Developing device

Abstract

A developing device for being detachably mounted in an image forming apparatus includes: a cartridge having a first end and a second end in a first direction and having a third end and a fourth end in a second direction; the developing roller is rotatably arranged on the box body in the first direction, the developing roller is located at the third end of the box body in the second direction, and the second direction intersects with the first direction; the power receiving part is used for receiving power provided by an image forming device and is arranged at the first end of the box body; the moving part is arranged on the box body and is driven by the power receiving part to move; and the detected part is arranged at the second end of the box body, is in transmission connection with the moving part, and is driven by the moving part to move from a non-detection position where the detection part is not triggered to a detection position where the detection part is triggered. A new detection mode different from the prior art is provided, the detection structure is simple, and errors are not prone to occurring in detection.

Description

Technical Field

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

[0002] The developing device is a printing consumable commonly 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 model and specifications of the developing device to confirm whether it can be adapted. In the prior art, chips, detection gears and other methods are commonly used for detection. However, chips are expensive, and high costs will lead to an increase in the price of developing devices. The detection gear is a mechanical structure that can completely replace the chip, and also provide part of the information to partially replace the chip, thereby reducing the amount of information stored in the chip, thereby reducing the cost of the chip.

[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 being detachably mounted in an image forming device, 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 box body along a first direction, the developing roller being located at a third end of the box 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 arranged at the first end of the box body;

[0008] A moving part, which is arranged 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 drivingly 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, the detection structure is simple, detection errors are not prone to occur, and the developing device can be ensured to be 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 part can be driven by the moving part to move from the first position to the second position, and the detected part is displaced relative to the box body in the 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 disposed on the detected portion;

[0017] When the detected part is in the first position and moves from the non-detection position to the detection position, the first inclined part 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 disposed on the detected portion, and the detected portion is rotatably connected to the moving member;

[0023] When the detected part is in the first position and swings from the non-detection position to the detection position, the detected part rotates under the action of the first inclined part 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 disposed on the box body so as to be movable 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.

[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 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.

[0030] In some embodiments, the developing device also includes a first elastic member, which is arranged 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 to the first position toward the first end of the box body 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 a 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 be displaced 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 arranged on the first slide groove;

[0034] The developing device further comprises 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 slide groove further includes a second slide groove communicated with the first slide groove, and the first elastic member is arranged on the second slide groove along the first direction and abuts against the shaft component.

[0036] In some embodiments, the developing device 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.

[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 part is at the first detection position and contacts the detecting member, and the contact time between the detected part and the detecting member is the first time;

[0040] When the moving part is located at 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 detection part, and the contact time between the detected part and the detection 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 fixedly disposed on the box body, and the second positioning portion is disposed on the moving part for acting 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, the first transmission member 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 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.

[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 comprises a second elastic member, the second elastic member being disposed between the box body and the moving member, the second elastic member being used to make the detected portion have a tendency to move to the non-detection position or 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 a 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 also includes a third elastic member, and the second transmission member has a transmission position engaged with the first transmission member and a disengaged 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 It is a schematic structural diagram of a developing device and a detection element according to a first embodiment of the present invention;

[0051] Figure 2 It is a structural schematic diagram 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 It is a structural schematic diagram of a first transmission member, a second transmission member, a moving member and related structures of Embodiment 1 of the present invention;

[0054] Figure 5 It is a schematic structural diagram of a developing device according to a first embodiment of the present invention;

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

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

[0057] Figure 8 It is a structural schematic diagram of the second end of the developing device according to the first embodiment of the present invention;

[0058] Fig. 9 It is a structural schematic diagram of the second end of the developing device and the detection member according to the second embodiment of the present invention;

[0059] Fig.10 It is a structural schematic diagram of the second end of the developing device according to the second embodiment of the present invention;

[0060] Fig.11 It is a structural schematic diagram of the second end of the developing device according to the second embodiment of the present invention;

[0061] Fig.12 It is an exploded view of another implementation manner of the developing device of the first embodiment of the present invention;

[0062] Reference numerals:

[0063] Box body 1; first slide groove 11; second slide groove 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 (embodiment 1); second inclined portion 222 (embodiment 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 action 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; detection member 9. DETAILED DESCRIPTION

[0064] The present invention is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] It should be noted that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] In the above description, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0069] Embodiment 1

[0070] The invention provides a developing device which can be detachably installed in an image forming device.

[0071] For ease of understanding, a three-dimensional rectangular coordinate system is established, including a first direction, a second direction and a third direction that are perpendicular to each other, wherein the first direction is the length direction of the developing device. The second direction and the third direction are respectively perpendicular to the first direction (in other embodiments, the second direction and the third direction may not be perpendicular to the first direction, but only intersect), the second direction may be the width direction of the developing device, and the third direction may be the height direction of the developing device. In this embodiment, the first direction is represented as the X direction, the second direction is represented as the Y direction, and the third direction is represented as 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 the driving force input by the image forming device, and the second end of the developing device is used to act with the detection member 9 of the image forming device so that the image forming device identifies 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 also Figure 1 -8, the developing device includes a box body 1, a protective cover, a developing roller 3, a powder feeding roller, a stirring frame, a transmission component, an identification component 5, a conductive component 6, a detection component, a third elastic member 81 and a fourth elastic member 82. The developing roller 3, the powder feeding roller and the stirring frame are rotatably arranged on the box body 1 along the first direction. The protective cover includes a first protective cover 21 arranged at the first end of the box body 1. The third elastic member 81 and the fourth elastic member 82 can be springs. The developing roller 3 is arranged at the third end of the box body 1 in the Y direction.

[0073] The transmission assembly is arranged at the first end of the developing device, and includes a power receiving part 41, a developing gear 42, a powder feeding gear 43, an idler wheel 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 rotating shafts of the power receiving part 41, the developing gear 42, the powder feeding gear 43, the idler wheel 44, the stirring gear 45, the first transmission member 46 and the second transmission member 47 are all arranged along the first direction. The power receiving part 41 is used to receive the driving force input by the image forming device, the developing gear 42, the powder feeding gear 43, the idler wheel 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 part 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 component.

[0074] The first transmission member 46 is rotatably mounted through the first support shaft 211 on the inner wall of the first protective cover 21. The first transmission member 46 has a first gear portion 461 for transmission, a first action portion 462 protruding from one end of the first transmission member 46 in the +X direction, and a third action portion 463 protruding from one end of the first transmission member 46 in the -X direction. The first gear portion 461 has a toothed portion and a toothless portion 4611. When the toothed portion is engaged with the stirring gear 45, the first transmission member 46 rotates. When the first transmission member 46 rotates until the toothless portion 4611 is opposite to the stirring gear 45, it is disengaged 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 acting portion 212, and the second acting portion 212 has an inclined surface. When the first transmission member 46 receives the driving force of the power receiving portion 41 and rotates, the first acting portion 462 rotates to a position acting with the second acting portion 212, and the first acting portion 462 contacts the inclined surface of the second acting portion 212 and moves along the inclined surface, so that the first transmission member 46 moves along the -X direction, and applies a second acting force along the first direction to the driven portion 711 of the moving member 71 in the detection assembly, so that the moving member 71 moves from the first position to the second position along the -X direction. The fourth elastic member 82 is arranged between the first end of the box body 1 and one end of the first transmission member 46 in the -X direction, and is used to make the first transmission member 46 have a tendency to move along the +X direction so as to abut or maintain abutment with the inner wall of the first protective cover 21, and also make the first acting portion 462 and the second acting portion 212 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 accordingly to a position acting on the driven part 711 of the moving part 71 in the detection component, and applies 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 box body 1, and has a second gear portion 471 for transmission, and the second gear portion 471 can mesh with the first gear portion 461 of the first transmission member 46. The second transmission member 47 also has a transmission portion 472 protruding in the radial direction. When the second transmission member 47 receives the driving force of the first transmission member 46 to rotate, the transmission portion 472 rotates to a position acting on the driven portion 711 of the moving member 71 of the detection assembly and applies a first force substantially in the third direction to the driven portion 711, so that the driven portion 711 moves along the -Z direction, so that the moving member 71 swings around its swing axis, and the detected portion swings from the non-detection position to the detection position with the swing of the moving member 71, so as to realize detection. The third elastic member 81 is arranged between the first end of the box body 1 and the second transmission member 47, and the second transmission member 47 has a transmission position engaged with the first transmission member 46 and a disengagement position disengaged from the first transmission member 46. When the second transmission member 47 is in the transmission position, the first gear part 461 meshes with the second gear part 471, and the second transmission member 47 receives the driving force of the power receiving part 41 through the first transmission member 46 to rotate. When the second transmission member 47 is in the disengagement position, the first gear part 461 is disengaged from the second gear part 471, and the second transmission member 47 can be rotated to reset. The third elastic member 81 is used to make the second transmission member 47 have a tendency to move to the transmission position or remain in the transmission position. When the second transmission member 47 needs to be reset, it only needs to be pressed along the -X direction to disengage it from the first transmission member 46, and the second transmission member 47 can be easily rotated.

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

[0077] The moving member 71 is movably arranged on the box body 1. In this embodiment, the moving member 71 moves in a swinging manner. In other embodiments, the moving member 71 may also move in other ways, such as translation. In this embodiment, the moving member 71 is swingably arranged on the box body 1. In this embodiment, the moving member 71 is a rod-shaped structure, which is arranged at the fifth end of the box body 1, that is, the +Z direction of the box body 1. The box body 1 is correspondingly provided with a slide groove, which includes a first slide groove 11 and a second slide groove 12 that are interconnected. The first slide groove 11 is arranged along the first direction, and there are two second slide grooves 12, which are respectively arranged on both sides of the Y direction of the first slide groove 11, and the second slide groove 12 is also arranged along the first direction. The moving member 71 is arranged in the first slide groove 11 along the first direction, and the shaft member 73 is arranged at the connection between the first slide groove 11 and the second slide groove 12 along the second direction. The moving member 71 is hinged with the shaft member 73. Specifically, the moving member 71 is provided with a hinge hole 712 extending along the first direction, and the shaft member 73 is arranged through the hinge hole 712, so that the moving member 71 has a swing axis of the axis where the shaft member 73 is located, and the swing axis is parallel to the second direction. In other embodiments, the moving member 71 can also be arranged in other directions, and the swing axis can also be in other directions.

[0078] The moving member 71 is movably arranged in the first slide groove 11, and can be moved from the first position to the second position along the first direction, specifically along the -X direction. The first elastic member 74 is arranged on the second slide groove 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, so that the shaft member 73 applies a force in the +X direction to the moving member 71 accordingly, so that the moving member 71 has a tendency to move to the first position in the +X direction 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 side wall of the second slide groove 12, and the other end abuts against the end of the shaft member 73.

[0079] The detected portion 72 is arranged at the second end of the box body and is in driving connection with the moving member 71. Specifically, the detected portion 72 is fixedly connected to one end of the moving member 71 facing the -X direction and extends out of the second end of the box body. The detected portion 72 can be displaced in the third direction with the swing of the moving member 71. When the detected portion 72 is displaced in the +Z direction and swings from the non-detection position to the detection position, it contacts the detection member 9 on the image forming device to achieve detection. When the detected portion 72 is displaced in the -Z direction and moves from the detection position to the non-detection position, the detected portion 72 leaves the detection member 9.

[0080] The detected part 72 can move from the first position to the second position along the -X direction with the moving part 71. When the detected part 72 is in the first position and swings from the non-detection position to the detection position, it triggers the detection part 9 to move at a first speed, and when the detected part 72 is in the second position and swings from the non-detection position to the detection position, it triggers the detection part 9 to move at a second speed, and the first speed is different from the second speed. In this embodiment, the detected part 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 part 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 part 9 to move at a first speed, and when the detected part 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 part 9 to move at a second speed, and the first inclined portion 721 and the second inclined portion 722 have different slopes, so that the first speed is different from the second speed.

[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, which can be 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 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 has a driven portion 711, which is arranged at the first end of the box body 1. Specifically, the driven portion 711 extends out of the first end of the box body 1 and acts on the first transmission member 46 and the second transmission member 47. The second elastic member 75 is arranged between the box body 1 and the moving member 71. In this embodiment, the second elastic member 75 is arranged between the driven portion 711 and the bottom wall of the first slide groove 11, and is used to make the driven portion 711 have a tendency to be displaced in the +Z direction or to remain in the +Z direction, that is, to make the detected portion 72 at the other end of the moving member 71 have a tendency to be displaced in the -Z direction or to remain in the +Z direction, so that the detected portion 72 has a tendency to remain in the non-detection position or move to the non-detection position.

[0085] The moving part 71 is also configured to have an initial position and a triggerable position, wherein the initial position is the position of the moving part 71 when the developing device leaves the factory. There is also a second positioning portion 7111 on the driven part 711, and accordingly, a first positioning portion 13 is provided at the first end of the box body 1, and the second positioning portion 7111 is used to act with the first positioning portion 13 to keep the moving part 71 in the initial position. In the initial position, the second positioning portion 7111 is engaged with the first positioning portion 13, the driven part 711 faces the -Z direction, the second elastic member 75 is compressed, and the detected part 72 faces the +Z direction and is located in the detection position, specifically, in the first detection position. When the developing device is installed in the image forming device, the detected part 72 contacts the detection member 9, so that the image forming device detects the installation of the developing device. In the initial position, the transmission part 472 of the second transmission member 47 cannot contact the driven part 711.

[0086] When the first transmission member 46 receives the driving force and rotates so that the third action portion 463 rotates to the position acting on the driven portion 711, the third action portion 463 applies a third action force along the second direction to the driven portion 711, so that the driven portion 711 moves in the +Y direction, so that the second positioning portion 7111 is separated 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, thereby the detected portion 72 moves in the -Z direction to the non-detection position. At the same time, due to the movement of the moving member 711 The driven part 711 is reset along the -Y direction due to the slight elasticity of the second transmission member 47, and the moving member 71 and the detected part 72 enter the triggerable position. At this time, when the second transmission member 47 is rotated by the driving force so that the transmission member 472 rotates to the position where the driven part 711 acts, the transmission member 472 applies a first force to the driven part 711, and the driven part 711 moves in the -Z direction, so that the detected part 72 moves in the +Z direction to the detection position, specifically the second detection position, and the detected part 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 part 711. The driven part 711 is reset in the +Z direction under the action of the second elastic member 75, so that the detected part 72 is reset in the -Z direction to the non-detection position. The transmission member 472 can rotate multiple times, thereby touching the driven part 711 multiple times, so that the detected part 72 moves 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 located at the initial position, the detected portion 72 is located at the first detection position and contacts the detecting member 9. The contact time between the detected portion 72 and the detecting member 9 is defined as the first time, which starts from the moment when the developing device is installed in the image forming device and ends when the third acting portion 463 acts on the driven portion 711 to separate the second positioning portion 7111 from the first positioning portion 13, the driven portion 711 moves in the +Z direction, and the detected portion 72 moves in the -Z direction to separate from the detecting member 9. The length of the first time can be set by setting the position of the third acting portion 463 and the rotation speed of the first transmission member 46 and other components.

[0088] When the moving part 71 is in the triggerable position, the driven part 711 can receive the first force so that the detected part 72 swings to the second detection position and contacts the detection part 9. The contact time between the detected part 72 and the detection part 9 is defined as the second time, which starts from the moment when the detected part 72 contacts the detection part 9 and ends when the detected part 72 separates from the detection part 9. The length of the first time is set by setting the position and size of the transmission part 472 or the driven part 711 and the time when the first force is applied. The first time and the second time are set to have different values, so that the image forming device can identify different models of developing devices according to 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 located at the first detection position, it has a first distance relative to the swing center of the detection member 9, and when the detected portion 72 is located at the second detection position, it has a second distance relative to the swing center of the detection member 9. The first distance is different from the second distance. This method can also facilitate 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 with an identification contact in the image forming device so that the image forming device can read the 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, on which is provided 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 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 portion 721 is in contact with the detecting part 9. At this time, the transmission part 472 on the second transmission member 47 cannot touch the driven part 711. Since the second positioning portion 7111 is engaged with the first positioning portion 13, the detected part 72 is maintained in the first detection position for the first time.

[0094] The power receiving part 41 receives the driving force of the image forming device to rotate, and transmits the power to the first transmission member 46 and the second transmission member 47 through other parts of the transmission assembly. Since the toothed part of the first transmission member 46 is meshed with the stirring gear 45, as the first transmission member 46 rotates, the third action part 463 rotates to the position acting on the driven part 711, and applies the third action force to the driven part 711, so that the driven part 711 produces a slight displacement in the +Y direction, for example, the moving part undergoes elastic deformation, so that the second positioning part 7111 is separated from the first positioning part 13, and the driven part 711 moves in the +Z direction under the action of the second elastic member 75, and resets in the -Y direction at the same time (the moving part may be reset due to its own elastic force), and the detected part 72 moves in the -Z direction to the non-detection position, and the moving part 71 and the detected part 72 enter the 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, and the detected part 72 swings in the +Z direction to the second detection position, and the first inclined part 721 contacts the detection member 9, so that the detection member 9 moves 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, and 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 to a position where it acts on the driven part 711, applies a first force to the driven part 711, and the driven part 711 moves in the -Z direction. 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 part 472 can continue to rotate and touch the driven part 711 multiple times in the above manner, and the second inclined part 722 returns to the non-detection position each time after triggering the detection member 9. During this process, the first action part 462 and the second action part 212 are continuously in contact, and the first transmission member 46 continuously applies the second action force to the driven part 711.

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

[0103] When resetting, the first transmission member 46 can be moved to rotate and reset, the first action part 462 is disengaged from the second action part 212, the first transmission member 46 no longer applies the second action force to the driven part 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 along the -X direction to disengage it from the first transmission member 46, and then the second transmission member 47 is rotated to reset it. After resetting, the second transmission member 47 is released to move along 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 different from the prior art, which has a simple detection structure, is not prone to 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 end and the second end of the box body, which can simplify the structure of the second end of the developing device. In addition, by the detected portion 72 touching the detection member 9 at different speeds, and / or the detected portion 72 touching the detected member 9 for different lengths of time, the model information of different developing devices can be transmitted to the image forming device, which can better adapt to the continuous expansion of the developing device product line and realize the identification of many different developing device models.

[0106] See also Fig.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 in a radial direction of the first transmission member 46 in a direction away from the axis of the first transmission member 46, so that when the first transmission member 46 moves along the -X direction, the fourth acting portion 464 contacts the second transmission member 47 (may contact the end surface of the cylindrical portion of the second transmission member 47), thereby driving the second transmission member 47 to move along the -X direction with the first transmission member 46, that is, the first transmission member 46, the second transmission member 47 and the moving member 71 move synchronously along the -X direction, so that the contact position of the transmission portion 472 on the second transmission member 47 and the driven portion 711 remains unchanged, that is, 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, so that the detected portion 72 has only one speed.

[0107] Embodiment 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 mainly lies in the arrangement of the second end of the developing device.

[0110] See also 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 assembly also includes a fifth elastic member 76, which can be a spring, which is arranged between the detected part 72 and the end of the moving part 71 for rotational resetting 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, and the first inclined portion 221 is located in the +X direction relative to the second inclined portion 222, that is, closer to the second end of the box body 1. Specifically, the first inclined portion 221 may be a first inclined surface, the second inclined portion 222 may be a second inclined surface, the first inclined surface and the second inclined surface may be inclined planes, and in other embodiments, may also be inclined arc surfaces, etc.

[0112] When the detected part 72 is in the first position and swings from the non-detection position to the detection position, the detected part 72 moves in the +Z direction and contacts the first inclined part 221, and rotates under the action of the first inclined part 221 to contact the detection member 9, so that the detection member 9 moves at the first speed. When the detected part 72 moves from the first position to the second position while the moving member 71 swings from the non-detection position to the detection position, the detected part 72 moves in the +Z direction and contacts the second inclined part 222, and rotates under the action of the second inclined part 222 to contact the detection member 9, so that the detection member 9 moves at the second speed. The first inclined part 221 and the second inclined part 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. In the case where 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 contact the detected portion 72 respectively, 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. For those skilled in the art, without departing from the creative concept of the present invention, several modifications and improvements can be made, or the above technical solutions can be freely combined, including the technical features between the above different embodiments, which all belong to the protection scope of the present invention.

Claims

1. A developing device, for being detachably mounted in an image forming device, characterized in that: 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 box body along a first direction, the developing roller being located at a third end of the box 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 arranged at the first end of the box body; A moving part, which is arranged on the box body and moves when driven by the power receiving part; The detected part is arranged at the second end of the box body, is drivingly 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.

2. The developing device according to claim 1, characterized in that: Also 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; The detected part can be driven by the moving part to move from the first position to the second position, and the detected part is displaced relative to the box body in the 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.

3. The developing device according to claim 2, characterized in that: The first inclined portion and the second inclined portion are arranged on the detected portion; When the detected part is in the first position and moves from the non-detection position to the detection position, the first inclined part 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.

4. The developing device according to claim 3, characterized in that: The first slope is different from the second slope.

5. The developing device according to claim 3, characterized in that: The first inclined portion is a first side, and the second inclined portion is a second side.

6. The developing device according to claim 2, characterized in that: The first inclined portion and the second inclined portion are not disposed on the detected portion, and the detected portion is rotatably connected to the moving member; When the detected part is in the first position and swings from the non-detection position to the detection position, the detected part rotates under the action of the first inclined part 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.

7. The developing device according to claim 6, characterized in that: Also 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; The first slope is different from the second slope.

8. The developing device according to claim 2, characterized in that: The first slope is greater than the second slope, so that the first speed is less than the second speed.

9. The developing device according to claim 2, characterized in that: The moving member is movably arranged 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.

10. The developing device according to claim 9, characterized in that: 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 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.

11. The developing device according to claim 10, characterized in that: 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 to the first position toward the first end of the box body or remain in the first position.

12. The developing device according to claim 10, characterized in that: It also includes a second elastic member, which is arranged between the box body and the moving member, and the second elastic member allows the detected part to remain in the non-detection position or have a tendency to move to the non-detection position.

13. The developing device according to claim 9, characterized in that: 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 displace 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.

14. The developing device according to claim 11, characterized in that: 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 comprises 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 slide groove further includes a second slide groove communicated with the first slide groove, and the first elastic member is arranged on the second slide groove along the first direction and abuts against the shaft component.

15. The developing device according to claim 10, characterized in that: It also includes a first transmission member and a first protective cover, the first transmission member is provided with a first acting part, the first protective cover is provided with a second acting part, 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 part and the second acting part, move along its axial direction, apply a second acting force to the driven part, so that the moving member moves from the first position to the second position.

16. The developing device according to claim 15, characterized in that: 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.

17. The developing device according to claim 1, characterized in that: 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 part is at the first detection position and contacts the detecting member, and the contact time between the detected part and the detecting member is the first time; When the moving part is located at 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 detection part, and the contact time between the detected part and the detection 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.

18. The developing device according to claim 17, characterized in that: It also includes a first positioning portion and a second positioning portion, wherein the first positioning portion is directly or indirectly fixedly disposed 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 at the initial position.

19. The developing device according to claim 18, characterized in that: 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.

20. The developing device according to claim 19, characterized in that: When the second positioning portion is disengaged from the first positioning portion, the moving member generates elastic deformation under the action of the third force.

21. The developing device according to claim 19, characterized in that: It also includes a second elastic member, which is disposed between the box body and the moving member, and is used to make the detected part have a tendency to move to the non-detection position or 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.

22. The developing device according to claim 10 or 19, characterized in that: 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.

23. The developing device according to claim 22, characterized in that: 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