Developing box and image forming device

Abstract

The utility model discloses a developing box and an image forming device. The developing box comprises a box body and an electrode assembly arranged on the box body, the electrode assembly comprises a doctor blade electrode electrically connected with the doctor blade; the doctor blade electrode is provided with a first electric contact part; a developing electrode electrically connected to the developing roller; the developing roller electrode is provided with a second electric contact part; the powder feeding electrode is electrically connected with the powder feeding roller; the powder feeding electrode is provided with a third electric contact part; the distance between the first electric contact part and the third electric contact part is larger than the distance between the first electric contact part and the second electric contact part. The electrode assembly is simple in structure and can be ensured to operate stably.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic imaging, in particular to a developing box and an image forming device. Background Art

[0002] The developing box is a detachable part widely used in image forming devices, and the developing box can be detachably installed on the drum assembly in the image forming device. The image forming device is provided with a conductive component, which is used to output electrical energy. The developing box is provided with a developing roller, a powder feeding roller, a powder discharge knife and an electrode assembly, and the electrode assembly is used to contact the conductive assembly to receive the electrical energy output by the image forming device. At present, the electrode assembly of the developing box on the market generally includes a first electrode and a second electrode. The first electrode transmits electrical energy to the developing roller, and the second electrode transmits electrical energy to the powder feeding roller and the powder discharge knife. However, the electrical energy required by the powder discharge knife and the powder feeding roller is different. The powder feeding roller and the powder discharge knife receive electrical energy through one electrode, so that the two cannot work stably and efficiently, affecting the normal operation of the developing box. Utility Model Content

[0003] The utility model aims to provide a developing box and an image forming device to solve the problems in the prior art, and has a simple structure and can ensure the stable operation of an electrode assembly.

[0004] The utility model provides a developing box, which is detachably mounted on an image forming device, wherein the developing box comprises:

[0005] A box body for storing developer, including a first end and a second end in a first direction;

[0006] A driving part, rotatably disposed at the first end of the box body;

[0007] A developing roller is rotatably mounted on the box body and can absorb the developer;

[0008] A powder feeding roller is rotatably mounted on the box body to transfer developer to the developing roller;

[0009] The powder knife contacts the developing roller;

[0010] An electrode assembly comprising:

[0011] A powder discharge knife electrode electrically connected to the powder discharge knife, wherein the powder discharge knife electrode has a first electrical contact portion;

[0012] A developing electrode electrically connected to the developing roller; the developing electrode is provided with a second electrical contact portion;

[0013] A powder feeding electrode electrically connected to the powder feeding roller; the powder feeding electrode is provided with a third electrical contact portion;

[0014] A distance between the first electrical contact portion and the third electrical contact portion is greater than a distance between the first electrical contact portion and the second electrical contact portion.

[0015] As described above, in the developing box, optionally, the first electrical contact portion, the second electrical contact portion and the third electrical contact portion are located at vertices of a triangle.

[0016] As described above, in the developing box, optionally, a projection of at least one of the first electrical contact portion, the second electrical contact portion and the third electrical contact portion along the first direction is located within the projection range of the driving portion along the first direction.

[0017] As described above, in the developing box, optionally, the center of the circumscribed circle of the triangle is located on the rotation center line of the driving part.

[0018] The developing box as described above, wherein, optionally, the first electrical contact portion, the second electrical contact portion and the third electrical contact portion are arranged in a straight line.

[0019] As described above, in the developing box, optionally, the second electrical contact portion is located between the first electrical contact portion and the third electrical contact portion, and in a third direction perpendicular to the first direction, the first electrical contact portion is located above the third electrical contact portion.

[0020] As described above, in the developing box, optionally, the powder knife electrode overlaps with the powder knife in the first direction; the second electrical contact portion overlaps with the developing roller in the first direction; and the third electrical contact portion overlaps with the powder feeding roller in the first direction.

[0021] As described above, in the developing box, optionally, the first electrical contact portion is formed integrally with the powder discharge knife; the second electrical contact portion is formed integrally with the developing roller; and the third electrical contact portion is formed integrally with the powder feeding roller.

[0022] As described above, the developer box, wherein, optionally, the powder knife electrode 、 Development electrode 、 The powder feeding electrode is a bent steel sheet.

[0023] The developing box as described above, wherein, optionally, further comprises a storage medium for storing developing box information.

[0024] The developing box as described above, wherein, optionally, the electrode assembly is located at the second end.

[0025] The utility model also provides an image forming device, which includes any of the above-mentioned developing boxes, and:

[0026] a first conductive member electrically connected to the first electrical contact portion;

[0027] a second conductive member electrically connected to the second electrical contact portion;

[0028] A third conductive member is electrically connected to the third electrical contact portion.

[0029] The utility model also provides a developing box, which is detachably mounted on an image forming device including a guide portion, and the developing box includes:

[0030] A box body for storing developer, including a first end and a second end in a first direction;

[0031] A driving part, rotatably disposed at the first end of the box body;

[0032] A developing roller is rotatably mounted on the box body and can absorb the developer;

[0033] The electrode assembly is used to receive the electric energy output by the image forming device, and the electrode assembly transmits the electric energy to the developing roller, and comprises a first movable member movable relative to the box body, and the first movable member can move in the guide part.

[0034] As described above, in the developing box, optionally, the guiding portion is a bent guide groove, and the first movable member moves relative to the box body in the first direction and / or in a direction intersecting the first direction when moving in the guide groove.

[0035] As described above, in the developing box, optionally, the electrode assembly further comprises a supporting member, and the first movable member is slidably disposed on the supporting member and protrudes from the supporting member.

[0036] The developer cartridge as described above, wherein, optionally, a limiting assembly is provided between the support member and the first movable member, the limiting assembly preventing the first movable member from being separated from the support member;

[0037] The limiting assembly includes a first limiting protrusion provided on the first moving member and a limiting flange provided on the supporting member.

[0038] As described above, in the developing box, optionally, the electrode assembly further comprises a first elastic member, the first elastic member is disposed between the supporting member and the first movable member, and the first elastic member drives the first movable member to move in a first direction.

[0039] The developing box as described above, wherein, optionally, further comprises a second moving member and a second elastic member;

[0040] A first slide groove is provided on the side of the first moving member, the second moving member is at least partially slidably disposed in the first slide groove, and one end of the second moving member can extend out of the first slide groove;

[0041] The second elastic member drives the second moving member to move in a direction intersecting the first direction.

[0042] The developing box as described above, wherein, optionally, further comprises a storage medium for storing developing box information;

[0043] The developing box as described above, wherein, optionally, the electrode assembly is located at the second end.

[0044] The utility model also provides an image forming device, which includes any of the above-mentioned developing boxes, and:

[0045] a power supply terminal for outputting electric energy to the developing cartridge, to which the first movable member is electrically connected;

[0046] The guide portion is used for the first movable member to slide, and the power supply terminal is located at the end of the guide groove.

[0047] Compared with the prior art, the present invention has at least the following beneficial effects:

[0048] In the present invention, by reasonably setting the distance relationship between the first electrical contact part, the second electrical contact part and the third electrical contact part, that is, setting the distance between the first electrical contact part and the third electrical contact part to be greater than the distance between the first electrical contact part and the second electrical contact part, the distance between the powder discharge knife motor receiving larger electric energy and the powder delivery knife battery is made longer, so as to avoid the electric energy interaction between the two and affect the normal operation of the developing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 is a schematic structural diagram of the developing cartridge installed on the drum assembly in the first embodiment;

[0050] Figure 2 is a schematic structural diagram of the drum assembly in the first embodiment;

[0051] Figure 3 is a schematic structural diagram of a developing cartridge in Embodiment 1;

[0052] Figure 4 is a schematic diagram of the structure of the first end of the box body after the first protective cover is hidden in the first embodiment;

[0053] Figure 5 is a schematic diagram of the structure of the detected component in the first embodiment;

[0054] Figure 6 is a schematic structural diagram of the first end of the box body in the first embodiment;

[0055] Figure 7 is a schematic structural diagram of the second end of the box body in the first embodiment;

[0056] Figure 8 is a structural schematic diagram of the arrangement of the electrode assembly in Example 1;

[0057] Fig. 9 is a cross-sectional view of the electrode assembly in Example 1;

[0058] Fig.10 is a schematic structural diagram of the second end of the box body in the second embodiment;

[0059] Fig.11 is a schematic structural diagram of the arrangement of electrode assemblies in Example 2;

[0060] Fig.12 is a schematic diagram of the structure of the electrode assembly in contact with the conductive assembly in the second embodiment;

[0061] Fig.13 is a schematic structural diagram of the second end of the box body in the third embodiment;

[0062] Fig.14 is a schematic structural diagram of another angle of the second end of the box body in the third embodiment;

[0063] Fig.15 is a schematic diagram of the structure of the electrode assembly in contact with the conductive assembly in Example 3;

[0064] Fig.16 is a schematic structural diagram of the second end of the box body of the developing box in the fifth embodiment;

[0065] Fig.17 is an exploded schematic diagram of the second end of the box body of the developing box in the fifth embodiment;

[0066] Fig.18 is a schematic structural diagram of the side wall of the main body in the fifth embodiment;

[0067] Fig.19 is a cross-sectional view of a state where the developing cartridge in the fifth embodiment is installed in the image forming device;

[0068] Fig. 20 is a schematic diagram of the three-dimensional structure of the second end of the box body of the developing box in the sixth embodiment;

[0069] Fig.21 is an exploded schematic diagram of the second end of the box body of the developing box in the sixth embodiment;

[0070] Fig. 22 is a schematic structural diagram of the side wall of the main body in the sixth embodiment;

[0071] Fig.23is a schematic structural diagram of a developing cartridge in a state where the developing cartridge is installed in an image forming device in Embodiment 6;

[0072] Fig.24 is a cross-sectional view of a state where the developing cartridge in Embodiment 6 is installed in the image forming apparatus;

[0073] Fig.25 It is a schematic diagram of the structure of the developing box in the seventh embodiment when it is installed in the image forming device.

[0074] Description of reference numerals:

[0075] 1-developer cartridge, 2-drum assembly;

[0076] 10-box body, 11-first end, 12-second end, 13-third end, 14-fourth end;

[0077] 101 - detection part, 102 - left side wall;

[0078] 111 - first protective cover, 112 - first pushing member, 113 - mounting portion, 114 - first guiding member, 119 - driving portion;

[0079] 121 - second protective cover, 122 - second forced push member, 123 - powder filling port, 124 - left bearing;

[0080] 1241 - second guide member;

[0081] 131-developing roller, 132-powder discharge knife, 133-powder delivery roller;

[0082] 141-handle;

[0083] 21-photosensitive drum, 22-drum frame;

[0084] 31-rotating member, 32-transmission rod, 33-detected member;

[0085] 40-power receiving part, 41-developing gear, 42-powder feeding gear, 43-driving gear, 44-idling gear; 45-stirring gear;

[0086] 51-powder knife electrode, 52-developing electrode, 53-powder feeding electrode;

[0087] 511 - first electrical contact portion, 521 - second electrical contact portion, 531 - third electrical contact portion;

[0088] 61-first moving member, 62-supporting member, 63-limiting assembly, 64-first elastic member, 65-second moving member, 66-second elastic member, 67-side wall of the main body, 68-protective cover, 69-third elastic member;

[0089] 611-first chute;

[0090] 621-second chute;

[0091] 631-first limiting member, 632-second limiting member;

[0092] 671 - guide groove, 672 - power supply terminal, 673 - first plate, 674 - second plate, 675 - power supply groove, 676 - baffle;

[0093] 6711-first paragraph, 6712-second paragraph, 6713-third paragraph;

[0094] 91 - a first conductive element; 92 - a second conductive element; 93 - a third conductive element. DETAILED DESCRIPTION

[0095] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0096] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0097] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0098] The present application is further described in detail below in conjunction with the accompanying drawings.

[0099] In the following descriptions of directions, perpendicular to Figure 1 When viewed from the center of the paper, Figure 1 The left side of the paper is left. Figure 1 The right side of the paper is right. Figure 1 The upper side of the paper is the top. Figure 1The lower side of the middle paper is the bottom. Figure 1 The near side of the middle paper is the front, Figure 1 The far side of the middle paper is the back. The left-right direction is an embodiment of the first direction, the front-back direction is an embodiment of the second direction, and the up-down direction is an embodiment of the third direction. The first direction, the second direction and the third direction intersect each other, and are preferably perpendicular.

[0100] With regard to the problems in the background technology, the main reason for the instability of the electrode assembly is that, on the one hand, the powder discharge knife electrode and the powder feeding knife electrode receive large amounts of electrical energy, and unreasonable positioning of the electrodes will lead to interaction during current transmission and affect the normal operation of the developer box; on the other hand, the developer box will be affected by the rotation of the drive unit and produce a slight swing, and under the influence of this swing, the contact between the conductive components will become unstable.

[0101] In view of the problems raised in the background technology, the present invention proposes the following implementation methods to solve them.

[0102] Embodiment 1

[0103] Referring to the drawings, this embodiment provides a developing box 1, including a box body 10 and an electrode assembly disposed on the box body 10. In a specific implementation, the electrode assembly is located on a side of the box body 10, and the electrode assembly is used to receive the electrical energy output by the conductive member on the image forming device.

[0104] Specifically, the electrode assembly includes:

[0105] The powder knife electrode 51 is electrically connected to the powder knife 132 ; the powder knife electrode 51 has a first electrical contact portion 511 ; that is, the electric energy output by the image forming device can be output to the powder knife 132 through the powder knife electrode 51 .

[0106] The developing electrode 52 is electrically connected to the developing roller 131 ; the developing electrode 52 has a second electrical contact portion 521 ; that is, the electric energy output by the image forming apparatus can be output to the developing roller 131 through the developing electrode 52 .

[0107] The powder feeding electrode 53 is electrically connected to the powder feeding roller 133 ; the powder feeding electrode 53 has a third electrical contact portion 531 ; that is, the electric energy output by the image forming device can be output to the powder feeding roller 133 through the powder feeding electrode 53 .

[0108] The first electrical contact portion 511, the second electrical contact portion 521 and the third electrical contact portion 531 are all good conductors of electricity. The powder knife electrode 51, the developing electrode 52 and the powder feeding electrode 53 can be conductive steel sheets, which are bent to be stably mounted on the box body 10. The three do not contact each other. Of course, in other implementations, they can also be conductive materials such as conductive rubber or other metals. In some other embodiments, the powder knife electrode 51, the developing electrode 52 and the powder feeding electrode 53 are conductive resins, and insulating members are set between the three to separate them.

[0109] The axial direction of the developing roller 131 and the axial direction of the powder feeding roller 133 are parallel and both are parallel to the first direction.

[0110] The distance between the first electrical contact portion 511 and the third electrical contact portion 531 is greater than the distance between the first electrical contact portion 511 and the second electrical contact portion 521. In the third direction, the first electrical contact portion 511 is located above the second electrical contact portion 521 and the third electrical contact portion 531. According to the respective functions and requirements of the powder knife electrode 51, the developing electrode 52 and the powder feeding electrode 53, the electric energy received by the powder knife electrode 51 and the powder feeding electrode 53 from the image forming device is greater than the electric energy received by the developing electrode 52 from the image forming device. Since the electric energy received by the powder knife electrode 51 and the powder feeding electrode 53 is relatively large, if the two are too close together, the electric energy between the two will interact with each other and thus affect the normal operation of the developer box 1. Therefore, in this embodiment, the distance L1 between the first electric contact portion 511 and the third electric contact portion 531 is greater than the distance L2 between the first electric contact portion 511 and the second electric contact portion 521; further, the first electric contact portion 511, the second electric contact portion 521 and the third electric contact portion 531 are basically arranged along a straight line, on which the second electric contact portion 521 is located between the first electric contact portion 511 and the third electric contact portion 531, which can be partially collinear or completely collinear. Furthermore, the extension direction of the straight line is roughly parallel to the third direction. The distance L1 and distance L2 referred to above refer to the distance on a plane perpendicular to the first direction, that is, in this embodiment, the distance L1 and distance L2 are the distances along the straight line.

[0111] The powder knife electrode 51, the developing electrode 52 and the powder feeding electrode 53 are located on the same side of the box body 10, so that the whole structure can be arranged more compactly and easily connected.

[0112] The developing cartridge 1 is detachably mounted on a drum assembly 2 of an image forming apparatus. The drum assembly 2 includes a photosensitive drum 21 and a drum frame 22. The photosensitive drum 21 extends in a first direction and can rotate around a drum axis extending in the first direction. The photosensitive drum 21 can receive a developer provided by the developing cartridge 1 to form an electrostatic latent image. The photosensitive drum 21 is supported by the drum frame 22, and the drum frame 22 can carry the developing cartridge 1.

[0113] like Figure 3 and Figure 4 As shown, the developing box 1 includes a box body 10, a developing component, a transmission component, a detected component, a first protective cover 111 and a second protective cover 121.

[0114] like Figure 1 As shown, the box body 10 has a first end 11 and a second end 12 arranged oppositely in the first direction, a third end 13 and a fourth end 14 arranged oppositely in the second direction, and a fifth end and a sixth end arranged oppositely in the third direction. In this embodiment, the electrode assembly is preferably arranged at the first end 11, and in other embodiments, it can be arranged at the second end 12 or other ends.

[0115] The box body 10 is provided with a handle 141, and the handle 141 is located at the fourth end 14. The transmission assembly is located at the first end 11 of the box body 10, and is used to receive the power output by the image forming device so that the developing assembly and the detected assembly in the developing box 1 are driven. The first protective cover 111 is detachably fixedly mounted on the first end 11 of the box body 10, and the first protective cover 111 covers at least part of the transmission assembly, and the first protective cover 111 is used to protect the transmission assembly. The detected assembly is used to be detected by the image forming device and transmit the information of the developing box to the image forming device. The second protective cover 121 is detachably fixedly mounted on the second end 12 of the box body 10, and the second protective cover 121 at least covers part of the detected assembly, and the second protective cover 121 is used to protect the detected assembly.

[0116] like Figure 3 and Figure 4 As shown, the developing assembly includes a developing roller 131, a stirring frame (not shown in the figure) and a powder feeding roller 133, and the developing roller 131, the stirring frame and the powder feeding roller 133 are rotatably supported by the first end 11 and the second end 12. The rotation axes of the developing roller 131, the stirring frame and the powder feeding roller 133 all extend along the first direction. The powder feeding roller 133 is arranged adjacent to the developing roller 131, and in the second direction, the developing roller 131 is closer to the third end 13 of the box body 10 than the powder feeding roller 133. The stirring frame is used to stir the developer in the box body 10, so that the developer generates friction and prevents the developer from agglomerating.

[0117] The developing box 1 further includes a powder discharge knife 132 extending along a first direction. The powder discharge knife 132 is used to contact the developing roller 131 and control the thickness of the developer layer on the developing roller 131 so that the developer on the developing roller 131 is uniform.

[0118] like Figure 3 and Figure 4As shown, the first end 11 of the box body 10 is provided with a transmission assembly, which includes a driving part 119 rotatably mounted on the first end 11 of the box body 10, and the rotation axis of the driving part 119 is parallel to the first direction. The driving part 119 includes a coaxially integrally formed driving gear 43 and a power receiving part 40, and the driving gear 43 is closer to the first end 11 of the box body 10 than the power receiving part 40 in the first direction. The power receiving part 40 is used to connect with the power output shaft on the image forming device to receive the power output of the image forming device.

[0119] Affected by the driving part 119, the developing box 1 will slightly shake when working. The projection of at least one of the first electrical contact part 511, the second electrical contact part 521 and the third electrical contact part 531 in the first direction is located within the projection range of the driving part 119 along the first direction, and preferably all three are located within the projection range of the driving part 119. Such an arrangement can reduce the amplitude of the swing of the developing box 1 due to the influence of the driving part 119, thereby ensuring the stability of the electrode assembly when working.

[0120] The transmission assembly also includes a developing gear 41, a powder feeding gear 42, an idler gear 44 and a stirring gear 45. The driving unit 119 transmits power to the developing gear 41, the powder feeding gear 42, the idler gear 44 and the stirring gear 45 through the driving gear 43. The developing gear 41 is coaxially fixedly mounted on one end of the developing roller 131 close to the first end 11 of the box body 10 and drives the developing roller 131 to rotate. The powder feeding gear 42 is coaxially fixedly mounted on one end of the powder feeding roller close to the first end 11 of the box body 10 and drives the powder feeding roller 133 to rotate. The stirring gear 45 is coaxially fixedly mounted on one end of the stirring frame close to the first end 11 of the box body 10 and drives the stirring frame to rotate. The stirring gear 45 includes a large-diameter stirring gear and a small-diameter stirring gear. In the first direction, the large-diameter stirring gear is farther away from the first end 11 of the box body 10 than the small-diameter stirring gear. The idler gear 44 is rotatably mounted on the first end 11 of the box body 10. This embodiment does not limit the number of gears of the transmission assembly and the meshing relationship between the gears, and can be set according to actual needs.

[0121] like Figure 3 , Figure 4 and Figure 5As shown, the developing box 1 also includes a detected component, which is used to trigger the detection member 101 of the image forming device, so that the developing box 1 can be detected by the image forming device. The detected component includes a rotating member 31, a transmission rod 32 and a detected member 33. The rotating member 31 is located at the first end 11 of the box body 10. The rotating member 31 is provided with a toothed portion and a toothless portion. The toothed portion and the toothless portion are arranged along the rotation direction of the rotating member 31. The toothed portion is used to mesh with the small-diameter stirring gear so that the rotating member 31 rotates following the stirring gear 45. When the toothless portion is opposite to the small-diameter stirring gear, the rotating member 31 does not rotate following the stirring gear 45. The transmission rod 32 extends in the first direction, and the transmission rod 32 is supported by the box body 10 and can move relative to the box body 10 in the first direction. One end of the transmission rod 32 close to the first end 11 in the first direction contacts the rotating member 31, and the other end of the transmission rod 32 contacts the detected member 33. The transmission rod 32 can be driven by the rotating member 31 to move, and drives the detected member 33 to move during the movement. The detected member 33 is located at the second end 12 of the box body 10. The detected member 33 can rotate relative to the box body 10. The rotation axis of the detected member 33 intersects with the first direction. The detected member 33 is rotationally connected to the transmission rod 32. When the transmission rod 32 moves in the first direction, it drives the detected member 33 to rotate and thereby triggers the detection member 101 in the image forming device.

[0122] like Figure 3 and Figure 6 As shown, the first protective cover 111 is provided with a first pushing member 112, a mounting portion 113 and a first guide member 114. The first pushing member 112 is located behind the first protective cover 111 in the second direction and protrudes backwards along the second direction. In the second direction, the first pushing member 112 is closer to the fourth end 14 than the third end 13. The first pushing member 112 has an arc surface for receiving force. The first pushing member 112 is used to receive the pushing force applied by the drum assembly 2 so that the developing roller 131 is in close contact with the photosensitive drum. The mounting portion 113 is located below the first protective cover 111 in the third direction. The first guide member 114 is located in front of the first protective cover 111 in the first direction. The first guide member 114 protrudes outwards along the first direction. The first guide member 114 has an arc surface for guiding. When the developing cartridge 1 is installed on the drum assembly 2, the first guide member 114 guides the developing cartridge 1. The first protective cover further includes a through hole, which penetrates the first protective cover 111 in the first direction, and is used to expose the power receiving part 40 so that the power receiving part 40 can receive the power output by the image forming apparatus.

[0123] The developing box 1 also includes a storage medium, which is installed on the developing box 1 by being detachably installed on the mounting portion 113. The storage medium is used to store information of the developing box 1. When the developing box 1 is located in the image forming device, the storage medium contacts the image forming device and transmits the stored information to the image forming device, so that the developing box 1 is recognized by the image forming device.

[0124] like Figure 3 and Figure 7 As shown, the second protective cover 121 includes a second pushing member 122, which protrudes backward in the second direction. In the second direction, the second pushing member 122 is closer to the fourth end 14 relative to the third end 13. The second pushing member 122 has an arc surface for receiving force. The second pushing member 122 is used to receive the pushing force applied by the drum assembly 2, so that the developing roller 131 is in close contact with the photosensitive drum.

[0125] The second end 12 of the box body 10 is also provided with a left bearing 124, which rotatably supports the end of the developing roller 131 and the powder feeding roller 133 close to the second end 12 in the first direction, and the first end 11 of the box body 10 is also provided with a right bearing (not shown in the figure), which supports the end of the developing roller 131 and the powder feeding roller 133 in the first direction. The left bearing 124 is provided with a second guide 1241, which protrudes outwardly along the first direction, and the second guide 1241 includes an arc surface for guiding. When the developing box 1 is installed on the drum assembly 2, the second guide 1241 guides the developing box 1.

[0126] The second end 12 of the box body 10 is also provided with a powder filling port 123, which penetrates the second end 12 in the first direction. The powder filling port 123 is used to allow the developer to be filled into the box body 10 through the powder filling port 123. In this embodiment, the powder filling port 123 is a circular port. In order to prevent the developer from leaking, a circular cover is provided to cover the powder filling port 123.

[0127] One end of the developing electrode 52 contacts one end of the developing roller 131 near the second end 12 in the first direction to realize electrical connection with the developing roller 131, one end of the powder feeding electrode 53 contacts one end of the powder feeding roller 133 near the second end 12 in the first direction to realize electrical connection with the powder feeding roller 133, and the powder discharge knife electrode 51 contacts one end of the powder discharge knife 132 near the second end 12 in the first direction to realize electrical connection with the powder discharge knife 132. After receiving the electric energy output by the image forming device, the developing roller 131 and the powder feeding roller 133 are charged, which is beneficial to adsorb the developer and transfer the developer to the photosensitive drum 21, and after receiving the electric energy output by the image forming device, the powder discharge knife 132 is beneficial to control the thickness of the developer layer on the developing roller 131.

[0128] Embodiment 2

[0129] This embodiment is a further improvement on the first embodiment, and the similarities are not repeated here, and only the differences are described below.

[0130] Please refer to Figure 10 to Figure 12 , different from the first embodiment, in the present embodiment, the first electrical contact portion 511, the second electrical contact portion 521 and the third electrical contact portion 531 are located at the vertices of a triangle. That is, the first electrical contact portion 511, the second electrical contact portion 521 and the third electrical contact portion 531 are not on the same straight line, but still satisfy the distance relationship between the three mentioned in the first embodiment. Through this arrangement, the largest distance between the first electrical contact portion 511, the second electrical contact portion 521 and the third electrical contact portion 531 and the rotation center line of the driving portion 119 can be further reduced, and when the developing box 1 is slightly shaken by the influence of the driving portion 119, the shaking amplitude can be reduced, which is conducive to further improving the stability of the electrode assembly during operation.

[0131] Further, in a preferred implementation of the present embodiment, the powder knife electrode 51 contacts one end of the powder knife 132 close to the second end 12 in the first direction to achieve electrical connection with the powder knife 132. One end of the developing electrode 52 is sleeved on one end of the developing roller 131 close to the second end 12 in the first direction to achieve electrical connection with the developing roller 131.

[0132] One end of the powder feeding electrode 53 is sleeved on one end of the powder feeding roller 133 close to the second end 12 in the first direction to achieve electrical connection with the powder feeding roller 133 .

[0133] The powder knife electrode 51, the developing electrode 52 and the powder feeding electrode 53 are supported by the left bearing 124. In some implementations, the powder knife electrode 51, the developing electrode 52 and the powder feeding electrode 53 can also be arranged on the right side as needed, and then supported by the bearing arranged on the right side.

[0134] The end of the powder discharge knife electrode 51 away from the powder discharge knife 132 has a first electrical contact portion 511 ; the end of the developing electrode 52 away from the developing roller 131 has a second electrical contact portion 521 ; the end of the powder feeding electrode 53 away from the powder feeding roller 133 has a third electrical contact portion 531 .

[0135] Observing along the first direction, the geometric centers of the first electrical contact portion 511, the second electrical contact portion 521, and the third electrical contact portion 531 in this embodiment are connected to form a triangle. In the second direction, the second electrical contact portion 521 is located in front of the third electrical contact portion 531, and in the third direction, the first electrical contact portion 511 is located above the second electrical contact portion 521 and the third electrical contact portion 531. In order to prevent the distance between the powder knife electrode 51 and the powder feeding electrode 53 with large electrical energy from being too close, the interaction between the electrical energies affects the normal operation of the developing box 1. In this embodiment, the distance L3 between the first electrical contact portion 511 and the third electrical contact portion 531 is greater than the distance L4 between the first electrical contact portion 511 and the second electrical contact portion 521.

[0136] Observed from the first direction, at least one of the first electrical contact portion 511 , the second electrical contact portion 521 and the third electrical contact portion 531 is located within the projection of the driving portion 119 in the first direction. In this embodiment, preferably, all three are located within the projection range of the driving portion 119 . Since the driving part 119 receives the power output by the image forming device and rotates, the developing box 1 will be affected by the rotation of the driving part 119 and follow the driving part 119 to produce a slight swing in the image forming device along the rotation direction of the driving part 119 with the driving part 119 as the rotation center. Therefore, when the first electrical contact part 511, the second electrical contact part 521 and the third electrical contact part 531 are all located within the projection of the driving part 119 in the first direction, the distance between the first electrical contact part 511, the second electrical contact part 521 and the third electrical contact part 531 and the rotation axis of the developing box 1 is also reduced accordingly. Then, when the developing box is in the working state, the first electrical contact part 511, the second electrical contact part 521 and the third electrical contact part 531 will be less affected by the swing, so that the contact between the electrode assembly and the conductive assembly in the image forming device is more stable, thereby ensuring the stable transmission of electrical energy. In a preferred implementation, in order to minimize the swinging degree of the first electrical contact portion 511 , the second electrical contact portion 521 and the third electrical contact portion 531 , the center of the circumscribed circle of the triangle is located on the rotation center line of the driving portion 119 .

[0137] Embodiment 3

[0138] This embodiment is a further improvement on the second embodiment, and the similarities are not repeated here, and only the differences are described below.

[0139] Please refer to Figure 13 to Figure 15 On the basis of Example 2, further, the first electrical contact portion 511 is formed integrally with the powder discharge knife 132; the second electrical contact portion 521 is formed integrally with the developing roller 131; the third electrical contact portion 531 is formed integrally with the powder feeding roller 133, and the powder discharge knife 132, the developing roller 131 and the powder feeding roller 133 are in direct contact with the conductive member.

[0140] In this embodiment, the first electrical contact portion 511 is an end portion of the powder knife 132 close to the second end 12 in the first direction, that is, the first electrical contact portion 511 is integrally formed with the powder knife 132; the end of the powder knife 132 close to the second end 12 in the first direction extends leftward along the first direction to form the powder knife electrode 51, and the first electrical contact portion 511 protrudes relative to the second end 12. The second electrical contact portion 521 is an end portion of the developing roller 131 close to the second end 12 in the first direction, that is, the second electrical contact portion 521 is integrally formed with the developing roller 131. The third electrical contact portion 531 is an end portion of the powder feeding roller 133 close to the second end 12 in the first direction, that is, the third electrical contact portion 531 is integrally formed with the powder feeding roller 133. The ends of the developing roller 131 and the powder feeding roller 133 close to the second end 12 in the first direction are supported by the left bearing 124 and protrude relative to the second end 12 through the passage of the left bearing 124. It should be pointed out that, in actual application, the powder discharge knife 132, the powder feeding roller 133 and the developing roller 131 may also be arranged on the right side and supported by the bearings arranged on the right side.

[0141] The geometric centers of the first electrical contact portion 511, the second electrical contact portion 521 and the third electrical contact portion 531 are connected in pairs to form a triangle. In order to prevent the first electrical contact portion 511 and the third electrical contact portion 531 having larger electrical energy from being too close to each other, resulting in interaction between the electrical energies affecting the normal operation of the developer box 1, the distance L5 between the first electrical contact portion 511 and the third electrical contact portion 531 is greater than the distance L6 between the first electrical contact portion 511 and the second electrical contact portion 521.

[0142] The powder knife electrode 51 overlaps with the powder knife 132 in the first direction; the second electrical contact portion 521 overlaps with the developing roller 131 in the first direction; and the third electrical contact portion 531 overlaps with the powder feeding roller 133 in the first direction. The second electrical contact portion 521 is formed at one end of the developing roller 131; and the third electrical contact portion 531 is formed at one end of the powder feeding roller 133. In this way, the entire structure can be made more compact.

[0143] In this embodiment, the powder knife 132 , the developing roller 131 and the powder feeding roller 133 are directly in contact with the image forming device to receive electric energy, which simplifies the component structure of the developing box 1 and saves the production cost of the developing box 1 .

[0144] Alternatively, an intermediate piece may be sleeved on the ends of the developing roller 131 and the powder feeding roller 133 to prevent the developing roller 131 and the powder feeding roller 133 from causing wear to the conductive piece on the image forming device when the developing roller 131 and the powder feeding roller 133 rotate.

[0145] Embodiment 4

[0146] This embodiment is a specific application of Embodiment 1, 2 or 3, and the similarities are not repeated here, and only the differences are described below.

[0147] Please refer to the drawings in the first, second and third embodiments. This embodiment proposes an image forming device, which includes the developing box 1 of the first, second or third embodiment and a conductive member, wherein the conductive member includes a first conductive member 91 electrically connected to the first electrical contact portion 511, a second conductive member 92 electrically connected to the second electrical contact portion 521, and a third conductive member 93 electrically connected to the third electrical contact portion 531. That is, the image forming device includes a conductive component, which is used to electrically connect to the electrode component in the developing box 1 and transfer the electric energy output by the image forming device to the developing box 1. The conductive component includes a first conductive member 91, a second conductive member 92 and a third conductive member 93. Specifically, the conductive component is disposed on the left side wall 102 of the image forming device. In other implementations, the conductive component may also be disposed on the right side wall of the image forming device.

[0148] Since the developing roller 131 and the powder feeding roller 133 need to rotate during the operation of the developing box 1, in order to prevent the developing roller 131 and the powder feeding roller 133 from rubbing against the conductive parts in the image forming device during movement, causing damage to the developing roller 131, the powder feeding roller 133 and the conductive parts, the present embodiment has been further improved. Specifically, the present embodiment also includes: a first intermediate part arranged between the first electrical contact portion 511 and the first conductive part 91, a second intermediate part arranged between the second electrical contact portion 521 and the second conductive part 92, and a third intermediate part arranged between the third electrical contact portion 531 and the third conductive part 93.

[0149] Specifically, the first middle piece is located in the axial direction of the developing roller 131, and in the first direction, the first middle piece overlaps with the second conductive piece 92 and the developing roller 131, and the first middle piece contacts the second conductive piece 92 and the developing roller 131. The second middle piece is arranged in the axial direction of the powder feeding roller 133, and in the first direction, the second middle piece overlaps with the third conductive piece 93 and the powder feeding roller 133, and the second middle piece contacts the third conductive piece 93 and the powder feeding roller 133. Similarly, in order to protect the powder discharge knife 132 and the first conductive piece 91, the third middle piece is arranged between the powder discharge knife 132 and the first conductive piece 97, and in the first direction, the third middle piece powder discharge knife 132 overlaps with the first conductive piece 97. The first middle piece, the second middle piece and the third middle piece are all made of conductive materials.

[0150] Embodiment 5

[0151] In practical applications, in addition to the reasons mentioned in the background technology, the reasons that affect the normal operation of the developer cartridge also include: the power supply terminals of existing image forming devices are usually directly exposed and set on the side walls of the image forming device. When the developer cartridge is installed, the parts of the developer cartridge other than the electrodes will also touch the power supply terminals, which is easy to wear the power supply terminals or cause the power supply terminals to deform, resulting in the power supply terminals being unable to maintain good contact with the electrodes, thereby affecting power supply. In order to further solve the problem of the power supply terminals being unable to maintain good contact with the electrodes and affecting power supply, the following improvements are made in this embodiment:

[0152] Please refer to the attached Fig.16 To the attached Fig.19 This embodiment provides an image forming device and a developing box 1 that can be detachably installed in the image forming device. The developing box 1 includes an electrode assembly, and the electrode assembly is arranged at one end of the developing box 1, preferably the second end 12 in this embodiment.

[0153] The electrode assembly includes a first movable member 61, which is electrically connected to a developing roller 131 rotatably mounted in the developing cartridge 1. The first movable member 61 can move relative to the cartridge body 10 to prevent the power supply between the electrode assembly and the developing roller 131 from being affected due to hard wear.

[0154] In this embodiment, the first movable member 61 is preferably capable of displacement along the first direction and the direction intersecting the first direction. In some embodiments, the first movable member 61 can be displaced in the first direction or in the direction intersecting the first direction. The movement of the first movable member 61 along the first direction can reduce wear and tear on the one hand, and help maintain the electrical connection between the power supply terminal and the first movable member 61 on the other hand.

[0155] In order to ensure that the first movable member 61 can move along the first direction, the electrode assembly also includes a support member 62, which is arranged at the second end 12, and the first movable member 61 is slidably arranged on the support member 62 and protrudes from the support member 62. In the first direction, the first movable member 61 is at least partially farther away from the first end 11 than the support member 62.

[0156] The support member 62 and the first movable member 61 are both made of conductive materials, such as conductive resin or conductive metal. The support member 62 is fixedly mounted on the left end of the developer box 1, and the right end of the support member 62 is provided with a first support hole and a second support hole, and the first support hole and the second support hole are both blind holes formed by extending to the left along the first direction. The left end of the developing roller 131 is inserted into the first support hole and rotatably supported by the wall of the first support hole, and the left end of the powder feeding roller is rotatably inserted into the second support hole and rotatably supported by the wall of the second support hole. The left end of the support member 62 is provided with a second chute 621 integrally formed. At least a part of the first movable member 61 is located in the second chute 621. In actual application, the above-mentioned first movable member 61 and the support member 62 can also be arranged at the right end of the developer box 1 as needed, which can be realized by those skilled in the art and will not be repeated here.

[0157] In order to prevent the first moving member 61 from being separated from the support member 62, a limiting assembly 63 is arranged between the support member 62 and the first moving member 61; the function of the limiting assembly 63 is to limit the moving range of the first moving member 61 so that the left end of the first moving member 61 can extend out of the support member 62 without being separated from the support member 62. The limiting assembly 63 includes a first limiting member 631 arranged on the first moving member 61 and a second limiting member 632 arranged on the support member 62. In order to enable the first moving member 61 to contact with the power supply terminal to ensure the contact effect. The electrode assembly also includes a first elastic member 64, which is arranged between the support member 62 and the first moving member 61. A mounting groove can be integrally formed at the right end of the first moving member 61, and a positioning column protruding to the right is integrally formed on the left wall of the mounting groove, and a first elastic member 64 is sleeved on the positioning column. The first elastic member 64 is preferably a compression spring, and the two ends of the first elastic member 64 are respectively in contact with the first moving member 61 and the support member 62. The first stopper 631 may be a stopper protrusion formed on the upper wall and the lower wall of the first moving member 61 and connected by a cantilever, and the second stopper 632 may be a stopper flange formed at the notch of the second slide groove 621. During installation, the stopper protrusion is pressed inwardly so that the right end of the first moving member 61 passes through the stopper flange and is inserted into the second slide groove 621. Due to the action of the stopper flange and the stopper protrusion, the first moving member 61 can be prevented from being separated from the installation groove.

[0158] The image forming device is provided with a main body side wall 67, and a guide portion is provided on the main body side wall 67, and the guide portion is preferably a guide groove 671, and the guide groove 671 is used for the first movable member 61 to slide. A power supply terminal 672 is provided at the end of the guide groove 671, and the power supply terminal 672 is used to be electrically connected to the first movable member 61. The length direction of the guide groove 671 is perpendicular to the first direction. When the developer box 1 equipped with the electrode assembly is installed, the left end of the first movable member 61 is inserted into the guide groove 671. At this time, the first movable member 61 is compressed to the right until the first movable member 61 moves to the power supply terminal 672, and the first movable member 61 extends to the left and is electrically connected to the power supply terminal 672. Since the first movable member 61 has a certain amount of movement in the first direction, it can avoid the first movable member 61 and the guide groove 671 from being hard-contacted, reducing wear and tear. At the same time, it can ensure that there is still good electrical contact after wear. The middle part of the guide groove 671 is arched upward, that is, the guide groove is bent. From the back to the front, the guide groove includes a first section 6711, a second section 6712 and a third section 6713 which are bent and connected in sequence.

[0159] During the process of installing the developing box into the main body, the first movable member 61 on the developing box moves forward in the guide groove 671 relative to the supporting member 62. When the first movable member 61 moves from the first section 6711 to the second section 6712, since the second section 6712 arches upward, the second section 6712 applies an upward force to the first movable member 61, so that the first movable member 61 moves upward relative to the second slide groove 621. When the first movable member 61 moves from the second section 6712 to the third section 6713, the third section 6713 applies a downward force to the first movable member 61, so that the first movable member 61 moves downward relative to the second slide groove 621, thereby avoiding the first movable member 61 from being damaged by rigid contact with the guide groove 671.

[0160] The guide groove 671 can be formed by a depression of the main body side wall 67 or formed by other components. In a preferred implementation, the guide groove 671 is formed by a first plate 673 and a second plate 674 fixedly disposed on the main body side wall 67 .

[0161] A power supply groove 675 is provided at the end of the guide groove 671, and the power supply groove 675 is formed on the main body side wall 67. When the first movable member 61 moves to the power supply groove 675, the first movable member 61 extends and inserts into the power supply groove 675 under the action of the first elastic member 64, and abuts against the power supply terminal 672. After receiving the electric energy transmitted by the power supply terminal, the electrode assembly transmits the electric energy to the developing roller 131 and / or the powder feeding roller, so that the developing roller 131 and / or the powder feeding roller are charged to absorb the developer.

[0162] In order to protect the power supply terminal 672, a protective sleeve 68 and a third elastic member 69 are further provided in this embodiment. Both the protective sleeve 68 and the third elastic member 69 are sleeved on the power supply terminal 672. One end of the third elastic member 69 abuts against the bottom of the power supply groove 675, and the other end is fixedly connected to the protective sleeve 68. That is, when the developing cartridge 1 is not installed, the protective sleeve 68 protrudes rightward from the surface of the main body side wall 67 under the action of the third elastic member 69 to achieve electrode protection and prevent the power supply terminal 672 from being damaged by collision with external objects.

[0163] The first moving member 61 can drive the protective cover 68 to move and abut against the power supply terminal 672. The first moving member 61 is provided with a guide surface, so that when the guide surface abuts against the protective cover 68, the guide surface is an inclined surface, which can drive the protective cover 68 to move leftward and shrink into the power supply groove 675.

[0164] Embodiment 6

[0165] This embodiment is a further improvement made on the basis of the fifth embodiment, and the similarities are not repeated here, and only the differences are described below.

[0166] The main difference between this embodiment and the fifth embodiment is that the position of the power supply groove 675 is different, and in order to adapt to the position of the power supply groove 675, the developer box 1 is further provided with a second movable member 65 and a second elastic member 66.

[0167] Please refer to Figure 20 to Figure 24 In this embodiment, the power supply groove 675 is formed on the first plate 673 or the second plate 674 .

[0168] A first slide groove 611 is provided on the side of the first moving member 61, and the second moving member 65 is at least partially slidably disposed in the first slide groove 611, and one end of the second moving member 65 can extend out of the first slide groove 611. The opening of the first slide groove 611 on the first moving member 61 should face the power supply groove 675, that is, when the power supply groove 675 is located on the first plate 673, the opening of the first slide groove 611 faces the first plate 673; when the power supply groove 675 is located on the second plate 674, the opening of the first slide groove 611 faces the second plate 674.

[0169] The second elastic member 66 is installed in the first slide groove 611, and one end thereof abuts against the second moving member 65. That is, the second moving member 65 is at least partially located in the first slide groove 611. When the first moving member 61 slides to the end of the guide groove, the second moving member 65 can be inserted into the power supply groove 675 under the action of the second elastic member 66 and abut against the power supply terminal 672. That is, at this time, the electric energy is conducted through the second moving member 65 and the first moving member 61. A limiting structure is provided between the second moving member 65 and the first moving member 61 to limit the moving range of the second moving member 65.

[0170] In some embodiments, the first elastic member 64 may not be provided, and only the second elastic member 66 is provided. The second elastic member 66 drives the second moving member 65 to move relative to the box body 10 to engage with the power supply terminal 672 .

[0171] Embodiment 7

[0172] This embodiment is a further improvement made on the basis of the fifth embodiment, and the similarities are not repeated here, and only the differences are described below.

[0173] The main difference between this embodiment and the fifth embodiment is that the protection structure for the power supply terminal is different.

[0174] Please refer to Fig.25 In this embodiment, the protective cover 68 and the third elastic member 69 in the fifth embodiment are eliminated, and a baffle 676 for closing a power supply groove 675 formed on the side wall 67 of the main body is provided on the side wall 67 of the main body.

[0175] Specifically, the baffle 676 is rotatably mounted on the main body side wall 67, and the baffle 676 is connected to the main body side wall 67 by a torsion spring. The baffle 676 has at least two positions on the main body side wall 67. In the first position, the baffle 676 covers the power supply groove 675; in the second position, the baffle 676 is misaligned with the power supply groove 675, and the power supply groove 675 is not blocked by the baffle 676. When the developer cartridge 1 is installed, the baffle 676 is driven by the first movable member 61 to switch from the first position to the second position, and the first movable member 61 is inserted into the power supply groove 675 and electrically contacts the power supply terminal 672. When the developer cartridge 1 is removed, the baffle 676 returns to the first position under the action of the torsion spring.

[0176] The above embodiments may be arranged in combination or may be arranged separately.

[0177] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.

Claims

1. A developing box, detachably mounted on an image forming device, the developing box comprising: A box body for storing developer, including a first end and a second end in a first direction; A driving part, rotatably disposed at the first end of the box body; A developing roller is rotatably mounted on the box body and can absorb the developer; A powder feeding roller is rotatably mounted on the box body to transfer developer to the developing roller; The powder knife contacts the developing roller; An electrode assembly comprising: A powder discharge knife electrode electrically connected to the powder discharge knife, wherein the powder discharge knife electrode has a first electrical contact portion; A developing electrode electrically connected to the developing roller; the developing electrode is provided with a second electrical contact portion; A powder feeding electrode electrically connected to the powder feeding roller; the powder feeding electrode is provided with a third electrical contact portion; The invention is characterized in that a distance between the first electrical contact portion and the third electrical contact portion is greater than a distance between the first electrical contact portion and the second electrical contact portion.

2. The developing cartridge according to claim 1, characterized in that: The first electrical contact portion, the second electrical contact portion and the third electrical contact portion are located at vertices of a triangle.

3. The developing cartridge according to claim 2, characterized in that: A projection of at least one of the first electrical contact portion, the second electrical contact portion, and the third electrical contact portion along the first direction is located within a projection range of the driving portion along the first direction.

4. The developing cartridge according to claim 2, wherein: The center of the circumscribed circle of the triangle is located on the rotation center line of the driving part.

5. The developing cartridge according to claim 1, wherein: The first electrical contact portion, the second electrical contact portion and the third electrical contact portion are arranged along a straight line.

6. The developing cartridge according to claim 5, characterized in that: The second electrical contact portion is located between the first electrical contact portion and the third electrical contact portion, and in a third direction perpendicular to the first direction, the first electrical contact portion is located above the third electrical contact portion.

7. The developing cartridge according to claim 1, characterized in that: The powder knife electrode overlaps with the powder knife in the first direction; the second electrical contact portion overlaps with the developing roller in the first direction; and the third electrical contact portion overlaps with the powder feeding roller in the first direction.

8. The developing cartridge according to claim 7, wherein: The first electrical contact portion is formed integrally with the powder discharge knife; the second electrical contact portion is formed integrally with the developing roller; and the third electrical contact portion is formed integrally with the powder feeding roller.

9. The developing cartridge according to any one of claims 1 to 8, characterized in that: The powder knife electrode 、 Development electrode 、 The powder feeding electrode is a bent steel sheet.

10. The developing cartridge according to claim 1, wherein: Also included is a storage medium for storing the developing box information.

11. The developing cartridge according to claim 1, characterized in that: The electrode assembly is located at the second end.

12. An image forming device, characterized in that: The developer cartridge comprises any one of claims 1 to 11, and: a first conductive member electrically connected to the first electrical contact portion; a second conductive member electrically connected to the second electrical contact portion; A third conductive member is electrically connected to the third electrical contact portion.

13. A developing cartridge detachably mounted on an image forming device including a guide portion, the developing cartridge comprising: A box body for storing developer, including a first end and a second end in a first direction; A driving part, rotatably disposed at the first end of the box body; A developing roller is rotatably mounted on the box body and can absorb the developer; It is characterized in that the electrode assembly is used to receive the electric energy output by the image forming device, and the electrode assembly transmits the electric energy to the developing roller, and includes a first movable member movable relative to the box body, and the first movable member can move in the guide part.

14. The developing cartridge according to claim 13, wherein: The guiding portion is a bent guiding groove, and when the first moving member moves in the guiding groove, it moves relative to the box body in a first direction and / or in a direction intersecting the first direction.

15. The developing cartridge according to claim 13, characterized in that: The electrode assembly further comprises a support member, and the first moving member is slidably disposed on the support member and protrudes from the support member.

16. The developing cartridge according to claim 15, characterized in that: A limit assembly is provided between the support member and the first movable member, and the limit assembly prevents the first movable member from being separated from the support member; The limiting assembly includes a first limiting protrusion provided on the first moving member and a limiting flange provided on the supporting member.

17. The developing cartridge according to claim 15, characterized in that: The electrode assembly further includes a first elastic member disposed between the support member and the first movable member, and the first elastic member drives the first movable member to move in a first direction.

18. The developing cartridge according to claim 15, characterized in that: Also includes a second moving member and a second elastic member; A first slide groove is provided on the side of the first moving member, the second moving member is at least partially slidably disposed in the first slide groove, and one end of the second moving member can extend out of the first slide groove; The second elastic member drives the second moving member to move in a direction intersecting the first direction.

19. The developing cartridge according to claim 13, characterized in that: Also included is a storage medium for storing the developing box information.

20. The developing cartridge according to claim 13, wherein: The electrode assembly is located at the second end.

21. An image forming device, characterized in that: A developing box comprising any one of claims 13 to 20, and: a power supply terminal for outputting electric energy to the developing cartridge, to which the first movable member is electrically connected; The guide portion is used for the first movable member to slide, and the power supply terminal is located at the end of the guide portion.

Images