A developing device

Abstract

A developing device for being detachably installed in an image forming device, comprising: a cartridge body having a first end and a second end in a first direction, and a third end and a fourth end in a second direction; a developing roller rotatably arranged on the cartridge body along the first direction, the developing roller being located at the third end of the cartridge body in the second direction, the second direction intersecting the first direction; a power receiving portion for receiving power provided by the image forming device and arranged at the first end of the cartridge body; a moving member arranged on the cartridge body and driven by the power receiving portion to move; and a detected portion arranged at the second end of the cartridge body and in transmission connection with the moving member, the detected portion being driven by the moving member to move from a non-detected position in which the detected portion is not triggered to a detected position in which the detected portion is triggered. The present application provides a new detection mode different from the prior art, and the detection structure is simple and the detection is not prone to errors.

Description

Technical Field

[0001] The present invention relates to an image forming device, and more particularly to a developing device. Background Art

[0002] A developing device is a common printing consumable used in image forming devices (such as laser printers). Different developing devices have different models and specifications, and are compatible with different image forming device models. Therefore, the image forming device needs to detect the developing device's model and specifications to confirm compatibility. Existing technologies often use chips, detection gears, and other methods for detection. However, chips are expensive, and high costs can lead to higher prices for developing devices. Detection gears are a mechanical structure that can completely replace chips or provide some information to partially replace them, reducing the amount of information stored on the chip and thus reducing chip costs.

[0003] The existing detection gear arrangement is relatively complicated, and detection errors are prone to occur, resulting in the problem that the developing device cannot be correctly detected by the image forming device. Summary of the Invention

[0004] According to one aspect of the present invention, there is provided a developing device for detachably mounting in an image forming device, wherein the image forming device is provided with a detecting member, comprising:

[0005] The box body has a first end and a second end in the first direction, and has a third end and a fourth end in the second direction;

[0006] a developing roller rotatably disposed on the cartridge body along a first direction, the developing roller being located at a third end of the cartridge body in a second direction, the second direction intersecting the first direction;

[0007] a power receiving portion, which is used to receive power provided by the image forming device and is disposed at the first end of the box body;

[0008] a moving part, which is provided on the box body and moves when driven by the power receiving part;

[0009] The detected part is arranged at the second end of the box body, is transmission-connected with the moving part, and is driven by the moving part to move from a non-detection position that does not trigger the detection part to a detection position that triggers the detection part.

[0010] The present invention provides a new detection method different from the prior art, which has a simple detection structure, is less prone to detection errors, and can ensure that the developing device is correctly detected by the image forming device.

[0011] In some embodiments, the developing device further includes a first inclined portion and a second inclined portion, wherein the first inclined portion has a first slope relative to the second direction, and the second inclined portion has a second slope relative to the second direction;

[0012] The detected portion can be driven by the moving member to move from a first position to a second position, and the detected portion is displaced relative to the box body in a first direction during the movement from the first position to the second position;

[0013] When the detected portion is in the first position and moves from the non-detection position to the detection position, the detection member is triggered by the first inclined portion to move at a first speed;

[0014] When the detected portion is in the second position and moves from the non-detection position to the detection position, the detection member is triggered by the second inclined portion to move at a second speed;

[0015] The first speed is different from the second speed.

[0016] In some embodiments, the first inclined portion and the second inclined portion are provided on the detected portion;

[0017] When the detected portion is in the first position and moves from the non-detection position to the detection position, the first inclined portion contacts the detection member and drives the detection member to move at a first speed;

[0018] When the detected portion is at the second position and moves from the non-detection position to the detection position, the second inclined portion contacts the detection member and drives the detection member to move at a second speed.

[0019] In some embodiments, the first slope is different from the second slope.

[0020] In some embodiments, the first inclined portion is a first side, and the second inclined portion is a second side.

[0021] In some embodiments,

[0022] The first inclined portion and the second inclined portion are not provided on the detected portion, and the detected portion is rotatably connected to the moving member;

[0023] When the detected portion is in the first position and swings from the non-detection position to the detection position, the detected portion rotates under the action of the first inclined portion and triggers the detection member to move at a first speed;

[0024] When the detected portion is in the second position and swings from the non-detection position to the detection position, the detected portion rotates under the action of the second inclined portion and triggers the detection member to move at a second speed.

[0025] In some embodiments, the developing device further includes a second protective cover, the first inclined portion is a first inclined surface provided on the second protective cover, and the second inclined portion is a second inclined surface provided on the second protective cover;

[0026] The first slope is different from the second slope.

[0027] In some embodiments, the first slope is greater than the second slope, such that the first speed is less than the second speed.

[0028] In some embodiments, the moving member is movably provided on the box body so as to be movable from a first position to a second position, and the detected portion is movable from the first position to the second position along with the moving member.

[0029] In some embodiments, the moving part can swing around a swing axis intersecting with the first direction; the moving part has a driven part, the driven part is located at the first end of the box body, the moving part receives the first force through the driven part and thus swings around the swing axis, the detected part is transmission-connected to the moving part, so that the detected part swings from the non-detection position to the detection position as the moving part swings.

[0030] In some embodiments, the developing device further includes a first elastic member, which is disposed between the box body and the movable member, and the first elastic member applies a force toward the first end of the box body to the movable member, so that the movable member has a tendency to move toward the first end of the box body to the first position or remain in the first position.

[0031] In some embodiments, the developing device further includes a second elastic member, which is disposed between the box body and the moving member, and the second elastic member enables the detected portion to remain in the non-detection position or have a tendency to move to the non-detection position.

[0032] In some embodiments, the moving part is rod-shaped and is arranged on the box body along the first direction. The moving part can be driven by the power receiving part to generate a displacement relative to the box body in the first direction, thereby moving from the first position to the second position; the driven part is located at one end of the moving part, and the detected part is located at the other end of the moving part; the swing axis of the moving part is arranged along the second direction.

[0033] In some embodiments, the box body is provided with a slide groove, the slide groove includes a first slide groove, and the moving member is provided on the first slide groove;

[0034] The developing device further includes a shaft member, the shaft member is arranged on the slide groove along the second direction, and the moving member is hinged to the shaft member;

[0035] The sliding groove further includes a second sliding groove communicated with the first sliding groove, and the first elastic member is arranged on the second sliding groove along the first direction and abuts against the shaft component.

[0036] In some embodiments, the developing device further includes a first transmission member and a first protective cover, the first transmission member being provided with a first acting portion, the first protective cover being provided with a second acting portion, the first transmission member being configured to rotate using the driving force input by the image forming device, and to move along its axial direction through the action of the first acting portion and the second acting portion, applying a second acting force to the driven portion, so that the moving member moves from the first position to the second position.

[0037] In some embodiments, at least one of the first acting portion and the second acting portion is provided with an inclined surface inclined relative to a first direction.

[0038] In some embodiments, the moving member can swing around a swing axis intersecting the first direction; the moving member is configured to have an initial position and a triggerable position; the moving member has a driven portion;

[0039] When the moving member is at the initial position, the detected portion is at the first detection position and contacts the detecting member, and the contact time between the detected portion and the detecting member is the first time;

[0040] When the moving part is in the triggerable position, the driven part can receive the first force so that the detected part swings to the second detection position and contacts the detecting part, and the contact time between the detected part and the detecting part is the second time;

[0041] The first time and the second time are set to have different values;

[0042] When the detected part is located at the first detection position, it has a first distance relative to the swing center of the detection member. When the detected part is located at the second detection position, it has a second distance relative to the swing center of the detection member. The first distance is smaller than the second distance.

[0043] In some embodiments, the developing device further includes a first positioning portion and a second positioning portion, wherein the first positioning portion is directly or indirectly fixed on the box body, and the second positioning portion is disposed on the moving part and is used to act with the first positioning portion to keep the moving part in the initial position.

[0044] In some embodiments, the developing device also includes a first transmission member, which is provided with a third acting portion. The first transmission member is configured to rotate using the driving force input by the image forming device, and to apply a third acting force to the moving member through the third acting portion so that the moving member moves, and the second positioning portion is disengaged from the first positioning portion so that the moving member can swing.

[0045] In some embodiments, when the second positioning portion is disengaged from the first positioning portion, the moving member is elastically deformed under the action of a third force.

[0046] In some embodiments, the developing device further includes a second elastic member, the second elastic member being disposed between the box body and the moving member, the second elastic member being configured to cause the detected portion to have a tendency to move to the non-detection position or to remain in the non-detection position;

[0047] When the second positioning portion is disengaged from the first positioning portion, the moving member swings under the action of the second elastic member, so that the detected portion moves to the non-detection position.

[0048] In some embodiments, the developing device also includes a second transmission member, which is provided with a transmission part. The second transmission member is configured to rotate using the driving force input by the image forming device, and to apply a first force to the driven part through the transmission part, so that when the moving part swings around the swing axis and swings from the non-detection position to the detection position, it comes into contact with the detection part of the image forming device.

[0049] In some embodiments, the developing device further includes a third elastic member, and the second transmission member has a transmission position engaged with the first transmission member and a disengagement position disengaged from the first transmission member; when the second transmission member is located at the transmission position, it can receive the driving force input by the image forming device through the first transmission member to rotate, and apply a first force to the driven part through the transmission part; the third elastic member is used to make the second transmission member have a tendency to move to the transmission position or remain in the transmission position. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 Schematic diagram of the structure of the developing device and the detecting element according to the first embodiment of the present invention;

[0051] Figure 2 Schematic diagram of the structure of the first end of the developing device (excluding the first protective cover) according to the first embodiment of the present invention;

[0052] Figure 3 This is a schematic structural diagram of a first protective cover according to a first embodiment of the present invention;

[0053] Figure 4 This is a structural schematic diagram of a first transmission member, a second transmission member, a moving member, and related structures according to a first embodiment of the present invention;

[0054] Figure 5 Schematic diagram of the structure of the developing device according to the first embodiment of the present invention;

[0055] Figure 6 for Figure 5 A magnified view of point A;

[0056] Figure 7 for Figure 5 An enlarged view of point B;

[0057] Figure 8 Schematic diagram of the structure of the second end of the developing device according to the first embodiment of the present invention;

[0058] Figure 9 This is a schematic structural diagram of the second end of the developing device and the detecting element according to the second embodiment of the present invention;

[0059] Figure 10 Schematic diagram of the structure of the second end of the developing device according to the second embodiment of the present invention;

[0060] Figure 11 Schematic diagram of the structure of the second end of the developing device according to the second embodiment of the present invention;

[0061] Figure 12 An exploded view of another embodiment of the developing device of the first embodiment of the present invention;

[0062] Reference numerals:

[0063] Box body 1; first chute 11; second chute 12; first positioning portion 13; first protective cover 21; first support shaft 211; second action portion 212; second protective cover 22; first inclined portion 221 (Example 1); second inclined portion 222 (Example 1); developing roller 3; power receiving portion 41; developing gear 42; powder feeding gear 43; idler gear 44; stirring gear 45; first transmission member 46; first gear portion 461; missing tooth portion 4611; first action portion 462; third action portion 4 63; fourth acting portion 464; second transmission member 47; second gear portion 471; transmission portion 472; identification component 5; conductive component 6; moving member 71; driven portion 711; second positioning portion 7111; hinge hole 712; detected portion 72; first inclined portion 721 (Example 2); second inclined portion 722 (Example 2); shaft member 73; first elastic member 74; second elastic member 75; fifth elastic member 76; third elastic member 81; fourth elastic member 82; detecting member 9. DETAILED DESCRIPTION

[0064] The present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only some, not all, of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0065] It should be noted that the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0066] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "fixed," and the like should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0067] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0068] In the above description, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0069] Example 1

[0070] The present invention provides a developing device which is detachably mounted in an image forming device.

[0071] For ease of understanding, a three-dimensional rectangular coordinate system is established, comprising mutually perpendicular first, second, and third directions. The first direction is the length of the developing device. The second and third directions are respectively perpendicular to the first direction (in other embodiments, the second and third directions may not be perpendicular to the first direction, but may simply intersect). The second direction may be the width of the developing device, and the third direction may be the height of the developing device. In this embodiment, the first direction is represented by the X direction, the second direction is represented by the Y direction, and the third direction is represented by the Z direction. The developing device has a first end and a second end in the first direction. The first end of the developing device is used to receive driving force input from the image forming device, and the second end of the developing device is used to interact with the detection member 9 of the image forming device to enable the image forming device to identify the developing device. In this embodiment, the first end is located in the +X direction, and the second end is located in the -X direction. The developing device has a third end and a fourth end in the second direction. In this embodiment, the third end is located in the +Y direction, and the fourth end is located in the -Y direction. The developing device has a fifth end and a sixth end in the third direction. In this embodiment, the fifth end is located in the +Z direction, and the sixth end is located in the -Z direction. The box body 1 and the developing device have corresponding first, second, third, fourth, fifth and sixth ends.

[0072] See Figure 1-8 The developing device includes a housing 1, a protective cover, a developing roller 3, a powder feed roller, a stirring frame, a transmission assembly, an identification assembly 5, a conductive assembly 6, a detection assembly, a third elastic member 81, and a fourth elastic member 82. The developing roller 3, the powder feed roller, and the stirring frame are each rotatably mounted on the housing 1 along a first direction. The protective cover includes a first protective cover 21 mounted at a first end of the housing 1. The third elastic member 81 and the fourth elastic member 82 may be springs. The developing roller 3 is mounted at the third end of the housing 1 in the Y direction.

[0073] The transmission assembly is disposed at the first end of the developing device and includes a power receiving portion 41, a developing gear 42, a powder feeding gear 43, an idler gear 44, a stirring gear 45, a first transmission member 46, and a second transmission member 47, wherein the first transmission member 46 and the second transmission member 47 can be implemented as gears. The rotation axes of the power receiving portion 41, the developing gear 42, the powder feeding gear 43, the idler gear 44, the stirring gear 45, the first transmission member 46, and the second transmission member 47 are all arranged along a first direction. The power receiving portion 41 is used to receive driving force input from the image forming device. The developing gear 42, the powder feeding gear 43, the idler gear 44, the stirring gear 45, the first transmission member 46, and the second transmission member 47 are respectively driven directly or indirectly by the power receiving portion 41. The developing gear 42 is used to drive the developing roller 3, the powder feeding gear 43 is used to drive the powder feeding roller, the stirring gear 45 is used to drive the stirring frame, and the first transmission member 46 and the second transmission member 47 are used to drive the detection assembly.

[0074] The first transmission member 46 is rotatably mounted via the first support shaft 211 on the inner wall of the first protective cover 21. The first transmission member 46 includes a first gear portion 461 for transmission, a first actuating portion 462 protruding from one end of the first transmission member 46 in the +X direction, and a third actuating portion 463 protruding from one end of the first transmission member 46 in the -X direction. The first gear portion 461 includes a toothed portion and a toothless portion 4611. When the toothed portion engages with the stirring gear 45, the first transmission member 46 rotates. When the toothless portion 4611 of the first transmission member 46 rotates to the point where it faces the stirring gear 45, the first transmission member 46 disengages from the stirring gear 45, and the first transmission member 46 stops rotating. The inner wall of the first protective cover 21 is provided with a second actuating portion 212 having an inclined surface. When the first transmission member 46 rotates in response to the driving force of the power receiving portion 41, the first actuating portion 462 rotates to a position where it actuates the second actuating portion 212. The first actuating portion 462 contacts and moves along the inclined surface of the second actuating portion 212, causing the first transmission member 46 to move in the -X direction. This applies a second actuating force in the first direction to the driven portion 711 of the moving member 71 in the detection assembly, causing the moving member 71 to move from the first position to the second position in the -X direction. A fourth elastic member 82 is disposed between the first end of the housing 1 and the -X end of the first transmission member 46. This elastic member is configured to cause the first transmission member 46 to move in the +X direction, thereby abutting or maintaining abutment against the inner wall of the first protective cover 21. This also allows the first actuating portion 462 and the second actuating portion 212 to abut against each other. When the first transmission member 46 receives the driving force of the power receiving part 41 and rotates, the third action part 463 rotates to a position where it acts on the driven part 711 of the moving part 71 in the detection component, applying a third action force to the driven part 711, so that the driven part 711 moves along the +Y direction.

[0075] The second transmission member 47 is rotatably mounted on the first end of the housing 1 and includes a second gear portion 471 for transmission. The second gear portion 471 is capable of meshing with the first gear portion 461 of the first transmission member 46. The second transmission member 47 also includes a radially protruding transmission portion 472. When the second transmission member 47 rotates under the driving force of the first transmission member 46, the transmission portion 472 rotates to a position where it interacts with the driven portion 711 of the moving member 71 of the detection assembly. The transmission portion 472 applies a first force generally in the third direction to the driven portion 711, causing the driven portion 711 to move in the -Z direction, thereby causing the moving member 71 to swing about its swing axis. The detected portion swings from a non-detection position to a detection position as the moving member 71 swings, thereby enabling detection. The third elastic member 81 is disposed between the first end of the housing 1 and the second transmission member 47. The second transmission member 47 has a transmission position in which it engages with the first transmission member 46 and a disengagement position in which it disengages from the first transmission member 46. When the second transmission member 47 is in the transmission position, the first gear portion 461 meshes with the second gear portion 471, and the second transmission member 47 receives the driving force from the power receiving portion 41 through the first transmission member 46 to rotate. When the second transmission member 47 is in the disengaged position, the first gear portion 461 and the second gear portion 471 are disengaged, and the second transmission member 47 can be rotated to reset. The third elastic member 81 is used to provide a tendency for the second transmission member 47 to move to the transmission position or remain in the transmission position. When the second transmission member 47 needs to be reset, it can be easily rotated by simply pressing the second transmission member 47 in the -X direction to disengage it from the first transmission member 46.

[0076] The detection assembly includes a moving member 71, a detected portion 72, a shaft member 73, a first elastic member 74 and a second elastic member 75. The first elastic member 74 and the second elastic member 75 can be springs.

[0077] The moving member 71 is movably mounted on the box body 1. In this embodiment, the moving member 71 is oscillating. In other embodiments, the moving member 71 may be oscillating in other ways, such as translation. In this embodiment, the moving member 71 is oscillatingly mounted on the box body 1. In this embodiment, the moving member 71 is a rod-shaped structure, disposed at the fifth end of the box body 1, i.e., in the +Z direction of the box body 1. The box body 1 is provided with corresponding chutes, which include a first chute 11 and a second chute 12 that are interconnected. The first chute 11 is disposed along the first direction, and there are two second chutes 12, one on each side of the first chute 11 in the Y direction. The second chutes 12 are also disposed along the first direction. The moving member 71 is disposed within the first chute 11 along a first direction. The shaft member 73 is disposed at the junction of the first chute 11 and the second chute 12 along a second direction. The moving member 71 is hingedly connected to the shaft member 73. Specifically, the moving member 71 is provided with a hinge hole 712 extending along the first direction. The shaft member 73 is disposed through the hinge hole 712, so that the moving member 71 has a swing axis parallel to the axis of the shaft member 73. The swing axis is parallel to the second direction. In other embodiments, the moving member 71 may be disposed in other directions, and the swing axis may also be in other directions.

[0078] The moving member 71 is movably disposed within the first chute 11 and is capable of moving from a first position to a second position along a first direction, specifically, along the -X direction. The first elastic member 74 is disposed on the second chute 12 along the first direction and abuts against the shaft member 73. The first elastic member 74 applies a force in the +X direction to the shaft member 73, causing the shaft member 73 to apply a corresponding force in the +X direction to the moving member 71, thereby causing the moving member 71 to have a tendency to move in the +X direction to the first position or remain in the first position. In this embodiment, the shaft member 73 has two ends, and the first elastic member 74 has two ends. One end of the first elastic member 74 abuts against the inner sidewall of the second chute 12, and the other end abuts against the end of the shaft member 73.

[0079] The detected portion 72 is disposed at the second end of the housing and is in transmission connection with the moving member 71. Specifically, the detected portion 72 is fixedly connected to the end of the moving member 71 facing the -X direction and extends beyond the second end of the housing. The detected portion 72 is capable of displacement in the third direction as the moving member 71 swings. When the detected portion 72 displaces in the +Z direction and swings from a non-detecting position to a detecting position, it contacts the detecting member 9 on the image forming device, achieving detection. When the detected portion 72 displaces in the -Z direction and moves from the detecting position to the non-detecting position, the detected portion 72 moves away from the detecting member 9.

[0080] The detected portion 72 can move along the -X direction from a first position to a second position along the moving member 71. When the detected portion 72 is in the first position and swings from the non-detection position to the detection position, it triggers the detection member 9 to move at a first speed. When the detected portion 72 is in the second position and swings from the non-detection position to the detection position, it triggers the detection member 9 to move at a second speed, and the first speed and the second speed are different. In this embodiment, the detected portion 72 has a first inclined portion 721 and a second inclined portion 722, wherein the first inclined portion 721 is located in the -X direction relative to the second inclined portion 722, that is, farther away from the second end of the box body 1. When the detected portion 72 is in the first position and swings from the non-detection position to the detection position, the first inclined portion 721 triggers the detection member 9 to move at the first speed. When the detected portion 72 is in the second position and swings from the non-detection position to the detection position, the second inclined portion 722 triggers the detection member 9 to move at the second speed. The first inclined portion 721 and the second inclined portion 722 have different slopes, so that the first speed and the second speed are different.

[0081] Specifically, the first inclined portion 721 can be implemented as a first edge, and the second inclined portion 722 can be implemented as a second edge, specifically a straight edge. In other embodiments, the first inclined portion 721 and the second inclined portion 722 can also be other shapes, such as rounded corners or arc edges, or inclined surfaces, etc. In this embodiment, the first inclined portion 721 and the second inclined portion 722 are formed on the same inclined surface, and the inclined surface has a variable slope. In other embodiments, the inclined surface can also be a curved surface.

[0082] In this embodiment, the first inclined portion 721 has a first slope relative to the second direction, and the second inclined portion 722 has a second slope relative to the second direction, and the first slope is greater than the second slope, so that the first speed is less than the second speed. When the first inclined portion 721 and the second inclined portion 722 are straight edges, the first inclined portion 721 has a first angle A1 with the +Y direction, and the second inclined portion 722 has a second angle A2 with the +Y direction, and A1 is greater than A2, so that the first speed is less than the second speed. In other embodiments, the shape and slope of the first inclined portion 721 and the second inclined portion 722 can also be set in other ways, as long as the first speed and the second speed generated when they respectively contact the detection member 9 are different, so that the image forming device can identify different models of the developing device according to the different speeds at which the detection member 9 is touched.

[0083] In other embodiments, the moving part 71 and the detected part 72 can also be configured to move from the second position to the first position along the +X direction, and the detected part 72 first contacts the detecting part 9 through the second inclined part 722 at the second position, so that the detecting part 9 moves at the second speed, and then moves to the first position and contacts the detecting part 9 through the first inclined part 721, so that the detecting part 9 moves at the first speed.

[0084] The end of the moving member 71 facing the +X direction includes a driven portion 711. The driven portion 711 is disposed at the first end of the housing 1. Specifically, the driven portion 711 extends outside the first end of the housing 1 and interacts with the first transmission member 46 and the second transmission member 47. A second elastic member 75 is disposed between the housing 1 and the moving member 71. In this embodiment, the second elastic member 75 is disposed between the driven portion 711 and the bottom wall of the first chute 11. This elastic member 75 is configured to cause the driven portion 711 to displace in the +Z direction or remain in the +Z direction. This in turn causes the detected portion 72 at the other end of the moving member 71 to displace in the -Z direction or remain in the +Z direction, thereby causing the detected portion 72 to remain in or move to the non-detecting position.

[0085] The moving member 71 is also configured to have an initial position and a triggerable position. The initial position is the position of the moving member 71 when the developing device leaves the factory. The driven portion 711 also includes a second positioning portion 7111. Accordingly, the first end of the housing 1 is provided with a first positioning portion 13. The second positioning portion 7111 is configured to interact with the first positioning portion 13 to maintain the moving member 71 in the initial position. In the initial position, the second positioning portion 7111 engages with the first positioning portion 13, the driven portion 711 faces the -Z direction, the second elastic member 75 is compressed, and the detected portion 72 faces the +Z direction, positioned in the detection position, specifically the first detection position. When the developing device is installed in the image forming device, the detected portion 72 contacts the detection member 9, allowing the image forming device to detect the installation of the developing device. In the initial position, the transmission portion 472 of the second transmission member 47 cannot contact the driven portion 711.

[0086] When the first transmission member 46 receives the driving force and rotates so that the third acting portion 463 rotates to the position acting on the driven portion 711, the third acting portion 463 applies a third acting force along the second direction to the driven portion 711, so that the driven portion 711 moves in the +Y direction, thereby causing the second positioning portion 7111 to disengage from the first positioning portion 13, and the driven portion 711 moves in the +Z direction under the action of the second elastic member 75. As a result, the detected portion 72 moves in the -Z direction to the non-detection position. At the same time, due to the slight elasticity of the moving member 71 itself, the driven portion 711 is reset in the -Y direction, and the moving member 71 The detected portion 72 enters the triggerable position. At this time, when the second transmission member 47 is rotated by the driving force, causing the transmission member 472 to rotate to the position where the driven portion 711 acts, the transmission member 472 applies a first force to the driven portion 711, and the driven portion 711 moves in the -Z direction, causing the detected portion 72 to move in the +Z direction to the detection position, specifically the second detection position, and the detected portion 72 contacts the detection member 9 to achieve detection. The transmission member 472 continues to rotate with the second transmission member 47 and disengages from the driven portion 711. The driven portion 711 is reset in the +Z direction under the action of the second elastic member 75, causing the detected portion 72 to reset in the -Z direction to the non-detection position. The transmission member 472 can rotate multiple times, thereby contacting the driven portion 711 multiple times, causing the detected portion 72 to move multiple times between the first detection position and the non-detection position, thereby contacting the detection member 9 multiple times.

[0087] When the moving member 71 is in the initial position, the detected portion 72 is in the first detection position and in contact with the detecting member 9. The contact time between the detected portion 72 and the detecting member 9 is defined as a first time. This first time is measured from the moment the developing device is installed in the image forming apparatus and ends when the third acting portion 463 acts on the driven portion 711, causing the second positioning portion 7111 to disengage from the first positioning portion 13, the driven portion 711 to move in the +Z direction, and the detected portion 72 to move in the -Z direction, thereby disengaging from the detecting member 9. The length of the first time can be adjusted by adjusting components such as the position of the third acting portion 463 and the rotational speed of the first transmission member 46.

[0088] When the moving member 71 is in the triggerable position, the driven portion 711 can receive the first force, causing the detected portion 72 to swing to the second detection position and contact the detection member 9. The contact time between the detected portion 72 and the detection member 9 is defined as the second time, which is calculated from the moment the detected portion 72 contacts the detection member 9 and ends when the detected portion 72 disengages from the detection member 9. The length of the first time is set by setting the position and size of components such as the transmission portion 472 or the driven portion 711, and setting the time for which the first force is applied. The first time and the second time are set to different values, so that the image forming apparatus can identify different models of developing devices based on the length of the first time and the second time. In this embodiment, the first time is greater than the second time.

[0089] In this embodiment, when the detected portion 72 is in the first detection position, it has a first distance relative to the swing center of the detection member 9. When the detected portion 72 is in the second detection position, it has a second distance relative to the swing center of the detection member 9. The first distance and the second distance are different. This approach also facilitates setting the length of the first time and the second time. In this embodiment, the first distance and the second distance refer to the distance between the detected portion 72 and the detection member 9 in the Z direction, and the first distance is smaller than the second distance.

[0090] The identification component 5 includes a storage medium disposed at the first end of the box body 1 and an electrical contact surface disposed on the storage medium, the electrical contact surface being used to contact an identification contact in the image forming device so that the image forming device can read information stored in the storage medium.

[0091] The conductive component 6 includes a conductive member arranged at the second end of the box body 1, and the conductive member is provided with an electrical receiving surface for contacting the power supply terminal in the image forming device. The conductive member is electrically connected to the developing roller 3 to conduct the electric potential provided by the image forming device to the developing roller 3.

[0092] The working process of the developing device of this embodiment is as follows:

[0093] The developing device is installed in the image forming device in an initial state. In the initial state, the moving part 71 and the detected part 72 are located at the first detection position in the swing direction and at the first position in the length direction. The first inclined part 721 is in contact with the detection part 9. At this time, the transmission part 472 on the second transmission part 47 cannot touch the driven part 711. Since the second positioning part 7111 is engaged with the first positioning part 13, the detected part 72 is maintained in the first detection position for the first time.

[0094] The power receiving portion 41 rotates upon receiving the driving force of the image forming apparatus and transmits the power to the first transmission member 46 and the second transmission member 47 through other components of the transmission assembly. Because the toothed portion of the first transmission member 46 meshes with the stirring gear 45, as the first transmission member 46 rotates, the third acting portion 463 rotates to a position acting upon the driven portion 711, exerting a third acting force on the driven portion 711. This causes the driven portion 711 to undergo a slight displacement in the +Y direction. This can be caused, for example, by elastic deformation of the moving member, causing the second positioning portion 7111 to disengage from the first positioning portion 13. The driven portion 711, under the action of the second elastic member 75, moves in the +Z direction while simultaneously resetting in the -Y direction (perhaps due to the moving member's own elastic force). The detected portion 72 moves in the -Z direction to a non-detecting position, and the moving member 71 and the detected portion 72 enter a triggerable position.

[0095] The second transmission member 47 rotates under the drive of the first transmission member 46, and the transmission part 472 rotates to a position acting on the driven part 711, applying a first force to the driven part 711, and the driven part 711 moves in the -Z direction. The detected part 72 swings in the +Z direction to the second detection position, and the first inclined part 721 contacts the detection part 9, causing the detection part 9 to move at the first speed, and the contact time is the second time.

[0096] The transmission part 472 continues to rotate with the second transmission member 47 and disengages from the driven part 711. The driven part 711 no longer receives the first force and moves in the +Z direction under the action of the second elastic member 75. The detected part 72 moves in the -Z direction to the non-detection position.

[0097] The transmission part 472 can continue to rotate and touch the driven part 711 multiple times in the above manner. The first inclined part 721 returns to the non-detection position each time after triggering the detection member 9.

[0098] The first transmission member 46 continues to rotate, and the first acting portion 462 rotates accordingly to a position acting on the second acting portion 212, and is pushed by the second acting portion 212, so that the first transmission member 46 moves in the -X direction. The first transmission member 46 is located on one side of the -X direction and applies a second acting force to the driven portion 711, so that the moving member 71 moves from the first position to the second position along the -X direction, so that the second inclined portion 722 corresponds to the detection member 9.

[0099] The transmission part 472 continues to rotate and rotates to a position where it acts on the driven part 711, applying a first force to the driven part 711, the driven part 711 moves in the -Z direction, and the detected part 72 moves in the +Z direction to the detection position, and the second inclined part 722 contacts the detection part 9, causing the detection part 9 to move at a second speed.

[0100] The transmission part 472 continues to rotate and disengages from the driven part 711 . The driven part 711 no longer receives the first force and moves in the +Z direction under the action of the second elastic member 75 . The detected part 72 moves in the −Z direction to the non-detection position.

[0101] The transmission portion 472 can continue to rotate, repeatedly contacting the driven portion 711 in the manner described above, and the second inclined portion 722 returns to the non-detecting position each time the detection member 9 is triggered. During this process, the first acting portion 462 and the second acting portion 212 are in continuous contact, and the first transmission member 46 continuously applies the second acting force to the driven portion 711.

[0102] The first transmission member 46 rotates to the tooth-missing portion 4611 and disengages from the stirring gear 45 . The first transmission member 46 and the second transmission member 47 stop rotating, and the detection ends.

[0103] To reset, the first transmission member 46 can be moved to rotate and reset, disengaging the first acting portion 462 from the second acting portion 212. The first transmission member 46 no longer applies the second acting force to the driven portion 711, and the moving member 71 is reset from the second position to the first position along the +X direction under the action of the first elastic member 74. The second transmission member 47 is pressed in the -X direction to disengage it from the first transmission member 46, and then rotated to reset it. After resetting, the second transmission member 47 is released, allowing it to move in the +X direction under the action of the third elastic member 81 and re-engage with the first transmission member 46.

[0104] In this embodiment, the scheme in which the detected part 72 touches the detection member 9 for different lengths of time at the first time and the second time, and the scheme in which the detected part 72 touches the detection member 9 to make it move at different first speeds and second speeds can be adopted simultaneously, or only one of them can be adopted.

[0105] The present invention provides a new detection method that differs from the prior art. This detection method has a simple detection structure, is less prone to detection errors, and can ensure that the developing device is correctly detected by the image forming device. Secondly, the driven portion 711 and the detected portion 72 are respectively located at the first and second ends of the box body, which can simplify the structure of the second end of the developing device. In addition, by having the detected portion 72 contact the detection member 9 at different speeds and / or by having the detected portion 72 contact the detected member 9 for different lengths of time, different developing device model information can be transmitted to the image forming device, better adapting to the continuous expansion of the developing device product line and enabling the identification of numerous different developing device models.

[0106] See Figure 12In some embodiments, a fourth acting portion 464 may be further provided on the first transmission member 46. The fourth acting portion 464 is annular and extends radially along the first transmission member 46 in a direction away from the axis of the first transmission member 46. Therefore, when the first transmission member 46 moves along the -X direction, the fourth acting portion 464 contacts the second transmission member 47 (perhaps by contacting the end surface of the cylindrical portion of the second transmission member 47), thereby driving the second transmission member 47 to move along with the first transmission member 46 along the -X direction. In other words, the first transmission member 46, the second transmission member 47, and the moving member 71 move synchronously along the -X direction. This ensures that the contact position of the transmission portion 472 on the second transmission member 47 and the driven portion 711 remains unchanged. In other words, the distance between the contact position of the transmission portion 472 and the driven portion 711 and the swing axis of the moving member 71 remains unchanged, thereby ensuring that the detected portion 72 has only one speed.

[0107] Example 2

[0108] The second embodiment is substantially the same as the first embodiment, and the main differences are: the arrangement of the detected portion 72 is different, and the arrangement of the first inclined portion and the second inclined portion is different.

[0109] The first end of the developing device of this embodiment can be arranged in the same manner as in the first embodiment, and the difference lies mainly in the arrangement of the second end of the developing device.

[0110] See Figures 9 to 11 In this embodiment, the detected part 72 is rotatably arranged at one end of the moving part 71 facing the -X direction. The detection component also includes a fifth elastic part 76, which can be a spring. It is arranged between the detected part 72 and the end of the moving part 71 for rotational reset of the detected part 72.

[0111] The protective cover of this embodiment includes a second protective cover 22 disposed at the second end of the box body 1. The second protective cover 22 is provided with a first inclined portion 221 and a second inclined portion 222. The first inclined portion 221 is located in the +X direction relative to the second inclined portion 222, i.e., closer to the second end of the box body 1. Specifically, the first inclined portion 221 can be a first inclined surface, and the second inclined portion 222 can be a second inclined surface. The first and second inclined surfaces can be inclined planes, or in other embodiments, inclined curved surfaces, etc.

[0112] When the detected portion 72 is in the first position and swings from the non-detecting position to the detecting position, the detected portion 72 moves in the +Z direction and contacts the first inclined portion 221. Under the action of the first inclined portion 221, it rotates to contact the detecting member 9, causing the detecting member 9 to move at a first speed. When the detected portion 72 moves from the first position to the second position while the moving member 71 swings from the non-detecting position to the detecting position, the detected portion 72 moves in the +Z direction and contacts the second inclined portion 222. Under the action of the second inclined portion 222, it rotates to contact the detecting member 9, causing the detecting member 9 to move at a second speed. The first inclined portion 221 and the second inclined portion 222 have different slopes, so that the first speed is different from the second speed.

[0113] In this embodiment, the first inclined portion 221 and the second inclined portion 222 are generally arranged in the +Z direction of the detected portion 72. When the detected portion 72 moves in the +Z direction, they touch the first inclined portion 221 and the second inclined portion 222 respectively, thereby rotating. In other embodiments, the first inclined portion 221 and the second inclined portion 222 can also be arranged in the -Z direction of the detected portion 72. The detected portion 72 can be arranged to touch the first inclined portion 221 and the second inclined portion 222 respectively when moving in the -Z direction, thereby rotating. The driven portion 711 and related components are modified accordingly to achieve this.

[0114] In this embodiment, the first inclined portion 221 has a first slope relative to the second direction, and the second inclined portion 222 has a second slope relative to the second direction, and the first slope is greater than the second slope, so that the first speed is less than the second speed. When the first inclined portion 221 and the second inclined portion 222 are inclined planes, the first inclined portion 221 has a first angle B1 with the -Y direction, and the second inclined portion 222 has a second angle B2 with the -Y direction, and B1 is greater than B2, so that the first speed is less than the second speed. In other embodiments, the shape and slope of the first inclined portion 221 and the second inclined portion 222 can also be set in other ways, as long as when they respectively contact the detected portion 72, the first speed and the second speed generated when the detected portion 72 rotates and touches the detection member 9 are different, so that the image forming device can identify different models of the developing device according to the different speeds after the detection member 9 is touched.

[0115] The above are only some embodiments of the present invention. Those skilled in the art will appreciate that, without departing from the inventive concept of the present invention, they may make various modifications and improvements, or freely combine the above technical solutions, including freely combining the technical features of the different embodiments described above, all of which fall within the scope of protection of the present invention.

Claims

1. A developing device for detachably mounting in an image forming device, wherein the image forming device is provided with a detection member, wherein: include: The box body has a first end and a second end in the first direction, and has a third end and a fourth end in the second direction; a developing roller rotatably disposed on the cartridge body along a first direction, the developing roller being located at a third end of the cartridge body in a second direction, the second direction intersecting the first direction; a power receiving portion, which is used to receive power provided by the image forming device and is disposed at the first end of the box body; a moving part, which is provided on the box body and moves when driven by the power receiving part; a detected portion, which is disposed at the second end of the box body and is in transmission connection with the moving member and is driven by the moving member to move from a non-detection position that does not trigger the detecting member to a detection position that triggers the detecting member; as well as a first inclined portion and a second inclined portion, wherein the first inclined portion has a first slope relative to the second direction, and the second inclined portion has a second slope relative to the second direction; The detected portion can be driven by the moving member to move from a first position to a second position, and the detected portion is displaced relative to the box body in a first direction during the movement from the first position to the second position; When the detected portion is in the first position and moves from the non-detection position to the detection position, the detection member is triggered by the first inclined portion to move at a first speed; When the detected portion is in the second position and moves from the non-detection position to the detection position, the detection member is triggered by the second inclined portion to move at a second speed; The first speed is different from the second speed.

2. The developing device according to claim 1, wherein The first inclined portion and the second inclined portion are provided on the detected portion; When the detected portion is in the first position and moves from the non-detection position to the detection position, the first inclined portion contacts the detection member and drives the detection member to move at a first speed; When the detected portion is at the second position and moves from the non-detection position to the detection position, the second inclined portion contacts the detection member and drives the detection member to move at a second speed.

3. The developing device according to claim 2, wherein: The first slope is different from the second slope.

4. The developing device according to claim 2, wherein: The first inclined portion is a first side, and the second inclined portion is a second side.

5. The developing device according to claim 1, wherein The first inclined portion and the second inclined portion are not provided on the detected portion, and the detected portion is rotatably connected to the moving member; When the detected portion is in the first position and swings from the non-detection position to the detection position, the detected portion rotates under the action of the first inclined portion and triggers the detection member to move at a first speed; When the detected portion is in the second position and swings from the non-detection position to the detection position, the detected portion rotates under the action of the second inclined portion and triggers the detection member to move at a second speed.

6. The developing device according to claim 5, wherein: Also comprising a second protective cover, the first inclined portion is a first inclined surface provided on the second protective cover, and the second inclined portion is a second inclined surface provided on the second protective cover; The first slope is different from the second slope.

7. The developing device according to claim 1, wherein The first slope is greater than the second slope, so that the first speed is less than the second speed.

8. The developing device according to claim 1, wherein The moving member is movably provided on the box body so as to be able to move from a first position to a second position, and the detected portion can move from the first position to the second position along with the moving member.

9. The developing device according to claim 8, wherein: The moving part can swing around a swing axis intersecting with the first direction; the moving part has a driven part, and the driven part is located at the first end of the box body. The moving part receives a first force through the driven part and thus swings around the swing axis. The detected part is transmission-connected to the moving part, so that the detected part swings from the non-detection position to the detection position as the moving part swings.

10. The developing device according to claim 9, wherein It also includes a first elastic member, which is arranged between the box body and the moving member. The first elastic member applies a force toward the first end of the box body to the moving member, so that the moving member has a tendency to move toward the first end of the box body to the first position or remain in the first position.

11. The developing device according to claim 9, wherein The invention further comprises a second elastic member, which is arranged between the box body and the moving member, and the second elastic member enables the detected part to be maintained in the non-detection position or to have a tendency to move to the non-detection position.

12. The developing device according to claim 9, wherein The moving part is rod-shaped and is arranged on the box body along the first direction. The moving part can be driven by the power receiving part to generate displacement relative to the box body in the first direction, thereby moving from the first position to the second position; the driven part is located at one end of the moving part, and the detected part is located at the other end of the moving part; the swing axis of the moving part is arranged along the second direction.

13. The developing device according to claim 10, wherein: The box body is provided with a slide groove, the slide groove includes a first slide groove, and the moving part is arranged on the first slide groove; The developing device further includes a shaft member, the shaft member is arranged on the slide groove along the second direction, and the moving member is hinged to the shaft member; The sliding groove further includes a second sliding groove communicated with the first sliding groove, and the first elastic member is arranged on the second sliding groove along the first direction and abuts against the shaft component.

14. The developing device according to claim 9, wherein It also includes a first transmission member and a first protective cover, the first transmission member is provided with a first acting portion, the first protective cover is provided with a second acting portion, the first transmission member is configured to rotate using the driving force input by the image forming device, and through the action of the first acting portion and the second acting portion, move along its axial direction, apply a second acting force to the driven portion, so that the moving member moves from the first position to the second position.

15. The developing device according to claim 14, wherein: At least one of the first acting portion and the second acting portion is provided with an inclined surface inclined relative to a first direction.

16. The developing device according to claim 1, wherein The moving member can swing around a swing axis intersecting the first direction; the moving member is configured to have an initial position and a triggerable position; the moving member has a driven portion; When the moving member is at the initial position, the detected portion is at the first detection position and contacts the detecting member, and the contact time between the detected portion and the detecting member is the first time; When the moving part is in the triggerable position, the driven part can receive the first force so that the detected part swings to the second detection position and contacts the detecting part, and the contact time between the detected part and the detecting part is the second time; The first time and the second time are set to have different values; When the detected part is located at the first detection position, it has a first distance relative to the swing center of the detection member. When the detected part is located at the second detection position, it has a second distance relative to the swing center of the detection member. The first distance is smaller than the second distance.

17. The developing device according to claim 16, wherein: It also includes a first positioning portion and a second positioning portion, wherein the first positioning portion is directly or indirectly fixed on the box body, and the second positioning portion is arranged on the moving part and is used to act with the first positioning portion to keep the moving part in the initial position.

18. The developing device according to claim 17, wherein: It also includes a first transmission member, which is provided with a third acting part. The first transmission member is configured to rotate using the driving force input by the image forming device, and to apply a third acting force to the moving member through the third acting part, so that the moving member moves, and the second positioning part is disengaged from the first positioning part so that the moving member can swing.

19. The developing device according to claim 18, wherein When the second positioning portion is disengaged from the first positioning portion, the moving part generates elastic deformation under the action of the third force.

20. The developing device according to claim 18, wherein The apparatus further comprises a second elastic member, the second elastic member being disposed between the box body and the moving member, the second elastic member being configured to cause the detected portion to have a tendency to move to the non-detection position or to remain in the non-detection position; When the second positioning portion is disengaged from the first positioning portion, the moving member swings under the action of the second elastic member, so that the detected portion moves to the non-detection position.

21. The developing device according to claim 14 or 18, wherein: It also includes a second transmission member, which is provided with a transmission part. The second transmission member is configured to rotate using the driving force input by the image forming device, and to apply a first force to the driven part through the transmission part, so that when the moving part swings around the swing axis and swings from the non-detection position to the detection position, it comes into contact with the detection part of the image forming device.

22. The developing device according to claim 21, wherein It also includes a third elastic member, and the second transmission member has a transmission position engaged with the first transmission member and a disengagement position disengaged from the first transmission member; when the second transmission member is located at the transmission position, it can receive the driving force input by the image forming device through the first transmission member to rotate, and apply a first force to the driven part through the transmission part; the third elastic member is used to make the second transmission member have a tendency to move to the transmission position or remain in the transmission position.

Images