Developer Box

Abstract

The present invention provides a developing box which can be detachably mounted on an electronic photographic imaging device provided with a detection component, the developing box comprising: a shell having a accommodating chamber for accommodating a developer; a driving force receiving component for receiving a driving force from the electronic photographic imaging device; the developing box also comprises: a movable component, a limiting portion and a detected component, wherein the movable component and the limiting portion are located at the same end in the length direction of the developing box, and the movable component is provided with a convex rib. The developing box with this structure has a simple structure, solves the complex structure of the toothless gear used in the prior art, and avoids the risk of jamming during the detection process and affecting the detection result.

Description

[Technical field]

[0001] The present invention relates to a developing box for an electronic photographic imaging device. [Background technology]

[0002] The developing cartridge is usually detachable and used in an electronic photographic imaging device. The developing cartridge contains a developer, which can be used for imaging during the printing process. When the developer in the developing cartridge is exhausted, a new developing cartridge needs to be replaced for use. When the newly replaced developing cartridge is installed in the electronic photographic imaging device, the electronic photographic imaging device needs to perform a test on the developing cartridge to determine whether the developing cartridge is new and the amount of printable ink. Therefore, a detection component is provided in the electronic photographic imaging device, and a detected component is provided on the corresponding developing cartridge for detection and matching.

[0003] In the prior art, there is a developing box whose detection device is a gear device, which includes a stirring frame gear and a toothless gear located on one side of the box body, and the toothless gear includes a protrusion that can contact the detection component in the electronic photographic imaging device. When the stirring frame gear is engaged with the toothed portion of the toothless gear, the stirring frame gear drives the toothless gear to rotate. When rotating, the protrusion on the toothless gear moves the detection component in the electronic photographic imaging device, and then transmits information to the printer to determine whether the developing box is new. Generally, the different number of protrusions on the toothless gear can also detect the printable amount of the developing box. When the stirring frame gear rotates and faces the toothless part of the toothless gear, the stirring frame gear and the toothed gear are no longer engaged. At this time, the stirring frame gear continues to rotate, but the toothed gear no longer rotates with it, and the detection is completed. When the developing box is removed and then installed, the toothed gear will not rotate either. The detected device of this structure needs to be closely matched with the stirring member gear through the toothed part and the toothless part of the toothless gear. Therefore, the manufacturing accuracy of the stirring member gear and the toothless gear is high, the production cost is increased, the structure is complicated, and during the detection contact process, it is easy for the stirring member gear and the toothless gear to get stuck, which affects the detection result. [Summary of the invention]

[0004] The object of the present invention is to provide a developing box, which has a simple structure and low production cost and can solve the technical problems of complex structure of toothless gears, high manufacturing precision requirements and the risk of jamming.

[0005] To achieve the above-mentioned purpose, the present invention provides a developing box, which can be detachably installed in an electronic photographic imaging device provided with a detection component, and the developing box includes: a shell, having a accommodating chamber for accommodating a developer; a driving force receiving component, for receiving a driving force from the electronic photographic imaging device; the developing box also includes: a movable component, a limiting portion and a detected component, wherein the movable component and the limiting portion are located at the same end in the length direction of the developing box, and the movable component is provided with a rib.

[0006] The developing box with the above structure includes a movable component, a limiting portion and a detected component. During the detection period, the movable component receives the driving force and rotates. The movable member has a force-applying and non-force-applying state on the detected component during the rotation process, so that the detected component can rotate back and forth, and then the detected component cooperates with the electronic photographic imaging device to realize the detection. At the same time, under the cooperation of the limiting portion and the convex rib, the movable component can move along the rotation axis direction of the movable component, and the driving force transmitted to the movable component is disconnected by the movement, thereby controlling the end of the detection. The developing box with this structure does not need to adopt a toothless gear device, has a simple structure and low manufacturing cost, and at the same time avoids the risk of jamming caused by the use of toothless gears.

[0007] Furthermore, the movable component is a cam component, which includes a main body, a force-bearing part and at least one cam part, the main body has a circumferential outer wall, the rib is arranged on the circumferential outer wall of the main body, and the cam part is located at one end of the cam component.

[0008] Further, during the rotation of the cam component, the limiting portion cooperates with the convex rib to enable the cam component to move along the rotation axis direction of the cam component.

[0009] The developing box with the above-mentioned structure enables the cam member to move along the rotation axis direction of the cam member through the cooperation between the limiting portion and the convex rib. In this way, the driving force transmitted to the cam member can be disconnected, thereby controlling the end of the detection. The developing box with this structure does not need to adopt a toothless gear device, has a simple structure and low manufacturing cost, and at the same time avoids the risk of jamming caused by using a toothless gear.

[0010] Furthermore, the cam component includes at least one section of the convex rib, which is arranged on the outer wall of the main body along the circumferential direction of the circumferential outer wall of the main body, and protrudes along the radial direction of the main body in a direction away from the rotation axis of the cam component, and the convex rib is provided with a notch; the developing box also includes a first elastic component, at least a portion of which is in contact with the cam component.

[0011] Furthermore, during the rotation of the cam member, the convex rib is released from the pressure of the limiting portion so that the cam member moves away from the housing along the rotation axis of the cam member under the action of the force of the first elastic member.

[0012] The developing box with the above structure, through the cooperation between the rib, the first elastic component and the limiting portion, allows the cam component to move away from the shell along the direction of the rotation axis of the cam component under the action of the force of the first elastic component, so that the driving force transmitted to the cam component can be disconnected, thereby controlling the end of the detection. The developing box of this structure has a simple structure, good cooperation effect and stable performance without the need for a toothless gear device.

[0013] Furthermore, the convex rib is in a threaded shape and forms a thread groove on the circumferential outer wall of the main body.

[0014] In the developer box having the above structure, the convex rib is in a threaded shape on the circumferential outer wall of the main body and forms a thread groove. This structure is simple, has a good matching effect with the limiting part and has stable performance.

[0015] Further, the force-bearing portion is a force-bearing protrusion provided at one end of the cam component, and the force-bearing protrusion extends in a radial direction of the main body toward a direction close to a rotation axis of the cam component.

[0016] The developing box with the above structure has a force-bearing portion constructed as a protrusion structure, which has a simple structure, low manufacturing cost and good matching effect.

[0017] Furthermore, one end of the cam member is provided with at least one protrusion extending along the rotation axis direction of the cam member in a direction away from the main body portion, and the cam portion is provided on the protrusion.

[0018] Furthermore, the cam member further comprises a positioning portion, and in the direction of the rotation axis of the cam member, the positioning portion is spaced apart from at least one of the cam portions, and when the detection is completed, the positioning portion abuts against the detected member.

[0019] Furthermore, the detected component includes a first shift block, a connecting shaft and a second shift block, and the first shift block and the second shift block are respectively arranged at two ends of the connecting shaft in the length direction.

[0020] Furthermore, the developing box also includes a second elastic member, and the second elastic member is installed on the first shift block or the second shift block.

[0021] Furthermore, the second elastic member is a torsion spring.

[0022] Further, during the rotation of the movable member, when the movable member is disengaged from the detected member, the detected member rotates from a first position to a second position, and when the movable member applies a force to the detected member located at the second position, the detected member rotates from the second position to the first position.

[0023] Furthermore, the limiting portion is a limiting protrusion integrally formed with the shell.

[0024] Furthermore, the developing box also includes a limiting member that is detachable relative to the shell, and the limiting portion is arranged on the limiting member.

[0025] Further, the developing cartridge further includes a driving force transmitting portion for transmitting a driving force to the movable member during the detection so that the movable member rotates.

[0026] The developing box with the above structure includes a driving force transmission part, which is used to transmit driving force to the movable member during detection so that the movable member rotates. The driving force transmission part can be set on a rotating member that receives the driving force and rotates. Such rotating members include stirring member gears, developing roller gears, and powder feeding roller gears, or the driving force transmission part can be directly set at one end of the stirring member, developing roller, and powder feeding roller. This avoids the need for a separate gear device for transmitting driving force to the movable member, simplifies the structure of the developing box, saves manufacturing costs, and has a simple structure.

[0027] Furthermore, the developing box further comprises a driving force transmission member, and the driving force transmission portion is a transmission protrusion or a clamping groove provided on the driving force transmission member.

Brief Description of the Drawings

[0028] Figure 1 is a schematic diagram of the overall structure of the developing cartridge of Embodiment 1;

[0029] Figure 2 is a partially exploded schematic diagram of the developing cartridge of Example 1;

[0030] Figure 3 is another partial exploded schematic diagram of the developing cartridge of Example 1;

[0031] Figure 4 yes Figure 3 Middle A is a partial enlarged view;

[0032] Figure 5 is a schematic structural diagram of a limiting component and a cam component in Embodiment 1;

[0033] Figure 6 is a schematic diagram of the matching relationship among the driving force transmission part, the cam member, the first elastic member, the limiting member, the second elastic member and the detected member before the detection in Embodiment 1 is started;

[0034] Figure 7 1 is a schematic diagram of the matching relationship between the cam member, the detected member and the detecting member when a new developing cartridge is installed in the imaging device and detection has not started in Example 1;

[0035] Figure 8is a schematic diagram of the matching relationship between the cam member, the detected member and the detecting member when the detected member in embodiment 1 is in the second position;

[0036] Fig. 9 is a schematic diagram of the matching relationship between the cam member, the detected member and the detecting member after the developer cartridge detection in Embodiment 1;

[0037] Fig.10 is a partial exploded schematic diagram of a developing cartridge of Example 2;

[0038] Fig.11 yes Fig.10 Middle B is a partial enlarged view;

[0039] Fig.12 is a schematic structural diagram of a cam member and a driving force transmission member in Embodiment 2;

[0040] Fig.13 It is a partial structural schematic diagram of the developing box of Example 2;

[0041] Fig.14 is a schematic diagram of the matching relationship between the cam member, the detected member and the detecting member when a new developing cartridge is installed in the imaging device and detection has not started in Example 2;

[0042] Fig.15 is a schematic diagram of the matching relationship between the cam member, the detected member and the detecting member when the detected member in embodiment 2 is in the second position;

[0043] Fig.16 It is a schematic diagram of the matching relationship between the cam member, the detected member and the detecting member after the developer box detection in Example 2 is completed.

[0044] The specific implementation modes of the invention are further described in detail below with reference to the accompanying drawings. [Specific implementation method]

[0045] Example 1

[0046] like Figures 1 to 4 , Figure 6As shown, a developing box 100 that is detachably installed in an electronic photographic imaging device provided with a detection member includes a shell 1, a transmission assembly 2, a stirring member 4, a developing roller 5, and a powder feeding roller (not shown). A developer containing chamber 11 for containing developer is provided inside the shell 1, and the developer containing chamber 11 has a first side wall 12 and a second side wall 13 at both ends in the length direction, and a transmission assembly 2 is installed on the first side wall 12, and a first end cover 14 is also installed on the outside of the transmission assembly 2, and a second end cover 15 is installed on the outside of the second side wall 13, wherein the first end cover 14 is also provided with an opening (not shown in the figure). In this embodiment, in the length direction of the developing box 100, one end of the developing box 100 on which the transmission assembly 2 is installed is called the first end 6, and the other end opposite thereto is called the second end 7. The stirring member 4 is rotatably supported between the first side wall 12 and the second side wall 13 along the length direction of the shell 1. Combined with reference Figure 4 , a first convex column 121 is further provided on the first side wall 12 of the developing box, the first convex column 121 is provided with a first through hole 122, and the first end 41 of the stirring member 4 extends from the first through hole 122. When the developing box 100 is in the working state, the stirring member 4 can rotate around a rotation axis of itself to stir the developer stored in the developer storage bin 11. The powder feeding roller (not shown) is used to convey the developer to the developing roller 5, which is located at the powder outlet (not shown) of the developer storage bin 11 and is rotatably supported between the first side wall 12 and the second side wall 13 along the length direction of the housing 1. The developing roller 5 is located outside the powder feeding roller (not shown), rotatably supported between the first side wall 12 and the second side wall 13 along the length direction of the housing 1, and is in elastic contact with the powder feeding roller (not shown). In this embodiment, the transmission assembly 2 includes a driving force receiving member 21, a powder feeding roller gear 23, a developing roller gear 24, a stirring member gear 25 and a transition gear 26, wherein the transition gear 26 includes two gear parts, large and small, the powder feeding roller gear 23 is installed at the end of the powder feeding roller (not shown), the developing roller gear 24 is installed at the end of the developing roller 5, the stirring member gear 25 includes a third gear part 251, a cylindrical first mounting part 252 and a D-shaped mounting hole 253, and the stirring member gear 25 is installed on the first end 41 of the stirring member 4 through the D-shaped mounting hole 253. In this embodiment, the driving force receiving member 21 is It has a first gear portion 21a and a second gear portion 21b, wherein the first gear portion 21a is meshed with the developing roller gear 24 and the transition gear 26, the transition gear 26 is meshed with the stirring member gear 25, and the second gear portion 21b is meshed with the powder feeding roller gear 23. The driving force received by the driving force receiving member 21 from the electronic photographic imaging device side drives the developing roller 5 and the powder feeding roller (not shown) to rotate respectively through the developing roller gear 24 and the powder feeding roller gear 23, the driving force received by the driving force receiving member 21 drives the stirring member gear 25 to rotate through the transition gear 26, and then the stirring member gear 25 drives the stirring member 4 to rotate.

[0047] The following combination Figures 2 to 6 The specific structures of the driving force transmission part, the movable member, the limiting part, the detected member and the first elastic member are described in detail.

[0048] The driving force transmission portion is used to transmit the driving force to the movable member during the detection so that the movable member can rotate. In the present embodiment, the driving force transmission portion is a fourth protrusion 314 provided on the circumferential outer wall of the first mounting portion 252 of the stirring member gear 25. The fourth protrusion 314 protrudes radially outward along the first mounting portion 252 on the circumferential outer wall of the first mounting portion 252. When the stirring member gear 25 receives the driving force and rotates, the fourth protrusion 314 rotates along with the rotation of the stirring member 4. Optionally, the fourth protrusion 314 may be provided on other rotating parts that rotate under the action of the driving force. Such rotating parts may be the powder feeding roller gear 23, the developing roller gear 24, the powder feeding roller, the developing roller 5 or the stirring member 4.

[0049] In this embodiment, the movable member is a cam member 32. Figure 4 , 5As shown, the cam member 32 can rotate around its own rotation axis L1, and the cam member 32 includes a cylindrical main body 324, a force-bearing portion 322, a convex rib and a cam portion, wherein the main body 324 is cylindrical as a whole, has a circumferential outer wall, and a circular first mounting hole 325 is provided in the center, and the cam member 32 can be rotatably mounted on the outer wall of the first convex column 121 through the first mounting hole 325; the cam member 32 includes at least one section of convex rib located on the main body 324, and the length, position and number of the convex rib can be preset as needed; in this embodiment, the convex rib is provided with two sections, namely the first convex rib 323a and the second convex rib 323b, and the first convex rib 323a and the second convex rib 323b are provided. A convex rib 323a and a second convex rib 323b are arranged on the outer wall of the main body 324 along the circumferential direction of the circumferential outer wall of the main body 324, and protrude in the radial direction of the main body 324 away from the rotation axis L1 of the cam member 32; in the direction of the rotation axis L1 of the cam member 32, the first convex rib 323a and the second convex rib 323b are distributed at intervals and are divided into two layers, the first convex rib 323a has a first notch 3231, and the second convex rib 323b has a second notch 3232. When observed in the direction of the rotation axis L1 of the cam member 32, the first convex rib 323a and the second convex rib 323b are basically in the shape of a circular ring with a notch. The cam portion of the cam member 32 can be used to apply a force to the detected member 33 during the rotation of the cam member 32. In the present embodiment, the cam member 32 is provided with three cam portions, which are located at one end of the cam member 32, namely, a first cam portion 321a, a second cam portion 321b and a third cam portion 321c. In the present embodiment, the end of the cam member 32 away from the first side wall 12 is provided with a first protrusion 327a, a second protrusion 327b and a third protrusion 327c at intervals along the circumferential direction of the circumferential outer wall of the main body portion 324. The first protrusion 327a, the second protrusion 327b and the third protrusion 327c extend in the direction away from the main body 324 along the rotation axis L1 of the cam member 32, the first cam portion 321a, the second cam portion 321b and the third cam portion 321c are respectively located on the first protrusion 327a, the second protrusion 327b and the third protrusion 327c, and the first cam portion 321a, the second cam portion 321b and the third cam portion 321c are spaced at different distances in the circumferential direction of the main body 324. In the direction of the rotation axis L1 of the cam member 32, the first cam portion 321a is configured so that the shortest distance to the first side wall 12 is greater than the shortest distance to the first side wall 12 from the second cam portion 321b and the third cam portion 321c.The force-bearing portion is used to receive a driving force from the fourth protrusion 314 during detection to rotate the cam member 32. In the present embodiment, the force-bearing portion is a force-bearing protrusion 322 provided on the second protrusion 327b. The force-bearing protrusion 322 extends along the radial direction of the main body portion 324 toward the direction close to the rotation axis L1 of the cam member 32. When the fourth protrusion 314 rotates, the force-bearing protrusion 322 can contact the fourth protrusion 314 and receive a driving force to rotate the cam member 32. In the present embodiment, the fourth protrusion 314 coincides with the rotation axis of the cam member 32. In this embodiment, the cam member 32 also includes a positioning portion 326, which is constructed as a convex block provided on the first protrusion 327a. In the direction of the rotation axis L1 of the cam member 32, there is a spacing distance between the positioning portion 326 of the cam member 32 and the first cam portion 321a. The positioning portion 326 is closer to the first side wall 12 than the first cam portion 321a. The positioning portion 326 is configured so that the maximum distance to the rotation axis L1 of the cam member 32 is greater than the maximum distance from the first cam portion 321a to the rotation axis L1. The positioning portion 326 can form a large resistance to the detected member 33 when contacting the detected member 33 so that the detected member 33 stops rotating under the action of the resistance. At the same time, when the detection of the developing box 100 is completed, the positioning portion 326 abuts against the detected member 33 to prevent the cam member 32 from being separated from the detected member 33, so that the detected member 33 is in a state of being pressed by the positioning portion 326 when the detection is completed. Optionally, the force-bearing portion of the cam member 32 may also be arranged at other positions of the main body 324, as long as it can contact the fourth protrusion 314 and receive the driving force. Optionally, the driving force transmission portion may also be arranged as a slot structure; the cam portion of the cam member 32 may be arranged as one or more cam portions, the number and specific shape structure of the cam portions may be pre-set as needed, and the spacing distance between the multiple cam portions may also be adjusted as needed, for example, different settings may be made according to the printable amount of the new developing cartridge and the specifications of the developing cartridge, and different new cartridges and the printable amount, specifications, etc. of the new cartridges may be detected and distinguished by setting different numbers of cam portions and the shape structure of the cam portions; optionally, the movable member may not be a cam member, for example, the cam portion may be replaced by other structures such as a protrusion or a shifting block.

[0050] In this embodiment, the first elastic member 35 is a compression spring, and the first elastic member 35 has two free ends, one end of which abuts against the cam member 32, and the other end abuts against the first side wall 12. Figure 4As shown, the first elastic component 35 is located between the first side wall 12 and the cam component 32. In the direction of the rotation axis L1, the first elastic component 35 has an elastic force on the cam component 32. Optionally, the elastic component may also be made of elastic sponge, elastic rubber or other components with elastic force. Of course, an elastic arm may also be provided on the cam component 32 so that the elastic arm has an elastic force on the cam component 32 in the direction of the rotation axis L1.

[0051] like Figure 5 , Figure 6 As shown, in the present embodiment, the developing box also includes a limiting member 34 detachably mounted on the shell body 1, the limiting member 34 and the cam member 32 are located at the same end of the developing box 100, the limiting portion 341 is a protrusion arranged on the limiting member 34, the limiting member 34 also includes a square second mounting portion 342 and two symmetrically arranged arm portions 343, correspondingly, a mounting groove 123 and a notch portion 124 arranged on both sides of the mounting groove 123 are provided on the shell body 1, the mounting groove 123 and the square second mounting portion 342 on the limiting member 34 are adapted to each other, the second mounting portion 342 of the limiting member 34 can be installed in the mounting groove 123, the arm portion 343 of the limiting member 34 is clamped on the shell body 1 through the notch portion 124, so that the limiting member 34 is fixedly connected to the shell body 1, and the radial limiting portion 341 of the main body 324 of the cam member 32 protrudes in the direction close to the main body 324 of the cam member 32, a new developing box 100, The limiting portion 341 is pre-set to press against the first rib 323a. Since the first elastic member 35 has an elastic force on the cam member 32, the limiting portion 341 presses against the cam member 32 to limit the cam member 32 from moving in the direction away from the first side wall 12. During the rotation of the cam member 32, the limiting portion 341 presses against the rib. When the first notch 3231 or the second notch 3232 rotates to the position corresponding to the limiting portion 341, the first rib 323a or the second rib 323b is separated from the pressure of the limiting portion 341, and the cam member 32 moves in the direction of the rotation axis L1 of the cam member 32 away from the first side wall 12 under the action of the force of the first elastic member 35. In the developing box 100 of the present embodiment, after the second rib 323b is separated from the pressure of the limiting member 34, the force-bearing protrusion 322 is separated from the fourth protrusion 314, and the positioning portion 326 can contact and press the detected member 33.

[0052] like Figure 2 , Figure 4 , Figure 6As shown, the detected component 33 includes a first shift block 334, a second shift block 335 and a connecting shaft 336, wherein the first shift block 334 and the second shift block 335 respectively include a first assembly portion 3341 and a second assembly portion 3351 which are substantially cylindrical, and the first shift block 334 and the second shift block 335 are respectively assembled at two ends of the connecting shaft 336 through the first assembly portion 3341 and the second assembly portion 3351, so that the first shift block 334, the second shift block 335 and the connecting shaft 336 are fixedly connected, wherein the first shift block 334 and the second shift block 335 respectively include a first assembly portion 3341 and a second assembly portion 3351 which are substantially cylindrical, and the first shift block 334 and the second shift block 335 are respectively assembled at two ends of the connecting shaft 336 through the first assembly portion 3341 and the second assembly portion 3351, 4 is located at the first end 6 of the developing cartridge 100, that is, at the same end as the cam member 32 is located at the developing cartridge 100, the first shift block 334 can receive the force from the cam member 32; the second shift block 335 is located at the second end 7 of the developing cartridge 100, wherein a portion of the second shift block 335 extends from the opening of the second end cover and can cooperate with the detection member provided in the electronic photographic imaging device; the developing cartridge further includes a second elastic member, wherein in the present embodiment, the second elastic member is a torsion spring 333, and optionally, the torsion spring 333 can be installed The first shift block 334 may also be mounted on the second shift block 335. In this embodiment, the torsion spring 333 is mounted on the first assembly portion 3341 of the first shift block 334. The torsion spring 333 has two free ends. The first free end 3331 is pressed against a groove portion (not shown in the figure) on the first shift block 334, and the second free end 3332 is pressed against the housing 1. The second shift block 335 may swing along with the first shift block 334 when the first shift block 334 swings. For example, when the first shift block 334 is moved or pressed by the cam member 32, When swinging occurs, the first shift block 334 can cause the second shift block 335 to swing by driving the connecting shaft 336 to rotate; optionally, the first shift block 334 and the second shift block 335 are respectively located at the two ends of the connecting shaft 336, and can be integrally or separately arranged with the connecting shaft 336, and the second elastic member may not be installed on the detected component 33. During detection, when the first shift block 334 is out of contact with the cam member 32, the detected component 33 may rotate under the action of the force of the detection member F provided in the electronic photographic imaging device.

[0053] In this embodiment, the first elastic member 35 is located between the first side wall 12 and the cam member 32, and the limiting portion 341 of the limiting member 34 is pressed against the first rib 323a, so that the cam member 32 is restricted in a preset position. In this preset position, in the direction of the rotation axis L1, there is a spacing distance between the cam member 32 and the third gear portion 251 of the stirring member gear 25, so that the cam member 32 has movable space along the direction of the rotation axis L1 away from the first side wall 12.

[0054] Next, we will combine Figures 3 to 9 A process in which the developing cartridge 100 is detected by the electrophotographic image forming apparatus during the detection is described.

[0055] Usually, a detection component F is provided in an electronic photographic imaging device. The state of the detection component F does not change when no external force is applied. At this time, the state of the detection component F is the initial state, for example Figure 8 As shown, the detection member F is not affected by the force of the detected member 33 and is in the initial state; when the detection member F is acted upon by an external force, as shown in Figure 7 and Fig. 9 As shown, for example, when receiving a force from the detected member 33, its initial state is changed.

[0056] When a new, unused developing cartridge 100 is installed in an electronic photographic imaging device and the detection is not started, the limiting portion 341 of the limiting member 34 is pressed against the first rib 323a of the cam member 32, the first elastic member 35 is in a state of being compressed by the cam member 32, and the cam member 32 is limited to a preset position by the limiting member 34, such as Figure 4 The position of the cam member 32 is shown in FIG. 1 . In this position, the force-bearing protrusion 322 is on the motion track of the fourth protrusion 314. During the rotation of the fourth protrusion 314, the force-bearing protrusion 322 can receive the driving force from the fourth protrusion 314 to rotate the cam member 32. In an unused new developing cartridge 100, the first cam portion 321a of the cam member 32 is pre-set to press against the first shift block 334 of the detected member 33, and the torsion spring 333 is in a state of being compressed by the first shift block 334. At this time, the detected member 33 is in the first position, as shown in FIG. Figure 7 The diagram shows an example where the detected member 33 is in the first position. In this position, the second shift block 335 presses against the detecting member F in the electrophotographic image forming apparatus, so that the initial state of the detecting member F is changed.

[0057] Combined with reference Figures 2 to 9 When the electronic photographic imaging device starts to detect, the driving force receiving member 21 receives the driving force from the electronic photographic imaging device and transmits the driving force to the stirring member gear 25, so that the stirring member gear 25 rotates, and the fourth protrusion 314 provided on the stirring member gear rotates with the rotation of the stirring member gear 25. During the rotation of the fourth protrusion 314, the fourth protrusion 314 drives the force-receiving protrusion 322 of the cam member 32, so that the cam member 32 rotates around the direction a. As the cam member 32 rotates, the first cam portion 321a disengages from the first shift block 334. At this time, the first shift block 334 rotates the detected member 33 along the direction a to the position where the detected member 33 rotates under the elastic restoring force of the torsion spring 333. Figure 8The position shown is the second position of the detected member 33. At this position, the second shift block 335 does not press the detection member F set in the electronic photographic imaging device, and the detection member F is in the initial state. As the cam member 32 rotates, the first notch 3231 of the first rib 323a rotates to a position corresponding to the limiting portion 341. Since the first rib 323a is separated from the pressing of the limiting portion 341, the cam member 32 moves away from the first side wall 12 in the direction of the rotation axis L1 of the cam member 32 under the elastic force of the first elastic member 35 until the limiting portion 341 presses against the second rib 323b. As the cam member 32 rotates, the second cam portion 321b of the cam member 32 contacts and pushes the first shift block 335. 4, so that the detected member 33 rotates in the opposite direction of a to the first position, and at the same time, the torsion spring 333 is compressed by the first block 334 during the rotation of the first block 334, and the second block 335 applies a force to the detection member F, and the initial state of the detection member F is changed; with the rotation of the cam member 32, the second cam portion 321b is separated from the first block 334, and at this time, the first block 334 rotates in the direction of a under the action of the elastic restoring force of the torsion spring 333, that is, the detected member 33 rotates to the second position, and in the second position, the second block 335 does not resist the The detection member F disposed in the electronic photographic imaging device is pressed, and the detected member 33 does not change the initial state of the detection member F; as the cam member 32 rotates, the third cam portion 321c repeats the cooperation movement process of the second cam portion 321b and the detected member 33, so that the detected member 33 rotates from the second position to the first position along the opposite direction of a, and then rotates from the first position to the second position along the direction of a. When the second notch 3232 rotates to the position corresponding to the limiting portion 341, the second rib 323b is separated from the pressure of the limiting portion 341. Therefore, in the direction of the cam member rotation axis L1, the cam member 32 moves again a preset distance in the direction away from the first side wall 12 under the elastic force of the first elastic member 35 and causes the force-bearing protrusion 322 to break away from the fourth protrusion 314, and the force-bearing protrusion 322 breaks away from the movement trajectory of the fourth protrusion 314. The first shift block 334 is located on the movement trajectory of the positioning portion 326. After the force-bearing portion 322 breaks away from the contact with the fourth protrusion 314, the positioning portion 326 touches the detected member 33, and the cam member 32 stops rotating, and finally remains in the position as shown in FIG. Fig. 9 The position shown in the figure, at this time, the positioning portion 326 of the cam member 32 presses the first block 334, and the second block 335 presses the detection member F, and the initial state of the detection member F is changed. At this point, the imaging device completes the information detection of the developing box 100.

[0058] It should be noted that, in the present embodiment, the rotation of the detected component 33 does not exceed 180 degrees, and it can rotate back and forth between the first position and the second position within a preset angle; the shape and size of the cam portion of the cam component, the number of ribs, the distance between the ribs, etc. can be adjusted as needed, so that after the cam component 32 rotates one circle, the force-bearing protrusion 322 of the cam component 32 does not disengage from the fourth protrusion 314, and the cam component 32 can continue to rotate, and the first cam portion 321a, the second cam portion 321b and the third cam portion 321c can again apply a force to the detected component 33, so that the detected component 33 can rotate back and forth between the first position and the second position until the force-bearing protrusion 322 of the cam component 32 disengages from the fourth protrusion 314, the cam component 32 stops rotating, and the detection ends. In addition, when the detection is completed, the detected component may be in a state of pressing against the detection component or not pressing against the detection component. This is set differently according to different models of imaging devices. For example, in the present embodiment, the positioning portion 326 is removed, so that when the detection is completed, the detected component 33 is not subjected to the pressing force of the cam component 32 and is in the second position.

[0059] Example 2

[0060] like Fig.10 As shown, the structure of the developing box 200 of Example 2 is basically the same as that of the developing box 200 of Example 1. The similarities between the developing box 200 and the developing box 100 of Example 1 are not repeated here, and the differences are described below.

[0061] like Figures 10 to 12 As shown, the developing box 200 further includes a driving force transmission member 2031, and the driving force transmission member 2031 has a driving force transmission part; the driving force transmission member 2031 includes a flange part 20312 and a D-shaped hole 20313, and the driving force transmission member 2031 is assembled at the end of the stirring member 204 through the D-shaped hole 20313 and is located at the second end 207 in the length direction of the developing box 200. The driving force transmission member 2031 can rotate with the rotation of the stirring member 204. In this embodiment, the driving force transmission part is a card slot 20314 provided at one end of the driving force transmission member 2031 away from the second side wall 2013; optionally, the driving force transmission part can also be set as a transmission protrusion.

[0062] In this embodiment, the movable member is a cam member 2032. Fig.11 , Fig.12As shown, the cam component 2032 can rotate around its own rotation axis L1', and the cam component 2032 includes a main body 20324, a force-bearing portion, a rib 20323 and a cam portion, wherein the main body 20324 has a circumferential outer wall, a second circular through hole 20325 is provided in the center, and a circular end face 20328 is provided at one end of the main body 20324 away from the second side wall 2013. In this embodiment, the rib 20323 is threaded on the circumferential outer wall of the main body 20324 and forms a thread groove 20323a. The cam portion of the cam member 2032 is used to apply force to the detected member 2033 during the rotation of the cam member 2032. In this embodiment, the cam member 2032 is provided with three cam portions, which are located at the end of the cam member 2032 away from the second side wall 2013, namely the first cam portion 20321a, the second cam portion 20321b and the third cam portion 20321c. In this embodiment, on the end face 20328 of the main body 20324, a first protrusion 20327a, a second protrusion 20327b and a third protrusion 20327c are provided at intervals in the circumferential direction of the end face 20328. The first protrusion 20327a, the second protrusion 20327b and the third protrusion 20327c extend along the direction of the rotation axis L1' of the cam member 2032 in a direction away from the main body 2032, and the first cam portion 20321a, the second cam portion 20321b and the third cam portion 20321c are respectively located on the first protrusion 20327a, the second protrusion 20327b and the third protrusion 20327c. The force receiving portion is used to receive the driving force from the slot 20314 to rotate the cam member 2032. In this embodiment, the force receiving portion is a force receiving protrusion 20322 provided on the end surface 20328 of the main body 20324. The force receiving protrusion 20322 protrudes from the end surface 20328 in the direction of the rotation axis L1' away from the second side wall 2013, and extends along the radial direction of the main body 2032 in the direction close to the rotation axis L1' of the cam member 2032 so as to be able to cooperate with the slot 20314 and receive the driving force, so that the cam member 2032 rotates. Optionally, the force receiving protrusion 20322 of the cam member 2032 can also be provided at other positions of the main body 20324, as long as it can cooperate with the slot 20314 and receive the driving force. In this embodiment, the cam member 2032 also includes a positioning portion 20326, and the positioning portion 20326 is configured as a convex block provided on the first protrusion 20327a.In the direction of the rotation axis L1' of the cam member 2032, there is a spacing distance between the positioning portion 20326 of the cam member 2032 and the first cam portion 20321a, and the first cam portion 20321a is closer to the second side wall 2013 than the positioning portion 20326. The positioning portion 20326 is configured so that the maximum distance to the rotation axis L1' of the cam member 2032 is greater than the maximum distance from the first cam portion 20321a to the rotation axis L1', so that the positioning portion 20326 can contact the detected member 2033 at the end of detection and can form a large resistance to the detected member 2033 so that the detected member 2033 stops rotating under the action of the resistance. At the same time, when the detection of the developing box 200 is completed, the positioning portion 20326 abuts against the detected member 2033 to prevent the cam member 2032 from being separated from the detected member 2033, so that the detected member 2033 is in a state of being pressed by the positioning portion 20326 at the end of detection. Optionally, the driving force transmission portion can also be configured as a protrusion structure; the cam portion of the cam member 2032 can be set to one or more, the number and specific shape structure of the cam portions can be pre-set as needed, and the spacing distance between the multiple cam portions can also be adjusted as needed. For example, different settings can be made according to the printable amount of the new developing box and the specifications of the developing box. By setting different numbers of cam portions and the shape structures of the cam portions, different new boxes and the printable amount, specifications, etc. of the new boxes can be detected and distinguished; optionally, the movable member may not be a cam member, for example, the cam portion can be replaced by other structures such as a protrusion and a shift block.

[0063] like Figures 11 to 13As shown, in this embodiment, the limiting portion 20341 of the developing cartridge 200 is a limiting protrusion 20341 integrally formed with the shell, and the limiting protrusion 20341 protrudes in the radial direction of the main body 20324 of the cam member 2032 toward the main body 20324 of the cam member 2032. In a new developing cartridge 200, the limiting protrusion 20341 is pre-configured to be inserted into the thread groove 20323a formed by the rib 20323, and the limiting protrusion 20341 is inserted into one end of the thread groove 20323a close to the second side wall 2013, and the limiting protrusion 20341 can abut against the rib 20323, so that the cam member 2032 is limited to a preset position. In the preset position, when the cam member 2032 does not rotate, the movement of the cam member 2032 in the direction of the rotation axis L1' is restricted, and in this preset position, there is a spacing distance between the cam member 2032 and the second side wall 2013, and the force-bearing protrusion 20322 is located in the slot 20314; in the direction of the rotation axis L1', the force-bearing protrusion 20322 can move relative to the slot 20314, and the end face 20328 of the cam member 2032 abuts against the flange portion 20312, so that the movement of the cam member 2032 in the length direction of the developing box 200 toward the direction away from the second side wall 2013 is restricted; in the present embodiment, the driving force transmission member 2031 is coaxially arranged with the cam member 2032.

[0064] like Fig.10 , Fig.11As shown, in this embodiment, the detected component 2033 includes a first swing arm 20334, a second swing arm 20335, a torsion spring 20333, and a column 20336. The first swing arm 20334, the second swing arm 20335 and the column 20336 are integrally formed. The detected component 2033 is rotatably mounted in the mounting hole 2011 of the housing 201 through a mounting post (not shown) located at one end of the column 20336. The first swing arm 20334 can receive the force from the cam component 2032, and the second swing arm 20335 can push the detection component F of the imaging device after being installed in the electronic photographic imaging device. The torsion spring 20333 is sleeved on one end of the column 20336. The torsion spring 20333 has two free ends, the first free end presses against the second swing arm 20335, and the second free end presses against the housing 201. In this embodiment, in a new and unused developing cartridge 200, the torsion spring 20333 is compressed by the second swing arm 20335 and stores torque because the first swing arm 20334 is pressed by the cam member 2032, and at this time, the second swing arm 20335 can apply force to the detection member F when the developing cartridge 200 is installed in the electrophotographic imaging device. After the detection starts, when the first swing arm 20334 is separated from the cam member 2032 due to the rotation of the cam member 2032, the second swing arm 20335 can rotate by a preset angle under the elastic restoring force of the torsion spring 20333, so that the second swing arm 20335 can be separated from the pressure on the detection member F.

[0065] Next, we will combine Figures 10 to 16 The process in which the developing cartridge 200 is detected by the electrophotographic image forming apparatus during the detection is described in detail.

[0066] like Figures 11 to 13 As shown, when a new unused developing cartridge 200 is installed in an electronic photographic imaging device and the detection is not started, the limiting protrusion 20341 is inserted into the thread groove 20323a formed by the rib 20323 of the cam member 2032, and the limiting protrusion 20341 cooperates with the rib 20323, so that the cam member 2032 is limited to a preset position. At this preset position, Fig.11 and Fig.13 As shown, the force-bearing protrusion 20322 is located in the slot 20314, and the force-bearing protrusion 20322 is on the motion track of the slot 20314. During the rotation of the driving force transmission member 2031, the cam member 2032 can receive the driving force from the driving force transmission member 2031 and rotate. Fig.11 As shown, Fig.13 , Fig.14As shown, the first cam portion 20321a of the cam member 2032 is pressed against the first swing arm 20334 of the detected member 2033, so that the torsion spring 20333 is in a state of being compressed by the second swing arm 20335. At this time, the detected member 2033 is in an example of being in the first position. In this position, the second swing arm 20335 is pressed against the detection member F in the electronic photographic imaging device, so that the initial state of the detection member F is changed.

[0067] When the electronic photographic imaging device starts to detect, the driving force receiving member 2021 receives the driving force from the electronic photographic imaging device and transmits the driving force to the stirring member gear. The rotation of the stirring member gear drives the stirring member 204 to rotate. At this time, the driving force transmitting member 2031 set at the end of the stirring member 204 rotates together with the stirring member 204. Since the force-bearing protrusion 20322 of the cam member 2032 is assembled in the card groove 20314 of the driving force transmitting member 2031, the cam member 2032 rotates in the direction b as the driving force transmitting member 2031 rotates. As the driving force transmitting member 2031 rotates, the first cam portion 20321a disengages from the first swing arm 20334 of the detected member 2033. At this time, the second swing arm 20335 rotates in the direction b to the position as shown in FIG. 2 under the action of the elastic restoring force of the torsion spring 20333. Fig.15The position shown is the second position of the detected member 2033. In this position, the second swing arm 20335 does not press the detection member F set in the electronic photographic imaging device, and the initial state of the detection member is not changed. As the cam member 2032 rotates, the second cam portion 20321b of the cam member 2032 presses the first swing arm 20334, so that the second swing arm 20335 presses the detection member F set in the electronic photographic imaging device. At the same time, the torsion spring 20333 is rotated by the first swing arm 20334. The second swing arm 20335 is compressed during the process, and the second swing arm 20335 changes the state of the detection member F; with the rotation of the cam member 2032, the second cam portion 20321b is separated from the first swing arm 20334, and the second swing arm 20335 is rotated to the second position along the direction b under the elastic restoring force of the torsion spring 20333, so that the detection member F set in the electronic photographic imaging device is not pressed; with the rotation of the cam member 2032, the third cam portion 20321c repeats the second cam portion 203 21b cooperates with the detected member 2033. During the rotation of the cam member 2032, since the limiting protrusion 20341 is inserted into the thread groove 20323a of the cam member 2032 and cooperates with the rib 20323, during the rotation of the cam member 2032 along the direction b, under the cooperation of the limiting protrusion 20341, the cam member 2032 moves toward the direction close to the second side wall 2013 in the direction of the rotation axis L1' of the cam member 2032. In the direction of the rotation axis L1' of 2032, the force-bearing protrusion 20322 gradually disengages from the slot 20314. After the third cam portion 20321c disengages from the detected member 2033, as the cam member 2032 rotates, the force-bearing protrusion 20322 disengages from the slot 20314, and the positioning portion 20326 contacts the detected member 2033, so that the cam member 2032 stops rotating. At this time, the positioning portion 20326 of the cam member 2032 is in a position to press against the first swing arm 20334, as shown in FIG. Fig.15 As shown, the positioning portion 20326 is in a state of pressing against the first swing arm 20334, and the second swing arm 20335 is pressing against the detection member F, the initial state of the detection member F is changed, and the imaging device completes the information detection of the developing box 200; it should be noted that, in this embodiment, the rotation of the detected member 2033 does not exceed 180 degrees, and can rotate back and forth between the first position and the second position within a preset angle; optionally, when the developing box 200 completes the detection, the positioning portion 20326 can be pressed against the first swing arm 20334, or it can be the cam portion.

[0068] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of implementation of the present invention. Those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. For example, the shape and number of the cam portion of the cam member can be set as needed, the shape and size of the limiting portion, the number and shape of the convex ribs, and the number of openings on the convex ribs can all be adjusted as needed, etc.; and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A developing cartridge, detachably mounted in an electronic photographic imaging device provided with a detection member, the developing cartridge comprising: The housing has a storage chamber for storing the developer; a driving force receiving member for receiving a driving force from the electrophotographic image forming apparatus; Features: The developing box also includes: A movable member, a limiting portion, a detected member and a first elastic member, wherein the movable member and the limiting portion are located at the same end of the length direction of the developing cartridge; The movable member is a cam member, and the cam member comprises a main body, a force-bearing part, at least one cam part and at least one convex rib, wherein: the main body has a circumferential outer wall; the convex rib is arranged on the outer wall of the main body along the circumferential direction of the circumferential outer wall of the main body, and protrudes in the radial direction of the main body away from the rotation axis of the cam member, and the convex rib is provided with a notch; At least a portion of the first elastic member abuts against the cam member; During the rotation of the cam member, the limiting portion cooperates with the convex rib to enable the cam member to move along the rotation axis direction of the cam member.

2. The developing cartridge according to claim 1, characterized in that: During the rotation of the cam member, the convex rib is released from the pressing of the limiting portion so that the cam member moves away from the housing along the rotation axis of the cam member under the action of the force of the first elastic member.

3. The developing cartridge according to claim 1, wherein: The convex rib is in a thread shape on the circumferential outer wall of the main body and forms a thread groove.

4. The developing cartridge according to claim 1, wherein: The force-bearing portion is a force-bearing protrusion arranged at one end of the cam component, and the force-bearing protrusion extends along the radial direction of the main body toward a direction close to the rotation axis of the cam component.

5. The developing cartridge according to claim 1, characterized in that: At least one protrusion is provided at one end of the cam member and extends away from the main body along the rotation axis direction of the cam member, and the cam portion is provided on the protrusion.

6. The developing cartridge according to claim 1, characterized in that: The cam member further includes a positioning portion, wherein the positioning portion is spaced apart from at least one of the cam portions in a rotation axis direction of the cam member, and the positioning portion abuts against the detected member when detection is completed.

7. The developing cartridge according to claim 1, characterized in that: The detected component includes a first shift block, a connecting shaft and a second shift block, wherein the first shift block and the second shift block are respectively arranged at two ends of the connecting shaft in the length direction.

8. The developing cartridge according to claim 7, characterized in that: The developing box further includes a second elastic member installed on the first shift block or the second shift block.

9. The developing cartridge according to claim 8, characterized in that: The second elastic member is a torsion spring.

10. The developing cartridge according to claim 9, characterized in that: During the rotation of the movable member, when the movable member is disengaged from the detected member, the detected member rotates from the first position to the second position, and when the movable member applies a force to the detected member located at the second position, the detected member rotates from the second position to the first position; When the detected component is located at the first position, the second shift block presses the detection component F in the electrophotographic imaging device, so that the initial state of the detection component F can be changed; When the detected component is located at the second position, the second shift block does not press against the detecting component F in the electrophotographic imaging device.

11. The developer cartridge according to claim 1, characterized in that: The limiting portion is a limiting protrusion formed integrally with the housing.

12. The developing cartridge according to claim 1, characterized in that: The developing box further includes a limiting member that is detachable relative to the shell, and the limiting portion is arranged on the limiting member.

13. The developing cartridge according to any one of claims 1 to 12, characterized in that: The developing cartridge further includes a driving force transmitting portion for transmitting a driving force to the movable member during the detection so that the movable member rotates.

14. The developing cartridge according to claim 13, wherein: The developing box further includes a driving force transmission member, and the driving force transmission portion is a transmission protrusion or a clamping groove provided on the driving force transmission member.

Images