In order to achieve the above purpose, the following technical solutions are specifically adopted in the present application:

the application provides a developing cartridge, including:

a box having a first sidewall and a second sidewall;

the developing roller is rotatably arranged on the box body;

the powder feeding roller is rotatably arranged on the box body;

the powder discharging knife is arranged on the box body;

the electrode comprises a first contact part and a first connecting part which are electrically connected, the first contact part is arranged on the first side wall and is used for being electrically connected with an imaging device, and the first contact part is electrically connected with at least one of the powder feeding roller or the powder discharging knife;

the first connecting portion is disposed on the second sidewall, and the first connecting portion is electrically connected to the developing roller.

Compared with the prior art, the developing box of this application includes the box body, the developer roll, send the powder roller, go out powder sword and electrode, the box body has first lateral wall and second lateral wall, the developer roll rotationally locates the box body with sending the powder roller, it sets up in the box body to go out the powder sword, the electrode is including the first contact site and the first connecting portion of electricity connection, first contact site sets up in first lateral wall, be used for being connected with the image device electricity, and first contact site is connected with sending at least one electricity in powder roller or the play powder sword, first connecting portion set up in the second lateral wall, and first connecting portion is connected with the developer roll electricity. This application makes the one end of developing box be located to some of electrode, and the other end of developing box is located to another part of electrode, has reduced the electrode and has received the influence of developing roller and the rotatory vibrations of powder feeding roller, has improved the stability that each part is connected electrically.

Drawings

Fig. 1 is a schematic view of a drum cartridge according to a first embodiment of the present application;

FIG. 2 is a schematic view of another perspective of the drum cartridge according to the first embodiment of the present application;

fig. 3 is a schematic view of a developing cartridge according to a first embodiment of the present application;

FIG. 4 is a schematic view of another perspective view of the developing cartridge according to the first embodiment of the present application;

fig. 5 is a schematic view of a first side wall of the developing cartridge according to the first embodiment of the present application;

fig. 6 is an exploded view of a first side wall of the developing cartridge according to the first embodiment of the present application;

fig. 7 is a schematic view of a developing cartridge according to the first embodiment of the present application with the protective cover removed from a second sidewall;

fig. 8 is a side view of a process cartridge according to a second embodiment of the present application;

fig. 9 is a schematic perspective view of a developing cartridge according to a third embodiment of the present application;

fig. 10 is a schematic view from another perspective of a developing cartridge according to a third embodiment of the present application;

FIG. 11 is a schematic view showing the installation of the electrode according to the third embodiment of the present application;

fig. 12 is a schematic mounting diagram of a second connecting portion according to a third embodiment of the present application;

fig. 13 is a schematic mounting diagram of the first contact portion, the connection portion, and the second contact portion according to the third embodiment of the present application;

FIG. 14 is a schematic view of the third embodiment of the present application after the electrodes are mounted;

fig. 15 is a schematic perspective view of a developing cartridge according to a fourth embodiment of the present application;

FIG. 16 is a schematic perspective view of a fourth developing cartridge according to an embodiment of the present disclosure with a sliding cover removed from a first end thereof;

FIG. 17 is an enlarged view taken at A in FIG. 16;

FIG. 18 is an enlarged view of FIG. 16 at B;

fig. 19 is a schematic perspective view of a first holder, a doctor blade, an electrode, and a developing roller of a developing cartridge according to a fourth embodiment of the present application;

fig. 20 is a front view of a supporting member and a chip of a developing cartridge according to a fifth embodiment of the present application in a second direction;

fig. 21 is a schematic perspective view of a developing cartridge according to a sixth embodiment of the present application;

FIG. 22 is an enlarged view at C of FIG. 21;

fig. 23 is a schematic perspective view of a second end of a developing cartridge according to a sixth embodiment of the present application with an electrode protection cover removed;

fig. 24 is a schematic perspective view showing a part of an electrode of a developing cartridge according to a sixth embodiment of the present application;

fig. 25 is a schematic perspective view of another part of an electrode of a developing cartridge according to a sixth embodiment of the present application;

fig. 26 is a schematic perspective view of a developing cartridge according to a seventh embodiment of the present application;

FIG. 27 is an enlarged schematic view taken at D in FIG. 26;

fig. 28 is a schematic perspective exploded view of the seventh embodiment of the present application, showing the developing cartridge without the driving-end protecting cover, the coupling, the developing gear, and the powder feeding gear;

fig. 29 is a schematic perspective view of a developing cartridge of a seventh embodiment of the present application with an electrode protective cover removed;

fig. 30 is a schematic perspective view showing a part of an electrode of a developing cartridge according to a seventh embodiment of the present application;

fig. 31 is a schematic perspective view of another view of the development cartridge according to the eighth embodiment of the present application with the drive-end cover removed;

fig. 32 is a schematic perspective view of another part of an electrode of a developing cartridge according to an eighth embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; unless specified or indicated otherwise, the term "plurality" means two or more, and the term "plurality" means two or more; the terms "connected", "fixed", and the like are to be construed broadly and may, for example, be fixed or removable or integral or electrical; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it should be understood that the terms "upper" and "lower" used in the description of the embodiments of the present application are used in a descriptive sense only and not for purposes of limitation. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Example one

Fig. 1 is a schematic view of a drum cartridge according to a first embodiment of the present application; FIG. 2 is a schematic view of another perspective of the drum cartridge according to the first embodiment of the present application; fig. 3 is a schematic view of a developing cartridge according to a first embodiment of the present application; FIG. 4 is a schematic view of another perspective of the developing cartridge according to the first embodiment of the present application; fig. 5 is a schematic view of a first side wall of the developing cartridge according to the first embodiment of the present application; fig. 6 is an exploded view of a first side wall of the developing cartridge according to the first embodiment of the present application; fig. 7 is a schematic view of a developing cartridge according to the first embodiment of the present application with the protective cover removed from the second sidewall.

As shown in fig. 1 to 7, the process cartridge includes a developing cartridge 2 and a drum cartridge 1, the developing cartridge 2 being detachably mounted on the drum cartridge 1, the developing cartridge 2 containing a developer therein. The drum cartridge 1 includes a frame 10, a photosensitive drum 11, a charger 14, a lock switch 15, a paper feed roller 16, and a handle 17. The frame 10 is capable of mounting and dismounting the developing cartridge 2, and an opening for exposing a storage medium of the developing cartridge 2 is provided on the frame 10, and the opening is matched with the shape of a protecting cover of the developing cartridge 2. The photosensitive drum 11 is rotatably supported on the frame 10, and the photosensitive drum 11 is made of a photosensitive material for forming an electrostatic latent image. The charger 14 is disposed above the photosensitive drum 11. In operation, the charging device is used for uniformly charging the surface of the photosensitive drum 11. A lock switch 15 is provided to the frame 10 for effecting locking or separation of the developing cartridge 2 and the drum cartridge 1. The paper feed roller 16 is provided to the frame 10 for guiding the conveying direction of the paper. A handle 17 is attached to the frame 10 for holding the drum cartridge 1.

As shown in fig. 1-2, the frame 10 includes a first frame 101 and a second frame 102, and the first frame 101 and the second frame 102 are disposed opposite to each other in the rotational axis direction of the photosensitive drum 11. The photosensitive drum 11, the charger 14, the paper feed roller 16, and the handle 17 are located between the first frame 101 and the second frame 102. The frame 10 also has a front end 103 and a rear end 104 which are oppositely disposed in its width direction, an intermediate position between the front end 103 and the rear end 104 being a middle portion, and the width direction of the frame 10 is perpendicular to the rotational axial direction of the photosensitive drum 11. The photosensitive drum 11 and the charger 14 are disposed at the front end 103, the handle 17 and the lock switch 15 are disposed at the rear end, and the paper feed roller 16 is disposed at the middle. When the developing cartridge is loaded into the drum cartridge, the distance between the storage medium of the developing cartridge and the first frame 101 is smaller than the distance between the storage medium of the developing cartridge and the second frame 102.

As shown in fig. 2, the lock switch 15 is located at the first frame 101. When the mounting of the developing cartridge 2 and the drum cartridge 1 is completed, the lock switch 15 comes into contact with the lock projection on the developing cartridge 2 to achieve the locking of the developing cartridge 2 and the drum cartridge 1. When the user presses the lock switch 15, the lock switch 15 applies a force to the lock projection of the developing cartridge 2 that enables the developing cartridge 2 to be lifted in the drum cartridge 1, and the separation of the developing cartridge 2 from the drum cartridge 1 is achieved, facilitating the user to load and unload the developing cartridge 2.

As shown in fig. 3 to 4, the developing cartridge 2 includes a cartridge body 20, a storage medium 22 (chip), an electrode 7, a paper guide rib 26, a detected mechanism 24, a developing roller 25, a powder feed roller 29 (shown in fig. 6), a protective cover 5, a drive gear 23, and an agitator. The cartridge body 20 is for accommodating developer, and has a first side wall 201 and a second side wall 202 which are oppositely disposed in the axial direction of the developing roller 25. The developing roller 25 is connected between the first side wall 201 and the second side wall 202, and is rotatable about its axial direction. Specifically, the developing roller 25 includes a developing roller shaft and a main body portion wrapped outside the developing roller shaft, and the main body portion can adsorb carbon powder. The powder feed roller 29 includes a powder feed roller shaft for feeding the developer in the cartridge body 20 to the developing roller 25. The protective cover 5 is disposed on the second sidewall 202. The driving gear 23 is provided on an outer surface of the second sidewall 202 for receiving a driving force of the image forming apparatus and transmitting to other components of the developing cartridge. The agitator is located inside the developing cartridge for rotationally agitating the developer to avoid the developer from caking, and a rotational axis of the agitator extends in an axial direction thereof.

As shown in fig. 3, the detection mechanism 24 is provided on the first side wall 201 for being detected by the image forming apparatus to provide the image forming apparatus with information about the freshness and the specification of the developing cartridge, and the like. The detected mechanism 24 is farther from the developing roller 25 than the electrode 7 in the width direction of the developing cartridge. The detected mechanism 24 is farther from the developing roller 25 than the storage medium 22 in the width direction of the developing cartridge.

As shown in fig. 4, the storage medium 22 is supported by the cartridge body 20 and located on the second sidewall 202 of the developing cartridge, and is disposed on the protective cover 5 by clipping or adhering for storing information related to the developing cartridge 2. The storage medium 22 has four electrical contact surfaces that are electrically connected to four contacts of the imaging device, respectively. One side of the storage medium 22 is provided with a battery, four electrical contacts are located on the other side of the storage medium 22, and the frame 10 exposes at least a portion of the electrical contacts of the storage medium 22. The protective cover 5 has a card slot for mounting and supporting the storage medium 22, the card slot is adapted to the shape of the storage medium 22, and the protective cover 5 exposes at least a part of the electrical contact surface of the storage medium 22. When the process cartridge is loaded into the image forming apparatus, the electrical contact surface of the storage medium 22 is in contact with the image forming apparatus through the opening of the frame 10.

Further, the developing cartridge 2 further comprises a first support 8 and a second support 9, the first support 8 is located on the first side wall 201 and is mounted on the cartridge body in a clamping manner, and the first support 8 is made of an insulating material. The second bracket 9 is located on the second side wall 202, and is used for supporting the developing roller and the powder feeding roller and is made of insulating materials.

At least a part of the electrode 7 is disposed on the first sidewall 201 and the second sidewall 202 for supplying a certain voltage to the developing roller and the powder feeding roller. Specifically, the electrode 7 includes a first contact portion 70 and a first connection portion 71, the first contact portion 70 is located on the first sidewall 201, and the first contact portion 70 is supported by the first bracket 8 of the developing cartridge, and has a contact surface 700, the contact surface 700 is a plane or arc structure for contacting with the image forming apparatus, so as to electrically connect the image forming apparatus and the powder feeding roller shaft through the first contact portion 70 to provide a certain voltage to the powder feeding roller. First connecting portion 71 is located second lateral wall 202, and one side and the protecting cover 5 butt that box body was kept away from to first connecting portion 71, and protecting cover 5 presses first connecting portion 71 to the end of developing roller axle and powder feeding roller axle, guarantees the stability of being connected electrically between first connecting portion 71 and developing roller axle and the powder feeding roller axle. Further, the first connection portion 71 includes a first compression spring 72 and a second compression spring 73 connected, the first compression spring 72 being in contact with the distal end of the developing roller shaft, the second compression spring 73 being in contact with the distal end of the powder feeding roller shaft, thereby electrically connecting the developing roller and the powder feeding roller. Wherein the first bracket 8 has an opening exposing the contact surface 700 of the first contact part 70. The first connection portion 71 is made of an elastic conductive material, and the developing roller shaft and the powder feeding roller shaft are made of a conductive material.

After the developing cartridge is loaded into the image forming apparatus, the contact surface 700 contacts the image forming apparatus and supplies power to the toner feed roller, the developing roller is electrically connected to the first contact portion 70 through the first connecting portion 71 and the toner feed roller shaft and is supplied with a certain voltage, and the developing roller and the toner feed roller are charged and adsorb and transfer toner.

The paper guide ribs 26 are provided in plural, at least a part of the paper guide ribs 26 extending in the width direction of the developing cartridge, and the extending direction of at least a part of the paper guide ribs 26 intersecting the width direction of the developing cartridge, the conveying direction of the paper being guided by the paper guide ribs 26. Wherein the width direction of the developing cartridge is perpendicular to the axial direction of the developing cartridge.

The developing roller extends in the axial direction of the developing cartridge, the surface of the contact surface 700 is not perpendicular to the axial direction of the developing cartridge, the included angle between the contact surface 700 and the axial direction of the developing cartridge is an acute angle, and preferably, the included angle between the contact surface 700 and the axial direction of the developing cartridge is 80 °.

In an alternative of this embodiment, the area of the four electrical contact surfaces of the storage medium 22 can be made large enough, and at least a part of the electrical contact surfaces overlap with the end of the main body portion of the developing roller, ensuring stability of electrical connection of the storage medium 22 with the image forming apparatus.

In an alternative of the present embodiment, the side of the storage medium 22 may not be provided with a battery.

In the alternative of the present embodiment, the first contact portion 70 may be made of conductive metal, and may be equivalently replaced by other conductive materials, such as a wire, a spring (tension/compression/torsion), conductive rubber, conductive resin, and the like.

In an alternative of the present embodiment, the first connection portion 71 may also employ a conductive metal sheet, a wire, a spring (tension/compression/torsion), a conductive rubber, a conductive resin, or the like. The second bracket for supporting the developing roller and the powder feeding roller at the second side wall may be made of a conductive material so that the developing roller and the powder feeding roller are electrically connected by the second bracket, so that the second bracket can replace the first connecting portion 71. Alternatively, the first connecting portion 71 is eliminated, and the first contact portion 70 at the first side wall and the developing roller shaft end at the second side wall are connected by a wire extending in the developing cartridge axial direction.

In an alternative of this embodiment, the rotation axis of the agitator may be inclined with respect to the developing cartridge axial direction, and the gear mounted on the agitator shaft end employs a bevel gear.

In an alternative of this embodiment, the paper guide ribs 26 may not be provided, but the conveying direction of the paper may be guided directly by the smooth curved surface of the developing cartridge.

Example two

Fig. 8 is a side view of a process cartridge according to a second embodiment of the present application, and the specific structure of a developing cartridge according to the second embodiment is the same as that of the first embodiment except for the specific description.

As shown in fig. 8, the developing cartridge further includes a first guide portion 27 and a second guide portion 28 at the second side wall of the developing cartridge, and the first guide portion 27 and the second guide portion 28 are projections extending in the axial direction of the developing cartridge for guiding the correct position of the mounting of the developing cartridge 2 to the drum cartridge 1 in cooperation with the first frame 101 of the drum cartridge 1 when the developing cartridge is mounted to the drum cartridge 1. The second guide portion 28 is supported by the first frame 101, and can bear the weight of the developing cartridge 2. After the first guide portion 27 is mounted in place, the first guide portion 27 does not contact the first frame 101, a gap is formed between the first guide portion and the first frame, and the first guide portion does not play a positioning role. The second guide portion 28 is located between the rotational axis of the drive gear 23 and the rear end 104 in the width direction of the drum cartridge, or the second guide portion 28 is flush with the rotational axis of the drive gear 23.

Other technical features are the same as those of the first embodiment and can achieve the same or similar technical effects, and thus, detailed descriptions thereof are omitted, and specific reference may be made to the description of the first embodiment.

Example three:

as shown in fig. 9 and 10, the developing cartridge 1 in the present embodiment includes a cartridge body 10, a developing element 20 (developing roller), a power receiving member 21, a detection mechanism 30, an electrode 60, a first protective cover 40, a second protective cover 50, and a chip 35. The cartridge body 10 accommodates developer therein, and the cartridge body 10 includes a second side wall 11, a first side wall 12, a top cover 16, a bottom wall 15, a front end 13, and a rear end 14, the second side wall 11 and the first side wall 12 being disposed opposite to each other in a direction a (left-right direction), the top cover 16 and the bottom wall 15 being disposed opposite to each other in an up-down direction, and the front end 13 and the rear end 14 being disposed opposite to each other in a direction B (front-rear direction). The first protective cover 40 is located at the second side wall 11 and covers at least a portion of the power receiving member 21 for protecting the power receiving member 21. The second protective cover 50 is disposed on the first sidewall 12 and covers at least a portion of the detecting mechanism 30 for protecting the detecting mechanism 30. Portions of the sensing mechanism 30 and the electrode 60 are located on the first sidewall 12. The developing member 20 is mounted at the front end 13 of the cartridge body and partially exposed outside the cartridge body 10. The length direction of the box body 10 is set to be the left-right direction, the width direction of the box body 10 is set to be the front-back direction, the height direction of the box body 10 is set to be the up-down direction, the front-back direction is perpendicular to the up-down direction, and the left-right direction is perpendicular to the front-back direction and the up-down direction.

Specifically, the cartridge body 10 may further internally mount a powder feeding member 22 (powder feeding roller) and an agitating member (not shown), the powder feeding member 22 being in contact with the developing member 20 to feed the developer to the developing member 20, the agitating member being for agitating the developer in the cartridge body 10. The bottom wall 15 of the box body 10 is provided with a plurality of ribs 17, the plurality of ribs 17 are arranged on the bottom wall 15 along the left-right direction, and the ribs 17 can be used for reinforcing the strength of the front bottom wall 15 and guiding the paper conveying direction.

The power receiving member 21 is provided on the second side wall 11 and is capable of rotating about a first axis extending in the left-right direction, and receives the driving force output from the image forming apparatus through the power receiving member 21, so that the driving force is transmitted from the outside of the developing cartridge 2 to each component in the developing cartridge 2, and the developing element 20, the powder feeding element 22, the stirring element, and the detecting mechanism 30 can all operate under the driving force transmitted from the power receiving member 21.

In an embodiment, the detection mechanism 30 is located on the first side wall 12, and in other embodiments, the detection mechanism 30 may also be located on the second side wall 11 according to the position of the detection mechanism in the imaging device. The detection mechanism 30 is used for being detected by a detection device in the image forming apparatus, thereby transmitting information of the developing cartridge to the image forming apparatus. The information of the developing cartridge 2 in the present embodiment includes new and old information of the developing cartridge, capacity information and area information of the developing cartridge, etc., which are not listed here.

The chip 35 is mounted on the first protecting cover 40, and can be mounted on the first protecting cover 40 by means of pasting, clamping, etc., and the chip 35 is closer to the front end 13 of the box body than the rear end 14 of the box body, and the chip 35 is disposed downward. The chip 35 is used to contact a chip contact portion in the image forming apparatus so that the image forming apparatus can read the developing cartridge information stored in the chip 80. The chip in the embodiment can also be used for the imaging device to identify whether the developing cartridge is installed on the imaging device, and can also identify whether the installed developing cartridge is originally produced or compatibly produced, and is a new product or recycling developing cartridge information such as a product.

As shown in fig. 11, the electrode 60 includes a first contact portion 61, a second contact portion 63, a second contact portion 64 and a first connection portion 65, the second connection portion 63 is connected to the first contact portion 61 and the second contact portion 64, the first contact portion 61 is used for receiving a voltage in the image forming apparatus, and the second contact portion 64 is electrically connected to the developing member 20 (developing roller) so that the developing member 20 receives the voltage in the image forming apparatus, thereby facilitating the developing member 20 to adsorb the developer and convey the developer to the photosensitive member. The first connection portion 65 has one end in contact with the shaft end of the developing member 20 and the other end in contact with the shaft end of the powder feeding member 22 (powder feeding roller), thereby transmitting a voltage to the powder feeding member 22.

Further, the developing cartridge further includes a holder 52, the holder 52 is provided on the first side wall 12 for holding the first contact portion 61, and the holder 52 is also for holding one axial end of the developing element 20.

As shown in fig. 12, the first connection portion 65 includes a developing contact portion 651 and a powder feeding contact portion 652, the developing contact portion 651 and the powder feeding contact portion 652 are connected by a conductive member, which is a conductive wire in this embodiment, and the developing contact portion 651 and the powder feeding contact portion 652 are coil metal members. The first protective cover 40 includes a first fixing section 401 and a second fixing section 402, the developing contact section 651 is fixedly attached to the first fixing section 401, and the powder feeding contact section 652 is fixedly attached to the second fixing section 402; in the present embodiment, the developing contact portion 651 is attached to the first fixing member 401 by snap-fitting or interference fitting, and the powder feeding contact portion 652 may be fixed in the same manner as the developing contact portion 651.

As shown in fig. 13, one end of the second connection portion 63 is connected to the first contact portion 61, and the other end is connected to the second contact portion 64, but the second connection portion 63, the first contact portion 61, and the second contact portion 64 are integrally formed in this embodiment, and may be formed separately, which is not limited herein.

The second connecting portion 63 includes a first mounting portion 600, a second mounting portion 601, and a third mounting portion 602, the first mounting portion 600 includes a through hole, and a screw hole of the second cover 50 is aligned with the through hole of the first mounting portion 600, so that the electrode 60 can be fixed while the cover is fixed by a screw; in this embodiment, the second cover 50 or the protrusion on the second sidewall may be inserted into the through hole to fix the electrode.

As shown in fig. 14, when assembled, the third mounting portion 602 is snapped to the second side wall 11, the second mounting portion 601 is snapped to the first side wall 12, and the second connecting portion 63 is located on the bottom wall 15 and adjacent to the rib 17. The second contact portion 64 contacts the shaft end of the developing member 20, and the first connection portion 65 contacts the shaft end of the powder feeding member 22, thereby transmitting the voltage from the powder feeding member 22.

The first contact portion 61, the second connection portion 63, and the second contact portion 64 of the electrode 60 in the present embodiment may be formed of a conductive resin, or may be formed of a metal member; the second mounting portion 601 and the third mounting portion 602 may be claws formed at the second connecting portion 63, and when the second connecting portion 63 is formed of a metal member, the second mounting portion 601 and the third mounting portion 602 may be snap-in holes that are in interference fit or snap-in with fixing protrusions arranged on the bottom wall of the cartridge body or the first side wall and the second side wall.

There are different requirements for the positions of the electrode, the chip and the detection gear in the existing developing box, for example, the electrode and the detection mechanism are both located on the first side wall, and the chip is located on the second side wall; in the embodiment, the electrode extends from the first side wall to the second side wall, so that the size of the electrode is increased, the applicable environment of the developing box is enhanced, and the universality of the developing box is enhanced.

Example four

Fig. 15 is a schematic perspective view of a developing cartridge according to a fourth embodiment of the present application; the developing cartridge 2 is detachably mountable to an electrophotographic apparatus including a drum assembly, and specifically, the developing cartridge 2 is detachably mountable to the drum assembly. As shown in fig. 15, the developing cartridge 2 includes a cartridge body 10, a developing roller 20, a powder feeding roller (not shown), a stirring member (not shown), a drive-end protective cover 30, a slide cover 40, a transmission assembly 6, a chip 50, a support member 51, a detection mechanism 70, a powder discharging blade 80, and a detection-end protective cover.

The box body 10 is used for containing developer, the box body 10 is provided with a first end 11 and a second end 12 which are oppositely arranged in a first direction, the first end 11 of the box body 10 is provided with a first side wall and a support 13, the support 13 is installed outside the first side wall, and the support 13 is used for supporting and fixing the developing roller 20 and the powder feeding roller. The box body 10 has a third end and a fourth end in the two directions, the box body 10 is provided with an opening at the third end, and the fourth end is provided with a handle.

The developing roller 20 is rotatably installed at an opening position near the third end of the cartridge body 10, and the developing roller 20 extends in a first direction, which is rotatable about a developing roller axis extending in the first direction. Specifically, the developing roller 20 includes a developing roller main body and a developing roller shaft, and the developing gear 6b is further mounted at an end of the developing roller 20 near the first end of the cartridge body 10. The powder feeding roller is for feeding the developer contained in the cartridge body 10 to the developing roller 20, and the stirring member is for stirring the developer to prevent it from caking and feeding the developer to the powder feeding roller.

The supporting member 51 is located at the first end 11 together with the chip 50, and the chip 50 is used to store information related to the developing cartridge 1. The supporting member 51 is used to support the chip 50, and the chip 50 has at least one electrical contact surface arranged along a first direction. The driving end protecting cover 30 is located at the first end 11 of the box body 10, the sliding cover 40 and the detecting end protecting cover are located at the second end 12 of the box body 10, and the detecting mechanism 70 of the developing box 2 is protected by the sliding cover 40 and the detecting end protecting cover.

The transmission assembly 6 is located at a first end 11 of the cartridge body 10 for receiving a driving force from the electrophotographic apparatus and transmitting the driving force to other components of the developing cartridge 2. Specifically, the transmission assembly 6 includes a coupling 6a, a developing gear 6b, a coupling gear 6c, a powder feeding gear (not shown in the figure), and an agitating gear (not shown in the figure).

The coupling 6a is rotatable about a first axis extending in a first direction, and the coupling 6a has a recess in the first direction, the recess being capable of mating with a driving device in the electrophotographic apparatus, and a coupling gear 6c is provided closer to the first end 11 of the cartridge body 10 than the recess, the coupling gear 6c being capable of transmitting a driving force received from the electrophotographic apparatus to other components of the developing cartridge 1. The developing gear 6b is mounted to one end of the developing roller 20 to be rotatable about a second axis extending in the first direction together with the developing roller 20, and the developing gear 6b is engaged with the coupling gear 6c for receiving a driving force from the coupling 6 a. The powder feeding gear is located at one end of the powder feeding roller, is rotatable together with the powder feeding roller about a third axis extending in the first direction, and is meshed with the coupling gear 6c for receiving a driving force from the coupling 6 a. The stirring gear is located at one end of the stirring element, is rotatable together with the stirring element about a fourth axis extending in the first direction, and is also for receiving a driving force from the coupling 6 a.

The detecting mechanism 70 is located at the second end 12 of the cartridge body 10, and the detecting mechanism 70 includes a driving portion and a detected portion, the driving portion receives a driving force from the electronic imaging device, so that the detected portion moves, and the detected portion can trigger the detecting portion in the electronic imaging device, so that the electronic imaging device can identify the developing cartridge 1 and read the information of the old and the new capacity of the developing cartridge 1.

The powder discharging blade 80 includes a blade and a blade holder, the powder discharging blade 80 extends in a first direction, and the powder discharging blade 80 is closer to a third end of the cartridge body 10 than a fourth end of the cartridge body in a second direction. The blade may contact the developing roller for controlling a thickness of the developer carried on the surface of the developing roller.

FIG. 16 is a schematic perspective view of a fourth developing cartridge according to an embodiment of the present disclosure with a sliding cover removed from a first end thereof; FIG. 17 is an enlarged view taken at A in FIG. 16; FIG. 18 is an enlarged view of FIG. 16 at B;

fig. 19 is a schematic perspective view of the first holder, the doctor blade, the electrode, and the developing roller of the developing cartridge according to the fourth embodiment of the present application. As shown in fig. 16 to 19, the developing cartridge 1 further includes an electrode 90, and the electrode 90 includes a first contact portion 91, a second connection portion 92, and a first connection portion 93.

The first contact portion 91 is used for contacting with an electrode in the electronic imaging device to form an electrical connection. One end of the first contact portion 91 is connected to one end of the second connection portion 92, the other end of the second connection portion 92 is connected to one end of the doctor blade 80, the other end of the doctor blade 80 is connected to one end of the first connection portion 93, the other end of the first connection portion 93 is connected to the bracket 13, and the bracket 13 supports one ends of the developing roller 20 and the powder feeding roller in the first direction. Specifically, the first contact portion 91, the second connection portion 92, the first connection portion 93, and the bracket 13 are all made of a conductive material, which may be a metal material or a conductive resin material, and the like, and this is not particularly limited. Alternatively, the first contact portion 91, the second connection portion 92, the first connection portion 93, and the bracket 13 may be made of the same conductive material, or may be made of a plurality of different materials. In this embodiment, the first contact portion 91, the second connection portion 92, and the first connection portion 93 are all plate-shaped materials, alternatively, the first contact portion 91, the second connection portion 92, and the first connection portion 93 may also be formed in other shapes such as a linear shape, a column shape, or a ring shape, and the first contact portion 91, the second connection portion 92, and the first connection portion 93 may be formed in the same shape or in different shapes, which are not limited to this.

Optionally, the first contact portion 91 is fixedly connected to the second connection portion 92, and the connection manner may be integrally formed, or may also be separately and fixedly connected by other manners such as welding and clamping, which is not limited specifically. The other end of the second connecting portion 92 is fixedly connected to one end of the powder discharging blade 80, and one end of the first connecting portion 93 is fixedly connected to the other end of the powder discharging blade 80. In this embodiment, the other end of the second connecting portion 92 and one end of the first connecting portion 93 are connected to the lower portions of the two ends of the doctor blade 80, and are fixed to the case 10 together by screws. Wherein, the connecting position can be positioned below the tool rest and also below the blade; optionally, the other end of the second connection portion 92 and one end of the first connection portion 93 may also be connected to two ends of the powder discharging knife 80 by various connection methods such as welding, hooking, or buckling, which is not limited in particular.

As shown in fig. 18, in the present embodiment, the first connecting portion 93 is mounted in the second side wall of the developing cartridge 1, and the other end of the first connecting portion 93 extends to the mounting direction of the bracket 13 through the second side wall upper groove. When the bracket 13 is mounted on the case 10, the bracket 13 passes through the groove on the second sidewall so that the other end of the first connection part 93 is clamped by the bracket 13 and the second sidewall. Meanwhile, the first connecting portion 93 further has a mounting hole, and the second sidewall further has a mounting post corresponding to the mounting hole, and the mounting hole is mounted on the mounting post to position the first connecting portion 93. In an alternative mode, a through hole corresponding to the mounting position of the powder discharging blade 80 can be formed in the second side wall, so that the powder discharging blade 80 or the bracket 13 extends through the through hole to enable the powder discharging blade 80 to be connected with the bracket 13 in an engagement mode.

Optionally, the other end of the first connecting portion 93 may be mounted on the bracket 13 by a buckle; alternatively, the first connecting portion 93 may be directly connected to the developing roller 20 and the end of the powder feeding roller near the first end 11 of the box 10, and the bracket 13 may be made of an insulating material.

In addition, since the blade of the doctor blade 80 is made of a conductive material, and the blade structure may contact the surface of the developing roller 20 during the operation of the developing cartridge 1, in order to prevent the blade structure from damaging the developing roller 20 and causing problems during the conductive process, a rubber strip may be added above the blade structure, and the rubber strip is an insulating material for contacting the surface of the developing roller 20 to control the thickness of the developer carried on the surface of the developing roller.

EXAMPLE five

The fifth embodiment is substantially the same as the fourth embodiment, and the developing cartridge 1 includes a cartridge body 10, a developing roller 20, a powder feeding roller (not shown), a stirring element (not shown), a driving end protecting cover 30, a sliding cover 40, a transmission assembly 6, a chip 50, a supporting member 51, a detecting mechanism 70, a powder discharging blade 80, and a detecting end protecting cover. The chip 50 and the supporting member 51 are located at the first end 11 of the case 10, and the difference is that the chip 50 is movable in a first direction, a second direction and a third direction relative to the supporting member 51.

Fig. 20 is a front view of the supporting member and the chip of the developing cartridge of the fifth embodiment of the present application in the second direction. As shown in fig. 20, the chip 50 includes a contact surface 501 and a storage component 502, and the support component 51 includes a limiting block 511, a limiting column 512 and a cavity 513. In a state where the chip 50 is mounted on the support member 51, the stopper 512 prevents the chip 50 from being detached from the support member 51, and the chip 50 is movable in the first direction, the second direction, and the third direction in the chamber 513. When the developing cartridge 1 is mounted to the electrophotographic apparatus, the chip 50 can receive the force from the terminals of the electrophotographic apparatus, and the chip 50 moves to the position contacting the stopper posts 512, and thus, a stable connection with the terminals of the electrophotographic apparatus is achieved.

EXAMPLE six

The sixth embodiment is substantially the same as the fourth embodiment, and the developing cartridge 2 includes a cartridge body 10, a developing roller 20, a powder feeding roller (not shown), a stirring element (not shown), a driving end protecting cover 30, a transmission assembly, a chip, a supporting part, a detecting mechanism 70, a powder discharging knife 80, and a detecting end protecting cover 40. The developing cartridge 2 further includes an electrode 90, and the connection relationship between the electrode 90 and the powder discharging blade 80, and the connection relationship between the developing roller 20 and the powder feeding roller are different from those of the above-described embodiment. The method specifically comprises the following steps:

fig. 21 is a schematic perspective view of a developing cartridge according to a sixth embodiment of the present application; FIG. 22 is an enlarged view at C of FIG. 21; fig. 23 is a schematic perspective view of a second end of a developing cartridge according to a sixth embodiment of the present application with an electrode protection cover removed; fig. 24 is a schematic perspective view showing a part of an electrode of a developing cartridge according to a sixth embodiment of the present application; fig. 25 is a schematic perspective view of another part of an electrode of a developing cartridge according to a sixth embodiment of the present application; as shown in fig. 21 to 25, the electrode 90 includes a first contact portion 91, a second connection portion 92, and a first connection portion 93, wherein the first contact portion 91 is used for contacting with the electrophotographic apparatus to form an electrical connection between the developing cartridge 2 and the electrophotographic apparatus, the second connection portion 92 is used for forming an electrical connection between the first contact portion 91 and the doctor blade 80, and the first connection portion 93 is used for forming an electrical connection between the doctor blade 80 and the developing roller 20.

Further, the developing cartridge 2 further includes a protective cover 41, the protective cover 41 is located at one end of the cartridge body 10 and is away from the detecting mechanism 70 in the second direction, and the protective cover 41 is used for supporting the developing roller and further supporting and protecting a part of the electrodes. The protective cover 41 is made of an insulating material, and the position of the protective cover 41 away from the developing roller has an opening for exposing the first contact portion 91, so that the electrode 90 is electrically connected to the electronic imaging device.

As shown in fig. 23 and 24, in the present embodiment, the first contact portion 91 and the second connection portion 92 are integrally formed, and alternatively, the first contact portion 91 and the second connection portion 92 may be separately formed and connected by a method such as overlapping or welding. The second connection portion 92 includes a first contact end 921, a second contact end 922, and an intermediate communication portion 923. The first contact end 921 is elastically deformable, the first contact end 921 is clamped at one end of the powder discharging knife 80 close to the first contact end, and the second contact end 922 is formed into a ring shape and sleeved outside the roller shaft of the powder feeding roller 25. Alternatively, the second contact end 922 may be formed in an arc shape, a flat plate shape, or other shapes, and accordingly, the second contact end 922 may directly overlap with the roller shaft of the powder feeding roller 25, which is not particularly limited. Further, the first contact part 91 is located between the first contact end 921 and the second contact end 922 in the second direction.

As shown in fig. 22 and 25, the first connecting portion 93 includes a positioning portion 931, a first abutting end 932, and a second abutting end 933. The positioning portion 931 is mounted at one end of the cartridge 10, the first abutting end 932 is used for abutting against the powder discharging blade 80, and the second abutting end 932 is used for abutting against the developing roller shaft 22 of the developing roller 20, so as to form an electrical connection between the electronic imaging device and the developing roller 20.

At this time, when the developing cartridge 2 is mounted in the electrophotographic apparatus, the first contact portion 91 contacts the electrophotographic apparatus, so that an electrical connection is formed between the developing cartridge 2 and the electrophotographic apparatus, power is conducted to the powder discharging blade 80 and the powder feeding roller 25 through the first contact portion 91, the powder discharging blade 80 conducts power to the developing roller 20 at one end portion of the cartridge body 10 through the first connecting portion 93, so that the developing roller 20 and the powder feeding roller 25 are charged with voltage.

EXAMPLE seven

The seventh embodiment is substantially the same as the sixth embodiment, and the developing cartridge 2 includes a cartridge body 10, a developing roller 20, a powder feeding roller (not shown), a stirring element (not shown), a driving end protecting cover 30, a transmission assembly 6, a chip, a supporting component, a detecting mechanism 70, a powder discharging knife 80, and a detecting end protecting cover 40. The developing cartridge 1 further includes an electrode 90, and the connection relationship between the electrode 90 and the powder discharging blade 80, and the connection relationship between the developing roller 20 and the powder feeding roller are different from those of the above-described embodiments. The method specifically comprises the following steps:

fig. 26 is a schematic perspective view of a developing cartridge according to a seventh embodiment of the present application; FIG. 27 is an enlarged schematic view taken at D in FIG. 26; fig. 28 is a schematic perspective exploded view of the seventh embodiment of the present application, showing the developing cartridge without the driving-end protecting cover, the coupling, the developing gear, and the powder feeding gear; fig. 29 is a schematic perspective view of a developing cartridge of a seventh embodiment of the present application with an electrode protective cover removed; fig. 30 is a schematic perspective view showing a part of an electrode of a developing cartridge according to a seventh embodiment of the present application; as shown in fig. 29 and 30, the second connecting portion 92 includes a first contact end 921, and the first contact end 921 is connected to the powder discharging blade 80; and there is no direct connection between the second connecting portion 92 and the powder feed roller 25.

As shown in fig. 26 to 28, the developing cartridge 2 further includes a plate 94, the plate 94 being located at the first end 11 of the cartridge body 10, the plate 94 rotatably supporting the developing roller 20 and the powder feeding roller 25. In the present embodiment, the plate member 94 is made of a conductive material such as metal or conductive resin, and the material of the plate member is not particularly limited. At this time, the first abutting end 932 of the first connecting portion 93 contacts the doctor blade 80, and the second abutting end 933 contacts the plate 94. When the developing cartridge 1 is installed in an electrophotographic apparatus, after the first contact portion 91 contacts the electrophotographic apparatus to form an electrical connection, the first contact portion 91 transmits power to the powder discharging blade 80, the powder discharging blade 80 further transmits power to the first connecting portion 93, and the first connecting portion 93 transmits power to the developing roller 20 and the powder feeding roller 25 through the plate 94, so that an electrical connection relationship is formed between the developing roller 20 and the electrophotographic apparatus and between the powder feeding roller 25 and the electrophotographic apparatus, so that the developing roller 20 and the powder feeding roller 25 are charged with voltage.

Example eight

The eighth embodiment is substantially the same as the sixth embodiment, and the developing cartridge 2 includes a cartridge body 10, a developing roller 20, a powder feeding roller (not shown), a stirring member (not shown), a driving end protecting cover 30, a transmission assembly 6, a chip, a supporting member, a detecting mechanism 70, a powder discharging blade 80, and a detecting end protecting cover 40. The developing cartridge 1 further includes an electrode 90, and the connection relationship between the electrode 90 and the powder discharging blade 80, and the connection relationship between the developing roller 20 and the powder feeding roller is different from the above-described embodiment, and in this embodiment, there is no direct connection relationship between the second connection portion 92 and the powder feeding roller 25. The method specifically comprises the following steps:

fig. 31 is a schematic perspective view of another view of the development cartridge according to the eighth embodiment of the present application with the drive-end cover removed; fig. 32 is a schematic perspective view of another part of an electrode of a developing cartridge according to an eighth embodiment of the present application; as shown in fig. 31 and 32, the electrode 90 further includes a third connecting portion 95, the third connecting portion 95 includes a third abutting end 951 and a fourth abutting end 952, the third abutting end 951 and the fourth abutting end 952 extend in the first direction, the third abutting end 951 is connected to the developing roller 20 in the first direction, and the fourth abutting end 952 is connected to the powder feeding roller 25 in the first direction.

At this time, when the developing cartridge 2 is mounted in the electrophotographic apparatus, the first contact portion 91 contacts the electrophotographic apparatus, an electrical connection relationship is formed between the developing cartridge 1 and the electrophotographic apparatus, the first contact portion 91 conducts power to the powder discharging blade 80 through the second connecting portion 92, the powder discharging blade 80 conducts power to the developing roller 20 through the first connecting portion 93, and the developing roller 20 conducts power to the powder feeding roller 25 through the third connecting portion 95, so that an electrical connection relationship is formed between the developing roller 20 and the electrophotographic apparatus, between the powder feeding roller 25 and the electrophotographic apparatus, and so that the developing roller 20 and the powder feeding roller 25 are charged with voltage.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (12)

1. A developing cartridge, characterized by comprising:

a box having a first sidewall and a second sidewall;

the developing roller is rotatably arranged on the box body;

the powder feeding roller is rotatably arranged on the box body;

the powder discharging knife is arranged on the box body;

the electrode comprises a first contact part and a first connecting part which are electrically connected, the first contact part is arranged on the first side wall and is used for being electrically connected with an imaging device, and the first contact part is electrically connected with at least one of the powder feeding roller or the powder discharging knife;

the first connecting portion is disposed on the second sidewall, and the first connecting portion is electrically connected to the developing roller.

2. A developing cartridge according to claim 1, further comprising a chip provided to a second side wall of said cartridge body.

3. A developing cartridge according to any one of claims 1 to 2, wherein said first contact portion is electrically connected to said powder feeding roller, and said first connecting portion includes a first pressing spring and a second pressing spring electrically connected to each other, said first pressing spring being for electrically connecting to said developing roller, and said second pressing spring being for electrically connecting to said powder feeding roller.

4. A developing cartridge according to any one of claims 1-2, wherein said electrode further includes a second contact portion provided to said second side wall and electrically connected to said developing roller, and a second connecting portion electrically connected to said first contact portion and said second contact portion, respectively.

5. A developing cartridge according to claim 4, wherein said first connecting portion includes a developing contact portion and a powder feeding contact portion, said developing contact portion being electrically connected to said powder feeding contact portion through a conductive member, said developing contact portion being electrically connected to said developing roller, said powder feeding contact portion being electrically connected to said powder feeding roller.

6. A developing cartridge according to any one of claims 1-2, wherein said first contact portion is electrically connected to said doctor blade, said first connecting portion is electrically connected to said doctor blade and said developing roller, and said doctor blade is made of an electrically conductive material.

7. A developing cartridge according to claim 6, wherein said electrode further includes a second connecting portion, and said first contact portion is electrically connected to said developing roller via said doctor blade and said second connecting portion.

8. A developing cartridge according to claim 6, further comprising a bracket provided to said second side wall for supporting said developing roller, wherein said first connecting portion is electrically connected to said doctor blade and said bracket, and wherein said bracket is made of an electrically conductive material.

9. A developing cartridge according to any one of claims 1-2, wherein said first contact portion is electrically connected to said powder discharging blade and said powder feeding roller, and said first connecting portion is electrically connected to said developing roller.

10. A developing cartridge according to claim 9, wherein said electrode further includes a second connecting portion electrically connected to said first contact portion, and said second connecting portion includes a first contact end electrically connected to said doctor blade and a second contact end electrically connected to said developing roller.

11. A developing cartridge according to claim 9, wherein said first connecting portion includes a positioning portion, a first abutting end and a second abutting end, said positioning portion is mounted to an end portion of said cartridge body, said first abutting end abuts against an end portion of said doctor blade, and said second abutting end abuts against an end portion of said developing roller.

12. A process cartridge comprising a drum cartridge and the developing cartridge according to any one of claims 1 to 11, wherein said developing cartridge is detachably mountable to said drum cartridge.

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