Photosensitive box, processing box and image forming equipment

Abstract

The utility model discloses a photosensitive box, a processing box and image forming equipment, and relates to the technical field of printers. The photosensitive box comprises a shell and a conductive assembly; the shell is provided with a first side and a second side which are arranged oppositely, and the shell is further provided with an assembling groove communicating with the first side and the second side. The conductive assembly is located at the position of the assembling groove and is provided with a first conductive part and a second conductive part which are electrically connected, the first conductive part and the second conductive part are arranged in a staggered mode in the first direction, and the first conductive part is exposed out of the first side and is configured to be in contact electric connection with a developing roller of a developing box in the image forming equipment; the second conductive portion is exposed to the second side and is configured to be in contact electrical connection with a developing contact electrode of a host in the image forming apparatus. According to the photosensitive box provided by the invention, the compatibility of the drum frame and the developing box can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printers, and in particular to a photosensitive cartridge, a process cartridge and an image forming device. BACKGROUND

[0002] A process cartridge is arranged in a device such as a printer. The process cartridge generally comprises a drum frame and a developing cartridge. The developing cartridge comprises a developing roller and other structures. The drum frame is mounted on a main machine. The developing cartridge is mounted on the drum frame. The developing roller in the developing cartridge is electrically connected with a developing contact electrode on the main machine of the printer.

[0003] In the related art, the position of the developing roller of some types of developing cartridges is misaligned with the developing contact electrode on the main machine of the printer, and cannot be adapted to the type of the main machine of the printer. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a photosensitive cartridge, a process cartridge and an image forming device to achieve smooth electrical connection between the developing cartridge and the developing contact electrode of the main machine.

[0005] In a first aspect, the present application provides a photosensitive cartridge, comprising:

[0006] a housing configured with a first side and a second side arranged oppositely, and a mounting groove communicating the first side and the second side being formed on the housing;

[0007] a conductive assembly located at the position of the mounting groove, the conductive assembly being configured with a first conductive part and a second conductive part electrically connected, the first conductive part and the second conductive part being misaligned in a first direction, the first conductive part being exposed to the first side and being configured to be in contact with a developing roller of a developing cartridge in an image forming device, and the second conductive part being exposed to the second side and being configured to be in contact with a developing contact electrode of a main machine in the image forming device.

[0008] In some possible implementation manners, the conductive assembly comprises:

[0009] a connecting seat located at the position of the mounting groove, and a hollow hole being formed on the connecting seat;

[0010] a conductive sheet mounted on the connecting seat, the conductive sheet comprising the first conductive part and the second conductive part, the first conductive part being located on a side of the connecting seat facing the first side, and the second conductive part being embedded in the hollow hole and exposed to the second side.

[0011] In some possible implementation manners, the connecting seat is detachably connected with the housing.

[0012] In some possible embodiments, the connecting seat is provided with a buckle on a side facing the first side, and the buckle is clamped with the shell.

[0013] In some possible embodiments, the connecting seat is an integral structure with the shell.

[0014] In some possible embodiments, the first conductive part is gradually inclined away from the second side from one end close to the second conductive part to one end away from the second conductive part.

[0015] In some possible embodiments, the conductive sheet further comprises a lap joint part connected to one end of the second conductive part away from the first conductive part.

[0016] The connecting seat is further provided with a lap joint groove on a side facing the first side, and the lap joint part is inserted into the lap joint groove.

[0017] In some possible embodiments, the conductive sheet further comprises oppositely arranged first and second limiting parts, and the first and second limiting parts are staggered with the first conductive part.

[0018] One side of the first limiting part away from the second limiting part is opposite to an inner wall of one side of the hollow hole, and one side of the second limiting part away from the first limiting part is opposite to an inner wall of the other side of the hollow hole.

[0019] In some possible embodiments, the connecting seat comprises:

[0020] a connecting seat body;

[0021] a positioning convex part protruding on a side of the connecting seat body facing the first side, and the positioning convex part encloses a positioning groove adapted to the developing roller, and the first conductive part is located in the positioning groove.

[0022] In some possible embodiments, the conductive assembly comprises a connecting seat with electrical conductivity.

[0023] The connecting seat comprises the first conductive part and the second conductive part.

[0024] In a second aspect, the present application provides a process cartridge comprising a developing cartridge and the photosensitive cartridge provided in each of the above embodiments, the developing cartridge is installed in the photosensitive cartridge, and the developing cartridge comprises a developing roller, one end of the developing roller is in surface contact and electrically connected with one side of the first conductive part facing the first side.

[0025] In a third aspect, the present application provides an image forming apparatus comprising the photosensitive cartridge provided in each of the above embodiments.

[0026] The beneficial effects of this application are as follows: The photosensitive cartridge provided by this application has a conductive component located in the assembly slot of the housing, with the first conductive part and the second conductive part of the conductive component being misaligned. For a photosensitive cartridge where the developing roller and the developing contact electrode in the main unit are misaligned, the conductive component can be used to achieve the transfer between the developing roller and the developing contact electrode, making this type of photosensitive cartridge compatible with the main unit and enabling the photosensitive cartridge to be smoothly electrically connected to the main unit. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A three-dimensional structural schematic diagram of the photosensitive cell is shown in some embodiments;

[0029] Figure 2 Another three-dimensional structural schematic diagram of the photosensitive cell is shown in some embodiments;

[0030] Figure 3 It shows Figure 2 A partially enlarged structural diagram of part A in the middle;

[0031] Figure 4 A side view of the conductive components in some embodiments is shown;

[0032] Figure 5 It shows Figure 4 A schematic diagram of the cross-sectional structure along the BB direction;

[0033] Figure 6 A three-dimensional structural schematic diagram of the connector is shown in some embodiments;

[0034] Figure 7 Schematic diagrams of the conductive sheet structure are shown in some embodiments;

[0035] Figure 8 A schematic diagram of the processing box is shown in some embodiments.

[0036] Explanation of key component symbols:

[0037] 1000-Photosensitive Box;

[0038] 100 - Housing; 101 - First side; 102 - Second side; 110 - Assembly slot;

[0039] 200 - conductive assembly; 210 - connecting seat; 211 - connecting seat body; 2111 - hollow hole; 2112 - overlapping groove; 212 - buckle; 213 - positioning protrusion; 214 - positioning groove; 2141 - open end; 2142 - closed end;

[0040] 220 - conductive sheet; 221 - first conductive part; 222 - second conductive part; 2231 - first connecting part; 2232 - second connecting part; 224 - overlapping part; 2251 - first limiting part; 2252 - second limiting part;

[0041] 2000 - developing cartridge;

[0042] M - first direction. DETAILED DESCRIPTION

[0043] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are for the purpose of explanation of the present application, and are not to be understood as a limitation of the present application.

[0044] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0045] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0046] In the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection", "fixed", and the like, should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact or indirectly contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] As shown in Figure 1 and Figure 8 , an embodiment provides a photosensitive cartridge 1000, which can be applied to a process cartridge of an image forming device, and can realize electrical connection between a developing roller in the developing cartridge 2000 and a developing contact electrode in the main machine of the image forming device. The image forming device can be a printer, a copier or a multifunctional device.

[0049] As shown in Figures 1 to 3 and Figure 8 , the photosensitive cartridge 1000 includes a shell 100 and a conductive assembly 200. The shell 100 is configured with a first side 101 and a second side 102 arranged opposite to each other. The shell 100 is also provided with an assembly groove 110 communicating the first side 101 and the second side 102.

[0050] In some embodiments, the first side 101 can be a side of the shell 100 facing the developing roller, and the second side 102 can be a side of the shell 100 away from the developing roller.

[0051] In some embodiments, the conductive assembly 200 can be positioned in the assembly groove 110. In some embodiments, the conductive assembly 200 includes a first conductive part 221 and a second conductive part 222 electrically connected. The first conductive part 221 and the second conductive part 222 can be positioned in a first direction M, which can be perpendicular to the axial direction of the developing roller. The first conductive part 221 can be exposed to the first side 101 of the housing 100, and the first conductive part 221 is configured to be in contact with the developing roller in the developing cartridge 2000. The second conductive part 222 can be exposed to the second side 102 of the housing 100, and the second conductive part 222 is configured to be in contact with the developing contact electrode in the host device. Thus, the conductive assembly 200 can be used to electrically connect the developing roller in the developing cartridge 2000 and the developing contact electrode in the host device, so that the developing cartridge 2000 can be adapted to the host device and electrically connected.

[0052] As shown in FIG. 1, in some embodiments, the conductive assembly 200 can include a connecting seat 210 and a conductive sheet 220. Figures 1 to 3

[0053] The connecting seat 210 can be mounted in the assembly groove 110 and detachably connected to the housing 100. Accordingly, the conductive assembly 200 can be detachably connected to the housing 100. Thus, the conductive assembly 200 can be disassembled as needed. When the replaced developing cartridge 2000 is installed, the developing roller can be opposite to and in contact with the developing contact electrode in the host device, the conductive assembly 200 can be detached from the housing 100. When the replaced developing cartridge 2000 is installed, the developing roller is misaligned with the developing contact electrode in the host device, the conductive assembly 200 can be mounted on the housing 100, so that the first conductive part 221 is in contact with the developing roller, and the second conductive part 222 is in contact with the developing contact electrode. Thus, the conductive assembly 200 can be used to electrically connect the developing roller and the developing contact electrode.

[0054] Accordingly, the photosensitive cartridge 1000 provided by the embodiments of the present application can be adapted to various types of developing cartridges 2000, and can enable the developing roller in different types of developing cartridges 2000 to be successfully electrically connected to the developing contact electrode on the host device, so that the photosensitive cartridge 1000 and the developing cartridge 2000 have higher compatibility.

[0055] In other embodiments, the connecting seat 210 can also be an integral structure with the housing 100, which can reduce the amount of material used and the assembly steps, thereby reducing the production cost of the photosensitive cartridge 1000.

[0056] ​In some embodiments, the connector 210 may include a connector body 211 and a latch 212. The connector body 211 may be plate-shaped. The connector body 211 may be disposed on the second side 102 of the housing 100. The peripheral edge of the connector body 211 may protrude relative to the peripheral side of the mounting groove 110 and abut against the second side 102 of the housing 100.

[0057] In this embodiment, the buckle 212 may protrude from the side of the connector body 211 facing the first side 101. The buckle 212 may pass through the assembly groove 110, and the end of the buckle 212 away from the connector body 211 may extend to the first side 101 of the housing 100 and engage with the first side 101 of the housing 100. Thus, a detachable connection between the connector 210 and the housing 100 can be achieved, facilitating the assembly and disassembly of the conductive component 200. In this embodiment, the buckle 212 and the connector body 211 may be an integral structure, formed by injection molding.

[0058] In other embodiments, the connector 210 may also be detachably connected to the housing 100 by means of screws or other means.

[0059] like Figure 1 , Figures 3 to 6 As shown, the connecting seat 210 also includes a positioning protrusion 213, which protrudes from the connecting seat body 211 on the side facing the first side 101. In some embodiments, the positioning protrusion 213 may be a surrounding plate structure, and a positioning groove 214 may be formed by surrounding the connecting seat body 211 on the side facing the first side 101. In some embodiments, the positioning groove 214 may be a U-shaped groove structure with one side open, and the end of the positioning groove 214 near the opening of the U-shaped groove structure may be referred to as the open end 2141. Correspondingly, the positioning groove 214 is also provided with a closed end 2142 opposite to the open end 2141.

[0060] In the embodiment, the first conductive part 221 may be disposed on the side of the connector body 211 facing the first side 101, and the first conductive part 221 may be accommodated in the positioning groove 214 and disposed near the closed end 2142.

[0061] In this embodiment, the shape of the positioning groove 214 near the closed end 2142 can be adapted to the shape of the developing roller. When the developing roller is inserted into the positioning groove 214, the sidewall of the developing roller can be in contact with or have a small gap with the inner wall of the positioning protrusion 213 near the closed end 2142. Thus, the positioning protrusion 213 can provide a limiting function for the developing roller, reducing the probability of relative misalignment between the developing roller and the first conductive part 221, thereby improving the electrical connection stability between the developing roller and the first conductive part 221, which in turn improves the electrical connection stability between the developing roller and the developing contact electrode.

[0062] In some embodiments, the positioning protrusion 213 can be an integral structure with the connecting seat body 211, that is, the positioning protrusion 213 can be integrally injection molded.

[0063] In some embodiments, the connecting seat body 211 is further provided with a hollow hole 2111, which can be arranged close to the opening end 2141 of the positioning groove 214. The hollow hole 2111 can communicate the first side 101 and the second side 102 of the shell 100.

[0064] As shown in FIGS. 1 and 2, in some embodiments, the conductive sheet 220 can include an integral first conductive part 221 and a second conductive part 222, and the first conductive part 221 is electrically connected with the second conductive part 222. Figure 1 Figures 4 to 7 In some embodiments, the conductive sheet 220 can be a metal sheet with conductive performance. Accordingly, the first conductive part 221 and the second conductive part 222 both have conductive performance, and the electrical connection between the first conductive part 221 and the second conductive part 222 can be achieved.

[0065] In some embodiments, the conductive sheet 220 can be a metal sheet with conductive performance. Accordingly, the first conductive part 221 and the second conductive part 222 both have conductive performance, and the electrical connection between the first conductive part 221 and the second conductive part 222 can be achieved.

[0066] In some embodiments, the conductive sheet 220 can be a metal sheet with conductive performance. Accordingly, the first conductive part 221 and the second conductive part 222 both have conductive performance, and the electrical connection between the first conductive part 221 and the second conductive part 222 can be achieved.

[0067] In some embodiments, the first conductive part 221 and the second conductive part 222 can both have a sheet structure. The first conductive part 221 is arranged on the side of the connecting seat body 211 facing the first side 101, and the first conductive part 221 is accommodated in the positioning groove 214 and arranged close to the closed end 2142. In some embodiments, the first conductive part 221 can be inclined from the end close to the second conductive part 222 to the end away from the second conductive part 222, gradually to the direction away from the connecting seat body 211. That is, the first conductive part 221 is arranged in an inclined manner. When the developing cartridge 2000 is installed in the drum frame 3000, the developing roller can be inserted into the positioning groove 214 and abut against the first conductive part 221. The first conductive part 221 can elastically deform under the extrusion and store corresponding elastic potential energy. Thus, the first conductive part 221 can stably abut against the developing roller, and the electrical connection stability between the first conductive part 221 and the developing roller can be ensured.

[0068] In some embodiments, the second conductive part 222 can be accommodated in the hollow hole 2111 and exposed to the second side 102 of the shell 100 through the hollow hole 2111. In some embodiments, the side surface of the second conductive part 222 facing the second side 102 can be flush with the side surface of the connecting seat body 211 facing the second side 102, which can ensure that the second conductive part 222 and the developing contact electrode are in smooth contact and electrical connection.

[0069] ​In some embodiments, the conductive sheet 220 further comprises a first connecting portion 2231. The first connecting portion 2231 can be connected between the first conductive portion 221 and the second conductive portion 222, and the first connecting portion 2231 is perpendicular to the second conductive portion 222. Accordingly, the conductive sheet 220 as a whole can present a Z-like shape. Accordingly, the first conductive portion 221 and the second conductive portion 222 can be disposed in a staggered manner in a direction perpendicular to the connecting seat body 211, so that the second conductive portion 222 is accommodated in the hollow hole 2111 and exposed outside the second side 102 of the shell 100 through the hollow hole 2111. In some embodiments, the first connecting portion 2231 can be an integral structure with the first conductive portion 221 and the second conductive portion 222.

[0070] In some embodiments, the conductive sheet 220 further comprises a lap portion 224 connected to an end of the second conductive portion 222 away from the first conductive portion 221. The lap portion 224 can be connected to the second conductive portion 222 through a second connecting portion 2232, the second connecting portion 2232 can be opposite to the first connecting portion 2231 in parallel, the lap portion 224 can be located on a side of the second connecting portion 2232 away from the second conductive portion 222, and the lap portion 224 can be parallel to the second conductive portion 222. In embodiments, the lap portion 224 and the second connecting portion 2232 are integral structures with the second conductive portion 222.

[0071] In embodiments, the connecting seat body 211 is provided with a lap slot 2112 on a side thereof facing the first side 101, the lap slot 2112 can be located on a side of the hollow hole 2111 away from the closed end 2142, and the lap slot 2112 is in communication with the hollow hole 2111. In embodiments, the lap portion 224 can be inserted into the lap slot 2112, and the lap portion 224 can be limited on a side of the connecting seat body 211 facing the first side 101. Thus, the stability of the second conductive portion 222 can be improved, and the possibility of shaking of the second conductive portion 222 can be reduced, thereby also improving the electrical connection stability of the second conductive portion 222 and the developing contact electrode.

[0072] In some embodiments, the conductive sheet 220 further comprises a first limiting portion 2251 and a second limiting portion 2252 integral with the second conductive portion 222. The first limiting portion 2251 and the second limiting portion 2252 can each present a sheet-like structure. The first limiting portion 2251 and the second limiting portion 2252 are respectively disposed at positions away from two opposite sides of the second conductive portion 222, and away from the first connecting portion 2231 and the second connecting portion 2232. In addition, the first limiting portion 2251 can be opposite to the second limiting portion 2252 in parallel.

[0073] In some embodiments, the first limiting part 2251 and the second limiting part 2252 are protrudingly arranged on one side of the second conductive part 222 facing the first side 101, and are accommodated in the hollow hole 2111. In some embodiments, the side of the first limiting part 2251 away from the second limiting part 2252 is in contact with or has a small gap with the inner wall opposite in the hollow hole 2111. The side of the second limiting part 2252 away from the first limiting part 2251 is in contact with or has a small gap with the inner wall opposite in the hollow hole 2111. Thus, the second conductive part 222 can be further limited. That is, at each orientation of the second conductive part 222, the corresponding structure provides a limiting function, provides the installation stability of the second conductive part 222, reduces the possibility of the second conductive part 222 moving randomly relative to the connecting seat 210, and thus also improves the connection stability of the second conductive part 222 and the developing contact electrode.

[0074] In other embodiments, the connecting seat 210 can be made of a conductive resin or plastic material. The first conductive part 221 and the second conductive part 222 can be formed on the connecting seat 210. Thus, the conductive sheet 220 can be reduced, which can save material costs on the one hand, and can simplify the assembly steps of the photosensitive cartridge 1000, reduce the assembly difficulty, improve the assembly efficiency, and improve the production capacity on the other hand.

[0075] As shown in FIG. 10, in some embodiments, the first conductive part 221 and the second conductive part 222 are arranged on the connecting seat 210. The first conductive part 221 and the second conductive part 222 can be arranged on the same side of the connecting seat 210, or can be arranged on opposite sides of the connecting seat 210. Figure 8 As shown in FIG. 10, in some embodiments, the first conductive part 221 and the second conductive part 222 are arranged on the connecting seat 210. The first conductive part 221 and the second conductive part 222 can be arranged on the same side of the connecting seat 210, or can be arranged on opposite sides of the connecting seat 210.

[0076] In some embodiments, the developing cartridge 2000 can include a developing roller. In some embodiments, after the developing cartridge 2000 and the photosensitive cartridge 1000 are assembled, the developing roller can abut against one side of the first conductive part 221 facing the first side 101, and form a contact electrical connection.

[0077] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0078] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A light-sensitive cassette, characterized by, The application relates to a shell, a conductive assembly and a photosensitive cartridge. The shell is provided with a first side and a second side arranged oppositely, and a mounting groove is formed in the shell and communicates with the first side and the second side. The conductive assembly is arranged in the mounting groove and is provided with a first conductive part and a second conductive part electrically connected to each other.

2. The photosensitive cassette of claim 1, wherein, The first conductive part is exposed to the first side and is arranged to be in contact with a developing roller of a developing cartridge in an image forming device. The second conductive part is exposed to the second side and is arranged to be in contact with a developing contact electrode of a host in the image forming device. The conductive assembly comprises a connecting seat arranged in the mounting groove and provided with a hollow hole.

3. The photosensitive cassette of claim 2, wherein, A conductive sheet is arranged on the connecting seat and comprises the first conductive part and the second conductive part.

4. The photosensitive cassette of claim 3, wherein, The first conductive part is arranged on one side of the connecting seat facing the first side.

5. The photosensitive cassette of claim 2, wherein, The second conductive part is embedded in the hollow hole and exposed to the second side.

6. The photosensitive cassette according to any one of claims 2 to 5, wherein The connecting seat is detachably connected to the shell.

7. The photosensitive cassette according to any one of claims 2 to 5, wherein One side of the connecting seat facing the first side is provided with a buckle which is connected to the shell. The connecting seat and the shell are in an integrated structure.

8. The photosensitive cassette of claim 7, wherein, The first conductive part is gradually inclined away from the second side from one end close to the second conductive part to one end away from the second conductive part. The conductive sheet further comprises a lap joint part connected to one end of the second conductive part away from the first conductive part.

9. The photosensitive cassette of claim 2, wherein, One side of the connecting seat facing the first side is further provided with a lap joint groove, and the lap joint part is arranged in the lap joint groove. The conductive sheet further comprises a first limiting part and a second limiting part arranged oppositely. One side of the first limiting part away from the second limiting part is opposite to an inner wall of one side of the hollow hole.

10. The photosensitive web of claim 1 wherein, The connecting seat comprises a connecting seat body and a positioning convex part arranged on one side of the connecting seat body facing the first side. The positioning convex part is surrounded by a positioning groove adapted to the developing roller, and the first conductive part is arranged in the positioning groove.

11. A process cartridge, characterized by, The connecting seat has conductivity.

12. An image forming apparatus characterized by comprising: The connecting seat comprises the first conductive part and the second conductive part. The application relates to a photosensitive cartridge and a developing cartridge. The developing cartridge is mounted on the photosensitive cartridge and comprises a developing roller. The developing roller is in contact with a surface of one side of the first conductive part facing the first side.

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