CN115202169A - Counting member, developing cartridge and processing cartridge - Google Patents
Counting member, developing cartridge and processing cartridge Download PDFInfo
- Publication number
- CN115202169A CN115202169A CN202210827406.1A CN202210827406A CN115202169A CN 115202169 A CN115202169 A CN 115202169A CN 202210827406 A CN202210827406 A CN 202210827406A CN 115202169 A CN115202169 A CN 115202169A
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- China
- Prior art keywords
- counting
- developing cartridge
- blocking
- driving force
- power receiving
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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
- G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
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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
- G03G15/55—Self-diagnostics; Malfunction or lifetime display
- G03G15/553—Monitoring or warning means for exhaustion or lifetime end of consumables, e.g. indication of insufficient copy sheet quantity for a job
- G03G15/556—Monitoring or warning means for exhaustion or lifetime end of consumables, e.g. indication of insufficient copy sheet quantity for a job for toner consumption, e.g. pixel counting, toner coverage detection or toner density measurement
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
- G03G21/1814—Details of parts of process cartridge, e.g. for charging, transfer, cleaning, developing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The present invention relates to a counting member for being rotatably mounted in a developing cartridge provided with a driving force receiving member, the counting member receiving a driving force of the driving force receiving member to interact with a counted member outside the developing cartridge, the counting member including a cylindrical body, a power receiving part and a non-power receiving part provided in a circumferential direction of the cylindrical body, a toggle protrusion protruding from the cylindrical body, and a blocking part extending in a radial direction of the cylindrical body; in the counting process, the power receiving part is opposite to a driving force output piece arranged in the developing box, and the poking protrusion interacts with a counted piece; when the counting is finished, the non-power receiving part is opposite to the driving force output part, and the blocking part is blocked so that the counting part cannot rotate; after the blocking of the blocking part is released, the counting member is rotated at least one angle under the action of the resetting device combined with the counting member, so that the power receiving part is opposite to the driving force output member again, and therefore, the developing box provided with the counting member can be replenished with the developer for reuse.
Description
The patent application of the invention is a divisional application with an invention name of "developing cartridge and process cartridge with automatic reset" and an application number of 201910049814.7, which is proposed by the applicant to the chinese patent office on 18.01/2019.
Technical Field
The present invention relates to the field of electrophotographic image formation, and more particularly to a developing cartridge and a process cartridge usable in an electrophotographic image forming apparatus, and a counter member located therein.
Background
The developing box is a necessary consumable of office equipment such as a printer or a copier, and is used for accurately grasping the residual quantity of the developing agent in the developing box and further providing a message for a terminal user to replace the developing box in time.
Each part in the existing developing cartridge is generally designed to be still usable after the developer in the developing cartridge is used up, and if the developing cartridge is discarded by an end user at this time, not only the office cost of the end user is increased, but also the current living environment is polluted, so that how to utilize the developing cartridge to the maximum extent needs to be considered.
Disclosure of Invention
The invention provides a counting member, which is used for being rotatably installed in a developing box provided with a driving force receiving member, receives the driving force of the driving force receiving member and interacts with a counted member outside the developing box, and comprises a cylinder, a power receiving part and a non-power receiving part which are arranged in the circumferential direction of the cylinder, a poking protrusion protruding from the cylinder and a blocking part extending along the radial direction of the cylinder; in the counting process, the power receiving part is opposite to a driving force output piece arranged in the developing box, and the poking protrusion interacts with a counted piece; when the counting is finished, the non-power receiving part is opposite to the driving force output part, and the blocking part is blocked so that the counting part cannot rotate; after the blocking of the blocking part is released, the counting piece rotates at least one angle under the action of the resetting device combined with the counting piece, so that the power receiving part is opposite to the driving force output piece again.
Further, the counter member further includes a guided lever protruding from the cylindrical body for being guided by a guide rail provided in the developing cartridge to move along the rotational axis of the counter member.
Further, the stopping part comprises a forced pushing surface and a stopping surface, the forced pushing surface and the stopping surface are arranged in the stopping part, when counting is completed, the stopping surface is stopped, after the stopping of the stopping surface is relieved, the forced pushing surface is subjected to forced pushing force to enable the counting part to rotate by a second angle, and the second angle is smaller than at least one rotating angle of the counting part.
Preferably, the toggle protrusion and the blocking part respectively protrude from the cylinder in opposite directions; the toggle protrusion and the guided rod protrude from the cylinder in opposite directions, respectively.
The present invention also provides a developing cartridge including a casing and the counter member as described above, the counter member and the driving force receiving member being located at longitudinal ends of the casing.
Wherein, resetting means includes the elastic component with the counting member butt, can follow the reset action pole with the crossing direction motion of the axis of rotation of counting member and set up and compel the portion of pushing away on the casing, the elastic component is used for compeling to push away the counting member towards the direction of casing, and when the count was accomplished, the portion of blockking is blockked by the action pole that resets, and the counting member with compel the portion butt of pushing away.
In some embodiments, when the blocking portion is not provided with the urging portion, the counting member is directly returned to the initial position where counting is started from the counting completion state by the combined action of the elastic member and the urging portion.
In other embodiments, when the blocking part is provided with the pushing part, the counting part rotates by a first angle under the combined action of the elastic part and the pushing part and then rotates by a second angle under the action of the reset action rod to return to the initial state of starting counting.
The present invention also provides a process cartridge comprising a drum assembly and the above-described developing cartridge, the developing cartridge being detachably combined with the drum assembly, when the developing cartridge is mounted to the drum assembly, a part of the returning means being pressed by the drum assembly to become blockable against the blocking portion, and when the developing cartridge is taken out from the drum assembly, a part of the returning means releasing the blockage against the blocking portion.
As described above, the counting member according to the present invention may interact with the reset means such that the counting member may be automatically rotated at least one angle from the position where counting is completed to return to the initial position where counting is started, at which time the counting member may be rotated again by receiving the driving force, and thus, the developing cartridge and/or the process cartridge to which the counting member is mounted does not need to be manually reset, thereby simplifying the operation steps of the end user, and at the same time, when the developer in the developing cartridge is consumed, the end user may continue to use the developing cartridge by replenishing a new developer therein.
Drawings
Fig. 1 is a schematic view of the overall structure of a developing cartridge according to the present invention.
Fig. 2 is a schematic view of the overall structure of a drum assembly according to the present invention.
Fig. 3 is a side view of a partial structure of the developing cartridge according to the present invention, viewed in a vertical direction.
Fig. 4A is an overall structural schematic view of the power receiver in the developing cartridge according to the present invention.
Fig. 4B is a plan view as viewed along the rotational axis of the power receiver in the developing cartridge relating to the present invention.
Fig. 5 is an exploded view of the counter assembly in the developing cartridge according to the present invention.
Fig. 6A and 6B are schematic views of the overall structure of the counter member according to the present invention.
Fig. 6C is a plan view of the counter element according to the present invention.
Fig. 7A and 7B are perspective views of a second frame in the developing cartridge according to the present invention.
Fig. 7C is a side view of the second frame in the developing cartridge according to the present invention.
Fig. 8A to 8D are schematic views showing the positions of the respective parts of the counter assembly before the developing cartridge according to the present invention is mounted.
Fig. 9A to 9D are schematic views showing positions of respective parts of the counter assembly before the developing cartridge according to the present invention is mounted and starts to operate.
Fig. 10 is a schematic diagram of a state of the counting assembly according to the present invention at the start of counting.
FIGS. 11A-11D are schematic views of the position of the components of the counting assembly of the present invention after the counting is completed.
Detailed Description
In order to make the description more accurate, the embodiments of the present invention will be described in detail below with reference to the drawings, and first, the respective orientations of the process cartridge according to the present invention are defined with respect to the orientation of the developing cartridge, the longitudinal direction of the developing cartridge 10 is defined as the longitudinal direction X, the width direction of the developing cartridge 10 is defined as the lateral direction Y, and the height direction of the developing cartridge 10 is defined as the vertical direction Z.
[ Structure of developing Cartridge and Process Cartridge ]
Fig. 1 is a schematic view of the overall structure of a developing cartridge according to the present invention; fig. 2 is a schematic view of the overall structure of a drum assembly according to the present invention.
As shown in fig. 1, the developing cartridge 10 is mountable in a mounting direction a, and includes a housing 11, a rotary 12 rotatably mounted in the housing, an end cap 13 at an end of the housing 11, and a power receiving member 20 and a counting assembly 30 mounted on the housing 11, wherein the power receiving member 20 is for receiving a driving force from the outside and transmitting to the counting assembly 30, two longitudinal ends of the housing 11 are a driving end Q and a conductive end E, respectively, the end cap 13 is fixedly mounted at one longitudinal end of the housing 11, the power receiving member 20 and the counting assembly 30 are rotatably mounted at the longitudinal ends of the housing 11, that is, both may be located at the same longitudinal end of the housing 11, or may be located at both longitudinal ends of the housing 11, respectively, however, the counting assembly 30 always operates by receiving the driving force of the power receiving member 20 regardless of the arrangement of the power receiving member 20 and the counting assembly 30; in the embodiment of the invention, the counting assembly 30 and the power receiving element 20 are both located at the driving end Q of the housing 11, and the power receiving element 20 is exposed through the end cover 13.
The power receiving part 20 for receiving a driving force from the outside, rotating about a rotation axis L2, and transmitting the driving force to the rotating member 12 and the counting assembly 30, respectively; said counting assembly 30 is also exposed through the end cap 13 and rotates about a rotation axis L3, the rotation axis L2 being located downstream of the rotation axis L3 in the mounting direction a; further, the casing 11 includes a first frame 111 and a second frame 112 connected to each other, the first frame 111 and the second frame 112 enclose an accommodating chamber for accommodating the developer, and the developer in the accommodating chamber is supplied to the rotary 12 when the developing cartridge 10 is operated.
With regard to the above orientation of the developing cartridge 10/process cartridge, the mounting direction a of the developing cartridge 10 and the lateral direction Y are parallel to each other, and further, it is defined that the direction from the conductive end E of the developing cartridge 10 toward the driving end Q is + X direction, the direction in the lateral direction which is the same direction as the mounting direction a is + Y direction, and the direction from the second frame 112 toward the first frame 111 is + Z direction.
As shown in fig. 2, the drum assembly 50 includes a bottom plate 59, and a first plate 51, a second plate 52, a third plate 53, and a fourth plate 54 extending in the same direction from the periphery of the bottom plate 59, respectively, the first plate 51, the second plate 52, the third plate 53, the fourth plate 54, and the bottom plate 59 enclose and form an accommodating groove 55 for accommodating the developing cartridge 10, the developing cartridge 10 is detachably and fixedly mounted to the accommodating groove 55, the developing cartridge 10 and the drum assembly 50 are combined to form a process cartridge, the process cartridge is detachably mounted to an office equipment such as a printer or a copier, when the developer accommodated in the developer accommodating chamber is consumed, the end user takes the process cartridge out of the equipment, and then takes the developing cartridge 10 out of the accommodating groove 55, so that the developing cartridge 10 can be replenished with new developer or replaced with a new developing cartridge; also, the drum assemblies 50 have the same orientation according to the orientation of the developing cartridge 10 defined above.
[ Power receiving Member ]
Fig. 3 is a side view of a partial structure of a developing cartridge according to the present invention, viewed in a vertical direction; FIG. 4A is a schematic view of the overall configuration of the power receiver in the developer cartridge according to the present invention; fig. 4B is a plan view as viewed along the rotational axis of the power receiver in the developing cartridge relating to the present invention.
As described above, the developing cartridge 10 further includes the power transmission assembly 40 between the power receiving element and the counting assembly 30 in the transverse direction Y, as shown in fig. 3, the power transmission assembly 40 includes the first gear 41 engaged with the power receiving element 20 and the second gear 42 engaged with the counting assembly 30, respectively, the first gear 41 and the second gear 42 are engaged with each other, and when the power receiving element 20 receives the external driving force, the driving force is transmitted to the counting assembly 30 through the first gear 41 and the second gear 42 in sequence, and thus, the second gear 42 can be regarded as the power input member of the counting assembly 30; the counter assembly 30, upon receiving the driving force from the power input member 42, will rotate in the direction indicated by r about the rotational axis L3.
In order to facilitate differentiation of products sold in various countries and regions by manufacturers of office equipment such as printers or copiers, manufacturers of the office equipment such as printers or copiers often design different positions of the process cartridge/developing cartridge to be combined with office equipment such as printers or copiers or different sizes of power output members of the office equipment such as printers or copiers to be combined with the power receiving member 20 in the developing cartridge 10 for the same type of process cartridge.
When a manufacturer achieves the purpose of distinguishing products of different countries or regions by designing the size of the power output element to be different, compatible product design manufacturers can make the power receiving element 20 common to process cartridges of the same type but applicable to different countries or regions by designing the power receiving element 20 to be a common version, that is, by modifying or redesigning the power receiving element 20, because the production and sales chain is short.
As shown in fig. 4A and 4B, the power receiving element 20 according to the present invention can be applied to two types of power output elements, and thus, the developing cartridge 10 to which the power receiving element 20 is attached can also be applied to two types of office equipment such as a printer or a copier.
The power receiving element 20 includes a cylindrical rotating body 21 and a power output portion 22 connected to the rotating body 21, the rotating body 21 having an outer surface 21a and an inner surface 21b, a base body 21c protruding radially inward from the inner surface 21b, and a first coupling portion 21d and a second coupling portion 21e further protruding inward from the base body 21c, the first coupling portion 21d and the second coupling portion 21e being used to couple with different power output members, respectively; an avoiding groove 21h is further provided between the first coupling portion 21d and the second coupling portion 21e in the rotation direction r' of the power receiving element 20, and the avoiding groove 21h enables the power output element coupled with the second coupling portion 21e to smoothly reach a position coupled with the second coupling portion 21 e;
as shown in the figure, in the power receiving element 20, the base body 21c and the first and second coupling portions 21d and 21e are each provided in two sets and are arranged diametrically opposite to each other, and only one set will be described herein; the first coupling portion 21d and the second coupling portion 21e have a first coupling surface 21f and a second coupling surface 21g, respectively, the first coupling surface 21f is located upstream of the first coupling portion 21d, the second coupling surface 21g is located upstream of the second coupling portion 21e in the rotation direction r', and the escape groove 21h is formed to be recessed from a portion between the first coupling surface 21f and the second coupling surface 21g away from the rotation center, so that the escape groove 21h has an escape surface 21j, the escape surface 21j being an arc surface, as shown in fig. 4B, the escape surface 21j being a smooth curve when viewed along the rotation axis L2, and the escape surface 21j having one end connected to the first coupling surface 21f and the other end connected to the second coupling surface 21 g; when the second engaging portion 21d is engaged with the corresponding power output member, the power output member can be smoothly engaged with the second engaging surface 21g through the escape groove 21 h.
The power receiving element 20 further includes a supporting plate 21i coupled to the inner surface 21b, the supporting plate 21i supporting the base 21c, the supporting plate 21i supporting the power output element when the power output element is coupled to the power receiving element 20, and further, a non-smooth surface is provided to a side of the supporting plate 21i facing the base, so that, when the power output element is coupled to the power receiving element 20, the wobbling of the power output element with respect to the power receiving element 20 is effectively suppressed, and the power receiving element 20 can more stably receive the driving force output from the power output element.
Further, in fig. 4B, a straight line L is drawn through the rotation center, the straight line L also passes through the middle points of two arcs located between the first combining portion 21d and the second combining portion 21e along the rotation direction r', and the first combining surface 21f and the second combining surface 21g respectively form angles α and β with respect to the straight line L, and in the embodiment of the present invention, the following are satisfied: alpha is less than beta, so that the second joint surface 21g can ensure a larger contact surface with the corresponding power output member, the contact between the two is more stable, and the phenomenon of slipping cannot occur.
[ counting Assembly ]
Fig. 5 is an exploded view of a counter assembly in the developing cartridge according to the present invention; FIGS. 6A and 6B are schematic views showing the overall structure of a counting member according to the present invention; FIG. 6C is a top view of a counter according to the present invention; fig. 7A and 7B are perspective views of a second frame in the developing cartridge according to the present invention; fig. 7C is a side view of the second frame in the developing cartridge relating to the present invention.
As shown in fig. 5, in order to make the description clearer, only the counting assembly 30 and the housing 11 are shown in the drawing, the counting assembly 30 includes a counting member 31 and a reset device combined with the counting member 31, the reset device is used for restoring the counting member 31 to an initial position for starting counting after the counting member 31 finishes counting, and includes a reset action rod 33, a first elastic member 32, a second elastic member 34 and an urging part 164, the first elastic member 32 is installed between the counting member 31 and the end cover 13 and is used for urging the counting member 31 to the housing 11, the second elastic member 34 is combined with the reset action rod 33, so that the reset action rod 33 can be extended and retracted, and the reset action rod 33 is extended and retracted along the height direction Z of the developing cartridge 10, and the urging part 164 is inclined relative to the rotation axis L3 and is used for urging the counting member 31 finished counting to the initial position for starting counting under the urging action of the first elastic member 32; when the assembly of the developing cartridge 10 is completed, the reset operation lever 33 protrudes from the housing 11 in a direction intersecting the rotation axis L3 so that a straight line of the length direction of the reset operation lever 33 intersects the rotation axis L3, preferably, the straight line of the length direction of the reset operation lever 33 is orthogonal to the rotation axis L3 so that a straight line of the expansion and contraction direction of the reset operation lever 33 is orthogonal to the rotation axis L3, and more preferably, the reset operation lever 33 protrudes in the-Z direction; further, the + Z direction of the developing cartridge is set to be upward, and the-Z direction is set to be downward, so that the return action lever 33 protrudes downward of the developing cartridge, and the return action lever 33 extends and contracts in the up-down direction of the developing cartridge.
In the process of mounting the developing cartridge 10 to the accommodating groove 55, the return action lever 33 is pressed by the bottom plate 59 of the drum assembly 50 to retract in the + Z direction (upward), and when the developing cartridge 10 is completely fixedly mounted to the accommodating groove 55, the return action lever 33 is always pressed by the bottom plate 59, and the second elastic member 34 is compressively deformed; when the developing cartridge 10 is taken out of the accommodating groove 55, the bottom plate 59 no longer presses the return-action lever 33, and the return-action lever 33 projects in the-Z direction (downward) by the elastic return force of the second elastic member 34.
The second frame 112 of the casing 11 has the end face 14, the counting assembly 30 is mounted on the end face 14, as shown in the figure, the developing cartridge 10 further includes a support column 15, a guide rail 16, and a support 17 provided on the casing 11 (the end face 14); the counting member 31 is rotatably mounted on the support column 15; the reset action lever 33 is supported by the support member 17, the second elastic member 34 is located between the support member 17 and the reset action lever 33, and in order to ensure smooth movement of the reset action lever 33, the developing cartridge 10 further includes an auxiliary support member 18 provided on the casing 11, the reset action lever 33 being supported by both the support member 17 and the auxiliary support member 18; when the counting assembly 30 is operated, the counting member 31 is guided by the guide track 16 to gradually move away from the housing 11, the first elastic member 32 is compressed, and after counting is completed, the counting member 31 moves towards the direction approaching the housing 11 under the urging action of the first elastic member 32; preferably, the first elastic member 32 and the second elastic member 34 are both compression springs.
As shown in fig. 6A, 6B and 6C, the counting member 31 includes a cylindrical body 31a, a power receiving portion 31e and a non-power receiving portion 31f provided in a circumferential direction of the cylindrical body 31a, a toggle protrusion 31g and a guided rod 31h protruding from the cylindrical body 31a in opposite directions, respectively, the cylindrical body 31a having a top plate 31B, a bottom surface 31C and an outer surface 31d, the toggle protrusion 31g protruding from the top plate 31B, the guided rod 31h protruding beyond the bottom surface 31C for coupling with the guide rail 16; the power receiving portion 31e and the non-power receiving portion 31f are both located on the outer surface 31d, and preferably, the power receiving portion 31e is a tooth provided on the outer surface 31d, so that the power receiving portion 31e can also be regarded as a toothed portion on the counting member 31, and the non-power receiving portion 31f is a non-toothed portion on the counting member 31, when the toothed portion 31e is opposite to the second gear 42 as a power input member, the counting member 31 can receive the driving force of the second gear 42 to rotate around the rotation axis L3, and when the non-toothed portion 31f is opposite to the second gear 42, the power transmission between the counting member 31 and the second gear 42 is interrupted, and the counting member 31 is no longer driven to rotate.
Further, the counter 31 further includes a mounting post 31k projecting from the top plate 31b in the same direction as the guided rod 31h, the mounting post 31k being formed with a mounting hole allowing the support post 15 to pass therethrough, as shown in fig. 6C, and an annular groove 31j is formed between the cylindrical body 31a and the mounting post 31k when viewed along the rotation axis L3; furthermore, the counting member 31 further includes a stopper 31i protruding from the cylinder 31a in the same direction as the guided rod 31h, and the reset action rod 33 contacts the stopper 31i to restrict the rotation of the counting member 31 after the counting is completed; when the developing cartridge 10 is taken out from the accommodating groove 55, the reset action lever 33 no longer restricts the counting member 31, the counting member 31 is forced to rotate by a first angle by the cooperation of the urging portion 164 and the first elastic member 32, when the developing cartridge 10 is mounted to the accommodating groove 55 again, the reset action lever 33 applies an action force to the counting member 31 to force the counting member 31 to rotate by a certain angle around the rotation axis thereof, specifically, the reset action lever 33 urges the blocking portion 31i to cause the counting member 31 to continue to rotate by a second angle back to the initial position where counting is started.
As shown in fig. 6B and 6C, the stopper 31i includes the urging surface 31i1 and the stopper surface 31i2 provided therein, the reset operation lever 33 is opposed to the stopper surface 31i2 after the counting member 31 finishes counting, and the reset operation lever 33 is opposed to the urging surface 31i1 when the developing cartridge 10 is mounted to the housing groove 55 again. The second angle is an angle θ 2 corresponding to the urging surface 31i1, and an angle θ corresponding to the toothless portion 31 f.
As shown in fig. 7A, 7B and 7C, the support member 17 and the auxiliary support member 18 are respectively provided with a first support groove 171 and a second support groove 181 for matching with the outer surface of the return action lever 33, and the return action lever 33 is cylindrical, so that the first support groove 171 and the second support groove 181 are both arc-shaped; the guide rail 16 includes a first portion 161, a second portion 162, and a third portion 163 connected in this order, wherein the first portion 161 is closest to the housing 11, the second portion 162 is gradually distant from the housing 11, and the third portion 163 is farthest from the housing 11, and the first portion 161, the second portion 162, and the third portion 163 are connected to form a circle when viewed along the rotation axis L3; in the embodiment of the present invention, the urging portion 164 is an inclined surface inclined with respect to the rotation axis L3, and the urging portion 164 may be provided directly on the housing 11 or may be provided on the guide rail 16, and preferably, as shown in fig. 7A, the urging portion 164 is provided between the third portion 163 and the first portion 161 of the guide rail 16 in the circumferential direction of the guide rail 16.
As shown in fig. 7C, when viewed along the rotation axis L3, the angle corresponding to the pushing portion 164 is θ 1, and the first angle of rotation of the counting member 31 is the angle θ 1 corresponding to the pushing portion 164, which satisfies θ ≦ (θ 1+ θ 2).
The angle θ 1 corresponding to the urging portion 164 and the angle θ corresponding to the toothless portion 31f further have the following relationship: when θ is less than or equal to θ 1, that is, the first angle θ 1 of the counting member 31 rotated by the urging portion 164 exceeds the angle θ corresponding to the toothless portion 31f, the counting member 31 can directly return to the initial state of starting counting, and at this time, the urging surface 31i1 on the blocking portion 31i becomes unnecessary; when theta is larger than theta 1, the first angle theta 1 of the counting member 31 rotated by the urging part 164 does not exceed the angle theta corresponding to the non-toothed part 31f, the toothed part 31e is not yet engaged with the second gear 42, and the counting member 31 is required to be rotated by a second angle theta 2 under the action of the reset action rod 33, and finally the toothed part 31e of the counting member 31 is engaged with the second gear 42, i.e. theta is smaller than or equal to (theta 1+ theta 2).
[ counting and resetting Process of counting Assembly ]
As described above, the urging surface 31i1 becomes unnecessary under the condition that the urging portion 164 satisfies a certain condition, however, in order that the entire structure of the counting assembly 30 does not become complicated and the movement of the counting member 31 is more easily controlled, it is preferable that the blocking portion 31i is provided with the urging surface 31i1, which will be described below in the case where the urging surface 31i1 is provided; when the urging surface 31i1 is not provided, as long as the urging portion 164 satisfies the above-described condition, the counting process and the resetting process of the counting member 31 are the same as those described below.
Fig. 8A to 8D are schematic views showing the positions of the respective parts of the counter assembly before the developing cartridge according to the present invention is mounted. For ease of description, only the components associated with the counting assembly 30 are shown.
When the developing cartridge 10 is in the unmounted state, that is, when the developing cartridge 10 is not mounted to the housing groove 55, as shown in the drawing, the toothed portion 31e of the counter 31 is about to mesh with the second gear 42, the non-toothed portion 31f is opposite to the second gear 42, the counter 31 does not rotate with the rotation of the second gear 42, and the guided lever 31h contacts the first portion 161 of the guide rail 16; the reset action lever 33 is in an extended state; as shown in fig. 8C and 8D, the return action lever 33 is opposed to the urging surface 31i1 in the vertical direction Z, and the return action lever 33 at least partially overlaps the urging surface 31i1 when viewed in the vertical direction Z; since the counting member 31 cannot perform the counting operation, the state of the counting member 31 at this time is referred to as a pre-reset state.
Fig. 9A to 9D are schematic views showing the positions of the respective parts of the counter assembly before the developing cartridge according to the present invention is mounted and starts to operate.
When the developing cartridge 10 is mounted to the housing groove 55, the reset action lever 33 is urged by the bottom plate 59 of the drum assembly 50, the reset action lever 33 is gradually retracted in the + Z direction, the second spring 34 is gradually compressed, as described above, since the reset action lever 33 is opposed to the urging surface 31i1, the gradually retracted reset action lever 33 will urge the urging surface 31i1 to apply urging force, and in the embodiment of the present invention, the urging surface 31i1 is inclined with respect to the line in which the expanding and contracting direction of the reset action lever 33 is located, and therefore, when the reset action lever 33 applies urging force to the urging surface 31i1, the counter 31 will be driven to rotate in the direction indicated by r about the rotation axis L3 by the second angle θ 2, as shown in fig. 9A and 9B, the toothed portion 31e of the counter 31 starts to engage with the second gear 42, and as shown in fig. 9C and 9D, the reset action lever 33 and the urging surface 31i1 no longer overlap.
FIG. 10 is a diagram illustrating the counting assembly according to the present invention in a starting state; FIGS. 11A-11D are schematic views of the position of the components of the counting assembly of the present invention after counting is completed.
When the process cartridge formed after the developing cartridge 10 is combined with the drum assembly 50 is mounted to the electrophotographic image forming apparatus, the power receiving member 20 can be combined with the power output member provided in the apparatus, and the power receiving member 20 is driven to rotate about the rotation axis L2, and as the power receiving member 20 rotates, the driving force can be transmitted to the counter member 31 through the power transmission assembly 40, and thus, the counter member 31 starts to rotate about the rotation axis L3 in the direction indicated by r.
The position of the stopper 31i satisfies: as shown in fig. 6C, the distance d between the point of the stopper 31i closest to the center of the rotation is larger than the maximum radius of the guide rail 16 (as shown in fig. 7C), and thus, when the counter 31 is supported by the support member 15 to rotate about the rotation axis L3, interference between the stopper 31i and the guide rail 16 does not occur.
As shown in fig. 10, the counting member 31 returns to the initial position of starting counting, which can be described as: the guided rod 31h reaches the first position at the adjacent of the first portion 161 and the second portion 162 of the guide rail 16; or the position of the counter 31 when the toothed portion 31e of the counter 31 starts to engage with the second gear 42 as shown in fig. 9A to 9D, at which the guided rod 31h is located at the second position that has not reached the vicinity of the first portion 161 and the second portion 162 of the guide rail 16; or the counting member 31h is located at any one position between the first position and the second position; that is, the initial position of the counting member 31 may be any one of the above three cases, and when the counting member 31 is located at the initial position, the guide rod 31h is located at a position contacting the first portion 161 of the guide rail 16.
As the counting member 31 rotates in the direction indicated by r about the rotation axis L, the guided rod 31h starts to gradually move away from the housing 11 along the second portion 162 of the guide track 16, the toggle protrusion 31g also gradually moves away from the housing 11, the first spring 32 between the counting member 31 and the housing 13 is gradually compressed, when the guided rod 31h reaches the third portion 163 of the guide track 16, the counting member 31 is farthest away from the housing 11, the toggle protrusion 31g starts to toggle the counting member, and the first spring 32 is not compressed any more; when the counting member 31 finishes counting, the guided rod 31h is out of contact with the third section 163 of the guide rail 16 and moves in a direction approaching the housing 11 under the elastic restoring force of the first spring 32, as shown in fig. 11A, the guided rod 31h reaches a position contacting the urging portion 164 from the third section 163, but the elastic restoring force of the first spring 32 is not released, as shown in fig. 11B, the toothless portion 31f of the counting member 31 opposes the second gear 42, the counting member 31 stops rotating by no longer receiving the driving force of the second gear 42, and, as shown in fig. 11C and 11D, the blocking surface 31i2 of the blocking portion 31i is adjacent to the return action rod 33, and since the urging portion 164 is inclined with respect to the rotation axis L3, the counting member 31 has a tendency to continue to approach the housing 11 and rotate in a direction indicated by r around the rotation axis under the remaining elastic restoring force of the first spring 32, but the blocking portion 31i on the counting member 31 is returned to the action rod 33, the counting member 31 continues to be rotated, and thus the counting member 31 is kept in a tendency to be away from the counting end of the counting member 31h, i.e., the counting member 31h, and the end of the counting member 31h is kept away from the position, which is able to be in a state of being kept away from the second section 31h, and is kept in contact with the second section 31h, as shown in a state of the second spring 33.
The counting process of the counting assembly 30 is described above, and the resetting process of the counting assembly 30 will be described next.
When the developing cartridge 10 is taken out of the accommodating groove 55, the return action lever 33 is no longer pressed by the bottom plate 59 of the drum assembly 50, and the return action lever 33 will move in the-Z direction by the elastic return force of the second spring 34, returning from the retracted state to the extended state shown in fig. 8B and 8D.
As described above, after the counting member 31 finishes counting, the first spring 32 still has partial elastic restoring force not yet released, the guided rod 31h is located at a position in contact with the end of the urging portion 164 away from the housing 11, when the restoring action rod 33 returns from the retracted state to the extended state, the restoring action rod 33 will no longer contact with the blocking portion 31i, that is, the blocking portion 31i is no longer blocked, the counting member 31 will rotate around the rotation axis L3 in the direction indicated by r under the combined action of the elastic restoring force of the first spring 32 and the urging portion 164 until the guided rod 31h reaches the end of the urging portion 164 close to the housing 11, the counting member 31 reaches the pre-reset state from the counting-finished state, that is, the guided rod 31h contacts the first portion 161 of the guide rail 16, as shown in fig. 8A and 8B, and the toothed portion 31e of the counting member 31 will be about to engage with the second gear 42.
When the developing cartridge 10 is mounted to the housing groove 55 again, the reset operation lever 33 is pressed by the bottom plate 59 of the drum assembly 50 again, the reset operation lever 33 reaches the retracted state shown in fig. 9B and 9D, and the counting member 31 returns to the initial position where counting is started.
As can be seen from the above description, the counting member 31 is divided into two processes from the completion of counting to the initial position where counting is started, namely, the process of taking out the developing cartridge 10 from the accommodating groove 55 and the process of remounting the developing cartridge 10 to the accommodating groove 55 again, specifically: during the process of taking out the developing cartridge 10 from the accommodating groove 55, the counting member 31 reaches the pre-reset state from the state in which the counting is completed, and the counting member 31 rotates in the direction indicated by r by the first angle θ 1 around the rotation axis L3 under the combined action of the elastic reset force of the first spring 32 and the urging portion 164, at this time, the counting member 31 does not mesh with the second gear 42, and also does not rotate with the rotation of the second gear 42; in the process of the developer cartridge 10 being mounted to the housing groove 55 again, the counter member 31 is brought from the pre-reset state to the reset state, and the counter member is rotated by the second angle θ 2 in the direction indicated by r about the rotation axis L3 by the reset operation lever 33, at which time the counter member 31 is meshed with the second gear 42 so as to be rotatable in accordance with the rotation of the second gear 42.
As described above, when the urging portion 164 satisfies the angle θ 1 ≧ θ corresponding thereto, the urging surface 31i1 is no longer necessarily provided, at which time, the counting member 31 is returned from the counting completion to the initial position at which counting is started only by one process, and in the process of taking out the developing cartridge 10 from the accommodating groove 55, the returning action lever 33 no longer restricts the counting member 31 by the blocking portion 31i, and the counting member 31 is rotated by the angle θ 1 in the direction indicated by r about the rotation axis L3 under the combined action of the elastic returning force of the first spring 32 and the urging portion 164, so that the counting member 31 directly reaches the above-described returning state, that is, the toothed portion 31e on the counting member 31 is engaged with the second gear 42, and is contacted by the guide lever 31h with the first portion 161 of the guide rail 16, and the counting member 31 can be rotated with the rotation of the second gear 42.
The embodiment in which the reset operation lever 33 is pressed by the bottom plate 59 of the drum assembly 50 when the developing cartridge 10 is mounted to the housing groove 55 has been described above, however, the reset operation lever 33 may also be pressed by other portions of the drum assembly 50, for example, the reset operation lever 33 is pressed by at least one of the first plate 51, the second plate 52, the third plate 53, and the fourth plate 54 of the drum assembly 50, as long as it can be ensured that the reset operation lever 33 can receive a force to force the retraction thereof when the developing cartridge 10 is mounted.
According to the developing cartridge 10 and the processing cartridge provided by the invention, when the developer in the developing cartridge 10 is taken out after being consumed, a terminal user adds new development, and after the developing cartridge 10 is installed in office equipment such as a printer or a copier again, the counting assembly 30 in the developing cartridge 10 can be automatically reset, the counting assembly 30 does not need to be manually reset by the terminal user, the use experience of the terminal user is improved, the terminal user is more willing to achieve the purpose of reusing the developing cartridge 10 by supplementing the new developer into the developing cartridge 10, and therefore, the purpose of utilizing the developing cartridge 10 to the maximum extent is achieved.
Claims (10)
1. A counting member for being rotatably mounted in the developing cartridge provided with the driving force receiving member, the counting member receiving the driving force of the driving force receiving member to interact with a counted member outside the developing cartridge,
the counting part comprises a cylinder, a power receiving part and a non-power receiving part which are arranged in the circumferential direction of the cylinder, a poking protrusion protruding from the cylinder and a blocking part extending along the radial direction of the cylinder;
in the counting process, the power receiving part is opposite to a driving force output piece arranged in the developing box, and the poking protrusion interacts with a counted piece;
when the counting is finished, the non-power receiving part is opposite to the driving force output part, and the blocking part is blocked so that the counting part cannot rotate;
after the blocking of the blocking part is released, the counting part rotates at least one angle under the action of a resetting device mutually combined with the counting part, so that the power receiving part is opposite to the driving force output part again.
2. The counter according to claim 1, wherein the counter further comprises a guided rod protruding from the cylinder for being guided by a guide rail provided in the developing cartridge to move along a rotational axis of the counter.
3. The counting member according to claim 1, wherein the blocking portion includes an urging surface and a blocking surface provided therein, the blocking surface being blocked when counting is completed, the urging surface being urged to rotate the counting member by a second angle smaller than at least one angle of rotation of the counting member after the blocking of the blocking surface is released.
4. A counter element according to claim 1 or 2 or 3, wherein the dial projection and the blocking portion each project in opposite directions from the cylindrical body.
5. The counting element of claim 2, wherein the toggle protrusion and the guided rod protrude in opposite directions from the cylindrical body, respectively.
6. A developing cartridge, characterized in that the developing cartridge comprises a casing and the counter member according to any one of claims 1 to 5, the counter member and the driving force receiving member being located at longitudinal ends of the casing.
7. A developing cartridge according to claim 6, wherein the reset means includes an elastic member abutting the counting member, a reset action lever movable in a direction intersecting with a rotational axis of the counting member, and an urging portion provided on the casing, the elastic member being for urging the counting member toward the casing, the blocking portion being blocked by the reset action lever when counting is completed, the counting member abutting the urging portion.
8. A developing cartridge according to claim 7, wherein when the blocking portion is not provided with the urging portion, the counting member is returned directly to the initial position at which counting is started from the counting completion state by the cooperation of the elastic member and the urging portion.
9. A developing cartridge according to claim 7, wherein when the blocking portion is provided with the urging portion, the counting member is rotated by a first angle under the combined action of the elastic member and the urging portion and then rotated by a second angle under the action of the returning action lever to return to an initial state where counting is started.
10. A process cartridge, characterized in that it comprises a drum assembly and a developing cartridge according to any one of claims 6 to 9, the developing cartridge being detachably incorporated with the drum assembly, a part of the returning means being pressed by the drum assembly to become blockable against the blocking portion when the developing cartridge is mounted to the drum assembly, and a part of the returning means being released from the blockage against the blocking portion when the developing cartridge is removed from the drum assembly.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811505614X | 2018-12-10 | ||
| CN201811505614 | 2018-12-10 | ||
| CN201910049814.7A CN109459922B (en) | 2018-12-10 | 2019-01-18 | Automatic reset developing cartridge and process cartridge |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910049814.7A Division CN109459922B (en) | 2018-12-10 | 2019-01-18 | Automatic reset developing cartridge and process cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115202169A true CN115202169A (en) | 2022-10-18 |
Family
ID=65616301
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910049814.7A Active CN109459922B (en) | 2018-12-10 | 2019-01-18 | Automatic reset developing cartridge and process cartridge |
| CN202210825881.5A Pending CN115061343A (en) | 2018-12-10 | 2019-01-18 | Developing cartridge and process cartridge |
| CN202210827406.1A Pending CN115202169A (en) | 2018-12-10 | 2019-01-18 | Counting member, developing cartridge and processing cartridge |
| CN202210825879.8A Pending CN115061342A (en) | 2018-12-10 | 2019-01-18 | Developing cartridge and process cartridge |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910049814.7A Active CN109459922B (en) | 2018-12-10 | 2019-01-18 | Automatic reset developing cartridge and process cartridge |
| CN202210825881.5A Pending CN115061343A (en) | 2018-12-10 | 2019-01-18 | Developing cartridge and process cartridge |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210825879.8A Pending CN115061342A (en) | 2018-12-10 | 2019-01-18 | Developing cartridge and process cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN109459922B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111352322B (en) * | 2019-04-15 | 2022-10-14 | 珠海市源呈数码科技有限公司 | Developing box capable of resetting automatically |
| WO2020211469A1 (en) * | 2019-04-15 | 2020-10-22 | 珠海市源呈数码科技有限公司 | Automatically resettable developing cartridge |
| CN113467207A (en) * | 2021-08-06 | 2021-10-01 | 珠海市源呈数码科技有限公司 | Developing box |
| WO2023056919A1 (en) * | 2021-10-08 | 2023-04-13 | 珠海市拓佳科技有限公司 | Counting assembly and developing cartridge |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2191149B (en) * | 1986-05-16 | 1990-12-19 | Sharp Kk | Counter reset mechanism. |
| JPH04198951A (en) * | 1990-11-28 | 1992-07-20 | Sharp Corp | Counter reset device for image forming device |
| KR19980012840U (en) * | 1996-08-29 | 1998-06-05 | 구자홍 | Cartridge reset device for electrophotographic printer |
| JP4498407B2 (en) * | 2006-12-22 | 2010-07-07 | キヤノン株式会社 | Process cartridge, electrophotographic image forming apparatus, and electrophotographic photosensitive drum unit |
| CN101625537B (en) * | 2009-08-05 | 2013-03-13 | 珠海赛纳打印科技股份有限公司 | Developing box with counting mechanism |
| JP3167014U (en) * | 2011-01-20 | 2011-03-31 | ブラザー工業株式会社 | Developer cartridge |
| JP5182402B2 (en) * | 2011-08-31 | 2013-04-17 | ブラザー工業株式会社 | cartridge |
| CN203365927U (en) * | 2013-07-02 | 2013-12-25 | 珠海赛纳打印科技股份有限公司 | Developing box |
| CN207096690U (en) * | 2017-07-27 | 2018-03-13 | 中山市泰威影印科技有限公司 | Reducible Delevoping cartridge |
| CN108681220A (en) * | 2018-07-18 | 2018-10-19 | 珠海精专科技有限公司 | A kind of cartridge for the clearing that automatically resets |
| CN209446974U (en) * | 2018-12-10 | 2019-09-27 | 中山市鸿芃泰塑胶模具科技有限公司 | The Delevoping cartridge and handle box to automatically reset |
-
2019
- 2019-01-18 CN CN201910049814.7A patent/CN109459922B/en active Active
- 2019-01-18 CN CN202210825881.5A patent/CN115061343A/en active Pending
- 2019-01-18 CN CN202210827406.1A patent/CN115202169A/en active Pending
- 2019-01-18 CN CN202210825879.8A patent/CN115061342A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN115061343A (en) | 2022-09-16 |
| CN109459922B (en) | 2023-08-29 |
| CN115061342A (en) | 2022-09-16 |
| CN109459922A (en) | 2019-03-12 |
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