CN217484720U

CN217484720U - Processing box

Info

Publication number: CN217484720U
Application number: CN202220744124.0U
Authority: CN
Inventors: 姜鹏; 刘小兵
Original assignee: Jiangxi Yibo Electronic Technology Co Ltd
Current assignee: Jiangxi Yibo Electronic Technology Co Ltd
Priority date: 2021-04-02
Filing date: 2022-04-01
Publication date: 2022-09-23
Anticipated expiration: 2032-04-01
Also published as: CN115202173A

Abstract

The utility model discloses a detachably installs processing box to in electronic imaging equipment including separation component, include: a photosensitive drum; a developing roller; a first casing supporting the developing roller; when the process cartridge is mounted in the electrophotographic apparatus, the photosensitive drum is located on a lower end side of the process cartridge and the axis of the developing roller is located on an upper side of the axis of the photosensitive drum in a gravitational direction; and an integrally formed second casing that supports the photosensitive drum, the first casing being rotatable relative to the second casing, a partitioning force receiving member that is movable relative to the second casing being provided on the second casing, the partitioning 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 partitioning force receiving member so that the developing roller is partitioned from the photosensitive drum.

Description

Processing box

Technical Field

The present invention relates to a process cartridge, and more particularly, to a housing of a process cartridge accommodating a developer.

Background

In general, a general process cartridge includes a first casing for accommodating a developer to be used and a second casing for collecting a waste developer remaining after development, the first casing having components such as a developing roller, an agitating frame, and a powder feeding roller mounted thereon, and the second casing having components such as a charging roller and a photosensitive drum mounted thereon, and is generally detachably mounted to an electrophotographic apparatus, and when image formation is required, the charging roller spreads a predetermined electrostatic charge on a surface of the photosensitive drum, and the photosensitive drum forms an electrostatic latent image on the surface by its own photosensitive property, and the electrostatic latent image is developed by the developing roller and then transferred to an image forming medium, thereby completing a developing process.

In addition, in order to solve the problem that the developing roller is deformed or the photosensitive drum is polluted due to the contact of the developing roller and the photosensitive drum when the process cartridge is not in operation, a contact part is generally arranged on the process cartridge, and the electronic image forming device can force the developing roller to be separated from the photosensitive drum by driving a separation member to be in contact with the contact part and pushing the contact part.

Processing box among the prior art, its first casing and second casing are connected through demountable installation's protecting cover on processing box, separate power receiving element and then install on this protecting cover, and adopt this kind of mode to connect first casing and second casing, and required part is more, and the structure is comparatively complicated, and manufacturing cost is too high.

Disclosure of Invention

The invention provides a processing box, which aims to solve the technical problems that the processing box in the prior art has a complex structure, high production cost and difficult assembly, and a contact part of the processing box and a separating component of an electronic imaging device generate large friction loss.

In order to solve the problems, the invention is realized by the following technical scheme:

a process cartridge detachably mountable to an electronic image forming apparatus having a movable tray and a separation member, the tray having a support portion which can support the process cartridge, comprising:

a photosensitive drum;

a charging roller;

a powder feeding roller;

a developing roller;

a first casing supporting the developing roller and provided therein with an accommodating portion for accommodating a developer;

a second casing supporting the photosensitive drum;

a first force receiving portion that receives an external force and drives the developing roller to rotate;

a second force receiving part which can receive external force and drive the developing roller to rotate;

a supported portion supportable by the supporting portion in the tray;

a partitioning force receiving portion that can receive an external force and partition the developing roller and the photosensitive drum;

the second shell comprises a waste powder containing part and a driving end cover part, a track part is arranged on the second shell, and the separating force receiving part can move along the track part;

the drive end cover portion has two independent hollow portions from which the first force receiving portion and the second force receiving portion protrude, respectively;

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.

Preferably, the waste toner receptacle and the driving end cover are integrally molded, the driving end cover supporting the second force receiving portion.

Preferably, still including being used for supporting the supporting part of roller charges, still be provided with on the second casing and be used for the installation the supporting part installation department of supporting part, still be provided with on the drive end cap and expose the supporting part installing port of supporting part installation department.

Preferably, the support portion mounting opening is formed on the drive end cover portion.

Preferably, the isolating device further comprises an isolating support, an isolating support mounting opening is formed in the second shell, the isolating support is inserted into the second shell through the isolating support mounting opening, and the supporting portion is exposed out of the isolating support mounting opening.

Preferably, the partitioning-force receiving member is further provided with a first contact portion provided with a slope, and when the process cartridge is mounted in the electronic image forming apparatus, the slope urges the separating member so that the separating member rotates to the retracted position.

Preferably, the separation force receiving portion is further provided thereon with a second contact portion for contacting the separation member and receiving a force of separating the photosensitive drum and the developing roller, the first contact portion and the second contact portion being in abutment.

After the technical scheme of the processing box is adopted, the driving end cover part and the conductive end cover part are integrally formed with the second shell, and the movable separating force receiving part is arranged on the second shell, so that the complexity of the structure of the processing box is reduced, the connection between the first shell and the second shell is simpler and easier to operate, parts required for connecting the first shell and the second shell are reduced, the production cost of the processing box is reduced, meanwhile, when the electronic imaging equipment drives the separating member to push the separating force receiving part to separate the photosensitive drum and the developing roller in the processing box, the position of a contact point between the separating member and the separating force receiving part is basically kept unchanged, the friction loss between the separating member and the separating force receiving part is reduced, and the service lives of the separating member and the separating force receiving part are prolonged.

Drawings

FIG. 1 is a schematic view of a first casing side of a process cartridge according to the present invention;

FIG. 2 is a schematic view of a second casing side of the process cartridge according to the present invention;

fig. 3 is an exploded schematic view of components on the first casing of the process cartridge provided by the present invention;

fig. 4 is an exploded schematic view of the components on the second casing of the process cartridge provided by the present invention;

FIG. 5 is a schematic view showing the structure of a partitioning-force receiving member of the process cartridge according to the present invention;

fig. 6 is a schematic view of a structure in which a partitioning-force receiving member of the process cartridge provided by the present invention is mounted on a second casing and a partially enlarged schematic view;

FIG. 7 is a schematic view showing a structure of an opening portion in a second casing of the process cartridge according to the present invention;

FIG. 8 is a schematic view showing a state in which the process cartridge according to the present invention is engaged with an electronic image forming apparatus;

fig. 9 is a schematic view of a state in which a separation member in the electronic image forming apparatus is urged by a first contact portion;

fig. 10 is a schematic view of a state in which the separation member in the electronic imaging apparatus is moved to the side of the second contact portion toward the M direction;

FIG. 11 is a schematic view of a separation member separating a photosensitive drum and a developing roller in an electrophotographic apparatus;

FIG. 12 is a schematic view showing the completion of the installation of the conductive terminal-separating holder of the process cartridge according to the present invention;

FIG. 13 is a schematic view showing the completion of the installation of the separation bracket at the driving end of the process cartridge according to the present invention;

FIG. 14 is a schematic view of a process cartridge according to the present invention before the spacer bracket is mounted;

FIG. 15 is an exploded view of the process cartridge of the present invention;

FIG. 16 is an enlarged partial view of a second housing in accordance with the present invention;

FIG. 17 is a partial schematic view of the spacer bracket mounted between the photosensitive drum and the charging roller in the present invention;

FIG. 18 is an enlarged partial schematic view of the conductive end cap portion of the present invention;

FIG. 19 is a schematic view of the spacer bracket of the present invention after assembly;

FIG. 20 is an exploded view of a portion of the second housing and the components supported on the second housing in accordance with the present invention;

FIG. 21 is a schematic view of a second housing of the present invention;

FIG. 22 is a schematic view of a conductive end cap portion of the process cartridge of the present invention;

FIG. 23 is an enlarged partial view of the second support portion of the present invention shown mounted to the second support portion mounting portion;

FIG. 24 is a schematic view of a second supporting portion of the process cartridge according to the present invention;

FIG. 25 is a schematic view of the process cartridge of the present invention ready for installation into a tray of an image forming apparatus;

FIG. 26 is a schematic view of another perspective of the process cartridge of the present invention ready for installation into a tray of an image forming apparatus;

fig. 27 is a schematic view of the process cartridge of the present invention mounted in a tray of an image forming apparatus.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

In the following description, the following definitions are first made: the first force receiving part 19 rotates about the first axis a1 extending in the first direction, the direction in which the process cartridge is mounted to the tray in the electronic image forming apparatus is the second direction, the moving direction of the partitioning force receiving member 3 in the opening portion 30 is the third direction, and the separating member 60 is movable in the M direction horizontally to the left and the N direction horizontally to the right.

Processing box

As shown in fig. 1 and 2, the process cartridge includes a first housing 1 and a second housing 2 coupled to each other, a developer required for development may be stored in the first housing 1, the second housing 2 may be used to collect a waste developer remaining after development, the process cartridge is provided with a driving end cover portion 5 and a conductive end cover portion 4 at both ends in a first direction, the driving end cover portion 5 is used to support a first force receiving portion 19 and a second force receiving portion 6a for receiving a driving force transmitted from an electrophotographic apparatus, the conductive end cover portion 4 is provided with a first electrical conduction portion 25 and a second electrical conduction portion 11 which are in contact with a conductive portion (not shown) of the electrophotographic apparatus and receive electrical power, the process cartridge is further provided with a separating force receiving member 3, and the separating force receiving member 3 is used to separate a photosensitive drum 6 and a developing roller (not shown) of the process cartridge.

First shell

As shown in fig. 1 to 5, the first force receiving portion 19 is mounted on the first housing 1, in the first direction, the first force receiving portion 19 is provided with a first protecting portion 18 and a supporting bracket 20 on both sides thereof, the first force receiving portion 19 can receive the driving force transmitted by the electronic image forming apparatus to drive the first force transmitting portion 21 to rotate together around a first axis a1 extending in the first direction, a powder feeding roller gear 17 and a developing roller gear 14 partially meshed with the first force receiving portion 19 are further provided in the vicinity of the first force receiving portion 19, and 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 with the developing roller 13, and the developing roller gear 14 can drive the developing roller 13 to rotate around a second axis A2 extending in the first direction; the powder feeding roller gear 17 is connected with the powder feeding roller 16, and the powder feeding roller gear 17 can drive the powder feeding roller 16 to rotate; the first force transmission part 21 is meshed with the stirring frame gear 22; a doctor blade 15 is mounted near the developing roller 13; a first electrically conductive portion 25 is mounted on a distal side of the first housing 1 from the first force receiving portion 19 in the first direction, the first electrically conductive portion 25 being made of an electrically conductive material, such as an electrically conductive resin material, a metal material, or the like, for receiving electric power transmitted by an electrically conductive portion (not shown) of the electrophotographic apparatus and supplying the electric power to at least one of the developing roller 13, the powder feed roller 16, and the powder discharge blade 15; the first casing 1 is also provided with a sealing part 24 and a first elastic part 23, the sealing part 24 on the first casing 1 can be opened to add the developer into the first casing 1, and the first elastic part 23 can ensure that the developing roller 13 and the photosensitive drum 6 on the processing box can be kept in a close contact state when the processing box works; when the first housing 1 and the second housing 2 are connected, the first force receiving portion 19 protrudes from the fourth hollow portion 5a of the driving end cover portion 5, and the first force receiving portion 18b that can contact with the partitioning force receiving member 3 is provided on the first guard portion.

Second shell

As shown in fig. 1 to 5, the driving end cap portion 5 and the conductive end cap portion 4 respectively located at the ends of the process cartridges on both sides in the first direction are integrally formed with the main body portion of the second casing 2, the driving end cap portion 5 and the conductive end cap portion 4 are respectively located at both side ends of the second housing 2 in the first direction, the second housing 2 is provided with a photosensitive drum 6, a second force receiving part 6a is arranged at one end of the photosensitive drum 6 in the first direction, the second force receiving part 6a extends out of the hollow part 5b of the driving end cover part 5, the second force receiving part 6a can receive driving force transmitted by the electronic imaging device to drive the photosensitive drum 6 to rotate around a third axis A3, the photosensitive drum 6 is provided with a second shaft pin 8 at the other end in the first direction, and the second shaft pin 8 can be inserted into the photosensitive drum 6 through a third hole 4b on the conductive end cover part 4; a charging roller 7 is arranged near the photosensitive drum 6, two sides of the charging roller 7 in the first direction are respectively arranged on a first supporting part 9a and a second supporting part 9b, the first supporting part 9a and the second supporting part 9b are respectively connected with a second elastic part 10a and a third elastic part 10b, and the second elastic part 10a and the third elastic part 10b can enable the charging roller 7 to be in close contact with the photosensitive drum 6; the conductive end cap part 4 is provided with a second electric conduction part 11, and the second electric conduction part 11 can receive electric power transmitted by a conductive part (not shown) of the electronic imaging device and supply the electric power to the charging roller 7; a cleaning member 12 is mounted on the second casing 2, the cleaning member 12 being for cleaning the developer remaining on the photosensitive drum 6; further, the partition force receiving member 3 is mounted on the second casing 2, the partition force receiving member 3 is movable on the second casing 2, specifically, the second casing 2 is provided with an opening portion 30 on a side close to the photosensitive drum 6 in the second direction, the partition force receiving member 3 is mounted in the opening portion 30 on the second casing 2 for forcing the photosensitive drum 6 and the developing roller 13 in the process cartridge to be separated, preferably, the opening portion 30 is selectively provided on the drive end cover portion 5, although the opening portion 30 may be provided on a member detachably mounted on the drive end cover portion 5.

Separating force receiving member

As shown in fig. 5 to 10, the partitioning-force receiving member 3 includes thereon a main body portion 3a, a first contact portion 3b, a second contact portion 3c, a guide portion 3d, an urging portion 3e, and a first stopper portion 3f, the main body portion 3a being extendable in a first direction, the second contact portion 3c protruding from a surface of the main body portion 3a and extending in a second direction toward a direction away from the second housing 2, the second contact portion 3c being for contacting with the separating member 60 in the electronic imaging apparatus and receiving a force of the separating member 60; the first contact portion 3b also protrudes from the surface of the main body portion 3a and extends in the second direction away from the second housing 2, the first contact portion 3b is also in contact with the second contact portion 3c, preferably, a slope is provided on the first contact portion 3b, when the separating member 60 is in contact with the first contact portion 3b, the slope of the first contact portion 3b will press the separating member 60, although the slope on the first contact portion 3b may be provided with other structures, such as an arc surface; in the second direction, the guide portion 3d is provided on the main body portion 3a on the side opposite to the first contact portion 3b, the guide portion 3d is used for guiding the movement of the partitioning-force receiving member 3 in the opening portion 30, and in order to prevent the partitioning-force receiving member 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 portion of the opening portion 30 in the first direction, preferably, the guide portion 3d is selected to be composed of a plurality of portions provided at intervals in the third direction, and of course, the guide portion 3d may be selected to be composed of a single portion; a pushing part 3e is connected to one side of the guide part 3d, which is far away from the main body part 3a in the second direction, the pushing part 3e extends towards the inside of the process cartridge in the second direction, after the second contact part 3c receives the force of the separating member 60, the separating member 60 pushes the separating force receiving part 3 to move in the opening part 30, further, the second contact part 3c drives the pushing part 3e to contact with the first protecting part 18 and enables the pushing part 3e to push the first protecting part 18, and further the first protecting part 18 drives the first housing 1 to rotate around a rotation center (not shown) of the first housing 1, and further the developing roller 13 on the first housing 1 is separated from the photosensitive drum 6 in the second housing 2; the guide portion 3d is further connected with a first limiting portion 3f, the first limiting portion 3f extends in the first direction, the first limiting portion 3f is used for limiting the displacement of the separating force receiving member 3 in the second direction, so that the separating force receiving member 3 does not fall from the process cartridge in the second direction in the process of forcing the developing roller 13 and the photosensitive drum 6 to separate from each other by the separating force receiving member 3, of course, the first limiting portion 3f does not need to be separately provided on the separating force receiving member 3, because the urging portion 3e also has the function of the first limiting portion 3f for preventing the separating force receiving member 3 from falling from the process cartridge in the second direction, and the first limiting portion 3f can be provided only for increasing the contact area of the separating force receiving member 3 and the process cartridge, so that the separating force receiving member 3 is more uniformly stressed, and the separating force receiving member 3 can move in the opening portion 30 more smoothly, And (4) smoothing.

Opening part

As shown in fig. 6 and 7, the opening 30 includes a rail portion 30a, an attachment portion 30b, and a second stopper portion 30c, and in the first direction, the gap width of the attachment portion 30b is larger than the gap width of the rail portion 30a, and the gap width of the rail portion 30a is larger than the gap width of the second stopper portion 30 c. The rail portion 30a has two opposed faces in the first direction, which are parallel to the third direction, the two faces of the rail portion 30a are spaced apart from each other by a distance L2 in the first direction, L2 is equal to the width L1 of the guide portion 3d in the first direction, i.e., L2= L1, the second stopper portion 30c extends outward from each of the two opposed faces of the rail portion 30a, the partitioning-force receiving member 3 is mountable into the opening portion 30 from the mounting portion 30b, when the partitioning-force receiving member 3 is pushed toward the rail portion 30a from the mounting portion 30b and in the third direction, the guide portion 3d of the partitioning-force receiving member 3 comes into contact with the second stopper portion 30c and presses the second stopper portion 30c, so that the guide portion 3d can pass into the rail portion 30a, and when the guide portion 3d passes through the second stopper portion 30c, the width of the second stopper portion 30c in the first direction is restored to the width before it is not increased, in the guide portion 3d, the guide portion 3d can only abut against the second stopper portion 30c without passing through the second stopper portion 30c without being held by a certain degree of external force, that is, the partitioning-force receiving member 3 attached to the rail portion 30a does not fall off from the opening portion 30 in the third direction. The second shell is provided with a track portion, the separating force receiving component is further provided with a main body portion, the main body portion is located on one side of the track portion in the gravity direction, the first limiting portion and the pressing portion are located on the other side of the track portion, and the main body portion, the first limiting portion and the pressing portion are in contact with the track portion to limit the separating force receiving component to deflect relative to the gravity direction in the process of moving relative to the second shell.

As shown in fig. 8, the electronic imaging apparatus includes: a separating member 60 movable in a horizontal left M direction and a horizontal right N direction, the separating member 60 being provided with a projection 60a for contacting the partitioning-force receiving part 3 and pushing the partitioning-force receiving part 3 to move, the separating member 60 having a rotation center 61, and a fourth elastic part 62 provided on the separating member 60 on a side away from the rotation center 12 of the separating member 60 for moving the separating member 60 between a predetermined position and a retracted position.

The following describes in detail the process of connecting the first casing 1 and the second casing 2 and the process of forcing the photosensitive drum 6 and the developing roller 13 apart by the sliding member 3 on the process cartridge according to the present invention, with reference to fig. 1 to 11.

Process of separating the photosensitive drum 6 and the developing roller 13 on the process cartridge: the slope of the first contact portion 3b will urge the separating member 60 so that the separating member 60 at a predetermined position overcomes the elastic force of the fourth elastic portion 62 connected thereto and rotates about the rotation center 61 thereof to the retracted position, when the separating member 60 continues to move in the M direction, the separating member 60 will completely pass over the first contact portion 3b, the first contact portion 3b will no longer urge the separating member 60, the elastic force of the fourth elastic portion 62 will cause the separating member 60 to rotate along the rotation center 61 thereof and return to the predetermined position, the projection 60a on the separating member 60 returning to the predetermined position is located in the space on the side of the second contact portion 3c facing the M direction, and further, the electronic imaging device controls the separating member 60 to move in the N direction, the separating member 60 will contact the second contact portion 3c and apply a force in the N direction to the second contact portion 3c, the second contact portion 3c will move in the track portion 30a of the opening portion 30 under the force, at the same time, the pushing portion 3e of the force receiving member 3 contacts the first force-receiving portion 18b of the first protecting portion 18 and applies a force in the direction N to the first force-receiving portion 18b, and the first force-receiving portion 18b drives the first casing 1 to rotate around its rotation center (not shown) under the force, so that the developing roller 13 on the first casing 1 is separated from the photosensitive drum 6 in the second casing 2, and the separation distance between the developing roller 13 and the photosensitive drum 6 is shown as P in fig. 11. In the above-described separation process, when the separating member 60 pushes the separating force receiving part 3 to move, since the separating force receiving part 3 always moves in the third direction, the position of the contact point between the separating member 60 and the separating force receiving part 3 is not substantially changed, that is, the frictional loss between the separating member 60 and the separating force receiving part 3 is reduced.

Anti-pollution structure of photosensitive drum and charging roller

As shown in fig. 12 to 18, the photosensitive drum 6 has an outer peripheral surface 6b, and the charging roller 7 includes: the charging roller comprises an inner metal shaft 7a and an outer elastic surface 7b, wherein the substantially central part of the metal shaft 7a is wrapped by the elastic surface 7b, the other parts of two sides are exposed, the metal shafts 7a on two sides are respectively arranged on a first supporting part 9a and a second supporting part 9b, and the elastic surface 7b of the charging roller 7 is contacted with the outer circumferential surface 6b of the photosensitive drum 6 with certain pressure under the action of elastic forces of a second elastic part 10a and a third elastic part 10 b.

An isolation bracket mounting opening 80 is respectively formed in the conductive end cover portion 4 and the driving end cover portion 5, the opening direction of the isolation bracket mounting opening 80 is configured to face the outer side of the length direction of the main body portion of the second housing 2, and the isolation bracket 40 can be mounted in the isolation bracket mounting opening 80 through the opening. The isolation support mounting port 80 comprises a plurality of inner walls, each inner wall comprises a first inner wall 70, a second inner wall 71, a third inner wall 72, a third 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 arranged oppositely, the second inner wall 71 and the fourth inner wall 73 are arranged oppositely, and the blocking wall 74 can be used for limiting the mounting termination position of the isolation support 40.

After the process cartridge a is assembled, the isolation bracket 40 is inserted into the second casing 2 through the isolation bracket mounting port 80, so that the photosensitive drum 6 and the charging roller 7 are separated, and when the process cartridge a is used by an end user, the contact state of the photosensitive drum 6 and the charging roller 7 can be restored by only dismounting the isolation bracket 40, so that the charging roller 7 can charge the photosensitive drum 6.

It is worth mentioning that the isolation bracket 40 is integrally formed, so that the production cost and the assembly time can be effectively reduced; in consideration of cost and practicality, the material of the isolation bracket 40 is preferably plastic, but this is not limited thereto, and may be metal, wooden products, etc.

Mounting of first support part and second support part

As shown in fig. 19 to 24, the second housing 2 further includes a first support mounting portion 91 and a second support mounting portion 92, the first support mounting portion 91 can be used for mounting the first support 9a, the second support mounting portion 92 can be used for mounting the second support 9b, and the first support mounting portion 91 and the second support mounting portion 92 are respectively located on the conductive end cover portion 4 and the driving end cover portion 5, which is not limited, and can also be located on the main body portion of the second housing 2. The second support portion mounting portion 92 includes: a third elastic part mounting part 92a to which one side of the second elastic part 10b is mountable; a pair of second support portion guide portions 92b provided oppositely for mounting and guiding the second support portion 9 b; a second support portion limiting portion 92c, the second support portion limiting portion 92c being connected to the second support portion guide portion 92b, the second support portion limiting portion 92c being operable to limit the stroke of the second support portion 9 b; a second support mounting opening 92d is also included for receiving the second support 9 b. The first support mounting portion 91 is similar to the second support mounting portion 92, and the functions thereof are substantially the same, and the description thereof is omitted. Further, the first support portion mounting opening 91d can expose the first support portion mounting portion 91 and the second support portion mounting opening 92d can expose the second support portion mounting portion 92 as viewed in the direction of the third axis a3 of the photosensitive drum 6 without disassembling the particular parts of the process cartridge. Further, the second housing 2 including 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, the second housing 2 can be produced by only one set of mold, so that the production cost is greatly reduced, and the assembly efficiency of the processing box is improved.

The first supporting portion 9a and the second supporting portion 9b are made of conductive materials, preferably, in combination with cost and practicality, the materials of the first supporting portion 9a and the second supporting portion 9b are conductive resins, and optionally, the materials may also be copper, aluminum, conductive ceramics, and the like; the second support part 9b is mounted on a second support part mounting part 92 on the conductive terminal cover part 4, and the second support part 9b includes: a fourth elastic portion mounting portion 9b1 capable of abutting on the third elastic portion 10b side, that is, the third elastic portion 10b abuts between the third elastic portion mounting portion 92a and the fourth elastic portion mounting portion 9b 1; the pair of sliding chutes 9b2 are symmetrically arranged on two opposite sides of the second supporting portion 9b, the width and the depth of the pair of sliding chutes 9b2 are the same, the sliding chutes 9b2 can be used for installing and guiding the second supporting portion 9b, and the second supporting portion 9b can relatively move away from or approach to a third axis A3 of the photosensitive drum 6 under the limit of the stroke of the second supporting portion limiting portion 92 c; the first support part 9a is mounted on the first support part mounting portion 91 on the drive end cover portion 5, wherein the first support part 9a is similar in structure and function to the second support part 9b, and when assembled, the first support part 9a and the second support part 9b are set to be universally mountable on the first support part mounting portion 91 and the second support part mounting portion 92, so that the number of molds for producing the first support part 9a and the second support part 9b can be further reduced through the universality of the first support part and the second support part, and the cost is reduced.

Process cartridge mounting

As shown in fig. 25 to 27, a process of mounting the process cartridge a into the electronic image forming apparatus 50 will be described, the electronic image forming apparatus 50 includes a movable tray 52 and a main body accommodating portion 51, the tray 52 is withdrawable and advanceable from the main body accommodating portion 51, and when the tray 52 is withdrawn, the process cartridge a is mountable in the tray 52 and is urged into the main body accommodating portion 51 of the electronic image forming apparatus together with the tray 52. The tray 52 includes a plurality of accommodating chambers 53 for accommodating the process cartridges a, a supporting portion 54 for supporting the process cartridges is provided in each of the accommodating chambers 53, and supported portions 27 are provided on the process cartridges a, and when the process cartridges a are mounted in the tray 52, the process cartridges a are supported on the tray 52 by being contacted to the supporting portion 54 by the supporting portions 27. The supported portion 27 of the process cartridge is disposed at the upper end of the partitioning force receiving portion 3 in the gravity direction while being at the lower end of the first force receiving portion 19, and the supported portion 27 is disposed adjacent to the partitioning force receiving portion 3, which arrangement can ensure that the process cartridge a can be maintained at the upper end of the separating member 60 without interfering with the separating member 60 during the process of being pushed into the main body accommodating portion 51 with the tray 52.

The driving end cover part and the conductive end cover part are integrally formed with the second shell, and the movable separating force receiving part is arranged on the second shell, so that the complexity of the structure of the processing box is reduced, the connection between the first shell and the second shell is simpler and easier to operate, parts required for connecting the first shell and the second shell are reduced, the production cost of the processing box is reduced, meanwhile, when the electronic imaging device drives the separating member to push the separating force receiving part to separate the photosensitive drum and the developing roller in the processing box, the position of a contact point between the separating member and the separating force receiving part is basically kept unchanged, the friction loss between the separating member and the separating force receiving part is reduced, and the service lives of the separating member and the separating force receiving part are prolonged.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A process cartridge detachably mountable to an electronic image forming apparatus having a movable tray and a separation member, the tray having a support portion supporting the process cartridge, the process cartridge comprising:

a photosensitive drum;

a charging roller;

a powder feeding roller;

a developing roller;

a second casing supporting the photosensitive drum;

a first force receiving portion that can receive an external force and drive the developing roller to rotate;

a supported portion supportable by the supporting portion in the tray;

the device is characterized in that the second shell comprises a waste powder containing part and a driving end cover part, a track part is arranged on the second shell, and the separating force receiving part can move along the track part;

when the process cartridge is placed in and supported by the tray, the supported portion is disposed 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.

2. A process cartridge according to claim 1, wherein said waste toner housing portion and said drive-end cover portion are integrally molded, said drive-end cover portion supporting said second force receiving portion.

3. A process cartridge according to claim 1, further comprising a supporting portion for supporting said charging roller, said second casing being further provided with a supporting portion mounting portion for mounting said supporting portion, said driving end cover portion being further provided with a supporting portion mounting opening for exposing said supporting portion mounting portion.

4. A process cartridge according to claim 3, wherein said support portion mounting port is formed on said drive end cover portion.

5. A process cartridge according to claim 3, further comprising an insulating frame, wherein an insulating frame mounting opening is provided in said second casing, said insulating frame is inserted into said second casing through said insulating frame mounting opening, and said supporting portion is exposed through said insulating frame mounting opening.

6. A process cartridge according to claim 1, wherein said partitioning-force receiving portion is further provided with a first contact portion on which a slope is provided, said slope urging said partitioning member to rotate said partitioning member to the retracted position when said process cartridge is mounted in said electronic image forming apparatus.

7. A process cartridge according to claim 6, wherein a second contact portion for contacting with said separating member and receiving a force of separating said photosensitive drum and said developing roller is further provided on said separating force receiving portion, and said first contact portion and said second contact portion are abutted.