Developing box and processing box

Abstract

The embodiment of the utility model provides a developing box and a processing box, the developing box is detachably mounted in a photosensitive unit with a first accommodating cavity, and the developing box comprises a shell assembly and a developing roller. The shell assembly comprises a second containing cavity for containing the magnetic developer, and the two opposite ends of the shell assembly in the left-right direction comprise a first end and a second end respectively. The developing roller is rotatably arranged on the shell assembly, the developing roller comprises a magnetic roller shaft extending in the left-right direction and a developing sleeve, the developing sleeve is arranged outside the magnetic roller shaft in a sleeving mode, and at least partial area of the magnetic roller shaft is located in the second containing cavity so that the magnetic developing agent can be attracted to the outer surface of the developing roller under the action of magnetic attraction force. According to the developing box provided by the embodiment of the invention, residual powder in the powder box can be reduced.

Description

Technical Field

[0001] This application relates to the field of image forming technology, and in particular to a developing cartridge and a processing cartridge. Background Technology

[0002] Developing cartridges are widely used in electrophotographic imaging equipment such as laser printers, copiers, and fax machines. In related technologies, developing cartridges are equipped with a toner delivery roller, which receives a higher voltage from the imaging equipment than the developing roller to achieve better toner delivery. However, in these technologies, toner delivery via the roller results in a significant amount of residual toner in the cartridge when it is nearly empty, and some toner also remains inside the roller, leading to toner waste. Utility Model Content

[0003] In view of this, the main objective of the embodiments of this application is to provide a developing cartridge and a processing cartridge that can reduce residual toner in the toner cartridge.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0005] A first aspect of this application provides a developing cartridge, detachably mounted within a photosensitive unit having a first receiving cavity, the developing cartridge comprising:

[0006] A housing assembly, the housing assembly including a second receiving cavity for receiving magnetic developer, the housing assembly having a first end and a second end at opposite ends along the left-right direction;

[0007] A developing roller, rotatably mounted on the housing assembly, the developing roller including a magnetic roller shaft extending in the left-right direction and a developing sleeve, the developing sleeve being sleeved outside the magnetic roller shaft, at least a portion of the magnetic roller shaft being located within the second receiving cavity, so that the magnetic developer is attracted to the outer surface of the developing roller under the action of magnetic attraction.

[0008] A power receiver for receiving the driving force of one of the imaging device and the photosensitive unit, the power receiver being rotatably disposed at the first end and drivenly connected to the developing roller;

[0009] The memory has an electrical contact surface for electrical connection with the imaging device, the electrical contact surface being located at the first end.

[0010] In one embodiment, the developing roller further includes an elastic layer extending along the left-right direction, the elastic layer being sleeved outside the developing sleeve; and / or,

[0011] The electrical contact surface faces upwards or downwards.

[0012] In one embodiment, the magnetic roller is fixedly connected to the developing sleeve so as to rotate synchronously under the drive of the power receiving element; or,

[0013] The magnetic roller is movably connected to the developing sleeve so as to rotate relative to it under the drive of the power receiving unit.

[0014] In one embodiment, the housing assembly includes a third end and a fourth end at opposite ends along the front-rear direction;

[0015] The developing roller is located at the third end; and / or,

[0016] The electrical contact surface is disposed in the region of the housing assembly near the third end along the front-rear direction, and is located below the power receiver; or,

[0017] The electrical contact surface is disposed in the region of the housing assembly near the fourth end along the front-rear direction.

[0018] In one embodiment, the housing assembly includes a third end and a fourth end at opposite ends along the front-rear direction;

[0019] The power receiving unit includes a coupling that is driven and connected to the developing roller. The coupling is used to cooperate with the imaging device. The rotation axis of the coupling and the rotation axis of the developing roller are misaligned, and the rotation axis of the coupling is located on the side of the rotation axis of the developing roller closer to the fourth end.

[0020] In one embodiment, the housing assembly includes a third end and a fourth end at opposite ends along the front-rear direction;

[0021] The power receiving unit includes a power receiving gear that is driven and connected to the developing roller. The power receiving gear is used to cooperate with the photosensitive drum gear of the photosensitive unit. The rotation axis of the power receiving gear is misaligned with the rotation axis of the developing roller, and the rotation axis of the power receiving gear is located on the side of the rotation axis of the developing roller away from the fourth end.

[0022] In one embodiment, the power receiving component is a power receiving gear that is driven and connected to the developing roller. The power receiving gear is used to cooperate with the photosensitive drum gear of the photosensitive unit. The rotation axis of the power receiving gear and the rotation axis of the developing roller are coaxially arranged, and the power receiving component can rotate relative to the developing roller.

[0023] In one embodiment, the developing cartridge further includes a speed-changing assembly and a developing roller gear. The developing roller gear is disposed at one end of the developing roller to drive the developing roller to rotate. The speed-changing assembly includes a first gear and a second gear arranged coaxially. The power receiving unit is drivenly connected to the first gear, and the second gear is drivenly connected to the developing roller gear, so that a power transmission path is formed between the power receiving unit and the developing roller through the first gear, the second gear, and the developing roller gear.

[0024] In one embodiment, along the left-right direction, at least a portion of the electrical contact surface is located on the side of the power receiver opposite to the second end.

[0025] In one embodiment, the developing cartridge further includes a detection element;

[0026] The detection element is movably disposed at one of the first end and the second end; and / or,

[0027] The detection element can rotate, slide, or swing relative to the housing assembly.

[0028] In one embodiment, the developing cartridge further includes a layer thickness adjustment member and an electrode having an electrical contact located at the second end. The layer thickness adjustment member extends along the left-right direction and is located on the outer periphery of the developing roller for adjusting the thickness of the magnetic developer on the outer surface of the developing roller. The electrical contact is electrically connected to at least one of the layer thickness adjustment member and the developing roller.

[0029] A second aspect of this application provides a developing cartridge, detachably mounted within a photosensitive unit having a first receiving cavity, the developing cartridge comprising:

[0030] A housing assembly, the housing assembly including a second receiving cavity for receiving magnetic developer, the housing assembly having a first end and a second end at opposite ends along the left-right direction;

[0031] A developing roller, rotatably mounted on the housing assembly, the developing roller including a magnetic roller shaft extending in the left-right direction and a developing sleeve, the developing sleeve being sleeved outside the magnetic roller shaft, at least a portion of the magnetic roller shaft being located within the second receiving cavity, so that the magnetic developer is attracted to the outer surface of the developing roller under the action of magnetic attraction.

[0032] A detection element, which is movably disposed at one of the first end and the second end.

[0033] In one embodiment, the detection element may rotate, slide, or oscillate relative to the housing assembly; and / or,

[0034] The developing roller also includes an elastic layer extending in the left-right direction, the elastic layer being sleeved on the outside of the developing sleeve.

[0035] In one embodiment, the developing cartridge further includes a power receiver for receiving driving force from one of the imaging device and the photosensitive unit. The power receiver is rotatably disposed at the first end and is drivenly connected to at least one of the developing roller and the detection element.

[0036] In one embodiment, the developing cartridge further includes a layer thickness adjustment member and an electrode having an electrical contact located at the second end. The layer thickness adjustment member extends along the left-right direction and is located on the outer periphery of the developing roller for adjusting the thickness of the magnetic developer on the outer surface of the developing roller. The electrode is electrically connected to at least one of the layer thickness adjustment member and the developing roller.

[0037] In one embodiment, the developing cartridge includes a first receiver and a second receiver that are separated from each other. Both the first receiver and the second receiver can be used to receive the driving force of one of the imaging device and the photosensitive unit. The first receiver is driven to the developing roller, and the second receiver is driven to the detection element.

[0038] A third aspect of this application provides a developing cartridge, detachably mounted within a photosensitive unit having a first receiving cavity, the developing cartridge comprising:

[0039] A housing assembly, the housing assembly including a second receiving cavity for receiving magnetic developer, the housing assembly having a first end and a second end at opposite ends along the left-right direction;

[0040] A developing roller, rotatably mounted on the housing assembly, the developing roller including a magnetic roller shaft extending in the left-right direction and a developing sleeve, the developing sleeve being sleeved outside the magnetic roller shaft, at least a portion of the magnetic roller shaft being located within the second receiving cavity, so that the magnetic developer is attracted to the outer surface of the developing roller under the action of magnetic attraction.

[0041] A power receiver for receiving the driving force of one of the imaging device and the photosensitive unit, the power receiver being rotatably disposed at the first end and drivenly connected to the developing roller;

[0042] A layer thickness adjustment member extends along the left-right direction and is located on the outer periphery of the developing roller to adjust the thickness of the magnetic developer on the outer surface of the developing roller.

[0043] An electrode having an electrical contact located at the second end, the electrical contact being electrically connected to at least one of the layer thickness adjustment member and the developing roller;

[0044] The memory has an electrical contact surface for electrical connection with the imaging device, the electrical contact surface being located at the second end and being further away from the developing roller in the front-rear direction than the electrical contact.

[0045] In one embodiment, the developing roller further includes an elastic layer extending along the left-right direction, the elastic layer being sleeved outside the developing sleeve.

[0046] A fourth aspect of this application provides a processing cartridge including a photosensitive unit having a first receiving cavity and a developing cartridge as described in any one of the preceding claims, the developing cartridge being detachably mounted within the first receiving cavity.

[0047] This application provides a developing cartridge and a processing cartridge. The developing cartridge is detachably installed within a photosensitive unit having a first receiving cavity. The developing cartridge includes a housing assembly and a developing roller. The housing assembly includes a second receiving cavity for receiving magnetic developer, and the housing assembly has a first end and a second end at opposite ends along the left-right direction. The developing roller is rotatably mounted on the housing assembly and includes a magnetic roller shaft extending along the left-right direction and a developing sleeve. The developing sleeve is sleeved outside the magnetic roller shaft, and at least a portion of the magnetic roller shaft is located within the second receiving cavity, so that the magnetic developer is attracted to the outer surface of the developing roller under magnetic attraction. Therefore, by providing a magnetic roller shaft, the magnetic developer can be effectively attracted to the outer surface of the developing roller, improving the utilization rate of the magnetic developer in the toner cartridge, thereby reducing the residual toner content in the toner cartridge and saving costs. Simultaneously, since the magnetic developer is attracted using a magnetic roller shaft, there is no need to provide a toner feeder roller, eliminating the problem of residual toner inside the toner feeder roller in the developing cartridge, further reducing the residual toner content in the toner cartridge and further saving costs. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the structure of a processing box according to an embodiment of this application;

[0049] Figure 2 for Figure 1 Schematic diagram of the developing chamber;

[0050] Figure 3 for Figure 1 Schematic diagram of the photosensitive unit;

[0051] Figure 4 This is a schematic diagram of the structure of a developing cartridge according to the first embodiment of this application;

[0052] Figure 5 for Figure 4 Exploded view of the developing chamber;

[0053] Figure 6 This is a schematic diagram of the structure of a developing cartridge according to a second embodiment of this application;

[0054] Figure 7 for Figure 6 A structural schematic diagram of the developing chamber from another perspective;

[0055] Figure 8 for Figure 6 Another structural diagram of the developing chamber;

[0056] Figure 9 for Figure 6 Cross-sectional view of AA in the middle;

[0057] Figure 10 This is a schematic diagram of the structure of a developing cartridge according to a third embodiment of this application;

[0058] Figure 11 This is a schematic diagram of the structure of a developing cartridge according to the fourth embodiment of this application;

[0059] Figure 12 for Figure 11 Exploded view of the developing chamber;

[0060] Figure 13 This is a schematic diagram of the structure of a photosensitive unit according to another embodiment of this application;

[0061] Figure 14 for Figure 13 A schematic diagram of the photosensitive unit from another perspective;

[0062] Figure 15 for Figure 14 Schematic diagram of the structure at point B;

[0063] Figure 16 This is a schematic diagram of the structure of a developing cartridge according to the fifth embodiment of this application.

[0064] Explanation of reference numerals in the attached figures

[0065] 10. Developing cartridge; 110. Housing assembly; 110a. First end; 110b. Second end; 110c. Third end; 110d. Fourth end; 120. Developing roller; 121. Magnetic roller shaft; 122. Developing sleeve; 123. Elastic layer; 130. Power receiver; 131. Coupling; 132. Power receiver gear; 140. Memory; 141. Electrical contact surface; 160. Developing roller gear; 170. Detector; 180. Layer thickness adjustment component; 190. Electrode; 20. Photosensitive unit; 210. Photosensitive drum gear; 20a. First receiving cavity. Detailed Implementation

[0066] In this application, the "left-right direction" orientation or positional relationship is based on the appendix. Figure 6 The orientation or positional relationship shown, the "front-back direction" orientation or positional relationship is based on the attached... Figure 7 The orientation or positional relationship shown, the "up and down" orientation or positional relationship is based on the attached... Figure 8 The orientation or positional relationship shown is for illustrative purposes only and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0067] One embodiment of this application provides a developing cartridge 10, which is detachably installed within a photosensitive unit 20 having a first receiving cavity 20a. (See also...) Figure 1 , Figure 3 , Figure 6 and Figure 11 The developing cartridge 10 includes a housing assembly 110, a developing roller 120, a power receiver 130, and a memory 140.

[0068] The housing assembly 110 includes a second receiving cavity for containing magnetic developer, and the housing assembly 110 has a first end 110a and a second end 110b at opposite ends along the left-right direction.

[0069] The developing roller 120 is rotatably mounted on the housing assembly 110. The developing roller 120 includes a magnetic roller shaft 121 extending in the left-right direction and a developing sleeve 122. The developing sleeve 122 is sleeved outside the magnetic roller shaft 121. At least a portion of the magnetic roller shaft 121 is located in the second receiving cavity so that the magnetic developer is attracted to the outer surface of the developing roller 120 under the action of magnetic attraction.

[0070] The power receiver 130 is used to receive the driving force of one of the imaging device and the photosensitive unit 20. The power receiver 130 is rotatably disposed at the first end 110a and is drivenly connected to the developing roller 120.

[0071] The memory 140 has an electrical contact surface 141 for electrical connection with an imaging device, and the electrical contact surface 141 is located at the first end 110a.

[0072] Another embodiment of this application provides a processing cartridge, including a photosensitive unit 20 having a first receiving cavity 20a and a developing cartridge 10 of any embodiment of this application, the developing cartridge 10 being detachably installed in the first receiving cavity 20a.

[0073] Specifically, the imaging device can be any type of imaging device such as a printer, copier, or fax machine.

[0074] The processing cartridge is used to mount onto the imaging device for cooperation with the imaging device. When the imaging device is activated, it transmits driving force to the developing cartridge 10 and the photosensitive unit 20, thereby realizing power transmission.

[0075] The photosensitive unit 20 is enclosed to form a first receiving cavity 20a for the developing cartridge 10 to be inserted into the first receiving cavity 20a, thereby improving the installation stability of the developing cartridge 10.

[0076] The developing sleeve 122 is fitted over the magnetic roller 121, which can adsorb the magnetic developer onto the outer surface of the developing roller 120.

[0077] The power receiver 130 refers to a component used to receive external driving force from the developing cartridge 10 to drive the developing roller 120 to rotate. The imaging device can directly drive the power receiver 130 to rotate, thereby driving the developing roller 120 to rotate. Alternatively, the imaging device can transmit the driving force to the photosensitive unit 20, which in turn drives the power receiver 130 to rotate, thereby driving the developing roller 120 to rotate.

[0078] The memory 140 refers to a component used to store and record information such as the operating status of the developing cartridge 10. For example, the memory 140 includes a chip.

[0079] Electrical contact surface 141 refers to the surface of memory 140 used for electrical connection with imaging equipment; it refers to the contact surface that directly contacts the imaging equipment. Depending on the specific structure of memory 140, the structure of electrical contact surface 141 will also vary.

[0080] For example, the memory 140 is a chip with an electrical contact surface 141. The electrical contact surface 141 of the chip is in direct contact with the electrical connection surface of the imaging device, thereby forming an electrical connection.

[0081] For example, the memory 140 includes a chip and an electrical connector (such as a wire). One end of the electrical connector is electrically connected to the chip, and the other end of the electrical connector is in contact with the electrical connection surface of the imaging device, thereby forming an electrical connection. The end face of the electrical connector that is in direct contact with the electrical connection surface of the imaging device is the electrical contact surface 141.

[0082] The orientation of the electrical contact surface 141 is not limited, as long as it can be electrically connected to the imaging device.

[0083] For example, the electrical contact surface 141 can face upwards or downwards.

[0084] In this embodiment, the developing cartridge 10 is detachably mounted within the photosensitive unit 20 having a first receiving cavity 20a. The developing roller 120 is rotatably mounted on the housing assembly 110. The developing roller 120 includes a magnetic roller shaft 121 extending in a left-right direction and a developing sleeve 122. The developing sleeve 122 is sleeved outside the magnetic roller shaft 121. At least a portion of the magnetic roller shaft 121 is located within the second receiving cavity, allowing the magnetic developer to be attracted to the outer surface of the developing roller 120 under magnetic attraction. The memory 140 has an electrical contact surface 141 for electrical connection with the imaging device. Thus, by providing the magnetic roller shaft 121, the magnetic roller shaft 121 can effectively attract the magnetic developer to the outer surface of the developing roller 120, improving the utilization rate of the magnetic developer in the toner cartridge, thereby reducing the residual toner content in the toner cartridge and saving costs. Meanwhile, since the magnetic developer is adsorbed by the magnetic roller 121, there is no need to set up a powder feeding roller. The developing box 10 will not have the problem of residual toner inside the powder feeding roller, which can further reduce the residual toner content in the powder box and further save costs.

[0085] In one embodiment, please refer to Figure 5 and Figure 9 The developing roller 120 also includes an elastic layer 123 extending in the left-right direction, which is sleeved on the outside of the developing sleeve 122. Thus, on the one hand, the magnetic developer is attracted to the outer surface of the elastic layer 123 under magnetic attraction, resulting in more uniform coating and improved developing effect. On the other hand, it buffers the vibration and impact forces experienced by the developing roller 120 during rotation, extending its service life.

[0086] Specifically, the material type of the elastic layer 123 is not limited, as long as it has the ability to deform elastically.

[0087] Depending on the actual situation, the extension length of the elastic layer 123 in the left-right direction can be the same as or different from the extension length of the developing sleeve 122.

[0088] Along the radial direction of the developing roller 120, from the outer surface of the developing roller 120 to the center of the developing roller 120, the elastic layer 123, the developing sleeve 122 and the magnetic roller shaft 121 are arranged in sequence.

[0089] In one embodiment, please refer to Figure 5 and Figure 9 The magnetic roller shaft 121 is fixedly connected to the developing sleeve 122 so as to rotate synchronously under the drive of the power receiving unit 130. This reduces the energy loss in the intermediate transmission link between the magnetic roller shaft 121 and the developing sleeve 122, thereby improving the energy utilization rate of the imaging equipment.

[0090] In one embodiment, please refer to Figure 5 and Figure 9The magnetic roller 121 is movably connected to the developing sleeve 122 so as to rotate relative to it under the drive of the power receiving member 130. Thus, by allowing the magnetic roller 121 and the developing sleeve 122 to rotate relative to each other, the distribution of the magnetic developer on the outer surface of the developing sleeve 122 can be better controlled, resulting in better developing effect.

[0091] Specifically, the magnetic roller 121 is movably connected to the developing sleeve 122. Driven by the power receiving unit 130, the magnetic roller 121 and the developing sleeve 122 can have different rotation speeds. In other words, the rotation of the magnetic roller 121 and the developing sleeve 122 can be asynchronous.

[0092] In one embodiment, please refer to Figure 7 The housing assembly 110 has a third end 110c and a fourth end 110d at opposite ends along the front-rear direction, with the developing roller 120 located at the third end 110c. This allows for a more compact structure.

[0093] In one embodiment, please refer to Figure 4 , Figure 7 and Figure 8 The housing assembly 110 has a third end 110c and a fourth end 110d at opposite ends along the front-rear direction, and the electrical contact surface 141 is disposed in the area of ​​the housing assembly 110 near the third end 110c along the front-rear direction and is located below the power receiving member 130. This further improves the space utilization of the developing cartridge 10, making the structure more compact.

[0094] In one embodiment, please refer to Figure 7 and Figure 8 The housing assembly 110 has a third end 110c and a fourth end 110d at opposite ends along the front-rear direction, and an electrical contact surface 141 is disposed in the region of the housing assembly 110 near the fourth end 110d along the front-rear direction. This allows for meeting different docking requirements of imaging devices while making the structure more compact.

[0095] In one embodiment, please refer to Figure 2 The housing assembly 110 includes a third end 110c and a fourth end 110d at opposite ends along the front-rear direction.

[0096] The power receiving unit 130 includes a coupling 131 that is driven and connected to the developing roller 120. The coupling 131 is used to cooperate with the imaging equipment. The rotation axis of the coupling 131 and the rotation axis of the developing roller 120 are misaligned, and the rotation axis of the coupling 131 is located on the side of the rotation axis of the developing roller 120 closer to the fourth end 110d. This effectively avoids the problem of component crowding caused by coaxial arrangement, making the structural layout of the developing cartridge 10 more reasonable and the structure more compact.

[0097] Specifically, coupling 131 refers to a component used to receive the driving force of the imaging equipment to drive the developing roller 120 to rotate.

[0098] The coupling 131 can directly drive the developing roller 120 to rotate, or it can indirectly drive the developing roller 120 to rotate through the intermediate transmission component.

[0099] In one embodiment, please refer to Figure 13 , Figure 14 , Figure 15 and Figure 16 The housing assembly 110 includes a third end 110c and a fourth end 110d at opposite ends along the front-rear direction.

[0100] The power receiving unit 130 includes a power receiving gear 132 that is drivenly connected to the developing roller 120. The power receiving gear 132 is used to cooperate with the photosensitive drum gear 210 of the photosensitive unit 20. The rotation axis of the power receiving gear 132 is offset from the rotation axis of the developing roller 120, and the rotation axis of the power receiving gear 132 is located on the side of the rotation axis of the developing roller 120 away from the fourth end 110d. As a result, the structural layout of the developing cartridge 10 is more reasonable and the structure is more compact.

[0101] Specifically, the power receiving gear 132 refers to a component that cooperates with the photosensitive drum gear 210 to receive the driving force of the photosensitive drum gear 210 and thereby drive the developing roller 120 to rotate.

[0102] The power receiving gear 132 can directly drive the developing roller 120 to rotate, or it can indirectly drive the developing roller 120 to rotate through an intermediate transmission component.

[0103] In one embodiment, please refer to Figure 14 , Figure 15 and Figure 16 The power receiver 130 is a power receiving gear 132 that is driven and connected to the developing roller 120. The power receiving gear 132 is used to cooperate with the photosensitive drum gear 210 of the photosensitive unit 20. The rotation axis of the power receiving gear 132 is coaxial with the rotation axis of the developing roller 120, and the power receiver 130 can rotate relative to the developing roller 120. As a result, space can be further saved, making the developing cartridge 10 structure more compact.

[0104] Specifically, the method by which the power receiving gear 132 drives the developing roller 120 to rotate is not limited.

[0105] Exemplarily, the developing cartridge 10 also includes a speed-changing assembly and a developing roller gear 160. The developing roller gear 160 is disposed at one end of the developing roller 120 to drive the developing roller 120 to rotate. The speed-changing assembly includes a first gear and a second gear coaxially arranged. The power receiver 130 is drivenly connected to the first gear, and the second gear is drivenly connected to the developing roller gear 160, so that a force transmission path is formed between the power receiver 130 and the developing roller 120 through the first gear, the second gear, and the developing roller gear 160. Thus, the power receiver 130 indirectly drives the developing roller 120 to rotate through the speed-changing assembly, which can flexibly adjust the rotational speed of the developing roller 120, enabling the developing cartridge 10 to meet the diverse needs of imaging equipment.

[0106] Specifically, the developing roller gear 160 is a gear structure used to drive the developing roller 120 to rotate.

[0107] The first and second gears of the transmission assembly are coaxial and can rotate synchronously. In fact, the first and second gears are relatively fixed.

[0108] The first gear is used to cooperate with the power receiver 130 to receive the driving force transmitted from the power receiver 130, and the second gear is used to cooperate with the developing roller gear 160 to transmit the driving force to the developing roller gear 160.

[0109] The first gear and the power receiver 130 can be directly meshed for transmission. Of course, in some embodiments, other gear structures can be provided between the first gear and the power receiver 130 for indirect meshing transmission. The second gear and the developing roller gear 160 can also be directly meshed for transmission. Of course, in some embodiments, other gear structures can be provided between the second gear and the developing roller gear 160 for indirect meshing transmission.

[0110] Therefore, when the power receiver 130 receives the driving force from the photosensitive unit 20, the driving force can be transmitted along the force transmission path, passing through the first gear, the second gear and the developing roller gear 160 in sequence, and thus to the developing roller 120 to realize the rotation of the developing roller 120.

[0111] Because the first gear and the second gear are coaxially arranged, their angular velocities are the same during force transmission, and their linear velocities can be adjusted according to their sizes. This allows for flexible adjustment of the linear velocity of the developing roller gear 160.

[0112] It should be noted that when the sizes of the first gear and the second gear are different, the linear velocity of the developing roller gear 160 is different from the linear velocity of the photosensitive drum of the photosensitive unit 20.

[0113] In practice, the dimensions of the first gear and / or the second gear can be selected as needed to adjust the linear speed of the developing roller gear 160, thereby enabling the adjustment of the angular velocity of the developing roller gear 160 and the developing roller 120. This ensures that the angular velocity of the developing roller 120 and the angular velocity of the photosensitive drum are within the required set ratio range, thus achieving a better developing effect.

[0114] In one embodiment, please refer to Figure 5 and Figure 6 Along the left-right direction, at least a portion of the electrical contact surface 141 is located on the side of the power receiver 130 opposite to the second end 110b. This allows for better utilization of the internal and external space of the developing cartridge 10, resulting in a more compact overall structure, reduced volume, and improved versatility and adaptability.

[0115] In one embodiment, please refer to Figure 4 , Figure 5 and Figure 10 The developing cartridge 10 also includes a detection element 170. The detection element 170 is movably disposed at one of the first end 110a and the second end 110b. Thus, after the developing cartridge 10 is installed on the imaging device, the imaging device can easily restart counting.

[0116] Specifically, the detection element 170 may be movably disposed at the first end 110a of the housing assembly 110 or at the second end 110b of the housing assembly 110.

[0117] The movement of the detection component 170 relative to the housing assembly 110 is not limited.

[0118] For example, please see Figure 10 The detection element 170 can rotate, slide or swing relative to the housing assembly 110.

[0119] The detection element 170 can be directly connected to the power receiver 130, and the power receiver 130 can directly drive the detection element 170 to move relative to the housing assembly 110.

[0120] The detection element 170 can also be indirectly connected to the power receiver 130. The power receiver 130 drives the intermediate transmission element to rotate, thereby driving the detection element 170 to move relative to the housing assembly 110.

[0121] In one embodiment, please refer to Figure 4 , Figure 5 and Figure 12The developing cartridge 10 also includes a layer thickness adjustment member 180 and an electrode 190 with electrical contacts located at the second end 110b. The layer thickness adjustment member 180 extends in a left-right direction and is located on the outer periphery of the developing roller 120 to adjust the thickness of the magnetic developer on the outer surface of the developing roller 120. The electrical contacts are electrically connected to at least one of the layer thickness adjustment member 180 and the developing roller 120. Thus, by adjusting the thickness of the magnetic developer on the outer surface of the developing roller 120 by the layer thickness adjustment member 180, the problem of poor imaging effect caused by uneven magnetic developer thickness can be reduced.

[0122] Specifically, the layer thickness adjustment component 180 refers to a component used to control the amount of magnetic developer adhering to the outer surface of the developing roller 120, so as to adjust the thickness of the magnetic developer on the outer surface of the developing roller 120.

[0123] The electrical contact can be electrically connected only to the layer thickness adjustment component 180, or only to the developing roller 120, or simultaneously to both the layer thickness adjustment component 180 and the developing roller 120.

[0124] In one specific embodiment, the layer thickness adjustment member 180 is connected to both the electrical contacts and the developing roller 120, so that the electrical contacts are electrically connected to the developing roller 120. That is, the layer thickness adjustment member 180 can both adjust the thickness of the magnetic developer on the outer surface of the developing roller 120 and serve as a conductor for the electrical contacts to be electrically connected to the developing roller 120. This simplifies the structure, making it more compact, and also allows the developing cartridge 10 to achieve better imaging results.

[0125] Another embodiment of this application provides a developing cartridge 10, which is detachably installed within a photosensitive unit 20 having a first receiving cavity 20a. (See also...) Figure 4 , Figure 5 and Figure 10 The developing cartridge 10 includes a housing assembly 110, a developing roller 120, and a detection element 170.

[0126] The housing assembly 110 includes a second receiving cavity for containing magnetic developer, and the housing assembly 110 has a first end 110a and a second end 110b at opposite ends along the left-right direction.

[0127] The developing roller 120 is rotatably mounted on the housing assembly 110. The developing roller 120 includes a magnetic roller shaft 121 extending in the left-right direction and a developing sleeve 122. The developing sleeve 122 is sleeved outside the magnetic roller shaft 121. At least a portion of the magnetic roller shaft 121 is located in the second receiving cavity so that the magnetic developer is attracted to the outer surface of the developing roller 120 under the action of magnetic attraction.

[0128] The detection element 170 is movably disposed at one of the first end 110a and the second end 110b.

[0129] Therefore, on the one hand, the magnetic roller 121 can effectively adsorb the magnetic developer onto the outer surface of the developing roller 120, improving the utilization rate of the magnetic developer in the toner cartridge, thereby reducing the residual toner content in the toner cartridge and saving costs. On the other hand, after the developing cartridge 10 is installed on the imaging equipment, it is convenient for the imaging equipment to restart counting, and at the same time, it is convenient to obtain relevant information such as the working status of the developing cartridge 10.

[0130] Specifically, the detection element 170 may be movably disposed at the first end 110a of the housing assembly 110 or at the second end 110b of the housing assembly 110.

[0131] In one embodiment, please refer to Figure 5 The developing cartridge 10 also includes a power receiver 130, which receives the driving force of one of the imaging device and the photosensitive unit 20. The power receiver 130 is rotatably disposed at a first end 110a and is drivenly connected to at least one of the developing roller 120 and the detection element 170. Thus, by providing the power receiver 130, efficient power transmission can be achieved.

[0132] Specifically, the power receiver 130 may receive only the driving force of the imaging device or only the driving force of the photosensitive unit 20.

[0133] The power receiver 130 can be driven and connected only to the developing roller 120, or only to the detection element 170, or simultaneously to both the developing roller 120 and the detection element 170.

[0134] It is understandable that the power receiving unit 130 can be directly driven to the developing roller 120 or indirectly driven to the developing roller 120.

[0135] The power receiver 130 can be directly driven to the detection unit 170, or indirectly driven to the detection unit 170.

[0136] In one embodiment, the developing cartridge 10 includes a first receiver and a second receiver that are separated from each other. Both the first receiver and the second receiver can be used to receive the driving force of one of the imaging devices and the photosensitive unit 20. The first receiver is driven to the developing roller 120, and the second receiver is driven to the detection element 170. This reduces energy loss and transmission errors during power transmission, making the transmission between the developing roller 120 and the detection element 170 more efficient.

[0137] Specifically, the first receiving component refers to a component used to receive the driving force of one of the imaging devices and the photosensitive unit 20, and to drive the developing roller 120 to rotate.

[0138] The second receiver refers to a component used to receive the driving force of one of the imaging devices and the photosensitive unit 20, and to drive the detection unit 170 to move.

[0139] Another embodiment of this application provides a developing cartridge 10, which is detachably installed in a photosensitive unit 20 having a first receiving cavity 20a. The developing cartridge 10 includes a housing assembly 110, a developing roller 120, a power receiver 130, a layer thickness adjustment member 180, an electrode 190, and a memory 140.

[0140] The housing assembly 110 includes a second receiving cavity for containing magnetic developer, and the housing assembly 110 has a first end 110a and a second end 110b at opposite ends along the left-right direction.

[0141] The developing roller 120 is rotatably mounted on the housing assembly 110. The developing roller 120 includes a magnetic roller shaft 121 extending in the left-right direction and a developing sleeve 122. The developing sleeve 122 is sleeved outside the magnetic roller shaft 121. At least a portion of the magnetic roller shaft 121 is located in the second receiving cavity so that the magnetic developer is attracted to the outer surface of the developing roller 120 under the action of magnetic attraction.

[0142] The power receiver 130 is used to receive the driving force of one of the imaging device and the photosensitive unit 20. The power receiver 130 is rotatably disposed at the first end 110a and is drivenly connected to the developing roller 120.

[0143] The layer thickness adjustment member 180 extends in the left-right direction and is located on the outer periphery of the developing roller 120 to adjust the thickness of the magnetic developer on the outer surface of the developing roller 120.

[0144] Electrode 190 has an electrical contact located at the second end 110b, which is electrically connected to at least one of the layer thickness adjustment member 180 and the developing roller 120.

[0145] The memory 140 has an electrical contact surface 141 for electrical connection with an imaging device. The electrical contact surface 141 is located at the second end 110b and is further away from the developing roller 120 in the front-back direction than the electrical contacts.

[0146] Therefore, on the one hand, the magnetic roller 121 can effectively adsorb the magnetic developer onto the outer surface of the developing roller 120, improving the utilization rate of the magnetic developer in the toner cartridge, thereby reducing the residual toner content in the toner cartridge and saving costs. On the other hand, the electrical connection between the memory 140 and the imaging device via the electrical contact surface 141 allows the user to quickly obtain the usage information of the developing cartridge 10, improving work efficiency.

[0147] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in a specific embodiment," or "exemplary," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0148] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A developing cartridge, detachably mounted within a photosensitive unit having a first receiving cavity, characterized in that, The developing cartridge includes: A housing assembly, the housing assembly including a second receiving cavity for receiving magnetic developer, the housing assembly having a first end and a second end at opposite ends along the left-right direction; A developing roller, rotatably mounted on the housing assembly, the developing roller including a magnetic roller shaft extending in the left-right direction and a developing sleeve, the developing sleeve being sleeved outside the magnetic roller shaft, at least a portion of the magnetic roller shaft being located within the second receiving cavity, so that the magnetic developer is attracted to the outer surface of the developing roller under the action of magnetic attraction. A power receiver for receiving the driving force of one of the imaging device and the photosensitive unit, the power receiver being rotatably disposed at the first end and drivenly connected to the developing roller; The memory has an electrical contact surface for electrical connection with the imaging device, the electrical contact surface being located at the first end.

2. The developing cartridge according to claim 1, characterized in that, The developing roller further includes an elastic layer extending along the left-right direction, the elastic layer being sleeved outside the developing sleeve; and / or, The electrical contact surface faces upwards or downwards.

3. The developing cartridge according to claim 1, characterized in that, The magnetic roller shaft is fixedly connected to the developing sleeve so as to rotate synchronously under the drive of the power receiving unit; or, The magnetic roller is movably connected to the developing sleeve so as to rotate relative to it under the drive of the power receiving unit.

4. The developing cartridge according to claim 1, characterized in that, The housing assembly includes a third end and a fourth end at opposite ends along the front-rear direction; The developing roller is located at the third end; and / or, The electrical contact surface is disposed in the region of the housing assembly near the third end along the front-rear direction, and is located below the power receiver; or, The electrical contact surface is disposed in the region of the housing assembly near the fourth end along the front-rear direction.

5. The developing cartridge according to any one of claims 1-4, characterized in that, The housing assembly includes a third end and a fourth end at opposite ends along the front-rear direction; The power receiving unit includes a coupling that is driven and connected to the developing roller. The coupling is used to cooperate with the imaging device. The rotation axis of the coupling and the rotation axis of the developing roller are misaligned, and the rotation axis of the coupling is located on the side of the rotation axis of the developing roller closer to the fourth end.

6. The developing cartridge according to any one of claims 1-4, characterized in that, The housing assembly includes a third end and a fourth end at opposite ends along the front-rear direction; The power receiving unit includes a power receiving gear that is driven and connected to the developing roller. The power receiving gear is used to cooperate with the photosensitive drum gear of the photosensitive unit. The rotation axis of the power receiving gear is misaligned with the rotation axis of the developing roller, and the rotation axis of the power receiving gear is located on the side of the rotation axis of the developing roller away from the fourth end.

7. The developing cartridge according to any one of claims 1-4, characterized in that, The power receiving component is a power receiving gear that is driven and connected to the developing roller. The power receiving gear is used to cooperate with the photosensitive drum gear of the photosensitive unit. The rotation axis of the power receiving gear and the rotation axis of the developing roller are coaxially arranged, and the power receiving component can rotate relative to the developing roller.

8. The developing cartridge according to claim 7, characterized in that, The developing cartridge further includes a speed-changing assembly and a developing roller gear. The developing roller gear is disposed at one end of the developing roller to drive the developing roller to rotate. The speed-changing assembly includes a first gear and a second gear arranged coaxially. The power receiving unit is driven to the first gear, and the second gear is driven to the developing roller gear, so that a power transmission path is formed between the power receiving unit and the developing roller through the first gear, the second gear, and the developing roller gear.

9. The developing cartridge according to any one of claims 1-4, characterized in that, Along the left-right direction, at least a portion of the electrical contact surface is located on the side of the power receiver opposite to the second end.

10. The developing cartridge according to any one of claims 1-4, characterized in that, The developing cartridge also includes a detection component; The detection element is movably disposed at one of the first end and the second end; and / or, The detection element can rotate, slide, or swing relative to the housing assembly.

11. The developing cartridge according to any one of claims 1-4, characterized in that, The developing cartridge further includes a layer thickness adjustment element and an electrode with an electrical contact located at the second end. The layer thickness adjustment element extends along the left-right direction and is located on the outer periphery of the developing roller for adjusting the thickness of the magnetic developer on the outer surface of the developing roller. The electrical contact is electrically connected to at least one of the layer thickness adjustment element and the developing roller.

12. A developing cartridge, detachably mounted within a photosensitive unit having a first receiving cavity, characterized in that, The developing cartridge includes: A housing assembly, the housing assembly including a second receiving cavity for receiving magnetic developer, the housing assembly having a first end and a second end at opposite ends along the left-right direction; A developing roller, rotatably mounted on the housing assembly, the developing roller including a magnetic roller shaft extending in the left-right direction and a developing sleeve, the developing sleeve being sleeved outside the magnetic roller shaft, at least a portion of the magnetic roller shaft being located within the second receiving cavity, so that the magnetic developer is attracted to the outer surface of the developing roller under the action of magnetic attraction. A detection element, which is movably disposed at one of the first end and the second end.

13. The developing cartridge according to claim 12, characterized in that, The detection element may rotate, slide, or swing relative to the housing assembly; and / or, The developing roller also includes an elastic layer extending in the left-right direction, the elastic layer being sleeved on the outside of the developing sleeve.

14. The developing cartridge according to claim 12 or 13, characterized in that, The developing cartridge further includes a power receiver for receiving driving force from one of the imaging device and the photosensitive unit. The power receiver is rotatably disposed at the first end and is drivenly connected to at least one of the developing roller and the detection element.

15. The developing cartridge according to claim 12 or 13, characterized in that, The developing cartridge further includes a layer thickness adjustment element and an electrode with an electrical contact located at the second end. The layer thickness adjustment element extends along the left-right direction and is located on the outer periphery of the developing roller for adjusting the thickness of the magnetic developer on the outer surface of the developing roller. The electrode is electrically connected to at least one of the layer thickness adjustment element and the developing roller.

16. The developing cartridge according to claim 12 or 13, characterized in that, The developing cartridge includes a first receiver and a second receiver that are separated from each other. Both the first receiver and the second receiver can be used to receive the driving force of one of the imaging device and the photosensitive unit. The first receiver is driven to the developing roller, and the second receiver is driven to the detection element.

17. A developing cartridge, detachably mounted within a photosensitive unit having a first receiving cavity, characterized in that, The developing cartridge includes: A housing assembly, the housing assembly including a second receiving cavity for receiving magnetic developer, the housing assembly having a first end and a second end at opposite ends along the left-right direction; A developing roller, rotatably mounted on the housing assembly, the developing roller including a magnetic roller shaft extending in the left-right direction and a developing sleeve, the developing sleeve being sleeved outside the magnetic roller shaft, at least a portion of the magnetic roller shaft being located within the second receiving cavity, so that the magnetic developer is attracted to the outer surface of the developing roller under the action of magnetic attraction. A power receiver for receiving the driving force of one of the imaging device and the photosensitive unit, the power receiver being rotatably disposed at the first end and drivenly connected to the developing roller; A layer thickness adjustment member extends along the left-right direction and is located on the outer periphery of the developing roller to adjust the thickness of the magnetic developer on the outer surface of the developing roller. An electrode having an electrical contact located at the second end, the electrical contact being electrically connected to at least one of the layer thickness adjustment member and the developing roller; The memory has an electrical contact surface for electrical connection with the imaging device, the electrical contact surface being located at the second end and being further away from the developing roller in the front-rear direction than the electrical contact.

18. The developing cartridge according to claim 17, characterized in that, The developing roller also includes an elastic layer extending in the left-right direction, the elastic layer being sleeved on the outside of the developing sleeve.

19. A processing box, characterized in that, The processing cartridge includes a photosensitive unit having a first receiving cavity and a developing cartridge as described in any one of claims 1-18, the developing cartridge being detachably mounted within the first receiving cavity.

Images