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

Technical Field

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

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

[0003] There is an imaging device such as Figure 1-Figure 3 As shown, the detection device 50 includes a detection unit 501, a power source 502 and a switch member 503. The detection unit 501, the power source 502 and the switch member 503 can be electrically connected to each other to form an electrically conductive circuit, and the switch member 503 is used to control the on and off of the circuit. At least a part of the switch member 503 is made of conductive material, which is configured as a movable part, and can have an initial position, a closed position and an open position; Figure 1 As shown, in the initial position (also referred to as the open position), the switch member 503 is in a state of not conducting the circuit; in the closed position (as Figure 2 As shown), the switch member 503 closes the circuit, the circuit is turned on, and the detection unit 501 can detect the electrical signal; in the disconnected position (as shown Figure 3 As shown in FIG. 5 , the switch member 503 is in a non-conducting circuit state. When the movable member switches between the closed position and the open position, the electrical signal (such as voltage) of the detection unit 501 changes, thereby determining the information of the developing cartridge.

[0004] There is 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 to move between the closed position and the open position, so that the electrical signal of the internal circuit of the detection device changes, so that the developing box is detected. The developing box of this structure needs to be provided with more transmission mechanisms, and its structure is complex and is not conducive to the miniaturization design of the developing box. The developing box of the above structure will generate mechanical collision noise during the detection process, and the user experience is poor.

[0005] In addition, in some developing cartridges, they are usually installed in a drum cartridge provided with a photosensitive drum and used together, and the photosensitive drum often needs to be cleaned. The existing developing cartridges are provided with a separation force receiving member to receive the force of the separation force applying member of the imaging device or the separation force transmitting member of the drum cartridge, so that the developing roller and the photosensitive drum are separated, thereby preventing the carbon powder on the developing roller from adhering to the photosensitive drum during the cleaning process.

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

[0007] The object of the present invention is to provide a developing box to further develop the above technology.

[0008] The purpose of the present invention is achieved through the following technical solutions:

[0009] A developing box 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 the developing box comprises:

[0010] A developing frame, wherein a powder bin for containing a developer is provided inside;

[0011] A developing roller rotatably disposed on the developing frame;

[0012] a first driving force receiving member for receiving a driving force from the image forming device to drive the developing roller to rotate;

[0013] The developing box also includes:

[0014] 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.

[0015] Furthermore, the conductive component includes a first electrical connection portion electrically contacting the ground terminal, 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 component, the separation force receiving component 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 portion has a first deformation amount, and after the developing roller and the photosensitive drum are separated, the first electrical connection portion has a second deformation amount, and the first deformation amount is greater than the second deformation amount.

[0016] 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 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.

[0017] Furthermore, the imaging device is also 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.

[0018] Further, the conductive component includes a first conductive member, a second conductive member, a third conductive member and a fourth conductive member and a first electrical connection portion electrically contacting the ground terminal, 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; wherein,

[0019] The first conductive component, the second conductive component, the third conductive component and the fourth conductive component are separately arranged or at least two are integrally formed; and / or at least one of the first conductive component, the second conductive component, the third conductive component and the fourth conductive component has a separately arranged conductive component.

[0020] 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.

[0021] 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.

[0022] Furthermore, the developing box also includes a deceleration mechanism arranged at the first end of the developing box, and the deceleration mechanism includes at least a first transmission member and a second transmission member, the first transmission member includes a third gear portion and a fourth gear portion, the second transmission member includes a fifth gear portion and a sixth gear portion, the fourth gear portion is meshed with the first gear portion of the first driving force receiving component, the third gear portion is meshed with the fifth gear portion, and the sixth gear portion is meshed with the first driving force receiving portion of the first voltage control component.

[0023] Further, in the longitudinal direction of the developing box, the first voltage control member and the storage unit at least partially overlap.

[0024] Furthermore, the detection device includes a detection unit capable of forming a conductive circuit, a power supply, 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.

[0025] 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

[0026] Figure 1 It is a schematic diagram of the internal circuit of the detection device when the switch member of the present invention is in the disconnected position (initial position);

[0027] Figure 2 is a schematic diagram of the internal circuit of the detection device when the switch member of the present invention is in the closed position;

[0028] Figure 3 It is a schematic diagram of the internal circuit of the detection device when the switch member of the present invention is in the disconnected position;

[0029] Figure 4 is a schematic structural diagram of a developing cartridge when being installed in an imaging device according to Embodiment 1 of the present invention;

[0030] Figure 5a is a simplified structural diagram of an imaging device according to Embodiment 1 of the present invention;

[0031] Figure 5b is a schematic structural diagram of a switch component and a swing lever according to Embodiment 1 of the present invention;

[0032] Figure 6 is a schematic structural diagram of a developing cartridge according to Embodiment 1 of the present invention when installed in a drum cartridge;

[0033] Figure 7 is a schematic structural diagram of another angle when the developing cartridge of Embodiment 1 of the present invention is installed in the drum cartridge;

[0034] Figure 8 is a schematic structural diagram of a developing cartridge according to Embodiment 1 of the present invention;

[0035] Fig. 9 is a partial structural schematic diagram of one end of a developing cartridge according to Embodiment 1 of the present invention;

[0036] Fig.10 is a partial structural schematic diagram of the other end of the developing cartridge of Embodiment 1 of the present invention;

[0037] Fig.11is a schematic structural diagram of the developing cartridge of Embodiment 1 of the present invention from another angle;

[0038] Fig.12 is a schematic diagram of the internal circuit of the detection device when the developing cartridge of Embodiment 1 of the present invention is not installed in the imaging device;

[0039] Fig.13 It is a schematic diagram of a circuit formed between a detection device and a detected device when the developing cartridge of Embodiment 1 of the present invention is installed in an imaging device;

[0040] Fig.14 It is a schematic diagram of a circuit when the developing cartridge of Embodiment 1 of the present invention is installed in an imaging device and the detection device and the grounding terminal are connected;

[0041] Fig.15 is a schematic structural diagram of a developing cartridge according to Embodiment 2 of the present invention when installed in an imaging device;

[0042] Fig.16 is a schematic structural diagram of a developing cartridge according to Embodiment 3 of the present invention when it is not installed in an imaging device;

[0043] Fig.17 is a schematic structural diagram of a developing cartridge according to Embodiment 3 of the present invention when it is installed in an imaging device;

[0044] Fig.18 is a schematic structural diagram of a developing cartridge according to Embodiment 4 of the present invention;

[0045] Fig.19 is a schematic diagram of a developer cartridge after a hidden portion of the structure of Embodiment 4 of the present invention;

[0046] Fig. 20 is a schematic diagram of the internal circuit of the detection device when the developing cartridge of Embodiment 4 of the present invention is not installed in the imaging device;

[0047] Fig.21 is a schematic diagram of a circuit formed between a detection device and a detected device when a developing cartridge according to Embodiment 4 of the present invention is installed in an imaging device;

[0048] Fig. 22 is a schematic diagram of a circuit when the developing cartridge of Embodiment 4 of the present invention is installed in an imaging device and the detection device and the grounding terminal are connected;

[0049] Fig.23 is a schematic structural diagram of a developing cartridge according to Embodiment 5 of the present invention;

[0050] Fig.24 is a partial structural schematic diagram of one end of a developing cartridge according to Embodiment 5 of the present invention;

[0051] Fig.25 is a partial structural schematic diagram of the other end of the developing cartridge of Example 5 of the present invention;

[0052] Fig.26 is a schematic structural diagram of a developer cartridge according to Embodiment 5 of the present invention after a hidden part structure is provided;

[0053] Fig. 27 is a schematic diagram of the internal circuit of the detection device when the developing cartridge of Embodiment 5 of the present invention is not installed in the imaging device;

[0054] Fig.28 is a schematic diagram of a circuit formed between a detection device and a detected device when a developing cartridge according to Embodiment 5 of the present invention is installed in an imaging device;

[0055] Fig.29 is a schematic diagram of a circuit when the developing cartridge of Embodiment 5 of the present invention is installed in an imaging device and the detection device and the grounding terminal are connected;

[0056] Fig.30 is a schematic structural diagram of a developing cartridge according to Embodiment 6 of the present invention;

[0057] Fig.31 is a schematic structural diagram of a developing cartridge according to Embodiment 6 of the present invention from another angle;

[0058] Fig.32 is a partial structural exploded schematic diagram of a developing cartridge according to Embodiment 6 of the present invention;

[0059] Fig.33 is a schematic diagram of the overall structure of a developing cartridge according to Embodiment 7 of the present invention;

[0060] Fig.34 is a partial structural exploded schematic diagram of a developing cartridge according to Embodiment 7 of the present invention;

[0061] Fig.35 1 is a structural schematic diagram of the assembly state of the first end cover, the movable member, the third conductive member and the fourth conductive member of the developing cartridge of Embodiment 7 of the present invention;

[0062] Fig.36 1 is a schematic structural diagram of a first end cover, a movable member, a third conductive member, and a fourth conductive member of a developing cartridge in a disassembled state according to a seventh embodiment of the present invention;

[0063] Fig.37 is a partial structural schematic diagram of one end of a developing cartridge according to Embodiment 8 of the present invention;

[0064] Fig.38 is a partial structural schematic diagram of a third conductive member and a fourth conductive member according to Embodiment 8 of the present invention;

[0065] Fig.39 It is a schematic diagram of the partial structure of the third conductive component and the fourth conductive component of a modified example of embodiment 8 of the present invention. DETAILED DESCRIPTION

[0066] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0067] Example 1

[0068] like Figure 1-Figure 14 As shown, 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 figure), 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 inner side of the installation cavity P3.

[0069] The main frame P4 is surrounded by the installation cavity P3, and at least a part of the main frame P4 is made of conductive material. The main frame P4 has a first upper end wall P41 that is conductive and grounded and a second upper end wall P42 that is non-conductive. The second upper end wall P42 is closer to the inner side of the installation cavity P3 than the first upper end wall P41. The first upper end wall P41 is made of conductive metal material, and the second upper end wall P42 is made of non-conductive resin. The second upper end wall P42 includes a first surface P43 and a second surface P44. A height difference is formed between the first surface P43 and the second surface P44. Compared with the first surface P43, the second surface P44 is farther away from the first upper end wall P41 than the first surface P43. The door cover P2 can open or close the installation cavity P3. It is rotatably mounted on the main frame P4, and the door cover P2 is provided with a second inner side wall P21 that is conductive and grounded.

[0070] In some embodiments, a label P47 is attached to the first upper end wall P41, and such label P47 is used to record information such as installation, operation and use of the developing 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.

[0071] 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-off of the circuit. The detection unit 501 can detect changes in electrical signals according to the on-off of the circuit, thereby transmitting different electrical signals to the processor, thereby determining basic information of the developing box.

[0072] 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 determine the basic information of the developer box based on the different electrical signals.

[0073] In other embodiments, the detection unit may be a capacitive sensor, a pressure sensor, a photoelectric sensor, an electromagnetic sensor, or the like.

[0074] In this embodiment, the switch member 503 is made of a conductive material and is configured as a movable member, which has a closed position and an open position. In this embodiment, at least a portion of the switch member is disposed on the swing rod 504, and the switch member 503 can move between the closed position and the open position as the swing rod 504 swings. Figure 1 As shown, in the open position (also referred to as the initial position), the switch member 503 is in a state of not conducting the circuit; in the closed position (as Figure 2 The switch member 503 closes the circuit, the circuit is turned on, and the detection unit 501 can detect the electrical signal. A separation force applying member (not shown) is provided in the main assembly P1 and can apply a force to the developing cartridge 10.

[0075] like Figure 4-Figure 6 As shown, the developing cartridge 10 is detachably mounted in a drum cartridge 20 provided with a photosensitive drum 201, and the drum cartridge 20 is detachably mounted in the main assembly P1 of the above-mentioned imaging device P. For the convenience of description, the direction roughly parallel to the direction in which the drum cartridge 20 is mounted to the electrophotographic imaging device P is the front-to-back direction, the side where the photosensitive drum 201 is located is the front side, and the side opposite to the photosensitive drum 201 is the rear side; the direction parallel to the longitudinal direction of the drum cartridge 20 is the left-to-right direction, wherein the side receiving the driving force from the electronic imaging device P is the left side, and the side opposite to the left side is the right side; the direction perpendicular to the front-to-back direction and the left-to-right direction is the up-down direction.

[0076] like Figure 6-Figure 8 As shown, 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 separation force transmission member 206, a pressing member and a locking member 207. The drum frame 202 is provided with a mounting portion for mounting the developing cartridge 10, and the photosensitive drum 201 is rotatably mounted on the drum frame 202; the second driving force receiving member 203 is located at one side of the drum cartridge 20, and is used to receive a 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 separation force transmission member 206 is provided on the drum frame 202, and can receive the force of the separation force applying member to move, and can transmit the separation force to the developing cartridge 10; in this embodiment, the separation force transmission member 206 is provided 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.

[0077] like Figure 7-Figure 11 As shown, 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 , and at least one of a powder feeding roller 15 and a stirring member 16 is further provided in some developing cartridges 10 .

[0078] Along the longitudinal direction of the developing box 10, the developing box 10 has a first end 101 and a second end 102 opposite to the first end 101. The developing frame 11 is provided with a powder bin for accommodating a developer. The developing roller 13 includes a developing layer 131 and a developing roller shaft 132, the developing layer 131 is wrapped around the outside of the developing roller shaft 132, and the developing roller shaft 132 and the developing layer 131 are both conductive. Along the direction in which the developing box 10 is installed to the imaging device P, the developing roller 13 is rotatably arranged at the front side of the developing frame 11, exposed from the front side of the developing frame 11 and opposite to the photosensitive drum 201 when installed to the imaging device P, so as to be able to perform a developing operation. The storage unit 14 is used to store information such as specifications and models of the developing box 10, and includes a substrate 141, a memory, and an electrical contact. The substrate 141 has a front side and a back side arranged opposite to the front side, and the electrical contact and the memory are both arranged on the substrate 141, wherein the electrical contact is arranged on the front side of the substrate 141, and the memory is arranged on the back side of the substrate 141. There are multiple (two or more) electrical contacts, and the multiple electrical contacts include 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 box 10 .

[0079] The powder feeding roller 15 is rotatably supported on the developing frame 11, and the powder feeding roller 15 faces the developing roller 13 and can deliver the developer to the developing roller 13; the stirring member 16 is used to stir the developer contained in the powder bin. The first driving force receiving member 12 is used to receive the driving force from the imaging device P to directly or indirectly drive the developing roller 13 and the powder feeding roller 15 to rotate; preferably, the first driving force receiving member 12 is arranged at the first end 101 of the developing box 10.

[0080] 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 arranged on the first main body 122, and can mesh with the driving force output member of the imaging device P and receive the driving force. The first gear portion 123 and the second gear portion 124 are connected to the first main body 122 and can transmit the driving force. The first gear portion 123 and the second gear portion 124 can be integrally formed or movably connected with the first main body 122. Preferably, the diameter of the first main body 122 is smaller than the diameter of the first gear portion 123, the diameter of the first gear portion 123 is smaller than the diameter of the second gear portion 124, and the first gear portion 123 is farther away from the developing frame 11 than the second gear portion 124. The storage unit 14 can be arranged 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 box 10 is further provided with a first end cover 103 , which is located at the first end 101 of the developing box 10 , and is connected to the developing frame 11 to at least cover a portion of the first driving force receiving member 12 .

[0081] The developer cartridge 10 of the present embodiment further includes a pressure-receiving member 17, a separation force receiving member 18, and a locked member 19. The pressure-receiving member 17 can receive the force of the pressing member so that the developing roller 13 and the photosensitive drum 201 are close to or in contact with each other. The separation force receiving member 18 is used to receive the force from the separation force transmitting member 206 / separation force applying member so that the developing roller 13 and the photosensitive drum 201 are separated from each other.

[0082] The pressure-receiving member 17 is disposed on the developing frame 11, and is preferably formed integrally with the developing frame 11. When the developing 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 back to the front. More preferably, the pressure-receiving member 17 is located between the two ends of the developing cartridge 10. The separation force receiving member 18 is disposed at one end of the developing cartridge 10, and 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, so that the developing cartridge 10 moves backward, thereby separating the developing roller 13 and the photosensitive drum 201. Preferably, the separation force receiving member 18 is disposed on the developing frame 11 and protrudes from the developing frame 11.

[0083] 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, and the separation force receiving member 18 and the first main body 122 can be integrally formed or separately disposed. The locked member 19 is disposed on the rear side of the developing cartridge 10, and when the developing cartridge 10 is mounted on the drum cartridge 20, the locked member 19 is engaged with the locking member 207, so that the developing cartridge 10 is locked; 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 member 17.

[0084] like Figure 7-Figure 11 As shown, the developing box 10 of this embodiment further includes a detected device 70, which can be detected by the detecting device 50 of the imaging device P.

[0085] The detected device 70 includes a conductive component 72 and a first voltage control member 71. When installed to 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 and off of the electrical connection between the detection device 50 and the ground terminal K, so that the voltage value detected by the detection unit 501 changes. Specifically, the conductive component 72 is provided with a first electrical connection portion 73, and the first electrical connection portion 73 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, the imaging device contact pin contacting the ground terminal 142, the inner wall of the door cover P2, the first upper end wall P41, and the grounding conductive member P311.

[0086] In the present 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 .

[0087] 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 separately arranged or integrally formed.

[0088] In this embodiment, at least a portion of the first conductive member 74 is disposed at the first end 101 of the developing box 10, and can receive power from the imaging device P, specifically, can contact the switch member 503 of the imaging device P to receive power. The second conductive member 75 is electrically connected to the first conductive member 74, and at least a portion of it is located between the first end 101 and the second end 102 of the developing box 10. The second conductive member 75 can be at least one of the developing roller shaft 132, the developing roller 13, the powder feeding roller 15, and the powder discharge knife 25. In this embodiment, the developing roller shaft 132 is used as the second conductive member 75. The third conductive member 76 is electrically connected to the second conductive member and at least a portion of it is located at the first end 101 of the developing box 10. The fourth conductive member 77 can be selectively electrically connected to the third conductive member 76, and the fourth conductive member 77 can be electrically connected to the ground terminal K; preferably, it is electrically connected to the first upper end wall P41, and at least a portion of it is located at the second end 102 of the developing box 10.

[0089] The conductive component 72 can be switched between an electrically connected state and a non-electrically connected state. Specifically, the third conductive member 76 and the fourth conductive member 77 can be switched between an electrically connected state and a non-electrically connected state. At least a portion (moving end) of the third conductive member 76 and / or the fourth conductive member 77 is movable so that the third conductive member 76 and the fourth conductive member 77 can be switched 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 can be elastically deformed; when the developer box 10 is installed on the drum box 20, the first electrical connection portion 73 abuts against the ground terminal K; in some embodiments, when the developer box 10 is moved backward by the force of the separation force transmission member 206 / separation force application member, the first electrical connection portion 73 maintains 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 developer box 10 is not affected by the separation force transmission member 206 / separation force application member, the first electrical connection portion 73 has a first deformation amount, and when the developer box is moved backward by the force of the separation force transmission member 206 / separation force application member, the first electrical connection portion 73 has a second deformation amount, and the first deformation amount is greater than the second deformation amount.

[0090] 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.

[0091] 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.

[0092] The first voltage control member 71 is rotatably connected to the developing frame 11 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, which 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 disposed on the second main body 710 and is used to combine with the driving force receiving unit and receive the driving force; the first driving portion 712 is disposed on the second main body 710 and is capable of driving the third conductive member 76 so that the third conductive member 76 is in electrical contact with the fourth conductive member 77.

[0093] 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).

[0094] In this embodiment, the developing cartridge 10 further includes a force applying portion 105, which can apply a force to the switch member 503 of the imaging device P when the developing cartridge 10 is mounted to the imaging device P, so that the switch member 503 moves from the initial position to the closed position. In this embodiment, the force applying portion 105 is disposed on the first conductive member 74. Alternatively, the force applying portion 105 can be disposed separately from the first conductive member 74.

[0095] 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.

[0096] 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 greater 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 .

[0097] The fourth gear portion 812 can be meshed with the first gear portion 123 of the first driving force receiving member 12, the third gear portion 811 can be meshed with the fifth gear portion 821 of the second transmission member 82, and the sixth gear portion 822 of the second transmission member 82 can be meshed 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.

[0098] Since 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 the driving force to the fifth gear portion 821, the rotational angular velocity of the second transmission member 82 is smaller than that of the first transmission member 81. Since 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 the driving force to the first voltage control member 71, the rotational angular velocity of the first voltage control member 71 is smaller than that of the second transmission member 82. It can be seen that when the 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 smaller than that of the first driving force receiving member 12, which effectively controls the rotational speed of the first voltage control member 71, so that the first voltage control member 71 effectively controls the on-off of the circuit and improves the detection accuracy.

[0099] In the present embodiment, the detected device 70 further includes a power cut-off mechanism, which is used to cut 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 the direction of its rotation axis. When the detection is completed, the first voltage control member 71 is configured to move along the direction of its rotation axis so that the sixth gear portion 822 of the second transmission member 82 can be disengaged from the first driving force receiving portion 711 of the first voltage control member 71.

[0100] The developer box 10 of this embodiment is also provided with a powder filling port 84, which is provided at the second end 102 of the developer box 10, and the powder filling port 84 does not overlap with the second end cover 104 provided at the second end 102 of the developer box. The powder filling port 84 is provided at the second end 102 of the developer box 10 to facilitate the filling of carbon powder. Since the first end 101 of the developer box 10 is provided with more transmission parts, if the powder filling port 84 is provided at the first end 101, it will be not conducive to the filling of carbon powder.

[0101] In the developing box 10 of this embodiment, when the developing box 10 is installed in 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 (such as Fig.13 As shown), 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 that the voltage value is U1.

[0102] Combination Figure 12-Figure 14 Describe the process by which the developer cartridge is detected.

[0103] When the developing cartridge 10 begins to be detected, the first driving force receiving member 12 receives the driving force and rotates, and the first voltage control member 71 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 to electrically contact the third conductive member 76, and at this time, the voltage value of the detection device 50 is U2. The values ​​of U2 and U1 are different, and the detection unit 501 detects the change in voltage and records it.

[0104] In this embodiment, the voltage control component is provided with a plurality of first driving parts 712, and the third conductive member 76 and the fourth conductive member 77 can switch between the electrically connected state and the non-electrically connected state for multiple times, and the detection unit 501 detects that the voltage value changes for multiple times, thereby identifying the capacity and specification information of the developing 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 the driving force, and the first driving part 712 no longer applies the force to the fourth conductive member 77, and the third conductive member 76 and the fourth conductive member 77 are in the 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.

[0105] In some embodiments, an impedance element is further disposed in the conductive component.

[0106] 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, and the like.

[0107] In some embodiments, a mainspring or a spring storing 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 .

[0108] 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.

[0109] In some embodiments, the second conductive member may be an independently provided conductive piece.

[0110] The developing box 10 with the above structure provides a new detection structure, and the detection accuracy is improved; the structure is more simplified.

[0111] 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.

[0112] Example 2

[0113] This embodiment is an improvement made on the basis of the embodiment 1, and the same parts are not described in detail, and only the main differences are introduced below. The same parts of the specification can refer to the drawings of the above embodiment.

[0114] like Fig.15 As shown, the conductive component of the developer box 10 of this embodiment is configured to be electrically connected to the second inner wall P21 of the door cover P2 of the imaging device P. Specifically, the first electrical connection portion 73a extends from the rear end of the developer box 10, and when the door cover P2 is closed, the second inner wall 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 outward from the first end cover 103.

[0115] 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.

[0116] 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 .

[0117] 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.

[0118] The developer box 10 of the above structure is in contact with the door cover P2 and has stronger stability. In addition, compared with setting the first electrical connection part 73a to be connected to the first upper end wall P41, the problem of poor contact caused by contact with the label P47 is avoided.

[0119] The ground terminal K may 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, an inner wall of the door cover P2, a first upper end wall P41, and a ground conductive member P311.

[0120] Example 3

[0121] This embodiment is a further improvement on the basis of embodiment 1 or 2, and the same parts are not described in detail. Only the main differences are introduced below. The same parts of the specification can refer to the drawings of the above embodiments.

[0122] like Fig.16 and Fig.17 As shown, the first electrical connection portion 73b is configured to be able to move 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 retracts 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.

[0123] In this embodiment, the first electrical connection portion 73 b further includes a second force receiving portion 731 , and the second force receiving portion 731 can receive the force of the imaging device P to move, specifically, receive the force of the second surface P44 to move.

[0124] Preferably, the first electrical connection portion 73b can move in the front-rear direction of the developing box 10. Fig.16 As shown, when the developing cartridge 10 is not mounted to the imaging device P, the first electrical connection portion 73b is located at the third position, and the first electrical connection portion 73b does not protrude from the rear end of the developing cartridge 10; Fig.17 As shown, when the developing box 10 is installed to the imaging device P, the first electrical connection part 73b abuts against the second surface P44 of the second upper end wall P42 of the imaging device P, and a part of the first electrical connection part 73b protrudes from the rear end of the developing box 10. When the door cover P2 is closed, the first electrical connection part 73b can be electrically connected to the second inner wall P21 of the door cover P2 to achieve grounding.

[0125] With the developer box 10 of this structure, when the developer box 10 is packaged, the first electrical connection portion 73b can be retracted into the developer frame 11 to avoid being damaged during packaging / transportation.

[0126] In some embodiments, the second force receiving portion 731 can be driven directly or indirectly by the first driving force receiving member 12 so that the first electrical connection portion 73 moves between the third position and the fourth position.

[0127] The ground terminal K may 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, an inner wall of the door cover P2, a first upper end wall P41, and a ground conductive member P311.

[0128] Example 4

[0129] This embodiment is a further improvement on the basis of the embodiment 1, the embodiment 2 or the embodiment 3, and the same parts are not described in detail, and only the main differences are introduced below. The same parts of the specification can refer to the drawings of the above embodiments.

[0130] like Figures 18 to 22 As shown, 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.

[0131] 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, wherein 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 to the image forming device P. The second conductive member 75c extends from the first end 101 of the developing cartridge 10 to the second end 102 of the developing cartridge 10, the second conductive member 75c is electrically connected to the third conductive member 76c, the third conductive member 76c is electrically connected to the fourth conductive member 77c, and 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.

[0132] The first electrical connection portion 73c of the fourth conductive member 77c is configured to be movable 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 cover 103, and can be electrically connected to the ground terminal. In the fourth position, the first electrical connection portion 73c retracts relative to the third position, preferably retracts relative to the developing frame 11. The movement of the first electrical connection portion 73c can be sliding, swinging or rotating. In this embodiment, the first electrical connection portion 73c is slidably arranged on the first end portion 101 / the first end cover 103, and the first end cover 103 is provided with a receiving groove cavity 731c for accommodating at least a part of the first electrical connection portion 73c. ​​The first electrical connection portion 73c is provided with a third force receiving portion 732c. When the first voltage control member 71 rotates, the first driving portion 712 can apply a force to the third force receiving portion 732c of the first electrical connection portion 73c, so that the first electrical connection portion 73c moves from the fourth position to the third position, and realizes electrical connection with 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 .

[0133] 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, which accumulates elastic potential energy when the first electrical connection part 73c can move from the fourth position to the third position, and releases the elastic potential energy when the first driving part 712 no longer applies a force to the force-bearing part of the first electrical connection part 73c, so that the first electrical connection part 73c can move from the third position to the fourth position.

[0134] Combination Figure 20-22 , when the developing cartridge 10 is not mounted to the imaging device P, as Fig.21 As shown, the switch member 503 is in the disconnected position where the circuit is not connected. When the developing cartridge 10 is mounted on the imaging device P, the swing lever 504 is acted upon by the force applying portion 105 to move the switch member 503 from the disconnected position to the closed position. At this time, the detected device is not connected to the ground terminal K, and the voltage value detected by the detection unit 501 is U1.

[0135] When the developing box 10 starts to detect, the combination Fig. 22, the first driving part 712 drives the first electrical connection part 73c to move from the fourth position to the third position, and the first electrical connection part 73c contacts the ground terminal, and the voltage value detected by the detection unit 501 is U2. When the first driving part 712 no longer drives the first electrical connection part 73c, the first electrical connection part 73c moves from the third position to the fourth position under the action of the first reset member 733c, and the first electrical connection part 73c disconnects from the ground terminal K, and the voltage value detected by the detection unit 501 is U1; the values ​​of U1 and U2 are different, and the detection unit 501 detects the change of the voltage signal to judge the information of the developing box 10.

[0136] With the developer box 10 having the above structure, the electrical connection of the detected component is more stable.

[0137] The ground terminal K may 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, an inner wall of the door cover P2, a first upper end wall P41, and a ground conductive member P311.

[0138] Example 5

[0139] This embodiment is a further improvement on the basis of Embodiment 1, Embodiment 2, Embodiment 3 or Embodiment 4, and the same parts are not repeated here, and only the main differences are introduced below. The same parts of the specification can refer to the drawings of the above embodiments.

[0140] like Figure 23-Figure 29 As shown, 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 be switched between an electrical contact state and a non-electrical contact state.

[0141] In this embodiment, the first conductive member 74d includes an electrical contact portion 741d, which can be in electrical contact with 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, and 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 materials.

[0142] The second conductive component 75d is electrically connected to the first conductive component 74d. Specifically, the second conductive component 75d is connected to the second sub-component 743d. Preferably, the second conductive component 75d is configured as a stirring component shaft.

[0143] 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.

[0144] In this embodiment, the first electrical connection portion 73d can move between the third position and the fourth position. The first electrical connection portion 73d is configured as a rod, one end of which abuts against the end surface of the third sub-component 771d, and the other end is used to contact the ground terminal K. In this embodiment, the first electrical connection portion 73d is slidably disposed on the first end cover 103.

[0145] The detected device also includes a first elastic member 79d, and the first elastic member 79d makes the first electrical connection part 73d 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 part 73d, and the other end abuts against the first end cover 103. When the first electrical connection part 73d falls into the notch part 773d, under the action of the force of the first elastic member 79d, the first electrical connection part 73d can move from one end of the third position to the fourth position. In the third position, the first electrical connection part 73d can contact the ground terminal K. In the fourth position, the first electrical connection part 73d retracts and disconnects the contact with the ground terminal K.

[0146] The first voltage control member 71d is disposed at the second end portion 102 of the developing cartridge 10, and is provided with a non-electrical contact portion 711d, which is located between adjacent electric contact portions 741d of the first conductive member 74d, so that the electric contact portion 741d and the non-electrical contact portion 711d are arranged at intervals, and when the switch member 503 contacts the electric contact portion 741d, the conductive component 72d is electrically connected to the switch member 503, and when the switch member 503 contacts the non-electrical contact portion 711d, the conductive component 72d is disconnected from the switch member 503. A plurality of electric contact portions 741d and non-electrical contact portions 711d may be provided and arranged at intervals.

[0147] Combination Figure 27-Figure 29 , when the developing cartridge 10 is not mounted to the imaging device P, as Fig.28 As shown, the switch member 503 is in the disconnected position where the circuit is not turned on. When the developing cartridge 10 is mounted on the imaging device P, the swing lever is acted upon by the force applying portion 105, so that the switch member 503 moves from the disconnected position to the closed position, at which time the first electrical connection portion 73d is in the third position and electrically contacts the ground terminal K, the switch member 503 contacts the non-electrical contact portion 711d of the first voltage control member 71d (at which time the first voltage control member 71d is in the first position), the conductive component 72d is not electrically connected to the switch member 503, and the voltage value detected by the detection unit 501 is U1.

[0148] When the developing box 10 starts to detect, as shown in FIG. Fig.29 As shown, the first driving force receiving member 12 receives the driving force and transmits the driving force 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 in the second position at this time), and the conductive component 72d is connected to the switch member 503. At this time, the detection device is grounded, and the voltage value detected by the detection unit 501 is U2. When the non-electrical contact portion 711d contacts the switch member 503 again as the first conductive member 74d and the first voltage control member 71d rotate, the conductive component 72d is no longer electrically connected to the detection device, and the voltage value detected by the detection unit 501 is U1. By analogy, the electrical contact portion 741d and the non-electrical contact portion 711d are alternately electrically connected to the switch member 503, and the detection unit 501 detects the alternating voltage change, thereby judging the information of the developing cartridge 10.

[0149] With the developer box 10 having the above structure, the electrical connection of the detected component is more stable.

[0150] The ground terminal K may 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, an inner wall of the door cover P2, a first upper end wall P41, and a ground conductive member P311.

[0151] Example 6

[0152] This embodiment is a further improvement on the above embodiments 1-5, and the same parts are not repeated here, and only the main differences are introduced below. The same parts of the specification can refer to the drawings of the above embodiments.

[0153] like Figure 30-Figure 32As shown, 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 the grounding is achieved by electrically connecting the ground terminal 142 / the fourth conductive component 77e to the contact pin of the imaging device P.

[0154] As shown in the figure, the present embodiment further includes a second voltage control member 9, which is used to control the voltage value / current value of the developing roller 13. Preferably, the second voltage control member 9 controls the voltage / current value of the circuit by controlling the on / off of the circuit. The second voltage control member 9 can receive an external force and move between a fifth position and a sixth position. In the fifth position, the developing roller is electrically connected to the ground terminal, and in the sixth position, the developing roller is not electrically connected to the ground terminal. In the present embodiment, the second conductive member is the developing roller 13.

[0155] The first conductive member 74e is electrically connected to the developing roller 13, the developing roller 13 is electrically connected to the third conductive member 76e, and the third conductive member 76e 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, and the supply electrode is used to supply power to the developing roller; the specific supply electrode can be a switch member 503. In some embodiments, the supply electrode can be an independently provided component.

[0156] Preferably, the second voltage control component 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 component 9 drives the third conductive component 76e and / or the fourth conductive component 77e, so that the third conductive component 76e and the fourth conductive component 77e are in an electrically connected state; in the sixth position, the first voltage control component 71d does not drive the third conductive component 76e and / or the fourth conductive component 77e, and the third conductive component 76e and the fourth conductive component 77e are in a non-electrically connected state.

[0157] 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.

[0158] The second voltage control member 9 is rotatably connected to the developing frame 11 directly or indirectly. In this embodiment, the second voltage control member 9 is rotatably mounted on the first end 101 of the developing cartridge 10. The second voltage control member 9 is configured as a rotating component, which 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 used to receive the force of the separation force applying member or the separation force transmitting member 206, so that the second voltage control member 9 rotates. 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, so that the third conductive member 76e is in electrical contact with the fourth conductive member 77e.

[0159] 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.

[0160] When the developing box 10 performs the cleaning operation of the photosensitive drum 201, the separation force applying member or the separation force transmitting member 206 applies a force to the second voltage control member 9, so that the second voltage control member 9 rotates. As the second voltage control member 9 rotates, the second driving unit 91 drives the third conductive member 76e to be in electrical contact with the fourth conductive member 77e, and the voltage value of the developing roller 13 is U4 at this time. The values ​​of U3 and U4 are different. When the voltage value is U3, the carbon powder of the developing roller 13 can be transferred to the surface of the photosensitive drum 201, but when the voltage value is U4, the carbon powder on the developing roller 13 is not transferred to the photosensitive drum 201, so it is beneficial to the cleaning of the photosensitive drum 201, and the photosensitive drum 201 will not be attached with carbon powder 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.

[0161] 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.

[0162] The developing box 10 with the above structure can reduce the risk of carbon powder being attached to the photosensitive drum 201 when cleaning, and the cleaning effect is improved. In addition, the developing box with this structure does not need to be provided with a complicated separation mechanism, and does not need to separate the photosensitive drum and the developing roller.

[0163] 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 wall of the door cover P2 of the imaging device P to achieve grounding.

[0164] 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 the circuit, and the voltage / current value of the circuit is controlled by changing the resistance.

[0165] In the above-mentioned embodiments and their variations, driving may include direct driving and indirect driving, and connecting may include direct connection and indirect connection.

[0166] In some embodiments, the developing cartridge does not have the first voltage control member, but only the second voltage control member 9 is provided.

[0167] In some embodiments, the developing cartridge has the first voltage control member, but the second voltage control member 9 is not provided.

[0168] 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 the contact or non-contact between the fourth conductive member 77e and the above-mentioned ground terminal.

[0169] 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.

[0170] The electrical connection of the present invention may be a direct electrical connection or an indirect electrical connection.

[0171] Example 7

[0172] This embodiment is a further improvement on the basis of the embodiment 4, and the same parts are not described in detail, and only the main differences are introduced below. The same parts of the specification can refer to the drawings of the above embodiment.

[0173] like Figures 1 to 5b , Figure 33 to Figure 36 As shown, in this embodiment, the conductive component can be electrically connected to the switch component, and the conductive component and the ground terminal can be switched between an electrically connected state and a non-electrically connected state. 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 and the ground terminal K can be switched between an electrically contacted state and a non-electrically contacted state.

[0174] 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 to the imaging device P. In this embodiment, the first conductive member 74f is made of a conductive metal piece.

[0175] The second conductive member 75f extends from the first end 101 of the developing box 10 to the second end 102 of the developing box 10, and 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 developing roller shaft 132, the developing roller 13, the powder feeding roller 15, and the powder discharge knife 25, or at least includes a conductive component independent of the developing roller 13, the powder feeding roller 15, and the powder discharge knife 25. In this embodiment, the powder discharge knife 25 is used as the second conductive member 75f.

[0176] 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.

[0177] In some embodiments, the third conductive member 76f is configured to be located inside the first end cover 103f or the developing frame 11, that is, it does not protrude from the first end cover 103f or the developing frame 11 to the outside of the developing box. This structural design is conducive to preventing the third conductive member 76f from being damaged by interference from external components. More specifically, the third conductive member 76f also has a plurality of bends to bypass the blocking structure on the first end cover 103f or the developing frame 11.

[0178] 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 cover 103f, and in the third position, it can be electrically contacted 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 cover 103f. The first electrical connection portion 73f is configured to be elastically deformable so as to be able to achieve elastic electrical contact with the ground terminal K (door cover) to improve the stability of the contact.

[0179] In this embodiment, the third conductive member 76f can act as a first reset member 733f, which is used to force the first electrical connection part 73f to move from the third position to the fourth position, that is, the third conductive member 76f can be considered as the first reset member 733f. The third conductive member 76f includes a first connection end 761, a second connection end 762 and an elastic part 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 part 763 connects the first connection end 761 and the second connection end 762, and the elastic part 763 can be stretched when the first electrical connection part 73f moves from the fourth position to the third position, and can make the first electrical connection part 73f in the third position return to the fourth position when elastically restored. Specifically, when the first electrical connection part 73f moves from the fourth position to the third position under the drive of the first voltage control member 71f, the elastic part 763 is stretched. When the first electrical connection portion 73f is not driven by the first voltage control member 71f (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.

[0180] Observed 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 electrical contacts of the second gear portion 124 and 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.

[0181] The first end cover 103f of this embodiment covers at least part of the fourth conductive member 77f, and the first end cover 103f includes an opening 1031 and a receiving chamber 1032. The opening 1031 is arranged at the rear side of the first end cover 103f and faces the rear of the developing cartridge 10, and the first electrical connection portion 73f can be exposed to the outside from the opening 1031. When the first electrical connection portion 73f is in the third position, at least a part of the first electrical connection portion 73f is located outside the opening 1031, and 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 chamber 1032 is located between the storage unit 148 and the developing frame 11, and is used to receive the fourth conductive member 77f.

[0182] In this structural design, the first end cover 103f covers at least a portion of the fourth conductive member 77f, which is beneficial for the first end cover 103f to protect the fourth conductive member 77f. In addition, 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 can prevent the first electrical connection portion 73f from piercing the package, thereby reducing the difficulty and cost of packaging.

[0183] The developing box 10 further includes a movable member 9f that carries at least a portion of the fourth conductive member 77f or the first electrical connection portion 73f, and the movable member 9f can move relative to the developing frame 11 of the developing box 10; in this embodiment, the movable member 9f is configured to slide relative to the developing frame 11 in the front-to-back direction, and preferably, the movable member 9f is slidably disposed on the first end cover 103f. In some embodiments, the movable member 9f can also be disposed on the developing frame 11; the moving direction of the movable member 9f can also be the left-right direction or the up-down direction, as long as it can achieve switching between the contact state and the non-contact state with the ground terminal K.

[0184] The movable part 9f includes a connecting portion 91f, a first accommodating portion 92f, a force receiving portion 93f and a force applying portion 94f, wherein the connecting portion 91f is used for sliding connection with the connected portion 1033 of the first end cover 103f. Specifically, at least one of the connecting portion 91f and the connected portion 1033 is a slider, and the other is a slide groove cooperating with the slider.

[0185] The first accommodating portion 92f can accommodate at least part 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 member 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 lower 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.

[0186] In this embodiment, the first driving portion 712 of the first voltage control member 71f is provided with an arcuate driving surface 7121, which cooperates with the force surface 931f to make the movable member 9f slide. The arcuate driving surface 7121 cooperates with the force surface 931f, and the driving is smoother.

[0187] In the present embodiment, the developing box 10 also includes a reset mechanism, which facilitates the user to restore the detected device to its initial state when it is not detected. In the present 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 the initial position, and the detected device is in the initial state when it is not detected. Specifically, the first indicator position 871f is a first surface provided on the first driving part 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 the initial position, and the detected device is in the initial state when it is not detected.

[0188] Combination Fig. 20 When the developing cartridge 10′ is not mounted to the image forming apparatus P, the switch member 503 is in the disconnected position where the circuit is not turned on. Fig.21 When the developing box 10 is installed to 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 open position to the closed position. At this time, the detected device is not conductive with the ground terminal K, and the voltage value detected by the detection unit is U1.

[0189] Combination Fig. 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 member 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.

[0190] When the first driving part 712 no longer pushes the movable part 9f, the fourth conductive member 77f moves from the third position to the fourth position under the elastic restoring force of the elastic part 763, and 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 change in the voltage value detected by the detection unit is used 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 with the second surface.

[0191] The ground terminal K may be at least one of a ground terminal K of a 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.

[0192] 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.

[0193] 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.

[0194] In some embodiments, the conductive component supplies the received power to at least one of the developing roller, the powder discharge knife and the powder feeding roller; that is, the conductive component is electrically connected to at least one of the developing roller, the powder discharge knife and the powder feeding roller.

[0195] In some embodiments, the conductive component is not electrically connected to at least one of the developing roller, the powder blade, and the powder feeding roller; the developing roller is electrically connected to the switch member 503 or the power supply component of the imaging device through an electrical connection component independent of the conductive component. The electrical connection component can be in electrical contact with the switch member 503 and not in contact with the conductive component.

[0196] 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.

[0197] Example 8

[0198] 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 of the specification may be described by referring to some of the drawings of the aforementioned embodiments.

[0199] 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 where it is not in contact with the ground terminal k to a position where it is 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.

[0200] like Fig.37 and Fig.38As shown, in order to solve the above technical problems, in the present 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 that leads to detection failure.

[0201] 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. The anti-slip portion 731g can be assembled on the mounting portion 732g through the assembly end 733g. In this embodiment, the assembly end 733g is formed with a locking structure 734g. The locking structure 734g is engaged with the mounting portion 732g to prevent the anti-slip portion 731g from falling off.

[0202] 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, which will not slide or jump when abutting against 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, etc.). The fourth conductive member 77 is configured as a spring, and the anti-slip portion 731g covers the mounting portion 732g when viewed along the axial direction of the fourth conductive member 77. 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 box.

[0203] In some embodiments, the end surface of the anti-slip portion 731g is formed with anti-slip stripes to increase friction resistance.

[0204] 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 contacting the ground terminal k.

[0205] Fig.39 The anti-slip part 731g is a deformed structure 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 outer side of the mounting part 732g through the chamber structure to prevent the anti-slip part 731g from falling off.

[0206] The above embodiments can be combined with each other and also fall within the protection scope of the present invention.

[0207] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. In order to distinguish different components, the present invention introduces the terms "first", "second", etc., where the terms "first", "second", etc. are not understood as limiting their quantity. For example, the driving member described in the present invention has a second gear part, but it does not mean that the driving member must have a first gear part and a third gear part. According to the description of the specification, the components described by "first", "second", etc. 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 restrictions on their orientation. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein by equivalent; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

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, 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 component, the separation force receiving component 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 portion has a first deformation amount, and after the developing roller and the photosensitive drum are separated, the first electrical connection portion has a second deformation amount, and the first deformation amount is greater than the second deformation amount.

3. The developing cartridge according to claim 1, 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.

4. 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.

5. The developing cartridge according to claim 1, wherein: The conductive component includes a first conductive member, a second conductive member, a third conductive member, and a fourth conductive member, and a first electrical connection portion electrically contacting the ground terminal, wherein 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; wherein, The first conductive component, the second conductive component, the third conductive component and the fourth conductive component are separately arranged or at least two are integrally formed; and / or at least one of the first conductive component, the second conductive component, the third conductive component and the fourth conductive component has a separately arranged conductive component.

6. The developing cartridge according to claim 5, 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.

7. The developing cartridge according to claim 5, 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.

8. The developing cartridge according to claim 1, wherein: The developing box also includes a deceleration mechanism arranged at a first end of the developing box, and the deceleration mechanism includes at least a first transmission member and a second transmission member, the first transmission member includes a third gear portion and a fourth gear portion, the second transmission member includes a fifth gear portion and a sixth gear portion, the fourth gear portion is meshed with the first gear portion of the first driving force receiving member, the third gear portion is meshed with the fifth gear portion, and the sixth gear portion is meshed with the first driving force receiving portion of the first voltage control member.

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

10. The developing cartridge according to any one of claims 1 to 9, 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.

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