CN113946109A - Developing box - Google Patents
Developing box Download PDFInfo
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- CN113946109A CN113946109A CN202111389819.8A CN202111389819A CN113946109A CN 113946109 A CN113946109 A CN 113946109A CN 202111389819 A CN202111389819 A CN 202111389819A CN 113946109 A CN113946109 A CN 113946109A
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- Prior art keywords
- counting
- actuating
- protrusion
- guide rail
- printer
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- 230000007246 mechanism Effects 0.000 claims abstract description 70
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0863—Arrangements for preparing, mixing, supplying or dispensing developer provided with identifying means or means for storing process- or use parameters, e.g. an electronic memory
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
The invention relates to a developing box which comprises a shell, an end cover, a transmission assembly and a counting mechanism, wherein the transmission assembly and the counting mechanism are arranged at the end part of the developing box, and the transmission assembly receives driving force from a printer and drives the counting mechanism to work. The counting mechanism comprises a counting moving part, a guide rail, an elastic piece and an actuating device, and a trigger rod for touching the detection mechanism of the printer is arranged on the counting moving part; the guide track is used for controlling the counting movable piece to move along a preset path under the condition that the counting movable piece is stressed; the elastic element is used for applying elastic force to the counting movable element; the actuating device is used for forcing the counting movable piece to move along the triangular contour of the guide track. A first limiting step used for limiting the counting moving part at an initial position is arranged in the guide track; the end cap has an opening through which at least a portion of the counting mover is exposed to the outside in the final position.
Description
Technical Field
The present invention relates to a developing cartridge. And in particular, to a developing cartridge detachably mountable to a laser printer.
Background
The developing cartridge is an indispensable printing consumable in a laser printer. After the laser printer works for a period of time, the carbon powder filled in the developing box is used up, and at this time, a new developing box needs to be replaced.
For some types of developing cartridges, manufacturers often provide a counting mechanism on the developing cartridge, which can be used in cooperation with a detection device on the printer to indicate to the printer whether the developing cartridge is a new developing cartridge, and then to restart calculating the service life of the developing cartridge.
Chinese patent application No. 2021109030712, filed by the applicant, discloses a developing cartridge including a counting mechanism further including a counting moving member, a guide rail, an elastic member, an actuating device, and a position restricting mechanism. The counting moving part is provided with a trigger rod used for touching a detection mechanism of the printer, the guide track is used for controlling the counting moving part to move according to a preset path under the condition that the counting moving part is stressed, the elastic piece is arranged between the shell of the developing box and the counting moving part to apply elastic force to the counting moving part, the actuating device is used for forcing the counting moving part to sequentially move along the preset path, and the limiting mechanism is used for keeping the counting moving part at a final position after the counting moving part moves to the final position. When the counting moving part moves, the trigger rod can be driven to horizontally move to contact or separate from the detection mechanism of the printer, so that the counting function is realized.
When the counting movable piece of the developing box moves in the guide track, the moving path of the counting movable piece forms a closed triangle, namely, the guide projection of the counting movable piece forms the closed triangle when moving from the initial position (factory position) to the final position (locking position). The counting mechanism of the developing box is particularly suitable for detecting the normally open state of the mechanism, namely, the counting moving part touches the detecting mechanism when the developing box is installed, the middle state after the counting moving part moves does not touch the detecting mechanism, and the counting moving part always touches the detecting mechanism after moving to the final position (locking position). Of course, the method can also be used for detecting the normally closed state of the mechanism, namely, the counting moving part does not touch the detecting mechanism when the developing cartridge is installed, the middle state after the movement touches the detecting mechanism, and the counting moving part does not touch the detecting mechanism all the time after moving to the final position (locking position).
For the developing box with the detection mechanism in the normally closed state, the limiting mechanism of the developing box is complex in structure and high in processing and manufacturing difficulty.
Disclosure of Invention
The invention aims to provide a developing box which has a simpler structure and lower processing and manufacturing difficulty under the condition of meeting the detection time sequence requirement of a printer.
In order to achieve the purpose, the developing box comprises a shell, an end cover, a transmission assembly and a counting mechanism, wherein the transmission assembly and the counting mechanism are arranged at the end part of the developing box, and the transmission assembly receives driving force from a printer and drives the counting mechanism to work. The counting mechanism comprises a counting moving part, a guide rail, an elastic part and an actuating device, a trigger rod for touching a detection mechanism of the printer is arranged on the counting moving part, and the counting moving part can drive the trigger rod to horizontally move to contact or separate from the detection mechanism of the printer when moving, so that the counting function is realized; the guide track is used for controlling the counting movable piece to move from an initial position to a final position through an intermediate position under the condition that the counting movable piece is stressed; one end of the elastic piece is installed on the end cover of the developing box, and the other end of the elastic piece is installed on the counting movable piece so as to apply elastic force to the counting movable piece; the actuating device is used for forcing the counting movable piece to move along the triangular contour of the guide track. The counting moving piece is arranged on the guide rail, wherein a first limiting step is arranged in the guide rail and used for limiting the counting moving piece at an initial position; the end cap has an opening through which at least a portion of the counting movable member is exposed to the outside in the final position, so that the counting movable member can be manually restored from the final position to the initial position.
The developing box can be used for detecting a normally closed printer, a moving path of a guide protrusion of a counting mechanism in a guide rail does not need to form a closed loop when the printer works, so that a limiting mechanism in the conventional developing box can be omitted, a user can reset the counting mechanism by manually shifting a counting moving part, the structure and the working process of the counting mechanism are simpler, and the processing and manufacturing cost of the developing box is lower.
In a preferred embodiment, the actuating means comprises a first actuating protrusion for forcing the counting movable member to rotate and a second actuating protrusion for forcing the counting movable member to move, the first and second actuating protrusions being mounted on an end face of the agitator gear, the first actuating protrusion contacting the counting movable member prior to the second actuating protrusion when the agitator gear rotates. The first actuating protrusion and the second actuating protrusion are arranged on the end face of the stirring frame gear, the power of the stirring frame gear can be directly utilized, and under the condition that the space of the end face of the developing box is limited, the structure of the actuating device is simplified, and the space occupied by the actuating device is reduced.
In one embodiment, an arc-shaped pressure-receiving surface is arranged on the counting moving part, and the first actuating protrusion is in contact with the arc-shaped pressure-receiving surface when being driven by the stirring frame gear to move, so that the counting moving part is driven to rotate.
In one embodiment, the second actuating protrusion is closer to the center of the agitator gear than the first actuating protrusion, such that the first actuating protrusion may contact the counter movable member before the second actuating protrusion.
In one embodiment, the actuating device further comprises a third actuating protrusion mounted on an end face of the agitator frame gear, the second actuating protrusion contacting the counter-moving member prior to the third actuating protrusion when the agitator frame gear rotates. The third actuation protrusion is closer to the center of the agitator frame gear relative to the first actuation protrusion and farther from the center of the agitator frame gear relative to the second actuation protrusion. The second actuating protrusion has a fan shape in a sectional shape parallel to the side wall. Through the structural design, after the trigger rod of the counting moving part touches the detection mechanism of the printer, the trigger rod can be continuously contacted with the detection mechanism for a certain time, and then the trigger rod can be separated from the detection mechanism of the printer, so that the special requirements of the printer of certain specific models on detection time sequence control can be met.
In one embodiment, the counter movable element is provided with a guide projection which projects into the guide track to control the movement of the counter movable element along the contour of the guide track.
In one embodiment, a second limit step is arranged in the guide track, and the second limit step is used for limiting the counting movable piece to return to the initial position when moving.
In one embodiment, the guide track has a triangular profile.
Drawings
Fig. 1 is a perspective view of the developing cartridge of the present invention according to an embodiment.
Fig. 2 is a perspective view of the developing cartridge shown in fig. 1 with the end cap removed.
Fig. 3a and 3b are perspective views of the end cap with the counting movement mounted thereon.
Fig. 4 is a partial exploded view of the developing cartridge of the present invention.
Fig. 5a and 5b are a front view and a perspective view, respectively, of an end cap of the developing cartridge shown in fig. 1.
Fig. 6a and 6b are perspective views of the counting movable member of the developing cartridge of the present invention, respectively.
Fig. 7 is a partially enlarged view of a guide rail of the developing cartridge of the present invention.
Fig. 8a and 8b are perspective views of the stirring frame gear of the developing cartridge of the present invention, respectively.
Fig. 9a is a perspective view showing the relationship between the counter movable member and the gear of the agitator frame in the developing cartridge of the present invention.
Fig. 9b is a schematic view showing an initial position of the guide projection in the guide rail in the developing cartridge of the present invention shown in fig. 9 a.
Fig. 9c is a schematic view of the first actuating projection coming into contact with the actuating means in the developing cartridge of the present invention.
Fig. 10a is a perspective view showing another fitting relationship of the counting movable member and the agitator frame gear in the developing cartridge according to the present invention.
Fig. 10b is a schematic view showing an intermediate position of the guide projection in the guide rail in the developing cartridge of the present invention shown in fig. 10 a.
Fig. 11a is a perspective view showing another fitting relationship of the counting movable member and the agitator frame gear in the developing cartridge of the present invention.
Fig. 11b is a schematic view showing another intermediate position of the guide projection in the guide rail in the developing cartridge of the present invention shown in fig. 11 a.
Fig. 12 is a schematic view showing a change in position of the trigger lever along the second through hole in the developing cartridge of the present invention.
Fig. 13a is a perspective view showing another fitting relationship of the counting movable member and the agitator frame gear in the developing cartridge of the present invention.
Fig. 13b is a schematic view showing the final position of the guide projection in the guide rail in the developing cartridge of the present invention shown in fig. 13 a.
Fig. 14 is another schematic view showing a change in position of the trigger lever moving along the second through hole in the developing cartridge of the present invention.
Detailed Description
The structure and other aspects of the process cartridge of the present invention will be described in further detail hereinafter with reference to the accompanying drawings by way of specific embodiments.
As shown in fig. 1 and 2, in one embodiment, the developing cartridge of the present invention comprises a housing 1, a transmission assembly 2, a rotatable member 3 and an end cap 4, wherein the housing 1 comprises side walls 11 at both sides and a cavity formed therein for accommodating the rotatable member 3 or toner (developer). The rotatable member 3 includes, for example, a developing roller, a powder feeding roller, an agitating frame, or the like, and both ends of the rotatable member 3 are rotatably mounted on both side walls of the casing 1. The transmission assembly 2 is mounted at one end of the housing 1 and is located between the side wall 11 of the housing and the end cap 4. The transmission assembly 2 is used for driving the developing roller, the powder feeding roller or the stirring frame to rotate. The transmission assembly 2 generally comprises a driving force input gear 20, an agitating frame gear 21, a developing roller gear 22 and an intermediate gear 23, wherein the driving force input gear 20 is coaxially mounted with a power receiving port 24, and the developing roller gear 22 and the agitating frame gear 21 are coaxially mounted with the developing roller and the agitating frame respectively to drive the developing roller and the agitating frame to work respectively. According to different models of the developing boxes, the gear system of the transmission assembly can be adjusted or arranged according to actual requirements.
The developing cartridge of the present invention can be detachably mounted in a printer (image forming apparatus) to cooperate with other structures in the printer, thereby forming an image on a sheet (printing medium).
As shown in fig. 3a-3b and fig. 4, the developing cartridge of the present invention further includes a counting mechanism 5, and the counting mechanism 5 is used for triggering a detection mechanism in the printer to send a corresponding indication signal to the printer. The counting mechanism 5 further comprises a counting mover 51, a guide rail 52, an elastic member 53 and an actuating device 54, wherein the counting mover 51 is used for touching the detection mechanism of the printer, the guide rail 52 has a triangular profile and is used for controlling the counting mover 51 to move from an initial position 525 to a final position 527 via an intermediate position 526 in case of a force applied to the counting mover 51, the elastic member 53 is used for applying a pulling force to the counting mover 51 to move the counting mover 51 along the guide rail 52, and the actuating device 54 is used for forcing the counting mover 51 to move along the guide rail 52.
As shown in fig. 5a and 5b, in one embodiment, the end cap 4 of the developing cartridge of the present invention includes a first through hole 41 having a circular shape and a second through hole 42 having an elongated shape, wherein the power receiving port 24 mounted on the developing cartridge is engaged with a driving head of a printer after passing through the first through hole 41, so as to transmit the driving force of the printer to the developing cartridge. A part of the structure of the counter movable member 51 is exposed to the outside of the end cap 4 through the elongated second through hole 42 (described in detail later). The guide rail 52 is provided on the inner side of the end cap 4, i.e., on the side close to the side wall 11. The end cap 4 is provided with an opening 45, at least a portion of the counting moving member 51 can be exposed to the outside of the end cap 4 through the opening 45, and a user can touch the counting moving member 51 through the opening 45 to push the counting moving member 51 from the final position 527 to the initial position 525. In the developing cartridge of the present invention, the opening 45 is provided at the bottom of the end cap 4.
As shown in fig. 6a and 6b, in one embodiment, the counting moving part 51 includes a body 511, a trigger rod 512 located on one side of the body 511, and a pressure receiving surface 513 located on the other side of the body 511, at least a portion of the trigger rod 512 is located outside the end cap 4 after passing through the second through hole 42, and the trigger rod 512 is used for touching a detection mechanism on the printer so as to send an indication signal to the printer. The pressure-receiving surface 513 is of an arc-shaped configuration, and the actuating device 54 rotates the counter movable element 51 by contacting the pressure-receiving surface 513. The counting mover 51 further includes a guide protrusion 514, the guide protrusion 514 being located on the same side of the body 511 as the trigger lever 512, at least a portion of the guide protrusion 514 being capable of protruding into the guide rail 52 to control the moving path of the counting mover 51.
As shown in fig. 7, a first limit step 521 is provided in the guide rail 52 of the developing cartridge of the present invention, and the first limit step 521 is used to restrict the counter movable member 51 to the initial position 525. Specifically, the cylindrical surface of the guide protrusion 514 contacts the first limit step 521 to limit the movement of the guide protrusion 514.
In the preferred embodiment, the elastic member 53 is an extension spring, and one end of the extension spring 53 is mounted on the end cap 4 and the other end is mounted on the counter movable member 51. Specifically, a first fixed seat 48 is provided on the end cap 4, a second fixed seat 515 is provided on the counting movable member 51, one end of the extension spring 53 is connected to the first fixed seat 48, and the other end is connected to the second fixed seat 515, as shown in fig. 3 a.
As shown in fig. 8a and 8b, in one embodiment, the actuating device 54 of the developing cartridge of the present invention includes a first actuating protrusion 541 and a second actuating protrusion 542, the first actuating protrusion 541 is used for forcing the counter mover 51 to rotate, and the second actuating protrusion 542 is used for forcing the counter mover to move, and the first actuating protrusion 541 and the second actuating protrusion 542 are installed on an end surface of the agitator frame gear 21 away from the side wall 11. The positions of the first and second actuating protrusions 541 and 542 on the end surface of the agitator frame gear 21 are set such that, when the agitator frame gear 21 is rotated, the first actuating protrusion 541 contacts the counter movable element 51 before the second actuating protrusion 542, and specifically, the first actuating protrusion 541 rotates the counter movable element 51 by contacting the arc-shaped pressure receiving surface 513. In the present embodiment, the position of the second actuating protrusion 542 is closer to the center of the agitator frame gear 21 than the position of the first actuating protrusion 541.
Hereinafter, the operation principle and process of the developing cartridge of the present invention, particularly, the operation principle and process of the counting mechanism of the developing cartridge will be described in detail.
When the developing cartridge is in the initial state (i.e., the factory state), the guide protrusion 514 of the counter movable member 51 is located in the guide rail 52 as shown in fig. 9 b. At this time, the actuating device 54 is not in operation, i.e., the first actuating protrusion 541 does not contact the arc-shaped pressure receiving surface 513 of the counting movable element 51, and the second actuating protrusion 542 does not contact the counting movable element 51, as shown in fig. 9 a. The tension spring 53 is in a stretched state in the initial state of the developing cartridge, and exerts a tensile force on the counter movable member 51. Since the guide protrusion 514 of the counting mover 51 is restrained by the first limit step 521, the counting mover 51 is restrained at the initial position 525.
The user loads the cartridge in the initial state into the printer, and at this time, the trigger lever 512 of the counter movable element 51 is in the first position not contacting the detection mechanism of the printer. After the printer is electrically started, the driving force on the printer is transmitted to the stirring frame gear 21 through the driving force input gear 20 to drive the stirring frame gear 21 to rotate. The actuating device 54 provided on the agitator frame gear 21 starts to drive the counting movement member 31 in movement. Specifically, when the stirring rack gear 21 rotates, the first actuating protrusion 541 is brought into contact with the pressure receiving surface 513 of the counting movable member 51 by the stirring rack gear 21, as shown in fig. 9 c. As the first actuation protrusion 541 continues to move along the pressure receiving surface 513, the counter movable member 51 is rotated. At the same time, the guide projection 514 of the counting mover 51 starts to move within the guide track 52 until it moves to the position shown in fig. 10b, i.e. the counting mover 51 is in the intermediate position 526. During this process, second actuation projection 542 does not contact end face 518 of counter-moving member 51.
As the agitator gear 21 continues to rotate, the first actuation protrusion 541 disengages from the pressure receiving surface 513 of the counter movable element 51, at which time the second actuation protrusion 542 begins to contact the end surface 518 of the counter movable element 51, as shown in fig. 10 a. In a preferred embodiment, since the second limit step 522 is provided in the guide rail 52, the guide protrusion 514 may move downward after passing through the second limit step 522, and then the second limit step 522 contacts the cylindrical surface of the guide protrusion 514 to limit the counter-movable member 51 from returning to the initial position 525 in the opposite direction. By providing the second limit step 522, even if the first actuation protrusion 541 is instantaneously disengaged from the pressure receiving surface 513 of the counting movable piece 51 and the second actuation protrusion 542 is not yet in contact with the end surface 518 of the counting movable piece 51, the counting movable piece 51 will not return to the initial position 525 in the opposite direction, which reduces the design and layout difficulties of the first actuation protrusion 541, the second actuation protrusion 542, the pressure receiving surface 513, and other structures.
When the agitator frame gear 21 rotates further, the second actuating protrusion 542 starts to push the counting mover 51 to move under the driving of the agitator frame gear 21 until the guide protrusion 514 of the counting mover 51 moves from the position shown in fig. 10b to the position shown in fig. 11b, i.e., the counting mover 51 is at the other intermediate position 526. At this time, the trigger rod 512 of the counting moving member 51 will also move along the second elongated through hole 42 to trigger the detecting mechanism on the printer, i.e. move from the first position of not contacting the detecting mechanism to the second position of contacting the detecting mechanism, as shown in fig. 12. In this process, the first actuating protrusion 541 has disengaged from the pressure receiving surface 314 of the movable member 51. The extension spring 53 is still in a stretched state.
When the second actuating protrusion 542 continues to push the counter mover 51 to move until the guide protrusion 514 passes the lowest point 519 in the guide track 52, the counter mover 51 is moved by the tension spring 53, and the guide protrusion 514 of the counter mover 51 moves from the position shown in fig. 11b to the position shown in fig. 13b, i.e., the counter mover 51 is moved to the final position 527. At the same time, the trigger rod 512 of the counting movable member 51 will also move along the second elongated through hole 42 to disengage the detection mechanism on the printer, i.e. from the second position of contacting the detection mechanism to the first position of not contacting the detection mechanism, as shown in fig. 14. The counting mechanism 5 now completes the counting function. Thereafter, the actuating device 54 does not contact the counter movable element 51 again during the cyclic rotation of the agitator frame gear 21.
In a preferred embodiment, for some specific models of printers, due to the particularity of the detection timing control, the trigger lever 512 of the movable member 51 needs to be continuously contacted with the detection mechanism for a certain time after contacting the detection mechanism of the printer, and then can be separated from the detection mechanism of the printer. To achieve this particular requirement, in the developing cartridge of the present invention, the actuating device 54 further includes a third actuating protrusion 543, the third actuating protrusion 543 is mounted on the end surface of the agitating frame gear 21, and the second actuating protrusion 542 contacts the counter-movable member prior to the third actuating protrusion 543 when the agitating frame gear 21 rotates. The second actuating protrusion 542 has a fan shape along a sectional shape parallel to the side wall 11. Second actuating protrusion 542 is configured such that, when second actuating protrusion 542 continues to push counter mover 51 to move until trigger lever 512 touches the detection mechanism of the image forming apparatus, after trigger lever 512 touches the detection mechanism of the image forming apparatus, end face 518 of counter mover 51 starts to move along the sector of second actuating protrusion 542 until end face 518 of counter mover 51 moves to third actuating protrusion 543. In this process, the trigger lever 512 is in constant contact with the detection mechanism of the imaging device and the guide protrusion 514 does not pass the lowest point 519 within the guide track 52. Since the third actuating protrusion 543 is farther from the center of the agitator gear 21 than the second actuating protrusion 542, when the end surface 518 of the counter movable element 51 moves to the third actuating protrusion 543, the third actuating protrusion 543 will contact and push the counter movable element 51 to move further until the guide protrusion 514 passes the lowest point 519 in the guide track 52, the counter movable element 51 is moved by the tension spring 53, and the guide protrusion 514 of the counter movable element 51 moves from the position shown in fig. 11b to the position shown in fig. 13 b. The counting mechanism 5 now completes the counting function. Thereafter, the actuating device 54 does not contact the counter movable element 51 again during the cyclic rotation of the agitator frame gear 21.
After the developing box works in the printer for a period of time, the carbon powder in the developing box can be used up, or after the factory detection is finished, a user manually dials the reset part 517 of the counting movable member 51 through the opening 45, so that the guide protrusion 514 of the counting movable member 51 moves from the position shown in fig. 13b to the position shown in fig. 9b along the guide rail 52, and the reset of the counting mechanism of the developing box is realized. After the reset developing cartridge is loaded into the printer, the counting mechanism 5 cycles the above-described working process of the present invention, and the printer treats the used developing cartridge as a new developing cartridge.
In the conventional counting mechanism for detecting the normally open state in the developing cartridge, the moving path of the guide projection in the guide rail needs to be in a closed loop state when the printer operates. The developing box is mainly used for detecting a normally closed printer, and a moving path of a guide protrusion of a counting mechanism in a guide rail does not need to form a closed loop state when the printer works, so that a limiting mechanism in the conventional developing box can be omitted, and a user can reset the counting mechanism by manually shifting a counting moving piece, so that the structure and the working process of the counting mechanism are simpler, and the processing and manufacturing cost is lower.
The above embodiments are only for illustrating the concept and scope of the present invention and are not intended to limit the scope of the present invention. Modifications, equivalents and other improvements which are obvious to those skilled in the art are made to the above-described embodiments and are also within the spirit of the invention. The scope and spirit of the invention are defined by the appended claims.
Claims (11)
1. A developing box comprises a shell, an end cover, a transmission component and a counting mechanism, wherein the transmission component and the counting mechanism are arranged at the end part of the developing box, the transmission component receives driving force from a printer and drives the counting mechanism to work, and the counting mechanism is characterized by comprising:
the counting moving part is provided with a trigger rod for touching a detection mechanism of the printer, and the counting moving part can drive the trigger rod to horizontally move to contact or separate from the detection mechanism of the printer when moving, so that the counting function is realized;
the guide rail is used for controlling the counting movable piece to move from an initial position to a final position through an intermediate position under the condition that the counting movable piece is stressed;
one end of the elastic piece is installed on the end cover of the developing box, and the other end of the elastic piece is installed on the counting movable piece so as to apply elastic force to the counting movable piece; and
an actuating device for forcing the counter-movable member to move along the triangular profile of the guide track;
the counting moving piece is arranged on the guide rail, wherein a first limiting step is arranged in the guide rail and used for limiting the counting moving piece at an initial position;
the end cover is provided with an opening, and at least one part of the counting movable piece is exposed to the outside of the end cover through the opening when the counting movable piece is in the final position, so that the counting movable piece can be manually restored to the initial position from the final position.
2. A cartridge according to claim 1, wherein said transmission assembly includes a gear of the agitator frame, said gear of the agitator frame being mounted coaxially with the rotational axis of the agitator frame.
3. A developing cartridge according to claim 2, wherein said actuating means includes:
a first actuating protrusion for forcing the counting moving member to rotate; and
and the first actuating protrusion and the second actuating protrusion are installed on the end surface of the stirring frame gear, and when the stirring frame gear rotates, the first actuating protrusion contacts the counting movable piece before the second actuating protrusion.
4. A developing cartridge according to claim 3, wherein an arc-shaped pressure receiving surface is provided on the count movable member, and the first actuating projection is brought into contact with the arc-shaped pressure receiving surface when moved by the gear of the agitator frame, thereby rotating the count movable member.
5. A cartridge according to claim 3, wherein said second actuating projection is closer to a center of said agitator frame gear than said first actuating projection.
6. A developing cartridge according to claim 3, wherein said actuating means further includes a third actuating projection mounted on an end surface of the agitator frame gear, and wherein said second actuating projection contacts said counter movable member prior to the third actuating projection when said agitator frame gear rotates.
7. A cartridge according to claim 6, wherein the third actuating projection is closer to the center of the agitator frame gear relative to the first actuating projection and farther from the center of the agitator frame gear relative to the second actuating projection.
8. A developing cartridge according to claim 6, wherein said second actuating projection is fan-shaped in a sectional shape parallel to the side wall.
9. A developing cartridge according to claim 1, wherein a guide projection is provided on the counter movable member, the guide projection projecting into the guide rail to control the movement of the counter movable member along the contour of the guide rail.
10. A developing cartridge according to claim 1, wherein a second limit step for limiting the return of the count movable member to the initial position when the count movable member moves is provided in the guide rail.
11. A cartridge according to claim 1, wherein the guide rail has a triangular profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111389819.8A CN113946109B (en) | 2021-11-23 | 2021-11-23 | Developing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111389819.8A CN113946109B (en) | 2021-11-23 | 2021-11-23 | Developing box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113946109A true CN113946109A (en) | 2022-01-18 |
| CN113946109B CN113946109B (en) | 2024-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111389819.8A Active CN113946109B (en) | 2021-11-23 | 2021-11-23 | Developing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113946109B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4585327A (en) * | 1983-05-12 | 1986-04-29 | Ricoh Company, Ltd. | Service life determining system for image bearing member of copying apparatus and the like |
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| CN216248774U (en) * | 2021-11-23 | 2022-04-08 | 珠海市源呈数码科技有限公司 | Developing box |
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