A process cartridge

Abstract

A process cartridge detachably mountable to an electronic image forming apparatus including a separation member, includes a photosensitive drum, a developing roller, a first casing supporting the developing roller, the photosensitive drum being located at a lower end side of the process cartridge in a gravitational direction, an axis of the developing roller being located at an upper side of an axis of the photosensitive drum when the process cartridge is mounted in the electronic image forming apparatus, a second casing integrally formed, the second casing supporting the photosensitive drum, the first casing being rotatable relative to the second casing, a partition force receiving member movable relative to the second casing being provided on the second casing, the partition force receiving member receiving a force of the separation member to move, the first casing being moved relative to the second casing by the movement of the partition force receiving member to separate the developing roller from the photosensitive drum.

Description

Technical Field

[0001] The present invention relates to a processing box, and in particular to a shell of the processing box for accommodating developer. Background Art

[0002] Typically, an ordinary processing box includes a first shell for accommodating the developer to be used and a second shell for collecting the waste developer remaining after development. The first shell is equipped with components such as a developing roller, a stirring frame and a powder feeding roller, and the second shell is equipped with components such as a charging roller and a photosensitive drum. The ordinary processing box is usually detachably installed in an electronic imaging device. When imaging is required, the charging roller will apply a predetermined electrostatic charge on the surface of the photosensitive drum. The photosensitive drum uses its own photosensitive properties to form an electrostatic latent image on the surface. The electrostatic latent image is developed by the developing roller and then transferred to the imaging medium, thereby completing the development process.

[0003] In addition, in order to solve the problem that the developing roller contacts the photosensitive drum when the processing box is not working, which may cause the developing roller to deform or the photosensitive drum to be contaminated, a contact component is usually provided on the processing box. The electronic imaging device can force the developing roller to separate from the photosensitive drum by driving the separation component to contact the contact component and push the contact component.

[0004] In the prior art, the first shell and the second shell of the processing box are connected by a protective cover that is detachably mounted on the processing box, and the separation force receiving component is mounted on the protective cover. However, this method of connecting the first shell and the second shell requires more parts, has a more complex structure, and has an excessively high production cost. Summary of the Invention

[0005] The present invention provides a processing box, the purpose of which is to solve the technical problems in the prior art that the processing box has a complex structure, high production cost, difficult assembly, and the contact parts of the processing box will generate large friction losses with the separation components of the electronic imaging device.

[0006] To solve the above problems, the present invention is achieved through the following technical solutions:

[0007] A process cartridge is detachably mounted in an electronic imaging device having a movable tray and a separating member, wherein the tray has a supporting portion for supporting the process cartridge, and the process cartridge comprises:

[0008] Photosensitive drum;

[0009] charging roller;

[0010] Powder feeding roller;

[0011] developing roller;

[0012] a first housing supporting the developing roller and having a receiving portion for receiving the developer;

[0013] a second housing supporting the photosensitive drum;

[0014] a first force receiving portion, capable of receiving an external force and driving the developing roller to rotate;

[0015] a second force receiving portion, capable of receiving an external force and driving the photosensitive drum to rotate;

[0016] a supported portion capable of being supported by the supporting portion in the tray;

[0017] a separation force receiving portion capable of receiving an external force and separating the developing roller and the photosensitive drum;

[0018] The second housing includes a waste powder storage portion and a driving end cover portion, and the second housing is provided with a track portion, and the separation force receiving portion can move along the track portion;

[0019] The driving end cover has two independent hollow parts, and the first force receiving part and the second force receiving part extend from the two hollow parts respectively;

[0020] When the process cartridge is placed in and supported by the tray, the supported portion is provided at an upper end of the partitioning force receiving portion and at a lower end of the first force receiving portion in a gravity direction.

[0021] Preferably, the waste powder receiving portion and the driving end cover portion are integrally molded, and the driving end cover portion supports the second force receiving portion.

[0022] Preferably, it further includes a support portion for supporting the charging roller, the second shell is further provided with a support portion mounting portion for mounting the support portion, and the driving end cover is further provided with a support portion mounting opening exposing the support portion mounting portion.

[0023] Preferably, the support portion mounting opening is formed on the driving end cover portion.

[0024] Preferably, an isolation bracket is further included, and an isolation bracket mounting opening is provided on the second shell, the isolation bracket is inserted into the second shell through the isolation bracket mounting opening, and the isolation bracket mounting opening exposes the support portion.

[0025] Preferably, the separating force receiving component is further provided with a first contact portion, and the first contact portion is provided with an inclined surface. When the processing box is installed in the electronic imaging device, the inclined surface can press the separating member so that the separating member rotates to the retracted position.

[0026] Preferably, the separating force receiving portion is further provided with a second contact portion for contacting the separating member and receiving a force for separating the photosensitive drum and the developing roller, and the first contact portion and the second contact portion are adjacent to each other.

[0027] After adopting the technical solution of the processing box of the present invention, the complexity of the processing box structure is reduced by integrally forming the driving end cover part and the conductive end cover part with the second shell, and installing a movable separation force receiving component on the second shell, making the connection between the first shell and the second shell simpler and easier to operate, reducing the parts required for the connection between the first shell and the second shell, thereby reducing the production cost of the processing box. At the same time, when the electronic imaging device drives the separation member to push the separation force receiving component to separate the photosensitive drum and the developing roller in the processing box, the contact point position between the separation member and the separation force receiving component remains basically unchanged, reducing the friction loss between the separation member and the separation force receiving component, and extending the service life of the separation member and the separation force receiving component. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of one side of the first shell of the processing box provided by the present invention;

[0029] Figure 2 It is a structural schematic diagram of one side of the second shell of the processing box provided by the present invention;

[0030] Figure 3 is an exploded schematic diagram of components on the first shell of the process cartridge provided by the present invention;

[0031] Figure 4 is an exploded schematic diagram of components on the second shell of the process cartridge provided by the present invention;

[0032] Figure 5 It is a structural schematic diagram of the separation force receiving component of the processing box provided by the present invention;

[0033] Figure 6 It is a structural schematic diagram and a partially enlarged schematic diagram of the separation force receiving component of the process cartridge provided by the present invention installed on the second housing;

[0034] Figure 7 It is a structural schematic diagram of the opening portion on the second shell of the process cartridge provided by the present invention;

[0035] Figure 8 This is a schematic diagram of the state where the processing cartridge provided by the present invention cooperates with an electronic imaging device;

[0036] Figure 9 is a schematic diagram of a state in which a separating member in an electronic imaging device is pressed by a first contact portion;

[0037] Figure 10is a schematic diagram of a state in which a separating member in an electronic imaging device moves to a side where the second contact portion faces the direction M;

[0038] Figure 11 A schematic diagram of a separation member in an electronic imaging device separating a photosensitive drum and a developing roller;

[0039] Figure 12 This is a schematic diagram showing the installation of the conductive end isolation bracket of the process cartridge of the present invention;

[0040] Figure 13 This is a schematic diagram showing the installation of the isolation bracket at the driving end of the process cartridge of the present invention;

[0041] Figure 14 This is a schematic diagram of the isolation bracket of the process cartridge of the present invention before installation;

[0042] Figure 15 It is a schematic diagram of the exploded view of the process cartridge of the present invention;

[0043] Figure 16 It is a partially enlarged schematic diagram of the second shell in the present invention;

[0044] Figure 17 It is a partial schematic diagram of the isolation bracket installed between the photosensitive drum and the charging roller in the present invention;

[0045] Figure 18 It is a partial enlarged schematic diagram of the conductive end cover portion in the present invention;

[0046] Figure 19 This is a schematic diagram of the isolation bracket after assembly in the present invention;

[0047] Figure 20 It is a schematic exploded view of a portion of the second housing and the components supporting the second housing in the present invention;

[0048] Figure 21 is a schematic diagram of the second shell in the present invention;

[0049] Figure 22 is a schematic diagram of a conductive end cover portion of a process cartridge of the present invention;

[0050] Figure 23 It is a partially enlarged schematic diagram of the second supporting portion being installed on the second supporting portion mounting portion in the present invention;

[0051] Figure 24 A schematic diagram of the second supporting portion in the process cartridge of the present invention;

[0052] Figure 25 is a schematic diagram of the process cartridge of the present invention being ready to be installed into a tray of an imaging device;

[0053] Figure 26is a schematic diagram of another perspective of the process cartridge of the present invention being ready to be installed into a tray of an imaging device;

[0054] Figure 27 It is a schematic diagram of the process cartridge of the present invention installed in the tray of the imaging device. DETAILED DESCRIPTION

[0055] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0056] In the following description, the following definitions are first made: the first force receiving portion 19 rotates around the first axis A1 extending in the first direction, the direction in which the processing box is installed toward the tray in the electronic imaging device is the second direction, the moving direction of the separation force receiving component 3 in the opening portion 30 is the third direction, and the separation member 60 can move in the horizontal left direction M and the horizontal right direction N.

[0057] Processing box

[0058] like Figure 1 、 Figure 2 As shown, the processing box includes a first shell 1 and a second shell 2 that are combined with each other. The first shell 1 can store the developer required for development, and the second shell 2 can be used to collect the waste developer remaining after development. The processing box is provided with a driving end cover portion 5 and a conductive end cover portion 4 at both ends in the first direction. The driving end cover portion 5 is used to support the first force receiving portion 19 and the second force receiving portion 6a for receiving the driving force transmitted by the electronic imaging device. The conductive end cover portion 4 is provided with a first electric conduction portion 25 and a second electric conduction portion 11 that can contact the conductive portion (not shown) in the electronic imaging device and receive electric power. A separation force receiving component 3 is also installed on the processing box. The separation force receiving component 3 is used to separate the photosensitive drum 6 and the developing roller (not shown) in the processing box.

[0059] First shell

[0060] like Figures 1 to 5As shown, the first force receiving portion 19 is installed on the first shell 1. In the first direction, the first guard portion 18 and the support frame 20 are respectively provided on both sides of the first force receiving portion 19. The first force receiving portion 19 can receive the driving force transmitted by the electronic imaging device to drive the first force transmitting portion 21 to rotate around the first axis A1 extending in the first direction. A powder feeding roller gear 17 and a developing roller gear 14 that are partially meshed with the gear of the first force receiving portion 19 are also provided near the first force receiving portion 19. The first force receiving portion 19 can drive the powder feeding roller gear 17 and the developing roller gear 14 to rotate; the developing roller gear 14 is connected to the developing roller 13, and the developing roller gear 14 can drive the developing roller 13 to rotate around the second axis A2 extending in the first direction; the powder feeding roller gear 17 is connected to the powder feeding roller 16, and the powder feeding roller gear 17 can drive the powder feeding roller 16 to rotate; the first force transmitting portion 21 is meshed with the stirring frame gear 22; a powder feeding roller gear 17 is provided near the developing roller 13. A powder discharge knife 15 is provided; a first electrical conduction portion 25 is installed on the end side of the first shell 1 away from the first force receiving portion 19 in the first direction, and the first electrical conduction portion 25 is made of a conductive material, such as a conductive resin material, a metal material, etc., and is used to receive the power transmitted by the conductive portion (not shown) of the electronic imaging device and supply it to at least one of the developing roller 13, the powder feeding roller 16 and the powder discharge knife 15; a sealing portion 24 and a first elastic portion 23 are also provided on the first shell 1, and the sealing portion 24 on the first shell 1 can be opened to add developer into the first shell 1, and the first elastic portion 23 can keep the developing roller 13 and the photosensitive drum 6 on the processing box in close contact when the processing box is working; in addition, when the first shell 1 and the second shell 2 are connected, the first force receiving portion 19 will extend from the fourth hollow portion 5a on the driving end cover portion 5, and the first protective portion is provided with a first force-bearing portion 18b that can contact the separation force receiving component 3.

[0061] Second shell

[0062] like Figures 1 to 5As shown, the driving end cover portion 5 and the conductive end cover portion 4, which are respectively located at the ends of both sides of the processing box in the first direction, are integrally formed with the main body of the second shell 2. Therefore, the driving end cover portion 5 and the conductive end cover portion 4 are respectively located at the ends of both sides of the second shell 2 in the first direction, thereby becoming a part of the second shell 2. A photosensitive drum 6 is provided on the second shell 2. The second force receiving portion 6a is provided at one end of the photosensitive drum 6 in the first direction. The second force receiving portion 6a extends from the hollow portion 5b of the driving end cover portion 5. The second force receiving portion 6a can receive the driving force transmitted by the electronic imaging device to drive the photosensitive drum 6 to rotate around the third axis A3. A second shaft pin 8 is installed on the other end side of the photosensitive drum 6 in the first direction. The second shaft pin 8 can pass through the third hole 4b on the conductive end cover portion 4 and be inserted into the photosensitive drum 6; a charging roller 7 is provided near the photosensitive drum 6. The charging roller 7 is respectively installed on the first support portion 9a and the second support portion 9b on both sides of the first direction. The first support portion 9a and the second support portion 9b They are respectively connected to the second elastic part 10a and the third elastic part 10b, and the second elastic part 10a and the third elastic part 10b can keep the charging roller 7 in close contact with the photosensitive drum 6; a second electrical conductive part 11 is installed on the conductive end cover part 4, and the second electrical conductive part 11 can receive electricity transmitted by the conductive part (not shown) of the electronic imaging device and supply it to the charging roller 7; a cleaning element 12 is installed on the second shell 2, and the cleaning element 12 is used to clean the residual developer on the photosensitive drum 6; in addition, a separating force receiving component 3 is installed on the second shell 2, and the separating force receiving component 3 can be moved on the second shell 2. Specifically, the second shell 2 is provided with an opening 30 on the side close to the photosensitive drum 6 in the second direction. The separating force receiving component 3 is installed in the opening 30 on the second shell 2 for forcing the photosensitive drum 6 and the developing roller 13 in the process cartridge to separate. Preferably, the opening 30 is selected to be provided on the driving end cover part 5. Of course, the opening 30 can also be provided on a component detachably mounted on the driving end cover part 5.

[0063] Separation force receiving component

[0064] like Figures 5 to 10As shown, the separation force receiving component 3 includes a main body 3a, a first contact portion 3b, a second contact portion 3c, a guide portion 3d, a pushing portion 3e and a first limiting portion 3f. The main body 3a can extend in a first direction, and the second contact portion 3c protrudes from the surface of the main body 3a and extends in the second direction away from the second shell 2. The second contact portion 3c is used to contact the separation member 60 in the electronic imaging device and receive the force of the separation member 60; the first contact portion 3b also protrudes from the surface of the main body 3a and extends in the second direction away from the second shell 2. The first contact portion 3b also contacts the second contact portion 3c. Preferably, an inclined surface is provided on the first contact portion 3b. When the separation member 60 contacts the first contact portion When the separating force receiving component 3 is in contact with the first contact portion 3b, the inclined surface of the first contact portion 3b will press the separating member 60. Of course, the inclined surface on the first contact portion 3b can also be set to other structures, such as an arc surface; in the second direction, the guide portion 3d is set on the main body 3a on the side opposite to the first contact portion 3b. The guide portion 3d is used to guide the movement of the separating force receiving component 3 in the opening portion 30. In order to prevent the separating force receiving component 3 from shaking in the first direction as much as possible, the width L1 of the guide portion 3d in the first direction should be equal to the width of the part of the opening portion 30 that cooperates with it in the first direction. Preferably, the guide portion 3d is selected to be composed of a plurality of parts spaced apart in the third direction. Of course, the guide portion 3d can also be selected to be composed of a single part; the guide The guide portion 3d is connected to a side away from the main body portion 3a in the second direction with a pushing portion 3e, and the pushing portion 3e extends toward the inside of the processing box in the second direction. When the second contact portion 3c receives the force of the separation member 60, the separation member 60 pushes the separation force receiving component 3 to move in the opening portion 30. Further, the second contact portion 3c drives the pushing portion 3e to contact the first guard portion 18 and causes the pushing portion 3e to push the first guard portion 18, thereby allowing the first guard portion 18 to drive the first shell 1 to rotate around the rotation center (not shown) of the first shell 1, thereby separating the developing roller 13 located on the first shell 1 from the photosensitive drum 6 in the second shell 2; the guide portion 3d is also connected to a first limiting portion 3f, and the first limiting portion 3f is in the first The first limiting portion 3f is used to limit the displacement of the separating force receiving component 3 in the second direction, so that when the separating force receiving component 3 forces the developing roller 13 and the photosensitive drum 6 to separate, the separating force receiving component 3 will not fall from the processing box along the second direction. Of course, the first limiting portion 3f does not need to be set separately on the separating force receiving component 3, because the pushing portion 3e also has the function of the first limiting portion 3f to prevent the separating force receiving component 3 from falling from the processing box along the second direction. It is just that the first limiting portion 3f is set to increase the contact area between the separating force receiving component 3 and the processing box, so that the separating force receiving component 3 is subjected to more uniform force, so that the separating force receiving component 3 can move more steadily and smoothly in the opening 30.

[0065] Opening

[0066] like Figure 6 、 Figure 7 As shown, the opening portion 30 includes a rail portion 30a, a mounting portion 30b, and a second limiting portion 30c. In the first direction, the gap width of the mounting portion 30b is greater than the gap width of the rail portion 30a, and the gap width of the rail portion 30a is greater than the gap width of the second limiting portion 30c. The rail portion 30a has two opposite surfaces in the first direction, which are parallel to the third direction. The distance between the two surfaces of the rail portion 30a in the first direction is L2, and L2 is equal to the width L1 of the guide portion 3d in the first direction, that is, L2=L1. The second limiting portion 30c extends outward from the two opposite surfaces of the rail portion 30a respectively. The separating force receiving component 3 can be installed into the opening portion 30 from the mounting portion 30b. When the separating force receiving component 3 is removed from the mounting portion 30b and pushed into the rail portion 30a along the third direction, the separating force receiving portion The guide portion 3d of the component 3 contacts and presses against the second limiting portion 30c, allowing the guide portion 3d to pass through and into the track portion 30a. After the guide portion 3d passes through the second limiting portion 30c, the width of the second limiting portion 30c in the first direction returns to its original width. Without a certain degree of external force, the guide portion 3d can only abut against the second limiting portion 30c and cannot pass through the second limiting portion 30c. This prevents the separating force receiving component 3 installed in the track portion 30a from falling out of the opening 30 in the third direction. The second housing is provided with a track portion, and the separating force receiving component is further provided with a main body. In the direction of gravity, the main body is located on one side of the track portion, and the first limiting portion and the forcing portion are located on the other side of the track portion. The main body, the first limiting portion, and the forcing portion all contact the track portion to prevent the separating force receiving component from swinging relative to the direction of gravity during movement relative to the second housing.

[0067] like Figure 8 As shown, the electronic imaging device includes: a separation member 60, which can be moved in the horizontal left direction M and the horizontal right direction N, and a protrusion 60a is provided on the separation member 60 for contacting the separation force receiving part 3 and pushing the separation force receiving part 3 to move, the separation member 60 has a rotation center 61, and a fourth elastic part 62 is provided on the separation member 60 on a side away from the rotation center 12 of the separation member 60, for moving the separation member 60 between a predetermined position and a retracted position.

[0068] The following is based on Figures 1 to 11 The connection process of the first shell 1 and the second shell 2 in the process cartridge of the present invention and the process of the sliding member 3 on the process cartridge forcing the photosensitive drum 6 and the developing roller 13 to separate are described in detail.

[0069] The process of separating the photosensitive drum 6 and the developing roller 13 on the processing box: the inclined surface of the first contact part 3b will press the separating member 60, so that the separating member 60 at the predetermined position will overcome the elastic force of the fourth elastic part 62 connected thereto and rotate around its rotation center 61 to the retracted position. When the separating member 60 continues to move along the M direction, the separating member 60 will completely cross the first contact part 3b, and the first contact part 3b will no longer press the separating member 60. The elastic force of the fourth elastic part 62 will cause the separating member 60 to rotate along its rotation center 61 and return to the predetermined position. The protrusion 60a on the separating member 60 that has returned to the predetermined position is located in the space on the side of the second contact part 3c facing the M direction. Further, the electron The imaging device controls the separation member 60 to move in the N direction, and the separation member 60 contacts the second contact portion 3c and applies a force in the N direction to the second contact portion 3c. Under the action of this force, the second contact portion 3c moves in the track portion 30a of the opening portion 30. At the same time, the pushing portion 3e of the separation force receiving component 3 contacts the first force-bearing portion 18b of the first guard portion 18 and applies a force in the N direction to the first force-bearing portion 18b. Under the action of this force, the first force-bearing portion 18b drives the first housing 1 to rotate around its rotation center (not shown), thereby separating the developing roller 13 located on the first housing 1 from the photosensitive drum 6 in the second housing 2. The separation distance between the developing roller 13 and the photosensitive drum 6 is as shown in FIG. Figure 11 As shown in P in FIG. During the above separation process, when the separation member 60 pushes the separation force receiving component 3 to move, because the separation force receiving component 3 always moves along the third direction, the position of the contact point between the separation member 60 and the separation force receiving component 3 remains substantially unchanged, thereby reducing friction loss between the separation member 60 and the separation force receiving component 3.

[0070] Anti-pollution structure of photosensitive drum and charging roller

[0071] like Figures 12 to 18 As shown, the photosensitive drum 6 has an outer peripheral surface 6b, and the charging roller 7 includes: an inner metal shaft 7a and an outer elastic surface 7b. The substantially central portion of the metal shaft 7a is wrapped by the elastic surface 7b, and the other portions on both sides are exposed. The metal shafts 7a on both sides are respectively mounted on the first support portion 9a and the second support portion 9b. Under the elastic force of the second elastic portion 10a and the third elastic portion 10b, the elastic surface 7b of the charging roller 7 contacts the outer peripheral surface 6b of the photosensitive drum 6 with a certain pressure.

[0072] An isolation bracket mounting port 80 is arranged on each of the conductive end cover part 4 and the driving end cover part 5, and the opening direction of the isolation bracket mounting port 80 is configured to be towards the outside of the length direction of the main body part of the second shell 2, and the isolation bracket 40 can be mounted in the isolation bracket mounting port 80 through the opening. The isolation bracket mounting port 80 comprises an inner wall, and the inner wall has a plurality of inner walls, specifically comprising a first inner wall 70, a second inner wall 71, a third inner wall 72, a fourth inner wall 73 and a blocking wall 74 connected with the first inner wall 70, the second inner wall 71, the third inner wall 72 and the fourth inner wall 73, wherein the first inner wall 70 and the third inner wall 72 are oppositely arranged, the second inner wall 71 and the fourth inner wall 73 are oppositely arranged, and the blocking wall 74 can be used to limit the installation termination position of the isolation bracket 40.

[0073] After the processing cartridge A is assembled, the isolation bracket 40 is inserted into the second shell 2 through the isolation bracket mounting port 80, so as to separate the photosensitive drum 6 and the charging roller 7, and when the end user needs to use the processing cartridge A, the contact state of the photosensitive drum 6 and the charging roller 7 can be restored by only removing the isolation bracket 40, so that the charging roller 7 can charge the photosensitive drum 6.

[0074] It is worth mentioning that the isolation bracket 40 is integrally formed, which can effectively reduce the production cost and assembly time; in combination with the cost and practicability, the material of the isolation bracket 40 is preferably plastic, of course, this is not limited, and can also be metal, wood and the like.

[0075] Installation of the first support part and the second support part

[0076] As Figures 19 to 24As shown, the second housing 2 further comprises a first support portion mounting portion 91, which can be used for mounting the first support portion 9a, and a second support portion mounting portion 92, which can be used for mounting the second support portion 9b, and the first support portion mounting portion 91 and the second support portion mounting portion 92 are respectively located on the conductive end cover portion 4 and the driving end cover portion 5, of course, this is not a limitation, and can also be arranged on the main body portion of the second housing 2. The second support portion mounting portion 92 comprises: a third elastic portion mounting portion 92a, one side of the second elastic portion 10b can be mounted to the third elastic portion mounting portion 92a; a pair of second support portion guide portions 92b oppositely arranged, which can be used for installation and guidance of the second support portion 9b; a second support portion limiting portion 92c, which is connected with the second support portion guide portion 92b, and can be used for limiting the stroke of the second support portion 9b; and a second support portion mounting port 92d, which can be used for accommodating the second support portion 9b. The first support portion mounting portion 91 adopts a similar structure to the second support portion mounting portion 92, and the functions are basically consistent, which will not be repeated here. Further, without disassembling the specific components of the process cartridge, along the third axis A3 direction of the photosensitive drum 6, the first support portion mounting port 91d can expose the first support portion mounting portion 91, and the second support portion mounting port 92d can expose the second support portion mounting portion 92. Further, the second housing 2 comprising the main body portion of the second housing 2, the conductive end cover portion 4, the driving end cover portion 5, the second support portion mounting portion 92, and the first support portion mounting portion 91 is integrally formed, that is, only one set of mold can be used to produce the second housing 2, which greatly reduces the production cost and improves the assembly efficiency of the process cartridge.

[0077] The first support part 9a and the second support part 9b are made of conductive material, preferably, the material of the first support part 9a and the second support part 9b is conductive resin, and the material can also be copper, aluminum, conductive ceramic, etc. The second support part 9b is installed on the second support part mounting part 92 of the conductive end cover part 4, and the second support part 9b includes: a fourth elastic part mounting part 9b1, which can abut one side of the third elastic part 10b, that is, the third elastic part 10b abuts between the third elastic part mounting part 92a and the fourth elastic mounting part 9b1; and a pair of sliding grooves 9b2, which are symmetrically arranged on two opposite edges of the second support part 9b and have the same width and depth, and the sliding grooves 9b2 can be used for mounting and guiding the second support part 9b, and under the stroke limitation of the second support part limiting part 92c, the second support part 9b can relatively move away from or approach the third axis A3 of the photosensitive drum 6; the first support part 9a is installed on the first support part mounting part 91 of the driving end cover part 5, wherein the structure and function of the first support part 9a are similar to those of the second support part 9b, and in assembly, the first support part 9a and the second support part 9b are arranged to be commonly installed on the first support part mounting part 91 and the second support part mounting part 92, and the common use of the first support part and the second support part can further reduce the number of molds for producing the first support part 9a and the second support part 9b, thereby reducing the cost.

[0078] Processing cartridge installation

[0079] As Figures 25 to 27 shown, the process of installing the processing cartridge A into the electronic imaging device 50 will be introduced, the electronic imaging device 50 includes a movable tray 52 and a main body accommodating part 51, the tray 52 can be pulled out and advanced from the main body accommodating part 51, when the tray 52 is pulled out, the processing cartridge A can be installed in the tray 52 and advanced into the main body accommodating part 51 of the electronic imaging device together with the tray 52. The tray 52 contains a plurality of accommodating cavities 53 for accommodating the processing cartridge A, and a supporting part 54 for supporting the processing cartridge is arranged in each accommodating cavity 53, and the processing cartridge is provided with a supported part 27, when the processing cartridge A is installed in the tray 52, the processing cartridge A is supported on the tray 52 through the contact between the supported part 27 and the supporting part 54. In the direction of gravity, the supported part 27 of the processing cartridge is arranged at the upper end of the separation force receiving part 3, at the same time at the lower end of the first force receiving part 19, and the supported part 27 is arranged adjacent to the separation force receiving part 3, which can ensure that the separation force receiving part 3 can be maintained at the upper end of the separation member 60 during the process of advancing the tray 52 into the main body accommodating part 51, and will not interfere with the separation member 60.

[0080] The processing box of the present invention forms the driving end cover part and the conductive end cover part into an integral body with the second shell, and installs a movable separation force receiving component on the second shell, which reduces the complexity of the processing box structure, makes the connection between the first shell and the second shell simpler and easier to operate, reduces the parts required for the connection between the first shell and the second shell, thereby reducing the production cost of the processing box, and at the same time allows the electronic imaging device to drive the separation component to push the separation force receiving component to separate the photosensitive drum and the developing roller in the processing box, while the contact point position between the separation component and the separation force receiving component remains basically unchanged, reducing the friction loss between the separation component and the separation force receiving component and extending the service life of the separation component and the separation force receiving component.

[0081] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A process cartridge detachably mounted in an electronic imaging device having a movable tray and a separating member, the tray having a supporting portion for supporting the process cartridge, the process cartridge comprising: Photosensitive drum; charging roller; Powder feeding roller; developing roller; a first housing supporting the developing roller and having a receiving portion for receiving the developer; a second housing supporting the photosensitive drum; a first force receiving portion, capable of receiving an external force and driving the developing roller to rotate; a second force receiving portion, capable of receiving an external force and driving the photosensitive drum to rotate; a supported portion capable of being supported by the supporting portion in the tray; a separation force receiving portion capable of receiving an external force and separating the developing roller and the photosensitive drum; The invention is characterized in that the second shell includes a waste powder storage portion and a driving end cover portion, and the second shell is provided with a track portion, and the separation force receiving portion can move along the track portion; The driving end cover has two independent hollow parts, and the first force receiving part and the second force receiving part extend from the two hollow parts respectively; When the processing box is placed in the tray and supported by the tray, in the direction of gravity, the supported portion is arranged at the upper end of the separating force receiving portion and at the lower end of the first force receiving portion, and the supported portion is arranged adjacent to the separating force receiving portion.

2. The process cartridge according to claim 1, wherein The waste toner storage portion and the driving end cover portion are integrally molded, and the driving end cover portion supports the second force receiving portion.

3. The process cartridge according to claim 1, wherein It also includes a support portion for supporting the charging roller, the second shell is further provided with a support portion mounting portion for mounting the support portion, and the driving end cover is further provided with a support portion mounting opening exposing the support portion mounting portion.

4. The process cartridge according to claim 3, wherein: The support portion mounting opening is formed on the driving end cover portion.

5. The process cartridge according to claim 3, wherein: An isolation bracket is also included. The second shell is provided with an isolation bracket installation opening. The isolation bracket is inserted into the second shell through the isolation bracket installation opening. The isolation bracket installation opening exposes the support portion.

6. The process cartridge according to claim 1, wherein The separating force receiving portion is further provided with a first contact portion, and the first contact portion is provided with an inclined surface. When the process cartridge is installed in the electronic imaging device, the inclined surface can press the separating member so that the separating member rotates to a retracted position.

7. The process cartridge according to claim 6, wherein: The separating force receiving portion is further provided with a second contact portion for contacting the separating member and receiving a force for separating the photosensitive drum and the developing roller, and the first contact portion and the second contact portion are adjacent to each other.

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