Developing box

Abstract

The invention provides a developing box which is detachably installed in a main assembly of imaging equipment, and the imaging equipment is provided with a detection device and a grounding end. The developing box comprises a detected device, the detected device comprises a conductive assembly and a first voltage control component, the conductive assembly can be electrically connected with the detecting device and a grounding end, the first voltage control component can receive external force to move between a first position and a second position, in the first position, the detecting device is electrically communicated with the grounding end, and in the second position, the detecting device is electrically communicated with the grounding end. The detection device is not conducted with the grounding end; the developing box with the structure is simpler in structure, and miniaturization of the developing box is facilitated.

Description

A developing box Technical Field

[0001] The present application relates to the field of electronic photographic imaging equipment, in particular to a developing box. Background Art

[0002] As is well known, an imaging device includes a main assembly for mounting a developer cartridge / drum cartridge and a detection device 50 for determining information about the developer cartridge installed in the imaging device. For example, the detection device 50 is used to determine whether the developer cartridge newly mounted in the imaging device is a new product, or information such as the size and capacity of the developer cartridge.

[0003] An imaging device is currently available, as shown in Figures 1-3. The detection device 50 includes a detection unit 501, a power supply 502, and a switch member 503. The detection unit 501, the power supply 502, and the switch member 503 are electrically connected to form an electrically conductive circuit. The switch member 503 is used to control the on / off of the circuit. The switch member 503 is at least partially made of a conductive material and is configured as a movable member. It can have an initial position, a closed position, and an open position. As shown in Figure 1, in the initial position (also referred to as the open position), the switch member 503 is in a non-conducting state. In the closed position (as shown in Figure 2), the switch member 503 closes the circuit, the circuit is conductive, and the detection unit 501 can detect electrical signals. In the open position (as shown in Figure 3), the switch member 503 is in a non-conducting state. When the movable member switches between the closed position and the open position, the electrical signal (e.g., voltage) of the detection unit 501 changes, thereby determining the information of the developer cartridge.

[0004] There is currently a developing box that can be detachably mounted to the above-mentioned imaging device. The developing box is provided with a first driving force receiving member and a detected device. The first driving force receiving member receives the driving force from the imaging device and rotates. The detected device can move in response to the rotation of the first driving force receiving member. The detected device can toggle the switch member 503 between a closed position and an open position, causing the electrical signal of the internal circuit of the detection device to change, so that the developing box is detected. A developing box with this structure requires a large number of transmission mechanisms, and its structure is complex and not conducive to the miniaturization design of the developing box. The developing box with the above structure will generate mechanical collision noise during the detection process, which poor user experience.

[0005] Furthermore, some developer cartridges are typically installed in a drum cartridge equipped with a photosensitive drum, which often requires cleaning. Existing developer cartridges utilize a separation force receiving member to receive the force of a separation force applying member of an imaging device or a separation force transmitting member of a drum cartridge, thereby separating the developer roller from the photosensitive drum and preventing toner from adhering to the photosensitive drum during cleaning.

[0006] In the research of such developer cartridges, how to simplify the developer cartridge structure, how to detect the developer cartridge, and how to improve the cleaning effect of the photosensitive drum are important topics that technicians in this field continue to study.

[0007] Summary of the Invention

[0008] The purpose of this application is to provide a developing box to further develop the above technology.

[0009] The purpose of this application is achieved through the following technical solutions:

[0010] A developing cartridge is detachably mounted in a main assembly of an imaging device, wherein the imaging device is provided with a detection device and a grounding terminal, and comprises:

[0011] A developing frame, internally provided with a powder bin for accommodating developer;

[0012] a developing roller rotatably disposed on the developing frame;

[0013] a first driving force receiving member for receiving a driving force from the image forming apparatus to drive the developing roller to rotate;

[0014] The detected device includes a conductive component and a first voltage control member, the conductive component can electrically connect the detection device and the ground terminal, the first voltage control member can receive an external force and move between a first position and a second position, in the first position, the detection device is electrically connected to the ground terminal, and in the second position, the detection device is not electrically connected to the ground terminal.

[0015] Furthermore, the conductive component includes a first electrical connection portion electrically contacting the ground end.

[0016] Furthermore, the developing box can be detachably installed in a drum box having a photosensitive drum, the drum box is provided with a separation force transmission member, and the developing box is provided with a separation force receiving member, the separation force receiving member can receive the force of the separation force transmission member or the separation force applying member to separate the developing roller and the photosensitive drum, before the developing roller and the photosensitive drum are separated, the first electrical connection part has a first deformation amount, and after the developing roller and the photosensitive drum are separated, the first electrical connection part has a second deformation amount, and the first deformation amount is greater than the second deformation amount.

[0017] Further, the separation force receiving member is connected to the first driving force receiving member or to the developing frame.

[0018] Furthermore, the main component includes a main frame and an installation cavity, the installation cavity is used to install the developing box, the main frame has a first upper end wall and a second upper end wall, the second upper end wall is closer to the inside of the installation cavity than the first upper end wall, the first upper end wall is made of conductive material, the second upper end wall is made of non-conductive material, and the grounding end includes the first upper end wall.

[0019] Furthermore, the first upper end wall is provided with a plurality of labels, a first gap is defined between the labels and the second upper end wall, a second gap is defined between the plurality of labels, and the first electrical connection portion is in electrical contact with the first gap and / or the second gap.

[0020] Furthermore, the developing box also includes a storage unit, the storage unit includes a grounding terminal, the grounding terminal can be electrically connected to the contact pin of the imaging device, the first electrical connection part can be electrically connected to the grounding terminal and / or the contact pin; the grounding end includes the grounding terminal and / or the contact pin.

[0021] Furthermore, the main component includes a main frame and an installation cavity, the installation cavity is used to install the developing box, the installation cavity is provided with a first inner wall, and multiple grounding conductive parts of the imaging device are exposed from the first inner wall toward the inner side of the installation cavity; the grounding end includes a grounding conductive part.

[0022] Furthermore, the imaging device is further provided with an openable and closable door cover, the door cover is provided with a second inner side wall that can be grounded, and the grounding end includes the second inner side wall.

[0023] Furthermore, the conductive component includes a first conductive member, a second conductive member, a third conductive member and a fourth conductive member, the first conductive member is capable of receiving power from the imaging device, the second conductive member is electrically connected to the first conductive member, the third conductive member is electrically connected to the second conductive member and is used to connect the fourth conductive member, and the fourth conductive member is capable of being electrically connected to the ground terminal.

[0024] Furthermore, at least a portion of the third conductive component is located at the second end portion of the developing box.

[0025] Furthermore, the first conductive member, the second conductive member, the third conductive member and the fourth conductive member are provided separately or at least two are integrally formed.

[0026] Furthermore, at least a portion of the second conductive member extends between the first end portion and the second end portion of the developer box.

[0027] Furthermore, the second conductive component includes at least one of the developing roller, the developing roller shaft, the powder feeding roller, and the powder discharge knife.

[0028] Furthermore, the first voltage control member can be rotatably connected directly or indirectly to the developing frame, and the first voltage control member includes a second main body, a first driving force receiving part and a first driving part, the first driving force receiving part is arranged on the second main body and is used to receive the driving force; the first driving part is arranged on the second main body and can drive the third conductive member so that the third conductive member is electrically contacted with the fourth conductive member.

[0029] Furthermore, at least one of the first conductive member, the second conductive member, the third conductive member and the fourth conductive member has a separately provided conductive component.

[0030] Further, the third conductive member is configured to be located on the first end cover of the developing box or the inner side of the developing frame; and / or

[0031] The third conductive member further has a bent portion so as to be able to bypass the first end cover of the developing cartridge or the blocking structure on the developing frame.

[0032] Furthermore, the developing cartridge further includes a deceleration mechanism disposed at a first end portion of the developing cartridge, the deceleration mechanism including at least a first transmission member and a second transmission member, the first transmission member including a third gear portion and a fourth gear portion, the second transmission member including a fifth gear portion and a sixth gear portion, the fourth gear portion meshing with the first gear portion of the first driving force receiving member, the third gear portion meshing with the fifth gear portion, and the sixth gear portion meshing with the first driving force receiving portion of the first voltage control member; wherein,

[0033] The diameter of the third gear portion is smaller than the diameter of the fourth gear portion; and / or

[0034] the third gear portion has a smaller diameter than the first gear portion of the first driving force receiving member and the second gear portion of the first driving force receiving member; and / or

[0035] The diameter of the fifth gear portion is greater than the diameter of the sixth gear portion.

[0036] Furthermore, the detected device also includes a power cut-off mechanism, and the power cut-off mechanism includes a first tooth-missing portion provided on the second main body portion of the first voltage control component.

[0037] Furthermore, the first voltage control component includes a first driving portion, and the first driving portion is provided with an arc-shaped driving surface.

[0038] Furthermore, in the longitudinal direction of the developing cartridge, the first voltage control member and the storage unit at least partially overlap.

[0039] Furthermore, at least a portion of the third conductive member and / or the fourth conductive member is movable, and the first voltage control member is capable of driving the third conductive member and / or the fourth conductive member so that the third conductive member and the fourth conductive member can switch between an electrically connected state and a non-electrically connected state.

[0040] Furthermore, the first electrical connection portion is arranged on the fourth conductive component, the first electrical connection portion is arranged on the first end portion of the developing box or the first end cover of the developing box, and the first electrical connection portion can slide or swing or rotate in the front and rear directions of the developing box.

[0041] Furthermore, the first electrical connection portion is configured to be able to move between a third position and a fourth position under the action of an external force; wherein, in the third position, the first electrical connection portion protrudes relative to the developing frame and is able to be electrically connected to the grounding end; in the fourth position, the first electrical connection portion is retracted relative to the third position.

[0042] Furthermore, the detected device further includes a first restoring member, and the first restoring member is used to force the first electrical connecting portion to move from the third position to the fourth position.

[0043] Furthermore, the third conductive member is a first reset member, and the third conductive member includes a first connecting end, a second connecting end, and an elastic portion, the first connecting end is electrically connected to the second conductive member, the second connecting end is electrically connected to the fourth conductive member, and the elastic portion connects the first connecting end and the second connecting end; wherein,

[0044] The elastic portion can be stretched when the first electrical connection portion moves from the fourth position to the third position, and can be elastically restored to return the first electrical connection portion in the third position to the fourth position.

[0045] Furthermore, the first end cover of the developing cartridge covers at least a portion of the fourth conductive member, the first end cover includes an opening and a receiving cavity, the opening is provided on the rear side of the first end cover and faces the rear of the developing cartridge, and the first electrical connection portion can be exposed outward from the opening; wherein,

[0046] When the first electrical connection portion is in the third position, at least a portion of the first electrical connection portion is located outside the opening; when the first electrical connection portion is in the fourth position, the first electrical connection portion is located inside the opening.

[0047] Furthermore, the developing box also includes a movable part that supports at least a portion of the fourth conductive member or the first electrical connection portion, and the movable part is arranged on the developing frame or the first end cover, and the movable part can move relative to the developing frame or the first end cover.

[0048] Furthermore, the movable part includes a connecting portion, a first accommodating portion, a force receiving portion and a force applying portion, the connecting portion is used to be slidably connected to the connected portion of the first end cover, the first accommodating portion can accommodate at least part of the fourth conductive component, and the first electrical connection portion can extend from the opening of the first accommodating portion, the force receiving portion is used to receive the force of the first voltage control component so that the movable part can slide, the force receiving portion extends in a direction close to the developing roller, and the extended end of the force receiving portion is provided with a force-bearing surface, the force-bearing surface is an inclined surface, the force-bearing surface faces the lower side of the developing box and the front side of the developing box, and the force applying portion is used to apply a force to the fourth conductive component so that the first electrical connection portion moves from the third position to the fourth position.

[0049] Furthermore, at least one of the connecting portion and the connected portion is a slider, and the other is a sliding groove that cooperates with the slider.

[0050] Furthermore, the imaging device is provided with a plurality of the developing cartridges, each of the developing cartridges has at least one first electrical connection portion, and the plurality of first electrical connection portions protrude from the developing frame by different amounts.

[0051] Furthermore, the first electrical connection portion is provided with an anti-slip portion.

[0052] Furthermore, the driving force is transmitted to the first voltage control member through a second driving force receiving member provided in the drum box.

[0053] Furthermore, the first voltage control member includes a first driving portion, and the developing box also includes a reset mechanism, the reset mechanism includes a first indicator position set on the first voltage control member and a second indicator position set on the first end cover of the developing box, the first indicator position includes a first surface set on the first driving portion, and the second indicator position includes a second surface set on the upper side of the first end cover, wherein, when the first surface and the second surface are flush, the first voltage control member is in an initial position, and the detected device is in an initial state when it is not detected.

[0054] Furthermore, the detection device includes a detection unit capable of forming a conductive circuit, a power supply, and a switch component, the switch component is movable between a closed position and an open position, and the conductive component is capable of electrically connecting the switch component and the ground terminal.

[0055] Furthermore, the conductive component and the switch member switch between an electrically connected state and a non-electrically connected state.

[0056] Furthermore, the developing box also includes a force-applying portion, which is arranged on the first conductive component or separately from the first conductive component. The force-applying portion can apply a force to the switch component when the developing box is installed to the imaging device to move the switch component from an initial position to a closed position.

[0057] The developing box with the above structure has a simpler structure and reduces the probability of carbon powder being attached to the photosensitive drum during the cleaning operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] FIG1 is a schematic diagram of the internal circuit of the detection device when the switch member of the present application is in the disconnected position (initial position);

[0059] FIG2 is a schematic diagram of the internal circuit of the detection device when the switch member of the present application is in the closed position;

[0060] FIG3 is a schematic diagram of the internal circuit of the detection device when the switch member of the present application is in the off position;

[0061] FIG4 is a schematic structural diagram of a developing cartridge installed in an imaging device according to Example 1 of the present application;

[0062] FIG5a is a simplified structural diagram of the imaging device according to Example 1 of the present application;

[0063] FIG5 b is a schematic structural diagram of a switch member and a swing lever according to Example 1 of the present application;

[0064] 6 is a schematic structural diagram of the developing cartridge of Example 1 of the present application when installed in the drum cartridge;

[0065] 7 is a schematic structural diagram of another angle when the developing cartridge of Example 1 of the present application is installed in the drum cartridge;

[0066] FIG8 is a schematic structural diagram of a developing cartridge according to Example 1 of the present application;

[0067] FIG9 is a schematic diagram of a partial structure of one end of the developing cartridge of Example 1 of the present application;

[0068] FIG10 is a schematic diagram of a partial structure of the other end of the developing cartridge of Example 1 of the present application;

[0069] FIG11 is a schematic structural diagram of the developing cartridge of Example 1 of the present application from another angle;

[0070] 12 is a schematic diagram of the internal circuit of the detection device when the developing cartridge is not installed in the imaging device according to Example 1 of the present application;

[0071] 13 is a schematic diagram of a circuit formed between a detection device and a detected device when the developing cartridge of Example 1 of the present application is installed in an imaging device;

[0072] 14 is a schematic diagram of a circuit when the developing cartridge of Example 1 of the present application is installed in the imaging device and the detection device and the ground terminal are connected;

[0073] 15 is a schematic structural diagram of the developing cartridge of Example 2 of the present application when the imaging device is installed;

[0074] 16 is a schematic structural diagram of the developing cartridge of Example 3 of the present application when not installed to the imaging device;

[0075] 17 is a schematic structural diagram of the developing cartridge of Example 3 of the present application when installed to the imaging device;

[0076] Figure 18 is a schematic structural diagram of a developing cartridge according to Example 4 of the present application;

[0077] FIG19 is a schematic diagram of a hidden portion of the developing cartridge structure according to Example 4 of the present application;

[0078] 20 is a schematic diagram of the internal circuit of the detection device when the developing cartridge is not installed in the imaging device according to Example 4 of the present application;

[0079] 21 is a schematic diagram of a circuit formed between a detection device and a detected device when the developing cartridge of Example 4 of the present application is installed in an imaging device;

[0080] 22 is a schematic diagram of a circuit when the developing cartridge of Example 4 of the present application is installed in the imaging device and the detection device and the ground terminal are connected;

[0081] Figure 23 is a schematic structural diagram of a developing cartridge according to Example 5 of the present application;

[0082] FIG24 is a schematic diagram of a partial structure of one end of a developing cartridge according to Example 5 of the present application;

[0083] Figure 25 is a schematic diagram of the partial structure of the other end of the developing cartridge of Example 5 of the present application;

[0084] FIG26 is a schematic structural diagram of the hidden portion of the developing cartridge according to Example 5 of the present application;

[0085] 27 is a schematic diagram of the internal circuit of the detection device when the developing cartridge is not installed in the imaging device according to Example 5 of the present application;

[0086] 28 is a schematic diagram of a circuit formed between a detection device and a detected device when the developing cartridge of Example 5 of the present application is installed in an imaging device;

[0087] 29 is a schematic diagram of a circuit when the developing cartridge of Example 5 of the present application is installed in the imaging device and the detection device and the ground terminal are connected;

[0088] Figure 30 is a schematic structural diagram of a developing cartridge according to Example 6 of the present application;

[0089] FIG31 is a schematic structural diagram of the developing cartridge of Example 6 of the present application from another angle;

[0090] FIG32 is a schematic diagram of a partial structural decomposition of a developing cartridge according to Example 6 of the present application;

[0091] Figure 33 is a schematic diagram of the overall structure of the developing cartridge of Example 7 of the present application;

[0092] FIG34 is a schematic diagram of a partial structural decomposition of a developing cartridge according to Example 7 of the present application;

[0093] 35 is a schematic structural diagram of the assembled state of the first end cover, the movable member, the third conductive member and the fourth conductive member of the developing cartridge of Example 7 of the present application;

[0094] 36 is a schematic structural diagram of the first end cover, the movable member, the third conductive member, and the fourth conductive member of the developing cartridge in a disassembled state according to Example 7 of the present application;

[0095] FIG37 is a schematic diagram of a partial structure of one end of a developing cartridge according to Example 8 of the present application;

[0096] FIG38 is a schematic diagram of the partial structure of the third conductive member and the fourth conductive member of Example 8 of the present application;

[0097] Figure 39 is a schematic diagram of the partial structure of the third conductive component and the fourth conductive component of a modified example of Example 8 of the present application. DETAILED DESCRIPTION

[0098] The present application is further described below with reference to the accompanying drawings and embodiments.

[0099] Example 1

[0100] As shown in Figures 1 to 14, this embodiment provides an imaging device P, which includes a main component P1, a door cover P2, a detection device 50 and a separation force applying member (not shown in the figures), wherein the main component P1 is provided with an installation cavity P3 and a main frame P4, the installation cavity P3 is used to install the developing box 10, the installation cavity P3 has a first inner wall P31, and a plurality of grounding conductive members P311 are exposed from the inner wall toward the inside of the installation cavity P3.

[0101] The main frame P4 surrounds the mounting cavity P3, and at least a portion of the main frame P4 is made of a conductive material. The main frame P4 has a conductive and grounded first upper end wall P41 and a non-conductive second upper end wall P42. The second upper end wall P42 is closer to the inside of the mounting cavity P3 than the first upper end wall P41. The first upper end wall P41 is made of a conductive metal material, while the second upper end wall P42 is made of a non-conductive resin. The second upper end wall P42 includes a first surface P43 and a second surface P44. The first surface P43 and the second surface P44 form a height difference, and the second surface P44 is further away from the first upper end wall P41 than the first surface P43. A door P2, which opens and closes the mounting cavity P3, is rotatably mounted on the main frame P4 and has a conductive and grounded second inner side wall P21.

[0102] In some embodiments, a label P47 is attached to the first upper end wall P41 to record information such as the installation, operation, and use of the developer cartridge. A first gap P471 is formed between the labels P47, and a second gap P472 is formed between the labels P47 and the second upper end P42.

[0103] The detection device 50 includes a detection unit 501, a power supply 502, a switch component 503, and a processor (not shown). The detection unit 501, the power supply 502, and the switch component 503 can be electrically connected to form a conductive circuit. The switch component 503 is used to control the on and off of the circuit. The detection unit 501 can detect changes in electrical signals according to the on and off of the circuit, thereby transmitting different electrical signals to the processor to determine basic information of the developing box.

[0104] In some embodiments, the switch member 503 can be omitted, and the detection unit is electrically connected to a conductive component of the developer box (such as the detected device to be described below), so that the voltage change of the detected device affects the electrical signal of the detection unit, so that the processor can judge the basic information of the developer box based on different electrical signals.

[0105] In other embodiments, the detection unit may be a capacitive sensor, a pressure sensor, a photoelectric sensor, an electromagnetic sensor, or the like.

[0106] In this embodiment, the switch member 503 is made of a conductive material and is configured as a movable member having a closed position and an open position. In this embodiment, at least a portion of the switch member is disposed on the swing lever 504, and the switch member 503 can move between the closed position and the open position as the swing lever 504 swings. As shown in FIG1 , in the open position (which can also be regarded as the initial position), the switch member 503 is in a state where the circuit is not conducting; in the closed position (as shown in FIG2 ), the switch member 503 closes the circuit, the circuit is conducted, and the detection unit 501 can detect the electrical signal. A separation force applying member (not shown in the figure) is disposed in the main assembly P1 and can apply a force to the developer cartridge 10.

[0107] As shown in Figures 4 to 6, the developer cartridge 10 is removably mounted in a drum cartridge 20 provided with a photosensitive drum 201, and the drum cartridge 20 is removably mounted in the main assembly P1 of the above-mentioned image forming apparatus P. For ease of description, the direction substantially parallel to the direction in which the drum cartridge 20 is mounted in the electrophotographic image forming apparatus P is referred to as the front-to-back direction, the side on which the photosensitive drum 201 is located is referred to as the front side, and the side opposite to the photosensitive drum 201 is referred to as the rear side; the direction parallel to the longitudinal direction of the drum cartridge 20 is referred to as the left-to-right direction, wherein the side receiving driving force from the electronic image forming apparatus P is referred to as the left side, and the side opposite to the left side is referred to as the right side; and the direction perpendicular to the front-to-back direction and the left-to-right direction is referred to as the up-down direction.

[0108] As shown in Figures 6-8, the drum cartridge 20 includes a drum frame 202, a photosensitive drum 201, a second driving force receiving member 203, a charging member 204, a first electrode 205, a separating force transmitting member 206, a pressing member, and a locking member 207. The drum frame 202 is provided with a mounting portion for mounting the developer cartridge 10, and the photosensitive drum 201 is rotatably mounted on the drum frame 202. The second driving force receiving member 203 is located on one side of the drum cartridge 20 and is used to receive driving force from the imaging device P and can directly or indirectly drive the photosensitive drum 201 to rotate. The charging member 204 is used to charge the photosensitive drum 201, and the first electrode 205 can receive a first electric power from the imaging device P and transmit it to the charging member 204. The separating force transmitting member 206 is provided on the drum frame 202 and can move in response to the force applied by the separating force applying member, thereby transmitting the separating force to the developer cartridge 10. In this embodiment, the separating force transmitting member 206 is configured as a rotating member. The urging member can apply an urging force to the developing cartridge 10 so that the developing roller 13 and the photosensitive drum 201 provided on the developing cartridge 10 come into contact with each other. The locking member 207 is used to lock the developing cartridge 10.

[0109] As shown in FIG. 7 to FIG. 11 , the developing cartridge 10 includes a developing frame 11 , a first driving force receiving member 12 , a developing roller 13 and a storage unit 14 . Some developing cartridges 10 are further provided with at least one of a powder feeding roller 15 and a stirring member 16 .

[0110] Along the longitudinal direction of the developer cartridge 10, the developer cartridge 10 has a first end 101 and a second end 102 opposite the first end 101. The developer frame 11 is provided with a powder hopper for storing developer. The developer roller 13 includes a developer layer 131 and a developer roller shaft 132. The developer layer 131 is wrapped around the developer roller shaft 132. Both the developer roller shaft 132 and the developer layer 131 are electrically conductive. The developer roller 13 is rotatably disposed on the front side of the developer frame 11, exposed from the front side of the developer frame 11, and, when installed in the imaging device P, opposite the photosensitive drum 201 to enable development. The storage unit 14 is used to store information such as the specifications and model of the developer cartridge 10. It includes a substrate 141, a memory, and electrical contacts. The substrate 141 has a front side and a back side opposite the front side. The electrical contacts and memory are both disposed on the substrate 141, with the electrical contacts disposed on the front side and the memory disposed on the back side. There are multiple (two or more) electrical contacts, including at least one grounding terminal 142 , which can be electrically connected to the imaging device P to achieve grounding. In this embodiment, the storage unit 14 is disposed at the first end 101 of the developing cartridge 10 .

[0111] The powder feed roller 15 is rotatably supported on the developing frame 11. It faces the developing roller 13 and can deliver developer to the developing roller 13. A stirring member 16 is used to stir the developer contained in the powder hopper. The first driving force receiving member 12 is used to receive driving force from the imaging device P, which directly or indirectly drives the developing roller 13 and the powder feed roller 15 to rotate. Preferably, the first driving force receiving member 12 is disposed at the first end 101 of the developing cartridge 10.

[0112] The first driving force receiving member 12 includes a first force receiving portion 121, a first main body 122, a first gear portion 123, and a second gear portion 124. The first force receiving portion 121 is disposed on the first main body 122 and is capable of engaging with a driving force output member of the imaging device P and receiving driving force. The first gear portion 123 and the second gear portion 124 are connected to the first main body 122 and are capable of transmitting driving force. The first gear portion 123 and the second gear portion 124 can be integrally formed with the first main body 122 or can be movably connected. Preferably, the diameter of the first main body 122 is smaller than that of the first gear portion 123, which is smaller than that of the second gear portion 124. The first gear portion 123 is further away from the developing frame 11 than the second gear portion 124. The storage unit 14 can be disposed at the first end 101, the second end 102, or a position between the first end 101 and the second end 102. In this embodiment, the developing cartridge 10 is further provided with a first end cover 103 . The first end cover 103 is located at the first end portion 101 of the developing cartridge 10 . The first end cover 103 is connected to the developing frame 11 to at least partially cover the first driving force receiving member 12 .

[0113] The developer cartridge 10 of this embodiment further includes a pressure-receiving member 17, a separating force receiving member 18, and a locked member 19. The pressure-receiving member 17 is capable of receiving the force of the pressing member so that the developing roller 13 and the photosensitive drum 201 are brought close to or in contact with each other. The separating force receiving member 18 is used to receive the force from the separating force transmitting member 206 / separating force applying member so that the developing roller 13 and the photosensitive drum 201 are separated from each other.

[0114] The pressure-receiving member 17 is disposed on the developer frame 11 and is preferably integrally formed with the developer frame 11. When the developer cartridge 10 is mounted on the drum cartridge 20, the pressing member abuts against the pressure-receiving member 17 and applies a force to the pressure-receiving member 17 from the rear to the front. More preferably, the pressure-receiving member 17 is located between the two ends of the developer cartridge 10. A separation force receiving member 18 is disposed at one end of the developer cartridge 10. When the imaging device P performs a cleaning operation, the separation force transmitting member 206 / separation force applying member applies a force to the separation force receiving member 18, causing the developer cartridge 10 to move rearward, thereby separating the developer roller 13 and the photosensitive drum 201. Preferably, the separation force receiving member 18 is disposed on the developer frame 11 and protrudes from the developer frame 11.

[0115] In some embodiments, the separation force receiving member 18 is disposed on the first main body 122 of the first driving force receiving member 12. The separation force receiving member 18 and the first main body 122 may be integrally formed or provided separately. A locked member 19 is disposed on the rear side of the developer cartridge 10. When the developer cartridge 10 is installed in the drum cartridge 20, the locked member 19 engages with the locking member 207, thereby locking the developer cartridge 10. Specifically, the locked member 19 is disposed on the first end cover 103. Preferably, the locking member 19 is disposed adjacent to the pressure-receiving component 17.

[0116] As shown in FIG. 7 to FIG. 11 , the developing cartridge 10 of this embodiment further includes a detected device 70 , which can be detected by the detecting device 50 of the imaging apparatus P. As shown in FIG.

[0117] The detected device 70 includes a conductive component 72 and a first voltage control member 71. When mounted on the imaging device P, the conductive component 72 can be electrically connected to the detection device 50 / switch member 503 of the imaging device P and the ground terminal K of the imaging device P. The first voltage control member 71 is used to control the on / off electrical connection between the detection device 50 and the ground terminal K, thereby changing the voltage value detected by the detection unit 501. Specifically, the conductive component 72 is provided with a first electrical connection portion 73, which is used to electrically contact the ground terminal K. The ground terminal K can be at least one of the ground terminal 142 of the storage unit 14, an imaging device contact pin in contact with the ground terminal 142, the inner wall of the door cover P2, the first upper end wall P41, and the grounding conductive member P311.

[0118] In this embodiment, the first electrical connection portion 73 is preferably in contact with the first upper end wall P41 ; in some embodiments, the first electrical connection portion 73 is in contact with the first gap P471 or the second gap P472 .

[0119] The conductive component 72 includes a first conductive component 74, a second conductive component 75, a third conductive component 76 and a fourth conductive component 77. The first conductive component 74, the second conductive component 75, the third conductive component 76 and the fourth conductive component 77 can be electrically connected in sequence. The first conductive component 74, the second conductive component 75, the third conductive component 76 and the fourth conductive component 77 can be set separately or formed as one piece.

[0120] In this embodiment, at least a portion of the first conductive member 74 is disposed at the first end 101 of the developer cartridge 10 and is capable of receiving power from the imaging device P. Specifically, it is capable of contacting the switch member 503 of the imaging device P to receive power. A second conductive member 75 is electrically connected to the first conductive member 74 and at least a portion thereof is located between the first end 101 and the second end 102 of the developer cartridge 10. The second conductive member 75 may be at least one of the developer roller shaft 132, the developer roller 13, the powder feed roller 15, or the powder discharge blade 25. In this embodiment, the developer roller shaft 132 is used as the second conductive member 75. A third conductive member 76 is electrically connected to the second conductive member and at least a portion thereof is located at the first end 101 of the developer cartridge 10. A fourth conductive member 77 is selectively electrically connected to the third conductive member 76 and is capable of being electrically connected to the ground terminal K; preferably, it is electrically connected to the first upper end wall P41. At least a portion of the fourth conductive member 77 is located at the second end 102 of the developer cartridge 10.

[0121] The conductive assembly 72 can switch between an electrically connected state and a non-electrically connected state. Specifically, the third conductive member 76 and the fourth conductive member 77 can switch between an electrically connected state and a non-electrically connected state. At least a portion (movable end) of the third conductive member 76 and / or the fourth conductive member 77 is movable to enable the third conductive member 76 and the fourth conductive member 77 to switch between a contact state and a non-contact state. Preferably, the fourth conductive member 77 includes a first electrical connection portion 73 in contact with the ground terminal K, and the first electrical connection portion 73 is elastically deformable; when the developing box 10 is installed on the drum box 20, the first electrical connection portion 73 abuts the ground terminal K; in some embodiments, when the developing box 10 is moved backward by the force of the separation force transmission member 206 / separation force applying member, the first electrical connection portion 73 remains in contact with the ground terminal K, effectively improving the stability of the contact between the first electrical connection portion 73 and the ground terminal K; in some embodiments, when the developing box 10 is not affected by the force of the separation force transmission member 206 / separation force applying member, the first electrical connection portion 73 has a first deformation amount, and when the developing box is affected by the force of the separation force transmission member 206 / separation force applying member and moves backward, the first electrical connection portion 73 has a second deformation amount, and the first deformation amount is greater than the second deformation amount.

[0122] Preferably, the first voltage control member 71 is configured to be able to move between a first position and a second position. In the first position, the first voltage control member 71 drives the third conductive member 76 and / or the fourth conductive member 77, so that the third conductive member 76 and the fourth conductive member 77 are in an electrically connected state; in the second position, the first voltage control member 71 does not drive the third conductive member 76 and / or the fourth conductive member 77, and the third conductive member 76 and the fourth conductive member 77 are in a non-electrically connected state.

[0123] The first voltage control member 71 is configured to be able to move in response to the movement of the first driving force receiving member 12, and it can directly or indirectly drive at least a portion of the third conductive member 76 and / or the fourth conductive member 77, so that the third conductive member 76 and the fourth conductive member 77 can switch between a contact state and a non-contact state.

[0124] The first voltage control member 71 is rotatably connected to the developing frame 11, either directly or indirectly. In this embodiment, the first voltage control member 71 is rotatably mounted on the first end cover 103 of the developing cartridge 10. The first voltage control member 71 is configured as a rotating component and includes a second main body 710, a first driving force receiving portion 711, and a first driving portion 712. The first driving force receiving portion 711 is provided on the second main body 710 and is configured to engage with the driving force receiving unit and receive driving force. The first driving portion 712 is provided on the second main body 710 and is capable of driving the third conductive member 76, thereby electrically contacting the third conductive member 76 with the fourth conductive member 77.

[0125] In the present embodiment, the first voltage control member 71 at least partially overlaps the storage unit 14 in the longitudinal direction of the developing cartridge (ie, the left-right direction).

[0126] In this embodiment, the developer cartridge 10 further includes a force applying portion 105 that, when the developer cartridge 10 is mounted on the imaging device P, can apply a force to the switch member 503 of the imaging device P, causing the switch member 503 to move from an initial position to a closed position. In this embodiment, the force applying portion 105 is provided on the first conductive member 74. Alternatively, the force applying portion 105 can be provided separately from the first conductive member 74.

[0127] In this embodiment, the developing box 10 also includes a deceleration mechanism, which is arranged at the first end 101 of the developing box 10, and includes at least a first transmission member 81 and a second transmission member 82. The first transmission member 81 includes a third gear portion 811 and a fourth gear portion 812. The diameter of the third gear portion 811 is smaller than the diameter of the fourth gear portion 812. The third gear portion 811 is closer to the developing frame 11 than the fourth gear portion 812.

[0128] The second transmission member 82 includes a fifth gear portion 821 and a sixth gear portion 822 . The diameter of the fifth gear portion 821 is larger than that of the sixth gear portion 822 . The fifth gear portion 821 is closer to the developing frame 11 than the sixth gear portion 822 .

[0129] The fourth gear portion 812 is capable of meshing with the first gear portion 123 of the first driving force receiving member 12, the third gear portion 811 is capable of meshing with the fifth gear portion 821 of the second transmission member 82, and the sixth gear portion 822 of the second transmission member 82 is capable of meshing with the first driving force receiving portion 711 of the first voltage control member 71. Preferably, the diameter of the third gear portion 811 is smaller than the diameters of the first gear portion 123 and the second gear portion 124. Preferably, the diameter of the sixth gear portion 822 is smaller than the diameter of the third gear portion 811. Preferably, the diameter of the first driving force receiving portion 711 of the first voltage control member 71 is smaller than the diameter of the sixth gear portion 822.

[0130] Because the diameter of the third gear portion 811 is smaller than that of the fifth gear portion 821, when the third gear portion 811 transmits driving force to the fifth gear portion 821, the rotational angular velocity of the second transmission member 82 is lower than that of the first transmission member 81. Because the diameter of the sixth gear portion 822 is smaller than that of the first driving force receiving portion 711, when the second transmission member 82 transmits driving force to the first voltage control member 71, the rotational angular velocity of the first voltage control member 71 is lower than that of the second transmission member 82. Thus, when driving force is transmitted from the first driving force receiving member 12 to the first voltage control member 71, the rotational speed is reduced, and the rotational speed of the first voltage control member 71 is lower than that of the first driving force receiving member 12. This effectively controls the rotational speed of the first voltage control member 71, enabling the first voltage control member 71 to effectively control the on / off state of the circuit, thereby improving detection accuracy.

[0131] In this embodiment, the detected device 70 further includes a power cut-off mechanism for cutting off the driving force transmitted to the first voltage control member 71. Specifically, the power cut-off mechanism can be a first toothless portion provided on the second main body portion 710 of the first voltage control member 71. When the first toothless portion rotates to face the sixth gear portion 822 of the second transmission member 82, the transmission of the driving force is cut off, the first voltage control member 71 no longer rotates, and the detection is completed. In some embodiments, the first voltage control member 71 is configured to move along its rotation axis. When the detection is completed, the first voltage control member 71 is configured to move along its rotation axis so that the sixth gear portion 822 of the second transmission member 82 can disengage from the first driving force receiving portion 711 of the first voltage control member 71.

[0132] The developer cartridge 10 of this embodiment is further provided with a powder filling port 84, which is provided at the second end portion 102 of the developer cartridge 10. The powder filling port 84 does not overlap with a second end cover 104 provided at the second end portion 102 of the developer cartridge. The powder filling port 84 is provided at the second end portion 102 of the developer cartridge 10 to facilitate the filling of toner. Since the first end portion 101 of the developer cartridge 10 is provided with a large number of transmission components, if the powder filling port 84 is provided at the first end portion 101, it would be detrimental to the filling of toner.

[0133] In the developing box 10 of this embodiment, when the developing box 10 is installed to the imaging device P, the first conductive member 74 / force-applying portion 105 abuts against the switch member 503 of the imaging device P, and the switch member 503 moves from the initial position to the closed position (as shown in Figure 13), the first conductive member 74 is electrically connected to the switch member 503, the fourth conductive member 77 is electrically connected to the ground terminal K, and the third conductive member 76 and the fourth conductive member 77 are not in contact with each other. At this time, the detection unit 501 detects a voltage value of U1.

[0134] The process of detecting the developing box is described in conjunction with Figures 12 to 14.

[0135] When the developer cartridge 10 begins to be inspected, the first driving force receiving member 12 receives the driving force and rotates, and the first voltage control member 71 also receives the driving force and rotates. As the first voltage control member 71 rotates, the first driving portion 712 drives the first force receiving portion 771 of the fourth conductive member 77 into electrical contact with the third conductive member 76. At this point, the voltage value of the detection device 50 is U2. The values ​​of U2 and U1 differ, and the detection unit 501 detects and records the voltage change.

[0136] In this embodiment, the voltage control component is equipped with multiple first drive units 712. The third conductive member 76 and the fourth conductive member 77 can switch between an electrically connected state and a non-electrically connected state multiple times. The detection unit 501 detects multiple changes in the voltage value, thereby identifying information such as the capacity and specifications of the developer cartridge 10. When the detection is completed, the driving force of the first voltage control member 71 is cut off and it no longer receives driving force. The first drive unit 712 no longer applies force to the fourth conductive member 77, and the third conductive member 76 and the fourth conductive member 77 are in a non-electrically connected state. The absolute value of U1 is greater than the absolute value of U2, and the value of U2 is preferably 0.

[0137] In some embodiments, an impedance element is further provided in the conductive component.

[0138] In some embodiments, the first conductive member 74 and the second conductive member 75 may be metal wires, metal conductive sheets, conductive rubber, conductive resin, etc.

[0139] In some embodiments, a mainspring or a spring that accumulates elastic potential energy is provided to transmit the driving force to the first voltage control member 71 without receiving the driving force from the first driving force receiving member 12 .

[0140] In some embodiments, the driving force is transmitted to the first voltage control member 71 through the second driving force receiving member 203 provided in the drum cartridge.

[0141] In some embodiments, the second conductive member may be an independently provided conductive piece.

[0142] The developing box 10 with the above structure provides a new detection structure, thereby improving the detection accuracy and simplifying the structure.

[0143] The developing box 10 having the above structure does not need to be provided with a mechanism for turning the switch member / swing lever, thereby reducing damage to the swing lever; in addition, it also reduces the vibration of the developing box caused by turning, reduces noise, and improves the user experience.

[0144] Example 2

[0145] This embodiment is an improvement made on the basis of embodiment 1. The same parts are not described in detail here. Only the main differences are described below. The same parts in the description can refer to the drawings of the above embodiment.

[0146] As shown in Figure 15, the conductive component of the developer cartridge 10 of this embodiment is configured to be electrically connected to the second inner sidewall P21 of the door cover P2 of the imaging device P. Specifically, a first electrical connection portion 73a extends from the rear end of the developer cartridge 10. When the door cover P2 is closed, the second inner sidewall P21 of the door cover P2 can be electrically connected to the first electrical connection portion 73a. In this embodiment, the first electrical connection portion 73a extends outside the first end cover 103.

[0147] Preferably, the first electrical connection portion 73a is configured to be elastically deformable to enhance the stability of the contact with the door cover P2.

[0148] In some embodiments, the first electrical connection portion 73 a is configured to be movable relative to the developing frame 11 to avoid interference with the door cover P2 .

[0149] In some embodiments, the image forming apparatus P may be provided with a plurality of developing cartridges, each developing cartridge having at least one first electrical connection portion 73 a , and the plurality of first electrical connection portions 73 a may protrude from the developing frame by different amounts.

[0150] The developer box 10 of the above structure is in contact with the door cover P2 and has greater stability. In addition, compared with setting the first electrical connection part 73a to be in contact with the first upper end wall P41, the problem of poor contact caused by contact with the label P47 is avoided.

[0151] The ground terminal K may be at least one of the ground terminal 142 of the storage unit 14, an imaging device contact pin contacting the ground terminal 142, an inner wall of the door cover P2, the first upper end wall P41, and a ground conductive member P311.

[0152] Example 3

[0153] This embodiment is a further improvement on the basis of embodiment 1 or 2. The same parts are not described in detail here. Only the main differences are described below. The same parts in this specification can refer to the drawings of the above embodiments.

[0154] As shown in Figures 16 and 17 , the first electrical connection portion 73b is configured to be movable between a third position and a fourth position under the action of an external force. In the third position, the first electrical connection portion 73b protrudes relative to the developing frame 11 and can be electrically connected to the ground terminal K. In the fourth position, the first electrical connection portion 73b is retracted relative to the third position, preferably relative to the developing frame 11. The movement of the first electrical connection portion 73b can be sliding, swinging, or rotating.

[0155] In this embodiment, the first electrical connection portion 73 b further includes a second force receiving portion 731 . The second force receiving portion 731 can move by receiving the force of the imaging device P, specifically, by receiving the force of the second surface P44 .

[0156] Preferably, the first electrical connection portion 73b is movable in the front-to-rear direction of the developer cartridge 10. As shown in FIG16 , when the developer cartridge 10 is not mounted on the imaging device P, the first electrical connection portion 73b is located in the third position, and the first electrical connection portion 73b does not protrude from the rear end of the developer cartridge 10. As shown in FIG17 , when the developer cartridge 10 is mounted on the imaging device P, the first electrical connection portion 73b abuts against the second surface P44 of the second upper end wall P42 of the imaging device P, and a portion of the first electrical connection portion 73b protrudes from the rear end of the developer cartridge 10. When the door cover P2 is closed, the first electrical connection portion 73b is electrically connected to the second inner side wall P21 of the door cover P2 to achieve grounding.

[0157] With the developer cartridge 10 having such a structure, when the developer cartridge 10 is packaged, the first electrical connection portion 73 b can be retracted into the developer frame 11 to avoid damage during packaging / transportation.

[0158] In some embodiments, the second force receiving portion 731 can be driven directly or indirectly by the first driving force receiving member 12 such that the first electrical connection portion 73 moves between the third position and the fourth position.

[0159] The ground terminal K may be at least one of the ground terminal 142 of the storage unit 14, an imaging device contact pin contacting the ground terminal 142, an inner wall of the door cover P2, the first upper end wall P41, and a ground conductive member P311.

[0160] Example 4

[0161] This embodiment is a further improvement based on embodiment 1, embodiment 2 or embodiment 3. The same parts are not described in detail here. Only the main differences are introduced below. The same parts in the description can refer to the drawings of the above embodiments.

[0162] As shown in Figures 18 to 22, in this embodiment, the first voltage control component 71 controls the conductive component 72c to selectively contact the ground terminal K, that is, the first electrical connection portion 73c of the conductive component 72c and the ground terminal can switch between an electrical contact state and a non-electrical contact state.

[0163] The conductive assembly 72c of this embodiment includes a first conductive member 74c, a second conductive member 75c, a third conductive member 76c, and a fourth conductive member 77c. The first conductive member 74c is electrically connected to the second conductive member 75c, and the first conductive member 74c can be electrically connected to the switch member 503 when installed in the imaging device P. The second conductive member 75c extends from the first end 101 of the developer cartridge 10 to the second end 102 of the developer cartridge 10. The second conductive member 75c is electrically connected to the third conductive member 76c, and the third conductive member 76c is electrically connected to the fourth conductive member 77c. The fourth conductive member 77c can be electrically connected to the ground terminal K. Preferably, the third conductive member 76c and the fourth conductive member 77c are integrally formed or fixedly connected.

[0164] The first electrical connection portion 73c of the fourth conductive member 77c is configured to move between a third position and a fourth position. In the third position, the first electrical connection portion 73c protrudes relative to the developing frame 11 or the first end cap 103, enabling electrical connection to the ground terminal. In the fourth position, the first electrical connection portion 73c retracts relative to the third position, preferably relative to the developing frame 11. The movement of the first electrical connection portion 73c may be sliding, swinging, or rotating. In this embodiment, the first electrical connection portion 73c is slidably disposed on the first end portion 101 / first end cap 103. The first end cap 103 is provided with a receiving cavity 731c that accommodates at least a portion of the first electrical connection portion 73c. ​​The first electrical connection portion 73c is provided with a third force receiving portion 732c. During rotation of the first voltage control member 71, the first driving portion 712 can apply a force to the third force receiving portion 732c of the first electrical connection portion 73c, causing the first electrical connection portion 73c to move from the fourth position to the third position, thereby achieving electrical connection to the ground terminal K. Preferably, the first electrical connection portion 73 c is configured to move in the front-rear direction of the developing cartridge 10 .

[0165] The detected device also includes a first reset member 733c, which is used to force the first electrical connection part 73c to move from the third position to the fourth position. For example, when the first driving part 712 no longer applies a force to the force-bearing part of the first electrical connection part 73c, the first electrical connection part 73c can move from the third position to the fourth position under the action of the force of the first reset member 733c. Preferably, the third conductive member 76c acts as the first reset member 733c, and the third conductive member 76c is configured as a torsion spring structure. When the first electrical connection part 73c is able to move from the fourth position to the third position, it accumulates elastic potential energy, and when the first driving part 712 no longer applies a force to the force-bearing part of the first electrical connection part 73c, it releases the elastic potential energy, so that the first electrical connection part 73c can move from the third position to the fourth position.

[0166] 20-22 , when the developer cartridge 10 is not installed in the imaging device P, as shown in FIG21 , the switch member 503 is in the disconnected position, where the circuit is not connected. When the developer cartridge 10 is installed in the imaging device P, the swing lever 504 receives the force of the force-applying portion 105 , causing the switch member 503 to move from the disconnected position to the closed position. At this point, the detected device is disconnected from the ground terminal K, and the voltage value detected by the detection unit 501 is U1.

[0167] When the developer cartridge 10 begins testing, as shown in Figure 22 , the first drive unit 712 drives the first electrical connection portion 73c from the fourth position to the third position, causing the first electrical connection portion 73c to contact the ground terminal. At this point, the voltage detected by the detection unit 501 is U2. When the first drive unit 712 stops driving the first electrical connection portion 73c, the first electrical connection portion 73c moves from the third position to the fourth position under the action of the first reset member 733c, disconnecting the first electrical connection portion 73c from the ground terminal K. At this point, the voltage detected by the detection unit 501 is U1. U1 and U2 differ, and the detection unit 501 detects the change in the voltage signal, thereby determining information about the developer cartridge 10.

[0168] With the developer cartridge 10 having the above structure, the electrical connection of the detected component is more stable.

[0169] The ground terminal K may be at least one of the ground terminal 142 of the storage unit 14, an imaging device contact pin contacting the ground terminal 142, an inner wall of the door cover P2, the first upper end wall P41, and a ground conductive member P311.

[0170] Example 5

[0171] This embodiment is a further improvement based on embodiment 1, embodiment 2, embodiment 3 or embodiment 4. The same parts are not repeated here. Only the main differences are introduced below. The same parts in the description can refer to the drawings of the above embodiments.

[0172] As shown in Figures 23 to 29, in this embodiment, the first voltage control component 71d controls the conductive component 72d to selectively contact the switch component 503, that is, the first conductive component 74d and the ground terminal K can switch between an electrical contact state and a non-electrical contact state.

[0173] In this embodiment, the first conductive member 74d includes an electrical contact portion 741d capable of electrically contacting the switch member 503. In this embodiment, the first conductive member 74d includes a first sub-member 742d and a second sub-member 743d, which are separately provided. The first sub-member 742d is provided with a first sub-gear portion 744d and an electrical contact portion 741d, and the second sub-member 743d is provided with a second sub-gear portion 745d. The first sub-gear portion 744d and the second sub-gear portion 745d are meshed with each other. The first sub-member 742d and the second sub-member 743d are both made of conductive material.

[0174] The second conductive member 75d is electrically connected to the first conductive member 74d. Specifically, the second conductive member 75d is connected to the second sub-member 743d. Preferably, the second conductive member 75d is configured as a stirring member shaft.

[0175] The third conductive member 76d is electrically connected to the second conductive member 75d. Specifically, in this embodiment, the third conductive member 76d is replaced by the conductive second transmission member 82. The third conductive member 76d is provided with a fifth gear portion 821 and a sixth gear portion 822. The fifth gear portion 821 is used to receive the driving force from the first driving force receiving member 12 / the first transmission member 81, and the sixth gear portion 822 is used to transmit the driving force. The fourth conductive member 77d is electrically connected to the third conductive member 76d. Specifically, the fourth conductive member 77d includes a third sub-member 771d and a first electrical connection portion 73d. In this embodiment, the third sub-member 771d is provided with a third sub-gear portion 772d and a notch portion 773d. The third sub-gear portion 772d is used to mesh with the sixth gear portion 822 and receive the driving force. The first electrical connection portion 73d is configured to be movable between a third position and a fourth position. In the third position, the first electrical connection portion 73d can be electrically connected to the ground terminal K. In the fourth position, the first electrical connection portion 73d cannot be electrically connected to the ground terminal K.

[0176] In this embodiment, the first electrical connection portion 73d is capable of translating between a third position and a fourth position. The first electrical connection portion 73d is configured as a rod, one end of which abuts the end surface of the third sub-component 771d and the other end is configured to contact the ground terminal K. In this embodiment, the first electrical connection portion 73d is slidably disposed on the first end cap 103.

[0177] The device under inspection also includes a first elastic member 79d, which forces the first electrical connection portion 73d to abut against the end face of the third sub-component 771d. One end of the first elastic member 79d is connected to the first electrical connection portion 73d, and the other end abuts against the first end cap 103. When the first electrical connection portion 73d falls into the notch 773d, the force of the first elastic member 79d causes the first electrical connection portion 73d to move from the third position to the fourth position. In the third position, the first electrical connection portion 73d is able to contact the ground terminal K. In the fourth position, the first electrical connection portion 73d retracts, disconnecting from the ground terminal K.

[0178] The first voltage control member 71d is provided at the second end portion 102 of the developer cartridge 10 and is provided with a non-electrical contact portion 711d. The non-electrical contact portion 711d is located between adjacent electrical contact portions 741d of the first conductive member 74d, so that the electrical contact portions 741d and the non-electrical contact portions 711d are spaced apart. When the switch member 503 contacts the electrical contact portion 741d, the conductive component 72d is electrically connected to the switch member 503. When the switch member 503 contacts the non-electrical contact portion 711d, the conductive component 72d is electrically disconnected from the switch member 503. A plurality of electrical contact portions 741d and non-electrical contact portions 711d may be provided and spaced apart.

[0179] 27-29 , when the developer cartridge 10 is not installed in the imaging device P, as shown in FIG28 , the switch member 503 is in the disconnected position, where the circuit is not connected. When the developer cartridge 10 is installed in the imaging device P, the swing lever is acted upon by the force-applying portion 105 , causing the switch member 503 to move from the disconnected position to the closed position. At this time, the first electrical connection portion 73 d is in the third position, electrically contacting the ground terminal K. The switch member 503 contacts the non-electrical contact portion 711 d of the first voltage control member 71 d (at this time, the first voltage control member 71 d is in the first position). The conductive component 72 d is not electrically connected to the switch member 503, and the voltage value detected by the detection unit 501 is U1.

[0180] When the developer cartridge 10 begins detection, as shown in Figure 29, the first driving force receiving member 12 receives the driving force and transmits it to the first conductive member 74d. As the first conductive member 74d and the first voltage control member 71d rotate, the electrical contact portion 741d of the first conductive member 74d contacts the switch member 503 (the first voltage control member 71d is now in the second position), and the conductive component 72d is electrically connected to the switch member 503. The detection device is now grounded, and the voltage detected by the detection unit 501 is U2. As the first conductive member 74d and the first voltage control member 71d rotate, the non-electrical contact portion 711d again contacts the switch member 503, and the conductive component 72d is no longer electrically connected to the detection device. The voltage detected by the detection unit 501 is U1. Similarly, the electrical contact portion 741d and the non-electrical contact portion 711d alternately connect to the switch member 503. The detection unit 501 detects alternating voltage changes, thereby determining information about the developer cartridge 10.

[0181] With the developer cartridge 10 having the above structure, the electrical connection of the detected component is more stable.

[0182] The ground terminal K may be at least one of the ground terminal 142 of the storage unit 14, an imaging device contact pin contacting the ground terminal 142, an inner wall of the door cover P2, the first upper end wall P41, and a ground conductive member P311.

[0183] Example 6

[0184] This embodiment is a further improvement on the above embodiments 1-5, and the same parts are not repeated here. Only the main differences are introduced below. The same parts in the description can refer to the drawings of the above embodiments.

[0185] As shown in Figures 30-32, the conductive component of this embodiment is electrically connected to the ground terminal 142 of the storage unit 14 to achieve grounding. Specifically, the fourth conductive component 77e is electrically connected to the ground terminal 142 of the storage unit 14, and is electrically connected to the contact pin of the imaging device P through the ground terminal 142 / fourth conductive component 77e to achieve grounding.

[0186] As shown in the figure, this embodiment further includes a second voltage control member 9, which is used to control the voltage and current of the developing roller 13. Preferably, the second voltage control member 9 controls the voltage and current of the circuit by controlling the on and off of the circuit. The second voltage control member 9 can be moved between a fifth position and a sixth position by receiving an external force. In the fifth position, the developing roller is electrically connected to the ground terminal, and in the sixth position, the developing roller and the ground terminal are not electrically connected. In this embodiment, the second conductive member is the developing roller 13.

[0187] The first conductive member 74e is electrically connected to the developing roller 13, which is electrically connected to the third conductive member 76e, which is electrically connected to the fourth conductive member 77e. The first conductive member 74e can be electrically connected to a supply electrode of the imaging device, which is used to supply power to the developing roller. The supply electrode can be a switch member 503. In some embodiments, the supply electrode can be a separate component.

[0188] Preferably, the second voltage control member 9 is configured as a movable part capable of moving between a fifth position and a sixth position. In the fifth position, the second voltage control member 9 drives the third conductive member 76e and / or the fourth conductive member 77e, so that the third conductive member 76e and the fourth conductive member 77e are in an electrically connected state; in the sixth position, the first voltage control member 71d does not drive the third conductive member 76e and / or the fourth conductive member 77e, and the third conductive member 76e and the fourth conductive member 77e are in a non-electrically connected state.

[0189] The second voltage control member 9 is configured to be able to move in response to the movement of the separation force applying member of the imaging device P / the separation force transmitting member 206 of the drum box, and it can directly or indirectly drive at least a part of the third conductive member 76e and / or the fourth conductive member 77e, so that the third conductive member 76e and the fourth conductive member 77e can switch between a contact state and a non-contact state; or in other words, the third conductive member 76e can switch between a contact state and a non-contact state with the fourth conductive member 77e.

[0190] The second voltage control member 9 is rotatably connected directly or indirectly to the developing frame 11. In this embodiment, the second voltage control member 9 is rotatably mounted on the first end portion 101 of the developing cartridge 10. The second voltage control member 9 is configured as a rotating component and includes a third main body 90, a second force receiving portion 92, and a second driving portion 91. The second force receiving portion 92 is provided on the third main body 90 and is configured to receive the force of the separation force applying member or separation force transmitting member 206, thereby rotating the second voltage control member 9. The second driving portion 91 is provided on the third main body 90 and is capable of driving at least a portion of the third conductive member 76e and / or the fourth conductive member 77e, thereby bringing the third conductive member 76e into electrical contact with the fourth conductive member 77e.

[0191] In the developing box 10 of this embodiment, during the imaging operation, the first conductive member 74e is electrically connected to the switch member 503 and receives power. At this time, the developing roller 13 is applied with a voltage value of U3, and the ground terminal 142 of the storage unit 14 is electrically connected to the contact pin of the imaging device P; there is no contact between the third conductive member 76e and the fourth conductive member 77e.

[0192] When the developer cartridge 10 performs a cleaning operation on the photosensitive drum 201, the separating force applying member or separating force transmitting member 206 applies a force to the second voltage control member 9, causing it to rotate. As the second voltage control member 9 rotates, the second driving unit 91 drives the third conductive member 76e into electrical contact with the fourth conductive member 77e. At this point, the voltage value of the developer roller 13 is U4. The values ​​of U3 and U4 differ. When the voltage value is U3, toner on the developer roller 13 is transferred to the surface of the photosensitive drum 201. However, when the voltage value is U4, toner on the developer roller 13 is not transferred to the photosensitive drum 201. This facilitates cleaning of the photosensitive drum 201, preventing toner from attaching to the photosensitive drum 201 during the cleaning process. The absolute value of U3 is greater than the absolute value of U4, and the value of U4 is preferably 0.

[0193] When cleaning is completed, the separation force applying member or the separation force transmitting member 206 no longer applies force to the second voltage control member 9, and the second voltage control member 9 rotates in the opposite direction under the action of the force of the second elastic reset member, and the third conductive member 76e and the fourth conductive member 77e are in a non-electrically connected state.

[0194] The developing box 10 with the above structure can reduce the risk of carbon dust being attached to the photosensitive drum 201 during cleaning, and the cleaning effect is improved. In addition, the developing box of this structure does not need to be provided with a complicated separating mechanism, and does not need to separate the photosensitive drum and the developing roller.

[0195] In some embodiments, the conductive component 72e is configured to be electrically connected to at least one of the first upper end wall P41, the second upper end wall P42, and the inner side wall of the door cover P2 of the imaging device P to achieve grounding.

[0196] In some embodiments, the first voltage control component 71d and the second voltage control component 9 may be a component for adjusting the resistance of a circuit, and the voltage / current value of the circuit is controlled by changing the resistance.

[0197] In the above embodiments and their variations, driving may include direct driving and indirect driving, and connection may include direct connection and indirect connection.

[0198] In some embodiments, the developing cartridge does not have the first voltage control component, but is provided with only the second voltage control member 9 .

[0199] In some embodiments, the developing cartridge has the first voltage control member, but the second voltage control member 9 is not provided.

[0200] In some embodiments, the second voltage control member 9 can change the voltage of the developing roller by controlling the electrical contact or non-electrical contact between the conductive component and at least one of the first upper end wall P41, the second upper end wall P42 and the inner wall of the door cover P2 of the imaging device P; specifically, the voltage of the developing roller can be changed by controlling the contact or non-contact between the fourth conductive member 77e and the above-mentioned ground terminal.

[0201] This embodiment can be combined with Embodiment 1 to Embodiment 5, and the second voltage control component can be combined with Embodiment 1 to Embodiment 5.

[0202] The electrical connection in this application can be a direct electrical connection or an indirect electrical connection.

[0203] Example 7

[0204] This embodiment is a further improvement on the basis of the embodiment 4. The same parts are not described in detail here. Only the main differences are described below. The same parts in the description can refer to the drawings of the above embodiment.

[0205] As shown in Figures 1 to 5b and Figures 33 to 36, in this embodiment, the conductive component can be electrically connected to the switch component, and the conductive component can switch between an electrically connected state and an electrically disconnected state with the ground terminal. Specifically, the first voltage control component 71f controls the conductive component to selectively contact the ground terminal K, that is, the first electrical connection portion 73f of the conductive component can switch between an electrically connected state and an electrically disconnected state with the ground terminal K.

[0206] The conductive assembly of this embodiment includes a first conductive member 74f, a second conductive member 75f, a third conductive member 76f, and a fourth conductive member 77f, wherein the first conductive member 74f is electrically connected to the second conductive member 75f, and the first conductive member 74f can be electrically connected to the switch member 503 when mounted on the imaging device P. In this embodiment, the first conductive member 74f is made of a conductive metal piece.

[0207] The second conductive member 75f extends from the first end 101 of the developer cartridge 10 to the second end 102 of the developer cartridge 10. The second conductive member 75f is electrically connected to the third conductive member 76f. The second conductive member 75f includes at least one of the developer roller shaft 132, the developer roller 13, the powder feed roller 15, and the powder discharge blade 25, or includes at least a conductive component independent of the developer roller 13, the powder feed roller 15, and the powder discharge blade 25. In this embodiment, the powder discharge blade 25 is used as the second conductive member 75f.

[0208] The third conductive member 76f is located at the first end portion 101 of the developing box 10, and is electrically connected to the fourth conductive member 77f. The fourth conductive member 77f can be electrically connected to the ground terminal K. Preferably, the third conductive member 76f and the fourth conductive member 77f are integrally formed or fixedly connected.

[0209] In some embodiments, the third conductive member 76f is located inside the first end cap 103f or the developing frame 11, that is, it does not protrude from the first end cap 103f or the developing frame 11 to the outside of the developing cartridge. This structural design helps prevent the third conductive member 76f from being damaged by interference from external components. More specifically, the third conductive member 76f further has multiple bends to enable it to bypass blocking structures on the first end cap 103f or the developing frame 11.

[0210] The first electrical connection portion 73f of the fourth conductive member 77f is configured to be movable between a third position and a fourth position. In the third position, the first electrical connection portion 73f protrudes relative to the developing frame 11 or the first end cap 103f. In this third position, the first electrical connection portion 73f is capable of electrical contact with the ground terminal K. In the fourth position, the first electrical connection portion 73f is retracted relative to the third position, preferably relative to the developing frame 11 or the first end cap 103f. The first electrical connection portion 73f is configured to be elastically deformable to achieve elastic electrical contact with the ground terminal K (door cover), thereby improving contact stability.

[0211] In this embodiment, the third conductive member 76f can function as the first reset member 733f, forcing the first electrical connection portion 73f to move from the third position to the fourth position. In other words, the third conductive member 76f can be considered the first reset member 733f. The third conductive member 76f includes a first connection end 761, a second connection end 762, and an elastic portion 763. The first connection end 761 is electrically connected to the second conductive member 75f, and the second connection end 762 is electrically connected to the fourth conductive member 77f. The elastic portion 763 connects the first connection end 761 and the second connection end 762. The elastic portion 763 can be stretched when the first electrical connection portion 73f moves from the fourth position to the third position, and can elastically restore the first electrical connection portion 73f from the third position to the fourth position. Specifically, the elastic portion 763 is stretched when the first electrical connection portion 73f moves from the fourth position to the third position under the drive of the first voltage control member 71f. When the first electrical connection portion 73f is not driven by the first voltage control member 71f (which may be driven directly or indirectly), the elastic portion 763 elastically recovers, so that the first electrical connection portion 73f returns from the third position to the fourth position.

[0212] When viewed along the front-to-back direction of the developing box 10, the first electrical connection portion 73f at least partially overlaps with the first voltage control member 71f; along the left-right direction of the developing box 10, the first electrical connection portion 73f is located between the second gear portion 124 and the electrical contacts of the storage unit 148; preferably, the first electrical connection portion 73f is located between the second gear portion 124 and the first force receiving portion 121.

[0213] In this embodiment, the first end cover 103f covers at least a portion of the fourth conductive member 77f. The first end cover 103f includes an opening 1031 and a receiving cavity 1032. The opening 1031 is provided on the rear side of the first end cover 103f and faces the rear of the developer cartridge 10. The first electrical connection portion 73f is exposed outwardly through the opening 1031. When the first electrical connection portion 73f is in the third position, at least a portion of the first electrical connection portion 73f is located outside the opening 1031. When the first electrical connection portion 73f is in the fourth position, the first electrical connection portion 73f is located inside the opening 1031. The receiving cavity 1032 is located between the storage unit 148 and the developer frame 11 and is used to accommodate the fourth conductive member 77f.

[0214] With this structural design, the first end cap 103f covers at least a portion of the fourth conductive member 77f, thereby facilitating protection of the fourth conductive member 77f by the first end cap 103f. Furthermore, when the developer cartridge 10 is packaged, the first electrical connection portion 73f of the first conductive member 74f is in the third position, which prevents the first electrical connection portion 73f from piercing the packaging, thereby reducing packaging difficulty and cost.

[0215] The developer cartridge 10 further includes a movable member 9f that supports at least a portion of the fourth conductive member 77f or the first electrical connection portion 73f. The movable member 9f is movable relative to the developer frame 11 of the developer cartridge 10. In this embodiment, the movable member 9f is configured to slide in a front-to-rear direction relative to the developer frame 11. Preferably, the movable member 9f is slidably disposed on the first end cover 103f. In some embodiments, the movable member 9f may also be disposed on the developer frame 11. The movable member 9f may also move in a left-right direction or a vertical direction, as long as it can switch between a contact state and a non-contact state with the ground terminal K.

[0216] The movable part 9f includes a connecting part 91f, a first accommodating part 92f, a force receiving part 93f and a force applying part 94f, wherein the connecting part 91f is used to be slidably connected with the connected part 1033 of the first end cover 103f. Specifically, at least one of the connecting part 91f and the connected part 1033 is a slider, and the other is a sliding groove cooperating with the slider.

[0217] The first accommodating portion 92f can accommodate at least a portion of the fourth conductive member 77f, and the first electrical connection portion 73f can extend from the opening of the first accommodating portion 92f. The force receiving portion 93f is used to receive the force of the first voltage control member 71f so that the movable part 9f can slide. The force receiving portion 93f extends in a direction close to the developing roller 13, and a force-bearing surface 931f is provided at the extended end thereof. The force-bearing surface 931f is an inclined surface, and the force-bearing surface 931f faces the downward side and the front side. The force-applying portion 94f is used to apply a force to the fourth conductive member 77f so that the first electrical connection portion 73f moves from the third position to the fourth position; specifically, the fourth conductive member abuts against the force-applying portion 94f.

[0218] In this embodiment, the first driving portion 712 of the first voltage control member 71f is configured with an arcuate driving surface 7121, which cooperates with the force-bearing surface 931f to cause the movable member 9f to slide. The arcuate driving surface 7121 cooperates with the force-bearing surface 931f, thereby making the movable member 9f drive smoother.

[0219] In this embodiment, the developer cartridge 10 further includes a reset mechanism that facilitates the user to restore the detected device to its initial state when it is not detected. In this embodiment, the reset mechanism includes a first indicator position 871f provided on the first voltage control member 71f and a second indicator position 872f provided on the first end cover 103f. When the first indicator position 871f and the second indicator position 872f are aligned, the first voltage control member 71f is in its initial position, and the detected device is in its initial state when it is not detected. Specifically, the first indicator position 871f is a first surface provided on the first drive portion 712, and the second indicator position 872f is a second surface provided on the upper side of the end cover. When the first surface and the second surface are flush, the first voltage control member 71f is in its initial position, and the detected device is in its initial state when it is not detected.

[0220] 20 , when the developer cartridge 10 is not installed in the imaging device P, the switch member 503 is in the disconnected position, where the circuit is not connected. Referring to FIG21 , when the developer cartridge 10 is installed in the imaging device P, the swing lever 504 is acted upon by the force-applying portion 94, causing the switch member 503 to move from the disconnected position to the closed position. At this point, the detected device is disconnected from the ground terminal K, and the voltage value detected by the detection unit is U1.

[0221] Combined with Figure 22, when the developer box 10 begins to be detected, the first driving part 712 pushes the movable part 9f to slide backward, and the force-applying part 94f of the movable part 9f applies a force to the fourth conductive component 77f, so that the first electrical connection part 73f moves backward from the fourth position to the third position, and the first electrical connection part 73f contacts the ground terminal K. At this time, the elastic part 763 is stretched, and the voltage value detected by the detection unit is U2.

[0222] When the first driving part 712 no longer pushes the movable part 9f, the fourth conductive member 77f is acted upon by the elastic restoring force of the elastic part 763, and the first electrical connection part 73f moves from the third position to the fourth position. At the same time, the movable part 9f moves forward under the force of the fourth conductive member 77f, and the first electrical connection part 73f is disconnected from the ground terminal K. At this time, the voltage value detected by the detection unit is U1. The values ​​of U1 and U2 are different, and the detection unit detects the change in the voltage signal. When the first driving part 712 drives the movable part 9f again, the first electrical connection part 73f and the ground terminal K are switched between the contact and non-contact states again, and the detection unit detects the change in the voltage value to determine the information of the developer box 10. When the user needs to reset the detected device, he only needs to rotate the first voltage control member 71f to align the first surface and the second surface.

[0223] The ground terminal K may be at least one of a ground terminal K of the storage unit, an imaging device contact pin in contact with the ground terminal K, an inner wall of the door cover P2, a device side wall, a first upper end wall P41, and a grounding conductive member P311.

[0224] In some embodiments, at least two of the first conductive member 74f, the second conductive member 75f, the third conductive member 76f, and the fourth conductive member 77f are integrally formed. When the first conductive member 74f, the second conductive member 75f, the third conductive member 76f, and the fourth conductive member 77f are integrally formed, the conductive component can be a conductive wire, a conductive metal wire, or a conductive resin.

[0225] In some embodiments, at least one of the first conductive member 74f, the second conductive member 75f, the third conductive member 76f, and the fourth conductive member 77f has a plurality of separately disposed conductive components.

[0226] In some embodiments, the conductive component supplies the received power to at least one of the developing roller, the powder blade, and the powder feeding roller; that is, the conductive component is electrically connected to at least one of the developing roller, the powder blade, and the powder feeding roller.

[0227] In some embodiments, the conductive assembly is not electrically connected to at least one of the developer roller, the powder discharge blade, and the powder feed roller; the developer roller is electrically connected to the switch member 503 or the power supply component of the imaging device via an electrical connection component independent of the conductive assembly. The electrical connection component can be in electrical contact with the switch member 503 and not in contact with the conductive assembly.

[0228] In some embodiments, when the developing cartridge detection is completed, the fourth conductive member 77f abuts against the first voltage control member 71f to prevent the first voltage control member 71f from further rotating or reversing and engaging with the transmission member (eg, the second transmission member 82) again.

[0229] Example 8

[0230] This embodiment is a further improvement on the technical solutions of the aforementioned embodiments 1 to 7, and the same parts thereof will not be described in detail. The same components in the specification may be described by referring to some of the drawings of the aforementioned embodiments.

[0231] During the implementation of the technical solution, it was found through experiments that due to the elastic contact between the first electrical connection part and the ground terminal k, when the first electrical connection part moves from a position not in contact with the ground terminal k to a position in contact with the ground terminal k (for example, the first electrical connection part moves from the fourth position to the third position), the first electrical connection part will slide or jump relative to the ground terminal k, thereby causing unnecessary fluctuations in the detection electrical signal, or poor contact, resulting in detection failure.

[0232] As shown in Figures 37 and 38, in order to solve the above technical problems, in this embodiment, the first electrical connection part 73g is provided with an anti-slip part 731g, which can prevent the first electrical connection part 73g from sliding or jumping relative to the ground terminal k when contacting the ground terminal k, so that the electrical contact between the first electrical connection part 73g and the ground terminal k is more stable, avoiding unnecessary fluctuations in the detection electrical signal or poor electrical contact resulting in detection failure.

[0233] The first electrical connection portion 73g includes an anti-slip portion 731g and a mounting portion 732g. The mounting portion 732g is used to mount the anti-slip portion 731g. One end of the anti-slip portion 731g forms an assembly end 733g, through which the anti-slip portion 731g can be assembled to the mounting portion 732g. In this embodiment, the assembly end 733g is formed with a locking structure 734g, which engages with the mounting portion 732g to prevent the anti-slip portion 731g from falling off.

[0234] The mounting portion 732g is formed at one end of the fourth conductive member 77, and at least a portion of the anti-slip portion 731g is made of an elastic conductive material, such as an elastic conductive rubber. The elastic conductive rubber will not slip or bounce when it abuts the grounding end k (such as the inner wall of the door cover, the side wall of the device, the first upper end wall, and the grounding conductive member). The fourth conductive member 77 is configured as a spring. When viewed along the axial direction of the fourth conductive member 77, the anti-slip portion 731g covers the mounting portion 732g. In this embodiment, by providing the anti-slip portion 731g, the contact area between the first electrical connection portion 73g and the grounding end k can also be increased, thereby improving the stability of the electrical contact; in addition, the use of elastic conductive rubber as the anti-slip portion 731g can avoid puncturing the packaging bag when packaging the developer cartridge.

[0235] In some embodiments, anti-slip stripes are formed on the end surface of the anti-slip portion 731g to increase friction resistance.

[0236] In some embodiments, the anti-slip portion 731g is made of other anti-slip materials such as conductive silicone, as long as it can increase the friction when in contact with the ground terminal k.

[0237] Figure 39 shows the deformed structure of the anti-slip part 731g in a modified example of this embodiment. The assembly end 733g of the anti-slip part 731g forms a chamber structure. The assembly end 733g can be sleeved on the outside of the installation part 732g through the chamber structure to prevent the anti-slip part 731g from falling off.

[0238] The above embodiments can be combined with each other and also fall within the protection scope of this application.

[0239] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. To facilitate the distinction between different components, this application introduces terms such as "first" and "second", where the terms "first" and "second" are not to be understood as limiting their quantity. For example, the driving member described in this application has a second gear portion, but this does not mean that the driving member must have a first gear portion and a third gear portion. According to the description, the components described by "first" and "second" can be one or more; the terms "above", "upper side", "below", and "lower side" are based on the description in the accompanying drawings and are not specific limitations on their orientation. Although this application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A developing cartridge, detachably mounted in a main assembly of an imaging device, the imaging device being provided with a detection device and a grounding terminal, the developing cartridge comprising: A developing frame, wherein a powder bin for containing a developer is provided inside; A developing roller rotatably disposed on the developing frame; a first driving force receiving member for receiving a driving force from the image forming device to drive the developing roller to rotate; Characterized in that the developing box also includes: The detected device comprises a conductive component and a first voltage control member, wherein the conductive component can electrically connect the detection device and a ground terminal, and the first voltage control member can receive an external force and move between a first position and a second position, wherein in the first position, the detection device is electrically connected to the ground terminal, and in the second position, the detection device is not electrically connected to the ground terminal.

2. The developing cartridge according to claim 1, characterized in that: The conductive component includes a first electrical connection portion electrically contacting the ground terminal.

3. The developing cartridge according to claim 2, characterized in that: The developing box is detachably installed in a drum box having a photosensitive drum, the drum box is provided with a separation force transmission member, and the developing box is provided with a separation force receiving member, the separation force receiving member can receive the force of the separation force transmission member or the separation force application member to separate the developing roller and the photosensitive drum, before the developing roller and the photosensitive drum are separated, the first electrical connection part has a first deformation amount, and after the developing roller and the photosensitive drum are separated, the first electrical connection part has a second deformation amount, and the first deformation amount is greater than the second deformation amount.

4. The developing cartridge according to claim 3, characterized in that: The separation force receiving member is connected to the first driving force receiving member or to the developing frame.

5. The developing cartridge according to claim 2, characterized in that: The main component includes a main frame and an installation cavity, the installation cavity is used to install the developing box, the main frame has a first upper end wall and a second upper end wall, the second upper end wall is closer to the inner side of the installation cavity than the first upper end wall, the first upper end wall is made of conductive material, the second upper end wall is made of non-conductive material, and the grounding end includes the first upper end wall.

6. The developing cartridge according to claim 5, characterized in that: The first upper end wall is provided with a plurality of labels, a first gap is defined between the labels and the second upper end wall, a second gap is defined between the plurality of labels, and the first electrical connection portion is in electrical contact with the first gap and / or the second gap.

7. The developing cartridge according to claim 2, characterized in that: The developing box also includes a storage unit, which includes a grounding terminal, which can be electrically connected to a contact pin of the imaging device, and the first electrical connection part can be electrically connected to the grounding terminal and / or the contact pin; the grounding end includes the grounding terminal and / or the contact pin.

8. The developing cartridge according to claim 1, wherein: The main component includes a main frame and an installation cavity, the installation cavity is used to install the developing box, the installation cavity is provided with a first inner wall, and multiple grounding conductive parts of the imaging device are exposed from the first inner wall toward the inner side of the installation cavity; the grounding end includes a grounding conductive part.

9. The developing cartridge according to claim 1, wherein: The imaging device is further provided with a door cover which can be opened and closed, and the door cover is provided with a second inner side wall which can be grounded, and the grounding end includes the second inner side wall.

10. The developing cartridge according to claim 2, characterized in that: The conductive component includes a first conductive member, a second conductive member, a third conductive member and a fourth conductive member, the first conductive member can receive power from the imaging device, the second conductive member is electrically connected to the first conductive member, the third conductive member is electrically connected to the second conductive member and is used to connect the fourth conductive member, and the fourth conductive member can be electrically connected to the ground terminal.

11. The developing cartridge according to claim 10, characterized in that: At least a portion of the third conductive member is located at the second end portion of the developing cartridge.

12. The developing cartridge according to claim 10, characterized in that: The first conductive component, the second conductive component, the third conductive component and the fourth conductive component are separately provided or at least two of them are integrally formed.

13. The developing cartridge according to claim 10, characterized in that: At least a portion of the second conductive member extends between the first end and the second end of the developer cartridge.

14. The developing cartridge according to claim 10, characterized in that: The second conductive component includes at least one of the developing roller, the developing roller shaft, the powder feeding roller, and the powder discharge knife.

15. The developing cartridge according to claim 10, characterized in that: The first voltage control member can be rotatably connected directly or indirectly to the developing frame, and the first voltage control member includes a second main body, a first driving force receiving portion and a first driving portion, the first driving force receiving portion is arranged on the second main body and is used to receive the driving force; the first driving portion is arranged on the second main body and can drive the third conductive member so that the third conductive member is in electrical contact with the fourth conductive member.

16. The developing cartridge according to claim 10, characterized in that: At least one of the first conductive member, the second conductive member, the third conductive member, and the fourth conductive member has a conductive component that is separately provided.

17. The developing cartridge according to claim 10, characterized in that: The third conductive member is configured to be located inside the first end cover of the developing box or the developing frame; and / or The third conductive member further has a bending portion so as to be able to bypass the first end cover of the developing box or the blocking structure on the developing frame.

18. The developing cartridge according to claim 1, characterized in that: The developing box further comprises a deceleration mechanism disposed at a first end portion of the developing box, the deceleration mechanism comprising at least a first transmission member and a second transmission member, the first transmission member comprising a third gear portion and a fourth gear portion, the second transmission member comprising a fifth gear portion and a sixth gear portion, the fourth gear portion meshing with the first gear portion of the first driving force receiving member, the third gear portion meshing with the fifth gear portion, the sixth gear portion meshing with the first driving force receiving portion of the first voltage control member; wherein, The diameter of the third gear portion is smaller than the diameter of the fourth gear portion; and / or the third gear portion has a smaller diameter than the first gear portion of the first driving force receiving member and the second gear portion of the first driving force receiving member; and / or The fifth gear portion has a diameter greater than that of the sixth gear portion.

19. The developing cartridge according to claim 1, characterized in that: The detected device further includes a power cutoff mechanism including a first tooth-missing portion provided on the second main body portion of the first voltage control member.

20. The developing cartridge according to claim 1, characterized in that: The first voltage control member includes a first driving portion, and the first driving portion is provided with an arc-shaped driving surface.

21. The developing cartridge according to claim 1, characterized in that: The first voltage control member overlaps at least a portion of the storage unit in a longitudinal direction of the developing cartridge.

22. The developing cartridge according to claim 10, characterized in that: At least a portion of the third conductive member and / or the fourth conductive member is movable, and the first voltage control member is capable of driving the third conductive member and / or the fourth conductive member so that the third conductive member and the fourth conductive member can be switched between an electrically connected state and a non-electrically connected state.

23. The developing cartridge according to claim 10, characterized in that: The first electrical connection portion is disposed on the fourth conductive member, the first electrical connection portion is disposed on the first end portion of the developing box or the first end cover of the developing box, and the first electrical connection portion can slide, swing or rotate in the front-rear direction of the developing box.

24. The developing cartridge according to claim 10, characterized in that: The first electrical connection portion is configured to be able to move between a third position and a fourth position under the action of an external force; wherein, in the third position, the first electrical connection portion protrudes relative to the developing frame and can be electrically connected to the grounding terminal; in the fourth position, the first electrical connection portion is retracted relative to the third position.

25. The developing cartridge according to claim 10, characterized in that: The detected device further includes a first restoring member, and the first restoring member is used for forcing the first electrical connecting portion to move from the third position to the fourth position.

26. The developing cartridge according to claim 25, characterized in that: The third conductive component is a first reset member, and the third conductive component includes a first connection end, a second connection end and an elastic portion, the first connection end is electrically connected to the second conductive component, the second connection end is electrically connected to the fourth conductive component, and the elastic portion connects the first connection end and the second connection end; wherein, The elastic portion can be stretched when the first electrical connection portion moves from the fourth position to the third position, and can be elastically restored to return the first electrical connection portion at the third position to the fourth position.

27. The developing cartridge according to claim 10, characterized in that: The first end cover of the developing box covers at least a portion of the fourth conductive member, the first end cover includes an opening and a receiving cavity, the opening is arranged at the rear side of the first end cover and faces the rear of the developing box, and the first electrical connection portion can be exposed outward from the opening; wherein, When the first electrical connection portion is in the third position, at least a portion of the first electrical connection portion is located outside the opening portion; when the first electrical connection portion is in the fourth position, the first electrical connection portion is located inside the opening portion.

28. The developing cartridge according to claim 10, characterized in that: The developing box further includes a movable part that supports at least a portion of the fourth conductive member or the first electrical connection portion, and the movable part is disposed on the developing frame or the first end cover, and the movable part can move relative to the developing frame or the first end cover.

29. The developing cartridge according to claim 28, characterized in that: The movable part includes a connecting portion, a first accommodating portion, a force receiving portion and a force applying portion, the connecting portion is used to be slidably connected to the connected portion of the first end cover, the first accommodating portion can accommodate at least a portion of the fourth conductive member, and the first electrical connecting portion can extend from the opening of the first accommodating portion, the force receiving portion is used to receive the force of the first voltage control member so that the movable part can slide, the force receiving portion extends in a direction close to the developing roller, and a force-bearing surface is provided at the extended end of the force receiving portion, the force-bearing surface is an inclined surface, and the force-bearing surface faces the lower side of the developing box and the front side of the developing box, and the force applying portion is used to apply a force to the fourth conductive member so that the first electrical connecting portion moves from the third position to the fourth position.

30. The developing cartridge according to claim 29, wherein: At least one of the connecting portion and the connected portion is a slider, and the other is a slide groove matched with the slider.

31. The developing cartridge according to claim 10, characterized in that: The image forming apparatus is provided with a plurality of the developing cartridges, each of the developing cartridges has at least one first electrical connection portion, and the plurality of first electrical connection portions protrude from the developing frame by different amounts.

32. The developing cartridge according to claim 2, characterized in that: The first electrical connection portion is provided with an anti-slip portion.

33. The developing cartridge according to claim 3, characterized in that: The driving force is transmitted to the first voltage control member through a second driving force receiving member provided in the drum.

34. The developing cartridge according to claim 1, characterized in that: The first voltage control member includes a first driving portion, and the developing box also includes a reset mechanism, the reset mechanism includes a first indicator position arranged on the first voltage control member and a second indicator position arranged on the first end cover of the developing box, the first indicator position includes a first surface arranged on the first driving portion, and the second indicator position includes a second surface arranged on the upper side of the first end cover, wherein when the first surface and the second surface are flush, the first voltage control member is in an initial position, and the detected device is in an initial state when it is not detected.

35. The developing box according to any one of claims 1 to 34, characterized in that: The detection device includes a detection unit capable of forming a conductive circuit, a power source, and a switch component, wherein the switch component is movable between a closed position and an open position, and the conductive component is capable of electrically connecting the switch component and the ground terminal.

36. The developing cartridge according to claim 35, characterized in that: The conductive component and the switch member switch between an electrical connection state and a non-electrical connection state.

37. The developing cartridge according to claim 35, characterized in that: The developing box also includes a force applying portion, which is arranged on the first conductive member or separately from the first conductive member. The force applying portion can apply a force to the switch member when the developing box is installed to the imaging device to move the switch member from an initial position to a closed position.

Images