CN117687280A - Powder box and imaging equipment - Google Patents
Powder box and imaging equipment Download PDFInfo
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- CN117687280A CN117687280A CN202311399376.XA CN202311399376A CN117687280A CN 117687280 A CN117687280 A CN 117687280A CN 202311399376 A CN202311399376 A CN 202311399376A CN 117687280 A CN117687280 A CN 117687280A
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- frame
- chip
- developing
- drum
- side extension
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- 238000003384 imaging method Methods 0.000 title claims abstract description 40
- 239000000843 powder Substances 0.000 title claims abstract description 24
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 206010070834 Sensitisation Diseases 0.000 claims description 2
- 230000008313 sensitization Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
The invention provides a powder box and imaging equipment, wherein an electric contact is arranged at a position, close to the bottom, of a mounting cavity of the imaging equipment; the powder box comprises a developing frame, a drum frame, a developing roller, a photosensitive drum, a chip and a chip seat; the developing roller is rotatably supported on the developing frame, the photosensitive drum is rotatably supported on the drum frame, the developing frame is rotatable relative to the drum frame, the developing roller moves relative to the photosensitive drum between an image forming position in which the developing roller is in contact with the photosensitive drum and a cleaning position in which the developing roller is separated from the photosensitive drum; the chip is arranged in the chip seat and is electrically contacted with the electrical contact; the drum frame includes a frame main body portion extending in an axial direction of the photosensitive drum, and a first side extending portion provided at a first end of the frame main body portion and extending downward from the frame main body portion, the chip carrier being provided on the first side extending portion. The powder box can ensure that the chip and the electric contact of the imaging equipment are in correct and stable electric contact.
Description
Technical Field
The present invention relates to the field of electrophotographic imaging, and in particular, to a powder cartridge and an imaging apparatus.
Background
An electrophotographic image forming apparatus is an apparatus for forming an image on a printing medium such as paper using the principle of electrophotography, and includes a printer and a cartridge detachably mounted in the printer.
Referring to fig. 1, a conventional powder cartridge includes a developing unit 101 and an image forming unit 102. The developing unit 101 includes a developing frame 111, a stirring frame for conveying the toner in the toner hopper toward the developing roller 113, a developing roller 113 for conveying the toner to the surface of the photosensitive drum 122 for latent image, a transmission assembly for driving each moving member in the developing unit 101 to rotate, and the like, and the developing roller 113 and the stirring frame are rotatably mounted on the developing frame 111. The outer wall of the developing frame 111 is further provided with a chip holder 103, and the chip is detachably mounted on the chip holder 103.
The image forming unit 102 includes a drum frame 121, a photosensitive drum 122, a driving force receiving member, and the like, the photosensitive drum 122 being rotatably mounted on the drum frame 121, the driving force receiving member being provided at an axial end of the photosensitive drum 122, the rotational force of the image forming apparatus being coupled to the photosensitive drum 122. The developing frame 111 is hinged to the drum frame 121, and when the photosensitive drum 122 is cleaned, the developing frame 111 may be rotated at an angle with respect to the drum frame 121, thereby driving the developing roller 113 to be separated from the photosensitive drum 122.
When the powder box is correctly installed in the installation cavity of the imaging device, the lower side surface of the chip seat 103 is contacted with the lower surface of the installation cavity, and as the lower surface of the installation cavity of the imaging device is easily polluted by carbon powder, the chip seat 103 of the developing frame 111 can continuously scrape and pollute the carbon powder in the installation cavity onto the chip in the process of moving along with the developing frame 111, so that the electric contact surface of the chip is easily polluted, and poor electric contact between the chip and the electric contact of the imaging device is caused.
In addition, the die pad 103 is provided with a first rib 105 and a second rib 106 in a second direction perpendicular to the developing roller 113. When the powder box is mounted to the printer, the first rib 105 and the second rib 106 guide and position the imaging device electrical contacts in the imaging device mounting cavity. The addition of the first rib plate 105 and the second rib plate 106 on both sides of the chip carrier 103 also increases the structural complexity of the chip carrier 103, which is not beneficial to low-cost production.
Furthermore, the imaging unit 102 of the cartridge is stationary while the cartridge is mounted in the mounting cavity of the imaging device with which it is adapted, while the developing unit 101 is movable relative to the imaging unit 102, although the electrical contacts of the imaging device with which it is adapted are also movable. The chip holder 103 is disposed on the developing unit 101, and the chip holder 103 may also move while the developing unit 101 moves, which is disadvantageous in that the chip electrical contact surface in the chip holder 103 makes a correct and stable electrical contact with the electrical contact of the image forming apparatus after the powder cartridge is mounted.
Disclosure of Invention
A first object of the present invention is to provide a compact that ensures correct and stable electrical contact between the chip and the electrical contacts of the imaging device.
A second object of the present invention is to provide an image forming apparatus having the above-described cartridge.
In order to achieve the first object, the present invention provides a powder box detachably mounted in a mounting cavity of an imaging device, wherein an electric contact is arranged at a position, close to the bottom, of the mounting cavity; the powder box comprises a developing frame, a drum frame, a developing roller, a photosensitive drum, a chip and a chip seat; the developing roller is rotatably supported on the developing frame, the photosensitive drum is rotatably supported on the drum frame, the developing frame is rotatable relative to the drum frame, the developing roller moves relative to the photosensitive drum between an image forming position in which the developing roller is in contact with the photosensitive drum and a cleaning position in which the developing roller is separated from the photosensitive drum; the chip is arranged in the chip seat and is electrically contacted with the electrical contact; the drum frame includes a frame main body portion extending in an axial direction of the photosensitive drum, and a first side extending portion provided at a first end of the frame main body portion and extending downward from the frame main body portion, the chip carrier being provided on the first side extending portion.
According to the scheme, the chip seat for fixing the chip is arranged on the drum frame, so that when the photosensitive drum needs to be cleaned, the separation mechanism in the imaging device drives the developing unit to move, and in the process of separating the developing roller from the photosensitive drum, the chip seat cannot move because the imaging unit is fixed relative to the imaging device, after the powder box is installed in the imaging device, the chip electric contact surface is always in stable contact with the imaging device electric joint, and the chip seat is prevented from being arranged on the movable developing unit, and when the developing unit moves relative to the imaging unit, the chip seat and the chip electric contact surface on the developing unit move to influence the stability of electric contact between the chip electric contact surface and the electric contact of the imaging device.
One preferable scheme is that the chip holder and the drum frame are integrally formed; or the chip seat is fixedly connected with the drum frame through a fixing piece; or the chip seat and the drum frame are fixedly connected in a welding or clamping way.
Therefore, the chip seat and the drum frame are integrally injection molded, so that the production process can be simplified.
In a preferred scheme, the first side extension part is further provided with a first supporting hole, the first end of the photosensitive drum is in running fit with the first supporting hole, and the chip seat is located below the first supporting hole.
Further, the first side extension portion is further provided with a second supporting hole, the second supporting hole is located between the first supporting hole and the chip base, the first end of the developing roller is in rotary fit with the second supporting hole, and the second end of the developing roller is in rotary connection with the developing frame.
As can be seen, when the image forming apparatus enters the cleaning step, the separating mechanism within the image forming apparatus drives the developing unit to move, and since the first end of the developing roller is engaged with the second supporting hole of the drum frame, the first end of the developing roller is stationary, and the second end of the developing roller moves with the developing frame to incline and separate from the photosensitive drum.
In one preferred embodiment, the developing frame includes a developing frame body and two end caps, the two end caps being disposed at both ends of the developing frame body, respectively; the two end covers are provided with developing hinge parts, and the two ends of the drum frame are provided with imaging hinge parts; the powder box also comprises two positioning pins, wherein one positioning pin sequentially passes through one imaging hinge part and the developing hinge part on the same side.
In a preferred embodiment, the chip carrier includes a mounting slot, a carrier top wall and a carrier bottom wall; the chip is installed in the mounting groove, and seat roof and seat diapire are the plane wall.
Therefore, rib plates or other guiding and positioning structures are not arranged on the top wall and the bottom wall of the chip seat, so that the structure of the chip seat can be simplified, and the design and manufacturing cost of the die can be reduced.
In a preferred embodiment, the chip carrier is spaced from the bottom wall of the mounting cavity.
It follows that the chip carrier is not in contact with the bottom wall of the mounting cavity and a distance space is formed between the chip carrier and the bottom wall of the mounting cavity, so that the possibility of pollution of the electric contacts of the chip is further reduced.
In a preferred embodiment, the drum frame further includes a second side extension portion provided at an end of the frame main body portion remote from the first side extension portion; the first side extension portion is provided with first guide post, and the second side extension portion is provided with the second guide post, and first guide post and the coaxial setting of second guide post are all along the axial extension of sensitization drum, and first guide post extends to the direction of keeping away from frame main part from the outward surface of first side extension portion, and the second guide post extends to the direction of keeping away from frame main part from the outward surface of second side extension portion.
It can be seen that the first guide post and the second guide post are used for guiding and positioning the powder box when the powder box is installed to the imaging equipment.
In a preferred embodiment, the drum frame further includes a second side extension portion provided at an end of the frame main body portion remote from the first side extension portion; the developing frame is provided with a first guide post near the first side extension part, the second side extension part is provided with a second guide post, the first guide post and the second guide post are coaxially arranged and extend along the axial direction of the photosensitive drum, at least one part of the first guide post extends from the outer surface of the first side extension part to the direction far away from the frame main body part, and the second guide post extends from the outer surface of the second side extension part to the direction far away from the frame main body part.
In order to achieve the second object, the present invention provides an image forming apparatus provided with a mounting chamber in which the above-described powder cartridge is detachably mounted.
Drawings
Fig. 1 is a block diagram of a chip and a chip holder in a conventional compact.
Fig. 2 is a block diagram of a first embodiment of a drive head and a compact of the present invention.
Fig. 3 is a partial construction view of a first embodiment of the compact of the present invention.
Fig. 4 is an exploded view of a first embodiment of the compact of the present invention from a first perspective.
Fig. 5 is an exploded view of a first embodiment of the compact of the present invention from a second perspective.
Fig. 6 is a partial construction view of a second embodiment of the compact of the present invention.
Fig. 7 is an exploded view of a second embodiment of the compact of the present invention.
The invention is further described below with reference to the drawings and examples.
Detailed Description
First embodiment of the compact:
referring to fig. 2 to 5, the cartridge is detachably mounted in an image forming apparatus, the electrophotographic image forming apparatus includes a main body in which a mounting chamber is provided, a transmission head 10 is provided on a side wall of the mounting chamber, the transmission head 10 includes a gear portion 11 and a coupling recess, the gear portion 11 is located on a peripheral wall of the transmission head 10, and the coupling recess is located at an axial end of the transmission head 10.
The cartridge includes a developing unit 2 and a drum unit 3, the developing unit 2 includes a developing frame 21, and a developing roller 22 and a stirring frame (not shown), and a force receiving portion (not shown) is provided at the bottom of one end of the developing frame 21. The drum unit 3 includes a drum frame 31, a photosensitive drum 4 rotatably supported on the drum frame 31, and a cleaning blade 33 mounted on the drum frame 31, both ends of the cleaning blade 33 being supported on the drum frame 31, and blades of the cleaning blade 33 being abutted on the photosensitive drum 4 for cleaning residual powder on the photosensitive drum 4.
The developing frame 21 includes a developing frame main body 211 and two end caps 212, the two end caps 212 are respectively provided at both ends of the developing frame main body 211, the two end caps 212 are each provided with a developing hinge portion 213, both ends of the drum frame 31 are each provided with an imaging hinge portion 311, the powder cartridge further includes two positioning pins 12, and one positioning pin 12 sequentially passes through one imaging hinge portion and the developing hinge portion 213 of the same side, thereby realizing hinge of the developing frame 21 and the drum frame 31.
An elastic member such as a spring (not shown) is provided at the top of one end of the drum frame 31 away from the force receiving portion, a biasing member (not shown) is provided in the image forming apparatus, after the biasing member applies a biasing force to the force receiving portion, the developing frame 21 rotates relative to the drum frame 31, the developing roller 22 is separated from the photosensitive drum 4, the developing roller 22 moves to a cleaning position relative to the photosensitive drum 4, and at this time, the spring is forced to be in a compressed state; when the urging member moves reversely and the urging force to the force receiving portion is removed, the spring urges the developing frame 21 to rotate under the action of its own elastic restoring force, the developing roller 22 contacts the photosensitive drum 4, and the developing roller 22 moves to the image forming position with respect to the photosensitive drum 4.
One axial end of the photosensitive drum 4 is provided with a rotational force transmitting assembly 41, one axial end of the developing roller 3 is provided with a developing roller gear 5, an axial end of the agitator is provided with an agitator gear, the cartridge frame 20 includes the developing frame 21 and the drum frame 31, and the rotational force transmitting assembly 41, the agitator gear and the developing roller gear 5 are located on the same side of the cartridge frame 20 to constitute a gear train.
The box frame 20 is provided with a recess 201 near the rotational force transmission assembly 41, the recess 201 is recessed from a first end of the box frame 20 toward a second end of the box frame 20, and the driving head 10 may extend into the recess 201, so that a coupling recess of the driving head 10 is engaged with the rotational force transmission assembly 41 to receive the driving force.
The drum frame 31 includes a frame main body portion 312, a first side extension portion 313 and a second side extension portion 314, the frame main body portion 312 extends along the axial direction of the photosensitive drum 4, the first side extension portion 313 and the second side extension portion 314 are respectively provided at both ends of the frame main body portion 312 and each extend downward from the frame main body portion 312, a chip holder 6 is provided on the first side extension portion 313, the chip holder 6 and the drum frame 31 are integrally formed, a chip 60 is mounted in the chip holder 6, an electrical contact (not shown) is provided at a position of an installation cavity of the image forming apparatus near the bottom, and the chip 60 is in electrical contact with the electrical contact. The chip seat 6 includes mounting groove 61, seat roof 62 and seat diapire 63, and the chip 60 is installed in mounting groove 61, and seat roof 62 and seat diapire 63 are the plane wall, and seat roof 62 and seat diapire 63 of chip seat do not set up gusset or other guiding and locating structure, can simplify the structure of chip seat 6, reduce mould design and manufacturing cost.
The chip carrier 6 is spaced from the bottom wall of the mounting cavity, and the chip carrier 6 is not in contact with the bottom wall of the mounting cavity and forms a distance space therebetween to further reduce the possibility of contamination of the chip electrical contacts on the chip 60.
The first side extension 313 is further provided with a first supporting hole 315 and a second supporting hole 316, the first end of the photosensitive drum 4 is in running fit with the first supporting hole 315, and the chip holder 6 is located below the first supporting hole 315. The second supporting hole 316 is located between the first supporting hole 315 and the chip carrier 6, the first end of the developing roller 22 is rotatably fitted to the second supporting hole 316, and the second end of the developing roller 22 is rotatably connected to the developing frame 21.
The first side extension portion 313 is provided with a first guide post 317, the second side extension portion 314 is provided with a second guide post 318, the first guide post 317 and the second guide post 318 are coaxially disposed and each extend along the axial direction of the photosensitive drum 4, the first guide post 317 extends from the outer surface of the first side extension portion 313 in a direction away from the frame main body portion 312, and the second guide post 318 extends from the outer surface of the second side extension portion 314 in a direction away from the frame main body portion 312.
Therefore, when the photosensitive drum needs to be cleaned, the separation mechanism in the imaging device drives the developing unit to move, and in the process of separating the developing roller from the photosensitive drum, the imaging unit is fixed relative to the imaging device, so that the chip holder cannot move, after the powder box is installed in the imaging device, the chip electric contact surface is always in stable contact with the imaging device electric connector, the chip holder is prevented from being arranged on the movable developing unit, and when the developing unit moves relative to the imaging unit, the chip holder and the chip electric contact surface on the developing unit move, so that the stability of electric contact between the chip electric contact surface and the electric contact of the imaging device is affected.
Second embodiment of powder box:
as a description of the second embodiment of the compact of the present invention, only the differences from the first embodiment of the compact described above will be described below.
Referring to fig. 6 and 7, in the present embodiment, the first guide post 2317 is disposed on the end cap 2212 of the developing frame 221 near the first side extension 2313, and at least a portion of the first guide post 2317 extends from the outer surface of the first side extension 2313 in a direction away from the frame body 2312.
In addition, the chip seat and the drum frame can be fixedly connected through the fixing piece; or the chip seat and the drum frame are fixedly connected in a welding or clamping way. The above-described modifications can also achieve the object of the present invention.
Finally, it should be emphasized that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, but rather that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the invention, and any modifications, equivalent substitutions, improvements, etc. are intended to be included within the scope of the present invention.
Claims (10)
1. The powder box is detachably arranged in a mounting cavity of the imaging equipment, and an electric contact is arranged at the position, close to the bottom, of the mounting cavity;
the powder box comprises a developing frame, a drum frame, a developing roller, a photosensitive drum, a chip and a chip seat;
the developing roller is rotatably supported on the developing frame, the photosensitive drum is rotatably supported on the drum frame, the developing frame is rotatable relative to the drum frame, the developing roller moves relative to the photosensitive drum between an image forming position in which the developing roller is in contact with the photosensitive drum and a cleaning position in which the developing roller is separated from the photosensitive drum;
the chip is mounted in the chip holder and is in electrical contact with the electrical contacts;
the method is characterized in that:
the drum frame includes a frame body portion extending in an axial direction of the photosensitive drum, and a first side extending portion provided at a first end of the frame body portion and extending downward from the frame body portion, the chip carrier being provided on the first side extending portion.
2. The compact of claim 1, wherein:
the chip holder and the drum frame are integrally formed; or alternatively
The chip seat is fixedly connected with the drum frame through a fixing piece; or alternatively
The chip seat is fixedly connected with the drum frame in a welding or clamping mode.
3. The compact of claim 1, wherein:
the first side extension part is further provided with a first supporting hole, the first end of the photosensitive drum is in running fit with the first supporting hole, and the chip seat is located below the first supporting hole.
4. A compact according to claim 3, wherein:
the first side extension part is further provided with a second supporting hole, the second supporting hole is located between the first supporting hole and the chip seat, the first end of the developing roller is in running fit with the second supporting hole, and the second end of the developing roller is in running connection with the developing frame.
5. The compact of any one of claims 1 to 4 wherein:
the developing frame comprises a developing frame main body and two end covers, wherein the two end covers are respectively arranged at two ends of the developing frame main body;
the two end covers are provided with developing hinge parts, and the two ends of the drum frame are provided with imaging hinge parts;
the powder box further comprises two positioning pins, wherein one positioning pin sequentially penetrates through one imaging hinge part and the developing hinge part on the same side.
6. The compact of any one of claims 1 to 4 wherein:
the chip seat comprises a mounting groove, a seat top wall and a seat bottom wall;
the chip is mounted in the mounting groove, and the seat top wall and the seat bottom wall are both plane walls.
7. The compact of any one of claims 1 to 4 wherein:
the chip seat is arranged at intervals with the bottom wall of the mounting cavity.
8. The compact of any one of claims 1 to 4 wherein:
the drum frame further includes a second side extension portion provided at an end of the frame main body portion remote from the first side extension portion;
the first side extension portion is provided with first guide post, the second side extension portion is provided with the second guide post, first guide post with the coaxial setting of second guide post is all along the axial extension of sensitization drum, first guide post is followed the outward appearance of first side extension portion is to keeping away from the direction of frame main part extends, the second guide post is followed the outward appearance of second side extension portion is to keeping away from the direction of frame main part extends.
9. The compact of any one of claims 1 to 4 wherein:
the drum frame further includes a second side extension portion provided at an end of the frame main body portion remote from the first side extension portion;
the developing frame is provided with a first guide post close to the first side extension part, the second side extension part is provided with a second guide post, the first guide post and the second guide post are coaxially arranged and extend along the axial direction of the photosensitive drum, at least one part of the first guide post extends from the outer surface of the first side extension part to the direction far away from the frame main body part, and the second guide post extends from the outer surface of the second side extension part to the direction far away from the frame main body part.
10. An image forming apparatus provided with a mounting chamber, wherein the cartridge according to any one of claims 1 to 9 is detachably mounted in the mounting chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311399376.XA CN117687280A (en) | 2023-10-25 | 2023-10-25 | Powder box and imaging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311399376.XA CN117687280A (en) | 2023-10-25 | 2023-10-25 | Powder box and imaging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117687280A true CN117687280A (en) | 2024-03-12 |
Family
ID=90136001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311399376.XA Pending CN117687280A (en) | 2023-10-25 | 2023-10-25 | Powder box and imaging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117687280A (en) |
-
2023
- 2023-10-25 CN CN202311399376.XA patent/CN117687280A/en active Pending
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