A process cartridge of a clutch drive

Abstract

The present application provides a kind of processing box of clutch drive, including developing assembly, developing assembly includes: developing roller, developing roller drive head, clutch assembly and poking piece, the end of developing roller is provided with developing roller driven gear;Developing roller drive head is arranged in the side of developing roller driven gear and is transmission connection with developing roller driven gear;Clutch assembly can make the power transmission between developing roller driven gear and developing roller drive head be cut off, and can make the power transmission between developing roller driven gear and developing roller drive head be cut off reestablish;Poking piece can trigger clutch assembly to exert the function of clutching;The present application can effectively cut off the power input of developing assembly when separating cleaning, makes it stop running, to solve the above-mentioned wear, heat accumulation and toner loss problem, improve print quality and service life.

Description

Technical Field

[0001] This invention relates to the field of electronic imaging technology, and more specifically to a clutch-driven processing box. Background Technology

[0002] In most integrated toner cartridges on the market, the photosensitive drum and developing roller assembly are powered by the same power source, typically through the meshing of a gear on the photosensitive drum and a driven gear on the developing roller to transmit driving force. When the printer performs a cleaning operation, a mechanical actuation mechanism separates the developing roller from the photosensitive drum, allowing the photosensitive drum to operate independently to transfer residual waste toner to the waste toner container.

[0003] However, in order to ensure smooth transmission, the power of the photosensitive drum and the developing roller is often provided by the same power source. During the separation and cleaning process, the photosensitive drum needs to be operated, and the developing assembly is usually connected and operates accordingly.

[0004] This design has significant drawbacks: First, in cleaning mode, the continuous operation of the developing component intensifies friction between the toner and the components, leading to a decline in the conductivity and other quality properties of the toner. Second, the printer's frequent printing and cleaning cycles keep the developing roller in a state of constant friction, which can easily cause mechanical wear. Third, prolonged friction can cause heat buildup on the developing roller, which can lead to toner melting or sticking, resulting in printing defects such as background gray and black spots. Fourth, the continuous cleaning separation and reassembly during printing, along with the constant collisions between the photosensitive drum and the developing roller, can easily lead to unstable print quality. Summary of the Invention

[0005] The purpose of this invention is to provide a clutch-driven processing cartridge that can effectively cut off the power input to the developing assembly and stop its operation during separation and cleaning.

[0006] To achieve the above objectives, the present invention provides a clutch-driven processing box, including a developing assembly. The developing assembly includes a developing roller, a developing roller drive head, a clutch assembly, and a toggle member. A developing roller driven gear is provided at the end of the developing roller. The developing roller drive head is disposed on one side of the developing roller driven gear and is connected to the developing roller driven gear in a transmission manner. The clutch assembly can cut off the power transmission between the developing roller driven gear and the developing roller drive head, and can restore the cut-off power transmission between the developing roller driven gear and the developing roller drive head. The toggle member can trigger the clutch assembly to perform the clutch function.

[0007] As can be seen from the above scheme, with the above settings, when the processing cartridge enters the cleaning state, the clutch assembly cuts off the power transmission path between the developing roller driven gear and the developing roller drive head, preventing the developing roller drive head from driving the developing roller to rotate. Simultaneously, a power source inside the printer drives the photosensitive drum to rotate continuously, transferring residual waste toner from the surface of the photosensitive drum to the waste toner container. During the cleaning process, the developing roller remains stationary, which avoids print quality problems such as deterioration of toner's electrical properties and reduced fluidity due to prolonged friction with the developing roller. It also significantly reduces mechanical wear on adjacent components such as the developing roller, toner blade, and toner supply roller, and reduces abnormal toner loss. When the processing cartridge switches to the printing state, the clutch assembly can restore the power transmission between the developing roller driven gear and the developing roller drive head. Another power source in the printer drives the developing roller to rotate again, and the toner supply and developing process returns to normal, ensuring printing continuity and stability. In cleaning mode, this invention can accurately and reliably cut off the power input to the developing assembly, thereby avoiding the drawbacks of heat accumulation, wear and toner performance degradation caused by the idling of the developing roller, thus effectively improving print quality and extending the service life of the processing cartridge.

[0008] A further option is that the clutch assembly includes: The rotating ring is sleeved on the outside of the developing roller drive head and can rotate around the axis of the developing roller drive head under the action of the actuating component. The developing roller drive gear is sleeved on the outside of the developing roller drive head and meshes with the developing roller driven gear. A separating gear assembly is sleeved on the outside of the developing roller drive head and disposed inside the developing roller drive gear. The separating gear assembly is provided with a first meshing part, and the developing roller drive head is provided with a second meshing part. The separating gear assembly can move along the axis of the developing roller drive head, so that the first meshing part and the second meshing part mesh or separate.

[0009] As can be seen from the above scheme, through the above settings, the actuating component realizes the clutch and engagement switching of the separation gear assembly through the moving ring component, which has the advantages of simple structure and convenient operation.

[0010] A further solution is that when the processing cartridge needs to stop working, the separating gear assembly moves away from the second engagement part along the axis of the developing roller drive head, so that the first engagement part separates from the second engagement part.

[0011] A further embodiment is that the separating gear assembly includes a transmission ring, a clutch, and a first elastic element. The transmission ring and the clutch are both sleeved on the outside of the developing roller drive head, and the transmission ring is disposed between the rotating ring and the clutch. The first elastic element elastically abuts against the side of the clutch facing away from the transmission ring. The first meshing part is disposed on the clutch and can extend through the transmission ring to the second meshing part. When the processing cartridge needs to continue working, the clutch moves along the axis of the developing roller drive head towards the second engagement part under the action of the first elastic element, so that the first engagement part and the second engagement part engage again.

[0012] As can be seen from the above scheme, with the above settings, when the external force that forces the first meshing part to separate from the second meshing part disappears, the first elastic element will drive the first meshing part to automatically mesh with the second meshing part, thereby quickly switching to the working state.

[0013] A further embodiment is that the moving ring component is provided with a first protrusion extending along the axial direction of the moving ring component, and the first protrusion is provided with a first inclined surface; The transmission ring is provided with a second protrusion extending along the axial direction of the transmission ring, and the second protrusion is provided with a second inclined surface; When the actuating component drives the moving ring component to rotate around the axis of the developing roller drive head, the first inclined surface moves along the second inclined surface, thereby realizing the movement of the transmission ring along the axis of the developing roller drive head, and thus pushing the clutch component to move.

[0014] As can be seen from the above scheme, the rotational motion of the moving ring is converted into the axial motion of the transmission ring through the above arrangement, thereby realizing the separation and engagement of the first meshing part and the second meshing part.

[0015] A further option is to provide a third protrusion extending along the axial direction of the transmission ring; The processing box also includes a cover that fits over the outside of the separating gear assembly. The cover has a first insertion hole, and a third protrusion is inserted into the first insertion hole, so that the transmission ring can move along its axial direction.

[0016] As can be seen from the above scheme, through the above settings, the cooperation between the third protrusion and the first insertion hole plays a limiting and guiding role, so that the transmission ring can only move back and forth along its axial direction, but cannot rotate around its axis.

[0017] A further embodiment is that the moving ring component is provided with a lug extending radially along the moving ring component, and the lug is provided with a first movable mating part; The actuating component is provided with a rotation center, a second movable mating part, and a force-receiving part. The second movable mating part and the force-receiving part are respectively located on both sides of the rotation center. The second movable mating part is movably connected to the first movable mating part, so that the actuating component can drive the rotating ring component to rotate.

[0018] As can be seen from the above scheme, the rotation of the actuating component drives the rotation of the moving ring component through the above settings, resulting in a simple structure and convenient operation.

[0019] A further option is that the actuating element is provided with a first retaining pin extending along its axial direction; The cover is provided with a second retaining pin extending along its axial direction; A second elastic element is connected between the first fixing pin and the first fixing pin, so that the actuating element can rotate back to its initial position after the external force disappears.

[0020] As can be seen from the above scheme, with the above settings, when the external force acting on the actuating component disappears, the second elastic element drives the actuating component to automatically reset to the initial position, ensuring that the processing box quickly switches back to the working state.

[0021] A further option is that the clutch component is provided with a second insertion hole extending along the axial direction of the clutch component; The developing roller drive gear is provided with a receiving groove, and a fourth protrusion extending along its axial direction is provided in the receiving groove. The fourth protrusion is inserted into the second insertion hole, so that the clutch can drive the developing roller drive gear to rotate.

[0022] As can be seen from the above scheme, through the above arrangement, the fourth protrusion cooperates with the second insertion hole, causing the developing roller drive gear to rotate with the clutch, thereby transmitting power to the developing roller driven gear and realizing the rotation of the developing roller.

[0023] A further embodiment includes a photosensitive assembly connected to the developing assembly; the photosensitive assembly includes a photosensitive drum and a photosensitive drum drive head, the photosensitive drum drive head being disposed at the end of the photosensitive drum, and the photosensitive drum drive head and the developing roller drive head being independently driven to rotate by two power sources.

[0024] As can be seen from the above scheme, with the above settings, in the cleaning state, the developing roller stops rotating, and a power source of the printer independently drives the photosensitive drum drive head to rotate, thereby driving the photosensitive drum to rotate, which facilitates the cleaning operation. Attached Figure Description

[0025] Figure 1 This is a structural diagram of an embodiment of the present invention.

[0026] Figure 2 This is an exploded view of an embodiment of the present invention.

[0027] Figure 3 This is a structural diagram of an embodiment of the present invention with the first end cap omitted and the clutch assembly in an engaged state.

[0028] Figure 4 This is a side view of an embodiment of the present invention with the first end cap omitted and the clutch assembly in an engaged state.

[0029] Figure 5 yes Figure 4 Sectional view at point AA.

[0030] Figure 6 This is a structural diagram of an embodiment of the present invention with the first end cap omitted and the clutch assembly in a disengaged state.

[0031] Figure 7This is a side view of the clutch assembly in the disengaged state according to an embodiment of the present invention.

[0032] Figure 8 yes Figure 7 Sectional view at point BB.

[0033] Figure 9 This is a structural diagram of the toggle member in an embodiment of the present invention.

[0034] Figure 10 This is a structural diagram of the cover in an embodiment of the present invention.

[0035] Figure 11 This is a structural diagram of the moving ring component in an embodiment of the present invention.

[0036] Figure 12 This is a structural diagram of the developing roller drive head and clutch assembly in an embodiment of the present invention.

[0037] Figure 13 This is an exploded view of the developing roller drive head and clutch assembly from a first perspective in an embodiment of the present invention.

[0038] Figure 14 This is an exploded view of the developing roller drive head and clutch assembly from a second perspective in an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures: 1-Developing assembly, 11-Developing roller, 12-Developing roller driven gear, 13-Developing roller drive head, 130-Drive unit, 131-Connecting rod, 132-Second meshing part, 14-Clutch assembly, 141-Moving ring, 1411-First center ring, 14111-Second center hole, 1412-Ear seat, 14121-First movable mating part, 1413-Boss part, 1414-First protrusion, 14141-First inclined surface, 142-Developing roller drive gear, 1421-Receiving groove, 1422-Fourth protrusion, 1423-First gear part, 1424-Second gear part, 143-Transmission ring, 1431-Third center hole, 1432 - Second protrusion, 14321- Second inclined surface, 1433- Third protrusion, 1434- Groove, 144- Clutch, 1441- First central hole, 1442- First meshing part, 1443- Second insertion hole, 145- First elastic element, 15- Actuating element, 151- Rotation center, 152- Second movable mating part, 153- Force-bearing part, 154- First fixing pin, 155- Elastic arm, 16- Protective cover, 161- Fourth central hole, 162- First insertion hole, 163- Second fixing pin, 164- Mounting post, 165- Clearance hole, 166- Circular part, 167- First ear, 168- Second ear, 17- Powder feeding roller driven gear; 2-Photosensitive component, 21-Photosensitive drum, 22-Photosensitive drum drive head; 3-First end cap; 4-Second end cap; 5-Slider.

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0041] See Figures 1 to 3 This embodiment provides a clutch-driven processing box, including a developing assembly 1, a photosensitive assembly 2, a first end cap 3, and a second end cap 4. The developing assembly 1 and the photosensitive assembly 2 are either fixedly connected or detachably connected, which is not limited here. The first end cap 3 is connected to the first ends of the developing assembly 1 and the photosensitive assembly 2, respectively, and the second end cap 4 is connected to the second ends of the developing assembly 1 and the photosensitive assembly 2, respectively.

[0042] The developing assembly 1 includes a toner hopper, a toner delivery roller, a toner discharge blade, and a developing roller 11. The toner hopper is used to store toner. The toner delivery roller is disposed inside the toner hopper and is connected to the developing roller 11 to deliver the toner from the toner hopper to the developing roller 11. The toner discharge blade is disposed on one side of the developing roller 11.

[0043] The photosensitive assembly 2 includes a waste toner container, a photosensitive drum 21, and a photosensitive drum drive head 22. The photosensitive drum 21 is connected to the developing roller 11 and is used to receive toner transported by the developing roller 11 and to form an image. The waste toner container is used to collect the remaining toner on the surface of the photosensitive drum 21 after the transfer. The photosensitive drum drive head 22 is located at one end of the photosensitive drum 21 and is driven to rotate by the printer's first power source.

[0044] The developing assembly 1 includes: a developing roller 11, a developing roller driven gear 12, a developing roller drive head 13, a clutch assembly 14, a toggle element 15, and a cover 16.

[0045] The driven gear 12 of the developing roller is disposed at the end of the developing roller 11. The driving head 13 of the developing roller is disposed on one side of the driven gear 12 and is connected to the driven gear 12 for transmission. The driving head 13 of the developing roller is driven to rotate by the second power source of the printer.

[0046] The clutch assembly 14 can cut off the power transmission between the developing roller driven gear 12 and the developing roller drive head 13, and can restore the cut-off power transmission between the developing roller driven gear 12 and the developing roller drive head 13.

[0047] The cover 16 is disposed inside the first end cover 3 and covers the outside of the clutch assembly 14. One end of the developing roller drive head 13 passes through the cover 16 and the first end cover 3 and is exposed to the outside.

[0048] The actuating element 15 is movably connected to the cover 16. The actuating element 15 protrudes at least partially from the first end cover 3 and is used to connect with the slider 5 of the printer. The slider 5 can move along a straight line or along an arc to drive the actuating element 15 to rotate around its rotation center, thereby triggering the clutch assembly 14 to perform the clutch function.

[0049] Combination Figures 2 to 8 , Figures 12 to 14 The clutch assembly 14 includes: a moving ring 141, a developing roller drive gear 142, and a separation gear assembly.

[0050] The developing roller drive head 13 is provided with a drive section 130, a connecting rod 131, and a second engagement section 132. The drive section 130 is used to connect to a second power source of the printer; the connecting rod 131 is connected to one side of the drive section 130 and extends along the axial direction of the developing roller drive head 13; the second engagement section 132 is provided on the side of the drive section 130 facing the connecting rod 131, and the second engagement section 132 is provided on the outer periphery of the connecting rod 131 and extends axially.

[0051] The rotating ring 141 is disposed inside the cover 16 and sleeved on the outside of the connecting rod 131. A portion of the rotating ring 141 protrudes outside the cover 16 for connection with the actuating member 15. The rotating ring 141 can rotate around the axis of the connecting rod 131 under the action of the actuating member 15.

[0052] The developing roller drive gear 142 is sleeved on the outside of the connecting rod 131. A receiving groove 1421 is provided inside the developing roller drive gear 142, and a coaxial first gear portion 1423 and a second gear portion 1424 are provided on the outside of the developing roller drive gear 142. The first gear portion 1423 meshes with the developing roller driven gear 12, and the second gear portion 144 meshes with the powder feeding roller driven gear 17 at the end of the powder feeding roller. When the developing roller drive gear 142 rotates, it can simultaneously drive the developing roller 11 and the powder feeding roller to rotate.

[0053] The separating gear assembly is sleeved on the outside of the developing roller drive head 13 and disposed within the receiving groove 1421. The separating gear assembly includes a transmission ring 143, a clutch element 144, and a first elastic element 145.

[0054] Both the transmission ring 143 and the clutch 144 are sleeved on the outside of the connecting rod 131, with the transmission ring 143 positioned between the moving ring 141 and the clutch 144. One side of the transmission ring 143 abuts against the clutch 144. A first elastic element 145 elastically abuts against the bottom of the receiving groove 1421 between the clutch 144 and the groove. The first elastic element 145 is preferably a spring.

[0055] The clutch 144 is provided with a first central hole 1441, a first engaging portion 1442, and four second insertion holes 1443. The first engaging portion 1442 is disposed on the outer periphery of the first central hole 1441. The first engaging portion 1442 extends axially along the clutch 144 towards the side where the transmission ring 143 is located. The first engaging portion 1442 is disposed inside the transmission ring 143 and can pass through the transmission ring 143 and the moving ring 141. The four second insertion holes 1443 are arranged circumferentially along the first central hole 1441 on the outer side of the first engaging portion 1442, and the second insertion holes 1443 are axially penetrating the clutch 144.

[0056] The separation gear assembly can reciprocate along the axis of the developing roller drive head 13 under the action of the moving ring 141 and the first elastic member 145, so that the first meshing part 1442 engages or disengages with the second meshing part 132.

[0057] When the cartridge needs to stop working, the separation gear assembly moves away from the second engagement portion 132 along the axis of the developing roller drive head 13 to compress the first elastic element 145, causing the first engagement portion 1442 to separate from the second engagement portion 132. At this time, even if the printer's second power source is connected to the developing roller drive head 13 and drives the developing roller drive head 13 to rotate, the rotational force will not be transmitted to the clutch element 144 and the developing roller drive gear 142, nor will it be transmitted to the developing roller driven gear 12; that is, the developing roller 11 will not rotate.

[0058] When the processing cartridge needs to continue operating, the clutch 144 moves along the axis of the developing roller drive head 13 towards the second engagement part 132 under the elastic force of the first elastic member 145, so that the first engagement part 1442 and the second engagement part 132 engage again. At this time, the printer's second power source is connected to the developing roller drive head 13 and drives the developing roller drive head 13 to rotate. This rotational force is transmitted through the clutch 144 to the developing roller drive gear 142, and then to the developing roller driven gear 12, so as to drive the developing roller 11 to rotate.

[0059] See Figure 11 The moving ring 141 is provided with a first central ring 1411, an ear seat 1412, three boss portions 1413, and three first protrusions 1414. A second central hole 14111 extending axially is formed within the first central ring 1411. The three boss portions 1413 are arranged at intervals circumferentially around the first central ring 1411, and each boss portion 1413 protrudes radially from the outer peripheral wall of the first central ring 1411. Each boss portion 1413 is provided with a first protrusion 1414 extending axially along the moving ring 1411. A first inclined surface 14141 is provided on one side of the first protrusion 1414, extending obliquely from one edge of the boss portion 1413 towards the top wall of the first protrusion 1414.

[0060] Ear seat 1412 is disposed on one of the boss portions 1413 and extends radially along the first central ring 1411. Ear seat 1412 is provided with a first movable mating portion 14121. The first movable mating portion 14121 is an elongated hole or a pin, and in this embodiment, an elongated hole is preferred. The length direction of the elongated hole extends radially along the moving ring 141.

[0061] See Figure 13 and Figure 14 and combined Figure 3 and Figure 11 The transmission ring 143 is provided with a third central hole 1431, three second protrusions 1432, and three third protrusions 1433. The three second protrusions 1432 are arranged at intervals along the circumference of the transmission ring 143, and the second protrusions 1432 extend axially along the transmission ring 143. In the circumferential direction, a groove 1434 for avoiding the boss portion 1413 is provided between two adjacent second protrusions 1432. A second inclined surface 14321 is provided on one side of the second protrusion 1432, and the second inclined surface 14321 extends obliquely from one side of the groove 1434 toward the top wall of the second protrusion 1432.

[0062] Three third protrusions 1433 are respectively disposed on the second protrusion 1432. The third protrusions 1433 extend along the axial direction of the transmission ring 143, and the extension length of the third protrusions 1433 is greater than the extension length of the second protrusions 1432.

[0063] When the actuating member 15 drives the moving ring member 141 to rotate around the axis of the developing roller drive head 13, the first inclined surface 14141 moves along the second inclined surface 14321, thereby realizing that the transmission ring 143 moves along the axis of the developing roller drive head 13 towards the side where the clutch member 144 is located, thereby pushing the first engaging part 1442 of the clutch member 144 to separate from the second engaging part 132.

[0064] See Figure 10 and combined Figure 3 and Figure 13 The cover 16 is provided with a circular portion 166, a first ear portion 167 and a second ear portion 168, which are respectively connected to the two sides of the circular portion 166. The first ear portion 167 and the second ear portion 168 are fixedly connected to the first end of the developing assembly 1 through a connector.

[0065] The circular portion 166 has a fourth central hole 161, a clearance hole 165, and three first insertion holes 162. The fourth central hole 161 extends axially to allow clearance from the developing roller drive head 13. The clearance hole 165 is located on one side of the circular portion 166 and extends radially along the fourth central hole 161 to allow the lug 1412 of the moving ring 141 to pass through. The three first insertion holes 162 are arranged circumferentially around the fourth central hole 161 and extend axially along the fourth central hole 161. The three first insertion holes 162 correspond one-to-one with three third protrusions 1433. The third protrusions 1433 are inserted into the first insertion holes 162. The third protrusions 1433 can move along the extending direction of the first insertion holes 162 to ensure that the drive ring 143 only moves axially and does not rotate.

[0066] The second ear portion 168 is provided with an axially extending mounting post 164 and a second fixing pin 163.

[0067] See Figures 9 to 11 and combined Figure 4 The actuating member 15 is provided with a rotation center 151, a second movable mating part 152, and an elastic arm 155. The rotation center 151 is preferably a fifth center hole for movably connecting with the mounting post 164.

[0068] The second movable mating part 152 and the elastic arm 155 are respectively disposed on both sides of the rotation center 151. The second movable mating part 152 is movably connected to the first movable mating part 14121, which is an elongated hole or a pin. In this embodiment, it is preferably a pin inserted into the first movable mating part 14121 of the moving ring 141. The pin extends axially along the fifth central hole, and the cross-section of the pin is circular. The pin can slide within the first movable mating part 14121. When the actuating member 15 rotates around the rotation center 151, the pin drives the moving ring 141 to rotate around the axis of the developing roller drive head 13.

[0069] One end of the elastic arm 155 is fixedly connected to the actuating member 15, and the free end of the elastic arm 155 extends outward in an arc or at an angle. The free end of the elastic arm 155 is provided with a force-receiving part 153 for contacting the slider 5 of the printer. The distance from the force-receiving part 153 to the rotation center 151 of the actuating member 15 is greater than the distance from the second movable mating part 152 to the rotation center 151 of the actuating member 15, thus achieving a force-saving effect by utilizing the lever principle.

[0070] When the printer slider 5 applies a rightward force to the force-receiving part 153, the actuating member 15 rotates counterclockwise around the rotation center 151, thereby driving the moving ring member 141 to rotate clockwise around the axis of the developing roller drive head 13, so as to push the clutch member 144 to move axially, compress the first elastic member 145, and cause the first engaging part 1442 to separate from the second engaging part 132.

[0071] After the rightward force applied by the printer slider 5 to the force-bearing part 153 disappears, to ensure that the actuating member 15 can automatically rotate back to its initial position, which is the position of the actuating member 15 when the first engaging part 1442 and the second engaging part 132 are engaged and connected, this embodiment preferably provides a second elastic member between the cover 16 and the actuating member 15. Specifically: The actuating member 15 is provided with a first fixing pin 154 extending along its axial direction. The first fixing pin 154 is located to the right of the rotation center 151 and above the force-receiving part 153.

[0072] The cover 16 is provided with a second fixing pin 163 extending along its axial direction, and the second fixing pin 163 is located on the front side of the toggle member 15 when it rotates counterclockwise.

[0073] The two ends of the second elastic element are connected to the first fixing pin 154 and the first fixing pin 154 respectively, so that the actuating member 15 can rotate back to the initial position after the external force acting on the force-bearing part 153 disappears. The second elastic element is preferably a spring.

[0074] In summary, this invention, through the above-described configuration, ensures that when the processing cartridge enters the cleaning state, the clutch assembly cuts off the power transmission path between the developing roller driven gear and the developing roller drive head, preventing the developing roller drive head from driving the developing roller to rotate. Simultaneously, a power source within the printer drives the photosensitive drum to rotate continuously, transferring residual waste toner from the surface of the photosensitive drum to the waste toner container. During the cleaning process, the developing roller remains stationary, which avoids print quality problems such as deterioration of toner's electrical properties and reduced fluidity due to prolonged friction with the developing roller. It also significantly reduces mechanical wear on adjacent components such as the developing roller, toner blade, and toner supply roller, and reduces abnormal toner loss. When the processing cartridge switches to the printing state, the clutch assembly restores the power transmission between the developing roller driven gear and the developing roller drive head, and another power source in the printer drives the developing roller to rotate again, restoring the toner supply and developing process to normal, ensuring printing continuity and stability. In cleaning mode, this invention can accurately and reliably cut off the power input to the developing assembly, thereby avoiding the drawbacks of heat accumulation, wear and toner performance degradation caused by the idling of the developing roller, thus effectively improving print quality and extending the service life of the processing cartridge.

[0075] Finally, it should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A clutch-driven processing cartridge, comprising a developing assembly, characterized in that, The developing component includes: A developing roller, wherein a developing roller driven gear is provided at the end of the developing roller; A developing roller drive head is disposed on one side of the developing roller driven gear and is connected to the developing roller driven gear in a driving connection. A clutch assembly that can disconnect the power transmission between the driven gear of the developing roller and the driving head of the developing roller, and can restore the disconnected power transmission between the driven gear of the developing roller and the driving head of the developing roller. An actuating element that can trigger the clutch assembly to perform its clutch function.

2. The clutch-driven processing box according to claim 1, characterized in that: The clutch assembly includes: A rotating ring is sleeved on the outside of the developing roller drive head and can rotate around the axis of the developing roller drive head under the action of the actuating member. A developing roller drive gear is sleeved on the outside of the developing roller drive head and meshes with the developing roller driven gear. A separation gear assembly is sleeved on the outside of the developing roller drive head and disposed inside the developing roller drive gear. The separation gear assembly is provided with a first meshing part, and the developing roller drive head is provided with a second meshing part. The separation gear assembly can move along the axis of the developing roller drive head, so that the first meshing part engages or disengages with the second meshing part.

3. The clutch-driven processing box according to claim 2, characterized in that: When the processing cartridge needs to stop working, the separation gear assembly moves away from the second engagement portion along the axis of the developing roller drive head, so that the first engagement portion separates from the second engagement portion.

4. The clutch-driven processing box according to claim 2, characterized in that: The separating gear assembly includes a transmission ring, a clutch, and a first elastic element. The transmission ring and the clutch are both sleeved on the outside of the developing roller drive head, and the transmission ring is disposed between the moving ring and the clutch. The first elastic element elastically abuts against the side of the clutch facing away from the transmission ring. The first meshing part is disposed on the clutch and can extend through the transmission ring to the second meshing part. When the processing box needs to continue working, the clutch moves along the axis of the developing roller drive head toward the second engagement part under the action of the first elastic member, so that the first engagement part and the second engagement part engage again.

5. The clutch-driven processing box according to claim 4, characterized in that: The moving ring component is provided with a first protrusion extending along the axial direction of the moving ring component, and the first protrusion is provided with a first inclined surface; The transmission ring is provided with a second protrusion extending along the axial direction of the transmission ring, and the second protrusion is provided with a second inclined surface; When the actuating member drives the moving ring member to rotate around the axis of the developing roller drive head, the first inclined surface moves along the second inclined surface, thereby realizing the movement of the transmission ring along the axis of the developing roller drive head, and thus pushing the clutch member to move.

6. The clutch-driven processing box according to claim 4, characterized in that: The transmission ring is provided with a third protrusion extending along the axial direction of the transmission ring; The processing box also includes a cover that covers the outside of the separating gear assembly. The cover has a first insertion hole, and the third protrusion is inserted into the first insertion hole, so that the transmission ring can move along its axial direction.

7. The clutch-driven processing box according to claim 4, characterized in that: The moving ring component is provided with an ear seat extending radially along the moving ring component, and the ear seat is provided with a first movable mating part; The actuating component is provided with a rotation center, a second movable mating part, and a force-receiving part. The second movable mating part and the force-receiving part are respectively located on both sides of the rotation center. The second movable mating part is movably connected to the first movable mating part, so that the actuating component can drive the rotating ring component to rotate.

8. The clutch-driven processing box according to claim 6, characterized in that: The actuating element is provided with a first fixing pin extending along its axial direction. The cover is provided with a second fixing pin extending along its axial direction; A second elastic element is connected between the first fixing pin and the first fixing pin, so that the actuating element can rotate back to its initial position after the external force disappears.

9. The clutch-driven processing box according to claim 4, characterized in that: The clutch component is provided with a second insertion hole extending along the axial direction of the clutch component; The developing roller drive gear is provided with a receiving groove, and a fourth protrusion extending along its axial direction is provided in the receiving groove. The fourth protrusion is inserted into a second insertion hole, so that the clutch can drive the developing roller drive gear to rotate.

10. The clutch-driven processing box according to any one of claims 1 to 9, characterized in that: The processing box also includes a photosensitive component connected to the developing component; The photosensitive assembly includes a photosensitive drum and a photosensitive drum drive head. The photosensitive drum drive head is disposed at the end of the photosensitive drum. The photosensitive drum drive head and the developing roller drive head are independently driven to rotate by two power sources.

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