Developing cartridge

Abstract

The present invention relates to a developing cartridge detachably mounted in an image forming apparatus, the developing cartridge comprising: a developing housing for accommodating carbon powder; a developing roller rotatably disposed in the developing housing; the counting assembly is arranged at one end of the developing shell and is used for interacting with the detection component; the power source is used for outputting power to the counting assembly; the triggering piece is provided with an acting position and a non-acting position; at the acting position, the movement of the triggering piece is limited, the power output by the power source is limited by the triggering piece, and the counting assembly does not interact with the detection component; at the non-acting position, the trigger piece can move relative to the developing shell, the trigger piece does not limit the power output by the power source, the trigger piece moves from the acting position to the non-acting position under the action of the power output by the power source, and the counting assembly interacts with the detection part; according to the design, the structure of the developing box can be simplified, the production cost can be reduced, the fluidity of the carbon powder cannot be influenced, and meanwhile, the selectable range of the material of the triggering piece is larger.

Description

Technical Field

[0001] The invention relates to the field of electronic photographic imaging, and in particular to a developing box detachably installed in an electronic photographic imaging device. Background Art

[0002] The developing box is an essential component in the imaging device, and the developing box includes a developing shell and a developing roller rotatably arranged in the developing shell, and the developing roller is used to carry the carbon powder contained in the developing shell to supply the carbon powder to the photosensitive drum arranged outside the developing box to develop the electrostatic latent image formed on the surface of the photosensitive drum, and the rotation axis of the developing roller extends in a first direction; the developing box also includes a driving force receiving member arranged at one end of the developing shell, and the driving force receiving member is used to receive the driving force output by the imaging device.

[0003] The existing developing box is provided with a counting component, and the imaging device is provided with a detection component for cooperating with the counting component. The imaging device identifies relevant information of the developing box through parameters such as the contact time, number of contacts and contact interval between the counting component and the detection component.

[0004] In the prior art, the power source of the counting component comes from the driving force receiving member. However, the counting component and the driving force receiving member are usually arranged relatively at the two ends of the developing shell. A trigger member for transmitting the driving force and forcing the counting component to move is provided in the developing box. Along the first direction, the trigger member extends from one end of the developing box to the other end. A plurality of transmission components for transmitting the driving force need to be arranged between the two, which makes the structure of the developing box too complicated. Summary of the invention

[0005] The present invention provides a developing box adopting the following technical solution to solve the above problems:

[0006] A developing box is detachably installed in an imaging device provided with a detection component, and the developing box includes: a developing shell, forming a toner chamber for accommodating toner; a developing roller, rotatably arranged in the developing shell, for carrying toner, and the rotation axis of the developing roller extends in a first direction; a counting assembly, arranged at one end of the developing shell, for interacting with the detection component; a power source, for outputting power to the counting assembly; a trigger member, having an action position and an inaction position; in the action position, the movement of the trigger member is restricted, the power output by the power source is restricted by the trigger member, and the counting assembly does not interact with the detection component; in the inaction position, the trigger member is movable relative to the developing shell, the trigger member does not restrict the power output by the power source, and under the action of the power output by the power source, the trigger member moves from the action position to the inaction position, and the counting assembly interacts with the detection component.

[0007] Furthermore, the developing box is provided with a limiting member for limiting the movement of the trigger member, and the limiting member is movable relative to the developing shell; the limiting member is provided with at least one limiting portion for limiting the movement of the trigger member and at least one non-limiting portion that does not limit the movement of the trigger member; in the active position, the trigger member is limited by the limiting member and cannot move; in the inactive position, the trigger member is not limited by the limiting member and can move relative to the developing shell.

[0008] Further, the limiting member is an intermediate extending member extending between two end portions of the developing box in the first direction.

[0009] Furthermore, the limiting member is an end extension member arranged at the end of the developing box in the first direction.

[0010] Furthermore, the developing box comprises a first side wall and a second side wall which are arranged relatively and spaced apart along a first direction, and at least a portion of the second side wall overlaps with the trigger member along a direction perpendicular to the first direction.

[0011] Furthermore, the second side wall is provided with an accommodation space for accommodating a trigger member, and the trigger member is movably arranged in the accommodation space.

[0012] Furthermore, the carbon powder chamber is located between the first side wall and the second side wall; and the accommodating space is communicated with the carbon powder chamber.

[0013] Furthermore, the developing box is provided with a limiting member for limiting the movement of the triggering member, and the limiting member is movable relative to the developing housing; the triggering member and the limiting member interact with each other through magnetic force, and / or the triggering member and the counting component interact with each other through magnetic force.

[0014] Further, the trigger member is configured to slide between an action position and an inaction position.

[0015] Furthermore, the trigger member moves along a direction parallel to the first direction.

[0016] Furthermore, the power source is a passive power output device that can store power and output power, or an active power output device that can convert external energy into required power.

[0017] By adopting the above technical scheme, the beneficial effects that can be obtained by the present invention are: the power source and the counting component are simultaneously arranged at the non-driving end of the developing box, which is conducive to simplifying the structure of the developing box; when the power source is set as a passive power output component, a speed control mechanism for controlling the movement speed of the counting component is also provided in the developing box, so that the counting component maintains a constant movement speed, thereby making the combination process of the toggle member and the detection component of the imaging device more stable; the trigger member and the counting component are arranged on the same side of the developing box, so that the trigger member does not need to extend from one end of the developing box to the other end along the first direction, thereby not affecting the fluidity of the carbon powder, and can also reduce the production cost. At the same time, the material range of the trigger member is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A and Figure 1B It is a three-dimensional view of the developing box involved in the present invention.

[0019] Figure 2 It is a cross-sectional view of the developing box involved in the present invention, cut along the AA direction in Figure 1.

[0020] Figure 3 The present invention relates to an exploded view of some components of the developing box.

[0021] Figure 4A It is a three-dimensional diagram of a movable part according to the present invention.

[0022] Figure 4B It is a three-dimensional diagram of the trigger member involved in the present invention.

[0023] Figure 4C It is a schematic diagram of the movable part according to the present invention observed along the extending direction of the rotation axis of the movable part.

[0024] Figure 5 It is a three-dimensional view of the second end cover according to the present invention.

[0025] Figure 6 The present invention relates to a developing box, Figure 2 Partial cross-sectional view after cutting along the BB direction. DETAILED DESCRIPTION

[0026] The following is a detailed description of the structure and other aspects of the developing box according to the present invention through specific implementations and with reference to the accompanying drawings.

[0027] [Overall structure of the developer box]

[0028] like Figure 1A , Figure 1B and Figure 2As shown, the developing box 100 includes a developing shell 1 and a rotating part rotatable relative to the developing shell 1, and the developing shell 1 is used to accommodate carbon powder; the developing shell 1 includes a first shell 1a and a second shell 1b that are combined with each other, and a carbon powder chamber 10 for accommodating carbon powder is formed therebetween. The developing box 100 is also provided with a handle 7 for the operator to take the processing box.

[0029] In general, such as Figure 1A , Figure 1B and Figure 2 As shown, the developer box 100 includes a developer roller 21, a powder feeding roller 22 and a stirring member 23 rotatably arranged in the developer housing 1, the developer roller 21 is used to carry carbon powder and supply carbon powder to a photosensitive drum arranged outside the developer box 100 to develop the electrostatic latent image formed on the surface of the photosensitive drum, the rotation axis L of the developer roller 21 extends in a first direction, the powder feeding roller 22 contacts the developer roller 21 and is used to supply carbon powder to the developer roller 21, and the stirring member 23 is used to stir the carbon powder in the developer housing 1 to prevent it from agglomerating; therefore, the developer roller 21, the powder feeding roller 22 and the stirring member 23 can be respectively regarded as a kind of rotating member, and further, any one of the developer roller 21, the powder feeding roller 22 and the stirring member 23 can also be called an intermediate extension member, from which it can be known that the intermediate extension member is a kind of rotating member; the intermediate extension member can also be other rotatable components rotatably arranged inside or outside the developer housing 1, as long as it can extend between the two ends of the first direction of the developer box 100.

[0030] To make the following description clearer, the extension direction of the rotation axis L of the developing roller 21 is defined as the first direction / left-right direction, the second direction / front-back direction intersects with the first direction / left-right direction, the developing box 100 is installed forward roughly along the second direction and taken out backward, the developing roller 21 is exposed forward, and the third direction / up and down direction intersects with the first direction / left-right direction and the second direction / front-back direction at the same time. Preferably, the first direction / left-right direction, the second direction / front-back direction, and the third direction / up and down directions are orthogonal.

[0031] like Figure 1A , Figure 1B and Figure 2 As shown, the developing roller 21 and the handle 7 are arranged along the second direction, and the first shell 1a and the second shell 1b can be arranged along the third direction or along the second direction. The following description takes the arrangement of the first shell 1a and the second shell 1b along the third direction as an example. Along the third direction, the first shell 1a is located above the second shell 1b.

[0032] like Figure 1AAs shown, the developing box 100 also includes a driving force receiving member 3 for receiving the driving force output by the imaging device, and the driving force receiving member 3 is used to directly or indirectly drive the rotating member to rotate. Along the first direction, the end of the developing box 100 for receiving the driving force is defined as the driving end / left side, and the end opposite to the driving end is defined as the non-driving end / right side; along the first direction, the developing box 100 also includes a first end cover 11 arranged at the driving end and a second end cover 12 arranged at the non-driving end, and the driving force receiving member 3 is exposed from the first end cover 11.

[0033] After the driving force receiving member 3 receives the driving force output by the imaging device, the driving force receiving member 3 rotates around a direction parallel to the first direction. Therefore, the driving force receiving member 3 can also be regarded as a kind of rotating member. That is to say, as long as it is a rotatable component arranged in the developing box 100, it can be regarded as a rotating member, for example, a gear arranged at the end of the developing box 100 in the first direction. Further, the driving force receiving member 3 and the gear can be called an end extension member. It can be seen that the end extension member is a kind of rotating member. Therefore, the rotating member should be understood to include an intermediate extension member rotatably arranged between the two ends of the shell 1 and an end extension member rotatably arranged at the end of the shell 1. The intermediate extension member can be arranged inside the shell 1 or outside the shell 1.

[0034] like Figure 1A , Figure 1B and Figure 3 As shown, the developing box 100 includes a counting assembly 4 for interacting with a detection component in an imaging device, and at least a portion of the counting assembly 4 is exposed from the second end cover 12 so that the imaging device can obtain relevant information of the developing box 100; specifically, the counting assembly 4 includes a movable member 41 and a toggle member 42 separated from each other, and the movable member 41 is used to force the toggle member 42 to interact with the detection component; the movable member 41 and the toggle member 42 are eccentrically arranged, and the rotation axis L2 of the movable member 41 is parallel to but not overlapped with the rotation axis L1 of the toggle member 42, and the direction of the rotation axis L2 of the movable member 41 and the direction of the rotation axis L1 of the toggle member 42 are both perpendicular to the rotation axis L of the developing roller 21.

[0035] In some embodiments, the movable member 41 and the toggle member 42 may also adopt sliding, swinging and other movement modes.

[0036] When the movable part 41 is driven to move, the movable part 41 drives the toggle member 42 to move, and the toggle member 42 interacts with the detection component, so that the imaging device obtains information such as the life and model of the developing box 100; the developing box 100 also includes a connecting member 13 for positioning the counting component 4, the connecting member 13 is connected to the shell 1, and the movable part 41 and the toggle member 42 are installed to the shell 1 through the connecting member 13. Furthermore, the connecting member 13 includes a first connecting part 131 and a second connecting part 132 that are combined with each other, the first connecting part 131 is used to cooperate with the toggle member 42, and the second connecting part 132 is used to cooperate with the movable part 41.

[0037] like Figure 1A , Figure 1B and Figure 3 As shown, a power source 6 is also provided in the developing box 100, and the power output by the power source 6 is used to force the counting component 4 to move; in the present application, along the first direction, at least a part of the counting component 4 and the driving force receiving member 3 are respectively arranged at both ends of the shell 1, preferably, the power source 6 and the counting component 4 are both arranged at the non-driving end, so that the structural layout of the developing box 100 and the imaging device is more reasonable; the movement mode of each component in the counting component 4 can be rotation, sliding or swinging, etc.

[0038] The power source 6 can be set as a passive power output component or an active power output component. The passive power output component means that the power source 6 itself can accumulate power and output power, such as a torsion spring, a coil spring or a rubber band, etc. The active power output component means that the power source 6 can convert energy from the outside into the required power and output it, such as a motor.

[0039] In some embodiments, the counting component 4 may be disposed at the driving end, and the power source 6 may also be disposed at the driving end.

[0040] like Figure 4A As shown, the movable part 41 also has a base 411 and a plurality of mutually spaced protrusions 414 arranged on the base 411, the protrusions 414 are used to interact with the toggle member 42, and the arc length of each protrusion 414 and the interval between two adjacent protrusions 414 can be set according to the detection requirements; along the up and down directions, at least one extension body 415 is arranged above and below the base 411, and the extension body 415 can enable the movable part 41 to be installed on the connecting member 13, and can also be used to install the power source 6.

[0041] Trigger and Limiter

[0042] like Figure 3 and Figure 6As shown, the developing box 100 is also provided with a triggering member 5 for controlling the movement of the counting component 4, and a limiting member for limiting the movement of the triggering member 5. The limiting member can be a rotating member rotatably arranged in the developing housing 1. The power output by the power source 6 is transmitted to the triggering member 5 through the counting component 4. The triggering member 5 has an action position and an inaction position. When in the action position, the stirring member 23 (a kind of limiting member) limits the movement of the triggering member 5. The triggering member 5 directly or indirectly limits the power output of the power source 6. In the counting component 4, at least the toggle member 42 remains stationary. The counting component 4 does not interact with the detection component. In the inaction position, the stirring member 23 (a kind of limiting member) limits the movement of the triggering member 5. The triggering member 5 directly or indirectly limits the power output of the power source 6. The limiting member no longer limits the movement of the trigger member 5, and the trigger member 5 is movable relative to the developing housing 1. The trigger member 5 no longer limits the power output of the power source 6. Under the power output of the power source 6, the trigger member 5 moves from the action position to the non-action position. The power output of the power source 6 also drives the movable member 41 to move, and the counting component 4 interacts with the detection component; the trigger member 5 and the limiting member can interact with each other in a direct contact manner. In some feasible methods, the trigger member 5 and the limiting member can also interact with each other in a non-direct contact manner, for example, the trigger member 5 and the limiting member interact with each other through magnetic force.

[0043] Based on the inventive concept of the present invention, the movement mode of the trigger member 5 can be rotation, swinging or sliding, etc.; the following is an example in which the trigger member 5 indirectly limits the power output of the power source 6 by contacting the counting component 4.

[0044] In some embodiments, the limiting member may also adopt a sliding, swinging or other movement mode.

[0045] In the case where the limiting member is a rotating member, when the trigger member 5 abuts against the intermediate extension member, at least a portion of the trigger member 5 enters the carbon powder chamber 10. The following description takes the intermediate extension member as an example of a stirring member 23. Figure 3 and Figure 6 As shown, the developing box 100 includes a first side wall 1b1 and a second side wall 1b2 which are arranged relatively spaced apart along a first direction, and the toner chamber 10 is located between the first side wall 1b1 and the second side wall 1b2. Along a direction perpendicular to the first direction, at least a portion of the second side wall 1b2 overlaps with the trigger member 5. Preferably, the second side wall 1b2 is provided with a accommodating space 1b3 for accommodating the trigger member 5, and the accommodating space 1b3 connects the outside of the developing box 100 with the toner chamber 10, and the trigger member 5 is movably arranged in the accommodating space 1b3; a lubricating oil may be applied to the joint between the trigger member 5 and the accommodating space 1b3, or a sealing member may be provided to prevent the toner in the toner chamber 10 from leaking from the joint.

[0046] like Figure 3 , Figure 4A , Figure 4B and Figure 6 As shown, the stirring member 23 has a stirring shaft 231 and a limiting plate 232 arranged on the stirring shaft 231, and the limiting plate 232 is fixedly or movably installed on the stirring shaft 231. The limiting plate 232 includes at least one limiting portion 232a for limiting the movement of the trigger member 5 and at least one non-limiting portion 232b that does not limit the movement of the trigger member 5. The movable member 41 is provided with a triggered portion 413 for being triggered by the trigger member 5, and the triggered portion 413 is arranged on the base 411 / extension body 415; when in the action position, one end of the trigger member 5 abuts against the limiting portion 232a, and the other end abuts against the triggered portion 413 and interferes with the movable member 41, and the movable member 41 cannot move under the power output by the power source 6; when in the non-action position, one end of the trigger member 5 enters the non-limiting portion 232b, and the other end does not interfere with the movable member 41, and the movable member 41 can move under the power output by the power source 6; further, the triggered portion 413 has There are a first surface 4131 and a second surface 4132 inclined relative to the first direction, and the trigger member 5 has a third surface 51 and a fourth surface 52 inclined relative to the first direction; before the trigger member 5 is released from the restriction, the first surface 4131 abuts against the third surface 51; when the trigger member 5 is released from the restriction, the power output by the power source 6 is transmitted to the trigger member 5 through the movable member 41, specifically, the power is transmitted to the third surface 51 through the first surface 4131, so that the trigger member 5 moves from the action position to the non-action position, and at the same time, the movable member 41 moves along the movement direction R under the action of the power output by the power source 6; in the present application, the movement direction of the trigger member 5 is preferably the first direction, and the trigger member 5 and the counting component 4 are arranged at the same end of the developing box 100, and the trigger member 5 will not affect the fluidity of the toner. At the same time, the material of the trigger member 5 can be selected in a wider range, as long as the trigger member 5 can move between the action position and the non-action position.

[0047] like Figure 4AAs shown, the movable member 41 is provided with a force-bearing portion 416 for forcing the counting assembly 4 to reset. When the counting assembly 4 needs to be reset, for example, when the toner in the toner chamber 10 is exhausted, the developing box 100 needs to be taken out and the toner needs to be replenished. Before the developing box 100 is installed in the imaging device again, the counting assembly 4 needs to be reset first, so that after the developing box 100 is installed in the imaging device again, the imaging device can re-acquire the relevant information of the developing box 100. Specifically, the operator can cooperate with the force-bearing portion 416 through an operating tool, such as a screwdriver, to apply a force in the opposite direction to the movement direction R of the movable member 41 to the force-bearing portion 416. When the second surface 4132 abuts against the fourth surface 52, the operator continues to apply a force to the force-bearing portion 416 in the direction opposite to the movement direction R, so that the triggered portion 413 passes over the trigger member 5, and the first surface 4131 abuts against the third surface 51 again, thereby completing the reset of the counting assembly 4. Preferably, the force-bearing portion 416 is arranged on the extension body 415.

[0048] like Figure 2 and Figure 4B As shown, the trigger member 5 also has a fifth surface 53 inclined relative to the first direction. When the limiting member moves to the limiting portion 232a and abuts against the trigger member 5 again, the limiting portion 232a cooperates with the fifth surface 53 to force the trigger member 5 to move from the non-active position to the active position.

[0049] In some embodiments, the trigger member 5 is in direct contact with the power source 6 to limit the power output of the power source 6 .

[0050] In some embodiments, the limiting member can also be a protrusion that can move with the rotation of the intermediate extension member. For example, the protrusion is arranged at the end of the intermediate extension member, and the second side wall 1b2 is provided with a accommodating space for accommodating the protrusion. The accommodating space 1b3 is connected to the carbon powder chamber 10, and the trigger member 5 can be movably arranged in the accommodating space. The purpose of the present invention is achieved by the abutment between the protrusion and the trigger member 5.

[0051] In some embodiments, Figure 3 As shown, the developing box 100 further has an accessory 1b4 disposed on the second side wall 1b2, and the accessory 1b4 is connected to the accommodating space 1b3, and is used to extend the length of the accommodating space 1b3, so that the movement of the trigger member 5 is smoother.

[0052] In some embodiments, the trigger member 5 is not in contact with the intermediate extension member, and the second side wall 1b2 does not overlap with the trigger member 5 along a direction perpendicular to the first direction. At this time, the trigger member 5 can be arranged outside the carbon powder chamber 10. Specifically, the trigger member 5 and the intermediate extension member interact with each other through magnetic force. For example, the trigger member 5 and the intermediate extension member are maintained in the active position by magnetic attraction or magnetic repulsion. When the trigger member 5 receives power from the power source 6 sufficient to overcome the magnetic attraction or magnetic repulsion, the trigger member 5 moves from the active position to the inactive position. The accommodating space 1b3 is not connected to the carbon powder chamber 10, and the purpose of the present invention can also be achieved. At the same time, the integrity of the second side wall 1b2 can be maintained, and the risk of powder leakage can be eliminated.

[0053] In some embodiments, when the trigger member 5 abuts against the end extension member, the trigger member 5 may also adopt a movement mode such as rotation, sliding or swinging, and the trigger member 5 may move along a first direction or a direction intersecting with the first direction, as long as the trigger member 5 can move between the active position and the inactive position.

[0054] In some embodiments, the trigger member 5 does not contact the end extension member, and the trigger member 5 and the end extension member interact with each other through magnetic force.

[0055] In some embodiments, the trigger member 5 and the movable member 41 may also interact with each other through magnetic force, so that in the non-active position, the power output by the power source 6 is limited to force the movable member 41 to move.

[0056] In some embodiments, the counting component 4 and the driving force receiving member 3 can also be arranged on the same side of the developing box 100. In this case, the power required for the counting component 4 to work still comes from the power source 6, and the power required for the trigger member 5 to move from the non-active position to the active position can come from the rotating member.

[0057]

Speed ​​control mechanism

[0058] like Figure 4A and Figure 4C As shown, when the power source 6 is set as a passive power output member, the power output by the power source 6 will gradually decrease. Therefore, the developing box 100 is also provided with a speed control mechanism for keeping the movement speed of the counting component 4 constant. Preferably, the speed control mechanism is arranged inside the counting component 4. Furthermore, the speed control mechanism includes at least a part of the movable member 41 and / or at least a part of the toggle member 42.

[0059] In some embodiments, the speed control mechanism includes at least a portion of a radially outermost surface 412 of a base 411, and the diameter of the radially outermost surface 412 of the base 411 is set to be variable. When the base 411 is projected onto a plane perpendicular to its rotation axis L2, the outermost side of the base 411 forms a spiral line; specifically, two points P and Q are arbitrarily selected on the radially outer surface of the base 411, and point P is located upstream of point Q along the movement direction R of the movable part 41; the shortest distance from point P to the rotation center L2 is S2, and the shortest distance from point Q to the rotation center L2 is S1, S1<S2, and thus, along the movement direction R of the movable part 41, the diameter of the radially outer surface of the base 411 gradually decreases, and the radially outer surface of the base 411 is the radially outermost surface 412; a circle O is drawn with the rotation center L2 of the movable part 41 as the center, and the circle O passes through the minimum diameter of the projection of the base 411, such as Figure 4C As shown, the circle O passes through the endpoint K, at which the diameter of the circle O is the smallest, so that the diameter change of the radial outer surface of the base 411 can be intuitively seen; because in the initial stage of the passive power output part outputting power, the power output by the passive power output part is relatively large, through the friction between the radial outermost surface 412 of the base 411 and the second end cover 12 / developing shell 1, a part of the relatively large power can be consumed, and as time goes by, the power output by the passive power output part becomes smaller and smaller, and through the speed control mechanism 6, the counting component 4 can still maintain a constant movement speed, which is beneficial to improve the information recognition accuracy of the developing box 100.

[0060] In some embodiments, the base 411 has a friction member arranged on the radial outer surface, and the outer surface of the friction member becomes the radial outermost surface 412 of the base 411. The outer surface of the friction member is also arranged to form the above-mentioned spiral line. Overall, the diameter of the radial outermost surface 412 of the base 411 is variable.

[0061] In some embodiments, the speed control mechanism may include at least a portion of the counting assembly 4, may also include at least a portion of the developing housing 1, and may also include at least a portion of the second end cover 12. Specifically, as Figure 4A , Figure 4C and Figure 5 As shown, during the counting process of the counting assembly 4, a portion of the outer surface of the developing housing 1 or a portion of the inner surface 121 of the second end cover 12 contacts with at least a portion of the radially outermost surface 412 of the movable member 41. Therefore, the speed control mechanism may include at least one of a portion of the outer surface of the developing housing 1 or a portion of the inner surface 121 of the second end cover 12 and a portion of the radially outermost surface 412 of the base 411 of the movable member 41.

[0062] In some embodiments, at least one of a portion of the outer surface of the developing housing 1 or a portion of the inner surface of the second end cover 12 and at least a portion of the radially outermost surface 412 of the movable member 41 is set to a rough surface, so that the movement speed of the movable member 41 is controlled to control the movement speed of the toggle member 42, so that the toggle member 42 can move at a uniform speed.

[0063] In some embodiments, a friction member is disposed on at least one of a portion of the outer surface of the developing housing 1 or a portion of the inner surface of the second end cover 12 and at least a portion of the radially outermost surface 412 of the movable member 41 .

[0064] In some embodiments, the movement speed of the counting assembly 4 can be effectively controlled by changing the friction coefficient of the friction member. For example, along the movement direction of the movable member 41 or the toggle member, the friction coefficient of the friction member gradually decreases.

[0065] In some embodiments, along the movement direction R of the movable member 41, a portion of the outer surface 1b4 of the developing housing 1 or a portion of the inner surface 121 of the second end cover 12 is configured to gradually approach the center of the toggle member 42. Specifically, the curvature of the portion of the outer surface 1b4 of the developing housing 1 or the curvature of the portion of the inner surface 121 of the second end cover 12 gradually decreases, or, a portion of the outer surface 1b4 of the developing housing 1 or a portion of the inner surface 121 of the second end cover 12 is inclined relative to the first direction; in a mode in which the toggle member 42 performs a rotational motion, the center refers to the rotation center L1 of the toggle member 42, and in a mode in which the toggle member 42 performs a sliding motion, the center refers to the center of gravity or the geometric center of the toggle member 42; the above-mentioned embodiments can be combined with this embodiment to further improve the speed control effect.

[0066] In some embodiments, the speed control mechanism includes at least a portion of the movable member 41 and at least a portion of the toggle member 42 , and is disposed between the movable member 41 and the toggle member 42 .

[0067] When the power source 6 is set as an active power output component, the trigger component 5 can be set to control the operation of the active power output component by moving in a first direction / a direction intersecting the first direction. Since the active power output component can output power at a uniform speed, a speed control mechanism is not required in this case, and the rotation speed of the counting component 4 can also be kept constant, thereby further simplifying the structure of the developing box 100.

[0068] When the developing box 100 is not installed on the imaging device, the trigger member 5 remains in the active position, one end of the trigger member 5 abuts against the limiting portion 232a, and the other end abuts against the triggered portion 413. At this time, the stirring member 3 limits the movement of the trigger member 5, and the trigger member 5 limits the power output of the power source 6. In the counting component 4, at least the toggle member 42 remains stationary.

[0069] After the developing box 100 is installed in the imaging device and is working, the trigger member 5 moves from the action position to the non-action position. Specifically, the driving force receiving member 3 directly or indirectly drives the stirring member 23 to rotate, and the trigger member 5 gradually disengages from the limiting portion 232a and is opposite to the non-limiting portion 232b. At this time, when the stirring member 23 no longer restricts the movement of the trigger member 5, the trigger member 5 moves from the action position to the non-action position under the power output of the power source 6. The power output of the power source 6 also drives the movable member 41 to move. Further, as Figure 4C As shown, the counting assembly 4 starts to rotate along the movement direction R, and drives the shifting member 42 to move, so that the shifting member 42 cooperates with the detection component in the imaging device, so that the imaging device obtains relevant information of the developing box 100.

[0070] During the counting process, since the rotation angle of the counting component 4 is less than one circle, even if the trigger member 5 is pushed again toward the direction close to the movable member 41 by the limiting portion 232a, and the trigger member 5 enters the movable range of the movable member 41, it will not affect the counting component 4.

[0071] In some embodiments, by setting the abutment position of the trigger member 5 and the limiting plate 232 of the stirring member 23 differently, the moment when the trigger member 5 reaches the non-active position from the active position can be changed, thereby making the moment when the toggle member 42 interacts with the detection component in the imaging device different. Therefore, the abutment position of the trigger member 5 and the limiting plate 232 can be adjusted according to the detection requirements of the detection component, so that the toggle member 42 and the detection component can start to interact with each other at a predetermined moment.

[0072] In some embodiments, the movement direction of the trigger member 5 may also be a direction intersecting with the first direction, as long as it is not parallel to the movement direction of the movable member 41 .

[0073] In some embodiments, the initial contact position between the stirring member 23 and the trigger member 5 can be set according to the timing requirements / detection times in the counting process, or the limiting plate 232 of the stirring member 23 can be respectively provided with multiple limiting portions 232a and non-limiting portions 232b.

[0074] In summary, the following beneficial effects can be achieved through this solution:

[0075] 1. The power source 6 and the counting assembly 4 are disposed at the same end of the developing box 100 , which is beneficial to simplifying the structure of the developing box 100 .

[0076] 2. When the power source 6 is set as a passive power output device, a speed control mechanism for controlling the movement speed of the counting component 4 is also provided in the developing box 100, so that the counting component 4 can further move at a uniform speed, and the combination process of the toggle member 42 and the detection component of the imaging device is more stable, which is beneficial to improve the information recognition accuracy of the developing box 100; even in the initial stage of the passive power output device outputting power, the power output by the passive power output device is relatively large, and through the speed control mechanism 6, the counting component 4 can still maintain a constant movement speed.

[0077] 3. The trigger member 5 and the counting assembly 4 are arranged on the same side of the developing box 100. The trigger member 5 does not need to extend from one end of the developing box 100 to the other end along the first direction, so as not to affect the fluidity of the toner and reduce the production cost. At the same time, the material range of the trigger member 5 is wider.

Claims

1. A developing cartridge, detachably mounted in an imaging device provided with a detection component, characterized in that: The developing box comprises: a developing housing, forming a toner chamber for containing toner; A developing roller is rotatably disposed in the developing housing and is used to carry carbon powder, wherein the rotation axis of the developing roller extends in a first direction; A counting assembly, arranged at one end of the developing housing, for interacting with the detecting component; A power source, used to output power to the counting component; A trigger member having an action position and an inaction position; In the action position, the movement of the trigger member is restricted, the power output by the power source is restricted by the trigger member, and the counting component does not interact with the detection component; In the non-active position, the trigger member is movable relative to the developing housing, and the trigger member does not limit the power output of the power source. Under the power output of the power source, the trigger member moves from the active position to the non-active position, and the counting component interacts with the detection component.

2. The developing cartridge according to claim 1, characterized in that: The developing box is provided with a limiting member for limiting the movement of the triggering member, and the limiting member is movable relative to the developing housing; The limiting member is provided with at least one limiting portion for limiting the movement of the trigger member and at least one non-limiting portion that does not limit the movement of the trigger member; In the action position, the trigger member is restricted by the restriction member and cannot move; In the non-acting position, the trigger member is not restricted by the restriction member and can move relative to the developing housing.

3. The developing cartridge according to claim 2, characterized in that: The limiting member is an intermediate extending member extending between two end portions of the developing box in the first direction.

4. The developing cartridge according to claim 2, wherein: The limiting member is an end extension member arranged at the end of the developing box in the first direction.

5. The developing cartridge according to claim 3, characterized in that: The developing box comprises a first side wall and a second side wall which are arranged relatively and spaced apart along a first direction, and at least a portion of the second side wall overlaps with the trigger member along a direction perpendicular to the first direction.

6. The developing cartridge according to claim 5, characterized in that: The second side wall is provided with an accommodation space for accommodating the trigger member, and the trigger member is movably arranged in the accommodation space.

7. The developing cartridge according to claim 6, wherein: The carbon powder chamber is located between the first side wall and the second side wall; the accommodating space is communicated with the carbon powder chamber.

8. The developing cartridge according to claim 1, wherein: The developing box is provided with a limiting member for limiting the movement of the triggering member, and the limiting member is movable relative to the developing housing; the triggering member and the limiting member interact with each other through magnetic force, and / or the triggering member and the counting component interact with each other through magnetic force.

9. The developing cartridge according to claim 1, wherein: The trigger member is configured to slide between an active position and an inactive position.

10. The developing cartridge according to claim 1, wherein: The trigger member moves along a direction parallel to the first direction.

11. The developing cartridge according to any one of claims 1 to 10, characterized in that: The power source is a passive power output device that can store power and output power, or an active power output device that can convert external energy into required power.

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