CN114077174A - Developing box - Google Patents
Developing box Download PDFInfo
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- CN114077174A CN114077174A CN202010814899.6A CN202010814899A CN114077174A CN 114077174 A CN114077174 A CN 114077174A CN 202010814899 A CN202010814899 A CN 202010814899A CN 114077174 A CN114077174 A CN 114077174A
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- 238000001514 detection method Methods 0.000 claims abstract description 214
- 238000000034 method Methods 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
- Electrophotography Configuration And Component (AREA)
Abstract
A developing cartridge detachably mountable to an image forming apparatus having a detecting unit, the developing cartridge includes: a housing in which a developer can be accommodated; a driving force receiving member provided at one side of the housing, receiving and transmitting a driving force from the image forming apparatus; a detected unit that can receive the driving force transmitted by the driving force receiving member; the detected unit comprises a detection gear, a detection member and a reset member, the reset member is arranged between the detection gear and the detection member, the detection member can be in contact with the detection unit and is detected by the detection unit, the detection gear can receive the driving force transmitted by the driving force receiving member and drive the detection member to rotate through the reset member, and the detection member can drive the reset member to rotate relative to the detection gear.
Description
Technical Field
The present invention relates to a developing cartridge, and more particularly, to a unit to be detected of a developing cartridge.
Background
In a related-art image forming apparatus such as a laser printer, a developing cartridge is attachable to and detachable from a main body of the image forming apparatus. After the developer in the developing cartridge is used up, it is necessary to take out the developing cartridge from the main body of the image forming apparatus and mount a new developing cartridge into the main body; or when a paper jam occurs, the developing cartridge is also taken out of the main body of the image forming apparatus and then loaded into the image forming apparatus. The image forming apparatus is generally provided with a detection unit; the image forming apparatus can determine specific information such as the model number, the capacity size, the freshness of the developing cartridge and the like according to the number of times the detecting unit is contacted, the time interval and the like.
To developing cartridge manufacture factory, developing cartridge need test it before dispatching from the factory, and after the test is accomplished, the back can reset developing cartridge's counting mechanism, and no person, end user is when using this developing cartridge, and equipment can indicate this developing cartridge is not a new developing cartridge. The reset mode of the existing counting mechanism needs to firstly disassemble the end cover of the developing box and then reset the counting mechanism, the reset operation is troublesome, the production efficiency of the developing box is reduced, the production cost of the developing box is increased, and the service life of the developing box is reduced.
Disclosure of Invention
The invention aims to provide a developing box, which solves the problems of high production cost and easy error reporting of the developing box in the prior art, and in order to solve the technical problems, the developing box is realized by the following technical scheme:
a developing cartridge detachably mountable to an image forming apparatus having a detecting unit, comprising:
a housing in which a developer can be accommodated;
a driving force receiving member provided at one side of the housing, receiving and transmitting a driving force from the image forming apparatus;
a detected unit that can receive the driving force transmitted by the driving force receiving member;
the detected unit comprises a detection gear, a detection component and a reset component;
the reset member is disposed between the detection gear and the detection member, the detection member can contact with the detection unit and be detected by the detection unit, the detection gear can receive the driving force transmitted by the driving force receiving member and drive the detection member to rotate through the reset member, and the detection member can drive the reset member to rotate relative to the detection gear.
Further, the return member includes an elastic member and a slider, the elastic member is provided between the slider and the detection gear for restricting displacement of the slider and the detection gear in the axial direction of the detection gear, and the slider is rotatable relative to the detection gear.
Further, the slider includes a main body and a hooking portion extending from the main body, an inner peripheral surface of the detection gear is formed as an inner-engaging wheel, and the hooking portion is fittingly connected with the inner-engaging wheel.
Further, the hooking part comprises an elastic arm extending from the main body and a barb arranged at one end of the elastic arm, and the barb can be engaged with the inner connecting gear.
Further, the number of the hooking parts is at least three.
Further, the detection member is provided with a limit post, the slider is provided with a groove, and the limit post can move relative to the groove.
Further, the detection device further comprises an elastic member and a fixed member, wherein the elastic member is arranged between the fixed member and the detection member and urges the detection member to move towards one side close to the shell.
In another aspect, the present invention provides a method for resetting a detected unit of a developing cartridge, wherein the detected unit of the developing cartridge includes a detection gear, a detection member and a reset member, the detection member can reach an end position from an initial position to complete detection, the detection member can drive the reset member to rotate relative to the detection gear, the developing cartridge is provided with a limit portion for preventing the detection member from reaching the initial position from the end position, the method for resetting the detected unit of the developing cartridge is used for enabling the detection member to reach the initial position from the end position, and the method for resetting the detected unit of the developing cartridge includes:
step A, applying external force to the detection member to enable the detection member to move to a first position along the axial direction;
and B, rotating the detection member to enable the detection member to drive the reset member to rotate relative to the detection gear, so that the detection member passes over the limiting part from the first position to reach the initial position.
Further, in the step B, the detection member is in interference fit with the stopper portion and jumps over the stopper portion.
Further, in the step B, the detection member rotates in the same direction as the detected rotation direction over the stopper portion.
The detected unit of the developing box is provided with the reset component, the reset component is arranged between the detection gear and the detection component, the detection component can be contacted with the detection unit and detected by the detection unit, the detection gear can receive the driving force transmitted by the driving force receiving component and drive the detection component to rotate through the reset component, and the detection component can drive the reset component to rotate relative to the detection gear. Utilize the reset component both can realize being detected the count function of unit, also realize through simple operation that reduction in production cost to the detection unit's of developing box is reduced, and the process that resets need not to demolish the protecting cover, makes things convenient for end user's operation, has improved the life of developing box.
Description of the drawings:
FIG. 1 is a schematic structural view of a developing cartridge in an embodiment of the invention;
FIG. 2 is another schematic view of the structure of the developing cartridge in the embodiment of the present invention;
FIG. 3 is an exploded view of a unit to be detected of the developing cartridge in the embodiment of the present invention;
FIG. 4 is a schematic structural view of a unit to be detected of the developing cartridge in the embodiment of the present invention;
FIG. 5 is a schematic view of the structure of a protective cover in an embodiment of the invention;
FIG. 6 is an enlarged cross-sectional view of an embodiment of the protective cover of the present invention;
FIG. 7 is another schematic view of the protective cover of the present embodiment;
FIG. 8 is a schematic structural view of a detecting member in the embodiment of the present invention;
fig. 9 is an exploded view of the developing cartridge detecting gear and the reset member in the embodiment of the present invention;
FIG. 10 is a schematic view of the structure of the detection gear in the embodiment of the present invention;
FIG. 11 is a schematic view of a slider according to an embodiment of the present invention;
FIG. 12 is another schematic view of the slider according to the embodiment of the present invention;
FIG. 13 is another schematic structural view of a unit to be detected of the developing cartridge in the embodiment of the present invention;
FIG. 14 is a schematic configuration diagram showing a detection state of a detected unit of the developing cartridge in the embodiment of the present invention;
FIG. 15 is a schematic configuration diagram showing a reset state of a detected unit of the developing cartridge in the embodiment of the present invention;
FIG. 16 is a flowchart illustrating a method for resetting a detected unit of a developing cartridge according to an embodiment of the present invention.
The specific implementation mode is as follows:
in order to make the object, technical scheme and technical effect of the embodiment of the present invention clearer, the technical scheme of the developing cartridge of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be apparent that the described embodiment is only one preferred embodiment of the present invention, not all embodiments, and other embodiments obtained without inventive efforts by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a developing cartridge including a casing 1 configured to store a developer therein; a driving force receiving member 2 for receiving a driving force from the image forming apparatus is provided on the left side of the casing 1; the left side of the housing 1 is also provided with a gear train that can transmit the driving force from the driving force receiving member 2; an agitating frame (not shown) located inside the casing 1, both ends of which are supported by the casing 1, respectively, for agitating the developer located inside the casing 1, and the structure of the agitating frame may be the same as that commonly found in the prior art; also on the right side of the housing 1 is a transmission gear 3, and the transmission gear 3 may be mounted on a stirring frame (not shown) and may receive a driving force transmitted from the driving force receiving member 2 through the stirring frame (not shown); and a detection unit 4 located at the right end of the housing 1 and capable of receiving the driving force from the transmission gear 3 and detecting the driving force by a detection unit of the image forming apparatus.
As shown in fig. 3 and 4, the detected unit 4 of the present invention includes: a cover 41, a detection gear 42, a detection member 43, a return member 44, an elastic member 45, and a fixing member 46. The protective cover 41 is made of a resin material, is detachably attached to the right side of the housing 1, and covers the transmission gear 3, so that the transmission gear 3 can be prevented from being interfered by foreign substances to smoothly transmit the driving force to the detected unit 4. Wherein, the reset component 44 is disposed between the detecting gear 42 and the detecting component 43, the detecting component 43 can contact with the detecting unit and be detected by the detecting unit, the detecting gear 42 can receive the driving force transmitted by the driving force receiving component 2 and drive the detecting component 43 to rotate through the reset component 44, and the detecting component 43 can drive the reset component 44 to rotate relative to the detecting gear 42.
As shown in fig. 5 and 6, the protecting cover 41 is provided with a positioning column 411, a flat surface 412, an inclined surface 413, an initial limiting portion 414 and a final limiting portion 415. The positioning column 411 extends from the bottom surface of the protecting cover 41 to the direction of the housing 1, the fixing member 46 fixes one end of the positioning column 411, the initial limiting portion 414 is configured as a protrusion protruding from the plane 412, and the plane 412 extends around the positioning column 411; the inclined surface 413 extends continuously from the plane 412 and inclines downwards from the plane 412; the termination-restricting portion 415 is configured to be formed as a rib. An elastic member 45 is disposed between a fixing member 46 and the detecting member 43, and urges the detecting member 43 to move toward a side close to the housing 1, in this embodiment, the fixing member 46 is a cap screw, and the elastic member 45 is a compression spring.
As shown in fig. 9 to 13, the detection gear 42 is configured to have a full-tooth gear formed on the entire outer circumference thereof, having a plurality of gear teeth. The inner circumference of the detection gear 42 is provided as an inner-connecting wheel 421, the reset member 44 is provided in the inner-connecting wheel 421, the reset member 44 includes an elastic member 442 and a sliding member 441, the elastic member 442 is provided between the sliding member 441 and the detection gear 42 for urging the sliding member 441 to move the sliding member 441 toward the side close to the housing 1, and the sliding member 441 is rotatable relative to the detection gear 42. The sliding member 441 includes a body 442 and a hooking portion 443 extending from the body 442, and the hooking portion 443 is engaged with the internal ratchet 421. The hooking portion 443 includes an elastic arm 4431 extending from the main body 442 and a barb 4432 provided at one end of the elastic arm 4431, the barb 4432 being engageable with the internal gear 421, and the slider 441 being rotatable relative to the detection gear 42. Preferably, the number of the hooking portions 443 is at least three, so that the slider 441 can be stably engaged with the detection gear 42. The slider 441 is provided with a groove 444 on the inner circumference thereof, the groove 444 is configured to be disposed around a part of the inner circumference of the detection gear 42, a first stopper wall 445 and a second stopper wall 446 are provided at the start position and the end position of the groove 444, respectively, the detection gear 42 is further provided with a first receiving hole 422, and the slider 441 is provided with a second receiving hole 448 for receiving the mounting detection member 43. The slider 441 further includes a stopper portion 447, which extends from one side of the first stopper arm and stops the displacement of the detection member 43 in the direction of the housing 1.
As shown in fig. 7, the protective cover 41 is further provided with a latch 416, and the latch 416 is used for latching and fixing the detection gear 42. Specifically, the locking portion 416 extends from the cover 41 to the detection gear 42 to form a boss 4161, the boss 4161 is provided with an inclined surface (not numbered), when the detection gear 42 is mounted, the detection gear 42 presses against the inclined surface to force the boss 4161 to deform, the detection gear 42 is gradually mounted into the cover 41 towards the right side, when the detection gear 42 is mounted, the detection gear 42 is completely located at the right side of the boss 4161, and the boss 4161 is reset to stop the displacement of the detection gear 42 towards the left side. The surface of the boss 4161 is further provided with a reinforcing rib 4162 to enhance the strength of the boss 4161 and prevent the boss 4161 from being broken.
As shown in fig. 8, the detection member 43 is configured in a substantially disk shape, and the detection member 43 includes a guide post 431, a stopper post 432, and a detected part 433 detectable by a detection unit of the image forming apparatus. When the guide post 431 abuts against the initial stopper 414, the detection member 43 is located at the detection initial position; when the guide post 431 abuts against the end stopper 415, the detection member 43 is located at the detection end position. The detecting member 43 further includes a positioning portion 434, and the protective cover 41 further includes a positioning projection 417, the positioning portion 434 can cooperate with the positioning projection 417 to indicate the initial position of the detecting member 43, that is, when the detecting member 43 is located at the initial position, the positioning portion 434 and the positioning projection 417 abut against each other.
The detection process of the detected unit 4 according to the present invention will be described in detail with reference to fig. 4 to 14. When the detection gear 42 is located at the initial position shown in fig. 13, the positioning portion 434 on the detection member 43 abuts against the positioning projection 417 on the protective cover 41, the limit post 432 on the detection member 43 abuts against the first limit wall 445 on the sliding member 441, and the guide post 431 abuts against the initial limit portion 414 on the protective cover 41 and is located on the plane 412 of the protective cover 41; when the detection gear 42 rotates in the M direction, the detection gear 42 rotates the slider 441 by the engagement between the internal-connecting ratchet 421 and the hooking portion 443 of the slider 441, the first stopper wall 445 rotates away from the stopper post 432 following the slider 441, and at this time, the detection member 43 cannot receive the driving force from the detection gear 42, and the detection member 43 does not rotate following the detection gear 42; when the detection gear 42 rotates by a predetermined angle, the second limit wall 446 abuts against the limit post 432 of the detection member 43, when the detection gear 42 further rotates, the slider 441 will rotate along with the detection gear 42, at the same time, due to the cooperation of the second limit wall 446 of the slider 441 and the limit post 432 of the detection member 43, the detection member 43 will rotate along with the slider 441, so that the detection gear 42 can rotate the detection member 43 along with the slider 441, while the guide post 431 abuts against the plane 412 and receives the driving force transmitted by the detection gear 42 to rotate along with the detection member 43, when the detection member 43 rotates, the detected portion 433 can contact with and apply force to the detection unit in the image forming apparatus, the detection unit rotates upon receiving the force of the detected portion 433, the control unit (not shown) in the image forming apparatus recognizes the rotation of the detection unit, a plurality of detected parts 433 which are arranged and distributed at intervals along the circumferential direction of the detecting member 43, and when the detected parts 433 are arranged in a plurality, the detected parts 433 rotate along the plane 412, and contact with the detecting unit 3 in the image forming apparatus for a plurality of times to force the detecting unit to rotate, so that signals are output for a plurality of times; when the detection gear 42 drives the detection member 43 to rotate further, the guide post 431 of the detection member 43 leaves the plane 412 and abuts against the inclined plane 413, and the inclined plane 413 is inclined relative to the plane 412 and is closer to the housing 1, so that the detection member 43 loses stable support, and at the same time, the elastic member 45 urges the detection member 43 to rotate further along the inclined plane 413 quickly and simultaneously the detection member 43 moves towards the side close to the housing 1, when the guide post 431 of the detection member 43 rotates along the inclined plane 413 and abuts against the stop limiting part 415, the detection member 43 stops rotating, and the guide post 431 of the detection member 43 is limited at the stop position; at this time, the stopper post 432 of the detecting member 43 moves in the direction approaching the housing 1 following the guide post 431 and disengages from the groove 444 of the slider 441 to be no longer in contact with the first stopper wall 445 and the second stopper wall 446, and when the detecting gear 42 continues to rotate by continuously receiving the driving force transmitted from the transmission gear 3, the detecting member 43 is disengaged from the groove 444 of the slider 441 and stops at the end position without following the slider 441 and the detecting gear 42 to rotate together, and the detecting member 43 completes the detecting process.
The reset process of the detected unit 4 according to the present invention will be described in detail with reference to fig. 13 to 15. In order that the detected unit 4 can be detected again by the detecting unit in the image forming apparatus, the detected unit 4 needs to be reset, wherein the resetting process of the detected unit 4 includes: applying a force to the detection member 43 in the axial direction of the detection member 43 forces the detection member 43 to move away from the housing 1, at which time the stopper post 432 of the detection member 43 enters the groove 444 of the slider 441; an external force is applied to the detection member 43 to rotate the detection member 43 in the direction M, so that the stopper post 432 positioned in the groove 444 abuts against the first stopper wall 445 and the stopper portion 447. The detection member 43 is rotated continuously in the direction M, the sliding member 441 rotates with the urging of the stopper post 432, the detection gear 42 is engaged with the transmission gear 3, and at this time, the transmission gear 3 is kept stationary by driving, the detection gear is kept stationary by the urging force of the engagement between the detection gear 42 and the transmission gear 3, and the urging force is larger than the force that elastically deforms the elastic arm 4431 of the hooking portion 443, causing the elastic arm 4431 of the hooking portion 443 to deform, disengaging the barb 4432 from the gear teeth of the currently engaged inside-dog wheel 421 and engaging with the next gear teeth of the inside-dog wheel 421, when the detection member 43 drives the sliding member 441 to rotate continuously, the detection member 43 drives the sliding member 441 to rotate relative to the detection gear 42 by the sequential engagement and disengagement of the barb 4432 with the gear teeth of the inside-dog wheel 421, when the guide post 431 of the detection member 43 initially abuts against the stopper portion 414, when the positioning portion 434 of the detecting member 43 and the positioning projection 417 of the cover 41 abut against each other, the detecting member 43 is returned to the initial position, and at this time, the rotation of the detecting member 43 is stopped, and the return of the detected unit 4 is completed. The rotation reset of the detection member 43 is realized under the condition that the detection gear 42 is kept not to rotate, the reset of the detected unit 4 of the developing box can be realized through simple operation, the production cost is reduced, the reset process does not need to dismantle the protective cover 41, the operation of an end user is facilitated, and the service life of the developing box is prolonged.
It is noted that, as shown in fig. 6, the distance between the surface of the initial stopper portion 414 and the casing 1 is larger than the distance between the flat surface 412 and the casing 1, so that the detection member 43 can be blocked from entering the end position from the initial stopper portion 414 in the opposite direction of the detected rotation direction M, causing malfunction of the detected unit 4, resulting in failure to detect the developing cartridge. Since the detecting member 43 needs to reach the initial position from the end position beyond the initial stopper portion 414 at the time of resetting, the guide post 431 of the detecting member 43 interferes while passing over the initial stopper portion 414, and when the detecting member 43 interferes with the initial stopper portion 414, a predetermined external force is continuously applied to the detecting member 43, that is, the detecting member 43 generates a displacement in the axial direction away from the housing 1 and jumps over the initial stopper portion 414, and when the detecting member 43 passes over the initial stopper portion 414, the detecting member 43 is displaced in the axial direction toward the housing 1 and reaches the initial position.
The detected unit of the developing cartridge of the embodiment is provided with a reset member, the reset member is arranged between the detection gear and the detection member, the detection member can be contacted with the detection unit and detected by the detection unit, the detection gear can receive the driving force transmitted by the driving force receiving member and drive the detection member to rotate through the reset member, and the detection member can drive the reset member to rotate relative to the detection gear. Utilize the reset component both can realize being detected the count function of unit, also realize through simple operation that reduction in production cost to the detection unit's of developing box is reduced, and the process that resets need not to demolish the protecting cover, makes things convenient for end user's operation, has improved the life of developing box.
As shown in fig. 16, on the basis of the above-mentioned developing cartridge, the present invention further provides a method for resetting a detected unit of a developing cartridge, specifically, the detected unit of a developing cartridge includes a detection gear, a detection member and a resetting member, the detection member can reach an end position from an initial position to complete detection, the detection member can drive the resetting member to rotate relative to the detection gear, the developing cartridge is provided with a limit portion for preventing the detection member from reaching the initial position from the end position, the resetting method for the detected unit of a developing cartridge is used for enabling the detection member to reach the initial position from the end position, and the resetting method for the detected unit of a developing cartridge includes:
step A, applying external force to the detection component to enable the detection component to move to a first position along the axial direction;
and step B, rotating the detection member to enable the detection member to drive the reset member to rotate relative to the detection gear, so that the detection member crosses the limiting part from the first position to reach the initial position.
In the present embodiment, the distance between the detection member and the housing at the end position is smaller than the distance between the detection member and the housing at the initial position in the axial direction of the detection member, a stopper portion is formed between the end position and the initial position, the stopper portion blocks the detection member from reaching an initial position from an end position in a detected rotational direction, the detection member is moved to a second position in an axial direction by applying an external force to the detection member, wherein, the distance between the detecting component and the shell at the second position is equal to the distance between the detecting component and the shell at the initial position, and the detecting component is rotated to drive the resetting component to rotate relative to the detecting gear, the detection member can be rotated to an initial position beyond the limiting part under the state that the detection gear is kept not to rotate, and the reset of the detection member, namely the reset of the detected unit of the developing box is completed.
Further, in step B, the detection member is in interference fit with the stopper portion and jumps over the stopper portion. In this embodiment, the height of the position-limiting portion relative to the housing is slightly greater than the distance between the detection member and the housing when the detection member is at the initial position, so that the detection member interferes with the position-limiting portion when rotating from the first position to the initial position, and when the detection member interferes with the position-limiting portion, a predetermined external force is continuously applied to the detection member, so that the detection member generates a displacement jump in the axial direction away from the housing and crosses the position-limiting portion, and after the displacement jump crosses the position-limiting portion, the detection member displaces towards the housing along the axial direction to reach the initial position. Wherein the detection member rotates in the same direction as the detected rotation direction over the stopper portion. The distance from the end position to the initial position of the detection member is short, so that the detection member can be quickly reset, the operation steps can be simplified, and the resetting operation difficulty can be reduced.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A developing cartridge detachably mountable to an image forming apparatus having a detecting unit, comprising:
a housing in which a developer can be accommodated;
a driving force receiving member provided at one side of the housing and capable of receiving and transmitting a driving force from the image forming apparatus;
a detected unit that can receive the driving force transmitted by the driving force receiving member;
the device is characterized in that the detected unit comprises a detection gear, a detection component and a reset component;
the reset member is disposed between the detection gear and the detection member, the detection member can contact with the detection unit and be detected by the detection unit, in a detection state, the detection gear can receive the driving force transmitted by the driving force receiving member and drive the detection member to rotate through the reset member, and in a reset state, the detection member can drive the reset member to rotate relative to the detection gear.
2. A developing cartridge according to claim 1, wherein said returning member includes an elastic member and a slider, said elastic member being provided between said slider and said detection gear for restricting displacement of said slider and said detection gear in an axial direction of said detection gear, said slider being rotatable relative to said detection gear.
3. A developing cartridge according to claim 2, wherein said slider includes a main body and a hooking portion extending from said main body, an inner peripheral surface of said detection gear is formed as an inter-engaging wheel, and said hooking portion is fittingly coupled with said inter-engaging wheel.
4. A developing cartridge according to claim 3, wherein said hooking portion includes an elastic arm extending from said main body and a barb provided at an end of said elastic arm, said barb being engageable with said internal spur wheel.
5. A developing cartridge according to claim 3, wherein the number of said hooking portions is at least three.
6. A developing cartridge according to claim 2, wherein said detecting member is provided with a stopper post, and said slider is provided with a groove, and said stopper post is movable relative to said groove.
7. A developing cartridge according to claim 1, further comprising an elastic member and a fixing member, the elastic member being provided between the fixing member and the detecting member, urging the detecting member to move toward a side close to the casing.
8. A reset method of a detected unit of a developing box is characterized in that the detected unit of the developing box comprises a detection gear, a detection member and a reset member, the detection member can reach an end position from an initial position to complete detection, the detection member can drive the reset member to rotate relative to the detection gear, the developing box is provided with a limiting part for preventing the detection member from reaching the initial position from the end position, the reset method of the detected unit of the developing box is used for enabling the detection member to reach the initial position from the end position, and the reset method of the detected unit of the developing box comprises the following steps:
step A, applying external force to the detection member to enable the detection member to move to a first position along the axial direction;
and B, rotating the detection member to enable the detection member to drive the reset member to rotate relative to the detection gear, so that the detection member passes over the limiting part from the first position to reach the initial position.
9. The method of resetting the unit to be detected for the developing cartridge according to claim 8, wherein in the step B, the detecting member is in interference fit with the stopper portion and jumps over the stopper portion.
10. A method of resetting a unit to be detected of a developing cartridge according to claim 8, wherein in said step B, said detecting member is rotated in the same direction as the detected rotational direction beyond said stopper portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010814899.6A CN114077174B (en) | 2020-08-13 | 2020-08-13 | Developing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010814899.6A CN114077174B (en) | 2020-08-13 | 2020-08-13 | Developing box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114077174A true CN114077174A (en) | 2022-02-22 |
| CN114077174B CN114077174B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010814899.6A Active CN114077174B (en) | 2020-08-13 | 2020-08-13 | Developing box |
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| Country | Link |
|---|---|
| CN (1) | CN114077174B (en) |
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