Developing cartridge and drum cartridge

Abstract

The utility model provides a take and show the processing box of developing box and have this developing box, developing box is detachably installed to imaging equipment and includes developing casing and rotatable setting developing roller in developing casing, and developing roller is used for developing agent who is accommodated by developing casing is transported to set in the photosensitive drum of drum box, developing box still includes setting in developing casing's electric connection subassembly, and electric connection subassembly includes the electric power receiving subassembly with first electric power sub - receiving component and second electric power sub - receiving component of mutual electric connection, in the state of developing box is installed to imaging equipment, first electric power sub - receiving component forms electric connection with imaging equipment, or, second electric power sub - receiving component forms electric connection with drum box, in such setting case, a model developing box or same developing box can be installed to different model imaging equipment, and can form electric connection with imaging equipment, will not influence the normal work of imaging equipment, has strengthened the versatility of developing box.

Description

Technical Field

[0001] This utility model relates to the field of electrophotographic imaging technology, and in particular to a developing box and drum box that can be detachably installed into an electrophotographic imaging device. Background Technology

[0002] The developing cartridge can be detachably installed into an electrophotographic imaging device. When the imaging device performs an imaging operation, the developing cartridge needs to form an electrical connection with the imaging device so that the imaging device can perform imaging. Specifically, the developing cartridge is equipped with an electrical connector, which forms an electrical connection with the imaging device directly or indirectly. In the process of forming an electrical connection between the developing cartridge and the imaging device through the electrical connector, one model of developing cartridge is generally compatible with one model or a specific model of imaging device, and the developing cartridge is not universal. Utility Model Content

[0003] This utility model provides a developing cartridge employing the following technical solution and a processing cartridge having the developing cartridge. This solves at least one of the aforementioned technical problems. The specific technical solution is as follows:

[0004] A developing cartridge is detachably mounted to an imaging device and includes a developing housing and a developing roller rotatably disposed in the developing housing, the developing roller being used to deliver the developer contained in the developing housing to a photosensitive drum disposed in a drum housing;

[0005] The developing cartridge also includes an electrical connection assembly disposed on the developing housing, the electrical connection assembly including a power receiving assembly having a first power electronic receiving assembly and a second power electronic receiving assembly electrically connected to each other;

[0006] When the developing cartridge is installed in the imaging device, the first power electronic receiving component forms an electrical connection with the imaging device, or the second power electronic receiving component forms an electrical connection with the drum cartridge.

[0007] The power receiving component further includes at least one of a second electrical connector and a third electrical connector. The second electrical connector includes a second power receiving part and a second power output part that are electrically connected to each other. The third electrical connector includes a third power receiving part and a third power output part that are electrically connected to each other.

[0008] The developing roller rotates around a first rotation axis parallel to the left and right directions. The direction intersecting the left and right directions is the front and back direction. At least a part of the photosensitive drum is located in front of the developing roller. The left and right directions intersect the front and back directions. The direction intersecting both the left and right directions and the front and back directions is the up and down direction.

[0009] The developing cartridge also includes a powder feeding roller and a powder discharging blade. The powder feeding roller is used to deliver developer to the developing roller, and the powder discharging blade is used to control the thickness of developer on the surface of the developing roller. The second power receiving unit and the third power receiving unit are both used to receive power. The second power output unit is used to form an electrical connection with the developing roller, and the third power output unit is used to form an electrical connection with at least one of the powder discharging blade and the powder feeding roller.

[0010] The second power receiving unit includes a first power receiving unit and a second power receiving unit that are electrically connected to each other; the third power receiving unit includes a third power receiving unit and a fourth power receiving unit that are electrically connected to each other; the first power receiving component includes a first power receiving unit and a third power receiving unit; and the second power receiving component includes a second power receiving unit and a fourth power receiving unit.

[0011] In the vertical direction, the first power receiving unit is located below the second power receiving unit, and the third power receiving unit is located below the fourth power receiving unit.

[0012] The developing roller includes a developing roller shaft and a developing roller layer located radially outside the developing roller shaft. The developing roller layer is used to deliver developer to the photosensitive drum. The powder feeding roller includes a powder feeding roller shaft and a powder feeding roller layer located radially outside the powder feeding roller shaft. The powder feeding roller layer is used to deliver developer to the developing roller layer.

[0013] The second power output section is provided with at least one first electrical contact for electrical connection with the developing roller shaft. The first electrical contact is in close contact with the outside of the developing roller shaft. The developing housing is provided with a first support member extending from the right side of the developing housing toward a direction away from the developing housing. The first support member is used to support at least a portion of the first electrical contact member.

[0014] The third power output unit is provided with a second electrical contact for electrical connection with the powder feeding roller shaft. The second electrical contact is in close contact with the outside of the powder feeding roller shaft. Both the first and second electrical contacts are configured as ribs.

[0015] The developing housing is provided with at least one second mounting member for mounting a first power receiving unit and a third power receiving unit. The first power receiving unit is provided with an opening at the end opposite to the end connected to the second power receiving unit, and the third power receiving unit is provided with an opening at the end opposite to the end connected to the fourth power receiving unit. The first power receiving unit and the third power receiving unit are mounted to the second mounting member in the left-right direction through the openings.

[0016] The developing cartridge includes a chip for storing developing cartridge parameter information and a chip mounting base for mounting the chip. The chip mounting base is fixedly mounted to the developing housing and has a slot for accommodating the chip.

[0017] A drum cartridge is detachably mounted to an imaging device and used to house a developing cartridge. The developing cartridge includes an electrical connection assembly for forming an electrical connection with the imaging device. The electrical connection assembly includes a power receiving assembly having a first power receiving assembly and a second power receiving assembly electrically connected to each other.

[0018] The drum box is provided with a first electrical connector for forming an electrical connection with the imaging device. When the developing box is installed in the imaging device, the first power electronic receiving component forms an electrical connection with the imaging device, or the second power electronic receiving component forms an electrical connection with the first electrical connector.

[0019] The drum housing includes a drum shell and a photosensitive drum rotatably disposed in the drum shell. The surface of the photosensitive drum is used to form an electrostatic latent image. The first electrical connector includes a first power receiving part and a first power output part that are electrically connected to each other. The first power receiving part is used to be electrically connected to the imaging device to receive power, and the first power output part is used to output power to the photosensitive drum at least.

[0020] The photosensitive drum rotates around a second rotation axis parallel to the left and right directions. The direction intersecting the left and right directions is the front and back direction. At least a part of the photosensitive drum is located in front of the developing cartridge. The left and right directions intersect the front and back directions. The direction intersecting both the left and right directions and the front and back directions is the up and down direction.

[0021] The drum housing includes a first part, a second part, a first end cap, and a second end cap. The first part and the second part are arranged opposite each other in the front-back direction, and the first end cap and the second end cap are arranged opposite each other in the left-right direction. The first part and the second part are fixedly connected by the first end cap and the second end cap. The first part is at least used to accommodate the photosensitive drum.

[0022] The second end cap is provided with a first mounting member for mounting the first power output unit. In the left-right direction, the second power receiving component is electrically connected to the first power output unit at the first mounting member, and the first power receiving component is electrically connected to the imaging device on the left side of the first mounting member.

[0023] Along the front-back direction, the distance between the foremost point of the second part and the second rotation axis is 100mm to 110mm.

[0024] The first end cap is provided with a support assembly for supporting the developing cartridge. The support assembly includes a first support plate and a second support plate connected to each other. In the front-back direction, the first support plate is located in front of the second support plate, and the dimension of the first support plate in the left-right direction is larger than the dimension of the second support plate in the left-right direction.

[0025] Compared with the prior art, the processing box and the developing box in the processing box provided by this utility model are provided with an electrical connection component. The electrical connection component includes a power receiving component with a first power electronic receiving component and a second power electronic receiving component that are electrically connected to each other. When the developing box is installed in the imaging device, the first power electronic receiving component forms an electrical connection with the imaging device, or the second power electronic receiving component forms an electrical connection with the drum box / first electrical connector. With this configuration, a developing box of one model or the same developing box can be installed in different models of imaging devices and can form an electrical connection with the imaging device without affecting the normal operation of the imaging device, thus enhancing the versatility of the developing box. Attached Figure Description

[0026] Figure 1 This is a perspective view of the drum box involved in this utility model.

[0027] Figure 2 This is a perspective view of the developing cartridge involved in this utility model.

[0028] Figure 3 This is a perspective view of the second end cap of the drum box involved in this utility model.

[0029] Figure 4 This is a perspective view of the first end cap of the drum box involved in this utility model.

[0030] Figure 5 This is an exploded view of some components of the developing cartridge involved in this utility model.

[0031] Figure 6 and Figure 8 This is a perspective view of some components of the developing cartridge involved in this utility model.

[0032] Figure 7 This is an exploded view of some components of the developing cartridge involved in this utility model. Detailed Implementation

[0033] The processing cartridge is detachably mounted to an electrophotographic imaging device (hereinafter referred to as the "imaging device") and used for imaging. The processing cartridge includes a developing cartridge 10 and a drum cartridge 20 that are coupled together, such as... Figure 1 As shown, the drum housing 20 includes a drum shell 21 and a photosensitive drum 22 rotatably disposed within the drum shell 21. The surface of the photosensitive drum 22 is used to form an electrostatic latent image, such as... Figure 2 As shown, the developing cartridge 10 includes a developing housing 11 and a developing roller 12 rotatably disposed in the developing housing 11. In the processing cartridge, the developing roller 12 is disposed opposite to the photosensitive drum 22. The developing cartridge 10 is used to deliver developer to the drum 20. Specifically, the developing roller 12 is used to deliver the developer contained in the developing housing 11 to the photosensitive drum 22, so that the electrostatic latent image is developed.

[0034] In some embodiments, the developing cartridge 10 is detachably mounted to the drum cartridge 20, and then the whole formed by the developing cartridge 10 and the drum cartridge 20 is detachably mounted to the imaging device.

[0035] In some embodiments, the developing cartridge 10 can be directly and detachably installed into the imaging device.

[0036] like Figure 1 and Figure 2 As shown, the developing roller 12 rotates around the first rotation axis L1, and the photosensitive drum 22 rotates around the second rotation axis L2. The first rotation axis L1 and the second rotation axis L2 are parallel. The direction parallel to the first rotation axis L1 / second rotation axis L2 is the left-right direction, and the arrangement direction of the developing roller 12 and the photosensitive drum 22 is the front-back direction. At least a portion of the photosensitive drum 22 is located in front of the developing cartridge 10 / developing roller 12. The left-right direction intersects the front-back direction, and the direction intersects both the left-right direction and the front-back direction is the up-down direction. In some preferred embodiments, the left-right direction, the front-back direction, and the up-down direction are orthogonal to each other.

[0037] like Figure 1 As shown, the drum housing 21 includes a first part 211, a second part 212, a first end cap 213, and a second end cap 214. The first part 211 and the second part 212 are spaced apart and opposite to each other in the front-back direction, and the first end cap 213 and the second end cap 214 are spaced apart and opposite to each other in the left-right direction. The first part 211 and the second part 212 are fixedly connected by the first end cap 213 and the second end cap 214. The drum housing 20 is used to accommodate the developing cartridge 10. Specifically, the first part 211, the second part 212, the first end cap 213, and the second end cap 214 enclose a mounting cavity 24 for accommodating the developing cartridge 20. In the front-back direction, the first part 211 is located in front of the second part 212. The first part 211 is used to accommodate at least the photosensitive drum 22. In the front-back direction, the distance d between the foremost end 2121 of the second part 212 and the second rotation axis L2 is 100mm to 110mm.

[0038] In some embodiments, the second part 212 is provided with a handle 2122 for the user to grip.

[0039] like Figure 1 , Figure 3 and Figure 4As shown, in the left-right direction, the first end cap 213 is located to the left of the second end cap 214. The first end cap 213 and / or the second end cap 214 are provided with at least one first positioning part 2132. The first positioning part 2132 is used to position the second part 212 to avoid incorrect installation of the second part 212. In the front-back direction, the foremost point 2121 of the second part 212 is located behind the center M of the first positioning part 2132. That is, in the front-back direction, the center M of the first positioning part 2132 is located between the second rotation axis L2 and the foremost point 2121 of the second part 212.

[0040] The first end cap 213 is provided with a support assembly 2131 for supporting the developing cartridge 10. The support assembly 2131 includes a first support plate 2131a and a second support plate 2131b connected to each other. In the front-back direction, the first support plate 2131a is located in front of the second support plate 2131b. In the left-right direction, the size of the first support plate 2131a is different from that of the second support plate 2131b. Further, the size of the first support plate 2131a in the left-right direction is larger than that of the second support plate 2131b in the left-right direction. That is, a notch 2131c is formed between the first support plate 2131a and the second support plate 2131b. The notch 2131c is used to allow components in the imaging device to pass through in order to avoid interference between the components in the imaging device and the drum cartridge 20 / drum housing 21. With this arrangement, the processing cartridge / drum cartridge 20 can be adapted to different models of imaging devices, and the versatility of the processing cartridge / drum cartridge 20 is enhanced.

[0041] The first end cap 213 and / or the second end cap 214 are provided with a second positioning part 2141 for positioning the developing cartridge 10. The second positioning part 2141 can prevent the developing cartridge 10 from being installed incorrectly and can position the drum box 20 in the imaging device. The drum box 20 includes a first electrical connector 23 for forming an electrical connection with the imaging device. The first electrical connector 23 includes a first power receiving part 231 and a first power output part 232 that are electrically connected to each other. The first power receiving part 231 is used to be electrically connected to the imaging device to receive power. The first power output part 232 is used to form an electrical connection with other components of the drum box 20 to transmit power to other components of the drum box 20, such as the photosensitive drum 22. The first power output part 232 can also be used to form an electrical connection with the developing cartridge 10 to transmit power to the developing cartridge 10, so that the developing cartridge 10 forms an electrical connection with the imaging device through the drum box 20 / first electrical connector 23.

[0042] The first power output unit 232 includes a first power sub-output unit 2321 and a second power sub-output unit 2322 that are electrically connected to each other. The first power output unit 232 is configured to be bent, that is, the first power sub-output unit 2321 and the second power sub-output unit 2322 are not located in the same plane. Specifically, the first power sub-output unit 2321 extends along a direction perpendicular to the vertical direction, and the second power output unit 2322 extends along a direction perpendicular to the horizontal direction.

[0043] like Figure 3 As shown, the second end cap 214 is also provided with a first mounting member 2142 for mounting the first electrical connector 23 / first power output unit 232. The first mounting member 2142 includes a first mounting part 2142a and a second mounting part 2142b connected to each other. The first mounting part 2142a extends in a direction perpendicular to the vertical direction and is used to mount / support the first power output unit 2321. The second mounting part 2142b extends in a direction perpendicular to the horizontal direction and is used to mount / support the second power output unit 2322. In the horizontal direction, the second mounting part 2142b is located to the left of the first mounting part 2142a. In other words, in the horizontal direction, the second mounting part 2142b is closer to the first end cap 213 than the first mounting part 2142a.

[0044] The first mounting member 2142 is also provided with at least one clearance portion 2142c for avoiding protrusions provided in the imaging device. The clearance portion 2142c is configured as a groove with an opening facing the first end cover 213. The groove extends through in the vertical direction, and a plurality of clearance portions 2142c are provided distributed in the front-back direction.

[0045] In some embodiments, the first mounting member 2142 / second mounting portion 2142b is further provided with at least one limiting member 2142d. The second mounting portion 2142b has a mounting surface 2142b1 facing the left side / first end cap 213. The limiting member 2142d is configured as a protrusion extending from the mounting surface 2142b1 toward the first end cap 213, and the limiting member 2142d is used to restrict the movement of the second power output portion 2322 in the front-rear direction, so that the second power output portion 2322 is fixed to the second mounting portion 2142b. Further, a mounting groove for mounting the second power output portion 2322 is formed between the two limiting members 2142d in the front-rear direction. The limiting member 2142d can prevent the second power output portion 2322 from detaching from the second mounting portion 2142b, thereby ensuring the stability of the electrical connection between the first electrical connector 23 and the imaging device.

[0046] like Figure 2 and Figure 5As shown, the developing roller 12 includes a developing roller shaft 121 and a developing roller layer 122 located radially outside the developing roller shaft 121. The developing roller layer 122 is used to deliver developer to the photosensitive drum 22.

[0047] Continue as Figure 2 and Figure 5 As shown, the developing cartridge 10 also includes a powder feeding roller 13 and a powder discharging blade 14. In the front-rear direction, at least a portion of the developing roller 12 is located in front of the powder feeding roller 13. The powder feeding roller 13 is rotatably disposed in the developing housing 11. The powder feeding roller 13 rotates about a rotation axis parallel to the first rotation axis L1. The powder feeding roller 13 includes a powder feeding roller shaft 131 and a powder feeding roller layer 132 located radially outside the powder feeding roller shaft 131. The powder feeding roller layer 132 is used to deliver developer to the developing roller 12 / developing roller layer 122. The powder discharging blade 14 is used to control the thickness of the developer on the surface of the developing roller 12 / developing roller layer 122.

[0048] like Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, the developing cartridge 10 also includes an electrical connection component 10a disposed on the developing housing 11. The electrical connection component 10a is used to form an electrical connection with the imaging device. The electrical connection component 10a includes a power receiving component 10a1 and a power output component 10a2 that are electrically connected to each other. The power receiving component 10a1 is used to receive power from the imaging device / drum 20, and the power output component 10a2 is used to output power to the developing roller 12 at least.

[0049] In some embodiments, the electrical connection assembly 10a is fixedly disposed on the developing housing 11.

[0050] The power receiving component 10a1 includes a first power receiving component 10a11 and a second power receiving component 10a12 that are electrically connected to each other. When the developing cartridge 10 is installed in the imaging device, the first power receiving component 10a11 is electrically connected to the imaging device, or the second power receiving component 10a12 is electrically connected to the drum cartridge 20 / first electrical connector 23. In the left-right direction, the second power receiving component 10a12 is electrically connected to the first power output part 232 at the first mounting member 2142, and the first power receiving component 10a11 is electrically connected to the imaging device on the left side of the first mounting member 2142.

[0051] Specifically, the electrical connection assembly 10a includes at least one of a second electrical connector 15 and a third electrical connector 16, both of which are used to form an electrical connection with the imaging device. The second electrical connector 15 includes a second power receiving part 151 and a second power output part 152 that are electrically connected to each other. The third electrical connector 16 includes a third power receiving part 161 and a third power output part 162 that are electrically connected to each other. Both the second power receiving part 151 and the third power receiving part 161 are used to receive power from the first electrical connector 23 of the imaging device / drum box 20. The second power output part 152 is used to form an electrical connection with the developing roller 12 to transmit power to the developing roller 12. The third power output part 162 is used to form an electrical connection with at least one of the powder exiting blade 14 and the powder feeding roller 13 to transmit power to at least one of the powder exiting blade 14 and the powder feeding roller 13.

[0052] The second power receiving unit 151 and the third power receiving unit 161 have the same structure. The second power receiving unit 151 includes a first power sub-receiving unit 1511 and a second power sub-receiving unit 1512 that are electrically connected to each other. The third power receiving unit 161 includes a third power sub-receiving unit 1611 and a fourth power sub-receiving unit 1612 that are electrically connected to each other. Both the first power sub-receiving unit 1511 and the third power sub-receiving unit 1611 are used to directly form an electrical connection with the imaging device. That is, the first power sub-receiving assembly 10a11 includes a first power receiving unit 1511 and a third power sub-receiving unit 1612. The power receiving unit 1611 and the second power receiving assembly 10a12 include a second power receiving unit 1512 and a fourth power receiving unit 1612; the developing cartridge 10 is directly electrically connected to the imaging device through the first power receiving unit 1511 and the third power receiving unit 1611, and the second power receiving unit 1512 and the fourth power receiving unit 1612 are both used to form an electrical connection with the first electrical connector 23 / first power output unit 232 / first power output unit 2321 of the drum cartridge 20, so that the developing cartridge 10 is electrically connected to the imaging device through the drum cartridge 20.

[0053] A first step 1513 is formed between the first power receiving unit 1511 and the second power receiving unit 1512. The first power receiving unit 1511 and the second power receiving unit 1512 are electrically connected through the first step 1513. There is a height difference between the first power receiving unit 1511 and the second power receiving unit 1512 in the vertical direction. Specifically, in the vertical direction, the first power receiving unit 1511 is located below the second power receiving unit 1512. A second step 1613 is formed between the third power receiving unit 1611 and the fourth power receiving unit 1612. There is also a height difference between the third power receiving unit 1611 and the fourth power receiving unit 1612 in the vertical direction. In the vertical direction, the third power receiving unit 1611 is located below the fourth power receiving unit 1612.

[0054] In some specific embodiments, the first power receiving unit 1511, the second power receiving unit 1512, the third power receiving unit 1611 and the fourth power receiving unit 1612 all extend in a direction perpendicular to the vertical direction, and the first step 1513 and the second step 1613 extend in the vertical direction.

[0055] The developing housing 11 is provided with at least one second mounting member 111 for mounting the first power receiver 1511 and the third power receiver 1611. The first power receiver 1511 is provided with an opening at the end opposite to the end connected to the second power receiver 1512, and the third power receiver 1611 is provided with an opening at the end opposite to the end connected to the fourth power receiver 1612. With this arrangement, the first power receiver 1511 and the third power receiver 1611 can be smoothly mounted to the second mounting member 111 in the left-right direction.

[0056] In some embodiments, the developing housing 11 is further provided with a first supported member 112 and a second supported member 113 distributed in a front-rear direction. In the front-rear direction, the first supported member 112 is located in front of the second supported member 113. Both the first supported member 112 and the second supported member 113 are configured as protrusions extending from the right side of the developing housing 11 toward a direction away from the developing housing 11. The first supported member 112 is used to support the second power receiving unit 1512, and the second supported member 113 is used to support the fourth power receiving unit 1612. With this configuration, when the developing cartridge 10 is installed into the drum cassette 20, the first mounting member 2142 can be used to support the first supported member 112 and the second supported member 113, so that the developing cartridge 10 is stably supported in the drum cassette 20. At the same time, it can also ensure that the second power receiving unit 1512 and the fourth power receiving unit 1612 can form a stable electrical connection with the first power output unit 232 / first power output unit 2321.

[0057] In some embodiments, the first supported member 112 and the second supported member 113 are integrally formed.

[0058] The second power output unit 152 is provided with at least one first electrical contact 1521 for electrical connection with the developing roller shaft 121. The first electrical contact 1521 is in close contact with the outside of the developing roller shaft 121. The third power output unit 162 is provided with a second electrical contact 1621 for electrical connection with the powder feeding roller shaft 131. The second electrical contact 1621 is in close contact with the outside of the powder feeding roller shaft 131. Both the first electrical contact 1521 and the second electrical contact 1621 are configured as ribs. When there are two first electrical contacts 1521, the maximum distance between the two first electrical contacts 1521 in the front-back direction is less than or equal to the diameter of the developing roller shaft 121. When there are two second electrical contacts 1621, the maximum distance between the two second electrical contacts 1621 in the front-back direction is less than or equal to the diameter of the powder feeding roller shaft 131.

[0059] In some embodiments, the first supported member 112 is also used to support at least a portion of the second power output section 152. Through the first supported member 112, the first electrical contact 1521 can maintain a stable electrical connection with the developing roller shaft 121, and at the same time, it can prevent the first electrical contact 1521 from deforming.

[0060] In some embodiments, the developing housing 11 is further provided with a third supported member for supporting the second electrical contact 1621, the third supported member having the same structure as the first supported member 112.

[0061] In some embodiments, the second power receiving unit 151 and the third power receiving unit 161 are configured as a whole, or in other words, only one second power receiving unit 151 and the third power receiving unit 161 are configured, and the second power output unit 152 and the third power output unit 162 are simultaneously electrically connected to the whole / second power receiving unit 151 / third power receiving unit 161.

[0062] In some embodiments, when the developing cartridge 10 is only provided with the second electrical connector 15, the powder feeding roller 13 and the powder exiting blade 14 can receive power by being electrically connected to the developing roller 12.

[0063] In some embodiments, when the developing cartridge 10 is only provided with the third electrical connector 16, the developing roller 12 can receive power by being electrically connected to the powder feeding roller 13 and / or the powder exiting blade 14.

[0064] The first electrical connector 23, the second electrical connector 15, and the third electrical connector 16 are all made of conductive material.

[0065] like Figure 8 As shown, the developing cartridge 10 also includes a chip 17 for storing parameter information of the developing cartridge 10 and a chip mounting base 18 for mounting the chip 17. The chip mounting base 18 is fixedly mounted to the developing housing 11, and the chip 17 is detachably mounted to the chip mounting base 18, which facilitates the installation and removal of the chip 17. In some specific embodiments, the chip 17 is mounted to the chip mounting base 18 in a slot installation manner, that is, the chip mounting base 18 is provided with a slot for accommodating the chip 17.

[0066] In some embodiments, the chip mounting base 18 is secured to the developing housing 11 by an inverted snap.

[0067] [Beneficial Effects]

[0068] Compared with the prior art, the developing cartridge 10 and processing cartridge 20 provided by this utility model have the following beneficial effects:

[0069] In a first aspect, the developing cartridge 10 is provided with an electrical connection assembly 10a. The electrical connection assembly 10a includes a power receiving assembly 10a1 for receiving power from the imaging device / drum cartridge 20. The power receiving assembly 10a1 includes a first power receiving assembly 10a11 and a second power receiving assembly 10a12 that are electrically connected to each other. The first power receiving assembly 10a11 is used to form an electrical connection with the imaging device, and the second power receiving assembly 10a12 is used to form an electrical connection with the first electrical connector 23 of the drum cartridge 20. In the left-right direction, the second power receiving assembly 10a12 is connected to the first power receiving assembly 23 of the drum cartridge 20. The mounting component 2142 is electrically connected to the first power output unit 232, and the first power receiving component 10a11 is electrically connected to the imaging device on the left side of the first mounting component 2142. When the processing cartridge is installed in the imaging device, the developing cartridge 10 can be electrically connected to the imaging device directly or through the drum cartridge 20. With this configuration, a developing cartridge 10 of one model or the same developing cartridge 10 can be installed in different models of imaging devices and can be electrically connected to the imaging devices without affecting the normal operation of the imaging devices, thus enhancing the versatility of the developing cartridge 10.

[0070] Secondly, the support assembly 2131 of the drum box 20 includes a first support plate 2131a and a second support plate 2131b connected to each other. In the left-right direction, the dimension of the first support plate 2131a in the left-right direction is larger than that of the second support plate 2131b in the left-right direction. That is, a notch 2131c is formed between the first support plate 2131a and the second support plate 2131b. The notch 2131c is used to allow components in the imaging device to pass through, so as to avoid interference between the components in the imaging device and the drum box 20 / drum shell 21. With this setting, the processing box / drum box 20 can be adapted to different models of imaging devices, and the versatility of the processing box / drum box 20 is enhanced.

[0071] Thirdly, the developing cartridge 10 also includes a chip 17 for storing parameter information of the developing cartridge 10 and a chip mounting base 18 for mounting the chip 17. The chip 17 is detachably mounted to the chip mounting base 18, which makes the installation and removal of the chip 17 simple and quick.

Claims

1. A developing cartridge, detachably mounted to an imaging device and comprising a developing housing and a developing roller rotatably disposed within the developing housing, the developing roller being used to deliver developer contained in the developing housing to a photosensitive drum disposed in a drum housing; Its features are, The developing cartridge also includes an electrical connection assembly disposed on the developing housing, the electrical connection assembly including a power receiving assembly having a first power electronic receiving assembly and a second power electronic receiving assembly electrically connected to each other; When the developing cartridge is installed in the imaging device, the first power electronic receiving component forms an electrical connection with the imaging device, or the second power electronic receiving component forms an electrical connection with the drum cartridge.

2. The developing cartridge according to claim 1, characterized in that, The power receiving component further includes at least one of a second electrical connector and a third electrical connector. The second electrical connector includes a second power receiving part and a second power output part that are electrically connected to each other. The third electrical connector includes a third power receiving part and a third power output part that are electrically connected to each other. The developing roller rotates around a first rotation axis parallel to the left and right directions. The direction intersecting the left and right directions is the front and back direction. At least a part of the photosensitive drum is located in front of the developing roller. The left and right directions intersect the front and back directions. The direction intersecting both the left and right directions and the front and back directions is the up and down direction. The developing cartridge also includes a powder feeding roller and a powder discharging blade. The powder feeding roller is used to deliver developer to the developing roller, and the powder discharging blade is used to control the thickness of developer on the surface of the developing roller. The second power receiving unit and the third power receiving unit are both used to receive power. The second power output unit is used to form an electrical connection with the developing roller, and the third power output unit is used to form an electrical connection with at least one of the powder discharging blade and the powder feeding roller.

3. The developing cartridge according to claim 2, characterized in that, The second power receiving unit includes a first power receiving unit and a second power receiving unit that are electrically connected to each other; the third power receiving unit includes a third power receiving unit and a fourth power receiving unit that are electrically connected to each other; the first power receiving component includes a first power receiving unit and a third power receiving unit; and the second power receiving component includes a second power receiving unit and a fourth power receiving unit. In the vertical direction, the first power receiving unit is located below the second power receiving unit, and the third power receiving unit is located below the fourth power receiving unit.

4. The developing cartridge according to claim 2, characterized in that, The developing roller includes a developing roller shaft and a developing roller layer located radially outside the developing roller shaft. The developing roller layer is used to deliver developer to the photosensitive drum. The powder feeding roller includes a powder feeding roller shaft and a powder feeding roller layer located radially outside the powder feeding roller shaft. The powder feeding roller layer is used to deliver developer to the developing roller layer. The second power output section is provided with at least one first electrical contact for electrical connection with the developing roller shaft. The first electrical contact is in close contact with the outside of the developing roller shaft. The developing housing is provided with a first support member extending from the right side of the developing housing toward a direction away from the developing housing. The first support member is used to support at least a portion of the first electrical contact member. The third power output unit is provided with a second electrical contact for electrical connection with the powder feeding roller shaft. The second electrical contact is in close contact with the outside of the powder feeding roller shaft. Both the first and second electrical contacts are configured as ribs.

5. The developing cartridge according to claim 3, characterized in that, The developing housing is provided with at least one second mounting member for mounting a first power receiving unit and a third power receiving unit. The first power receiving unit is provided with an opening at the end opposite to the end connected to the second power receiving unit, and the third power receiving unit is provided with an opening at the end opposite to the end connected to the fourth power receiving unit. The first power receiving unit and the third power receiving unit are mounted to the second mounting member in the left-right direction through the openings.

6. The developing cartridge according to any one of claims 1 to 5, characterized in that, The developing cartridge includes a chip for storing developing cartridge parameter information and a chip mounting base for mounting the chip. The chip mounting base is fixedly mounted to the developing housing and has a slot for accommodating the chip.

7. A drum box, characterized in that, It can be detachably installed into an imaging device and used to house a developing cartridge, the developing cartridge including an electrical connection assembly for forming an electrical connection with the imaging device, the electrical connection assembly including a power receiving assembly having a first power electronic receiving assembly and a second power electronic receiving assembly electrically connected to each other; The drum box is provided with a first electrical connector for forming an electrical connection with the imaging device. When the developing box is installed in the imaging device, the first power electronic receiving component forms an electrical connection with the imaging device, or the second power electronic receiving component forms an electrical connection with the first electrical connector.

8. The drum box according to claim 7, characterized in that, The drum housing includes a drum shell and a photosensitive drum rotatably disposed in the drum shell. The surface of the photosensitive drum is used to form an electrostatic latent image. The first electrical connector includes a first power receiving part and a first power output part that are electrically connected to each other. The first power receiving part is used to be electrically connected to the imaging device to receive power, and the first power output part is used to output power to the photosensitive drum at least. The photosensitive drum rotates around a second rotation axis parallel to the left and right directions. The direction intersecting the left and right directions is the front and back direction. At least a part of the photosensitive drum is located in front of the developing cartridge. The left and right directions intersect the front and back directions. The direction intersecting both the left and right directions and the front and back directions is the up and down direction. The drum housing includes a first part, a second part, a first end cap, and a second end cap. The first part and the second part are arranged opposite each other in the front-back direction, and the first end cap and the second end cap are arranged opposite each other in the left-right direction. The first part and the second part are fixedly connected by the first end cap and the second end cap. The first part is at least used to accommodate the photosensitive drum. The second end cap is provided with a first mounting member for mounting the first power output unit. In the left-right direction, the second power receiving component is electrically connected to the first power output unit at the first mounting member, and the first power receiving component is electrically connected to the imaging device on the left side of the first mounting member.

9. The drum box according to claim 8, characterized in that, Along the front-back direction, the distance between the foremost point of the second part and the second rotation axis is 100mm to 110mm.

10. The drum box according to claim 8, characterized in that, The first end cap is provided with a support assembly for supporting the developing cartridge. The support assembly includes a first support plate and a second support plate connected to each other. In the front-back direction, the first support plate is located in front of the second support plate, and the dimension of the first support plate in the left-right direction is larger than the dimension of the second support plate in the left-right direction.

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