CN216792682U - Developing box - Google Patents
Developing box Download PDFInfo
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- CN216792682U CN216792682U CN202123382775.4U CN202123382775U CN216792682U CN 216792682 U CN216792682 U CN 216792682U CN 202123382775 U CN202123382775 U CN 202123382775U CN 216792682 U CN216792682 U CN 216792682U
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- developing
- developing roller
- projection
- protrusion
- cartridge
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Abstract
The application provides a developing box, demountable installation includes in electronic imaging device: a cartridge body and a developing roller, the cartridge body accommodating a developer therein, the cartridge body having a first projection and a second projection, the first projection and the second projection moving together with the cartridge body; the developing roller is rotatably supported on the box body and is provided with a developing roller shaft and a main body part; a first protrusion for bearing the weight of the developing cartridge, a second protrusion for receiving a pressing force from the electrophotographic apparatus, the second protrusion being farther from the developing roller than the first protrusion in a second direction and a third direction, the first direction being an extending direction of a rotation shaft of the developing roller; the developing roller shaft has a first end and a second end that is distant from the first end in the first direction. The first end is directly contacted and electrically connected with the electronic imaging device, so that the developing box is simpler in structure, the mounting mode is simplified, the miniaturization of the developing box is facilitated, and the electrical connection between the developing roller and the electronic imaging device is more stable.
Description
[ technical field ] A
The application relates to the field of laser printing, in particular to a developing box.
[ background of the utility model ]
The developing cartridge is a detachable portion widely used in an electrophotographic apparatus including a drum assembly in which a photosensitive drum is mounted. The developing box is provided with a developing roller, and when the developing box is installed in the electronic imaging device, the developing roller is electrically connected with the electronic imaging device through a developing roller electrode, so that the developing roller is electrified after being electrified with certain charges and adsorbs carbon powder. The current developing box comprises electrode components such as a developing electrode and a swinging electrode, wherein the developing electrode is provided with a main body part and a protruding part which are used for installing and supporting the developing electrode, the installation of a new developing box is detected through the voltage change generated by the connection and disconnection of the electrode in the installation process, however, the electrode structure on the developing box in the prior art is complex, and the connection with an electronic imaging device is unstable.
[ Utility model ] content
The application provides a developing box for solving the problems that an electrode on the developing box is complex in structure and unstable in connection with an electronic imaging device.
The application relates to a developing box, can dismantle and install in electronic imaging device, include:
a cartridge body in which a developer is accommodated, the cartridge body having a first protrusion and a second protrusion, the first protrusion and the second protrusion moving together with the cartridge body;
the developing roller is rotatably supported on the box body and is provided with a developing roller shaft and a main body part wrapped outside the developing roller shaft; the first direction is the extending direction of the rotary shaft of the developing roller, the second direction is perpendicular to the first direction, and the third direction is perpendicular to the first direction and different from the second direction;
the first protrusion bears a weight of the developing cartridge when the first protrusion is supported by a supporting surface of an electrophotographic apparatus, the second protrusion is to receive a pressing force from the electrophotographic apparatus, the second protrusion is farther from the developing roller than the first protrusion in the second direction and the third direction, and the developing roller shaft has a first end and a second end that is farther from the first end in the first direction.
In one possible embodiment, the first end is in contact with and electrically connected to the electronic imaging device.
In one possible embodiment, the developing cartridge further has a holder fixed to a side wall of the cartridge body; the bracket has a through hole through which the first end passes.
In one possible embodiment, the developing cartridge has a conductive member electrically connected to the electronic image forming apparatus, and a projection of the conductive member in the first direction does not overlap with a projection of the developing roller.
In one possible embodiment, the conductive member is made of a conductive material.
In one possible embodiment, the developing cartridge further includes a developing roller electrode at one end portion of the developing roller shaft for electrically connecting the developing roller shaft and the conductive member.
In one possible embodiment, the developing cartridge further includes a powder feed roller electrode at an end portion of the powder feed roller, the powder feed roller electrode electrically connecting the powder feed roller and the conductive member.
In one possible embodiment, the powder feed roller electrode and the developing roller electrode are not in contact with the electrophotographic apparatus.
In a possible embodiment, the bracket is fixed to a side wall of the box body; the conductive member is supported by the holder.
In a possible embodiment, the conductive member is supported by the case.
The application provides a developing box, demountable installation includes in electronic imaging device: a cartridge body and a developing roller, the cartridge body accommodating a developer therein, the cartridge body having a first protrusion and a second protrusion, the first protrusion and the second protrusion moving together with the cartridge body; the developing roller is rotatably supported on the box body and is provided with a developing roller shaft and a main body part; a first protrusion for bearing the weight of the developing cartridge, a second protrusion for receiving a pressing force from the electrophotographic apparatus, the second protrusion being farther from the developing roller than the first protrusion in a second direction and a third direction, the first direction being an extending direction of a rotation shaft of the developing roller; the developing roller shaft has a first end and a second end distant from the first end in the first direction. The first end is directly contacted and electrically connected with the electronic imaging device, so that the developing box is simpler in structure, the mounting mode is simplified, the miniaturization of the developing box is facilitated, and the electrical connection between the developing roller and the electronic imaging device is more stable.
This will be described in more detail by means of a specific embodiment.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a perspective view of a developing cartridge provided in the present application;
fig. 2 is a side view of a developing cartridge provided herein;
FIG. 3 is a perspective view of the developer cartridge provided in the present application with the bracket removed;
FIG. 4 is a side view of a developer cartridge provided herein with a bracket removed;
FIG. 5 is a perspective view of another embodiment of a developer cartridge provided herein;
FIG. 6 is a side view of another embodiment of a developer cartridge provided herein;
fig. 7 is a perspective view of a conductive member of a developing cartridge provided in the present application.
[ detailed description ] embodiments
The technical means of the present invention will be described below by way of specific embodiments.
Example one
As shown in fig. 1 to 6, the present application provides a developing cartridge detachably mountable to an electrophotographic apparatus, the developing cartridge including a cartridge body 1 and a developing roller 2, a developer is accommodated in the cartridge body 1, the developing roller 2 is rotatably supported on the cartridge body 1, and has a developing roller shaft 21 and a main body portion 22 wrapped around the developing roller shaft 21, a first direction a is an extending direction of a rotation shaft of the developing roller 2, a second direction B is perpendicular to the first direction a, a third direction C is perpendicular to the first direction a and different from the second direction B, the first projection 11 bears the weight of the developing cartridge when the first projection 11 is supported by the supporting surface of the drum assembly, the second projection 12 is for receiving a pressing force from the electrophotographic apparatus, the second projection 12 is farther from the developing roller than the first projection 11 in the second direction B and the third direction C, and the developing roller shaft 21 has a first end and a second end that is farther from the first end in the first direction.
The box body 1 contains developer, the developing roller 2 and the powder feeding roller 4 are used for bearing and transporting the developer, and the developing roller 2 comprises a developing roller shaft 21 and a main body part 22 wrapped outside the developing roller shaft 21; the main body 22 is a hollow cylinder, and the main body 22 is made of conductive material. As the conductive material, a conductive steel material, a conductive rubber, a conductive resin, or the like can be used. The first end 211 of the developing roller shaft 21 is in direct contact with and electrically connected to the electrophotographic apparatus, and the projection of the contact surface of the electrophotographic apparatus and the first end 211 of the developing roller 2 in the first direction a overlaps. The design simplifies the electrode structure on the developing box and improves the stability of the connection of the developing box and the electronic imaging device.
The box body 1 is provided with a first protrusion 11, and the first protrusion 11 is located on the outer surface of the side wall of the box body 1 and is of a cylindrical structure. The first protrusion 11 extends in the first direction a and moves together with the case 1. The first protrusions 11 are distant from the developing roller 2 in the second direction B and the third direction C.
The first protrusion 11 serves to support the developing cartridge, and to stably couple the developing cartridge and the electronic image forming apparatus.
The first protrusion 11 may be separated from the holder 3 and extended from the case 1, or the first protrusion 11 may be contacted with the holder 3, extended from the holder 3, or assembled to the holder 3.
The second projection 12 is for receiving pressure from the drum assembly to stabilize the developing cartridge.
The second protrusion 12 is located on the outer surface of the sidewall of the cartridge body 1, and has a cylindrical structure, the second protrusion 12 extends in the first direction a and moves with the cartridge body 1, and the second protrusion 12 is farther from the developing roller 2 than the first protrusion 11 in the second direction B and the third direction C.
The developing cartridge further has a powder feeding roller 4, the powder feeding roller 4 being located inside the cartridge body 1 and having a powder feeding roller shaft 41, the powder feeding roller 4 being rotatable around the powder feeding roller shaft 41. The developing roller shaft 21 is cylindrical as a whole, and may have a solid or hollow structure or an integral or separate structure. The developing roller shaft 21 is made of a conductive material having a certain strength, and a steel shaft may be used, but is not limited to the steel shaft. The contact surface of the first end 211 with the electronic image forming device overlaps the projection of the developing roller 2 in the first direction a.
In one possible embodiment, the first end 211 is in direct contact and electrically connected with the electronic imaging device.
The developing cartridge is electrically connected to the electrophotographic apparatus stably by the first end 211 being in direct contact with and electrically connected to the electrophotographic apparatus.
In order to reduce the friction force when the first end 211 directly contacts with the electronic imaging device, the contact surface between the first end 211 and the electronic imaging device may be a curved surface, but of course, the contact surface may also be a flat surface. In order to make the first end 211 stably contact with the electronic imaging device, the first end 211 may be provided with a protrusion, which contacts with the electronic imaging device; since the size of the developing roller 2 can be adjusted, the contact surface of the projection and the electrophotographic apparatus in the first direction a may not overlap the projection of the developing roller 2.
As shown in fig. 1, in one possible embodiment, the developing cartridge further has a holder 3, the holder 3 being fixed to a side wall of the cartridge body 1; the holder 3 has a through hole through which the first end 211 passes.
The bracket 3 fixes the developing roller 2 on the box body 1, ensures the stability of the electric connection between the developing roller 2 and the electronic imaging device, has no developing roller electrode, simplifies the structure of the developing box and reduces the production and manufacturing cost.
The support 3 is made of a non-conductive material, the support 3 is fixed on the side wall of the box body 1 in a clamping or screwing mode, and the support 3 is provided with a through hole 31 for positioning the developing roller 2. The first end 211 passes through the through hole 31 and then directly contacts and electrically connects with the electronic imaging device. The holder 3 may be made of a conductive material, and the powder feed roller 4 and the developing roller 2 are electrically connected through the holder 3, and the conductive material may be made of a conductive steel material, a conductive rubber, a conductive resin, or the like.
Example two
In one possible embodiment, the developing cartridge has a conductive member 6, the conductive member 6 is in contact with the electronic image forming apparatus, the developing roller 2 is in indirect contact with the electronic image forming apparatus through the conductive member 6, and the conductive member 6 is made of a conductive material.
The developing cartridge and the electronic image forming apparatus are stably electrically connected through the conductive member 6.
As the material of the conductive member 6, a conductive steel material, a conductive rubber, a conductive resin, or the like can be used. Electrically conductive 6 has buckle 61, and the reference column has the card hole with buckle 61 complex, and electrically conductive 6 covers establishes on the reference column, buckle 61 and card hole joint make electrically conductive 6 fix on support 3. The projection of the conductive member 6 in the first direction a does not overlap the projection of the developing roller 2, i.e., the conductive member 6 is not located at the shaft end of the developing roller 2.
In one possible embodiment, the developing cartridge further includes a developing roller electrode at one end portion of the developing roller shaft 21 for electrically connecting the developing roller shaft 21 and the conductive member 6.
The developing roller electrode 5 is located at one end portion of the developing roller shaft 21, and connects the developing roller shaft 21 and the conductive member 6, thereby ensuring the stability of the electrical connection between the developing cartridge and the electronic image forming apparatus.
As shown in fig. 3 and 4, in one possible embodiment, the developing cartridge includes a powder feed roller electrode 5, and the powder feed roller electrode 5 is located at an end portion of the powder feed roller to electrically connect the powder feed roller and the conductive member 6.
The powder feeding roller electrode 5 is connected with the powder feeding roller shaft 41 and the developing roller shaft 21, the first end 211 is electrically connected with the powder feeding roller shaft 41 through the powder feeding roller electrode 5, the powder feeding roller electrode 5 is positioned at one end part of the powder feeding roller shaft 41 and is electrically connected with the conductive piece 6, and the stability of the electrical connection of the developing box and the electronic imaging device is ensured. The powder feeding roller electrode 5 and the developing roller electrode can also be integrally arranged, so that the structure of the developing box is simplified.
In one possible embodiment, the powder feed roller electrode 5 and the developing roller electrode are not in contact with the electrophotographic apparatus.
The powder feeding roller electrode 5 and the developing roller electrode are both made of conductive materials and are not in contact with the electronic imaging device, are positioned between the support 3 and the box body 1, and are clamped on the support 3.
In a possible embodiment, the support 3 is fixed to a side wall of the box 1; the conductive member 6 is supported by the holder 3.
In a possible embodiment, the conductive member 6 is supported by the case 1.
The application provides a developing box, demountable installation includes in electronic imaging device: a cartridge body 1 and a developing roller 2, the cartridge body 1 containing a developer therein, the cartridge body 1 having a first protrusion 11 and a second protrusion 12, the first protrusion 11 and the second protrusion 12 moving together with the cartridge body 1; the developing roller 2 is rotatably supported on the cartridge body 1, and has a developing roller shaft 21 and a main body portion 22; the first projection 11 is used for bearing the weight of the developing box, the second projection 12 is used for receiving the pressing force from the electronic imaging device, the second projection 12 is farther away from the developing roller 2 than the first projection in the second direction B and the third direction C, and the first direction A is the extending direction of the rotating shaft of the developing roller 2; the developing roller shaft 21 has a first end and a second end distant from the first end in the first direction a. The first end is directly contacted and electrically connected with the electronic imaging device, so that the developing box is simpler in structure, the installation mode is simplified, the miniaturization of the developing box is facilitated, and the electrical connection between the developing roller 2 and the electronic imaging device is more stable.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, those skilled in the art will appreciate that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A developing cartridge detachably mountable to an electrophotographic apparatus, comprising:
a cartridge body in which a developer is accommodated, the cartridge body having a first protrusion and a second protrusion, the first protrusion and the second protrusion moving together with the cartridge body;
the developing roller is rotatably supported on the box body and is provided with a developing roller shaft and a main body part wrapped outside the developing roller shaft; the first direction is the extending direction of the rotary shaft of the developing roller, the second direction is perpendicular to the first direction, and the third direction is perpendicular to the first direction and different from the second direction;
wherein the first projection bears a weight of the developing cartridge when the first projection is supported by a supporting surface of an electrophotographic apparatus, the second projection is for receiving a pressing force from the electrophotographic apparatus, the second projection is farther from the developing roller than the first projection in the second direction and the third direction, and the developing roller shaft has a first end and a second end that is farther from the first end in the first direction.
2. A cartridge according to claim 1, wherein said first end is in contact with and electrically connected to said electrophotographic apparatus.
3. A developing cartridge according to claim 2, further comprising a holder fixed to a side wall of said cartridge body; the bracket has a through hole through which the first end passes.
4. A developing cartridge according to claim 3, wherein said developing cartridge has a conductive member electrically connected to said electronic image forming apparatus, a projection of said conductive member in said first direction does not overlap a projection of said developing roller.
5. A developing cartridge according to claim 4, wherein said conductive member is made of a conductive material.
6. A developing cartridge according to claim 4, further comprising a developing roller electrode at an end portion of said developing roller shaft for electrically connecting said developing roller shaft and said conductive member.
7. A developing cartridge according to claim 6, further comprising a powder feed roller electrode at an end portion of said powder feed roller for electrically connecting said powder feed roller and said conductive member.
8. A developing cartridge according to claim 7, wherein said powder feed roller electrode and said developing roller electrode are not in contact with said electrophotographic apparatus.
9. A developing cartridge according to claim 8, wherein said holder is fixed to a side wall of said cartridge body; the conductive member is supported by the holder.
10. A developing cartridge according to claim 8, wherein said conductive member is supported by said cartridge body.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120433361 | 2021-02-26 | ||
| CN2021204356364 | 2021-02-26 | ||
| CN202120435636 | 2021-02-26 | ||
| CN2021204333610 | 2021-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216792682U true CN216792682U (en) | 2022-06-21 |
Family
ID=82011645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123382775.4U Active CN216792682U (en) | 2021-02-26 | 2021-12-29 | Developing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216792682U (en) |
-
2021
- 2021-12-29 CN CN202123382775.4U patent/CN216792682U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |