CN107577131B - Rotational force transmitting assembly, developing cartridge and electrophotographic image forming system - Google Patents
Rotational force transmitting assembly, developing cartridge and electrophotographic image forming system Download PDFInfo
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- CN107577131B CN107577131B CN201711044824.9A CN201711044824A CN107577131B CN 107577131 B CN107577131 B CN 107577131B CN 201711044824 A CN201711044824 A CN 201711044824A CN 107577131 B CN107577131 B CN 107577131B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 179
- 230000002093 peripheral effect Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000003384 imaging method Methods 0.000 claims description 5
- 238000007639 printing Methods 0.000 description 7
- 230000000694 effects Effects 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
- 230000004308 accommodation Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention provides a rotational force transmitting assembly, a developing cartridge and an electrophotographic image forming system. The rotary force transmission assembly comprises a rotary force transmission part and a transmission gear, the transmission gear is provided with a containing cavity with an opening at one axial end, the rotary force transmission part is arranged in the containing cavity and can reciprocate along the axial direction of the transmission gear relative to the transmission gear, the transmission head comprises a transmission main shaft and a transmission rod, the transmission rod is arranged on the transmission main shaft in a penetrating way, and the transmission rod is positioned at a position close to one axial end of the transmission main shaft; the rotary force transmission piece comprises a guide rod and two input teeth positioned at one axial end of the guide rod; each input tooth comprises a contact part contacted with the transmission rod, and the length of each contact part in the radial direction of the transmission rod is smaller than or equal to the distance between one side of the contact part, which is close to the transmission rod, and the peripheral wall of the transmission rod. Therefore, when the rotary force transmission assembly is engaged with and disengaged from the transmission head, the relative resistance is smaller, and the engagement process and the disengagement process are more convenient and smoother.
Description
Technical Field
The present invention relates to the field of electrophotographic image forming printing technology, and more particularly, to a developing cartridge detachably mountable to an electrophotographic image forming apparatus, a rotational force transmitting assembly thereof, and an electrophotographic image forming system having the developing cartridge.
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 copying machine, a printer, a facsimile machine, an all-in-one machine, and the like, and generally includes a main body and a developing cartridge detachably mounted in the main body. The developing box is provided with a rotating element and a rotating force transmission component for receiving the rotating driving force provided by a host machine such as a printer, the rotating element at least comprises one of the developing element, a photosensitive drum and a charging element, and after the developing box is mounted on the host machine, the rotating force transmission component is matched with a driving mechanism of the host machine and receives the rotating force provided by the driving mechanism, so that the rotating element is driven to rotate.
A developing cartridge is disclosed in chinese patent publication No. CN102067042a, in which a rotational force transmitting member is now a ball-type universal joint. The ball-and-socket joint is easy to separate from the gear or deviate from the direction, particularly during transportation, and in addition, the ball-and-socket joint structure is difficult to engage with a driving mechanism of a host machine, so that the transmission function of the ball-and-socket joint is lost or the operation is unstable. In order to enable the ball-type universal joint to be matched with the driving mechanism of the main machine, a torsion spring and a limiting piece are generally required to be arranged for positioning the ball-type universal joint, so that the number of parts is increased, and the structure of the developing box is complicated.
In addition, as shown in fig. 1 and 2, in the conventional developing cartridge, when the rotational force transmission assembly 101 with the telescopic function is engaged with the transmission head 102 on the host machine, the contact length X0 between the input tooth 1011 and the transmission rod 1021 of the transmission head 102 is greater than the distance K0 between the transmission spindle 1022 side of the input tooth 1011, which is close to the transmission head 102, and the transmission spindle 1022, so that the rotational force transmission assembly 101 must maintain a specific fixed angle, otherwise, the rotational force transmission assembly 101 of the developing cartridge 10 is difficult to separate from the transmission head 102 of the host machine, so that the problem occurs in the cooperation of the transmission head 102 and the rotational force transmission assembly 101, and the problem occurs in the installation of the user, especially in the host machine, in which the developing cartridge 10 needs to be frequently engaged with and separated from the transmission head 102, so that the problem occurs in printing, and the actual printing effect is affected.
Disclosure of Invention
The main object of the present invention is to provide a rotational force transmitting assembly which has a simple structure and can facilitate the mounting and dismounting of the developing cartridge.
Another object of the present invention is to provide a developing cartridge having the above-described rotational force transmitting assembly.
It is still another object of the present invention to provide an electrophotographic image forming system having the above-described developing cartridge.
In order to achieve the above-mentioned main object, the present invention provides a rotational force transmitting assembly comprising a rotational force transmitting member and a transmitting gear, the transmitting gear being provided with a receiving chamber open at one axial end thereof, the rotational force transmitting member being mounted in the receiving chamber and reciprocally movable in an axial direction of the transmitting gear with respect to the transmitting gear, the rotational force transmitting assembly being for receiving a rotational driving force outputted from a driving head of an electrophotographic image forming apparatus, the driving head comprising a driving spindle and a driving lever, the driving lever being provided to pass through the driving spindle and extending outwardly from a peripheral wall of the driving spindle in a radial direction of the driving spindle, the driving lever being located at a position near one axial end of the driving spindle; the rotary force transmission piece comprises a guide rod and two input teeth positioned at one axial end of the guide rod, the two input teeth are respectively positioned at two ends of the transmission rod, and the input teeth are abutted with the transmission rod and used for receiving rotary driving force; each input tooth comprises a contact part contacted with the transmission rod, and the length of each contact part in the radial direction of the transmission rod is smaller than or equal to the distance between one side of the contact part, which is close to the transmission rod, and the peripheral wall of the transmission rod.
According to the scheme, the length of the contact part of the input tooth of the rotary force transmission assembly in the radial direction of the transmission rod is smaller than or equal to the distance between one side, close to the transmission rod, of the contact part and the peripheral wall of the transmission rod, so that when the rotary force transmission assembly is engaged with and disengaged from the transmission head, the relative resistance is smaller, and the engagement process and the disengagement process are more convenient and smoother.
In a preferred embodiment, the free ends of the input teeth are curved away from the direction of rotation of the rotational force transmission element, and the free ends of the input teeth abut against the outer circumferential wall of the transmission rod.
It follows that the free ends of the input teeth are bent away from the direction of rotation of the rotational force transmitting member, such that the free ends of the input teeth wrap around a portion of the drive rod, thereby preventing the rotational force transmitting member from being disengaged from the drive head.
The rotating force transmission assembly also comprises a limiting mechanism, wherein the limiting mechanism comprises an axial limiting part, a transmission shaft and an elastic part, the axial limiting part is clamped in the accommodating cavity, the rotating force transmission part penetrates through the axial limiting part and moves back and forth along the axis of the axial limiting part, the first end of the elastic part is abutted with the bottom wall of the accommodating cavity, and the second end of the elastic part is connected to the transmission shaft; the transmission shaft is detachably fixed to the guide bar and extends outwardly from a side wall of the guide bar in a radial direction of the guide bar.
Therefore, the axial limiting piece, the transmission shaft and the elastic piece in the limiting mechanism are matched to enable the rotary force transmission piece to reciprocate in the accommodating cavity of the transmission gear along the axial direction of the transmission gear, so that the risk that the rotary force transmission piece falls off from the transmission gear can be avoided; the transmission shaft is detachably fixed on the guide rod, so that the assembly and the disassembly are convenient.
The further scheme is that a limiting part is arranged on the inner wall of the axial limiting part, and the transmission shaft is abutted to the limiting part.
In a preferred scheme, a limiting block is arranged on the bottom wall of the accommodating cavity, a gap is formed between the limiting block and the side wall of the accommodating cavity, and the side wall of the axial limiting piece is located in the gap.
The axial limiting part is provided with a plurality of bulges on the peripheral wall, a plurality of grooves matched with the bulges are formed in the side wall of the accommodating cavity, and the bulges are clamped in the grooves.
In a preferred embodiment, the transmission shaft is a pin, the guide rod is provided with a through hole penetrating the guide rod in the radial direction, and the pin is installed in the through hole in an interference fit manner.
Therefore, the assembly is simple and convenient, and the stability of the connection of the transmission shaft and the guide rod is improved.
In a preferred scheme, the transmission shaft is a screw, a threaded hole penetrating the guide rod in the radial direction is formed in the guide rod, and the screw is matched with the threaded hole.
Therefore, the stability of connection of the transmission shaft and the guide rod is improved, and the threaded connection is convenient for replacing each part in the rotary force transmission assembly.
In order to achieve the above-mentioned another object, the present invention provides a developing cartridge comprising a cartridge body and a rotational force transmitting assembly disposed outside an end wall of the cartridge body; the rotational force transmitting assembly is the rotational force transmitting assembly described above.
According to the scheme, the length of the contact part of the input tooth of the rotary force transmission assembly in the radial direction of the transmission rod is smaller than or equal to the distance between one side, close to the transmission rod, of the contact part and the peripheral wall of the transmission rod, so that when the rotary force transmission assembly of the developing box is engaged with and disengaged from the transmission head, the relative resistance is smaller, and the engagement process and the disengagement process are more convenient and smoother.
In order to achieve the above-described still another object, the present invention provides an electrophotographic image forming system including an electrophotographic image forming apparatus and a developing cartridge detachably mountable to the electrophotographic image forming apparatus, the electrophotographic image forming apparatus including a transfer head, a photosensitive drum, and a plurality of developing cartridges disposed in parallel with the photosensitive drum, the plurality of developing cartridges being arranged along a circumferential direction of the photosensitive drum, the developing cartridges being rotatable about an axis of the photosensitive drum; the developing cartridge comprises a cartridge body and a rotating force transmission assembly arranged outside one end wall of the cartridge body, wherein the rotating force transmission assembly of one developing cartridge is engaged with the transmission head; the rotational force transmitting assembly is the rotational force transmitting assembly described above.
According to the scheme, the length of the contact part of the input tooth of the rotary force transmission assembly in the radial direction of the transmission rod is smaller than or equal to the distance between one side, close to the transmission rod, of the contact part and the peripheral wall of the transmission rod, so that when the rotary force transmission assembly of the developing box is engaged with and disengaged from the transmission head, the relative resistance is smaller, and the engagement process and the disengagement process are more convenient and smoother. And, when a plurality of developing cartridges are alternately rotated around the axis of the photosensitive drum to a position engaged with the transmission head, the rotational force transmitting assembly of each developing cartridge is continuously engaged with and disengaged from the transmission head, smooth engagement and disengagement of the developing cartridge with the transmission head on the electrophotographic image forming apparatus can be achieved, and the printing effect of the electrophotographic image forming apparatus is effectively ensured.
Drawings
Fig. 1 is a schematic structural view of a conventional developing cartridge.
Fig. 2 is a schematic view of a conventional developing cartridge in which a rotational force transmitting assembly is engaged with a driving head of an electrophotographic image forming apparatus.
Fig. 3 is a schematic view of the structure of an embodiment of the electrophotographic image forming system of the present invention.
Fig. 4 is a schematic view of the structure of the developing cartridge in engagement with the driving head in the embodiment of the electrophotographic image forming system of the present invention.
FIG. 5 is a perspective view of a rotational force transfer assembly engaged with a drive head in an embodiment of an electrophotographic imaging system of the invention.
FIG. 6 is a schematic view of the rotational force transmitting member engaged with the drive head in an embodiment of an electrophotographic imaging system of the invention.
FIG. 7 is an exploded view of the rotational force transmitting member of an embodiment of the electrophotographic image forming system of the present invention.
FIG. 8 is a schematic view of the rotational force transmitting member and the axial stop in an embodiment of an electrophotographic imaging system of the invention.
The invention is further described below with reference to examples and figures thereof.
Detailed Description
Referring to fig. 3 and 4, the electrophotographic image forming system of the present embodiment includes an electrophotographic image forming apparatus 1 and a developing cartridge 2 detachably mounted in the electrophotographic image forming apparatus 1, the electrophotographic image forming apparatus 1 includes a transfer head 11, a photosensitive drum 12, and four developing cartridges 2, the transfer head 11 includes a transfer main shaft 111 and a transfer lever 112, the transfer lever 112 is provided to pass through the transfer main shaft 111 and extends outward from a peripheral wall of the transfer main shaft 111 in a radial direction of the transfer main shaft 111, and the transfer lever 112 is located at a position near an axial end of the transfer main shaft 111. Each developing cartridge 2 is filled with toner of one color, the developing cartridges 2 are disposed in parallel with the photosensitive drum 12, four developing cartridges 2 are arranged along the circumferential direction of the photosensitive drum 12, and each developing cartridge 2 is rotatable about the axis of the photosensitive drum 12 to a coupling position where the developing cartridge 2 is engaged with the transmission head 11.
The developing cartridge 2 includes a cartridge body 21, a developing roller rotatably supported about its own axis between both end walls of the cartridge body 21, and a rotational force transmitting assembly 3 provided outside one end wall of the cartridge body 21. One end of the developing roller is provided with a developing roller gear, and the rotating force transmission assembly 3 can drive the developing roller gear to rotate, so that the developing roller is driven to rotate around the axis of the developing roller. In addition, when one of the developing cartridges 2 is rotated to the coupling position, the rotational force transmitting assembly 3 of that developing cartridge 2 is engaged with the transmission head 11.
Referring to fig. 5 to 7, the rotational force transmitting assembly 3 is constituted by a rotational force transmitting member 5, a stopper mechanism, and a transmitting gear 6. The rotational force transmitting assembly 3 is for receiving the rotational driving force output from the transmission head 11.
The transmission gear 6 is meshed with the developing roller gear, the transmission gear 6 has a substantially cylindrical shape, and a bevel gear 60 for transmitting the rotational force received by the transmission gear 6 to other rotating members such as the developing roller gear is provided on the radially outer wall of the transmission gear 6. The transmission gear 6 is provided with a housing chamber 61 open at one axial end thereof, a guide hole 62 communicating with the housing chamber 61 is formed on a bottom wall of the housing chamber 61, the rotational force transmitting member 5 is installed in the housing chamber 61, and the rotational force transmitting member 5 is reciprocally movable in an axial direction of the transmission gear 6 with respect to the transmission gear 6.
The rotational force transmitting member 5 includes a guide rod 51 and two input teeth 52, 53 at one axial end of the guide rod 51, the two input teeth 52, 53 being located at both ends of a transmission rod 112, respectively, the two input teeth 52, 53 being in abutment with the transmission rod 112 for receiving rotational driving force. The input teeth 52 include a contact portion 520 contacting one end of the transmission rod 112, and a length X1 of the contact portion 520 in a radial direction of the transmission rod 112 is smaller than or equal to a distance K1 between a side of the contact portion, which is close to the transmission rod 112, and a peripheral wall of the transmission rod 112, that is, X1 is smaller than or equal to K1; the input tooth 53 includes a contact portion 530 that contacts the other end of the transmission rod 112, and a length X2 of the contact portion 530 in the radial direction of the transmission rod 112 is smaller than or equal to a distance K2 between a side of the contact portion, which is close to the transmission rod 112, and a peripheral wall of the transmission rod 112, that is, X2 is equal to or smaller than K2. When the rotating force transmission component of the developing box is jointed with and separated from the transmission head, the relative resistance is smaller, the jointing process and the separating process are more convenient and smoother, and the process that each developing box rotates to the jointing position around the axis of the photosensitive drum and rotates from the jointing position to the separating position is smooth, so that the printing effect of the electrophotographic imaging equipment can be effectively ensured.
When the transmission head 11 applies a rotational force to the rotational force transmitting member 5, the free ends 521 of the input teeth 52 are bent away from the rotational force transmitting member 5, and the free ends 521 of the input teeth 52 are brought into contact with the outer peripheral wall of the transmission rod 112, and the free ends 521 of the slightly bent input teeth 52 wrap around a part of the transmission rod 112 from one side, thereby preventing the rotational force transmitting member 5 from being separated from the transmission head 11 and improving the coupling stability between the rotational force transmitting member 5 and the transmission head 11.
Referring to fig. 7 and 8, the stopper mechanism is constituted by an axial stopper 41, a transmission shaft 42, and an elastic member 43. The limiting mechanism is for limiting the displacement of the rotational force transmitting member 5 in the axial direction of the transmitting gear 6.
The axial limiting piece 41 is clamped in the accommodating cavity 61 and covers the open end of the accommodating cavity 61, the axial limiting piece 41 and the transmission gear 6 are coaxially arranged, and the rotary force transmission piece 5 penetrates through the axial limiting piece 41 and moves back and forth along the axis of the axial limiting piece 41. The axial stopper 41 has a substantially cylindrical outer shape, and is provided with a housing chamber 413 open at one axial end thereof, and a guide hole 414 communicating with the housing chamber 413 is formed at the other axial end thereof. The inner wall of the axial limiter 41 is provided with a limiter 411, the limiter 411 is a convex strip extending towards the radial center of the axial limiter 41, and the convex strip is parallel to the axis of the axial limiter 41. Two limiting blocks 63 are arranged on the bottom wall of the accommodating cavity 61, a gap is formed between the limiting blocks 63 and the side wall of the accommodating cavity 61, and the side wall of the axial limiting piece 41 is located in the gap. A plurality of protrusions 412 are arranged on the outer peripheral wall of the axial limiting member 41, a plurality of grooves 64 matched with the protrusions 412 are formed in the side wall of the accommodating cavity 61, and the protrusions 412 are clamped in the grooves 64, so that the axial limiting member 41 and the transmission gear 6 are positioned in the circumferential direction, and the axial limiting member 41 is fixed in the accommodating cavity 61 of the transmission gear 6.
The transmission shaft 42 is detachably fixed to the guide rod 51 and extends outward from the side wall of the guide rod 51 in the radial direction of the guide rod 51. Alternatively, the transmission shaft 42 is a pin, the guide rod 51 is provided with a through hole 511 penetrating the guide rod 51 in the radial direction, and the pin is mounted in the through hole 511 in an interference fit. A section of the guide rod 51 adjacent to the input tooth 52 is a force receiving section 512 for receiving a force forcing the rotational force transmitting member 5 to rotate relative to the transmitting gear 6 about the rotational axis within a predetermined angular range.
The other axial end of the guide rod 51 passes through the guide hole 414, the accommodation chamber 413, the spring 43, and the accommodation chamber 61 in order to reach the guide hole 62 in clearance fit therewith, so that the rotational force transmitting member 5 can reciprocate in the axial direction of the guide rod 51 with respect to the transmission gear 6. In the circumferential direction of the axial stopper 41, the transmission shaft 42 is in abutting contact with the stopper 411 at the position of the stopper 411, thereby transmitting the rotational force received by the rotational force transmitting member 5 to the axial stopper 41. When the force receiving section 512 is acted by the circumferential torque, the rotary force transmitting member 5 can rotate around the rotation axis thereof relative to the transmitting gear 6 within a predetermined angle range, and the predetermined angle range is regulated and controlled by the structures, sizes and numbers of the limiting portions 411 and the transmitting shafts 42.
The first end of the elastic member 43 abuts against the bottom wall of the accommodating chamber 61, and the second end of the elastic member 43 is connected to the transmission shaft 42. Preferably, the elastic member 43 in the present embodiment is a spring. The elastic restoring force of the spring in the axial direction forces the transmission shaft 42 against the axial limiter 41.
In addition, the transmission shaft can also be a screw, a threaded hole penetrating through the guide rod in the radial direction is formed in the guide rod, and the screw is matched with the threaded hole.
From the above, the length of the contact part of the input tooth of the rotary force transmission assembly in the radial direction of the transmission rod is smaller than or equal to the distance between one side of the contact part, which is close to the transmission rod, and the peripheral wall of the transmission rod, so that when the rotary force transmission assembly of the developing box is engaged with and disengaged from the transmission head, the relative resistance is smaller, and the engagement process and the disengagement process are more convenient and smoother. When the four developing cartridges are alternately rotated around the axis of the photosensitive drum to the position engaged with the transmission head, the rotational force transmitting assembly of each developing cartridge is continuously engaged with and disengaged from the transmission head, smooth engagement and disengagement of the developing cartridge with and from the transmission head on the electrophotographic image forming apparatus can be achieved, and the printing effect of the electrophotographic image forming apparatus is effectively ensured.
It should be noted that the above description is only of the preferred embodiments of the present invention, and it should be noted that it is possible for those skilled in the art to make several variations and modifications without departing from the scope of the present invention.
Claims (8)
1. The rotary force transmission assembly comprises a rotary force transmission member and a transmission gear, wherein the transmission gear is provided with a containing cavity which is opened at one axial end of the transmission gear, the rotary force transmission member is arranged in the containing cavity and can reciprocate along the axial direction of the transmission gear relative to the transmission gear, the rotary force transmission assembly is used for receiving rotary driving force output by a transmission head of the electrophotographic imaging equipment, the transmission head comprises a transmission main shaft and a transmission rod, the transmission rod penetrates through the transmission main shaft and extends outwards from the peripheral wall of the transmission main shaft in the radial direction of the transmission main shaft, and the transmission rod is positioned at a position close to one axial end of the transmission main shaft;
The method is characterized in that:
The rotary force transmission piece comprises a guide rod and two input teeth positioned at one axial end of the guide rod, the two input teeth are respectively positioned at two ends of the transmission rod, and the input teeth are abutted with the transmission rod and used for receiving rotary driving force;
Each input tooth comprises a contact part contacted with the transmission rod, and the length of each contact part in the radial direction of the transmission rod is smaller than or equal to the distance between the side, close to the transmission rod, of the contact part and the peripheral wall of the transmission rod;
the free ends of the input teeth are bent back to the rotating direction of the rotating force transmission piece, and the free ends of the input teeth are abutted with the peripheral wall of the transmission rod;
The rotary force transmission assembly further comprises a limiting mechanism, the limiting mechanism comprises an axial limiting part, a transmission shaft and an elastic part, the axial limiting part is clamped in the accommodating cavity and coaxially arranged with the transmission gear, the rotary force transmission part is arranged in the axial limiting part in a penetrating mode and moves back and forth along the axis of the axial limiting part, the first end of the elastic part is abutted to the bottom wall of the accommodating cavity, and the second end of the elastic part is connected to the transmission shaft; the transmission shaft is detachably fixed to the guide bar and extends outward from a side wall of the guide bar in a radial direction of the guide bar.
2. A rotational force transfer assembly according to claim 1, wherein:
The inner wall of the axial limiting part is provided with a limiting part, and the transmission shaft is abutted to the limiting part.
3. The rotational force transfer assembly of claim 2, wherein:
The bottom wall of the accommodating cavity is provided with a limiting block, a gap is reserved between the limiting block and the side wall of the accommodating cavity, and the side wall of the axial limiting part is positioned in the gap.
4. A rotational force transfer assembly according to any one of claims 1 to 3, wherein:
The axial limiting part is characterized in that a plurality of protrusions are arranged on the peripheral wall of the axial limiting part, a plurality of grooves matched with the protrusions are formed in the side wall of the accommodating cavity, and the protrusions are clamped in the grooves.
5. A rotational force transfer assembly according to any one of claims 1 to 3, wherein:
the transmission shaft is a pin, a through hole penetrating through the guide rod in the radial direction is formed in the guide rod, and the pin is installed in the through hole in an interference fit mode.
6. A rotational force transfer assembly according to any one of claims 1 to 3, wherein:
the transmission shaft is a screw, a threaded hole penetrating through the guide rod in the radial direction is formed in the guide rod, and the screw is matched with the threaded hole.
7. Developing cartridge, including the box body and set up the external rotation power transmission subassembly of an end wall of box body, its characterized in that:
the rotational force transmitting assembly is the rotational force transmitting assembly according to any one of claims 1 to 6.
8. An electrophotographic image forming system including an electrophotographic image forming apparatus and a developing cartridge detachably mountable to the electrophotographic image forming apparatus, characterized in that:
The electrophotographic image forming apparatus includes a transmission head, a photosensitive drum, and a plurality of developing cartridges disposed in parallel with the photosensitive drum, the plurality of developing cartridges being arranged along a circumferential direction of the photosensitive drum, the developing cartridges being rotatable about an axis of the photosensitive drum; the developing cartridge comprises a cartridge body and a rotational force transmission assembly arranged outside an end wall of the cartridge body, wherein the rotational force transmission assembly of one developing cartridge is engaged with the transmission head; the rotational force transmitting assembly is the rotational force transmitting assembly according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711044824.9A CN107577131B (en) | 2017-10-31 | 2017-10-31 | Rotational force transmitting assembly, developing cartridge and electrophotographic image forming system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711044824.9A CN107577131B (en) | 2017-10-31 | 2017-10-31 | Rotational force transmitting assembly, developing cartridge and electrophotographic image forming system |
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| CN107577131A CN107577131A (en) | 2018-01-12 |
| CN107577131B true CN107577131B (en) | 2024-06-21 |
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| CN201711044824.9A Active CN107577131B (en) | 2017-10-31 | 2017-10-31 | Rotational force transmitting assembly, developing cartridge and electrophotographic image forming system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108762016B (en) * | 2018-08-17 | 2024-04-26 | 珠海天威飞马打印耗材有限公司 | Rotational force transmitting assembly, roller and process cartridge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219736A (en) * | 2017-07-28 | 2017-09-29 | 珠海天威飞马打印耗材有限公司 | Rotate force transfer unit and handle box |
| CN207636931U (en) * | 2017-10-31 | 2018-07-20 | 珠海天威飞马打印耗材有限公司 | Rotate force transfer unit, Delevoping cartridge and electrophotographic image forming system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5495671B2 (en) * | 2008-08-27 | 2014-05-21 | キヤノン株式会社 | Developing cartridge and coupling member |
| JP5371627B2 (en) * | 2008-08-27 | 2013-12-18 | キヤノン株式会社 | Developing device, developing cartridge, and electrophotographic image forming apparatus |
| TW201502724A (en) * | 2013-07-08 | 2015-01-16 | Gen Plastic Ind Co Ltd | Transmission assembly of photosensitive drum |
| JP2016110047A (en) * | 2014-10-31 | 2016-06-20 | 三菱化学株式会社 | End member, process cartridge, and method for detaching process cartridge |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219736A (en) * | 2017-07-28 | 2017-09-29 | 珠海天威飞马打印耗材有限公司 | Rotate force transfer unit and handle box |
| CN207636931U (en) * | 2017-10-31 | 2018-07-20 | 珠海天威飞马打印耗材有限公司 | Rotate force transfer unit, Delevoping cartridge and electrophotographic image forming system |
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