Developer Box

Abstract

The present invention provides a developing box that can be detachably installed in an electronic photographic imaging device. The developing box of the embodiment includes: a shell having a storage chamber for accommodating a developer; a detected component including at least one force-bearing portion; a guide member rotatably arranged at one end of the length direction of the developing box, the guide member being provided with a guide portion; a movable component being provided with a first force-applying portion and a guided portion. During detection, at least a portion of the guide portion abuts against the guided portion, so that the movable component moves in the length direction of the developing box as the guide member rotates; during the movement of the movable component, the first force-applying portion can apply a force to the force-bearing portion of the detected component to change the position of the detected component. The developing box with the above structure has a simple structure, solves the technical problem of high manufacturing precision requirements due to the use of a toothless gear device in the prior art, and avoids the risk of jamming during the detection process.

Description

[0001] Division Statement

[0002] This application is a divisional application of the Chinese invention patent application filed on April 27, 2020, with application number 202010345817.8 and invention name “Developer Box”. Technical Field

[0003] The present invention relates to a developing box, in particular to a developing box installed in an electronic photographic imaging device having a detecting member. Background Art

[0004] Generally, the developing cartridge is detachably used in an electronic photographic imaging device, wherein the developer in the developing cartridge can be used for imaging during the printing process, and 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 detect the developing cartridge to determine whether the developing cartridge is new or the printable amount of the developing cartridge and the specifications of the developing cartridge. Therefore, a detection component is provided in the electronic photographic imaging device, and a detected device is provided on the corresponding developing cartridge for detection and matching.

[0005] In the prior art, there is a developing box whose detection device is a gear device, which includes a stirring member gear and a toothless gear located on one side of the shell; the toothless gear includes a protrusion that can contact the detection member 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, and the protrusion on the toothless gear moves the detection member in the electronic photographic imaging device, and then transmits information with the electronic photographic imaging device to detect whether the developing box is new. Generally, the number of protrusions on the toothless gear is different, and the printable amount of the developing box can also be detected. When the stirring frame gear rotates to face the toothless portion of the toothless gear, the stirring frame gear is no longer engaged with the toothless gear. At this time, the stirring frame gear continues to rotate, but the toothless gear no longer rotates with it, and the detection is completed. When the developing box is disassembled and reinstalled, the toothless gear will not rotate.

[0006] However, in the prior art, the detected device of this structure needs to closely cooperate with the stirring member gear through the toothed part and the toothless part of the toothless gear, so it requires high manufacturing precision, increases production costs, and has a complex structure. In addition, during the detection contact process, jamming is likely to occur between the stirring member gear and the toothless gear, thus affecting the detection result. Summary of the invention

[0007] The purpose of the present invention is to provide a new developing box to solve the technical problems of complex structure, high manufacturing precision requirement and risk of jamming of the toothless gear device.

[0008] To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a developing box, which can be detachably installed in an electronic photographic imaging device, and the developing box includes: a shell, which has a accommodating chamber for accommodating a developer; the developing box also includes: a guide, which is rotatably arranged at one end of the developing box in the length direction, and the guide is provided with a guiding part; a movable component, which is provided with a first force-applying part and a guided part; and a detected component, which includes at least one force-receiving part.

[0009] The developing box with the above structure adopts a gear device including a guide, a movable member and a detected member to replace the gear device with a toothless gear; during the detection period, the guide receives the driving force and exerts a force on the movable member during the rotation process to cause the movable member to move, and during the movement of the movable member, the first force-applying part can exert a force on the force-bearing part of the detected member, so that the detected member can rotate back and forth, and then the detected member cooperates with the electronic photographic imaging device to realize detection; since at least one force-bearing part is provided, when multiple force-bearing parts are provided, the movable member can exert a force on multiple force-bearing parts in turn, so that the detected member can realize multiple reciprocating rotations, thereby realizing multiple detections. The developing box with this structure 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.

[0010] Further, during the detection, the guided portion abuts against the guiding portion.

[0011] Furthermore, the guide portion is a spiral groove arranged on the surface of the guide member.

[0012] The developing box with the above structure has a guiding portion adopting a spiral groove with a relatively simple structure. Through the cooperation of the spiral groove and the guided portion, a force can be applied to the movable member so that the movable member can move in the length direction of the developing box under the guidance of the spiral groove. The developing box with this structure avoids the use of a complex toothed gear, has a simple structure and low manufacturing cost, and at the same time avoids the risk of jamming caused by the use of a toothed gear.

[0013] Furthermore, the guide member is further provided with a plane portion, and the plane portion is perpendicular to the axial direction of the guide member.

[0014] The developing box with the above structure is also provided with a planar portion in the guide, and the planar portion is perpendicular to the axial direction of the guide. The developing box with this structure will not move with the rotation of the guide when the guided portion of the movable component moves to the planar portion, thereby allowing the developing box to end detection. It has a simple structure and low manufacturing cost, and avoids the risk of jamming caused by using toothless gears.

[0015] Further, the movable component includes a main body, the main body is provided with a first mounting hole, the first force-applying portion is provided on an outer wall of the main body, and the guided portion is located in the first mounting hole.

[0016] Furthermore, the movable component also includes a clamping block that can be removed from the main body, the guided part is arranged on the clamping block, the circumferential wall of the first mounting hole is provided with a first through hole, the clamping block is installed on the outer wall of the main body, and the guided part passes through the first through hole and extends radially inward along the first mounting hole.

[0017] The developer box with the above structure has the guided part arranged to be detachable from the main body, which has the advantage of facilitating the installation of the movable component on the guide member, making the overall structure simple and easy to install.

[0018] Furthermore, the force-bearing portion is a protrusion having an inclined surface or an arc-shaped surface.

[0019] In the developing box with the above structure, the force-bearing part is arranged as a protrusion with an inclined surface or an arc-shaped surface, which can make the detected component rotate when the protrusion is subjected to the force of the movable component. The protrusion is provided with an inclined surface or an arc-shaped surface, so that the movable component can move on the protrusion and apply a force to the protrusion, so that the detected component rotates. This structure has a better coordination effect, a simpler structure and a low manufacturing cost.

[0020] Furthermore, during detection, the movable member moves from the third position to the fourth position, and in the process of the first force-applying part applying force to the force-receiving part, when the first force-applying part moves toward the direction close to the top of the protrusion, the detected member rotates toward the second position, and when the first force-applying part moves away from the top of the protrusion, the detected member rotates toward the first position.

[0021] With the developing box having the above structure, when the movable member moves from the third position to the fourth position, the detected member can rotate back and forth between the first position and the second position, thereby being detected.

[0022] Further, the developing box further includes an elastic member configured to apply a force to the detected member so that the detected member returns from the second position to the first position.

[0023] The developing box having the above structure has the advantage that when the detecting member on the device side cannot return the detected member to the first position or the detected member cannot return to the first position smoothly, the elastic member can make the detected member return to the first position smoothly.

[0024] Furthermore, the elastic component is a compression spring, an elastic sponge, an elastic rubber, an elastic arm or a rebound rod.

[0025] The developer box with the above structure, wherein the elastic component is a compression spring, an elastic sponge, an elastic rubber, an elastic arm or a rebound rod, has a simpler structure, a better matching effect and a low manufacturing cost.

[0026] Furthermore, the developing box also includes a rotating member, and the guiding member is arranged on the rotating member.

[0027] In the developer box with the above structure, the guide member is arranged on the rotating member, which has the advantage of avoiding the situation where the guide member has a more complicated structure caused by the guide member being arranged separately, and can make the developer box structure simpler.

[0028] Further, the rotating part is any one of a stirring member gear, a developing roller gear, a powder feeding roller gear, a stirring member, a developing roller or a powder feeding roller.

[0029] The developing box with the above structure, the stirring member gear, the developing roller gear, the powder feeding roller gear, the stirring member, the developing roller or the powder feeding roller are all common components in the developing box, and these components can rotate by receiving the driving force from the driving force receiving member. The guide members are arranged on these components, which actually reduces some parts of the developing box, saves the space occupied by the parts, and simplifies the structure of the developing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the developing cartridge of Embodiment 1;

[0031] Figure 2 is a partially exploded schematic diagram of the developing cartridge of Example 1;

[0032] Figure 3 is another partial exploded schematic diagram of the developing cartridge of Example 1;

[0033] Figure 4 is a schematic structural diagram of the movable component of Example 1;

[0034] Figure 5 is a schematic structural diagram of the detected component in Example 1;

[0035] Figure 6 is a schematic diagram of the matching relationship between the detected component, the movable component and the guide member when the detected component of Example 1 is in the first position;

[0036] Figure 7 is a schematic diagram of the matching relationship between the detected component, the movable component and the guide member when the detected component of Example 1 is in the second position;

[0037] Figure 8 is a schematic diagram of the coordination relationship between the detected component, the movable component and the detecting component when the detected component of Example 1 is in the first position;

[0038] Fig. 9 is a cross-sectional view taken along a direction parallel to the rotation axis of the stirring member when the movable member of Embodiment 1 is in the third position;

[0039] Fig.10 is a schematic diagram of the coordination relationship between the detected component, the movable component and the detecting component when the detected component of Example 1 is in the second position;

[0040] Fig.11 is a partial exploded schematic diagram of a developing cartridge of Example 2;

[0041] Fig.12 is a partially exploded schematic diagram of a developing cartridge of Example 3;

[0042] Fig.13 is a partially exploded schematic diagram of a developing cartridge of Example 4;

[0043] Fig.14 is a partially exploded schematic diagram of a developing cartridge of Example 5;

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

[0045] Example 1

[0046] like Figures 1 to 3As shown, the developing box 100 includes a housing 1, a transmission assembly 2, a detection device 3, 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 housing 1, and the developer containing chamber 11 is provided with a first side wall 12 and a second side wall 13 at both ends in the length direction of the developing box 100, and the transmission assembly 2 is installed on the first side wall 12, and a first end cover 14 is also provided 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. In this embodiment, in the length direction of the developing box 100, one end of the developing box 100 having the transmission assembly 2 is called the first end 6, and the other end opposite thereto is called the second end 7. The stirring member 4 has a first end 41 and a second end (not shown in the figure), and 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 housing 1; a first convex column 121 is also provided on the first side wall 12 of the developing box 100, and the first convex column 121 is provided with a second through hole 122, and the first end 41 of the stirring member 4 extends from the second through hole 122 to receive the driving force from the transmission assembly 2; 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).

[0047] like Figure 2As shown, the transmission assembly 2 is installed on the outer side of the first side wall 12 of the shell 1. In the present embodiment, the transmission assembly 2 includes a driving force receiving member 21, a stirring member gear 22, a powder feeding roller gear 23 and a developing roller gear 24, wherein the driving force receiving member 21 has a first gear portion 211 and a second gear portion 212, and the driving force receiving member 21 can receive the driving force from the side of the electronic photographic imaging device and rotate; the stirring member gear 22 includes a third gear portion 221 and a D-shaped mounting hole 222, and the stirring member gear 22 is installed on the first end portion 41 of the stirring member 4 through the D-shaped mounting hole 222; the powder feeding roller gear 23 and the developing roller gear 24 are respectively arranged at the ends of the powder feeding roller (not shown in the figure) and the developing roller 5. The first gear portion 211 of the driving force receiving member 21 is meshed with the powder feeding roller gear 23, and the second gear portion 212 of the driving force receiving member 21 is meshed with the stirring member gear 22 and the developing roller gear 24. When the developing box 100 is in a working state, the driving force receiving member 21 rotates by receiving the driving force from the side of the electronic photographic imaging device, and the driving force is transmitted to the powder feeding roller (not shown) by driving the powder feeding roller gear 23 to rotate through the first gear portion 211, so that the powder feeding roller (not shown) rotates; the second gear portion 212 of the driving force receiving member 21 drives the developing roller gear 24 and the stirring member gear 22 to rotate, and then transmits the driving force to the developing roller 5 and the stirring member 4 so that the developing roller 5 and the stirring member 4 rotate.

[0048] The following combination Figures 1 to 4 , Fig. 9 The specific structure of the detected device 3 of this embodiment is described in detail.

[0049] The detected device 3 includes a guide 31, a movable member 32 and a detected member 33, and the guide 31, the movable member 32 and the detected member 33 are all arranged at the second end 7 of the developing box 100. In this embodiment, the guide 31 is a spiral rod structure, which is installed on the second end of the stirring member 4. The driving force received by the driving force receiving member 21 is transmitted to the stirring member 4 through the cooperation between the second gear part 212 and the stirring member gear 22, so that the stirring member 4 rotates. Since the guide 31 is arranged on the second end of the stirring member 4, the guide 31 can rotate with the rotation of the stirring member 4; the guide part is arranged on the guide 31. In this embodiment, the guide part is a spiral rod arranged on the outer circumferential surface of the guide 31. Groove 311, the spiral groove 311 has two ends, the end close to the second side wall 13 is the first groove portion 312, and the end away from the second side wall 13 is the second groove portion (not shown in the figure); a plane portion 313 is also provided on the circular outer surface of the guide member 31, the plane portion 313 is basically perpendicular to the axial direction of the guide member 31 (that is, the direction of the rotation axis), the plane portion 313 is adjacent to the spiral groove 311 and the distance from the plane portion 313 to the second side wall 13 in the length direction of the developing box 100 is farther than the distance from the spiral groove 311 to the second side wall 13. Optionally, there are many positions for setting the guide member 31 and ways of receiving the driving force. For example, the guide member 31 can be set on other rotating members of the developer box 100 that can receive the driving force and rotate, and then the guide member 31 rotates with the rotation of the rotating member. Such a rotating member can be any one of the stirring member gear 22, the developing roller gear 24, the powder feeding roller gear 23, the stirring member 4, the developing roller 5 and the powder feeding roller (not shown); in addition, the guide member 31 may not be set on the rotating member, but may be rotated by receiving the driving force transmitted by the transmission assembly 2 through a structure such as a gear portion or a transmission block that cooperates with the transmission assembly 2. In this embodiment, the guide member is set at the second end of the stirring member 4 is only a better choice.The movable member 32 includes a first force-applying portion and a guided portion. In this embodiment, the movable member 32 has a main body 321 and a block 322 that can be removed from the main body 321. The block 322 is also provided with a mounting portion 323 and a rod 324. The guided portion 324a of the movable member 32 is located at one end of the rod 324. The main body 321 of the movable member 32 is also provided with a first mounting hole 325 and a mounting groove 327. The circumferential wall of the first mounting hole 325 is provided with a first through hole 326. The mounting portion 323 on the block 322 is adapted to the mounting groove 327. When the block 322 is assembled on the main body 3 21, the mounting portion 323 of the block 322 is assembled on the mounting groove 327, the rod portion 324 passes through the first through hole 326 and is inserted into the first mounting hole 325 of the main body 321 and extends into the first mounting hole 325 along the radial direction of the first mounting hole 325, so that the guided portion 324a is located in the first mounting hole 325; the installation of the movable member 32 can first pass the guide member 31 through the first mounting hole 325 of the main body 321, and then assemble the block 322 on the outer wall of the main body 321, and make the rod portion 324 inserted into the spiral groove 311, thereby completing the installation of the movable member 32 on the guide member 31.

[0050] like Figure 3 , Figure 4 , Fig. 9As shown, the guided portion 324a of the movable member 32 is located at one end of the rod portion 324. After the movable member 32 is installed on the guide member 31, the guided portion 324a is inserted into the spiral groove 311 of the guide member 31. During the rotation of the guide member 31, due to the rotation of the spiral groove 311, the guided portion 324a can be subjected to the force of the spiral groove 311 to be guided by the spiral groove 311. The outer wall of the main body 321 of the movable member 32 is provided with a protrusion 328, and the protrusion 328 extends outwardly in the radial direction of the first mounting hole 325. The first force-applying portion 328a is provided on the protrusion 328. 28 and is configured to apply a force to the detected member 33 during detection; optionally, for a new, unused developing cartridge 100, the rod portion 324 can be in contact with or out of contact with the spiral groove 311 after being inserted into the spiral groove 311, as long as the guided portion 324a can contact with the spiral groove 311 and receive force when the spiral groove 311 rotates during detection; in addition, the guided portion can also be configured as a retractable protrusion structure located in the first mounting hole 325, as long as the guided portion can cooperate with the spiral groove 311 after the movable member 32 is installed on the guide member 31. A second mounting hole 331 and a groove 332 are provided on the detected component 33, a second boss 131 and a third boss 132 are provided on the second side wall 13, and a fourth boss (not shown in the figure) and an opening 133 are provided on the second end cover 15. The second mounting hole 331 has two ends, one end of which is sleeved on the second boss 131, and the other end is sleeved on the fourth boss body (not shown in the figure), so that the detected component 33 can be supported between the second side wall 13 and the second end cover 15 for reciprocating rotation. The third boss 132 on the second side wall 13 is inserted into the groove 332 of the detected component 33, which can limit the rotation of the detected component 33.An opening 133 is provided on the second end cover 15, so that when the developing box 100 is installed in the electronic photographic imaging device, the detected component 33 can contact the external detection component; the detected component 33 has a force-bearing portion that receives the force from the movable component 32 and a second force-applying portion 333 that applies a force to the detection component arranged in the imaging device. One or more force-bearing portions can be provided, and the force-bearing portion can be provided as a protrusion with an inclined surface or a protrusion with an arc surface. The number and specific shape structure of the force-bearing portions can be pre-set according to the printable amount of the new developing box 100 and the specifications of the developing box 100. By providing different numbers of force-bearing portions, new boxes of different models and the printable amount of the new boxes can be detected. Printing volume, specifications, etc.; in the present embodiment, the force-bearing parts of the detected component 33 are provided with two, namely the first protrusion 334 and the second protrusion 335 of the same shape and structure, and two inclined surfaces are provided on the first protrusion 334 and the second protrusion 335, namely the first inclined surface 33a and the second inclined surface 33b, and the connection between the first inclined surface 33a and the second inclined surface 33b (namely the top 33c of the first protrusion and the second protrusion) is an arc surface; the first protrusion 334 and the second protrusion 335 are spaced apart from each other by a preset distance, and smooth surfaces of the same shape and structure are provided on both sides of the first protrusion 334 and the second protrusion 335, namely the first surface 33d, the second surface 33e and the third surface 33f.

[0051] Next, we will combine Figures 3 to 10 The interaction process between the guide 31, the movable member 32, the detected member 33 and the detection member F provided in the electrophotographic imaging device is introduced. Usually, the detection member F is provided in the electrophotographic imaging device. When a new developing cartridge 100 is installed in the electrophotographic imaging device and is not in operation, the detection member F may be subjected to the pressure of the detected member 33, such as Figure 8 As shown, at this time, the detection member F is subjected to the pressing force of the detected member 33 and is in a state relative to the developing box 100. In this embodiment, this state is referred to as the initial state of the detection member F. During the detection process of the developing box 100 by the electronic photographic imaging device, the first protrusion 334 or the second protrusion 335 of the detected member 33 may be subjected to the pressing force of the movable member 32 so that the detected member 33 rotates, and the detected member 33 further presses the detection member F, and the initial state of the detection member F may be further changed. Fig.10 An example is shown in which the initial state of the detection member F is changed.

[0052] like Figure 3 , Figure 5 , Figure 6 , Figure 8 , Fig. 9As shown, when a new unused developing cartridge 100 is loaded into an electronic photographic imaging device and the detection is not started, the movable member 32 is pre-set at a position, and the rod portion 324 of the movable member 32 is inserted into the first groove portion 312 of the spiral groove 311. At this time, the position of the movable member 32 is the third position, as shown in FIG. Fig. 9 As shown, in the third position, the movable member 32 can be subjected to the force of the spiral groove 311 when the guide 31 rotates and can move in the length direction of the developing box 100 under the guidance of the spiral groove 311; the first force-applying portion 328a of the movable member 32 does not press the force-bearing portion of the detected member 33, and the first force-applying portion 328a abuts on the first surface 33d of the detected member 33. At this time, the position of the detected member 33 is the first position. In the first position, the detected member 33 is configured to press the detection member F provided in the imaging device. At this time, the detection member F is in the initial state; as shown in FIG. Figure 6 As shown, the detected member 33 is in the first position.

[0053] like Figure 2 , Figures 4 to 10 As shown, 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 4 through the stirring member gear 22, so that the stirring member 4 rotates. At this time, the guide 31 arranged at the second end of the stirring member 4 rotates with the rotation of the stirring member 4. In the length direction of the developing box 100, as the guide 31 rotates, the guided portion 324a is subjected to the force of the spiral groove 311 and guided by the spiral groove 311, so that the movable member 32 moves in the direction away from the second side wall 13. In the process of the movable member 32 moving, the first force applying portion 328a arranged on the movable member 32 first presses against the first The first inclined surface 33a of the protrusion 334, at this time, the detected member 33 rotates along the direction a under the pressure of the first force-applying portion 328a, and the detected member 33 presses the detection member F set in the electronic photographic imaging device to change the initial state of the detection member F; in the process that the first force-applying portion 328a of the movable structure 32 moves along the first inclined surface 33a of the first protrusion 334 toward the direction close to the top 33c of the first protrusion 334, under the pressure of the first force-applying portion 328a, the detected member 33 gradually rotates along the direction a, and with the rotation of the detected member 33, the detection member F set in the electronic photographic imaging device gradually moves under the push of the detected member 33, as shown in FIG. Figure 5 , Figure 7 , Fig.10As shown, when the first force-applying portion 328a moves to the top 33c, the detected member is in the second position. At the second position, the detected member 33 has rotated to the maximum angle along the direction a. When the first force-applying portion 328a passes over the top 33c of the first protrusion 334 and moves along the second inclined surface 33b of the first protrusion 334 toward the second surface 33e, the detecting member F provided in the electronic photographic imaging device has a restoring force to restore to the initial state, so that the detecting member F has a certain pressing force on the detected member 33. Therefore, the detected component 33 gradually rotates in the opposite direction of a under the action of the force of the detection component F. When the first force-applying portion 328a presses against the second surface 33e (that is, the first force-applying portion 328a is separated from the first protrusion 334), the detected component 33 returns to the first position, and the detection component F can be restored to its initial state. At this point, the detected component 33 completes a reciprocating rotation between the first position and the second position. As the movable member 32 continues to rotate, the first force-applying portion 328a of the movable member 32 presses against the second protrusion of the detected member 33. 335, the detected member 33 repeats the movement process when the first force-applying portion 328a presses against the first protrusion 334, and the detected member 33 realizes a reciprocating rotation between the first position and the second position and continuously changes the state of the detection member during the rotation process; during the movement of the movable member 32, the guided portion 324a finally moves to the plane portion 313 of the guide member 31, at which time the guided portion 324a is separated from the spiral groove 311, and the movable member 32 is in the fourth position. Since the plane portion 313 is perpendicular to the axial direction of the guide member 31, at this time the rod portion 324 The movable member 32 does not move with the rotation of the guide 31, the first force-applying portion 328a abuts against the third surface 33f, the detected member 33 is located at the first position, and the detecting member F returns to its initial state; at this point, the electronic photographic imaging device completes the detection of the developing box 100; during the above-mentioned detection, the movable member 32 cannot return to the third position from the fourth position by itself after moving from the third position to the fourth position, that is, the process is irreversible; if the movable member 32 needs to be adjusted back to the third position from the fourth position, the operator needs to manually adjust it.

[0054] Example 2

[0055] like Fig.11As shown, the structure of the developing box 200 of Example 2 is basically the same as that of the developing box of Example 1, and the main difference is that the developing box 200 in Example 2 also includes an elastic member; in this embodiment, the elastic member is a compression spring 208, and the compression spring 208 has two free ends, one end of which is sleeved on the mounting column 20336 of the detected member, and the other end is pressed on the second end cover 2015, and the compression spring 208 has an elastic force on the detected member 2033; the compression spring 208 can be compressed and store elastic force during the process of the detected member 2033 rotating from the first position to the second position, and release the elastic force during the process of the detected member 2033 rotating from the second position to the first position, so that the detected member 2033 can smoothly return from the second position to the first position.

[0056] Example 3

[0057] like Fig.12 As shown, the structure of the developing box 300 of the embodiment 3 is basically the same as that of the developing box of the embodiment 1, and the main difference is that the developing box 300 in the embodiment 3 also includes an elastic member; in this embodiment, the elastic member is an elastic sponge 308, one end of the elastic sponge 308 abuts on the detected member 3033, and the other end abuts on the second end cover 3015, and the elastic sponge 308 has an elastic force on the detected member 3033; the elastic sponge 308 can be compressed and store elastic force during the rotation of the detected member 3033 from the first position to the second position, and release the elastic force during the rotation of the detected member 3033 from the second position to the first position, so that the detected member 3033 can smoothly return from the second position to the first position. Optionally, the elastic member can also use elastic rubber.

[0058] Example 4

[0059] like Fig.13 As shown, the structure of the developing box 400 of the fourth embodiment is basically the same as that of the developing box of the first embodiment, and the main difference is that the developing box 400 in the fourth embodiment further includes an elastic member; in this embodiment, the elastic member is an elastic arm 408 fixed at one end on the detected member 4033, and the elastic arm 408 has a free end 4081, and the free end 4081 abuts on the second end cover 4015, and the elastic arm 408 exerts elastic force on the detected member 4033. The elastic arm 408 can be compressed and store elastic force during the rotation of the detected member 4033 from the first position to the second position, and release the elastic force during the return of the detected member from the second position to the first position, so that the detected member 4033 can smoothly return from the second position to the first position.

[0060] Example 5

[0061] like Fig.14As shown, the structure of the developing box 500 of Example 5 is basically the same as that of the developing box of Example 1, and the main difference is that the first force-applying portion of the movable member 5032 in Example 5 is arranged on a cylindrical protrusion 50324; the developing box 500 also includes an elastic member 508. In this embodiment, the elastic member 508 is a rebound rod 508 arranged on the detected member 5033, and the rebound rod 508 has an abutting portion 5081, which abuts against the second side wall 5013, and the protrusion 50324 is pressed against the detected member 5033. A gap is formed between the rebound rod 508 and the first protrusion 50334 and the second protrusion 50335 of the detected member 5033 so that the protrusion 50324 will not interfere with the rebound rod 508 during the movement. When the detection component 5033 rotates from the first position to the second position, the rebound rod 508 is stretched because the abutting portion 5081 of the rebound rod 508 abuts against the second side wall 5013. When the detection component 5033 returns from the second position to the first position, the elastic restoring force of the rebound rod 508 allows the detection component 5033 to rotate smoothly from the second position to the first position.

[0062] 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 described in the aforementioned embodiments, or replace some of the technical features therein with equivalents. For example, the shape and number of the force-bearing parts of the detected component can be set as needed, etc.; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the present invention.

Claims

1. A developing box, comprising: The housing has a receiving chamber for receiving the developer, wherein the receiving chamber is provided with a first side wall located at a first end of the developing box and a second side wall located at a second end of the developing box; The detected component is arranged at the second end of the developing box and includes at least one force-bearing portion; characterized in that: A guide member rotatably disposed at the second end of the developing box, wherein the guide member is provided with a guide portion; A movable member is disposed at the second end of the developing box, and the movable member is provided with a first force-applying portion and a guided portion; During detection, at least a portion of the guiding portion abuts against the guided portion, so that the movable member moves in the length direction of the developing box as the guide rotates; during the movement of the movable member, the first force-applying portion can apply a force to the force-bearing portion of the detected member.

2. The developing cartridge according to claim 1, characterized in that: During detection, the movable member moves in a direction away from the second side wall as the guide rotates.

3. The developing cartridge according to claim 1, wherein: The guide is provided at an end of a stirring member, the stirring member is rotatable about a rotation axis thereof to stir the developer stored in the accommodating chamber, and the guide is rotatable along with the rotation of the stirring member.

4. The developing cartridge according to claim 3, characterized in that: A transmission assembly is mounted on the first side wall, the transmission assembly including a stirring member gear and a driving force receiving member for receiving a driving force from the electrophotographic image forming apparatus side, the stirring member gear meshing with a gear portion of the driving force receiving member.

5. The developing cartridge according to claim 1, characterized in that: The force-bearing portion is a protrusion with an inclined surface or an arc-shaped surface; when the movable member moves in the length direction of the developing box as the guide rotates, the protrusion is subjected to the force of the movable member so that the position of the detected member changes.

6. The developing cartridge according to claim 1, characterized in that: The detected component is provided with a plurality of force-bearing parts spaced apart in the length direction, and the movable component can sequentially apply force to the plurality of force-bearing parts during detection.

7. The developing cartridge according to claim 1, characterized in that: The guiding part is a spiral groove arranged on the surface of the guiding member, and the guided part is inserted into the spiral groove; during the rotation of the guiding member, the guided part is subjected to the force of the spiral groove so as to be guided by the spiral groove.

8. The developing cartridge according to claim 1, characterized in that: The guide member is further provided with a plane portion, which is perpendicular to the axial direction of the guide member; when the guided portion moves to the plane portion, the movable member no longer moves with the rotation of the guide member.

9. The developing cartridge according to claim 1, characterized in that: The movable member includes a main body, the main body is provided with a first mounting hole, the first force applying portion is provided on an outer wall of the main body, and the guided portion is located in the first mounting hole.

10. The developing cartridge according to claim 9, characterized in that: The movable component also includes a clamping block that can be removed from the main body, the guided part is arranged on the clamping block, the circumferential wall of the first mounting hole is provided with a first through hole, the clamping block is installed on the outer wall of the main body, and the guided part passes through the first through hole and extends inwardly along the radial direction of the first mounting hole.

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