CN110874043A - Processing box - Google Patents
Processing box Download PDFInfo
- Publication number
- CN110874043A CN110874043A CN201811144227.8A CN201811144227A CN110874043A CN 110874043 A CN110874043 A CN 110874043A CN 201811144227 A CN201811144227 A CN 201811144227A CN 110874043 A CN110874043 A CN 110874043A
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- Prior art keywords
- gear
- developing roller
- photosensitive drum
- process cartridge
- driving
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- 238000012545 processing Methods 0.000 title abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 76
- 239000002699 waste material Substances 0.000 claims description 16
- 238000012546 transfer Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 description 18
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 238000003384 imaging method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1857—Means for handling the process cartridge in the apparatus body for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms
- G03G21/186—Axial couplings
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
- G03G21/1814—Details of parts of process cartridge, e.g. for charging, transfer, cleaning, developing
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- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrophotography Configuration And Component (AREA)
Abstract
A process cartridge detachably mountable to an image forming apparatus provided with a driving part including a driving gear, the process cartridge includes: a housing containing a developer therein; a gear train; the gear train comprises a photosensitive drum gear for driving the photosensitive drum to rotate and a developing roller gear for driving the developing roller to rotate; when the process cartridge is mounted in the image forming apparatus, the power receiving member is engaged with the driving member and receives a rotational driving force, the developing roller gear is rotated by receiving the rotational driving force transmitted from the power receiving member, and the photosensitive drum gear is rotated by receiving the rotational driving force transmitted from the developing roller gear. The technical problems that in the prior art, the structure of the processing box on the driving side is complex, the manufacturing precision and the assembling requirement among a plurality of power receiving parts become higher, and the manufacturing cost of the processing box is increased are solved.
Description
Technical Field
The present invention relates to a process cartridge used in an electronic image forming apparatus.
Background
In electrophotographic image forming apparatuses such as electrostatic copiers, digital copiers, and all-in-one printers, there is provided a developing device that develops an electrostatic latent image formed on a photosensitive drum. The photosensitive drum and the developing device are one of the core components in an electrophotographic image forming apparatus. The process cartridge generally includes two types, one of which is a process cartridge in which a photosensitive drum is separated from a developing roller and is mounted on different frames, respectively, and is sometimes also referred to as a split-type process cartridge; another is that the photosensitive drum and the developing roller are provided together on the same frame, and such a process cartridge is sometimes called an integral process cartridge. In the integrated process cartridge, in addition to the photosensitive drum and the developing roller, a powder feeding roller, a charging roller, a toner hopper, an agitating frame and the like are generally included, and when toner in the toner hopper is used up, the entire process cartridge is detached from the frame for replacement. The imaging principle of the imaging device is as follows: the charging roller charges the surface of the photosensitive drum with a uniform layer of electric charge, the light scanning unit in the electronic imaging device emits light to the surface of the charged photosensitive drum to form an electrostatic latent image, the developing roller conveys developer to the electrostatic latent image area on the surface of the photosensitive drum to form a visible developer image on the surface of the photosensitive drum, the transfer unit in the imaging device transfers the visible developer image to a recording medium, the visible developer image is fixed on the recording medium through fixing, and finally the recording medium is discharged from the imaging device.
Chinese patent publication No. CN107505817A discloses an integrated process cartridge detachably mountable to an image forming apparatus, the process cartridge including a photosensitive drum and a developing roller. As shown in fig. 1, one end portion of the photosensitive drum 101 is provided with a drum power receiving portion 101a, one end portion of the developing roller 102 is provided with a roller power receiving portion 102a, a driving member 100 is provided in the image forming apparatus, and one side end of the driving member 100 is provided with a driving portion 100a and a driving gear 100 b. When the process cartridge is mounted in the image forming apparatus, the driving portion 100a is engaged with the drum power receiving portion 101a, while the driving gear 100b is engaged with the roller power receiving portion 102 a. When the driving member 100 is rotated by a motor in the image forming apparatus, the driving portion 100a and the driving gear 100b transmit driving force to the drum power receiving portion 101a and the roller power receiving portion 102a at the same time, and further, the drum power receiving portion 101a rotates the photosensitive drum 101 and the roller power receiving portion 102a rotates the developing roller 102. In this prior art, since the power receiving portion 101a of the side end of the photosensitive drum 101 in the process cartridge is required to be engaged with the driving portion 100a of the image forming apparatus and the developing roller gear 102a of the side end of the developing roller 102 is required to be engaged with the driving portion 100a, the structure of the process cartridge on the driving side becomes complicated, and the plurality of power receiving portions connected to the outside are provided in the process cartridge, the manufacturing accuracy and the assembling requirement between the respective power receiving portions become higher, which leads to an increase in the manufacturing cost of the process cartridge.
Further, chinese patent publication CN106814575A also discloses a process cartridge and an image forming apparatus. In an image forming apparatus, a first drive shaft and a second drive shaft are provided, a process cartridge side end is provided with a drum coupling member which can drive a photosensitive drum to rotate and a developing roller coupling member which can drive a developing roller to rotate. When the process cartridge is mounted to the image forming apparatus, the drum coupling is coupled to the first drive shaft, and the developing roller coupling is coupled to the second drive shaft. When the first drive shaft and the second drive shaft of the image forming apparatus are rotated by the motor, the drum coupling receives a driving force from the first drive shaft to rotate the photosensitive drum, and the developing roller coupling receives a driving force from the second drive shaft to rotate the developing roller. In this configuration, although the driving portions of the driving drum coupling and the developing roller coupling are separately provided, the structure of the process cartridge on the driving side becomes complicated, and the process cartridge is provided with a plurality of power receiving portions connected to the outside, so that the manufacturing accuracy and the assembling requirement between the power receiving portions become higher, and the manufacturing cost of the process cartridge is increased.
Disclosure of Invention
The invention aims to provide a processing box, which solves the technical problems that the structure of the processing box on the driving side is complex, the manufacturing precision and the assembly requirement among a plurality of power receiving parts become higher, and the manufacturing cost of the processing box is increased in the prior art.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a process cartridge detachably mountable to an image forming apparatus in which a driving part is provided,
the process cartridge includes:
a housing having an accommodating portion that can accommodate a developer;
a photosensitive drum;
a developing roller;
a gear train;
the gear train comprises a photosensitive drum gear for driving the photosensitive drum to rotate and a developing roller gear for driving the developing roller to rotate;
the process cartridge is provided with a power receiving member engageable with the driving member,
the power receiving component simultaneously drives the photosensitive drum gear to rotate and the developing roller gear to rotate, and the developing roller gear receives driving force transmitted by the power receiving component before the photosensitive drum gear.
Further, the photosensitive drum gear is directly meshed with the developing roller gear to receive the rotational driving force transmitted by the developing roller gear.
Further, the gear train further comprises an input gear, the power receiving component is connected with the input gear and transmits driving force to the developing roller gear through the input gear, and the photosensitive drum gear is meshed with the developing roller gear to receive the driving force transmitted by the developing roller gear.
Further, the process cartridge includes a waste toner hopper in which the photosensitive drum is accommodated, the waste toner hopper having therein a screw for conveying waste toner removed from the photosensitive drum, the screw having a screw gear on one side thereof, the screw gear being engaged with the input gear through a plurality of transfer gears.
Further, the addendum circles of the input gear and the developing roller gear are smaller than the addendum circle of the photosensitive drum gear.
Further, the developing roller gear includes a first meshing portion and a second meshing portion, the first meshing portion is meshed with the driving gear, and the second meshing portion is meshed with the photosensitive drum gear.
Further, the tooth width of the photosensitive drum gear is smaller than that of the developing roller gear.
After the technical scheme is adopted, the developing roller gear is driven to rotate by the power receiving part and the photosensitive drum gear is driven to rotate by the developing roller gear, so that the technical problem that in the prior art, the manufacturing cost of the processing box is increased due to the fact that the structure of the processing box on the driving side is complex, and the manufacturing precision and the assembling requirement among a plurality of power receiving parts are higher is solved. On the other hand, the gear train of the process cartridge of the present invention has a compact and simple structure, the transmission of the drive of the internal gears of the process cartridge is more stable, and the axial engagement between the power receiving part of the process cartridge and the driving part in the image forming apparatus is also more stable.
Description of the drawings:
FIG. 1 is a schematic view of a conventional image forming apparatus in which a driving member is driven to rotate with a photosensitive drum and a developing roller in a process cartridge;
FIG. 2 is a schematic view showing the construction of a process cartridge according to a first embodiment of the present invention;
FIG. 3 is a schematic view showing a state where a gear of a photosensitive drum is engaged with a gear of a developing roller in the first embodiment of the present invention;
FIG. 4 is a schematic structural view of the driving member of the image forming apparatus in the first embodiment of the present invention, and the transmission between the photosensitive drum and the developing roller in the process cartridge;
fig. 5 is a schematic configuration diagram of another conventional image forming apparatus;
FIG. 6 is a schematic view showing the construction of a process cartridge according to a second embodiment of the present invention;
FIG. 7 is a schematic view showing a gear train of the process cartridge in the second embodiment of the present invention;
FIG. 8 is a schematic view showing a transportation structure of the developer in the waste toner hopper of the process cartridge in the second embodiment of the present invention;
FIG. 9 is a partial schematic view showing a gear train of the process cartridge according to the second embodiment of the present invention.
The specific implementation mode is as follows:
in order to make the object, technical scheme and technical effect of the embodiment of the present invention clearer, the technical scheme of the developing cartridge of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be apparent that the described embodiment is only one preferred embodiment of the present invention, not all embodiments, and other embodiments obtained by those skilled in the art without inventive efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
First embodiment
Fig. 2 is a schematic view showing the structure of a process cartridge 1 according to the first embodiment of the present invention. The process cartridge 1 includes: a casing 1 in which developer is accommodated; a photosensitive drum 2 supported on the housing 1 and having a photosensitive drum gear 5 provided at one longitudinal end thereof; the developing roller 3 is supported on the casing 1 and is provided with a developing roller gear 6 at one end in its longitudinal direction. Wherein the photosensitive drum gear 5 and the developing roller gear 6 are in an intermeshing state when the photosensitive drum 2 and the developing roller 3 are mounted on the casing 1.
As shown in fig. 3, a schematic view of a state in which the photosensitive drum gear 5 and the developing roller gear 6 are meshed with each other in the present embodiment is shown. Here, the axis L1 of the photosensitive drum 3 is substantially parallel to the axis L2 of the developing roller 4. The photosensitive drum gear 5 has a tooth width H1 measured in the direction of the axis L1 of the photosensitive drum 3; the width of the developing roller gear 6, measured in the direction of the axis L2 of the developing roller 4, is H2; in the present embodiment, the tooth width H1 of the photosensitive drum gear 5 is smaller than the tooth width H2 of the developing roller gear 6, that is, the photosensitive drum gear 5 meshes with part of the developing roller gear 6.
As shown in fig. 4, when the process cartridge 1 is mounted into the image forming apparatus, the drive gear 100b on the drive member 100 of the image forming apparatus meshes with part of the developing roller gear 6. For convenience of description, a portion where the developing roller gear 6 meshes with the photosensitive drum gear 5 is defined as a first meshing portion 6a, and a portion where the developing roller gear 6 meshes with the drive gear 100b is positioned as a second meshing portion 6 b. When the motor in the image forming apparatus rotates the driving member 100, the driving member 100 transmits the driving force to the developing roller gear 6 by the engagement between the driving gear 100b and the second engaging portion 6b, and the developing roller gear 6 transmits the driving force to the photosensitive drum gear 5 by the engagement between the photosensitive drum gear 5 and the first engaging portion 6a, thereby rotating the photosensitive drum 3. As can be seen from the above, in the present embodiment, the developing roller 4 receives the driving force transmitted by the driving member 100 by the engagement of the developing roller gear 6 and the driving gear 100b, and transmits the driving force to the photosensitive drum 3 by the engagement of the developing roller gear 6 and the photosensitive drum gear 5, so that the photosensitive drum 3 is indirectly driven to rotate. It is noted that, in the process of meshing the developing roller gear 6 with the drive gear 100b of the drive member 100, there may occur a case where the gear teeth of the developing roller gear 6 and the gear teeth of the drive gear 100b abut against each other, that is, the developing roller gear 6 and the drive gear 100b cannot mesh, at which time the urging force to position the process cartridge 1 therein in the image forming apparatus provides the urging force to the developing roller gear 6.
Second embodiment
The process cartridge in the second embodiment of the present invention becomes larger in size, larger in the amount of developer, and greatly improved in service life as compared with the process cartridge in the first embodiment, which brings about a problem that the rotational driving force required for driving the process cartridge is also greatly improved. Therefore, the second embodiment differs from the first embodiment in the manner in which the developing roller receives the driving force from the image forming apparatus, and the second embodiment also differs in the structure of the gear train. As shown in fig. 5 and 6, since the weight of the process cartridge becomes heavier as the size of the process cartridge is increased, in order to facilitate the mounting and dismounting of the process cartridge, the image forming apparatus 200 of the present embodiment is provided with a tray 201 and a driving part 202, the process cartridge 10 can be mounted into the tray 201, and when the process cartridge is mounted into the image forming apparatus 200, the process cartridge 10 mounted in the tray 201 is mounted into the image forming apparatus 200 together with the tray 201; the process cartridge 10 is provided with a power receiving member 12, and when the process cartridge 10 is mounted in the image forming apparatus 200, the power receiving member 12 engages with the driving member 202 to receive the driving force transmitted from the driving member 202.
As shown in fig. 7 to 9, the gear train of the process cartridge in the present embodiment includes an input gear 12a, a developing roller gear 13a, a photosensitive drum gear 14a, a first agitation frame gear 15a, a first transmission gear 17, a second agitation frame gear 16a, a second transmission gear 23, a third transmission gear 24, a fourth transmission gear 25, and a screw gear 21 a.
As shown in fig. 7, the process cartridge 10 is provided with a power receiving member 12 on one longitudinal side end thereof in the present embodiment, the power receiving member 12 includes an input gear 12a and a power receiving portion 12b, the power receiving portion 12b is engageable with a driving member 202 (see fig. 6) of the image forming apparatus to receive a driving force and transmits the driving force to the input gear 12a, and the input gear 12a transmits the driving force to a rotary member such as the developing roller 13, the photosensitive drum 14, or the like through a gear train provided on the same side end of the casing 11. When the input gear 12a rotates by receiving the driving force transmitted from the power receiving part 12b, since the input gear 12a is directly engaged with the developing roller gear 13a and the agitating frame gear 15a, the developing roller gear 13a and the agitating frame gear 15a receive the driving force transmitted from the input gear 13a to rotate the developing roller 13 and the first agitating frame 15; the developing roller gear 13a is directly meshed with the photosensitive drum gear 14a, and the photosensitive drum gear 14a receives the driving force transmitted by the developing roller gear 13a to drive the photosensitive drum 14 to rotate; the first transmission gear 17 is simultaneously engaged with the first and second agitator gears 15a and 16a, so that the second agitator gear 16a rotates the second agitator 16 by receiving a driving force from the first agitator gear 15a through the first transmission gear 17. In this embodiment, the developing roller 13 is rotated by the developing roller gear 13a engaging with the input gear 12a and receiving the driving force received by the power receiving part 12 from the image forming apparatus, and is not directly rotated by the image forming apparatus, such a transmission manner is more stable, and the situation that the developing roller 13 cannot be rotated by the driving force does not occur. In the present embodiment, the addendum circles of the input gear 12a and the developing roller gear 13a are smaller than the addendum circle of the photosensitive drum gear 14 a.
For convenience of description, the directions described in the present embodiment are briefly defined below, and the mounting direction of the process cartridge into the image forming apparatus is positioned as the front and rear directions, the photosensitive drum axial direction is positioned as the left and right directions, the direction perpendicular to the front and rear directions, and the left and right directions are positioned as the up and down directions. As shown in fig. 8, the process cartridge 10 of the present embodiment includes a powder hopper 18 and a waste powder hopper 19, the powder hopper 18 and the waste powder hopper 19 are connected by a connecting member such as a pin, and the waste powder hopper 19 is located above the powder hopper 18. The photosensitive drum 14 is rotatably supported on a waste toner hopper 19, and a cleaning blade 20 is installed in the waste toner hopper 19 in contact with the photosensitive drum 14, and when the photosensitive drum 14 is driven to rotate, the cleaning blade 20 contacts the photosensitive drum 14 to clean waste toner remaining on the surface of the photosensitive drum 14, and then conveys the waste toner into a housing portion 22 of the waste toner hopper 19 by a screw 21. As shown in fig. 9, when the input gear 12a receives the driving force transmitted from the power receiving portion 12b to rotate, since the input gear 12a is directly engaged with the second transmission gear 23, the input gear 12a transmits the driving force to the second transmission gear 23 to rotate the second transmission gear 23; the second transfer gear 23 is simultaneously meshed with a third transfer gear 24, and the third transfer gear 24 receives the driving force transferred by the second transfer gear 23; the third transmission gear 24 is simultaneously meshed with a fourth transmission gear 25, and the fourth transmission gear 25 receives the driving force transmitted by the third transmission gear 24; since the fourth transmission gear 25 is also engaged with the screw gear 21a, the fourth transmission gear 25 rotates the screw 21 by transmitting the driving force to the screw gear 21a, and the screw 21 performs the work of conveying the waste powder. Here, since the screw 21 is located above the photosensitive drum 14, the screw gear 21a is disposed close to the photosensitive drum gear 14 a. In the present embodiment, the first transfer gear 17, the second transfer gear 23, the third transfer gear 24, and the fourth transfer gear 25 are all provided as idle gears.
In the structure of the process cartridge in the above embodiment, since the photosensitive layer on the surface of the photosensitive drum is thin and is easy to wear, in practical use, the diameter of the photosensitive drum is made as large as possible to reduce the number of rotation turns of the photosensitive drum in the image forming process, and meanwhile, in order to reduce the overall size of the process cartridge, the diameter of the developing roller is made as small as possible, so in practical use, the gear of the photosensitive drum driving the photosensitive drum is arranged to be much larger than the gear of the developing roller driving the developing roller, in other words, the addendum circle of the gears of the photosensitive drum which are meshed with each other is much larger than the addendum circle of the gear of the developing roller. Also, in actual use of the process cartridge, the main torque of the process cartridge is concentrated in the driving rotation of the photosensitive drum and the developing roller. Therefore, when a structural design is adopted in which a single power receiving member is engaged with a driving member in an image forming apparatus on a process cartridge, if a rotational driving force transmitted by the power receiving member is transmitted to a developing roller gear via a photosensitive drum gear, the power receiving member will need to receive a large rotational driving force to drive the rotation of the photosensitive drum gear and the developing roller gear, the driving member in the image forming apparatus will need to output a large torque to drive the power receiving member to rotate, which will result in an increase in energy consumption of the image forming apparatus, and the mechanical strength requirements for the materials of the driving member and the power receiving member are also higher, it will need to be made of more costly materials, it will need to use some steel materials to maintain sufficient operational strength, and the steel materials are not easy to mass-produce by an injection mold and a die-casting mold, which will result in low mass-production efficiency, while greatly increasing the manufacturing costs of the process cartridge and the image forming apparatus. On the other hand, since the driving member and the power receiving member employ a separable axial engagement mechanism, when the torque transmitted between the driving member and the power receiving member is too large, a problem that the axial engagement between the driving member and the power receiving member is released is easily generated, so that the driving member cannot stably transmit the rotational driving force to the power receiving member.
Therefore, in the above embodiment, the structure in which the photosensitive drum gear is driven to rotate by the developing roller gear is adopted. Specifically, the power receiving part receives the force of the driving part in the image forming apparatus, the developing roller gear receives the rotational driving force transmitted from the power receiving part, and the photosensitive drum gear receives the rotational driving force transmitted from the developing roller gear. Thus, the power receiving member can drive the entire gear train in the process cartridge with a small torque. The torque force output from the driving member in the image forming apparatus becomes smaller, the power consumption of the image forming apparatus portion becomes smaller, the mechanical strength requirements of the driving member and the power receiving member themselves are also reduced, and the axial engagement between the driving member and the power receiving member is also more stable.
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 (7)
1. A process cartridge detachably mountable to an image forming apparatus in which a driving part is provided,
the process cartridge includes:
a housing having an accommodating portion that can accommodate a developer;
a photosensitive drum;
a developing roller;
a gear train;
the gear train comprises a photosensitive drum gear for driving the photosensitive drum to rotate and a developing roller gear for driving the developing roller to rotate;
the process cartridge is provided with a power receiving member engageable with the driving member,
the developing roller gear is characterized in that the power receiving part simultaneously drives the photosensitive drum gear to rotate and the developing roller gear to rotate, and the developing roller gear receives driving force transmitted by the power receiving part before the photosensitive drum gear.
2. A process cartridge according to claim 1, wherein said photosensitive drum gear is directly engaged with said developing roller gear to receive the rotational driving force transmitted from said developing roller gear.
3. A process cartridge according to claim 1, wherein said gear train further includes an input gear, said power receiving member is connected to said input gear and transmits a driving force to said developing roller gear through said input gear, and said drum gear is engaged with said developing roller gear to receive the driving force transmitted from said developing roller gear.
4. A process cartridge according to claim 3, wherein said process cartridge includes a waste toner hopper in which said photosensitive drum is accommodated, said waste toner hopper having therein a screw for conveying the waste toner removed from said photosensitive drum, said screw having on one side thereof a screw gear which is meshed with said input gear via a plurality of transfer gears.
5. A process cartridge according to claim 3, wherein addendum circles of said input gear and said developing roller gear are smaller than addendum circles of said photosensitive drum gear.
6. A process cartridge according to claim 1, wherein said developing roller gear includes a first engaging portion and a second engaging portion, said first engaging portion being engaged with said driving gear, said second engaging portion being engaged with said photosensitive drum gear.
7. A process cartridge according to claim 6, wherein a tooth width of said photosensitive drum gear is smaller than a tooth width of said developing roller gear.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821421827 | 2018-08-31 | ||
| CN201821421827X | 2018-08-31 | ||
| CN2018214642765 | 2018-09-07 | ||
| CN201821464276 | 2018-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110874043A true CN110874043A (en) | 2020-03-10 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811144227.8A Pending CN110874043A (en) | 2018-08-31 | 2018-09-29 | Processing box |
| CN201821595367.2U Active CN208861144U (en) | 2018-08-31 | 2018-09-29 | A kind of handle box |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821595367.2U Active CN208861144U (en) | 2018-08-31 | 2018-09-29 | A kind of handle box |
Country Status (1)
| Country | Link |
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| CN (2) | CN110874043A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442460A (en) * | 2020-11-03 | 2022-05-06 | 江西亿铂电子科技有限公司 | Processing box |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110874043A (en) * | 2018-08-31 | 2020-03-10 | 江西亿铂电子科技有限公司 | Processing box |
| CN110347029B (en) * | 2019-08-06 | 2024-09-13 | 珠海天威飞马打印耗材有限公司 | Process cartridge |
| CN211318998U (en) * | 2019-09-12 | 2020-08-21 | 中山市三润打印耗材有限公司 | Processing box |
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- 2018-09-29 CN CN201811144227.8A patent/CN110874043A/en active Pending
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| CN114442460A (en) * | 2020-11-03 | 2022-05-06 | 江西亿铂电子科技有限公司 | Processing box |
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| CN208861144U (en) | 2019-05-14 |
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